octave-lojdl/gnulib-hg: regex.c annotate

annotate regex.c @ 460:ea133fff5811

Use `defined' to test HAVE_STRING_H and STDC_HEADERS.

author	Richard Stallman <rms@gnu.org>
date	Tue, 20 Jun 1995 03:11:14 +0000
parents	b08ce70c8b7c
children	115ffc5a3b13

rev	line source
2 d7a0c431b2a0 Initial revision Karl Berry <karl@freefriends.org> parents: diff changeset	1 /* Extended regular expression matching and search library,
47 aa29fd3e6a26 * empty log message * Jim Blandy <jimb@red-bean.com> parents: 45 diff changeset	2 version 0.12.
2 d7a0c431b2a0 Initial revision Karl Berry <karl@freefriends.org> parents: diff changeset	3 (Implements POSIX draft P10003.2/D11.2, except for
d7a0c431b2a0 Initial revision Karl Berry <karl@freefriends.org> parents: diff changeset	4 internationalization features.)
d7a0c431b2a0 Initial revision Karl Berry <karl@freefriends.org> parents: diff changeset	5
438 c0450a60d9d1 Updated from ../gpl2lgpl.sed /home/gd/gnu/lib/regex.c Roland McGrath <roland@gnu.org> parents: 436 diff changeset	6 Copyright (C) 1993, 1994, 1995 Free Software Foundation, Inc.
2 d7a0c431b2a0 Initial revision Karl Berry <karl@freefriends.org> parents: diff changeset	7
441 403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	8 This program is free software; you can redistribute it and/or modify
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	9 it under the terms of the GNU General Public License as published by
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	10 the Free Software Foundation; either version 2, or (at your option)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	11 any later version.
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	12
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	13 This program is distributed in the hope that it will be useful,
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	14 but WITHOUT ANY WARRANTY; without even the implied warranty of
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	16 GNU General Public License for more details.
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	17
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	18 You should have received a copy of the GNU General Public License
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	19 along with this program; if not, write to the Free Software
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	20 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	21
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	22 /* AIX requires this to be the first thing in the file. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	23 #if defined (_AIX) && !defined (REGEX_MALLOC)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	24 #pragma alloca
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	25 #endif
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	26
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	27 #define _GNU_SOURCE
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	28
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	29 #ifdef HAVE_CONFIG_H
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	30 #include <config.h>
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	31 #endif
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	32
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	33 /* We need this for `regex.h', and perhaps for the Emacs include files. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	34 #include <sys/types.h>
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	35
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	36 /* This is for other GNU distributions with internationalized messages. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	37 #if HAVE_LIBINTL_H \|\| defined (_LIBC)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	38 # include <libintl.h>
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	39 #else
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	40 # define gettext(msgid) (msgid)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	41 #endif
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	42
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	43 /* The `emacs' switch turns on certain matching commands
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	44 that make sense only in Emacs. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	45 #ifdef emacs
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	46
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	47 #include "lisp.h"
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	48 #include "buffer.h"
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	49 #include "syntax.h"
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	50
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	51 #else /* not emacs */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	52
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	53 /* If we are not linking with Emacs proper,
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	54 we can't use the relocating allocator
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	55 even if config.h says that we can. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	56 #undef REL_ALLOC
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	57
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	58 #if defined (STDC_HEADERS) \|\| defined (_LIBC)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	59 #include <stdlib.h>
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	60 #else
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	61 char *malloc ();
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	62 char *realloc ();
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	63 #endif
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	64
451 b08ce70c8b7c Undefined INHIBIT_STRING_HEADER when we have no Karl Heuer <kwzh@gnu.org> parents: 449 diff changeset	65 /* When used in Emacs's lib-src, we need to get bzero and bcopy somehow.
b08ce70c8b7c Undefined INHIBIT_STRING_HEADER when we have no Karl Heuer <kwzh@gnu.org> parents: 449 diff changeset	66 If nothing else has been done, use the method below. */
b08ce70c8b7c Undefined INHIBIT_STRING_HEADER when we have no Karl Heuer <kwzh@gnu.org> parents: 449 diff changeset	67 #ifdef INHIBIT_STRING_HEADER
b08ce70c8b7c Undefined INHIBIT_STRING_HEADER when we have no Karl Heuer <kwzh@gnu.org> parents: 449 diff changeset	68 #if !(defined (HAVE_BZERO) && defined (HAVE_BCOPY))
b08ce70c8b7c Undefined INHIBIT_STRING_HEADER when we have no Karl Heuer <kwzh@gnu.org> parents: 449 diff changeset	69 #if !defined (bzero) && !defined (bcopy)
b08ce70c8b7c Undefined INHIBIT_STRING_HEADER when we have no Karl Heuer <kwzh@gnu.org> parents: 449 diff changeset	70 #undef INHIBIT_STRING_HEADER
b08ce70c8b7c Undefined INHIBIT_STRING_HEADER when we have no Karl Heuer <kwzh@gnu.org> parents: 449 diff changeset	71 #endif
b08ce70c8b7c Undefined INHIBIT_STRING_HEADER when we have no Karl Heuer <kwzh@gnu.org> parents: 449 diff changeset	72 #endif
b08ce70c8b7c Undefined INHIBIT_STRING_HEADER when we have no Karl Heuer <kwzh@gnu.org> parents: 449 diff changeset	73 #endif
b08ce70c8b7c Undefined INHIBIT_STRING_HEADER when we have no Karl Heuer <kwzh@gnu.org> parents: 449 diff changeset	74
b08ce70c8b7c Undefined INHIBIT_STRING_HEADER when we have no Karl Heuer <kwzh@gnu.org> parents: 449 diff changeset	75 /* This is the normal way of making sure we have a bcopy and a bzero.
b08ce70c8b7c Undefined INHIBIT_STRING_HEADER when we have no Karl Heuer <kwzh@gnu.org> parents: 449 diff changeset	76 This is used in most programs--a few other programs avoid this
b08ce70c8b7c Undefined INHIBIT_STRING_HEADER when we have no Karl Heuer <kwzh@gnu.org> parents: 449 diff changeset	77 by defining INHIBIT_STRING_HEADER. */
441 403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	78 #ifndef INHIBIT_STRING_HEADER
460 ea133fff5811 Use `defined' to test HAVE_STRING_H and STDC_HEADERS. Richard Stallman <rms@gnu.org> parents: 451 diff changeset	79 #if defined (HAVE_STRING_H) \|\| defined (STDC_HEADERS) \|\| defined (_LIBC)
441 403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	80 #include <string.h>
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	81 #ifndef bcmp
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	82 #define bcmp(s1, s2, n) memcmp ((s1), (s2), (n))
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	83 #endif
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	84 #ifndef bcopy
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	85 #define bcopy(s, d, n) memcpy ((d), (s), (n))
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	86 #endif
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	87 #ifndef bzero
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	88 #define bzero(s, n) memset ((s), 0, (n))
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	89 #endif
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	90 #else
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	91 #include <strings.h>
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	92 #endif
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	93 #endif
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	94
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	95 /* Define the syntax stuff for \<, \>, etc. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	96
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	97 /* This must be nonzero for the wordchar and notwordchar pattern
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	98 commands in re_match_2. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	99 #ifndef Sword
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	100 #define Sword 1
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	101 #endif
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	102
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	103 #ifdef SWITCH_ENUM_BUG
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	104 #define SWITCH_ENUM_CAST(x) ((int)(x))
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	105 #else
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	106 #define SWITCH_ENUM_CAST(x) (x)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	107 #endif
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	108
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	109 #ifdef SYNTAX_TABLE
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	110
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	111 extern char *re_syntax_table;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	112
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	113 #else /* not SYNTAX_TABLE */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	114
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	115 /* How many characters in the character set. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	116 #define CHAR_SET_SIZE 256
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	117
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	118 static char re_syntax_table[CHAR_SET_SIZE];
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	119
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	120 static void
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	121 init_syntax_once ()
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	122 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	123 register int c;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	124 static int done = 0;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	125
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	126 if (done)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	127 return;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	128
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	129 bzero (re_syntax_table, sizeof re_syntax_table);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	130
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	131 for (c = 'a'; c <= 'z'; c++)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	132 re_syntax_table[c] = Sword;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	133
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	134 for (c = 'A'; c <= 'Z'; c++)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	135 re_syntax_table[c] = Sword;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	136
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	137 for (c = '0'; c <= '9'; c++)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	138 re_syntax_table[c] = Sword;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	139
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	140 re_syntax_table['_'] = Sword;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	141
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	142 done = 1;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	143 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	144
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	145 #endif /* not SYNTAX_TABLE */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	146
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	147 #define SYNTAX(c) re_syntax_table[c]
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	148
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	149 #endif /* not emacs */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	150
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	151 /* Get the interface, including the syntax bits. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	152 #include "regex.h"
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	153
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	154 /* isalpha etc. are used for the character classes. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	155 #include <ctype.h>
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	156
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	157 /* Jim Meyering writes:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	158
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	159 "... Some ctype macros are valid only for character codes that
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	160 isascii says are ASCII (SGI's IRIX-4.0.5 is one such system --when
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	161 using /bin/cc or gcc but without giving an ansi option). So, all
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	162 ctype uses should be through macros like ISPRINT... If
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	163 STDC_HEADERS is defined, then autoconf has verified that the ctype
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	164 macros don't need to be guarded with references to isascii. ...
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	165 Defining isascii to 1 should let any compiler worth its salt
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	166 eliminate the && through constant folding." */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	167
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	168 #if defined (STDC_HEADERS) \|\| (!defined (isascii) && !defined (HAVE_ISASCII))
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	169 #define ISASCII(c) 1
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	170 #else
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	171 #define ISASCII(c) isascii(c)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	172 #endif
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	173
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	174 #ifdef isblank
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	175 #define ISBLANK(c) (ISASCII (c) && isblank (c))
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	176 #else
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	177 #define ISBLANK(c) ((c) == ' ' \|\| (c) == '\t')
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	178 #endif
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	179 #ifdef isgraph
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	180 #define ISGRAPH(c) (ISASCII (c) && isgraph (c))
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	181 #else
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	182 #define ISGRAPH(c) (ISASCII (c) && isprint (c) && !isspace (c))
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	183 #endif
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	184
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	185 #define ISPRINT(c) (ISASCII (c) && isprint (c))
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	186 #define ISDIGIT(c) (ISASCII (c) && isdigit (c))
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	187 #define ISALNUM(c) (ISASCII (c) && isalnum (c))
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	188 #define ISALPHA(c) (ISASCII (c) && isalpha (c))
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	189 #define ISCNTRL(c) (ISASCII (c) && iscntrl (c))
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	190 #define ISLOWER(c) (ISASCII (c) && islower (c))
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	191 #define ISPUNCT(c) (ISASCII (c) && ispunct (c))
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	192 #define ISSPACE(c) (ISASCII (c) && isspace (c))
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	193 #define ISUPPER(c) (ISASCII (c) && isupper (c))
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	194 #define ISXDIGIT(c) (ISASCII (c) && isxdigit (c))
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	195
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	196 #ifndef NULL
447 5607a4b33402 (NULL): Use explicit cast. Karl Heuer <kwzh@gnu.org> parents: 442 diff changeset	197 #define NULL (void *)0
441 403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	198 #endif
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	199
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	200 /* We remove any previous definition of `SIGN_EXTEND_CHAR',
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	201 since ours (we hope) works properly with all combinations of
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	202 machines, compilers, `char' and `unsigned char' argument types.
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	203 (Per Bothner suggested the basic approach.) */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	204 #undef SIGN_EXTEND_CHAR
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	205 #if __STDC__
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	206 #define SIGN_EXTEND_CHAR(c) ((signed char) (c))
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	207 #else /* not __STDC__ */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	208 /* As in Harbison and Steele. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	209 #define SIGN_EXTEND_CHAR(c) ((((unsigned char) (c)) ^ 128) - 128)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	210 #endif
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	211
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	212 /* Should we use malloc or alloca? If REGEX_MALLOC is not defined, we
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	213 use `alloca' instead of `malloc'. This is because using malloc in
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	214 re_search* or re_match* could cause memory leaks when C-g is used in
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	215 Emacs; also, malloc is slower and causes storage fragmentation. On
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	216 the other hand, malloc is more portable, and easier to debug.
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	217
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	218 Because we sometimes use alloca, some routines have to be macros,
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	219 not functions -- `alloca'-allocated space disappears at the end of the
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	220 function it is called in. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	221
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	222 #ifdef REGEX_MALLOC
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	223
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	224 #define REGEX_ALLOCATE malloc
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	225 #define REGEX_REALLOCATE(source, osize, nsize) realloc (source, nsize)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	226 #define REGEX_FREE free
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	227
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	228 #else /* not REGEX_MALLOC */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	229
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	230 /* Emacs already defines alloca, sometimes. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	231 #ifndef alloca
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	232
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	233 /* Make alloca work the best possible way. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	234 #ifdef __GNUC__
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	235 #define alloca __builtin_alloca
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	236 #else /* not __GNUC__ */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	237 #if HAVE_ALLOCA_H
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	238 #include <alloca.h>
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	239 #else /* not __GNUC__ or HAVE_ALLOCA_H */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	240 #ifndef _AIX /* Already did AIX, up at the top. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	241 char *alloca ();
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	242 #endif /* not _AIX */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	243 #endif /* not HAVE_ALLOCA_H */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	244 #endif /* not __GNUC__ */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	245
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	246 #endif /* not alloca */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	247
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	248 #define REGEX_ALLOCATE alloca
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	249
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	250 /* Assumes a `char destination' variable. /
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	251 #define REGEX_REALLOCATE(source, osize, nsize) \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	252 (destination = (char *) alloca (nsize), \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	253 bcopy (source, destination, osize), \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	254 destination)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	255
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	256 /* No need to do anything to free, after alloca. */
442 a7b85a203afa [REGEX_FREE]: Use ((void)0) instead of just (0). Jim Meyering <jim@meyering.net> parents: 441 diff changeset	257 #define REGEX_FREE(arg) ((void)0) /* Do nothing! But inhibit gcc warning. */
441 403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	258
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	259 #endif /* not REGEX_MALLOC */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	260
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	261 /* Define how to allocate the failure stack. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	262
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	263 #ifdef REL_ALLOC
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	264 #define REGEX_ALLOCATE_STACK(size) \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	265 r_alloc (&failure_stack_ptr, (size))
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	266 #define REGEX_REALLOCATE_STACK(source, osize, nsize) \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	267 r_re_alloc (&failure_stack_ptr, (nsize))
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	268 #define REGEX_FREE_STACK(ptr) \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	269 r_alloc_free (&failure_stack_ptr)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	270
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	271 #else /* not REL_ALLOC */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	272
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	273 #ifdef REGEX_MALLOC
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	274
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	275 #define REGEX_ALLOCATE_STACK malloc
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	276 #define REGEX_REALLOCATE_STACK(source, osize, nsize) realloc (source, nsize)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	277 #define REGEX_FREE_STACK free
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	278
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	279 #else /* not REGEX_MALLOC */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	280
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	281 #define REGEX_ALLOCATE_STACK alloca
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	282
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	283 #define REGEX_REALLOCATE_STACK(source, osize, nsize) \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	284 REGEX_REALLOCATE (source, osize, nsize)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	285 /* No need to explicitly free anything. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	286 #define REGEX_FREE_STACK(arg)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	287
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	288 #endif /* not REGEX_MALLOC */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	289 #endif /* not REL_ALLOC */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	290
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	291
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	292 /* True if `size1' is non-NULL and PTR is pointing anywhere inside
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	293 `string1' or just past its end. This works if PTR is NULL, which is
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	294 a good thing. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	295 #define FIRST_STRING_P(ptr) \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	296 (size1 && string1 <= (ptr) && (ptr) <= string1 + size1)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	297
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	298 /* (Re)Allocate N items of type T using malloc, or fail. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	299 #define TALLOC(n, t) ((t ) malloc ((n) sizeof (t)))
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	300 #define RETALLOC(addr, n, t) ((addr) = (t ) realloc (addr, (n) sizeof (t)))
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	301 #define RETALLOC_IF(addr, n, t) \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	302 if (addr) RETALLOC((addr), (n), t); else (addr) = TALLOC ((n), t)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	303 #define REGEX_TALLOC(n, t) ((t ) REGEX_ALLOCATE ((n) sizeof (t)))
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	304
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	305 #define BYTEWIDTH 8 /* In bits. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	306
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	307 #define STREQ(s1, s2) ((strcmp (s1, s2) == 0))
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	308
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	309 #undef MAX
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	310 #undef MIN
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	311 #define MAX(a, b) ((a) > (b) ? (a) : (b))
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	312 #define MIN(a, b) ((a) < (b) ? (a) : (b))
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	313
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	314 typedef char boolean;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	315 #define false 0
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	316 #define true 1
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	317
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	318 static int re_match_2_internal ();
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	319
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	320 /* These are the command codes that appear in compiled regular
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	321 expressions. Some opcodes are followed by argument bytes. A
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	322 command code can specify any interpretation whatsoever for its
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	323 arguments. Zero bytes may appear in the compiled regular expression. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	324
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	325 typedef enum
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	326 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	327 no_op = 0,
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	328
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	329 /* Succeed right away--no more backtracking. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	330 succeed,
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	331
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	332 /* Followed by one byte giving n, then by n literal bytes. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	333 exactn,
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	334
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	335 /* Matches any (more or less) character. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	336 anychar,
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	337
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	338 /* Matches any one char belonging to specified set. First
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	339 following byte is number of bitmap bytes. Then come bytes
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	340 for a bitmap saying which chars are in. Bits in each byte
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	341 are ordered low-bit-first. A character is in the set if its
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	342 bit is 1. A character too large to have a bit in the map is
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	343 automatically not in the set. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	344 charset,
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	345
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	346 /* Same parameters as charset, but match any character that is
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	347 not one of those specified. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	348 charset_not,
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	349
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	350 /* Start remembering the text that is matched, for storing in a
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	351 register. Followed by one byte with the register number, in
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	352 the range 0 to one less than the pattern buffer's re_nsub
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	353 field. Then followed by one byte with the number of groups
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	354 inner to this one. (This last has to be part of the
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	355 start_memory only because we need it in the on_failure_jump
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	356 of re_match_2.) */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	357 start_memory,
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	358
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	359 /* Stop remembering the text that is matched and store it in a
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	360 memory register. Followed by one byte with the register
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	361 number, in the range 0 to one less than `re_nsub' in the
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	362 pattern buffer, and one byte with the number of inner groups,
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	363 just like `start_memory'. (We need the number of inner
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	364 groups here because we don't have any easy way of finding the
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	365 corresponding start_memory when we're at a stop_memory.) */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	366 stop_memory,
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	367
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	368 /* Match a duplicate of something remembered. Followed by one
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	369 byte containing the register number. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	370 duplicate,
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	371
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	372 /* Fail unless at beginning of line. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	373 begline,
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	374
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	375 /* Fail unless at end of line. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	376 endline,
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	377
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	378 /* Succeeds if at beginning of buffer (if emacs) or at beginning
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	379 of string to be matched (if not). */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	380 begbuf,
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	381
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	382 /* Analogously, for end of buffer/string. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	383 endbuf,
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	384
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	385 /* Followed by two byte relative address to which to jump. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	386 jump,
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	387
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	388 /* Same as jump, but marks the end of an alternative. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	389 jump_past_alt,
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	390
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	391 /* Followed by two-byte relative address of place to resume at
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	392 in case of failure. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	393 on_failure_jump,
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	394
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	395 /* Like on_failure_jump, but pushes a placeholder instead of the
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	396 current string position when executed. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	397 on_failure_keep_string_jump,
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	398
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	399 /* Throw away latest failure point and then jump to following
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	400 two-byte relative address. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	401 pop_failure_jump,
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	402
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	403 /* Change to pop_failure_jump if know won't have to backtrack to
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	404 match; otherwise change to jump. This is used to jump
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	405 back to the beginning of a repeat. If what follows this jump
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	406 clearly won't match what the repeat does, such that we can be
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	407 sure that there is no use backtracking out of repetitions
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	408 already matched, then we change it to a pop_failure_jump.
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	409 Followed by two-byte address. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	410 maybe_pop_jump,
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	411
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	412 /* Jump to following two-byte address, and push a dummy failure
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	413 point. This failure point will be thrown away if an attempt
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	414 is made to use it for a failure. A `+' construct makes this
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	415 before the first repeat. Also used as an intermediary kind
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	416 of jump when compiling an alternative. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	417 dummy_failure_jump,
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	418
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	419 /* Push a dummy failure point and continue. Used at the end of
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	420 alternatives. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	421 push_dummy_failure,
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	422
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	423 /* Followed by two-byte relative address and two-byte number n.
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	424 After matching N times, jump to the address upon failure. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	425 succeed_n,
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	426
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	427 /* Followed by two-byte relative address, and two-byte number n.
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	428 Jump to the address N times, then fail. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	429 jump_n,
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	430
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	431 /* Set the following two-byte relative address to the
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	432 subsequent two-byte number. The address includes the two
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	433 bytes of number. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	434 set_number_at,
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	435
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	436 wordchar, /* Matches any word-constituent character. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	437 notwordchar, /* Matches any char that is not a word-constituent. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	438
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	439 wordbeg, /* Succeeds if at word beginning. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	440 wordend, /* Succeeds if at word end. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	441
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	442 wordbound, /* Succeeds if at a word boundary. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	443 notwordbound /* Succeeds if not at a word boundary. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	444
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	445 #ifdef emacs
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	446 ,before_dot, /* Succeeds if before point. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	447 at_dot, /* Succeeds if at point. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	448 after_dot, /* Succeeds if after point. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	449
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	450 /* Matches any character whose syntax is specified. Followed by
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	451 a byte which contains a syntax code, e.g., Sword. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	452 syntaxspec,
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	453
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	454 /* Matches any character whose syntax is not that specified. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	455 notsyntaxspec
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	456 #endif /* emacs */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	457 } re_opcode_t;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	458
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	459 /* Common operations on the compiled pattern. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	460
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	461 /* Store NUMBER in two contiguous bytes starting at DESTINATION. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	462
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	463 #define STORE_NUMBER(destination, number) \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	464 do { \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	465 (destination)[0] = (number) & 0377; \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	466 (destination)[1] = (number) >> 8; \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	467 } while (0)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	468
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	469 /* Same as STORE_NUMBER, except increment DESTINATION to
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	470 the byte after where the number is stored. Therefore, DESTINATION
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	471 must be an lvalue. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	472
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	473 #define STORE_NUMBER_AND_INCR(destination, number) \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	474 do { \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	475 STORE_NUMBER (destination, number); \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	476 (destination) += 2; \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	477 } while (0)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	478
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	479 /* Put into DESTINATION a number stored in two contiguous bytes starting
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	480 at SOURCE. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	481
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	482 #define EXTRACT_NUMBER(destination, source) \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	483 do { \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	484 (destination) = *(source) & 0377; \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	485 (destination) += SIGN_EXTEND_CHAR (*((source) + 1)) << 8; \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	486 } while (0)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	487
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	488 #ifdef DEBUG
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	489 static void
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	490 extract_number (dest, source)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	491 int *dest;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	492 unsigned char *source;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	493 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	494 int temp = SIGN_EXTEND_CHAR (*(source + 1));
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	495 dest = source & 0377;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	496 *dest += temp << 8;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	497 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	498
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	499 #ifndef EXTRACT_MACROS /* To debug the macros. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	500 #undef EXTRACT_NUMBER
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	501 #define EXTRACT_NUMBER(dest, src) extract_number (&dest, src)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	502 #endif /* not EXTRACT_MACROS */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	503
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	504 #endif /* DEBUG */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	505
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	506 /* Same as EXTRACT_NUMBER, except increment SOURCE to after the number.
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	507 SOURCE must be an lvalue. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	508
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	509 #define EXTRACT_NUMBER_AND_INCR(destination, source) \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	510 do { \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	511 EXTRACT_NUMBER (destination, source); \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	512 (source) += 2; \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	513 } while (0)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	514
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	515 #ifdef DEBUG
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	516 static void
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	517 extract_number_and_incr (destination, source)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	518 int *destination;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	519 unsigned char **source;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	520 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	521 extract_number (destination, *source);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	522 *source += 2;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	523 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	524
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	525 #ifndef EXTRACT_MACROS
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	526 #undef EXTRACT_NUMBER_AND_INCR
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	527 #define EXTRACT_NUMBER_AND_INCR(dest, src) \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	528 extract_number_and_incr (&dest, &src)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	529 #endif /* not EXTRACT_MACROS */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	530
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	531 #endif /* DEBUG */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	532
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	533 /* If DEBUG is defined, Regex prints many voluminous messages about what
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	534 it is doing (if the variable `debug' is nonzero). If linked with the
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	535 main program in `iregex.c', you can enter patterns and strings
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	536 interactively. And if linked with the main program in `main.c' and
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	537 the other test files, you can run the already-written tests. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	538
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	539 #ifdef DEBUG
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	540
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	541 /* We use standard I/O for debugging. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	542 #include <stdio.h>
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	543
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	544 /* It is useful to test things that ``must'' be true when debugging. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	545 #include <assert.h>
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	546
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	547 static int debug = 0;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	548
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	549 #define DEBUG_STATEMENT(e) e
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	550 #define DEBUG_PRINT1(x) if (debug) printf (x)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	551 #define DEBUG_PRINT2(x1, x2) if (debug) printf (x1, x2)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	552 #define DEBUG_PRINT3(x1, x2, x3) if (debug) printf (x1, x2, x3)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	553 #define DEBUG_PRINT4(x1, x2, x3, x4) if (debug) printf (x1, x2, x3, x4)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	554 #define DEBUG_PRINT_COMPILED_PATTERN(p, s, e) \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	555 if (debug) print_partial_compiled_pattern (s, e)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	556 #define DEBUG_PRINT_DOUBLE_STRING(w, s1, sz1, s2, sz2) \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	557 if (debug) print_double_string (w, s1, sz1, s2, sz2)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	558
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	559
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	560 /* Print the fastmap in human-readable form. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	561
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	562 void
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	563 print_fastmap (fastmap)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	564 char *fastmap;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	565 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	566 unsigned was_a_range = 0;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	567 unsigned i = 0;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	568
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	569 while (i < (1 << BYTEWIDTH))
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	570 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	571 if (fastmap[i++])
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	572 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	573 was_a_range = 0;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	574 putchar (i - 1);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	575 while (i < (1 << BYTEWIDTH) && fastmap[i])
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	576 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	577 was_a_range = 1;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	578 i++;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	579 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	580 if (was_a_range)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	581 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	582 printf ("-");
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	583 putchar (i - 1);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	584 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	585 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	586 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	587 putchar ('\n');
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	588 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	589
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	590
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	591 /* Print a compiled pattern string in human-readable form, starting at
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	592 the START pointer into it and ending just before the pointer END. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	593
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	594 void
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	595 print_partial_compiled_pattern (start, end)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	596 unsigned char *start;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	597 unsigned char *end;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	598 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	599 int mcnt, mcnt2;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	600 unsigned char *p = start;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	601 unsigned char *pend = end;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	602
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	603 if (start == NULL)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	604 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	605 printf ("(null)\n");
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	606 return;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	607 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	608
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	609 /* Loop over pattern commands. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	610 while (p < pend)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	611 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	612 printf ("%d:\t", p - start);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	613
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	614 switch ((re_opcode_t) *p++)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	615 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	616 case no_op:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	617 printf ("/no_op");
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	618 break;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	619
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	620 case exactn:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	621 mcnt = *p++;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	622 printf ("/exactn/%d", mcnt);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	623 do
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	624 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	625 putchar ('/');
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	626 putchar (*p++);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	627 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	628 while (--mcnt);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	629 break;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	630
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	631 case start_memory:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	632 mcnt = *p++;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	633 printf ("/start_memory/%d/%d", mcnt, *p++);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	634 break;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	635
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	636 case stop_memory:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	637 mcnt = *p++;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	638 printf ("/stop_memory/%d/%d", mcnt, *p++);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	639 break;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	640
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	641 case duplicate:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	642 printf ("/duplicate/%d", *p++);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	643 break;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	644
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	645 case anychar:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	646 printf ("/anychar");
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	647 break;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	648
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	649 case charset:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	650 case charset_not:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	651 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	652 register int c, last = -100;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	653 register int in_range = 0;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	654
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	655 printf ("/charset [%s",
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	656 (re_opcode_t) *(p - 1) == charset_not ? "^" : "");
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	657
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	658 assert (p + *p < pend);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	659
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	660 for (c = 0; c < 256; c++)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	661 if (c / 8 < *p
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	662 && (p[1 + (c/8)] & (1 << (c % 8))))
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	663 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	664 /* Are we starting a range? */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	665 if (last + 1 == c && ! in_range)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	666 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	667 putchar ('-');
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	668 in_range = 1;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	669 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	670 /* Have we broken a range? */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	671 else if (last + 1 != c && in_range)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	672 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	673 putchar (last);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	674 in_range = 0;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	675 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	676
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	677 if (! in_range)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	678 putchar (c);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	679
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	680 last = c;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	681 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	682
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	683 if (in_range)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	684 putchar (last);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	685
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	686 putchar (']');
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	687
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	688 p += 1 + *p;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	689 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	690 break;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	691
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	692 case begline:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	693 printf ("/begline");
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	694 break;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	695
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	696 case endline:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	697 printf ("/endline");
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	698 break;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	699
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	700 case on_failure_jump:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	701 extract_number_and_incr (&mcnt, &p);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	702 printf ("/on_failure_jump to %d", p + mcnt - start);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	703 break;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	704
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	705 case on_failure_keep_string_jump:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	706 extract_number_and_incr (&mcnt, &p);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	707 printf ("/on_failure_keep_string_jump to %d", p + mcnt - start);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	708 break;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	709
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	710 case dummy_failure_jump:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	711 extract_number_and_incr (&mcnt, &p);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	712 printf ("/dummy_failure_jump to %d", p + mcnt - start);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	713 break;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	714
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	715 case push_dummy_failure:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	716 printf ("/push_dummy_failure");
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	717 break;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	718
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	719 case maybe_pop_jump:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	720 extract_number_and_incr (&mcnt, &p);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	721 printf ("/maybe_pop_jump to %d", p + mcnt - start);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	722 break;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	723
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	724 case pop_failure_jump:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	725 extract_number_and_incr (&mcnt, &p);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	726 printf ("/pop_failure_jump to %d", p + mcnt - start);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	727 break;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	728
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	729 case jump_past_alt:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	730 extract_number_and_incr (&mcnt, &p);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	731 printf ("/jump_past_alt to %d", p + mcnt - start);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	732 break;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	733
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	734 case jump:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	735 extract_number_and_incr (&mcnt, &p);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	736 printf ("/jump to %d", p + mcnt - start);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	737 break;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	738
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	739 case succeed_n:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	740 extract_number_and_incr (&mcnt, &p);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	741 extract_number_and_incr (&mcnt2, &p);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	742 printf ("/succeed_n to %d, %d times", p + mcnt - start, mcnt2);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	743 break;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	744
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	745 case jump_n:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	746 extract_number_and_incr (&mcnt, &p);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	747 extract_number_and_incr (&mcnt2, &p);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	748 printf ("/jump_n to %d, %d times", p + mcnt - start, mcnt2);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	749 break;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	750
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	751 case set_number_at:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	752 extract_number_and_incr (&mcnt, &p);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	753 extract_number_and_incr (&mcnt2, &p);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	754 printf ("/set_number_at location %d to %d", p + mcnt - start, mcnt2);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	755 break;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	756
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	757 case wordbound:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	758 printf ("/wordbound");
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	759 break;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	760
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	761 case notwordbound:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	762 printf ("/notwordbound");
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	763 break;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	764
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	765 case wordbeg:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	766 printf ("/wordbeg");
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	767 break;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	768
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	769 case wordend:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	770 printf ("/wordend");
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	771
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	772 #ifdef emacs
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	773 case before_dot:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	774 printf ("/before_dot");
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	775 break;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	776
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	777 case at_dot:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	778 printf ("/at_dot");
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	779 break;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	780
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	781 case after_dot:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	782 printf ("/after_dot");
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	783 break;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	784
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	785 case syntaxspec:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	786 printf ("/syntaxspec");
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	787 mcnt = *p++;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	788 printf ("/%d", mcnt);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	789 break;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	790
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	791 case notsyntaxspec:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	792 printf ("/notsyntaxspec");
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	793 mcnt = *p++;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	794 printf ("/%d", mcnt);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	795 break;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	796 #endif /* emacs */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	797
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	798 case wordchar:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	799 printf ("/wordchar");
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	800 break;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	801
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	802 case notwordchar:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	803 printf ("/notwordchar");
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	804 break;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	805
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	806 case begbuf:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	807 printf ("/begbuf");
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	808 break;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	809
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	810 case endbuf:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	811 printf ("/endbuf");
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	812 break;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	813
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	814 default:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	815 printf ("?%d", *(p-1));
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	816 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	817
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	818 putchar ('\n');
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	819 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	820
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	821 printf ("%d:\tend of pattern.\n", p - start);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	822 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	823
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	824
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	825 void
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	826 print_compiled_pattern (bufp)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	827 struct re_pattern_buffer *bufp;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	828 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	829 unsigned char *buffer = bufp->buffer;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	830
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	831 print_partial_compiled_pattern (buffer, buffer + bufp->used);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	832 printf ("%d bytes used/%d bytes allocated.\n", bufp->used, bufp->allocated);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	833
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	834 if (bufp->fastmap_accurate && bufp->fastmap)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	835 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	836 printf ("fastmap: ");
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	837 print_fastmap (bufp->fastmap);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	838 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	839
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	840 printf ("re_nsub: %d\t", bufp->re_nsub);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	841 printf ("regs_alloc: %d\t", bufp->regs_allocated);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	842 printf ("can_be_null: %d\t", bufp->can_be_null);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	843 printf ("newline_anchor: %d\n", bufp->newline_anchor);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	844 printf ("no_sub: %d\t", bufp->no_sub);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	845 printf ("not_bol: %d\t", bufp->not_bol);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	846 printf ("not_eol: %d\t", bufp->not_eol);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	847 printf ("syntax: %d\n", bufp->syntax);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	848 /* Perhaps we should print the translate table? */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	849 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	850
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	851
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	852 void
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	853 print_double_string (where, string1, size1, string2, size2)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	854 const char *where;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	855 const char *string1;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	856 const char *string2;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	857 int size1;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	858 int size2;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	859 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	860 unsigned this_char;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	861
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	862 if (where == NULL)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	863 printf ("(null)");
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	864 else
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	865 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	866 if (FIRST_STRING_P (where))
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	867 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	868 for (this_char = where - string1; this_char < size1; this_char++)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	869 putchar (string1[this_char]);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	870
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	871 where = string2;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	872 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	873
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	874 for (this_char = where - string2; this_char < size2; this_char++)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	875 putchar (string2[this_char]);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	876 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	877 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	878
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	879 #else /* not DEBUG */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	880
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	881 #undef assert
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	882 #define assert(e)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	883
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	884 #define DEBUG_STATEMENT(e)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	885 #define DEBUG_PRINT1(x)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	886 #define DEBUG_PRINT2(x1, x2)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	887 #define DEBUG_PRINT3(x1, x2, x3)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	888 #define DEBUG_PRINT4(x1, x2, x3, x4)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	889 #define DEBUG_PRINT_COMPILED_PATTERN(p, s, e)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	890 #define DEBUG_PRINT_DOUBLE_STRING(w, s1, sz1, s2, sz2)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	891
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	892 #endif /* not DEBUG */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	893
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	894 /* Set by `re_set_syntax' to the current regexp syntax to recognize. Can
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	895 also be assigned to arbitrarily: each pattern buffer stores its own
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	896 syntax, so it can be changed between regex compilations. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	897 /* This has no initializer because initialized variables in Emacs
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	898 become read-only after dumping. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	899 reg_syntax_t re_syntax_options;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	900
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	901
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	902 /* Specify the precise syntax of regexps for compilation. This provides
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	903 for compatibility for various utilities which historically have
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	904 different, incompatible syntaxes.
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	905
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	906 The argument SYNTAX is a bit mask comprised of the various bits
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	907 defined in regex.h. We return the old syntax. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	908
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	909 reg_syntax_t
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	910 re_set_syntax (syntax)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	911 reg_syntax_t syntax;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	912 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	913 reg_syntax_t ret = re_syntax_options;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	914
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	915 re_syntax_options = syntax;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	916 return ret;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	917 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	918
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	919 /* This table gives an error message for each of the error codes listed
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	920 in regex.h. Obviously the order here has to be same as there.
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	921 POSIX doesn't require that we do anything for REG_NOERROR,
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	922 but why not be nice? */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	923
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	924 static const char *re_error_msgid[] =
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	925 { "Success", /* REG_NOERROR */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	926 "No match", /* REG_NOMATCH */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	927 "Invalid regular expression", /* REG_BADPAT */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	928 "Invalid collation character", /* REG_ECOLLATE */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	929 "Invalid character class name", /* REG_ECTYPE */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	930 "Trailing backslash", /* REG_EESCAPE */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	931 "Invalid back reference", /* REG_ESUBREG */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	932 "Unmatched [ or [^", /* REG_EBRACK */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	933 "Unmatched ( or \\(", /* REG_EPAREN */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	934 "Unmatched \\{", /* REG_EBRACE */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	935 "Invalid content of \\{\\}", /* REG_BADBR */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	936 "Invalid range end", /* REG_ERANGE */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	937 "Memory exhausted", /* REG_ESPACE */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	938 "Invalid preceding regular expression", /* REG_BADRPT */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	939 "Premature end of regular expression", /* REG_EEND */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	940 "Regular expression too big", /* REG_ESIZE */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	941 "Unmatched ) or \\)", /* REG_ERPAREN */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	942 };
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	943
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	944 /* Avoiding alloca during matching, to placate r_alloc. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	945
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	946 /* Define MATCH_MAY_ALLOCATE unless we need to make sure that the
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	947 searching and matching functions should not call alloca. On some
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	948 systems, alloca is implemented in terms of malloc, and if we're
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	949 using the relocating allocator routines, then malloc could cause a
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	950 relocation, which might (if the strings being searched are in the
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	951 ralloc heap) shift the data out from underneath the regexp
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	952 routines.
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	953
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	954 Here's another reason to avoid allocation: Emacs
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	955 processes input from X in a signal handler; processing X input may
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	956 call malloc; if input arrives while a matching routine is calling
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	957 malloc, then we're scrod. But Emacs can't just block input while
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	958 calling matching routines; then we don't notice interrupts when
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	959 they come in. So, Emacs blocks input around all regexp calls
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	960 except the matching calls, which it leaves unprotected, in the
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	961 faith that they will not malloc. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	962
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	963 /* Normally, this is fine. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	964 #define MATCH_MAY_ALLOCATE
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	965
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	966 /* When using GNU C, we are not REALLY using the C alloca, no matter
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	967 what config.h may say. So don't take precautions for it. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	968 #ifdef __GNUC__
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	969 #undef C_ALLOCA
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	970 #endif
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	971
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	972 /* The match routines may not allocate if (1) they would do it with malloc
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	973 and (2) it's not safe for them to use malloc.
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	974 Note that if REL_ALLOC is defined, matching would not use malloc for the
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	975 failure stack, but we would still use it for the register vectors;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	976 so REL_ALLOC should not affect this. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	977 #if (defined (C_ALLOCA) \|\| defined (REGEX_MALLOC)) && defined (emacs)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	978 #undef MATCH_MAY_ALLOCATE
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	979 #endif
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	980
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	981
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	982 /* Failure stack declarations and macros; both re_compile_fastmap and
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	983 re_match_2 use a failure stack. These have to be macros because of
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	984 REGEX_ALLOCATE_STACK. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	985
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	986
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	987 /* Number of failure points for which to initially allocate space
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	988 when matching. If this number is exceeded, we allocate more
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	989 space, so it is not a hard limit. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	990 #ifndef INIT_FAILURE_ALLOC
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	991 #define INIT_FAILURE_ALLOC 5
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	992 #endif
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	993
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	994 /* Roughly the maximum number of failure points on the stack. Would be
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	995 exactly that if always used MAX_FAILURE_SPACE each time we failed.
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	996 This is a variable only so users of regex can assign to it; we never
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	997 change it ourselves. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	998 #if defined (MATCH_MAY_ALLOCATE)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	999 int re_max_failures = 200000;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1000 #else
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1001 int re_max_failures = 2000;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1002 #endif
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1003
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1004 union fail_stack_elt
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1005 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1006 unsigned char *pointer;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1007 int integer;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1008 };
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1009
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1010 typedef union fail_stack_elt fail_stack_elt_t;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1011
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1012 typedef struct
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1013 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1014 fail_stack_elt_t *stack;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1015 unsigned size;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1016 unsigned avail; /* Offset of next open position. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1017 } fail_stack_type;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1018
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1019 #define FAIL_STACK_EMPTY() (fail_stack.avail == 0)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1020 #define FAIL_STACK_PTR_EMPTY() (fail_stack_ptr->avail == 0)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1021 #define FAIL_STACK_FULL() (fail_stack.avail == fail_stack.size)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1022
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1023
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1024 /* Define macros to initialize and free the failure stack.
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1025 Do `return -2' if the alloc fails. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1026
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1027 #ifdef MATCH_MAY_ALLOCATE
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1028 #define INIT_FAIL_STACK() \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1029 do { \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1030 fail_stack.stack = (fail_stack_elt_t *) \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1031 REGEX_ALLOCATE_STACK (INIT_FAILURE_ALLOC * sizeof (fail_stack_elt_t)); \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1032 \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1033 if (fail_stack.stack == NULL) \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1034 return -2; \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1035 \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1036 fail_stack.size = INIT_FAILURE_ALLOC; \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1037 fail_stack.avail = 0; \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1038 } while (0)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1039
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1040 #define RESET_FAIL_STACK() REGEX_FREE_STACK (fail_stack.stack)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1041 #else
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1042 #define INIT_FAIL_STACK() \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1043 do { \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1044 fail_stack.avail = 0; \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1045 } while (0)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1046
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1047 #define RESET_FAIL_STACK()
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1048 #endif
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1049
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1050
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1051 /* Double the size of FAIL_STACK, up to approximately `re_max_failures' items.
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1052
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1053 Return 1 if succeeds, and 0 if either ran out of memory
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1054 allocating space for it or it was already too large.
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1055
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1056 REGEX_REALLOCATE_STACK requires `destination' be declared. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1057
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1058 #define DOUBLE_FAIL_STACK(fail_stack) \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1059 ((fail_stack).size > re_max_failures * MAX_FAILURE_ITEMS \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1060 ? 0 \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1061 : ((fail_stack).stack = (fail_stack_elt_t *) \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1062 REGEX_REALLOCATE_STACK ((fail_stack).stack, \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1063 (fail_stack).size * sizeof (fail_stack_elt_t), \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1064 ((fail_stack).size << 1) * sizeof (fail_stack_elt_t)), \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1065 \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1066 (fail_stack).stack == NULL \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1067 ? 0 \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1068 : ((fail_stack).size <<= 1, \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1069 1)))
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1070
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1071
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1072 /* Push pointer POINTER on FAIL_STACK.
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1073 Return 1 if was able to do so and 0 if ran out of memory allocating
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1074 space to do so. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1075 #define PUSH_PATTERN_OP(POINTER, FAIL_STACK) \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1076 ((FAIL_STACK_FULL () \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1077 && !DOUBLE_FAIL_STACK (FAIL_STACK)) \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1078 ? 0 \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1079 : ((FAIL_STACK).stack[(FAIL_STACK).avail++].pointer = POINTER, \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1080 1))
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1081
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1082 /* Push a pointer value onto the failure stack.
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1083 Assumes the variable `fail_stack'. Probably should only
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1084 be called from within `PUSH_FAILURE_POINT'. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1085 #define PUSH_FAILURE_POINTER(item) \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1086 fail_stack.stack[fail_stack.avail++].pointer = (unsigned char *) (item)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1087
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1088 /* This pushes an integer-valued item onto the failure stack.
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1089 Assumes the variable `fail_stack'. Probably should only
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1090 be called from within `PUSH_FAILURE_POINT'. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1091 #define PUSH_FAILURE_INT(item) \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1092 fail_stack.stack[fail_stack.avail++].integer = (item)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1093
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1094 /* Push a fail_stack_elt_t value onto the failure stack.
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1095 Assumes the variable `fail_stack'. Probably should only
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1096 be called from within `PUSH_FAILURE_POINT'. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1097 #define PUSH_FAILURE_ELT(item) \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1098 fail_stack.stack[fail_stack.avail++] = (item)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1099
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1100 /* These three POP... operations complement the three PUSH... operations.
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1101 All assume that `fail_stack' is nonempty. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1102 #define POP_FAILURE_POINTER() fail_stack.stack[--fail_stack.avail].pointer
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1103 #define POP_FAILURE_INT() fail_stack.stack[--fail_stack.avail].integer
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1104 #define POP_FAILURE_ELT() fail_stack.stack[--fail_stack.avail]
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1105
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1106 /* Used to omit pushing failure point id's when we're not debugging. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1107 #ifdef DEBUG
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1108 #define DEBUG_PUSH PUSH_FAILURE_INT
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1109 #define DEBUG_POP(item_addr) *(item_addr) = POP_FAILURE_INT ()
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1110 #else
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1111 #define DEBUG_PUSH(item)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1112 #define DEBUG_POP(item_addr)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1113 #endif
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1114
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1115
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1116 /* Push the information about the state we will need
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1117 if we ever fail back to it.
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1118
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1119 Requires variables fail_stack, regstart, regend, reg_info, and
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1120 num_regs be declared. DOUBLE_FAIL_STACK requires `destination' be
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1121 declared.
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1122
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1123 Does `return FAILURE_CODE' if runs out of memory. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1124
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1125 #define PUSH_FAILURE_POINT(pattern_place, string_place, failure_code) \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1126 do { \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1127 char *destination; \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1128 /* Must be int, so when we don't save any registers, the arithmetic \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1129 of 0 + -1 isn't done as unsigned. */ \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1130 int this_reg; \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1131 \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1132 DEBUG_STATEMENT (failure_id++); \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1133 DEBUG_STATEMENT (nfailure_points_pushed++); \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1134 DEBUG_PRINT2 ("\nPUSH_FAILURE_POINT #%u:\n", failure_id); \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1135 DEBUG_PRINT2 (" Before push, next avail: %d\n", (fail_stack).avail);\
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1136 DEBUG_PRINT2 (" size: %d\n", (fail_stack).size);\
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1137 \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1138 DEBUG_PRINT2 (" slots needed: %d\n", NUM_FAILURE_ITEMS); \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1139 DEBUG_PRINT2 (" available: %d\n", REMAINING_AVAIL_SLOTS); \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1140 \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1141 /* Ensure we have enough space allocated for what we will push. */ \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1142 while (REMAINING_AVAIL_SLOTS < NUM_FAILURE_ITEMS) \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1143 { \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1144 if (!DOUBLE_FAIL_STACK (fail_stack)) \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1145 return failure_code; \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1146 \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1147 DEBUG_PRINT2 ("\n Doubled stack; size now: %d\n", \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1148 (fail_stack).size); \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1149 DEBUG_PRINT2 (" slots available: %d\n", REMAINING_AVAIL_SLOTS);\
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1150 } \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1151 \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1152 /* Push the info, starting with the registers. */ \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1153 DEBUG_PRINT1 ("\n"); \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1154 \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1155 for (this_reg = lowest_active_reg; this_reg <= highest_active_reg; \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1156 this_reg++) \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1157 { \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1158 DEBUG_PRINT2 (" Pushing reg: %d\n", this_reg); \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1159 DEBUG_STATEMENT (num_regs_pushed++); \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1160 \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1161 DEBUG_PRINT2 (" start: 0x%x\n", regstart[this_reg]); \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1162 PUSH_FAILURE_POINTER (regstart[this_reg]); \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1163 \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1164 DEBUG_PRINT2 (" end: 0x%x\n", regend[this_reg]); \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1165 PUSH_FAILURE_POINTER (regend[this_reg]); \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1166 \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1167 DEBUG_PRINT2 (" info: 0x%x\n ", reg_info[this_reg]); \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1168 DEBUG_PRINT2 (" match_null=%d", \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1169 REG_MATCH_NULL_STRING_P (reg_info[this_reg])); \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1170 DEBUG_PRINT2 (" active=%d", IS_ACTIVE (reg_info[this_reg])); \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1171 DEBUG_PRINT2 (" matched_something=%d", \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1172 MATCHED_SOMETHING (reg_info[this_reg])); \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1173 DEBUG_PRINT2 (" ever_matched=%d", \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1174 EVER_MATCHED_SOMETHING (reg_info[this_reg])); \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1175 DEBUG_PRINT1 ("\n"); \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1176 PUSH_FAILURE_ELT (reg_info[this_reg].word); \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1177 } \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1178 \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1179 DEBUG_PRINT2 (" Pushing low active reg: %d\n", lowest_active_reg);\
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1180 PUSH_FAILURE_INT (lowest_active_reg); \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1181 \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1182 DEBUG_PRINT2 (" Pushing high active reg: %d\n", highest_active_reg);\
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1183 PUSH_FAILURE_INT (highest_active_reg); \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1184 \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1185 DEBUG_PRINT2 (" Pushing pattern 0x%x: ", pattern_place); \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1186 DEBUG_PRINT_COMPILED_PATTERN (bufp, pattern_place, pend); \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1187 PUSH_FAILURE_POINTER (pattern_place); \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1188 \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1189 DEBUG_PRINT2 (" Pushing string 0x%x: `", string_place); \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1190 DEBUG_PRINT_DOUBLE_STRING (string_place, string1, size1, string2, \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1191 size2); \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1192 DEBUG_PRINT1 ("'\n"); \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1193 PUSH_FAILURE_POINTER (string_place); \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1194 \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1195 DEBUG_PRINT2 (" Pushing failure id: %u\n", failure_id); \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1196 DEBUG_PUSH (failure_id); \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1197 } while (0)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1198
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1199 /* This is the number of items that are pushed and popped on the stack
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1200 for each register. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1201 #define NUM_REG_ITEMS 3
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1202
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1203 /* Individual items aside from the registers. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1204 #ifdef DEBUG
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1205 #define NUM_NONREG_ITEMS 5 /* Includes failure point id. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1206 #else
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1207 #define NUM_NONREG_ITEMS 4
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1208 #endif
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1209
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1210 /* We push at most this many items on the stack. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1211 #define MAX_FAILURE_ITEMS ((num_regs - 1) * NUM_REG_ITEMS + NUM_NONREG_ITEMS)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1212
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1213 /* We actually push this many items. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1214 #define NUM_FAILURE_ITEMS \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1215 ((highest_active_reg - lowest_active_reg + 1) * NUM_REG_ITEMS \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1216 + NUM_NONREG_ITEMS)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1217
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1218 /* How many items can still be added to the stack without overflowing it. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1219 #define REMAINING_AVAIL_SLOTS ((fail_stack).size - (fail_stack).avail)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1220
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1221
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1222 /* Pops what PUSH_FAIL_STACK pushes.
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1223
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1224 We restore into the parameters, all of which should be lvalues:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1225 STR -- the saved data position.
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1226 PAT -- the saved pattern position.
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1227 LOW_REG, HIGH_REG -- the highest and lowest active registers.
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1228 REGSTART, REGEND -- arrays of string positions.
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1229 REG_INFO -- array of information about each subexpression.
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1230
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1231 Also assumes the variables `fail_stack' and (if debugging), `bufp',
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1232 `pend', `string1', `size1', `string2', and `size2'. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1233
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1234 #define POP_FAILURE_POINT(str, pat, low_reg, high_reg, regstart, regend, reg_info)\
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1235 { \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1236 DEBUG_STATEMENT (fail_stack_elt_t failure_id;) \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1237 int this_reg; \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1238 const unsigned char *string_temp; \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1239 \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1240 assert (!FAIL_STACK_EMPTY ()); \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1241 \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1242 /* Remove failure points and point to how many regs pushed. */ \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1243 DEBUG_PRINT1 ("POP_FAILURE_POINT:\n"); \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1244 DEBUG_PRINT2 (" Before pop, next avail: %d\n", fail_stack.avail); \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1245 DEBUG_PRINT2 (" size: %d\n", fail_stack.size); \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1246 \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1247 assert (fail_stack.avail >= NUM_NONREG_ITEMS); \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1248 \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1249 DEBUG_POP (&failure_id); \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1250 DEBUG_PRINT2 (" Popping failure id: %u\n", failure_id); \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1251 \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1252 /* If the saved string location is NULL, it came from an \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1253 on_failure_keep_string_jump opcode, and we want to throw away the \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1254 saved NULL, thus retaining our current position in the string. */ \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1255 string_temp = POP_FAILURE_POINTER (); \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1256 if (string_temp != NULL) \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1257 str = (const char *) string_temp; \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1258 \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1259 DEBUG_PRINT2 (" Popping string 0x%x: `", str); \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1260 DEBUG_PRINT_DOUBLE_STRING (str, string1, size1, string2, size2); \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1261 DEBUG_PRINT1 ("'\n"); \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1262 \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1263 pat = (unsigned char *) POP_FAILURE_POINTER (); \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1264 DEBUG_PRINT2 (" Popping pattern 0x%x: ", pat); \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1265 DEBUG_PRINT_COMPILED_PATTERN (bufp, pat, pend); \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1266 \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1267 /* Restore register info. */ \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1268 high_reg = (unsigned) POP_FAILURE_INT (); \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1269 DEBUG_PRINT2 (" Popping high active reg: %d\n", high_reg); \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1270 \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1271 low_reg = (unsigned) POP_FAILURE_INT (); \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1272 DEBUG_PRINT2 (" Popping low active reg: %d\n", low_reg); \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1273 \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1274 for (this_reg = high_reg; this_reg >= low_reg; this_reg--) \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1275 { \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1276 DEBUG_PRINT2 (" Popping reg: %d\n", this_reg); \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1277 \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1278 reg_info[this_reg].word = POP_FAILURE_ELT (); \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1279 DEBUG_PRINT2 (" info: 0x%x\n", reg_info[this_reg]); \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1280 \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1281 regend[this_reg] = (const char *) POP_FAILURE_POINTER (); \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1282 DEBUG_PRINT2 (" end: 0x%x\n", regend[this_reg]); \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1283 \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1284 regstart[this_reg] = (const char *) POP_FAILURE_POINTER (); \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1285 DEBUG_PRINT2 (" start: 0x%x\n", regstart[this_reg]); \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1286 } \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1287 \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1288 set_regs_matched_done = 0; \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1289 DEBUG_STATEMENT (nfailure_points_popped++); \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1290 } /* POP_FAILURE_POINT */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1291
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1292
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1293
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1294 /* Structure for per-register (a.k.a. per-group) information.
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1295 Other register information, such as the
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1296 starting and ending positions (which are addresses), and the list of
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1297 inner groups (which is a bits list) are maintained in separate
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1298 variables.
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1299
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1300 We are making a (strictly speaking) nonportable assumption here: that
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1301 the compiler will pack our bit fields into something that fits into
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1302 the type of `word', i.e., is something that fits into one item on the
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1303 failure stack. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1304
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1305 typedef union
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1306 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1307 fail_stack_elt_t word;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1308 struct
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1309 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1310 /* This field is one if this group can match the empty string,
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1311 zero if not. If not yet determined, `MATCH_NULL_UNSET_VALUE'. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1312 #define MATCH_NULL_UNSET_VALUE 3
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1313 unsigned match_null_string_p : 2;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1314 unsigned is_active : 1;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1315 unsigned matched_something : 1;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1316 unsigned ever_matched_something : 1;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1317 } bits;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1318 } register_info_type;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1319
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1320 #define REG_MATCH_NULL_STRING_P(R) ((R).bits.match_null_string_p)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1321 #define IS_ACTIVE(R) ((R).bits.is_active)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1322 #define MATCHED_SOMETHING(R) ((R).bits.matched_something)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1323 #define EVER_MATCHED_SOMETHING(R) ((R).bits.ever_matched_something)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1324
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1325
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1326 /* Call this when have matched a real character; it sets `matched' flags
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1327 for the subexpressions which we are currently inside. Also records
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1328 that those subexprs have matched. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1329 #define SET_REGS_MATCHED() \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1330 do \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1331 { \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1332 if (!set_regs_matched_done) \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1333 { \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1334 unsigned r; \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1335 set_regs_matched_done = 1; \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1336 for (r = lowest_active_reg; r <= highest_active_reg; r++) \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1337 { \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1338 MATCHED_SOMETHING (reg_info[r]) \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1339 = EVER_MATCHED_SOMETHING (reg_info[r]) \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1340 = 1; \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1341 } \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1342 } \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1343 } \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1344 while (0)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1345
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1346 /* Registers are set to a sentinel when they haven't yet matched. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1347 static char reg_unset_dummy;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1348 #define REG_UNSET_VALUE (&reg_unset_dummy)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1349 #define REG_UNSET(e) ((e) == REG_UNSET_VALUE)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1350
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1351 /* Subroutine declarations and macros for regex_compile. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1352
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1353 static void store_op1 (), store_op2 ();
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1354 static void insert_op1 (), insert_op2 ();
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1355 static boolean at_begline_loc_p (), at_endline_loc_p ();
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1356 static boolean group_in_compile_stack ();
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1357 static reg_errcode_t compile_range ();
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1358
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1359 /* Fetch the next character in the uncompiled pattern---translating it
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1360 if necessary. Also cast from a signed character in the constant
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1361 string passed to us by the user to an unsigned char that we can use
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1362 as an array index (in, e.g., `translate'). */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1363 #define PATFETCH(c) \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1364 do {if (p == pend) return REG_EEND; \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1365 c = (unsigned char) *p++; \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1366 if (translate) c = translate[c]; \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1367 } while (0)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1368
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1369 /* Fetch the next character in the uncompiled pattern, with no
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1370 translation. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1371 #define PATFETCH_RAW(c) \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1372 do {if (p == pend) return REG_EEND; \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1373 c = (unsigned char) *p++; \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1374 } while (0)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1375
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1376 /* Go backwards one character in the pattern. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1377 #define PATUNFETCH p--
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1378
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1379
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1380 /* If `translate' is non-null, return translate[D], else just D. We
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1381 cast the subscript to translate because some data is declared as
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1382 `char *', to avoid warnings when a string constant is passed. But
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1383 when we use a character as a subscript we must make it unsigned. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1384 #define TRANSLATE(d) (translate ? translate[(unsigned char) (d)] : (d))
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1385
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1386
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1387 /* Macros for outputting the compiled pattern into `buffer'. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1388
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1389 /* If the buffer isn't allocated when it comes in, use this. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1390 #define INIT_BUF_SIZE 32
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1391
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1392 /* Make sure we have at least N more bytes of space in buffer. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1393 #define GET_BUFFER_SPACE(n) \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1394 while (b - bufp->buffer + (n) > bufp->allocated) \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1395 EXTEND_BUFFER ()
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1396
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1397 /* Make sure we have one more byte of buffer space and then add C to it. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1398 #define BUF_PUSH(c) \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1399 do { \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1400 GET_BUFFER_SPACE (1); \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1401 *b++ = (unsigned char) (c); \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1402 } while (0)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1403
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1404
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1405 /* Ensure we have two more bytes of buffer space and then append C1 and C2. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1406 #define BUF_PUSH_2(c1, c2) \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1407 do { \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1408 GET_BUFFER_SPACE (2); \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1409 *b++ = (unsigned char) (c1); \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1410 *b++ = (unsigned char) (c2); \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1411 } while (0)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1412
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1413
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1414 /* As with BUF_PUSH_2, except for three bytes. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1415 #define BUF_PUSH_3(c1, c2, c3) \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1416 do { \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1417 GET_BUFFER_SPACE (3); \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1418 *b++ = (unsigned char) (c1); \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1419 *b++ = (unsigned char) (c2); \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1420 *b++ = (unsigned char) (c3); \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1421 } while (0)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1422
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1423
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1424 /* Store a jump with opcode OP at LOC to location TO. We store a
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1425 relative address offset by the three bytes the jump itself occupies. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1426 #define STORE_JUMP(op, loc, to) \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1427 store_op1 (op, loc, (to) - (loc) - 3)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1428
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1429 /* Likewise, for a two-argument jump. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1430 #define STORE_JUMP2(op, loc, to, arg) \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1431 store_op2 (op, loc, (to) - (loc) - 3, arg)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1432
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1433 /* Like `STORE_JUMP', but for inserting. Assume `b' is the buffer end. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1434 #define INSERT_JUMP(op, loc, to) \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1435 insert_op1 (op, loc, (to) - (loc) - 3, b)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1436
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1437 /* Like `STORE_JUMP2', but for inserting. Assume `b' is the buffer end. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1438 #define INSERT_JUMP2(op, loc, to, arg) \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1439 insert_op2 (op, loc, (to) - (loc) - 3, arg, b)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1440
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1441
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1442 /* This is not an arbitrary limit: the arguments which represent offsets
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1443 into the pattern are two bytes long. So if 2^16 bytes turns out to
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1444 be too small, many things would have to change. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1445 #define MAX_BUF_SIZE (1L << 16)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1446
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1447
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1448 /* Extend the buffer by twice its current size via realloc and
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1449 reset the pointers that pointed into the old block to point to the
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1450 correct places in the new one. If extending the buffer results in it
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1451 being larger than MAX_BUF_SIZE, then flag memory exhausted. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1452 #define EXTEND_BUFFER() \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1453 do { \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1454 unsigned char *old_buffer = bufp->buffer; \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1455 if (bufp->allocated == MAX_BUF_SIZE) \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1456 return REG_ESIZE; \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1457 bufp->allocated <<= 1; \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1458 if (bufp->allocated > MAX_BUF_SIZE) \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1459 bufp->allocated = MAX_BUF_SIZE; \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1460 bufp->buffer = (unsigned char *) realloc (bufp->buffer, bufp->allocated);\
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1461 if (bufp->buffer == NULL) \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1462 return REG_ESPACE; \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1463 /* If the buffer moved, move all the pointers into it. */ \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1464 if (old_buffer != bufp->buffer) \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1465 { \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1466 b = (b - old_buffer) + bufp->buffer; \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1467 begalt = (begalt - old_buffer) + bufp->buffer; \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1468 if (fixup_alt_jump) \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1469 fixup_alt_jump = (fixup_alt_jump - old_buffer) + bufp->buffer;\
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1470 if (laststart) \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1471 laststart = (laststart - old_buffer) + bufp->buffer; \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1472 if (pending_exact) \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1473 pending_exact = (pending_exact - old_buffer) + bufp->buffer; \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1474 } \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1475 } while (0)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1476
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1477
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1478 /* Since we have one byte reserved for the register number argument to
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1479 {start,stop}_memory, the maximum number of groups we can report
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1480 things about is what fits in that byte. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1481 #define MAX_REGNUM 255
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1482
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1483 /* But patterns can have more than `MAX_REGNUM' registers. We just
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1484 ignore the excess. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1485 typedef unsigned regnum_t;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1486
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1487
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1488 /* Macros for the compile stack. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1489
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1490 /* Since offsets can go either forwards or backwards, this type needs to
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1491 be able to hold values from -(MAX_BUF_SIZE - 1) to MAX_BUF_SIZE - 1. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1492 typedef int pattern_offset_t;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1493
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1494 typedef struct
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1495 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1496 pattern_offset_t begalt_offset;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1497 pattern_offset_t fixup_alt_jump;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1498 pattern_offset_t inner_group_offset;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1499 pattern_offset_t laststart_offset;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1500 regnum_t regnum;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1501 } compile_stack_elt_t;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1502
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1503
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1504 typedef struct
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1505 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1506 compile_stack_elt_t *stack;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1507 unsigned size;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1508 unsigned avail; /* Offset of next open position. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1509 } compile_stack_type;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1510
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1511
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1512 #define INIT_COMPILE_STACK_SIZE 32
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1513
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1514 #define COMPILE_STACK_EMPTY (compile_stack.avail == 0)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1515 #define COMPILE_STACK_FULL (compile_stack.avail == compile_stack.size)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1516
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1517 /* The next available element. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1518 #define COMPILE_STACK_TOP (compile_stack.stack[compile_stack.avail])
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1519
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1520
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1521 /* Set the bit for character C in a list. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1522 #define SET_LIST_BIT(c) \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1523 (b[((unsigned char) (c)) / BYTEWIDTH] \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1524 \|= 1 << (((unsigned char) c) % BYTEWIDTH))
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1525
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1526
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1527 /* Get the next unsigned number in the uncompiled pattern. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1528 #define GET_UNSIGNED_NUMBER(num) \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1529 { if (p != pend) \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1530 { \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1531 PATFETCH (c); \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1532 while (ISDIGIT (c)) \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1533 { \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1534 if (num < 0) \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1535 num = 0; \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1536 num = num * 10 + c - '0'; \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1537 if (p == pend) \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1538 break; \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1539 PATFETCH (c); \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1540 } \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1541 } \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1542 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1543
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1544 #define CHAR_CLASS_MAX_LENGTH 6 /* Namely, `xdigit'. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1545
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1546 #define IS_CHAR_CLASS(string) \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1547 (STREQ (string, "alpha") \|\| STREQ (string, "upper") \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1548 \|\| STREQ (string, "lower") \|\| STREQ (string, "digit") \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1549 \|\| STREQ (string, "alnum") \|\| STREQ (string, "xdigit") \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1550 \|\| STREQ (string, "space") \|\| STREQ (string, "print") \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1551 \|\| STREQ (string, "punct") \|\| STREQ (string, "graph") \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1552 \|\| STREQ (string, "cntrl") \|\| STREQ (string, "blank"))
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1553
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1554 #ifndef MATCH_MAY_ALLOCATE
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1555
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1556 /* If we cannot allocate large objects within re_match_2_internal,
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1557 we make the fail stack and register vectors global.
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1558 The fail stack, we grow to the maximum size when a regexp
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1559 is compiled.
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1560 The register vectors, we adjust in size each time we
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1561 compile a regexp, according to the number of registers it needs. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1562
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1563 static fail_stack_type fail_stack;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1564
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1565 /* Size with which the following vectors are currently allocated.
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1566 That is so we can make them bigger as needed,
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1567 but never make them smaller. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1568 static int regs_allocated_size;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1569
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1570 static const char regstart, regend;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1571 static const char old_regstart, old_regend;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1572 static const char best_regstart, best_regend;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1573 static register_info_type *reg_info;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1574 static const char **reg_dummy;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1575 static register_info_type *reg_info_dummy;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1576
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1577 /* Make the register vectors big enough for NUM_REGS registers,
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1578 but don't make them smaller. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1579
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1580 static
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1581 regex_grow_registers (num_regs)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1582 int num_regs;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1583 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1584 if (num_regs > regs_allocated_size)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1585 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1586 RETALLOC_IF (regstart, num_regs, const char *);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1587 RETALLOC_IF (regend, num_regs, const char *);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1588 RETALLOC_IF (old_regstart, num_regs, const char *);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1589 RETALLOC_IF (old_regend, num_regs, const char *);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1590 RETALLOC_IF (best_regstart, num_regs, const char *);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1591 RETALLOC_IF (best_regend, num_regs, const char *);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1592 RETALLOC_IF (reg_info, num_regs, register_info_type);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1593 RETALLOC_IF (reg_dummy, num_regs, const char *);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1594 RETALLOC_IF (reg_info_dummy, num_regs, register_info_type);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1595
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1596 regs_allocated_size = num_regs;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1597 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1598 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1599
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1600 #endif /* not MATCH_MAY_ALLOCATE */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1601
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1602 /* `regex_compile' compiles PATTERN (of length SIZE) according to SYNTAX.
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1603 Returns one of error codes defined in `regex.h', or zero for success.
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1604
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1605 Assumes the `allocated' (and perhaps `buffer') and `translate'
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1606 fields are set in BUFP on entry.
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1607
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1608 If it succeeds, results are put in BUFP (if it returns an error, the
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1609 contents of BUFP are undefined):
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1610 `buffer' is the compiled pattern;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1611 `syntax' is set to SYNTAX;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1612 `used' is set to the length of the compiled pattern;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1613 `fastmap_accurate' is zero;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1614 `re_nsub' is the number of subexpressions in PATTERN;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1615 `not_bol' and `not_eol' are zero;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1616
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1617 The `fastmap' and `newline_anchor' fields are neither
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1618 examined nor set. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1619
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1620 /* Return, freeing storage we allocated. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1621 #define FREE_STACK_RETURN(value) \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1622 return (free (compile_stack.stack), value)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1623
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1624 static reg_errcode_t
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1625 regex_compile (pattern, size, syntax, bufp)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1626 const char *pattern;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1627 int size;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1628 reg_syntax_t syntax;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1629 struct re_pattern_buffer *bufp;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1630 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1631 /* We fetch characters from PATTERN here. Even though PATTERN is
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1632 `char *' (i.e., signed), we declare these variables as unsigned, so
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1633 they can be reliably used as array indices. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1634 register unsigned char c, c1;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1635
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1636 /* A random temporary spot in PATTERN. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1637 const char *p1;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1638
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1639 /* Points to the end of the buffer, where we should append. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1640 register unsigned char *b;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1641
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1642 /* Keeps track of unclosed groups. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1643 compile_stack_type compile_stack;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1644
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1645 /* Points to the current (ending) position in the pattern. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1646 const char *p = pattern;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1647 const char *pend = pattern + size;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1648
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1649 /* How to translate the characters in the pattern. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1650 char *translate = bufp->translate;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1651
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1652 /* Address of the count-byte of the most recently inserted `exactn'
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1653 command. This makes it possible to tell if a new exact-match
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1654 character can be added to that command or if the character requires
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1655 a new `exactn' command. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1656 unsigned char *pending_exact = 0;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1657
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1658 /* Address of start of the most recently finished expression.
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1659 This tells, e.g., postfix * where to find the start of its
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1660 operand. Reset at the beginning of groups and alternatives. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1661 unsigned char *laststart = 0;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1662
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1663 /* Address of beginning of regexp, or inside of last group. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1664 unsigned char *begalt;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1665
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1666 /* Place in the uncompiled pattern (i.e., the {) to
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1667 which to go back if the interval is invalid. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1668 const char *beg_interval;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1669
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1670 /* Address of the place where a forward jump should go to the end of
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1671 the containing expression. Each alternative of an `or' -- except the
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1672 last -- ends with a forward jump of this sort. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1673 unsigned char *fixup_alt_jump = 0;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1674
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1675 /* Counts open-groups as they are encountered. Remembered for the
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1676 matching close-group on the compile stack, so the same register
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1677 number is put in the stop_memory as the start_memory. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1678 regnum_t regnum = 0;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1679
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1680 #ifdef DEBUG
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1681 DEBUG_PRINT1 ("\nCompiling pattern: ");
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1682 if (debug)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1683 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1684 unsigned debug_count;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1685
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1686 for (debug_count = 0; debug_count < size; debug_count++)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1687 putchar (pattern[debug_count]);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1688 putchar ('\n');
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1689 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1690 #endif /* DEBUG */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1691
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1692 /* Initialize the compile stack. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1693 compile_stack.stack = TALLOC (INIT_COMPILE_STACK_SIZE, compile_stack_elt_t);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1694 if (compile_stack.stack == NULL)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1695 return REG_ESPACE;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1696
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1697 compile_stack.size = INIT_COMPILE_STACK_SIZE;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1698 compile_stack.avail = 0;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1699
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1700 /* Initialize the pattern buffer. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1701 bufp->syntax = syntax;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1702 bufp->fastmap_accurate = 0;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1703 bufp->not_bol = bufp->not_eol = 0;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1704
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1705 /* Set `used' to zero, so that if we return an error, the pattern
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1706 printer (for debugging) will think there's no pattern. We reset it
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1707 at the end. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1708 bufp->used = 0;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1709
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1710 /* Always count groups, whether or not bufp->no_sub is set. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1711 bufp->re_nsub = 0;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1712
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1713 #if !defined (emacs) && !defined (SYNTAX_TABLE)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1714 /* Initialize the syntax table. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1715 init_syntax_once ();
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1716 #endif
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1717
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1718 if (bufp->allocated == 0)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1719 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1720 if (bufp->buffer)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1721 { /* If zero allocated, but buffer is non-null, try to realloc
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1722 enough space. This loses if buffer's address is bogus, but
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1723 that is the user's responsibility. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1724 RETALLOC (bufp->buffer, INIT_BUF_SIZE, unsigned char);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1725 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1726 else
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1727 { /* Caller did not allocate a buffer. Do it for them. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1728 bufp->buffer = TALLOC (INIT_BUF_SIZE, unsigned char);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1729 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1730 if (!bufp->buffer) FREE_STACK_RETURN (REG_ESPACE);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1731
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1732 bufp->allocated = INIT_BUF_SIZE;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1733 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1734
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1735 begalt = b = bufp->buffer;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1736
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1737 /* Loop through the uncompiled pattern until we're at the end. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1738 while (p != pend)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1739 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1740 PATFETCH (c);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1741
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1742 switch (c)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1743 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1744 case '^':
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1745 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1746 if ( /* If at start of pattern, it's an operator. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1747 p == pattern + 1
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1748 /* If context independent, it's an operator. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1749 \|\| syntax & RE_CONTEXT_INDEP_ANCHORS
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1750 /* Otherwise, depends on what's come before. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1751 \|\| at_begline_loc_p (pattern, p, syntax))
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1752 BUF_PUSH (begline);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1753 else
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1754 goto normal_char;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1755 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1756 break;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1757
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1758
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1759 case '$':
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1760 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1761 if ( /* If at end of pattern, it's an operator. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1762 p == pend
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1763 /* If context independent, it's an operator. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1764 \|\| syntax & RE_CONTEXT_INDEP_ANCHORS
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1765 /* Otherwise, depends on what's next. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1766 \|\| at_endline_loc_p (p, pend, syntax))
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1767 BUF_PUSH (endline);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1768 else
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1769 goto normal_char;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1770 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1771 break;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1772
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1773
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1774 case '+':
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1775 case '?':
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1776 if ((syntax & RE_BK_PLUS_QM)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1777 \|\| (syntax & RE_LIMITED_OPS))
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1778 goto normal_char;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1779 handle_plus:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1780 case '*':
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1781 /* If there is no previous pattern... */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1782 if (!laststart)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1783 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1784 if (syntax & RE_CONTEXT_INVALID_OPS)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1785 FREE_STACK_RETURN (REG_BADRPT);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1786 else if (!(syntax & RE_CONTEXT_INDEP_OPS))
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1787 goto normal_char;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1788 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1789
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1790 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1791 /* Are we optimizing this jump? */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1792 boolean keep_string_p = false;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1793
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1794 /* 1 means zero (many) matches is allowed. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1795 char zero_times_ok = 0, many_times_ok = 0;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1796
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1797 /* If there is a sequence of repetition chars, collapse it
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1798 down to just one (the right one). We can't combine
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1799 interval operators with these because of, e.g., `a{2}*',
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1800 which should only match an even number of `a's. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1801
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1802 for (;;)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1803 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1804 zero_times_ok \|= c != '+';
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1805 many_times_ok \|= c != '?';
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1806
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1807 if (p == pend)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1808 break;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1809
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1810 PATFETCH (c);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1811
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1812 if (c == '*'
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1813 \|\| (!(syntax & RE_BK_PLUS_QM) && (c == '+' \|\| c == '?')))
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1814 ;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1815
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1816 else if (syntax & RE_BK_PLUS_QM && c == '\\')
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1817 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1818 if (p == pend) FREE_STACK_RETURN (REG_EESCAPE);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1819
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1820 PATFETCH (c1);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1821 if (!(c1 == '+' \|\| c1 == '?'))
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1822 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1823 PATUNFETCH;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1824 PATUNFETCH;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1825 break;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1826 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1827
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1828 c = c1;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1829 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1830 else
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1831 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1832 PATUNFETCH;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1833 break;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1834 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1835
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1836 /* If we get here, we found another repeat character. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1837 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1838
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1839 /* Star, etc. applied to an empty pattern is equivalent
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1840 to an empty pattern. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1841 if (!laststart)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1842 break;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1843
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1844 /* Now we know whether or not zero matches is allowed
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1845 and also whether or not two or more matches is allowed. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1846 if (many_times_ok)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1847 { /* More than one repetition is allowed, so put in at the
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1848 end a backward relative jump from `b' to before the next
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1849 jump we're going to put in below (which jumps from
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1850 laststart to after this jump).
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1851
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1852 But if we are at the `' in the exact sequence `.\n',
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1853 insert an unconditional jump backwards to the .,
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1854 instead of the beginning of the loop. This way we only
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1855 push a failure point once, instead of every time
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1856 through the loop. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1857 assert (p - 1 > pattern);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1858
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1859 /* Allocate the space for the jump. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1860 GET_BUFFER_SPACE (3);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1861
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1862 /* We know we are not at the first character of the pattern,
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1863 because laststart was nonzero. And we've already
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1864 incremented `p', by the way, to be the character after
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1865 the `*'. Do we have to do something analogous here
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1866 for null bytes, because of RE_DOT_NOT_NULL? */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1867 if (TRANSLATE (*(p - 2)) == TRANSLATE ('.')
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1868 && zero_times_ok
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1869 && p < pend && TRANSLATE (*p) == TRANSLATE ('\n')
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1870 && !(syntax & RE_DOT_NEWLINE))
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1871 { /* We have .\n. /
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1872 STORE_JUMP (jump, b, laststart);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1873 keep_string_p = true;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1874 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1875 else
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1876 /* Anything else. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1877 STORE_JUMP (maybe_pop_jump, b, laststart - 3);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1878
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1879 /* We've added more stuff to the buffer. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1880 b += 3;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1881 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1882
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1883 /* On failure, jump from laststart to b + 3, which will be the
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1884 end of the buffer after this jump is inserted. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1885 GET_BUFFER_SPACE (3);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1886 INSERT_JUMP (keep_string_p ? on_failure_keep_string_jump
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1887 : on_failure_jump,
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1888 laststart, b + 3);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1889 pending_exact = 0;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1890 b += 3;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1891
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1892 if (!zero_times_ok)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1893 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1894 /* At least one repetition is required, so insert a
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1895 `dummy_failure_jump' before the initial
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1896 `on_failure_jump' instruction of the loop. This
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1897 effects a skip over that instruction the first time
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1898 we hit that loop. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1899 GET_BUFFER_SPACE (3);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1900 INSERT_JUMP (dummy_failure_jump, laststart, laststart + 6);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1901 b += 3;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1902 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1903 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1904 break;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1905
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1906
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1907 case '.':
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1908 laststart = b;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1909 BUF_PUSH (anychar);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1910 break;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1911
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1912
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1913 case '[':
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1914 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1915 boolean had_char_class = false;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1916
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1917 if (p == pend) FREE_STACK_RETURN (REG_EBRACK);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1918
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1919 /* Ensure that we have enough space to push a charset: the
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1920 opcode, the length count, and the bitset; 34 bytes in all. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1921 GET_BUFFER_SPACE (34);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1922
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1923 laststart = b;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1924
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1925 /* We test `*p == '^' twice, instead of using an if
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1926 statement, so we only need one BUF_PUSH. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1927 BUF_PUSH (*p == '^' ? charset_not : charset);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1928 if (*p == '^')
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1929 p++;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1930
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1931 /* Remember the first position in the bracket expression. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1932 p1 = p;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1933
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1934 /* Push the number of bytes in the bitmap. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1935 BUF_PUSH ((1 << BYTEWIDTH) / BYTEWIDTH);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1936
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1937 /* Clear the whole map. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1938 bzero (b, (1 << BYTEWIDTH) / BYTEWIDTH);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1939
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1940 /* charset_not matches newline according to a syntax bit. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1941 if ((re_opcode_t) b[-2] == charset_not
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1942 && (syntax & RE_HAT_LISTS_NOT_NEWLINE))
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1943 SET_LIST_BIT ('\n');
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1944
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1945 /* Read in characters and ranges, setting map bits. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1946 for (;;)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1947 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1948 if (p == pend) FREE_STACK_RETURN (REG_EBRACK);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1949
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1950 PATFETCH (c);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1951
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1952 /* \ might escape characters inside [...] and [^...]. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1953 if ((syntax & RE_BACKSLASH_ESCAPE_IN_LISTS) && c == '\\')
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1954 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1955 if (p == pend) FREE_STACK_RETURN (REG_EESCAPE);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1956
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1957 PATFETCH (c1);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1958 SET_LIST_BIT (c1);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1959 continue;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1960 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1961
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1962 /* Could be the end of the bracket expression. If it's
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1963 not (i.e., when the bracket expression is `[]' so
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1964 far), the ']' character bit gets set way below. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1965 if (c == ']' && p != p1 + 1)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1966 break;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1967
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1968 /* Look ahead to see if it's a range when the last thing
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1969 was a character class. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1970 if (had_char_class && c == '-' && *p != ']')
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1971 FREE_STACK_RETURN (REG_ERANGE);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1972
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1973 /* Look ahead to see if it's a range when the last thing
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1974 was a character: if this is a hyphen not at the
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1975 beginning or the end of a list, then it's the range
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1976 operator. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1977 if (c == '-'
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1978 && !(p - 2 >= pattern && p[-2] == '[')
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1979 && !(p - 3 >= pattern && p[-3] == '[' && p[-2] == '^')
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1980 && *p != ']')
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1981 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1982 reg_errcode_t ret
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1983 = compile_range (&p, pend, translate, syntax, b);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1984 if (ret != REG_NOERROR) FREE_STACK_RETURN (ret);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1985 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1986
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1987 else if (p[0] == '-' && p[1] != ']')
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1988 { /* This handles ranges made up of characters only. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1989 reg_errcode_t ret;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1990
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1991 /* Move past the `-'. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1992 PATFETCH (c1);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1993
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1994 ret = compile_range (&p, pend, translate, syntax, b);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1995 if (ret != REG_NOERROR) FREE_STACK_RETURN (ret);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1996 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1997
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1998 /* See if we're at the beginning of a possible character
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	1999 class. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2000
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2001 else if (syntax & RE_CHAR_CLASSES && c == '[' && *p == ':')
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2002 { /* Leave room for the null. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2003 char str[CHAR_CLASS_MAX_LENGTH + 1];
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2004
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2005 PATFETCH (c);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2006 c1 = 0;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2007
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2008 /* If pattern is `[[:'. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2009 if (p == pend) FREE_STACK_RETURN (REG_EBRACK);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2010
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2011 for (;;)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2012 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2013 PATFETCH (c);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2014 if (c == ':' \|\| c == ']' \|\| p == pend
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2015 \|\| c1 == CHAR_CLASS_MAX_LENGTH)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2016 break;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2017 str[c1++] = c;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2018 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2019 str[c1] = '\0';
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2020
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2021 /* If isn't a word bracketed by `[:' and:`]':
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2022 undo the ending character, the letters, and leave
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2023 the leading `:' and `[' (but set bits for them). */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2024 if (c == ':' && *p == ']')
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2025 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2026 int ch;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2027 boolean is_alnum = STREQ (str, "alnum");
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2028 boolean is_alpha = STREQ (str, "alpha");
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2029 boolean is_blank = STREQ (str, "blank");
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2030 boolean is_cntrl = STREQ (str, "cntrl");
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2031 boolean is_digit = STREQ (str, "digit");
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2032 boolean is_graph = STREQ (str, "graph");
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2033 boolean is_lower = STREQ (str, "lower");
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2034 boolean is_print = STREQ (str, "print");
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2035 boolean is_punct = STREQ (str, "punct");
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2036 boolean is_space = STREQ (str, "space");
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2037 boolean is_upper = STREQ (str, "upper");
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2038 boolean is_xdigit = STREQ (str, "xdigit");
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2039
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2040 if (!IS_CHAR_CLASS (str))
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2041 FREE_STACK_RETURN (REG_ECTYPE);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2042
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2043 /* Throw away the ] at the end of the character
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2044 class. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2045 PATFETCH (c);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2046
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2047 if (p == pend) FREE_STACK_RETURN (REG_EBRACK);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2048
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2049 for (ch = 0; ch < 1 << BYTEWIDTH; ch++)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2050 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2051 /* This was split into 3 if's to
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2052 avoid an arbitrary limit in some compiler. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2053 if ( (is_alnum && ISALNUM (ch))
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2054 \|\| (is_alpha && ISALPHA (ch))
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2055 \|\| (is_blank && ISBLANK (ch))
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2056 \|\| (is_cntrl && ISCNTRL (ch)))
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2057 SET_LIST_BIT (ch);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2058 if ( (is_digit && ISDIGIT (ch))
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2059 \|\| (is_graph && ISGRAPH (ch))
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2060 \|\| (is_lower && ISLOWER (ch))
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2061 \|\| (is_print && ISPRINT (ch)))
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2062 SET_LIST_BIT (ch);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2063 if ( (is_punct && ISPUNCT (ch))
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2064 \|\| (is_space && ISSPACE (ch))
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2065 \|\| (is_upper && ISUPPER (ch))
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2066 \|\| (is_xdigit && ISXDIGIT (ch)))
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2067 SET_LIST_BIT (ch);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2068 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2069 had_char_class = true;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2070 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2071 else
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2072 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2073 c1++;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2074 while (c1--)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2075 PATUNFETCH;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2076 SET_LIST_BIT ('[');
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2077 SET_LIST_BIT (':');
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2078 had_char_class = false;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2079 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2080 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2081 else
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2082 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2083 had_char_class = false;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2084 SET_LIST_BIT (c);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2085 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2086 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2087
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2088 /* Discard any (non)matching list bytes that are all 0 at the
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2089 end of the map. Decrease the map-length byte too. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2090 while ((int) b[-1] > 0 && b[b[-1] - 1] == 0)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2091 b[-1]--;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2092 b += b[-1];
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2093 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2094 break;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2095
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2096
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2097 case '(':
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2098 if (syntax & RE_NO_BK_PARENS)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2099 goto handle_open;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2100 else
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2101 goto normal_char;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2102
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2103
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2104 case ')':
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2105 if (syntax & RE_NO_BK_PARENS)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2106 goto handle_close;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2107 else
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2108 goto normal_char;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2109
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2110
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2111 case '\n':
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2112 if (syntax & RE_NEWLINE_ALT)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2113 goto handle_alt;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2114 else
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2115 goto normal_char;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2116
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2117
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2118 case '\|':
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2119 if (syntax & RE_NO_BK_VBAR)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2120 goto handle_alt;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2121 else
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2122 goto normal_char;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2123
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2124
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2125 case '{':
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2126 if (syntax & RE_INTERVALS && syntax & RE_NO_BK_BRACES)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2127 goto handle_interval;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2128 else
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2129 goto normal_char;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2130
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2131
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2132 case '\\':
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2133 if (p == pend) FREE_STACK_RETURN (REG_EESCAPE);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2134
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2135 /* Do not translate the character after the \, so that we can
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2136 distinguish, e.g., \B from \b, even if we normally would
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2137 translate, e.g., B to b. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2138 PATFETCH_RAW (c);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2139
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2140 switch (c)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2141 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2142 case '(':
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2143 if (syntax & RE_NO_BK_PARENS)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2144 goto normal_backslash;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2145
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2146 handle_open:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2147 bufp->re_nsub++;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2148 regnum++;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2149
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2150 if (COMPILE_STACK_FULL)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2151 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2152 RETALLOC (compile_stack.stack, compile_stack.size << 1,
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2153 compile_stack_elt_t);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2154 if (compile_stack.stack == NULL) return REG_ESPACE;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2155
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2156 compile_stack.size <<= 1;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2157 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2158
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2159 /* These are the values to restore when we hit end of this
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2160 group. They are all relative offsets, so that if the
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2161 whole pattern moves because of realloc, they will still
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2162 be valid. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2163 COMPILE_STACK_TOP.begalt_offset = begalt - bufp->buffer;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2164 COMPILE_STACK_TOP.fixup_alt_jump
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2165 = fixup_alt_jump ? fixup_alt_jump - bufp->buffer + 1 : 0;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2166 COMPILE_STACK_TOP.laststart_offset = b - bufp->buffer;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2167 COMPILE_STACK_TOP.regnum = regnum;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2168
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2169 /* We will eventually replace the 0 with the number of
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2170 groups inner to this one. But do not push a
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2171 start_memory for groups beyond the last one we can
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2172 represent in the compiled pattern. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2173 if (regnum <= MAX_REGNUM)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2174 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2175 COMPILE_STACK_TOP.inner_group_offset = b - bufp->buffer + 2;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2176 BUF_PUSH_3 (start_memory, regnum, 0);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2177 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2178
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2179 compile_stack.avail++;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2180
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2181 fixup_alt_jump = 0;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2182 laststart = 0;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2183 begalt = b;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2184 /* If we've reached MAX_REGNUM groups, then this open
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2185 won't actually generate any code, so we'll have to
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2186 clear pending_exact explicitly. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2187 pending_exact = 0;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2188 break;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2189
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2190
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2191 case ')':
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2192 if (syntax & RE_NO_BK_PARENS) goto normal_backslash;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2193
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2194 if (COMPILE_STACK_EMPTY)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2195 if (syntax & RE_UNMATCHED_RIGHT_PAREN_ORD)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2196 goto normal_backslash;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2197 else
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2198 FREE_STACK_RETURN (REG_ERPAREN);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2199
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2200 handle_close:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2201 if (fixup_alt_jump)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2202 { /* Push a dummy failure point at the end of the
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2203 alternative for a possible future
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2204 `pop_failure_jump' to pop. See comments at
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2205 `push_dummy_failure' in `re_match_2'. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2206 BUF_PUSH (push_dummy_failure);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2207
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2208 /* We allocated space for this jump when we assigned
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2209 to `fixup_alt_jump', in the `handle_alt' case below. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2210 STORE_JUMP (jump_past_alt, fixup_alt_jump, b - 1);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2211 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2212
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2213 /* See similar code for backslashed left paren above. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2214 if (COMPILE_STACK_EMPTY)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2215 if (syntax & RE_UNMATCHED_RIGHT_PAREN_ORD)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2216 goto normal_char;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2217 else
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2218 FREE_STACK_RETURN (REG_ERPAREN);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2219
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2220 /* Since we just checked for an empty stack above, this
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2221 ``can't happen''. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2222 assert (compile_stack.avail != 0);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2223 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2224 /* We don't just want to restore into `regnum', because
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2225 later groups should continue to be numbered higher,
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2226 as in `(ab)c(de)' -- the second group is #2. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2227 regnum_t this_group_regnum;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2228
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2229 compile_stack.avail--;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2230 begalt = bufp->buffer + COMPILE_STACK_TOP.begalt_offset;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2231 fixup_alt_jump
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2232 = COMPILE_STACK_TOP.fixup_alt_jump
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2233 ? bufp->buffer + COMPILE_STACK_TOP.fixup_alt_jump - 1
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2234 : 0;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2235 laststart = bufp->buffer + COMPILE_STACK_TOP.laststart_offset;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2236 this_group_regnum = COMPILE_STACK_TOP.regnum;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2237 /* If we've reached MAX_REGNUM groups, then this open
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2238 won't actually generate any code, so we'll have to
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2239 clear pending_exact explicitly. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2240 pending_exact = 0;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2241
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2242 /* We're at the end of the group, so now we know how many
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2243 groups were inside this one. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2244 if (this_group_regnum <= MAX_REGNUM)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2245 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2246 unsigned char *inner_group_loc
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2247 = bufp->buffer + COMPILE_STACK_TOP.inner_group_offset;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2248
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2249 *inner_group_loc = regnum - this_group_regnum;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2250 BUF_PUSH_3 (stop_memory, this_group_regnum,
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2251 regnum - this_group_regnum);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2252 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2253 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2254 break;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2255
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2256
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2257 case '\|': /* `\\|'. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2258 if (syntax & RE_LIMITED_OPS \|\| syntax & RE_NO_BK_VBAR)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2259 goto normal_backslash;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2260 handle_alt:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2261 if (syntax & RE_LIMITED_OPS)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2262 goto normal_char;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2263
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2264 /* Insert before the previous alternative a jump which
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2265 jumps to this alternative if the former fails. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2266 GET_BUFFER_SPACE (3);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2267 INSERT_JUMP (on_failure_jump, begalt, b + 6);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2268 pending_exact = 0;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2269 b += 3;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2270
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2271 /* The alternative before this one has a jump after it
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2272 which gets executed if it gets matched. Adjust that
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2273 jump so it will jump to this alternative's analogous
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2274 jump (put in below, which in turn will jump to the next
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2275 (if any) alternative's such jump, etc.). The last such
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2276 jump jumps to the correct final destination. A picture:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2277 _____ _____
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2278 \| \| \| \|
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2279 \| v \| v
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2280 a \| b \| c
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2281
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2282 If we are at `b', then fixup_alt_jump right now points to a
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2283 three-byte space after `a'. We'll put in the jump, set
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2284 fixup_alt_jump to right after `b', and leave behind three
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2285 bytes which we'll fill in when we get to after `c'. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2286
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2287 if (fixup_alt_jump)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2288 STORE_JUMP (jump_past_alt, fixup_alt_jump, b);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2289
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2290 /* Mark and leave space for a jump after this alternative,
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2291 to be filled in later either by next alternative or
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2292 when know we're at the end of a series of alternatives. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2293 fixup_alt_jump = b;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2294 GET_BUFFER_SPACE (3);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2295 b += 3;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2296
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2297 laststart = 0;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2298 begalt = b;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2299 break;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2300
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2301
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2302 case '{':
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2303 /* If \{ is a literal. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2304 if (!(syntax & RE_INTERVALS)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2305 /* If we're at `\{' and it's not the open-interval
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2306 operator. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2307 \|\| ((syntax & RE_INTERVALS) && (syntax & RE_NO_BK_BRACES))
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2308 \|\| (p - 2 == pattern && p == pend))
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2309 goto normal_backslash;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2310
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2311 handle_interval:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2312 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2313 /* If got here, then the syntax allows intervals. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2314
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2315 /* At least (most) this many matches must be made. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2316 int lower_bound = -1, upper_bound = -1;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2317
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2318 beg_interval = p - 1;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2319
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2320 if (p == pend)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2321 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2322 if (syntax & RE_NO_BK_BRACES)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2323 goto unfetch_interval;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2324 else
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2325 FREE_STACK_RETURN (REG_EBRACE);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2326 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2327
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2328 GET_UNSIGNED_NUMBER (lower_bound);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2329
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2330 if (c == ',')
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2331 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2332 GET_UNSIGNED_NUMBER (upper_bound);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2333 if (upper_bound < 0) upper_bound = RE_DUP_MAX;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2334 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2335 else
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2336 /* Interval such as `{1}' => match exactly once. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2337 upper_bound = lower_bound;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2338
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2339 if (lower_bound < 0 \|\| upper_bound > RE_DUP_MAX
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2340 \|\| lower_bound > upper_bound)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2341 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2342 if (syntax & RE_NO_BK_BRACES)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2343 goto unfetch_interval;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2344 else
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2345 FREE_STACK_RETURN (REG_BADBR);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2346 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2347
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2348 if (!(syntax & RE_NO_BK_BRACES))
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2349 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2350 if (c != '\\') FREE_STACK_RETURN (REG_EBRACE);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2351
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2352 PATFETCH (c);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2353 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2354
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2355 if (c != '}')
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2356 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2357 if (syntax & RE_NO_BK_BRACES)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2358 goto unfetch_interval;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2359 else
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2360 FREE_STACK_RETURN (REG_BADBR);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2361 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2362
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2363 /* We just parsed a valid interval. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2364
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2365 /* If it's invalid to have no preceding re. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2366 if (!laststart)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2367 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2368 if (syntax & RE_CONTEXT_INVALID_OPS)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2369 FREE_STACK_RETURN (REG_BADRPT);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2370 else if (syntax & RE_CONTEXT_INDEP_OPS)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2371 laststart = b;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2372 else
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2373 goto unfetch_interval;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2374 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2375
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2376 /* If the upper bound is zero, don't want to succeed at
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2377 all; jump from `laststart' to `b + 3', which will be
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2378 the end of the buffer after we insert the jump. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2379 if (upper_bound == 0)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2380 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2381 GET_BUFFER_SPACE (3);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2382 INSERT_JUMP (jump, laststart, b + 3);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2383 b += 3;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2384 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2385
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2386 /* Otherwise, we have a nontrivial interval. When
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2387 we're all done, the pattern will look like:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2388 set_number_at <jump count> <upper bound>
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2389 set_number_at <succeed_n count> <lower bound>
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2390 succeed_n <after jump addr> <succeed_n count>
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2391 <body of loop>
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2392 jump_n <succeed_n addr> <jump count>
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2393 (The upper bound and `jump_n' are omitted if
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2394 `upper_bound' is 1, though.) */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2395 else
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2396 { /* If the upper bound is > 1, we need to insert
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2397 more at the end of the loop. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2398 unsigned nbytes = 10 + (upper_bound > 1) * 10;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2399
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2400 GET_BUFFER_SPACE (nbytes);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2401
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2402 /* Initialize lower bound of the `succeed_n', even
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2403 though it will be set during matching by its
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2404 attendant `set_number_at' (inserted next),
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2405 because `re_compile_fastmap' needs to know.
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2406 Jump to the `jump_n' we might insert below. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2407 INSERT_JUMP2 (succeed_n, laststart,
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2408 b + 5 + (upper_bound > 1) * 5,
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2409 lower_bound);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2410 b += 5;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2411
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2412 /* Code to initialize the lower bound. Insert
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2413 before the `succeed_n'. The `5' is the last two
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2414 bytes of this `set_number_at', plus 3 bytes of
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2415 the following `succeed_n'. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2416 insert_op2 (set_number_at, laststart, 5, lower_bound, b);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2417 b += 5;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2418
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2419 if (upper_bound > 1)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2420 { /* More than one repetition is allowed, so
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2421 append a backward jump to the `succeed_n'
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2422 that starts this interval.
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2423
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2424 When we've reached this during matching,
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2425 we'll have matched the interval once, so
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2426 jump back only `upper_bound - 1' times. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2427 STORE_JUMP2 (jump_n, b, laststart + 5,
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2428 upper_bound - 1);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2429 b += 5;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2430
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2431 /* The location we want to set is the second
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2432 parameter of the `jump_n'; that is `b-2' as
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2433 an absolute address. `laststart' will be
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2434 the `set_number_at' we're about to insert;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2435 `laststart+3' the number to set, the source
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2436 for the relative address. But we are
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2437 inserting into the middle of the pattern --
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2438 so everything is getting moved up by 5.
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2439 Conclusion: (b - 2) - (laststart + 3) + 5,
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2440 i.e., b - laststart.
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2441
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2442 We insert this at the beginning of the loop
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2443 so that if we fail during matching, we'll
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2444 reinitialize the bounds. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2445 insert_op2 (set_number_at, laststart, b - laststart,
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2446 upper_bound - 1, b);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2447 b += 5;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2448 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2449 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2450 pending_exact = 0;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2451 beg_interval = NULL;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2452 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2453 break;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2454
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2455 unfetch_interval:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2456 /* If an invalid interval, match the characters as literals. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2457 assert (beg_interval);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2458 p = beg_interval;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2459 beg_interval = NULL;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2460
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2461 /* normal_char and normal_backslash need `c'. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2462 PATFETCH (c);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2463
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2464 if (!(syntax & RE_NO_BK_BRACES))
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2465 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2466 if (p > pattern && p[-1] == '\\')
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2467 goto normal_backslash;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2468 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2469 goto normal_char;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2470
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2471 #ifdef emacs
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2472 /* There is no way to specify the before_dot and after_dot
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2473 operators. rms says this is ok. --karl */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2474 case '=':
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2475 BUF_PUSH (at_dot);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2476 break;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2477
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2478 case 's':
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2479 laststart = b;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2480 PATFETCH (c);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2481 BUF_PUSH_2 (syntaxspec, syntax_spec_code[c]);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2482 break;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2483
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2484 case 'S':
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2485 laststart = b;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2486 PATFETCH (c);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2487 BUF_PUSH_2 (notsyntaxspec, syntax_spec_code[c]);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2488 break;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2489 #endif /* emacs */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2490
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2491
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2492 case 'w':
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2493 laststart = b;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2494 BUF_PUSH (wordchar);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2495 break;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2496
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2497
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2498 case 'W':
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2499 laststart = b;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2500 BUF_PUSH (notwordchar);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2501 break;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2502
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2503
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2504 case '<':
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2505 BUF_PUSH (wordbeg);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2506 break;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2507
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2508 case '>':
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2509 BUF_PUSH (wordend);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2510 break;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2511
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2512 case 'b':
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2513 BUF_PUSH (wordbound);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2514 break;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2515
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2516 case 'B':
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2517 BUF_PUSH (notwordbound);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2518 break;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2519
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2520 case '`':
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2521 BUF_PUSH (begbuf);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2522 break;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2523
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2524 case '\'':
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2525 BUF_PUSH (endbuf);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2526 break;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2527
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2528 case '1': case '2': case '3': case '4': case '5':
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2529 case '6': case '7': case '8': case '9':
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2530 if (syntax & RE_NO_BK_REFS)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2531 goto normal_char;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2532
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2533 c1 = c - '0';
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2534
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2535 if (c1 > regnum)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2536 FREE_STACK_RETURN (REG_ESUBREG);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2537
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2538 /* Can't back reference to a subexpression if inside of it. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2539 if (group_in_compile_stack (compile_stack, c1))
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2540 goto normal_char;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2541
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2542 laststart = b;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2543 BUF_PUSH_2 (duplicate, c1);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2544 break;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2545
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2546
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2547 case '+':
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2548 case '?':
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2549 if (syntax & RE_BK_PLUS_QM)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2550 goto handle_plus;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2551 else
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2552 goto normal_backslash;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2553
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2554 default:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2555 normal_backslash:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2556 /* You might think it would be useful for \ to mean
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2557 not to translate; but if we don't translate it
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2558 it will never match anything. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2559 c = TRANSLATE (c);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2560 goto normal_char;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2561 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2562 break;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2563
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2564
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2565 default:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2566 /* Expects the character in `c'. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2567 normal_char:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2568 /* If no exactn currently being built. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2569 if (!pending_exact
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2570
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2571 /* If last exactn not at current position. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2572 \|\| pending_exact + *pending_exact + 1 != b
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2573
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2574 /* We have only one byte following the exactn for the count. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2575 \|\| *pending_exact == (1 << BYTEWIDTH) - 1
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2576
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2577 /* If followed by a repetition operator. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2578 \|\| p == '' \|\| *p == '^'
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2579 \|\| ((syntax & RE_BK_PLUS_QM)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2580 ? *p == '\\' && (p[1] == '+' \|\| p[1] == '?')
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2581 : (p == '+' \|\| p == '?'))
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2582 \|\| ((syntax & RE_INTERVALS)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2583 && ((syntax & RE_NO_BK_BRACES)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2584 ? *p == '{'
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2585 : (p[0] == '\\' && p[1] == '{'))))
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2586 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2587 /* Start building a new exactn. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2588
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2589 laststart = b;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2590
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2591 BUF_PUSH_2 (exactn, 0);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2592 pending_exact = b - 1;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2593 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2594
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2595 BUF_PUSH (c);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2596 (*pending_exact)++;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2597 break;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2598 } /* switch (c) */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2599 } /* while p != pend */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2600
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2601
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2602 /* Through the pattern now. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2603
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2604 if (fixup_alt_jump)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2605 STORE_JUMP (jump_past_alt, fixup_alt_jump, b);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2606
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2607 if (!COMPILE_STACK_EMPTY)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2608 FREE_STACK_RETURN (REG_EPAREN);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2609
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2610 /* If we don't want backtracking, force success
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2611 the first time we reach the end of the compiled pattern. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2612 if (syntax & RE_NO_POSIX_BACKTRACKING)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2613 BUF_PUSH (succeed);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2614
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2615 free (compile_stack.stack);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2616
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2617 /* We have succeeded; set the length of the buffer. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2618 bufp->used = b - bufp->buffer;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2619
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2620 #ifdef DEBUG
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2621 if (debug)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2622 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2623 DEBUG_PRINT1 ("\nCompiled pattern: \n");
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2624 print_compiled_pattern (bufp);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2625 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2626 #endif /* DEBUG */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2627
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2628 #ifndef MATCH_MAY_ALLOCATE
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2629 /* Initialize the failure stack to the largest possible stack. This
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2630 isn't necessary unless we're trying to avoid calling alloca in
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2631 the search and match routines. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2632 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2633 int num_regs = bufp->re_nsub + 1;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2634
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2635 /* Since DOUBLE_FAIL_STACK refuses to double only if the current size
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2636 is strictly greater than re_max_failures, the largest possible stack
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2637 is 2 * re_max_failures failure points. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2638 if (fail_stack.size < (2 * re_max_failures * MAX_FAILURE_ITEMS))
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2639 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2640 fail_stack.size = (2 * re_max_failures * MAX_FAILURE_ITEMS);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2641
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2642 #ifdef emacs
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2643 if (! fail_stack.stack)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2644 fail_stack.stack
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2645 = (fail_stack_elt_t *) xmalloc (fail_stack.size
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2646 * sizeof (fail_stack_elt_t));
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2647 else
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2648 fail_stack.stack
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2649 = (fail_stack_elt_t *) xrealloc (fail_stack.stack,
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2650 (fail_stack.size
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2651 * sizeof (fail_stack_elt_t)));
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2652 #else /* not emacs */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2653 if (! fail_stack.stack)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2654 fail_stack.stack
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2655 = (fail_stack_elt_t *) malloc (fail_stack.size
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2656 * sizeof (fail_stack_elt_t));
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2657 else
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2658 fail_stack.stack
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2659 = (fail_stack_elt_t *) realloc (fail_stack.stack,
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2660 (fail_stack.size
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2661 * sizeof (fail_stack_elt_t)));
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2662 #endif /* not emacs */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2663 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2664
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2665 regex_grow_registers (num_regs);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2666 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2667 #endif /* not MATCH_MAY_ALLOCATE */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2668
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2669 return REG_NOERROR;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2670 } /* regex_compile */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2671
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2672 /* Subroutines for `regex_compile'. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2673
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2674 /* Store OP at LOC followed by two-byte integer parameter ARG. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2675
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2676 static void
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2677 store_op1 (op, loc, arg)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2678 re_opcode_t op;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2679 unsigned char *loc;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2680 int arg;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2681 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2682 *loc = (unsigned char) op;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2683 STORE_NUMBER (loc + 1, arg);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2684 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2685
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2686
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2687 /* Like `store_op1', but for two two-byte parameters ARG1 and ARG2. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2688
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2689 static void
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2690 store_op2 (op, loc, arg1, arg2)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2691 re_opcode_t op;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2692 unsigned char *loc;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2693 int arg1, arg2;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2694 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2695 *loc = (unsigned char) op;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2696 STORE_NUMBER (loc + 1, arg1);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2697 STORE_NUMBER (loc + 3, arg2);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2698 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2699
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2700
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2701 /* Copy the bytes from LOC to END to open up three bytes of space at LOC
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2702 for OP followed by two-byte integer parameter ARG. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2703
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2704 static void
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2705 insert_op1 (op, loc, arg, end)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2706 re_opcode_t op;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2707 unsigned char *loc;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2708 int arg;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2709 unsigned char *end;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2710 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2711 register unsigned char *pfrom = end;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2712 register unsigned char *pto = end + 3;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2713
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2714 while (pfrom != loc)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2715 --pto = --pfrom;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2716
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2717 store_op1 (op, loc, arg);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2718 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2719
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2720
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2721 /* Like `insert_op1', but for two two-byte parameters ARG1 and ARG2. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2722
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2723 static void
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2724 insert_op2 (op, loc, arg1, arg2, end)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2725 re_opcode_t op;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2726 unsigned char *loc;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2727 int arg1, arg2;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2728 unsigned char *end;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2729 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2730 register unsigned char *pfrom = end;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2731 register unsigned char *pto = end + 5;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2732
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2733 while (pfrom != loc)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2734 --pto = --pfrom;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2735
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2736 store_op2 (op, loc, arg1, arg2);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2737 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2738
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2739
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2740 /* P points to just after a ^ in PATTERN. Return true if that ^ comes
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2741 after an alternative or a begin-subexpression. We assume there is at
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2742 least one character before the ^. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2743
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2744 static boolean
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2745 at_begline_loc_p (pattern, p, syntax)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2746 const char pattern, p;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2747 reg_syntax_t syntax;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2748 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2749 const char *prev = p - 2;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2750 boolean prev_prev_backslash = prev > pattern && prev[-1] == '\\';
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2751
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2752 return
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2753 /* After a subexpression? */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2754 (*prev == '(' && (syntax & RE_NO_BK_PARENS \|\| prev_prev_backslash))
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2755 /* After an alternative? */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2756 \|\| (*prev == '\|' && (syntax & RE_NO_BK_VBAR \|\| prev_prev_backslash));
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2757 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2758
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2759
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2760 /* The dual of at_begline_loc_p. This one is for $. We assume there is
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2761 at least one character after the $, i.e., `P < PEND'. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2762
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2763 static boolean
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2764 at_endline_loc_p (p, pend, syntax)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2765 const char p, pend;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2766 int syntax;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2767 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2768 const char *next = p;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2769 boolean next_backslash = *next == '\\';
449 c29f67a3f852 (at_endline_loc_p): Use 0, not NULL, in ?: for next_next. Karl Heuer <kwzh@gnu.org> parents: 447 diff changeset	2770 const char *next_next = p + 1 < pend ? p + 1 : 0;
441 403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2771
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2772 return
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2773 /* Before a subexpression? */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2774 (syntax & RE_NO_BK_PARENS ? *next == ')'
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2775 : next_backslash && next_next && *next_next == ')')
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2776 /* Before an alternative? */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2777 \|\| (syntax & RE_NO_BK_VBAR ? *next == '\|'
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2778 : next_backslash && next_next && *next_next == '\|');
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2779 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2780
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2781
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2782 /* Returns true if REGNUM is in one of COMPILE_STACK's elements and
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2783 false if it's not. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2784
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2785 static boolean
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2786 group_in_compile_stack (compile_stack, regnum)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2787 compile_stack_type compile_stack;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2788 regnum_t regnum;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2789 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2790 int this_element;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2791
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2792 for (this_element = compile_stack.avail - 1;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2793 this_element >= 0;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2794 this_element--)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2795 if (compile_stack.stack[this_element].regnum == regnum)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2796 return true;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2797
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2798 return false;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2799 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2800
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2801
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2802 /* Read the ending character of a range (in a bracket expression) from the
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2803 uncompiled pattern *P_PTR (which ends at PEND). We assume the
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2804 starting character is in `P[-2]'. (`P[-1]' is the character `-'.)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2805 Then we set the translation of all bits between the starting and
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2806 ending characters (inclusive) in the compiled pattern B.
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2807
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2808 Return an error code.
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2809
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2810 We use these short variable names so we can use the same macros as
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2811 `regex_compile' itself. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2812
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2813 static reg_errcode_t
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2814 compile_range (p_ptr, pend, translate, syntax, b)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2815 const char *p_ptr, pend;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2816 char *translate;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2817 reg_syntax_t syntax;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2818 unsigned char *b;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2819 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2820 unsigned this_char;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2821
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2822 const char p = p_ptr;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2823 int range_start, range_end;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2824
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2825 if (p == pend)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2826 return REG_ERANGE;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2827
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2828 /* Even though the pattern is a signed `char *', we need to fetch
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2829 with unsigned char *'s; if the high bit of the pattern character
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2830 is set, the range endpoints will be negative if we fetch using a
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2831 signed char *.
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2832
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2833 We also want to fetch the endpoints without translating them; the
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2834 appropriate translation is done in the bit-setting loop below. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2835 /* The SVR4 compiler on the 3B2 had trouble with unsigned const char . /
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2836 range_start = ((const unsigned char *) p)[-2];
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2837 range_end = ((const unsigned char *) p)[0];
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2838
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2839 /* Have to increment the pointer into the pattern string, so the
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2840 caller isn't still at the ending character. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2841 (*p_ptr)++;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2842
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2843 /* If the start is after the end, the range is empty. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2844 if (range_start > range_end)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2845 return syntax & RE_NO_EMPTY_RANGES ? REG_ERANGE : REG_NOERROR;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2846
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2847 /* Here we see why `this_char' has to be larger than an `unsigned
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2848 char' -- the range is inclusive, so if `range_end' == 0xff
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2849 (assuming 8-bit characters), we would otherwise go into an infinite
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2850 loop, since all characters <= 0xff. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2851 for (this_char = range_start; this_char <= range_end; this_char++)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2852 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2853 SET_LIST_BIT (TRANSLATE (this_char));
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2854 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2855
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2856 return REG_NOERROR;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2857 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2858
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2859 /* re_compile_fastmap computes a ``fastmap'' for the compiled pattern in
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2860 BUFP. A fastmap records which of the (1 << BYTEWIDTH) possible
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2861 characters can start a string that matches the pattern. This fastmap
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2862 is used by re_search to skip quickly over impossible starting points.
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2863
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2864 The caller must supply the address of a (1 << BYTEWIDTH)-byte data
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2865 area as BUFP->fastmap.
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2866
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2867 We set the `fastmap', `fastmap_accurate', and `can_be_null' fields in
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2868 the pattern buffer.
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2869
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2870 Returns 0 if we succeed, -2 if an internal error. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2871
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2872 int
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2873 re_compile_fastmap (bufp)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2874 struct re_pattern_buffer *bufp;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2875 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2876 int j, k;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2877 #ifdef MATCH_MAY_ALLOCATE
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2878 fail_stack_type fail_stack;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2879 #endif
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2880 #ifndef REGEX_MALLOC
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2881 char *destination;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2882 #endif
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2883 /* We don't push any register information onto the failure stack. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2884 unsigned num_regs = 0;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2885
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2886 register char *fastmap = bufp->fastmap;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2887 unsigned char *pattern = bufp->buffer;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2888 unsigned long size = bufp->used;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2889 unsigned char *p = pattern;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2890 register unsigned char *pend = pattern + size;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2891
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2892 /* This holds the pointer to the failure stack, when
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2893 it is allocated relocatably. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2894 fail_stack_elt_t *failure_stack_ptr;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2895
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2896 /* Assume that each path through the pattern can be null until
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2897 proven otherwise. We set this false at the bottom of switch
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2898 statement, to which we get only if a particular path doesn't
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2899 match the empty string. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2900 boolean path_can_be_null = true;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2901
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2902 /* We aren't doing a `succeed_n' to begin with. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2903 boolean succeed_n_p = false;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2904
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2905 assert (fastmap != NULL && p != NULL);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2906
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2907 INIT_FAIL_STACK ();
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2908 bzero (fastmap, 1 << BYTEWIDTH); /* Assume nothing's valid. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2909 bufp->fastmap_accurate = 1; /* It will be when we're done. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2910 bufp->can_be_null = 0;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2911
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2912 while (1)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2913 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2914 if (p == pend \|\| *p == succeed)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2915 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2916 /* We have reached the (effective) end of pattern. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2917 if (!FAIL_STACK_EMPTY ())
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2918 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2919 bufp->can_be_null \|= path_can_be_null;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2920
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2921 /* Reset for next path. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2922 path_can_be_null = true;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2923
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2924 p = fail_stack.stack[--fail_stack.avail].pointer;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2925
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2926 continue;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2927 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2928 else
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2929 break;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2930 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2931
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2932 /* We should never be about to go beyond the end of the pattern. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2933 assert (p < pend);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2934
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2935 switch (SWITCH_ENUM_CAST ((re_opcode_t) *p++))
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2936 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2937
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2938 /* I guess the idea here is to simply not bother with a fastmap
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2939 if a backreference is used, since it's too hard to figure out
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2940 the fastmap for the corresponding group. Setting
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2941 `can_be_null' stops `re_search_2' from using the fastmap, so
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2942 that is all we do. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2943 case duplicate:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2944 bufp->can_be_null = 1;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2945 goto done;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2946
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2947
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2948 /* Following are the cases which match a character. These end
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2949 with `break'. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2950
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2951 case exactn:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2952 fastmap[p[1]] = 1;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2953 break;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2954
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2955
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2956 case charset:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2957 for (j = p++ BYTEWIDTH - 1; j >= 0; j--)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2958 if (p[j / BYTEWIDTH] & (1 << (j % BYTEWIDTH)))
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2959 fastmap[j] = 1;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2960 break;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2961
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2962
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2963 case charset_not:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2964 /* Chars beyond end of map must be allowed. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2965 for (j = p BYTEWIDTH; j < (1 << BYTEWIDTH); j++)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2966 fastmap[j] = 1;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2967
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2968 for (j = p++ BYTEWIDTH - 1; j >= 0; j--)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2969 if (!(p[j / BYTEWIDTH] & (1 << (j % BYTEWIDTH))))
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2970 fastmap[j] = 1;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2971 break;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2972
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2973
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2974 case wordchar:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2975 for (j = 0; j < (1 << BYTEWIDTH); j++)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2976 if (SYNTAX (j) == Sword)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2977 fastmap[j] = 1;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2978 break;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2979
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2980
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2981 case notwordchar:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2982 for (j = 0; j < (1 << BYTEWIDTH); j++)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2983 if (SYNTAX (j) != Sword)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2984 fastmap[j] = 1;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2985 break;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2986
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2987
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2988 case anychar:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2989 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2990 int fastmap_newline = fastmap['\n'];
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2991
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2992 /* `.' matches anything ... */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2993 for (j = 0; j < (1 << BYTEWIDTH); j++)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2994 fastmap[j] = 1;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2995
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2996 /* ... except perhaps newline. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2997 if (!(bufp->syntax & RE_DOT_NEWLINE))
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2998 fastmap['\n'] = fastmap_newline;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	2999
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3000 /* Return if we have already set `can_be_null'; if we have,
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3001 then the fastmap is irrelevant. Something's wrong here. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3002 else if (bufp->can_be_null)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3003 goto done;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3004
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3005 /* Otherwise, have to check alternative paths. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3006 break;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3007 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3008
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3009 #ifdef emacs
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3010 case syntaxspec:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3011 k = *p++;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3012 for (j = 0; j < (1 << BYTEWIDTH); j++)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3013 if (SYNTAX (j) == (enum syntaxcode) k)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3014 fastmap[j] = 1;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3015 break;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3016
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3017
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3018 case notsyntaxspec:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3019 k = *p++;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3020 for (j = 0; j < (1 << BYTEWIDTH); j++)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3021 if (SYNTAX (j) != (enum syntaxcode) k)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3022 fastmap[j] = 1;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3023 break;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3024
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3025
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3026 /* All cases after this match the empty string. These end with
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3027 `continue'. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3028
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3029
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3030 case before_dot:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3031 case at_dot:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3032 case after_dot:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3033 continue;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3034 #endif /* not emacs */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3035
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3036
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3037 case no_op:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3038 case begline:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3039 case endline:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3040 case begbuf:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3041 case endbuf:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3042 case wordbound:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3043 case notwordbound:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3044 case wordbeg:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3045 case wordend:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3046 case push_dummy_failure:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3047 continue;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3048
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3049
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3050 case jump_n:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3051 case pop_failure_jump:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3052 case maybe_pop_jump:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3053 case jump:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3054 case jump_past_alt:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3055 case dummy_failure_jump:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3056 EXTRACT_NUMBER_AND_INCR (j, p);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3057 p += j;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3058 if (j > 0)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3059 continue;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3060
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3061 /* Jump backward implies we just went through the body of a
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3062 loop and matched nothing. Opcode jumped to should be
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3063 `on_failure_jump' or `succeed_n'. Just treat it like an
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3064 ordinary jump. For a * loop, it has pushed its failure
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3065 point already; if so, discard that as redundant. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3066 if ((re_opcode_t) *p != on_failure_jump
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3067 && (re_opcode_t) *p != succeed_n)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3068 continue;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3069
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3070 p++;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3071 EXTRACT_NUMBER_AND_INCR (j, p);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3072 p += j;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3073
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3074 /* If what's on the stack is where we are now, pop it. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3075 if (!FAIL_STACK_EMPTY ()
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3076 && fail_stack.stack[fail_stack.avail - 1].pointer == p)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3077 fail_stack.avail--;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3078
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3079 continue;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3080
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3081
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3082 case on_failure_jump:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3083 case on_failure_keep_string_jump:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3084 handle_on_failure_jump:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3085 EXTRACT_NUMBER_AND_INCR (j, p);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3086
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3087 /* For some patterns, e.g., `(a?)?', `p+j' here points to the
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3088 end of the pattern. We don't want to push such a point,
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3089 since when we restore it above, entering the switch will
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3090 increment `p' past the end of the pattern. We don't need
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3091 to push such a point since we obviously won't find any more
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3092 fastmap entries beyond `pend'. Such a pattern can match
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3093 the null string, though. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3094 if (p + j < pend)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3095 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3096 if (!PUSH_PATTERN_OP (p + j, fail_stack))
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3097 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3098 RESET_FAIL_STACK ();
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3099 return -2;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3100 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3101 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3102 else
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3103 bufp->can_be_null = 1;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3104
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3105 if (succeed_n_p)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3106 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3107 EXTRACT_NUMBER_AND_INCR (k, p); /* Skip the n. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3108 succeed_n_p = false;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3109 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3110
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3111 continue;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3112
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3113
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3114 case succeed_n:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3115 /* Get to the number of times to succeed. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3116 p += 2;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3117
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3118 /* Increment p past the n for when k != 0. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3119 EXTRACT_NUMBER_AND_INCR (k, p);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3120 if (k == 0)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3121 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3122 p -= 4;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3123 succeed_n_p = true; /* Spaghetti code alert. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3124 goto handle_on_failure_jump;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3125 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3126 continue;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3127
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3128
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3129 case set_number_at:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3130 p += 4;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3131 continue;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3132
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3133
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3134 case start_memory:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3135 case stop_memory:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3136 p += 2;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3137 continue;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3138
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3139
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3140 default:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3141 abort (); /* We have listed all the cases. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3142 } /* switch p++ /
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3143
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3144 /* Getting here means we have found the possible starting
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3145 characters for one path of the pattern -- and that the empty
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3146 string does not match. We need not follow this path further.
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3147 Instead, look at the next alternative (remembered on the
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3148 stack), or quit if no more. The test at the top of the loop
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3149 does these things. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3150 path_can_be_null = false;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3151 p = pend;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3152 } /* while p */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3153
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3154 /* Set `can_be_null' for the last path (also the first path, if the
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3155 pattern is empty). */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3156 bufp->can_be_null \|= path_can_be_null;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3157
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3158 done:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3159 RESET_FAIL_STACK ();
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3160 return 0;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3161 } /* re_compile_fastmap */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3162
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3163 /* Set REGS to hold NUM_REGS registers, storing them in STARTS and
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3164 ENDS. Subsequent matches using PATTERN_BUFFER and REGS will use
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3165 this memory for recording register information. STARTS and ENDS
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3166 must be allocated using the malloc library routine, and must each
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3167 be at least NUM_REGS * sizeof (regoff_t) bytes long.
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3168
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3169 If NUM_REGS == 0, then subsequent matches should allocate their own
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3170 register data.
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3171
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3172 Unless this function is called, the first search or match using
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3173 PATTERN_BUFFER will allocate its own register data, without
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3174 freeing the old data. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3175
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3176 void
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3177 re_set_registers (bufp, regs, num_regs, starts, ends)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3178 struct re_pattern_buffer *bufp;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3179 struct re_registers *regs;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3180 unsigned num_regs;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3181 regoff_t starts, ends;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3182 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3183 if (num_regs)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3184 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3185 bufp->regs_allocated = REGS_REALLOCATE;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3186 regs->num_regs = num_regs;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3187 regs->start = starts;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3188 regs->end = ends;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3189 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3190 else
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3191 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3192 bufp->regs_allocated = REGS_UNALLOCATED;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3193 regs->num_regs = 0;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3194 regs->start = regs->end = (regoff_t *) 0;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3195 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3196 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3197
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3198 /* Searching routines. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3199
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3200 /* Like re_search_2, below, but only one string is specified, and
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3201 doesn't let you say where to stop matching. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3202
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3203 int
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3204 re_search (bufp, string, size, startpos, range, regs)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3205 struct re_pattern_buffer *bufp;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3206 const char *string;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3207 int size, startpos, range;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3208 struct re_registers *regs;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3209 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3210 return re_search_2 (bufp, NULL, 0, string, size, startpos, range,
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3211 regs, size);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3212 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3213
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3214
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3215 /* Using the compiled pattern in BUFP->buffer, first tries to match the
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3216 virtual concatenation of STRING1 and STRING2, starting first at index
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3217 STARTPOS, then at STARTPOS + 1, and so on.
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3218
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3219 STRING1 and STRING2 have length SIZE1 and SIZE2, respectively.
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3220
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3221 RANGE is how far to scan while trying to match. RANGE = 0 means try
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3222 only at STARTPOS; in general, the last start tried is STARTPOS +
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3223 RANGE.
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3224
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3225 In REGS, return the indices of the virtual concatenation of STRING1
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3226 and STRING2 that matched the entire BUFP->buffer and its contained
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3227 subexpressions.
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3228
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3229 Do not consider matching one past the index STOP in the virtual
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3230 concatenation of STRING1 and STRING2.
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3231
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3232 We return either the position in the strings at which the match was
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3233 found, -1 if no match, or -2 if error (such as failure
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3234 stack overflow). */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3235
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3236 int
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3237 re_search_2 (bufp, string1, size1, string2, size2, startpos, range, regs, stop)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3238 struct re_pattern_buffer *bufp;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3239 const char string1, string2;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3240 int size1, size2;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3241 int startpos;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3242 int range;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3243 struct re_registers *regs;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3244 int stop;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3245 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3246 int val;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3247 register char *fastmap = bufp->fastmap;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3248 register char *translate = bufp->translate;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3249 int total_size = size1 + size2;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3250 int endpos = startpos + range;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3251
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3252 /* Check for out-of-range STARTPOS. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3253 if (startpos < 0 \|\| startpos > total_size)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3254 return -1;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3255
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3256 /* Fix up RANGE if it might eventually take us outside
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3257 the virtual concatenation of STRING1 and STRING2. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3258 if (endpos < -1)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3259 range = -1 - startpos;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3260 else if (endpos > total_size)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3261 range = total_size - startpos;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3262
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3263 /* If the search isn't to be a backwards one, don't waste time in a
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3264 search for a pattern that must be anchored. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3265 if (bufp->used > 0 && (re_opcode_t) bufp->buffer[0] == begbuf && range > 0)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3266 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3267 if (startpos > 0)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3268 return -1;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3269 else
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3270 range = 1;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3271 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3272
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3273 /* Update the fastmap now if not correct already. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3274 if (fastmap && !bufp->fastmap_accurate)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3275 if (re_compile_fastmap (bufp) == -2)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3276 return -2;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3277
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3278 /* Loop through the string, looking for a place to start matching. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3279 for (;;)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3280 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3281 /* If a fastmap is supplied, skip quickly over characters that
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3282 cannot be the start of a match. If the pattern can match the
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3283 null string, however, we don't need to skip characters; we want
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3284 the first null string. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3285 if (fastmap && startpos < total_size && !bufp->can_be_null)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3286 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3287 if (range > 0) /* Searching forwards. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3288 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3289 register const char *d;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3290 register int lim = 0;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3291 int irange = range;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3292
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3293 if (startpos < size1 && startpos + range >= size1)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3294 lim = range - (size1 - startpos);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3295
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3296 d = (startpos >= size1 ? string2 - size1 : string1) + startpos;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3297
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3298 /* Written out as an if-else to avoid testing `translate'
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3299 inside the loop. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3300 if (translate)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3301 while (range > lim
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3302 && !fastmap[(unsigned char)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3303 translate[(unsigned char) *d++]])
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3304 range--;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3305 else
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3306 while (range > lim && !fastmap[(unsigned char) *d++])
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3307 range--;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3308
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3309 startpos += irange - range;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3310 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3311 else /* Searching backwards. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3312 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3313 register char c = (size1 == 0 \|\| startpos >= size1
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3314 ? string2[startpos - size1]
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3315 : string1[startpos]);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3316
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3317 if (!fastmap[(unsigned char) TRANSLATE (c)])
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3318 goto advance;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3319 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3320 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3321
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3322 /* If can't match the null string, and that's all we have left, fail. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3323 if (range >= 0 && startpos == total_size && fastmap
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3324 && !bufp->can_be_null)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3325 return -1;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3326
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3327 val = re_match_2_internal (bufp, string1, size1, string2, size2,
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3328 startpos, regs, stop);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3329 #ifndef REGEX_MALLOC
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3330 #ifdef C_ALLOCA
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3331 alloca (0);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3332 #endif
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3333 #endif
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3334
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3335 if (val >= 0)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3336 return startpos;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3337
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3338 if (val == -2)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3339 return -2;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3340
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3341 advance:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3342 if (!range)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3343 break;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3344 else if (range > 0)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3345 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3346 range--;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3347 startpos++;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3348 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3349 else
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3350 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3351 range++;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3352 startpos--;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3353 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3354 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3355 return -1;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3356 } /* re_search_2 */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3357
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3358 /* Declarations and macros for re_match_2. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3359
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3360 static int bcmp_translate ();
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3361 static boolean alt_match_null_string_p (),
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3362 common_op_match_null_string_p (),
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3363 group_match_null_string_p ();
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3364
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3365 /* This converts PTR, a pointer into one of the search strings `string1'
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3366 and `string2' into an offset from the beginning of that string. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3367 #define POINTER_TO_OFFSET(ptr) \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3368 (FIRST_STRING_P (ptr) \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3369 ? ((regoff_t) ((ptr) - string1)) \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3370 : ((regoff_t) ((ptr) - string2 + size1)))
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3371
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3372 /* Macros for dealing with the split strings in re_match_2. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3373
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3374 #define MATCHING_IN_FIRST_STRING (dend == end_match_1)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3375
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3376 /* Call before fetching a character with *d. This switches over to
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3377 string2 if necessary. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3378 #define PREFETCH() \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3379 while (d == dend) \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3380 { \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3381 /* End of string2 => fail. */ \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3382 if (dend == end_match_2) \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3383 goto fail; \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3384 /* End of string1 => advance to string2. */ \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3385 d = string2; \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3386 dend = end_match_2; \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3387 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3388
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3389
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3390 /* Test if at very beginning or at very end of the virtual concatenation
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3391 of `string1' and `string2'. If only one string, it's `string2'. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3392 #define AT_STRINGS_BEG(d) ((d) == (size1 ? string1 : string2) \|\| !size2)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3393 #define AT_STRINGS_END(d) ((d) == end2)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3394
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3395
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3396 /* Test if D points to a character which is word-constituent. We have
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3397 two special cases to check for: if past the end of string1, look at
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3398 the first character in string2; and if before the beginning of
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3399 string2, look at the last character in string1. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3400 #define WORDCHAR_P(d) \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3401 (SYNTAX ((d) == end1 ? *string2 \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3402 : (d) == string2 - 1 ? (end1 - 1) : (d)) \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3403 == Sword)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3404
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3405 /* Test if the character before D and the one at D differ with respect
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3406 to being word-constituent. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3407 #define AT_WORD_BOUNDARY(d) \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3408 (AT_STRINGS_BEG (d) \|\| AT_STRINGS_END (d) \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3409 \|\| WORDCHAR_P (d - 1) != WORDCHAR_P (d))
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3410
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3411
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3412 /* Free everything we malloc. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3413 #ifdef MATCH_MAY_ALLOCATE
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3414 #define FREE_VAR(var) if (var) REGEX_FREE (var); var = NULL
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3415 #define FREE_VARIABLES() \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3416 do { \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3417 REGEX_FREE_STACK (fail_stack.stack); \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3418 FREE_VAR (regstart); \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3419 FREE_VAR (regend); \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3420 FREE_VAR (old_regstart); \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3421 FREE_VAR (old_regend); \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3422 FREE_VAR (best_regstart); \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3423 FREE_VAR (best_regend); \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3424 FREE_VAR (reg_info); \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3425 FREE_VAR (reg_dummy); \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3426 FREE_VAR (reg_info_dummy); \
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3427 } while (0)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3428 #else
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3429 #define FREE_VARIABLES() ((void)0) /* Do nothing! But inhibit gcc warning. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3430 #endif /* not MATCH_MAY_ALLOCATE */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3431
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3432 /* These values must meet several constraints. They must not be valid
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3433 register values; since we have a limit of 255 registers (because
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3434 we use only one byte in the pattern for the register number), we can
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3435 use numbers larger than 255. They must differ by 1, because of
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3436 NUM_FAILURE_ITEMS above. And the value for the lowest register must
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3437 be larger than the value for the highest register, so we do not try
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3438 to actually save any registers when none are active. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3439 #define NO_HIGHEST_ACTIVE_REG (1 << BYTEWIDTH)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3440 #define NO_LOWEST_ACTIVE_REG (NO_HIGHEST_ACTIVE_REG + 1)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3441
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3442 /* Matching routines. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3443
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3444 #ifndef emacs /* Emacs never uses this. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3445 /* re_match is like re_match_2 except it takes only a single string. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3446
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3447 int
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3448 re_match (bufp, string, size, pos, regs)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3449 struct re_pattern_buffer *bufp;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3450 const char *string;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3451 int size, pos;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3452 struct re_registers *regs;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3453 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3454 int result = re_match_2_internal (bufp, NULL, 0, string, size,
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3455 pos, regs, size);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3456 alloca (0);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3457 return result;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3458 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3459 #endif /* not emacs */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3460
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3461
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3462 /* re_match_2 matches the compiled pattern in BUFP against the
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3463 the (virtual) concatenation of STRING1 and STRING2 (of length SIZE1
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3464 and SIZE2, respectively). We start matching at POS, and stop
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3465 matching at STOP.
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3466
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3467 If REGS is non-null and the `no_sub' field of BUFP is nonzero, we
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3468 store offsets for the substring each group matched in REGS. See the
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3469 documentation for exactly how many groups we fill.
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3470
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3471 We return -1 if no match, -2 if an internal error (such as the
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3472 failure stack overflowing). Otherwise, we return the length of the
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3473 matched substring. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3474
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3475 int
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3476 re_match_2 (bufp, string1, size1, string2, size2, pos, regs, stop)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3477 struct re_pattern_buffer *bufp;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3478 const char string1, string2;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3479 int size1, size2;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3480 int pos;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3481 struct re_registers *regs;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3482 int stop;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3483 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3484 int result = re_match_2_internal (bufp, string1, size1, string2, size2,
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3485 pos, regs, stop);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3486 alloca (0);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3487 return result;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3488 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3489
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3490 /* This is a separate function so that we can force an alloca cleanup
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3491 afterwards. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3492 static int
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3493 re_match_2_internal (bufp, string1, size1, string2, size2, pos, regs, stop)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3494 struct re_pattern_buffer *bufp;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3495 const char string1, string2;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3496 int size1, size2;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3497 int pos;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3498 struct re_registers *regs;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3499 int stop;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3500 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3501 /* General temporaries. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3502 int mcnt;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3503 unsigned char *p1;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3504
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3505 /* Just past the end of the corresponding string. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3506 const char end1, end2;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3507
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3508 /* Pointers into string1 and string2, just past the last characters in
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3509 each to consider matching. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3510 const char end_match_1, end_match_2;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3511
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3512 /* Where we are in the data, and the end of the current string. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3513 const char d, dend;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3514
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3515 /* Where we are in the pattern, and the end of the pattern. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3516 unsigned char *p = bufp->buffer;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3517 register unsigned char *pend = p + bufp->used;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3518
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3519 /* Mark the opcode just after a start_memory, so we can test for an
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3520 empty subpattern when we get to the stop_memory. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3521 unsigned char *just_past_start_mem = 0;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3522
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3523 /* We use this to map every character in the string. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3524 char *translate = bufp->translate;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3525
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3526 /* Failure point stack. Each place that can handle a failure further
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3527 down the line pushes a failure point on this stack. It consists of
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3528 restart, regend, and reg_info for all registers corresponding to
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3529 the subexpressions we're currently inside, plus the number of such
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3530 registers, and, finally, two char 's. The first char is where
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3531 to resume scanning the pattern; the second one is where to resume
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3532 scanning the strings. If the latter is zero, the failure point is
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3533 a ``dummy''; if a failure happens and the failure point is a dummy,
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3534 it gets discarded and the next next one is tried. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3535 #ifdef MATCH_MAY_ALLOCATE /* otherwise, this is global. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3536 fail_stack_type fail_stack;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3537 #endif
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3538 #ifdef DEBUG
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3539 static unsigned failure_id = 0;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3540 unsigned nfailure_points_pushed = 0, nfailure_points_popped = 0;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3541 #endif
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3542
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3543 /* This holds the pointer to the failure stack, when
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3544 it is allocated relocatably. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3545 fail_stack_elt_t *failure_stack_ptr;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3546
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3547 /* We fill all the registers internally, independent of what we
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3548 return, for use in backreferences. The number here includes
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3549 an element for register zero. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3550 unsigned num_regs = bufp->re_nsub + 1;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3551
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3552 /* The currently active registers. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3553 unsigned lowest_active_reg = NO_LOWEST_ACTIVE_REG;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3554 unsigned highest_active_reg = NO_HIGHEST_ACTIVE_REG;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3555
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3556 /* Information on the contents of registers. These are pointers into
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3557 the input strings; they record just what was matched (on this
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3558 attempt) by a subexpression part of the pattern, that is, the
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3559 regnum-th regstart pointer points to where in the pattern we began
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3560 matching and the regnum-th regend points to right after where we
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3561 stopped matching the regnum-th subexpression. (The zeroth register
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3562 keeps track of what the whole pattern matches.) */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3563 #ifdef MATCH_MAY_ALLOCATE /* otherwise, these are global. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3564 const char regstart, regend;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3565 #endif
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3566
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3567 /* If a group that's operated upon by a repetition operator fails to
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3568 match anything, then the register for its start will need to be
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3569 restored because it will have been set to wherever in the string we
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3570 are when we last see its open-group operator. Similarly for a
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3571 register's end. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3572 #ifdef MATCH_MAY_ALLOCATE /* otherwise, these are global. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3573 const char old_regstart, old_regend;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3574 #endif
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3575
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3576 /* The is_active field of reg_info helps us keep track of which (possibly
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3577 nested) subexpressions we are currently in. The matched_something
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3578 field of reg_info[reg_num] helps us tell whether or not we have
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3579 matched any of the pattern so far this time through the reg_num-th
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3580 subexpression. These two fields get reset each time through any
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3581 loop their register is in. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3582 #ifdef MATCH_MAY_ALLOCATE /* otherwise, this is global. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3583 register_info_type *reg_info;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3584 #endif
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3585
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3586 /* The following record the register info as found in the above
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3587 variables when we find a match better than any we've seen before.
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3588 This happens as we backtrack through the failure points, which in
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3589 turn happens only if we have not yet matched the entire string. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3590 unsigned best_regs_set = false;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3591 #ifdef MATCH_MAY_ALLOCATE /* otherwise, these are global. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3592 const char best_regstart, best_regend;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3593 #endif
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3594
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3595 /* Logically, this is `best_regend[0]'. But we don't want to have to
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3596 allocate space for that if we're not allocating space for anything
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3597 else (see below). Also, we never need info about register 0 for
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3598 any of the other register vectors, and it seems rather a kludge to
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3599 treat `best_regend' differently than the rest. So we keep track of
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3600 the end of the best match so far in a separate variable. We
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3601 initialize this to NULL so that when we backtrack the first time
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3602 and need to test it, it's not garbage. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3603 const char *match_end = NULL;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3604
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3605 /* This helps SET_REGS_MATCHED avoid doing redundant work. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3606 int set_regs_matched_done = 0;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3607
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3608 /* Used when we pop values we don't care about. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3609 #ifdef MATCH_MAY_ALLOCATE /* otherwise, these are global. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3610 const char **reg_dummy;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3611 register_info_type *reg_info_dummy;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3612 #endif
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3613
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3614 #ifdef DEBUG
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3615 /* Counts the total number of registers pushed. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3616 unsigned num_regs_pushed = 0;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3617 #endif
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3618
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3619 DEBUG_PRINT1 ("\n\nEntering re_match_2.\n");
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3620
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3621 INIT_FAIL_STACK ();
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3622
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3623 #ifdef MATCH_MAY_ALLOCATE
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3624 /* Do not bother to initialize all the register variables if there are
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3625 no groups in the pattern, as it takes a fair amount of time. If
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3626 there are groups, we include space for register 0 (the whole
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3627 pattern), even though we never use it, since it simplifies the
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3628 array indexing. We should fix this. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3629 if (bufp->re_nsub)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3630 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3631 regstart = REGEX_TALLOC (num_regs, const char *);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3632 regend = REGEX_TALLOC (num_regs, const char *);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3633 old_regstart = REGEX_TALLOC (num_regs, const char *);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3634 old_regend = REGEX_TALLOC (num_regs, const char *);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3635 best_regstart = REGEX_TALLOC (num_regs, const char *);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3636 best_regend = REGEX_TALLOC (num_regs, const char *);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3637 reg_info = REGEX_TALLOC (num_regs, register_info_type);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3638 reg_dummy = REGEX_TALLOC (num_regs, const char *);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3639 reg_info_dummy = REGEX_TALLOC (num_regs, register_info_type);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3640
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3641 if (!(regstart && regend && old_regstart && old_regend && reg_info
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3642 && best_regstart && best_regend && reg_dummy && reg_info_dummy))
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3643 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3644 FREE_VARIABLES ();
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3645 return -2;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3646 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3647 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3648 else
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3649 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3650 /* We must initialize all our variables to NULL, so that
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3651 `FREE_VARIABLES' doesn't try to free them. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3652 regstart = regend = old_regstart = old_regend = best_regstart
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3653 = best_regend = reg_dummy = NULL;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3654 reg_info = reg_info_dummy = (register_info_type *) NULL;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3655 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3656 #endif /* MATCH_MAY_ALLOCATE */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3657
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3658 /* The starting position is bogus. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3659 if (pos < 0 \|\| pos > size1 + size2)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3660 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3661 FREE_VARIABLES ();
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3662 return -1;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3663 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3664
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3665 /* Initialize subexpression text positions to -1 to mark ones that no
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3666 start_memory/stop_memory has been seen for. Also initialize the
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3667 register information struct. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3668 for (mcnt = 1; mcnt < num_regs; mcnt++)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3669 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3670 regstart[mcnt] = regend[mcnt]
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3671 = old_regstart[mcnt] = old_regend[mcnt] = REG_UNSET_VALUE;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3672
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3673 REG_MATCH_NULL_STRING_P (reg_info[mcnt]) = MATCH_NULL_UNSET_VALUE;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3674 IS_ACTIVE (reg_info[mcnt]) = 0;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3675 MATCHED_SOMETHING (reg_info[mcnt]) = 0;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3676 EVER_MATCHED_SOMETHING (reg_info[mcnt]) = 0;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3677 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3678
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3679 /* We move `string1' into `string2' if the latter's empty -- but not if
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3680 `string1' is null. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3681 if (size2 == 0 && string1 != NULL)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3682 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3683 string2 = string1;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3684 size2 = size1;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3685 string1 = 0;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3686 size1 = 0;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3687 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3688 end1 = string1 + size1;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3689 end2 = string2 + size2;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3690
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3691 /* Compute where to stop matching, within the two strings. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3692 if (stop <= size1)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3693 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3694 end_match_1 = string1 + stop;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3695 end_match_2 = string2;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3696 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3697 else
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3698 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3699 end_match_1 = end1;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3700 end_match_2 = string2 + stop - size1;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3701 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3702
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3703 /* `p' scans through the pattern as `d' scans through the data.
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3704 `dend' is the end of the input string that `d' points within. `d'
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3705 is advanced into the following input string whenever necessary, but
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3706 this happens before fetching; therefore, at the beginning of the
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3707 loop, `d' can be pointing at the end of a string, but it cannot
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3708 equal `string2'. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3709 if (size1 > 0 && pos <= size1)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3710 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3711 d = string1 + pos;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3712 dend = end_match_1;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3713 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3714 else
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3715 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3716 d = string2 + pos - size1;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3717 dend = end_match_2;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3718 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3719
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3720 DEBUG_PRINT1 ("The compiled pattern is: ");
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3721 DEBUG_PRINT_COMPILED_PATTERN (bufp, p, pend);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3722 DEBUG_PRINT1 ("The string to match is: `");
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3723 DEBUG_PRINT_DOUBLE_STRING (d, string1, size1, string2, size2);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3724 DEBUG_PRINT1 ("'\n");
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3725
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3726 /* This loops over pattern commands. It exits by returning from the
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3727 function if the match is complete, or it drops through if the match
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3728 fails at this starting point in the input data. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3729 for (;;)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3730 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3731 DEBUG_PRINT2 ("\n0x%x: ", p);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3732
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3733 if (p == pend)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3734 { /* End of pattern means we might have succeeded. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3735 DEBUG_PRINT1 ("end of pattern ... ");
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3736
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3737 /* If we haven't matched the entire string, and we want the
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3738 longest match, try backtracking. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3739 if (d != end_match_2)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3740 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3741 /* 1 if this match ends in the same string (string1 or string2)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3742 as the best previous match. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3743 boolean same_str_p = (FIRST_STRING_P (match_end)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3744 == MATCHING_IN_FIRST_STRING);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3745 /* 1 if this match is the best seen so far. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3746 boolean best_match_p;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3747
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3748 /* AIX compiler got confused when this was combined
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3749 with the previous declaration. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3750 if (same_str_p)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3751 best_match_p = d > match_end;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3752 else
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3753 best_match_p = !MATCHING_IN_FIRST_STRING;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3754
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3755 DEBUG_PRINT1 ("backtracking.\n");
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3756
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3757 if (!FAIL_STACK_EMPTY ())
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3758 { /* More failure points to try. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3759
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3760 /* If exceeds best match so far, save it. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3761 if (!best_regs_set \|\| best_match_p)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3762 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3763 best_regs_set = true;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3764 match_end = d;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3765
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3766 DEBUG_PRINT1 ("\nSAVING match as best so far.\n");
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3767
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3768 for (mcnt = 1; mcnt < num_regs; mcnt++)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3769 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3770 best_regstart[mcnt] = regstart[mcnt];
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3771 best_regend[mcnt] = regend[mcnt];
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3772 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3773 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3774 goto fail;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3775 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3776
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3777 /* If no failure points, don't restore garbage. And if
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3778 last match is real best match, don't restore second
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3779 best one. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3780 else if (best_regs_set && !best_match_p)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3781 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3782 restore_best_regs:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3783 /* Restore best match. It may happen that `dend ==
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3784 end_match_1' while the restored d is in string2.
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3785 For example, the pattern `x.y.z' against the
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3786 strings `x-' and `y-z-', if the two strings are
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3787 not consecutive in memory. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3788 DEBUG_PRINT1 ("Restoring best registers.\n");
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3789
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3790 d = match_end;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3791 dend = ((d >= string1 && d <= end1)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3792 ? end_match_1 : end_match_2);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3793
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3794 for (mcnt = 1; mcnt < num_regs; mcnt++)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3795 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3796 regstart[mcnt] = best_regstart[mcnt];
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3797 regend[mcnt] = best_regend[mcnt];
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3798 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3799 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3800 } /* d != end_match_2 */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3801
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3802 succeed_label:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3803 DEBUG_PRINT1 ("Accepting match.\n");
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3804
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3805 /* If caller wants register contents data back, do it. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3806 if (regs && !bufp->no_sub)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3807 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3808 /* Have the register data arrays been allocated? */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3809 if (bufp->regs_allocated == REGS_UNALLOCATED)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3810 { /* No. So allocate them with malloc. We need one
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3811 extra element beyond `num_regs' for the `-1' marker
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3812 GNU code uses. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3813 regs->num_regs = MAX (RE_NREGS, num_regs + 1);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3814 regs->start = TALLOC (regs->num_regs, regoff_t);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3815 regs->end = TALLOC (regs->num_regs, regoff_t);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3816 if (regs->start == NULL \|\| regs->end == NULL)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3817 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3818 FREE_VARIABLES ();
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3819 return -2;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3820 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3821 bufp->regs_allocated = REGS_REALLOCATE;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3822 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3823 else if (bufp->regs_allocated == REGS_REALLOCATE)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3824 { /* Yes. If we need more elements than were already
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3825 allocated, reallocate them. If we need fewer, just
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3826 leave it alone. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3827 if (regs->num_regs < num_regs + 1)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3828 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3829 regs->num_regs = num_regs + 1;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3830 RETALLOC (regs->start, regs->num_regs, regoff_t);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3831 RETALLOC (regs->end, regs->num_regs, regoff_t);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3832 if (regs->start == NULL \|\| regs->end == NULL)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3833 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3834 FREE_VARIABLES ();
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3835 return -2;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3836 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3837 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3838 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3839 else
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3840 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3841 /* These braces fend off a "empty body in an else-statement"
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3842 warning under GCC when assert expands to nothing. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3843 assert (bufp->regs_allocated == REGS_FIXED);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3844 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3845
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3846 /* Convert the pointer data in `regstart' and `regend' to
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3847 indices. Register zero has to be set differently,
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3848 since we haven't kept track of any info for it. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3849 if (regs->num_regs > 0)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3850 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3851 regs->start[0] = pos;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3852 regs->end[0] = (MATCHING_IN_FIRST_STRING
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3853 ? ((regoff_t) (d - string1))
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3854 : ((regoff_t) (d - string2 + size1)));
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3855 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3856
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3857 /* Go through the first `min (num_regs, regs->num_regs)'
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3858 registers, since that is all we initialized. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3859 for (mcnt = 1; mcnt < MIN (num_regs, regs->num_regs); mcnt++)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3860 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3861 if (REG_UNSET (regstart[mcnt]) \|\| REG_UNSET (regend[mcnt]))
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3862 regs->start[mcnt] = regs->end[mcnt] = -1;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3863 else
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3864 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3865 regs->start[mcnt]
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3866 = (regoff_t) POINTER_TO_OFFSET (regstart[mcnt]);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3867 regs->end[mcnt]
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3868 = (regoff_t) POINTER_TO_OFFSET (regend[mcnt]);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3869 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3870 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3871
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3872 /* If the regs structure we return has more elements than
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3873 were in the pattern, set the extra elements to -1. If
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3874 we (re)allocated the registers, this is the case,
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3875 because we always allocate enough to have at least one
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3876 -1 at the end. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3877 for (mcnt = num_regs; mcnt < regs->num_regs; mcnt++)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3878 regs->start[mcnt] = regs->end[mcnt] = -1;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3879 } /* regs && !bufp->no_sub */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3880
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3881 DEBUG_PRINT4 ("%u failure points pushed, %u popped (%u remain).\n",
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3882 nfailure_points_pushed, nfailure_points_popped,
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3883 nfailure_points_pushed - nfailure_points_popped);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3884 DEBUG_PRINT2 ("%u registers pushed.\n", num_regs_pushed);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3885
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3886 mcnt = d - pos - (MATCHING_IN_FIRST_STRING
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3887 ? string1
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3888 : string2 - size1);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3889
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3890 DEBUG_PRINT2 ("Returning %d from re_match_2.\n", mcnt);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3891
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3892 FREE_VARIABLES ();
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3893 return mcnt;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3894 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3895
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3896 /* Otherwise match next pattern command. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3897 switch (SWITCH_ENUM_CAST ((re_opcode_t) *p++))
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3898 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3899 /* Ignore these. Used to ignore the n of succeed_n's which
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3900 currently have n == 0. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3901 case no_op:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3902 DEBUG_PRINT1 ("EXECUTING no_op.\n");
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3903 break;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3904
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3905 case succeed:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3906 DEBUG_PRINT1 ("EXECUTING succeed.\n");
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3907 goto succeed_label;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3908
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3909 /* Match the next n pattern characters exactly. The following
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3910 byte in the pattern defines n, and the n bytes after that
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3911 are the characters to match. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3912 case exactn:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3913 mcnt = *p++;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3914 DEBUG_PRINT2 ("EXECUTING exactn %d.\n", mcnt);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3915
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3916 /* This is written out as an if-else so we don't waste time
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3917 testing `translate' inside the loop. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3918 if (translate)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3919 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3920 do
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3921 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3922 PREFETCH ();
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3923 if (translate[(unsigned char) d++] != (char) p++)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3924 goto fail;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3925 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3926 while (--mcnt);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3927 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3928 else
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3929 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3930 do
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3931 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3932 PREFETCH ();
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3933 if (d++ != (char) p++) goto fail;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3934 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3935 while (--mcnt);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3936 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3937 SET_REGS_MATCHED ();
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3938 break;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3939
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3940
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3941 /* Match any character except possibly a newline or a null. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3942 case anychar:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3943 DEBUG_PRINT1 ("EXECUTING anychar.\n");
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3944
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3945 PREFETCH ();
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3946
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3947 if ((!(bufp->syntax & RE_DOT_NEWLINE) && TRANSLATE (*d) == '\n')
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3948 \|\| (bufp->syntax & RE_DOT_NOT_NULL && TRANSLATE (*d) == '\000'))
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3949 goto fail;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3950
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3951 SET_REGS_MATCHED ();
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3952 DEBUG_PRINT2 (" Matched `%d'.\n", *d);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3953 d++;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3954 break;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3955
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3956
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3957 case charset:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3958 case charset_not:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3959 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3960 register unsigned char c;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3961 boolean not = (re_opcode_t) *(p - 1) == charset_not;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3962
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3963 DEBUG_PRINT2 ("EXECUTING charset%s.\n", not ? "_not" : "");
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3964
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3965 PREFETCH ();
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3966 c = TRANSLATE (d); / The character to match. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3967
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3968 /* Cast to `unsigned' instead of `unsigned char' in case the
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3969 bit list is a full 32 bytes long. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3970 if (c < (unsigned) (p BYTEWIDTH)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3971 && p[1 + c / BYTEWIDTH] & (1 << (c % BYTEWIDTH)))
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3972 not = !not;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3973
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3974 p += 1 + *p;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3975
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3976 if (!not) goto fail;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3977
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3978 SET_REGS_MATCHED ();
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3979 d++;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3980 break;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3981 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3982
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3983
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3984 /* The beginning of a group is represented by start_memory.
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3985 The arguments are the register number in the next byte, and the
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3986 number of groups inner to this one in the next. The text
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3987 matched within the group is recorded (in the internal
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3988 registers data structure) under the register number. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3989 case start_memory:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3990 DEBUG_PRINT3 ("EXECUTING start_memory %d (%d):\n", *p, p[1]);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3991
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3992 /* Find out if this group can match the empty string. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3993 p1 = p; /* To send to group_match_null_string_p. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3994
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3995 if (REG_MATCH_NULL_STRING_P (reg_info[*p]) == MATCH_NULL_UNSET_VALUE)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3996 REG_MATCH_NULL_STRING_P (reg_info[*p])
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3997 = group_match_null_string_p (&p1, pend, reg_info);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3998
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	3999 /* Save the position in the string where we were the last time
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4000 we were at this open-group operator in case the group is
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4001 operated upon by a repetition operator, e.g., with `(a)b'
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4002 against `ab'; then we want to ignore where we are now in
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4003 the string in case this attempt to match fails. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4004 old_regstart[p] = REG_MATCH_NULL_STRING_P (reg_info[p])
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4005 ? REG_UNSET (regstart[p]) ? d : regstart[p]
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4006 : regstart[*p];
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4007 DEBUG_PRINT2 (" old_regstart: %d\n",
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4008 POINTER_TO_OFFSET (old_regstart[*p]));
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4009
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4010 regstart[*p] = d;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4011 DEBUG_PRINT2 (" regstart: %d\n", POINTER_TO_OFFSET (regstart[*p]));
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4012
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4013 IS_ACTIVE (reg_info[*p]) = 1;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4014 MATCHED_SOMETHING (reg_info[*p]) = 0;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4015
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4016 /* Clear this whenever we change the register activity status. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4017 set_regs_matched_done = 0;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4018
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4019 /* This is the new highest active register. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4020 highest_active_reg = *p;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4021
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4022 /* If nothing was active before, this is the new lowest active
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4023 register. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4024 if (lowest_active_reg == NO_LOWEST_ACTIVE_REG)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4025 lowest_active_reg = *p;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4026
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4027 /* Move past the register number and inner group count. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4028 p += 2;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4029 just_past_start_mem = p;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4030
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4031 break;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4032
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4033
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4034 /* The stop_memory opcode represents the end of a group. Its
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4035 arguments are the same as start_memory's: the register
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4036 number, and the number of inner groups. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4037 case stop_memory:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4038 DEBUG_PRINT3 ("EXECUTING stop_memory %d (%d):\n", *p, p[1]);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4039
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4040 /* We need to save the string position the last time we were at
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4041 this close-group operator in case the group is operated
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4042 upon by a repetition operator, e.g., with `((a)(b))*'
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4043 against `aba'; then we want to ignore where we are now in
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4044 the string in case this attempt to match fails. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4045 old_regend[p] = REG_MATCH_NULL_STRING_P (reg_info[p])
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4046 ? REG_UNSET (regend[p]) ? d : regend[p]
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4047 : regend[*p];
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4048 DEBUG_PRINT2 (" old_regend: %d\n",
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4049 POINTER_TO_OFFSET (old_regend[*p]));
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4050
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4051 regend[*p] = d;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4052 DEBUG_PRINT2 (" regend: %d\n", POINTER_TO_OFFSET (regend[*p]));
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4053
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4054 /* This register isn't active anymore. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4055 IS_ACTIVE (reg_info[*p]) = 0;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4056
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4057 /* Clear this whenever we change the register activity status. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4058 set_regs_matched_done = 0;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4059
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4060 /* If this was the only register active, nothing is active
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4061 anymore. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4062 if (lowest_active_reg == highest_active_reg)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4063 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4064 lowest_active_reg = NO_LOWEST_ACTIVE_REG;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4065 highest_active_reg = NO_HIGHEST_ACTIVE_REG;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4066 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4067 else
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4068 { /* We must scan for the new highest active register, since
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4069 it isn't necessarily one less than now: consider
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4070 (a(b)c(d(e)f)g). When group 3 ends, after the f), the
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4071 new highest active register is 1. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4072 unsigned char r = *p - 1;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4073 while (r > 0 && !IS_ACTIVE (reg_info[r]))
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4074 r--;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4075
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4076 /* If we end up at register zero, that means that we saved
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4077 the registers as the result of an `on_failure_jump', not
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4078 a `start_memory', and we jumped to past the innermost
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4079 `stop_memory'. For example, in ((.)*) we save
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4080 registers 1 and 2 as a result of the *, but when we pop
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4081 back to the second ), we are at the stop_memory 1.
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4082 Thus, nothing is active. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4083 if (r == 0)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4084 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4085 lowest_active_reg = NO_LOWEST_ACTIVE_REG;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4086 highest_active_reg = NO_HIGHEST_ACTIVE_REG;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4087 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4088 else
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4089 highest_active_reg = r;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4090 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4091
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4092 /* If just failed to match something this time around with a
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4093 group that's operated on by a repetition operator, try to
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4094 force exit from the ``loop'', and restore the register
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4095 information for this group that we had before trying this
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4096 last match. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4097 if ((!MATCHED_SOMETHING (reg_info[*p])
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4098 \|\| just_past_start_mem == p - 1)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4099 && (p + 2) < pend)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4100 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4101 boolean is_a_jump_n = false;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4102
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4103 p1 = p + 2;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4104 mcnt = 0;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4105 switch ((re_opcode_t) *p1++)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4106 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4107 case jump_n:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4108 is_a_jump_n = true;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4109 case pop_failure_jump:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4110 case maybe_pop_jump:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4111 case jump:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4112 case dummy_failure_jump:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4113 EXTRACT_NUMBER_AND_INCR (mcnt, p1);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4114 if (is_a_jump_n)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4115 p1 += 2;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4116 break;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4117
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4118 default:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4119 /* do nothing */ ;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4120 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4121 p1 += mcnt;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4122
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4123 /* If the next operation is a jump backwards in the pattern
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4124 to an on_failure_jump right before the start_memory
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4125 corresponding to this stop_memory, exit from the loop
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4126 by forcing a failure after pushing on the stack the
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4127 on_failure_jump's jump in the pattern, and d. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4128 if (mcnt < 0 && (re_opcode_t) *p1 == on_failure_jump
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4129 && (re_opcode_t) p1[3] == start_memory && p1[4] == *p)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4130 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4131 /* If this group ever matched anything, then restore
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4132 what its registers were before trying this last
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4133 failed match, e.g., with `(a)b' against `ab' for
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4134 regstart[1], and, e.g., with `((a)(b))*'
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4135 against `aba' for regend[3].
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4136
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4137 Also restore the registers for inner groups for,
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4138 e.g., `((a)(b))*' against `aba' (register 3 would
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4139 otherwise get trashed). */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4140
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4141 if (EVER_MATCHED_SOMETHING (reg_info[*p]))
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4142 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4143 unsigned r;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4144
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4145 EVER_MATCHED_SOMETHING (reg_info[*p]) = 0;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4146
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4147 /* Restore this and inner groups' (if any) registers. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4148 for (r = p; r < p + *(p + 1); r++)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4149 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4150 regstart[r] = old_regstart[r];
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4151
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4152 /* xx why this test? */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4153 if (old_regend[r] >= regstart[r])
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4154 regend[r] = old_regend[r];
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4155 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4156 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4157 p1++;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4158 EXTRACT_NUMBER_AND_INCR (mcnt, p1);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4159 PUSH_FAILURE_POINT (p1 + mcnt, d, -2);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4160
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4161 goto fail;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4162 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4163 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4164
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4165 /* Move past the register number and the inner group count. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4166 p += 2;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4167 break;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4168
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4169
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4170 /* \<digit> has been turned into a `duplicate' command which is
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4171 followed by the numeric value of <digit> as the register number. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4172 case duplicate:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4173 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4174 register const char d2, dend2;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4175 int regno = p++; / Get which register to match against. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4176 DEBUG_PRINT2 ("EXECUTING duplicate %d.\n", regno);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4177
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4178 /* Can't back reference a group which we've never matched. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4179 if (REG_UNSET (regstart[regno]) \|\| REG_UNSET (regend[regno]))
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4180 goto fail;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4181
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4182 /* Where in input to try to start matching. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4183 d2 = regstart[regno];
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4184
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4185 /* Where to stop matching; if both the place to start and
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4186 the place to stop matching are in the same string, then
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4187 set to the place to stop, otherwise, for now have to use
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4188 the end of the first string. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4189
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4190 dend2 = ((FIRST_STRING_P (regstart[regno])
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4191 == FIRST_STRING_P (regend[regno]))
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4192 ? regend[regno] : end_match_1);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4193 for (;;)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4194 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4195 /* If necessary, advance to next segment in register
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4196 contents. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4197 while (d2 == dend2)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4198 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4199 if (dend2 == end_match_2) break;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4200 if (dend2 == regend[regno]) break;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4201
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4202 /* End of string1 => advance to string2. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4203 d2 = string2;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4204 dend2 = regend[regno];
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4205 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4206 /* At end of register contents => success */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4207 if (d2 == dend2) break;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4208
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4209 /* If necessary, advance to next segment in data. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4210 PREFETCH ();
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4211
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4212 /* How many characters left in this segment to match. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4213 mcnt = dend - d;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4214
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4215 /* Want how many consecutive characters we can match in
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4216 one shot, so, if necessary, adjust the count. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4217 if (mcnt > dend2 - d2)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4218 mcnt = dend2 - d2;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4219
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4220 /* Compare that many; failure if mismatch, else move
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4221 past them. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4222 if (translate
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4223 ? bcmp_translate (d, d2, mcnt, translate)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4224 : bcmp (d, d2, mcnt))
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4225 goto fail;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4226 d += mcnt, d2 += mcnt;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4227
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4228 /* Do this because we've match some characters. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4229 SET_REGS_MATCHED ();
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4230 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4231 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4232 break;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4233
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4234
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4235 /* begline matches the empty string at the beginning of the string
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4236 (unless `not_bol' is set in `bufp'), and, if
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4237 `newline_anchor' is set, after newlines. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4238 case begline:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4239 DEBUG_PRINT1 ("EXECUTING begline.\n");
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4240
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4241 if (AT_STRINGS_BEG (d))
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4242 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4243 if (!bufp->not_bol) break;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4244 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4245 else if (d[-1] == '\n' && bufp->newline_anchor)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4246 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4247 break;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4248 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4249 /* In all other cases, we fail. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4250 goto fail;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4251
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4252
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4253 /* endline is the dual of begline. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4254 case endline:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4255 DEBUG_PRINT1 ("EXECUTING endline.\n");
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4256
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4257 if (AT_STRINGS_END (d))
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4258 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4259 if (!bufp->not_eol) break;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4260 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4261
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4262 /* We have to ``prefetch'' the next character. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4263 else if ((d == end1 ? string2 : d) == '\n'
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4264 && bufp->newline_anchor)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4265 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4266 break;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4267 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4268 goto fail;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4269
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4270
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4271 /* Match at the very beginning of the data. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4272 case begbuf:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4273 DEBUG_PRINT1 ("EXECUTING begbuf.\n");
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4274 if (AT_STRINGS_BEG (d))
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4275 break;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4276 goto fail;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4277
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4278
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4279 /* Match at the very end of the data. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4280 case endbuf:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4281 DEBUG_PRINT1 ("EXECUTING endbuf.\n");
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4282 if (AT_STRINGS_END (d))
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4283 break;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4284 goto fail;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4285
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4286
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4287 /* on_failure_keep_string_jump is used to optimize `.*\n'. It
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4288 pushes NULL as the value for the string on the stack. Then
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4289 `pop_failure_point' will keep the current value for the
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4290 string, instead of restoring it. To see why, consider
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4291 matching `foo\nbar' against `.\n'. The . matches the foo;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4292 then the . fails against the \n. But the next thing we want
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4293 to do is match the \n against the \n; if we restored the
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4294 string value, we would be back at the foo.
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4295
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4296 Because this is used only in specific cases, we don't need to
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4297 check all the things that `on_failure_jump' does, to make
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4298 sure the right things get saved on the stack. Hence we don't
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4299 share its code. The only reason to push anything on the
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4300 stack at all is that otherwise we would have to change
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4301 `anychar's code to do something besides goto fail in this
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4302 case; that seems worse than this. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4303 case on_failure_keep_string_jump:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4304 DEBUG_PRINT1 ("EXECUTING on_failure_keep_string_jump");
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4305
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4306 EXTRACT_NUMBER_AND_INCR (mcnt, p);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4307 DEBUG_PRINT3 (" %d (to 0x%x):\n", mcnt, p + mcnt);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4308
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4309 PUSH_FAILURE_POINT (p + mcnt, NULL, -2);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4310 break;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4311
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4312
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4313 /* Uses of on_failure_jump:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4314
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4315 Each alternative starts with an on_failure_jump that points
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4316 to the beginning of the next alternative. Each alternative
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4317 except the last ends with a jump that in effect jumps past
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4318 the rest of the alternatives. (They really jump to the
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4319 ending jump of the following alternative, because tensioning
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4320 these jumps is a hassle.)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4321
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4322 Repeats start with an on_failure_jump that points past both
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4323 the repetition text and either the following jump or
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4324 pop_failure_jump back to this on_failure_jump. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4325 case on_failure_jump:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4326 on_failure:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4327 DEBUG_PRINT1 ("EXECUTING on_failure_jump");
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4328
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4329 EXTRACT_NUMBER_AND_INCR (mcnt, p);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4330 DEBUG_PRINT3 (" %d (to 0x%x)", mcnt, p + mcnt);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4331
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4332 /* If this on_failure_jump comes right before a group (i.e.,
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4333 the original * applied to a group), save the information
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4334 for that group and all inner ones, so that if we fail back
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4335 to this point, the group's information will be correct.
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4336 For example, in $a$\1, we need the preceding group,
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4337 and in $\(a$b\)\2, we need the inner group. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4338
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4339 /* We can't use `p' to check ahead because we push
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4340 a failure point to `p + mcnt' after we do this. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4341 p1 = p;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4342
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4343 /* We need to skip no_op's before we look for the
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4344 start_memory in case this on_failure_jump is happening as
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4345 the result of a completed succeed_n, as in $a$\{1,3\}b\1
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4346 against aba. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4347 while (p1 < pend && (re_opcode_t) *p1 == no_op)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4348 p1++;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4349
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4350 if (p1 < pend && (re_opcode_t) *p1 == start_memory)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4351 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4352 /* We have a new highest active register now. This will
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4353 get reset at the start_memory we are about to get to,
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4354 but we will have saved all the registers relevant to
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4355 this repetition op, as described above. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4356 highest_active_reg = (p1 + 1) + (p1 + 2);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4357 if (lowest_active_reg == NO_LOWEST_ACTIVE_REG)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4358 lowest_active_reg = *(p1 + 1);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4359 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4360
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4361 DEBUG_PRINT1 (":\n");
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4362 PUSH_FAILURE_POINT (p + mcnt, d, -2);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4363 break;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4364
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4365
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4366 /* A smart repeat ends with `maybe_pop_jump'.
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4367 We change it to either `pop_failure_jump' or `jump'. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4368 case maybe_pop_jump:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4369 EXTRACT_NUMBER_AND_INCR (mcnt, p);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4370 DEBUG_PRINT2 ("EXECUTING maybe_pop_jump %d.\n", mcnt);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4371 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4372 register unsigned char *p2 = p;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4373
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4374 /* Compare the beginning of the repeat with what in the
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4375 pattern follows its end. If we can establish that there
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4376 is nothing that they would both match, i.e., that we
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4377 would have to backtrack because of (as in, e.g., `a*a')
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4378 then we can change to pop_failure_jump, because we'll
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4379 never have to backtrack.
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4380
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4381 This is not true in the case of alternatives: in
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4382 `(a\|ab)*' we do need to backtrack to the `ab' alternative
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4383 (e.g., if the string was `ab'). But instead of trying to
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4384 detect that here, the alternative has put on a dummy
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4385 failure point which is what we will end up popping. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4386
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4387 /* Skip over open/close-group commands.
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4388 If what follows this loop is a ...+ construct,
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4389 look at what begins its body, since we will have to
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4390 match at least one of that. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4391 while (1)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4392 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4393 if (p2 + 2 < pend
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4394 && ((re_opcode_t) *p2 == stop_memory
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4395 \|\| (re_opcode_t) *p2 == start_memory))
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4396 p2 += 3;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4397 else if (p2 + 6 < pend
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4398 && (re_opcode_t) *p2 == dummy_failure_jump)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4399 p2 += 6;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4400 else
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4401 break;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4402 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4403
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4404 p1 = p + mcnt;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4405 /* p1[0] ... p1[2] are the `on_failure_jump' corresponding
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4406 to the `maybe_finalize_jump' of this case. Examine what
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4407 follows. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4408
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4409 /* If we're at the end of the pattern, we can change. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4410 if (p2 == pend)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4411 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4412 /* Consider what happens when matching ":$.*$"
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4413 against ":/". I don't really understand this code
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4414 yet. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4415 p[-3] = (unsigned char) pop_failure_jump;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4416 DEBUG_PRINT1
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4417 (" End of pattern: change to `pop_failure_jump'.\n");
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4418 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4419
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4420 else if ((re_opcode_t) *p2 == exactn
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4421 \|\| (bufp->newline_anchor && (re_opcode_t) *p2 == endline))
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4422 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4423 register unsigned char c
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4424 = *p2 == (unsigned char) endline ? '\n' : p2[2];
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4425
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4426 if ((re_opcode_t) p1[3] == exactn && p1[5] != c)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4427 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4428 p[-3] = (unsigned char) pop_failure_jump;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4429 DEBUG_PRINT3 (" %c != %c => pop_failure_jump.\n",
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4430 c, p1[5]);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4431 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4432
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4433 else if ((re_opcode_t) p1[3] == charset
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4434 \|\| (re_opcode_t) p1[3] == charset_not)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4435 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4436 int not = (re_opcode_t) p1[3] == charset_not;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4437
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4438 if (c < (unsigned char) (p1[4] * BYTEWIDTH)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4439 && p1[5 + c / BYTEWIDTH] & (1 << (c % BYTEWIDTH)))
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4440 not = !not;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4441
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4442 /* `not' is equal to 1 if c would match, which means
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4443 that we can't change to pop_failure_jump. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4444 if (!not)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4445 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4446 p[-3] = (unsigned char) pop_failure_jump;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4447 DEBUG_PRINT1 (" No match => pop_failure_jump.\n");
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4448 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4449 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4450 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4451 else if ((re_opcode_t) *p2 == charset)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4452 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4453 #ifdef DEBUG
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4454 register unsigned char c
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4455 = *p2 == (unsigned char) endline ? '\n' : p2[2];
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4456 #endif
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4457
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4458 if ((re_opcode_t) p1[3] == exactn
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4459 && ! ((int) p2[1] * BYTEWIDTH > (int) p1[4]
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4460 && (p2[1 + p1[4] / BYTEWIDTH]
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4461 & (1 << (p1[4] % BYTEWIDTH)))))
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4462 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4463 p[-3] = (unsigned char) pop_failure_jump;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4464 DEBUG_PRINT3 (" %c != %c => pop_failure_jump.\n",
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4465 c, p1[5]);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4466 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4467
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4468 else if ((re_opcode_t) p1[3] == charset_not)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4469 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4470 int idx;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4471 /* We win if the charset_not inside the loop
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4472 lists every character listed in the charset after. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4473 for (idx = 0; idx < (int) p2[1]; idx++)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4474 if (! (p2[2 + idx] == 0
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4475 \|\| (idx < (int) p1[4]
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4476 && ((p2[2 + idx] & ~ p1[5 + idx]) == 0))))
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4477 break;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4478
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4479 if (idx == p2[1])
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4480 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4481 p[-3] = (unsigned char) pop_failure_jump;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4482 DEBUG_PRINT1 (" No match => pop_failure_jump.\n");
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4483 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4484 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4485 else if ((re_opcode_t) p1[3] == charset)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4486 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4487 int idx;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4488 /* We win if the charset inside the loop
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4489 has no overlap with the one after the loop. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4490 for (idx = 0;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4491 idx < (int) p2[1] && idx < (int) p1[4];
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4492 idx++)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4493 if ((p2[2 + idx] & p1[5 + idx]) != 0)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4494 break;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4495
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4496 if (idx == p2[1] \|\| idx == p1[4])
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4497 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4498 p[-3] = (unsigned char) pop_failure_jump;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4499 DEBUG_PRINT1 (" No match => pop_failure_jump.\n");
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4500 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4501 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4502 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4503 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4504 p -= 2; /* Point at relative address again. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4505 if ((re_opcode_t) p[-1] != pop_failure_jump)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4506 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4507 p[-1] = (unsigned char) jump;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4508 DEBUG_PRINT1 (" Match => jump.\n");
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4509 goto unconditional_jump;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4510 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4511 /* Note fall through. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4512
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4513
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4514 /* The end of a simple repeat has a pop_failure_jump back to
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4515 its matching on_failure_jump, where the latter will push a
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4516 failure point. The pop_failure_jump takes off failure
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4517 points put on by this pop_failure_jump's matching
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4518 on_failure_jump; we got through the pattern to here from the
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4519 matching on_failure_jump, so didn't fail. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4520 case pop_failure_jump:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4521 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4522 /* We need to pass separate storage for the lowest and
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4523 highest registers, even though we don't care about the
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4524 actual values. Otherwise, we will restore only one
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4525 register from the stack, since lowest will == highest in
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4526 `pop_failure_point'. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4527 unsigned dummy_low_reg, dummy_high_reg;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4528 unsigned char *pdummy;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4529 const char *sdummy;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4530
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4531 DEBUG_PRINT1 ("EXECUTING pop_failure_jump.\n");
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4532 POP_FAILURE_POINT (sdummy, pdummy,
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4533 dummy_low_reg, dummy_high_reg,
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4534 reg_dummy, reg_dummy, reg_info_dummy);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4535 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4536 /* Note fall through. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4537
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4538
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4539 /* Unconditionally jump (without popping any failure points). */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4540 case jump:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4541 unconditional_jump:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4542 EXTRACT_NUMBER_AND_INCR (mcnt, p); /* Get the amount to jump. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4543 DEBUG_PRINT2 ("EXECUTING jump %d ", mcnt);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4544 p += mcnt; /* Do the jump. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4545 DEBUG_PRINT2 ("(to 0x%x).\n", p);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4546 break;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4547
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4548
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4549 /* We need this opcode so we can detect where alternatives end
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4550 in `group_match_null_string_p' et al. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4551 case jump_past_alt:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4552 DEBUG_PRINT1 ("EXECUTING jump_past_alt.\n");
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4553 goto unconditional_jump;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4554
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4555
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4556 /* Normally, the on_failure_jump pushes a failure point, which
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4557 then gets popped at pop_failure_jump. We will end up at
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4558 pop_failure_jump, also, and with a pattern of, say, `a+', we
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4559 are skipping over the on_failure_jump, so we have to push
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4560 something meaningless for pop_failure_jump to pop. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4561 case dummy_failure_jump:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4562 DEBUG_PRINT1 ("EXECUTING dummy_failure_jump.\n");
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4563 /* It doesn't matter what we push for the string here. What
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4564 the code at `fail' tests is the value for the pattern. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4565 PUSH_FAILURE_POINT (0, 0, -2);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4566 goto unconditional_jump;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4567
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4568
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4569 /* At the end of an alternative, we need to push a dummy failure
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4570 point in case we are followed by a `pop_failure_jump', because
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4571 we don't want the failure point for the alternative to be
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4572 popped. For example, matching `(a\|ab)*' against `aab'
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4573 requires that we match the `ab' alternative. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4574 case push_dummy_failure:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4575 DEBUG_PRINT1 ("EXECUTING push_dummy_failure.\n");
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4576 /* See comments just above at `dummy_failure_jump' about the
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4577 two zeroes. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4578 PUSH_FAILURE_POINT (0, 0, -2);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4579 break;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4580
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4581 /* Have to succeed matching what follows at least n times.
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4582 After that, handle like `on_failure_jump'. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4583 case succeed_n:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4584 EXTRACT_NUMBER (mcnt, p + 2);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4585 DEBUG_PRINT2 ("EXECUTING succeed_n %d.\n", mcnt);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4586
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4587 assert (mcnt >= 0);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4588 /* Originally, this is how many times we HAVE to succeed. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4589 if (mcnt > 0)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4590 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4591 mcnt--;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4592 p += 2;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4593 STORE_NUMBER_AND_INCR (p, mcnt);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4594 DEBUG_PRINT3 (" Setting 0x%x to %d.\n", p, mcnt);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4595 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4596 else if (mcnt == 0)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4597 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4598 DEBUG_PRINT2 (" Setting two bytes from 0x%x to no_op.\n", p+2);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4599 p[2] = (unsigned char) no_op;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4600 p[3] = (unsigned char) no_op;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4601 goto on_failure;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4602 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4603 break;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4604
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4605 case jump_n:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4606 EXTRACT_NUMBER (mcnt, p + 2);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4607 DEBUG_PRINT2 ("EXECUTING jump_n %d.\n", mcnt);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4608
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4609 /* Originally, this is how many times we CAN jump. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4610 if (mcnt)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4611 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4612 mcnt--;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4613 STORE_NUMBER (p + 2, mcnt);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4614 goto unconditional_jump;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4615 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4616 /* If don't have to jump any more, skip over the rest of command. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4617 else
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4618 p += 4;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4619 break;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4620
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4621 case set_number_at:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4622 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4623 DEBUG_PRINT1 ("EXECUTING set_number_at.\n");
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4624
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4625 EXTRACT_NUMBER_AND_INCR (mcnt, p);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4626 p1 = p + mcnt;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4627 EXTRACT_NUMBER_AND_INCR (mcnt, p);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4628 DEBUG_PRINT3 (" Setting 0x%x to %d.\n", p1, mcnt);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4629 STORE_NUMBER (p1, mcnt);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4630 break;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4631 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4632
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4633 case wordbound:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4634 DEBUG_PRINT1 ("EXECUTING wordbound.\n");
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4635 if (AT_WORD_BOUNDARY (d))
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4636 break;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4637 goto fail;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4638
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4639 case notwordbound:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4640 DEBUG_PRINT1 ("EXECUTING notwordbound.\n");
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4641 if (AT_WORD_BOUNDARY (d))
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4642 goto fail;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4643 break;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4644
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4645 case wordbeg:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4646 DEBUG_PRINT1 ("EXECUTING wordbeg.\n");
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4647 if (WORDCHAR_P (d) && (AT_STRINGS_BEG (d) \|\| !WORDCHAR_P (d - 1)))
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4648 break;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4649 goto fail;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4650
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4651 case wordend:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4652 DEBUG_PRINT1 ("EXECUTING wordend.\n");
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4653 if (!AT_STRINGS_BEG (d) && WORDCHAR_P (d - 1)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4654 && (!WORDCHAR_P (d) \|\| AT_STRINGS_END (d)))
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4655 break;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4656 goto fail;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4657
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4658 #ifdef emacs
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4659 case before_dot:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4660 DEBUG_PRINT1 ("EXECUTING before_dot.\n");
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4661 if (PTR_CHAR_POS ((unsigned char *) d) >= point)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4662 goto fail;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4663 break;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4664
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4665 case at_dot:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4666 DEBUG_PRINT1 ("EXECUTING at_dot.\n");
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4667 if (PTR_CHAR_POS ((unsigned char *) d) != point)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4668 goto fail;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4669 break;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4670
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4671 case after_dot:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4672 DEBUG_PRINT1 ("EXECUTING after_dot.\n");
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4673 if (PTR_CHAR_POS ((unsigned char *) d) <= point)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4674 goto fail;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4675 break;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4676 #if 0 /* not emacs19 */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4677 case at_dot:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4678 DEBUG_PRINT1 ("EXECUTING at_dot.\n");
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4679 if (PTR_CHAR_POS ((unsigned char *) d) + 1 != point)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4680 goto fail;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4681 break;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4682 #endif /* not emacs19 */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4683
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4684 case syntaxspec:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4685 DEBUG_PRINT2 ("EXECUTING syntaxspec %d.\n", mcnt);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4686 mcnt = *p++;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4687 goto matchsyntax;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4688
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4689 case wordchar:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4690 DEBUG_PRINT1 ("EXECUTING Emacs wordchar.\n");
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4691 mcnt = (int) Sword;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4692 matchsyntax:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4693 PREFETCH ();
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4694 /* Can't use d++ here; SYNTAX may be an unsafe macro. /
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4695 d++;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4696 if (SYNTAX (d[-1]) != (enum syntaxcode) mcnt)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4697 goto fail;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4698 SET_REGS_MATCHED ();
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4699 break;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4700
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4701 case notsyntaxspec:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4702 DEBUG_PRINT2 ("EXECUTING notsyntaxspec %d.\n", mcnt);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4703 mcnt = *p++;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4704 goto matchnotsyntax;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4705
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4706 case notwordchar:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4707 DEBUG_PRINT1 ("EXECUTING Emacs notwordchar.\n");
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4708 mcnt = (int) Sword;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4709 matchnotsyntax:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4710 PREFETCH ();
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4711 /* Can't use d++ here; SYNTAX may be an unsafe macro. /
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4712 d++;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4713 if (SYNTAX (d[-1]) == (enum syntaxcode) mcnt)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4714 goto fail;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4715 SET_REGS_MATCHED ();
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4716 break;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4717
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4718 #else /* not emacs */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4719 case wordchar:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4720 DEBUG_PRINT1 ("EXECUTING non-Emacs wordchar.\n");
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4721 PREFETCH ();
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4722 if (!WORDCHAR_P (d))
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4723 goto fail;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4724 SET_REGS_MATCHED ();
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4725 d++;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4726 break;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4727
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4728 case notwordchar:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4729 DEBUG_PRINT1 ("EXECUTING non-Emacs notwordchar.\n");
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4730 PREFETCH ();
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4731 if (WORDCHAR_P (d))
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4732 goto fail;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4733 SET_REGS_MATCHED ();
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4734 d++;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4735 break;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4736 #endif /* not emacs */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4737
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4738 default:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4739 abort ();
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4740 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4741 continue; /* Successfully executed one pattern command; keep going. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4742
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4743
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4744 /* We goto here if a matching operation fails. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4745 fail:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4746 if (!FAIL_STACK_EMPTY ())
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4747 { /* A restart point is known. Restore to that state. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4748 DEBUG_PRINT1 ("\nFAIL:\n");
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4749 POP_FAILURE_POINT (d, p,
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4750 lowest_active_reg, highest_active_reg,
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4751 regstart, regend, reg_info);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4752
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4753 /* If this failure point is a dummy, try the next one. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4754 if (!p)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4755 goto fail;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4756
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4757 /* If we failed to the end of the pattern, don't examine p. /
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4758 assert (p <= pend);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4759 if (p < pend)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4760 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4761 boolean is_a_jump_n = false;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4762
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4763 /* If failed to a backwards jump that's part of a repetition
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4764 loop, need to pop this failure point and use the next one. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4765 switch ((re_opcode_t) *p)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4766 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4767 case jump_n:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4768 is_a_jump_n = true;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4769 case maybe_pop_jump:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4770 case pop_failure_jump:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4771 case jump:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4772 p1 = p + 1;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4773 EXTRACT_NUMBER_AND_INCR (mcnt, p1);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4774 p1 += mcnt;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4775
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4776 if ((is_a_jump_n && (re_opcode_t) *p1 == succeed_n)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4777 \|\| (!is_a_jump_n
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4778 && (re_opcode_t) *p1 == on_failure_jump))
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4779 goto fail;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4780 break;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4781 default:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4782 /* do nothing */ ;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4783 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4784 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4785
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4786 if (d >= string1 && d <= end1)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4787 dend = end_match_1;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4788 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4789 else
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4790 break; /* Matching at this starting point really fails. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4791 } /* for (;;) */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4792
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4793 if (best_regs_set)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4794 goto restore_best_regs;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4795
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4796 FREE_VARIABLES ();
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4797
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4798 return -1; /* Failure to match. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4799 } /* re_match_2 */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4800
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4801 /* Subroutine definitions for re_match_2. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4802
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4803
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4804 /* We are passed P pointing to a register number after a start_memory.
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4805
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4806 Return true if the pattern up to the corresponding stop_memory can
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4807 match the empty string, and false otherwise.
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4808
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4809 If we find the matching stop_memory, sets P to point to one past its number.
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4810 Otherwise, sets P to an undefined byte less than or equal to END.
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4811
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4812 We don't handle duplicates properly (yet). */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4813
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4814 static boolean
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4815 group_match_null_string_p (p, end, reg_info)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4816 unsigned char *p, end;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4817 register_info_type *reg_info;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4818 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4819 int mcnt;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4820 /* Point to after the args to the start_memory. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4821 unsigned char p1 = p + 2;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4822
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4823 while (p1 < end)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4824 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4825 /* Skip over opcodes that can match nothing, and return true or
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4826 false, as appropriate, when we get to one that can't, or to the
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4827 matching stop_memory. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4828
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4829 switch ((re_opcode_t) *p1)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4830 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4831 /* Could be either a loop or a series of alternatives. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4832 case on_failure_jump:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4833 p1++;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4834 EXTRACT_NUMBER_AND_INCR (mcnt, p1);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4835
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4836 /* If the next operation is not a jump backwards in the
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4837 pattern. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4838
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4839 if (mcnt >= 0)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4840 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4841 /* Go through the on_failure_jumps of the alternatives,
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4842 seeing if any of the alternatives cannot match nothing.
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4843 The last alternative starts with only a jump,
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4844 whereas the rest start with on_failure_jump and end
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4845 with a jump, e.g., here is the pattern for `a\|b\|c':
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4846
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4847 /on_failure_jump/0/6/exactn/1/a/jump_past_alt/0/6
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4848 /on_failure_jump/0/6/exactn/1/b/jump_past_alt/0/3
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4849 /exactn/1/c
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4850
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4851 So, we have to first go through the first (n-1)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4852 alternatives and then deal with the last one separately. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4853
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4854
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4855 /* Deal with the first (n-1) alternatives, which start
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4856 with an on_failure_jump (see above) that jumps to right
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4857 past a jump_past_alt. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4858
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4859 while ((re_opcode_t) p1[mcnt-3] == jump_past_alt)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4860 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4861 /* `mcnt' holds how many bytes long the alternative
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4862 is, including the ending `jump_past_alt' and
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4863 its number. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4864
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4865 if (!alt_match_null_string_p (p1, p1 + mcnt - 3,
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4866 reg_info))
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4867 return false;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4868
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4869 /* Move to right after this alternative, including the
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4870 jump_past_alt. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4871 p1 += mcnt;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4872
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4873 /* Break if it's the beginning of an n-th alternative
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4874 that doesn't begin with an on_failure_jump. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4875 if ((re_opcode_t) *p1 != on_failure_jump)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4876 break;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4877
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4878 /* Still have to check that it's not an n-th
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4879 alternative that starts with an on_failure_jump. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4880 p1++;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4881 EXTRACT_NUMBER_AND_INCR (mcnt, p1);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4882 if ((re_opcode_t) p1[mcnt-3] != jump_past_alt)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4883 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4884 /* Get to the beginning of the n-th alternative. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4885 p1 -= 3;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4886 break;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4887 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4888 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4889
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4890 /* Deal with the last alternative: go back and get number
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4891 of the `jump_past_alt' just before it. `mcnt' contains
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4892 the length of the alternative. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4893 EXTRACT_NUMBER (mcnt, p1 - 2);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4894
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4895 if (!alt_match_null_string_p (p1, p1 + mcnt, reg_info))
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4896 return false;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4897
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4898 p1 += mcnt; /* Get past the n-th alternative. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4899 } /* if mcnt > 0 */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4900 break;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4901
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4902
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4903 case stop_memory:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4904 assert (p1[1] == **p);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4905 *p = p1 + 2;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4906 return true;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4907
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4908
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4909 default:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4910 if (!common_op_match_null_string_p (&p1, end, reg_info))
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4911 return false;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4912 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4913 } /* while p1 < end */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4914
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4915 return false;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4916 } /* group_match_null_string_p */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4917
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4918
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4919 /* Similar to group_match_null_string_p, but doesn't deal with alternatives:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4920 It expects P to be the first byte of a single alternative and END one
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4921 byte past the last. The alternative can contain groups. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4922
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4923 static boolean
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4924 alt_match_null_string_p (p, end, reg_info)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4925 unsigned char p, end;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4926 register_info_type *reg_info;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4927 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4928 int mcnt;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4929 unsigned char *p1 = p;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4930
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4931 while (p1 < end)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4932 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4933 /* Skip over opcodes that can match nothing, and break when we get
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4934 to one that can't. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4935
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4936 switch ((re_opcode_t) *p1)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4937 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4938 /* It's a loop. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4939 case on_failure_jump:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4940 p1++;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4941 EXTRACT_NUMBER_AND_INCR (mcnt, p1);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4942 p1 += mcnt;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4943 break;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4944
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4945 default:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4946 if (!common_op_match_null_string_p (&p1, end, reg_info))
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4947 return false;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4948 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4949 } /* while p1 < end */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4950
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4951 return true;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4952 } /* alt_match_null_string_p */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4953
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4954
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4955 /* Deals with the ops common to group_match_null_string_p and
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4956 alt_match_null_string_p.
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4957
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4958 Sets P to one after the op and its arguments, if any. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4959
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4960 static boolean
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4961 common_op_match_null_string_p (p, end, reg_info)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4962 unsigned char *p, end;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4963 register_info_type *reg_info;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4964 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4965 int mcnt;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4966 boolean ret;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4967 int reg_no;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4968 unsigned char p1 = p;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4969
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4970 switch ((re_opcode_t) *p1++)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4971 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4972 case no_op:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4973 case begline:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4974 case endline:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4975 case begbuf:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4976 case endbuf:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4977 case wordbeg:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4978 case wordend:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4979 case wordbound:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4980 case notwordbound:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4981 #ifdef emacs
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4982 case before_dot:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4983 case at_dot:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4984 case after_dot:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4985 #endif
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4986 break;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4987
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4988 case start_memory:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4989 reg_no = *p1;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4990 assert (reg_no > 0 && reg_no <= MAX_REGNUM);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4991 ret = group_match_null_string_p (&p1, end, reg_info);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4992
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4993 /* Have to set this here in case we're checking a group which
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4994 contains a group and a back reference to it. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4995
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4996 if (REG_MATCH_NULL_STRING_P (reg_info[reg_no]) == MATCH_NULL_UNSET_VALUE)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4997 REG_MATCH_NULL_STRING_P (reg_info[reg_no]) = ret;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4998
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	4999 if (!ret)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5000 return false;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5001 break;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5002
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5003 /* If this is an optimized succeed_n for zero times, make the jump. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5004 case jump:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5005 EXTRACT_NUMBER_AND_INCR (mcnt, p1);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5006 if (mcnt >= 0)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5007 p1 += mcnt;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5008 else
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5009 return false;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5010 break;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5011
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5012 case succeed_n:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5013 /* Get to the number of times to succeed. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5014 p1 += 2;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5015 EXTRACT_NUMBER_AND_INCR (mcnt, p1);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5016
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5017 if (mcnt == 0)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5018 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5019 p1 -= 4;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5020 EXTRACT_NUMBER_AND_INCR (mcnt, p1);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5021 p1 += mcnt;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5022 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5023 else
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5024 return false;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5025 break;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5026
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5027 case duplicate:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5028 if (!REG_MATCH_NULL_STRING_P (reg_info[*p1]))
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5029 return false;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5030 break;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5031
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5032 case set_number_at:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5033 p1 += 4;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5034
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5035 default:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5036 /* All other opcodes mean we cannot match the empty string. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5037 return false;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5038 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5039
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5040 *p = p1;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5041 return true;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5042 } /* common_op_match_null_string_p */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5043
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5044
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5045 /* Return zero if TRANSLATE[S1] and TRANSLATE[S2] are identical for LEN
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5046 bytes; nonzero otherwise. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5047
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5048 static int
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5049 bcmp_translate (s1, s2, len, translate)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5050 unsigned char s1, s2;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5051 register int len;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5052 char *translate;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5053 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5054 register unsigned char p1 = s1, p2 = s2;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5055 while (len)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5056 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5057 if (translate[p1++] != translate[p2++]) return 1;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5058 len--;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5059 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5060 return 0;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5061 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5062
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5063 /* Entry points for GNU code. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5064
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5065 /* re_compile_pattern is the GNU regular expression compiler: it
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5066 compiles PATTERN (of length SIZE) and puts the result in BUFP.
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5067 Returns 0 if the pattern was valid, otherwise an error string.
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5068
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5069 Assumes the `allocated' (and perhaps `buffer') and `translate' fields
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5070 are set in BUFP on entry.
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5071
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5072 We call regex_compile to do the actual compilation. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5073
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5074 const char *
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5075 re_compile_pattern (pattern, length, bufp)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5076 const char *pattern;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5077 int length;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5078 struct re_pattern_buffer *bufp;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5079 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5080 reg_errcode_t ret;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5081
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5082 /* GNU code is written to assume at least RE_NREGS registers will be set
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5083 (and at least one extra will be -1). */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5084 bufp->regs_allocated = REGS_UNALLOCATED;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5085
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5086 /* And GNU code determines whether or not to get register information
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5087 by passing null for the REGS argument to re_match, etc., not by
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5088 setting no_sub. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5089 bufp->no_sub = 0;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5090
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5091 /* Match anchors at newline. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5092 bufp->newline_anchor = 1;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5093
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5094 ret = regex_compile (pattern, length, re_syntax_options, bufp);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5095
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5096 if (!ret)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5097 return NULL;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5098 return gettext (re_error_msgid[(int) ret]);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5099 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5100
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5101 /* Entry points compatible with 4.2 BSD regex library. We don't define
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5102 them unless specifically requested. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5103
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5104 #ifdef _REGEX_RE_COMP
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5105
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5106 /* BSD has one and only one pattern buffer. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5107 static struct re_pattern_buffer re_comp_buf;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5108
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5109 char *
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5110 re_comp (s)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5111 const char *s;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5112 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5113 reg_errcode_t ret;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5114
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5115 if (!s)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5116 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5117 if (!re_comp_buf.buffer)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5118 return gettext ("No previous regular expression");
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5119 return 0;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5120 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5121
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5122 if (!re_comp_buf.buffer)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5123 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5124 re_comp_buf.buffer = (unsigned char *) malloc (200);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5125 if (re_comp_buf.buffer == NULL)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5126 return gettext (re_error_msgid[(int) REG_ESPACE]);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5127 re_comp_buf.allocated = 200;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5128
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5129 re_comp_buf.fastmap = (char *) malloc (1 << BYTEWIDTH);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5130 if (re_comp_buf.fastmap == NULL)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5131 return gettext (re_error_msgid[(int) REG_ESPACE]);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5132 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5133
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5134 /* Since `re_exec' always passes NULL for the `regs' argument, we
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5135 don't need to initialize the pattern buffer fields which affect it. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5136
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5137 /* Match anchors at newlines. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5138 re_comp_buf.newline_anchor = 1;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5139
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5140 ret = regex_compile (s, strlen (s), re_syntax_options, &re_comp_buf);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5141
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5142 if (!ret)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5143 return NULL;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5144
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5145 /* Yes, we're discarding `const' here if !HAVE_LIBINTL. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5146 return (char *) gettext (re_error_msgid[(int) ret]);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5147 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5148
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5149
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5150 int
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5151 re_exec (s)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5152 const char *s;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5153 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5154 const int len = strlen (s);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5155 return
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5156 0 <= re_search (&re_comp_buf, s, len, 0, len, (struct re_registers *) 0);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5157 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5158 #endif /* _REGEX_RE_COMP */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5159
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5160 /* POSIX.2 functions. Don't define these for Emacs. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5161
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5162 #ifndef emacs
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5163
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5164 /* regcomp takes a regular expression as a string and compiles it.
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5165
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5166 PREG is a regex_t *. We do not expect any fields to be initialized,
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5167 since POSIX says we shouldn't. Thus, we set
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5168
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5169 `buffer' to the compiled pattern;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5170 `used' to the length of the compiled pattern;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5171 `syntax' to RE_SYNTAX_POSIX_EXTENDED if the
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5172 REG_EXTENDED bit in CFLAGS is set; otherwise, to
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5173 RE_SYNTAX_POSIX_BASIC;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5174 `newline_anchor' to REG_NEWLINE being set in CFLAGS;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5175 `fastmap' and `fastmap_accurate' to zero;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5176 `re_nsub' to the number of subexpressions in PATTERN.
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5177
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5178 PATTERN is the address of the pattern string.
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5179
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5180 CFLAGS is a series of bits which affect compilation.
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5181
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5182 If REG_EXTENDED is set, we use POSIX extended syntax; otherwise, we
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5183 use POSIX basic syntax.
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5184
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5185 If REG_NEWLINE is set, then . and [^...] don't match newline.
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5186 Also, regexec will try a match beginning after every newline.
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5187
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5188 If REG_ICASE is set, then we considers upper- and lowercase
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5189 versions of letters to be equivalent when matching.
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5190
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5191 If REG_NOSUB is set, then when PREG is passed to regexec, that
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5192 routine will report only success or failure, and nothing about the
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5193 registers.
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5194
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5195 It returns 0 if it succeeds, nonzero if it doesn't. (See regex.h for
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5196 the return codes and their meanings.) */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5197
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5198 int
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5199 regcomp (preg, pattern, cflags)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5200 regex_t *preg;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5201 const char *pattern;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5202 int cflags;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5203 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5204 reg_errcode_t ret;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5205 unsigned syntax
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5206 = (cflags & REG_EXTENDED) ?
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5207 RE_SYNTAX_POSIX_EXTENDED : RE_SYNTAX_POSIX_BASIC;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5208
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5209 /* regex_compile will allocate the space for the compiled pattern. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5210 preg->buffer = 0;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5211 preg->allocated = 0;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5212 preg->used = 0;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5213
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5214 /* Don't bother to use a fastmap when searching. This simplifies the
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5215 REG_NEWLINE case: if we used a fastmap, we'd have to put all the
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5216 characters after newlines into the fastmap. This way, we just try
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5217 every character. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5218 preg->fastmap = 0;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5219
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5220 if (cflags & REG_ICASE)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5221 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5222 unsigned i;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5223
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5224 preg->translate = (char *) malloc (CHAR_SET_SIZE);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5225 if (preg->translate == NULL)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5226 return (int) REG_ESPACE;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5227
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5228 /* Map uppercase characters to corresponding lowercase ones. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5229 for (i = 0; i < CHAR_SET_SIZE; i++)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5230 preg->translate[i] = ISUPPER (i) ? tolower (i) : i;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5231 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5232 else
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5233 preg->translate = NULL;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5234
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5235 /* If REG_NEWLINE is set, newlines are treated differently. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5236 if (cflags & REG_NEWLINE)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5237 { /* REG_NEWLINE implies neither . nor [^...] match newline. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5238 syntax &= ~RE_DOT_NEWLINE;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5239 syntax \|= RE_HAT_LISTS_NOT_NEWLINE;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5240 /* It also changes the matching behavior. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5241 preg->newline_anchor = 1;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5242 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5243 else
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5244 preg->newline_anchor = 0;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5245
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5246 preg->no_sub = !!(cflags & REG_NOSUB);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5247
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5248 /* POSIX says a null character in the pattern terminates it, so we
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5249 can use strlen here in compiling the pattern. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5250 ret = regex_compile (pattern, strlen (pattern), syntax, preg);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5251
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5252 /* POSIX doesn't distinguish between an unmatched open-group and an
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5253 unmatched close-group: both are REG_EPAREN. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5254 if (ret == REG_ERPAREN) ret = REG_EPAREN;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5255
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5256 return (int) ret;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5257 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5258
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5259
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5260 /* regexec searches for a given pattern, specified by PREG, in the
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5261 string STRING.
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5262
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5263 If NMATCH is zero or REG_NOSUB was set in the cflags argument to
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5264 `regcomp', we ignore PMATCH. Otherwise, we assume PMATCH has at
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5265 least NMATCH elements, and we set them to the offsets of the
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5266 corresponding matched substrings.
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5267
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5268 EFLAGS specifies `execution flags' which affect matching: if
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5269 REG_NOTBOL is set, then ^ does not match at the beginning of the
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5270 string; if REG_NOTEOL is set, then $ does not match at the end.
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5271
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5272 We return 0 if we find a match and REG_NOMATCH if not. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5273
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5274 int
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5275 regexec (preg, string, nmatch, pmatch, eflags)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5276 const regex_t *preg;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5277 const char *string;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5278 size_t nmatch;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5279 regmatch_t pmatch[];
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5280 int eflags;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5281 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5282 int ret;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5283 struct re_registers regs;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5284 regex_t private_preg;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5285 int len = strlen (string);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5286 boolean want_reg_info = !preg->no_sub && nmatch > 0;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5287
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5288 private_preg = *preg;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5289
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5290 private_preg.not_bol = !!(eflags & REG_NOTBOL);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5291 private_preg.not_eol = !!(eflags & REG_NOTEOL);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5292
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5293 /* The user has told us exactly how many registers to return
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5294 information about, via `nmatch'. We have to pass that on to the
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5295 matching routines. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5296 private_preg.regs_allocated = REGS_FIXED;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5297
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5298 if (want_reg_info)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5299 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5300 regs.num_regs = nmatch;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5301 regs.start = TALLOC (nmatch, regoff_t);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5302 regs.end = TALLOC (nmatch, regoff_t);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5303 if (regs.start == NULL \|\| regs.end == NULL)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5304 return (int) REG_NOMATCH;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5305 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5306
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5307 /* Perform the searching operation. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5308 ret = re_search (&private_preg, string, len,
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5309 /* start: / 0, / range: */ len,
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5310 want_reg_info ? &regs : (struct re_registers *) 0);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5311
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5312 /* Copy the register information to the POSIX structure. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5313 if (want_reg_info)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5314 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5315 if (ret >= 0)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5316 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5317 unsigned r;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5318
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5319 for (r = 0; r < nmatch; r++)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5320 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5321 pmatch[r].rm_so = regs.start[r];
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5322 pmatch[r].rm_eo = regs.end[r];
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5323 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5324 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5325
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5326 /* If we needed the temporary register info, free the space now. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5327 free (regs.start);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5328 free (regs.end);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5329 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5330
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5331 /* We want zero return to mean success, unlike `re_search'. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5332 return ret >= 0 ? (int) REG_NOERROR : (int) REG_NOMATCH;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5333 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5334
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5335
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5336 /* Returns a message corresponding to an error code, ERRCODE, returned
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5337 from either regcomp or regexec. We don't use PREG here. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5338
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5339 size_t
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5340 regerror (errcode, preg, errbuf, errbuf_size)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5341 int errcode;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5342 const regex_t *preg;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5343 char *errbuf;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5344 size_t errbuf_size;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5345 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5346 const char *msg;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5347 size_t msg_size;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5348
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5349 if (errcode < 0
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5350 \|\| errcode >= (sizeof (re_error_msgid) / sizeof (re_error_msgid[0])))
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5351 /* Only error codes returned by the rest of the code should be passed
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5352 to this routine. If we are given anything else, or if other regex
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5353 code generates an invalid error code, then the program has a bug.
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5354 Dump core so we can fix it. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5355 abort ();
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5356
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5357 msg = gettext (re_error_msgid[errcode]);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5358
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5359 msg_size = strlen (msg) + 1; /* Includes the null. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5360
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5361 if (errbuf_size != 0)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5362 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5363 if (msg_size > errbuf_size)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5364 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5365 strncpy (errbuf, msg, errbuf_size - 1);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5366 errbuf[errbuf_size - 1] = 0;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5367 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5368 else
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5369 strcpy (errbuf, msg);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5370 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5371
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5372 return msg_size;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5373 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5374
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5375
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5376 /* Free dynamically allocated space used by PREG. */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5377
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5378 void
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5379 regfree (preg)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5380 regex_t *preg;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5381 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5382 if (preg->buffer != NULL)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5383 free (preg->buffer);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5384 preg->buffer = NULL;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5385
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5386 preg->allocated = 0;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5387 preg->used = 0;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5388
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5389 if (preg->fastmap != NULL)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5390 free (preg->fastmap);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5391 preg->fastmap = NULL;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5392 preg->fastmap_accurate = 0;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5393
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5394 if (preg->translate != NULL)
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5395 free (preg->translate);
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5396 preg->translate = NULL;
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5397 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5398
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5399 #endif /* not emacs */
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5400
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5401 /*
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5402 Local variables:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5403 make-backup-files: t
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5404 version-control: t
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5405 trim-versions-without-asking: nil
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5406 End:
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc. Roland McGrath <roland@gnu.org> parents: 438 diff changeset	5407 */

Mercurial > hg > octave-lojdl > gnulib-hg

annotate regex.c @ 460:ea133fff5811