octave-kai/gnulib-hg: lib/regcomp.c annotate

annotate lib/regcomp.c @ 6077:25d446b8ec0e

* config/srclist.txt: Add glibc bug 1223. * lib/regcomp.c (create_initial_state): Remove duplicate decl.

author	Paul Eggert <eggert@cs.ucla.edu>
date	Sat, 20 Aug 2005 22:26:51 +0000
parents	e2dd51f6e259
children	fff77cf0b47f

rev	line source
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1 /* Extended regular expression matching and search library.
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2 Copyright (C) 2002, 2003, 2004, 2005 Free Software Foundation, Inc.
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3 This file is part of the GNU C Library.
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	4 Contributed by Isamu Hasegawa <isamu@yamato.ibm.com>.
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	5
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	6 This program is free software; you can redistribute it and/or modify
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	7 it under the terms of the GNU General Public License as published by
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	8 the Free Software Foundation; either version 2, or (at your option)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	9 any later version.
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	10
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	11 This program is distributed in the hope that it will be useful,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	12 but WITHOUT ANY WARRANTY; without even the implied warranty of
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	14 GNU General Public License for more details.
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	15
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	16 You should have received a copy of the GNU General Public License along
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	17 with this program; if not, write to the Free Software Foundation,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	18 Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	19
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	20 static reg_errcode_t re_compile_internal (regex_t preg, const char pattern,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	21 int length, reg_syntax_t syntax);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	22 static void re_compile_fastmap_iter (regex_t *bufp,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	23 const re_dfastate_t *init_state,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	24 char *fastmap);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	25 static reg_errcode_t init_dfa (re_dfa_t *dfa, int pat_len);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	26 static void init_word_char (re_dfa_t *dfa);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	27 #ifdef RE_ENABLE_I18N
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	28 static void free_charset (re_charset_t *cset);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	29 #endif /* RE_ENABLE_I18N */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	30 static void free_workarea_compile (regex_t *preg);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	31 static reg_errcode_t create_initial_state (re_dfa_t *dfa);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	32 #ifdef RE_ENABLE_I18N
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	33 static void optimize_utf8 (re_dfa_t *dfa);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	34 #endif
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	35 static reg_errcode_t analyze (regex_t *preg);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	36 static reg_errcode_t preorder (bin_tree_t *root,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	37 reg_errcode_t (fn (void , bin_tree_t )),
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	38 void *extra);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	39 static reg_errcode_t postorder (bin_tree_t *root,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	40 reg_errcode_t (fn (void , bin_tree_t )),
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	41 void *extra);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	42 static reg_errcode_t optimize_subexps (void extra, bin_tree_t node);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	43 static reg_errcode_t lower_subexps (void extra, bin_tree_t node);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	44 static bin_tree_t lower_subexp (reg_errcode_t err, regex_t *preg,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	45 bin_tree_t *node);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	46 static reg_errcode_t calc_first (void extra, bin_tree_t node);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	47 static reg_errcode_t calc_next (void extra, bin_tree_t node);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	48 static reg_errcode_t link_nfa_nodes (void extra, bin_tree_t node);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	49 static reg_errcode_t duplicate_node_closure (re_dfa_t *dfa, int top_org_node,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	50 int top_clone_node, int root_node,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	51 unsigned int constraint);
6071 c1760162e42f (duplicate_node): Return new index, not an error code, Paul Eggert <eggert@cs.ucla.edu> parents: 5972 diff changeset	52 static int duplicate_node (re_dfa_t *dfa, int org_idx, unsigned int constraint);
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	53 static int search_duplicated_node (re_dfa_t *dfa, int org_node,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	54 unsigned int constraint);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	55 static reg_errcode_t calc_eclosure (re_dfa_t *dfa);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	56 static reg_errcode_t calc_eclosure_iter (re_node_set new_set, re_dfa_t dfa,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	57 int node, int root);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	58 static reg_errcode_t calc_inveclosure (re_dfa_t *dfa);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	59 static int fetch_number (re_string_t input, re_token_t token,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	60 reg_syntax_t syntax);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	61 static void fetch_token (re_token_t result, re_string_t input,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	62 reg_syntax_t syntax);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	63 static int peek_token (re_token_t token, re_string_t input,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	64 reg_syntax_t syntax);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	65 static int peek_token_bracket (re_token_t token, re_string_t input,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	66 reg_syntax_t syntax);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	67 static bin_tree_t parse (re_string_t regexp, regex_t *preg,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	68 reg_syntax_t syntax, reg_errcode_t *err);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	69 static bin_tree_t parse_reg_exp (re_string_t regexp, regex_t *preg,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	70 re_token_t *token, reg_syntax_t syntax,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	71 int nest, reg_errcode_t *err);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	72 static bin_tree_t parse_branch (re_string_t regexp, regex_t *preg,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	73 re_token_t *token, reg_syntax_t syntax,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	74 int nest, reg_errcode_t *err);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	75 static bin_tree_t parse_expression (re_string_t regexp, regex_t *preg,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	76 re_token_t *token, reg_syntax_t syntax,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	77 int nest, reg_errcode_t *err);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	78 static bin_tree_t parse_sub_exp (re_string_t regexp, regex_t *preg,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	79 re_token_t *token, reg_syntax_t syntax,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	80 int nest, reg_errcode_t *err);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	81 static bin_tree_t parse_dup_op (bin_tree_t dup_elem, re_string_t *regexp,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	82 re_dfa_t dfa, re_token_t token,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	83 reg_syntax_t syntax, reg_errcode_t *err);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	84 static bin_tree_t parse_bracket_exp (re_string_t regexp, re_dfa_t *dfa,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	85 re_token_t *token, reg_syntax_t syntax,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	86 reg_errcode_t *err);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	87 static reg_errcode_t parse_bracket_element (bracket_elem_t *elem,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	88 re_string_t *regexp,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	89 re_token_t *token, int token_len,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	90 re_dfa_t *dfa,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	91 reg_syntax_t syntax,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	92 int accept_hyphen);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	93 static reg_errcode_t parse_bracket_symbol (bracket_elem_t *elem,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	94 re_string_t *regexp,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	95 re_token_t *token);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	96 #ifndef _LIBC
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	97 # ifdef RE_ENABLE_I18N
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	98 static reg_errcode_t build_range_exp (re_bitset_ptr_t sbcset,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	99 re_charset_t mbcset, int range_alloc,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	100 bracket_elem_t *start_elem,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	101 bracket_elem_t *end_elem);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	102 static reg_errcode_t build_collating_symbol (re_bitset_ptr_t sbcset,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	103 re_charset_t *mbcset,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	104 int *coll_sym_alloc,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	105 const unsigned char *name);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	106 # else /* not RE_ENABLE_I18N */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	107 static reg_errcode_t build_range_exp (re_bitset_ptr_t sbcset,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	108 bracket_elem_t *start_elem,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	109 bracket_elem_t *end_elem);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	110 static reg_errcode_t build_collating_symbol (re_bitset_ptr_t sbcset,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	111 const unsigned char *name);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	112 # endif /* not RE_ENABLE_I18N */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	113 #endif /* not _LIBC */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	114 #ifdef RE_ENABLE_I18N
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	115 static reg_errcode_t build_equiv_class (re_bitset_ptr_t sbcset,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	116 re_charset_t *mbcset,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	117 int *equiv_class_alloc,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	118 const unsigned char *name);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	119 static reg_errcode_t build_charclass (unsigned RE_TRANSLATE_TYPE trans,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	120 re_bitset_ptr_t sbcset,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	121 re_charset_t *mbcset,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	122 int *char_class_alloc,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	123 const unsigned char *class_name,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	124 reg_syntax_t syntax);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	125 #else /* not RE_ENABLE_I18N */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	126 static reg_errcode_t build_equiv_class (re_bitset_ptr_t sbcset,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	127 const unsigned char *name);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	128 static reg_errcode_t build_charclass (unsigned RE_TRANSLATE_TYPE trans,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	129 re_bitset_ptr_t sbcset,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	130 const unsigned char *class_name,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	131 reg_syntax_t syntax);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	132 #endif /* not RE_ENABLE_I18N */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	133 static bin_tree_t build_charclass_op (re_dfa_t dfa,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	134 unsigned RE_TRANSLATE_TYPE trans,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	135 const unsigned char *class_name,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	136 const unsigned char *extra,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	137 int non_match, reg_errcode_t *err);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	138 static bin_tree_t create_tree (re_dfa_t dfa,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	139 bin_tree_t left, bin_tree_t right,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	140 re_token_type_t type);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	141 static bin_tree_t create_token_tree (re_dfa_t dfa,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	142 bin_tree_t left, bin_tree_t right,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	143 const re_token_t *token);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	144 static bin_tree_t duplicate_tree (const bin_tree_t src, re_dfa_t *dfa);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	145 static void free_token (re_token_t *node);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	146 static reg_errcode_t free_tree (void extra, bin_tree_t node);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	147 static reg_errcode_t mark_opt_subexp (void extra, bin_tree_t node);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	148
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	149 /* This table gives an error message for each of the error codes listed
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	150 in regex.h. Obviously the order here has to be same as there.
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	151 POSIX doesn't require that we do anything for REG_NOERROR,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	152 but why not be nice? */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	153
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	154 const char __re_error_msgid[] attribute_hidden =
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	155 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	156 #define REG_NOERROR_IDX 0
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	157 gettext_noop ("Success") /* REG_NOERROR */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	158 "\0"
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	159 #define REG_NOMATCH_IDX (REG_NOERROR_IDX + sizeof "Success")
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	160 gettext_noop ("No match") /* REG_NOMATCH */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	161 "\0"
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	162 #define REG_BADPAT_IDX (REG_NOMATCH_IDX + sizeof "No match")
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	163 gettext_noop ("Invalid regular expression") /* REG_BADPAT */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	164 "\0"
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	165 #define REG_ECOLLATE_IDX (REG_BADPAT_IDX + sizeof "Invalid regular expression")
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	166 gettext_noop ("Invalid collation character") /* REG_ECOLLATE */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	167 "\0"
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	168 #define REG_ECTYPE_IDX (REG_ECOLLATE_IDX + sizeof "Invalid collation character")
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	169 gettext_noop ("Invalid character class name") /* REG_ECTYPE */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	170 "\0"
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	171 #define REG_EESCAPE_IDX (REG_ECTYPE_IDX + sizeof "Invalid character class name")
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	172 gettext_noop ("Trailing backslash") /* REG_EESCAPE */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	173 "\0"
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	174 #define REG_ESUBREG_IDX (REG_EESCAPE_IDX + sizeof "Trailing backslash")
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	175 gettext_noop ("Invalid back reference") /* REG_ESUBREG */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	176 "\0"
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	177 #define REG_EBRACK_IDX (REG_ESUBREG_IDX + sizeof "Invalid back reference")
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	178 gettext_noop ("Unmatched [ or [^") /* REG_EBRACK */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	179 "\0"
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	180 #define REG_EPAREN_IDX (REG_EBRACK_IDX + sizeof "Unmatched [ or [^")
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	181 gettext_noop ("Unmatched ( or \\(") /* REG_EPAREN */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	182 "\0"
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	183 #define REG_EBRACE_IDX (REG_EPAREN_IDX + sizeof "Unmatched ( or \\(")
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	184 gettext_noop ("Unmatched \\{") /* REG_EBRACE */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	185 "\0"
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	186 #define REG_BADBR_IDX (REG_EBRACE_IDX + sizeof "Unmatched \\{")
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	187 gettext_noop ("Invalid content of \\{\\}") /* REG_BADBR */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	188 "\0"
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	189 #define REG_ERANGE_IDX (REG_BADBR_IDX + sizeof "Invalid content of \\{\\}")
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	190 gettext_noop ("Invalid range end") /* REG_ERANGE */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	191 "\0"
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	192 #define REG_ESPACE_IDX (REG_ERANGE_IDX + sizeof "Invalid range end")
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	193 gettext_noop ("Memory exhausted") /* REG_ESPACE */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	194 "\0"
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	195 #define REG_BADRPT_IDX (REG_ESPACE_IDX + sizeof "Memory exhausted")
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	196 gettext_noop ("Invalid preceding regular expression") /* REG_BADRPT */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	197 "\0"
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	198 #define REG_EEND_IDX (REG_BADRPT_IDX + sizeof "Invalid preceding regular expression")
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	199 gettext_noop ("Premature end of regular expression") /* REG_EEND */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	200 "\0"
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	201 #define REG_ESIZE_IDX (REG_EEND_IDX + sizeof "Premature end of regular expression")
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	202 gettext_noop ("Regular expression too big") /* REG_ESIZE */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	203 "\0"
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	204 #define REG_ERPAREN_IDX (REG_ESIZE_IDX + sizeof "Regular expression too big")
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	205 gettext_noop ("Unmatched ) or \\)") /* REG_ERPAREN */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	206 };
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	207
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	208 const size_t __re_error_msgid_idx[] attribute_hidden =
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	209 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	210 REG_NOERROR_IDX,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	211 REG_NOMATCH_IDX,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	212 REG_BADPAT_IDX,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	213 REG_ECOLLATE_IDX,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	214 REG_ECTYPE_IDX,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	215 REG_EESCAPE_IDX,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	216 REG_ESUBREG_IDX,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	217 REG_EBRACK_IDX,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	218 REG_EPAREN_IDX,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	219 REG_EBRACE_IDX,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	220 REG_BADBR_IDX,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	221 REG_ERANGE_IDX,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	222 REG_ESPACE_IDX,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	223 REG_BADRPT_IDX,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	224 REG_EEND_IDX,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	225 REG_ESIZE_IDX,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	226 REG_ERPAREN_IDX
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	227 };
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	228
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	229 /* Entry points for GNU code. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	230
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	231 /* re_compile_pattern is the GNU regular expression compiler: it
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	232 compiles PATTERN (of length LENGTH) and puts the result in BUFP.
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	233 Returns 0 if the pattern was valid, otherwise an error string.
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	234
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	235 Assumes the `allocated' (and perhaps `buffer') and `translate' fields
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	236 are set in BUFP on entry. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	237
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	238 const char *
6076 e2dd51f6e259 * config/srclist.txt: Add glibc bugs 1220, 1221, 1222. Paul Eggert <eggert@cs.ucla.edu> parents: 6071 diff changeset	239 re_compile_pattern (const char *pattern, size_t length,
e2dd51f6e259 * config/srclist.txt: Add glibc bugs 1220, 1221, 1222. Paul Eggert <eggert@cs.ucla.edu> parents: 6071 diff changeset	240 struct re_pattern_buffer *bufp)
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	241 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	242 reg_errcode_t ret;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	243
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	244 /* And GNU code determines whether or not to get register information
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	245 by passing null for the REGS argument to re_match, etc., not by
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	246 setting no_sub, unless RE_NO_SUB is set. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	247 bufp->no_sub = !!(re_syntax_options & RE_NO_SUB);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	248
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	249 /* Match anchors at newline. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	250 bufp->newline_anchor = 1;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	251
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	252 ret = re_compile_internal (bufp, pattern, length, re_syntax_options);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	253
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	254 if (!ret)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	255 return NULL;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	256 return gettext (__re_error_msgid + __re_error_msgid_idx[(int) ret]);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	257 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	258 #ifdef _LIBC
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	259 weak_alias (__re_compile_pattern, re_compile_pattern)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	260 #endif
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	261
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	262 /* Set by `re_set_syntax' to the current regexp syntax to recognize. Can
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	263 also be assigned to arbitrarily: each pattern buffer stores its own
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	264 syntax, so it can be changed between regex compilations. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	265 /* This has no initializer because initialized variables in Emacs
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	266 become read-only after dumping. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	267 reg_syntax_t re_syntax_options;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	268
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	269
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	270 /* Specify the precise syntax of regexps for compilation. This provides
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	271 for compatibility for various utilities which historically have
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	272 different, incompatible syntaxes.
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	273
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	274 The argument SYNTAX is a bit mask comprised of the various bits
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	275 defined in regex.h. We return the old syntax. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	276
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	277 reg_syntax_t
6076 e2dd51f6e259 * config/srclist.txt: Add glibc bugs 1220, 1221, 1222. Paul Eggert <eggert@cs.ucla.edu> parents: 6071 diff changeset	278 re_set_syntax (reg_syntax_t syntax)
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	279 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	280 reg_syntax_t ret = re_syntax_options;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	281
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	282 re_syntax_options = syntax;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	283 return ret;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	284 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	285 #ifdef _LIBC
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	286 weak_alias (__re_set_syntax, re_set_syntax)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	287 #endif
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	288
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	289 int
6076 e2dd51f6e259 * config/srclist.txt: Add glibc bugs 1220, 1221, 1222. Paul Eggert <eggert@cs.ucla.edu> parents: 6071 diff changeset	290 re_compile_fastmap (struct re_pattern_buffer *bufp)
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	291 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	292 re_dfa_t dfa = (re_dfa_t ) bufp->buffer;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	293 char *fastmap = bufp->fastmap;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	294
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	295 memset (fastmap, '\0', sizeof (char) * SBC_MAX);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	296 re_compile_fastmap_iter (bufp, dfa->init_state, fastmap);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	297 if (dfa->init_state != dfa->init_state_word)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	298 re_compile_fastmap_iter (bufp, dfa->init_state_word, fastmap);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	299 if (dfa->init_state != dfa->init_state_nl)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	300 re_compile_fastmap_iter (bufp, dfa->init_state_nl, fastmap);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	301 if (dfa->init_state != dfa->init_state_begbuf)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	302 re_compile_fastmap_iter (bufp, dfa->init_state_begbuf, fastmap);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	303 bufp->fastmap_accurate = 1;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	304 return 0;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	305 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	306 #ifdef _LIBC
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	307 weak_alias (__re_compile_fastmap, re_compile_fastmap)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	308 #endif
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	309
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	310 static inline void
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	311 __attribute ((always_inline))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	312 re_set_fastmap (char *fastmap, int icase, int ch)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	313 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	314 fastmap[ch] = 1;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	315 if (icase)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	316 fastmap[tolower (ch)] = 1;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	317 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	318
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	319 /* Helper function for re_compile_fastmap.
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	320 Compile fastmap for the initial_state INIT_STATE. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	321
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	322 static void
6076 e2dd51f6e259 * config/srclist.txt: Add glibc bugs 1220, 1221, 1222. Paul Eggert <eggert@cs.ucla.edu> parents: 6071 diff changeset	323 re_compile_fastmap_iter (regex_t bufp, const re_dfastate_t init_state,
e2dd51f6e259 * config/srclist.txt: Add glibc bugs 1220, 1221, 1222. Paul Eggert <eggert@cs.ucla.edu> parents: 6071 diff changeset	324 char *fastmap)
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	325 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	326 re_dfa_t dfa = (re_dfa_t ) bufp->buffer;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	327 int node_cnt;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	328 int icase = (dfa->mb_cur_max == 1 && (bufp->syntax & RE_ICASE));
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	329 for (node_cnt = 0; node_cnt < init_state->nodes.nelem; ++node_cnt)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	330 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	331 int node = init_state->nodes.elems[node_cnt];
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	332 re_token_type_t type = dfa->nodes[node].type;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	333
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	334 if (type == CHARACTER)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	335 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	336 re_set_fastmap (fastmap, icase, dfa->nodes[node].opr.c);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	337 #ifdef RE_ENABLE_I18N
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	338 if ((bufp->syntax & RE_ICASE) && dfa->mb_cur_max > 1)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	339 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	340 unsigned char buf = alloca (dfa->mb_cur_max), p;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	341 wchar_t wc;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	342 mbstate_t state;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	343
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	344 p = buf;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	345 *p++ = dfa->nodes[node].opr.c;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	346 while (++node < dfa->nodes_len
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	347 && dfa->nodes[node].type == CHARACTER
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	348 && dfa->nodes[node].mb_partial)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	349 *p++ = dfa->nodes[node].opr.c;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	350 memset (&state, 0, sizeof (state));
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	351 if (mbrtowc (&wc, (const char *) buf, p - buf,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	352 &state) == p - buf
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	353 && (__wcrtomb ((char *) buf, towlower (wc), &state)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	354 != (size_t) -1))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	355 re_set_fastmap (fastmap, 0, buf[0]);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	356 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	357 #endif
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	358 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	359 else if (type == SIMPLE_BRACKET)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	360 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	361 int i, j, ch;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	362 for (i = 0, ch = 0; i < BITSET_UINTS; ++i)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	363 for (j = 0; j < UINT_BITS; ++j, ++ch)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	364 if (dfa->nodes[node].opr.sbcset[i] & (1 << j))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	365 re_set_fastmap (fastmap, icase, ch);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	366 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	367 #ifdef RE_ENABLE_I18N
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	368 else if (type == COMPLEX_BRACKET)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	369 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	370 int i;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	371 re_charset_t *cset = dfa->nodes[node].opr.mbcset;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	372 if (cset->non_match \|\| cset->ncoll_syms \|\| cset->nequiv_classes
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	373 \|\| cset->nranges \|\| cset->nchar_classes)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	374 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	375 # ifdef _LIBC
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	376 if (_NL_CURRENT_WORD (LC_COLLATE, _NL_COLLATE_NRULES) != 0)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	377 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	378 /* In this case we want to catch the bytes which are
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	379 the first byte of any collation elements.
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	380 e.g. In da_DK, we want to catch 'a' since "aa"
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	381 is a valid collation element, and don't catch
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	382 'b' since 'b' is the only collation element
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	383 which starts from 'b'. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	384 int j, ch;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	385 const int32_t table = (const int32_t )
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	386 _NL_CURRENT (LC_COLLATE, _NL_COLLATE_TABLEMB);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	387 for (i = 0, ch = 0; i < BITSET_UINTS; ++i)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	388 for (j = 0; j < UINT_BITS; ++j, ++ch)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	389 if (table[ch] < 0)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	390 re_set_fastmap (fastmap, icase, ch);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	391 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	392 # else
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	393 if (dfa->mb_cur_max > 1)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	394 for (i = 0; i < SBC_MAX; ++i)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	395 if (__btowc (i) == WEOF)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	396 re_set_fastmap (fastmap, icase, i);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	397 # endif /* not _LIBC */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	398 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	399 for (i = 0; i < cset->nmbchars; ++i)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	400 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	401 char buf[256];
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	402 mbstate_t state;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	403 memset (&state, '\0', sizeof (state));
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	404 if (__wcrtomb (buf, cset->mbchars[i], &state) != (size_t) -1)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	405 re_set_fastmap (fastmap, icase, (unsigned char ) buf);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	406 if ((bufp->syntax & RE_ICASE) && dfa->mb_cur_max > 1)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	407 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	408 if (__wcrtomb (buf, towlower (cset->mbchars[i]), &state)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	409 != (size_t) -1)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	410 re_set_fastmap (fastmap, 0, (unsigned char ) buf);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	411 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	412 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	413 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	414 #endif /* RE_ENABLE_I18N */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	415 else if (type == OP_PERIOD
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	416 #ifdef RE_ENABLE_I18N
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	417 \|\| type == OP_UTF8_PERIOD
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	418 #endif /* RE_ENABLE_I18N */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	419 \|\| type == END_OF_RE)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	420 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	421 memset (fastmap, '\1', sizeof (char) * SBC_MAX);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	422 if (type == END_OF_RE)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	423 bufp->can_be_null = 1;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	424 return;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	425 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	426 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	427 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	428
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	429 /* Entry point for POSIX code. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	430 /* regcomp takes a regular expression as a string and compiles it.
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	431
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	432 PREG is a regex_t *. We do not expect any fields to be initialized,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	433 since POSIX says we shouldn't. Thus, we set
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	434
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	435 `buffer' to the compiled pattern;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	436 `used' to the length of the compiled pattern;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	437 `syntax' to RE_SYNTAX_POSIX_EXTENDED if the
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	438 REG_EXTENDED bit in CFLAGS is set; otherwise, to
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	439 RE_SYNTAX_POSIX_BASIC;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	440 `newline_anchor' to REG_NEWLINE being set in CFLAGS;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	441 `fastmap' to an allocated space for the fastmap;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	442 `fastmap_accurate' to zero;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	443 `re_nsub' to the number of subexpressions in PATTERN.
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	444
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	445 PATTERN is the address of the pattern string.
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	446
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	447 CFLAGS is a series of bits which affect compilation.
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	448
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	449 If REG_EXTENDED is set, we use POSIX extended syntax; otherwise, we
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	450 use POSIX basic syntax.
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	451
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	452 If REG_NEWLINE is set, then . and [^...] don't match newline.
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	453 Also, regexec will try a match beginning after every newline.
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	454
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	455 If REG_ICASE is set, then we considers upper- and lowercase
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	456 versions of letters to be equivalent when matching.
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	457
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	458 If REG_NOSUB is set, then when PREG is passed to regexec, that
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	459 routine will report only success or failure, and nothing about the
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	460 registers.
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	461
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	462 It returns 0 if it succeeds, nonzero if it doesn't. (See regex.h for
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	463 the return codes and their meanings.) */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	464
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	465 int
6076 e2dd51f6e259 * config/srclist.txt: Add glibc bugs 1220, 1221, 1222. Paul Eggert <eggert@cs.ucla.edu> parents: 6071 diff changeset	466 regcomp (regex_t __restrict preg, const char __restrict pattern, int cflags)
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	467 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	468 reg_errcode_t ret;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	469 reg_syntax_t syntax = ((cflags & REG_EXTENDED) ? RE_SYNTAX_POSIX_EXTENDED
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	470 : RE_SYNTAX_POSIX_BASIC);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	471
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	472 preg->buffer = NULL;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	473 preg->allocated = 0;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	474 preg->used = 0;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	475
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	476 /* Try to allocate space for the fastmap. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	477 preg->fastmap = re_malloc (char, SBC_MAX);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	478 if (BE (preg->fastmap == NULL, 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	479 return REG_ESPACE;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	480
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	481 syntax \|= (cflags & REG_ICASE) ? RE_ICASE : 0;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	482
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	483 /* If REG_NEWLINE is set, newlines are treated differently. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	484 if (cflags & REG_NEWLINE)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	485 { /* REG_NEWLINE implies neither . nor [^...] match newline. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	486 syntax &= ~RE_DOT_NEWLINE;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	487 syntax \|= RE_HAT_LISTS_NOT_NEWLINE;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	488 /* It also changes the matching behavior. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	489 preg->newline_anchor = 1;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	490 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	491 else
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	492 preg->newline_anchor = 0;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	493 preg->no_sub = !!(cflags & REG_NOSUB);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	494 preg->translate = NULL;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	495
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	496 ret = re_compile_internal (preg, pattern, strlen (pattern), syntax);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	497
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	498 /* POSIX doesn't distinguish between an unmatched open-group and an
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	499 unmatched close-group: both are REG_EPAREN. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	500 if (ret == REG_ERPAREN)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	501 ret = REG_EPAREN;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	502
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	503 /* We have already checked preg->fastmap != NULL. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	504 if (BE (ret == REG_NOERROR, 1))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	505 /* Compute the fastmap now, since regexec cannot modify the pattern
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	506 buffer. This function never fails in this implementation. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	507 (void) re_compile_fastmap (preg);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	508 else
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	509 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	510 /* Some error occurred while compiling the expression. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	511 re_free (preg->fastmap);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	512 preg->fastmap = NULL;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	513 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	514
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	515 return (int) ret;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	516 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	517 #ifdef _LIBC
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	518 weak_alias (__regcomp, regcomp)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	519 #endif
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	520
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	521 /* Returns a message corresponding to an error code, ERRCODE, returned
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	522 from either regcomp or regexec. We don't use PREG here. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	523
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	524 size_t
6076 e2dd51f6e259 * config/srclist.txt: Add glibc bugs 1220, 1221, 1222. Paul Eggert <eggert@cs.ucla.edu> parents: 6071 diff changeset	525 regerror (int errcode, const regex_t preg, char errbuf, size_t errbuf_size)
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	526 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	527 const char *msg;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	528 size_t msg_size;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	529
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	530 if (BE (errcode < 0
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	531 \|\| errcode >= (int) (sizeof (__re_error_msgid_idx)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	532 / sizeof (__re_error_msgid_idx[0])), 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	533 /* Only error codes returned by the rest of the code should be passed
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	534 to this routine. If we are given anything else, or if other regex
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	535 code generates an invalid error code, then the program has a bug.
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	536 Dump core so we can fix it. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	537 abort ();
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	538
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	539 msg = gettext (__re_error_msgid + __re_error_msgid_idx[errcode]);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	540
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	541 msg_size = strlen (msg) + 1; /* Includes the null. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	542
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	543 if (BE (errbuf_size != 0, 1))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	544 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	545 if (BE (msg_size > errbuf_size, 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	546 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	547 #if defined HAVE_MEMPCPY \|\| defined _LIBC
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	548 ((char ) __mempcpy (errbuf, msg, errbuf_size - 1)) = '\0';
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	549 #else
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	550 memcpy (errbuf, msg, errbuf_size - 1);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	551 errbuf[errbuf_size - 1] = 0;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	552 #endif
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	553 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	554 else
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	555 memcpy (errbuf, msg, msg_size);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	556 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	557
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	558 return msg_size;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	559 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	560 #ifdef _LIBC
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	561 weak_alias (__regerror, regerror)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	562 #endif
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	563
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	564
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	565 #ifdef RE_ENABLE_I18N
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	566 /* This static array is used for the map to single-byte characters when
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	567 UTF-8 is used. Otherwise we would allocate memory just to initialize
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	568 it the same all the time. UTF-8 is the preferred encoding so this is
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	569 a worthwhile optimization. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	570 static const bitset utf8_sb_map =
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	571 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	572 /* Set the first 128 bits. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	573 # if UINT_MAX == 0xffffffff
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	574 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	575 # else
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	576 # error "Add case for new unsigned int size"
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	577 # endif
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	578 };
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	579 #endif
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	580
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	581
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	582 static void
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	583 free_dfa_content (re_dfa_t *dfa)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	584 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	585 int i, j;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	586
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	587 if (dfa->nodes)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	588 for (i = 0; i < dfa->nodes_len; ++i)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	589 free_token (dfa->nodes + i);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	590 re_free (dfa->nexts);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	591 for (i = 0; i < dfa->nodes_len; ++i)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	592 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	593 if (dfa->eclosures != NULL)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	594 re_node_set_free (dfa->eclosures + i);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	595 if (dfa->inveclosures != NULL)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	596 re_node_set_free (dfa->inveclosures + i);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	597 if (dfa->edests != NULL)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	598 re_node_set_free (dfa->edests + i);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	599 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	600 re_free (dfa->edests);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	601 re_free (dfa->eclosures);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	602 re_free (dfa->inveclosures);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	603 re_free (dfa->nodes);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	604
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	605 if (dfa->state_table)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	606 for (i = 0; i <= dfa->state_hash_mask; ++i)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	607 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	608 struct re_state_table_entry *entry = dfa->state_table + i;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	609 for (j = 0; j < entry->num; ++j)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	610 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	611 re_dfastate_t *state = entry->array[j];
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	612 free_state (state);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	613 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	614 re_free (entry->array);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	615 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	616 re_free (dfa->state_table);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	617 #ifdef RE_ENABLE_I18N
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	618 if (dfa->sb_char != utf8_sb_map)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	619 re_free (dfa->sb_char);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	620 #endif
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	621 re_free (dfa->subexp_map);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	622 #ifdef DEBUG
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	623 re_free (dfa->re_str);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	624 #endif
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	625
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	626 re_free (dfa);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	627 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	628
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	629
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	630 /* Free dynamically allocated space used by PREG. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	631
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	632 void
6076 e2dd51f6e259 * config/srclist.txt: Add glibc bugs 1220, 1221, 1222. Paul Eggert <eggert@cs.ucla.edu> parents: 6071 diff changeset	633 regfree (regex_t *preg)
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	634 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	635 re_dfa_t dfa = (re_dfa_t ) preg->buffer;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	636 if (BE (dfa != NULL, 1))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	637 free_dfa_content (dfa);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	638 preg->buffer = NULL;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	639 preg->allocated = 0;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	640
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	641 re_free (preg->fastmap);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	642 preg->fastmap = NULL;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	643
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	644 re_free (preg->translate);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	645 preg->translate = NULL;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	646 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	647 #ifdef _LIBC
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	648 weak_alias (__regfree, regfree)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	649 #endif
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	650
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	651 /* Entry points compatible with 4.2 BSD regex library. We don't define
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	652 them unless specifically requested. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	653
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	654 #if defined _REGEX_RE_COMP \|\| defined _LIBC
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	655
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	656 /* BSD has one and only one pattern buffer. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	657 static struct re_pattern_buffer re_comp_buf;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	658
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	659 char *
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	660 # ifdef _LIBC
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	661 /* Make these definitions weak in libc, so POSIX programs can redefine
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	662 these names if they don't use our functions, and still use
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	663 regcomp/regexec above without link errors. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	664 weak_function
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	665 # endif
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	666 re_comp (s)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	667 const char *s;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	668 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	669 reg_errcode_t ret;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	670 char *fastmap;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	671
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	672 if (!s)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	673 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	674 if (!re_comp_buf.buffer)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	675 return gettext ("No previous regular expression");
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	676 return 0;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	677 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	678
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	679 if (re_comp_buf.buffer)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	680 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	681 fastmap = re_comp_buf.fastmap;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	682 re_comp_buf.fastmap = NULL;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	683 __regfree (&re_comp_buf);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	684 memset (&re_comp_buf, '\0', sizeof (re_comp_buf));
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	685 re_comp_buf.fastmap = fastmap;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	686 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	687
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	688 if (re_comp_buf.fastmap == NULL)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	689 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	690 re_comp_buf.fastmap = (char *) malloc (SBC_MAX);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	691 if (re_comp_buf.fastmap == NULL)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	692 return (char *) gettext (__re_error_msgid
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	693 + __re_error_msgid_idx[(int) REG_ESPACE]);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	694 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	695
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	696 /* Since `re_exec' always passes NULL for the `regs' argument, we
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	697 don't need to initialize the pattern buffer fields which affect it. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	698
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	699 /* Match anchors at newlines. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	700 re_comp_buf.newline_anchor = 1;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	701
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	702 ret = re_compile_internal (&re_comp_buf, s, strlen (s), re_syntax_options);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	703
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	704 if (!ret)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	705 return NULL;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	706
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	707 /* Yes, we're discarding `const' here if !HAVE_LIBINTL. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	708 return (char *) gettext (__re_error_msgid + __re_error_msgid_idx[(int) ret]);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	709 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	710
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	711 #ifdef _LIBC
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	712 libc_freeres_fn (free_mem)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	713 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	714 __regfree (&re_comp_buf);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	715 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	716 #endif
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	717
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	718 #endif /* _REGEX_RE_COMP */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	719
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	720 /* Internal entry point.
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	721 Compile the regular expression PATTERN, whose length is LENGTH.
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	722 SYNTAX indicate regular expression's syntax. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	723
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	724 static reg_errcode_t
6076 e2dd51f6e259 * config/srclist.txt: Add glibc bugs 1220, 1221, 1222. Paul Eggert <eggert@cs.ucla.edu> parents: 6071 diff changeset	725 re_compile_internal (regex_t preg, const char pattern, int length,
e2dd51f6e259 * config/srclist.txt: Add glibc bugs 1220, 1221, 1222. Paul Eggert <eggert@cs.ucla.edu> parents: 6071 diff changeset	726 reg_syntax_t syntax)
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	727 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	728 reg_errcode_t err = REG_NOERROR;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	729 re_dfa_t *dfa;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	730 re_string_t regexp;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	731
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	732 /* Initialize the pattern buffer. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	733 preg->fastmap_accurate = 0;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	734 preg->syntax = syntax;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	735 preg->not_bol = preg->not_eol = 0;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	736 preg->used = 0;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	737 preg->re_nsub = 0;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	738 preg->can_be_null = 0;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	739 preg->regs_allocated = REGS_UNALLOCATED;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	740
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	741 /* Initialize the dfa. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	742 dfa = (re_dfa_t *) preg->buffer;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	743 if (BE (preg->allocated < sizeof (re_dfa_t), 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	744 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	745 /* If zero allocated, but buffer is non-null, try to realloc
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	746 enough space. This loses if buffer's address is bogus, but
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	747 that is the user's responsibility. If ->buffer is NULL this
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	748 is a simple allocation. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	749 dfa = re_realloc (preg->buffer, re_dfa_t, 1);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	750 if (dfa == NULL)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	751 return REG_ESPACE;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	752 preg->allocated = sizeof (re_dfa_t);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	753 preg->buffer = (unsigned char *) dfa;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	754 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	755 preg->used = sizeof (re_dfa_t);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	756
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	757 __libc_lock_init (dfa->lock);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	758
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	759 err = init_dfa (dfa, length);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	760 if (BE (err != REG_NOERROR, 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	761 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	762 free_dfa_content (dfa);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	763 preg->buffer = NULL;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	764 preg->allocated = 0;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	765 return err;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	766 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	767 #ifdef DEBUG
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	768 dfa->re_str = re_malloc (char, length + 1);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	769 strncpy (dfa->re_str, pattern, length + 1);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	770 #endif
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	771
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	772 err = re_string_construct (&regexp, pattern, length, preg->translate,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	773 syntax & RE_ICASE, dfa);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	774 if (BE (err != REG_NOERROR, 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	775 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	776 re_compile_internal_free_return:
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	777 free_workarea_compile (preg);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	778 re_string_destruct (&regexp);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	779 free_dfa_content (dfa);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	780 preg->buffer = NULL;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	781 preg->allocated = 0;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	782 return err;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	783 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	784
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	785 /* Parse the regular expression, and build a structure tree. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	786 preg->re_nsub = 0;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	787 dfa->str_tree = parse (&regexp, preg, syntax, &err);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	788 if (BE (dfa->str_tree == NULL, 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	789 goto re_compile_internal_free_return;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	790
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	791 /* Analyze the tree and create the nfa. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	792 err = analyze (preg);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	793 if (BE (err != REG_NOERROR, 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	794 goto re_compile_internal_free_return;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	795
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	796 #ifdef RE_ENABLE_I18N
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	797 /* If possible, do searching in single byte encoding to speed things up. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	798 if (dfa->is_utf8 && !(syntax & RE_ICASE) && preg->translate == NULL)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	799 optimize_utf8 (dfa);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	800 #endif
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	801
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	802 /* Then create the initial state of the dfa. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	803 err = create_initial_state (dfa);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	804
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	805 /* Release work areas. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	806 free_workarea_compile (preg);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	807 re_string_destruct (&regexp);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	808
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	809 if (BE (err != REG_NOERROR, 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	810 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	811 free_dfa_content (dfa);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	812 preg->buffer = NULL;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	813 preg->allocated = 0;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	814 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	815
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	816 return err;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	817 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	818
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	819 /* Initialize DFA. We use the length of the regular expression PAT_LEN
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	820 as the initial length of some arrays. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	821
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	822 static reg_errcode_t
6076 e2dd51f6e259 * config/srclist.txt: Add glibc bugs 1220, 1221, 1222. Paul Eggert <eggert@cs.ucla.edu> parents: 6071 diff changeset	823 init_dfa (re_dfa_t *dfa, int pat_len)
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	824 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	825 int table_size;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	826 #ifndef _LIBC
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	827 char *codeset_name;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	828 #endif
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	829
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	830 memset (dfa, '\0', sizeof (re_dfa_t));
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	831
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	832 /* Force allocation of str_tree_storage the first time. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	833 dfa->str_tree_storage_idx = BIN_TREE_STORAGE_SIZE;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	834
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	835 dfa->nodes_alloc = pat_len + 1;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	836 dfa->nodes = re_malloc (re_token_t, dfa->nodes_alloc);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	837
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	838 dfa->states_alloc = pat_len + 1;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	839
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	840 /* table_size = 2 ^ ceil(log pat_len) */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	841 for (table_size = 1; table_size > 0; table_size <<= 1)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	842 if (table_size > pat_len)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	843 break;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	844
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	845 dfa->state_table = calloc (sizeof (struct re_state_table_entry), table_size);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	846 dfa->state_hash_mask = table_size - 1;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	847
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	848 dfa->mb_cur_max = MB_CUR_MAX;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	849 #ifdef _LIBC
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	850 if (dfa->mb_cur_max == 6
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	851 && strcmp (_NL_CURRENT (LC_CTYPE, _NL_CTYPE_CODESET_NAME), "UTF-8") == 0)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	852 dfa->is_utf8 = 1;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	853 dfa->map_notascii = (_NL_CURRENT_WORD (LC_CTYPE, _NL_CTYPE_MAP_TO_NONASCII)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	854 != 0);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	855 #else
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	856 # ifdef HAVE_LANGINFO_CODESET
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	857 codeset_name = nl_langinfo (CODESET);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	858 # else
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	859 codeset_name = getenv ("LC_ALL");
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	860 if (codeset_name == NULL \|\| codeset_name[0] == '\0')
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	861 codeset_name = getenv ("LC_CTYPE");
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	862 if (codeset_name == NULL \|\| codeset_name[0] == '\0')
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	863 codeset_name = getenv ("LANG");
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	864 if (codeset_name == NULL)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	865 codeset_name = "";
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	866 else if (strchr (codeset_name, '.') != NULL)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	867 codeset_name = strchr (codeset_name, '.') + 1;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	868 # endif
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	869
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	870 if (strcasecmp (codeset_name, "UTF-8") == 0
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	871 \|\| strcasecmp (codeset_name, "UTF8") == 0)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	872 dfa->is_utf8 = 1;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	873
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	874 /* We check exhaustively in the loop below if this charset is a
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	875 superset of ASCII. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	876 dfa->map_notascii = 0;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	877 #endif
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	878
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	879 #ifdef RE_ENABLE_I18N
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	880 if (dfa->mb_cur_max > 1)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	881 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	882 if (dfa->is_utf8)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	883 dfa->sb_char = (re_bitset_ptr_t) utf8_sb_map;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	884 else
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	885 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	886 int i, j, ch;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	887
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	888 dfa->sb_char = (re_bitset_ptr_t) calloc (sizeof (bitset), 1);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	889 if (BE (dfa->sb_char == NULL, 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	890 return REG_ESPACE;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	891
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	892 /* Clear all bits by, then set those corresponding to single
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	893 byte chars. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	894 bitset_empty (dfa->sb_char);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	895
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	896 for (i = 0, ch = 0; i < BITSET_UINTS; ++i)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	897 for (j = 0; j < UINT_BITS; ++j, ++ch)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	898 {
5972 aa260da0bbbe * config/srclist.txt: Comment out regcomp.c, since we have a porting fix Paul Eggert <eggert@cs.ucla.edu> parents: 5968 diff changeset	899 wint_t wch = __btowc (ch);
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	900 if (wch != WEOF)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	901 dfa->sb_char[i] \|= 1 << j;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	902 # ifndef _LIBC
5972 aa260da0bbbe * config/srclist.txt: Comment out regcomp.c, since we have a porting fix Paul Eggert <eggert@cs.ucla.edu> parents: 5968 diff changeset	903 if (isascii (ch) && wch != ch)
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	904 dfa->map_notascii = 1;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	905 # endif
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	906 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	907 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	908 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	909 #endif
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	910
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	911 if (BE (dfa->nodes == NULL \|\| dfa->state_table == NULL, 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	912 return REG_ESPACE;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	913 return REG_NOERROR;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	914 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	915
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	916 /* Initialize WORD_CHAR table, which indicate which character is
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	917 "word". In this case "word" means that it is the word construction
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	918 character used by some operators like "\<", "\>", etc. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	919
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	920 static void
6076 e2dd51f6e259 * config/srclist.txt: Add glibc bugs 1220, 1221, 1222. Paul Eggert <eggert@cs.ucla.edu> parents: 6071 diff changeset	921 init_word_char (re_dfa_t *dfa)
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	922 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	923 int i, j, ch;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	924 dfa->word_ops_used = 1;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	925 for (i = 0, ch = 0; i < BITSET_UINTS; ++i)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	926 for (j = 0; j < UINT_BITS; ++j, ++ch)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	927 if (isalnum (ch) \|\| ch == '_')
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	928 dfa->word_char[i] \|= 1 << j;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	929 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	930
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	931 /* Free the work area which are only used while compiling. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	932
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	933 static void
6076 e2dd51f6e259 * config/srclist.txt: Add glibc bugs 1220, 1221, 1222. Paul Eggert <eggert@cs.ucla.edu> parents: 6071 diff changeset	934 free_workarea_compile (regex_t *preg)
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	935 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	936 re_dfa_t dfa = (re_dfa_t ) preg->buffer;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	937 bin_tree_storage_t storage, next;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	938 for (storage = dfa->str_tree_storage; storage; storage = next)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	939 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	940 next = storage->next;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	941 re_free (storage);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	942 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	943 dfa->str_tree_storage = NULL;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	944 dfa->str_tree_storage_idx = BIN_TREE_STORAGE_SIZE;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	945 dfa->str_tree = NULL;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	946 re_free (dfa->org_indices);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	947 dfa->org_indices = NULL;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	948 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	949
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	950 /* Create initial states for all contexts. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	951
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	952 static reg_errcode_t
6076 e2dd51f6e259 * config/srclist.txt: Add glibc bugs 1220, 1221, 1222. Paul Eggert <eggert@cs.ucla.edu> parents: 6071 diff changeset	953 create_initial_state (re_dfa_t *dfa)
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	954 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	955 int first, i;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	956 reg_errcode_t err;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	957 re_node_set init_nodes;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	958
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	959 /* Initial states have the epsilon closure of the node which is
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	960 the first node of the regular expression. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	961 first = dfa->str_tree->first->node_idx;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	962 dfa->init_node = first;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	963 err = re_node_set_init_copy (&init_nodes, dfa->eclosures + first);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	964 if (BE (err != REG_NOERROR, 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	965 return err;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	966
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	967 /* The back-references which are in initial states can epsilon transit,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	968 since in this case all of the subexpressions can be null.
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	969 Then we add epsilon closures of the nodes which are the next nodes of
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	970 the back-references. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	971 if (dfa->nbackref > 0)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	972 for (i = 0; i < init_nodes.nelem; ++i)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	973 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	974 int node_idx = init_nodes.elems[i];
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	975 re_token_type_t type = dfa->nodes[node_idx].type;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	976
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	977 int clexp_idx;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	978 if (type != OP_BACK_REF)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	979 continue;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	980 for (clexp_idx = 0; clexp_idx < init_nodes.nelem; ++clexp_idx)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	981 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	982 re_token_t *clexp_node;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	983 clexp_node = dfa->nodes + init_nodes.elems[clexp_idx];
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	984 if (clexp_node->type == OP_CLOSE_SUBEXP
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	985 && clexp_node->opr.idx == dfa->nodes[node_idx].opr.idx)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	986 break;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	987 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	988 if (clexp_idx == init_nodes.nelem)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	989 continue;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	990
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	991 if (type == OP_BACK_REF)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	992 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	993 int dest_idx = dfa->edests[node_idx].elems[0];
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	994 if (!re_node_set_contains (&init_nodes, dest_idx))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	995 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	996 re_node_set_merge (&init_nodes, dfa->eclosures + dest_idx);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	997 i = 0;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	998 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	999 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1000 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1001
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1002 /* It must be the first time to invoke acquire_state. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1003 dfa->init_state = re_acquire_state_context (&err, dfa, &init_nodes, 0);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1004 /* We don't check ERR here, since the initial state must not be NULL. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1005 if (BE (dfa->init_state == NULL, 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1006 return err;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1007 if (dfa->init_state->has_constraint)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1008 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1009 dfa->init_state_word = re_acquire_state_context (&err, dfa, &init_nodes,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1010 CONTEXT_WORD);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1011 dfa->init_state_nl = re_acquire_state_context (&err, dfa, &init_nodes,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1012 CONTEXT_NEWLINE);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1013 dfa->init_state_begbuf = re_acquire_state_context (&err, dfa,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1014 &init_nodes,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1015 CONTEXT_NEWLINE
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1016 \| CONTEXT_BEGBUF);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1017 if (BE (dfa->init_state_word == NULL \|\| dfa->init_state_nl == NULL
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1018 \|\| dfa->init_state_begbuf == NULL, 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1019 return err;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1020 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1021 else
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1022 dfa->init_state_word = dfa->init_state_nl
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1023 = dfa->init_state_begbuf = dfa->init_state;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1024
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1025 re_node_set_free (&init_nodes);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1026 return REG_NOERROR;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1027 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1028
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1029 #ifdef RE_ENABLE_I18N
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1030 /* If it is possible to do searching in single byte encoding instead of UTF-8
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1031 to speed things up, set dfa->mb_cur_max to 1, clear is_utf8 and change
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1032 DFA nodes where needed. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1033
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1034 static void
6076 e2dd51f6e259 * config/srclist.txt: Add glibc bugs 1220, 1221, 1222. Paul Eggert <eggert@cs.ucla.edu> parents: 6071 diff changeset	1035 optimize_utf8 (re_dfa_t *dfa)
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1036 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1037 int node, i, mb_chars = 0, has_period = 0;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1038
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1039 for (node = 0; node < dfa->nodes_len; ++node)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1040 switch (dfa->nodes[node].type)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1041 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1042 case CHARACTER:
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1043 if (dfa->nodes[node].opr.c >= 0x80)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1044 mb_chars = 1;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1045 break;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1046 case ANCHOR:
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1047 switch (dfa->nodes[node].opr.idx)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1048 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1049 case LINE_FIRST:
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1050 case LINE_LAST:
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1051 case BUF_FIRST:
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1052 case BUF_LAST:
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1053 break;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1054 default:
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1055 /* Word anchors etc. cannot be handled. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1056 return;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1057 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1058 break;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1059 case OP_PERIOD:
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1060 has_period = 1;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1061 break;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1062 case OP_BACK_REF:
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1063 case OP_ALT:
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1064 case END_OF_RE:
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1065 case OP_DUP_ASTERISK:
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1066 case OP_OPEN_SUBEXP:
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1067 case OP_CLOSE_SUBEXP:
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1068 break;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1069 case COMPLEX_BRACKET:
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1070 return;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1071 case SIMPLE_BRACKET:
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1072 /* Just double check. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1073 for (i = 0x80 / UINT_BITS; i < BITSET_UINTS; ++i)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1074 if (dfa->nodes[node].opr.sbcset[i])
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1075 return;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1076 break;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1077 default:
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1078 abort ();
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1079 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1080
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1081 if (mb_chars \|\| has_period)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1082 for (node = 0; node < dfa->nodes_len; ++node)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1083 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1084 if (dfa->nodes[node].type == CHARACTER
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1085 && dfa->nodes[node].opr.c >= 0x80)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1086 dfa->nodes[node].mb_partial = 0;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1087 else if (dfa->nodes[node].type == OP_PERIOD)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1088 dfa->nodes[node].type = OP_UTF8_PERIOD;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1089 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1090
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1091 /* The search can be in single byte locale. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1092 dfa->mb_cur_max = 1;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1093 dfa->is_utf8 = 0;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1094 dfa->has_mb_node = dfa->nbackref > 0 \|\| has_period;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1095 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1096 #endif
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1097
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1098 /* Analyze the structure tree, and calculate "first", "next", "edest",
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1099 "eclosure", and "inveclosure". */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1100
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1101 static reg_errcode_t
6076 e2dd51f6e259 * config/srclist.txt: Add glibc bugs 1220, 1221, 1222. Paul Eggert <eggert@cs.ucla.edu> parents: 6071 diff changeset	1102 analyze (regex_t *preg)
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1103 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1104 re_dfa_t dfa = (re_dfa_t ) preg->buffer;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1105 reg_errcode_t ret;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1106
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1107 /* Allocate arrays. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1108 dfa->nexts = re_malloc (int, dfa->nodes_alloc);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1109 dfa->org_indices = re_malloc (int, dfa->nodes_alloc);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1110 dfa->edests = re_malloc (re_node_set, dfa->nodes_alloc);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1111 dfa->eclosures = re_malloc (re_node_set, dfa->nodes_alloc);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1112 if (BE (dfa->nexts == NULL \|\| dfa->org_indices == NULL \|\| dfa->edests == NULL
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1113 \|\| dfa->eclosures == NULL, 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1114 return REG_ESPACE;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1115
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1116 dfa->subexp_map = re_malloc (int, preg->re_nsub);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1117 if (dfa->subexp_map != NULL)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1118 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1119 int i;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1120 for (i = 0; i < preg->re_nsub; i++)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1121 dfa->subexp_map[i] = i;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1122 preorder (dfa->str_tree, optimize_subexps, dfa);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1123 for (i = 0; i < preg->re_nsub; i++)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1124 if (dfa->subexp_map[i] != i)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1125 break;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1126 if (i == preg->re_nsub)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1127 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1128 free (dfa->subexp_map);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1129 dfa->subexp_map = NULL;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1130 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1131 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1132
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1133 ret = postorder (dfa->str_tree, lower_subexps, preg);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1134 if (BE (ret != REG_NOERROR, 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1135 return ret;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1136 ret = postorder (dfa->str_tree, calc_first, dfa);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1137 if (BE (ret != REG_NOERROR, 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1138 return ret;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1139 preorder (dfa->str_tree, calc_next, dfa);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1140 ret = preorder (dfa->str_tree, link_nfa_nodes, dfa);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1141 if (BE (ret != REG_NOERROR, 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1142 return ret;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1143 ret = calc_eclosure (dfa);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1144 if (BE (ret != REG_NOERROR, 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1145 return ret;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1146
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1147 /* We only need this during the prune_impossible_nodes pass in regexec.c;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1148 skip it if p_i_n will not run, as calc_inveclosure can be quadratic. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1149 if ((!preg->no_sub && preg->re_nsub > 0 && dfa->has_plural_match)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1150 \|\| dfa->nbackref)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1151 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1152 dfa->inveclosures = re_malloc (re_node_set, dfa->nodes_len);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1153 if (BE (dfa->inveclosures == NULL, 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1154 return REG_ESPACE;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1155 ret = calc_inveclosure (dfa);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1156 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1157
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1158 return ret;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1159 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1160
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1161 /* Our parse trees are very unbalanced, so we cannot use a stack to
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1162 implement parse tree visits. Instead, we use parent pointers and
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1163 some hairy code in these two functions. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1164 static reg_errcode_t
6076 e2dd51f6e259 * config/srclist.txt: Add glibc bugs 1220, 1221, 1222. Paul Eggert <eggert@cs.ucla.edu> parents: 6071 diff changeset	1165 postorder (bin_tree_t root, reg_errcode_t (fn (void , bin_tree_t *)),
e2dd51f6e259 * config/srclist.txt: Add glibc bugs 1220, 1221, 1222. Paul Eggert <eggert@cs.ucla.edu> parents: 6071 diff changeset	1166 void *extra)
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1167 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1168 bin_tree_t node, prev;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1169
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1170 for (node = root; ; )
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1171 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1172 /* Descend down the tree, preferably to the left (or to the right
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1173 if that's the only child). */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1174 while (node->left \|\| node->right)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1175 if (node->left)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1176 node = node->left;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1177 else
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1178 node = node->right;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1179
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1180 do
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1181 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1182 reg_errcode_t err = fn (extra, node);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1183 if (BE (err != REG_NOERROR, 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1184 return err;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1185 if (node->parent == NULL)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1186 return REG_NOERROR;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1187 prev = node;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1188 node = node->parent;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1189 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1190 /* Go up while we have a node that is reached from the right. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1191 while (node->right == prev \|\| node->right == NULL);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1192 node = node->right;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1193 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1194 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1195
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1196 static reg_errcode_t
6076 e2dd51f6e259 * config/srclist.txt: Add glibc bugs 1220, 1221, 1222. Paul Eggert <eggert@cs.ucla.edu> parents: 6071 diff changeset	1197 preorder (bin_tree_t root, reg_errcode_t (fn (void , bin_tree_t *)),
e2dd51f6e259 * config/srclist.txt: Add glibc bugs 1220, 1221, 1222. Paul Eggert <eggert@cs.ucla.edu> parents: 6071 diff changeset	1198 void *extra)
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1199 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1200 bin_tree_t *node;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1201
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1202 for (node = root; ; )
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1203 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1204 reg_errcode_t err = fn (extra, node);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1205 if (BE (err != REG_NOERROR, 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1206 return err;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1207
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1208 /* Go to the left node, or up and to the right. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1209 if (node->left)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1210 node = node->left;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1211 else
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1212 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1213 bin_tree_t *prev = NULL;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1214 while (node->right == prev \|\| node->right == NULL)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1215 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1216 prev = node;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1217 node = node->parent;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1218 if (!node)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1219 return REG_NOERROR;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1220 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1221 node = node->right;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1222 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1223 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1224 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1225
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1226 /* Optimization pass: if a SUBEXP is entirely contained, strip it and tell
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1227 re_search_internal to map the inner one's opr.idx to this one's. Adjust
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1228 backreferences as well. Requires a preorder visit. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1229 static reg_errcode_t
6076 e2dd51f6e259 * config/srclist.txt: Add glibc bugs 1220, 1221, 1222. Paul Eggert <eggert@cs.ucla.edu> parents: 6071 diff changeset	1230 optimize_subexps (void extra, bin_tree_t node)
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1231 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1232 re_dfa_t dfa = (re_dfa_t ) extra;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1233
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1234 if (node->token.type == OP_BACK_REF && dfa->subexp_map)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1235 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1236 int idx = node->token.opr.idx;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1237 node->token.opr.idx = dfa->subexp_map[idx];
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1238 dfa->used_bkref_map \|= 1 << node->token.opr.idx;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1239 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1240
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1241 else if (node->token.type == SUBEXP
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1242 && node->left && node->left->token.type == SUBEXP)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1243 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1244 int other_idx = node->left->token.opr.idx;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1245
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1246 node->left = node->left->left;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1247 if (node->left)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1248 node->left->parent = node;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1249
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1250 dfa->subexp_map[other_idx] = dfa->subexp_map[node->token.opr.idx];
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1251 if (other_idx < 8 * sizeof (dfa->used_bkref_map))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1252 dfa->used_bkref_map &= ~(1 << other_idx);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1253 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1254
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1255 return REG_NOERROR;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1256 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1257
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1258 /* Lowering pass: Turn each SUBEXP node into the appropriate concatenation
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1259 of OP_OPEN_SUBEXP, the body of the SUBEXP (if any) and OP_CLOSE_SUBEXP. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1260 static reg_errcode_t
6076 e2dd51f6e259 * config/srclist.txt: Add glibc bugs 1220, 1221, 1222. Paul Eggert <eggert@cs.ucla.edu> parents: 6071 diff changeset	1261 lower_subexps (void extra, bin_tree_t node)
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1262 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1263 regex_t preg = (regex_t ) extra;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1264 reg_errcode_t err = REG_NOERROR;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1265
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1266 if (node->left && node->left->token.type == SUBEXP)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1267 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1268 node->left = lower_subexp (&err, preg, node->left);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1269 if (node->left)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1270 node->left->parent = node;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1271 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1272 if (node->right && node->right->token.type == SUBEXP)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1273 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1274 node->right = lower_subexp (&err, preg, node->right);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1275 if (node->right)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1276 node->right->parent = node;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1277 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1278
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1279 return err;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1280 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1281
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1282 static bin_tree_t *
6076 e2dd51f6e259 * config/srclist.txt: Add glibc bugs 1220, 1221, 1222. Paul Eggert <eggert@cs.ucla.edu> parents: 6071 diff changeset	1283 lower_subexp (reg_errcode_t err, regex_t preg, bin_tree_t *node)
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1284 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1285 re_dfa_t dfa = (re_dfa_t ) preg->buffer;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1286 bin_tree_t *body = node->left;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1287 bin_tree_t op, cls, tree1, tree;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1288
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1289 if (preg->no_sub
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1290 /* We do not optimize empty subexpressions, because otherwise we may
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1291 have bad CONCAT nodes with NULL children. This is obviously not
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1292 very common, so we do not lose much. An example that triggers
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1293 this case is the sed "script" //x. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1294 && node->left != NULL
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1295 && (node->token.opr.idx >= 8 * sizeof (dfa->used_bkref_map)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1296 \|\| !(dfa->used_bkref_map & (1 << node->token.opr.idx))))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1297 return node->left;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1298
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1299 /* Convert the SUBEXP node to the concatenation of an
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1300 OP_OPEN_SUBEXP, the contents, and an OP_CLOSE_SUBEXP. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1301 op = create_tree (dfa, NULL, NULL, OP_OPEN_SUBEXP);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1302 cls = create_tree (dfa, NULL, NULL, OP_CLOSE_SUBEXP);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1303 tree1 = body ? create_tree (dfa, body, cls, CONCAT) : cls;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1304 tree = create_tree (dfa, op, tree1, CONCAT);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1305 if (BE (tree == NULL \|\| tree1 == NULL \|\| op == NULL \|\| cls == NULL, 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1306 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1307 *err = REG_ESPACE;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1308 return NULL;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1309 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1310
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1311 op->token.opr.idx = cls->token.opr.idx = node->token.opr.idx;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1312 op->token.opt_subexp = cls->token.opt_subexp = node->token.opt_subexp;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1313 return tree;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1314 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1315
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1316 /* Pass 1 in building the NFA: compute FIRST and create unlinked automaton
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1317 nodes. Requires a postorder visit. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1318 static reg_errcode_t
6076 e2dd51f6e259 * config/srclist.txt: Add glibc bugs 1220, 1221, 1222. Paul Eggert <eggert@cs.ucla.edu> parents: 6071 diff changeset	1319 calc_first (void extra, bin_tree_t node)
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1320 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1321 re_dfa_t dfa = (re_dfa_t ) extra;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1322 if (node->token.type == CONCAT)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1323 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1324 node->first = node->left->first;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1325 node->node_idx = node->left->node_idx;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1326 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1327 else
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1328 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1329 node->first = node;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1330 node->node_idx = re_dfa_add_node (dfa, node->token);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1331 if (BE (node->node_idx == -1, 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1332 return REG_ESPACE;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1333 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1334 return REG_NOERROR;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1335 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1336
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1337 /* Pass 2: compute NEXT on the tree. Preorder visit. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1338 static reg_errcode_t
6076 e2dd51f6e259 * config/srclist.txt: Add glibc bugs 1220, 1221, 1222. Paul Eggert <eggert@cs.ucla.edu> parents: 6071 diff changeset	1339 calc_next (void extra, bin_tree_t node)
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1340 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1341 switch (node->token.type)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1342 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1343 case OP_DUP_ASTERISK:
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1344 node->left->next = node;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1345 break;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1346 case CONCAT:
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1347 node->left->next = node->right->first;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1348 node->right->next = node->next;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1349 break;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1350 default:
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1351 if (node->left)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1352 node->left->next = node->next;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1353 if (node->right)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1354 node->right->next = node->next;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1355 break;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1356 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1357 return REG_NOERROR;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1358 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1359
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1360 /* Pass 3: link all DFA nodes to their NEXT node (any order will do). */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1361 static reg_errcode_t
6076 e2dd51f6e259 * config/srclist.txt: Add glibc bugs 1220, 1221, 1222. Paul Eggert <eggert@cs.ucla.edu> parents: 6071 diff changeset	1362 link_nfa_nodes (void extra, bin_tree_t node)
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1363 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1364 re_dfa_t dfa = (re_dfa_t ) extra;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1365 int idx = node->node_idx;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1366 reg_errcode_t err = REG_NOERROR;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1367
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1368 switch (node->token.type)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1369 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1370 case CONCAT:
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1371 break;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1372
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1373 case END_OF_RE:
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1374 assert (node->next == NULL);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1375 break;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1376
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1377 case OP_DUP_ASTERISK:
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1378 case OP_ALT:
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1379 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1380 int left, right;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1381 dfa->has_plural_match = 1;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1382 if (node->left != NULL)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1383 left = node->left->first->node_idx;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1384 else
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1385 left = node->next->node_idx;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1386 if (node->right != NULL)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1387 right = node->right->first->node_idx;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1388 else
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1389 right = node->next->node_idx;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1390 assert (left > -1);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1391 assert (right > -1);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1392 err = re_node_set_init_2 (dfa->edests + idx, left, right);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1393 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1394 break;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1395
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1396 case ANCHOR:
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1397 case OP_OPEN_SUBEXP:
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1398 case OP_CLOSE_SUBEXP:
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1399 err = re_node_set_init_1 (dfa->edests + idx, node->next->node_idx);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1400 break;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1401
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1402 case OP_BACK_REF:
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1403 dfa->nexts[idx] = node->next->node_idx;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1404 if (node->token.type == OP_BACK_REF)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1405 re_node_set_init_1 (dfa->edests + idx, dfa->nexts[idx]);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1406 break;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1407
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1408 default:
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1409 assert (!IS_EPSILON_NODE (node->token.type));
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1410 dfa->nexts[idx] = node->next->node_idx;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1411 break;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1412 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1413
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1414 return err;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1415 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1416
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1417 /* Duplicate the epsilon closure of the node ROOT_NODE.
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1418 Note that duplicated nodes have constraint INIT_CONSTRAINT in addition
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1419 to their own constraint. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1420
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1421 static reg_errcode_t
6076 e2dd51f6e259 * config/srclist.txt: Add glibc bugs 1220, 1221, 1222. Paul Eggert <eggert@cs.ucla.edu> parents: 6071 diff changeset	1422 duplicate_node_closure (re_dfa_t *dfa, int top_org_node, int top_clone_node,
e2dd51f6e259 * config/srclist.txt: Add glibc bugs 1220, 1221, 1222. Paul Eggert <eggert@cs.ucla.edu> parents: 6071 diff changeset	1423 int root_node, unsigned int init_constraint)
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1424 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1425 int org_node, clone_node, ret;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1426 unsigned int constraint = init_constraint;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1427 for (org_node = top_org_node, clone_node = top_clone_node;;)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1428 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1429 int org_dest, clone_dest;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1430 if (dfa->nodes[org_node].type == OP_BACK_REF)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1431 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1432 /* If the back reference epsilon-transit, its destination must
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1433 also have the constraint. Then duplicate the epsilon closure
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1434 of the destination of the back reference, and store it in
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1435 edests of the back reference. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1436 org_dest = dfa->nexts[org_node];
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1437 re_node_set_empty (dfa->edests + clone_node);
6071 c1760162e42f (duplicate_node): Return new index, not an error code, Paul Eggert <eggert@cs.ucla.edu> parents: 5972 diff changeset	1438 clone_dest = duplicate_node (dfa, org_dest, constraint);
c1760162e42f (duplicate_node): Return new index, not an error code, Paul Eggert <eggert@cs.ucla.edu> parents: 5972 diff changeset	1439 if (BE (clone_dest == -1, 0))
c1760162e42f (duplicate_node): Return new index, not an error code, Paul Eggert <eggert@cs.ucla.edu> parents: 5972 diff changeset	1440 return REG_ESPACE;
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1441 dfa->nexts[clone_node] = dfa->nexts[org_node];
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1442 ret = re_node_set_insert (dfa->edests + clone_node, clone_dest);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1443 if (BE (ret < 0, 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1444 return REG_ESPACE;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1445 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1446 else if (dfa->edests[org_node].nelem == 0)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1447 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1448 /* In case of the node can't epsilon-transit, don't duplicate the
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1449 destination and store the original destination as the
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1450 destination of the node. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1451 dfa->nexts[clone_node] = dfa->nexts[org_node];
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1452 break;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1453 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1454 else if (dfa->edests[org_node].nelem == 1)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1455 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1456 /* In case of the node can epsilon-transit, and it has only one
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1457 destination. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1458 org_dest = dfa->edests[org_node].elems[0];
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1459 re_node_set_empty (dfa->edests + clone_node);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1460 if (dfa->nodes[org_node].type == ANCHOR)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1461 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1462 /* In case of the node has another constraint, append it. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1463 if (org_node == root_node && clone_node != org_node)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1464 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1465 /* ...but if the node is root_node itself, it means the
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1466 epsilon closure have a loop, then tie it to the
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1467 destination of the root_node. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1468 ret = re_node_set_insert (dfa->edests + clone_node,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1469 org_dest);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1470 if (BE (ret < 0, 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1471 return REG_ESPACE;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1472 break;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1473 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1474 constraint \|= dfa->nodes[org_node].opr.ctx_type;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1475 }
6071 c1760162e42f (duplicate_node): Return new index, not an error code, Paul Eggert <eggert@cs.ucla.edu> parents: 5972 diff changeset	1476 clone_dest = duplicate_node (dfa, org_dest, constraint);
c1760162e42f (duplicate_node): Return new index, not an error code, Paul Eggert <eggert@cs.ucla.edu> parents: 5972 diff changeset	1477 if (BE (clone_dest == -1, 0))
c1760162e42f (duplicate_node): Return new index, not an error code, Paul Eggert <eggert@cs.ucla.edu> parents: 5972 diff changeset	1478 return REG_ESPACE;
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1479 ret = re_node_set_insert (dfa->edests + clone_node, clone_dest);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1480 if (BE (ret < 0, 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1481 return REG_ESPACE;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1482 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1483 else /* dfa->edests[org_node].nelem == 2 */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1484 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1485 /* In case of the node can epsilon-transit, and it has two
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1486 destinations. In the bin_tree_t and DFA, that's '\|' and ''. /
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1487 org_dest = dfa->edests[org_node].elems[0];
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1488 re_node_set_empty (dfa->edests + clone_node);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1489 /* Search for a duplicated node which satisfies the constraint. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1490 clone_dest = search_duplicated_node (dfa, org_dest, constraint);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1491 if (clone_dest == -1)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1492 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1493 /* There are no such a duplicated node, create a new one. */
6071 c1760162e42f (duplicate_node): Return new index, not an error code, Paul Eggert <eggert@cs.ucla.edu> parents: 5972 diff changeset	1494 reg_errcode_t err;
c1760162e42f (duplicate_node): Return new index, not an error code, Paul Eggert <eggert@cs.ucla.edu> parents: 5972 diff changeset	1495 clone_dest = duplicate_node (dfa, org_dest, constraint);
c1760162e42f (duplicate_node): Return new index, not an error code, Paul Eggert <eggert@cs.ucla.edu> parents: 5972 diff changeset	1496 if (BE (clone_dest == -1, 0))
c1760162e42f (duplicate_node): Return new index, not an error code, Paul Eggert <eggert@cs.ucla.edu> parents: 5972 diff changeset	1497 return REG_ESPACE;
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1498 ret = re_node_set_insert (dfa->edests + clone_node, clone_dest);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1499 if (BE (ret < 0, 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1500 return REG_ESPACE;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1501 err = duplicate_node_closure (dfa, org_dest, clone_dest,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1502 root_node, constraint);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1503 if (BE (err != REG_NOERROR, 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1504 return err;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1505 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1506 else
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1507 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1508 /* There are a duplicated node which satisfy the constraint,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1509 use it to avoid infinite loop. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1510 ret = re_node_set_insert (dfa->edests + clone_node, clone_dest);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1511 if (BE (ret < 0, 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1512 return REG_ESPACE;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1513 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1514
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1515 org_dest = dfa->edests[org_node].elems[1];
6071 c1760162e42f (duplicate_node): Return new index, not an error code, Paul Eggert <eggert@cs.ucla.edu> parents: 5972 diff changeset	1516 clone_dest = duplicate_node (dfa, org_dest, constraint);
c1760162e42f (duplicate_node): Return new index, not an error code, Paul Eggert <eggert@cs.ucla.edu> parents: 5972 diff changeset	1517 if (BE (clone_dest == -1, 0))
c1760162e42f (duplicate_node): Return new index, not an error code, Paul Eggert <eggert@cs.ucla.edu> parents: 5972 diff changeset	1518 return REG_ESPACE;
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1519 ret = re_node_set_insert (dfa->edests + clone_node, clone_dest);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1520 if (BE (ret < 0, 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1521 return REG_ESPACE;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1522 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1523 org_node = org_dest;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1524 clone_node = clone_dest;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1525 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1526 return REG_NOERROR;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1527 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1528
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1529 /* Search for a node which is duplicated from the node ORG_NODE, and
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1530 satisfies the constraint CONSTRAINT. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1531
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1532 static int
6076 e2dd51f6e259 * config/srclist.txt: Add glibc bugs 1220, 1221, 1222. Paul Eggert <eggert@cs.ucla.edu> parents: 6071 diff changeset	1533 search_duplicated_node (re_dfa_t *dfa, int org_node, unsigned int constraint)
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1534 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1535 int idx;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1536 for (idx = dfa->nodes_len - 1; dfa->nodes[idx].duplicated && idx > 0; --idx)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1537 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1538 if (org_node == dfa->org_indices[idx]
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1539 && constraint == dfa->nodes[idx].constraint)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1540 return idx; /* Found. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1541 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1542 return -1; /* Not found. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1543 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1544
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1545 /* Duplicate the node whose index is ORG_IDX and set the constraint CONSTRAINT.
6071 c1760162e42f (duplicate_node): Return new index, not an error code, Paul Eggert <eggert@cs.ucla.edu> parents: 5972 diff changeset	1546 Return the index of the new node, or -1 if insufficient storage is
c1760162e42f (duplicate_node): Return new index, not an error code, Paul Eggert <eggert@cs.ucla.edu> parents: 5972 diff changeset	1547 available. */
c1760162e42f (duplicate_node): Return new index, not an error code, Paul Eggert <eggert@cs.ucla.edu> parents: 5972 diff changeset	1548
c1760162e42f (duplicate_node): Return new index, not an error code, Paul Eggert <eggert@cs.ucla.edu> parents: 5972 diff changeset	1549 static int
6076 e2dd51f6e259 * config/srclist.txt: Add glibc bugs 1220, 1221, 1222. Paul Eggert <eggert@cs.ucla.edu> parents: 6071 diff changeset	1550 duplicate_node (re_dfa_t *dfa, int org_idx, unsigned int constraint)
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1551 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1552 int dup_idx = re_dfa_add_node (dfa, dfa->nodes[org_idx]);
6071 c1760162e42f (duplicate_node): Return new index, not an error code, Paul Eggert <eggert@cs.ucla.edu> parents: 5972 diff changeset	1553 if (BE (dup_idx != -1, 1))
c1760162e42f (duplicate_node): Return new index, not an error code, Paul Eggert <eggert@cs.ucla.edu> parents: 5972 diff changeset	1554 {
c1760162e42f (duplicate_node): Return new index, not an error code, Paul Eggert <eggert@cs.ucla.edu> parents: 5972 diff changeset	1555 dfa->nodes[dup_idx].constraint = constraint;
c1760162e42f (duplicate_node): Return new index, not an error code, Paul Eggert <eggert@cs.ucla.edu> parents: 5972 diff changeset	1556 if (dfa->nodes[org_idx].type == ANCHOR)
c1760162e42f (duplicate_node): Return new index, not an error code, Paul Eggert <eggert@cs.ucla.edu> parents: 5972 diff changeset	1557 dfa->nodes[dup_idx].constraint \|= dfa->nodes[org_idx].opr.ctx_type;
c1760162e42f (duplicate_node): Return new index, not an error code, Paul Eggert <eggert@cs.ucla.edu> parents: 5972 diff changeset	1558 dfa->nodes[dup_idx].duplicated = 1;
c1760162e42f (duplicate_node): Return new index, not an error code, Paul Eggert <eggert@cs.ucla.edu> parents: 5972 diff changeset	1559
c1760162e42f (duplicate_node): Return new index, not an error code, Paul Eggert <eggert@cs.ucla.edu> parents: 5972 diff changeset	1560 /* Store the index of the original node. */
c1760162e42f (duplicate_node): Return new index, not an error code, Paul Eggert <eggert@cs.ucla.edu> parents: 5972 diff changeset	1561 dfa->org_indices[dup_idx] = org_idx;
c1760162e42f (duplicate_node): Return new index, not an error code, Paul Eggert <eggert@cs.ucla.edu> parents: 5972 diff changeset	1562 }
c1760162e42f (duplicate_node): Return new index, not an error code, Paul Eggert <eggert@cs.ucla.edu> parents: 5972 diff changeset	1563 return dup_idx;
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1564 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1565
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1566 static reg_errcode_t
6076 e2dd51f6e259 * config/srclist.txt: Add glibc bugs 1220, 1221, 1222. Paul Eggert <eggert@cs.ucla.edu> parents: 6071 diff changeset	1567 calc_inveclosure (re_dfa_t *dfa)
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1568 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1569 int src, idx, ret;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1570 for (idx = 0; idx < dfa->nodes_len; ++idx)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1571 re_node_set_init_empty (dfa->inveclosures + idx);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1572
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1573 for (src = 0; src < dfa->nodes_len; ++src)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1574 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1575 int *elems = dfa->eclosures[src].elems;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1576 for (idx = 0; idx < dfa->eclosures[src].nelem; ++idx)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1577 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1578 ret = re_node_set_insert_last (dfa->inveclosures + elems[idx], src);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1579 if (BE (ret == -1, 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1580 return REG_ESPACE;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1581 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1582 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1583
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1584 return REG_NOERROR;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1585 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1586
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1587 /* Calculate "eclosure" for all the node in DFA. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1588
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1589 static reg_errcode_t
6076 e2dd51f6e259 * config/srclist.txt: Add glibc bugs 1220, 1221, 1222. Paul Eggert <eggert@cs.ucla.edu> parents: 6071 diff changeset	1590 calc_eclosure (re_dfa_t *dfa)
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1591 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1592 int node_idx, incomplete;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1593 #ifdef DEBUG
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1594 assert (dfa->nodes_len > 0);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1595 #endif
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1596 incomplete = 0;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1597 /* For each nodes, calculate epsilon closure. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1598 for (node_idx = 0; ; ++node_idx)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1599 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1600 reg_errcode_t err;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1601 re_node_set eclosure_elem;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1602 if (node_idx == dfa->nodes_len)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1603 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1604 if (!incomplete)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1605 break;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1606 incomplete = 0;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1607 node_idx = 0;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1608 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1609
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1610 #ifdef DEBUG
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1611 assert (dfa->eclosures[node_idx].nelem != -1);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1612 #endif
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1613
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1614 /* If we have already calculated, skip it. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1615 if (dfa->eclosures[node_idx].nelem != 0)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1616 continue;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1617 /* Calculate epsilon closure of `node_idx'. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1618 err = calc_eclosure_iter (&eclosure_elem, dfa, node_idx, 1);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1619 if (BE (err != REG_NOERROR, 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1620 return err;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1621
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1622 if (dfa->eclosures[node_idx].nelem == 0)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1623 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1624 incomplete = 1;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1625 re_node_set_free (&eclosure_elem);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1626 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1627 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1628 return REG_NOERROR;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1629 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1630
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1631 /* Calculate epsilon closure of NODE. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1632
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1633 static reg_errcode_t
6076 e2dd51f6e259 * config/srclist.txt: Add glibc bugs 1220, 1221, 1222. Paul Eggert <eggert@cs.ucla.edu> parents: 6071 diff changeset	1634 calc_eclosure_iter (re_node_set new_set, re_dfa_t dfa, int node, int root)
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1635 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1636 reg_errcode_t err;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1637 unsigned int constraint;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1638 int i, incomplete;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1639 re_node_set eclosure;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1640 incomplete = 0;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1641 err = re_node_set_alloc (&eclosure, dfa->edests[node].nelem + 1);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1642 if (BE (err != REG_NOERROR, 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1643 return err;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1644
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1645 /* This indicates that we are calculating this node now.
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1646 We reference this value to avoid infinite loop. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1647 dfa->eclosures[node].nelem = -1;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1648
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1649 constraint = ((dfa->nodes[node].type == ANCHOR)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1650 ? dfa->nodes[node].opr.ctx_type : 0);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1651 /* If the current node has constraints, duplicate all nodes.
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1652 Since they must inherit the constraints. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1653 if (constraint
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1654 && dfa->edests[node].nelem
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1655 && !dfa->nodes[dfa->edests[node].elems[0]].duplicated)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1656 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1657 int org_node, cur_node;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1658 org_node = cur_node = node;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1659 err = duplicate_node_closure (dfa, node, node, node, constraint);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1660 if (BE (err != REG_NOERROR, 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1661 return err;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1662 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1663
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1664 /* Expand each epsilon destination nodes. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1665 if (IS_EPSILON_NODE(dfa->nodes[node].type))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1666 for (i = 0; i < dfa->edests[node].nelem; ++i)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1667 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1668 re_node_set eclosure_elem;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1669 int edest = dfa->edests[node].elems[i];
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1670 /* If calculating the epsilon closure of `edest' is in progress,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1671 return intermediate result. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1672 if (dfa->eclosures[edest].nelem == -1)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1673 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1674 incomplete = 1;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1675 continue;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1676 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1677 /* If we haven't calculated the epsilon closure of `edest' yet,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1678 calculate now. Otherwise use calculated epsilon closure. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1679 if (dfa->eclosures[edest].nelem == 0)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1680 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1681 err = calc_eclosure_iter (&eclosure_elem, dfa, edest, 0);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1682 if (BE (err != REG_NOERROR, 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1683 return err;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1684 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1685 else
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1686 eclosure_elem = dfa->eclosures[edest];
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1687 /* Merge the epsilon closure of `edest'. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1688 re_node_set_merge (&eclosure, &eclosure_elem);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1689 /* If the epsilon closure of `edest' is incomplete,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1690 the epsilon closure of this node is also incomplete. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1691 if (dfa->eclosures[edest].nelem == 0)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1692 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1693 incomplete = 1;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1694 re_node_set_free (&eclosure_elem);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1695 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1696 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1697
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1698 /* Epsilon closures include itself. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1699 re_node_set_insert (&eclosure, node);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1700 if (incomplete && !root)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1701 dfa->eclosures[node].nelem = 0;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1702 else
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1703 dfa->eclosures[node] = eclosure;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1704 *new_set = eclosure;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1705 return REG_NOERROR;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1706 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1707
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1708 /* Functions for token which are used in the parser. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1709
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1710 /* Fetch a token from INPUT.
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1711 We must not use this function inside bracket expressions. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1712
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1713 static void
6076 e2dd51f6e259 * config/srclist.txt: Add glibc bugs 1220, 1221, 1222. Paul Eggert <eggert@cs.ucla.edu> parents: 6071 diff changeset	1714 fetch_token (re_token_t result, re_string_t input, reg_syntax_t syntax)
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1715 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1716 re_string_skip_bytes (input, peek_token (result, input, syntax));
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1717 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1718
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1719 /* Peek a token from INPUT, and return the length of the token.
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1720 We must not use this function inside bracket expressions. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1721
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1722 static int
6076 e2dd51f6e259 * config/srclist.txt: Add glibc bugs 1220, 1221, 1222. Paul Eggert <eggert@cs.ucla.edu> parents: 6071 diff changeset	1723 peek_token (re_token_t token, re_string_t input, reg_syntax_t syntax)
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1724 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1725 unsigned char c;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1726
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1727 if (re_string_eoi (input))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1728 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1729 token->type = END_OF_RE;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1730 return 0;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1731 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1732
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1733 c = re_string_peek_byte (input, 0);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1734 token->opr.c = c;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1735
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1736 token->word_char = 0;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1737 #ifdef RE_ENABLE_I18N
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1738 token->mb_partial = 0;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1739 if (input->mb_cur_max > 1 &&
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1740 !re_string_first_byte (input, re_string_cur_idx (input)))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1741 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1742 token->type = CHARACTER;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1743 token->mb_partial = 1;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1744 return 1;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1745 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1746 #endif
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1747 if (c == '\\')
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1748 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1749 unsigned char c2;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1750 if (re_string_cur_idx (input) + 1 >= re_string_length (input))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1751 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1752 token->type = BACK_SLASH;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1753 return 1;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1754 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1755
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1756 c2 = re_string_peek_byte_case (input, 1);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1757 token->opr.c = c2;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1758 token->type = CHARACTER;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1759 #ifdef RE_ENABLE_I18N
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1760 if (input->mb_cur_max > 1)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1761 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1762 wint_t wc = re_string_wchar_at (input,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1763 re_string_cur_idx (input) + 1);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1764 token->word_char = IS_WIDE_WORD_CHAR (wc) != 0;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1765 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1766 else
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1767 #endif
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1768 token->word_char = IS_WORD_CHAR (c2) != 0;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1769
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1770 switch (c2)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1771 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1772 case '\|':
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1773 if (!(syntax & RE_LIMITED_OPS) && !(syntax & RE_NO_BK_VBAR))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1774 token->type = OP_ALT;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1775 break;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1776 case '1': case '2': case '3': case '4': case '5':
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1777 case '6': case '7': case '8': case '9':
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1778 if (!(syntax & RE_NO_BK_REFS))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1779 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1780 token->type = OP_BACK_REF;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1781 token->opr.idx = c2 - '1';
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1782 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1783 break;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1784 case '<':
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1785 if (!(syntax & RE_NO_GNU_OPS))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1786 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1787 token->type = ANCHOR;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1788 token->opr.ctx_type = WORD_FIRST;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1789 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1790 break;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1791 case '>':
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1792 if (!(syntax & RE_NO_GNU_OPS))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1793 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1794 token->type = ANCHOR;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1795 token->opr.ctx_type = WORD_LAST;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1796 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1797 break;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1798 case 'b':
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1799 if (!(syntax & RE_NO_GNU_OPS))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1800 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1801 token->type = ANCHOR;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1802 token->opr.ctx_type = WORD_DELIM;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1803 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1804 break;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1805 case 'B':
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1806 if (!(syntax & RE_NO_GNU_OPS))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1807 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1808 token->type = ANCHOR;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1809 token->opr.ctx_type = NOT_WORD_DELIM;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1810 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1811 break;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1812 case 'w':
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1813 if (!(syntax & RE_NO_GNU_OPS))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1814 token->type = OP_WORD;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1815 break;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1816 case 'W':
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1817 if (!(syntax & RE_NO_GNU_OPS))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1818 token->type = OP_NOTWORD;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1819 break;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1820 case 's':
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1821 if (!(syntax & RE_NO_GNU_OPS))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1822 token->type = OP_SPACE;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1823 break;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1824 case 'S':
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1825 if (!(syntax & RE_NO_GNU_OPS))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1826 token->type = OP_NOTSPACE;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1827 break;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1828 case '`':
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1829 if (!(syntax & RE_NO_GNU_OPS))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1830 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1831 token->type = ANCHOR;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1832 token->opr.ctx_type = BUF_FIRST;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1833 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1834 break;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1835 case '\'':
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1836 if (!(syntax & RE_NO_GNU_OPS))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1837 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1838 token->type = ANCHOR;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1839 token->opr.ctx_type = BUF_LAST;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1840 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1841 break;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1842 case '(':
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1843 if (!(syntax & RE_NO_BK_PARENS))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1844 token->type = OP_OPEN_SUBEXP;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1845 break;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1846 case ')':
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1847 if (!(syntax & RE_NO_BK_PARENS))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1848 token->type = OP_CLOSE_SUBEXP;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1849 break;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1850 case '+':
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1851 if (!(syntax & RE_LIMITED_OPS) && (syntax & RE_BK_PLUS_QM))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1852 token->type = OP_DUP_PLUS;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1853 break;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1854 case '?':
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1855 if (!(syntax & RE_LIMITED_OPS) && (syntax & RE_BK_PLUS_QM))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1856 token->type = OP_DUP_QUESTION;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1857 break;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1858 case '{':
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1859 if ((syntax & RE_INTERVALS) && (!(syntax & RE_NO_BK_BRACES)))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1860 token->type = OP_OPEN_DUP_NUM;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1861 break;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1862 case '}':
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1863 if ((syntax & RE_INTERVALS) && (!(syntax & RE_NO_BK_BRACES)))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1864 token->type = OP_CLOSE_DUP_NUM;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1865 break;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1866 default:
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1867 break;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1868 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1869 return 2;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1870 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1871
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1872 token->type = CHARACTER;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1873 #ifdef RE_ENABLE_I18N
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1874 if (input->mb_cur_max > 1)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1875 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1876 wint_t wc = re_string_wchar_at (input, re_string_cur_idx (input));
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1877 token->word_char = IS_WIDE_WORD_CHAR (wc) != 0;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1878 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1879 else
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1880 #endif
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1881 token->word_char = IS_WORD_CHAR (token->opr.c);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1882
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1883 switch (c)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1884 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1885 case '\n':
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1886 if (syntax & RE_NEWLINE_ALT)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1887 token->type = OP_ALT;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1888 break;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1889 case '\|':
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1890 if (!(syntax & RE_LIMITED_OPS) && (syntax & RE_NO_BK_VBAR))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1891 token->type = OP_ALT;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1892 break;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1893 case '*':
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1894 token->type = OP_DUP_ASTERISK;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1895 break;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1896 case '+':
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1897 if (!(syntax & RE_LIMITED_OPS) && !(syntax & RE_BK_PLUS_QM))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1898 token->type = OP_DUP_PLUS;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1899 break;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1900 case '?':
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1901 if (!(syntax & RE_LIMITED_OPS) && !(syntax & RE_BK_PLUS_QM))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1902 token->type = OP_DUP_QUESTION;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1903 break;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1904 case '{':
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1905 if ((syntax & RE_INTERVALS) && (syntax & RE_NO_BK_BRACES))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1906 token->type = OP_OPEN_DUP_NUM;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1907 break;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1908 case '}':
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1909 if ((syntax & RE_INTERVALS) && (syntax & RE_NO_BK_BRACES))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1910 token->type = OP_CLOSE_DUP_NUM;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1911 break;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1912 case '(':
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1913 if (syntax & RE_NO_BK_PARENS)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1914 token->type = OP_OPEN_SUBEXP;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1915 break;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1916 case ')':
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1917 if (syntax & RE_NO_BK_PARENS)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1918 token->type = OP_CLOSE_SUBEXP;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1919 break;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1920 case '[':
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1921 token->type = OP_OPEN_BRACKET;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1922 break;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1923 case '.':
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1924 token->type = OP_PERIOD;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1925 break;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1926 case '^':
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1927 if (!(syntax & (RE_CONTEXT_INDEP_ANCHORS \| RE_CARET_ANCHORS_HERE)) &&
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1928 re_string_cur_idx (input) != 0)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1929 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1930 char prev = re_string_peek_byte (input, -1);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1931 if (!(syntax & RE_NEWLINE_ALT) \|\| prev != '\n')
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1932 break;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1933 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1934 token->type = ANCHOR;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1935 token->opr.ctx_type = LINE_FIRST;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1936 break;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1937 case '$':
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1938 if (!(syntax & RE_CONTEXT_INDEP_ANCHORS) &&
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1939 re_string_cur_idx (input) + 1 != re_string_length (input))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1940 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1941 re_token_t next;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1942 re_string_skip_bytes (input, 1);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1943 peek_token (&next, input, syntax);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1944 re_string_skip_bytes (input, -1);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1945 if (next.type != OP_ALT && next.type != OP_CLOSE_SUBEXP)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1946 break;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1947 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1948 token->type = ANCHOR;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1949 token->opr.ctx_type = LINE_LAST;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1950 break;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1951 default:
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1952 break;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1953 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1954 return 1;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1955 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1956
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1957 /* Peek a token from INPUT, and return the length of the token.
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1958 We must not use this function out of bracket expressions. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1959
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1960 static int
6076 e2dd51f6e259 * config/srclist.txt: Add glibc bugs 1220, 1221, 1222. Paul Eggert <eggert@cs.ucla.edu> parents: 6071 diff changeset	1961 peek_token_bracket (re_token_t token, re_string_t input, reg_syntax_t syntax)
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1962 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1963 unsigned char c;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1964 if (re_string_eoi (input))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1965 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1966 token->type = END_OF_RE;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1967 return 0;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1968 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1969 c = re_string_peek_byte (input, 0);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1970 token->opr.c = c;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1971
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1972 #ifdef RE_ENABLE_I18N
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1973 if (input->mb_cur_max > 1 &&
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1974 !re_string_first_byte (input, re_string_cur_idx (input)))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1975 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1976 token->type = CHARACTER;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1977 return 1;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1978 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1979 #endif /* RE_ENABLE_I18N */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1980
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1981 if (c == '\\' && (syntax & RE_BACKSLASH_ESCAPE_IN_LISTS)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1982 && re_string_cur_idx (input) + 1 < re_string_length (input))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1983 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1984 /* In this case, '\' escape a character. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1985 unsigned char c2;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1986 re_string_skip_bytes (input, 1);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1987 c2 = re_string_peek_byte (input, 0);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1988 token->opr.c = c2;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1989 token->type = CHARACTER;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1990 return 1;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1991 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1992 if (c == '[') /* '[' is a special char in a bracket exps. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1993 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1994 unsigned char c2;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1995 int token_len;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1996 if (re_string_cur_idx (input) + 1 < re_string_length (input))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1997 c2 = re_string_peek_byte (input, 1);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1998 else
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1999 c2 = 0;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2000 token->opr.c = c2;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2001 token_len = 2;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2002 switch (c2)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2003 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2004 case '.':
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2005 token->type = OP_OPEN_COLL_ELEM;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2006 break;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2007 case '=':
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2008 token->type = OP_OPEN_EQUIV_CLASS;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2009 break;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2010 case ':':
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2011 if (syntax & RE_CHAR_CLASSES)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2012 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2013 token->type = OP_OPEN_CHAR_CLASS;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2014 break;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2015 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2016 /* else fall through. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2017 default:
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2018 token->type = CHARACTER;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2019 token->opr.c = c;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2020 token_len = 1;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2021 break;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2022 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2023 return token_len;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2024 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2025 switch (c)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2026 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2027 case '-':
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2028 token->type = OP_CHARSET_RANGE;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2029 break;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2030 case ']':
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2031 token->type = OP_CLOSE_BRACKET;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2032 break;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2033 case '^':
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2034 token->type = OP_NON_MATCH_LIST;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2035 break;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2036 default:
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2037 token->type = CHARACTER;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2038 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2039 return 1;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2040 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2041
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2042 /* Functions for parser. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2043
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2044 /* Entry point of the parser.
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2045 Parse the regular expression REGEXP and return the structure tree.
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2046 If an error is occured, ERR is set by error code, and return NULL.
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2047 This function build the following tree, from regular expression <reg_exp>:
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2048 CAT
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2049 / \
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2050 / \
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2051 <reg_exp> EOR
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2052
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2053 CAT means concatenation.
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2054 EOR means end of regular expression. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2055
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2056 static bin_tree_t *
6076 e2dd51f6e259 * config/srclist.txt: Add glibc bugs 1220, 1221, 1222. Paul Eggert <eggert@cs.ucla.edu> parents: 6071 diff changeset	2057 parse (re_string_t regexp, regex_t preg, reg_syntax_t syntax,
e2dd51f6e259 * config/srclist.txt: Add glibc bugs 1220, 1221, 1222. Paul Eggert <eggert@cs.ucla.edu> parents: 6071 diff changeset	2058 reg_errcode_t *err)
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2059 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2060 re_dfa_t dfa = (re_dfa_t ) preg->buffer;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2061 bin_tree_t tree, eor, *root;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2062 re_token_t current_token;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2063 dfa->syntax = syntax;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2064 fetch_token (&current_token, regexp, syntax \| RE_CARET_ANCHORS_HERE);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2065 tree = parse_reg_exp (regexp, preg, &current_token, syntax, 0, err);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2066 if (BE (*err != REG_NOERROR && tree == NULL, 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2067 return NULL;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2068 eor = create_tree (dfa, NULL, NULL, END_OF_RE);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2069 if (tree != NULL)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2070 root = create_tree (dfa, tree, eor, CONCAT);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2071 else
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2072 root = eor;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2073 if (BE (eor == NULL \|\| root == NULL, 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2074 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2075 *err = REG_ESPACE;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2076 return NULL;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2077 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2078 return root;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2079 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2080
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2081 /* This function build the following tree, from regular expression
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2082 <branch1>\|<branch2>:
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2083 ALT
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2084 / \
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2085 / \
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2086 <branch1> <branch2>
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2087
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2088 ALT means alternative, which represents the operator `\|'. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2089
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2090 static bin_tree_t *
6076 e2dd51f6e259 * config/srclist.txt: Add glibc bugs 1220, 1221, 1222. Paul Eggert <eggert@cs.ucla.edu> parents: 6071 diff changeset	2091 parse_reg_exp (re_string_t regexp, regex_t preg, re_token_t *token,
e2dd51f6e259 * config/srclist.txt: Add glibc bugs 1220, 1221, 1222. Paul Eggert <eggert@cs.ucla.edu> parents: 6071 diff changeset	2092 reg_syntax_t syntax, int nest, reg_errcode_t *err)
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2093 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2094 re_dfa_t dfa = (re_dfa_t ) preg->buffer;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2095 bin_tree_t tree, branch = NULL;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2096 tree = parse_branch (regexp, preg, token, syntax, nest, err);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2097 if (BE (*err != REG_NOERROR && tree == NULL, 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2098 return NULL;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2099
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2100 while (token->type == OP_ALT)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2101 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2102 fetch_token (token, regexp, syntax \| RE_CARET_ANCHORS_HERE);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2103 if (token->type != OP_ALT && token->type != END_OF_RE
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2104 && (nest == 0 \|\| token->type != OP_CLOSE_SUBEXP))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2105 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2106 branch = parse_branch (regexp, preg, token, syntax, nest, err);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2107 if (BE (*err != REG_NOERROR && branch == NULL, 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2108 return NULL;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2109 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2110 else
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2111 branch = NULL;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2112 tree = create_tree (dfa, tree, branch, OP_ALT);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2113 if (BE (tree == NULL, 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2114 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2115 *err = REG_ESPACE;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2116 return NULL;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2117 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2118 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2119 return tree;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2120 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2121
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2122 /* This function build the following tree, from regular expression
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2123 <exp1><exp2>:
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2124 CAT
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2125 / \
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2126 / \
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2127 <exp1> <exp2>
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2128
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2129 CAT means concatenation. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2130
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2131 static bin_tree_t *
6076 e2dd51f6e259 * config/srclist.txt: Add glibc bugs 1220, 1221, 1222. Paul Eggert <eggert@cs.ucla.edu> parents: 6071 diff changeset	2132 parse_branch (re_string_t regexp, regex_t preg, re_token_t *token,
e2dd51f6e259 * config/srclist.txt: Add glibc bugs 1220, 1221, 1222. Paul Eggert <eggert@cs.ucla.edu> parents: 6071 diff changeset	2133 reg_syntax_t syntax, int nest, reg_errcode_t *err)
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2134 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2135 bin_tree_t tree, exp;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2136 re_dfa_t dfa = (re_dfa_t ) preg->buffer;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2137 tree = parse_expression (regexp, preg, token, syntax, nest, err);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2138 if (BE (*err != REG_NOERROR && tree == NULL, 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2139 return NULL;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2140
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2141 while (token->type != OP_ALT && token->type != END_OF_RE
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2142 && (nest == 0 \|\| token->type != OP_CLOSE_SUBEXP))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2143 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2144 exp = parse_expression (regexp, preg, token, syntax, nest, err);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2145 if (BE (*err != REG_NOERROR && exp == NULL, 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2146 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2147 return NULL;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2148 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2149 if (tree != NULL && exp != NULL)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2150 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2151 tree = create_tree (dfa, tree, exp, CONCAT);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2152 if (tree == NULL)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2153 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2154 *err = REG_ESPACE;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2155 return NULL;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2156 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2157 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2158 else if (tree == NULL)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2159 tree = exp;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2160 /* Otherwise exp == NULL, we don't need to create new tree. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2161 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2162 return tree;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2163 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2164
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2165 /* This function build the following tree, from regular expression a*:
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2166 *
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2167 \|
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2168 a
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2169 */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2170
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2171 static bin_tree_t *
6076 e2dd51f6e259 * config/srclist.txt: Add glibc bugs 1220, 1221, 1222. Paul Eggert <eggert@cs.ucla.edu> parents: 6071 diff changeset	2172 parse_expression (re_string_t regexp, regex_t preg, re_token_t *token,
e2dd51f6e259 * config/srclist.txt: Add glibc bugs 1220, 1221, 1222. Paul Eggert <eggert@cs.ucla.edu> parents: 6071 diff changeset	2173 reg_syntax_t syntax, int nest, reg_errcode_t *err)
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2174 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2175 re_dfa_t dfa = (re_dfa_t ) preg->buffer;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2176 bin_tree_t *tree;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2177 switch (token->type)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2178 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2179 case CHARACTER:
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2180 tree = create_token_tree (dfa, NULL, NULL, token);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2181 if (BE (tree == NULL, 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2182 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2183 *err = REG_ESPACE;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2184 return NULL;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2185 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2186 #ifdef RE_ENABLE_I18N
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2187 if (dfa->mb_cur_max > 1)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2188 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2189 while (!re_string_eoi (regexp)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2190 && !re_string_first_byte (regexp, re_string_cur_idx (regexp)))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2191 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2192 bin_tree_t *mbc_remain;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2193 fetch_token (token, regexp, syntax);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2194 mbc_remain = create_token_tree (dfa, NULL, NULL, token);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2195 tree = create_tree (dfa, tree, mbc_remain, CONCAT);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2196 if (BE (mbc_remain == NULL \|\| tree == NULL, 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2197 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2198 *err = REG_ESPACE;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2199 return NULL;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2200 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2201 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2202 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2203 #endif
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2204 break;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2205 case OP_OPEN_SUBEXP:
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2206 tree = parse_sub_exp (regexp, preg, token, syntax, nest + 1, err);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2207 if (BE (*err != REG_NOERROR && tree == NULL, 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2208 return NULL;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2209 break;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2210 case OP_OPEN_BRACKET:
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2211 tree = parse_bracket_exp (regexp, dfa, token, syntax, err);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2212 if (BE (*err != REG_NOERROR && tree == NULL, 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2213 return NULL;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2214 break;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2215 case OP_BACK_REF:
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2216 if (!BE (dfa->completed_bkref_map & (1 << token->opr.idx), 1))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2217 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2218 *err = REG_ESUBREG;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2219 return NULL;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2220 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2221 dfa->used_bkref_map \|= 1 << token->opr.idx;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2222 tree = create_token_tree (dfa, NULL, NULL, token);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2223 if (BE (tree == NULL, 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2224 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2225 *err = REG_ESPACE;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2226 return NULL;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2227 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2228 ++dfa->nbackref;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2229 dfa->has_mb_node = 1;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2230 break;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2231 case OP_OPEN_DUP_NUM:
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2232 if (syntax & RE_CONTEXT_INVALID_DUP)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2233 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2234 *err = REG_BADRPT;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2235 return NULL;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2236 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2237 /* FALLTHROUGH */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2238 case OP_DUP_ASTERISK:
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2239 case OP_DUP_PLUS:
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2240 case OP_DUP_QUESTION:
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2241 if (syntax & RE_CONTEXT_INVALID_OPS)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2242 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2243 *err = REG_BADRPT;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2244 return NULL;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2245 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2246 else if (syntax & RE_CONTEXT_INDEP_OPS)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2247 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2248 fetch_token (token, regexp, syntax);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2249 return parse_expression (regexp, preg, token, syntax, nest, err);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2250 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2251 /* else fall through */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2252 case OP_CLOSE_SUBEXP:
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2253 if ((token->type == OP_CLOSE_SUBEXP) &&
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2254 !(syntax & RE_UNMATCHED_RIGHT_PAREN_ORD))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2255 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2256 *err = REG_ERPAREN;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2257 return NULL;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2258 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2259 /* else fall through */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2260 case OP_CLOSE_DUP_NUM:
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2261 /* We treat it as a normal character. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2262
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2263 /* Then we can these characters as normal characters. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2264 token->type = CHARACTER;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2265 /* mb_partial and word_char bits should be initialized already
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2266 by peek_token. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2267 tree = create_token_tree (dfa, NULL, NULL, token);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2268 if (BE (tree == NULL, 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2269 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2270 *err = REG_ESPACE;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2271 return NULL;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2272 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2273 break;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2274 case ANCHOR:
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2275 if ((token->opr.ctx_type
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2276 & (WORD_DELIM \| NOT_WORD_DELIM \| WORD_FIRST \| WORD_LAST))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2277 && dfa->word_ops_used == 0)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2278 init_word_char (dfa);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2279 if (token->opr.ctx_type == WORD_DELIM
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2280 \|\| token->opr.ctx_type == NOT_WORD_DELIM)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2281 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2282 bin_tree_t tree_first, tree_last;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2283 if (token->opr.ctx_type == WORD_DELIM)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2284 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2285 token->opr.ctx_type = WORD_FIRST;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2286 tree_first = create_token_tree (dfa, NULL, NULL, token);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2287 token->opr.ctx_type = WORD_LAST;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2288 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2289 else
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2290 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2291 token->opr.ctx_type = INSIDE_WORD;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2292 tree_first = create_token_tree (dfa, NULL, NULL, token);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2293 token->opr.ctx_type = INSIDE_NOTWORD;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2294 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2295 tree_last = create_token_tree (dfa, NULL, NULL, token);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2296 tree = create_tree (dfa, tree_first, tree_last, OP_ALT);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2297 if (BE (tree_first == NULL \|\| tree_last == NULL \|\| tree == NULL, 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2298 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2299 *err = REG_ESPACE;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2300 return NULL;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2301 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2302 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2303 else
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2304 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2305 tree = create_token_tree (dfa, NULL, NULL, token);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2306 if (BE (tree == NULL, 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2307 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2308 *err = REG_ESPACE;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2309 return NULL;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2310 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2311 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2312 /* We must return here, since ANCHORs can't be followed
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2313 by repetition operators.
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2314 eg. RE"^" is invalid or "<ANCHOR(^)><CHAR()>",
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2315 it must not be "<ANCHOR(^)><REPEAT()>". /
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2316 fetch_token (token, regexp, syntax);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2317 return tree;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2318 case OP_PERIOD:
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2319 tree = create_token_tree (dfa, NULL, NULL, token);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2320 if (BE (tree == NULL, 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2321 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2322 *err = REG_ESPACE;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2323 return NULL;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2324 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2325 if (dfa->mb_cur_max > 1)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2326 dfa->has_mb_node = 1;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2327 break;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2328 case OP_WORD:
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2329 case OP_NOTWORD:
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2330 tree = build_charclass_op (dfa, regexp->trans,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2331 (const unsigned char *) "alnum",
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2332 (const unsigned char *) "_",
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2333 token->type == OP_NOTWORD, err);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2334 if (BE (*err != REG_NOERROR && tree == NULL, 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2335 return NULL;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2336 break;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2337 case OP_SPACE:
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2338 case OP_NOTSPACE:
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2339 tree = build_charclass_op (dfa, regexp->trans,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2340 (const unsigned char *) "space",
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2341 (const unsigned char *) "",
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2342 token->type == OP_NOTSPACE, err);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2343 if (BE (*err != REG_NOERROR && tree == NULL, 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2344 return NULL;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2345 break;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2346 case OP_ALT:
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2347 case END_OF_RE:
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2348 return NULL;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2349 case BACK_SLASH:
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2350 *err = REG_EESCAPE;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2351 return NULL;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2352 default:
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2353 /* Must not happen? */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2354 #ifdef DEBUG
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2355 assert (0);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2356 #endif
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2357 return NULL;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2358 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2359 fetch_token (token, regexp, syntax);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2360
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2361 while (token->type == OP_DUP_ASTERISK \|\| token->type == OP_DUP_PLUS
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2362 \|\| token->type == OP_DUP_QUESTION \|\| token->type == OP_OPEN_DUP_NUM)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2363 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2364 tree = parse_dup_op (tree, regexp, dfa, token, syntax, err);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2365 if (BE (*err != REG_NOERROR && tree == NULL, 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2366 return NULL;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2367 /* In BRE consecutive duplications are not allowed. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2368 if ((syntax & RE_CONTEXT_INVALID_DUP)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2369 && (token->type == OP_DUP_ASTERISK
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2370 \|\| token->type == OP_OPEN_DUP_NUM))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2371 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2372 *err = REG_BADRPT;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2373 return NULL;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2374 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2375 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2376
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2377 return tree;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2378 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2379
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2380 /* This function build the following tree, from regular expression
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2381 (<reg_exp>):
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2382 SUBEXP
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2383 \|
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2384 <reg_exp>
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2385 */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2386
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2387 static bin_tree_t *
6076 e2dd51f6e259 * config/srclist.txt: Add glibc bugs 1220, 1221, 1222. Paul Eggert <eggert@cs.ucla.edu> parents: 6071 diff changeset	2388 parse_sub_exp (re_string_t regexp, regex_t preg, re_token_t *token,
e2dd51f6e259 * config/srclist.txt: Add glibc bugs 1220, 1221, 1222. Paul Eggert <eggert@cs.ucla.edu> parents: 6071 diff changeset	2389 reg_syntax_t syntax, int nest, reg_errcode_t *err)
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2390 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2391 re_dfa_t dfa = (re_dfa_t ) preg->buffer;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2392 bin_tree_t *tree;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2393 size_t cur_nsub;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2394 cur_nsub = preg->re_nsub++;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2395
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2396 fetch_token (token, regexp, syntax \| RE_CARET_ANCHORS_HERE);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2397
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2398 /* The subexpression may be a null string. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2399 if (token->type == OP_CLOSE_SUBEXP)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2400 tree = NULL;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2401 else
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2402 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2403 tree = parse_reg_exp (regexp, preg, token, syntax, nest, err);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2404 if (BE (*err == REG_NOERROR && token->type != OP_CLOSE_SUBEXP, 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2405 *err = REG_EPAREN;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2406 if (BE (*err != REG_NOERROR, 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2407 return NULL;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2408 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2409 dfa->completed_bkref_map \|= 1 << cur_nsub;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2410
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2411 tree = create_tree (dfa, tree, NULL, SUBEXP);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2412 if (BE (tree == NULL, 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2413 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2414 *err = REG_ESPACE;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2415 return NULL;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2416 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2417 tree->token.opr.idx = cur_nsub;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2418 return tree;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2419 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2420
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2421 /* This function parse repetition operators like "", "+", "{1,3}" etc. /
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2422
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2423 static bin_tree_t *
6076 e2dd51f6e259 * config/srclist.txt: Add glibc bugs 1220, 1221, 1222. Paul Eggert <eggert@cs.ucla.edu> parents: 6071 diff changeset	2424 parse_dup_op (bin_tree_t elem, re_string_t regexp, re_dfa_t *dfa,
e2dd51f6e259 * config/srclist.txt: Add glibc bugs 1220, 1221, 1222. Paul Eggert <eggert@cs.ucla.edu> parents: 6071 diff changeset	2425 re_token_t token, reg_syntax_t syntax, reg_errcode_t err)
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2426 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2427 bin_tree_t tree = NULL, old_tree = NULL;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2428 int i, start, end, start_idx = re_string_cur_idx (regexp);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2429 re_token_t start_token = *token;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2430
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2431 if (token->type == OP_OPEN_DUP_NUM)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2432 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2433 end = 0;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2434 start = fetch_number (regexp, token, syntax);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2435 if (start == -1)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2436 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2437 if (token->type == CHARACTER && token->opr.c == ',')
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2438 start = 0; /* We treat "{,m}" as "{0,m}". */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2439 else
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2440 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2441 err = REG_BADBR; / <re>{} is invalid. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2442 return NULL;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2443 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2444 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2445 if (BE (start != -2, 1))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2446 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2447 /* We treat "{n}" as "{n,n}". */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2448 end = ((token->type == OP_CLOSE_DUP_NUM) ? start
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2449 : ((token->type == CHARACTER && token->opr.c == ',')
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2450 ? fetch_number (regexp, token, syntax) : -2));
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2451 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2452 if (BE (start == -2 \|\| end == -2, 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2453 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2454 /* Invalid sequence. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2455 if (BE (!(syntax & RE_INVALID_INTERVAL_ORD), 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2456 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2457 if (token->type == END_OF_RE)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2458 *err = REG_EBRACE;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2459 else
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2460 *err = REG_BADBR;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2461
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2462 return NULL;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2463 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2464
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2465 /* If the syntax bit is set, rollback. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2466 re_string_set_index (regexp, start_idx);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2467 *token = start_token;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2468 token->type = CHARACTER;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2469 /* mb_partial and word_char bits should be already initialized by
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2470 peek_token. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2471 return elem;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2472 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2473
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2474 if (BE (end != -1 && start > end, 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2475 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2476 /* First number greater than second. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2477 *err = REG_BADBR;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2478 return NULL;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2479 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2480 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2481 else
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2482 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2483 start = (token->type == OP_DUP_PLUS) ? 1 : 0;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2484 end = (token->type == OP_DUP_QUESTION) ? 1 : -1;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2485 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2486
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2487 fetch_token (token, regexp, syntax);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2488
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2489 if (BE (elem == NULL, 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2490 return NULL;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2491 if (BE (start == 0 && end == 0, 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2492 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2493 postorder (elem, free_tree, NULL);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2494 return NULL;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2495 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2496
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2497 /* Extract "<re>{n,m}" to "<re><re>...<re><re>{0,<m-n>}". */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2498 if (BE (start > 0, 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2499 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2500 tree = elem;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2501 for (i = 2; i <= start; ++i)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2502 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2503 elem = duplicate_tree (elem, dfa);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2504 tree = create_tree (dfa, tree, elem, CONCAT);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2505 if (BE (elem == NULL \|\| tree == NULL, 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2506 goto parse_dup_op_espace;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2507 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2508
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2509 if (start == end)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2510 return tree;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2511
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2512 /* Duplicate ELEM before it is marked optional. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2513 elem = duplicate_tree (elem, dfa);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2514 old_tree = tree;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2515 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2516 else
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2517 old_tree = NULL;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2518
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2519 if (elem->token.type == SUBEXP)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2520 postorder (elem, mark_opt_subexp, (void *) (long) elem->token.opr.idx);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2521
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2522 tree = create_tree (dfa, elem, NULL, (end == -1 ? OP_DUP_ASTERISK : OP_ALT));
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2523 if (BE (tree == NULL, 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2524 goto parse_dup_op_espace;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2525
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2526 /* This loop is actually executed only when end != -1,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2527 to rewrite <re>{0,n} as (<re>(<re>...<re>?)?)?... We have
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2528 already created the start+1-th copy. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2529 for (i = start + 2; i <= end; ++i)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2530 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2531 elem = duplicate_tree (elem, dfa);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2532 tree = create_tree (dfa, tree, elem, CONCAT);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2533 if (BE (elem == NULL \|\| tree == NULL, 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2534 goto parse_dup_op_espace;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2535
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2536 tree = create_tree (dfa, tree, NULL, OP_ALT);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2537 if (BE (tree == NULL, 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2538 goto parse_dup_op_espace;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2539 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2540
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2541 if (old_tree)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2542 tree = create_tree (dfa, old_tree, tree, CONCAT);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2543
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2544 return tree;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2545
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2546 parse_dup_op_espace:
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2547 *err = REG_ESPACE;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2548 return NULL;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2549 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2550
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2551 /* Size of the names for collating symbol/equivalence_class/character_class.
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2552 I'm not sure, but maybe enough. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2553 #define BRACKET_NAME_BUF_SIZE 32
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2554
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2555 #ifndef _LIBC
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2556 /* Local function for parse_bracket_exp only used in case of NOT _LIBC.
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2557 Build the range expression which starts from START_ELEM, and ends
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2558 at END_ELEM. The result are written to MBCSET and SBCSET.
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2559 RANGE_ALLOC is the allocated size of mbcset->range_starts, and
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2560 mbcset->range_ends, is a pointer argument sinse we may
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2561 update it. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2562
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2563 static reg_errcode_t
6076 e2dd51f6e259 * config/srclist.txt: Add glibc bugs 1220, 1221, 1222. Paul Eggert <eggert@cs.ucla.edu> parents: 6071 diff changeset	2564 build_range_exp (re_bitset_ptr_t sbcset,
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2565 # ifdef RE_ENABLE_I18N
6076 e2dd51f6e259 * config/srclist.txt: Add glibc bugs 1220, 1221, 1222. Paul Eggert <eggert@cs.ucla.edu> parents: 6071 diff changeset	2566 re_charset_t mbcset, int range_alloc,
e2dd51f6e259 * config/srclist.txt: Add glibc bugs 1220, 1221, 1222. Paul Eggert <eggert@cs.ucla.edu> parents: 6071 diff changeset	2567 # endif
e2dd51f6e259 * config/srclist.txt: Add glibc bugs 1220, 1221, 1222. Paul Eggert <eggert@cs.ucla.edu> parents: 6071 diff changeset	2568 bracket_elem_t start_elem, bracket_elem_t end_elem)
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2569 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2570 unsigned int start_ch, end_ch;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2571 /* Equivalence Classes and Character Classes can't be a range start/end. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2572 if (BE (start_elem->type == EQUIV_CLASS \|\| start_elem->type == CHAR_CLASS
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2573 \|\| end_elem->type == EQUIV_CLASS \|\| end_elem->type == CHAR_CLASS,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2574 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2575 return REG_ERANGE;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2576
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2577 /* We can handle no multi character collating elements without libc
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2578 support. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2579 if (BE ((start_elem->type == COLL_SYM
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2580 && strlen ((char *) start_elem->opr.name) > 1)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2581 \|\| (end_elem->type == COLL_SYM
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2582 && strlen ((char *) end_elem->opr.name) > 1), 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2583 return REG_ECOLLATE;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2584
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2585 # ifdef RE_ENABLE_I18N
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2586 {
5972 aa260da0bbbe * config/srclist.txt: Comment out regcomp.c, since we have a porting fix Paul Eggert <eggert@cs.ucla.edu> parents: 5968 diff changeset	2587 wchar_t wc;
aa260da0bbbe * config/srclist.txt: Comment out regcomp.c, since we have a porting fix Paul Eggert <eggert@cs.ucla.edu> parents: 5968 diff changeset	2588 wint_t start_wc, end_wc;
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2589 wchar_t cmp_buf[6] = {L'\0', L'\0', L'\0', L'\0', L'\0', L'\0'};
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2590
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2591 start_ch = ((start_elem->type == SB_CHAR) ? start_elem->opr.ch
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2592 : ((start_elem->type == COLL_SYM) ? start_elem->opr.name[0]
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2593 : 0));
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2594 end_ch = ((end_elem->type == SB_CHAR) ? end_elem->opr.ch
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2595 : ((end_elem->type == COLL_SYM) ? end_elem->opr.name[0]
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2596 : 0));
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2597 start_wc = ((start_elem->type == SB_CHAR \|\| start_elem->type == COLL_SYM)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2598 ? __btowc (start_ch) : start_elem->opr.wch);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2599 end_wc = ((end_elem->type == SB_CHAR \|\| end_elem->type == COLL_SYM)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2600 ? __btowc (end_ch) : end_elem->opr.wch);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2601 if (start_wc == WEOF \|\| end_wc == WEOF)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2602 return REG_ECOLLATE;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2603 cmp_buf[0] = start_wc;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2604 cmp_buf[4] = end_wc;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2605 if (wcscoll (cmp_buf, cmp_buf + 4) > 0)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2606 return REG_ERANGE;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2607
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2608 /* Got valid collation sequence values, add them as a new entry.
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2609 However, for !_LIBC we have no collation elements: if the
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2610 character set is single byte, the single byte character set
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2611 that we build below suffices. parse_bracket_exp passes
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2612 no MBCSET if dfa->mb_cur_max == 1. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2613 if (mbcset)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2614 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2615 /* Check the space of the arrays. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2616 if (BE (*range_alloc == mbcset->nranges, 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2617 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2618 /* There is not enough space, need realloc. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2619 wchar_t new_array_start, new_array_end;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2620 int new_nranges;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2621
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2622 /* +1 in case of mbcset->nranges is 0. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2623 new_nranges = 2 * mbcset->nranges + 1;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2624 /* Use realloc since mbcset->range_starts and mbcset->range_ends
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2625 are NULL if range_alloc == 0. /
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2626 new_array_start = re_realloc (mbcset->range_starts, wchar_t,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2627 new_nranges);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2628 new_array_end = re_realloc (mbcset->range_ends, wchar_t,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2629 new_nranges);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2630
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2631 if (BE (new_array_start == NULL \|\| new_array_end == NULL, 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2632 return REG_ESPACE;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2633
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2634 mbcset->range_starts = new_array_start;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2635 mbcset->range_ends = new_array_end;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2636 *range_alloc = new_nranges;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2637 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2638
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2639 mbcset->range_starts[mbcset->nranges] = start_wc;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2640 mbcset->range_ends[mbcset->nranges++] = end_wc;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2641 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2642
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2643 /* Build the table for single byte characters. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2644 for (wc = 0; wc < SBC_MAX; ++wc)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2645 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2646 cmp_buf[2] = wc;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2647 if (wcscoll (cmp_buf, cmp_buf + 2) <= 0
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2648 && wcscoll (cmp_buf + 2, cmp_buf + 4) <= 0)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2649 bitset_set (sbcset, wc);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2650 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2651 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2652 # else /* not RE_ENABLE_I18N */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2653 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2654 unsigned int ch;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2655 start_ch = ((start_elem->type == SB_CHAR ) ? start_elem->opr.ch
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2656 : ((start_elem->type == COLL_SYM) ? start_elem->opr.name[0]
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2657 : 0));
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2658 end_ch = ((end_elem->type == SB_CHAR ) ? end_elem->opr.ch
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2659 : ((end_elem->type == COLL_SYM) ? end_elem->opr.name[0]
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2660 : 0));
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2661 if (start_ch > end_ch)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2662 return REG_ERANGE;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2663 /* Build the table for single byte characters. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2664 for (ch = 0; ch < SBC_MAX; ++ch)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2665 if (start_ch <= ch && ch <= end_ch)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2666 bitset_set (sbcset, ch);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2667 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2668 # endif /* not RE_ENABLE_I18N */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2669 return REG_NOERROR;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2670 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2671 #endif /* not _LIBC */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2672
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2673 #ifndef _LIBC
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2674 /* Helper function for parse_bracket_exp only used in case of NOT _LIBC..
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2675 Build the collating element which is represented by NAME.
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2676 The result are written to MBCSET and SBCSET.
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2677 COLL_SYM_ALLOC is the allocated size of mbcset->coll_sym, is a
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2678 pointer argument since we may update it. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2679
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2680 static reg_errcode_t
6076 e2dd51f6e259 * config/srclist.txt: Add glibc bugs 1220, 1221, 1222. Paul Eggert <eggert@cs.ucla.edu> parents: 6071 diff changeset	2681 build_collating_symbol (re_bitset_ptr_t sbcset,
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2682 # ifdef RE_ENABLE_I18N
6076 e2dd51f6e259 * config/srclist.txt: Add glibc bugs 1220, 1221, 1222. Paul Eggert <eggert@cs.ucla.edu> parents: 6071 diff changeset	2683 re_charset_t mbcset, int coll_sym_alloc,
e2dd51f6e259 * config/srclist.txt: Add glibc bugs 1220, 1221, 1222. Paul Eggert <eggert@cs.ucla.edu> parents: 6071 diff changeset	2684 # endif
e2dd51f6e259 * config/srclist.txt: Add glibc bugs 1220, 1221, 1222. Paul Eggert <eggert@cs.ucla.edu> parents: 6071 diff changeset	2685 const unsigned char *name)
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2686 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2687 size_t name_len = strlen ((const char *) name);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2688 if (BE (name_len != 1, 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2689 return REG_ECOLLATE;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2690 else
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2691 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2692 bitset_set (sbcset, name[0]);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2693 return REG_NOERROR;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2694 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2695 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2696 #endif /* not _LIBC */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2697
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2698 /* This function parse bracket expression like "[abc]", "[a-c]",
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2699 "[[.a-a.]]" etc. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2700
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2701 static bin_tree_t *
6076 e2dd51f6e259 * config/srclist.txt: Add glibc bugs 1220, 1221, 1222. Paul Eggert <eggert@cs.ucla.edu> parents: 6071 diff changeset	2702 parse_bracket_exp (re_string_t regexp, re_dfa_t dfa, re_token_t *token,
e2dd51f6e259 * config/srclist.txt: Add glibc bugs 1220, 1221, 1222. Paul Eggert <eggert@cs.ucla.edu> parents: 6071 diff changeset	2703 reg_syntax_t syntax, reg_errcode_t *err)
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2704 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2705 #ifdef _LIBC
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2706 const unsigned char *collseqmb;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2707 const char *collseqwc;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2708 uint32_t nrules;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2709 int32_t table_size;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2710 const int32_t *symb_table;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2711 const unsigned char *extra;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2712
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2713 /* Local function for parse_bracket_exp used in _LIBC environement.
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2714 Seek the collating symbol entry correspondings to NAME.
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2715 Return the index of the symbol in the SYMB_TABLE. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2716
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2717 auto inline int32_t
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2718 __attribute ((always_inline))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2719 seek_collating_symbol_entry (name, name_len)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2720 const unsigned char *name;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2721 size_t name_len;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2722 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2723 int32_t hash = elem_hash ((const char *) name, name_len);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2724 int32_t elem = hash % table_size;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2725 int32_t second = hash % (table_size - 2);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2726 while (symb_table[2 * elem] != 0)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2727 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2728 /* First compare the hashing value. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2729 if (symb_table[2 * elem] == hash
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2730 /* Compare the length of the name. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2731 && name_len == extra[symb_table[2 * elem + 1]]
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2732 /* Compare the name. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2733 && memcmp (name, &extra[symb_table[2 * elem + 1] + 1],
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2734 name_len) == 0)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2735 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2736 /* Yep, this is the entry. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2737 break;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2738 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2739
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2740 /* Next entry. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2741 elem += second;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2742 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2743 return elem;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2744 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2745
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2746 /* Local function for parse_bracket_exp used in _LIBC environement.
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2747 Look up the collation sequence value of BR_ELEM.
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2748 Return the value if succeeded, UINT_MAX otherwise. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2749
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2750 auto inline unsigned int
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2751 __attribute ((always_inline))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2752 lookup_collation_sequence_value (br_elem)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2753 bracket_elem_t *br_elem;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2754 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2755 if (br_elem->type == SB_CHAR)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2756 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2757 /*
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2758 if (MB_CUR_MAX == 1)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2759 */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2760 if (nrules == 0)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2761 return collseqmb[br_elem->opr.ch];
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2762 else
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2763 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2764 wint_t wc = __btowc (br_elem->opr.ch);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2765 return __collseq_table_lookup (collseqwc, wc);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2766 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2767 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2768 else if (br_elem->type == MB_CHAR)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2769 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2770 return __collseq_table_lookup (collseqwc, br_elem->opr.wch);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2771 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2772 else if (br_elem->type == COLL_SYM)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2773 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2774 size_t sym_name_len = strlen ((char *) br_elem->opr.name);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2775 if (nrules != 0)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2776 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2777 int32_t elem, idx;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2778 elem = seek_collating_symbol_entry (br_elem->opr.name,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2779 sym_name_len);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2780 if (symb_table[2 * elem] != 0)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2781 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2782 /* We found the entry. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2783 idx = symb_table[2 * elem + 1];
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2784 /* Skip the name of collating element name. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2785 idx += 1 + extra[idx];
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2786 /* Skip the byte sequence of the collating element. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2787 idx += 1 + extra[idx];
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2788 /* Adjust for the alignment. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2789 idx = (idx + 3) & ~3;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2790 /* Skip the multibyte collation sequence value. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2791 idx += sizeof (unsigned int);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2792 /* Skip the wide char sequence of the collating element. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2793 idx += sizeof (unsigned int) *
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2794 (1 + (unsigned int ) (extra + idx));
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2795 /* Return the collation sequence value. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2796 return (unsigned int ) (extra + idx);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2797 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2798 else if (symb_table[2 * elem] == 0 && sym_name_len == 1)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2799 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2800 /* No valid character. Match it as a single byte
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2801 character. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2802 return collseqmb[br_elem->opr.name[0]];
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2803 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2804 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2805 else if (sym_name_len == 1)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2806 return collseqmb[br_elem->opr.name[0]];
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2807 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2808 return UINT_MAX;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2809 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2810
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2811 /* Local function for parse_bracket_exp used in _LIBC environement.
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2812 Build the range expression which starts from START_ELEM, and ends
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2813 at END_ELEM. The result are written to MBCSET and SBCSET.
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2814 RANGE_ALLOC is the allocated size of mbcset->range_starts, and
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2815 mbcset->range_ends, is a pointer argument sinse we may
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2816 update it. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2817
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2818 auto inline reg_errcode_t
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2819 __attribute ((always_inline))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2820 build_range_exp (sbcset, mbcset, range_alloc, start_elem, end_elem)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2821 re_charset_t *mbcset;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2822 int *range_alloc;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2823 re_bitset_ptr_t sbcset;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2824 bracket_elem_t start_elem, end_elem;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2825 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2826 unsigned int ch;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2827 uint32_t start_collseq;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2828 uint32_t end_collseq;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2829
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2830 /* Equivalence Classes and Character Classes can't be a range
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2831 start/end. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2832 if (BE (start_elem->type == EQUIV_CLASS \|\| start_elem->type == CHAR_CLASS
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2833 \|\| end_elem->type == EQUIV_CLASS \|\| end_elem->type == CHAR_CLASS,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2834 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2835 return REG_ERANGE;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2836
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2837 start_collseq = lookup_collation_sequence_value (start_elem);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2838 end_collseq = lookup_collation_sequence_value (end_elem);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2839 /* Check start/end collation sequence values. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2840 if (BE (start_collseq == UINT_MAX \|\| end_collseq == UINT_MAX, 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2841 return REG_ECOLLATE;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2842 if (BE ((syntax & RE_NO_EMPTY_RANGES) && start_collseq > end_collseq, 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2843 return REG_ERANGE;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2844
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2845 /* Got valid collation sequence values, add them as a new entry.
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2846 However, if we have no collation elements, and the character set
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2847 is single byte, the single byte character set that we
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2848 build below suffices. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2849 if (nrules > 0 \|\| dfa->mb_cur_max > 1)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2850 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2851 /* Check the space of the arrays. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2852 if (BE (*range_alloc == mbcset->nranges, 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2853 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2854 /* There is not enough space, need realloc. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2855 uint32_t *new_array_start;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2856 uint32_t *new_array_end;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2857 int new_nranges;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2858
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2859 /* +1 in case of mbcset->nranges is 0. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2860 new_nranges = 2 * mbcset->nranges + 1;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2861 new_array_start = re_realloc (mbcset->range_starts, uint32_t,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2862 new_nranges);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2863 new_array_end = re_realloc (mbcset->range_ends, uint32_t,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2864 new_nranges);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2865
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2866 if (BE (new_array_start == NULL \|\| new_array_end == NULL, 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2867 return REG_ESPACE;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2868
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2869 mbcset->range_starts = new_array_start;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2870 mbcset->range_ends = new_array_end;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2871 *range_alloc = new_nranges;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2872 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2873
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2874 mbcset->range_starts[mbcset->nranges] = start_collseq;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2875 mbcset->range_ends[mbcset->nranges++] = end_collseq;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2876 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2877
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2878 /* Build the table for single byte characters. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2879 for (ch = 0; ch < SBC_MAX; ch++)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2880 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2881 uint32_t ch_collseq;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2882 /*
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2883 if (MB_CUR_MAX == 1)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2884 */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2885 if (nrules == 0)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2886 ch_collseq = collseqmb[ch];
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2887 else
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2888 ch_collseq = __collseq_table_lookup (collseqwc, __btowc (ch));
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2889 if (start_collseq <= ch_collseq && ch_collseq <= end_collseq)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2890 bitset_set (sbcset, ch);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2891 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2892 return REG_NOERROR;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2893 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2894
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2895 /* Local function for parse_bracket_exp used in _LIBC environement.
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2896 Build the collating element which is represented by NAME.
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2897 The result are written to MBCSET and SBCSET.
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2898 COLL_SYM_ALLOC is the allocated size of mbcset->coll_sym, is a
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2899 pointer argument sinse we may update it. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2900
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2901 auto inline reg_errcode_t
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2902 __attribute ((always_inline))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2903 build_collating_symbol (sbcset, mbcset, coll_sym_alloc, name)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2904 re_charset_t *mbcset;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2905 int *coll_sym_alloc;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2906 re_bitset_ptr_t sbcset;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2907 const unsigned char *name;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2908 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2909 int32_t elem, idx;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2910 size_t name_len = strlen ((const char *) name);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2911 if (nrules != 0)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2912 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2913 elem = seek_collating_symbol_entry (name, name_len);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2914 if (symb_table[2 * elem] != 0)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2915 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2916 /* We found the entry. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2917 idx = symb_table[2 * elem + 1];
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2918 /* Skip the name of collating element name. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2919 idx += 1 + extra[idx];
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2920 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2921 else if (symb_table[2 * elem] == 0 && name_len == 1)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2922 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2923 /* No valid character, treat it as a normal
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2924 character. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2925 bitset_set (sbcset, name[0]);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2926 return REG_NOERROR;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2927 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2928 else
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2929 return REG_ECOLLATE;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2930
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2931 /* Got valid collation sequence, add it as a new entry. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2932 /* Check the space of the arrays. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2933 if (BE (*coll_sym_alloc == mbcset->ncoll_syms, 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2934 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2935 /* Not enough, realloc it. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2936 /* +1 in case of mbcset->ncoll_syms is 0. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2937 int new_coll_sym_alloc = 2 * mbcset->ncoll_syms + 1;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2938 /* Use realloc since mbcset->coll_syms is NULL
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2939 if alloc == 0. /
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2940 int32_t *new_coll_syms = re_realloc (mbcset->coll_syms, int32_t,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2941 new_coll_sym_alloc);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2942 if (BE (new_coll_syms == NULL, 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2943 return REG_ESPACE;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2944 mbcset->coll_syms = new_coll_syms;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2945 *coll_sym_alloc = new_coll_sym_alloc;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2946 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2947 mbcset->coll_syms[mbcset->ncoll_syms++] = idx;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2948 return REG_NOERROR;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2949 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2950 else
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2951 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2952 if (BE (name_len != 1, 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2953 return REG_ECOLLATE;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2954 else
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2955 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2956 bitset_set (sbcset, name[0]);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2957 return REG_NOERROR;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2958 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2959 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2960 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2961 #endif
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2962
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2963 re_token_t br_token;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2964 re_bitset_ptr_t sbcset;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2965 #ifdef RE_ENABLE_I18N
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2966 re_charset_t *mbcset;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2967 int coll_sym_alloc = 0, range_alloc = 0, mbchar_alloc = 0;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2968 int equiv_class_alloc = 0, char_class_alloc = 0;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2969 #endif /* not RE_ENABLE_I18N */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2970 int non_match = 0;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2971 bin_tree_t *work_tree;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2972 int token_len;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2973 int first_round = 1;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2974 #ifdef _LIBC
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2975 collseqmb = (const unsigned char *)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2976 _NL_CURRENT (LC_COLLATE, _NL_COLLATE_COLLSEQMB);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2977 nrules = _NL_CURRENT_WORD (LC_COLLATE, _NL_COLLATE_NRULES);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2978 if (nrules)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2979 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2980 /*
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2981 if (MB_CUR_MAX > 1)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2982 */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2983 collseqwc = _NL_CURRENT (LC_COLLATE, _NL_COLLATE_COLLSEQWC);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2984 table_size = _NL_CURRENT_WORD (LC_COLLATE, _NL_COLLATE_SYMB_HASH_SIZEMB);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2985 symb_table = (const int32_t *) _NL_CURRENT (LC_COLLATE,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2986 _NL_COLLATE_SYMB_TABLEMB);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2987 extra = (const unsigned char *) _NL_CURRENT (LC_COLLATE,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2988 _NL_COLLATE_SYMB_EXTRAMB);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2989 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2990 #endif
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2991 sbcset = (re_bitset_ptr_t) calloc (sizeof (unsigned int), BITSET_UINTS);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2992 #ifdef RE_ENABLE_I18N
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2993 mbcset = (re_charset_t *) calloc (sizeof (re_charset_t), 1);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2994 #endif /* RE_ENABLE_I18N */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2995 #ifdef RE_ENABLE_I18N
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2996 if (BE (sbcset == NULL \|\| mbcset == NULL, 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2997 #else
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2998 if (BE (sbcset == NULL, 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2999 #endif /* RE_ENABLE_I18N */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3000 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3001 *err = REG_ESPACE;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3002 return NULL;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3003 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3004
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3005 token_len = peek_token_bracket (token, regexp, syntax);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3006 if (BE (token->type == END_OF_RE, 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3007 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3008 *err = REG_BADPAT;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3009 goto parse_bracket_exp_free_return;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3010 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3011 if (token->type == OP_NON_MATCH_LIST)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3012 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3013 #ifdef RE_ENABLE_I18N
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3014 mbcset->non_match = 1;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3015 #endif /* not RE_ENABLE_I18N */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3016 non_match = 1;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3017 if (syntax & RE_HAT_LISTS_NOT_NEWLINE)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3018 bitset_set (sbcset, '\0');
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3019 re_string_skip_bytes (regexp, token_len); /* Skip a token. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3020 token_len = peek_token_bracket (token, regexp, syntax);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3021 if (BE (token->type == END_OF_RE, 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3022 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3023 *err = REG_BADPAT;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3024 goto parse_bracket_exp_free_return;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3025 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3026 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3027
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3028 /* We treat the first ']' as a normal character. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3029 if (token->type == OP_CLOSE_BRACKET)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3030 token->type = CHARACTER;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3031
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3032 while (1)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3033 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3034 bracket_elem_t start_elem, end_elem;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3035 unsigned char start_name_buf[BRACKET_NAME_BUF_SIZE];
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3036 unsigned char end_name_buf[BRACKET_NAME_BUF_SIZE];
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3037 reg_errcode_t ret;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3038 int token_len2 = 0, is_range_exp = 0;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3039 re_token_t token2;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3040
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3041 start_elem.opr.name = start_name_buf;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3042 ret = parse_bracket_element (&start_elem, regexp, token, token_len, dfa,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3043 syntax, first_round);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3044 if (BE (ret != REG_NOERROR, 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3045 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3046 *err = ret;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3047 goto parse_bracket_exp_free_return;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3048 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3049 first_round = 0;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3050
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3051 /* Get information about the next token. We need it in any case. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3052 token_len = peek_token_bracket (token, regexp, syntax);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3053
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3054 /* Do not check for ranges if we know they are not allowed. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3055 if (start_elem.type != CHAR_CLASS && start_elem.type != EQUIV_CLASS)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3056 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3057 if (BE (token->type == END_OF_RE, 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3058 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3059 *err = REG_EBRACK;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3060 goto parse_bracket_exp_free_return;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3061 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3062 if (token->type == OP_CHARSET_RANGE)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3063 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3064 re_string_skip_bytes (regexp, token_len); /* Skip '-'. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3065 token_len2 = peek_token_bracket (&token2, regexp, syntax);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3066 if (BE (token2.type == END_OF_RE, 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3067 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3068 *err = REG_EBRACK;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3069 goto parse_bracket_exp_free_return;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3070 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3071 if (token2.type == OP_CLOSE_BRACKET)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3072 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3073 /* We treat the last '-' as a normal character. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3074 re_string_skip_bytes (regexp, -token_len);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3075 token->type = CHARACTER;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3076 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3077 else
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3078 is_range_exp = 1;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3079 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3080 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3081
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3082 if (is_range_exp == 1)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3083 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3084 end_elem.opr.name = end_name_buf;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3085 ret = parse_bracket_element (&end_elem, regexp, &token2, token_len2,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3086 dfa, syntax, 1);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3087 if (BE (ret != REG_NOERROR, 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3088 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3089 *err = ret;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3090 goto parse_bracket_exp_free_return;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3091 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3092
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3093 token_len = peek_token_bracket (token, regexp, syntax);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3094
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3095 #ifdef _LIBC
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3096 *err = build_range_exp (sbcset, mbcset, &range_alloc,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3097 &start_elem, &end_elem);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3098 #else
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3099 # ifdef RE_ENABLE_I18N
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3100 *err = build_range_exp (sbcset,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3101 dfa->mb_cur_max > 1 ? mbcset : NULL,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3102 &range_alloc, &start_elem, &end_elem);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3103 # else
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3104 *err = build_range_exp (sbcset, &start_elem, &end_elem);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3105 # endif
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3106 #endif /* RE_ENABLE_I18N */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3107 if (BE (*err != REG_NOERROR, 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3108 goto parse_bracket_exp_free_return;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3109 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3110 else
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3111 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3112 switch (start_elem.type)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3113 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3114 case SB_CHAR:
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3115 bitset_set (sbcset, start_elem.opr.ch);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3116 break;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3117 #ifdef RE_ENABLE_I18N
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3118 case MB_CHAR:
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3119 /* Check whether the array has enough space. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3120 if (BE (mbchar_alloc == mbcset->nmbchars, 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3121 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3122 wchar_t *new_mbchars;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3123 /* Not enough, realloc it. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3124 /* +1 in case of mbcset->nmbchars is 0. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3125 mbchar_alloc = 2 * mbcset->nmbchars + 1;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3126 /* Use realloc since array is NULL if alloc == 0. /
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3127 new_mbchars = re_realloc (mbcset->mbchars, wchar_t,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3128 mbchar_alloc);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3129 if (BE (new_mbchars == NULL, 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3130 goto parse_bracket_exp_espace;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3131 mbcset->mbchars = new_mbchars;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3132 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3133 mbcset->mbchars[mbcset->nmbchars++] = start_elem.opr.wch;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3134 break;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3135 #endif /* RE_ENABLE_I18N */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3136 case EQUIV_CLASS:
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3137 *err = build_equiv_class (sbcset,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3138 #ifdef RE_ENABLE_I18N
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3139 mbcset, &equiv_class_alloc,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3140 #endif /* RE_ENABLE_I18N */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3141 start_elem.opr.name);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3142 if (BE (*err != REG_NOERROR, 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3143 goto parse_bracket_exp_free_return;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3144 break;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3145 case COLL_SYM:
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3146 *err = build_collating_symbol (sbcset,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3147 #ifdef RE_ENABLE_I18N
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3148 mbcset, &coll_sym_alloc,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3149 #endif /* RE_ENABLE_I18N */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3150 start_elem.opr.name);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3151 if (BE (*err != REG_NOERROR, 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3152 goto parse_bracket_exp_free_return;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3153 break;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3154 case CHAR_CLASS:
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3155 *err = build_charclass (regexp->trans, sbcset,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3156 #ifdef RE_ENABLE_I18N
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3157 mbcset, &char_class_alloc,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3158 #endif /* RE_ENABLE_I18N */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3159 start_elem.opr.name, syntax);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3160 if (BE (*err != REG_NOERROR, 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3161 goto parse_bracket_exp_free_return;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3162 break;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3163 default:
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3164 assert (0);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3165 break;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3166 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3167 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3168 if (BE (token->type == END_OF_RE, 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3169 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3170 *err = REG_EBRACK;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3171 goto parse_bracket_exp_free_return;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3172 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3173 if (token->type == OP_CLOSE_BRACKET)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3174 break;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3175 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3176
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3177 re_string_skip_bytes (regexp, token_len); /* Skip a token. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3178
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3179 /* If it is non-matching list. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3180 if (non_match)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3181 bitset_not (sbcset);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3182
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3183 #ifdef RE_ENABLE_I18N
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3184 /* Ensure only single byte characters are set. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3185 if (dfa->mb_cur_max > 1)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3186 bitset_mask (sbcset, dfa->sb_char);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3187
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3188 if (mbcset->nmbchars \|\| mbcset->ncoll_syms \|\| mbcset->nequiv_classes
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3189 \|\| mbcset->nranges \|\| (dfa->mb_cur_max > 1 && (mbcset->nchar_classes
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3190 \|\| mbcset->non_match)))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3191 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3192 bin_tree_t *mbc_tree;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3193 int sbc_idx;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3194 /* Build a tree for complex bracket. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3195 dfa->has_mb_node = 1;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3196 br_token.type = COMPLEX_BRACKET;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3197 br_token.opr.mbcset = mbcset;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3198 mbc_tree = create_token_tree (dfa, NULL, NULL, &br_token);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3199 if (BE (mbc_tree == NULL, 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3200 goto parse_bracket_exp_espace;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3201 for (sbc_idx = 0; sbc_idx < BITSET_UINTS; ++sbc_idx)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3202 if (sbcset[sbc_idx])
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3203 break;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3204 /* If there are no bits set in sbcset, there is no point
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3205 of having both SIMPLE_BRACKET and COMPLEX_BRACKET. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3206 if (sbc_idx < BITSET_UINTS)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3207 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3208 /* Build a tree for simple bracket. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3209 br_token.type = SIMPLE_BRACKET;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3210 br_token.opr.sbcset = sbcset;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3211 work_tree = create_token_tree (dfa, NULL, NULL, &br_token);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3212 if (BE (work_tree == NULL, 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3213 goto parse_bracket_exp_espace;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3214
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3215 /* Then join them by ALT node. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3216 work_tree = create_tree (dfa, work_tree, mbc_tree, OP_ALT);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3217 if (BE (work_tree == NULL, 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3218 goto parse_bracket_exp_espace;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3219 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3220 else
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3221 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3222 re_free (sbcset);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3223 work_tree = mbc_tree;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3224 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3225 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3226 else
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3227 #endif /* not RE_ENABLE_I18N */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3228 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3229 #ifdef RE_ENABLE_I18N
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3230 free_charset (mbcset);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3231 #endif
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3232 /* Build a tree for simple bracket. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3233 br_token.type = SIMPLE_BRACKET;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3234 br_token.opr.sbcset = sbcset;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3235 work_tree = create_token_tree (dfa, NULL, NULL, &br_token);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3236 if (BE (work_tree == NULL, 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3237 goto parse_bracket_exp_espace;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3238 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3239 return work_tree;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3240
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3241 parse_bracket_exp_espace:
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3242 *err = REG_ESPACE;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3243 parse_bracket_exp_free_return:
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3244 re_free (sbcset);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3245 #ifdef RE_ENABLE_I18N
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3246 free_charset (mbcset);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3247 #endif /* RE_ENABLE_I18N */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3248 return NULL;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3249 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3250
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3251 /* Parse an element in the bracket expression. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3252
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3253 static reg_errcode_t
6076 e2dd51f6e259 * config/srclist.txt: Add glibc bugs 1220, 1221, 1222. Paul Eggert <eggert@cs.ucla.edu> parents: 6071 diff changeset	3254 parse_bracket_element (bracket_elem_t elem, re_string_t regexp,
e2dd51f6e259 * config/srclist.txt: Add glibc bugs 1220, 1221, 1222. Paul Eggert <eggert@cs.ucla.edu> parents: 6071 diff changeset	3255 re_token_t token, int token_len, re_dfa_t dfa,
e2dd51f6e259 * config/srclist.txt: Add glibc bugs 1220, 1221, 1222. Paul Eggert <eggert@cs.ucla.edu> parents: 6071 diff changeset	3256 reg_syntax_t syntax, int accept_hyphen)
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3257 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3258 #ifdef RE_ENABLE_I18N
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3259 int cur_char_size;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3260 cur_char_size = re_string_char_size_at (regexp, re_string_cur_idx (regexp));
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3261 if (cur_char_size > 1)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3262 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3263 elem->type = MB_CHAR;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3264 elem->opr.wch = re_string_wchar_at (regexp, re_string_cur_idx (regexp));
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3265 re_string_skip_bytes (regexp, cur_char_size);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3266 return REG_NOERROR;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3267 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3268 #endif /* RE_ENABLE_I18N */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3269 re_string_skip_bytes (regexp, token_len); /* Skip a token. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3270 if (token->type == OP_OPEN_COLL_ELEM \|\| token->type == OP_OPEN_CHAR_CLASS
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3271 \|\| token->type == OP_OPEN_EQUIV_CLASS)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3272 return parse_bracket_symbol (elem, regexp, token);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3273 if (BE (token->type == OP_CHARSET_RANGE, 0) && !accept_hyphen)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3274 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3275 /* A '-' must only appear as anything but a range indicator before
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3276 the closing bracket. Everything else is an error. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3277 re_token_t token2;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3278 (void) peek_token_bracket (&token2, regexp, syntax);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3279 if (token2.type != OP_CLOSE_BRACKET)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3280 /* The actual error value is not standardized since this whole
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3281 case is undefined. But ERANGE makes good sense. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3282 return REG_ERANGE;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3283 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3284 elem->type = SB_CHAR;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3285 elem->opr.ch = token->opr.c;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3286 return REG_NOERROR;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3287 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3288
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3289 /* Parse a bracket symbol in the bracket expression. Bracket symbols are
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3290 such as [:<character_class>:], [.<collating_element>.], and
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3291 [=<equivalent_class>=]. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3292
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3293 static reg_errcode_t
6076 e2dd51f6e259 * config/srclist.txt: Add glibc bugs 1220, 1221, 1222. Paul Eggert <eggert@cs.ucla.edu> parents: 6071 diff changeset	3294 parse_bracket_symbol (bracket_elem_t elem, re_string_t regexp,
e2dd51f6e259 * config/srclist.txt: Add glibc bugs 1220, 1221, 1222. Paul Eggert <eggert@cs.ucla.edu> parents: 6071 diff changeset	3295 re_token_t *token)
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3296 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3297 unsigned char ch, delim = token->opr.c;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3298 int i = 0;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3299 if (re_string_eoi(regexp))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3300 return REG_EBRACK;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3301 for (;; ++i)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3302 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3303 if (i >= BRACKET_NAME_BUF_SIZE)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3304 return REG_EBRACK;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3305 if (token->type == OP_OPEN_CHAR_CLASS)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3306 ch = re_string_fetch_byte_case (regexp);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3307 else
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3308 ch = re_string_fetch_byte (regexp);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3309 if (re_string_eoi(regexp))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3310 return REG_EBRACK;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3311 if (ch == delim && re_string_peek_byte (regexp, 0) == ']')
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3312 break;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3313 elem->opr.name[i] = ch;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3314 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3315 re_string_skip_bytes (regexp, 1);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3316 elem->opr.name[i] = '\0';
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3317 switch (token->type)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3318 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3319 case OP_OPEN_COLL_ELEM:
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3320 elem->type = COLL_SYM;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3321 break;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3322 case OP_OPEN_EQUIV_CLASS:
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3323 elem->type = EQUIV_CLASS;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3324 break;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3325 case OP_OPEN_CHAR_CLASS:
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3326 elem->type = CHAR_CLASS;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3327 break;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3328 default:
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3329 break;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3330 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3331 return REG_NOERROR;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3332 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3333
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3334 /* Helper function for parse_bracket_exp.
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3335 Build the equivalence class which is represented by NAME.
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3336 The result are written to MBCSET and SBCSET.
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3337 EQUIV_CLASS_ALLOC is the allocated size of mbcset->equiv_classes,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3338 is a pointer argument sinse we may update it. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3339
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3340 static reg_errcode_t
6076 e2dd51f6e259 * config/srclist.txt: Add glibc bugs 1220, 1221, 1222. Paul Eggert <eggert@cs.ucla.edu> parents: 6071 diff changeset	3341 build_equiv_class (re_bitset_ptr_t sbcset,
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3342 #ifdef RE_ENABLE_I18N
6076 e2dd51f6e259 * config/srclist.txt: Add glibc bugs 1220, 1221, 1222. Paul Eggert <eggert@cs.ucla.edu> parents: 6071 diff changeset	3343 re_charset_t mbcset, int equiv_class_alloc,
e2dd51f6e259 * config/srclist.txt: Add glibc bugs 1220, 1221, 1222. Paul Eggert <eggert@cs.ucla.edu> parents: 6071 diff changeset	3344 #endif
e2dd51f6e259 * config/srclist.txt: Add glibc bugs 1220, 1221, 1222. Paul Eggert <eggert@cs.ucla.edu> parents: 6071 diff changeset	3345 const unsigned char *name)
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3346 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3347 #if defined _LIBC
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3348 uint32_t nrules = _NL_CURRENT_WORD (LC_COLLATE, _NL_COLLATE_NRULES);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3349 if (nrules != 0)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3350 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3351 const int32_t table, indirect;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3352 const unsigned char weights, extra, *cp;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3353 unsigned char char_buf[2];
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3354 int32_t idx1, idx2;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3355 unsigned int ch;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3356 size_t len;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3357 /* This #include defines a local function! */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3358 # include <locale/weight.h>
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3359 /* Calculate the index for equivalence class. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3360 cp = name;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3361 table = (const int32_t *) _NL_CURRENT (LC_COLLATE, _NL_COLLATE_TABLEMB);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3362 weights = (const unsigned char *) _NL_CURRENT (LC_COLLATE,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3363 _NL_COLLATE_WEIGHTMB);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3364 extra = (const unsigned char *) _NL_CURRENT (LC_COLLATE,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3365 _NL_COLLATE_EXTRAMB);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3366 indirect = (const int32_t *) _NL_CURRENT (LC_COLLATE,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3367 _NL_COLLATE_INDIRECTMB);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3368 idx1 = findidx (&cp);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3369 if (BE (idx1 == 0 \|\| cp < name + strlen ((const char *) name), 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3370 /* This isn't a valid character. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3371 return REG_ECOLLATE;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3372
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3373 /* Build single byte matcing table for this equivalence class. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3374 char_buf[1] = (unsigned char) '\0';
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3375 len = weights[idx1];
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3376 for (ch = 0; ch < SBC_MAX; ++ch)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3377 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3378 char_buf[0] = ch;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3379 cp = char_buf;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3380 idx2 = findidx (&cp);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3381 /*
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3382 idx2 = table[ch];
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3383 */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3384 if (idx2 == 0)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3385 /* This isn't a valid character. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3386 continue;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3387 if (len == weights[idx2])
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3388 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3389 int cnt = 0;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3390 while (cnt <= len &&
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3391 weights[idx1 + 1 + cnt] == weights[idx2 + 1 + cnt])
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3392 ++cnt;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3393
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3394 if (cnt > len)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3395 bitset_set (sbcset, ch);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3396 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3397 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3398 /* Check whether the array has enough space. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3399 if (BE (*equiv_class_alloc == mbcset->nequiv_classes, 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3400 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3401 /* Not enough, realloc it. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3402 /* +1 in case of mbcset->nequiv_classes is 0. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3403 int new_equiv_class_alloc = 2 * mbcset->nequiv_classes + 1;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3404 /* Use realloc since the array is NULL if alloc == 0. /
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3405 int32_t *new_equiv_classes = re_realloc (mbcset->equiv_classes,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3406 int32_t,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3407 new_equiv_class_alloc);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3408 if (BE (new_equiv_classes == NULL, 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3409 return REG_ESPACE;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3410 mbcset->equiv_classes = new_equiv_classes;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3411 *equiv_class_alloc = new_equiv_class_alloc;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3412 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3413 mbcset->equiv_classes[mbcset->nequiv_classes++] = idx1;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3414 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3415 else
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3416 #endif /* _LIBC */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3417 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3418 if (BE (strlen ((const char *) name) != 1, 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3419 return REG_ECOLLATE;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3420 bitset_set (sbcset, *name);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3421 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3422 return REG_NOERROR;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3423 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3424
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3425 /* Helper function for parse_bracket_exp.
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3426 Build the character class which is represented by NAME.
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3427 The result are written to MBCSET and SBCSET.
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3428 CHAR_CLASS_ALLOC is the allocated size of mbcset->char_classes,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3429 is a pointer argument sinse we may update it. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3430
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3431 static reg_errcode_t
6076 e2dd51f6e259 * config/srclist.txt: Add glibc bugs 1220, 1221, 1222. Paul Eggert <eggert@cs.ucla.edu> parents: 6071 diff changeset	3432 build_charclass (unsigned RE_TRANSLATE_TYPE trans, re_bitset_ptr_t sbcset,
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3433 #ifdef RE_ENABLE_I18N
6076 e2dd51f6e259 * config/srclist.txt: Add glibc bugs 1220, 1221, 1222. Paul Eggert <eggert@cs.ucla.edu> parents: 6071 diff changeset	3434 re_charset_t mbcset, int char_class_alloc,
e2dd51f6e259 * config/srclist.txt: Add glibc bugs 1220, 1221, 1222. Paul Eggert <eggert@cs.ucla.edu> parents: 6071 diff changeset	3435 #endif
e2dd51f6e259 * config/srclist.txt: Add glibc bugs 1220, 1221, 1222. Paul Eggert <eggert@cs.ucla.edu> parents: 6071 diff changeset	3436 const unsigned char *class_name, reg_syntax_t syntax)
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3437 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3438 int i;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3439 const char name = (const char ) class_name;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3440
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3441 /* In case of REG_ICASE "upper" and "lower" match the both of
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3442 upper and lower cases. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3443 if ((syntax & RE_ICASE)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3444 && (strcmp (name, "upper") == 0 \|\| strcmp (name, "lower") == 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3445 name = "alpha";
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3446
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3447 #ifdef RE_ENABLE_I18N
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3448 /* Check the space of the arrays. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3449 if (BE (*char_class_alloc == mbcset->nchar_classes, 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3450 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3451 /* Not enough, realloc it. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3452 /* +1 in case of mbcset->nchar_classes is 0. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3453 int new_char_class_alloc = 2 * mbcset->nchar_classes + 1;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3454 /* Use realloc since array is NULL if alloc == 0. /
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3455 wctype_t *new_char_classes = re_realloc (mbcset->char_classes, wctype_t,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3456 new_char_class_alloc);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3457 if (BE (new_char_classes == NULL, 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3458 return REG_ESPACE;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3459 mbcset->char_classes = new_char_classes;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3460 *char_class_alloc = new_char_class_alloc;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3461 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3462 mbcset->char_classes[mbcset->nchar_classes++] = __wctype (name);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3463 #endif /* RE_ENABLE_I18N */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3464
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3465 #define BUILD_CHARCLASS_LOOP(ctype_func) \
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3466 for (i = 0; i < SBC_MAX; ++i) \
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3467 { \
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3468 if (ctype_func (i)) \
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3469 { \
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3470 int ch = trans ? trans[i] : i; \
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3471 bitset_set (sbcset, ch); \
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3472 } \
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3473 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3474
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3475 if (strcmp (name, "alnum") == 0)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3476 BUILD_CHARCLASS_LOOP (isalnum)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3477 else if (strcmp (name, "cntrl") == 0)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3478 BUILD_CHARCLASS_LOOP (iscntrl)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3479 else if (strcmp (name, "lower") == 0)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3480 BUILD_CHARCLASS_LOOP (islower)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3481 else if (strcmp (name, "space") == 0)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3482 BUILD_CHARCLASS_LOOP (isspace)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3483 else if (strcmp (name, "alpha") == 0)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3484 BUILD_CHARCLASS_LOOP (isalpha)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3485 else if (strcmp (name, "digit") == 0)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3486 BUILD_CHARCLASS_LOOP (isdigit)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3487 else if (strcmp (name, "print") == 0)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3488 BUILD_CHARCLASS_LOOP (isprint)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3489 else if (strcmp (name, "upper") == 0)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3490 BUILD_CHARCLASS_LOOP (isupper)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3491 else if (strcmp (name, "blank") == 0)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3492 BUILD_CHARCLASS_LOOP (isblank)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3493 else if (strcmp (name, "graph") == 0)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3494 BUILD_CHARCLASS_LOOP (isgraph)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3495 else if (strcmp (name, "punct") == 0)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3496 BUILD_CHARCLASS_LOOP (ispunct)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3497 else if (strcmp (name, "xdigit") == 0)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3498 BUILD_CHARCLASS_LOOP (isxdigit)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3499 else
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3500 return REG_ECTYPE;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3501
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3502 return REG_NOERROR;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3503 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3504
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3505 static bin_tree_t *
6076 e2dd51f6e259 * config/srclist.txt: Add glibc bugs 1220, 1221, 1222. Paul Eggert <eggert@cs.ucla.edu> parents: 6071 diff changeset	3506 build_charclass_op (re_dfa_t *dfa, unsigned RE_TRANSLATE_TYPE trans,
e2dd51f6e259 * config/srclist.txt: Add glibc bugs 1220, 1221, 1222. Paul Eggert <eggert@cs.ucla.edu> parents: 6071 diff changeset	3507 const unsigned char *class_name,
e2dd51f6e259 * config/srclist.txt: Add glibc bugs 1220, 1221, 1222. Paul Eggert <eggert@cs.ucla.edu> parents: 6071 diff changeset	3508 const unsigned char *extra,
e2dd51f6e259 * config/srclist.txt: Add glibc bugs 1220, 1221, 1222. Paul Eggert <eggert@cs.ucla.edu> parents: 6071 diff changeset	3509 int non_match, reg_errcode_t *err)
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3510 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3511 re_bitset_ptr_t sbcset;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3512 #ifdef RE_ENABLE_I18N
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3513 re_charset_t *mbcset;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3514 int alloc = 0;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3515 #endif /* not RE_ENABLE_I18N */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3516 reg_errcode_t ret;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3517 re_token_t br_token;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3518 bin_tree_t *tree;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3519
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3520 sbcset = (re_bitset_ptr_t) calloc (sizeof (unsigned int), BITSET_UINTS);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3521 #ifdef RE_ENABLE_I18N
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3522 mbcset = (re_charset_t *) calloc (sizeof (re_charset_t), 1);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3523 #endif /* RE_ENABLE_I18N */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3524
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3525 #ifdef RE_ENABLE_I18N
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3526 if (BE (sbcset == NULL \|\| mbcset == NULL, 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3527 #else /* not RE_ENABLE_I18N */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3528 if (BE (sbcset == NULL, 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3529 #endif /* not RE_ENABLE_I18N */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3530 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3531 *err = REG_ESPACE;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3532 return NULL;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3533 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3534
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3535 if (non_match)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3536 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3537 #ifdef RE_ENABLE_I18N
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3538 /*
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3539 if (syntax & RE_HAT_LISTS_NOT_NEWLINE)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3540 bitset_set(cset->sbcset, '\0');
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3541 */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3542 mbcset->non_match = 1;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3543 #endif /* not RE_ENABLE_I18N */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3544 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3545
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3546 /* We don't care the syntax in this case. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3547 ret = build_charclass (trans, sbcset,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3548 #ifdef RE_ENABLE_I18N
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3549 mbcset, &alloc,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3550 #endif /* RE_ENABLE_I18N */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3551 class_name, 0);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3552
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3553 if (BE (ret != REG_NOERROR, 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3554 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3555 re_free (sbcset);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3556 #ifdef RE_ENABLE_I18N
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3557 free_charset (mbcset);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3558 #endif /* RE_ENABLE_I18N */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3559 *err = ret;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3560 return NULL;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3561 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3562 /* \w match '_' also. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3563 for (; *extra; extra++)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3564 bitset_set (sbcset, *extra);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3565
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3566 /* If it is non-matching list. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3567 if (non_match)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3568 bitset_not (sbcset);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3569
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3570 #ifdef RE_ENABLE_I18N
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3571 /* Ensure only single byte characters are set. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3572 if (dfa->mb_cur_max > 1)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3573 bitset_mask (sbcset, dfa->sb_char);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3574 #endif
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3575
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3576 /* Build a tree for simple bracket. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3577 br_token.type = SIMPLE_BRACKET;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3578 br_token.opr.sbcset = sbcset;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3579 tree = create_token_tree (dfa, NULL, NULL, &br_token);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3580 if (BE (tree == NULL, 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3581 goto build_word_op_espace;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3582
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3583 #ifdef RE_ENABLE_I18N
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3584 if (dfa->mb_cur_max > 1)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3585 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3586 bin_tree_t *mbc_tree;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3587 /* Build a tree for complex bracket. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3588 br_token.type = COMPLEX_BRACKET;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3589 br_token.opr.mbcset = mbcset;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3590 dfa->has_mb_node = 1;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3591 mbc_tree = create_token_tree (dfa, NULL, NULL, &br_token);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3592 if (BE (mbc_tree == NULL, 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3593 goto build_word_op_espace;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3594 /* Then join them by ALT node. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3595 tree = create_tree (dfa, tree, mbc_tree, OP_ALT);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3596 if (BE (mbc_tree != NULL, 1))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3597 return tree;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3598 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3599 else
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3600 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3601 free_charset (mbcset);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3602 return tree;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3603 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3604 #else /* not RE_ENABLE_I18N */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3605 return tree;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3606 #endif /* not RE_ENABLE_I18N */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3607
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3608 build_word_op_espace:
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3609 re_free (sbcset);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3610 #ifdef RE_ENABLE_I18N
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3611 free_charset (mbcset);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3612 #endif /* RE_ENABLE_I18N */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3613 *err = REG_ESPACE;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3614 return NULL;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3615 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3616
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3617 /* This is intended for the expressions like "a{1,3}".
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3618 Fetch a number from `input', and return the number.
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3619 Return -1, if the number field is empty like "{,1}".
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3620 Return -2, If an error is occured. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3621
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3622 static int
6076 e2dd51f6e259 * config/srclist.txt: Add glibc bugs 1220, 1221, 1222. Paul Eggert <eggert@cs.ucla.edu> parents: 6071 diff changeset	3623 fetch_number (re_string_t input, re_token_t token, reg_syntax_t syntax)
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3624 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3625 int num = -1;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3626 unsigned char c;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3627 while (1)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3628 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3629 fetch_token (token, input, syntax);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3630 c = token->opr.c;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3631 if (BE (token->type == END_OF_RE, 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3632 return -2;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3633 if (token->type == OP_CLOSE_DUP_NUM \|\| c == ',')
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3634 break;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3635 num = ((token->type != CHARACTER \|\| c < '0' \|\| '9' < c \|\| num == -2)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3636 ? -2 : ((num == -1) ? c - '0' : num * 10 + c - '0'));
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3637 num = (num > RE_DUP_MAX) ? -2 : num;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3638 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3639 return num;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3640 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3641
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3642 #ifdef RE_ENABLE_I18N
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3643 static void
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3644 free_charset (re_charset_t *cset)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3645 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3646 re_free (cset->mbchars);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3647 # ifdef _LIBC
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3648 re_free (cset->coll_syms);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3649 re_free (cset->equiv_classes);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3650 re_free (cset->range_starts);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3651 re_free (cset->range_ends);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3652 # endif
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3653 re_free (cset->char_classes);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3654 re_free (cset);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3655 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3656 #endif /* RE_ENABLE_I18N */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3657
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3658 /* Functions for binary tree operation. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3659
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3660 /* Create a tree node. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3661
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3662 static bin_tree_t *
6076 e2dd51f6e259 * config/srclist.txt: Add glibc bugs 1220, 1221, 1222. Paul Eggert <eggert@cs.ucla.edu> parents: 6071 diff changeset	3663 create_tree (re_dfa_t dfa, bin_tree_t left, bin_tree_t *right,
e2dd51f6e259 * config/srclist.txt: Add glibc bugs 1220, 1221, 1222. Paul Eggert <eggert@cs.ucla.edu> parents: 6071 diff changeset	3664 re_token_type_t type)
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3665 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3666 re_token_t t;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3667 t.type = type;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3668 return create_token_tree (dfa, left, right, &t);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3669 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3670
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3671 static bin_tree_t *
6076 e2dd51f6e259 * config/srclist.txt: Add glibc bugs 1220, 1221, 1222. Paul Eggert <eggert@cs.ucla.edu> parents: 6071 diff changeset	3672 create_token_tree (re_dfa_t dfa, bin_tree_t left, bin_tree_t *right,
e2dd51f6e259 * config/srclist.txt: Add glibc bugs 1220, 1221, 1222. Paul Eggert <eggert@cs.ucla.edu> parents: 6071 diff changeset	3673 const re_token_t *token)
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3674 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3675 bin_tree_t *tree;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3676 if (BE (dfa->str_tree_storage_idx == BIN_TREE_STORAGE_SIZE, 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3677 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3678 bin_tree_storage_t *storage = re_malloc (bin_tree_storage_t, 1);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3679
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3680 if (storage == NULL)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3681 return NULL;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3682 storage->next = dfa->str_tree_storage;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3683 dfa->str_tree_storage = storage;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3684 dfa->str_tree_storage_idx = 0;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3685 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3686 tree = &dfa->str_tree_storage->data[dfa->str_tree_storage_idx++];
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3687
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3688 tree->parent = NULL;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3689 tree->left = left;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3690 tree->right = right;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3691 tree->token = *token;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3692 tree->token.duplicated = 0;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3693 tree->token.opt_subexp = 0;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3694 tree->first = NULL;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3695 tree->next = NULL;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3696 tree->node_idx = -1;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3697
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3698 if (left != NULL)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3699 left->parent = tree;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3700 if (right != NULL)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3701 right->parent = tree;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3702 return tree;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3703 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3704
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3705 /* Mark the tree SRC as an optional subexpression.
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3706 To be called from preorder or postorder. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3707
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3708 static reg_errcode_t
6076 e2dd51f6e259 * config/srclist.txt: Add glibc bugs 1220, 1221, 1222. Paul Eggert <eggert@cs.ucla.edu> parents: 6071 diff changeset	3709 mark_opt_subexp (void extra, bin_tree_t node)
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3710 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3711 int idx = (int) (long) extra;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3712 if (node->token.type == SUBEXP && node->token.opr.idx == idx)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3713 node->token.opt_subexp = 1;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3714
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3715 return REG_NOERROR;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3716 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3717
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3718 /* Free the allocated memory inside NODE. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3719
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3720 static void
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3721 free_token (re_token_t *node)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3722 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3723 #ifdef RE_ENABLE_I18N
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3724 if (node->type == COMPLEX_BRACKET && node->duplicated == 0)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3725 free_charset (node->opr.mbcset);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3726 else
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3727 #endif /* RE_ENABLE_I18N */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3728 if (node->type == SIMPLE_BRACKET && node->duplicated == 0)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3729 re_free (node->opr.sbcset);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3730 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3731
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3732 /* Worker function for tree walking. Free the allocated memory inside NODE
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3733 and its children. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3734
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3735 static reg_errcode_t
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3736 free_tree (void extra, bin_tree_t node)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3737 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3738 free_token (&node->token);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3739 return REG_NOERROR;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3740 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3741
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3742
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3743 /* Duplicate the node SRC, and return new node. This is a preorder
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3744 visit similar to the one implemented by the generic visitor, but
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3745 we need more infrastructure to maintain two parallel trees --- so,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3746 it's easier to duplicate. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3747
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3748 static bin_tree_t *
6076 e2dd51f6e259 * config/srclist.txt: Add glibc bugs 1220, 1221, 1222. Paul Eggert <eggert@cs.ucla.edu> parents: 6071 diff changeset	3749 duplicate_tree (const bin_tree_t root, re_dfa_t dfa)
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3750 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3751 const bin_tree_t *node;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3752 bin_tree_t *dup_root;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3753 bin_tree_t *p_new = &dup_root, dup_node = root->parent;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3754
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3755 for (node = root; ; )
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3756 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3757 /* Create a new tree and link it back to the current parent. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3758 *p_new = create_token_tree (dfa, NULL, NULL, &node->token);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3759 if (*p_new == NULL)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3760 return NULL;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3761 (*p_new)->parent = dup_node;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3762 (*p_new)->token.duplicated = 1;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3763 dup_node = *p_new;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3764
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3765 /* Go to the left node, or up and to the right. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3766 if (node->left)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3767 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3768 node = node->left;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3769 p_new = &dup_node->left;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3770 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3771 else
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3772 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3773 const bin_tree_t *prev = NULL;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3774 while (node->right == prev \|\| node->right == NULL)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3775 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3776 prev = node;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3777 node = node->parent;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3778 dup_node = dup_node->parent;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3779 if (!node)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3780 return dup_root;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3781 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3782 node = node->right;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3783 p_new = &dup_node->right;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3784 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3785 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3786 }

Mercurial > hg > octave-kai > gnulib-hg

annotate lib/regcomp.c @ 6077:25d446b8ec0e