gnulib: lib/regcomp.c annotate

annotate lib/regcomp.c @ 6171:5862ee08bfc1

* lib/regcomp.c (re_compile_fastmap_iter, init_dfa, init_word_char): (optimize_subexps, lower_subexp): Don't assume 1<<31 has defined behavior on hosts with 32-bit int, since the signed shift might overflow. Use 1u<<31 instead. * lib/regex_internal.h (bitset_set, bitset_clear, bitset_contain): Likewise. * lib/regexec.c (check_dst_limits_calc_pos_1): (check_subexp_matching_top): Likewise. * lib/regcomp.c (optimize_subexps, lower_subexp): Use CHAR_BIT rather than 8, for clarity. * lib/regexec.c (check_dst_limits_calc_pos_1): (check_subexp_matching_top): Likewise. * lib/regcomp.c (init_dfa): Make table_size unsigned, so that we don't have to worry about portability issues when shifting it left. Remove no-longer-needed test for table_size > 0. * lib/regcomp.c (parse_sub_exp): Do not shift more bits than there are in a word, as the resulting behavior is undefined. * lib/regexec.c (check_dst_limits_calc_pos_1): Likewise; in one case, a <= should have been an <, and in another case the whole test was missing. * lib/regex_internal.h (BYTE_BITS): Remove. All uses changed to the standard name CHAR_BIT. * lib/regexec.c (match_ctx_add_entry): Don't assume that ~0 == -1; this is not true on one's complement and signed-magnitude hosts.

author	Paul Eggert <eggert@cs.ucla.edu>
date	Wed, 31 Aug 2005 19:38:13 +0000
parents	a10e4460ad4c
children	6039b763ad3c

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 #ifdef RE_ENABLE_I18N
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	27 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	28 #endif /* RE_ENABLE_I18N */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	29 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	30 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	31 #ifdef RE_ENABLE_I18N
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	32 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	33 #endif
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	34 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	35 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	36 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	37 void *extra);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	38 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	39 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	40 void *extra);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	41 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	42 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	43 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	44 bin_tree_t *node);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	45 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	46 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	47 static reg_errcode_t link_nfa_nodes (void extra, bin_tree_t node);
6071 c1760162e42f (duplicate_node): Return new index, not an error code, Paul Eggert <eggert@cs.ucla.edu> parents: 5972 diff changeset	48 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	49 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	50 unsigned int constraint);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	51 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	52 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	53 int node, int root);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	54 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	55 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	56 reg_syntax_t syntax);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	57 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	58 reg_syntax_t syntax);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	59 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	60 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	61 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	62 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	63 int nest, reg_errcode_t *err);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	64 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	65 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	66 int nest, reg_errcode_t *err);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	67 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	68 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	69 int nest, reg_errcode_t *err);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	70 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	71 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	72 int nest, reg_errcode_t *err);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	73 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	74 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	75 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	76 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	77 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	78 reg_errcode_t *err);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	79 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	80 re_string_t *regexp,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	81 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	82 re_dfa_t *dfa,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	83 reg_syntax_t syntax,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	84 int accept_hyphen);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	85 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	86 re_string_t *regexp,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	87 re_token_t *token);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	88 #ifdef RE_ENABLE_I18N
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	89 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	90 re_charset_t *mbcset,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	91 int *equiv_class_alloc,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	92 const unsigned char *name);
6101 c9bcd4ba6b3f * config/srclist.txt: Add glibc bug 1237. Paul Eggert <eggert@cs.ucla.edu> parents: 6078 diff changeset	93 static reg_errcode_t build_charclass (unsigned REG_TRANSLATE_TYPE trans,
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	94 re_bitset_ptr_t sbcset,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	95 re_charset_t *mbcset,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	96 int *char_class_alloc,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	97 const unsigned char *class_name,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	98 reg_syntax_t syntax);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	99 #else /* not RE_ENABLE_I18N */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	100 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	101 const unsigned char *name);
6101 c9bcd4ba6b3f * config/srclist.txt: Add glibc bug 1237. Paul Eggert <eggert@cs.ucla.edu> parents: 6078 diff changeset	102 static reg_errcode_t build_charclass (unsigned REG_TRANSLATE_TYPE trans,
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	103 re_bitset_ptr_t sbcset,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	104 const unsigned char *class_name,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	105 reg_syntax_t syntax);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	106 #endif /* not RE_ENABLE_I18N */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	107 static bin_tree_t build_charclass_op (re_dfa_t dfa,
6101 c9bcd4ba6b3f * config/srclist.txt: Add glibc bug 1237. Paul Eggert <eggert@cs.ucla.edu> parents: 6078 diff changeset	108 unsigned REG_TRANSLATE_TYPE trans,
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	109 const unsigned char *class_name,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	110 const unsigned char *extra,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	111 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	112 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	113 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	114 re_token_type_t type);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	115 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	116 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	117 const re_token_t *token);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	118 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	119 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	120 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	121 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	122
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	123 /* 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	124 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	125 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	126 but why not be nice? */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	127
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	128 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	129 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	130 #define REG_NOERROR_IDX 0
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	131 gettext_noop ("Success") /* REG_NOERROR */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	132 "\0"
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	133 #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	134 gettext_noop ("No match") /* REG_NOMATCH */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	135 "\0"
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	136 #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	137 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	138 "\0"
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	139 #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	140 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	141 "\0"
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	142 #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	143 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	144 "\0"
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	145 #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	146 gettext_noop ("Trailing backslash") /* REG_EESCAPE */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	147 "\0"
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	148 #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	149 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	150 "\0"
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	151 #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	152 gettext_noop ("Unmatched [ or [^") /* REG_EBRACK */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	153 "\0"
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	154 #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	155 gettext_noop ("Unmatched ( or \\(") /* REG_EPAREN */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	156 "\0"
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	157 #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	158 gettext_noop ("Unmatched \\{") /* REG_EBRACE */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	159 "\0"
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	160 #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	161 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	162 "\0"
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	163 #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	164 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	165 "\0"
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	166 #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	167 gettext_noop ("Memory exhausted") /* REG_ESPACE */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	168 "\0"
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	169 #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	170 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	171 "\0"
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	172 #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	173 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	174 "\0"
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	175 #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	176 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	177 "\0"
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	178 #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	179 gettext_noop ("Unmatched ) or \\)") /* REG_ERPAREN */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	180 };
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	181
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	182 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	183 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	184 REG_NOERROR_IDX,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	185 REG_NOMATCH_IDX,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	186 REG_BADPAT_IDX,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	187 REG_ECOLLATE_IDX,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	188 REG_ECTYPE_IDX,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	189 REG_EESCAPE_IDX,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	190 REG_ESUBREG_IDX,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	191 REG_EBRACK_IDX,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	192 REG_EPAREN_IDX,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	193 REG_EBRACE_IDX,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	194 REG_BADBR_IDX,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	195 REG_ERANGE_IDX,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	196 REG_ESPACE_IDX,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	197 REG_BADRPT_IDX,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	198 REG_EEND_IDX,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	199 REG_ESIZE_IDX,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	200 REG_ERPAREN_IDX
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	201 };
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	202
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	203 /* Entry points for GNU code. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	204
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	205 /* 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	206 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	207 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	208
6101 c9bcd4ba6b3f * config/srclist.txt: Add glibc bug 1237. Paul Eggert <eggert@cs.ucla.edu> parents: 6078 diff changeset	209 Assumes the `re_allocated' (and perhaps `re_buffer') and `translate' fields
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	210 are set in BUFP on entry. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	211
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	212 const char *
6076 e2dd51f6e259 * config/srclist.txt: Add glibc bugs 1220, 1221, 1222. Paul Eggert <eggert@cs.ucla.edu> parents: 6071 diff changeset	213 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	214 struct re_pattern_buffer *bufp)
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	215 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	216 reg_errcode_t ret;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	217
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	218 /* 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	219 by passing null for the REGS argument to re_match, etc., not by
6101 c9bcd4ba6b3f * config/srclist.txt: Add glibc bug 1237. Paul Eggert <eggert@cs.ucla.edu> parents: 6078 diff changeset	220 setting re_no_sub, unless REG_NO_SUB is set. */
c9bcd4ba6b3f * config/srclist.txt: Add glibc bug 1237. Paul Eggert <eggert@cs.ucla.edu> parents: 6078 diff changeset	221 bufp->re_no_sub = !!(re_syntax_options & REG_NO_SUB);
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	222
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	223 /* Match anchors at newline. */
6101 c9bcd4ba6b3f * config/srclist.txt: Add glibc bug 1237. Paul Eggert <eggert@cs.ucla.edu> parents: 6078 diff changeset	224 bufp->re_newline_anchor = 1;
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	225
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	226 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	227
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	228 if (!ret)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	229 return NULL;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	230 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	231 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	232 #ifdef _LIBC
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	233 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	234 #endif
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	235
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	236 /* 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	237 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	238 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	239 /* 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	240 become read-only after dumping. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	241 reg_syntax_t re_syntax_options;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	242
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 /* 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	245 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	246 different, incompatible syntaxes.
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	247
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	248 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	249 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	250
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	251 reg_syntax_t
6076 e2dd51f6e259 * config/srclist.txt: Add glibc bugs 1220, 1221, 1222. Paul Eggert <eggert@cs.ucla.edu> parents: 6071 diff changeset	252 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	253 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	254 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	255
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	256 re_syntax_options = syntax;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	257 return ret;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	258 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	259 #ifdef _LIBC
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	260 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	261 #endif
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	262
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	263 int
6076 e2dd51f6e259 * config/srclist.txt: Add glibc bugs 1220, 1221, 1222. Paul Eggert <eggert@cs.ucla.edu> parents: 6071 diff changeset	264 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	265 {
6101 c9bcd4ba6b3f * config/srclist.txt: Add glibc bug 1237. Paul Eggert <eggert@cs.ucla.edu> parents: 6078 diff changeset	266 re_dfa_t dfa = (re_dfa_t ) bufp->re_buffer;
c9bcd4ba6b3f * config/srclist.txt: Add glibc bug 1237. Paul Eggert <eggert@cs.ucla.edu> parents: 6078 diff changeset	267 char *fastmap = bufp->re_fastmap;
5968 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 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	270 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	271 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	272 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	273 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	274 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	275 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	276 re_compile_fastmap_iter (bufp, dfa->init_state_begbuf, fastmap);
6101 c9bcd4ba6b3f * config/srclist.txt: Add glibc bug 1237. Paul Eggert <eggert@cs.ucla.edu> parents: 6078 diff changeset	277 bufp->re_fastmap_accurate = 1;
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	278 return 0;
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 #ifdef _LIBC
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	281 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	282 #endif
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	283
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	284 static inline void
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	285 __attribute ((always_inline))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	286 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	287 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	288 fastmap[ch] = 1;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	289 if (icase)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	290 fastmap[tolower (ch)] = 1;
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
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	293 /* Helper function for re_compile_fastmap.
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	294 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	295
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	296 static void
6076 e2dd51f6e259 * config/srclist.txt: Add glibc bugs 1220, 1221, 1222. Paul Eggert <eggert@cs.ucla.edu> parents: 6071 diff changeset	297 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	298 char *fastmap)
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	299 {
6101 c9bcd4ba6b3f * config/srclist.txt: Add glibc bug 1237. Paul Eggert <eggert@cs.ucla.edu> parents: 6078 diff changeset	300 re_dfa_t dfa = (re_dfa_t ) bufp->re_buffer;
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	301 int node_cnt;
6101 c9bcd4ba6b3f * config/srclist.txt: Add glibc bug 1237. Paul Eggert <eggert@cs.ucla.edu> parents: 6078 diff changeset	302 int icase = (dfa->mb_cur_max == 1 && (bufp->re_syntax & REG_IGNORE_CASE));
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	303 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	304 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	305 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	306 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	307
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	308 if (type == CHARACTER)
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 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	311 #ifdef RE_ENABLE_I18N
6101 c9bcd4ba6b3f * config/srclist.txt: Add glibc bug 1237. Paul Eggert <eggert@cs.ucla.edu> parents: 6078 diff changeset	312 if ((bufp->re_syntax & REG_IGNORE_CASE) && dfa->mb_cur_max > 1)
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	313 {
6119 c3bf2ea44695 Make regex safe for g++. This fixes one real bug (an "err" Paul Eggert <eggert@cs.ucla.edu> parents: 6104 diff changeset	314 unsigned char buf[MB_LEN_MAX];
c3bf2ea44695 Make regex safe for g++. This fixes one real bug (an "err" Paul Eggert <eggert@cs.ucla.edu> parents: 6104 diff changeset	315 unsigned char *p;
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	316 wchar_t wc;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	317 mbstate_t state;
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 p = buf;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	320 *p++ = dfa->nodes[node].opr.c;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	321 while (++node < dfa->nodes_len
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	322 && dfa->nodes[node].type == CHARACTER
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	323 && dfa->nodes[node].mb_partial)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	324 *p++ = dfa->nodes[node].opr.c;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	325 memset (&state, 0, sizeof (state));
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	326 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	327 &state) == p - buf
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	328 && (__wcrtomb ((char *) buf, towlower (wc), &state)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	329 != (size_t) -1))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	330 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	331 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	332 #endif
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 else if (type == SIMPLE_BRACKET)
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 int i, j, ch;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	337 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	338 for (j = 0; j < UINT_BITS; ++j, ++ch)
6171 5862ee08bfc1 * lib/regcomp.c (re_compile_fastmap_iter, init_dfa, init_word_char): Paul Eggert <eggert@cs.ucla.edu> parents: 6170 diff changeset	339 if (dfa->nodes[node].opr.sbcset[i] & (1u << j))
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	340 re_set_fastmap (fastmap, icase, ch);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	341 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	342 #ifdef RE_ENABLE_I18N
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	343 else if (type == COMPLEX_BRACKET)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	344 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	345 int i;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	346 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	347 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	348 \|\| cset->nranges \|\| cset->nchar_classes)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	349 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	350 # ifdef _LIBC
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	351 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	352 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	353 /* 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	354 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	355 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	356 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	357 '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	358 which starts from 'b'. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	359 int j, ch;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	360 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	361 _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	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 (table[ch] < 0)
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 # else
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	368 if (dfa->mb_cur_max > 1)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	369 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	370 if (__btowc (i) == WEOF)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	371 re_set_fastmap (fastmap, icase, i);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	372 # endif /* not _LIBC */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	373 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	374 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	375 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	376 char buf[256];
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	377 mbstate_t state;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	378 memset (&state, '\0', sizeof (state));
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	379 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	380 re_set_fastmap (fastmap, icase, (unsigned char ) buf);
6101 c9bcd4ba6b3f * config/srclist.txt: Add glibc bug 1237. Paul Eggert <eggert@cs.ucla.edu> parents: 6078 diff changeset	381 if ((bufp->re_syntax & REG_IGNORE_CASE) && dfa->mb_cur_max > 1)
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	382 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	383 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	384 != (size_t) -1)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	385 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	386 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	387 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	388 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	389 #endif /* RE_ENABLE_I18N */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	390 else if (type == OP_PERIOD
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	391 #ifdef RE_ENABLE_I18N
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	392 \|\| type == OP_UTF8_PERIOD
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	393 #endif /* RE_ENABLE_I18N */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	394 \|\| type == END_OF_RE)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	395 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	396 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	397 if (type == END_OF_RE)
6101 c9bcd4ba6b3f * config/srclist.txt: Add glibc bug 1237. Paul Eggert <eggert@cs.ucla.edu> parents: 6078 diff changeset	398 bufp->re_can_be_null = 1;
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	399 return;
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 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	402 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	403
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	404 /* Entry point for POSIX code. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	405 /* 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	406
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	407 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	408 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	409
6101 c9bcd4ba6b3f * config/srclist.txt: Add glibc bug 1237. Paul Eggert <eggert@cs.ucla.edu> parents: 6078 diff changeset	410 `re_buffer' to the compiled pattern;
c9bcd4ba6b3f * config/srclist.txt: Add glibc bug 1237. Paul Eggert <eggert@cs.ucla.edu> parents: 6078 diff changeset	411 `re_used' to the length of the compiled pattern;
c9bcd4ba6b3f * config/srclist.txt: Add glibc bug 1237. Paul Eggert <eggert@cs.ucla.edu> parents: 6078 diff changeset	412 `re_syntax' to REG_SYNTAX_POSIX_EXTENDED if the
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	413 REG_EXTENDED bit in CFLAGS is set; otherwise, to
6101 c9bcd4ba6b3f * config/srclist.txt: Add glibc bug 1237. Paul Eggert <eggert@cs.ucla.edu> parents: 6078 diff changeset	414 REG_SYNTAX_POSIX_BASIC;
c9bcd4ba6b3f * config/srclist.txt: Add glibc bug 1237. Paul Eggert <eggert@cs.ucla.edu> parents: 6078 diff changeset	415 `re_newline_anchor' to REG_NEWLINE being set in CFLAGS;
c9bcd4ba6b3f * config/srclist.txt: Add glibc bug 1237. Paul Eggert <eggert@cs.ucla.edu> parents: 6078 diff changeset	416 `re_fastmap' to an allocated space for the fastmap;
c9bcd4ba6b3f * config/srclist.txt: Add glibc bug 1237. Paul Eggert <eggert@cs.ucla.edu> parents: 6078 diff changeset	417 `re_fastmap_accurate' to zero;
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	418 `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	419
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	420 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	421
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	422 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	423
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	424 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	425 use POSIX basic syntax.
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 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	428 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	429
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	430 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	431 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	432
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	433 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	434 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	435 registers.
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	436
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	437 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	438 the return codes and their meanings.) */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	439
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	440 int
6076 e2dd51f6e259 * config/srclist.txt: Add glibc bugs 1220, 1221, 1222. Paul Eggert <eggert@cs.ucla.edu> parents: 6071 diff changeset	441 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	442 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	443 reg_errcode_t ret;
6101 c9bcd4ba6b3f * config/srclist.txt: Add glibc bug 1237. Paul Eggert <eggert@cs.ucla.edu> parents: 6078 diff changeset	444 reg_syntax_t syntax = ((cflags & REG_EXTENDED) ? REG_SYNTAX_POSIX_EXTENDED
c9bcd4ba6b3f * config/srclist.txt: Add glibc bug 1237. Paul Eggert <eggert@cs.ucla.edu> parents: 6078 diff changeset	445 : REG_SYNTAX_POSIX_BASIC);
c9bcd4ba6b3f * config/srclist.txt: Add glibc bug 1237. Paul Eggert <eggert@cs.ucla.edu> parents: 6078 diff changeset	446
c9bcd4ba6b3f * config/srclist.txt: Add glibc bug 1237. Paul Eggert <eggert@cs.ucla.edu> parents: 6078 diff changeset	447 preg->re_buffer = NULL;
c9bcd4ba6b3f * config/srclist.txt: Add glibc bug 1237. Paul Eggert <eggert@cs.ucla.edu> parents: 6078 diff changeset	448 preg->re_allocated = 0;
c9bcd4ba6b3f * config/srclist.txt: Add glibc bug 1237. Paul Eggert <eggert@cs.ucla.edu> parents: 6078 diff changeset	449 preg->re_used = 0;
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	450
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	451 /* Try to allocate space for the fastmap. */
6101 c9bcd4ba6b3f * config/srclist.txt: Add glibc bug 1237. Paul Eggert <eggert@cs.ucla.edu> parents: 6078 diff changeset	452 preg->re_fastmap = re_malloc (char, SBC_MAX);
c9bcd4ba6b3f * config/srclist.txt: Add glibc bug 1237. Paul Eggert <eggert@cs.ucla.edu> parents: 6078 diff changeset	453 if (BE (preg->re_fastmap == NULL, 0))
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	454 return REG_ESPACE;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	455
6101 c9bcd4ba6b3f * config/srclist.txt: Add glibc bug 1237. Paul Eggert <eggert@cs.ucla.edu> parents: 6078 diff changeset	456 syntax \|= (cflags & REG_ICASE) ? REG_IGNORE_CASE : 0;
5968 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_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	459 if (cflags & REG_NEWLINE)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	460 { /* REG_NEWLINE implies neither . nor [^...] match newline. */
6101 c9bcd4ba6b3f * config/srclist.txt: Add glibc bug 1237. Paul Eggert <eggert@cs.ucla.edu> parents: 6078 diff changeset	461 syntax &= ~REG_DOT_NEWLINE;
c9bcd4ba6b3f * config/srclist.txt: Add glibc bug 1237. Paul Eggert <eggert@cs.ucla.edu> parents: 6078 diff changeset	462 syntax \|= REG_HAT_LISTS_NOT_NEWLINE;
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	463 /* It also changes the matching behavior. */
6101 c9bcd4ba6b3f * config/srclist.txt: Add glibc bug 1237. Paul Eggert <eggert@cs.ucla.edu> parents: 6078 diff changeset	464 preg->re_newline_anchor = 1;
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	465 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	466 else
6101 c9bcd4ba6b3f * config/srclist.txt: Add glibc bug 1237. Paul Eggert <eggert@cs.ucla.edu> parents: 6078 diff changeset	467 preg->re_newline_anchor = 0;
c9bcd4ba6b3f * config/srclist.txt: Add glibc bug 1237. Paul Eggert <eggert@cs.ucla.edu> parents: 6078 diff changeset	468 preg->re_no_sub = !!(cflags & REG_NOSUB);
c9bcd4ba6b3f * config/srclist.txt: Add glibc bug 1237. Paul Eggert <eggert@cs.ucla.edu> parents: 6078 diff changeset	469 preg->re_translate = NULL;
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	470
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	471 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	472
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	473 /* 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	474 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	475 if (ret == REG_ERPAREN)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	476 ret = REG_EPAREN;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	477
6101 c9bcd4ba6b3f * config/srclist.txt: Add glibc bug 1237. Paul Eggert <eggert@cs.ucla.edu> parents: 6078 diff changeset	478 /* We have already checked preg->re_fastmap != NULL. */
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	479 if (BE (ret == REG_NOERROR, 1))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	480 /* 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	481 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	482 (void) re_compile_fastmap (preg);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	483 else
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	484 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	485 /* Some error occurred while compiling the expression. */
6101 c9bcd4ba6b3f * config/srclist.txt: Add glibc bug 1237. Paul Eggert <eggert@cs.ucla.edu> parents: 6078 diff changeset	486 re_free (preg->re_fastmap);
c9bcd4ba6b3f * config/srclist.txt: Add glibc bug 1237. Paul Eggert <eggert@cs.ucla.edu> parents: 6078 diff changeset	487 preg->re_fastmap = NULL;
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	488 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	489
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	490 return (int) ret;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	491 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	492 #ifdef _LIBC
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	493 weak_alias (__regcomp, regcomp)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	494 #endif
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 /* 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	497 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	498
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	499 size_t
6104 1e308ce32c4c * config/srclist.txt: Add glibc bug 1240. Paul Eggert <eggert@cs.ucla.edu> parents: 6101 diff changeset	500 regerror (int errcode, const regex_t *__restrict preg,
1e308ce32c4c * config/srclist.txt: Add glibc bug 1240. Paul Eggert <eggert@cs.ucla.edu> parents: 6101 diff changeset	501 char *__restrict errbuf, size_t errbuf_size)
5968 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 const char *msg;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	504 size_t msg_size;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	505
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	506 if (BE (errcode < 0
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	507 \|\| 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	508 / 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	509 /* 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	510 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	511 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	512 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	513 abort ();
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 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	516
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	517 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	518
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	519 if (BE (errbuf_size != 0, 1))
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 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	522 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	523 #if defined HAVE_MEMPCPY \|\| defined _LIBC
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	524 ((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	525 #else
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	526 memcpy (errbuf, msg, errbuf_size - 1);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	527 errbuf[errbuf_size - 1] = 0;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	528 #endif
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 else
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	531 memcpy (errbuf, msg, msg_size);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	532 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	533
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	534 return msg_size;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	535 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	536 #ifdef _LIBC
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	537 weak_alias (__regerror, regerror)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	538 #endif
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	539
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 #ifdef RE_ENABLE_I18N
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	542 /* 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	543 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	544 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	545 a worthwhile optimization. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	546 static const bitset utf8_sb_map =
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	547 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	548 /* Set the first 128 bits. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	549 # if UINT_MAX == 0xffffffff
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	550 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	551 # else
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	552 # 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	553 # endif
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	554 };
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	555 #endif
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 static void
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	559 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	560 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	561 int i, j;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	562
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	563 if (dfa->nodes)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	564 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	565 free_token (dfa->nodes + i);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	566 re_free (dfa->nexts);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	567 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	568 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	569 if (dfa->eclosures != NULL)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	570 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	571 if (dfa->inveclosures != NULL)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	572 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	573 if (dfa->edests != NULL)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	574 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	575 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	576 re_free (dfa->edests);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	577 re_free (dfa->eclosures);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	578 re_free (dfa->inveclosures);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	579 re_free (dfa->nodes);
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 if (dfa->state_table)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	582 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	583 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	584 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	585 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	586 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	587 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	588 free_state (state);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	589 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	590 re_free (entry->array);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	591 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	592 re_free (dfa->state_table);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	593 #ifdef RE_ENABLE_I18N
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	594 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	595 re_free (dfa->sb_char);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	596 #endif
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	597 re_free (dfa->subexp_map);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	598 #ifdef DEBUG
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	599 re_free (dfa->re_str);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	600 #endif
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	601
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	602 re_free (dfa);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	603 }
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
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	606 /* 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	607
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	608 void
6076 e2dd51f6e259 * config/srclist.txt: Add glibc bugs 1220, 1221, 1222. Paul Eggert <eggert@cs.ucla.edu> parents: 6071 diff changeset	609 regfree (regex_t *preg)
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	610 {
6101 c9bcd4ba6b3f * config/srclist.txt: Add glibc bug 1237. Paul Eggert <eggert@cs.ucla.edu> parents: 6078 diff changeset	611 re_dfa_t dfa = (re_dfa_t ) preg->re_buffer;
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	612 if (BE (dfa != NULL, 1))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	613 free_dfa_content (dfa);
6101 c9bcd4ba6b3f * config/srclist.txt: Add glibc bug 1237. Paul Eggert <eggert@cs.ucla.edu> parents: 6078 diff changeset	614 preg->re_buffer = NULL;
c9bcd4ba6b3f * config/srclist.txt: Add glibc bug 1237. Paul Eggert <eggert@cs.ucla.edu> parents: 6078 diff changeset	615 preg->re_allocated = 0;
c9bcd4ba6b3f * config/srclist.txt: Add glibc bug 1237. Paul Eggert <eggert@cs.ucla.edu> parents: 6078 diff changeset	616
c9bcd4ba6b3f * config/srclist.txt: Add glibc bug 1237. Paul Eggert <eggert@cs.ucla.edu> parents: 6078 diff changeset	617 re_free (preg->re_fastmap);
c9bcd4ba6b3f * config/srclist.txt: Add glibc bug 1237. Paul Eggert <eggert@cs.ucla.edu> parents: 6078 diff changeset	618 preg->re_fastmap = NULL;
c9bcd4ba6b3f * config/srclist.txt: Add glibc bug 1237. Paul Eggert <eggert@cs.ucla.edu> parents: 6078 diff changeset	619
c9bcd4ba6b3f * config/srclist.txt: Add glibc bug 1237. Paul Eggert <eggert@cs.ucla.edu> parents: 6078 diff changeset	620 re_free (preg->re_translate);
c9bcd4ba6b3f * config/srclist.txt: Add glibc bug 1237. Paul Eggert <eggert@cs.ucla.edu> parents: 6078 diff changeset	621 preg->re_translate = NULL;
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	622 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	623 #ifdef _LIBC
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	624 weak_alias (__regfree, regfree)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	625 #endif
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	626
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	627 /* 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	628 them unless specifically requested. */
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 #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	631
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	632 /* 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	633 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	634
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	635 char *
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	636 # ifdef _LIBC
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	637 /* 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	638 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	639 regcomp/regexec above without link errors. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	640 weak_function
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	641 # endif
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	642 re_comp (s)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	643 const char *s;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	644 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	645 reg_errcode_t ret;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	646 char *fastmap;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	647
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	648 if (!s)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	649 {
6101 c9bcd4ba6b3f * config/srclist.txt: Add glibc bug 1237. Paul Eggert <eggert@cs.ucla.edu> parents: 6078 diff changeset	650 if (!re_comp_buf.re_buffer)
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	651 return gettext ("No previous regular expression");
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	652 return 0;
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
6101 c9bcd4ba6b3f * config/srclist.txt: Add glibc bug 1237. Paul Eggert <eggert@cs.ucla.edu> parents: 6078 diff changeset	655 if (re_comp_buf.re_buffer)
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	656 {
6101 c9bcd4ba6b3f * config/srclist.txt: Add glibc bug 1237. Paul Eggert <eggert@cs.ucla.edu> parents: 6078 diff changeset	657 fastmap = re_comp_buf.re_fastmap;
c9bcd4ba6b3f * config/srclist.txt: Add glibc bug 1237. Paul Eggert <eggert@cs.ucla.edu> parents: 6078 diff changeset	658 re_comp_buf.re_fastmap = NULL;
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	659 __regfree (&re_comp_buf);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	660 memset (&re_comp_buf, '\0', sizeof (re_comp_buf));
6101 c9bcd4ba6b3f * config/srclist.txt: Add glibc bug 1237. Paul Eggert <eggert@cs.ucla.edu> parents: 6078 diff changeset	661 re_comp_buf.re_fastmap = fastmap;
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	662 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	663
6101 c9bcd4ba6b3f * config/srclist.txt: Add glibc bug 1237. Paul Eggert <eggert@cs.ucla.edu> parents: 6078 diff changeset	664 if (re_comp_buf.re_fastmap == NULL)
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	665 {
6101 c9bcd4ba6b3f * config/srclist.txt: Add glibc bug 1237. Paul Eggert <eggert@cs.ucla.edu> parents: 6078 diff changeset	666 re_comp_buf.re_fastmap = (char *) malloc (SBC_MAX);
c9bcd4ba6b3f * config/srclist.txt: Add glibc bug 1237. Paul Eggert <eggert@cs.ucla.edu> parents: 6078 diff changeset	667 if (re_comp_buf.re_fastmap == NULL)
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	668 return (char *) gettext (__re_error_msgid
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	669 + __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	670 }
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 /* 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	673 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	674
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	675 /* Match anchors at newlines. */
6101 c9bcd4ba6b3f * config/srclist.txt: Add glibc bug 1237. Paul Eggert <eggert@cs.ucla.edu> parents: 6078 diff changeset	676 re_comp_buf.re_newline_anchor = 1;
5968 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 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	679
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	680 if (!ret)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	681 return NULL;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	682
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	683 /* 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	684 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	685 }
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 #ifdef _LIBC
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	688 libc_freeres_fn (free_mem)
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 __regfree (&re_comp_buf);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	691 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	692 #endif
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	693
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	694 #endif /* _REGEX_RE_COMP */
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 /* Internal entry point.
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	697 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	698 SYNTAX indicate regular expression's syntax. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	699
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	700 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	701 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	702 reg_syntax_t syntax)
5968 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 reg_errcode_t err = REG_NOERROR;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	705 re_dfa_t *dfa;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	706 re_string_t regexp;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	707
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	708 /* Initialize the pattern buffer. */
6101 c9bcd4ba6b3f * config/srclist.txt: Add glibc bug 1237. Paul Eggert <eggert@cs.ucla.edu> parents: 6078 diff changeset	709 preg->re_fastmap_accurate = 0;
c9bcd4ba6b3f * config/srclist.txt: Add glibc bug 1237. Paul Eggert <eggert@cs.ucla.edu> parents: 6078 diff changeset	710 preg->re_syntax = syntax;
c9bcd4ba6b3f * config/srclist.txt: Add glibc bug 1237. Paul Eggert <eggert@cs.ucla.edu> parents: 6078 diff changeset	711 preg->re_not_bol = preg->re_not_eol = 0;
c9bcd4ba6b3f * config/srclist.txt: Add glibc bug 1237. Paul Eggert <eggert@cs.ucla.edu> parents: 6078 diff changeset	712 preg->re_used = 0;
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	713 preg->re_nsub = 0;
6101 c9bcd4ba6b3f * config/srclist.txt: Add glibc bug 1237. Paul Eggert <eggert@cs.ucla.edu> parents: 6078 diff changeset	714 preg->re_can_be_null = 0;
c9bcd4ba6b3f * config/srclist.txt: Add glibc bug 1237. Paul Eggert <eggert@cs.ucla.edu> parents: 6078 diff changeset	715 preg->re_regs_allocated = REG_UNALLOCATED;
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	716
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	717 /* Initialize the dfa. */
6101 c9bcd4ba6b3f * config/srclist.txt: Add glibc bug 1237. Paul Eggert <eggert@cs.ucla.edu> parents: 6078 diff changeset	718 dfa = (re_dfa_t *) preg->re_buffer;
c9bcd4ba6b3f * config/srclist.txt: Add glibc bug 1237. Paul Eggert <eggert@cs.ucla.edu> parents: 6078 diff changeset	719 if (BE (preg->re_allocated < sizeof (re_dfa_t), 0))
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	720 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	721 /* 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	722 enough space. This loses if buffer's address is bogus, but
6101 c9bcd4ba6b3f * config/srclist.txt: Add glibc bug 1237. Paul Eggert <eggert@cs.ucla.edu> parents: 6078 diff changeset	723 that is the user's responsibility. If buffer is null this
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	724 is a simple allocation. */
6101 c9bcd4ba6b3f * config/srclist.txt: Add glibc bug 1237. Paul Eggert <eggert@cs.ucla.edu> parents: 6078 diff changeset	725 dfa = re_realloc (preg->re_buffer, re_dfa_t, 1);
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	726 if (dfa == NULL)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	727 return REG_ESPACE;
6101 c9bcd4ba6b3f * config/srclist.txt: Add glibc bug 1237. Paul Eggert <eggert@cs.ucla.edu> parents: 6078 diff changeset	728 preg->re_allocated = sizeof (re_dfa_t);
c9bcd4ba6b3f * config/srclist.txt: Add glibc bug 1237. Paul Eggert <eggert@cs.ucla.edu> parents: 6078 diff changeset	729 preg->re_buffer = (unsigned char *) dfa;
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	730 }
6101 c9bcd4ba6b3f * config/srclist.txt: Add glibc bug 1237. Paul Eggert <eggert@cs.ucla.edu> parents: 6078 diff changeset	731 preg->re_used = sizeof (re_dfa_t);
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	732
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	733 __libc_lock_init (dfa->lock);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	734
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	735 err = init_dfa (dfa, length);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	736 if (BE (err != REG_NOERROR, 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	737 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	738 free_dfa_content (dfa);
6101 c9bcd4ba6b3f * config/srclist.txt: Add glibc bug 1237. Paul Eggert <eggert@cs.ucla.edu> parents: 6078 diff changeset	739 preg->re_buffer = NULL;
c9bcd4ba6b3f * config/srclist.txt: Add glibc bug 1237. Paul Eggert <eggert@cs.ucla.edu> parents: 6078 diff changeset	740 preg->re_allocated = 0;
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	741 return err;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	742 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	743 #ifdef DEBUG
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	744 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	745 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	746 #endif
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	747
6101 c9bcd4ba6b3f * config/srclist.txt: Add glibc bug 1237. Paul Eggert <eggert@cs.ucla.edu> parents: 6078 diff changeset	748 err = re_string_construct (&regexp, pattern, length, preg->re_translate,
c9bcd4ba6b3f * config/srclist.txt: Add glibc bug 1237. Paul Eggert <eggert@cs.ucla.edu> parents: 6078 diff changeset	749 syntax & REG_IGNORE_CASE, dfa);
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	750 if (BE (err != REG_NOERROR, 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	751 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	752 re_compile_internal_free_return:
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	753 free_workarea_compile (preg);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	754 re_string_destruct (&regexp);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	755 free_dfa_content (dfa);
6101 c9bcd4ba6b3f * config/srclist.txt: Add glibc bug 1237. Paul Eggert <eggert@cs.ucla.edu> parents: 6078 diff changeset	756 preg->re_buffer = NULL;
c9bcd4ba6b3f * config/srclist.txt: Add glibc bug 1237. Paul Eggert <eggert@cs.ucla.edu> parents: 6078 diff changeset	757 preg->re_allocated = 0;
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	758 return err;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	759 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	760
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	761 /* 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	762 preg->re_nsub = 0;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	763 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	764 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	765 goto re_compile_internal_free_return;
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 /* 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	768 err = analyze (preg);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	769 if (BE (err != REG_NOERROR, 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	770 goto re_compile_internal_free_return;
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 #ifdef RE_ENABLE_I18N
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	773 /* If possible, do searching in single byte encoding to speed things up. */
6101 c9bcd4ba6b3f * config/srclist.txt: Add glibc bug 1237. Paul Eggert <eggert@cs.ucla.edu> parents: 6078 diff changeset	774 if (dfa->is_utf8 && !(syntax & REG_IGNORE_CASE) && preg->re_translate == NULL)
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	775 optimize_utf8 (dfa);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	776 #endif
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	777
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	778 /* 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	779 err = create_initial_state (dfa);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	780
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	781 /* Release work areas. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	782 free_workarea_compile (preg);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	783 re_string_destruct (&regexp);
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 if (BE (err != REG_NOERROR, 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	786 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	787 free_dfa_content (dfa);
6101 c9bcd4ba6b3f * config/srclist.txt: Add glibc bug 1237. Paul Eggert <eggert@cs.ucla.edu> parents: 6078 diff changeset	788 preg->re_buffer = NULL;
c9bcd4ba6b3f * config/srclist.txt: Add glibc bug 1237. Paul Eggert <eggert@cs.ucla.edu> parents: 6078 diff changeset	789 preg->re_allocated = 0;
5968 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
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	792 return err;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	793 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	794
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	795 /* 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	796 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	797
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	798 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	799 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	800 {
6171 5862ee08bfc1 * lib/regcomp.c (re_compile_fastmap_iter, init_dfa, init_word_char): Paul Eggert <eggert@cs.ucla.edu> parents: 6170 diff changeset	801 unsigned int table_size;
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	802 #ifndef _LIBC
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	803 char *codeset_name;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	804 #endif
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	805
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	806 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	807
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	808 /* 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	809 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	810
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	811 dfa->nodes_alloc = pat_len + 1;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	812 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	813
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	814 /* table_size = 2 ^ ceil(log pat_len) */
6171 5862ee08bfc1 * lib/regcomp.c (re_compile_fastmap_iter, init_dfa, init_word_char): Paul Eggert <eggert@cs.ucla.edu> parents: 6170 diff changeset	815 for (table_size = 1; ; table_size <<= 1)
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	816 if (table_size > pat_len)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	817 break;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	818
6119 c3bf2ea44695 Make regex safe for g++. This fixes one real bug (an "err" Paul Eggert <eggert@cs.ucla.edu> parents: 6104 diff changeset	819 dfa->state_table = re_calloc (struct re_state_table_entry, table_size);
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	820 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	821
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	822 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	823 #ifdef _LIBC
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	824 if (dfa->mb_cur_max == 6
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	825 && 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	826 dfa->is_utf8 = 1;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	827 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	828 != 0);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	829 #else
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	830 # ifdef HAVE_LANGINFO_CODESET
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	831 codeset_name = nl_langinfo (CODESET);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	832 # else
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	833 codeset_name = getenv ("LC_ALL");
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	834 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	835 codeset_name = getenv ("LC_CTYPE");
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	836 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	837 codeset_name = getenv ("LANG");
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	838 if (codeset_name == NULL)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	839 codeset_name = "";
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	840 else if (strchr (codeset_name, '.') != NULL)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	841 codeset_name = strchr (codeset_name, '.') + 1;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	842 # endif
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	843
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	844 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	845 \|\| strcasecmp (codeset_name, "UTF8") == 0)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	846 dfa->is_utf8 = 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 /* 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	849 superset of ASCII. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	850 dfa->map_notascii = 0;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	851 #endif
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	852
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	853 #ifdef RE_ENABLE_I18N
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	854 if (dfa->mb_cur_max > 1)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	855 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	856 if (dfa->is_utf8)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	857 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	858 else
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	859 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	860 int i, j, ch;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	861
6119 c3bf2ea44695 Make regex safe for g++. This fixes one real bug (an "err" Paul Eggert <eggert@cs.ucla.edu> parents: 6104 diff changeset	862 dfa->sb_char = re_calloc (unsigned int, BITSET_UINTS);
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	863 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	864 return REG_ESPACE;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	865
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	866 /* 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	867 byte chars. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	868 bitset_empty (dfa->sb_char);
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 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	871 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	872 {
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	873 wint_t wch = __btowc (ch);
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	874 if (wch != WEOF)
6171 5862ee08bfc1 * lib/regcomp.c (re_compile_fastmap_iter, init_dfa, init_word_char): Paul Eggert <eggert@cs.ucla.edu> parents: 6170 diff changeset	875 dfa->sb_char[i] \|= 1u << j;
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	876 # 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	877 if (isascii (ch) && wch != ch)
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	878 dfa->map_notascii = 1;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	879 # endif
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	880 }
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 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	883 #endif
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	884
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	885 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	886 return REG_ESPACE;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	887 return REG_NOERROR;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	888 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	889
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	890 /* 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	891 "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	892 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	893
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	894 static void
6076 e2dd51f6e259 * config/srclist.txt: Add glibc bugs 1220, 1221, 1222. Paul Eggert <eggert@cs.ucla.edu> parents: 6071 diff changeset	895 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	896 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	897 int i, j, ch;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	898 dfa->word_ops_used = 1;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	899 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	900 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	901 if (isalnum (ch) \|\| ch == '_')
6171 5862ee08bfc1 * lib/regcomp.c (re_compile_fastmap_iter, init_dfa, init_word_char): Paul Eggert <eggert@cs.ucla.edu> parents: 6170 diff changeset	902 dfa->word_char[i] \|= 1u << j;
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	903 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	904
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	905 /* 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	906
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	907 static void
6076 e2dd51f6e259 * config/srclist.txt: Add glibc bugs 1220, 1221, 1222. Paul Eggert <eggert@cs.ucla.edu> parents: 6071 diff changeset	908 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	909 {
6101 c9bcd4ba6b3f * config/srclist.txt: Add glibc bug 1237. Paul Eggert <eggert@cs.ucla.edu> parents: 6078 diff changeset	910 re_dfa_t dfa = (re_dfa_t ) preg->re_buffer;
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	911 bin_tree_storage_t storage, next;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	912 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	913 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	914 next = storage->next;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	915 re_free (storage);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	916 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	917 dfa->str_tree_storage = NULL;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	918 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	919 dfa->str_tree = NULL;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	920 re_free (dfa->org_indices);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	921 dfa->org_indices = NULL;
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
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	924 /* Create initial states for all contexts. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	925
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	926 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	927 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	928 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	929 int first, i;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	930 reg_errcode_t err;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	931 re_node_set init_nodes;
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 /* 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	934 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	935 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	936 dfa->init_node = first;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	937 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	938 if (BE (err != REG_NOERROR, 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	939 return err;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	940
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	941 /* 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	942 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	943 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	944 the back-references. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	945 if (dfa->nbackref > 0)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	946 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	947 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	948 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	949 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	950
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	951 int clexp_idx;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	952 if (type != OP_BACK_REF)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	953 continue;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	954 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	955 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	956 re_token_t *clexp_node;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	957 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	958 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	959 && 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	960 break;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	961 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	962 if (clexp_idx == init_nodes.nelem)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	963 continue;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	964
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	965 if (type == OP_BACK_REF)
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 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	968 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	969 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	970 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	971 i = 0;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	972 }
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 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	975
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	976 /* 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	977 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	978 /* 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	979 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	980 return err;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	981 if (dfa->init_state->has_constraint)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	982 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	983 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	984 CONTEXT_WORD);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	985 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	986 CONTEXT_NEWLINE);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	987 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	988 &init_nodes,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	989 CONTEXT_NEWLINE
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	990 \| CONTEXT_BEGBUF);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	991 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	992 \|\| dfa->init_state_begbuf == NULL, 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	993 return err;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	994 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	995 else
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	996 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	997 = 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	998
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	999 re_node_set_free (&init_nodes);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1000 return REG_NOERROR;
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
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1003 #ifdef RE_ENABLE_I18N
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1004 /* 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	1005 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	1006 DFA nodes where needed. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1007
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1008 static void
6076 e2dd51f6e259 * config/srclist.txt: Add glibc bugs 1220, 1221, 1222. Paul Eggert <eggert@cs.ucla.edu> parents: 6071 diff changeset	1009 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	1010 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1011 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	1012
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1013 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	1014 switch (dfa->nodes[node].type)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1015 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1016 case CHARACTER:
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1017 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	1018 mb_chars = 1;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1019 break;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1020 case ANCHOR:
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1021 switch (dfa->nodes[node].opr.idx)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1022 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1023 case LINE_FIRST:
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1024 case LINE_LAST:
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1025 case BUF_FIRST:
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1026 case BUF_LAST:
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1027 break;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1028 default:
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1029 /* Word anchors etc. cannot be handled. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1030 return;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1031 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1032 break;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1033 case OP_PERIOD:
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1034 has_period = 1;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1035 break;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1036 case OP_BACK_REF:
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1037 case OP_ALT:
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1038 case END_OF_RE:
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1039 case OP_DUP_ASTERISK:
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1040 case OP_OPEN_SUBEXP:
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1041 case OP_CLOSE_SUBEXP:
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1042 break;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1043 case COMPLEX_BRACKET:
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1044 return;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1045 case SIMPLE_BRACKET:
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1046 /* Just double check. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1047 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	1048 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	1049 return;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1050 break;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1051 default:
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1052 abort ();
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1053 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1054
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1055 if (mb_chars \|\| has_period)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1056 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	1057 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1058 if (dfa->nodes[node].type == CHARACTER
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1059 && dfa->nodes[node].opr.c >= 0x80)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1060 dfa->nodes[node].mb_partial = 0;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1061 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	1062 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	1063 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1064
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1065 /* 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	1066 dfa->mb_cur_max = 1;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1067 dfa->is_utf8 = 0;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1068 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	1069 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1070 #endif
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1071
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1072 /* 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	1073 "eclosure", and "inveclosure". */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1074
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1075 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	1076 analyze (regex_t *preg)
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1077 {
6101 c9bcd4ba6b3f * config/srclist.txt: Add glibc bug 1237. Paul Eggert <eggert@cs.ucla.edu> parents: 6078 diff changeset	1078 re_dfa_t dfa = (re_dfa_t ) preg->re_buffer;
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1079 reg_errcode_t ret;
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 /* Allocate arrays. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1082 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	1083 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	1084 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	1085 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	1086 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	1087 \|\| dfa->eclosures == NULL, 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1088 return REG_ESPACE;
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 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	1091 if (dfa->subexp_map != NULL)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1092 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1093 int i;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1094 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	1095 dfa->subexp_map[i] = i;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1096 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	1097 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	1098 if (dfa->subexp_map[i] != i)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1099 break;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1100 if (i == preg->re_nsub)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1101 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1102 free (dfa->subexp_map);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1103 dfa->subexp_map = NULL;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1104 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1105 }
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 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	1108 if (BE (ret != REG_NOERROR, 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1109 return ret;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1110 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	1111 if (BE (ret != REG_NOERROR, 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1112 return ret;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1113 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	1114 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	1115 if (BE (ret != REG_NOERROR, 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1116 return ret;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1117 ret = calc_eclosure (dfa);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1118 if (BE (ret != REG_NOERROR, 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1119 return ret;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1120
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1121 /* 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	1122 skip it if p_i_n will not run, as calc_inveclosure can be quadratic. */
6101 c9bcd4ba6b3f * config/srclist.txt: Add glibc bug 1237. Paul Eggert <eggert@cs.ucla.edu> parents: 6078 diff changeset	1123 if ((!preg->re_no_sub && preg->re_nsub > 0 && dfa->has_plural_match)
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1124 \|\| dfa->nbackref)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1125 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1126 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	1127 if (BE (dfa->inveclosures == NULL, 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1128 return REG_ESPACE;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1129 ret = calc_inveclosure (dfa);
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 return ret;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1133 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1134
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1135 /* 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	1136 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	1137 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	1138 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	1139 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	1140 void *extra)
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1141 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1142 bin_tree_t node, prev;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1143
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1144 for (node = root; ; )
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1145 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1146 /* 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	1147 if that's the only child). */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1148 while (node->left \|\| node->right)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1149 if (node->left)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1150 node = node->left;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1151 else
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1152 node = node->right;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1153
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1154 do
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1155 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1156 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	1157 if (BE (err != REG_NOERROR, 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1158 return err;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1159 if (node->parent == NULL)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1160 return REG_NOERROR;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1161 prev = node;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1162 node = node->parent;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1163 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1164 /* 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	1165 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	1166 node = node->right;
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 }
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 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	1171 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	1172 void *extra)
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1173 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1174 bin_tree_t *node;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1175
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1176 for (node = root; ; )
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1177 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1178 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	1179 if (BE (err != REG_NOERROR, 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1180 return err;
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 /* 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	1183 if (node->left)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1184 node = node->left;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1185 else
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1186 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1187 bin_tree_t *prev = NULL;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1188 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	1189 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1190 prev = node;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1191 node = node->parent;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1192 if (!node)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1193 return REG_NOERROR;
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 node = node->right;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1196 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1197 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1198 }
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 /* 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	1201 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	1202 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	1203 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	1204 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	1205 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1206 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	1207
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1208 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	1209 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1210 int idx = node->token.opr.idx;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1211 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	1212 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	1213 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1214
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1215 else if (node->token.type == SUBEXP
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1216 && 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	1217 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1218 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	1219
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1220 node->left = node->left->left;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1221 if (node->left)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1222 node->left->parent = node;
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 dfa->subexp_map[other_idx] = dfa->subexp_map[node->token.opr.idx];
6171 5862ee08bfc1 * lib/regcomp.c (re_compile_fastmap_iter, init_dfa, init_word_char): Paul Eggert <eggert@cs.ucla.edu> parents: 6170 diff changeset	1225 if (other_idx < CHAR_BIT * sizeof dfa->used_bkref_map)
5862ee08bfc1 * lib/regcomp.c (re_compile_fastmap_iter, init_dfa, init_word_char): Paul Eggert <eggert@cs.ucla.edu> parents: 6170 diff changeset	1226 dfa->used_bkref_map &= ~(1u << other_idx);
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1227 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1228
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1229 return REG_NOERROR;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1230 }
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 /* 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	1233 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	1234 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	1235 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	1236 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1237 regex_t preg = (regex_t ) extra;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1238 reg_errcode_t err = REG_NOERROR;
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 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	1241 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1242 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	1243 if (node->left)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1244 node->left->parent = node;
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 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	1247 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1248 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	1249 if (node->right)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1250 node->right->parent = node;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1251 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1252
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1253 return err;
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
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1256 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	1257 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	1258 {
6101 c9bcd4ba6b3f * config/srclist.txt: Add glibc bug 1237. Paul Eggert <eggert@cs.ucla.edu> parents: 6078 diff changeset	1259 re_dfa_t dfa = (re_dfa_t ) preg->re_buffer;
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1260 bin_tree_t *body = node->left;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1261 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	1262
6101 c9bcd4ba6b3f * config/srclist.txt: Add glibc bug 1237. Paul Eggert <eggert@cs.ucla.edu> parents: 6078 diff changeset	1263 if (preg->re_no_sub
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1264 /* 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	1265 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	1266 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	1267 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	1268 && node->left != NULL
6171 5862ee08bfc1 * lib/regcomp.c (re_compile_fastmap_iter, init_dfa, init_word_char): Paul Eggert <eggert@cs.ucla.edu> parents: 6170 diff changeset	1269 && (node->token.opr.idx >= CHAR_BIT * sizeof dfa->used_bkref_map
5862ee08bfc1 * lib/regcomp.c (re_compile_fastmap_iter, init_dfa, init_word_char): Paul Eggert <eggert@cs.ucla.edu> parents: 6170 diff changeset	1270 \|\| !(dfa->used_bkref_map & (1u << node->token.opr.idx))))
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1271 return node->left;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1272
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1273 /* 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	1274 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	1275 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	1276 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	1277 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	1278 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	1279 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	1280 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1281 *err = REG_ESPACE;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1282 return NULL;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1283 }
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 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	1286 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	1287 return 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
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1290 /* 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	1291 nodes. Requires a postorder visit. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1292 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	1293 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	1294 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1295 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	1296 if (node->token.type == CONCAT)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1297 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1298 node->first = node->left->first;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1299 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	1300 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1301 else
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1302 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1303 node->first = node;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1304 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	1305 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	1306 return REG_ESPACE;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1307 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1308 return REG_NOERROR;
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 /* 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	1312 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	1313 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	1314 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1315 switch (node->token.type)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1316 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1317 case OP_DUP_ASTERISK:
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1318 node->left->next = node;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1319 break;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1320 case CONCAT:
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1321 node->left->next = node->right->first;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1322 node->right->next = node->next;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1323 break;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1324 default:
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1325 if (node->left)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1326 node->left->next = node->next;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1327 if (node->right)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1328 node->right->next = node->next;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1329 break;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1330 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1331 return REG_NOERROR;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1332 }
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 /* 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	1335 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	1336 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	1337 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1338 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	1339 int idx = node->node_idx;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1340 reg_errcode_t err = REG_NOERROR;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1341
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1342 switch (node->token.type)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1343 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1344 case CONCAT:
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
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1347 case END_OF_RE:
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1348 assert (node->next == NULL);
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
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1351 case OP_DUP_ASTERISK:
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1352 case OP_ALT:
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1353 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1354 int left, right;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1355 dfa->has_plural_match = 1;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1356 if (node->left != NULL)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1357 left = node->left->first->node_idx;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1358 else
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1359 left = node->next->node_idx;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1360 if (node->right != NULL)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1361 right = node->right->first->node_idx;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1362 else
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1363 right = node->next->node_idx;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1364 assert (left > -1);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1365 assert (right > -1);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1366 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	1367 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1368 break;
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 ANCHOR:
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1371 case OP_OPEN_SUBEXP:
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1372 case OP_CLOSE_SUBEXP:
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1373 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	1374 break;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1375
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1376 case OP_BACK_REF:
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1377 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	1378 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	1379 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	1380 break;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1381
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1382 default:
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1383 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	1384 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	1385 break;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1386 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1387
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1388 return err;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1389 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1390
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1391 /* 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	1392 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	1393 to their own constraint. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1394
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1395 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	1396 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	1397 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	1398 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1399 int org_node, clone_node, ret;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1400 unsigned int constraint = init_constraint;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1401 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	1402 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1403 int org_dest, clone_dest;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1404 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	1405 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1406 /* 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	1407 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	1408 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	1409 edests of the back reference. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1410 org_dest = dfa->nexts[org_node];
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1411 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	1412 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	1413 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	1414 return REG_ESPACE;
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1415 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	1416 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	1417 if (BE (ret < 0, 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1418 return REG_ESPACE;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1419 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1420 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	1421 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1422 /* 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	1423 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	1424 destination of the node. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1425 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	1426 break;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1427 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1428 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	1429 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1430 /* 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	1431 destination. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1432 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	1433 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	1434 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	1435 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1436 /* 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	1437 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	1438 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1439 /* ...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	1440 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	1441 destination of the root_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,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1443 org_dest);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1444 if (BE (ret < 0, 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1445 return REG_ESPACE;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1446 break;
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 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	1449 }
6071 c1760162e42f (duplicate_node): Return new index, not an error code, Paul Eggert <eggert@cs.ucla.edu> parents: 5972 diff changeset	1450 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	1451 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	1452 return REG_ESPACE;
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1453 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	1454 if (BE (ret < 0, 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1455 return REG_ESPACE;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1456 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1457 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	1458 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1459 /* 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	1460 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	1461 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	1462 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	1463 /* 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	1464 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	1465 if (clone_dest == -1)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1466 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1467 /* 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	1468 reg_errcode_t err;
c1760162e42f (duplicate_node): Return new index, not an error code, Paul Eggert <eggert@cs.ucla.edu> parents: 5972 diff changeset	1469 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	1470 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	1471 return REG_ESPACE;
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1472 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	1473 if (BE (ret < 0, 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1474 return REG_ESPACE;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1475 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	1476 root_node, constraint);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1477 if (BE (err != REG_NOERROR, 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1478 return err;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1479 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1480 else
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1481 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1482 /* 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	1483 use it to avoid infinite loop. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1484 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	1485 if (BE (ret < 0, 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1486 return REG_ESPACE;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1487 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1488
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1489 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	1490 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	1491 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	1492 return REG_ESPACE;
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1493 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	1494 if (BE (ret < 0, 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1495 return REG_ESPACE;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1496 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1497 org_node = org_dest;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1498 clone_node = clone_dest;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1499 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1500 return REG_NOERROR;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1501 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1502
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1503 /* 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	1504 satisfies the constraint CONSTRAINT. */
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 static int
6076 e2dd51f6e259 * config/srclist.txt: Add glibc bugs 1220, 1221, 1222. Paul Eggert <eggert@cs.ucla.edu> parents: 6071 diff changeset	1507 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	1508 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1509 int idx;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1510 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	1511 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1512 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	1513 && constraint == dfa->nodes[idx].constraint)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1514 return idx; /* Found. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1515 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1516 return -1; /* Not found. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1517 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1518
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1519 /* 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	1520 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	1521 available. */
c1760162e42f (duplicate_node): Return new index, not an error code, Paul Eggert <eggert@cs.ucla.edu> parents: 5972 diff changeset	1522
c1760162e42f (duplicate_node): Return new index, not an error code, Paul Eggert <eggert@cs.ucla.edu> parents: 5972 diff changeset	1523 static int
6076 e2dd51f6e259 * config/srclist.txt: Add glibc bugs 1220, 1221, 1222. Paul Eggert <eggert@cs.ucla.edu> parents: 6071 diff changeset	1524 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	1525 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1526 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	1527 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	1528 {
c1760162e42f (duplicate_node): Return new index, not an error code, Paul Eggert <eggert@cs.ucla.edu> parents: 5972 diff changeset	1529 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	1530 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	1531 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	1532 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	1533
c1760162e42f (duplicate_node): Return new index, not an error code, Paul Eggert <eggert@cs.ucla.edu> parents: 5972 diff changeset	1534 /* 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	1535 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	1536 }
c1760162e42f (duplicate_node): Return new index, not an error code, Paul Eggert <eggert@cs.ucla.edu> parents: 5972 diff changeset	1537 return dup_idx;
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1538 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1539
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1540 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	1541 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	1542 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1543 int src, idx, ret;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1544 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	1545 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	1546
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1547 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	1548 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1549 int *elems = dfa->eclosures[src].elems;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1550 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	1551 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1552 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	1553 if (BE (ret == -1, 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1554 return REG_ESPACE;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1555 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1556 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1557
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1558 return REG_NOERROR;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1559 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1560
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1561 /* 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	1562
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1563 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	1564 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	1565 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1566 int node_idx, incomplete;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1567 #ifdef DEBUG
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1568 assert (dfa->nodes_len > 0);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1569 #endif
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1570 incomplete = 0;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1571 /* For each nodes, calculate epsilon closure. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1572 for (node_idx = 0; ; ++node_idx)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1573 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1574 reg_errcode_t err;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1575 re_node_set eclosure_elem;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1576 if (node_idx == dfa->nodes_len)
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 if (!incomplete)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1579 break;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1580 incomplete = 0;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1581 node_idx = 0;
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 #ifdef DEBUG
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1585 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	1586 #endif
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1587
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1588 /* 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	1589 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	1590 continue;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1591 /* Calculate epsilon closure of `node_idx'. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1592 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	1593 if (BE (err != REG_NOERROR, 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1594 return err;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1595
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1596 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	1597 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1598 incomplete = 1;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1599 re_node_set_free (&eclosure_elem);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1600 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1601 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1602 return REG_NOERROR;
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
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1605 /* Calculate epsilon closure of NODE. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1606
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1607 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	1608 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	1609 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1610 reg_errcode_t err;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1611 unsigned int constraint;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1612 int i, incomplete;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1613 re_node_set eclosure;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1614 incomplete = 0;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1615 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	1616 if (BE (err != REG_NOERROR, 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1617 return err;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1618
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1619 /* 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	1620 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	1621 dfa->eclosures[node].nelem = -1;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1622
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1623 constraint = ((dfa->nodes[node].type == ANCHOR)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1624 ? 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	1625 /* 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	1626 Since they must inherit the constraints. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1627 if (constraint
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1628 && dfa->edests[node].nelem
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1629 && !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	1630 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1631 int org_node, cur_node;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1632 org_node = cur_node = node;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1633 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	1634 if (BE (err != REG_NOERROR, 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1635 return err;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1636 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1637
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1638 /* Expand each epsilon destination nodes. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1639 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	1640 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	1641 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1642 re_node_set eclosure_elem;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1643 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	1644 /* 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	1645 return intermediate result. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1646 if (dfa->eclosures[edest].nelem == -1)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1647 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1648 incomplete = 1;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1649 continue;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1650 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1651 /* 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	1652 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	1653 if (dfa->eclosures[edest].nelem == 0)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1654 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1655 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	1656 if (BE (err != REG_NOERROR, 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1657 return err;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1658 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1659 else
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1660 eclosure_elem = dfa->eclosures[edest];
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1661 /* Merge the epsilon closure of `edest'. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1662 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	1663 /* 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	1664 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	1665 if (dfa->eclosures[edest].nelem == 0)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1666 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1667 incomplete = 1;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1668 re_node_set_free (&eclosure_elem);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1669 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1670 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1671
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1672 /* Epsilon closures include itself. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1673 re_node_set_insert (&eclosure, node);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1674 if (incomplete && !root)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1675 dfa->eclosures[node].nelem = 0;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1676 else
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1677 dfa->eclosures[node] = eclosure;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1678 *new_set = eclosure;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1679 return REG_NOERROR;
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
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1682 /* 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	1683
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1684 /* Fetch a token from INPUT.
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1685 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	1686
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1687 static void
6076 e2dd51f6e259 * config/srclist.txt: Add glibc bugs 1220, 1221, 1222. Paul Eggert <eggert@cs.ucla.edu> parents: 6071 diff changeset	1688 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	1689 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1690 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	1691 }
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 /* 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	1694 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	1695
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1696 static int
6076 e2dd51f6e259 * config/srclist.txt: Add glibc bugs 1220, 1221, 1222. Paul Eggert <eggert@cs.ucla.edu> parents: 6071 diff changeset	1697 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	1698 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1699 unsigned char c;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1700
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1701 if (re_string_eoi (input))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1702 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1703 token->type = END_OF_RE;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1704 return 0;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1705 }
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 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	1708 token->opr.c = c;
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 token->word_char = 0;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1711 #ifdef RE_ENABLE_I18N
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1712 token->mb_partial = 0;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1713 if (input->mb_cur_max > 1 &&
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1714 !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	1715 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1716 token->type = CHARACTER;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1717 token->mb_partial = 1;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1718 return 1;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1719 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1720 #endif
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1721 if (c == '\\')
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1722 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1723 unsigned char c2;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1724 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	1725 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1726 token->type = BACK_SLASH;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1727 return 1;
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
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1730 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	1731 token->opr.c = c2;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1732 token->type = CHARACTER;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1733 #ifdef RE_ENABLE_I18N
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1734 if (input->mb_cur_max > 1)
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 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	1737 re_string_cur_idx (input) + 1);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1738 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	1739 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1740 else
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1741 #endif
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1742 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	1743
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1744 switch (c2)
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 case '\|':
6101 c9bcd4ba6b3f * config/srclist.txt: Add glibc bug 1237. Paul Eggert <eggert@cs.ucla.edu> parents: 6078 diff changeset	1747 if (!(syntax & REG_LIMITED_OPS) && !(syntax & REG_NO_BK_VBAR))
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1748 token->type = OP_ALT;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1749 break;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1750 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	1751 case '6': case '7': case '8': case '9':
6101 c9bcd4ba6b3f * config/srclist.txt: Add glibc bug 1237. Paul Eggert <eggert@cs.ucla.edu> parents: 6078 diff changeset	1752 if (!(syntax & REG_NO_BK_REFS))
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1753 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1754 token->type = OP_BACK_REF;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1755 token->opr.idx = c2 - '1';
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1756 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1757 break;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1758 case '<':
6101 c9bcd4ba6b3f * config/srclist.txt: Add glibc bug 1237. Paul Eggert <eggert@cs.ucla.edu> parents: 6078 diff changeset	1759 if (!(syntax & REG_NO_GNU_OPS))
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1760 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1761 token->type = ANCHOR;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1762 token->opr.ctx_type = WORD_FIRST;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1763 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1764 break;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1765 case '>':
6101 c9bcd4ba6b3f * config/srclist.txt: Add glibc bug 1237. Paul Eggert <eggert@cs.ucla.edu> parents: 6078 diff changeset	1766 if (!(syntax & REG_NO_GNU_OPS))
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1767 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1768 token->type = ANCHOR;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1769 token->opr.ctx_type = WORD_LAST;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1770 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1771 break;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1772 case 'b':
6101 c9bcd4ba6b3f * config/srclist.txt: Add glibc bug 1237. Paul Eggert <eggert@cs.ucla.edu> parents: 6078 diff changeset	1773 if (!(syntax & REG_NO_GNU_OPS))
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1774 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1775 token->type = ANCHOR;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1776 token->opr.ctx_type = WORD_DELIM;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1777 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1778 break;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1779 case 'B':
6101 c9bcd4ba6b3f * config/srclist.txt: Add glibc bug 1237. Paul Eggert <eggert@cs.ucla.edu> parents: 6078 diff changeset	1780 if (!(syntax & REG_NO_GNU_OPS))
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1781 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1782 token->type = ANCHOR;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1783 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	1784 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1785 break;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1786 case 'w':
6101 c9bcd4ba6b3f * config/srclist.txt: Add glibc bug 1237. Paul Eggert <eggert@cs.ucla.edu> parents: 6078 diff changeset	1787 if (!(syntax & REG_NO_GNU_OPS))
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1788 token->type = OP_WORD;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1789 break;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1790 case 'W':
6101 c9bcd4ba6b3f * config/srclist.txt: Add glibc bug 1237. Paul Eggert <eggert@cs.ucla.edu> parents: 6078 diff changeset	1791 if (!(syntax & REG_NO_GNU_OPS))
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1792 token->type = OP_NOTWORD;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1793 break;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1794 case 's':
6101 c9bcd4ba6b3f * config/srclist.txt: Add glibc bug 1237. Paul Eggert <eggert@cs.ucla.edu> parents: 6078 diff changeset	1795 if (!(syntax & REG_NO_GNU_OPS))
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1796 token->type = OP_SPACE;
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 'S':
6101 c9bcd4ba6b3f * config/srclist.txt: Add glibc bug 1237. Paul Eggert <eggert@cs.ucla.edu> parents: 6078 diff changeset	1799 if (!(syntax & REG_NO_GNU_OPS))
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1800 token->type = OP_NOTSPACE;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1801 break;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1802 case '`':
6101 c9bcd4ba6b3f * config/srclist.txt: Add glibc bug 1237. Paul Eggert <eggert@cs.ucla.edu> parents: 6078 diff changeset	1803 if (!(syntax & REG_NO_GNU_OPS))
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1804 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1805 token->type = ANCHOR;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1806 token->opr.ctx_type = BUF_FIRST;
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 break;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1809 case '\'':
6101 c9bcd4ba6b3f * config/srclist.txt: Add glibc bug 1237. Paul Eggert <eggert@cs.ucla.edu> parents: 6078 diff changeset	1810 if (!(syntax & REG_NO_GNU_OPS))
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1811 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1812 token->type = ANCHOR;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1813 token->opr.ctx_type = BUF_LAST;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1814 }
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 '(':
6101 c9bcd4ba6b3f * config/srclist.txt: Add glibc bug 1237. Paul Eggert <eggert@cs.ucla.edu> parents: 6078 diff changeset	1817 if (!(syntax & REG_NO_BK_PARENS))
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1818 token->type = OP_OPEN_SUBEXP;
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 ')':
6101 c9bcd4ba6b3f * config/srclist.txt: Add glibc bug 1237. Paul Eggert <eggert@cs.ucla.edu> parents: 6078 diff changeset	1821 if (!(syntax & REG_NO_BK_PARENS))
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1822 token->type = OP_CLOSE_SUBEXP;
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 '+':
6101 c9bcd4ba6b3f * config/srclist.txt: Add glibc bug 1237. Paul Eggert <eggert@cs.ucla.edu> parents: 6078 diff changeset	1825 if (!(syntax & REG_LIMITED_OPS) && (syntax & REG_BK_PLUS_QM))
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1826 token->type = OP_DUP_PLUS;
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 '?':
6101 c9bcd4ba6b3f * config/srclist.txt: Add glibc bug 1237. Paul Eggert <eggert@cs.ucla.edu> parents: 6078 diff changeset	1829 if (!(syntax & REG_LIMITED_OPS) && (syntax & REG_BK_PLUS_QM))
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1830 token->type = OP_DUP_QUESTION;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1831 break;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1832 case '{':
6101 c9bcd4ba6b3f * config/srclist.txt: Add glibc bug 1237. Paul Eggert <eggert@cs.ucla.edu> parents: 6078 diff changeset	1833 if ((syntax & REG_INTERVALS) && (!(syntax & REG_NO_BK_BRACES)))
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1834 token->type = OP_OPEN_DUP_NUM;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1835 break;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1836 case '}':
6101 c9bcd4ba6b3f * config/srclist.txt: Add glibc bug 1237. Paul Eggert <eggert@cs.ucla.edu> parents: 6078 diff changeset	1837 if ((syntax & REG_INTERVALS) && (!(syntax & REG_NO_BK_BRACES)))
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1838 token->type = OP_CLOSE_DUP_NUM;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1839 break;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1840 default:
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 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1843 return 2;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1844 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1845
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1846 token->type = CHARACTER;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1847 #ifdef RE_ENABLE_I18N
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1848 if (input->mb_cur_max > 1)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1849 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1850 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	1851 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	1852 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1853 else
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1854 #endif
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1855 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	1856
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1857 switch (c)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1858 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1859 case '\n':
6101 c9bcd4ba6b3f * config/srclist.txt: Add glibc bug 1237. Paul Eggert <eggert@cs.ucla.edu> parents: 6078 diff changeset	1860 if (syntax & REG_NEWLINE_ALT)
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1861 token->type = OP_ALT;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1862 break;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1863 case '\|':
6101 c9bcd4ba6b3f * config/srclist.txt: Add glibc bug 1237. Paul Eggert <eggert@cs.ucla.edu> parents: 6078 diff changeset	1864 if (!(syntax & REG_LIMITED_OPS) && (syntax & REG_NO_BK_VBAR))
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1865 token->type = OP_ALT;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1866 break;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1867 case '*':
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1868 token->type = OP_DUP_ASTERISK;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1869 break;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1870 case '+':
6101 c9bcd4ba6b3f * config/srclist.txt: Add glibc bug 1237. Paul Eggert <eggert@cs.ucla.edu> parents: 6078 diff changeset	1871 if (!(syntax & REG_LIMITED_OPS) && !(syntax & REG_BK_PLUS_QM))
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1872 token->type = OP_DUP_PLUS;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1873 break;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1874 case '?':
6101 c9bcd4ba6b3f * config/srclist.txt: Add glibc bug 1237. Paul Eggert <eggert@cs.ucla.edu> parents: 6078 diff changeset	1875 if (!(syntax & REG_LIMITED_OPS) && !(syntax & REG_BK_PLUS_QM))
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1876 token->type = OP_DUP_QUESTION;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1877 break;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1878 case '{':
6101 c9bcd4ba6b3f * config/srclist.txt: Add glibc bug 1237. Paul Eggert <eggert@cs.ucla.edu> parents: 6078 diff changeset	1879 if ((syntax & REG_INTERVALS) && (syntax & REG_NO_BK_BRACES))
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1880 token->type = OP_OPEN_DUP_NUM;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1881 break;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1882 case '}':
6101 c9bcd4ba6b3f * config/srclist.txt: Add glibc bug 1237. Paul Eggert <eggert@cs.ucla.edu> parents: 6078 diff changeset	1883 if ((syntax & REG_INTERVALS) && (syntax & REG_NO_BK_BRACES))
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1884 token->type = OP_CLOSE_DUP_NUM;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1885 break;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1886 case '(':
6101 c9bcd4ba6b3f * config/srclist.txt: Add glibc bug 1237. Paul Eggert <eggert@cs.ucla.edu> parents: 6078 diff changeset	1887 if (syntax & REG_NO_BK_PARENS)
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1888 token->type = OP_OPEN_SUBEXP;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1889 break;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1890 case ')':
6101 c9bcd4ba6b3f * config/srclist.txt: Add glibc bug 1237. Paul Eggert <eggert@cs.ucla.edu> parents: 6078 diff changeset	1891 if (syntax & REG_NO_BK_PARENS)
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1892 token->type = OP_CLOSE_SUBEXP;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1893 break;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1894 case '[':
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1895 token->type = OP_OPEN_BRACKET;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1896 break;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1897 case '.':
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1898 token->type = OP_PERIOD;
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 '^':
6101 c9bcd4ba6b3f * config/srclist.txt: Add glibc bug 1237. Paul Eggert <eggert@cs.ucla.edu> parents: 6078 diff changeset	1901 if (!(syntax & (REG_CONTEXT_INDEP_ANCHORS \| REG_CARET_ANCHORS_HERE)) &&
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1902 re_string_cur_idx (input) != 0)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1903 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1904 char prev = re_string_peek_byte (input, -1);
6101 c9bcd4ba6b3f * config/srclist.txt: Add glibc bug 1237. Paul Eggert <eggert@cs.ucla.edu> parents: 6078 diff changeset	1905 if (!(syntax & REG_NEWLINE_ALT) \|\| prev != '\n')
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1906 break;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1907 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1908 token->type = ANCHOR;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1909 token->opr.ctx_type = LINE_FIRST;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1910 break;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1911 case '$':
6101 c9bcd4ba6b3f * config/srclist.txt: Add glibc bug 1237. Paul Eggert <eggert@cs.ucla.edu> parents: 6078 diff changeset	1912 if (!(syntax & REG_CONTEXT_INDEP_ANCHORS) &&
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1913 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	1914 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1915 re_token_t next;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1916 re_string_skip_bytes (input, 1);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1917 peek_token (&next, input, syntax);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1918 re_string_skip_bytes (input, -1);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1919 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	1920 break;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1921 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1922 token->type = ANCHOR;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1923 token->opr.ctx_type = LINE_LAST;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1924 break;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1925 default:
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1926 break;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1927 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1928 return 1;
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
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1931 /* 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	1932 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	1933
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1934 static int
6076 e2dd51f6e259 * config/srclist.txt: Add glibc bugs 1220, 1221, 1222. Paul Eggert <eggert@cs.ucla.edu> parents: 6071 diff changeset	1935 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	1936 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1937 unsigned char c;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1938 if (re_string_eoi (input))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1939 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1940 token->type = END_OF_RE;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1941 return 0;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1942 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1943 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	1944 token->opr.c = c;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1945
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1946 #ifdef RE_ENABLE_I18N
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1947 if (input->mb_cur_max > 1 &&
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1948 !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	1949 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1950 token->type = CHARACTER;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1951 return 1;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1952 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1953 #endif /* RE_ENABLE_I18N */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1954
6101 c9bcd4ba6b3f * config/srclist.txt: Add glibc bug 1237. Paul Eggert <eggert@cs.ucla.edu> parents: 6078 diff changeset	1955 if (c == '\\' && (syntax & REG_BACKSLASH_ESCAPE_IN_LISTS)
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1956 && 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	1957 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1958 /* In this case, '\' escape a character. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1959 unsigned char c2;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1960 re_string_skip_bytes (input, 1);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1961 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	1962 token->opr.c = c2;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1963 token->type = CHARACTER;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1964 return 1;
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 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	1967 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1968 unsigned char c2;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1969 int token_len;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1970 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	1971 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	1972 else
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1973 c2 = 0;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1974 token->opr.c = c2;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1975 token_len = 2;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1976 switch (c2)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1977 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1978 case '.':
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1979 token->type = OP_OPEN_COLL_ELEM;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1980 break;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1981 case '=':
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1982 token->type = OP_OPEN_EQUIV_CLASS;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1983 break;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1984 case ':':
6101 c9bcd4ba6b3f * config/srclist.txt: Add glibc bug 1237. Paul Eggert <eggert@cs.ucla.edu> parents: 6078 diff changeset	1985 if (syntax & REG_CHAR_CLASSES)
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1986 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1987 token->type = OP_OPEN_CHAR_CLASS;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1988 break;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1989 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1990 /* else fall through. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1991 default:
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1992 token->type = CHARACTER;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1993 token->opr.c = c;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1994 token_len = 1;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1995 break;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1996 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1997 return token_len;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1998 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	1999 switch (c)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2000 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2001 case '-':
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2002 token->type = OP_CHARSET_RANGE;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2003 break;
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_CLOSE_BRACKET;
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_NON_MATCH_LIST;
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 default:
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2011 token->type = CHARACTER;
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 return 1;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2014 }
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 /* Functions for parser. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2017
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2018 /* Entry point of the parser.
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2019 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	2020 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	2021 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	2022 CAT
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2023 / \
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 <reg_exp> EOR
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 CAT means concatenation.
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2028 EOR means end of regular expression. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2029
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2030 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	2031 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	2032 reg_errcode_t *err)
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2033 {
6101 c9bcd4ba6b3f * config/srclist.txt: Add glibc bug 1237. Paul Eggert <eggert@cs.ucla.edu> parents: 6078 diff changeset	2034 re_dfa_t dfa = (re_dfa_t ) preg->re_buffer;
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2035 bin_tree_t tree, eor, *root;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2036 re_token_t current_token;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2037 dfa->syntax = syntax;
6101 c9bcd4ba6b3f * config/srclist.txt: Add glibc bug 1237. Paul Eggert <eggert@cs.ucla.edu> parents: 6078 diff changeset	2038 fetch_token (&current_token, regexp, syntax \| REG_CARET_ANCHORS_HERE);
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2039 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	2040 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	2041 return NULL;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2042 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	2043 if (tree != NULL)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2044 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	2045 else
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2046 root = eor;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2047 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	2048 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2049 *err = REG_ESPACE;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2050 return NULL;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2051 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2052 return root;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2053 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2054
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2055 /* 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	2056 <branch1>\|<branch2>:
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2057 ALT
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2058 / \
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 <branch1> <branch2>
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2061
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2062 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	2063
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2064 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	2065 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	2066 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	2067 {
6101 c9bcd4ba6b3f * config/srclist.txt: Add glibc bug 1237. Paul Eggert <eggert@cs.ucla.edu> parents: 6078 diff changeset	2068 re_dfa_t dfa = (re_dfa_t ) preg->re_buffer;
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2069 bin_tree_t tree, branch = NULL;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2070 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	2071 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	2072 return NULL;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2073
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2074 while (token->type == OP_ALT)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2075 {
6101 c9bcd4ba6b3f * config/srclist.txt: Add glibc bug 1237. Paul Eggert <eggert@cs.ucla.edu> parents: 6078 diff changeset	2076 fetch_token (token, regexp, syntax \| REG_CARET_ANCHORS_HERE);
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2077 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	2078 && (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	2079 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2080 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	2081 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	2082 return NULL;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2083 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2084 else
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2085 branch = NULL;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2086 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	2087 if (BE (tree == NULL, 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2088 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2089 *err = REG_ESPACE;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2090 return NULL;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2091 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2092 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2093 return tree;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2094 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2095
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2096 /* 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	2097 <exp1><exp2>:
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2098 CAT
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 / \
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2101 <exp1> <exp2>
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2102
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2103 CAT means concatenation. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2104
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2105 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	2106 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	2107 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	2108 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2109 bin_tree_t tree, exp;
6101 c9bcd4ba6b3f * config/srclist.txt: Add glibc bug 1237. Paul Eggert <eggert@cs.ucla.edu> parents: 6078 diff changeset	2110 re_dfa_t dfa = (re_dfa_t ) preg->re_buffer;
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2111 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	2112 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	2113 return NULL;
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 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	2116 && (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	2117 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2118 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	2119 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	2120 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2121 return NULL;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2122 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2123 if (tree != NULL && exp != NULL)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2124 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2125 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	2126 if (tree == NULL)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2127 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2128 *err = REG_ESPACE;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2129 return NULL;
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 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2132 else if (tree == NULL)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2133 tree = exp;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2134 /* 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	2135 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2136 return tree;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2137 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2138
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2139 /* 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	2140 *
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2141 \|
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2142 a
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
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2145 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	2146 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	2147 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	2148 {
6101 c9bcd4ba6b3f * config/srclist.txt: Add glibc bug 1237. Paul Eggert <eggert@cs.ucla.edu> parents: 6078 diff changeset	2149 re_dfa_t dfa = (re_dfa_t ) preg->re_buffer;
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2150 bin_tree_t *tree;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2151 switch (token->type)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2152 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2153 case CHARACTER:
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2154 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	2155 if (BE (tree == NULL, 0))
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 *err = REG_ESPACE;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2158 return NULL;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2159 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2160 #ifdef RE_ENABLE_I18N
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2161 if (dfa->mb_cur_max > 1)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2162 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2163 while (!re_string_eoi (regexp)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2164 && !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	2165 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2166 bin_tree_t *mbc_remain;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2167 fetch_token (token, regexp, syntax);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2168 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	2169 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	2170 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	2171 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2172 *err = REG_ESPACE;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2173 return NULL;
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 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2176 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2177 #endif
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2178 break;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2179 case OP_OPEN_SUBEXP:
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2180 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	2181 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	2182 return NULL;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2183 break;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2184 case OP_OPEN_BRACKET:
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2185 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	2186 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	2187 return NULL;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2188 break;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2189 case OP_BACK_REF:
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2190 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	2191 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2192 *err = REG_ESUBREG;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2193 return NULL;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2194 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2195 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	2196 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	2197 if (BE (tree == NULL, 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2198 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2199 *err = REG_ESPACE;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2200 return NULL;
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 ++dfa->nbackref;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2203 dfa->has_mb_node = 1;
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_DUP_NUM:
6101 c9bcd4ba6b3f * config/srclist.txt: Add glibc bug 1237. Paul Eggert <eggert@cs.ucla.edu> parents: 6078 diff changeset	2206 if (syntax & REG_CONTEXT_INVALID_DUP)
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2207 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2208 *err = REG_BADRPT;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2209 return NULL;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2210 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2211 /* FALLTHROUGH */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2212 case OP_DUP_ASTERISK:
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2213 case OP_DUP_PLUS:
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2214 case OP_DUP_QUESTION:
6101 c9bcd4ba6b3f * config/srclist.txt: Add glibc bug 1237. Paul Eggert <eggert@cs.ucla.edu> parents: 6078 diff changeset	2215 if (syntax & REG_CONTEXT_INVALID_OPS)
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2216 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2217 *err = REG_BADRPT;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2218 return NULL;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2219 }
6101 c9bcd4ba6b3f * config/srclist.txt: Add glibc bug 1237. Paul Eggert <eggert@cs.ucla.edu> parents: 6078 diff changeset	2220 else if (syntax & REG_CONTEXT_INDEP_OPS)
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2221 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2222 fetch_token (token, regexp, syntax);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2223 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	2224 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2225 /* else fall through */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2226 case OP_CLOSE_SUBEXP:
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2227 if ((token->type == OP_CLOSE_SUBEXP) &&
6101 c9bcd4ba6b3f * config/srclist.txt: Add glibc bug 1237. Paul Eggert <eggert@cs.ucla.edu> parents: 6078 diff changeset	2228 !(syntax & REG_UNMATCHED_RIGHT_PAREN_ORD))
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2229 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2230 *err = REG_ERPAREN;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2231 return NULL;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2232 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2233 /* else fall through */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2234 case OP_CLOSE_DUP_NUM:
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2235 /* 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	2236
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2237 /* 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	2238 token->type = CHARACTER;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2239 /* 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	2240 by peek_token. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2241 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	2242 if (BE (tree == NULL, 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2243 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2244 *err = REG_ESPACE;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2245 return NULL;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2246 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2247 break;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2248 case ANCHOR:
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2249 if ((token->opr.ctx_type
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2250 & (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	2251 && dfa->word_ops_used == 0)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2252 init_word_char (dfa);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2253 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	2254 \|\| 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	2255 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2256 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	2257 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	2258 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2259 token->opr.ctx_type = WORD_FIRST;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2260 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	2261 token->opr.ctx_type = WORD_LAST;
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 else
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2264 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2265 token->opr.ctx_type = INSIDE_WORD;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2266 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	2267 token->opr.ctx_type = INSIDE_NOTWORD;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2268 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2269 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	2270 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	2271 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	2272 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2273 *err = REG_ESPACE;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2274 return NULL;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2275 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2276 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2277 else
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2278 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2279 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	2280 if (BE (tree == NULL, 0))
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 *err = REG_ESPACE;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2283 return NULL;
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 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2286 /* 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	2287 by repetition operators.
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2288 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	2289 it must not be "<ANCHOR(^)><REPEAT()>". /
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2290 fetch_token (token, regexp, syntax);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2291 return tree;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2292 case OP_PERIOD:
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2293 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	2294 if (BE (tree == NULL, 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2295 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2296 *err = REG_ESPACE;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2297 return NULL;
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 if (dfa->mb_cur_max > 1)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2300 dfa->has_mb_node = 1;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2301 break;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2302 case OP_WORD:
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2303 case OP_NOTWORD:
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2304 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	2305 (const unsigned char *) "alnum",
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2306 (const unsigned char *) "_",
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2307 token->type == OP_NOTWORD, err);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2308 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	2309 return NULL;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2310 break;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2311 case OP_SPACE:
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2312 case OP_NOTSPACE:
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2313 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	2314 (const unsigned char *) "space",
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2315 (const unsigned char *) "",
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2316 token->type == OP_NOTSPACE, err);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2317 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	2318 return NULL;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2319 break;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2320 case OP_ALT:
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2321 case END_OF_RE:
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2322 return NULL;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2323 case BACK_SLASH:
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2324 *err = REG_EESCAPE;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2325 return NULL;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2326 default:
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2327 /* Must not happen? */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2328 #ifdef DEBUG
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2329 assert (0);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2330 #endif
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2331 return NULL;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2332 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2333 fetch_token (token, regexp, syntax);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2334
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2335 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	2336 \|\| 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	2337 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2338 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	2339 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	2340 return NULL;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2341 /* In BRE consecutive duplications are not allowed. */
6101 c9bcd4ba6b3f * config/srclist.txt: Add glibc bug 1237. Paul Eggert <eggert@cs.ucla.edu> parents: 6078 diff changeset	2342 if ((syntax & REG_CONTEXT_INVALID_DUP)
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2343 && (token->type == OP_DUP_ASTERISK
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2344 \|\| token->type == OP_OPEN_DUP_NUM))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2345 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2346 *err = REG_BADRPT;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2347 return NULL;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2348 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2349 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2350
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2351 return tree;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2352 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2353
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2354 /* 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	2355 (<reg_exp>):
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2356 SUBEXP
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2357 \|
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2358 <reg_exp>
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2359 */
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 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	2362 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	2363 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	2364 {
6101 c9bcd4ba6b3f * config/srclist.txt: Add glibc bug 1237. Paul Eggert <eggert@cs.ucla.edu> parents: 6078 diff changeset	2365 re_dfa_t dfa = (re_dfa_t ) preg->re_buffer;
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2366 bin_tree_t *tree;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2367 size_t cur_nsub;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2368 cur_nsub = preg->re_nsub++;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2369
6101 c9bcd4ba6b3f * config/srclist.txt: Add glibc bug 1237. Paul Eggert <eggert@cs.ucla.edu> parents: 6078 diff changeset	2370 fetch_token (token, regexp, syntax \| REG_CARET_ANCHORS_HERE);
5968 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 /* 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	2373 if (token->type == OP_CLOSE_SUBEXP)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2374 tree = NULL;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2375 else
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 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	2378 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	2379 *err = REG_EPAREN;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2380 if (BE (*err != REG_NOERROR, 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2381 return NULL;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2382 }
6171 5862ee08bfc1 * lib/regcomp.c (re_compile_fastmap_iter, init_dfa, init_word_char): Paul Eggert <eggert@cs.ucla.edu> parents: 6170 diff changeset	2383
5862ee08bfc1 * lib/regcomp.c (re_compile_fastmap_iter, init_dfa, init_word_char): Paul Eggert <eggert@cs.ucla.edu> parents: 6170 diff changeset	2384 if (cur_nsub <= '9' - '1')
5862ee08bfc1 * lib/regcomp.c (re_compile_fastmap_iter, init_dfa, init_word_char): Paul Eggert <eggert@cs.ucla.edu> parents: 6170 diff changeset	2385 dfa->completed_bkref_map \|= 1 << cur_nsub;
5968 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 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	2388 if (BE (tree == NULL, 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2389 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2390 *err = REG_ESPACE;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2391 return NULL;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2392 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2393 tree->token.opr.idx = cur_nsub;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2394 return tree;
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
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2397 /* 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	2398
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2399 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	2400 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	2401 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	2402 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2403 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	2404 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	2405 re_token_t start_token = *token;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2406
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2407 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	2408 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2409 end = 0;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2410 start = fetch_number (regexp, token, syntax);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2411 if (start == -1)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2412 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2413 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	2414 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	2415 else
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 err = REG_BADBR; / <re>{} is invalid. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2418 return NULL;
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 if (BE (start != -2, 1))
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 /* We treat "{n}" as "{n,n}". */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2424 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	2425 : ((token->type == CHARACTER && token->opr.c == ',')
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2426 ? fetch_number (regexp, token, syntax) : -2));
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2427 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2428 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	2429 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2430 /* Invalid sequence. */
6101 c9bcd4ba6b3f * config/srclist.txt: Add glibc bug 1237. Paul Eggert <eggert@cs.ucla.edu> parents: 6078 diff changeset	2431 if (BE (!(syntax & REG_INVALID_INTERVAL_ORD), 0))
5968 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 if (token->type == END_OF_RE)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2434 *err = REG_EBRACE;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2435 else
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2436 *err = REG_BADBR;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2437
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2438 return NULL;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2439 }
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 /* 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	2442 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	2443 *token = start_token;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2444 token->type = CHARACTER;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2445 /* 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	2446 peek_token. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2447 return elem;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2448 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2449
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2450 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	2451 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2452 /* First number greater than second. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2453 *err = REG_BADBR;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2454 return NULL;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2455 }
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 else
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2458 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2459 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	2460 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	2461 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2462
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2463 fetch_token (token, regexp, syntax);
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 (BE (elem == NULL, 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2466 return NULL;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2467 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	2468 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2469 postorder (elem, free_tree, NULL);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2470 return NULL;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2471 }
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 /* 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	2474 if (BE (start > 0, 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 tree = elem;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2477 for (i = 2; i <= start; ++i)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2478 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2479 elem = duplicate_tree (elem, dfa);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2480 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	2481 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	2482 goto parse_dup_op_espace;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2483 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2484
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2485 if (start == end)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2486 return tree;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2487
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2488 /* 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	2489 elem = duplicate_tree (elem, dfa);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2490 old_tree = tree;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2491 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2492 else
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2493 old_tree = NULL;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2494
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2495 if (elem->token.type == SUBEXP)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2496 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	2497
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2498 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	2499 if (BE (tree == NULL, 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2500 goto parse_dup_op_espace;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2501
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2502 /* 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	2503 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	2504 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	2505 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	2506 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2507 elem = duplicate_tree (elem, dfa);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2508 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	2509 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	2510 goto parse_dup_op_espace;
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 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	2513 if (BE (tree == NULL, 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2514 goto parse_dup_op_espace;
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
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2517 if (old_tree)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2518 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	2519
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2520 return tree;
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 parse_dup_op_espace:
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2523 *err = REG_ESPACE;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2524 return NULL;
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
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2527 /* 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	2528 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	2529 #define BRACKET_NAME_BUF_SIZE 32
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 #ifndef _LIBC
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2532 /* 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	2533 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	2534 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	2535 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	2536 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	2537 update it. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2538
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2539 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	2540 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	2541 # 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	2542 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	2543 # endif
e2dd51f6e259 * config/srclist.txt: Add glibc bugs 1220, 1221, 1222. Paul Eggert <eggert@cs.ucla.edu> parents: 6071 diff changeset	2544 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	2545 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2546 unsigned int start_ch, end_ch;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2547 /* 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	2548 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	2549 \|\| 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	2550 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2551 return REG_ERANGE;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2552
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2553 /* 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	2554 support. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2555 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	2556 && 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	2557 \|\| (end_elem->type == COLL_SYM
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2558 && 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	2559 return REG_ECOLLATE;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2560
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2561 # ifdef RE_ENABLE_I18N
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2562 {
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	2563 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	2564 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	2565 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	2566
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2567 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	2568 : ((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	2569 : 0));
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2570 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	2571 : ((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	2572 : 0));
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2573 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	2574 ? __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	2575 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	2576 ? __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	2577 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	2578 return REG_ECOLLATE;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2579 cmp_buf[0] = start_wc;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2580 cmp_buf[4] = end_wc;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2581 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	2582 return REG_ERANGE;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2583
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2584 /* 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	2585 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	2586 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	2587 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	2588 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	2589 if (mbcset)
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 /* Check the space of the arrays. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2592 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	2593 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2594 /* 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	2595 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	2596 int new_nranges;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2597
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2598 /* +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	2599 new_nranges = 2 * mbcset->nranges + 1;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2600 /* 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	2601 are NULL if range_alloc == 0. /
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2602 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	2603 new_nranges);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2604 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	2605 new_nranges);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2606
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2607 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	2608 return REG_ESPACE;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2609
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2610 mbcset->range_starts = new_array_start;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2611 mbcset->range_ends = new_array_end;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2612 *range_alloc = new_nranges;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2613 }
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 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	2616 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	2617 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2618
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2619 /* 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	2620 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	2621 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2622 cmp_buf[2] = wc;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2623 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	2624 && 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	2625 bitset_set (sbcset, wc);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2626 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2627 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2628 # else /* not RE_ENABLE_I18N */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2629 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2630 unsigned int ch;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2631 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	2632 : ((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	2633 : 0));
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2634 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	2635 : ((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	2636 : 0));
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2637 if (start_ch > end_ch)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2638 return REG_ERANGE;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2639 /* 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	2640 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	2641 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	2642 bitset_set (sbcset, ch);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2643 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2644 # endif /* not RE_ENABLE_I18N */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2645 return REG_NOERROR;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2646 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2647 #endif /* not _LIBC */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2648
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2649 #ifndef _LIBC
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2650 /* 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	2651 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	2652 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	2653 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	2654 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	2655
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2656 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	2657 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	2658 # 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	2659 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	2660 # endif
e2dd51f6e259 * config/srclist.txt: Add glibc bugs 1220, 1221, 1222. Paul Eggert <eggert@cs.ucla.edu> parents: 6071 diff changeset	2661 const unsigned char *name)
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2662 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2663 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	2664 if (BE (name_len != 1, 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2665 return REG_ECOLLATE;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2666 else
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 bitset_set (sbcset, name[0]);
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 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2672 #endif /* not _LIBC */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2673
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2674 /* 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	2675 "[[.a-a.]]" etc. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2676
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2677 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	2678 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	2679 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	2680 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2681 #ifdef _LIBC
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2682 const unsigned char *collseqmb;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2683 const char *collseqwc;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2684 uint32_t nrules;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2685 int32_t table_size;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2686 const int32_t *symb_table;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2687 const unsigned char *extra;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2688
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2689 /* 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	2690 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	2691 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	2692
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2693 auto inline int32_t
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2694 __attribute ((always_inline))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2695 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	2696 const unsigned char *name;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2697 size_t name_len;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2698 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2699 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	2700 int32_t elem = hash % table_size;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2701 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	2702 while (symb_table[2 * elem] != 0)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2703 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2704 /* First compare the hashing value. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2705 if (symb_table[2 * elem] == hash
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2706 /* Compare the length of the name. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2707 && 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	2708 /* Compare the name. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2709 && 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	2710 name_len) == 0)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2711 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2712 /* Yep, this is the entry. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2713 break;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2714 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2715
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2716 /* Next entry. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2717 elem += second;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2718 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2719 return elem;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2720 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2721
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2722 /* 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	2723 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	2724 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	2725
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2726 auto inline unsigned int
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2727 __attribute ((always_inline))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2728 lookup_collation_sequence_value (br_elem)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2729 bracket_elem_t *br_elem;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2730 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2731 if (br_elem->type == SB_CHAR)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2732 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2733 /*
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2734 if (MB_CUR_MAX == 1)
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 if (nrules == 0)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2737 return collseqmb[br_elem->opr.ch];
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2738 else
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 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	2741 return __collseq_table_lookup (collseqwc, wc);
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 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2744 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	2745 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2746 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	2747 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2748 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	2749 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2750 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	2751 if (nrules != 0)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2752 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2753 int32_t elem, idx;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2754 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	2755 sym_name_len);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2756 if (symb_table[2 * elem] != 0)
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 /* We found the entry. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2759 idx = symb_table[2 * elem + 1];
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2760 /* 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	2761 idx += 1 + extra[idx];
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2762 /* 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	2763 idx += 1 + extra[idx];
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2764 /* Adjust for the alignment. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2765 idx = (idx + 3) & ~3;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2766 /* Skip the multibyte collation sequence value. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2767 idx += sizeof (unsigned int);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2768 /* 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	2769 idx += sizeof (unsigned int) *
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2770 (1 + (unsigned int ) (extra + idx));
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2771 /* Return the collation sequence value. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2772 return (unsigned int ) (extra + idx);
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 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	2775 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2776 /* 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	2777 character. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2778 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	2779 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2780 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2781 else if (sym_name_len == 1)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2782 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	2783 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2784 return UINT_MAX;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2785 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2786
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2787 /* 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	2788 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	2789 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	2790 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	2791 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	2792 update it. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2793
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2794 auto inline reg_errcode_t
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2795 __attribute ((always_inline))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2796 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	2797 re_charset_t *mbcset;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2798 int *range_alloc;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2799 re_bitset_ptr_t sbcset;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2800 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	2801 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2802 unsigned int ch;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2803 uint32_t start_collseq;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2804 uint32_t end_collseq;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2805
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2806 /* 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	2807 start/end. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2808 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	2809 \|\| 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	2810 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2811 return REG_ERANGE;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2812
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2813 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	2814 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	2815 /* Check start/end collation sequence values. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2816 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	2817 return REG_ECOLLATE;
6101 c9bcd4ba6b3f * config/srclist.txt: Add glibc bug 1237. Paul Eggert <eggert@cs.ucla.edu> parents: 6078 diff changeset	2818 if (BE ((syntax & REG_NO_EMPTY_RANGES) && start_collseq > end_collseq, 0))
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2819 return REG_ERANGE;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2820
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2821 /* 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	2822 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	2823 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	2824 build below suffices. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2825 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	2826 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2827 /* Check the space of the arrays. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2828 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	2829 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2830 /* 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	2831 uint32_t *new_array_start;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2832 uint32_t *new_array_end;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2833 int new_nranges;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2834
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2835 /* +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	2836 new_nranges = 2 * mbcset->nranges + 1;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2837 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	2838 new_nranges);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2839 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	2840 new_nranges);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2841
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2842 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	2843 return REG_ESPACE;
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 mbcset->range_starts = new_array_start;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2846 mbcset->range_ends = new_array_end;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2847 *range_alloc = new_nranges;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2848 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2849
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2850 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	2851 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	2852 }
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 /* 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	2855 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	2856 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2857 uint32_t ch_collseq;
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 if (MB_CUR_MAX == 1)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2860 */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2861 if (nrules == 0)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2862 ch_collseq = collseqmb[ch];
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2863 else
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2864 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	2865 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	2866 bitset_set (sbcset, ch);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2867 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2868 return REG_NOERROR;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2869 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2870
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2871 /* 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	2872 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	2873 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	2874 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	2875 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	2876
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2877 auto inline reg_errcode_t
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2878 __attribute ((always_inline))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2879 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	2880 re_charset_t *mbcset;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2881 int *coll_sym_alloc;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2882 re_bitset_ptr_t sbcset;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2883 const unsigned char *name;
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 int32_t elem, idx;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2886 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	2887 if (nrules != 0)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2888 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2889 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	2890 if (symb_table[2 * elem] != 0)
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 /* We found the entry. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2893 idx = symb_table[2 * elem + 1];
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2894 /* 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	2895 idx += 1 + extra[idx];
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2896 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2897 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	2898 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2899 /* 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	2900 character. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2901 bitset_set (sbcset, name[0]);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2902 return REG_NOERROR;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2903 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2904 else
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2905 return REG_ECOLLATE;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2906
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2907 /* 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	2908 /* Check the space of the arrays. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2909 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	2910 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2911 /* Not enough, realloc it. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2912 /* +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	2913 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	2914 /* 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	2915 if alloc == 0. /
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2916 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	2917 new_coll_sym_alloc);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2918 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	2919 return REG_ESPACE;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2920 mbcset->coll_syms = new_coll_syms;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2921 *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	2922 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2923 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	2924 return REG_NOERROR;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2925 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2926 else
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 if (BE (name_len != 1, 0))
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 else
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2931 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2932 bitset_set (sbcset, name[0]);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2933 return REG_NOERROR;
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 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2936 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2937 #endif
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2938
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2939 re_token_t br_token;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2940 re_bitset_ptr_t sbcset;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2941 #ifdef RE_ENABLE_I18N
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2942 re_charset_t *mbcset;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2943 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	2944 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	2945 #endif /* not RE_ENABLE_I18N */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2946 int non_match = 0;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2947 bin_tree_t *work_tree;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2948 int token_len;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2949 int first_round = 1;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2950 #ifdef _LIBC
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2951 collseqmb = (const unsigned char *)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2952 _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	2953 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	2954 if (nrules)
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 /*
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2957 if (MB_CUR_MAX > 1)
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 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	2960 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	2961 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	2962 _NL_COLLATE_SYMB_TABLEMB);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2963 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	2964 _NL_COLLATE_SYMB_EXTRAMB);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2965 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2966 #endif
6119 c3bf2ea44695 Make regex safe for g++. This fixes one real bug (an "err" Paul Eggert <eggert@cs.ucla.edu> parents: 6104 diff changeset	2967 sbcset = re_calloc (unsigned int, BITSET_UINTS);
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2968 #ifdef RE_ENABLE_I18N
6119 c3bf2ea44695 Make regex safe for g++. This fixes one real bug (an "err" Paul Eggert <eggert@cs.ucla.edu> parents: 6104 diff changeset	2969 mbcset = re_calloc (re_charset_t, 1);
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2970 #endif /* RE_ENABLE_I18N */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2971 #ifdef RE_ENABLE_I18N
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2972 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	2973 #else
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2974 if (BE (sbcset == NULL, 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2975 #endif /* RE_ENABLE_I18N */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2976 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2977 *err = REG_ESPACE;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2978 return NULL;
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 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	2982 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	2983 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2984 *err = REG_BADPAT;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2985 goto parse_bracket_exp_free_return;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2986 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2987 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	2988 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2989 #ifdef RE_ENABLE_I18N
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2990 mbcset->non_match = 1;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2991 #endif /* not RE_ENABLE_I18N */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2992 non_match = 1;
6101 c9bcd4ba6b3f * config/srclist.txt: Add glibc bug 1237. Paul Eggert <eggert@cs.ucla.edu> parents: 6078 diff changeset	2993 if (syntax & REG_HAT_LISTS_NOT_NEWLINE)
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2994 bitset_set (sbcset, '\0');
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2995 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	2996 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	2997 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	2998 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	2999 *err = REG_BADPAT;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3000 goto parse_bracket_exp_free_return;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3001 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3002 }
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 /* 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	3005 if (token->type == OP_CLOSE_BRACKET)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3006 token->type = CHARACTER;
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 while (1)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3009 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3010 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	3011 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	3012 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	3013 reg_errcode_t ret;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3014 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	3015 re_token_t token2;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3016
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3017 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	3018 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	3019 syntax, first_round);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3020 if (BE (ret != REG_NOERROR, 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3021 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3022 *err = ret;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3023 goto parse_bracket_exp_free_return;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3024 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3025 first_round = 0;
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 /* 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	3028 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	3029
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3030 /* 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	3031 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	3032 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3033 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	3034 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3035 *err = REG_EBRACK;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3036 goto parse_bracket_exp_free_return;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3037 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3038 if (token->type == OP_CHARSET_RANGE)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3039 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3040 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	3041 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	3042 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	3043 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3044 *err = REG_EBRACK;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3045 goto parse_bracket_exp_free_return;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3046 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3047 if (token2.type == OP_CLOSE_BRACKET)
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 /* 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	3050 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	3051 token->type = CHARACTER;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3052 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3053 else
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3054 is_range_exp = 1;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3055 }
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
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3058 if (is_range_exp == 1)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3059 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3060 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	3061 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	3062 dfa, syntax, 1);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3063 if (BE (ret != REG_NOERROR, 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3064 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3065 *err = ret;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3066 goto parse_bracket_exp_free_return;
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
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3069 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	3070
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3071 #ifdef _LIBC
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3072 *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	3073 &start_elem, &end_elem);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3074 #else
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3075 # ifdef RE_ENABLE_I18N
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3076 *err = build_range_exp (sbcset,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3077 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	3078 &range_alloc, &start_elem, &end_elem);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3079 # else
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3080 *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	3081 # endif
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3082 #endif /* RE_ENABLE_I18N */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3083 if (BE (*err != REG_NOERROR, 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3084 goto parse_bracket_exp_free_return;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3085 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3086 else
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3087 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3088 switch (start_elem.type)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3089 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3090 case SB_CHAR:
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3091 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	3092 break;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3093 #ifdef RE_ENABLE_I18N
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3094 case MB_CHAR:
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3095 /* 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	3096 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	3097 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3098 wchar_t *new_mbchars;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3099 /* Not enough, realloc it. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3100 /* +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	3101 mbchar_alloc = 2 * mbcset->nmbchars + 1;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3102 /* 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	3103 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	3104 mbchar_alloc);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3105 if (BE (new_mbchars == NULL, 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3106 goto parse_bracket_exp_espace;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3107 mbcset->mbchars = new_mbchars;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3108 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3109 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	3110 break;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3111 #endif /* RE_ENABLE_I18N */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3112 case EQUIV_CLASS:
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3113 *err = build_equiv_class (sbcset,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3114 #ifdef RE_ENABLE_I18N
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3115 mbcset, &equiv_class_alloc,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3116 #endif /* RE_ENABLE_I18N */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3117 start_elem.opr.name);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3118 if (BE (*err != REG_NOERROR, 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3119 goto parse_bracket_exp_free_return;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3120 break;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3121 case COLL_SYM:
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3122 *err = build_collating_symbol (sbcset,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3123 #ifdef RE_ENABLE_I18N
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3124 mbcset, &coll_sym_alloc,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3125 #endif /* RE_ENABLE_I18N */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3126 start_elem.opr.name);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3127 if (BE (*err != REG_NOERROR, 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3128 goto parse_bracket_exp_free_return;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3129 break;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3130 case CHAR_CLASS:
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3131 *err = build_charclass (regexp->trans, sbcset,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3132 #ifdef RE_ENABLE_I18N
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3133 mbcset, &char_class_alloc,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3134 #endif /* RE_ENABLE_I18N */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3135 start_elem.opr.name, syntax);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3136 if (BE (*err != REG_NOERROR, 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3137 goto parse_bracket_exp_free_return;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3138 break;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3139 default:
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3140 assert (0);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3141 break;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3142 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3143 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3144 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	3145 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3146 *err = REG_EBRACK;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3147 goto parse_bracket_exp_free_return;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3148 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3149 if (token->type == OP_CLOSE_BRACKET)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3150 break;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3151 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3152
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3153 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	3154
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3155 /* If it is non-matching list. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3156 if (non_match)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3157 bitset_not (sbcset);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3158
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3159 #ifdef RE_ENABLE_I18N
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3160 /* 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	3161 if (dfa->mb_cur_max > 1)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3162 bitset_mask (sbcset, dfa->sb_char);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3163
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3164 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	3165 \|\| 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	3166 \|\| mbcset->non_match)))
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 bin_tree_t *mbc_tree;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3169 int sbc_idx;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3170 /* Build a tree for complex bracket. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3171 dfa->has_mb_node = 1;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3172 br_token.type = COMPLEX_BRACKET;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3173 br_token.opr.mbcset = mbcset;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3174 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	3175 if (BE (mbc_tree == NULL, 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3176 goto parse_bracket_exp_espace;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3177 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	3178 if (sbcset[sbc_idx])
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3179 break;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3180 /* 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	3181 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	3182 if (sbc_idx < BITSET_UINTS)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3183 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3184 /* Build a tree for simple bracket. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3185 br_token.type = SIMPLE_BRACKET;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3186 br_token.opr.sbcset = sbcset;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3187 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	3188 if (BE (work_tree == NULL, 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3189 goto parse_bracket_exp_espace;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3190
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3191 /* Then join them by ALT node. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3192 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	3193 if (BE (work_tree == NULL, 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3194 goto parse_bracket_exp_espace;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3195 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3196 else
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3197 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3198 re_free (sbcset);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3199 work_tree = mbc_tree;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3200 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3201 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3202 else
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3203 #endif /* not RE_ENABLE_I18N */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3204 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3205 #ifdef RE_ENABLE_I18N
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3206 free_charset (mbcset);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3207 #endif
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 return work_tree;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3216
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3217 parse_bracket_exp_espace:
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3218 *err = REG_ESPACE;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3219 parse_bracket_exp_free_return:
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3220 re_free (sbcset);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3221 #ifdef RE_ENABLE_I18N
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3222 free_charset (mbcset);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3223 #endif /* RE_ENABLE_I18N */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3224 return NULL;
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
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3227 /* 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	3228
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3229 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	3230 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	3231 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	3232 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	3233 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3234 #ifdef RE_ENABLE_I18N
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3235 int cur_char_size;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3236 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	3237 if (cur_char_size > 1)
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 elem->type = MB_CHAR;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3240 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	3241 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	3242 return REG_NOERROR;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3243 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3244 #endif /* RE_ENABLE_I18N */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3245 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	3246 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	3247 \|\| token->type == OP_OPEN_EQUIV_CLASS)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3248 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	3249 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	3250 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3251 /* 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	3252 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	3253 re_token_t token2;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3254 (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	3255 if (token2.type != OP_CLOSE_BRACKET)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3256 /* 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	3257 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	3258 return REG_ERANGE;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3259 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3260 elem->type = SB_CHAR;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3261 elem->opr.ch = token->opr.c;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3262 return REG_NOERROR;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3263 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3264
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3265 /* 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	3266 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	3267 [=<equivalent_class>=]. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3268
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3269 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	3270 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	3271 re_token_t *token)
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3272 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3273 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	3274 int i = 0;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3275 if (re_string_eoi(regexp))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3276 return REG_EBRACK;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3277 for (;; ++i)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3278 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3279 if (i >= BRACKET_NAME_BUF_SIZE)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3280 return REG_EBRACK;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3281 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	3282 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	3283 else
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3284 ch = re_string_fetch_byte (regexp);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3285 if (re_string_eoi(regexp))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3286 return REG_EBRACK;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3287 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	3288 break;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3289 elem->opr.name[i] = ch;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3290 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3291 re_string_skip_bytes (regexp, 1);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3292 elem->opr.name[i] = '\0';
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3293 switch (token->type)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3294 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3295 case OP_OPEN_COLL_ELEM:
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3296 elem->type = COLL_SYM;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3297 break;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3298 case OP_OPEN_EQUIV_CLASS:
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3299 elem->type = EQUIV_CLASS;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3300 break;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3301 case OP_OPEN_CHAR_CLASS:
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3302 elem->type = CHAR_CLASS;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3303 break;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3304 default:
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3305 break;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3306 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3307 return REG_NOERROR;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3308 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3309
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3310 /* Helper function for parse_bracket_exp.
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3311 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	3312 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	3313 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	3314 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	3315
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3316 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	3317 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	3318 #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	3319 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	3320 #endif
e2dd51f6e259 * config/srclist.txt: Add glibc bugs 1220, 1221, 1222. Paul Eggert <eggert@cs.ucla.edu> parents: 6071 diff changeset	3321 const unsigned char *name)
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3322 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3323 #if defined _LIBC
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3324 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	3325 if (nrules != 0)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3326 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3327 const int32_t table, indirect;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3328 const unsigned char weights, extra, *cp;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3329 unsigned char char_buf[2];
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3330 int32_t idx1, idx2;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3331 unsigned int ch;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3332 size_t len;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3333 /* This #include defines a local function! */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3334 # include <locale/weight.h>
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3335 /* Calculate the index for equivalence class. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3336 cp = name;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3337 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	3338 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	3339 _NL_COLLATE_WEIGHTMB);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3340 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	3341 _NL_COLLATE_EXTRAMB);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3342 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	3343 _NL_COLLATE_INDIRECTMB);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3344 idx1 = findidx (&cp);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3345 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	3346 /* This isn't a valid character. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3347 return REG_ECOLLATE;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3348
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3349 /* 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	3350 char_buf[1] = (unsigned char) '\0';
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3351 len = weights[idx1];
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3352 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	3353 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3354 char_buf[0] = ch;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3355 cp = char_buf;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3356 idx2 = findidx (&cp);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3357 /*
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3358 idx2 = table[ch];
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3359 */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3360 if (idx2 == 0)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3361 /* This isn't a valid character. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3362 continue;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3363 if (len == weights[idx2])
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3364 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3365 int cnt = 0;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3366 while (cnt <= len &&
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3367 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	3368 ++cnt;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3369
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3370 if (cnt > len)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3371 bitset_set (sbcset, ch);
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 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3374 /* 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	3375 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	3376 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3377 /* Not enough, realloc it. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3378 /* +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	3379 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	3380 /* 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	3381 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	3382 int32_t,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3383 new_equiv_class_alloc);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3384 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	3385 return REG_ESPACE;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3386 mbcset->equiv_classes = new_equiv_classes;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3387 *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	3388 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3389 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	3390 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3391 else
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3392 #endif /* _LIBC */
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 (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	3395 return REG_ECOLLATE;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3396 bitset_set (sbcset, *name);
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 return REG_NOERROR;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3399 }
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 /* Helper function for parse_bracket_exp.
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3402 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	3403 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	3404 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	3405 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	3406
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3407 static reg_errcode_t
6101 c9bcd4ba6b3f * config/srclist.txt: Add glibc bug 1237. Paul Eggert <eggert@cs.ucla.edu> parents: 6078 diff changeset	3408 build_charclass (unsigned REG_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	3409 #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	3410 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	3411 #endif
e2dd51f6e259 * config/srclist.txt: Add glibc bugs 1220, 1221, 1222. Paul Eggert <eggert@cs.ucla.edu> parents: 6071 diff changeset	3412 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	3413 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3414 int i;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3415 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	3416
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3417 /* 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	3418 upper and lower cases. */
6101 c9bcd4ba6b3f * config/srclist.txt: Add glibc bug 1237. Paul Eggert <eggert@cs.ucla.edu> parents: 6078 diff changeset	3419 if ((syntax & REG_IGNORE_CASE)
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3420 && (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	3421 name = "alpha";
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3422
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3423 #ifdef RE_ENABLE_I18N
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3424 /* Check the space of the arrays. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3425 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	3426 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3427 /* Not enough, realloc it. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3428 /* +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	3429 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	3430 /* 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	3431 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	3432 new_char_class_alloc);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3433 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	3434 return REG_ESPACE;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3435 mbcset->char_classes = new_char_classes;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3436 *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	3437 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3438 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	3439 #endif /* RE_ENABLE_I18N */
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 #define BUILD_CHARCLASS_LOOP(ctype_func) \
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3442 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	3443 { \
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3444 if (ctype_func (i)) \
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3445 { \
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3446 int ch = trans ? trans[i] : i; \
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3447 bitset_set (sbcset, ch); \
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3448 } \
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3449 }
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 if (strcmp (name, "alnum") == 0)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3452 BUILD_CHARCLASS_LOOP (isalnum)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3453 else if (strcmp (name, "cntrl") == 0)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3454 BUILD_CHARCLASS_LOOP (iscntrl)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3455 else if (strcmp (name, "lower") == 0)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3456 BUILD_CHARCLASS_LOOP (islower)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3457 else if (strcmp (name, "space") == 0)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3458 BUILD_CHARCLASS_LOOP (isspace)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3459 else if (strcmp (name, "alpha") == 0)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3460 BUILD_CHARCLASS_LOOP (isalpha)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3461 else if (strcmp (name, "digit") == 0)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3462 BUILD_CHARCLASS_LOOP (isdigit)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3463 else if (strcmp (name, "print") == 0)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3464 BUILD_CHARCLASS_LOOP (isprint)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3465 else if (strcmp (name, "upper") == 0)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3466 BUILD_CHARCLASS_LOOP (isupper)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3467 else if (strcmp (name, "blank") == 0)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3468 BUILD_CHARCLASS_LOOP (isblank)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3469 else if (strcmp (name, "graph") == 0)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3470 BUILD_CHARCLASS_LOOP (isgraph)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3471 else if (strcmp (name, "punct") == 0)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3472 BUILD_CHARCLASS_LOOP (ispunct)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3473 else if (strcmp (name, "xdigit") == 0)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3474 BUILD_CHARCLASS_LOOP (isxdigit)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3475 else
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3476 return REG_ECTYPE;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3477
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3478 return REG_NOERROR;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3479 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3480
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3481 static bin_tree_t *
6101 c9bcd4ba6b3f * config/srclist.txt: Add glibc bug 1237. Paul Eggert <eggert@cs.ucla.edu> parents: 6078 diff changeset	3482 build_charclass_op (re_dfa_t *dfa, unsigned REG_TRANSLATE_TYPE trans,
6076 e2dd51f6e259 * config/srclist.txt: Add glibc bugs 1220, 1221, 1222. Paul Eggert <eggert@cs.ucla.edu> parents: 6071 diff changeset	3483 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	3484 const unsigned char *extra,
e2dd51f6e259 * config/srclist.txt: Add glibc bugs 1220, 1221, 1222. Paul Eggert <eggert@cs.ucla.edu> parents: 6071 diff changeset	3485 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	3486 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3487 re_bitset_ptr_t sbcset;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3488 #ifdef RE_ENABLE_I18N
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3489 re_charset_t *mbcset;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3490 int alloc = 0;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3491 #endif /* not RE_ENABLE_I18N */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3492 reg_errcode_t ret;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3493 re_token_t br_token;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3494 bin_tree_t *tree;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3495
6119 c3bf2ea44695 Make regex safe for g++. This fixes one real bug (an "err" Paul Eggert <eggert@cs.ucla.edu> parents: 6104 diff changeset	3496 sbcset = re_calloc (unsigned int, BITSET_UINTS);
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3497 #ifdef RE_ENABLE_I18N
6119 c3bf2ea44695 Make regex safe for g++. This fixes one real bug (an "err" Paul Eggert <eggert@cs.ucla.edu> parents: 6104 diff changeset	3498 mbcset = re_calloc (re_charset_t, 1);
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3499 #endif /* RE_ENABLE_I18N */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3500
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3501 #ifdef RE_ENABLE_I18N
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3502 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	3503 #else /* not RE_ENABLE_I18N */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3504 if (BE (sbcset == NULL, 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3505 #endif /* not RE_ENABLE_I18N */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3506 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3507 *err = REG_ESPACE;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3508 return NULL;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3509 }
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 if (non_match)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3512 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3513 #ifdef RE_ENABLE_I18N
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3514 /*
6101 c9bcd4ba6b3f * config/srclist.txt: Add glibc bug 1237. Paul Eggert <eggert@cs.ucla.edu> parents: 6078 diff changeset	3515 if (syntax & REG_HAT_LISTS_NOT_NEWLINE)
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3516 bitset_set(cset->sbcset, '\0');
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3517 */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3518 mbcset->non_match = 1;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3519 #endif /* not RE_ENABLE_I18N */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3520 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3521
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3522 /* 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	3523 ret = build_charclass (trans, sbcset,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3524 #ifdef RE_ENABLE_I18N
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3525 mbcset, &alloc,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3526 #endif /* RE_ENABLE_I18N */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3527 class_name, 0);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3528
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3529 if (BE (ret != REG_NOERROR, 0))
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 re_free (sbcset);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3532 #ifdef RE_ENABLE_I18N
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3533 free_charset (mbcset);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3534 #endif /* RE_ENABLE_I18N */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3535 *err = ret;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3536 return NULL;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3537 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3538 /* \w match '_' also. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3539 for (; *extra; extra++)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3540 bitset_set (sbcset, *extra);
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 /* If it is non-matching list. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3543 if (non_match)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3544 bitset_not (sbcset);
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 #ifdef RE_ENABLE_I18N
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3547 /* 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	3548 if (dfa->mb_cur_max > 1)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3549 bitset_mask (sbcset, dfa->sb_char);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3550 #endif
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3551
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3552 /* Build a tree for simple bracket. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3553 br_token.type = SIMPLE_BRACKET;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3554 br_token.opr.sbcset = sbcset;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3555 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	3556 if (BE (tree == NULL, 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3557 goto build_word_op_espace;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3558
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3559 #ifdef RE_ENABLE_I18N
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3560 if (dfa->mb_cur_max > 1)
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 bin_tree_t *mbc_tree;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3563 /* Build a tree for complex bracket. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3564 br_token.type = COMPLEX_BRACKET;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3565 br_token.opr.mbcset = mbcset;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3566 dfa->has_mb_node = 1;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3567 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	3568 if (BE (mbc_tree == NULL, 0))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3569 goto build_word_op_espace;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3570 /* Then join them by ALT node. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3571 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	3572 if (BE (mbc_tree != NULL, 1))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3573 return tree;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3574 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3575 else
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3576 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3577 free_charset (mbcset);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3578 return tree;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3579 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3580 #else /* not RE_ENABLE_I18N */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3581 return tree;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3582 #endif /* not RE_ENABLE_I18N */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3583
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3584 build_word_op_espace:
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3585 re_free (sbcset);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3586 #ifdef RE_ENABLE_I18N
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3587 free_charset (mbcset);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3588 #endif /* RE_ENABLE_I18N */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3589 *err = REG_ESPACE;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3590 return NULL;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3591 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3592
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3593 /* 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	3594 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	3595 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	3596 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	3597
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3598 static int
6076 e2dd51f6e259 * config/srclist.txt: Add glibc bugs 1220, 1221, 1222. Paul Eggert <eggert@cs.ucla.edu> parents: 6071 diff changeset	3599 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	3600 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3601 int num = -1;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3602 unsigned char c;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3603 while (1)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3604 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3605 fetch_token (token, input, syntax);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3606 c = token->opr.c;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3607 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	3608 return -2;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3609 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	3610 break;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3611 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	3612 ? -2 : ((num == -1) ? c - '0' : num * 10 + c - '0'));
6101 c9bcd4ba6b3f * config/srclist.txt: Add glibc bug 1237. Paul Eggert <eggert@cs.ucla.edu> parents: 6078 diff changeset	3613 num = (num > REG_DUP_MAX) ? -2 : num;
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3614 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3615 return num;
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
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3618 #ifdef RE_ENABLE_I18N
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3619 static void
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3620 free_charset (re_charset_t *cset)
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 re_free (cset->mbchars);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3623 # ifdef _LIBC
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3624 re_free (cset->coll_syms);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3625 re_free (cset->equiv_classes);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3626 re_free (cset->range_starts);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3627 re_free (cset->range_ends);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3628 # endif
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3629 re_free (cset->char_classes);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3630 re_free (cset);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3631 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3632 #endif /* RE_ENABLE_I18N */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3633
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3634 /* Functions for binary tree operation. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3635
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3636 /* Create a tree node. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3637
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3638 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	3639 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	3640 re_token_type_t type)
5968 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 re_token_t t;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3643 t.type = type;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3644 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	3645 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3646
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3647 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	3648 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	3649 const re_token_t *token)
5968 541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3650 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3651 bin_tree_t *tree;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3652 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	3653 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3654 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	3655
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3656 if (storage == NULL)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3657 return NULL;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3658 storage->next = dfa->str_tree_storage;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3659 dfa->str_tree_storage = storage;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3660 dfa->str_tree_storage_idx = 0;
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 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	3663
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3664 tree->parent = NULL;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3665 tree->left = left;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3666 tree->right = right;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3667 tree->token = *token;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3668 tree->token.duplicated = 0;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3669 tree->token.opt_subexp = 0;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3670 tree->first = NULL;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3671 tree->next = NULL;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3672 tree->node_idx = -1;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3673
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3674 if (left != NULL)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3675 left->parent = tree;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3676 if (right != NULL)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3677 right->parent = tree;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3678 return tree;
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
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3681 /* 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	3682 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	3683
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3684 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	3685 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	3686 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3687 int idx = (int) (long) extra;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3688 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	3689 node->token.opt_subexp = 1;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3690
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3691 return REG_NOERROR;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3692 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3693
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3694 /* Free the allocated memory inside NODE. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3695
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3696 static void
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3697 free_token (re_token_t *node)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3698 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3699 #ifdef RE_ENABLE_I18N
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3700 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	3701 free_charset (node->opr.mbcset);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3702 else
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3703 #endif /* RE_ENABLE_I18N */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3704 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	3705 re_free (node->opr.sbcset);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3706 }
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 /* 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	3709 and its children. */
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 static reg_errcode_t
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3712 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	3713 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3714 free_token (&node->token);
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
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3719 /* 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	3720 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	3721 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	3722 it's easier to duplicate. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3723
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3724 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	3725 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	3726 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3727 const bin_tree_t *node;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3728 bin_tree_t *dup_root;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3729 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	3730
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3731 for (node = root; ; )
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3732 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3733 /* 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	3734 *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	3735 if (*p_new == NULL)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3736 return NULL;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3737 (*p_new)->parent = dup_node;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3738 (*p_new)->token.duplicated = 1;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3739 dup_node = *p_new;
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 /* 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	3742 if (node->left)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3743 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3744 node = node->left;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3745 p_new = &dup_node->left;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3746 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3747 else
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3748 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3749 const bin_tree_t *prev = NULL;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3750 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	3751 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3752 prev = node;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3753 node = node->parent;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3754 dup_node = dup_node->parent;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3755 if (!node)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3756 return dup_root;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3757 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3758 node = node->right;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3759 p_new = &dup_node->right;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3760 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3761 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c, Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	3762 }

Mercurial > gnulib

annotate lib/regcomp.c @ 6171:5862ee08bfc1