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annotate regex.c @ 2581:34ebbdf4dda0

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(MAKE_CHAR) [!emacs]: Dummy macro for non-Emacs env. (regex_compile): Fix the code for handling the case of single byte char and multibyte char being mixed in a range within [...].
author Kenichi Handa <handa@m17n.org>
date Sat, 10 Jun 2000 08:04:33 +0000
parents b341325934ed
children 31b85fc23c04
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 /* Extended regular expression matching and search library, version
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2 0.12. (Implements POSIX draft P10003.2/D11.2, except for
2
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3 internationalization features.)
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4
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5 Copyright (C) 1993,94,95,96,97,98,2000 Free Software Foundation, Inc.
2
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6
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7 This program is free software; you can redistribute it and/or modify
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8 it under the terms of the GNU General Public License as published by
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9 the Free Software Foundation; either version 2, or (at your option)
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10 any later version.
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11
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12 This program is distributed in the hope that it will be useful,
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13 but WITHOUT ANY WARRANTY; without even the implied warranty of
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14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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15 GNU General Public License for more details.
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16
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17 You should have received a copy of the GNU General Public License
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18 along with this program; if not, write to the Free Software
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19 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
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20 USA. */
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21
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22 /* TODO:
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23 - structure the opcode space into opcode+flag.
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24 - merge with glibc's regex.[ch]
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25 */
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26
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27 /* AIX requires this to be the first thing in the file. */
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28 #if defined (_AIX) && !defined (REGEX_MALLOC)
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29 #pragma alloca
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30 #endif
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31
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32 #undef _GNU_SOURCE
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33 #define _GNU_SOURCE
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34
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35 #ifdef emacs
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36 /* Converts the pointer to the char to BEG-based offset from the start. */
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37 #define PTR_TO_OFFSET(d) POS_AS_IN_BUFFER (POINTER_TO_OFFSET (d))
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38 #define POS_AS_IN_BUFFER(p) ((p) + (NILP (re_match_object) || BUFFERP (re_match_object)))
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39 #endif
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41 #ifdef HAVE_CONFIG_H
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42 #include <config.h>
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43 #endif
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45 /* We need this for `regex.h', and perhaps for the Emacs include files. */
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46 #include <sys/types.h>
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48 /* This is for other GNU distributions with internationalized messages. */
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49 #if HAVE_LIBINTL_H || defined (_LIBC)
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50 # include <libintl.h>
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51 #else
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52 # define gettext(msgid) (msgid)
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53 #endif
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54
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55 #ifndef gettext_noop
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56 /* This define is so xgettext can find the internationalizable
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57 strings. */
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58 #define gettext_noop(String) String
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59 #endif
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60
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61 /* The `emacs' switch turns on certain matching commands
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62 that make sense only in Emacs. */
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63 #ifdef emacs
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64
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65 #include "lisp.h"
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66 #include "buffer.h"
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67
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68 /* Make syntax table lookup grant data in gl_state. */
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69 #define SYNTAX_ENTRY_VIA_PROPERTY
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70
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71 #include "syntax.h"
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72 #include "charset.h"
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73 #include "category.h"
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74
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75 #define malloc xmalloc
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76 #define realloc xrealloc
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77 #define free xfree
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78
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79 #define RE_MULTIBYTE_P(bufp) ((bufp)->multibyte)
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80 #define RE_STRING_CHAR(p, s) \
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81 (multibyte ? (STRING_CHAR (p, s)) : (*(p)))
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82 #define RE_STRING_CHAR_AND_LENGTH(p, s, len) \
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83 (multibyte ? (STRING_CHAR_AND_LENGTH (p, s, len)) : ((len) = 1, *(p)))
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84
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85 /* Set C a (possibly multibyte) character before P. P points into a
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86 string which is the virtual concatenation of STR1 (which ends at
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87 END1) or STR2 (which ends at END2). */
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88 #define GET_CHAR_BEFORE_2(c, p, str1, end1, str2, end2) \
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89 do { \
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90 if (multibyte) \
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91 { \
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92 re_char *dtemp = (p) == (str2) ? (end1) : (p); \
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93 re_char *dlimit = ((p) > (str2) && (p) <= (end2)) ? (str2) : (str1); \
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94 while (dtemp-- > dlimit && !CHAR_HEAD_P (*dtemp)); \
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95 c = STRING_CHAR (dtemp, (p) - dtemp); \
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96 } \
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97 else \
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98 (c = ((p) == (str2) ? (end1) : (p))[-1]); \
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99 } while (0)
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100
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101
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102 #else /* not emacs */
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103
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104 /* If we are not linking with Emacs proper,
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105 we can't use the relocating allocator
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106 even if config.h says that we can. */
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107 #undef REL_ALLOC
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108
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109 #if defined (STDC_HEADERS) || defined (_LIBC)
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110 #include <stdlib.h>
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111 #else
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112 char *malloc ();
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113 char *realloc ();
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114 #endif
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115
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116 /* When used in Emacs's lib-src, we need to get bzero and bcopy somehow.
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117 If nothing else has been done, use the method below. */
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118 #ifdef INHIBIT_STRING_HEADER
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119 #if !(defined (HAVE_BZERO) && defined (HAVE_BCOPY))
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120 #if !defined (bzero) && !defined (bcopy)
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121 #undef INHIBIT_STRING_HEADER
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diff changeset
122 #endif
b08ce70c8b7c Undefined INHIBIT_STRING_HEADER when we have no
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123 #endif
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124 #endif
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125
b08ce70c8b7c Undefined INHIBIT_STRING_HEADER when we have no
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diff changeset
126 /* This is the normal way of making sure we have a bcopy and a bzero.
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diff changeset
127 This is used in most programs--a few other programs avoid this
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diff changeset
128 by defining INHIBIT_STRING_HEADER. */
441
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diff changeset
129 #ifndef INHIBIT_STRING_HEADER
460
ea133fff5811 Use `defined' to test HAVE_STRING_H and STDC_HEADERS.
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diff changeset
130 #if defined (HAVE_STRING_H) || defined (STDC_HEADERS) || defined (_LIBC)
441
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diff changeset
131 #include <string.h>
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132 #ifndef bcmp
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diff changeset
133 #define bcmp(s1, s2, n) memcmp ((s1), (s2), (n))
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134 #endif
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135 #ifndef bcopy
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diff changeset
136 #define bcopy(s, d, n) memcpy ((d), (s), (n))
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137 #endif
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138 #ifndef bzero
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139 #define bzero(s, n) memset ((s), 0, (n))
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140 #endif
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diff changeset
141 #else
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142 #include <strings.h>
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143 #endif
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144 #endif
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145
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diff changeset
146 /* Define the syntax stuff for \<, \>, etc. */
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147
2359
dbf725277cfc (enum syntaxcode): Provide default for non-Emacs.
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diff changeset
148 /* Sword must be nonzero for the wordchar pattern commands in re_match_2. */
dbf725277cfc (enum syntaxcode): Provide default for non-Emacs.
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diff changeset
149 enum syntaxcode { Swhitespace = 0, Sword = 1 };
441
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150
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diff changeset
151 #ifdef SWITCH_ENUM_BUG
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152 #define SWITCH_ENUM_CAST(x) ((int)(x))
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diff changeset
153 #else
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diff changeset
154 #define SWITCH_ENUM_CAST(x) (x)
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diff changeset
155 #endif
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diff changeset
156
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diff changeset
157 #ifdef SYNTAX_TABLE
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158
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diff changeset
159 extern char *re_syntax_table;
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160
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diff changeset
161 #else /* not SYNTAX_TABLE */
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162
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163 /* How many characters in the character set. */
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164 #define CHAR_SET_SIZE 256
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165
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diff changeset
166 static char re_syntax_table[CHAR_SET_SIZE];
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167
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168 static void
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diff changeset
169 init_syntax_once ()
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170 {
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171 register int c;
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diff changeset
172 static int done = 0;
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173
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174 if (done)
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175 return;
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176
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177 bzero (re_syntax_table, sizeof re_syntax_table);
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178
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diff changeset
179 for (c = 'a'; c <= 'z'; c++)
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180 re_syntax_table[c] = Sword;
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181
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diff changeset
182 for (c = 'A'; c <= 'Z'; c++)
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183 re_syntax_table[c] = Sword;
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184
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diff changeset
185 for (c = '0'; c <= '9'; c++)
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diff changeset
186 re_syntax_table[c] = Sword;
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187
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188 re_syntax_table['_'] = Sword;
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189
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190 done = 1;
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191 }
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diff changeset
192
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193 #endif /* not SYNTAX_TABLE */
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194
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195 #define SYNTAX(c) re_syntax_table[c]
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196
1296
7b938cc81ae2 (compile_range): Unused function deleted.
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diff changeset
197 /* Dummy macros for non-Emacs environments. */
939
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
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198 #define BASE_LEADING_CODE_P(c) (0)
2356
d93889e88226 (CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
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diff changeset
199 #define CHAR_CHARSET(c) 0
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200 #define CHARSET_LEADING_CODE_BASE(c) 0
2375
f25b865f900c * regex.c (PTR_TO_OFFSET) [!emacs]: Remove.
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diff changeset
201 #define MAX_MULTIBYTE_LENGTH 1
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diff changeset
202 #define RE_MULTIBYTE_P(x) 0
939
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
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diff changeset
203 #define WORD_BOUNDARY_P(c1, c2) (0)
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diff changeset
204 #define CHAR_HEAD_P(p) (1)
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diff changeset
205 #define SINGLE_BYTE_CHAR_P(c) (1)
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diff changeset
206 #define SAME_CHARSET_P(c1, c2) (1)
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diff changeset
207 #define MULTIBYTE_FORM_LENGTH(p, s) (1)
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diff changeset
208 #define STRING_CHAR(p, s) (*(p))
2355
0786b40fdf1c (RE_STRING_CHAR): New macro.
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diff changeset
209 #define RE_STRING_CHAR STRING_CHAR
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f25b865f900c * regex.c (PTR_TO_OFFSET) [!emacs]: Remove.
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diff changeset
210 #define CHAR_STRING(c, s) (*(s) = (c), 1)
939
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
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diff changeset
211 #define STRING_CHAR_AND_LENGTH(p, s, actual_len) ((actual_len) = 1, *(p))
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f25b865f900c * regex.c (PTR_TO_OFFSET) [!emacs]: Remove.
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diff changeset
212 #define RE_STRING_CHAR_AND_LENGTH STRING_CHAR_AND_LENGTH
939
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
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diff changeset
213 #define GET_CHAR_BEFORE_2(c, p, str1, end1, str2, end2) \
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diff changeset
214 (c = ((p) == (str2) ? *((end1) - 1) : *((p) - 1)))
2581
34ebbdf4dda0 (MAKE_CHAR) [!emacs]: Dummy macro for non-Emacs env.
Kenichi Handa <handa@m17n.org>
parents: 2551
diff changeset
215 #define MAKE_CHAR(charset, c1, c2) (c1)
441
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diff changeset
216 #endif /* not emacs */
2355
0786b40fdf1c (RE_STRING_CHAR): New macro.
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diff changeset
217
0786b40fdf1c (RE_STRING_CHAR): New macro.
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diff changeset
218 #ifndef RE_TRANSLATE
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diff changeset
219 #define RE_TRANSLATE(TBL, C) ((unsigned char)(TBL)[C])
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diff changeset
220 #define RE_TRANSLATE_P(TBL) (TBL)
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diff changeset
221 #endif
441
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diff changeset
222
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diff changeset
223 /* Get the interface, including the syntax bits. */
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diff changeset
224 #include "regex.h"
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diff changeset
225
1965
058a9ce57dd7 1999-09-04 Richard Stallman <rms@gnu.org>
Dave Love <fx@gnu.org>
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diff changeset
226 /* isalpha etc. are used for the character classes. */
058a9ce57dd7 1999-09-04 Richard Stallman <rms@gnu.org>
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diff changeset
227 #include <ctype.h>
058a9ce57dd7 1999-09-04 Richard Stallman <rms@gnu.org>
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diff changeset
228
058a9ce57dd7 1999-09-04 Richard Stallman <rms@gnu.org>
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parents: 1933
diff changeset
229 #ifdef emacs
058a9ce57dd7 1999-09-04 Richard Stallman <rms@gnu.org>
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diff changeset
230
058a9ce57dd7 1999-09-04 Richard Stallman <rms@gnu.org>
Dave Love <fx@gnu.org>
parents: 1933
diff changeset
231 /* 1 if C is an ASCII character. */
058a9ce57dd7 1999-09-04 Richard Stallman <rms@gnu.org>
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diff changeset
232 #define IS_REAL_ASCII(c) ((c) < 0200)
058a9ce57dd7 1999-09-04 Richard Stallman <rms@gnu.org>
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diff changeset
233
058a9ce57dd7 1999-09-04 Richard Stallman <rms@gnu.org>
Dave Love <fx@gnu.org>
parents: 1933
diff changeset
234 /* 1 if C is a unibyte character. */
058a9ce57dd7 1999-09-04 Richard Stallman <rms@gnu.org>
Dave Love <fx@gnu.org>
parents: 1933
diff changeset
235 #define ISUNIBYTE(c) (SINGLE_BYTE_CHAR_P ((c)))
058a9ce57dd7 1999-09-04 Richard Stallman <rms@gnu.org>
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diff changeset
236
058a9ce57dd7 1999-09-04 Richard Stallman <rms@gnu.org>
Dave Love <fx@gnu.org>
parents: 1933
diff changeset
237 /* The Emacs definitions should not be directly affected by locales. */
058a9ce57dd7 1999-09-04 Richard Stallman <rms@gnu.org>
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diff changeset
238
058a9ce57dd7 1999-09-04 Richard Stallman <rms@gnu.org>
Dave Love <fx@gnu.org>
parents: 1933
diff changeset
239 /* In Emacs, these are only used for single-byte characters. */
058a9ce57dd7 1999-09-04 Richard Stallman <rms@gnu.org>
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parents: 1933
diff changeset
240 #define ISDIGIT(c) ((c) >= '0' && (c) <= '9')
058a9ce57dd7 1999-09-04 Richard Stallman <rms@gnu.org>
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parents: 1933
diff changeset
241 #define ISCNTRL(c) ((c) < ' ')
058a9ce57dd7 1999-09-04 Richard Stallman <rms@gnu.org>
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parents: 1933
diff changeset
242 #define ISXDIGIT(c) (((c) >= '0' && (c) <= '9') \
058a9ce57dd7 1999-09-04 Richard Stallman <rms@gnu.org>
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parents: 1933
diff changeset
243 || ((c) >= 'a' && (c) <= 'f') \
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diff changeset
244 || ((c) >= 'A' && (c) <= 'F'))
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parents: 1933
diff changeset
245
058a9ce57dd7 1999-09-04 Richard Stallman <rms@gnu.org>
Dave Love <fx@gnu.org>
parents: 1933
diff changeset
246 /* This is only used for single-byte characters. */
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247 #define ISBLANK(c) ((c) == ' ' || (c) == '\t')
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248
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249 /* The rest must handle multibyte characters. */
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250
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251 #define ISGRAPH(c) (SINGLE_BYTE_CHAR_P (c) \
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252 ? (c) > ' ' && !((c) >= 0177 && (c) <= 0237) \
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253 : 1)
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254
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255 #define ISPRINT(c) (SINGLE_BYTE_CHAR_P (c) \
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256 ? (c) >= ' ' && !((c) >= 0177 && (c) <= 0237) \
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257 : 1)
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258
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259 #define ISALNUM(c) (IS_REAL_ASCII (c) \
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260 ? (((c) >= 'a' && (c) <= 'z') \
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261 || ((c) >= 'A' && (c) <= 'Z') \
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262 || ((c) >= '0' && (c) <= '9')) \
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263 : SYNTAX (c) == Sword)
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264
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265 #define ISALPHA(c) (IS_REAL_ASCII (c) \
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266 ? (((c) >= 'a' && (c) <= 'z') \
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267 || ((c) >= 'A' && (c) <= 'Z')) \
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268 : SYNTAX (c) == Sword)
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269
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270 #define ISLOWER(c) (LOWERCASEP (c))
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271
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272 #define ISPUNCT(c) (IS_REAL_ASCII (c) \
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273 ? ((c) > ' ' && (c) < 0177 \
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274 && !(((c) >= 'a' && (c) <= 'z') \
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275 || ((c) >= 'A' && (c) <= 'Z') \
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276 || ((c) >= '0' && (c) <= '9'))) \
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277 : SYNTAX (c) != Sword)
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278
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279 #define ISSPACE(c) (SYNTAX (c) == Swhitespace)
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280
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281 #define ISUPPER(c) (UPPERCASEP (c))
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282
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283 #define ISWORD(c) (SYNTAX (c) == Sword)
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284
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285 #else /* not emacs */
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286
441
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287 /* Jim Meyering writes:
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288
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289 "... Some ctype macros are valid only for character codes that
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290 isascii says are ASCII (SGI's IRIX-4.0.5 is one such system --when
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291 using /bin/cc or gcc but without giving an ansi option). So, all
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292 ctype uses should be through macros like ISPRINT... If
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293 STDC_HEADERS is defined, then autoconf has verified that the ctype
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294 macros don't need to be guarded with references to isascii. ...
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295 Defining isascii to 1 should let any compiler worth its salt
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296 eliminate the && through constant folding." */
441
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297
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298 #if defined (STDC_HEADERS) || (!defined (isascii) && !defined (HAVE_ISASCII))
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299 #define ISASCII(c) 1
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300 #else
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301 #define ISASCII(c) isascii(c)
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302 #endif
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303
1965
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304 /* 1 if C is an ASCII character. */
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305 #define IS_REAL_ASCII(c) ((c) < 0200)
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306
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diff changeset
307 /* This distinction is not meaningful, except in Emacs. */
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308 #define ISUNIBYTE(c) 1
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309
1933
5ffa81ab1988 [emacs]: Handle character classes for multibyte chars:
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310 #define ISDIGIT(c) (ISASCII (c) && isdigit (c))
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311 #define ISCNTRL(c) (ISASCII (c) && iscntrl (c))
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312 #define ISXDIGIT(c) (ISASCII (c) && isxdigit (c))
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313
441
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314 #ifdef isblank
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315 #define ISBLANK(c) (ISASCII (c) && isblank (c))
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316 #else
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317 #define ISBLANK(c) ((c) == ' ' || (c) == '\t')
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318 #endif
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319 #ifdef isgraph
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320 #define ISGRAPH(c) (ISASCII (c) && isgraph (c))
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321 #else
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322 #define ISGRAPH(c) (ISASCII (c) && isprint (c) && !isspace (c))
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323 #endif
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324
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325 #define ISPRINT(c) (ISASCII (c) && isprint (c))
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326 #define ISDIGIT(c) (ISASCII (c) && isdigit (c))
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327 #define ISALNUM(c) (ISASCII (c) && isalnum (c))
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328 #define ISALPHA(c) (ISASCII (c) && isalpha (c))
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329 #define ISCNTRL(c) (ISASCII (c) && iscntrl (c))
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330 #define ISLOWER(c) (ISASCII (c) && islower (c))
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331 #define ISPUNCT(c) (ISASCII (c) && ispunct (c))
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332 #define ISSPACE(c) (ISASCII (c) && isspace (c))
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333 #define ISUPPER(c) (ISASCII (c) && isupper (c))
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334 #define ISXDIGIT(c) (ISASCII (c) && isxdigit (c))
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335
1933
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336 #define ISWORD(c) ISALPHA(c)
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337
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338 #endif /* not emacs */
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339
441
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340 #ifndef NULL
447
5607a4b33402 (NULL): Use explicit cast.
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341 #define NULL (void *)0
441
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342 #endif
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343
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344 /* We remove any previous definition of `SIGN_EXTEND_CHAR',
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345 since ours (we hope) works properly with all combinations of
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346 machines, compilers, `char' and `unsigned char' argument types.
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347 (Per Bothner suggested the basic approach.) */
441
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348 #undef SIGN_EXTEND_CHAR
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349 #if __STDC__
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350 #define SIGN_EXTEND_CHAR(c) ((signed char) (c))
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351 #else /* not __STDC__ */
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352 /* As in Harbison and Steele. */
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353 #define SIGN_EXTEND_CHAR(c) ((((unsigned char) (c)) ^ 128) - 128)
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354 #endif
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355
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356 /* Should we use malloc or alloca? If REGEX_MALLOC is not defined, we
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357 use `alloca' instead of `malloc'. This is because using malloc in
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358 re_search* or re_match* could cause memory leaks when C-g is used in
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359 Emacs; also, malloc is slower and causes storage fragmentation. On
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69ba3b63e1d1 (gettext_noop): New macro, identity fn.
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diff changeset
360 the other hand, malloc is more portable, and easier to debug.
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361
441
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362 Because we sometimes use alloca, some routines have to be macros,
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363 not functions -- `alloca'-allocated space disappears at the end of the
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diff changeset
364 function it is called in. */
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365
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366 #ifdef REGEX_MALLOC
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367
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368 #define REGEX_ALLOCATE malloc
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diff changeset
369 #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
370 #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
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 #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
373
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 /* 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
375 #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
376
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 /* 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
378 #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
379 #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
380 #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
381 #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
382 #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
383 #else /* not __GNUC__ or HAVE_ALLOCA_H */
503
2ee098e3c26c Don't declare alloca.
Richard Stallman <rms@gnu.org>
parents: 501
diff changeset
384 #if 0 /* It is a bad idea to declare alloca. We always cast the result. */
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
385 #ifndef _AIX /* Already did AIX, up at the top. */
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
386 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
387 #endif /* not _AIX */
503
2ee098e3c26c Don't declare alloca.
Richard Stallman <rms@gnu.org>
parents: 501
diff changeset
388 #endif
515
69ba3b63e1d1 (gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents: 511
diff changeset
389 #endif /* not HAVE_ALLOCA_H */
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
390 #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
391
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 #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
393
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 #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
395
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 /* 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
397 #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
398 (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
399 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
400 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
401
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 /* 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
403 #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
404
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 #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
406
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 /* 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
408
463
8b8df28857af Fix conditional.
Karl Heuer <kwzh@gnu.org>
parents: 462
diff changeset
409 #if defined (REL_ALLOC) && defined (REGEX_MALLOC)
462
115ffc5a3b13 Don't use relocatable allocator.
Richard Stallman <rms@gnu.org>
parents: 460
diff changeset
410
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
411 #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
412 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
413 #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
414 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
415 #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
416 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
417
462
115ffc5a3b13 Don't use relocatable allocator.
Richard Stallman <rms@gnu.org>
parents: 460
diff changeset
418 #else /* not using relocating allocator */
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
419
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 #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
421
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 #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
423 #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
424 #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
425
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 #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
427
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 #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
429
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 #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
431 REGEX_REALLOCATE (source, osize, nsize)
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
432 /* No need to explicitly free anything. */
2371
3274fb530385 (REGEX_FREE_STACK, RESET_FAIL_STACK): Make them usable as an expression.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2370
diff changeset
433 #define REGEX_FREE_STACK(arg) ((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
434
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 #endif /* not REGEX_MALLOC */
462
115ffc5a3b13 Don't use relocatable allocator.
Richard Stallman <rms@gnu.org>
parents: 460
diff changeset
436 #endif /* not using relocating allocator */
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
437
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 /* 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
440 `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
441 a good thing. */
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
442 #define FIRST_STRING_P(ptr) \
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
443 (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
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 /* (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
446 #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
447 #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
448 #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
449 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
450 #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
451
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
452 #define BYTEWIDTH 8 /* In bits. */
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
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 #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
455
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 #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
457 #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
458 #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
459 #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
460
2349
5fa185a9956e * regex.c: Declare a new type `re_char' used throughout the code for the
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2345
diff changeset
461 /* Type of source-pattern and string chars. */
5fa185a9956e * regex.c: Declare a new type `re_char' used throughout the code for the
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2345
diff changeset
462 typedef const unsigned char re_char;
5fa185a9956e * regex.c: Declare a new type `re_char' used throughout the code for the
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2345
diff changeset
463
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
464 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
465 #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
466 #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
467
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 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
469
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 /* These are the command codes that appear in compiled regular
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
471 expressions. Some opcodes are followed by argument bytes. A
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
472 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
473 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
474
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 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
476 {
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 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
478
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
479 /* Succeed right away--no more backtracking. */
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
480 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
481
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
482 /* Followed by one byte giving n, then by n literal bytes. */
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
483 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
484
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
485 /* Matches any (more or less) character. */
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
486 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
487
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
488 /* Matches any one char belonging to specified set. First
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
489 following byte is number of bitmap bytes. Then come bytes
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
490 for a bitmap saying which chars are in. Bits in each byte
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
491 are ordered low-bit-first. A character is in the set if its
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
492 bit is 1. A character too large to have a bit in the map is
1933
5ffa81ab1988 [emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents: 1660
diff changeset
493 automatically not in the set.
5ffa81ab1988 [emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents: 1660
diff changeset
494
5ffa81ab1988 [emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents: 1660
diff changeset
495 If the length byte has the 0x80 bit set, then that stuff
5ffa81ab1988 [emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents: 1660
diff changeset
496 is followed by a range table:
5ffa81ab1988 [emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents: 1660
diff changeset
497 2 bytes of flags for character sets (low 8 bits, high 8 bits)
5ffa81ab1988 [emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents: 1660
diff changeset
498 See RANGE_TABLE_WORK_BITS below.
5ffa81ab1988 [emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents: 1660
diff changeset
499 2 bytes, the number of pairs that follow
5ffa81ab1988 [emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents: 1660
diff changeset
500 pairs, each 2 multibyte characters,
5ffa81ab1988 [emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents: 1660
diff changeset
501 each multibyte character represented as 3 bytes. */
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
502 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
503
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
504 /* Same parameters as charset, but match any character that is
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
505 not one of those specified. */
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
506 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
507
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
508 /* Start remembering the text that is matched, for storing in a
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
509 register. Followed by one byte with the register number, in
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
510 the range 0 to one less than the pattern buffer's re_nsub
2345
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
511 field. */
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
512 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
513
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
514 /* Stop remembering the text that is matched and store it in a
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
515 memory register. Followed by one byte with the register
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
516 number, in the range 0 to one less than `re_nsub' in the
2345
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
517 pattern buffer. */
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
518 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
519
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
520 /* Match a duplicate of something remembered. Followed by one
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
521 byte containing the register number. */
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
522 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
523
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
524 /* Fail unless at beginning of line. */
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
525 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
526
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
527 /* Fail unless at end of line. */
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
528 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
529
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
530 /* Succeeds if at beginning of buffer (if emacs) or at beginning
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
531 of string to be matched (if not). */
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
532 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
533
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
534 /* Analogously, for end of buffer/string. */
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
535 endbuf,
515
69ba3b63e1d1 (gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents: 511
diff changeset
536
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
537 /* Followed by two byte relative address to which to jump. */
515
69ba3b63e1d1 (gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents: 511
diff changeset
538 jump,
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
539
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
540 /* Followed by two-byte relative address of place to resume at
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
541 in case of failure. */
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
542 on_failure_jump,
515
69ba3b63e1d1 (gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents: 511
diff changeset
543
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
544 /* Like on_failure_jump, but pushes a placeholder instead of the
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
545 current string position when executed. */
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
546 on_failure_keep_string_jump,
515
69ba3b63e1d1 (gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents: 511
diff changeset
547
2345
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
548 /* Just like `on_failure_jump', except that it checks that we
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
549 don't get stuck in an infinite loop (matching an empty string
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
550 indefinitely). */
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
551 on_failure_jump_loop,
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
552
2370
d8ded9c0e20c (enum re_opcode_t): New opcode on_failure_jump_nastyloop.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2359
diff changeset
553 /* Just like `on_failure_jump_loop', except that it checks for
d8ded9c0e20c (enum re_opcode_t): New opcode on_failure_jump_nastyloop.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2359
diff changeset
554 a different kind of loop (the kind that shows up with non-greedy
d8ded9c0e20c (enum re_opcode_t): New opcode on_failure_jump_nastyloop.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2359
diff changeset
555 operators). This operation has to be immediately preceded
d8ded9c0e20c (enum re_opcode_t): New opcode on_failure_jump_nastyloop.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2359
diff changeset
556 by a `no_op'. */
d8ded9c0e20c (enum re_opcode_t): New opcode on_failure_jump_nastyloop.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2359
diff changeset
557 on_failure_jump_nastyloop,
d8ded9c0e20c (enum re_opcode_t): New opcode on_failure_jump_nastyloop.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2359
diff changeset
558
2345
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
559 /* A smart `on_failure_jump' used for greedy * and + operators.
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
560 It analyses the loop before which it is put and if the
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
561 loop does not require backtracking, it changes itself to
2355
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
562 `on_failure_keep_string_jump' and short-circuits the loop,
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
563 else it just defaults to changing itself into `on_failure_jump'.
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
564 It assumes that it is pointing to just past a `jump'. */
2345
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
565 on_failure_jump_smart,
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
566
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
567 /* Followed by two-byte relative address and two-byte number n.
2371
3274fb530385 (REGEX_FREE_STACK, RESET_FAIL_STACK): Make them usable as an expression.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2370
diff changeset
568 After matching N times, jump to the address upon failure.
3274fb530385 (REGEX_FREE_STACK, RESET_FAIL_STACK): Make them usable as an expression.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2370
diff changeset
569 Does not work if N starts at 0: use on_failure_jump_loop
3274fb530385 (REGEX_FREE_STACK, RESET_FAIL_STACK): Make them usable as an expression.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2370
diff changeset
570 instead. */
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
571 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
572
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
573 /* Followed by two-byte relative address, and two-byte number n.
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
574 Jump to the address N times, then fail. */
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
575 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
576
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
577 /* Set the following two-byte relative address to the
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
578 subsequent two-byte number. The address *includes* the two
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
579 bytes of number. */
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
580 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
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 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
583 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
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 wordbound, /* Succeeds if at a word boundary. */
2356
d93889e88226 (CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2355
diff changeset
586 notwordbound, /* Succeeds if not at a word boundary. */
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
587
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 /* Matches any character whose syntax is specified. Followed by
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
589 a byte which contains a syntax code, e.g., Sword. */
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
590 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
591
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 /* Matches any character whose syntax is not that specified. */
2356
d93889e88226 (CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2355
diff changeset
593 notsyntaxspec
d93889e88226 (CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2355
diff changeset
594
d93889e88226 (CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2355
diff changeset
595 #ifdef emacs
d93889e88226 (CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2355
diff changeset
596 ,before_dot, /* Succeeds if before point. */
d93889e88226 (CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2355
diff changeset
597 at_dot, /* Succeeds if at point. */
d93889e88226 (CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2355
diff changeset
598 after_dot, /* Succeeds if after point. */
939
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
599
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
600 /* Matches any character whose category-set contains the specified
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
601 category. The operator is followed by a byte which contains a
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
602 category code (mnemonic ASCII character). */
939
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
603 categoryspec,
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
604
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
605 /* Matches any character whose category-set does not contain the
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
606 specified category. The operator is followed by a byte which
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
607 contains the category code (mnemonic ASCII character). */
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
608 notcategoryspec
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
609 #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
610 } 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
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 /* 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
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 /* 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
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 #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
617 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
618 (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
619 (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
620 } 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
621
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 /* 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
623 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
624 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
625
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 #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
627 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
628 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
629 (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
630 } 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
631
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 /* 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
633 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
634
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 #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
636 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
637 (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
638 (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
639 } 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
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 #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
642 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
643 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
644 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
645 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
646 {
515
69ba3b63e1d1 (gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents: 511
diff changeset
647 int temp = SIGN_EXTEND_CHAR (*(source + 1));
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
648 *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
649 *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
650 }
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
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
652 #ifndef EXTRACT_MACROS /* To debug the macros. */
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
653 #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
654 #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
655 #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
656
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 #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
658
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 /* 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
660 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
661
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 #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
663 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
664 EXTRACT_NUMBER (destination, source); \
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
665 (source) += 2; \
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
666 } 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
667
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 #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
669 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
670 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
671 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
672 unsigned char **source;
515
69ba3b63e1d1 (gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents: 511
diff changeset
673 {
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
674 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
675 *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
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
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 #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
679 #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
680 #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
681 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
682 #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
683
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 #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
685
939
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
686 /* Store a multibyte character in three contiguous bytes starting
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
687 DESTINATION, and increment DESTINATION to the byte after where the
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
688 character is stored. Therefore, DESTINATION must be an lvalue. */
939
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
689
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
690 #define STORE_CHARACTER_AND_INCR(destination, character) \
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
691 do { \
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
692 (destination)[0] = (character) & 0377; \
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
693 (destination)[1] = ((character) >> 8) & 0377; \
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
694 (destination)[2] = (character) >> 16; \
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
695 (destination) += 3; \
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
696 } while (0)
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
697
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
698 /* Put into DESTINATION a character stored in three contiguous bytes
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
699 starting at SOURCE. */
939
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
700
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
701 #define EXTRACT_CHARACTER(destination, source) \
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
702 do { \
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
703 (destination) = ((source)[0] \
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
704 | ((source)[1] << 8) \
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
705 | ((source)[2] << 16)); \
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
706 } while (0)
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
707
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
708
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
709 /* Macros for charset. */
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
710
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
711 /* Size of bitmap of charset P in bytes. P is a start of charset,
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
712 i.e. *P is (re_opcode_t) charset or (re_opcode_t) charset_not. */
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
713 #define CHARSET_BITMAP_SIZE(p) ((p)[1] & 0x7F)
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
714
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
715 /* Nonzero if charset P has range table. */
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
716 #define CHARSET_RANGE_TABLE_EXISTS_P(p) ((p)[1] & 0x80)
939
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
717
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
718 /* Return the address of range table of charset P. But not the start
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
719 of table itself, but the before where the number of ranges is
1933
5ffa81ab1988 [emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents: 1660
diff changeset
720 stored. `2 +' means to skip re_opcode_t and size of bitmap,
5ffa81ab1988 [emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents: 1660
diff changeset
721 and the 2 bytes of flags at the start of the range table. */
5ffa81ab1988 [emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents: 1660
diff changeset
722 #define CHARSET_RANGE_TABLE(p) (&(p)[4 + CHARSET_BITMAP_SIZE (p)])
5ffa81ab1988 [emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents: 1660
diff changeset
723
5ffa81ab1988 [emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents: 1660
diff changeset
724 /* Extract the bit flags that start a range table. */
5ffa81ab1988 [emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents: 1660
diff changeset
725 #define CHARSET_RANGE_TABLE_BITS(p) \
5ffa81ab1988 [emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents: 1660
diff changeset
726 ((p)[2 + CHARSET_BITMAP_SIZE (p)] \
5ffa81ab1988 [emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents: 1660
diff changeset
727 + (p)[3 + CHARSET_BITMAP_SIZE (p)] * 0x100)
939
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
728
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
729 /* Test if C is listed in the bitmap of charset P. */
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
730 #define CHARSET_LOOKUP_BITMAP(p, c) \
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
731 ((c) < CHARSET_BITMAP_SIZE (p) * BYTEWIDTH \
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
732 && (p)[2 + (c) / BYTEWIDTH] & (1 << ((c) % BYTEWIDTH)))
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
733
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
734 /* Return the address of end of RANGE_TABLE. COUNT is number of
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
735 ranges (which is a pair of (start, end)) in the RANGE_TABLE. `* 2'
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
736 is start of range and end of range. `* 3' is size of each start
939
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
737 and end. */
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
738 #define CHARSET_RANGE_TABLE_END(range_table, count) \
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
739 ((range_table) + (count) * 2 * 3)
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
740
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
741 /* Test if C is in RANGE_TABLE. A flag NOT is negated if C is in.
939
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
742 COUNT is number of ranges in RANGE_TABLE. */
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
743 #define CHARSET_LOOKUP_RANGE_TABLE_RAW(not, c, range_table, count) \
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
744 do \
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
745 { \
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
746 int range_start, range_end; \
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
747 unsigned char *p; \
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
748 unsigned char *range_table_end \
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
749 = CHARSET_RANGE_TABLE_END ((range_table), (count)); \
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
750 \
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
751 for (p = (range_table); p < range_table_end; p += 2 * 3) \
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
752 { \
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
753 EXTRACT_CHARACTER (range_start, p); \
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
754 EXTRACT_CHARACTER (range_end, p + 3); \
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
755 \
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
756 if (range_start <= (c) && (c) <= range_end) \
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
757 { \
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
758 (not) = !(not); \
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
759 break; \
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
760 } \
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
761 } \
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
762 } \
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
763 while (0)
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
764
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
765 /* Test if C is in range table of CHARSET. The flag NOT is negated if
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
766 C is listed in it. */
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
767 #define CHARSET_LOOKUP_RANGE_TABLE(not, c, charset) \
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
768 do \
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
769 { \
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
770 /* Number of ranges in range table. */ \
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
771 int count; \
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
772 unsigned char *range_table = CHARSET_RANGE_TABLE (charset); \
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
773 \
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
774 EXTRACT_NUMBER_AND_INCR (count, range_table); \
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
775 CHARSET_LOOKUP_RANGE_TABLE_RAW ((not), (c), range_table, count); \
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
776 } \
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
777 while (0)
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
778
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
779 /* 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
780 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
781 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
782 interactively. And if linked with the main program in `main.c' and
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
783 the other test files, you can run the already-written tests. */
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
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 #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
786
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 /* 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
788 #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
789
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 /* 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
791 #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
792
2350
f3edfed6aa96 (re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2349
diff changeset
793 static int debug = -100000;
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
794
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 #define DEBUG_STATEMENT(e) e
2350
f3edfed6aa96 (re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2349
diff changeset
796 #define DEBUG_PRINT1(x) if (debug > 0) printf (x)
f3edfed6aa96 (re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2349
diff changeset
797 #define DEBUG_PRINT2(x1, x2) if (debug > 0) printf (x1, x2)
f3edfed6aa96 (re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2349
diff changeset
798 #define DEBUG_PRINT3(x1, x2, x3) if (debug > 0) printf (x1, x2, x3)
f3edfed6aa96 (re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2349
diff changeset
799 #define DEBUG_PRINT4(x1, x2, x3, x4) if (debug > 0) printf (x1, x2, x3, x4)
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
800 #define DEBUG_PRINT_COMPILED_PATTERN(p, s, e) \
2350
f3edfed6aa96 (re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2349
diff changeset
801 if (debug > 0) print_partial_compiled_pattern (s, e)
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
802 #define DEBUG_PRINT_DOUBLE_STRING(w, s1, sz1, s2, sz2) \
2350
f3edfed6aa96 (re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2349
diff changeset
803 if (debug > 0) print_double_string (w, s1, sz1, s2, sz2)
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
804
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 /* 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
807
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 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
809 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
810 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
811 {
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 unsigned was_a_range = 0;
515
69ba3b63e1d1 (gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents: 511
diff changeset
813 unsigned i = 0;
69ba3b63e1d1 (gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents: 511
diff changeset
814
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
815 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
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 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
818 {
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 was_a_range = 0;
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
820 putchar (i - 1);
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
821 while (i < (1 << BYTEWIDTH) && fastmap[i])
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
822 {
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
823 was_a_range = 1;
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
824 i++;
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
825 }
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
826 if (was_a_range)
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
827 {
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
828 printf ("-");
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
829 putchar (i - 1);
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
830 }
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
831 }
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
832 }
515
69ba3b63e1d1 (gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents: 511
diff changeset
833 putchar ('\n');
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
834 }
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
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 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
838 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
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 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
841 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
842 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
843 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
844 {
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 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
846 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
847 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
848
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 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
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 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
852 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
853 }
515
69ba3b63e1d1 (gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents: 511
diff changeset
854
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
855 /* 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
856 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
857 {
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 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
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 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
861 {
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
862 case no_op:
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
863 printf ("/no_op");
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
864 break;
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
865
2350
f3edfed6aa96 (re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2349
diff changeset
866 case succeed:
f3edfed6aa96 (re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2349
diff changeset
867 printf ("/succeed");
f3edfed6aa96 (re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2349
diff changeset
868 break;
f3edfed6aa96 (re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2349
diff changeset
869
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
870 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
871 mcnt = *p++;
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
872 printf ("/exactn/%d", mcnt);
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
873 do
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
874 {
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
875 putchar ('/');
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
876 putchar (*p++);
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
877 }
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
878 while (--mcnt);
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
879 break;
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
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 case start_memory:
2345
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
882 printf ("/start_memory/%d", *p++);
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
883 break;
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
884
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 case stop_memory:
2345
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
886 printf ("/stop_memory/%d", *p++);
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
887 break;
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
888
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 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
890 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
891 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
892
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 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
894 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
895 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
896
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 case charset:
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
898 case charset_not:
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
899 {
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
900 register int c, last = -100;
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
901 register int in_range = 0;
2350
f3edfed6aa96 (re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2349
diff changeset
902 int length = CHARSET_BITMAP_SIZE (p - 1);
f3edfed6aa96 (re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2349
diff changeset
903 int has_range_table = CHARSET_RANGE_TABLE_EXISTS_P (p - 1);
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
904
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 printf ("/charset [%s",
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
906 (re_opcode_t) *(p - 1) == charset_not ? "^" : "");
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
907
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
908 assert (p + *p < pend);
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
909
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
910 for (c = 0; c < 256; c++)
1933
5ffa81ab1988 [emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents: 1660
diff changeset
911 if (c / 8 < length
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
912 && (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
913 {
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 /* 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
915 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
916 {
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 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
918 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
919 }
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 /* 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
921 else if (last + 1 != c && in_range)
1933
5ffa81ab1988 [emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents: 1660
diff changeset
922 {
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
923 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
924 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
925 }
515
69ba3b63e1d1 (gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents: 511
diff changeset
926
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
927 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
928 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
929
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 last = c;
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
931 }
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
932
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 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
934 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
935
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 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
937
2350
f3edfed6aa96 (re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2349
diff changeset
938 p += 1 + length;
f3edfed6aa96 (re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2349
diff changeset
939
1933
5ffa81ab1988 [emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents: 1660
diff changeset
940 if (has_range_table)
2350
f3edfed6aa96 (re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2349
diff changeset
941 {
f3edfed6aa96 (re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2349
diff changeset
942 int count;
f3edfed6aa96 (re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2349
diff changeset
943 printf ("has-range-table");
f3edfed6aa96 (re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2349
diff changeset
944
f3edfed6aa96 (re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2349
diff changeset
945 /* ??? Should print the range table; for now, just skip it. */
f3edfed6aa96 (re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2349
diff changeset
946 p += 2; /* skip range table bits */
f3edfed6aa96 (re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2349
diff changeset
947 EXTRACT_NUMBER_AND_INCR (count, p);
f3edfed6aa96 (re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2349
diff changeset
948 p = CHARSET_RANGE_TABLE_END (p, count);
f3edfed6aa96 (re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2349
diff changeset
949 }
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
950 }
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 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
952
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 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
954 printf ("/begline");
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
955 break;
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
956
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 case endline:
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
958 printf ("/endline");
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
959 break;
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
960
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 case on_failure_jump:
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
962 extract_number_and_incr (&mcnt, &p);
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
963 printf ("/on_failure_jump to %d", p + mcnt - start);
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
964 break;
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
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 case on_failure_keep_string_jump:
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
967 extract_number_and_incr (&mcnt, &p);
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
968 printf ("/on_failure_keep_string_jump to %d", p + mcnt - start);
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
969 break;
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
970
2370
d8ded9c0e20c (enum re_opcode_t): New opcode on_failure_jump_nastyloop.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2359
diff changeset
971 case on_failure_jump_nastyloop:
d8ded9c0e20c (enum re_opcode_t): New opcode on_failure_jump_nastyloop.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2359
diff changeset
972 extract_number_and_incr (&mcnt, &p);
d8ded9c0e20c (enum re_opcode_t): New opcode on_failure_jump_nastyloop.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2359
diff changeset
973 printf ("/on_failure_jump_nastyloop to %d", p + mcnt - start);
d8ded9c0e20c (enum re_opcode_t): New opcode on_failure_jump_nastyloop.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2359
diff changeset
974 break;
d8ded9c0e20c (enum re_opcode_t): New opcode on_failure_jump_nastyloop.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2359
diff changeset
975
2345
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
976 case on_failure_jump_loop:
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
977 extract_number_and_incr (&mcnt, &p);
2345
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
978 printf ("/on_failure_jump_loop to %d", p + mcnt - start);
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
979 break;
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
980
2345
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
981 case on_failure_jump_smart:
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
982 extract_number_and_incr (&mcnt, &p);
2345
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
983 printf ("/on_failure_jump_smart to %d", p + mcnt - start);
515
69ba3b63e1d1 (gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents: 511
diff changeset
984 break;
69ba3b63e1d1 (gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents: 511
diff changeset
985
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
986 case jump:
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
987 extract_number_and_incr (&mcnt, &p);
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
988 printf ("/jump to %d", p + mcnt - start);
679
b088267ea1c8 Clean up whitespace.
Richard Stallman <rms@gnu.org>
parents: 678
diff changeset
989 break;
b088267ea1c8 Clean up whitespace.
Richard Stallman <rms@gnu.org>
parents: 678
diff changeset
990
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
991 case succeed_n:
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
992 extract_number_and_incr (&mcnt, &p);
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
993 extract_number_and_incr (&mcnt2, &p);
2350
f3edfed6aa96 (re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2349
diff changeset
994 printf ("/succeed_n to %d, %d times", p - 2 + mcnt - start, mcnt2);
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
995 break;
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
996
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
997 case jump_n:
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
998 extract_number_and_incr (&mcnt, &p);
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
999 extract_number_and_incr (&mcnt2, &p);
2350
f3edfed6aa96 (re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2349
diff changeset
1000 printf ("/jump_n to %d, %d times", p - 2 + mcnt - start, mcnt2);
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
1001 break;
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
1002
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
1003 case set_number_at:
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
1004 extract_number_and_incr (&mcnt, &p);
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
1005 extract_number_and_incr (&mcnt2, &p);
2350
f3edfed6aa96 (re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2349
diff changeset
1006 printf ("/set_number_at location %d to %d", p - 2 + mcnt - start, mcnt2);
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
1007 break;
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
1008
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
1009 case wordbound:
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
1010 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
1011 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
1012
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 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
1014 printf ("/notwordbound");
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
1015 break;
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
1016
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 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
1018 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
1019 break;
515
69ba3b63e1d1 (gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents: 511
diff changeset
1020
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
1021 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
1022 printf ("/wordend");
515
69ba3b63e1d1 (gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents: 511
diff changeset
1023
2356
d93889e88226 (CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2355
diff changeset
1024 case syntaxspec:
d93889e88226 (CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2355
diff changeset
1025 printf ("/syntaxspec");
d93889e88226 (CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2355
diff changeset
1026 mcnt = *p++;
d93889e88226 (CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2355
diff changeset
1027 printf ("/%d", mcnt);
d93889e88226 (CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2355
diff changeset
1028 break;
d93889e88226 (CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2355
diff changeset
1029
d93889e88226 (CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2355
diff changeset
1030 case notsyntaxspec:
d93889e88226 (CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2355
diff changeset
1031 printf ("/notsyntaxspec");
d93889e88226 (CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2355
diff changeset
1032 mcnt = *p++;
d93889e88226 (CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2355
diff changeset
1033 printf ("/%d", mcnt);
d93889e88226 (CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2355
diff changeset
1034 break;
d93889e88226 (CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2355
diff changeset
1035
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
1036 #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
1037 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
1038 printf ("/before_dot");
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
1039 break;
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
1040
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 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
1042 printf ("/at_dot");
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
1043 break;
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
1044
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 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
1046 printf ("/after_dot");
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
1047 break;
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
1048
2356
d93889e88226 (CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2355
diff changeset
1049 case categoryspec:
d93889e88226 (CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2355
diff changeset
1050 printf ("/categoryspec");
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
1051 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
1052 printf ("/%d", mcnt);
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
1053 break;
515
69ba3b63e1d1 (gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents: 511
diff changeset
1054
2356
d93889e88226 (CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2355
diff changeset
1055 case notcategoryspec:
d93889e88226 (CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2355
diff changeset
1056 printf ("/notcategoryspec");
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
1057 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
1058 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
1059 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
1060 #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
1061
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 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
1063 printf ("/begbuf");
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
1064 break;
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
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 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
1067 printf ("/endbuf");
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
1068 break;
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
1069
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
1070 default:
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
1071 printf ("?%d", *(p-1));
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
1072 }
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
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 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
1075 }
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
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 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
1078 }
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
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
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 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
1082 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
1083 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
1084 {
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 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
1086
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 print_partial_compiled_pattern (buffer, buffer + bufp->used);
2345
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
1088 printf ("%ld bytes used/%ld bytes allocated.\n", bufp->used, bufp->allocated);
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
1089
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 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
1091 {
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 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
1093 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
1094 }
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
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 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
1097 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
1098 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
1099 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
1100 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
1101 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
1102 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
1103 printf ("syntax: %d\n", bufp->syntax);
2345
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
1104 fflush (stdout);
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
1105 /* 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
1106 }
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
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
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 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
1110 print_double_string (where, string1, size1, string2, size2)
2349
5fa185a9956e * regex.c: Declare a new type `re_char' used throughout the code for the
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2345
diff changeset
1111 re_char *where;
5fa185a9956e * regex.c: Declare a new type `re_char' used throughout the code for the
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2345
diff changeset
1112 re_char *string1;
5fa185a9956e * regex.c: Declare a new type `re_char' used throughout the code for the
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2345
diff changeset
1113 re_char *string2;
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
1114 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
1115 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
1116 {
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 unsigned this_char;
515
69ba3b63e1d1 (gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents: 511
diff changeset
1118
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
1119 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
1120 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
1121 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
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 if (FIRST_STRING_P (where))
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
1124 {
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
1125 for (this_char = where - string1; this_char < size1; this_char++)
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
1126 putchar (string1[this_char]);
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
1127
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
1128 where = string2;
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
1129 }
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
1130
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 for (this_char = where - string2; this_char < size2; this_char++)
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
1132 putchar (string2[this_char]);
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
1133 }
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 }
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
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 #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
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 #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
1139 #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
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 #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
1142 #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
1143 #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
1144 #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
1145 #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
1146 #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
1147 #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
1148
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 #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
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 /* 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
1152 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
1153 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
1154 /* 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
1155 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
1156 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
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
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 /* 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
1160 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
1161 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
1162
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 The argument SYNTAX is a bit mask comprised of the various bits
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
1164 defined in regex.h. We return the old syntax. */
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
1165
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 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
1167 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
1168 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
1169 {
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 reg_syntax_t ret = re_syntax_options;
515
69ba3b63e1d1 (gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents: 511
diff changeset
1171
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
1172 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
1173 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
1174 }
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
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 /* This table gives an error message for each of the error codes listed
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
1177 in regex.h. Obviously the order here has to be same as there.
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
1178 POSIX doesn't require that we do anything for REG_NOERROR,
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
1179 but why not be nice? */
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
1180
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 static const char *re_error_msgid[] =
515
69ba3b63e1d1 (gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents: 511
diff changeset
1182 {
69ba3b63e1d1 (gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents: 511
diff changeset
1183 gettext_noop ("Success"), /* REG_NOERROR */
69ba3b63e1d1 (gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents: 511
diff changeset
1184 gettext_noop ("No match"), /* REG_NOMATCH */
69ba3b63e1d1 (gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents: 511
diff changeset
1185 gettext_noop ("Invalid regular expression"), /* REG_BADPAT */
69ba3b63e1d1 (gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents: 511
diff changeset
1186 gettext_noop ("Invalid collation character"), /* REG_ECOLLATE */
69ba3b63e1d1 (gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents: 511
diff changeset
1187 gettext_noop ("Invalid character class name"), /* REG_ECTYPE */
69ba3b63e1d1 (gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents: 511
diff changeset
1188 gettext_noop ("Trailing backslash"), /* REG_EESCAPE */
69ba3b63e1d1 (gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents: 511
diff changeset
1189 gettext_noop ("Invalid back reference"), /* REG_ESUBREG */
69ba3b63e1d1 (gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents: 511
diff changeset
1190 gettext_noop ("Unmatched [ or [^"), /* REG_EBRACK */
69ba3b63e1d1 (gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents: 511
diff changeset
1191 gettext_noop ("Unmatched ( or \\("), /* REG_EPAREN */
69ba3b63e1d1 (gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents: 511
diff changeset
1192 gettext_noop ("Unmatched \\{"), /* REG_EBRACE */
69ba3b63e1d1 (gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents: 511
diff changeset
1193 gettext_noop ("Invalid content of \\{\\}"), /* REG_BADBR */
69ba3b63e1d1 (gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents: 511
diff changeset
1194 gettext_noop ("Invalid range end"), /* REG_ERANGE */
69ba3b63e1d1 (gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents: 511
diff changeset
1195 gettext_noop ("Memory exhausted"), /* REG_ESPACE */
69ba3b63e1d1 (gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents: 511
diff changeset
1196 gettext_noop ("Invalid preceding regular expression"), /* REG_BADRPT */
69ba3b63e1d1 (gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents: 511
diff changeset
1197 gettext_noop ("Premature end of regular expression"), /* REG_EEND */
69ba3b63e1d1 (gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents: 511
diff changeset
1198 gettext_noop ("Regular expression too big"), /* REG_ESIZE */
69ba3b63e1d1 (gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents: 511
diff changeset
1199 gettext_noop ("Unmatched ) or \\)"), /* REG_ERPAREN */
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
1200 };
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
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
1202 /* Avoiding alloca during matching, to placate r_alloc. */
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
1203
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 /* 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
1205 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
1206 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
1207 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
1208 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
1209 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
1210 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
1211
515
69ba3b63e1d1 (gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents: 511
diff changeset
1212 Here's another reason to avoid allocation: Emacs
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
1213 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
1214 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
1215 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
1216 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
1217 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
1218 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
1219 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
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 /* 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
1222 #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
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 /* 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
1225 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
1226 #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
1227 #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
1228 #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
1229
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 /* 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
1231 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
1232 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
1233 failure stack, but we would still use it for the register vectors;
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
1234 so REL_ALLOC should not affect this. */
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
1235 #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
1236 #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
1237 #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
1238
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 /* 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
1241 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
1242 REGEX_ALLOCATE_STACK. */
515
69ba3b63e1d1 (gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents: 511
diff changeset
1243
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
1244
1156
8e1cbb305ddc (TYPICAL_FAILURE_SIZE): Renamed from MAX_FAILURE_ITEMS.
Karl Heuer <kwzh@gnu.org>
parents: 992
diff changeset
1245 /* Approximate number of failure points for which to initially allocate space
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
1246 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
1247 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
1248 #ifndef INIT_FAILURE_ALLOC
1156
8e1cbb305ddc (TYPICAL_FAILURE_SIZE): Renamed from MAX_FAILURE_ITEMS.
Karl Heuer <kwzh@gnu.org>
parents: 992
diff changeset
1249 #define INIT_FAILURE_ALLOC 20
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
1250 #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
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 /* Roughly the maximum number of failure points on the stack. Would be
1156
8e1cbb305ddc (TYPICAL_FAILURE_SIZE): Renamed from MAX_FAILURE_ITEMS.
Karl Heuer <kwzh@gnu.org>
parents: 992
diff changeset
1253 exactly that if always used TYPICAL_FAILURE_SIZE items each time we failed.
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
1254 This is a variable only so users of regex can assign to it; we never
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
1255 change it ourselves. */
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
1256 #if defined (MATCH_MAY_ALLOCATE)
1156
8e1cbb305ddc (TYPICAL_FAILURE_SIZE): Renamed from MAX_FAILURE_ITEMS.
Karl Heuer <kwzh@gnu.org>
parents: 992
diff changeset
1257 /* Note that 4400 is enough to cause a crash on Alpha OSF/1,
8e1cbb305ddc (TYPICAL_FAILURE_SIZE): Renamed from MAX_FAILURE_ITEMS.
Karl Heuer <kwzh@gnu.org>
parents: 992
diff changeset
1258 whose default stack limit is 2mb. In order for a larger
8e1cbb305ddc (TYPICAL_FAILURE_SIZE): Renamed from MAX_FAILURE_ITEMS.
Karl Heuer <kwzh@gnu.org>
parents: 992
diff changeset
1259 value to work reliably, you have to try to make it accord
8e1cbb305ddc (TYPICAL_FAILURE_SIZE): Renamed from MAX_FAILURE_ITEMS.
Karl Heuer <kwzh@gnu.org>
parents: 992
diff changeset
1260 with the process stack limit. */
8e1cbb305ddc (TYPICAL_FAILURE_SIZE): Renamed from MAX_FAILURE_ITEMS.
Karl Heuer <kwzh@gnu.org>
parents: 992
diff changeset
1261 int re_max_failures = 40000;
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
1262 #else
1156
8e1cbb305ddc (TYPICAL_FAILURE_SIZE): Renamed from MAX_FAILURE_ITEMS.
Karl Heuer <kwzh@gnu.org>
parents: 992
diff changeset
1263 int re_max_failures = 4000;
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
1264 #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
1265
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 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
1267 {
2349
5fa185a9956e * regex.c: Declare a new type `re_char' used throughout the code for the
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2345
diff changeset
1268 const unsigned char *pointer;
2345
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
1269 unsigned int integer;
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
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
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 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
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 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
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 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
1277 unsigned size;
2345
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
1278 unsigned avail; /* Offset of next open position. */
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
1279 unsigned frame; /* Offset of the cur constructed frame. */
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
1280 } 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
1281
2345
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
1282 #define PATTERN_STACK_EMPTY() (fail_stack.avail == 0)
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
1283 #define FAIL_STACK_EMPTY() (fail_stack.frame == 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
1284 #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
1285
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 /* 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
1288 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
1289
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 #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
1291 #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
1292 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
1293 fail_stack.stack = (fail_stack_elt_t *) \
1156
8e1cbb305ddc (TYPICAL_FAILURE_SIZE): Renamed from MAX_FAILURE_ITEMS.
Karl Heuer <kwzh@gnu.org>
parents: 992
diff changeset
1294 REGEX_ALLOCATE_STACK (INIT_FAILURE_ALLOC * TYPICAL_FAILURE_SIZE \
8e1cbb305ddc (TYPICAL_FAILURE_SIZE): Renamed from MAX_FAILURE_ITEMS.
Karl Heuer <kwzh@gnu.org>
parents: 992
diff changeset
1295 * sizeof (fail_stack_elt_t)); \
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
1296 \
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 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
1298 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
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 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
1301 fail_stack.avail = 0; \
2345
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
1302 fail_stack.frame = 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
1303 } 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
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 #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
1306 #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
1307 #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
1308 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
1309 fail_stack.avail = 0; \
2345
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
1310 fail_stack.frame = 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
1311 } 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
1312
2371
3274fb530385 (REGEX_FREE_STACK, RESET_FAIL_STACK): Make them usable as an expression.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2370
diff changeset
1313 #define RESET_FAIL_STACK() ((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
1314 #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
1315
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
1156
8e1cbb305ddc (TYPICAL_FAILURE_SIZE): Renamed from MAX_FAILURE_ITEMS.
Karl Heuer <kwzh@gnu.org>
parents: 992
diff changeset
1317 /* Double the size of FAIL_STACK, up to a limit
8e1cbb305ddc (TYPICAL_FAILURE_SIZE): Renamed from MAX_FAILURE_ITEMS.
Karl Heuer <kwzh@gnu.org>
parents: 992
diff changeset
1318 which allows approximately `re_max_failures' items.
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
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 Return 1 if succeeds, and 0 if either ran out of memory
515
69ba3b63e1d1 (gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents: 511
diff changeset
1321 allocating space for it or it was already too large.
69ba3b63e1d1 (gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents: 511
diff changeset
1322
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
1323 REGEX_REALLOCATE_STACK requires `destination' be declared. */
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
1324
1156
8e1cbb305ddc (TYPICAL_FAILURE_SIZE): Renamed from MAX_FAILURE_ITEMS.
Karl Heuer <kwzh@gnu.org>
parents: 992
diff changeset
1325 /* Factor to increase the failure stack size by
8e1cbb305ddc (TYPICAL_FAILURE_SIZE): Renamed from MAX_FAILURE_ITEMS.
Karl Heuer <kwzh@gnu.org>
parents: 992
diff changeset
1326 when we increase it.
8e1cbb305ddc (TYPICAL_FAILURE_SIZE): Renamed from MAX_FAILURE_ITEMS.
Karl Heuer <kwzh@gnu.org>
parents: 992
diff changeset
1327 This used to be 2, but 2 was too wasteful
8e1cbb305ddc (TYPICAL_FAILURE_SIZE): Renamed from MAX_FAILURE_ITEMS.
Karl Heuer <kwzh@gnu.org>
parents: 992
diff changeset
1328 because the old discarded stacks added up to as much space
8e1cbb305ddc (TYPICAL_FAILURE_SIZE): Renamed from MAX_FAILURE_ITEMS.
Karl Heuer <kwzh@gnu.org>
parents: 992
diff changeset
1329 were as ultimate, maximum-size stack. */
8e1cbb305ddc (TYPICAL_FAILURE_SIZE): Renamed from MAX_FAILURE_ITEMS.
Karl Heuer <kwzh@gnu.org>
parents: 992
diff changeset
1330 #define FAIL_STACK_GROWTH_FACTOR 4
8e1cbb305ddc (TYPICAL_FAILURE_SIZE): Renamed from MAX_FAILURE_ITEMS.
Karl Heuer <kwzh@gnu.org>
parents: 992
diff changeset
1331
8e1cbb305ddc (TYPICAL_FAILURE_SIZE): Renamed from MAX_FAILURE_ITEMS.
Karl Heuer <kwzh@gnu.org>
parents: 992
diff changeset
1332 #define GROW_FAIL_STACK(fail_stack) \
1158
282562802f46 (GROW_FAIL_STACK): Fix test for stack size at max.
Karl Heuer <kwzh@gnu.org>
parents: 1157
diff changeset
1333 (((fail_stack).size * sizeof (fail_stack_elt_t) \
282562802f46 (GROW_FAIL_STACK): Fix test for stack size at max.
Karl Heuer <kwzh@gnu.org>
parents: 1157
diff changeset
1334 >= re_max_failures * TYPICAL_FAILURE_SIZE) \
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
1335 ? 0 \
1156
8e1cbb305ddc (TYPICAL_FAILURE_SIZE): Renamed from MAX_FAILURE_ITEMS.
Karl Heuer <kwzh@gnu.org>
parents: 992
diff changeset
1336 : ((fail_stack).stack \
8e1cbb305ddc (TYPICAL_FAILURE_SIZE): Renamed from MAX_FAILURE_ITEMS.
Karl Heuer <kwzh@gnu.org>
parents: 992
diff changeset
1337 = (fail_stack_elt_t *) \
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
1338 REGEX_REALLOCATE_STACK ((fail_stack).stack, \
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
1339 (fail_stack).size * sizeof (fail_stack_elt_t), \
1156
8e1cbb305ddc (TYPICAL_FAILURE_SIZE): Renamed from MAX_FAILURE_ITEMS.
Karl Heuer <kwzh@gnu.org>
parents: 992
diff changeset
1340 MIN (re_max_failures * TYPICAL_FAILURE_SIZE, \
8e1cbb305ddc (TYPICAL_FAILURE_SIZE): Renamed from MAX_FAILURE_ITEMS.
Karl Heuer <kwzh@gnu.org>
parents: 992
diff changeset
1341 ((fail_stack).size * sizeof (fail_stack_elt_t) \
8e1cbb305ddc (TYPICAL_FAILURE_SIZE): Renamed from MAX_FAILURE_ITEMS.
Karl Heuer <kwzh@gnu.org>
parents: 992
diff changeset
1342 * FAIL_STACK_GROWTH_FACTOR))), \
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
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 (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
1345 ? 0 \
1157
5aa89bba935d (GROW_FAIL_STACK): Fix previous change:
Karl Heuer <kwzh@gnu.org>
parents: 1156
diff changeset
1346 : ((fail_stack).size \
5aa89bba935d (GROW_FAIL_STACK): Fix previous change:
Karl Heuer <kwzh@gnu.org>
parents: 1156
diff changeset
1347 = (MIN (re_max_failures * TYPICAL_FAILURE_SIZE, \
5aa89bba935d (GROW_FAIL_STACK): Fix previous change:
Karl Heuer <kwzh@gnu.org>
parents: 1156
diff changeset
1348 ((fail_stack).size * sizeof (fail_stack_elt_t) \
5aa89bba935d (GROW_FAIL_STACK): Fix previous change:
Karl Heuer <kwzh@gnu.org>
parents: 1156
diff changeset
1349 * FAIL_STACK_GROWTH_FACTOR)) \
5aa89bba935d (GROW_FAIL_STACK): Fix previous change:
Karl Heuer <kwzh@gnu.org>
parents: 1156
diff changeset
1350 / sizeof (fail_stack_elt_t)), \
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
1351 1)))
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
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
515
69ba3b63e1d1 (gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents: 511
diff changeset
1354 /* Push pointer POINTER on FAIL_STACK.
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
1355 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
1356 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
1357 #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
1358 ((FAIL_STACK_FULL () \
1156
8e1cbb305ddc (TYPICAL_FAILURE_SIZE): Renamed from MAX_FAILURE_ITEMS.
Karl Heuer <kwzh@gnu.org>
parents: 992
diff changeset
1359 && !GROW_FAIL_STACK (FAIL_STACK)) \
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
1360 ? 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
1361 : ((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
1362 1))
2345
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
1363 #define POP_PATTERN_OP() POP_FAILURE_POINTER ()
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
1364
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 /* 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
1366 Assumes the variable `fail_stack'. Probably should only
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
1367 be called from within `PUSH_FAILURE_POINT'. */
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
1368 #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
1369 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
1370
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 /* 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
1372 Assumes the variable `fail_stack'. Probably should only
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
1373 be called from within `PUSH_FAILURE_POINT'. */
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
1374 #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
1375 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
1376
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 /* 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
1378 Assumes the variable `fail_stack'. Probably should only
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
1379 be called from within `PUSH_FAILURE_POINT'. */
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
1380 #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
1381 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
1382
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 /* 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
1384 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
1385 #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
1386 #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
1387 #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
1388
2345
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
1389 /* Individual items aside from the registers. */
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
1390 #define NUM_NONREG_ITEMS 3
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
1391
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
1392 /* Used to examine the stack (to detect infinite loops). */
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
1393 #define FAILURE_PAT(h) fail_stack.stack[(h) - 1].pointer
2349
5fa185a9956e * regex.c: Declare a new type `re_char' used throughout the code for the
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2345
diff changeset
1394 #define FAILURE_STR(h) (fail_stack.stack[(h) - 2].pointer)
2345
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
1395 #define NEXT_FAILURE_HANDLE(h) fail_stack.stack[(h) - 3].integer
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
1396 #define TOP_FAILURE_HANDLE() fail_stack.frame
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
1397
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
1398
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
1399 #define ENSURE_FAIL_STACK(space) \
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
1400 while (REMAINING_AVAIL_SLOTS <= space) { \
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
1401 if (!GROW_FAIL_STACK (fail_stack)) \
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
1402 return -2; \
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
1403 DEBUG_PRINT2 ("\n Doubled stack; size now: %d\n", (fail_stack).size);\
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
1404 DEBUG_PRINT2 (" slots available: %d\n", REMAINING_AVAIL_SLOTS);\
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
1405 }
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
1406
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
1407 /* Push register NUM onto the stack. */
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
1408 #define PUSH_FAILURE_REG(num) \
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
1409 do { \
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
1410 char *destination; \
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
1411 ENSURE_FAIL_STACK(3); \
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
1412 DEBUG_PRINT4 (" Push reg %d (spanning %p -> %p)\n", \
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
1413 num, regstart[num], regend[num]); \
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
1414 PUSH_FAILURE_POINTER (regstart[num]); \
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
1415 PUSH_FAILURE_POINTER (regend[num]); \
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
1416 PUSH_FAILURE_INT (num); \
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
1417 } while (0)
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
1418
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
1419 /* Pop a saved register off the stack. */
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
1420 #define POP_FAILURE_REG() \
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
1421 do { \
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
1422 int reg = POP_FAILURE_INT (); \
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
1423 regend[reg] = POP_FAILURE_POINTER (); \
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
1424 regstart[reg] = POP_FAILURE_POINTER (); \
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
1425 DEBUG_PRINT4 (" Pop reg %d (spanning %p -> %p)\n", \
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
1426 reg, regstart[reg], regend[reg]); \
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
1427 } while (0)
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
1428
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
1429 /* Check that we are not stuck in an infinite loop. */
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
1430 #define CHECK_INFINITE_LOOP(pat_cur, string_place) \
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
1431 do { \
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
1432 int failure = TOP_FAILURE_HANDLE(); \
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
1433 /* Check for infinite matching loops */ \
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
1434 while (failure > 0 && \
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
1435 (FAILURE_STR (failure) == string_place \
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
1436 || FAILURE_STR (failure) == NULL)) \
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
1437 { \
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
1438 assert (FAILURE_PAT (failure) >= bufp->buffer \
2349
5fa185a9956e * regex.c: Declare a new type `re_char' used throughout the code for the
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2345
diff changeset
1439 && FAILURE_PAT (failure) <= bufp->buffer + bufp->used); \
2345
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
1440 if (FAILURE_PAT (failure) == pat_cur) \
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
1441 goto fail; \
2349
5fa185a9956e * regex.c: Declare a new type `re_char' used throughout the code for the
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2345
diff changeset
1442 DEBUG_PRINT2 (" Other pattern: %p\n", FAILURE_PAT (failure)); \
2345
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
1443 failure = NEXT_FAILURE_HANDLE(failure); \
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
1444 } \
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
1445 DEBUG_PRINT2 (" Other string: %p\n", FAILURE_STR (failure)); \
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
1446 } while (0)
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
1447
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
1448 /* Push the information about the state we will need
515
69ba3b63e1d1 (gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents: 511
diff changeset
1449 if we ever fail back to it.
69ba3b63e1d1 (gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents: 511
diff changeset
1450
2345
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
1451 Requires variables fail_stack, regstart, regend and
1156
8e1cbb305ddc (TYPICAL_FAILURE_SIZE): Renamed from MAX_FAILURE_ITEMS.
Karl Heuer <kwzh@gnu.org>
parents: 992
diff changeset
1452 num_regs be declared. GROW_FAIL_STACK requires `destination' be
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
1453 declared.
515
69ba3b63e1d1 (gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents: 511
diff changeset
1454
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
1455 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
1456
2345
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
1457 #define PUSH_FAILURE_POINT(pattern, string_place) \
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
1458 do { \
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
1459 char *destination; \
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
1460 /* Must be int, so when we don't save any registers, the arithmetic \
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
1461 of 0 + -1 isn't done as unsigned. */ \
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
1462 \
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
1463 DEBUG_STATEMENT (failure_id++); \
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
1464 DEBUG_STATEMENT (nfailure_points_pushed++); \
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
1465 DEBUG_PRINT2 ("\nPUSH_FAILURE_POINT #%u:\n", failure_id); \
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
1466 DEBUG_PRINT2 (" Before push, next avail: %d\n", (fail_stack).avail); \
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
1467 DEBUG_PRINT2 (" size: %d\n", (fail_stack).size);\
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
1468 \
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
1469 ENSURE_FAIL_STACK (NUM_NONREG_ITEMS); \
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
1470 \
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
1471 DEBUG_PRINT1 ("\n"); \
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
1472 \
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
1473 DEBUG_PRINT2 (" Push frame index: %d\n", fail_stack.frame); \
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
1474 PUSH_FAILURE_INT (fail_stack.frame); \
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
1475 \
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
1476 DEBUG_PRINT2 (" Push string %p: `", string_place); \
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
1477 DEBUG_PRINT_DOUBLE_STRING (string_place, string1, size1, string2, size2);\
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
1478 DEBUG_PRINT1 ("'\n"); \
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
1479 PUSH_FAILURE_POINTER (string_place); \
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
1480 \
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
1481 DEBUG_PRINT2 (" Push pattern %p: ", pattern); \
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
1482 DEBUG_PRINT_COMPILED_PATTERN (bufp, pattern, pend); \
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
1483 PUSH_FAILURE_POINTER (pattern); \
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
1484 \
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
1485 /* Close the frame by moving the frame pointer past it. */ \
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
1486 fail_stack.frame = fail_stack.avail; \
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
1487 } while (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
1488
1156
8e1cbb305ddc (TYPICAL_FAILURE_SIZE): Renamed from MAX_FAILURE_ITEMS.
Karl Heuer <kwzh@gnu.org>
parents: 992
diff changeset
1489 /* Estimate the size of data pushed by a typical failure stack entry.
8e1cbb305ddc (TYPICAL_FAILURE_SIZE): Renamed from MAX_FAILURE_ITEMS.
Karl Heuer <kwzh@gnu.org>
parents: 992
diff changeset
1490 An estimate is all we need, because all we use this for
8e1cbb305ddc (TYPICAL_FAILURE_SIZE): Renamed from MAX_FAILURE_ITEMS.
Karl Heuer <kwzh@gnu.org>
parents: 992
diff changeset
1491 is to choose a limit for how big to make the failure stack. */
8e1cbb305ddc (TYPICAL_FAILURE_SIZE): Renamed from MAX_FAILURE_ITEMS.
Karl Heuer <kwzh@gnu.org>
parents: 992
diff changeset
1492
8e1cbb305ddc (TYPICAL_FAILURE_SIZE): Renamed from MAX_FAILURE_ITEMS.
Karl Heuer <kwzh@gnu.org>
parents: 992
diff changeset
1493 #define TYPICAL_FAILURE_SIZE 20
8e1cbb305ddc (TYPICAL_FAILURE_SIZE): Renamed from MAX_FAILURE_ITEMS.
Karl Heuer <kwzh@gnu.org>
parents: 992
diff changeset
1494
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
1495 /* 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
1496 #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
1497
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
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 /* 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
1500
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 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
1502 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
1503 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
1504 REGSTART, REGEND -- arrays of string positions.
515
69ba3b63e1d1 (gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents: 511
diff changeset
1505
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
1506 Also assumes the variables `fail_stack' and (if debugging), `bufp',
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
1507 `pend', `string1', `size1', `string2', and `size2'. */
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
1508
2345
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
1509 #define POP_FAILURE_POINT(str, pat) \
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
1510 do { \
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
1511 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
1512 \
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 /* 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
1514 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
1515 DEBUG_PRINT2 (" Before pop, next avail: %d\n", fail_stack.avail); \
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
1516 DEBUG_PRINT2 (" size: %d\n", fail_stack.size); \
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
1517 \
2345
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
1518 /* Pop the saved registers. */ \
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
1519 while (fail_stack.frame < fail_stack.avail) \
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
1520 POP_FAILURE_REG (); \
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
1521 \
2345
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
1522 pat = (unsigned char *) POP_FAILURE_POINTER (); \
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
1523 DEBUG_PRINT2 (" Popping pattern %p: ", pat); \
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
1524 DEBUG_PRINT_COMPILED_PATTERN (bufp, pat, pend); \
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
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 /* 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
1527 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
1528 saved NULL, thus retaining our current position in the string. */ \
2349
5fa185a9956e * regex.c: Declare a new type `re_char' used throughout the code for the
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2345
diff changeset
1529 str = (re_char *) POP_FAILURE_POINTER (); \
2345
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
1530 DEBUG_PRINT2 (" Popping string %p: `", str); \
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
1531 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
1532 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
1533 \
2345
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
1534 fail_stack.frame = POP_FAILURE_INT (); \
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
1535 DEBUG_PRINT2 (" Popping frame index: %d\n", fail_stack.frame); \
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
1536 \
2345
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
1537 assert (fail_stack.avail >= 0); \
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
1538 assert (fail_stack.frame <= fail_stack.avail); \
480
998dc67883fb (PUSH_FAILURE_POINT, POP_FAILURE_POINT): Don't push or pop
Richard Stallman <rms@gnu.org>
parents: 463
diff changeset
1539 \
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
1540 DEBUG_STATEMENT (nfailure_points_popped++); \
2345
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
1541 } while (0) /* POP_FAILURE_POINT */
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
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
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 /* Registers are set to a sentinel when they haven't yet matched. */
2345
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
1546 #define REG_UNSET_VALUE NULL
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
1547 #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
1548
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 /* 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
1550
2350
f3edfed6aa96 (re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2349
diff changeset
1551 static void store_op1 _RE_ARGS((re_opcode_t op, unsigned char *loc, int arg));
f3edfed6aa96 (re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2349
diff changeset
1552 static void store_op2 _RE_ARGS((re_opcode_t op, unsigned char *loc,
f3edfed6aa96 (re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2349
diff changeset
1553 int arg1, int arg2));
f3edfed6aa96 (re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2349
diff changeset
1554 static void insert_op1 _RE_ARGS((re_opcode_t op, unsigned char *loc,
f3edfed6aa96 (re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2349
diff changeset
1555 int arg, unsigned char *end));
f3edfed6aa96 (re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2349
diff changeset
1556 static void insert_op2 _RE_ARGS((re_opcode_t op, unsigned char *loc,
f3edfed6aa96 (re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2349
diff changeset
1557 int arg1, int arg2, unsigned char *end));
f3edfed6aa96 (re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2349
diff changeset
1558 static boolean at_begline_loc_p _RE_ARGS((const unsigned char *pattern,
f3edfed6aa96 (re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2349
diff changeset
1559 const unsigned char *p,
f3edfed6aa96 (re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2349
diff changeset
1560 reg_syntax_t syntax));
f3edfed6aa96 (re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2349
diff changeset
1561 static boolean at_endline_loc_p _RE_ARGS((const unsigned char *p,
f3edfed6aa96 (re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2349
diff changeset
1562 const unsigned char *pend,
f3edfed6aa96 (re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2349
diff changeset
1563 reg_syntax_t syntax));
2355
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
1564 static unsigned char *skip_one_char _RE_ARGS((unsigned char *p));
2372
c0c46914f4fe (analyse_first): New function obtained by ripping out most
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2371
diff changeset
1565 static int analyse_first _RE_ARGS((unsigned char *p, unsigned char *pend,
c0c46914f4fe (analyse_first): New function obtained by ripping out most
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2371
diff changeset
1566 char *fastmap, const int multibyte));
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
1567
515
69ba3b63e1d1 (gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents: 511
diff changeset
1568 /* Fetch the next character in the uncompiled pattern---translating it
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
1569 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
1570 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
1571 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
1572 #define PATFETCH(c) \
2350
f3edfed6aa96 (re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2349
diff changeset
1573 do { \
f3edfed6aa96 (re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2349
diff changeset
1574 PATFETCH_RAW (c); \
2375
f25b865f900c * regex.c (PTR_TO_OFFSET) [!emacs]: Remove.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2372
diff changeset
1575 c = TRANSLATE (c); \
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
1576 } 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
1577
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 /* Fetch the next character in the uncompiled pattern, with no
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
1579 translation. */
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
1580 #define PATFETCH_RAW(c) \
2375
f25b865f900c * regex.c (PTR_TO_OFFSET) [!emacs]: Remove.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2372
diff changeset
1581 do { \
f25b865f900c * regex.c (PTR_TO_OFFSET) [!emacs]: Remove.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2372
diff changeset
1582 int len; \
f25b865f900c * regex.c (PTR_TO_OFFSET) [!emacs]: Remove.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2372
diff changeset
1583 if (p == pend) return REG_EEND; \
f25b865f900c * regex.c (PTR_TO_OFFSET) [!emacs]: Remove.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2372
diff changeset
1584 c = RE_STRING_CHAR_AND_LENGTH (p, pend - p, len); \
f25b865f900c * regex.c (PTR_TO_OFFSET) [!emacs]: Remove.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2372
diff changeset
1585 p += len; \
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
1586 } 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
1587
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
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 /* 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
1590 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
1591 `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
1592 when we use a character as a subscript we must make it unsigned. */
501
f29b13c2cefd (TRANSLATE, PATFETCH): Cast elt of `translate'.
Richard Stallman <rms@gnu.org>
parents: 490
diff changeset
1593 #ifndef TRANSLATE
f29b13c2cefd (TRANSLATE, PATFETCH): Cast elt of `translate'.
Richard Stallman <rms@gnu.org>
parents: 490
diff changeset
1594 #define TRANSLATE(d) \
2349
5fa185a9956e * regex.c: Declare a new type `re_char' used throughout the code for the
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2345
diff changeset
1595 (RE_TRANSLATE_P (translate) ? RE_TRANSLATE (translate, (d)) : (d))
501
f29b13c2cefd (TRANSLATE, PATFETCH): Cast elt of `translate'.
Richard Stallman <rms@gnu.org>
parents: 490
diff changeset
1596 #endif
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
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 /* 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
1600
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 /* 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
1602 #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
1603
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
1604 /* Make sure we have at least N more bytes of space in buffer. */
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
1605 #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
1606 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
1607 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
1608
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 /* 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
1610 #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
1611 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
1612 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
1613 *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
1614 } 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
1615
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 /* 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
1618 #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
1619 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
1620 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
1621 *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
1622 *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
1623 } 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
1624
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
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
1626 /* As with BUF_PUSH_2, except for three bytes. */
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
1627 #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
1628 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
1629 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
1630 *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
1631 *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
1632 *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
1633 } 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
1634
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 /* Store a jump with opcode OP at LOC to location TO. We store a
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
1637 relative address offset by the three bytes the jump itself occupies. */
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
1638 #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
1639 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
1640
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 /* 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
1642 #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
1643 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
1644
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
1645 /* Like `STORE_JUMP', but for inserting. Assume `b' is the buffer end. */
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
1646 #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
1647 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
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 /* 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
1650 #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
1651 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
1652
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
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 /* This is not an arbitrary limit: the arguments which represent offsets
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
1655 into the pattern are two bytes long. So if 2^16 bytes turns out to
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
1656 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
1657 #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
1658
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
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 /* 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
1661 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
1662 correct places in the new one. If extending the buffer results in it
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
1663 being larger than MAX_BUF_SIZE, then flag memory exhausted. */
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
1664 #define EXTEND_BUFFER() \
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
1665 do { \
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
1666 unsigned char *old_buffer = bufp->buffer; \
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
1667 if (bufp->allocated == MAX_BUF_SIZE) \
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
1668 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
1669 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
1670 if (bufp->allocated > MAX_BUF_SIZE) \
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
1671 bufp->allocated = MAX_BUF_SIZE; \
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
1672 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
1673 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
1674 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
1675 /* 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
1676 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
1677 { \
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
1678 b = (b - old_buffer) + bufp->buffer; \
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
1679 begalt = (begalt - old_buffer) + bufp->buffer; \
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
1680 if (fixup_alt_jump) \
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
1681 fixup_alt_jump = (fixup_alt_jump - old_buffer) + bufp->buffer;\
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
1682 if (laststart) \
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
1683 laststart = (laststart - old_buffer) + bufp->buffer; \
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
1684 if (pending_exact) \
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
1685 pending_exact = (pending_exact - old_buffer) + bufp->buffer; \
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
1686 } \
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 } 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
1688
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 /* 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
1691 {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
1692 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
1693 #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
1694
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 /* 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
1696 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
1697 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
1698
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 /* 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
1701
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 /* Since offsets can go either forwards or backwards, this type needs to
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
1703 be able to hold values from -(MAX_BUF_SIZE - 1) to MAX_BUF_SIZE - 1. */
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
1704 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
1705
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 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
1707 {
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 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
1709 pattern_offset_t fixup_alt_jump;
515
69ba3b63e1d1 (gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents: 511
diff changeset
1710 pattern_offset_t laststart_offset;
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
1711 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
1712 } 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
1713
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
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 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
1716 {
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 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
1718 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
1719 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
1720 } 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
1721
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
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 #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
1724
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 #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
1726 #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
1727
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
1728 /* The next available element. */
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
1729 #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
1730
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
939
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
1732 /* Structure to manage work area for range table. */
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
1733 struct range_table_work_area
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
1734 {
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
1735 int *table; /* actual work area. */
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
1736 int allocated; /* allocated size for work area in bytes. */
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
1737 int used; /* actually used size in words. */
1933
5ffa81ab1988 [emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents: 1660
diff changeset
1738 int bits; /* flag to record character classes */
939
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
1739 };
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
1740
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
1741 /* Make sure that WORK_AREA can hold more N multibyte characters. */
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
1742 #define EXTEND_RANGE_TABLE_WORK_AREA(work_area, n) \
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
1743 do { \
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
1744 if (((work_area).used + (n)) * sizeof (int) > (work_area).allocated) \
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
1745 { \
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
1746 (work_area).allocated += 16 * sizeof (int); \
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
1747 if ((work_area).table) \
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
1748 (work_area).table \
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
1749 = (int *) realloc ((work_area).table, (work_area).allocated); \
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
1750 else \
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
1751 (work_area).table \
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
1752 = (int *) malloc ((work_area).allocated); \
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
1753 if ((work_area).table == 0) \
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
1754 FREE_STACK_RETURN (REG_ESPACE); \
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
1755 } \
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
1756 } while (0)
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
1757
1933
5ffa81ab1988 [emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents: 1660
diff changeset
1758 #define SET_RANGE_TABLE_WORK_AREA_BIT(work_area, bit) \
5ffa81ab1988 [emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents: 1660
diff changeset
1759 (work_area).bits |= (bit)
5ffa81ab1988 [emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents: 1660
diff changeset
1760
5ffa81ab1988 [emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents: 1660
diff changeset
1761 /* These bits represent the various character classes such as [:alnum:]
5ffa81ab1988 [emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents: 1660
diff changeset
1762 in a charset's range table. */
5ffa81ab1988 [emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents: 1660
diff changeset
1763 #define BIT_ALNUM 0x1
5ffa81ab1988 [emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents: 1660
diff changeset
1764 #define BIT_ALPHA 0x2
5ffa81ab1988 [emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents: 1660
diff changeset
1765 #define BIT_WORD 0x4
1965
058a9ce57dd7 1999-09-04 Richard Stallman <rms@gnu.org>
Dave Love <fx@gnu.org>
parents: 1933
diff changeset
1766 #define BIT_ASCII 0x8
058a9ce57dd7 1999-09-04 Richard Stallman <rms@gnu.org>
Dave Love <fx@gnu.org>
parents: 1933
diff changeset
1767 #define BIT_NONASCII 0x10
1933
5ffa81ab1988 [emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents: 1660
diff changeset
1768 #define BIT_GRAPH 0x20
5ffa81ab1988 [emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents: 1660
diff changeset
1769 #define BIT_LOWER 0x40
5ffa81ab1988 [emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents: 1660
diff changeset
1770 #define BIT_PRINT 0x80
5ffa81ab1988 [emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents: 1660
diff changeset
1771 #define BIT_PUNCT 0x100
5ffa81ab1988 [emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents: 1660
diff changeset
1772 #define BIT_SPACE 0x200
5ffa81ab1988 [emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents: 1660
diff changeset
1773 #define BIT_UPPER 0x400
1965
058a9ce57dd7 1999-09-04 Richard Stallman <rms@gnu.org>
Dave Love <fx@gnu.org>
parents: 1933
diff changeset
1774 #define BIT_UNIBYTE 0x800
058a9ce57dd7 1999-09-04 Richard Stallman <rms@gnu.org>
Dave Love <fx@gnu.org>
parents: 1933
diff changeset
1775 #define BIT_MULTIBYTE 0x1000
1933
5ffa81ab1988 [emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents: 1660
diff changeset
1776
939
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
1777 /* Set a range (RANGE_START, RANGE_END) to WORK_AREA. */
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
1778 #define SET_RANGE_TABLE_WORK_AREA(work_area, range_start, range_end) \
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
1779 do { \
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
1780 EXTEND_RANGE_TABLE_WORK_AREA ((work_area), 2); \
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
1781 (work_area).table[(work_area).used++] = (range_start); \
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
1782 (work_area).table[(work_area).used++] = (range_end); \
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
1783 } while (0)
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
1784
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
1785 /* Free allocated memory for WORK_AREA. */
939
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
1786 #define FREE_RANGE_TABLE_WORK_AREA(work_area) \
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
1787 do { \
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
1788 if ((work_area).table) \
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
1789 free ((work_area).table); \
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
1790 } while (0)
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
1791
1933
5ffa81ab1988 [emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents: 1660
diff changeset
1792 #define CLEAR_RANGE_TABLE_WORK_USED(work_area) ((work_area).used = 0, (work_area).bits = 0)
939
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
1793 #define RANGE_TABLE_WORK_USED(work_area) ((work_area).used)
1933
5ffa81ab1988 [emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents: 1660
diff changeset
1794 #define RANGE_TABLE_WORK_BITS(work_area) ((work_area).bits)
939
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
1795 #define RANGE_TABLE_WORK_ELT(work_area, i) ((work_area).table[i])
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
1796
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
1797
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
1798 /* Set the bit for character C in a list. */
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
1799 #define SET_LIST_BIT(c) \
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
1800 (b[((unsigned char) (c)) / BYTEWIDTH] \
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
1801 |= 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
1802
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 /* Get the next unsigned number in the uncompiled pattern. */
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
1805 #define GET_UNSIGNED_NUMBER(num) \
2350
f3edfed6aa96 (re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2349
diff changeset
1806 do { if (p != pend) \
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
1807 { \
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
1808 PATFETCH (c); \
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
1809 while (ISDIGIT (c)) \
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
1810 { \
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
1811 if (num < 0) \
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
1812 num = 0; \
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
1813 num = num * 10 + c - '0'; \
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
1814 if (p == pend) \
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
1815 break; \
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
1816 PATFETCH (c); \
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
1817 } \
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
1818 } \
2350
f3edfed6aa96 (re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2349
diff changeset
1819 } while (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
1820
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 #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
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 #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
1824 (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
1825 || 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
1826 || 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
1827 || 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
1828 || STREQ (string, "punct") || STREQ (string, "graph") \
1933
5ffa81ab1988 [emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents: 1660
diff changeset
1829 || STREQ (string, "cntrl") || STREQ (string, "blank") \
1965
058a9ce57dd7 1999-09-04 Richard Stallman <rms@gnu.org>
Dave Love <fx@gnu.org>
parents: 1933
diff changeset
1830 || STREQ (string, "word") \
058a9ce57dd7 1999-09-04 Richard Stallman <rms@gnu.org>
Dave Love <fx@gnu.org>
parents: 1933
diff changeset
1831 || STREQ (string, "ascii") || STREQ (string, "nonascii") \
058a9ce57dd7 1999-09-04 Richard Stallman <rms@gnu.org>
Dave Love <fx@gnu.org>
parents: 1933
diff changeset
1832 || STREQ (string, "unibyte") || STREQ (string, "multibyte"))
2350
f3edfed6aa96 (re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2349
diff changeset
1833
f3edfed6aa96 (re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2349
diff changeset
1834 /* QUIT is only used on NTemacs. */
f3edfed6aa96 (re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2349
diff changeset
1835 #if !defined (WINDOWSNT) || !defined (emacs)
f3edfed6aa96 (re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2349
diff changeset
1836 #undef QUIT
f3edfed6aa96 (re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2349
diff changeset
1837 #define QUIT
f3edfed6aa96 (re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2349
diff changeset
1838 #endif
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
1839
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 #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
1841
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 /* 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
1843 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
1844 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
1845 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
1846 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
1847 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
1848
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 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
1850
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 /* 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
1852 That is so we can make them bigger as needed,
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
1853 but never make them smaller. */
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
1854 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
1855
2349
5fa185a9956e * regex.c: Declare a new type `re_char' used throughout the code for the
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2345
diff changeset
1856 static re_char ** regstart, ** regend;
5fa185a9956e * regex.c: Declare a new type `re_char' used throughout the code for the
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2345
diff changeset
1857 static re_char **best_regstart, **best_regend;
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
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 /* Make the register vectors big enough for NUM_REGS registers,
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
1860 but don't make them smaller. */
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
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 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
1863 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
1864 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
1865 {
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 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
1867 {
2349
5fa185a9956e * regex.c: Declare a new type `re_char' used throughout the code for the
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2345
diff changeset
1868 RETALLOC_IF (regstart, num_regs, re_char *);
5fa185a9956e * regex.c: Declare a new type `re_char' used throughout the code for the
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2345
diff changeset
1869 RETALLOC_IF (regend, num_regs, re_char *);
5fa185a9956e * regex.c: Declare a new type `re_char' used throughout the code for the
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2345
diff changeset
1870 RETALLOC_IF (best_regstart, num_regs, re_char *);
5fa185a9956e * regex.c: Declare a new type `re_char' used throughout the code for the
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2345
diff changeset
1871 RETALLOC_IF (best_regend, num_regs, re_char *);
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
1872
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 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
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 }
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
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 #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
1878
2350
f3edfed6aa96 (re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2349
diff changeset
1879 static boolean group_in_compile_stack _RE_ARGS ((compile_stack_type
f3edfed6aa96 (re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2349
diff changeset
1880 compile_stack,
f3edfed6aa96 (re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2349
diff changeset
1881 regnum_t regnum));
f3edfed6aa96 (re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2349
diff changeset
1882
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
1883 /* `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
1884 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
1885
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 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
1887 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
1888
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 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
1890 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
1891 `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
1892 `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
1893 `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
1894 `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
1895 `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
1896 `not_bol' and `not_eol' are zero;
515
69ba3b63e1d1 (gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents: 511
diff changeset
1897
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
1898 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
1899 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
1900
2345
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
1901 /* Insert the `jump' from the end of last alternative to "here".
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
1902 The space for the jump has already been allocated. */
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
1903 #define FIXUP_ALT_JUMP() \
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
1904 do { \
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
1905 if (fixup_alt_jump) \
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
1906 STORE_JUMP (jump, fixup_alt_jump, b); \
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
1907 } while (0)
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
1908
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
1909
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
1910 /* 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
1911 #define FREE_STACK_RETURN(value) \
939
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
1912 do { \
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
1913 FREE_RANGE_TABLE_WORK_AREA (range_table_work); \
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
1914 free (compile_stack.stack); \
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
1915 return value; \
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
1916 } while (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
1917
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 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
1919 regex_compile (pattern, size, syntax, bufp)
2349
5fa185a9956e * regex.c: Declare a new type `re_char' used throughout the code for the
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2345
diff changeset
1920 re_char *pattern;
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
1921 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
1922 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
1923 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
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 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
1926 `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
1927 they can be reliably used as array indices. */
939
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
1928 register unsigned int c, c1;
515
69ba3b63e1d1 (gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents: 511
diff changeset
1929
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
1930 /* A random temporary spot in PATTERN. */
2349
5fa185a9956e * regex.c: Declare a new type `re_char' used throughout the code for the
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2345
diff changeset
1931 re_char *p1;
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
1932
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 /* 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
1934 register unsigned char *b;
515
69ba3b63e1d1 (gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents: 511
diff changeset
1935
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
1936 /* 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
1937 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
1938
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 /* Points to the current (ending) position in the pattern. */
1440
ba6fdbf593bb (regex_compile): Declare p with non-const type on AIX.
Richard Stallman <rms@gnu.org>
parents: 1383
diff changeset
1940 #ifdef AIX
ba6fdbf593bb (regex_compile): Declare p with non-const type on AIX.
Richard Stallman <rms@gnu.org>
parents: 1383
diff changeset
1941 /* `const' makes AIX compiler fail. */
2349
5fa185a9956e * regex.c: Declare a new type `re_char' used throughout the code for the
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2345
diff changeset
1942 unsigned char *p = pattern;
1440
ba6fdbf593bb (regex_compile): Declare p with non-const type on AIX.
Richard Stallman <rms@gnu.org>
parents: 1383
diff changeset
1943 #else
2349
5fa185a9956e * regex.c: Declare a new type `re_char' used throughout the code for the
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2345
diff changeset
1944 re_char *p = pattern;
1440
ba6fdbf593bb (regex_compile): Declare p with non-const type on AIX.
Richard Stallman <rms@gnu.org>
parents: 1383
diff changeset
1945 #endif
2349
5fa185a9956e * regex.c: Declare a new type `re_char' used throughout the code for the
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2345
diff changeset
1946 re_char *pend = pattern + size;
515
69ba3b63e1d1 (gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents: 511
diff changeset
1947
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
1948 /* How to translate the characters in the pattern. */
501
f29b13c2cefd (TRANSLATE, PATFETCH): Cast elt of `translate'.
Richard Stallman <rms@gnu.org>
parents: 490
diff changeset
1949 RE_TRANSLATE_TYPE translate = bufp->translate;
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
1950
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 /* 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
1952 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
1953 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
1954 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
1955 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
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 /* 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
1958 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
1959 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
1960 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
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 /* 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
1963 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
1964
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 /* 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
1966 which to go back if the interval is invalid. */
2349
5fa185a9956e * regex.c: Declare a new type `re_char' used throughout the code for the
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2345
diff changeset
1967 re_char *beg_interval;
515
69ba3b63e1d1 (gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents: 511
diff changeset
1968
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
1969 /* Address of the place where a forward jump should go to the end of
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
1970 the containing expression. Each alternative of an `or' -- except the
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
1971 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
1972 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
1973
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 /* 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
1975 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
1976 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
1977 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
1978
939
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
1979 /* Work area for range table of charset. */
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
1980 struct range_table_work_area range_table_work;
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
1981
2375
f25b865f900c * regex.c (PTR_TO_OFFSET) [!emacs]: Remove.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2372
diff changeset
1982 /* If the object matched can contain multibyte characters. */
f25b865f900c * regex.c (PTR_TO_OFFSET) [!emacs]: Remove.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2372
diff changeset
1983 const boolean multibyte = RE_MULTIBYTE_P (bufp);
f25b865f900c * regex.c (PTR_TO_OFFSET) [!emacs]: Remove.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2372
diff changeset
1984
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
1985 #ifdef DEBUG
2350
f3edfed6aa96 (re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2349
diff changeset
1986 debug++;
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
1987 DEBUG_PRINT1 ("\nCompiling pattern: ");
2350
f3edfed6aa96 (re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2349
diff changeset
1988 if (debug > 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
1989 {
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 unsigned debug_count;
515
69ba3b63e1d1 (gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents: 511
diff changeset
1991
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
1992 for (debug_count = 0; debug_count < size; debug_count++)
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
1993 putchar (pattern[debug_count]);
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
1994 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
1995 }
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 #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
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 /* 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
1999 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
2000 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
2001 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
2002
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 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
2004 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
2005
939
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
2006 range_table_work.table = 0;
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
2007 range_table_work.allocated = 0;
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
2008
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
2009 /* 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
2010 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
2011 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
2012 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
2013
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 /* 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
2015 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
2016 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
2017 bufp->used = 0;
515
69ba3b63e1d1 (gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents: 511
diff changeset
2018
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
2019 /* Always count groups, whether or not bufp->no_sub is set. */
515
69ba3b63e1d1 (gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents: 511
diff changeset
2020 bufp->re_nsub = 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
2021
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 #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
2023 /* 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
2024 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
2025 #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
2026
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 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
2028 {
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 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
2030 { /* If zero allocated, but buffer is non-null, try to realloc
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2031 enough space. This loses if buffer's address is bogus, but
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2032 that is the user's responsibility. */
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2033 RETALLOC (bufp->buffer, INIT_BUF_SIZE, unsigned char);
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2034 }
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
2035 else
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2036 { /* Caller did not allocate a buffer. Do it for them. */
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2037 bufp->buffer = TALLOC (INIT_BUF_SIZE, unsigned char);
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2038 }
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
2039 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
2040
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 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
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
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 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
2045
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 /* 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
2047 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
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 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
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 switch (c)
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2052 {
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2053 case '^':
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2054 {
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2055 if ( /* If at start of pattern, it's an operator. */
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2056 p == pattern + 1
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2057 /* If context independent, it's an operator. */
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2058 || syntax & RE_CONTEXT_INDEP_ANCHORS
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2059 /* Otherwise, depends on what's come before. */
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2060 || at_begline_loc_p (pattern, p, syntax))
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2061 BUF_PUSH (begline);
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2062 else
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2063 goto normal_char;
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2064 }
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2065 break;
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2066
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2067
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2068 case '$':
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2069 {
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2070 if ( /* If at end of pattern, it's an operator. */
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2071 p == pend
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2072 /* If context independent, it's an operator. */
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2073 || syntax & RE_CONTEXT_INDEP_ANCHORS
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2074 /* Otherwise, depends on what's next. */
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2075 || at_endline_loc_p (p, pend, syntax))
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2076 BUF_PUSH (endline);
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2077 else
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2078 goto normal_char;
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2079 }
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2080 break;
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
2081
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 case '+':
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2084 case '?':
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2085 if ((syntax & RE_BK_PLUS_QM)
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2086 || (syntax & RE_LIMITED_OPS))
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2087 goto normal_char;
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2088 handle_plus:
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2089 case '*':
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2090 /* If there is no previous pattern... */
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2091 if (!laststart)
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2092 {
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2093 if (syntax & RE_CONTEXT_INVALID_OPS)
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2094 FREE_STACK_RETURN (REG_BADRPT);
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2095 else if (!(syntax & RE_CONTEXT_INDEP_OPS))
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2096 goto normal_char;
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2097 }
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2098
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2099 {
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2100 /* 1 means zero (many) matches is allowed. */
2349
5fa185a9956e * regex.c: Declare a new type `re_char' used throughout the code for the
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2345
diff changeset
2101 boolean zero_times_ok = 0, many_times_ok = 0;
5fa185a9956e * regex.c: Declare a new type `re_char' used throughout the code for the
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2345
diff changeset
2102 boolean greedy = 1;
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2103
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2104 /* If there is a sequence of repetition chars, collapse it
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2105 down to just one (the right one). We can't combine
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2106 interval operators with these because of, e.g., `a{2}*',
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2107 which should only match an even number of `a's. */
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2108
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2109 for (;;)
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2110 {
2034
00db7733320d 1999-12-15 Kenichi Handa <handa@etl.go.jp>
Dave Love <fx@gnu.org>
parents: 1972
diff changeset
2111 if (!(syntax & RE_ALL_GREEDY)
00db7733320d 1999-12-15 Kenichi Handa <handa@etl.go.jp>
Dave Love <fx@gnu.org>
parents: 1972
diff changeset
2112 && c == '?' && (zero_times_ok || many_times_ok))
00db7733320d 1999-12-15 Kenichi Handa <handa@etl.go.jp>
Dave Love <fx@gnu.org>
parents: 1972
diff changeset
2113 greedy = 0;
00db7733320d 1999-12-15 Kenichi Handa <handa@etl.go.jp>
Dave Love <fx@gnu.org>
parents: 1972
diff changeset
2114 else
00db7733320d 1999-12-15 Kenichi Handa <handa@etl.go.jp>
Dave Love <fx@gnu.org>
parents: 1972
diff changeset
2115 {
00db7733320d 1999-12-15 Kenichi Handa <handa@etl.go.jp>
Dave Love <fx@gnu.org>
parents: 1972
diff changeset
2116 zero_times_ok |= c != '+';
00db7733320d 1999-12-15 Kenichi Handa <handa@etl.go.jp>
Dave Love <fx@gnu.org>
parents: 1972
diff changeset
2117 many_times_ok |= c != '?';
00db7733320d 1999-12-15 Kenichi Handa <handa@etl.go.jp>
Dave Love <fx@gnu.org>
parents: 1972
diff changeset
2118 }
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2119
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2120 if (p == pend)
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2121 break;
2371
3274fb530385 (REGEX_FREE_STACK, RESET_FAIL_STACK): Make them usable as an expression.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2370
diff changeset
2122 else if (*p == '*'
3274fb530385 (REGEX_FREE_STACK, RESET_FAIL_STACK): Make them usable as an expression.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2370
diff changeset
2123 || (!(syntax & RE_BK_PLUS_QM)
3274fb530385 (REGEX_FREE_STACK, RESET_FAIL_STACK): Make them usable as an expression.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2370
diff changeset
2124 && (*p == '+' || *p == '?')))
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2125 ;
2371
3274fb530385 (REGEX_FREE_STACK, RESET_FAIL_STACK): Make them usable as an expression.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2370
diff changeset
2126 else if (syntax & RE_BK_PLUS_QM && *p == '\\')
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2127 {
2371
3274fb530385 (REGEX_FREE_STACK, RESET_FAIL_STACK): Make them usable as an expression.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2370
diff changeset
2128 if (p+1 == pend)
3274fb530385 (REGEX_FREE_STACK, RESET_FAIL_STACK): Make them usable as an expression.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2370
diff changeset
2129 FREE_STACK_RETURN (REG_EESCAPE);
3274fb530385 (REGEX_FREE_STACK, RESET_FAIL_STACK): Make them usable as an expression.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2370
diff changeset
2130 if (p[1] == '+' || p[1] == '?')
3274fb530385 (REGEX_FREE_STACK, RESET_FAIL_STACK): Make them usable as an expression.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2370
diff changeset
2131 PATFETCH (c); /* Gobble up the backslash. */
3274fb530385 (REGEX_FREE_STACK, RESET_FAIL_STACK): Make them usable as an expression.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2370
diff changeset
2132 else
3274fb530385 (REGEX_FREE_STACK, RESET_FAIL_STACK): Make them usable as an expression.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2370
diff changeset
2133 break;
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2134 }
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2135 else
2371
3274fb530385 (REGEX_FREE_STACK, RESET_FAIL_STACK): Make them usable as an expression.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2370
diff changeset
2136 break;
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2137 /* If we get here, we found another repeat character. */
2371
3274fb530385 (REGEX_FREE_STACK, RESET_FAIL_STACK): Make them usable as an expression.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2370
diff changeset
2138 PATFETCH (c);
3274fb530385 (REGEX_FREE_STACK, RESET_FAIL_STACK): Make them usable as an expression.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2370
diff changeset
2139 }
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2140
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2141 /* Star, etc. applied to an empty pattern is equivalent
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2142 to an empty pattern. */
2355
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
2143 if (!laststart || laststart == b)
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2144 break;
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2145
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2146 /* Now we know whether or not zero matches is allowed
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2147 and also whether or not two or more matches is allowed. */
2034
00db7733320d 1999-12-15 Kenichi Handa <handa@etl.go.jp>
Dave Love <fx@gnu.org>
parents: 1972
diff changeset
2148 if (greedy)
00db7733320d 1999-12-15 Kenichi Handa <handa@etl.go.jp>
Dave Love <fx@gnu.org>
parents: 1972
diff changeset
2149 {
2350
f3edfed6aa96 (re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2349
diff changeset
2150 if (many_times_ok)
2355
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
2151 {
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
2152 boolean simple = skip_one_char (laststart) == b;
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
2153 unsigned int startoffset = 0;
2372
c0c46914f4fe (analyse_first): New function obtained by ripping out most
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2371
diff changeset
2154 re_opcode_t ofj =
c0c46914f4fe (analyse_first): New function obtained by ripping out most
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2371
diff changeset
2155 (simple || !analyse_first (laststart, b, NULL, 0)) ?
c0c46914f4fe (analyse_first): New function obtained by ripping out most
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2371
diff changeset
2156 on_failure_jump : on_failure_jump_loop;
2355
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
2157 assert (skip_one_char (laststart) <= b);
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
2158
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
2159 if (!zero_times_ok && simple)
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
2160 { /* Since simple * loops can be made faster by using
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
2161 on_failure_keep_string_jump, we turn simple P+
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
2162 into PP* if P is simple. */
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
2163 unsigned char *p1, *p2;
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
2164 startoffset = b - laststart;
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
2165 GET_BUFFER_SPACE (startoffset);
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
2166 p1 = b; p2 = laststart;
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
2167 while (p2 < p1)
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
2168 *b++ = *p2++;
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
2169 zero_times_ok = 1;
2350
f3edfed6aa96 (re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2349
diff changeset
2170 }
2355
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
2171
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
2172 GET_BUFFER_SPACE (6);
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
2173 if (!zero_times_ok)
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
2174 /* A + loop. */
2372
c0c46914f4fe (analyse_first): New function obtained by ripping out most
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2371
diff changeset
2175 STORE_JUMP (ofj, b, b + 6);
2350
f3edfed6aa96 (re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2349
diff changeset
2176 else
2355
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
2177 /* Simple * loops can use on_failure_keep_string_jump
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
2178 depending on what follows. But since we don't know
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
2179 that yet, we leave the decision up to
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
2180 on_failure_jump_smart. */
2372
c0c46914f4fe (analyse_first): New function obtained by ripping out most
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2371
diff changeset
2181 INSERT_JUMP (simple ? on_failure_jump_smart : ofj,
2355
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
2182 laststart + startoffset, b + 6);
2350
f3edfed6aa96 (re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2349
diff changeset
2183 b += 3;
2355
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
2184 STORE_JUMP (jump, b, laststart + startoffset);
2350
f3edfed6aa96 (re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2349
diff changeset
2185 b += 3;
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2186 }
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2187 else
2350
f3edfed6aa96 (re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2349
diff changeset
2188 {
2355
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
2189 /* A simple ? pattern. */
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
2190 assert (zero_times_ok);
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
2191 GET_BUFFER_SPACE (3);
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
2192 INSERT_JUMP (on_failure_jump, laststart, b + 3);
2350
f3edfed6aa96 (re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2349
diff changeset
2193 b += 3;
f3edfed6aa96 (re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2349
diff changeset
2194 }
2034
00db7733320d 1999-12-15 Kenichi Handa <handa@etl.go.jp>
Dave Love <fx@gnu.org>
parents: 1972
diff changeset
2195 }
00db7733320d 1999-12-15 Kenichi Handa <handa@etl.go.jp>
Dave Love <fx@gnu.org>
parents: 1972
diff changeset
2196 else /* not greedy */
00db7733320d 1999-12-15 Kenichi Handa <handa@etl.go.jp>
Dave Love <fx@gnu.org>
parents: 1972
diff changeset
2197 { /* I wish the greedy and non-greedy cases could be merged. */
00db7733320d 1999-12-15 Kenichi Handa <handa@etl.go.jp>
Dave Love <fx@gnu.org>
parents: 1972
diff changeset
2198
2370
d8ded9c0e20c (enum re_opcode_t): New opcode on_failure_jump_nastyloop.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2359
diff changeset
2199 GET_BUFFER_SPACE (7); /* We might use less. */
2034
00db7733320d 1999-12-15 Kenichi Handa <handa@etl.go.jp>
Dave Love <fx@gnu.org>
parents: 1972
diff changeset
2200 if (many_times_ok)
00db7733320d 1999-12-15 Kenichi Handa <handa@etl.go.jp>
Dave Love <fx@gnu.org>
parents: 1972
diff changeset
2201 {
2372
c0c46914f4fe (analyse_first): New function obtained by ripping out most
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2371
diff changeset
2202 boolean emptyp = analyse_first (laststart, b, NULL, 0);
c0c46914f4fe (analyse_first): New function obtained by ripping out most
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2371
diff changeset
2203
2345
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
2204 /* The non-greedy multiple match looks like a repeat..until:
2034
00db7733320d 1999-12-15 Kenichi Handa <handa@etl.go.jp>
Dave Love <fx@gnu.org>
parents: 1972
diff changeset
2205 we only need a conditional jump at the end of the loop */
2372
c0c46914f4fe (analyse_first): New function obtained by ripping out most
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2371
diff changeset
2206 if (emptyp) BUF_PUSH (no_op);
c0c46914f4fe (analyse_first): New function obtained by ripping out most
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2371
diff changeset
2207 STORE_JUMP (emptyp ? on_failure_jump_nastyloop
c0c46914f4fe (analyse_first): New function obtained by ripping out most
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2371
diff changeset
2208 : on_failure_jump, b, laststart);
2034
00db7733320d 1999-12-15 Kenichi Handa <handa@etl.go.jp>
Dave Love <fx@gnu.org>
parents: 1972
diff changeset
2209 b += 3;
00db7733320d 1999-12-15 Kenichi Handa <handa@etl.go.jp>
Dave Love <fx@gnu.org>
parents: 1972
diff changeset
2210 if (zero_times_ok)
00db7733320d 1999-12-15 Kenichi Handa <handa@etl.go.jp>
Dave Love <fx@gnu.org>
parents: 1972
diff changeset
2211 {
00db7733320d 1999-12-15 Kenichi Handa <handa@etl.go.jp>
Dave Love <fx@gnu.org>
parents: 1972
diff changeset
2212 /* The repeat...until naturally matches one or more.
00db7733320d 1999-12-15 Kenichi Handa <handa@etl.go.jp>
Dave Love <fx@gnu.org>
parents: 1972
diff changeset
2213 To also match zero times, we need to first jump to
00db7733320d 1999-12-15 Kenichi Handa <handa@etl.go.jp>
Dave Love <fx@gnu.org>
parents: 1972
diff changeset
2214 the end of the loop (its conditional jump). */
00db7733320d 1999-12-15 Kenichi Handa <handa@etl.go.jp>
Dave Love <fx@gnu.org>
parents: 1972
diff changeset
2215 INSERT_JUMP (jump, laststart, b);
00db7733320d 1999-12-15 Kenichi Handa <handa@etl.go.jp>
Dave Love <fx@gnu.org>
parents: 1972
diff changeset
2216 b += 3;
00db7733320d 1999-12-15 Kenichi Handa <handa@etl.go.jp>
Dave Love <fx@gnu.org>
parents: 1972
diff changeset
2217 }
00db7733320d 1999-12-15 Kenichi Handa <handa@etl.go.jp>
Dave Love <fx@gnu.org>
parents: 1972
diff changeset
2218 }
00db7733320d 1999-12-15 Kenichi Handa <handa@etl.go.jp>
Dave Love <fx@gnu.org>
parents: 1972
diff changeset
2219 else
00db7733320d 1999-12-15 Kenichi Handa <handa@etl.go.jp>
Dave Love <fx@gnu.org>
parents: 1972
diff changeset
2220 {
00db7733320d 1999-12-15 Kenichi Handa <handa@etl.go.jp>
Dave Love <fx@gnu.org>
parents: 1972
diff changeset
2221 /* non-greedy a?? */
00db7733320d 1999-12-15 Kenichi Handa <handa@etl.go.jp>
Dave Love <fx@gnu.org>
parents: 1972
diff changeset
2222 INSERT_JUMP (jump, laststart, b + 3);
00db7733320d 1999-12-15 Kenichi Handa <handa@etl.go.jp>
Dave Love <fx@gnu.org>
parents: 1972
diff changeset
2223 b += 3;
00db7733320d 1999-12-15 Kenichi Handa <handa@etl.go.jp>
Dave Love <fx@gnu.org>
parents: 1972
diff changeset
2224 INSERT_JUMP (on_failure_jump, laststart, laststart + 6);
00db7733320d 1999-12-15 Kenichi Handa <handa@etl.go.jp>
Dave Love <fx@gnu.org>
parents: 1972
diff changeset
2225 b += 3;
00db7733320d 1999-12-15 Kenichi Handa <handa@etl.go.jp>
Dave Love <fx@gnu.org>
parents: 1972
diff changeset
2226 }
00db7733320d 1999-12-15 Kenichi Handa <handa@etl.go.jp>
Dave Love <fx@gnu.org>
parents: 1972
diff changeset
2227 }
00db7733320d 1999-12-15 Kenichi Handa <handa@etl.go.jp>
Dave Love <fx@gnu.org>
parents: 1972
diff changeset
2228 }
2355
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
2229 pending_exact = 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
2230 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
2231
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
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 case '.':
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2234 laststart = b;
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2235 BUF_PUSH (anychar);
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2236 break;
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2237
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2238
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2239 case '[':
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2240 {
939
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
2241 CLEAR_RANGE_TABLE_WORK_USED (range_table_work);
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
2242
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2243 if (p == pend) FREE_STACK_RETURN (REG_EBRACK);
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2244
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2245 /* Ensure that we have enough space to push a charset: the
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2246 opcode, the length count, and the bitset; 34 bytes in all. */
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
2247 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
2248
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2249 laststart = b;
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2250
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2251 /* We test `*p == '^' twice, instead of using an if
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2252 statement, so we only need one BUF_PUSH. */
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2253 BUF_PUSH (*p == '^' ? charset_not : charset);
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2254 if (*p == '^')
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2255 p++;
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2256
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2257 /* Remember the first position in the bracket expression. */
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2258 p1 = p;
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2259
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2260 /* Push the number of bytes in the bitmap. */
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2261 BUF_PUSH ((1 << BYTEWIDTH) / BYTEWIDTH);
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2262
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2263 /* Clear the whole map. */
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2264 bzero (b, (1 << BYTEWIDTH) / BYTEWIDTH);
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2265
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2266 /* charset_not matches newline according to a syntax bit. */
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2267 if ((re_opcode_t) b[-2] == charset_not
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2268 && (syntax & RE_HAT_LISTS_NOT_NEWLINE))
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2269 SET_LIST_BIT ('\n');
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2270
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2271 /* Read in characters and ranges, setting map bits. */
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2272 for (;;)
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2273 {
939
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
2274 boolean escaped_char = false;
2375
f25b865f900c * regex.c (PTR_TO_OFFSET) [!emacs]: Remove.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2372
diff changeset
2275 const unsigned char *p2 = p;
939
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
2276
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2277 if (p == pend) FREE_STACK_RETURN (REG_EBRACK);
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2278
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2279 PATFETCH (c);
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2280
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2281 /* \ might escape characters inside [...] and [^...]. */
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2282 if ((syntax & RE_BACKSLASH_ESCAPE_IN_LISTS) && c == '\\')
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2283 {
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2284 if (p == pend) FREE_STACK_RETURN (REG_EESCAPE);
679
b088267ea1c8 Clean up whitespace.
Richard Stallman <rms@gnu.org>
parents: 678
diff changeset
2285
b088267ea1c8 Clean up whitespace.
Richard Stallman <rms@gnu.org>
parents: 678
diff changeset
2286 PATFETCH (c);
939
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
2287 escaped_char = true;
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2288 }
939
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
2289 else
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
2290 {
992
03e78eed4997 Whitespace change.
Richard Stallman <rms@gnu.org>
parents: 963
diff changeset
2291 /* Could be the end of the bracket expression. If it's
03e78eed4997 Whitespace change.
Richard Stallman <rms@gnu.org>
parents: 963
diff changeset
2292 not (i.e., when the bracket expression is `[]' so
03e78eed4997 Whitespace change.
Richard Stallman <rms@gnu.org>
parents: 963
diff changeset
2293 far), the ']' character bit gets set way below. */
2375
f25b865f900c * regex.c (PTR_TO_OFFSET) [!emacs]: Remove.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2372
diff changeset
2294 if (c == ']' && p2 != p1)
992
03e78eed4997 Whitespace change.
Richard Stallman <rms@gnu.org>
parents: 963
diff changeset
2295 break;
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2296 }
939
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
2297
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
2298 /* What should we do for the character which is
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
2299 greater than 0x7F, but not BASE_LEADING_CODE_P?
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
2300 XXX */
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
2301
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2302 /* See if we're at the beginning of a possible character
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2303 class. */
939
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
2304
2375
f25b865f900c * regex.c (PTR_TO_OFFSET) [!emacs]: Remove.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2372
diff changeset
2305 if (!escaped_char &&
f25b865f900c * regex.c (PTR_TO_OFFSET) [!emacs]: Remove.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2372
diff changeset
2306 syntax & RE_CHAR_CLASSES && c == '[' && *p == ':')
992
03e78eed4997 Whitespace change.
Richard Stallman <rms@gnu.org>
parents: 963
diff changeset
2307 {
03e78eed4997 Whitespace change.
Richard Stallman <rms@gnu.org>
parents: 963
diff changeset
2308 /* Leave room for the null. */
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2309 char str[CHAR_CLASS_MAX_LENGTH + 1];
2371
3274fb530385 (REGEX_FREE_STACK, RESET_FAIL_STACK): Make them usable as an expression.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2370
diff changeset
2310 const unsigned char *class_beg;
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2311
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2312 PATFETCH (c);
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2313 c1 = 0;
2371
3274fb530385 (REGEX_FREE_STACK, RESET_FAIL_STACK): Make them usable as an expression.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2370
diff changeset
2314 class_beg = p;
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2315
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2316 /* If pattern is `[[:'. */
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2317 if (p == pend) FREE_STACK_RETURN (REG_EBRACK);
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2318
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2319 for (;;)
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2320 {
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2321 PATFETCH (c);
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2322 if (c == ':' || c == ']' || p == pend
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2323 || c1 == CHAR_CLASS_MAX_LENGTH)
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2324 break;
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2325 str[c1++] = c;
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2326 }
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2327 str[c1] = '\0';
939
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
2328
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
2329 /* If isn't a word bracketed by `[:' and `:]':
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
2330 undo the ending character, the letters, and
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
2331 leave the leading `:' and `[' (but set bits for
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
2332 them). */
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2333 if (c == ':' && *p == ']')
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2334 {
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2335 int ch;
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2336 boolean is_alnum = STREQ (str, "alnum");
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2337 boolean is_alpha = STREQ (str, "alpha");
1965
058a9ce57dd7 1999-09-04 Richard Stallman <rms@gnu.org>
Dave Love <fx@gnu.org>
parents: 1933
diff changeset
2338 boolean is_ascii = STREQ (str, "ascii");
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2339 boolean is_blank = STREQ (str, "blank");
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2340 boolean is_cntrl = STREQ (str, "cntrl");
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2341 boolean is_digit = STREQ (str, "digit");
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2342 boolean is_graph = STREQ (str, "graph");
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2343 boolean is_lower = STREQ (str, "lower");
1965
058a9ce57dd7 1999-09-04 Richard Stallman <rms@gnu.org>
Dave Love <fx@gnu.org>
parents: 1933
diff changeset
2344 boolean is_multibyte = STREQ (str, "multibyte");
058a9ce57dd7 1999-09-04 Richard Stallman <rms@gnu.org>
Dave Love <fx@gnu.org>
parents: 1933
diff changeset
2345 boolean is_nonascii = STREQ (str, "nonascii");
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2346 boolean is_print = STREQ (str, "print");
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2347 boolean is_punct = STREQ (str, "punct");
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2348 boolean is_space = STREQ (str, "space");
1965
058a9ce57dd7 1999-09-04 Richard Stallman <rms@gnu.org>
Dave Love <fx@gnu.org>
parents: 1933
diff changeset
2349 boolean is_unibyte = STREQ (str, "unibyte");
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2350 boolean is_upper = STREQ (str, "upper");
1965
058a9ce57dd7 1999-09-04 Richard Stallman <rms@gnu.org>
Dave Love <fx@gnu.org>
parents: 1933
diff changeset
2351 boolean is_word = STREQ (str, "word");
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2352 boolean is_xdigit = STREQ (str, "xdigit");
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2353
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2354 if (!IS_CHAR_CLASS (str))
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
2355 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
2356
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2357 /* Throw away the ] at the end of the character
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2358 class. */
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2359 PATFETCH (c);
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2360
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2361 if (p == pend) FREE_STACK_RETURN (REG_EBRACK);
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2362
1933
5ffa81ab1988 [emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents: 1660
diff changeset
2363 /* Most character classes in a multibyte match
5ffa81ab1988 [emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents: 1660
diff changeset
2364 just set a flag. Exceptions are is_blank,
5ffa81ab1988 [emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents: 1660
diff changeset
2365 is_digit, is_cntrl, and is_xdigit, since
5ffa81ab1988 [emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents: 1660
diff changeset
2366 they can only match ASCII characters. We
5ffa81ab1988 [emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents: 1660
diff changeset
2367 don't need to handle them for multibyte. */
5ffa81ab1988 [emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents: 1660
diff changeset
2368
2375
f25b865f900c * regex.c (PTR_TO_OFFSET) [!emacs]: Remove.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2372
diff changeset
2369 if (multibyte)
1933
5ffa81ab1988 [emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents: 1660
diff changeset
2370 {
5ffa81ab1988 [emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents: 1660
diff changeset
2371 int bit = 0;
5ffa81ab1988 [emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents: 1660
diff changeset
2372
5ffa81ab1988 [emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents: 1660
diff changeset
2373 if (is_alnum) bit = BIT_ALNUM;
5ffa81ab1988 [emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents: 1660
diff changeset
2374 if (is_alpha) bit = BIT_ALPHA;
1965
058a9ce57dd7 1999-09-04 Richard Stallman <rms@gnu.org>
Dave Love <fx@gnu.org>
parents: 1933
diff changeset
2375 if (is_ascii) bit = BIT_ASCII;
1933
5ffa81ab1988 [emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents: 1660
diff changeset
2376 if (is_graph) bit = BIT_GRAPH;
5ffa81ab1988 [emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents: 1660
diff changeset
2377 if (is_lower) bit = BIT_LOWER;
1965
058a9ce57dd7 1999-09-04 Richard Stallman <rms@gnu.org>
Dave Love <fx@gnu.org>
parents: 1933
diff changeset
2378 if (is_multibyte) bit = BIT_MULTIBYTE;
058a9ce57dd7 1999-09-04 Richard Stallman <rms@gnu.org>
Dave Love <fx@gnu.org>
parents: 1933
diff changeset
2379 if (is_nonascii) bit = BIT_NONASCII;
1933
5ffa81ab1988 [emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents: 1660
diff changeset
2380 if (is_print) bit = BIT_PRINT;
5ffa81ab1988 [emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents: 1660
diff changeset
2381 if (is_punct) bit = BIT_PUNCT;
5ffa81ab1988 [emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents: 1660
diff changeset
2382 if (is_space) bit = BIT_SPACE;
1965
058a9ce57dd7 1999-09-04 Richard Stallman <rms@gnu.org>
Dave Love <fx@gnu.org>
parents: 1933
diff changeset
2383 if (is_unibyte) bit = BIT_UNIBYTE;
1933
5ffa81ab1988 [emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents: 1660
diff changeset
2384 if (is_upper) bit = BIT_UPPER;
5ffa81ab1988 [emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents: 1660
diff changeset
2385 if (is_word) bit = BIT_WORD;
5ffa81ab1988 [emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents: 1660
diff changeset
2386 if (bit)
5ffa81ab1988 [emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents: 1660
diff changeset
2387 SET_RANGE_TABLE_WORK_AREA_BIT (range_table_work,
5ffa81ab1988 [emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents: 1660
diff changeset
2388 bit);
5ffa81ab1988 [emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents: 1660
diff changeset
2389 }
5ffa81ab1988 [emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents: 1660
diff changeset
2390
5ffa81ab1988 [emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents: 1660
diff changeset
2391 /* Handle character classes for ASCII characters. */
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2392 for (ch = 0; ch < 1 << BYTEWIDTH; ch++)
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2393 {
692
1036844e8833 (regex_compile): Use TRANSLATE before calling SET_LIST_BIT.
Richard Stallman <rms@gnu.org>
parents: 680
diff changeset
2394 int translated = TRANSLATE (ch);
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
2395 /* 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
2396 avoid an arbitrary limit in some compiler. */
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2397 if ( (is_alnum && ISALNUM (ch))
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2398 || (is_alpha && ISALPHA (ch))
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2399 || (is_blank && ISBLANK (ch))
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2400 || (is_cntrl && ISCNTRL (ch)))
692
1036844e8833 (regex_compile): Use TRANSLATE before calling SET_LIST_BIT.
Richard Stallman <rms@gnu.org>
parents: 680
diff changeset
2401 SET_LIST_BIT (translated);
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
2402 if ( (is_digit && ISDIGIT (ch))
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2403 || (is_graph && ISGRAPH (ch))
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2404 || (is_lower && ISLOWER (ch))
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2405 || (is_print && ISPRINT (ch)))
692
1036844e8833 (regex_compile): Use TRANSLATE before calling SET_LIST_BIT.
Richard Stallman <rms@gnu.org>
parents: 680
diff changeset
2406 SET_LIST_BIT (translated);
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
2407 if ( (is_punct && ISPUNCT (ch))
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2408 || (is_space && ISSPACE (ch))
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2409 || (is_upper && ISUPPER (ch))
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2410 || (is_xdigit && ISXDIGIT (ch)))
692
1036844e8833 (regex_compile): Use TRANSLATE before calling SET_LIST_BIT.
Richard Stallman <rms@gnu.org>
parents: 680
diff changeset
2411 SET_LIST_BIT (translated);
1965
058a9ce57dd7 1999-09-04 Richard Stallman <rms@gnu.org>
Dave Love <fx@gnu.org>
parents: 1933
diff changeset
2412 if ( (is_ascii && IS_REAL_ASCII (ch))
058a9ce57dd7 1999-09-04 Richard Stallman <rms@gnu.org>
Dave Love <fx@gnu.org>
parents: 1933
diff changeset
2413 || (is_nonascii && !IS_REAL_ASCII (ch))
058a9ce57dd7 1999-09-04 Richard Stallman <rms@gnu.org>
Dave Love <fx@gnu.org>
parents: 1933
diff changeset
2414 || (is_unibyte && ISUNIBYTE (ch))
058a9ce57dd7 1999-09-04 Richard Stallman <rms@gnu.org>
Dave Love <fx@gnu.org>
parents: 1933
diff changeset
2415 || (is_multibyte && !ISUNIBYTE (ch)))
058a9ce57dd7 1999-09-04 Richard Stallman <rms@gnu.org>
Dave Love <fx@gnu.org>
parents: 1933
diff changeset
2416 SET_LIST_BIT (translated);
058a9ce57dd7 1999-09-04 Richard Stallman <rms@gnu.org>
Dave Love <fx@gnu.org>
parents: 1933
diff changeset
2417
1933
5ffa81ab1988 [emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents: 1660
diff changeset
2418 if ( (is_word && ISWORD (ch)))
5ffa81ab1988 [emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents: 1660
diff changeset
2419 SET_LIST_BIT (translated);
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2420 }
939
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
2421
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
2422 /* Repeat the loop. */
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
2423 continue;
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2424 }
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2425 else
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2426 {
2371
3274fb530385 (REGEX_FREE_STACK, RESET_FAIL_STACK): Make them usable as an expression.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2370
diff changeset
2427 /* Go back to right after the "[:". */
3274fb530385 (REGEX_FREE_STACK, RESET_FAIL_STACK): Make them usable as an expression.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2370
diff changeset
2428 p = class_beg;
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2429 SET_LIST_BIT ('[');
939
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
2430
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
2431 /* Because the `:' may starts the range, we
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
2432 can't simply set bit and repeat the loop.
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2433 Instead, just set it to C and handle below. */
939
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
2434 c = ':';
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2435 }
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2436 }
939
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
2437
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
2438 if (p < pend && p[0] == '-' && p[1] != ']')
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
2439 {
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
2440
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
2441 /* Discard the `-'. */
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
2442 PATFETCH (c1);
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
2443
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
2444 /* Fetch the character which ends the range. */
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
2445 PATFETCH (c1);
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
2446
2581
34ebbdf4dda0 (MAKE_CHAR) [!emacs]: Dummy macro for non-Emacs env.
Kenichi Handa <handa@m17n.org>
parents: 2551
diff changeset
2447 if (SINGLE_BYTE_CHAR_P (c))
1296
7b938cc81ae2 (compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents: 1218
diff changeset
2448 {
2581
34ebbdf4dda0 (MAKE_CHAR) [!emacs]: Dummy macro for non-Emacs env.
Kenichi Handa <handa@m17n.org>
parents: 2551
diff changeset
2449 if (! SINGLE_BYTE_CHAR_P (c1))
34ebbdf4dda0 (MAKE_CHAR) [!emacs]: Dummy macro for non-Emacs env.
Kenichi Handa <handa@m17n.org>
parents: 2551
diff changeset
2450 {
34ebbdf4dda0 (MAKE_CHAR) [!emacs]: Dummy macro for non-Emacs env.
Kenichi Handa <handa@m17n.org>
parents: 2551
diff changeset
2451 /* Handle a range such as \177-\377 in
34ebbdf4dda0 (MAKE_CHAR) [!emacs]: Dummy macro for non-Emacs env.
Kenichi Handa <handa@m17n.org>
parents: 2551
diff changeset
2452 multibyte mode. Split that into two
34ebbdf4dda0 (MAKE_CHAR) [!emacs]: Dummy macro for non-Emacs env.
Kenichi Handa <handa@m17n.org>
parents: 2551
diff changeset
2453 ranges, the low one ending at 0237, and
34ebbdf4dda0 (MAKE_CHAR) [!emacs]: Dummy macro for non-Emacs env.
Kenichi Handa <handa@m17n.org>
parents: 2551
diff changeset
2454 the high one starting at the smallest
34ebbdf4dda0 (MAKE_CHAR) [!emacs]: Dummy macro for non-Emacs env.
Kenichi Handa <handa@m17n.org>
parents: 2551
diff changeset
2455 character in the charset of C1 and
34ebbdf4dda0 (MAKE_CHAR) [!emacs]: Dummy macro for non-Emacs env.
Kenichi Handa <handa@m17n.org>
parents: 2551
diff changeset
2456 ending at C1. */
34ebbdf4dda0 (MAKE_CHAR) [!emacs]: Dummy macro for non-Emacs env.
Kenichi Handa <handa@m17n.org>
parents: 2551
diff changeset
2457 int charset = CHAR_CHARSET (c1);
34ebbdf4dda0 (MAKE_CHAR) [!emacs]: Dummy macro for non-Emacs env.
Kenichi Handa <handa@m17n.org>
parents: 2551
diff changeset
2458 int c2 = MAKE_CHAR (charset, 0, 0);
34ebbdf4dda0 (MAKE_CHAR) [!emacs]: Dummy macro for non-Emacs env.
Kenichi Handa <handa@m17n.org>
parents: 2551
diff changeset
2459
34ebbdf4dda0 (MAKE_CHAR) [!emacs]: Dummy macro for non-Emacs env.
Kenichi Handa <handa@m17n.org>
parents: 2551
diff changeset
2460 SET_RANGE_TABLE_WORK_AREA (range_table_work,
34ebbdf4dda0 (MAKE_CHAR) [!emacs]: Dummy macro for non-Emacs env.
Kenichi Handa <handa@m17n.org>
parents: 2551
diff changeset
2461 c2, c1);
34ebbdf4dda0 (MAKE_CHAR) [!emacs]: Dummy macro for non-Emacs env.
Kenichi Handa <handa@m17n.org>
parents: 2551
diff changeset
2462 c1 = 0237;
34ebbdf4dda0 (MAKE_CHAR) [!emacs]: Dummy macro for non-Emacs env.
Kenichi Handa <handa@m17n.org>
parents: 2551
diff changeset
2463 }
1296
7b938cc81ae2 (compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents: 1218
diff changeset
2464 }
7b938cc81ae2 (compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents: 1218
diff changeset
2465 else if (!SAME_CHARSET_P (c, c1))
939
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
2466 FREE_STACK_RETURN (REG_ERANGE);
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
2467 }
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2468 else
939
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
2469 /* Range from C to C. */
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
2470 c1 = c;
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
2471
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
2472 /* Set the range ... */
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
2473 if (SINGLE_BYTE_CHAR_P (c))
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
2474 /* ... into bitmap. */
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2475 {
939
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
2476 unsigned this_char;
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
2477 int range_start = c, range_end = c1;
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
2478
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
2479 /* If the start is after the end, the range is empty. */
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
2480 if (range_start > range_end)
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
2481 {
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
2482 if (syntax & RE_NO_EMPTY_RANGES)
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
2483 FREE_STACK_RETURN (REG_ERANGE);
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
2484 /* Else, repeat the loop. */
679
b088267ea1c8 Clean up whitespace.
Richard Stallman <rms@gnu.org>
parents: 678
diff changeset
2485 }
b088267ea1c8 Clean up whitespace.
Richard Stallman <rms@gnu.org>
parents: 678
diff changeset
2486 else
b088267ea1c8 Clean up whitespace.
Richard Stallman <rms@gnu.org>
parents: 678
diff changeset
2487 {
939
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
2488 for (this_char = range_start; this_char <= range_end;
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
2489 this_char++)
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
2490 SET_LIST_BIT (TRANSLATE (this_char));
1296
7b938cc81ae2 (compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents: 1218
diff changeset
2491 }
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2492 }
679
b088267ea1c8 Clean up whitespace.
Richard Stallman <rms@gnu.org>
parents: 678
diff changeset
2493 else
939
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
2494 /* ... into range table. */
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
2495 SET_RANGE_TABLE_WORK_AREA (range_table_work, c, c1);
679
b088267ea1c8 Clean up whitespace.
Richard Stallman <rms@gnu.org>
parents: 678
diff changeset
2496 }
b088267ea1c8 Clean up whitespace.
Richard Stallman <rms@gnu.org>
parents: 678
diff changeset
2497
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2498 /* Discard any (non)matching list bytes that are all 0 at the
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2499 end of the map. Decrease the map-length byte too. */
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2500 while ((int) b[-1] > 0 && b[b[-1] - 1] == 0)
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2501 b[-1]--;
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2502 b += b[-1];
939
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
2503
1933
5ffa81ab1988 [emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents: 1660
diff changeset
2504 /* Build real range table from work area. */
5ffa81ab1988 [emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents: 1660
diff changeset
2505 if (RANGE_TABLE_WORK_USED (range_table_work)
5ffa81ab1988 [emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents: 1660
diff changeset
2506 || RANGE_TABLE_WORK_BITS (range_table_work))
939
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
2507 {
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
2508 int i;
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
2509 int used = RANGE_TABLE_WORK_USED (range_table_work);
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
2510
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
2511 /* Allocate space for COUNT + RANGE_TABLE. Needs two
1933
5ffa81ab1988 [emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents: 1660
diff changeset
2512 bytes for flags, two for COUNT, and three bytes for
5ffa81ab1988 [emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents: 1660
diff changeset
2513 each character. */
5ffa81ab1988 [emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents: 1660
diff changeset
2514 GET_BUFFER_SPACE (4 + used * 3);
939
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
2515
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
2516 /* Indicate the existence of range table. */
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
2517 laststart[1] |= 0x80;
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
2518
1933
5ffa81ab1988 [emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents: 1660
diff changeset
2519 /* Store the character class flag bits into the range table.
5ffa81ab1988 [emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents: 1660
diff changeset
2520 If not in emacs, these flag bits are always 0. */
5ffa81ab1988 [emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents: 1660
diff changeset
2521 *b++ = RANGE_TABLE_WORK_BITS (range_table_work) & 0xff;
5ffa81ab1988 [emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents: 1660
diff changeset
2522 *b++ = RANGE_TABLE_WORK_BITS (range_table_work) >> 8;
5ffa81ab1988 [emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents: 1660
diff changeset
2523
939
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
2524 STORE_NUMBER_AND_INCR (b, used / 2);
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
2525 for (i = 0; i < used; i++)
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
2526 STORE_CHARACTER_AND_INCR
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
2527 (b, RANGE_TABLE_WORK_ELT (range_table_work, i));
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
2528 }
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2529 }
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2530 break;
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
2531
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 case '(':
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2534 if (syntax & RE_NO_BK_PARENS)
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2535 goto handle_open;
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2536 else
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2537 goto normal_char;
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2538
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2539
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2540 case ')':
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2541 if (syntax & RE_NO_BK_PARENS)
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2542 goto handle_close;
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2543 else
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2544 goto normal_char;
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2545
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2546
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2547 case '\n':
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2548 if (syntax & RE_NEWLINE_ALT)
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2549 goto handle_alt;
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2550 else
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2551 goto normal_char;
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
2552
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 case '|':
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2555 if (syntax & RE_NO_BK_VBAR)
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2556 goto handle_alt;
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2557 else
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2558 goto normal_char;
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2559
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2560
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2561 case '{':
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2562 if (syntax & RE_INTERVALS && syntax & RE_NO_BK_BRACES)
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2563 goto handle_interval;
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2564 else
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2565 goto normal_char;
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2566
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2567
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2568 case '\\':
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2569 if (p == pend) FREE_STACK_RETURN (REG_EESCAPE);
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2570
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2571 /* Do not translate the character after the \, so that we can
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2572 distinguish, e.g., \B from \b, even if we normally would
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2573 translate, e.g., B to b. */
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2574 PATFETCH_RAW (c);
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2575
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2576 switch (c)
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2577 {
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2578 case '(':
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2579 if (syntax & RE_NO_BK_PARENS)
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2580 goto normal_backslash;
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2581
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2582 handle_open:
2345
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
2583 {
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
2584 int shy = 0;
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
2585 if (p+1 < pend)
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
2586 {
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
2587 /* Look for a special (?...) construct */
2371
3274fb530385 (REGEX_FREE_STACK, RESET_FAIL_STACK): Make them usable as an expression.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2370
diff changeset
2588 if ((syntax & RE_SHY_GROUPS) && *p == '?')
2345
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
2589 {
2371
3274fb530385 (REGEX_FREE_STACK, RESET_FAIL_STACK): Make them usable as an expression.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2370
diff changeset
2590 PATFETCH (c); /* Gobble up the '?'. */
2345
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
2591 PATFETCH (c);
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
2592 switch (c)
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
2593 {
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
2594 case ':': shy = 1; break;
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
2595 default:
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
2596 /* Only (?:...) is supported right now. */
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
2597 FREE_STACK_RETURN (REG_BADPAT);
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
2598 }
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
2599 }
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
2600 }
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
2601
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
2602 if (!shy)
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
2603 {
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
2604 bufp->re_nsub++;
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
2605 regnum++;
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
2606 }
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2607
2350
f3edfed6aa96 (re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2349
diff changeset
2608 if (COMPILE_STACK_FULL)
f3edfed6aa96 (re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2349
diff changeset
2609 {
f3edfed6aa96 (re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2349
diff changeset
2610 RETALLOC (compile_stack.stack, compile_stack.size << 1,
f3edfed6aa96 (re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2349
diff changeset
2611 compile_stack_elt_t);
f3edfed6aa96 (re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2349
diff changeset
2612 if (compile_stack.stack == NULL) return REG_ESPACE;
f3edfed6aa96 (re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2349
diff changeset
2613
f3edfed6aa96 (re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2349
diff changeset
2614 compile_stack.size <<= 1;
f3edfed6aa96 (re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2349
diff changeset
2615 }
f3edfed6aa96 (re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2349
diff changeset
2616
f3edfed6aa96 (re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2349
diff changeset
2617 /* These are the values to restore when we hit end of this
f3edfed6aa96 (re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2349
diff changeset
2618 group. They are all relative offsets, so that if the
f3edfed6aa96 (re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2349
diff changeset
2619 whole pattern moves because of realloc, they will still
f3edfed6aa96 (re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2349
diff changeset
2620 be valid. */
f3edfed6aa96 (re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2349
diff changeset
2621 COMPILE_STACK_TOP.begalt_offset = begalt - bufp->buffer;
f3edfed6aa96 (re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2349
diff changeset
2622 COMPILE_STACK_TOP.fixup_alt_jump
f3edfed6aa96 (re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2349
diff changeset
2623 = fixup_alt_jump ? fixup_alt_jump - bufp->buffer + 1 : 0;
f3edfed6aa96 (re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2349
diff changeset
2624 COMPILE_STACK_TOP.laststart_offset = b - bufp->buffer;
f3edfed6aa96 (re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2349
diff changeset
2625 COMPILE_STACK_TOP.regnum = shy ? -regnum : regnum;
f3edfed6aa96 (re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2349
diff changeset
2626
f3edfed6aa96 (re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2349
diff changeset
2627 /* Do not push a
f3edfed6aa96 (re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2349
diff changeset
2628 start_memory for groups beyond the last one we can
f3edfed6aa96 (re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2349
diff changeset
2629 represent in the compiled pattern. */
f3edfed6aa96 (re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2349
diff changeset
2630 if (regnum <= MAX_REGNUM && !shy)
f3edfed6aa96 (re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2349
diff changeset
2631 BUF_PUSH_2 (start_memory, regnum);
f3edfed6aa96 (re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2349
diff changeset
2632
f3edfed6aa96 (re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2349
diff changeset
2633 compile_stack.avail++;
f3edfed6aa96 (re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2349
diff changeset
2634
f3edfed6aa96 (re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2349
diff changeset
2635 fixup_alt_jump = 0;
f3edfed6aa96 (re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2349
diff changeset
2636 laststart = 0;
f3edfed6aa96 (re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2349
diff changeset
2637 begalt = b;
f3edfed6aa96 (re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2349
diff changeset
2638 /* If we've reached MAX_REGNUM groups, then this open
f3edfed6aa96 (re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2349
diff changeset
2639 won't actually generate any code, so we'll have to
f3edfed6aa96 (re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2349
diff changeset
2640 clear pending_exact explicitly. */
f3edfed6aa96 (re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2349
diff changeset
2641 pending_exact = 0;
f3edfed6aa96 (re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2349
diff changeset
2642 break;
2345
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
2643 }
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2644
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2645 case ')':
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2646 if (syntax & RE_NO_BK_PARENS) goto normal_backslash;
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2647
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2648 if (COMPILE_STACK_EMPTY)
2345
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
2649 {
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
2650 if (syntax & RE_UNMATCHED_RIGHT_PAREN_ORD)
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
2651 goto normal_backslash;
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
2652 else
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
2653 FREE_STACK_RETURN (REG_ERPAREN);
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
2654 }
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2655
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2656 handle_close:
2345
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
2657 FIXUP_ALT_JUMP ();
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2658
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2659 /* See similar code for backslashed left paren above. */
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2660 if (COMPILE_STACK_EMPTY)
2345
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
2661 {
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
2662 if (syntax & RE_UNMATCHED_RIGHT_PAREN_ORD)
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
2663 goto normal_char;
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
2664 else
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
2665 FREE_STACK_RETURN (REG_ERPAREN);
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
2666 }
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2667
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2668 /* Since we just checked for an empty stack above, this
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2669 ``can't happen''. */
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2670 assert (compile_stack.avail != 0);
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2671 {
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2672 /* We don't just want to restore into `regnum', because
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2673 later groups should continue to be numbered higher,
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2674 as in `(ab)c(de)' -- the second group is #2. */
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2675 regnum_t this_group_regnum;
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2676
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2677 compile_stack.avail--;
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2678 begalt = bufp->buffer + COMPILE_STACK_TOP.begalt_offset;
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2679 fixup_alt_jump
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2680 = COMPILE_STACK_TOP.fixup_alt_jump
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2681 ? bufp->buffer + COMPILE_STACK_TOP.fixup_alt_jump - 1
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2682 : 0;
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2683 laststart = bufp->buffer + COMPILE_STACK_TOP.laststart_offset;
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2684 this_group_regnum = COMPILE_STACK_TOP.regnum;
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
2685 /* 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
2686 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
2687 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
2688 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
2689
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2690 /* We're at the end of the group, so now we know how many
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2691 groups were inside this one. */
2345
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
2692 if (this_group_regnum <= MAX_REGNUM && this_group_regnum > 0)
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
2693 BUF_PUSH_2 (stop_memory, this_group_regnum);
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2694 }
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2695 break;
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2696
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2697
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2698 case '|': /* `\|'. */
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2699 if (syntax & RE_LIMITED_OPS || syntax & RE_NO_BK_VBAR)
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2700 goto normal_backslash;
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2701 handle_alt:
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2702 if (syntax & RE_LIMITED_OPS)
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2703 goto normal_char;
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2704
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2705 /* Insert before the previous alternative a jump which
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2706 jumps to this alternative if the former fails. */
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2707 GET_BUFFER_SPACE (3);
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2708 INSERT_JUMP (on_failure_jump, begalt, b + 6);
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2709 pending_exact = 0;
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2710 b += 3;
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2711
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2712 /* The alternative before this one has a jump after it
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2713 which gets executed if it gets matched. Adjust that
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2714 jump so it will jump to this alternative's analogous
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2715 jump (put in below, which in turn will jump to the next
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2716 (if any) alternative's such jump, etc.). The last such
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2717 jump jumps to the correct final destination. A picture:
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2718 _____ _____
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2719 | | | |
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2720 | v | v
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2721 a | b | c
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2722
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2723 If we are at `b', then fixup_alt_jump right now points to a
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2724 three-byte space after `a'. We'll put in the jump, set
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2725 fixup_alt_jump to right after `b', and leave behind three
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2726 bytes which we'll fill in when we get to after `c'. */
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2727
2345
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
2728 FIXUP_ALT_JUMP ();
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2729
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2730 /* Mark and leave space for a jump after this alternative,
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2731 to be filled in later either by next alternative or
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2732 when know we're at the end of a series of alternatives. */
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2733 fixup_alt_jump = b;
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2734 GET_BUFFER_SPACE (3);
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2735 b += 3;
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2736
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2737 laststart = 0;
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2738 begalt = b;
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2739 break;
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2740
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2741
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2742 case '{':
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2743 /* If \{ is a literal. */
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2744 if (!(syntax & RE_INTERVALS)
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2745 /* If we're at `\{' and it's not the open-interval
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2746 operator. */
2371
3274fb530385 (REGEX_FREE_STACK, RESET_FAIL_STACK): Make them usable as an expression.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2370
diff changeset
2747 || (syntax & RE_NO_BK_BRACES)
3274fb530385 (REGEX_FREE_STACK, RESET_FAIL_STACK): Make them usable as an expression.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2370
diff changeset
2748 /* What is that? -sm */
3274fb530385 (REGEX_FREE_STACK, RESET_FAIL_STACK): Make them usable as an expression.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2370
diff changeset
2749 /* || (p - 2 == pattern && p == pend) */)
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2750 goto normal_backslash;
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2751
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2752 handle_interval:
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2753 {
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2754 /* If got here, then the syntax allows intervals. */
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2755
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2756 /* At least (most) this many matches must be made. */
2350
f3edfed6aa96 (re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2349
diff changeset
2757 int lower_bound = 0, upper_bound = -1;
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2758
2371
3274fb530385 (REGEX_FREE_STACK, RESET_FAIL_STACK): Make them usable as an expression.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2370
diff changeset
2759 beg_interval = p;
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2760
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2761 if (p == pend)
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2762 {
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2763 if (syntax & RE_NO_BK_BRACES)
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2764 goto unfetch_interval;
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2765 else
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2766 FREE_STACK_RETURN (REG_EBRACE);
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2767 }
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2768
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2769 GET_UNSIGNED_NUMBER (lower_bound);
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2770
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2771 if (c == ',')
2371
3274fb530385 (REGEX_FREE_STACK, RESET_FAIL_STACK): Make them usable as an expression.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2370
diff changeset
2772 GET_UNSIGNED_NUMBER (upper_bound);
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2773 else
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2774 /* Interval such as `{1}' => match exactly once. */
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2775 upper_bound = lower_bound;
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2776
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2777 if (lower_bound < 0 || upper_bound > RE_DUP_MAX
2371
3274fb530385 (REGEX_FREE_STACK, RESET_FAIL_STACK): Make them usable as an expression.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2370
diff changeset
2778 || (upper_bound >= 0 && lower_bound > upper_bound))
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2779 {
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2780 if (syntax & RE_NO_BK_BRACES)
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2781 goto unfetch_interval;
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2782 else
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2783 FREE_STACK_RETURN (REG_BADBR);
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2784 }
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2785
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2786 if (!(syntax & RE_NO_BK_BRACES))
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2787 {
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2788 if (c != '\\') FREE_STACK_RETURN (REG_EBRACE);
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2789
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2790 PATFETCH (c);
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2791 }
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2792
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2793 if (c != '}')
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2794 {
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2795 if (syntax & RE_NO_BK_BRACES)
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2796 goto unfetch_interval;
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2797 else
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2798 FREE_STACK_RETURN (REG_BADBR);
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2799 }
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2800
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2801 /* We just parsed a valid interval. */
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2802
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2803 /* If it's invalid to have no preceding re. */
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2804 if (!laststart)
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2805 {
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2806 if (syntax & RE_CONTEXT_INVALID_OPS)
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2807 FREE_STACK_RETURN (REG_BADRPT);
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2808 else if (syntax & RE_CONTEXT_INDEP_OPS)
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2809 laststart = b;
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2810 else
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2811 goto unfetch_interval;
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2812 }
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2813
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2814 if (upper_bound == 0)
2371
3274fb530385 (REGEX_FREE_STACK, RESET_FAIL_STACK): Make them usable as an expression.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2370
diff changeset
2815 /* If the upper bound is zero, just drop the sub pattern
3274fb530385 (REGEX_FREE_STACK, RESET_FAIL_STACK): Make them usable as an expression.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2370
diff changeset
2816 altogether. */
3274fb530385 (REGEX_FREE_STACK, RESET_FAIL_STACK): Make them usable as an expression.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2370
diff changeset
2817 b = laststart;
3274fb530385 (REGEX_FREE_STACK, RESET_FAIL_STACK): Make them usable as an expression.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2370
diff changeset
2818 else if (lower_bound == 1 && upper_bound == 1)
3274fb530385 (REGEX_FREE_STACK, RESET_FAIL_STACK): Make them usable as an expression.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2370
diff changeset
2819 /* Just match it once: nothing to do here. */
3274fb530385 (REGEX_FREE_STACK, RESET_FAIL_STACK): Make them usable as an expression.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2370
diff changeset
2820 ;
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2821
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2822 /* Otherwise, we have a nontrivial interval. When
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2823 we're all done, the pattern will look like:
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2824 set_number_at <jump count> <upper bound>
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2825 set_number_at <succeed_n count> <lower bound>
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2826 succeed_n <after jump addr> <succeed_n count>
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2827 <body of loop>
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2828 jump_n <succeed_n addr> <jump count>
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2829 (The upper bound and `jump_n' are omitted if
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2830 `upper_bound' is 1, though.) */
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2831 else
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2832 { /* If the upper bound is > 1, we need to insert
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2833 more at the end of the loop. */
2371
3274fb530385 (REGEX_FREE_STACK, RESET_FAIL_STACK): Make them usable as an expression.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2370
diff changeset
2834 unsigned int nbytes = (upper_bound < 0 ? 3
3274fb530385 (REGEX_FREE_STACK, RESET_FAIL_STACK): Make them usable as an expression.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2370
diff changeset
2835 : upper_bound > 1 ? 5 : 0);
3274fb530385 (REGEX_FREE_STACK, RESET_FAIL_STACK): Make them usable as an expression.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2370
diff changeset
2836 unsigned int startoffset = 0;
3274fb530385 (REGEX_FREE_STACK, RESET_FAIL_STACK): Make them usable as an expression.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2370
diff changeset
2837
3274fb530385 (REGEX_FREE_STACK, RESET_FAIL_STACK): Make them usable as an expression.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2370
diff changeset
2838 GET_BUFFER_SPACE (20); /* We might use less. */
3274fb530385 (REGEX_FREE_STACK, RESET_FAIL_STACK): Make them usable as an expression.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2370
diff changeset
2839
3274fb530385 (REGEX_FREE_STACK, RESET_FAIL_STACK): Make them usable as an expression.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2370
diff changeset
2840 if (lower_bound == 0)
3274fb530385 (REGEX_FREE_STACK, RESET_FAIL_STACK): Make them usable as an expression.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2370
diff changeset
2841 {
3274fb530385 (REGEX_FREE_STACK, RESET_FAIL_STACK): Make them usable as an expression.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2370
diff changeset
2842 /* A succeed_n that starts with 0 is really a
3274fb530385 (REGEX_FREE_STACK, RESET_FAIL_STACK): Make them usable as an expression.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2370
diff changeset
2843 a simple on_failure_jump_loop. */
3274fb530385 (REGEX_FREE_STACK, RESET_FAIL_STACK): Make them usable as an expression.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2370
diff changeset
2844 INSERT_JUMP (on_failure_jump_loop, laststart,
3274fb530385 (REGEX_FREE_STACK, RESET_FAIL_STACK): Make them usable as an expression.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2370
diff changeset
2845 b + 3 + nbytes);
3274fb530385 (REGEX_FREE_STACK, RESET_FAIL_STACK): Make them usable as an expression.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2370
diff changeset
2846 b += 3;
3274fb530385 (REGEX_FREE_STACK, RESET_FAIL_STACK): Make them usable as an expression.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2370
diff changeset
2847 }
3274fb530385 (REGEX_FREE_STACK, RESET_FAIL_STACK): Make them usable as an expression.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2370
diff changeset
2848 else
3274fb530385 (REGEX_FREE_STACK, RESET_FAIL_STACK): Make them usable as an expression.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2370
diff changeset
2849 {
3274fb530385 (REGEX_FREE_STACK, RESET_FAIL_STACK): Make them usable as an expression.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2370
diff changeset
2850 /* Initialize lower bound of the `succeed_n', even
3274fb530385 (REGEX_FREE_STACK, RESET_FAIL_STACK): Make them usable as an expression.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2370
diff changeset
2851 though it will be set during matching by its
3274fb530385 (REGEX_FREE_STACK, RESET_FAIL_STACK): Make them usable as an expression.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2370
diff changeset
2852 attendant `set_number_at' (inserted next),
3274fb530385 (REGEX_FREE_STACK, RESET_FAIL_STACK): Make them usable as an expression.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2370
diff changeset
2853 because `re_compile_fastmap' needs to know.
3274fb530385 (REGEX_FREE_STACK, RESET_FAIL_STACK): Make them usable as an expression.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2370
diff changeset
2854 Jump to the `jump_n' we might insert below. */
3274fb530385 (REGEX_FREE_STACK, RESET_FAIL_STACK): Make them usable as an expression.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2370
diff changeset
2855 INSERT_JUMP2 (succeed_n, laststart,
3274fb530385 (REGEX_FREE_STACK, RESET_FAIL_STACK): Make them usable as an expression.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2370
diff changeset
2856 b + 5 + nbytes,
3274fb530385 (REGEX_FREE_STACK, RESET_FAIL_STACK): Make them usable as an expression.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2370
diff changeset
2857 lower_bound);
3274fb530385 (REGEX_FREE_STACK, RESET_FAIL_STACK): Make them usable as an expression.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2370
diff changeset
2858 b += 5;
3274fb530385 (REGEX_FREE_STACK, RESET_FAIL_STACK): Make them usable as an expression.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2370
diff changeset
2859
3274fb530385 (REGEX_FREE_STACK, RESET_FAIL_STACK): Make them usable as an expression.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2370
diff changeset
2860 /* Code to initialize the lower bound. Insert
3274fb530385 (REGEX_FREE_STACK, RESET_FAIL_STACK): Make them usable as an expression.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2370
diff changeset
2861 before the `succeed_n'. The `5' is the last two
3274fb530385 (REGEX_FREE_STACK, RESET_FAIL_STACK): Make them usable as an expression.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2370
diff changeset
2862 bytes of this `set_number_at', plus 3 bytes of
3274fb530385 (REGEX_FREE_STACK, RESET_FAIL_STACK): Make them usable as an expression.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2370
diff changeset
2863 the following `succeed_n'. */
3274fb530385 (REGEX_FREE_STACK, RESET_FAIL_STACK): Make them usable as an expression.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2370
diff changeset
2864 insert_op2 (set_number_at, laststart, 5, lower_bound, b);
3274fb530385 (REGEX_FREE_STACK, RESET_FAIL_STACK): Make them usable as an expression.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2370
diff changeset
2865 b += 5;
3274fb530385 (REGEX_FREE_STACK, RESET_FAIL_STACK): Make them usable as an expression.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2370
diff changeset
2866 startoffset += 5;
3274fb530385 (REGEX_FREE_STACK, RESET_FAIL_STACK): Make them usable as an expression.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2370
diff changeset
2867 }
3274fb530385 (REGEX_FREE_STACK, RESET_FAIL_STACK): Make them usable as an expression.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2370
diff changeset
2868
3274fb530385 (REGEX_FREE_STACK, RESET_FAIL_STACK): Make them usable as an expression.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2370
diff changeset
2869 if (upper_bound < 0)
3274fb530385 (REGEX_FREE_STACK, RESET_FAIL_STACK): Make them usable as an expression.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2370
diff changeset
2870 {
3274fb530385 (REGEX_FREE_STACK, RESET_FAIL_STACK): Make them usable as an expression.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2370
diff changeset
2871 /* A negative upper bound stands for infinity,
3274fb530385 (REGEX_FREE_STACK, RESET_FAIL_STACK): Make them usable as an expression.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2370
diff changeset
2872 in which case it degenerates to a plain jump. */
3274fb530385 (REGEX_FREE_STACK, RESET_FAIL_STACK): Make them usable as an expression.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2370
diff changeset
2873 STORE_JUMP (jump, b, laststart + startoffset);
3274fb530385 (REGEX_FREE_STACK, RESET_FAIL_STACK): Make them usable as an expression.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2370
diff changeset
2874 b += 3;
3274fb530385 (REGEX_FREE_STACK, RESET_FAIL_STACK): Make them usable as an expression.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2370
diff changeset
2875 }
3274fb530385 (REGEX_FREE_STACK, RESET_FAIL_STACK): Make them usable as an expression.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2370
diff changeset
2876 else if (upper_bound > 1)
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2877 { /* More than one repetition is allowed, so
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2878 append a backward jump to the `succeed_n'
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2879 that starts this interval.
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2880
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2881 When we've reached this during matching,
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2882 we'll have matched the interval once, so
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2883 jump back only `upper_bound - 1' times. */
2371
3274fb530385 (REGEX_FREE_STACK, RESET_FAIL_STACK): Make them usable as an expression.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2370
diff changeset
2884 STORE_JUMP2 (jump_n, b, laststart + startoffset,
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2885 upper_bound - 1);
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2886 b += 5;
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2887
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2888 /* The location we want to set is the second
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2889 parameter of the `jump_n'; that is `b-2' as
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2890 an absolute address. `laststart' will be
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2891 the `set_number_at' we're about to insert;
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2892 `laststart+3' the number to set, the source
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2893 for the relative address. But we are
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2894 inserting into the middle of the pattern --
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2895 so everything is getting moved up by 5.
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2896 Conclusion: (b - 2) - (laststart + 3) + 5,
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2897 i.e., b - laststart.
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2898
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2899 We insert this at the beginning of the loop
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2900 so that if we fail during matching, we'll
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2901 reinitialize the bounds. */
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2902 insert_op2 (set_number_at, laststart, b - laststart,
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2903 upper_bound - 1, b);
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2904 b += 5;
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2905 }
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2906 }
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2907 pending_exact = 0;
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2908 beg_interval = NULL;
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2909 }
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2910 break;
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2911
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2912 unfetch_interval:
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2913 /* If an invalid interval, match the characters as literals. */
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2914 assert (beg_interval);
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2915 p = beg_interval;
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2916 beg_interval = NULL;
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2917
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2918 /* normal_char and normal_backslash need `c'. */
2371
3274fb530385 (REGEX_FREE_STACK, RESET_FAIL_STACK): Make them usable as an expression.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2370
diff changeset
2919 c = '{';
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2920
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2921 if (!(syntax & RE_NO_BK_BRACES))
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2922 {
2371
3274fb530385 (REGEX_FREE_STACK, RESET_FAIL_STACK): Make them usable as an expression.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2370
diff changeset
2923 assert (p > pattern && p[-1] == '\\');
3274fb530385 (REGEX_FREE_STACK, RESET_FAIL_STACK): Make them usable as an expression.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2370
diff changeset
2924 goto normal_backslash;
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2925 }
2371
3274fb530385 (REGEX_FREE_STACK, RESET_FAIL_STACK): Make them usable as an expression.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2370
diff changeset
2926 else
3274fb530385 (REGEX_FREE_STACK, RESET_FAIL_STACK): Make them usable as an expression.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2370
diff changeset
2927 goto normal_char;
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
2928
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 #ifdef emacs
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2930 /* There is no way to specify the before_dot and after_dot
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2931 operators. rms says this is ok. --karl */
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2932 case '=':
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2933 BUF_PUSH (at_dot);
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2934 break;
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2935
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2936 case 's':
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2937 laststart = b;
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2938 PATFETCH (c);
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2939 BUF_PUSH_2 (syntaxspec, syntax_spec_code[c]);
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2940 break;
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2942 case 'S':
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2943 laststart = b;
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2944 PATFETCH (c);
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2945 BUF_PUSH_2 (notsyntaxspec, syntax_spec_code[c]);
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2946 break;
939
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
2947
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
2948 case 'c':
679
b088267ea1c8 Clean up whitespace.
Richard Stallman <rms@gnu.org>
parents: 678
diff changeset
2949 laststart = b;
939
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
2950 PATFETCH_RAW (c);
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
2951 BUF_PUSH_2 (categoryspec, c);
679
b088267ea1c8 Clean up whitespace.
Richard Stallman <rms@gnu.org>
parents: 678
diff changeset
2952 break;
b088267ea1c8 Clean up whitespace.
Richard Stallman <rms@gnu.org>
parents: 678
diff changeset
2953
939
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
2954 case 'C':
679
b088267ea1c8 Clean up whitespace.
Richard Stallman <rms@gnu.org>
parents: 678
diff changeset
2955 laststart = b;
939
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
2956 PATFETCH_RAW (c);
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
2957 BUF_PUSH_2 (notcategoryspec, c);
679
b088267ea1c8 Clean up whitespace.
Richard Stallman <rms@gnu.org>
parents: 678
diff changeset
2958 break;
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
2959 #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
2960
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
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2962 case 'w':
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2963 laststart = b;
2356
d93889e88226 (CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2355
diff changeset
2964 BUF_PUSH_2 (syntaxspec, Sword);
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2965 break;
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2966
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2967
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2968 case 'W':
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2969 laststart = b;
2356
d93889e88226 (CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2355
diff changeset
2970 BUF_PUSH_2 (notsyntaxspec, Sword);
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2971 break;
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2972
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2973
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2974 case '<':
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2975 BUF_PUSH (wordbeg);
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2976 break;
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2977
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2978 case '>':
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2979 BUF_PUSH (wordend);
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2980 break;
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2981
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2982 case 'b':
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2983 BUF_PUSH (wordbound);
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2984 break;
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2985
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2986 case 'B':
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2987 BUF_PUSH (notwordbound);
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2988 break;
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2989
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2990 case '`':
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2991 BUF_PUSH (begbuf);
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2992 break;
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2993
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2994 case '\'':
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2995 BUF_PUSH (endbuf);
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2996 break;
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2997
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2998 case '1': case '2': case '3': case '4': case '5':
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
2999 case '6': case '7': case '8': case '9':
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
3000 if (syntax & RE_NO_BK_REFS)
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
3001 goto normal_char;
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
3002
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
3003 c1 = c - '0';
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
3004
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
3005 if (c1 > regnum)
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
3006 FREE_STACK_RETURN (REG_ESUBREG);
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
3007
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
3008 /* Can't back reference to a subexpression if inside of it. */
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
3009 if (group_in_compile_stack (compile_stack, c1))
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
3010 goto normal_char;
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
3011
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
3012 laststart = b;
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
3013 BUF_PUSH_2 (duplicate, c1);
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
3014 break;
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
3015
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
3016
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
3017 case '+':
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
3018 case '?':
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
3019 if (syntax & RE_BK_PLUS_QM)
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
3020 goto handle_plus;
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
3021 else
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
3022 goto normal_backslash;
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
3023
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
3024 default:
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
3025 normal_backslash:
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
3026 /* You might think it would be useful for \ to mean
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
3027 not to translate; but if we don't translate it
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
3028 it will never match anything. */
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
3029 c = TRANSLATE (c);
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
3030 goto normal_char;
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
3031 }
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
3032 break;
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
3033
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
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 default:
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
3036 /* Expects the character in `c'. */
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
3037 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
3038 /* If no exactn currently being built. */
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
3039 if (!pending_exact
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
3040
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
3041 /* If last exactn not at current position. */
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
3042 || pending_exact + *pending_exact + 1 != b
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
3043
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
3044 /* We have only one byte following the exactn for the count. */
2375
f25b865f900c * regex.c (PTR_TO_OFFSET) [!emacs]: Remove.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2372
diff changeset
3045 || *pending_exact >= (1 << BYTEWIDTH) - MAX_MULTIBYTE_LENGTH
939
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
3046
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
3047 /* If followed by a repetition operator. */
1342
e5cbc689bc64 (regex_compile): When checking after exactn
Richard Stallman <rms@gnu.org>
parents: 1335
diff changeset
3048 || (p != pend && (*p == '*' || *p == '^'))
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
3049 || ((syntax & RE_BK_PLUS_QM)
1342
e5cbc689bc64 (regex_compile): When checking after exactn
Richard Stallman <rms@gnu.org>
parents: 1335
diff changeset
3050 ? p + 1 < pend && *p == '\\' && (p[1] == '+' || p[1] == '?')
e5cbc689bc64 (regex_compile): When checking after exactn
Richard Stallman <rms@gnu.org>
parents: 1335
diff changeset
3051 : p != pend && (*p == '+' || *p == '?'))
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
3052 || ((syntax & RE_INTERVALS)
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
3053 && ((syntax & RE_NO_BK_BRACES)
1342
e5cbc689bc64 (regex_compile): When checking after exactn
Richard Stallman <rms@gnu.org>
parents: 1335
diff changeset
3054 ? p != pend && *p == '{'
e5cbc689bc64 (regex_compile): When checking after exactn
Richard Stallman <rms@gnu.org>
parents: 1335
diff changeset
3055 : p + 1 < pend && p[0] == '\\' && p[1] == '{')))
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
3056 {
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 /* Start building a new exactn. */
515
69ba3b63e1d1 (gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents: 511
diff changeset
3058
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
3059 laststart = b;
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
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 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
3062 pending_exact = b - 1;
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
3063 }
939
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
3064
2375
f25b865f900c * regex.c (PTR_TO_OFFSET) [!emacs]: Remove.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2372
diff changeset
3065 GET_BUFFER_SPACE (MAX_MULTIBYTE_LENGTH);
f25b865f900c * regex.c (PTR_TO_OFFSET) [!emacs]: Remove.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2372
diff changeset
3066 {
f25b865f900c * regex.c (PTR_TO_OFFSET) [!emacs]: Remove.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2372
diff changeset
3067 int len = CHAR_STRING (c, b);
f25b865f900c * regex.c (PTR_TO_OFFSET) [!emacs]: Remove.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2372
diff changeset
3068 b += len;
f25b865f900c * regex.c (PTR_TO_OFFSET) [!emacs]: Remove.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2372
diff changeset
3069 (*pending_exact) += len;
f25b865f900c * regex.c (PTR_TO_OFFSET) [!emacs]: Remove.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2372
diff changeset
3070 }
f25b865f900c * regex.c (PTR_TO_OFFSET) [!emacs]: Remove.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2372
diff changeset
3071
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
3072 break;
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
3073 } /* switch (c) */
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
3074 } /* 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
3075
515
69ba3b63e1d1 (gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents: 511
diff changeset
3076
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
3077 /* Through the pattern now. */
515
69ba3b63e1d1 (gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents: 511
diff changeset
3078
2345
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
3079 FIXUP_ALT_JUMP ();
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
3080
515
69ba3b63e1d1 (gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents: 511
diff changeset
3081 if (!COMPILE_STACK_EMPTY)
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
3082 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
3083
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 /* 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
3085 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
3086 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
3087 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
3088
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 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
3090
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 /* 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
3092 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
3093
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 #ifdef DEBUG
2350
f3edfed6aa96 (re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2349
diff changeset
3095 if (debug > 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
3096 {
2345
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
3097 re_compile_fastmap (bufp);
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
3098 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
3099 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
3100 }
2350
f3edfed6aa96 (re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2349
diff changeset
3101 debug--;
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
3102 #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
3103
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 #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
3105 /* 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
3106 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
3107 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
3108 {
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 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
3110
1156
8e1cbb305ddc (TYPICAL_FAILURE_SIZE): Renamed from MAX_FAILURE_ITEMS.
Karl Heuer <kwzh@gnu.org>
parents: 992
diff changeset
3111 if (fail_stack.size < re_max_failures * TYPICAL_FAILURE_SIZE)
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
3112 {
1297
ac5117571763 (regex_compile) [!MATCH_MAY_ALLOCATE]: Fix paren error.
Richard Stallman <rms@gnu.org>
parents: 1296
diff changeset
3113 fail_stack.size = re_max_failures * TYPICAL_FAILURE_SIZE;
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
3114
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 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
3116 fail_stack.stack
515
69ba3b63e1d1 (gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents: 511
diff changeset
3117 = (fail_stack_elt_t *) malloc (fail_stack.size
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
3118 * 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
3119 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
3120 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
3121 = (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
3122 (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
3123 * 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
3124 }
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 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
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 #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
3129
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 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
3131 } /* 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
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 /* 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
3134
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
3135 /* Store OP at LOC followed by two-byte integer parameter ARG. */
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
3136
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 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
3138 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
3139 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
3140 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
3141 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
3142 {
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 *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
3144 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
3145 }
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
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
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 /* 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
3149
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 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
3151 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
3152 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
3153 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
3154 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
3155 {
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 *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
3157 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
3158 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
3159 }
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
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
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 /* 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
3163 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
3164
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 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
3166 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
3167 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
3168 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
3169 int arg;
515
69ba3b63e1d1 (gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents: 511
diff changeset
3170 unsigned char *end;
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
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 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
3173 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
3174
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 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
3176 *--pto = *--pfrom;
515
69ba3b63e1d1 (gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents: 511
diff changeset
3177
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
3178 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
3179 }
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
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
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 /* 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
3183
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 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
3185 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
3186 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
3187 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
3188 int arg1, arg2;
515
69ba3b63e1d1 (gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents: 511
diff changeset
3189 unsigned char *end;
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
3190 {
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 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
3192 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
3193
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 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
3195 *--pto = *--pfrom;
515
69ba3b63e1d1 (gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents: 511
diff changeset
3196
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
3197 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
3198 }
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
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 /* 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
3202 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
3203 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
3204
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 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
3206 at_begline_loc_p (pattern, p, syntax)
2350
f3edfed6aa96 (re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2349
diff changeset
3207 const unsigned char *pattern, *p;
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
3208 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
3209 {
2355
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
3210 const unsigned char *prev = p - 2;
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
3211 boolean prev_prev_backslash = prev > pattern && prev[-1] == '\\';
515
69ba3b63e1d1 (gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents: 511
diff changeset
3212
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
3213 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
3214 /* 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
3215 (*prev == '(' && (syntax & RE_NO_BK_PARENS || prev_prev_backslash))
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
3216 /* After an alternative? */
2537
c971620b680c (at_begline_loc_p): Also recognize the \\(?:^ case
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2438
diff changeset
3217 || (*prev == '|' && (syntax & RE_NO_BK_VBAR || prev_prev_backslash))
c971620b680c (at_begline_loc_p): Also recognize the \\(?:^ case
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2438
diff changeset
3218 /* After a shy subexpression? */
c971620b680c (at_begline_loc_p): Also recognize the \\(?:^ case
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2438
diff changeset
3219 || ((syntax & RE_SHY_GROUPS) && prev - 2 >= pattern
c971620b680c (at_begline_loc_p): Also recognize the \\(?:^ case
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2438
diff changeset
3220 && prev[-1] == '?' && prev[-2] == '('
c971620b680c (at_begline_loc_p): Also recognize the \\(?:^ case
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2438
diff changeset
3221 && (syntax & RE_NO_BK_PARENS
c971620b680c (at_begline_loc_p): Also recognize the \\(?:^ case
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2438
diff changeset
3222 || (prev - 3 >= pattern && prev[-3] == '\\')));
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
3223 }
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
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 /* 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
3227 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
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 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
3230 at_endline_loc_p (p, pend, syntax)
2350
f3edfed6aa96 (re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2349
diff changeset
3231 const unsigned char *p, *pend;
f3edfed6aa96 (re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2349
diff changeset
3232 reg_syntax_t syntax;
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
3233 {
2355
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
3234 const unsigned char *next = p;
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
3235 boolean next_backslash = *next == '\\';
2355
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
3236 const unsigned char *next_next = p + 1 < pend ? p + 1 : 0;
515
69ba3b63e1d1 (gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents: 511
diff changeset
3237
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
3238 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
3239 /* 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
3240 (syntax & RE_NO_BK_PARENS ? *next == ')'
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
3241 : next_backslash && next_next && *next_next == ')')
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
3242 /* 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
3243 || (syntax & RE_NO_BK_VBAR ? *next == '|'
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
3244 : next_backslash && next_next && *next_next == '|');
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
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
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
515
69ba3b63e1d1 (gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents: 511
diff changeset
3248 /* Returns true if REGNUM is in one of COMPILE_STACK's elements and
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
3249 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
3250
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 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
3252 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
3253 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
3254 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
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 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
3257
515
69ba3b63e1d1 (gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents: 511
diff changeset
3258 for (this_element = compile_stack.avail - 1;
69ba3b63e1d1 (gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents: 511
diff changeset
3259 this_element >= 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
3260 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
3261 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
3262 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
3263
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 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
3265 }
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
2372
c0c46914f4fe (analyse_first): New function obtained by ripping out most
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2371
diff changeset
3267 /* analyse_first.
c0c46914f4fe (analyse_first): New function obtained by ripping out most
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2371
diff changeset
3268 If fastmap is non-NULL, go through the pattern and fill fastmap
c0c46914f4fe (analyse_first): New function obtained by ripping out most
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2371
diff changeset
3269 with all the possible leading chars. If fastmap is NULL, don't
c0c46914f4fe (analyse_first): New function obtained by ripping out most
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2371
diff changeset
3270 bother filling it up (obviously) and only return whether the
c0c46914f4fe (analyse_first): New function obtained by ripping out most
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2371
diff changeset
3271 pattern could potentially match the empty string.
c0c46914f4fe (analyse_first): New function obtained by ripping out most
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2371
diff changeset
3272
c0c46914f4fe (analyse_first): New function obtained by ripping out most
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2371
diff changeset
3273 Return 1 if p..pend might match the empty string.
c0c46914f4fe (analyse_first): New function obtained by ripping out most
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2371
diff changeset
3274 Return 0 if p..pend matches at least one char.
c0c46914f4fe (analyse_first): New function obtained by ripping out most
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2371
diff changeset
3275 Return -1 if p..pend matches at least one char, but fastmap was not
c0c46914f4fe (analyse_first): New function obtained by ripping out most
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2371
diff changeset
3276 updated accurately.
c0c46914f4fe (analyse_first): New function obtained by ripping out most
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2371
diff changeset
3277 Return -2 if an error occurred. */
c0c46914f4fe (analyse_first): New function obtained by ripping out most
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2371
diff changeset
3278
c0c46914f4fe (analyse_first): New function obtained by ripping out most
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2371
diff changeset
3279 static int
c0c46914f4fe (analyse_first): New function obtained by ripping out most
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2371
diff changeset
3280 analyse_first (p, pend, fastmap, multibyte)
c0c46914f4fe (analyse_first): New function obtained by ripping out most
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2371
diff changeset
3281 unsigned char *p, *pend;
c0c46914f4fe (analyse_first): New function obtained by ripping out most
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2371
diff changeset
3282 char *fastmap;
c0c46914f4fe (analyse_first): New function obtained by ripping out most
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2371
diff changeset
3283 const int multibyte;
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
3284 {
2345
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
3285 int j, k;
2356
d93889e88226 (CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2355
diff changeset
3286 boolean not;
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
3287 #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
3288 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
3289 #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
3290 #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
3291 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
3292 #endif
515
69ba3b63e1d1 (gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents: 511
diff changeset
3293
2350
f3edfed6aa96 (re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2349
diff changeset
3294 #if defined (REL_ALLOC) && defined (REGEX_MALLOC)
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
3295 /* 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
3296 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
3297 fail_stack_elt_t *failure_stack_ptr;
2350
f3edfed6aa96 (re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2349
diff changeset
3298 #endif
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
3299
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 /* Assume that each path through the pattern can be null until
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
3301 proven otherwise. We set this false at the bottom of switch
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
3302 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
3303 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
3304 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
3305
939
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
3306 /* If all elements for base leading-codes in fastmap is set, this
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
3307 flag is set true. */
939
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
3308 boolean match_any_multibyte_characters = false;
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
3309
2372
c0c46914f4fe (analyse_first): New function obtained by ripping out most
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2371
diff changeset
3310 assert (p);
515
69ba3b63e1d1 (gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents: 511
diff changeset
3311
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
3312 INIT_FAIL_STACK ();
515
69ba3b63e1d1 (gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents: 511
diff changeset
3313
2345
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
3314 /* The loop below works as follows:
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
3315 - It has a working-list kept in the PATTERN_STACK and which basically
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
3316 starts by only containing a pointer to the first operation.
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
3317 - If the opcode we're looking at is a match against some set of
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
3318 chars, then we add those chars to the fastmap and go on to the
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
3319 next work element from the worklist (done via `break').
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
3320 - If the opcode is a control operator on the other hand, we either
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
3321 ignore it (if it's meaningless at this point, such as `start_memory')
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
3322 or execute it (if it's a jump). If the jump has several destinations
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
3323 (i.e. `on_failure_jump'), then we push the other destination onto the
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
3324 worklist.
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
3325 We guarantee termination by ignoring backward jumps (more or less),
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
3326 so that `p' is monotonically increasing. More to the point, we
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
3327 never set `p' (or push) anything `<= p1'. */
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
3328
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
3329 /* If can_be_null is set, then the fastmap will not be used anyway. */
2372
c0c46914f4fe (analyse_first): New function obtained by ripping out most
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2371
diff changeset
3330 while (1)
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
3331 {
2345
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
3332 /* `p1' is used as a marker of how far back a `on_failure_jump'
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
3333 can go without being ignored. It is normally equal to `p'
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
3334 (which prevents any backward `on_failure_jump') except right
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
3335 after a plain `jump', to allow patterns such as:
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
3336 0: jump 10
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
3337 3..9: <body>
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
3338 10: on_failure_jump 3
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
3339 as used for the *? operator. */
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
3340 unsigned char *p1 = p;
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
3341
2372
c0c46914f4fe (analyse_first): New function obtained by ripping out most
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2371
diff changeset
3342 if (p >= pend)
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
3343 {
2372
c0c46914f4fe (analyse_first): New function obtained by ripping out most
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2371
diff changeset
3344 if (path_can_be_null)
c0c46914f4fe (analyse_first): New function obtained by ripping out most
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2371
diff changeset
3345 return (RESET_FAIL_STACK (), 1);
c0c46914f4fe (analyse_first): New function obtained by ripping out most
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2371
diff changeset
3346
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
3347 /* We have reached the (effective) end of pattern. */
2372
c0c46914f4fe (analyse_first): New function obtained by ripping out most
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2371
diff changeset
3348 if (PATTERN_STACK_EMPTY ())
c0c46914f4fe (analyse_first): New function obtained by ripping out most
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2371
diff changeset
3349 return (RESET_FAIL_STACK (), 0);
c0c46914f4fe (analyse_first): New function obtained by ripping out most
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2371
diff changeset
3350
c0c46914f4fe (analyse_first): New function obtained by ripping out most
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2371
diff changeset
3351 p = (unsigned char*) POP_PATTERN_OP ();
c0c46914f4fe (analyse_first): New function obtained by ripping out most
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2371
diff changeset
3352 path_can_be_null = true;
c0c46914f4fe (analyse_first): New function obtained by ripping out most
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2371
diff changeset
3353 continue;
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
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
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
3356 /* We should never be about to go beyond the end of the pattern. */
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
3357 assert (p < pend);
515
69ba3b63e1d1 (gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents: 511
diff changeset
3358
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
3359 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
3360 {
2372
c0c46914f4fe (analyse_first): New function obtained by ripping out most
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2371
diff changeset
3361 case succeed:
c0c46914f4fe (analyse_first): New function obtained by ripping out most
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2371
diff changeset
3362 p = pend;
c0c46914f4fe (analyse_first): New function obtained by ripping out most
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2371
diff changeset
3363 continue;
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
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 case duplicate:
2345
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
3366 /* If the first character has to match a backreference, that means
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
3367 that the group was empty (since it already matched). Since this
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
3368 is the only case that interests us here, we can assume that the
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
3369 backreference must match the empty string. */
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
3370 p++;
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
3371 continue;
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
3372
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 /* Following are the cases which match a character. These end
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
3375 with `break'. */
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
3376
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 case exactn:
2372
c0c46914f4fe (analyse_first): New function obtained by ripping out most
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2371
diff changeset
3378 if (fastmap) fastmap[p[1]] = 1;
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
3379 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
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
2356
d93889e88226 (CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2355
diff changeset
3382 case anychar:
d93889e88226 (CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2355
diff changeset
3383 /* We could put all the chars except for \n (and maybe \0)
d93889e88226 (CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2355
diff changeset
3384 but we don't bother since it is generally not worth it. */
2372
c0c46914f4fe (analyse_first): New function obtained by ripping out most
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2371
diff changeset
3385 if (!fastmap) break;
c0c46914f4fe (analyse_first): New function obtained by ripping out most
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2371
diff changeset
3386 return (RESET_FAIL_STACK (), -1);
2356
d93889e88226 (CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2355
diff changeset
3387
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
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 case charset_not:
2356
d93889e88226 (CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2355
diff changeset
3390 /* Chars beyond end of bitmap are possible matches.
d93889e88226 (CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2355
diff changeset
3391 All the single-byte codes can occur in multibyte buffers.
d93889e88226 (CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2355
diff changeset
3392 So any that are not listed in the charset
d93889e88226 (CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2355
diff changeset
3393 are possible matches, even in multibyte buffers. */
d93889e88226 (CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2355
diff changeset
3394 if (!fastmap) break;
d93889e88226 (CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2355
diff changeset
3395 for (j = CHARSET_BITMAP_SIZE (&p[-1]) * BYTEWIDTH;
d93889e88226 (CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2355
diff changeset
3396 j < (1 << BYTEWIDTH); j++)
d93889e88226 (CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2355
diff changeset
3397 fastmap[j] = 1;
d93889e88226 (CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2355
diff changeset
3398 /* Fallthrough */
939
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
3399 case charset:
2356
d93889e88226 (CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2355
diff changeset
3400 if (!fastmap) break;
d93889e88226 (CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2355
diff changeset
3401 not = (re_opcode_t) *(p - 1) == charset_not;
939
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
3402 for (j = CHARSET_BITMAP_SIZE (&p[-1]) * BYTEWIDTH - 1, p++;
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
3403 j >= 0; j--)
2356
d93889e88226 (CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2355
diff changeset
3404 if (!!(p[j / BYTEWIDTH] & (1 << (j % BYTEWIDTH))) ^ not)
939
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
3405 fastmap[j] = 1;
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
3406
2356
d93889e88226 (CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2355
diff changeset
3407 if ((not && multibyte)
d93889e88226 (CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2355
diff changeset
3408 /* Any character set can possibly contain a character
d93889e88226 (CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2355
diff changeset
3409 which doesn't match the specified set of characters. */
d93889e88226 (CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2355
diff changeset
3410 || (CHARSET_RANGE_TABLE_EXISTS_P (&p[-2])
d93889e88226 (CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2355
diff changeset
3411 && CHARSET_RANGE_TABLE_BITS (&p[-2]) != 0))
d93889e88226 (CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2355
diff changeset
3412 /* If we can match a character class, we can match
d93889e88226 (CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2355
diff changeset
3413 any character set. */
d93889e88226 (CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2355
diff changeset
3414 {
d93889e88226 (CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2355
diff changeset
3415 set_fastmap_for_multibyte_characters:
d93889e88226 (CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2355
diff changeset
3416 if (match_any_multibyte_characters == false)
d93889e88226 (CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2355
diff changeset
3417 {
d93889e88226 (CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2355
diff changeset
3418 for (j = 0x80; j < 0xA0; j++) /* XXX */
d93889e88226 (CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2355
diff changeset
3419 if (BASE_LEADING_CODE_P (j))
d93889e88226 (CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2355
diff changeset
3420 fastmap[j] = 1;
d93889e88226 (CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2355
diff changeset
3421 match_any_multibyte_characters = true;
d93889e88226 (CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2355
diff changeset
3422 }
d93889e88226 (CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2355
diff changeset
3423 }
d93889e88226 (CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2355
diff changeset
3424
d93889e88226 (CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2355
diff changeset
3425 else if (!not && CHARSET_RANGE_TABLE_EXISTS_P (&p[-2])
d93889e88226 (CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2355
diff changeset
3426 && match_any_multibyte_characters == false)
939
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
3427 {
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
3428 /* Set fastmap[I] 1 where I is a base leading code of each
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
3429 multibyte character in the range table. */
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
3430 int c, count;
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
3431
2356
d93889e88226 (CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2355
diff changeset
3432 /* Make P points the range table. `+ 2' is to skip flag
d93889e88226 (CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2355
diff changeset
3433 bits for a character class. */
d93889e88226 (CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2355
diff changeset
3434 p += CHARSET_BITMAP_SIZE (&p[-2]) + 2;
939
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
3435
1965
058a9ce57dd7 1999-09-04 Richard Stallman <rms@gnu.org>
Dave Love <fx@gnu.org>
parents: 1933
diff changeset
3436 /* Extract the number of ranges in range table into COUNT. */
939
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
3437 EXTRACT_NUMBER_AND_INCR (count, p);
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
3438 for (; count > 0; count--, p += 2 * 3) /* XXX */
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
3439 {
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
3440 /* Extract the start of each range. */
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
3441 EXTRACT_CHARACTER (c, p);
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
3442 j = CHAR_CHARSET (c);
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
3443 fastmap[CHARSET_LEADING_CODE_BASE (j)] = 1;
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
3444 }
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
3445 }
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
3446 break;
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
3447
2356
d93889e88226 (CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2355
diff changeset
3448 case syntaxspec:
d93889e88226 (CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2355
diff changeset
3449 case notsyntaxspec:
d93889e88226 (CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2355
diff changeset
3450 if (!fastmap) break;
d93889e88226 (CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2355
diff changeset
3451 #ifndef emacs
d93889e88226 (CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2355
diff changeset
3452 not = (re_opcode_t)p[-1] == notsyntaxspec;
d93889e88226 (CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2355
diff changeset
3453 k = *p++;
d93889e88226 (CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2355
diff changeset
3454 for (j = 0; j < (1 << BYTEWIDTH); j++)
2359
dbf725277cfc (enum syntaxcode): Provide default for non-Emacs.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2357
diff changeset
3455 if ((SYNTAX (j) == (enum syntaxcode) k) ^ not)
939
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
3456 fastmap[j] = 1;
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
3457 break;
2356
d93889e88226 (CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2355
diff changeset
3458 #else /* emacs */
939
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
3459 /* This match depends on text properties. These end with
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
3460 aborting optimizations. */
2372
c0c46914f4fe (analyse_first): New function obtained by ripping out most
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2371
diff changeset
3461 return (RESET_FAIL_STACK (), -1);
939
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
3462
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
3463 case categoryspec:
2356
d93889e88226 (CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2355
diff changeset
3464 case notcategoryspec:
d93889e88226 (CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2355
diff changeset
3465 if (!fastmap) break;
d93889e88226 (CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2355
diff changeset
3466 not = (re_opcode_t)p[-1] == notcategoryspec;
939
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
3467 k = *p++;
2356
d93889e88226 (CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2355
diff changeset
3468 for (j = 0; j < (1 << BYTEWIDTH); j++)
d93889e88226 (CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2355
diff changeset
3469 if ((CHAR_HAS_CATEGORY (j, k)) ^ not)
939
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
3470 fastmap[j] = 1;
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
3471
2356
d93889e88226 (CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2355
diff changeset
3472 if (multibyte)
939
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
3473 /* Any character set can possibly contain a character
2356
d93889e88226 (CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2355
diff changeset
3474 whose category is K (or not). */
939
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
3475 goto set_fastmap_for_multibyte_characters;
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
3476 break;
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
3477
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 /* All cases after this match the empty string. These end with
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
3479 `continue'. */
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
3480
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 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
3482 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
3483 case after_dot:
2356
d93889e88226 (CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2355
diff changeset
3484 #endif /* !emacs */
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
3485 case no_op:
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
3486 case begline:
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
3487 case endline:
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
3488 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
3489 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
3490 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
3491 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
3492 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
3493 case wordend:
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
3494 continue;
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
3495
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
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 case jump:
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
3498 EXTRACT_NUMBER_AND_INCR (j, p);
2345
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
3499 if (j < 0)
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
3500 /* Backward jumps can only go back to code that we've already
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
3501 visited. `re_compile' should make sure this is true. */
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
3502 break;
515
69ba3b63e1d1 (gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents: 511
diff changeset
3503 p += j;
2345
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
3504 switch (SWITCH_ENUM_CAST ((re_opcode_t) *p))
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
3505 {
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
3506 case on_failure_jump:
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
3507 case on_failure_keep_string_jump:
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
3508 case on_failure_jump_loop:
2370
d8ded9c0e20c (enum re_opcode_t): New opcode on_failure_jump_nastyloop.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2359
diff changeset
3509 case on_failure_jump_nastyloop:
2345
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
3510 case on_failure_jump_smart:
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
3511 p++;
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
3512 break;
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
3513 default:
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
3514 continue;
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
3515 };
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
3516 /* Keep `p1' to allow the `on_failure_jump' we are jumping to
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
3517 to jump back to "just after here". */
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
3518 /* Fallthrough */
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
3519
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
3520 case on_failure_jump:
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
3521 case on_failure_keep_string_jump:
2370
d8ded9c0e20c (enum re_opcode_t): New opcode on_failure_jump_nastyloop.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2359
diff changeset
3522 case on_failure_jump_nastyloop:
2345
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
3523 case on_failure_jump_loop:
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
3524 case on_failure_jump_smart:
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
3525 EXTRACT_NUMBER_AND_INCR (j, p);
2345
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
3526 if (p + j <= p1)
2371
3274fb530385 (REGEX_FREE_STACK, RESET_FAIL_STACK): Make them usable as an expression.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2370
diff changeset
3527 ; /* Backward jump to be ignored. */
3274fb530385 (REGEX_FREE_STACK, RESET_FAIL_STACK): Make them usable as an expression.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2370
diff changeset
3528 else if (!PUSH_PATTERN_OP (p + j, fail_stack))
3274fb530385 (REGEX_FREE_STACK, RESET_FAIL_STACK): Make them usable as an expression.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2370
diff changeset
3529 return (RESET_FAIL_STACK (), -2);
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
3530 continue;
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
3531
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
2371
3274fb530385 (REGEX_FREE_STACK, RESET_FAIL_STACK): Make them usable as an expression.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2370
diff changeset
3533 case jump_n:
3274fb530385 (REGEX_FREE_STACK, RESET_FAIL_STACK): Make them usable as an expression.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2370
diff changeset
3534 /* This code simply does not properly handle forward jump_n. */
3274fb530385 (REGEX_FREE_STACK, RESET_FAIL_STACK): Make them usable as an expression.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2370
diff changeset
3535 DEBUG_STATEMENT (EXTRACT_NUMBER (j, p); assert (j < 0));
3274fb530385 (REGEX_FREE_STACK, RESET_FAIL_STACK): Make them usable as an expression.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2370
diff changeset
3536 p += 4;
3274fb530385 (REGEX_FREE_STACK, RESET_FAIL_STACK): Make them usable as an expression.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2370
diff changeset
3537 /* jump_n can either jump or fall through. The (backward) jump
3274fb530385 (REGEX_FREE_STACK, RESET_FAIL_STACK): Make them usable as an expression.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2370
diff changeset
3538 case has already been handled, so we only need to look at the
3274fb530385 (REGEX_FREE_STACK, RESET_FAIL_STACK): Make them usable as an expression.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2370
diff changeset
3539 fallthrough case. */
3274fb530385 (REGEX_FREE_STACK, RESET_FAIL_STACK): Make them usable as an expression.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2370
diff changeset
3540 continue;
3274fb530385 (REGEX_FREE_STACK, RESET_FAIL_STACK): Make them usable as an expression.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2370
diff changeset
3541
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
3542 case succeed_n:
2371
3274fb530385 (REGEX_FREE_STACK, RESET_FAIL_STACK): Make them usable as an expression.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2370
diff changeset
3543 /* If N == 0, it should be an on_failure_jump_loop instead. */
3274fb530385 (REGEX_FREE_STACK, RESET_FAIL_STACK): Make them usable as an expression.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2370
diff changeset
3544 DEBUG_STATEMENT (EXTRACT_NUMBER (j, p + 2); assert (j > 0));
3274fb530385 (REGEX_FREE_STACK, RESET_FAIL_STACK): Make them usable as an expression.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2370
diff changeset
3545 p += 4;
3274fb530385 (REGEX_FREE_STACK, RESET_FAIL_STACK): Make them usable as an expression.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2370
diff changeset
3546 /* We only care about one iteration of the loop, so we don't
3274fb530385 (REGEX_FREE_STACK, RESET_FAIL_STACK): Make them usable as an expression.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2370
diff changeset
3547 need to consider the case where this behaves like an
3274fb530385 (REGEX_FREE_STACK, RESET_FAIL_STACK): Make them usable as an expression.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2370
diff changeset
3548 on_failure_jump. */
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
3549 continue;
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
3550
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 case set_number_at:
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
3553 p += 4;
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
3554 continue;
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
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
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 case start_memory:
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
3558 case stop_memory:
2345
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
3559 p += 1;
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
3560 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
3561
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
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 default:
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
3564 abort (); /* We have listed all the cases. */
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
3565 } /* switch *p++ */
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
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 /* Getting here means we have found the possible starting
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
3568 characters for one path of the pattern -- and that the empty
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
3569 string does not match. We need not follow this path further.
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
3570 Instead, look at the next alternative (remembered on the
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
3571 stack), or quit if no more. The test at the top of the loop
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
3572 does these things. */
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
3573 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
3574 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
3575 } /* 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
3576
2372
c0c46914f4fe (analyse_first): New function obtained by ripping out most
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2371
diff changeset
3577 return (RESET_FAIL_STACK (), 0);
c0c46914f4fe (analyse_first): New function obtained by ripping out most
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2371
diff changeset
3578 } /* analyse_first */
c0c46914f4fe (analyse_first): New function obtained by ripping out most
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2371
diff changeset
3579
c0c46914f4fe (analyse_first): New function obtained by ripping out most
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2371
diff changeset
3580 /* re_compile_fastmap computes a ``fastmap'' for the compiled pattern in
c0c46914f4fe (analyse_first): New function obtained by ripping out most
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2371
diff changeset
3581 BUFP. A fastmap records which of the (1 << BYTEWIDTH) possible
c0c46914f4fe (analyse_first): New function obtained by ripping out most
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2371
diff changeset
3582 characters can start a string that matches the pattern. This fastmap
c0c46914f4fe (analyse_first): New function obtained by ripping out most
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2371
diff changeset
3583 is used by re_search to skip quickly over impossible starting points.
c0c46914f4fe (analyse_first): New function obtained by ripping out most
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2371
diff changeset
3584
c0c46914f4fe (analyse_first): New function obtained by ripping out most
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2371
diff changeset
3585 Character codes above (1 << BYTEWIDTH) are not represented in the
c0c46914f4fe (analyse_first): New function obtained by ripping out most
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2371
diff changeset
3586 fastmap, but the leading codes are represented. Thus, the fastmap
c0c46914f4fe (analyse_first): New function obtained by ripping out most
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2371
diff changeset
3587 indicates which character sets could start a match.
c0c46914f4fe (analyse_first): New function obtained by ripping out most
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2371
diff changeset
3588
c0c46914f4fe (analyse_first): New function obtained by ripping out most
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2371
diff changeset
3589 The caller must supply the address of a (1 << BYTEWIDTH)-byte data
c0c46914f4fe (analyse_first): New function obtained by ripping out most
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2371
diff changeset
3590 area as BUFP->fastmap.
c0c46914f4fe (analyse_first): New function obtained by ripping out most
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2371
diff changeset
3591
c0c46914f4fe (analyse_first): New function obtained by ripping out most
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2371
diff changeset
3592 We set the `fastmap', `fastmap_accurate', and `can_be_null' fields in
c0c46914f4fe (analyse_first): New function obtained by ripping out most
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2371
diff changeset
3593 the pattern buffer.
c0c46914f4fe (analyse_first): New function obtained by ripping out most
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2371
diff changeset
3594
c0c46914f4fe (analyse_first): New function obtained by ripping out most
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2371
diff changeset
3595 Returns 0 if we succeed, -2 if an internal error. */
c0c46914f4fe (analyse_first): New function obtained by ripping out most
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2371
diff changeset
3596
c0c46914f4fe (analyse_first): New function obtained by ripping out most
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2371
diff changeset
3597 int
c0c46914f4fe (analyse_first): New function obtained by ripping out most
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2371
diff changeset
3598 re_compile_fastmap (bufp)
c0c46914f4fe (analyse_first): New function obtained by ripping out most
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2371
diff changeset
3599 struct re_pattern_buffer *bufp;
c0c46914f4fe (analyse_first): New function obtained by ripping out most
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2371
diff changeset
3600 {
c0c46914f4fe (analyse_first): New function obtained by ripping out most
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2371
diff changeset
3601 char *fastmap = bufp->fastmap;
c0c46914f4fe (analyse_first): New function obtained by ripping out most
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2371
diff changeset
3602 int analysis;
c0c46914f4fe (analyse_first): New function obtained by ripping out most
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2371
diff changeset
3603
c0c46914f4fe (analyse_first): New function obtained by ripping out most
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2371
diff changeset
3604 assert (fastmap && bufp->buffer);
c0c46914f4fe (analyse_first): New function obtained by ripping out most
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2371
diff changeset
3605
c0c46914f4fe (analyse_first): New function obtained by ripping out most
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2371
diff changeset
3606 bzero (fastmap, 1 << BYTEWIDTH); /* Assume nothing's valid. */
c0c46914f4fe (analyse_first): New function obtained by ripping out most
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2371
diff changeset
3607 bufp->fastmap_accurate = 1; /* It will be when we're done. */
c0c46914f4fe (analyse_first): New function obtained by ripping out most
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2371
diff changeset
3608
c0c46914f4fe (analyse_first): New function obtained by ripping out most
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2371
diff changeset
3609 analysis = analyse_first (bufp->buffer, bufp->buffer + bufp->used,
2375
f25b865f900c * regex.c (PTR_TO_OFFSET) [!emacs]: Remove.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2372
diff changeset
3610 fastmap, RE_MULTIBYTE_P (bufp));
2372
c0c46914f4fe (analyse_first): New function obtained by ripping out most
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2371
diff changeset
3611 if (analysis < -1)
c0c46914f4fe (analyse_first): New function obtained by ripping out most
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2371
diff changeset
3612 return analysis;
c0c46914f4fe (analyse_first): New function obtained by ripping out most
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2371
diff changeset
3613 bufp->can_be_null = (analysis != 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
3614 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
3615 } /* 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
3616
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 /* 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
3618 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
3619 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
3620 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
3621 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
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 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
3624 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
3625
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 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
3627 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
3628 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
3629
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 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
3631 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
3632 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
3633 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
3634 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
3635 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
3636 {
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 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
3638 {
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 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
3640 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
3641 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
3642 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
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 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
3645 {
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 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
3647 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
3648 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
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 }
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
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
3652 /* Searching routines. */
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
3653
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 /* 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
3655 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
3656
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 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
3658 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
3659 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
3660 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
3661 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
3662 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
3663 {
515
69ba3b63e1d1 (gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents: 511
diff changeset
3664 return re_search_2 (bufp, NULL, 0, string, size, startpos, range,
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
3665 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
3666 }
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
939
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
3668 /* End address of virtual concatenation of string. */
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
3669 #define STOP_ADDR_VSTRING(P) \
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
3670 (((P) >= size1 ? string2 + size2 : string1 + size1))
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
3671
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
3672 /* Address of POS in the concatenation of virtual string. */
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
3673 #define POS_ADDR_VSTRING(POS) \
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
3674 (((POS) >= size1 ? string2 - size1 : string1) + (POS))
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
3675
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 /* 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
3677 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
3678 STARTPOS, then at STARTPOS + 1, and so on.
515
69ba3b63e1d1 (gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents: 511
diff changeset
3679
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
3680 STRING1 and STRING2 have length SIZE1 and SIZE2, respectively.
515
69ba3b63e1d1 (gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents: 511
diff changeset
3681
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
3682 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
3683 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
3684 RANGE.
515
69ba3b63e1d1 (gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents: 511
diff changeset
3685
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
3686 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
3687 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
3688 subexpressions.
515
69ba3b63e1d1 (gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents: 511
diff changeset
3689
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
3690 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
3691 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
3692
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 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
3694 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
3695 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
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 int
2349
5fa185a9956e * regex.c: Declare a new type `re_char' used throughout the code for the
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2345
diff changeset
3698 re_search_2 (bufp, str1, size1, str2, size2, startpos, range, regs, stop)
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
3699 struct re_pattern_buffer *bufp;
2349
5fa185a9956e * regex.c: Declare a new type `re_char' used throughout the code for the
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2345
diff changeset
3700 const char *str1, *str2;
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
3701 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
3702 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
3703 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
3704 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
3705 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
3706 {
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 int val;
2349
5fa185a9956e * regex.c: Declare a new type `re_char' used throughout the code for the
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2345
diff changeset
3708 re_char *string1 = (re_char*) str1;
5fa185a9956e * regex.c: Declare a new type `re_char' used throughout the code for the
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2345
diff changeset
3709 re_char *string2 = (re_char*) str2;
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
3710 register char *fastmap = bufp->fastmap;
501
f29b13c2cefd (TRANSLATE, PATFETCH): Cast elt of `translate'.
Richard Stallman <rms@gnu.org>
parents: 490
diff changeset
3711 register RE_TRANSLATE_TYPE translate = bufp->translate;
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
3712 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
3713 int endpos = startpos + range;
678
bd677f8ba924 (re_search_2): Optimize regexp that starts with ^.
Richard Stallman <rms@gnu.org>
parents: 677
diff changeset
3714 int anchored_start = 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
3715
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
3716 /* Nonzero if we have to concern multibyte character. */
2375
f25b865f900c * regex.c (PTR_TO_OFFSET) [!emacs]: Remove.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2372
diff changeset
3717 const boolean multibyte = RE_MULTIBYTE_P (bufp);
939
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
3718
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
3719 /* 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
3720 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
3721 return -1;
515
69ba3b63e1d1 (gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents: 511
diff changeset
3722
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
3723 /* Fix up RANGE if it might eventually take us outside
490
985fe9826996 (re_search_2): Use 0, not -1, as the lower bound
Richard Stallman <rms@gnu.org>
parents: 481
diff changeset
3724 the virtual concatenation of STRING1 and STRING2.
515
69ba3b63e1d1 (gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents: 511
diff changeset
3725 Make sure we won't move STARTPOS below 0 or above TOTAL_SIZE. */
490
985fe9826996 (re_search_2): Use 0, not -1, as the lower bound
Richard Stallman <rms@gnu.org>
parents: 481
diff changeset
3726 if (endpos < 0)
985fe9826996 (re_search_2): Use 0, not -1, as the lower bound
Richard Stallman <rms@gnu.org>
parents: 481
diff changeset
3727 range = 0 - startpos;
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
3728 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
3729 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
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 /* If the search isn't to be a backwards one, don't waste time in a
1329
818db3848f2b (re_search_2): Fix handling of at_dot.
Richard Stallman <rms@gnu.org>
parents: 1328
diff changeset
3732 search for a pattern anchored at beginning of buffer. */
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
3733 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
3734 {
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 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
3736 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
3737 else
1329
818db3848f2b (re_search_2): Fix handling of at_dot.
Richard Stallman <rms@gnu.org>
parents: 1328
diff changeset
3738 range = 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
3739 }
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
481
35afc74165b7 (re_search_2): If pattern starts with \=, optimize search.
Richard Stallman <rms@gnu.org>
parents: 480
diff changeset
3741 #ifdef emacs
35afc74165b7 (re_search_2): If pattern starts with \=, optimize search.
Richard Stallman <rms@gnu.org>
parents: 480
diff changeset
3742 /* In a forward search for something that starts with \=.
35afc74165b7 (re_search_2): If pattern starts with \=, optimize search.
Richard Stallman <rms@gnu.org>
parents: 480
diff changeset
3743 don't keep searching past point. */
35afc74165b7 (re_search_2): If pattern starts with \=, optimize search.
Richard Stallman <rms@gnu.org>
parents: 480
diff changeset
3744 if (bufp->used > 0 && (re_opcode_t) bufp->buffer[0] == at_dot && range > 0)
35afc74165b7 (re_search_2): If pattern starts with \=, optimize search.
Richard Stallman <rms@gnu.org>
parents: 480
diff changeset
3745 {
1329
818db3848f2b (re_search_2): Fix handling of at_dot.
Richard Stallman <rms@gnu.org>
parents: 1328
diff changeset
3746 range = PT_BYTE - BEGV_BYTE - startpos;
818db3848f2b (re_search_2): Fix handling of at_dot.
Richard Stallman <rms@gnu.org>
parents: 1328
diff changeset
3747 if (range < 0)
481
35afc74165b7 (re_search_2): If pattern starts with \=, optimize search.
Richard Stallman <rms@gnu.org>
parents: 480
diff changeset
3748 return -1;
35afc74165b7 (re_search_2): If pattern starts with \=, optimize search.
Richard Stallman <rms@gnu.org>
parents: 480
diff changeset
3749 }
35afc74165b7 (re_search_2): If pattern starts with \=, optimize search.
Richard Stallman <rms@gnu.org>
parents: 480
diff changeset
3750 #endif /* emacs */
35afc74165b7 (re_search_2): If pattern starts with \=, optimize search.
Richard Stallman <rms@gnu.org>
parents: 480
diff changeset
3751
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
3752 /* 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
3753 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
3754 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
3755 return -2;
515
69ba3b63e1d1 (gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents: 511
diff changeset
3756
678
bd677f8ba924 (re_search_2): Optimize regexp that starts with ^.
Richard Stallman <rms@gnu.org>
parents: 677
diff changeset
3757 /* See whether the pattern is anchored. */
bd677f8ba924 (re_search_2): Optimize regexp that starts with ^.
Richard Stallman <rms@gnu.org>
parents: 677
diff changeset
3758 if (bufp->buffer[0] == begline)
bd677f8ba924 (re_search_2): Optimize regexp that starts with ^.
Richard Stallman <rms@gnu.org>
parents: 677
diff changeset
3759 anchored_start = 1;
bd677f8ba924 (re_search_2): Optimize regexp that starts with ^.
Richard Stallman <rms@gnu.org>
parents: 677
diff changeset
3760
939
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
3761 #ifdef emacs
1321
a37088328c87 (re_match_2, re_search_2): Convert position to a charpos,
Karl Heuer <kwzh@gnu.org>
parents: 1313
diff changeset
3762 gl_state.object = re_match_object;
a37088328c87 (re_match_2, re_search_2): Convert position to a charpos,
Karl Heuer <kwzh@gnu.org>
parents: 1313
diff changeset
3763 {
2350
f3edfed6aa96 (re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2349
diff changeset
3764 int charpos = SYNTAX_TABLE_BYTE_TO_CHAR (POS_AS_IN_BUFFER (startpos));
1321
a37088328c87 (re_match_2, re_search_2): Convert position to a charpos,
Karl Heuer <kwzh@gnu.org>
parents: 1313
diff changeset
3765
a37088328c87 (re_match_2, re_search_2): Convert position to a charpos,
Karl Heuer <kwzh@gnu.org>
parents: 1313
diff changeset
3766 SETUP_SYNTAX_TABLE_FOR_OBJECT (re_match_object, charpos, 1);
a37088328c87 (re_match_2, re_search_2): Convert position to a charpos,
Karl Heuer <kwzh@gnu.org>
parents: 1313
diff changeset
3767 }
939
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
3768 #endif
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
3769
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
3770 /* 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
3771 for (;;)
515
69ba3b63e1d1 (gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents: 511
diff changeset
3772 {
678
bd677f8ba924 (re_search_2): Optimize regexp that starts with ^.
Richard Stallman <rms@gnu.org>
parents: 677
diff changeset
3773 /* If the pattern is anchored,
bd677f8ba924 (re_search_2): Optimize regexp that starts with ^.
Richard Stallman <rms@gnu.org>
parents: 677
diff changeset
3774 skip quickly past places we cannot match.
bd677f8ba924 (re_search_2): Optimize regexp that starts with ^.
Richard Stallman <rms@gnu.org>
parents: 677
diff changeset
3775 We don't bother to treat startpos == 0 specially
bd677f8ba924 (re_search_2): Optimize regexp that starts with ^.
Richard Stallman <rms@gnu.org>
parents: 677
diff changeset
3776 because that case doesn't repeat. */
bd677f8ba924 (re_search_2): Optimize regexp that starts with ^.
Richard Stallman <rms@gnu.org>
parents: 677
diff changeset
3777 if (anchored_start && startpos > 0)
bd677f8ba924 (re_search_2): Optimize regexp that starts with ^.
Richard Stallman <rms@gnu.org>
parents: 677
diff changeset
3778 {
bd677f8ba924 (re_search_2): Optimize regexp that starts with ^.
Richard Stallman <rms@gnu.org>
parents: 677
diff changeset
3779 if (! (bufp->newline_anchor
bd677f8ba924 (re_search_2): Optimize regexp that starts with ^.
Richard Stallman <rms@gnu.org>
parents: 677
diff changeset
3780 && ((startpos <= size1 ? string1[startpos - 1]
bd677f8ba924 (re_search_2): Optimize regexp that starts with ^.
Richard Stallman <rms@gnu.org>
parents: 677
diff changeset
3781 : string2[startpos - size1 - 1])
bd677f8ba924 (re_search_2): Optimize regexp that starts with ^.
Richard Stallman <rms@gnu.org>
parents: 677
diff changeset
3782 == '\n')))
bd677f8ba924 (re_search_2): Optimize regexp that starts with ^.
Richard Stallman <rms@gnu.org>
parents: 677
diff changeset
3783 goto advance;
bd677f8ba924 (re_search_2): Optimize regexp that starts with ^.
Richard Stallman <rms@gnu.org>
parents: 677
diff changeset
3784 }
bd677f8ba924 (re_search_2): Optimize regexp that starts with ^.
Richard Stallman <rms@gnu.org>
parents: 677
diff changeset
3785
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
3786 /* If a fastmap is supplied, skip quickly over characters that
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
3787 cannot be the start of a match. If the pattern can match the
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
3788 null string, however, we don't need to skip characters; we want
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
3789 the first null string. */
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
3790 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
3791 {
2349
5fa185a9956e * regex.c: Declare a new type `re_char' used throughout the code for the
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2345
diff changeset
3792 register re_char *d;
1296
7b938cc81ae2 (compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents: 1218
diff changeset
3793 register unsigned int buf_ch;
7b938cc81ae2 (compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents: 1218
diff changeset
3794
7b938cc81ae2 (compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents: 1218
diff changeset
3795 d = POS_ADDR_VSTRING (startpos);
7b938cc81ae2 (compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents: 1218
diff changeset
3796
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
3797 if (range > 0) /* Searching forwards. */
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
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 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
3800 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
3801
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
3802 if (startpos < size1 && startpos + range >= size1)
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
3803 lim = range - (size1 - startpos);
939
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
3804
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
3805 /* Written out as an if-else to avoid testing `translate'
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
3806 inside the loop. */
1335
97f50084cc62 (re_search_2): Fix indentation.
Andreas Schwab <schwab@suse.de>
parents: 1329
diff changeset
3807 if (RE_TRANSLATE_P (translate))
97f50084cc62 (re_search_2): Fix indentation.
Andreas Schwab <schwab@suse.de>
parents: 1329
diff changeset
3808 {
1296
7b938cc81ae2 (compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents: 1218
diff changeset
3809 if (multibyte)
7b938cc81ae2 (compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents: 1218
diff changeset
3810 while (range > lim)
7b938cc81ae2 (compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents: 1218
diff changeset
3811 {
7b938cc81ae2 (compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents: 1218
diff changeset
3812 int buf_charlen;
7b938cc81ae2 (compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents: 1218
diff changeset
3813
7b938cc81ae2 (compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents: 1218
diff changeset
3814 buf_ch = STRING_CHAR_AND_LENGTH (d, range - lim,
7b938cc81ae2 (compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents: 1218
diff changeset
3815 buf_charlen);
7b938cc81ae2 (compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents: 1218
diff changeset
3816
7b938cc81ae2 (compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents: 1218
diff changeset
3817 buf_ch = RE_TRANSLATE (translate, buf_ch);
7b938cc81ae2 (compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents: 1218
diff changeset
3818 if (buf_ch >= 0400
7b938cc81ae2 (compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents: 1218
diff changeset
3819 || fastmap[buf_ch])
7b938cc81ae2 (compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents: 1218
diff changeset
3820 break;
7b938cc81ae2 (compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents: 1218
diff changeset
3821
7b938cc81ae2 (compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents: 1218
diff changeset
3822 range -= buf_charlen;
7b938cc81ae2 (compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents: 1218
diff changeset
3823 d += buf_charlen;
7b938cc81ae2 (compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents: 1218
diff changeset
3824 }
7b938cc81ae2 (compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents: 1218
diff changeset
3825 else
7b938cc81ae2 (compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents: 1218
diff changeset
3826 while (range > lim
2349
5fa185a9956e * regex.c: Declare a new type `re_char' used throughout the code for the
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2345
diff changeset
3827 && !fastmap[RE_TRANSLATE (translate, *d)])
1381
24423cbaf6a9 (re_search_2): Don't use ++ inside RE_TRANSLATE.
Richard Stallman <rms@gnu.org>
parents: 1342
diff changeset
3828 {
24423cbaf6a9 (re_search_2): Don't use ++ inside RE_TRANSLATE.
Richard Stallman <rms@gnu.org>
parents: 1342
diff changeset
3829 d++;
24423cbaf6a9 (re_search_2): Don't use ++ inside RE_TRANSLATE.
Richard Stallman <rms@gnu.org>
parents: 1342
diff changeset
3830 range--;
24423cbaf6a9 (re_search_2): Don't use ++ inside RE_TRANSLATE.
Richard Stallman <rms@gnu.org>
parents: 1342
diff changeset
3831 }
1296
7b938cc81ae2 (compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents: 1218
diff changeset
3832 }
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
3833 else
2349
5fa185a9956e * regex.c: Declare a new type `re_char' used throughout the code for the
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2345
diff changeset
3834 while (range > lim && !fastmap[*d])
1381
24423cbaf6a9 (re_search_2): Don't use ++ inside RE_TRANSLATE.
Richard Stallman <rms@gnu.org>
parents: 1342
diff changeset
3835 {
24423cbaf6a9 (re_search_2): Don't use ++ inside RE_TRANSLATE.
Richard Stallman <rms@gnu.org>
parents: 1342
diff changeset
3836 d++;
24423cbaf6a9 (re_search_2): Don't use ++ inside RE_TRANSLATE.
Richard Stallman <rms@gnu.org>
parents: 1342
diff changeset
3837 range--;
24423cbaf6a9 (re_search_2): Don't use ++ inside RE_TRANSLATE.
Richard Stallman <rms@gnu.org>
parents: 1342
diff changeset
3838 }
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
3839
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 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
3841 }
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
3842 else /* Searching backwards. */
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
3843 {
2375
f25b865f900c * regex.c (PTR_TO_OFFSET) [!emacs]: Remove.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2372
diff changeset
3844 int room = (startpos >= size1
f25b865f900c * regex.c (PTR_TO_OFFSET) [!emacs]: Remove.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2372
diff changeset
3845 ? size2 + size1 - startpos
f25b865f900c * regex.c (PTR_TO_OFFSET) [!emacs]: Remove.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2372
diff changeset
3846 : size1 - startpos);
f25b865f900c * regex.c (PTR_TO_OFFSET) [!emacs]: Remove.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2372
diff changeset
3847 buf_ch = RE_STRING_CHAR (d, room);
f25b865f900c * regex.c (PTR_TO_OFFSET) [!emacs]: Remove.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2372
diff changeset
3848 buf_ch = TRANSLATE (buf_ch);
1296
7b938cc81ae2 (compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents: 1218
diff changeset
3849
7b938cc81ae2 (compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents: 1218
diff changeset
3850 if (! (buf_ch >= 0400
7b938cc81ae2 (compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents: 1218
diff changeset
3851 || fastmap[buf_ch]))
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
3852 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
3853 }
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 }
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 /* 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
3857 if (range >= 0 && startpos == total_size && fastmap
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
3858 && !bufp->can_be_null)
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
3859 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
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 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
3862 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
3863 #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
3864 #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
3865 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
3866 #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
3867 #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
3868
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 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
3870 return startpos;
515
69ba3b63e1d1 (gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents: 511
diff changeset
3871
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
3872 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
3873 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
3874
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 advance:
515
69ba3b63e1d1 (gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents: 511
diff changeset
3876 if (!range)
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
3877 break;
515
69ba3b63e1d1 (gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents: 511
diff changeset
3878 else if (range > 0)
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
3879 {
939
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
3880 /* Update STARTPOS to the next character boundary. */
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
3881 if (multibyte)
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
3882 {
2349
5fa185a9956e * regex.c: Declare a new type `re_char' used throughout the code for the
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2345
diff changeset
3883 re_char *p = POS_ADDR_VSTRING (startpos);
5fa185a9956e * regex.c: Declare a new type `re_char' used throughout the code for the
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2345
diff changeset
3884 re_char *pend = STOP_ADDR_VSTRING (startpos);
939
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
3885 int len = MULTIBYTE_FORM_LENGTH (p, pend - p);
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
3886
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
3887 range -= len;
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
3888 if (range < 0)
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
3889 break;
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
3890 startpos += len;
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
3891 }
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
3892 else
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
3893 {
961
6959c7741ed2 (re_search_2): Cast result of POS_ADDR_VSTRING.
Richard Stallman <rms@gnu.org>
parents: 942
diff changeset
3894 range--;
6959c7741ed2 (re_search_2): Cast result of POS_ADDR_VSTRING.
Richard Stallman <rms@gnu.org>
parents: 942
diff changeset
3895 startpos++;
6959c7741ed2 (re_search_2): Cast result of POS_ADDR_VSTRING.
Richard Stallman <rms@gnu.org>
parents: 942
diff changeset
3896 }
679
b088267ea1c8 Clean up whitespace.
Richard Stallman <rms@gnu.org>
parents: 678
diff changeset
3897 }
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
3898 else
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
3899 {
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
3900 range++;
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
3901 startpos--;
939
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
3902
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
3903 /* Update STARTPOS to the previous character boundary. */
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
3904 if (multibyte)
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
3905 {
2349
5fa185a9956e * regex.c: Declare a new type `re_char' used throughout the code for the
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2345
diff changeset
3906 re_char *p = POS_ADDR_VSTRING (startpos);
939
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
3907 int len = 0;
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
3908
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
3909 /* Find the head of multibyte form. */
1204
28ff40a118b8 (re_search_2): Fix call to CHAR_HEAD_P.
Richard Stallman <rms@gnu.org>
parents: 1158
diff changeset
3910 while (!CHAR_HEAD_P (*p))
939
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
3911 p--, len++;
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
3912
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
3913 /* Adjust it. */
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
3914 #if 0 /* XXX */
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
3915 if (MULTIBYTE_FORM_LENGTH (p, len + 1) != (len + 1))
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
3916 ;
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
3917 else
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
3918 #endif
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
3919 {
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
3920 range += len;
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
3921 if (range > 0)
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
3922 break;
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
3923
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
3924 startpos -= len;
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
3925 }
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
3926 }
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
3927 }
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
3928 }
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 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
3930 } /* 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
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 /* 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
3933
2375
f25b865f900c * regex.c (PTR_TO_OFFSET) [!emacs]: Remove.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2372
diff changeset
3934 static int bcmp_translate _RE_ARGS((re_char *s1, re_char *s2,
f25b865f900c * regex.c (PTR_TO_OFFSET) [!emacs]: Remove.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2372
diff changeset
3935 register int len,
f25b865f900c * regex.c (PTR_TO_OFFSET) [!emacs]: Remove.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2372
diff changeset
3936 RE_TRANSLATE_TYPE translate,
f25b865f900c * regex.c (PTR_TO_OFFSET) [!emacs]: Remove.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2372
diff changeset
3937 const int multibyte));
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
3938
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 /* 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
3940 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
3941 #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
3942 (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
3943 ? ((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
3944 : ((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
3945
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 /* Call before fetching a character with *d. This switches over to
2438
c6d2b36bed68 (re_match_2_internal): Don't shorten the strings anymore,
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2375
diff changeset
3947 string2 if necessary.
c6d2b36bed68 (re_match_2_internal): Don't shorten the strings anymore,
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2375
diff changeset
3948 Check re_match_2_internal for a discussion of why end_match_2 might
c6d2b36bed68 (re_match_2_internal): Don't shorten the strings anymore,
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2375
diff changeset
3949 not be within string2 (but be equal to end_match_1 instead). */
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
3950 #define PREFETCH() \
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
3951 while (d == dend) \
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
3952 { \
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 /* End of string2 => fail. */ \
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
3954 if (dend == end_match_2) \
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
3955 goto fail; \
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
3956 /* End of string1 => advance to string2. */ \
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
3957 d = string2; \
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
3958 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
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
2551
b341325934ed (PREFETCH_NOLIMIT): New function.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2537
diff changeset
3961 /* Call before fetching a char with *d if you already checked other limits.
b341325934ed (PREFETCH_NOLIMIT): New function.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2537
diff changeset
3962 This is meant for use in lookahead operations like wordend, etc..
b341325934ed (PREFETCH_NOLIMIT): New function.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2537
diff changeset
3963 where we might need to look at parts of the string that might be
b341325934ed (PREFETCH_NOLIMIT): New function.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2537
diff changeset
3964 outside of the LIMITs (i.e past `stop'). */
b341325934ed (PREFETCH_NOLIMIT): New function.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2537
diff changeset
3965 #define PREFETCH_NOLIMIT() \
b341325934ed (PREFETCH_NOLIMIT): New function.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2537
diff changeset
3966 if (d == end1) \
b341325934ed (PREFETCH_NOLIMIT): New function.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2537
diff changeset
3967 { \
b341325934ed (PREFETCH_NOLIMIT): New function.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2537
diff changeset
3968 d = string2; \
b341325934ed (PREFETCH_NOLIMIT): New function.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2537
diff changeset
3969 dend = end_match_2; \
b341325934ed (PREFETCH_NOLIMIT): New function.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2537
diff changeset
3970 } \
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
3971
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 /* Test if at very beginning or at very end of the virtual concatenation
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
3973 of `string1' and `string2'. If only one string, it's `string2'. */
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
3974 #define AT_STRINGS_BEG(d) ((d) == (size1 ? string1 : string2) || !size2)
515
69ba3b63e1d1 (gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents: 511
diff changeset
3975 #define AT_STRINGS_END(d) ((d) == end2)
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
3976
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 /* 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
3979 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
3980 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
3981 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
3982 #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
3983 (SYNTAX ((d) == end1 ? *string2 \
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
3984 : (d) == string2 - 1 ? *(end1 - 1) : *(d)) \
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
3985 == 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
3986
521
7089c3a3a164 (AT_WORD_BOUNDARY): Disable macro.
Karl Heuer <kwzh@gnu.org>
parents: 515
diff changeset
3987 /* Disabled due to a compiler bug -- see comment at case wordbound */
939
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
3988
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
3989 /* The comment at case wordbound is following one, but we don't use
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
3990 AT_WORD_BOUNDARY anymore to support multibyte form.
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
3991
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
3992 The DEC Alpha C compiler 3.x generates incorrect code for the
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
3993 test WORDCHAR_P (d - 1) != WORDCHAR_P (d) in the expansion of
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
3994 AT_WORD_BOUNDARY, so this code is disabled. Expanding the
939
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
3995 macro and introducing temporary variables works around the bug. */
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
3996
521
7089c3a3a164 (AT_WORD_BOUNDARY): Disable macro.
Karl Heuer <kwzh@gnu.org>
parents: 515
diff changeset
3997 #if 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
3998 /* 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
3999 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
4000 #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
4001 (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
4002 || WORDCHAR_P (d - 1) != WORDCHAR_P (d))
521
7089c3a3a164 (AT_WORD_BOUNDARY): Disable macro.
Karl Heuer <kwzh@gnu.org>
parents: 515
diff changeset
4003 #endif
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
4004
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 /* 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
4006 #ifdef MATCH_MAY_ALLOCATE
942
c6196b52ec1d Fix previous change.
Richard Stallman <rms@gnu.org>
parents: 941
diff changeset
4007 #define FREE_VAR(var) if (var) { REGEX_FREE (var); var = NULL; } else
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
4008 #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
4009 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
4010 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
4011 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
4012 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
4013 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
4014 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
4015 } 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
4016 #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
4017 #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
4018 #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
4019
2345
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
4020
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
4021 /* Optimization routines. */
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
4022
2355
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
4023 /* If the operation is a match against one or more chars,
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
4024 return a pointer to the next operation, else return NULL. */
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
4025 static unsigned char *
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
4026 skip_one_char (p)
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
4027 unsigned char *p;
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
4028 {
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
4029 switch (SWITCH_ENUM_CAST (*p++))
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
4030 {
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
4031 case anychar:
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
4032 break;
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
4033
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
4034 case exactn:
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
4035 p += *p + 1;
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
4036 break;
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
4037
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
4038 case charset_not:
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
4039 case charset:
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
4040 if (CHARSET_RANGE_TABLE_EXISTS_P (p - 1))
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
4041 {
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
4042 int mcnt;
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
4043 p = CHARSET_RANGE_TABLE (p - 1);
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
4044 EXTRACT_NUMBER_AND_INCR (mcnt, p);
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
4045 p = CHARSET_RANGE_TABLE_END (p, mcnt);
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
4046 }
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
4047 else
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
4048 p += 1 + CHARSET_BITMAP_SIZE (p - 1);
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
4049 break;
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
4050
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
4051 case syntaxspec:
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
4052 case notsyntaxspec:
2356
d93889e88226 (CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2355
diff changeset
4053 #ifdef emacs
2355
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
4054 case categoryspec:
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
4055 case notcategoryspec:
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
4056 #endif /* emacs */
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
4057 p++;
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
4058 break;
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
4059
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
4060 default:
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
4061 p = NULL;
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
4062 }
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
4063 return p;
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
4064 }
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
4065
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
4066
2345
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
4067 /* Jump over non-matching operations. */
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
4068 static unsigned char *
2355
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
4069 skip_noops (p, pend)
2345
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
4070 unsigned char *p, *pend;
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
4071 {
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
4072 int mcnt;
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
4073 while (p < pend)
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
4074 {
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
4075 switch (SWITCH_ENUM_CAST ((re_opcode_t) *p))
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
4076 {
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
4077 case start_memory:
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
4078 case stop_memory:
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
4079 p += 2; break;
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
4080 case no_op:
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
4081 p += 1; break;
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
4082 case jump:
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
4083 p += 1;
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
4084 EXTRACT_NUMBER_AND_INCR (mcnt, p);
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
4085 p += mcnt;
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
4086 break;
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
4087 default:
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
4088 return p;
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
4089 }
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
4090 }
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
4091 assert (p == pend);
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
4092 return p;
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
4093 }
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
4094
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
4095 /* Non-zero if "p1 matches something" implies "p2 fails". */
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
4096 static int
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
4097 mutually_exclusive_p (bufp, p1, p2)
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
4098 struct re_pattern_buffer *bufp;
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
4099 unsigned char *p1, *p2;
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
4100 {
2355
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
4101 re_opcode_t op2;
2375
f25b865f900c * regex.c (PTR_TO_OFFSET) [!emacs]: Remove.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2372
diff changeset
4102 const boolean multibyte = RE_MULTIBYTE_P (bufp);
2345
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
4103 unsigned char *pend = bufp->buffer + bufp->used;
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
4104
2355
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
4105 assert (p1 >= bufp->buffer && p1 < pend
2345
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
4106 && p2 >= bufp->buffer && p2 <= pend);
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
4107
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
4108 /* Skip over open/close-group commands.
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
4109 If what follows this loop is a ...+ construct,
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
4110 look at what begins its body, since we will have to
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
4111 match at least one of that. */
2355
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
4112 p2 = skip_noops (p2, pend);
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
4113 /* The same skip can be done for p1, except that this function
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
4114 is only used in the case where p1 is a simple match operator. */
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
4115 /* p1 = skip_noops (p1, pend); */
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
4116
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
4117 assert (p1 >= bufp->buffer && p1 < pend
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
4118 && p2 >= bufp->buffer && p2 <= pend);
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
4119
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
4120 op2 = p2 == pend ? succeed : *p2;
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
4121
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
4122 switch (SWITCH_ENUM_CAST (op2))
2345
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
4123 {
2355
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
4124 case succeed:
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
4125 case endbuf:
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
4126 /* If we're at the end of the pattern, we can change. */
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
4127 if (skip_one_char (p1))
2345
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
4128 {
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
4129 DEBUG_PRINT1 (" End of pattern: fast loop.\n");
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
4130 return 1;
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
4131 }
2355
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
4132 break;
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
4133
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
4134 case endline:
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
4135 if (!bufp->newline_anchor)
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
4136 break;
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
4137 /* Fallthrough */
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
4138 case exactn:
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
4139 {
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
4140 register unsigned int c
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
4141 = (re_opcode_t) *p2 == endline ? '\n'
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
4142 : RE_STRING_CHAR(p2 + 2, pend - p2 - 2);
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
4143
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
4144 if ((re_opcode_t) *p1 == exactn)
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
4145 {
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
4146 if (c != RE_STRING_CHAR (p1 + 2, pend - p1 - 2))
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
4147 {
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
4148 DEBUG_PRINT3 (" '%c' != '%c' => fast loop.\n", c, p1[2]);
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
4149 return 1;
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
4150 }
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
4151 }
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
4152
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
4153 else if ((re_opcode_t) *p1 == charset
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
4154 || (re_opcode_t) *p1 == charset_not)
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
4155 {
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
4156 int not = (re_opcode_t) *p1 == charset_not;
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
4157
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
4158 /* Test if C is listed in charset (or charset_not)
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
4159 at `p1'. */
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
4160 if (SINGLE_BYTE_CHAR_P (c))
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
4161 {
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
4162 if (c < CHARSET_BITMAP_SIZE (p1) * BYTEWIDTH
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
4163 && p1[2 + c / BYTEWIDTH] & (1 << (c % BYTEWIDTH)))
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
4164 not = !not;
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
4165 }
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
4166 else if (CHARSET_RANGE_TABLE_EXISTS_P (p1))
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
4167 CHARSET_LOOKUP_RANGE_TABLE (not, c, p1);
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
4168
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
4169 /* `not' is equal to 1 if c would match, which means
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
4170 that we can't change to pop_failure_jump. */
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
4171 if (!not)
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
4172 {
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
4173 DEBUG_PRINT1 (" No match => fast loop.\n");
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
4174 return 1;
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
4175 }
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
4176 }
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
4177 else if ((re_opcode_t) *p1 == anychar
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
4178 && c == '\n')
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
4179 {
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
4180 DEBUG_PRINT1 (" . != \\n => fast loop.\n");
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
4181 return 1;
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
4182 }
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
4183 }
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
4184 break;
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
4185
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
4186 case charset:
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
4187 case charset_not:
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
4188 {
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
4189 if ((re_opcode_t) *p1 == exactn)
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
4190 /* Reuse the code above. */
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
4191 return mutually_exclusive_p (bufp, p2, p1);
2345
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
4192
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
4193
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
4194 /* It is hard to list up all the character in charset
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
4195 P2 if it includes multibyte character. Give up in
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
4196 such case. */
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
4197 else if (!multibyte || !CHARSET_RANGE_TABLE_EXISTS_P (p2))
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
4198 {
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
4199 /* Now, we are sure that P2 has no range table.
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
4200 So, for the size of bitmap in P2, `p2[1]' is
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
4201 enough. But P1 may have range table, so the
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
4202 size of bitmap table of P1 is extracted by
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
4203 using macro `CHARSET_BITMAP_SIZE'.
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
4204
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
4205 Since we know that all the character listed in
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
4206 P2 is ASCII, it is enough to test only bitmap
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
4207 table of P1. */
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
4208
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
4209 if (*p1 == *p2)
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
4210 {
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
4211 int idx;
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
4212 /* We win if the charset inside the loop
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
4213 has no overlap with the one after the loop. */
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
4214 for (idx = 0;
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
4215 (idx < (int) p2[1]
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
4216 && idx < CHARSET_BITMAP_SIZE (p1));
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
4217 idx++)
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
4218 if ((p2[2 + idx] & p1[2 + idx]) != 0)
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
4219 break;
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
4220
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
4221 if (idx == p2[1]
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
4222 || idx == CHARSET_BITMAP_SIZE (p1))
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
4223 {
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
4224 DEBUG_PRINT1 (" No match => fast loop.\n");
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
4225 return 1;
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
4226 }
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
4227 }
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
4228 else if ((re_opcode_t) *p1 == charset
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
4229 || (re_opcode_t) *p1 == charset_not)
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
4230 {
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
4231 int idx;
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
4232 /* We win if the charset_not inside the loop lists
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
4233 every character listed in the charset after. */
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
4234 for (idx = 0; idx < (int) p2[1]; idx++)
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
4235 if (! (p2[2 + idx] == 0
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
4236 || (idx < CHARSET_BITMAP_SIZE (p1)
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
4237 && ((p2[2 + idx] & ~ p1[2 + idx]) == 0))))
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
4238 break;
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
4239
2355
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
4240 if (idx == p2[1])
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
4241 {
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
4242 DEBUG_PRINT1 (" No match => fast loop.\n");
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
4243 return 1;
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
4244 }
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
4245 }
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
4246 }
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
4247 }
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
4248
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
4249 case wordend:
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
4250 case notsyntaxspec:
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
4251 return ((re_opcode_t) *p1 == syntaxspec
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
4252 && p1[1] == (op2 == wordend ? Sword : p2[1]));
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
4253
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
4254 case wordbeg:
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
4255 case syntaxspec:
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
4256 return ((re_opcode_t) *p1 == notsyntaxspec
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
4257 && p1[1] == (op2 == wordend ? Sword : p2[1]));
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
4258
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
4259 case wordbound:
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
4260 return (((re_opcode_t) *p1 == notsyntaxspec
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
4261 || (re_opcode_t) *p1 == syntaxspec)
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
4262 && p1[1] == Sword);
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
4263
2356
d93889e88226 (CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2355
diff changeset
4264 #ifdef emacs
2355
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
4265 case categoryspec:
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
4266 return ((re_opcode_t) *p1 == notcategoryspec && p1[1] == p2[1]);
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
4267 case notcategoryspec:
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
4268 return ((re_opcode_t) *p1 == categoryspec && p1[1] == p2[1]);
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
4269 #endif /* emacs */
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
4270
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
4271 default:
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
4272 ;
2345
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
4273 }
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
4274
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
4275 /* Safe default. */
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
4276 return 0;
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
4277 }
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
4278
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
4279
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 /* 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
4281
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4282 #ifndef emacs /* Emacs never uses this. */
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
4283 /* 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
4284
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 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
4286 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
4287 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
4288 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
4289 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
4290 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
4291 {
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 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
4293 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
4294 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
4295 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
4296 }
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 #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
4298
939
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
4299 #ifdef emacs
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
4300 /* In Emacs, this is the string or buffer in which we
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4301 are matching. It is used for looking up syntax properties. */
939
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
4302 Lisp_Object re_match_object;
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
4303 #endif
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
4304
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 /* 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
4306 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
4307 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
4308 matching at STOP.
515
69ba3b63e1d1 (gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents: 511
diff changeset
4309
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
4310 If REGS is non-null and the `no_sub' field of BUFP is nonzero, we
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4311 store offsets for the substring each group matched in REGS. See the
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
4312 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
4313
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 We return -1 if no match, -2 if an internal error (such as the
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4315 failure stack overflowing). Otherwise, we return the length of the
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
4316 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
4317
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 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
4319 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
4320 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
4321 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
4322 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
4323 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
4324 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
4325 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
4326 {
939
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
4327 int result;
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4328
939
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
4329 #ifdef emacs
1321
a37088328c87 (re_match_2, re_search_2): Convert position to a charpos,
Karl Heuer <kwzh@gnu.org>
parents: 1313
diff changeset
4330 int charpos;
a37088328c87 (re_match_2, re_search_2): Convert position to a charpos,
Karl Heuer <kwzh@gnu.org>
parents: 1313
diff changeset
4331 gl_state.object = re_match_object;
2350
f3edfed6aa96 (re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2349
diff changeset
4332 charpos = SYNTAX_TABLE_BYTE_TO_CHAR (POS_AS_IN_BUFFER (pos));
1321
a37088328c87 (re_match_2, re_search_2): Convert position to a charpos,
Karl Heuer <kwzh@gnu.org>
parents: 1313
diff changeset
4333 SETUP_SYNTAX_TABLE_FOR_OBJECT (re_match_object, charpos, 1);
939
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
4334 #endif
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
4335
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
4336 result = re_match_2_internal (bufp, string1, size1, string2, size2,
1321
a37088328c87 (re_match_2, re_search_2): Convert position to a charpos,
Karl Heuer <kwzh@gnu.org>
parents: 1313
diff changeset
4337 pos, regs, stop);
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
4338 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
4339 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
4340 }
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
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 /* This is a separate function so that we can force an alloca cleanup
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4343 afterwards. */
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
4344 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
4345 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
4346 struct re_pattern_buffer *bufp;
2349
5fa185a9956e * regex.c: Declare a new type `re_char' used throughout the code for the
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2345
diff changeset
4347 re_char *string1, *string2;
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
4348 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
4349 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
4350 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
4351 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
4352 {
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 /* 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
4354 int mcnt;
2349
5fa185a9956e * regex.c: Declare a new type `re_char' used throughout the code for the
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2345
diff changeset
4355 boolean not;
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
4356 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
4357
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 /* Just past the end of the corresponding string. */
2349
5fa185a9956e * regex.c: Declare a new type `re_char' used throughout the code for the
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2345
diff changeset
4359 re_char *end1, *end2;
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
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 /* Pointers into string1 and string2, just past the last characters in
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4362 each to consider matching. */
2349
5fa185a9956e * regex.c: Declare a new type `re_char' used throughout the code for the
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2345
diff changeset
4363 re_char *end_match_1, *end_match_2;
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
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 /* Where we are in the data, and the end of the current string. */
2349
5fa185a9956e * regex.c: Declare a new type `re_char' used throughout the code for the
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2345
diff changeset
4366 re_char *d, *dend;
515
69ba3b63e1d1 (gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents: 511
diff changeset
4367
2350
f3edfed6aa96 (re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2349
diff changeset
4368 /* Used sometimes to remember where we were before starting matching
f3edfed6aa96 (re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2349
diff changeset
4369 an operator so that we can go back in case of failure. This "atomic"
f3edfed6aa96 (re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2349
diff changeset
4370 behavior of matching opcodes is indispensable to the correctness
f3edfed6aa96 (re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2349
diff changeset
4371 of the on_failure_keep_string_jump optimization. */
f3edfed6aa96 (re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2349
diff changeset
4372 re_char *dfail;
f3edfed6aa96 (re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2349
diff changeset
4373
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
4374 /* 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
4375 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
4376 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
4377
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4378 /* We use this to map every character in the string. */
501
f29b13c2cefd (TRANSLATE, PATFETCH): Cast elt of `translate'.
Richard Stallman <rms@gnu.org>
parents: 490
diff changeset
4379 RE_TRANSLATE_TYPE translate = bufp->translate;
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
4380
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4381 /* Nonzero if we have to concern multibyte character. */
2375
f25b865f900c * regex.c (PTR_TO_OFFSET) [!emacs]: Remove.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2372
diff changeset
4382 const boolean multibyte = RE_MULTIBYTE_P (bufp);
939
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
4383
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
4384 /* 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
4385 down the line pushes a failure point on this stack. It consists of
2345
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
4386 regstart, and regend for all registers corresponding to
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
4387 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
4388 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
4389 to resume scanning the pattern; the second one is where to resume
2345
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
4390 scanning the strings. */
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4391 #ifdef MATCH_MAY_ALLOCATE /* otherwise, this is global. */
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
4392 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
4393 #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
4394 #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
4395 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
4396 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
4397 #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
4398
2350
f3edfed6aa96 (re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2349
diff changeset
4399 #if defined (REL_ALLOC) && defined (REGEX_MALLOC)
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
4400 /* 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
4401 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
4402 fail_stack_elt_t *failure_stack_ptr;
2350
f3edfed6aa96 (re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2349
diff changeset
4403 #endif
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
4404
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 /* We fill all the registers internally, independent of what we
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4406 return, for use in backreferences. The number here includes
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
4407 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
4408 unsigned num_regs = bufp->re_nsub + 1;
515
69ba3b63e1d1 (gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents: 511
diff changeset
4409
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
4410 /* 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
4411 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
4412 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
4413 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
4414 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
4415 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
4416 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
4417 #ifdef MATCH_MAY_ALLOCATE /* otherwise, these are global. */
2349
5fa185a9956e * regex.c: Declare a new type `re_char' used throughout the code for the
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2345
diff changeset
4418 re_char **regstart, **regend;
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
4419 #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
4420
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 /* The following record the register info as found in the above
515
69ba3b63e1d1 (gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents: 511
diff changeset
4422 variables when we find a match better than any we've seen before.
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
4423 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
4424 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
4425 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
4426 #ifdef MATCH_MAY_ALLOCATE /* otherwise, these are global. */
2349
5fa185a9956e * regex.c: Declare a new type `re_char' used throughout the code for the
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2345
diff changeset
4427 re_char **best_regstart, **best_regend;
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
4428 #endif
515
69ba3b63e1d1 (gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents: 511
diff changeset
4429
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
4430 /* 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
4431 allocate space for that if we're not allocating space for anything
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4432 else (see below). Also, we never need info about register 0 for
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
4433 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
4434 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
4435 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
4436 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
4437 and need to test it, it's not garbage. */
2349
5fa185a9956e * regex.c: Declare a new type `re_char' used throughout the code for the
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2345
diff changeset
4438 re_char *match_end = NULL;
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
4439
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 #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
4441 /* Counts the total number of registers pushed. */
515
69ba3b63e1d1 (gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents: 511
diff changeset
4442 unsigned num_regs_pushed = 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
4443 #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
4444
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 DEBUG_PRINT1 ("\n\nEntering re_match_2.\n");
515
69ba3b63e1d1 (gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents: 511
diff changeset
4446
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
4447 INIT_FAIL_STACK ();
515
69ba3b63e1d1 (gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents: 511
diff changeset
4448
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
4449 #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
4450 /* 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
4451 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
4452 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
4453 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
4454 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
4455 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
4456 {
2349
5fa185a9956e * regex.c: Declare a new type `re_char' used throughout the code for the
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2345
diff changeset
4457 regstart = REGEX_TALLOC (num_regs, re_char *);
5fa185a9956e * regex.c: Declare a new type `re_char' used throughout the code for the
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2345
diff changeset
4458 regend = REGEX_TALLOC (num_regs, re_char *);
5fa185a9956e * regex.c: Declare a new type `re_char' used throughout the code for the
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2345
diff changeset
4459 best_regstart = REGEX_TALLOC (num_regs, re_char *);
5fa185a9956e * regex.c: Declare a new type `re_char' used throughout the code for the
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2345
diff changeset
4460 best_regend = REGEX_TALLOC (num_regs, re_char *);
2345
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
4461
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
4462 if (!(regstart && regend && best_regstart && best_regend))
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4463 {
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4464 FREE_VARIABLES ();
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4465 return -2;
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4466 }
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
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
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 /* We must initialize all our variables to NULL, so that
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4471 `FREE_VARIABLES' doesn't try to free them. */
2345
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
4472 regstart = regend = best_regstart = best_regend = NULL;
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
4473 }
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 #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
4475
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 /* 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
4477 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
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 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
4480 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
4481 }
515
69ba3b63e1d1 (gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents: 511
diff changeset
4482
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
4483 /* 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
4484 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
4485 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
4486 for (mcnt = 1; mcnt < num_regs; mcnt++)
2350
f3edfed6aa96 (re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2349
diff changeset
4487 regstart[mcnt] = regend[mcnt] = REG_UNSET_VALUE;
f3edfed6aa96 (re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2349
diff changeset
4488
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
4489 /* We move `string1' into `string2' if the latter's empty -- but not if
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4490 `string1' is null. */
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
4491 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
4492 {
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 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
4494 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
4495 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
4496 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
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 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
4499 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
4500
515
69ba3b63e1d1 (gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents: 511
diff changeset
4501 /* `p' scans through the pattern as `d' scans through the data.
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
4502 `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
4503 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
4504 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
4505 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
4506 equal `string2'. */
2438
c6d2b36bed68 (re_match_2_internal): Don't shorten the strings anymore,
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2375
diff changeset
4507 if (pos >= size1)
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
4508 {
2438
c6d2b36bed68 (re_match_2_internal): Don't shorten the strings anymore,
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2375
diff changeset
4509 /* Only match within string2. */
c6d2b36bed68 (re_match_2_internal): Don't shorten the strings anymore,
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2375
diff changeset
4510 d = string2 + pos - size1;
c6d2b36bed68 (re_match_2_internal): Don't shorten the strings anymore,
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2375
diff changeset
4511 dend = end_match_2 = string2 + stop - size1;
c6d2b36bed68 (re_match_2_internal): Don't shorten the strings anymore,
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2375
diff changeset
4512 end_match_1 = end1; /* Just to give it a value. */
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
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 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
4515 {
2551
b341325934ed (PREFETCH_NOLIMIT): New function.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2537
diff changeset
4516 if (stop < size1)
2438
c6d2b36bed68 (re_match_2_internal): Don't shorten the strings anymore,
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2375
diff changeset
4517 {
c6d2b36bed68 (re_match_2_internal): Don't shorten the strings anymore,
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2375
diff changeset
4518 /* Only match within string1. */
c6d2b36bed68 (re_match_2_internal): Don't shorten the strings anymore,
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2375
diff changeset
4519 end_match_1 = string1 + stop;
c6d2b36bed68 (re_match_2_internal): Don't shorten the strings anymore,
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2375
diff changeset
4520 /* BEWARE!
c6d2b36bed68 (re_match_2_internal): Don't shorten the strings anymore,
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2375
diff changeset
4521 When we reach end_match_1, PREFETCH normally switches to string2.
c6d2b36bed68 (re_match_2_internal): Don't shorten the strings anymore,
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2375
diff changeset
4522 But in the present case, this means that just doing a PREFETCH
c6d2b36bed68 (re_match_2_internal): Don't shorten the strings anymore,
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2375
diff changeset
4523 makes us jump from `stop' to `gap' within the string.
c6d2b36bed68 (re_match_2_internal): Don't shorten the strings anymore,
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2375
diff changeset
4524 What we really want here is for the search to stop as
c6d2b36bed68 (re_match_2_internal): Don't shorten the strings anymore,
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2375
diff changeset
4525 soon as we hit end_match_1. That's why we set end_match_2
c6d2b36bed68 (re_match_2_internal): Don't shorten the strings anymore,
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2375
diff changeset
4526 to end_match_1 (since PREFETCH fails as soon as we hit
c6d2b36bed68 (re_match_2_internal): Don't shorten the strings anymore,
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2375
diff changeset
4527 end_match_2). */
c6d2b36bed68 (re_match_2_internal): Don't shorten the strings anymore,
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2375
diff changeset
4528 end_match_2 = end_match_1;
c6d2b36bed68 (re_match_2_internal): Don't shorten the strings anymore,
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2375
diff changeset
4529 }
c6d2b36bed68 (re_match_2_internal): Don't shorten the strings anymore,
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2375
diff changeset
4530 else
2551
b341325934ed (PREFETCH_NOLIMIT): New function.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2537
diff changeset
4531 { /* It's important to use this code when stop == size so that
b341325934ed (PREFETCH_NOLIMIT): New function.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2537
diff changeset
4532 moving `d' from end1 to string2 will not prevent the d == dend
b341325934ed (PREFETCH_NOLIMIT): New function.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2537
diff changeset
4533 check from catching the end of string. */
2438
c6d2b36bed68 (re_match_2_internal): Don't shorten the strings anymore,
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2375
diff changeset
4534 end_match_1 = end1;
c6d2b36bed68 (re_match_2_internal): Don't shorten the strings anymore,
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2375
diff changeset
4535 end_match_2 = string2 + stop - size1;
c6d2b36bed68 (re_match_2_internal): Don't shorten the strings anymore,
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2375
diff changeset
4536 }
c6d2b36bed68 (re_match_2_internal): Don't shorten the strings anymore,
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2375
diff changeset
4537 d = string1 + pos;
c6d2b36bed68 (re_match_2_internal): Don't shorten the strings anymore,
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2375
diff changeset
4538 dend = end_match_1;
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
4539 }
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
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 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
4542 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
4543 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
4544 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
4545 DEBUG_PRINT1 ("'\n");
515
69ba3b63e1d1 (gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents: 511
diff changeset
4546
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4547 /* This loops over pattern commands. It exits by returning from the
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
4548 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
4549 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
4550 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
4551 {
2345
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
4552 DEBUG_PRINT2 ("\n%p: ", p);
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
4553
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 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
4555 { /* End of pattern means we might have succeeded. */
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4556 DEBUG_PRINT1 ("end of pattern ... ");
515
69ba3b63e1d1 (gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents: 511
diff changeset
4557
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
4558 /* If we haven't matched the entire string, and we want the
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4559 longest match, try backtracking. */
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4560 if (d != end_match_2)
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
4561 {
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 /* 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
4563 as the best previous match. */
515
69ba3b63e1d1 (gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents: 511
diff changeset
4564 boolean same_str_p = (FIRST_STRING_P (match_end)
2350
f3edfed6aa96 (re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2349
diff changeset
4565 == FIRST_STRING_P (d));
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
4566 /* 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
4567 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
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 /* AIX compiler got confused when this was combined
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4570 with the previous declaration. */
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
4571 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
4572 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
4573 else
2350
f3edfed6aa96 (re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2349
diff changeset
4574 best_match_p = !FIRST_STRING_P (d);
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
4575
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4576 DEBUG_PRINT1 ("backtracking.\n");
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4577
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4578 if (!FAIL_STACK_EMPTY ())
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4579 { /* More failure points to try. */
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4580
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4581 /* If exceeds best match so far, save it. */
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4582 if (!best_regs_set || best_match_p)
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4583 {
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4584 best_regs_set = true;
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4585 match_end = d;
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4586
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4587 DEBUG_PRINT1 ("\nSAVING match as best so far.\n");
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4588
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4589 for (mcnt = 1; mcnt < num_regs; mcnt++)
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4590 {
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4591 best_regstart[mcnt] = regstart[mcnt];
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4592 best_regend[mcnt] = regend[mcnt];
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4593 }
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4594 }
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4595 goto fail;
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4596 }
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4597
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4598 /* If no failure points, don't restore garbage. And if
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4599 last match is real best match, don't restore second
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4600 best one. */
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4601 else if (best_regs_set && !best_match_p)
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4602 {
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4603 restore_best_regs:
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4604 /* Restore best match. It may happen that `dend ==
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4605 end_match_1' while the restored d is in string2.
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4606 For example, the pattern `x.*y.*z' against the
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4607 strings `x-' and `y-z-', if the two strings are
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4608 not consecutive in memory. */
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4609 DEBUG_PRINT1 ("Restoring best registers.\n");
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4610
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4611 d = match_end;
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4612 dend = ((d >= string1 && d <= end1)
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4613 ? end_match_1 : end_match_2);
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
4614
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 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
4616 {
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 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
4618 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
4619 }
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4620 }
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4621 } /* d != end_match_2 */
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
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 succeed_label:
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4624 DEBUG_PRINT1 ("Accepting match.\n");
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4625
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4626 /* If caller wants register contents data back, do it. */
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4627 if (regs && !bufp->no_sub)
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
4628 {
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4629 /* Have the register data arrays been allocated? */
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4630 if (bufp->regs_allocated == REGS_UNALLOCATED)
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4631 { /* No. So allocate them with malloc. We need one
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4632 extra element beyond `num_regs' for the `-1' marker
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4633 GNU code uses. */
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4634 regs->num_regs = MAX (RE_NREGS, num_regs + 1);
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4635 regs->start = TALLOC (regs->num_regs, regoff_t);
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4636 regs->end = TALLOC (regs->num_regs, regoff_t);
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4637 if (regs->start == NULL || regs->end == NULL)
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
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 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
4640 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
4641 }
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4642 bufp->regs_allocated = REGS_REALLOCATE;
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4643 }
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4644 else if (bufp->regs_allocated == REGS_REALLOCATE)
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4645 { /* Yes. If we need more elements than were already
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4646 allocated, reallocate them. If we need fewer, just
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4647 leave it alone. */
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4648 if (regs->num_regs < num_regs + 1)
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4649 {
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4650 regs->num_regs = num_regs + 1;
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4651 RETALLOC (regs->start, regs->num_regs, regoff_t);
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4652 RETALLOC (regs->end, regs->num_regs, regoff_t);
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4653 if (regs->start == NULL || regs->end == NULL)
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
4654 {
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 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
4656 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
4657 }
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4658 }
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4659 }
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4660 else
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
4661 {
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 /* These braces fend off a "empty body in an else-statement"
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4663 warning under GCC when assert expands to nothing. */
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
4664 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
4665 }
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
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4667 /* Convert the pointer data in `regstart' and `regend' to
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4668 indices. Register zero has to be set differently,
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4669 since we haven't kept track of any info for it. */
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4670 if (regs->num_regs > 0)
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4671 {
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4672 regs->start[0] = pos;
2350
f3edfed6aa96 (re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2349
diff changeset
4673 regs->end[0] = POINTER_TO_OFFSET (d);
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4674 }
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4675
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4676 /* Go through the first `min (num_regs, regs->num_regs)'
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4677 registers, since that is all we initialized. */
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
4678 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
4679 {
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4680 if (REG_UNSET (regstart[mcnt]) || REG_UNSET (regend[mcnt]))
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4681 regs->start[mcnt] = regs->end[mcnt] = -1;
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4682 else
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4683 {
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
4684 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
4685 = (regoff_t) POINTER_TO_OFFSET (regstart[mcnt]);
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4686 regs->end[mcnt]
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
4687 = (regoff_t) POINTER_TO_OFFSET (regend[mcnt]);
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4688 }
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
4689 }
515
69ba3b63e1d1 (gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents: 511
diff changeset
4690
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4691 /* If the regs structure we return has more elements than
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4692 were in the pattern, set the extra elements to -1. If
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4693 we (re)allocated the registers, this is the case,
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4694 because we always allocate enough to have at least one
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4695 -1 at the end. */
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4696 for (mcnt = num_regs; mcnt < regs->num_regs; mcnt++)
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4697 regs->start[mcnt] = regs->end[mcnt] = -1;
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
4698 } /* 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
4699
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4700 DEBUG_PRINT4 ("%u failure points pushed, %u popped (%u remain).\n",
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4701 nfailure_points_pushed, nfailure_points_popped,
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4702 nfailure_points_pushed - nfailure_points_popped);
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4703 DEBUG_PRINT2 ("%u registers pushed.\n", num_regs_pushed);
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4704
2350
f3edfed6aa96 (re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2349
diff changeset
4705 mcnt = POINTER_TO_OFFSET (d) - pos;
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
4706
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4707 DEBUG_PRINT2 ("Returning %d from re_match_2.\n", mcnt);
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4708
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4709 FREE_VARIABLES ();
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4710 return mcnt;
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4711 }
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4712
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4713 /* Otherwise match next pattern command. */
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
4714 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
4715 {
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4716 /* Ignore these. Used to ignore the n of succeed_n's which
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4717 currently have n == 0. */
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4718 case no_op:
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4719 DEBUG_PRINT1 ("EXECUTING no_op.\n");
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4720 break;
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
4721
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 case succeed:
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4723 DEBUG_PRINT1 ("EXECUTING succeed.\n");
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
4724 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
4725
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4726 /* Match the next n pattern characters exactly. The following
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4727 byte in the pattern defines n, and the n bytes after that
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4728 are the characters to match. */
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
4729 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
4730 mcnt = *p++;
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4731 DEBUG_PRINT2 ("EXECUTING exactn %d.\n", mcnt);
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4732
2350
f3edfed6aa96 (re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2349
diff changeset
4733 /* Remember the start point to rollback upon failure. */
f3edfed6aa96 (re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2349
diff changeset
4734 dfail = d;
f3edfed6aa96 (re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2349
diff changeset
4735
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4736 /* This is written out as an if-else so we don't waste time
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4737 testing `translate' inside the loop. */
1328
0aa10b723959 Use RE_TRANSLATE_P to check whether translation is
Andreas Schwab <schwab@suse.de>
parents: 1326
diff changeset
4738 if (RE_TRANSLATE_P (translate))
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
4739 {
1296
7b938cc81ae2 (compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents: 1218
diff changeset
4740 if (multibyte)
7b938cc81ae2 (compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents: 1218
diff changeset
4741 do
7b938cc81ae2 (compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents: 1218
diff changeset
4742 {
7b938cc81ae2 (compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents: 1218
diff changeset
4743 int pat_charlen, buf_charlen;
1312
a9a56c9deb21 (re_match_2_internal): Declare buf_ch unsigned int.
Richard Stallman <rms@gnu.org>
parents: 1297
diff changeset
4744 unsigned int pat_ch, buf_ch;
1296
7b938cc81ae2 (compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents: 1218
diff changeset
4745
7b938cc81ae2 (compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents: 1218
diff changeset
4746 PREFETCH ();
7b938cc81ae2 (compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents: 1218
diff changeset
4747 pat_ch = STRING_CHAR_AND_LENGTH (p, pend - p, pat_charlen);
7b938cc81ae2 (compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents: 1218
diff changeset
4748 buf_ch = STRING_CHAR_AND_LENGTH (d, dend - d, buf_charlen);
7b938cc81ae2 (compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents: 1218
diff changeset
4749
7b938cc81ae2 (compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents: 1218
diff changeset
4750 if (RE_TRANSLATE (translate, buf_ch)
7b938cc81ae2 (compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents: 1218
diff changeset
4751 != pat_ch)
2350
f3edfed6aa96 (re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2349
diff changeset
4752 {
f3edfed6aa96 (re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2349
diff changeset
4753 d = dfail;
f3edfed6aa96 (re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2349
diff changeset
4754 goto fail;
f3edfed6aa96 (re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2349
diff changeset
4755 }
1296
7b938cc81ae2 (compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents: 1218
diff changeset
4756
7b938cc81ae2 (compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents: 1218
diff changeset
4757 p += pat_charlen;
7b938cc81ae2 (compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents: 1218
diff changeset
4758 d += buf_charlen;
7b938cc81ae2 (compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents: 1218
diff changeset
4759 mcnt -= pat_charlen;
7b938cc81ae2 (compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents: 1218
diff changeset
4760 }
7b938cc81ae2 (compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents: 1218
diff changeset
4761 while (mcnt > 0);
7b938cc81ae2 (compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents: 1218
diff changeset
4762 else
7b938cc81ae2 (compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents: 1218
diff changeset
4763 do
7b938cc81ae2 (compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents: 1218
diff changeset
4764 {
7b938cc81ae2 (compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents: 1218
diff changeset
4765 PREFETCH ();
2349
5fa185a9956e * regex.c: Declare a new type `re_char' used throughout the code for the
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2345
diff changeset
4766 if (RE_TRANSLATE (translate, *d) != *p++)
2350
f3edfed6aa96 (re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2349
diff changeset
4767 {
f3edfed6aa96 (re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2349
diff changeset
4768 d = dfail;
f3edfed6aa96 (re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2349
diff changeset
4769 goto fail;
f3edfed6aa96 (re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2349
diff changeset
4770 }
1381
24423cbaf6a9 (re_search_2): Don't use ++ inside RE_TRANSLATE.
Richard Stallman <rms@gnu.org>
parents: 1342
diff changeset
4771 d++;
1296
7b938cc81ae2 (compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents: 1218
diff changeset
4772 }
7b938cc81ae2 (compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents: 1218
diff changeset
4773 while (--mcnt);
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
4774 }
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 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
4776 {
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 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
4778 {
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 PREFETCH ();
2350
f3edfed6aa96 (re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2349
diff changeset
4780 if (*d++ != *p++)
f3edfed6aa96 (re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2349
diff changeset
4781 {
f3edfed6aa96 (re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2349
diff changeset
4782 d = dfail;
f3edfed6aa96 (re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2349
diff changeset
4783 goto fail;
f3edfed6aa96 (re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2349
diff changeset
4784 }
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
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 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
4787 }
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4788 break;
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4789
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4790
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4791 /* Match any character except possibly a newline or a null. */
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
4792 case anychar:
1296
7b938cc81ae2 (compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents: 1218
diff changeset
4793 {
7b938cc81ae2 (compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents: 1218
diff changeset
4794 int buf_charlen;
1312
a9a56c9deb21 (re_match_2_internal): Declare buf_ch unsigned int.
Richard Stallman <rms@gnu.org>
parents: 1297
diff changeset
4795 unsigned int buf_ch;
1296
7b938cc81ae2 (compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents: 1218
diff changeset
4796
7b938cc81ae2 (compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents: 1218
diff changeset
4797 DEBUG_PRINT1 ("EXECUTING anychar.\n");
7b938cc81ae2 (compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents: 1218
diff changeset
4798
7b938cc81ae2 (compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents: 1218
diff changeset
4799 PREFETCH ();
2375
f25b865f900c * regex.c (PTR_TO_OFFSET) [!emacs]: Remove.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2372
diff changeset
4800 buf_ch = RE_STRING_CHAR_AND_LENGTH (d, dend - d, buf_charlen);
1296
7b938cc81ae2 (compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents: 1218
diff changeset
4801 buf_ch = TRANSLATE (buf_ch);
7b938cc81ae2 (compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents: 1218
diff changeset
4802
7b938cc81ae2 (compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents: 1218
diff changeset
4803 if ((!(bufp->syntax & RE_DOT_NEWLINE)
7b938cc81ae2 (compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents: 1218
diff changeset
4804 && buf_ch == '\n')
7b938cc81ae2 (compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents: 1218
diff changeset
4805 || ((bufp->syntax & RE_DOT_NOT_NULL)
7b938cc81ae2 (compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents: 1218
diff changeset
4806 && buf_ch == '\000'))
7b938cc81ae2 (compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents: 1218
diff changeset
4807 goto fail;
7b938cc81ae2 (compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents: 1218
diff changeset
4808
7b938cc81ae2 (compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents: 1218
diff changeset
4809 DEBUG_PRINT2 (" Matched `%d'.\n", *d);
7b938cc81ae2 (compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents: 1218
diff changeset
4810 d += buf_charlen;
7b938cc81ae2 (compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents: 1218
diff changeset
4811 }
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
4812 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
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
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 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
4816 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
4817 {
939
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
4818 register unsigned int c;
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
4819 boolean not = (re_opcode_t) *(p - 1) == charset_not;
939
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
4820 int len;
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
4821
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
4822 /* Start of actual range_table, or end of bitmap if there is no
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
4823 range table. */
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
4824 unsigned char *range_table;
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
4825
1933
5ffa81ab1988 [emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents: 1660
diff changeset
4826 /* Nonzero if there is a range table. */
939
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
4827 int range_table_exists;
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
4828
1933
5ffa81ab1988 [emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents: 1660
diff changeset
4829 /* Number of ranges of range table. This is not included
5ffa81ab1988 [emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents: 1660
diff changeset
4830 in the initial byte-length of the command. */
5ffa81ab1988 [emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents: 1660
diff changeset
4831 int count = 0;
939
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
4832
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4833 DEBUG_PRINT2 ("EXECUTING charset%s.\n", not ? "_not" : "");
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
4834
939
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
4835 range_table_exists = CHARSET_RANGE_TABLE_EXISTS_P (&p[-1]);
1933
5ffa81ab1988 [emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents: 1660
diff changeset
4836
939
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
4837 if (range_table_exists)
1933
5ffa81ab1988 [emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents: 1660
diff changeset
4838 {
5ffa81ab1988 [emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents: 1660
diff changeset
4839 range_table = CHARSET_RANGE_TABLE (&p[-1]); /* Past the bitmap. */
5ffa81ab1988 [emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents: 1660
diff changeset
4840 EXTRACT_NUMBER_AND_INCR (count, range_table);
5ffa81ab1988 [emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents: 1660
diff changeset
4841 }
939
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
4842
2375
f25b865f900c * regex.c (PTR_TO_OFFSET) [!emacs]: Remove.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2372
diff changeset
4843 PREFETCH ();
f25b865f900c * regex.c (PTR_TO_OFFSET) [!emacs]: Remove.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2372
diff changeset
4844 c = RE_STRING_CHAR_AND_LENGTH (d, dend - d, len);
f25b865f900c * regex.c (PTR_TO_OFFSET) [!emacs]: Remove.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2372
diff changeset
4845 c = TRANSLATE (c); /* The character to match. */
939
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
4846
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
4847 if (SINGLE_BYTE_CHAR_P (c))
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
4848 { /* Lookup bitmap. */
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
4849 /* Cast to `unsigned' instead of `unsigned char' in
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
4850 case the bit list is a full 32 bytes long. */
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
4851 if (c < (unsigned) (CHARSET_BITMAP_SIZE (&p[-1]) * BYTEWIDTH)
1933
5ffa81ab1988 [emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents: 1660
diff changeset
4852 && p[1 + c / BYTEWIDTH] & (1 << (c % BYTEWIDTH)))
5ffa81ab1988 [emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents: 1660
diff changeset
4853 not = !not;
939
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
4854 }
1933
5ffa81ab1988 [emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents: 1660
diff changeset
4855 #ifdef emacs
939
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
4856 else if (range_table_exists)
1933
5ffa81ab1988 [emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents: 1660
diff changeset
4857 {
5ffa81ab1988 [emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents: 1660
diff changeset
4858 int class_bits = CHARSET_RANGE_TABLE_BITS (&p[-1]);
5ffa81ab1988 [emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents: 1660
diff changeset
4859
5ffa81ab1988 [emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents: 1660
diff changeset
4860 if ( (class_bits & BIT_ALNUM && ISALNUM (c))
5ffa81ab1988 [emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents: 1660
diff changeset
4861 | (class_bits & BIT_ALPHA && ISALPHA (c))
1965
058a9ce57dd7 1999-09-04 Richard Stallman <rms@gnu.org>
Dave Love <fx@gnu.org>
parents: 1933
diff changeset
4862 | (class_bits & BIT_ASCII && IS_REAL_ASCII (c))
1933
5ffa81ab1988 [emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents: 1660
diff changeset
4863 | (class_bits & BIT_GRAPH && ISGRAPH (c))
5ffa81ab1988 [emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents: 1660
diff changeset
4864 | (class_bits & BIT_LOWER && ISLOWER (c))
1965
058a9ce57dd7 1999-09-04 Richard Stallman <rms@gnu.org>
Dave Love <fx@gnu.org>
parents: 1933
diff changeset
4865 | (class_bits & BIT_MULTIBYTE && !ISUNIBYTE (c))
058a9ce57dd7 1999-09-04 Richard Stallman <rms@gnu.org>
Dave Love <fx@gnu.org>
parents: 1933
diff changeset
4866 | (class_bits & BIT_NONASCII && !IS_REAL_ASCII (c))
1933
5ffa81ab1988 [emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents: 1660
diff changeset
4867 | (class_bits & BIT_PRINT && ISPRINT (c))
5ffa81ab1988 [emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents: 1660
diff changeset
4868 | (class_bits & BIT_PUNCT && ISPUNCT (c))
5ffa81ab1988 [emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents: 1660
diff changeset
4869 | (class_bits & BIT_SPACE && ISSPACE (c))
1965
058a9ce57dd7 1999-09-04 Richard Stallman <rms@gnu.org>
Dave Love <fx@gnu.org>
parents: 1933
diff changeset
4870 | (class_bits & BIT_UNIBYTE && ISUNIBYTE (c))
1933
5ffa81ab1988 [emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents: 1660
diff changeset
4871 | (class_bits & BIT_UPPER && ISUPPER (c))
5ffa81ab1988 [emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents: 1660
diff changeset
4872 | (class_bits & BIT_WORD && ISWORD (c)))
5ffa81ab1988 [emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents: 1660
diff changeset
4873 not = !not;
5ffa81ab1988 [emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents: 1660
diff changeset
4874 else
5ffa81ab1988 [emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents: 1660
diff changeset
4875 CHARSET_LOOKUP_RANGE_TABLE_RAW (not, c, range_table, count);
5ffa81ab1988 [emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents: 1660
diff changeset
4876 }
5ffa81ab1988 [emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents: 1660
diff changeset
4877 #endif /* emacs */
5ffa81ab1988 [emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents: 1660
diff changeset
4878
5ffa81ab1988 [emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents: 1660
diff changeset
4879 if (range_table_exists)
5ffa81ab1988 [emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents: 1660
diff changeset
4880 p = CHARSET_RANGE_TABLE_END (range_table, count);
5ffa81ab1988 [emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents: 1660
diff changeset
4881 else
5ffa81ab1988 [emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents: 1660
diff changeset
4882 p += CHARSET_BITMAP_SIZE (&p[-1]) + 1;
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
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 if (!not) goto fail;
515
69ba3b63e1d1 (gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents: 511
diff changeset
4885
939
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
4886 d += len;
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
4887 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
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
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4891 /* The beginning of a group is represented by start_memory.
2345
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
4892 The argument is the register number. The text
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4893 matched within the group is recorded (in the internal
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4894 registers data structure) under the register number. */
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4895 case start_memory:
2345
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
4896 DEBUG_PRINT2 ("EXECUTING start_memory %d:\n", *p);
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
4897
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
4898 /* In case we need to undo this operation (via backtracking). */
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
4899 PUSH_FAILURE_REG ((unsigned int)*p);
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
4900
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4901 regstart[*p] = d;
2345
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
4902 regend[*p] = REG_UNSET_VALUE; /* probably unnecessary. -sm */
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
4903 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
4904
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4905 /* Move past the register number and inner group count. */
2345
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
4906 p += 1;
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4907 break;
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4908
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4909
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4910 /* The stop_memory opcode represents the end of a group. Its
2345
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
4911 argument is the same as start_memory's: the register number. */
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
4912 case stop_memory:
2345
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
4913 DEBUG_PRINT2 ("EXECUTING stop_memory %d:\n", *p);
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
4914
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
4915 assert (!REG_UNSET (regstart[*p]));
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
4916 /* Strictly speaking, there should be code such as:
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
4917
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
4918 assert (REG_UNSET (regend[*p]));
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
4919 PUSH_FAILURE_REGSTOP ((unsigned int)*p);
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
4920
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
4921 But the only info to be pushed is regend[*p] and it is known to
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
4922 be UNSET, so there really isn't anything to push.
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
4923 Not pushing anything, on the other hand deprives us from the
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
4924 guarantee that regend[*p] is UNSET since undoing this operation
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
4925 will not reset its value properly. This is not important since
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
4926 the value will only be read on the next start_memory or at
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
4927 the very end and both events can only happen if this stop_memory
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
4928 is *not* undone. */
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
4929
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4930 regend[*p] = d;
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
4931 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
4932
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4933 /* Move past the register number and the inner group count. */
2345
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
4934 p += 1;
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4935 break;
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
4936
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 /* \<digit> has been turned into a `duplicate' command which is
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4939 followed by the numeric value of <digit> as the register number. */
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4940 case duplicate:
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
4941 {
2349
5fa185a9956e * regex.c: Declare a new type `re_char' used throughout the code for the
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2345
diff changeset
4942 register re_char *d2, *dend2;
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4943 int regno = *p++; /* Get which register to match against. */
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
4944 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
4945
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4946 /* Can't back reference a group which we've never matched. */
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4947 if (REG_UNSET (regstart[regno]) || REG_UNSET (regend[regno]))
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4948 goto fail;
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4949
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4950 /* Where in input to try to start matching. */
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4951 d2 = regstart[regno];
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4952
2350
f3edfed6aa96 (re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2349
diff changeset
4953 /* Remember the start point to rollback upon failure. */
f3edfed6aa96 (re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2349
diff changeset
4954 dfail = d;
f3edfed6aa96 (re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2349
diff changeset
4955
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4956 /* Where to stop matching; if both the place to start and
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4957 the place to stop matching are in the same string, then
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4958 set to the place to stop, otherwise, for now have to use
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4959 the end of the first string. */
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4960
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4961 dend2 = ((FIRST_STRING_P (regstart[regno])
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
4962 == 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
4963 ? 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
4964 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
4965 {
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 /* If necessary, advance to next segment in register
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4967 contents. */
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
4968 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
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 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
4971 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
4972
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4973 /* End of string1 => advance to string2. */
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4974 d2 = string2;
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4975 dend2 = regend[regno];
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
4976 }
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 /* 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
4978 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
4979
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 /* 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
4981 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
4982
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 /* 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
4984 mcnt = dend - d;
515
69ba3b63e1d1 (gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents: 511
diff changeset
4985
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
4986 /* Want how many consecutive characters we can match in
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4987 one shot, so, if necessary, adjust the count. */
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4988 if (mcnt > dend2 - d2)
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
4989 mcnt = dend2 - d2;
515
69ba3b63e1d1 (gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents: 511
diff changeset
4990
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
4991 /* Compare that many; failure if mismatch, else move
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4992 past them. */
1328
0aa10b723959 Use RE_TRANSLATE_P to check whether translation is
Andreas Schwab <schwab@suse.de>
parents: 1326
diff changeset
4993 if (RE_TRANSLATE_P (translate)
2375
f25b865f900c * regex.c (PTR_TO_OFFSET) [!emacs]: Remove.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2372
diff changeset
4994 ? bcmp_translate (d, d2, mcnt, translate, multibyte)
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
4995 : bcmp (d, d2, mcnt))
2350
f3edfed6aa96 (re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2349
diff changeset
4996 {
f3edfed6aa96 (re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2349
diff changeset
4997 d = dfail;
f3edfed6aa96 (re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2349
diff changeset
4998 goto fail;
f3edfed6aa96 (re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2349
diff changeset
4999 }
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
5000 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
5001 }
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 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
5004
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
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
5006 /* begline matches the empty string at the beginning of the string
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
5007 (unless `not_bol' is set in `bufp'), and, if
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
5008 `newline_anchor' is set, after newlines. */
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
5009 case begline:
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
5010 DEBUG_PRINT1 ("EXECUTING begline.\n");
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
5011
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
5012 if (AT_STRINGS_BEG (d))
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
5013 {
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
5014 if (!bufp->not_bol) break;
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
5015 }
2438
c6d2b36bed68 (re_match_2_internal): Don't shorten the strings anymore,
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2375
diff changeset
5016 else
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
5017 {
2438
c6d2b36bed68 (re_match_2_internal): Don't shorten the strings anymore,
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2375
diff changeset
5018 unsigned char c;
c6d2b36bed68 (re_match_2_internal): Don't shorten the strings anymore,
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2375
diff changeset
5019 GET_CHAR_BEFORE_2 (c, d, string1, end1, string2, end2);
c6d2b36bed68 (re_match_2_internal): Don't shorten the strings anymore,
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2375
diff changeset
5020 if (c == '\n' && bufp->newline_anchor)
c6d2b36bed68 (re_match_2_internal): Don't shorten the strings anymore,
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2375
diff changeset
5021 break;
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
5022 }
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
5023 /* In all other cases, we fail. */
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
5024 goto fail;
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
5025
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
5026
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
5027 /* endline is the dual of begline. */
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
5028 case endline:
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
5029 DEBUG_PRINT1 ("EXECUTING endline.\n");
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
5030
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
5031 if (AT_STRINGS_END (d))
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
5032 {
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
5033 if (!bufp->not_eol) break;
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
5034 }
2551
b341325934ed (PREFETCH_NOLIMIT): New function.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2537
diff changeset
5035 else
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
5036 {
2551
b341325934ed (PREFETCH_NOLIMIT): New function.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2537
diff changeset
5037 PREFETCH_NOLIMIT ();
b341325934ed (PREFETCH_NOLIMIT): New function.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2537
diff changeset
5038 if (*d == '\n' && bufp->newline_anchor)
b341325934ed (PREFETCH_NOLIMIT): New function.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2537
diff changeset
5039 break;
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
5040 }
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
5041 goto fail;
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
5042
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 /* Match at the very beginning of the data. */
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
5045 case begbuf:
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
5046 DEBUG_PRINT1 ("EXECUTING begbuf.\n");
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
5047 if (AT_STRINGS_BEG (d))
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
5048 break;
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
5049 goto fail;
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
5050
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
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 /* Match at the very end of the data. */
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
5053 case endbuf:
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
5054 DEBUG_PRINT1 ("EXECUTING endbuf.\n");
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
5055 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
5056 break;
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
5057 goto fail;
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
5058
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
5059
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
5060 /* on_failure_keep_string_jump is used to optimize `.*\n'. It
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
5061 pushes NULL as the value for the string on the stack. Then
2345
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
5062 `POP_FAILURE_POINT' will keep the current value for the
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
5063 string, instead of restoring it. To see why, consider
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
5064 matching `foo\nbar' against `.*\n'. The .* matches the foo;
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
5065 then the . fails against the \n. But the next thing we want
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
5066 to do is match the \n against the \n; if we restored the
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
5067 string value, we would be back at the foo.
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
5068
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
5069 Because this is used only in specific cases, we don't need to
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
5070 check all the things that `on_failure_jump' does, to make
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
5071 sure the right things get saved on the stack. Hence we don't
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
5072 share its code. The only reason to push anything on the
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
5073 stack at all is that otherwise we would have to change
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
5074 `anychar's code to do something besides goto fail in this
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
5075 case; that seems worse than this. */
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
5076 case on_failure_keep_string_jump:
2345
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
5077 EXTRACT_NUMBER_AND_INCR (mcnt, p);
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
5078 DEBUG_PRINT3 ("EXECUTING on_failure_keep_string_jump %d (to %p):\n",
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
5079 mcnt, p + mcnt);
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
5080
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
5081 PUSH_FAILURE_POINT (p - 3, NULL);
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
5082 break;
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
5083
2370
d8ded9c0e20c (enum re_opcode_t): New opcode on_failure_jump_nastyloop.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2359
diff changeset
5084 /* A nasty loop is introduced by the non-greedy *? and +?.
d8ded9c0e20c (enum re_opcode_t): New opcode on_failure_jump_nastyloop.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2359
diff changeset
5085 With such loops, the stack only ever contains one failure point
d8ded9c0e20c (enum re_opcode_t): New opcode on_failure_jump_nastyloop.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2359
diff changeset
5086 at a time, so that a plain on_failure_jump_loop kind of
d8ded9c0e20c (enum re_opcode_t): New opcode on_failure_jump_nastyloop.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2359
diff changeset
5087 cycle detection cannot work. Worse yet, such a detection
d8ded9c0e20c (enum re_opcode_t): New opcode on_failure_jump_nastyloop.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2359
diff changeset
5088 can not only fail to detect a cycle, but it can also wrongly
d8ded9c0e20c (enum re_opcode_t): New opcode on_failure_jump_nastyloop.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2359
diff changeset
5089 detect a cycle (between different instantiations of the same
d8ded9c0e20c (enum re_opcode_t): New opcode on_failure_jump_nastyloop.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2359
diff changeset
5090 loop.
d8ded9c0e20c (enum re_opcode_t): New opcode on_failure_jump_nastyloop.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2359
diff changeset
5091 So the method used for those nasty loops is a little different:
d8ded9c0e20c (enum re_opcode_t): New opcode on_failure_jump_nastyloop.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2359
diff changeset
5092 We use a special cycle-detection-stack-frame which is pushed
d8ded9c0e20c (enum re_opcode_t): New opcode on_failure_jump_nastyloop.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2359
diff changeset
5093 when the on_failure_jump_nastyloop failure-point is *popped*.
d8ded9c0e20c (enum re_opcode_t): New opcode on_failure_jump_nastyloop.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2359
diff changeset
5094 This special frame thus marks the beginning of one iteration
d8ded9c0e20c (enum re_opcode_t): New opcode on_failure_jump_nastyloop.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2359
diff changeset
5095 through the loop and we can hence easily check right here
d8ded9c0e20c (enum re_opcode_t): New opcode on_failure_jump_nastyloop.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2359
diff changeset
5096 whether something matched between the beginning and the end of
d8ded9c0e20c (enum re_opcode_t): New opcode on_failure_jump_nastyloop.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2359
diff changeset
5097 the loop. */
d8ded9c0e20c (enum re_opcode_t): New opcode on_failure_jump_nastyloop.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2359
diff changeset
5098 case on_failure_jump_nastyloop:
d8ded9c0e20c (enum re_opcode_t): New opcode on_failure_jump_nastyloop.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2359
diff changeset
5099 EXTRACT_NUMBER_AND_INCR (mcnt, p);
d8ded9c0e20c (enum re_opcode_t): New opcode on_failure_jump_nastyloop.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2359
diff changeset
5100 DEBUG_PRINT3 ("EXECUTING on_failure_jump_nastyloop %d (to %p):\n",
d8ded9c0e20c (enum re_opcode_t): New opcode on_failure_jump_nastyloop.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2359
diff changeset
5101 mcnt, p + mcnt);
d8ded9c0e20c (enum re_opcode_t): New opcode on_failure_jump_nastyloop.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2359
diff changeset
5102
d8ded9c0e20c (enum re_opcode_t): New opcode on_failure_jump_nastyloop.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2359
diff changeset
5103 assert ((re_opcode_t)p[-4] == no_op);
d8ded9c0e20c (enum re_opcode_t): New opcode on_failure_jump_nastyloop.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2359
diff changeset
5104 CHECK_INFINITE_LOOP (p - 4, d);
d8ded9c0e20c (enum re_opcode_t): New opcode on_failure_jump_nastyloop.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2359
diff changeset
5105 PUSH_FAILURE_POINT (p - 3, d);
d8ded9c0e20c (enum re_opcode_t): New opcode on_failure_jump_nastyloop.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2359
diff changeset
5106 break;
d8ded9c0e20c (enum re_opcode_t): New opcode on_failure_jump_nastyloop.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2359
diff changeset
5107
2355
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
5108
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
5109 /* Simple loop detecting on_failure_jump: just check on the
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
5110 failure stack if the same spot was already hit earlier. */
2345
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
5111 case on_failure_jump_loop:
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
5112 on_failure:
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
5113 EXTRACT_NUMBER_AND_INCR (mcnt, p);
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
5114 DEBUG_PRINT3 ("EXECUTING on_failure_jump_loop %d (to %p):\n",
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
5115 mcnt, p + mcnt);
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
5116
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
5117 CHECK_INFINITE_LOOP (p - 3, d);
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
5118 PUSH_FAILURE_POINT (p - 3, d);
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
5119 break;
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
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 /* Uses of on_failure_jump:
515
69ba3b63e1d1 (gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents: 511
diff changeset
5123
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
5124 Each alternative starts with an on_failure_jump that points
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
5125 to the beginning of the next alternative. Each alternative
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
5126 except the last ends with a jump that in effect jumps past
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
5127 the rest of the alternatives. (They really jump to the
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
5128 ending jump of the following alternative, because tensioning
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
5129 these jumps is a hassle.)
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
5130
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
5131 Repeats start with an on_failure_jump that points past both
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
5132 the repetition text and either the following jump or
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
5133 pop_failure_jump back to this on_failure_jump. */
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
5134 case on_failure_jump:
1660
ef1f39a7e7c3 (re_match_2_internal) [WINDOWSNT & emacs]: Insert QUIT at various places.
Richard Stallman <rms@gnu.org>
parents: 1583
diff changeset
5135 QUIT;
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
5136 EXTRACT_NUMBER_AND_INCR (mcnt, p);
2345
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
5137 DEBUG_PRINT3 ("EXECUTING on_failure_jump %d (to %p):\n",
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
5138 mcnt, p + mcnt);
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
5139
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
5140 PUSH_FAILURE_POINT (p -3, d);
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
5141 break;
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
5142
2355
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
5143 /* This operation is used for greedy *.
2345
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
5144 Compare the beginning of the repeat with what in the
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
5145 pattern follows its end. If we can establish that there
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
5146 is nothing that they would both match, i.e., that we
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
5147 would have to backtrack because of (as in, e.g., `a*a')
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
5148 then we can use a non-backtracking loop based on
2355
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
5149 on_failure_keep_string_jump instead of on_failure_jump. */
2345
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
5150 case on_failure_jump_smart:
1660
ef1f39a7e7c3 (re_match_2_internal) [WINDOWSNT & emacs]: Insert QUIT at various places.
Richard Stallman <rms@gnu.org>
parents: 1583
diff changeset
5151 QUIT;
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
5152 EXTRACT_NUMBER_AND_INCR (mcnt, p);
2345
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
5153 DEBUG_PRINT3 ("EXECUTING on_failure_jump_smart %d (to %p).\n",
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
5154 mcnt, p + mcnt);
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
5155 {
2345
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
5156 unsigned char *p1 = p; /* Next operation. */
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
5157 unsigned char *p2 = p + mcnt; /* Destination of the jump. */
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
5158
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
5159 p -= 3; /* Reset so that we will re-execute the
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
5160 instruction once it's been changed. */
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
5161
2355
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
5162 EXTRACT_NUMBER (mcnt, p2 - 2);
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
5163
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
5164 /* Ensure this is a indeed the trivial kind of loop
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
5165 we are expecting. */
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
5166 assert (skip_one_char (p1) == p2 - 3);
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
5167 assert ((re_opcode_t) p2[-3] == jump && p2 + mcnt == p);
2350
f3edfed6aa96 (re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2349
diff changeset
5168 DEBUG_STATEMENT (debug += 2);
2345
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
5169 if (mutually_exclusive_p (bufp, p1, p2))
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
5170 {
2345
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
5171 /* Use a fast `on_failure_keep_string_jump' loop. */
2355
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
5172 DEBUG_PRINT1 (" smart exclusive => fast loop.\n");
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
5173 *p = (unsigned char) on_failure_keep_string_jump;
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
5174 STORE_NUMBER (p2 - 2, mcnt + 3);
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
5175 }
2345
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
5176 else
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
5177 {
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
5178 /* Default to a safe `on_failure_jump' loop. */
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
5179 DEBUG_PRINT1 (" smart default => slow loop.\n");
2355
0786b40fdf1c (RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2350
diff changeset
5180 *p = (unsigned char) on_failure_jump;
2345
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
5181 }
2350
f3edfed6aa96 (re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2349
diff changeset
5182 DEBUG_STATEMENT (debug -= 2);
939
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
5183 }
2345
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
5184 break;
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
5185
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
5186 /* Unconditionally jump (without popping any failure points). */
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
5187 case jump:
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
5188 unconditional_jump:
1660
ef1f39a7e7c3 (re_match_2_internal) [WINDOWSNT & emacs]: Insert QUIT at various places.
Richard Stallman <rms@gnu.org>
parents: 1583
diff changeset
5189 QUIT;
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
5190 EXTRACT_NUMBER_AND_INCR (mcnt, p); /* Get the amount to jump. */
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
5191 DEBUG_PRINT2 ("EXECUTING jump %d ", mcnt);
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
5192 p += mcnt; /* Do the jump. */
2345
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
5193 DEBUG_PRINT2 ("(to %p).\n", p);
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
5194 break;
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
5195
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
5196
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
5197 /* Have to succeed matching what follows at least n times.
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
5198 After that, handle like `on_failure_jump'. */
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
5199 case succeed_n:
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
5200 EXTRACT_NUMBER (mcnt, p + 2);
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
5201 DEBUG_PRINT2 ("EXECUTING succeed_n %d.\n", mcnt);
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
5202
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
5203 assert (mcnt >= 0);
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
5204 /* Originally, this is how many times we HAVE to succeed. */
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
5205 if (mcnt > 0)
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
5206 {
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
5207 mcnt--;
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
5208 p += 2;
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
5209 STORE_NUMBER_AND_INCR (p, mcnt);
2345
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
5210 DEBUG_PRINT3 (" Setting %p to %d.\n", p, mcnt);
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
5211 }
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
5212 else if (mcnt == 0)
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
5213 {
2345
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
5214 DEBUG_PRINT2 (" Setting two bytes from %p to no_op.\n", p+2);
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
5215 p[2] = (unsigned char) no_op;
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
5216 p[3] = (unsigned char) no_op;
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
5217 goto on_failure;
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
5218 }
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
5219 break;
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
5220
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
5221 case jump_n:
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
5222 EXTRACT_NUMBER (mcnt, p + 2);
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
5223 DEBUG_PRINT2 ("EXECUTING jump_n %d.\n", mcnt);
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
5224
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
5225 /* Originally, this is how many times we CAN jump. */
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
5226 if (mcnt)
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
5227 {
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
5228 mcnt--;
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
5229 STORE_NUMBER (p + 2, mcnt);
515
69ba3b63e1d1 (gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents: 511
diff changeset
5230 goto unconditional_jump;
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
5231 }
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
5232 /* If don't have to jump any more, skip over the rest of command. */
515
69ba3b63e1d1 (gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents: 511
diff changeset
5233 else
69ba3b63e1d1 (gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents: 511
diff changeset
5234 p += 4;
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
5235 break;
515
69ba3b63e1d1 (gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents: 511
diff changeset
5236
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
5237 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
5238 {
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
5239 DEBUG_PRINT1 ("EXECUTING set_number_at.\n");
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
5240
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
5241 EXTRACT_NUMBER_AND_INCR (mcnt, p);
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
5242 p1 = p + mcnt;
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
5243 EXTRACT_NUMBER_AND_INCR (mcnt, p);
2345
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
5244 DEBUG_PRINT3 (" Setting %p to %d.\n", p1, mcnt);
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
5245 STORE_NUMBER (p1, mcnt);
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
5246 break;
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
5247 }
521
7089c3a3a164 (AT_WORD_BOUNDARY): Disable macro.
Karl Heuer <kwzh@gnu.org>
parents: 515
diff changeset
5248
7089c3a3a164 (AT_WORD_BOUNDARY): Disable macro.
Karl Heuer <kwzh@gnu.org>
parents: 515
diff changeset
5249 case wordbound:
2349
5fa185a9956e * regex.c: Declare a new type `re_char' used throughout the code for the
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2345
diff changeset
5250 case notwordbound:
5fa185a9956e * regex.c: Declare a new type `re_char' used throughout the code for the
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2345
diff changeset
5251 not = (re_opcode_t) *(p - 1) == notwordbound;
5fa185a9956e * regex.c: Declare a new type `re_char' used throughout the code for the
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2345
diff changeset
5252 DEBUG_PRINT2 ("EXECUTING %swordbound.\n", not?"not":"");
939
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
5253
2350
f3edfed6aa96 (re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2349
diff changeset
5254 /* We SUCCEED (or FAIL) in one of the following cases: */
939
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
5255
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
5256 /* Case 1: D is at the beginning or the end of string. */
521
7089c3a3a164 (AT_WORD_BOUNDARY): Disable macro.
Karl Heuer <kwzh@gnu.org>
parents: 515
diff changeset
5257 if (AT_STRINGS_BEG (d) || AT_STRINGS_END (d))
2349
5fa185a9956e * regex.c: Declare a new type `re_char' used throughout the code for the
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2345
diff changeset
5258 not = !not;
939
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
5259 else
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
5260 {
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
5261 /* C1 is the character before D, S1 is the syntax of C1, C2
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
5262 is the character at D, and S2 is the syntax of C2. */
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
5263 int c1, c2, s1, s2;
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
5264 #ifdef emacs
2375
f25b865f900c * regex.c (PTR_TO_OFFSET) [!emacs]: Remove.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2372
diff changeset
5265 int offset = PTR_TO_OFFSET (d - 1);
f25b865f900c * regex.c (PTR_TO_OFFSET) [!emacs]: Remove.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2372
diff changeset
5266 int charpos = SYNTAX_TABLE_BYTE_TO_CHAR (offset);
1204
28ff40a118b8 (re_search_2): Fix call to CHAR_HEAD_P.
Richard Stallman <rms@gnu.org>
parents: 1158
diff changeset
5267 UPDATE_SYNTAX_TABLE (charpos);
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
5268 #endif
2349
5fa185a9956e * regex.c: Declare a new type `re_char' used throughout the code for the
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2345
diff changeset
5269 GET_CHAR_BEFORE_2 (c1, d, string1, end1, string2, end2);
939
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
5270 s1 = SYNTAX (c1);
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
5271 #ifdef emacs
1204
28ff40a118b8 (re_search_2): Fix call to CHAR_HEAD_P.
Richard Stallman <rms@gnu.org>
parents: 1158
diff changeset
5272 UPDATE_SYNTAX_TABLE_FORWARD (charpos + 1);
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
5273 #endif
2551
b341325934ed (PREFETCH_NOLIMIT): New function.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2537
diff changeset
5274 PREFETCH_NOLIMIT ();
2375
f25b865f900c * regex.c (PTR_TO_OFFSET) [!emacs]: Remove.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2372
diff changeset
5275 c2 = RE_STRING_CHAR (d, dend - d);
939
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
5276 s2 = SYNTAX (c2);
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
5277
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
5278 if (/* Case 2: Only one of S1 and S2 is Sword. */
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
5279 ((s1 == Sword) != (s2 == Sword))
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
5280 /* Case 3: Both of S1 and S2 are Sword, and macro
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
5281 WORD_BOUNDARY_P (C1, C2) returns nonzero. */
939
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
5282 || ((s1 == Sword) && WORD_BOUNDARY_P (c1, c2)))
2349
5fa185a9956e * regex.c: Declare a new type `re_char' used throughout the code for the
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2345
diff changeset
5283 not = !not;
5fa185a9956e * regex.c: Declare a new type `re_char' used throughout the code for the
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2345
diff changeset
5284 }
5fa185a9956e * regex.c: Declare a new type `re_char' used throughout the code for the
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2345
diff changeset
5285 if (not)
521
7089c3a3a164 (AT_WORD_BOUNDARY): Disable macro.
Karl Heuer <kwzh@gnu.org>
parents: 515
diff changeset
5286 break;
939
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
5287 else
521
7089c3a3a164 (AT_WORD_BOUNDARY): Disable macro.
Karl Heuer <kwzh@gnu.org>
parents: 515
diff changeset
5288 goto fail;
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
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 case wordbeg:
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
5291 DEBUG_PRINT1 ("EXECUTING wordbeg.\n");
939
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
5292
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
5293 /* We FAIL in one of the following cases: */
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
5294
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
5295 /* Case 1: D is at the end of string. */
939
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
5296 if (AT_STRINGS_END (d))
2350
f3edfed6aa96 (re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2349
diff changeset
5297 goto fail;
939
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
5298 else
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
5299 {
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
5300 /* C1 is the character before D, S1 is the syntax of C1, C2
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
5301 is the character at D, and S2 is the syntax of C2. */
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
5302 int c1, c2, s1, s2;
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
5303 #ifdef emacs
2375
f25b865f900c * regex.c (PTR_TO_OFFSET) [!emacs]: Remove.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2372
diff changeset
5304 int offset = PTR_TO_OFFSET (d);
f25b865f900c * regex.c (PTR_TO_OFFSET) [!emacs]: Remove.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2372
diff changeset
5305 int charpos = SYNTAX_TABLE_BYTE_TO_CHAR (offset);
1218
51cf07183c67 (re_match_2_internal): Use SYNTAX_TABLE_BYTE_TO_CHAR.
Richard Stallman <rms@gnu.org>
parents: 1204
diff changeset
5306 UPDATE_SYNTAX_TABLE (charpos);
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
5307 #endif
2350
f3edfed6aa96 (re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2349
diff changeset
5308 PREFETCH ();
2375
f25b865f900c * regex.c (PTR_TO_OFFSET) [!emacs]: Remove.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2372
diff changeset
5309 c2 = RE_STRING_CHAR (d, dend - d);
939
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
5310 s2 = SYNTAX (c2);
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
5311
939
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
5312 /* Case 2: S2 is not Sword. */
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
5313 if (s2 != Sword)
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
5314 goto fail;
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
5315
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
5316 /* Case 3: D is not at the beginning of string ... */
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
5317 if (!AT_STRINGS_BEG (d))
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
5318 {
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
5319 GET_CHAR_BEFORE_2 (c1, d, string1, end1, string2, end2);
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
5320 #ifdef emacs
1204
28ff40a118b8 (re_search_2): Fix call to CHAR_HEAD_P.
Richard Stallman <rms@gnu.org>
parents: 1158
diff changeset
5321 UPDATE_SYNTAX_TABLE_BACKWARD (charpos - 1);
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
5322 #endif
939
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
5323 s1 = SYNTAX (c1);
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
5324
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
5325 /* ... and S1 is Sword, and WORD_BOUNDARY_P (C1, C2)
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
5326 returns 0. */
939
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
5327 if ((s1 == Sword) && !WORD_BOUNDARY_P (c1, c2))
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
5328 goto fail;
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
5329 }
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
5330 }
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
5331 break;
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
5332
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 case wordend:
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
5334 DEBUG_PRINT1 ("EXECUTING wordend.\n");
939
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
5335
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
5336 /* We FAIL in one of the following cases: */
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
5337
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
5338 /* Case 1: D is at the beginning of string. */
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
5339 if (AT_STRINGS_BEG (d))
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
5340 goto fail;
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
5341 else
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
5342 {
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
5343 /* C1 is the character before D, S1 is the syntax of C1, C2
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
5344 is the character at D, and S2 is the syntax of C2. */
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
5345 int c1, c2, s1, s2;
1204
28ff40a118b8 (re_search_2): Fix call to CHAR_HEAD_P.
Richard Stallman <rms@gnu.org>
parents: 1158
diff changeset
5346 #ifdef emacs
2375
f25b865f900c * regex.c (PTR_TO_OFFSET) [!emacs]: Remove.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2372
diff changeset
5347 int offset = PTR_TO_OFFSET (d) - 1;
f25b865f900c * regex.c (PTR_TO_OFFSET) [!emacs]: Remove.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2372
diff changeset
5348 int charpos = SYNTAX_TABLE_BYTE_TO_CHAR (offset);
1218
51cf07183c67 (re_match_2_internal): Use SYNTAX_TABLE_BYTE_TO_CHAR.
Richard Stallman <rms@gnu.org>
parents: 1204
diff changeset
5349 UPDATE_SYNTAX_TABLE (charpos);
1204
28ff40a118b8 (re_search_2): Fix call to CHAR_HEAD_P.
Richard Stallman <rms@gnu.org>
parents: 1158
diff changeset
5350 #endif
2350
f3edfed6aa96 (re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2349
diff changeset
5351 GET_CHAR_BEFORE_2 (c1, d, string1, end1, string2, end2);
939
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
5352 s1 = SYNTAX (c1);
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
5353
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
5354 /* Case 2: S1 is not Sword. */
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
5355 if (s1 != Sword)
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
5356 goto fail;
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
5357
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
5358 /* Case 3: D is not at the end of string ... */
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
5359 if (!AT_STRINGS_END (d))
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
5360 {
2551
b341325934ed (PREFETCH_NOLIMIT): New function.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2537
diff changeset
5361 PREFETCH_NOLIMIT ();
2375
f25b865f900c * regex.c (PTR_TO_OFFSET) [!emacs]: Remove.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2372
diff changeset
5362 c2 = RE_STRING_CHAR (d, dend - d);
1204
28ff40a118b8 (re_search_2): Fix call to CHAR_HEAD_P.
Richard Stallman <rms@gnu.org>
parents: 1158
diff changeset
5363 #ifdef emacs
28ff40a118b8 (re_search_2): Fix call to CHAR_HEAD_P.
Richard Stallman <rms@gnu.org>
parents: 1158
diff changeset
5364 UPDATE_SYNTAX_TABLE_FORWARD (charpos);
28ff40a118b8 (re_search_2): Fix call to CHAR_HEAD_P.
Richard Stallman <rms@gnu.org>
parents: 1158
diff changeset
5365 #endif
939
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
5366 s2 = SYNTAX (c2);
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
5367
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
5368 /* ... and S2 is Sword, and WORD_BOUNDARY_P (C1, C2)
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
5369 returns 0. */
939
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
5370 if ((s2 == Sword) && !WORD_BOUNDARY_P (c1, c2))
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
5371 goto fail;
939
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
5372 }
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
5373 }
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
5374 break;
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
5375
2356
d93889e88226 (CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2355
diff changeset
5376 case syntaxspec:
d93889e88226 (CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2355
diff changeset
5377 case notsyntaxspec:
d93889e88226 (CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2355
diff changeset
5378 not = (re_opcode_t) *(p - 1) == notsyntaxspec;
d93889e88226 (CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2355
diff changeset
5379 mcnt = *p++;
d93889e88226 (CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2355
diff changeset
5380 DEBUG_PRINT3 ("EXECUTING %ssyntaxspec %d.\n", not?"not":"", mcnt);
d93889e88226 (CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2355
diff changeset
5381 PREFETCH ();
d93889e88226 (CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2355
diff changeset
5382 #ifdef emacs
d93889e88226 (CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2355
diff changeset
5383 {
2375
f25b865f900c * regex.c (PTR_TO_OFFSET) [!emacs]: Remove.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2372
diff changeset
5384 int offset = PTR_TO_OFFSET (d);
f25b865f900c * regex.c (PTR_TO_OFFSET) [!emacs]: Remove.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2372
diff changeset
5385 int pos1 = SYNTAX_TABLE_BYTE_TO_CHAR (offset);
2356
d93889e88226 (CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2355
diff changeset
5386 UPDATE_SYNTAX_TABLE (pos1);
d93889e88226 (CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2355
diff changeset
5387 }
d93889e88226 (CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2355
diff changeset
5388 #endif
d93889e88226 (CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2355
diff changeset
5389 {
d93889e88226 (CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2355
diff changeset
5390 int c, len;
d93889e88226 (CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2355
diff changeset
5391
2375
f25b865f900c * regex.c (PTR_TO_OFFSET) [!emacs]: Remove.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2372
diff changeset
5392 c = RE_STRING_CHAR_AND_LENGTH (d, dend - d, len);
2356
d93889e88226 (CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2355
diff changeset
5393
2359
dbf725277cfc (enum syntaxcode): Provide default for non-Emacs.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2357
diff changeset
5394 if ((SYNTAX (c) != (enum syntaxcode) mcnt) ^ not)
2356
d93889e88226 (CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2355
diff changeset
5395 goto fail;
d93889e88226 (CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2355
diff changeset
5396 d += len;
d93889e88226 (CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2355
diff changeset
5397 }
d93889e88226 (CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2355
diff changeset
5398 break;
d93889e88226 (CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2355
diff changeset
5399
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
5400 #ifdef emacs
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
5401 case before_dot:
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
5402 DEBUG_PRINT1 ("EXECUTING before_dot.\n");
2349
5fa185a9956e * regex.c: Declare a new type `re_char' used throughout the code for the
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2345
diff changeset
5403 if (PTR_BYTE_POS (d) >= PT_BYTE)
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
5404 goto fail;
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
5405 break;
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
5406
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
5407 case at_dot:
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
5408 DEBUG_PRINT1 ("EXECUTING at_dot.\n");
2349
5fa185a9956e * regex.c: Declare a new type `re_char' used throughout the code for the
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2345
diff changeset
5409 if (PTR_BYTE_POS (d) != PT_BYTE)
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
5410 goto fail;
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
5411 break;
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
5412
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
5413 case after_dot:
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
5414 DEBUG_PRINT1 ("EXECUTING after_dot.\n");
2349
5fa185a9956e * regex.c: Declare a new type `re_char' used throughout the code for the
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2345
diff changeset
5415 if (PTR_BYTE_POS (d) <= PT_BYTE)
941
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
5416 goto fail;
a6403bc27be4 Fix up whitespace.
Richard Stallman <rms@gnu.org>
parents: 939
diff changeset
5417 break;
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
5418
2356
d93889e88226 (CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2355
diff changeset
5419 case categoryspec:
d93889e88226 (CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2355
diff changeset
5420 case notcategoryspec:
d93889e88226 (CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2355
diff changeset
5421 not = (re_opcode_t) *(p - 1) == notcategoryspec;
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
5422 mcnt = *p++;
2356
d93889e88226 (CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2355
diff changeset
5423 DEBUG_PRINT3 ("EXECUTING %scategoryspec %d.\n", not?"not":"", mcnt);
939
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
5424 PREFETCH ();
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
5425 {
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
5426 int c, len;
2375
f25b865f900c * regex.c (PTR_TO_OFFSET) [!emacs]: Remove.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2372
diff changeset
5427 c = RE_STRING_CHAR_AND_LENGTH (d, dend - d, len);
939
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
5428
2356
d93889e88226 (CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2355
diff changeset
5429 if ((!CHAR_HAS_CATEGORY (c, mcnt)) ^ not)
939
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
5430 goto fail;
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
5431 d += len;
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
5432 }
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
5433 break;
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
5434
2356
d93889e88226 (CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2355
diff changeset
5435 #endif /* emacs */
515
69ba3b63e1d1 (gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents: 511
diff changeset
5436
939
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
5437 default:
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
5438 abort ();
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
5439 }
939
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
5440 continue; /* Successfully executed one pattern command; keep going. */
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
5441
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents: 438
diff changeset
5442
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents: 438
diff changeset
5443 /* 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
5444 fail:
1660
ef1f39a7e7c3 (re_match_2_internal) [WINDOWSNT & emacs]: Insert QUIT at various places.
Richard Stallman <rms@gnu.org>
parents: 1583
diff changeset
5445 QUIT;
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
5446 if (!FAIL_STACK_EMPTY ())
2345
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
5447 {
2349
5fa185a9956e * regex.c: Declare a new type `re_char' used throughout the code for the
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2345
diff changeset
5448 re_char *str;
2345
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
5449 unsigned char *pat;
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
5450 /* A restart point is known. Restore to that state. */
939
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
5451 DEBUG_PRINT1 ("\nFAIL:\n");
2345
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
5452 POP_FAILURE_POINT (str, pat);
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
5453 switch (SWITCH_ENUM_CAST ((re_opcode_t) *pat++))
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
5454 {
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
5455 case on_failure_keep_string_jump:
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
5456 assert (str == NULL);
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
5457 goto continue_failure_jump;
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
5458
2370
d8ded9c0e20c (enum re_opcode_t): New opcode on_failure_jump_nastyloop.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2359
diff changeset
5459 case on_failure_jump_nastyloop:
d8ded9c0e20c (enum re_opcode_t): New opcode on_failure_jump_nastyloop.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2359
diff changeset
5460 assert ((re_opcode_t)pat[-2] == no_op);
d8ded9c0e20c (enum re_opcode_t): New opcode on_failure_jump_nastyloop.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2359
diff changeset
5461 PUSH_FAILURE_POINT (pat - 2, str);
d8ded9c0e20c (enum re_opcode_t): New opcode on_failure_jump_nastyloop.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2359
diff changeset
5462 /* Fallthrough */
d8ded9c0e20c (enum re_opcode_t): New opcode on_failure_jump_nastyloop.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2359
diff changeset
5463
2345
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
5464 case on_failure_jump_loop:
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
5465 case on_failure_jump:
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
5466 case succeed_n:
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
5467 d = str;
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
5468 continue_failure_jump:
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
5469 EXTRACT_NUMBER_AND_INCR (mcnt, pat);
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
5470 p = pat + mcnt;
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
5471 break;
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
5472
2370
d8ded9c0e20c (enum re_opcode_t): New opcode on_failure_jump_nastyloop.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2359
diff changeset
5473 case no_op:
d8ded9c0e20c (enum re_opcode_t): New opcode on_failure_jump_nastyloop.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2359
diff changeset
5474 /* A special frame used for nastyloops. */
d8ded9c0e20c (enum re_opcode_t): New opcode on_failure_jump_nastyloop.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2359
diff changeset
5475 goto fail;
d8ded9c0e20c (enum re_opcode_t): New opcode on_failure_jump_nastyloop.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2359
diff changeset
5476
2345
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
5477 default:
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
5478 abort();
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
5479 }
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
5480
93d6633849d6 This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2153
diff changeset
5481 assert (p >= bufp->buffer && p <= pend);
939
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
5482
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
5483 if (d >= string1 && d <= end1)
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
5484 dend = end_match_1;
939
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
5485 }
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
5486 else
939
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
5487 break; /* Matching at this starting point really fails. */
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
5488 } /* 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
5489
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents: 438
diff changeset
5490 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
5491 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
5492
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents: 438
diff changeset
5493 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
5494
939
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
5495 return -1; /* Failure to match. */
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
5496 } /* 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
5497
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents: 438
diff changeset
5498 /* 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
5499
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents: 438
diff changeset
5500 /* 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
5501 bytes; nonzero otherwise. */
515
69ba3b63e1d1 (gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents: 511
diff changeset
5502
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
5503 static int
2375
f25b865f900c * regex.c (PTR_TO_OFFSET) [!emacs]: Remove.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2372
diff changeset
5504 bcmp_translate (s1, s2, len, translate, multibyte)
f25b865f900c * regex.c (PTR_TO_OFFSET) [!emacs]: Remove.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2372
diff changeset
5505 re_char *s1, *s2;
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
5506 register int len;
501
f29b13c2cefd (TRANSLATE, PATFETCH): Cast elt of `translate'.
Richard Stallman <rms@gnu.org>
parents: 490
diff changeset
5507 RE_TRANSLATE_TYPE translate;
2375
f25b865f900c * regex.c (PTR_TO_OFFSET) [!emacs]: Remove.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2372
diff changeset
5508 const int multibyte;
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
5509 {
2375
f25b865f900c * regex.c (PTR_TO_OFFSET) [!emacs]: Remove.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2372
diff changeset
5510 register re_char *p1 = s1, *p2 = s2;
f25b865f900c * regex.c (PTR_TO_OFFSET) [!emacs]: Remove.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2372
diff changeset
5511 re_char *p1_end = s1 + len;
f25b865f900c * regex.c (PTR_TO_OFFSET) [!emacs]: Remove.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2372
diff changeset
5512 re_char *p2_end = s2 + len;
1296
7b938cc81ae2 (compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents: 1218
diff changeset
5513
7b938cc81ae2 (compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents: 1218
diff changeset
5514 while (p1 != p1_end && p2 != p2_end)
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
5515 {
1296
7b938cc81ae2 (compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents: 1218
diff changeset
5516 int p1_charlen, p2_charlen;
7b938cc81ae2 (compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents: 1218
diff changeset
5517 int p1_ch, p2_ch;
7b938cc81ae2 (compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents: 1218
diff changeset
5518
2375
f25b865f900c * regex.c (PTR_TO_OFFSET) [!emacs]: Remove.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2372
diff changeset
5519 p1_ch = RE_STRING_CHAR_AND_LENGTH (p1, p1_end - p1, p1_charlen);
f25b865f900c * regex.c (PTR_TO_OFFSET) [!emacs]: Remove.
Stefan Monnier <monnier@iro.umontreal.ca>
parents: 2372
diff changeset
5520 p2_ch = RE_STRING_CHAR_AND_LENGTH (p2, p2_end - p2, p2_charlen);
1296
7b938cc81ae2 (compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents: 1218
diff changeset
5521
7b938cc81ae2 (compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents: 1218
diff changeset
5522 if (RE_TRANSLATE (translate, p1_ch)
7b938cc81ae2 (compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents: 1218
diff changeset
5523 != RE_TRANSLATE (translate, p2_ch))
963
ed0235161e4b (TRANSLATE, re_search_2, re_match_2_internal,bcmp_translate):
Richard Stallman <rms@gnu.org>
parents: 961
diff changeset
5524 return 1;
1296
7b938cc81ae2 (compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents: 1218
diff changeset
5525
7b938cc81ae2 (compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents: 1218
diff changeset
5526 p1 += p1_charlen, p2 += p2_charlen;
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
5527 }
1296
7b938cc81ae2 (compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents: 1218
diff changeset
5528
7b938cc81ae2 (compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents: 1218
diff changeset
5529 if (p1 != p1_end || p2 != p2_end)
7b938cc81ae2 (compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents: 1218
diff changeset
5530 return 1;
7b938cc81ae2 (compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents: 1218
diff changeset
5531
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
5532 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
5533 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents: 438
diff changeset
5534
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents: 438
diff changeset
5535 /* 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
5536
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents: 438
diff changeset
5537 /* 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
5538 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
5539 Returns 0 if the pattern was valid, otherwise an error string.
515
69ba3b63e1d1 (gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents: 511
diff changeset
5540
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
5541 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
5542 are set in BUFP on entry.
515
69ba3b63e1d1 (gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents: 511
diff changeset
5543
939
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
5544 We call regex_compile to do the actual compilation. */
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
5545
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents: 438
diff changeset
5546 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
5547 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
5548 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
5549 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
5550 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
5551 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents: 438
diff changeset
5552 reg_errcode_t ret;
515
69ba3b63e1d1 (gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents: 511
diff changeset
5553
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
5554 /* 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
5555 (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
5556 bufp->regs_allocated = REGS_UNALLOCATED;
515
69ba3b63e1d1 (gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents: 511
diff changeset
5557
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
5558 /* 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
5559 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
5560 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
5561 bufp->no_sub = 0;
515
69ba3b63e1d1 (gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents: 511
diff changeset
5562
939
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
5563 /* Match anchors at newline. */
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
5564 bufp->newline_anchor = 1;
515
69ba3b63e1d1 (gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents: 511
diff changeset
5565
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
5566 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
5567
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents: 438
diff changeset
5568 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
5569 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
5570 return gettext (re_error_msgid[(int) ret]);
515
69ba3b63e1d1 (gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents: 511
diff changeset
5571 }
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
5572
939
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
5573 /* Entry points compatible with 4.2 BSD regex library. We don't define
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
5574 them unless specifically requested. */
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
5575
622
152fc00ed9b5 Tue May 21 19:18:05 1996 Roland McGrath <roland@delasyd.gnu.ai.mit.edu>
Roland McGrath <roland@gnu.org>
parents: 607
diff changeset
5576 #if defined (_REGEX_RE_COMP) || 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
5577
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents: 438
diff changeset
5578 /* 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
5579 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
5580
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents: 438
diff changeset
5581 char *
636
ddd029a89661 [_LIBC] (re_comp, re_exec): Use `weak_function' keyword in defn instead of
Roland McGrath <roland@gnu.org>
parents: 631
diff changeset
5582 #ifdef _LIBC
ddd029a89661 [_LIBC] (re_comp, re_exec): Use `weak_function' keyword in defn instead of
Roland McGrath <roland@gnu.org>
parents: 631
diff changeset
5583 /* Make these definitions weak in libc, so POSIX programs can redefine
ddd029a89661 [_LIBC] (re_comp, re_exec): Use `weak_function' keyword in defn instead of
Roland McGrath <roland@gnu.org>
parents: 631
diff changeset
5584 these names if they don't use our functions, and still use
ddd029a89661 [_LIBC] (re_comp, re_exec): Use `weak_function' keyword in defn instead of
Roland McGrath <roland@gnu.org>
parents: 631
diff changeset
5585 regcomp/regexec below without link errors. */
ddd029a89661 [_LIBC] (re_comp, re_exec): Use `weak_function' keyword in defn instead of
Roland McGrath <roland@gnu.org>
parents: 631
diff changeset
5586 weak_function
ddd029a89661 [_LIBC] (re_comp, re_exec): Use `weak_function' keyword in defn instead of
Roland McGrath <roland@gnu.org>
parents: 631
diff changeset
5587 #endif
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
5588 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
5589 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
5590 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents: 438
diff changeset
5591 reg_errcode_t ret;
515
69ba3b63e1d1 (gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents: 511
diff changeset
5592
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
5593 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
5594 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents: 438
diff changeset
5595 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
5596 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
5597 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
5598 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents: 438
diff changeset
5599
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents: 438
diff changeset
5600 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
5601 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents: 438
diff changeset
5602 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
5603 if (re_comp_buf.buffer == NULL)
939
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
5604 return gettext (re_error_msgid[(int) REG_ESPACE]);
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
5605 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
5606
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents: 438
diff changeset
5607 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
5608 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
5609 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
5610 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents: 438
diff changeset
5611
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents: 438
diff changeset
5612 /* 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
5613 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
5614
939
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
5615 /* Match anchors at newlines. */
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
5616 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
5617
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents: 438
diff changeset
5618 ret = regex_compile (s, strlen (s), re_syntax_options, &re_comp_buf);
515
69ba3b63e1d1 (gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents: 511
diff changeset
5619
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
5620 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
5621 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
5622
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents: 438
diff changeset
5623 /* 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
5624 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
5625 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents: 438
diff changeset
5626
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents: 438
diff changeset
5627
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents: 438
diff changeset
5628 int
636
ddd029a89661 [_LIBC] (re_comp, re_exec): Use `weak_function' keyword in defn instead of
Roland McGrath <roland@gnu.org>
parents: 631
diff changeset
5629 #ifdef _LIBC
ddd029a89661 [_LIBC] (re_comp, re_exec): Use `weak_function' keyword in defn instead of
Roland McGrath <roland@gnu.org>
parents: 631
diff changeset
5630 weak_function
ddd029a89661 [_LIBC] (re_comp, re_exec): Use `weak_function' keyword in defn instead of
Roland McGrath <roland@gnu.org>
parents: 631
diff changeset
5631 #endif
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
5632 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
5633 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
5634 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents: 438
diff changeset
5635 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
5636 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
5637 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
5638 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents: 438
diff changeset
5639 #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
5640
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents: 438
diff changeset
5641 /* 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
5642
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents: 438
diff changeset
5643 #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
5644
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents: 438
diff changeset
5645 /* 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
5646
939
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
5647 PREG is a regex_t *. We do not expect any fields to be initialized,
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
5648 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
5649
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents: 438
diff changeset
5650 `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
5651 `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
5652 `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
5653 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
5654 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
5655 `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
5656 `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
5657 `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
5658
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents: 438
diff changeset
5659 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
5660
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents: 438
diff changeset
5661 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
5662
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents: 438
diff changeset
5663 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
5664 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
5665
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents: 438
diff changeset
5666 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
5667 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
5668
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents: 438
diff changeset
5669 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
5670 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
5671
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents: 438
diff changeset
5672 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
5673 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
5674 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
5675
939
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
5676 It returns 0 if it succeeds, nonzero if it doesn't. (See regex.h for
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
5677 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
5678
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents: 438
diff changeset
5679 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
5680 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
5681 regex_t *preg;
515
69ba3b63e1d1 (gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents: 511
diff changeset
5682 const char *pattern;
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
5683 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
5684 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents: 438
diff changeset
5685 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
5686 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
5687 = (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
5688 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
5689
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents: 438
diff changeset
5690 /* 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
5691 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
5692 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
5693 preg->used = 0;
515
69ba3b63e1d1 (gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents: 511
diff changeset
5694
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
5695 /* 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
5696 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
5697 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
5698 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
5699 preg->fastmap = 0;
515
69ba3b63e1d1 (gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents: 511
diff changeset
5700
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
5701 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
5702 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents: 438
diff changeset
5703 unsigned i;
515
69ba3b63e1d1 (gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents: 511
diff changeset
5704
501
f29b13c2cefd (TRANSLATE, PATFETCH): Cast elt of `translate'.
Richard Stallman <rms@gnu.org>
parents: 490
diff changeset
5705 preg->translate
f29b13c2cefd (TRANSLATE, PATFETCH): Cast elt of `translate'.
Richard Stallman <rms@gnu.org>
parents: 490
diff changeset
5706 = (RE_TRANSLATE_TYPE) malloc (CHAR_SET_SIZE
f29b13c2cefd (TRANSLATE, PATFETCH): Cast elt of `translate'.
Richard Stallman <rms@gnu.org>
parents: 490
diff changeset
5707 * sizeof (*(RE_TRANSLATE_TYPE)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
5708 if (preg->translate == NULL)
939
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
5709 return (int) REG_ESPACE;
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
5710
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents: 438
diff changeset
5711 /* 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
5712 for (i = 0; i < CHAR_SET_SIZE; i++)
939
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
5713 preg->translate[i] = ISUPPER (i) ? tolower (i) : i;
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
5714 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents: 438
diff changeset
5715 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
5716 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
5717
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents: 438
diff changeset
5718 /* 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
5719 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
5720 { /* 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
5721 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
5722 syntax |= RE_HAT_LISTS_NOT_NEWLINE;
939
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
5723 /* It also changes the matching behavior. */
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
5724 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
5725 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents: 438
diff changeset
5726 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
5727 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
5728
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents: 438
diff changeset
5729 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
5730
515
69ba3b63e1d1 (gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents: 511
diff changeset
5731 /* POSIX says a null character in the pattern terminates it, so we
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
5732 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
5733 ret = regex_compile (pattern, strlen (pattern), syntax, preg);
515
69ba3b63e1d1 (gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents: 511
diff changeset
5734
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
5735 /* 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
5736 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
5737 if (ret == REG_ERPAREN) ret = REG_EPAREN;
515
69ba3b63e1d1 (gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents: 511
diff changeset
5738
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
5739 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
5740 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents: 438
diff changeset
5741
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents: 438
diff changeset
5742
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents: 438
diff changeset
5743 /* 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
5744 string STRING.
515
69ba3b63e1d1 (gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents: 511
diff changeset
5745
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
5746 If NMATCH is zero or REG_NOSUB was set in the cflags argument to
939
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
5747 `regcomp', we ignore PMATCH. Otherwise, we assume PMATCH has at
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
5748 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
5749 corresponding matched substrings.
515
69ba3b63e1d1 (gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents: 511
diff changeset
5750
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
5751 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
5752 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
5753 string; if REG_NOTEOL is set, then $ does not match at the end.
515
69ba3b63e1d1 (gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents: 511
diff changeset
5754
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
5755 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
5756
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents: 438
diff changeset
5757 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
5758 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
5759 const regex_t *preg;
515
69ba3b63e1d1 (gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents: 511
diff changeset
5760 const char *string;
69ba3b63e1d1 (gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents: 511
diff changeset
5761 size_t nmatch;
69ba3b63e1d1 (gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents: 511
diff changeset
5762 regmatch_t pmatch[];
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
5763 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
5764 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents: 438
diff changeset
5765 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
5766 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
5767 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
5768 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
5769 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
5770
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents: 438
diff changeset
5771 private_preg = *preg;
515
69ba3b63e1d1 (gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents: 511
diff changeset
5772
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
5773 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
5774 private_preg.not_eol = !!(eflags & REG_NOTEOL);
515
69ba3b63e1d1 (gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents: 511
diff changeset
5775
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
5776 /* 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
5777 information about, via `nmatch'. We have to pass that on to the
939
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
5778 matching routines. */
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
5779 private_preg.regs_allocated = REGS_FIXED;
515
69ba3b63e1d1 (gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents: 511
diff changeset
5780
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
5781 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
5782 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents: 438
diff changeset
5783 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
5784 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
5785 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
5786 if (regs.start == NULL || regs.end == NULL)
939
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
5787 return (int) REG_NOMATCH;
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
5788 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents: 438
diff changeset
5789
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents: 438
diff changeset
5790 /* 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
5791 ret = re_search (&private_preg, string, len,
939
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
5792 /* start: */ 0, /* range: */ len,
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
5793 want_reg_info ? &regs : (struct re_registers *) 0);
515
69ba3b63e1d1 (gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents: 511
diff changeset
5794
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
5795 /* 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
5796 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
5797 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents: 438
diff changeset
5798 if (ret >= 0)
939
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
5799 {
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
5800 unsigned r;
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
5801
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
5802 for (r = 0; r < nmatch; r++)
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
5803 {
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
5804 pmatch[r].rm_so = regs.start[r];
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
5805 pmatch[r].rm_eo = regs.end[r];
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
5806 }
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
5807 }
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
5808
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
5809 /* If we needed the temporary register info, free the space now. */
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
5810 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
5811 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
5812 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents: 438
diff changeset
5813
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents: 438
diff changeset
5814 /* 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
5815 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
5816 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents: 438
diff changeset
5817
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents: 438
diff changeset
5818
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents: 438
diff changeset
5819 /* 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
5820 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
5821
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents: 438
diff changeset
5822 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
5823 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
5824 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
5825 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
5826 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
5827 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
5828 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents: 438
diff changeset
5829 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
5830 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
5831
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents: 438
diff changeset
5832 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
5833 || errcode >= (sizeof (re_error_msgid) / sizeof (re_error_msgid[0])))
515
69ba3b63e1d1 (gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents: 511
diff changeset
5834 /* Only error codes returned by the rest of the code should be passed
939
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
5835 to this routine. If we are given anything else, or if other regex
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
5836 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
5837 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
5838 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
5839
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents: 438
diff changeset
5840 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
5841
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents: 438
diff changeset
5842 msg_size = strlen (msg) + 1; /* Includes the null. */
515
69ba3b63e1d1 (gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents: 511
diff changeset
5843
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
5844 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
5845 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents: 438
diff changeset
5846 if (msg_size > errbuf_size)
939
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
5847 {
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
5848 strncpy (errbuf, msg, errbuf_size - 1);
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
5849 errbuf[errbuf_size - 1] = 0;
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
5850 }
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
5851 else
939
ace17b6e9d29 (PTR_TO_OFFSET): New macro.
Richard Stallman <rms@gnu.org>
parents: 786
diff changeset
5852 strcpy (errbuf, msg);
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
5853 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents: 438
diff changeset
5854
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents: 438
diff changeset
5855 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
5856 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents: 438
diff changeset
5857
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents: 438
diff changeset
5858
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents: 438
diff changeset
5859 /* 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
5860
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents: 438
diff changeset
5861 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
5862 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
5863 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
5864 {
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents: 438
diff changeset
5865 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
5866 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
5867 preg->buffer = NULL;
515
69ba3b63e1d1 (gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents: 511
diff changeset
5868
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
5869 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
5870 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
5871
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents: 438
diff changeset
5872 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
5873 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
5874 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
5875 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
5876
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents: 438
diff changeset
5877 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
5878 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
5879 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
5880 }
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents: 438
diff changeset
5881
403b2dfdfa0b Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents: 438
diff changeset
5882 #endif /* not emacs */