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annotate lib/regex_internal.h @ 7733:9d60f39f35c1

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* MODULES.html.sh: New module wctype. * lib/wctype_.h, m4/wctype.m4, modules/wctype: New files. * lib/fnmatch.c: Don't bother to include <wchar.h> before <wctype.h>, since the new wctype module should fix this. * lib/quotearg.c: Include <wctype.h> unconditionally, since the wctype module should arrange for it. * lib/regex_internal.h: Likewise. * m4/quotearg.m4 (gl_QUOTEARG): Don't check for wctype.h or iswprint, since the wctype module should handle this now. * m4/regex.m4 (gl_PREREQ_REGEX): Don't check for wctype.h. * modules/fnmatch (Depends-on): Add wctype. * modules/quotearg (Depends-on): Likewise. * modules/regex (Depends-on): Likewise.
author Paul Eggert <eggert@cs.ucla.edu>
date Fri, 22 Dec 2006 00:21:54 +0000
parents 47b81ff5eb33
children b6376840b47b
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1 /* Extended regular expression matching and search library.
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2 Copyright (C) 2002, 2003, 2004, 2005, 2006 Free Software Foundation, Inc.
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3 This file is part of the GNU C Library.
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4 Contributed by Isamu Hasegawa <isamu@yamato.ibm.com>.
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5
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6 This program is free software; you can redistribute it and/or modify
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7 it under the terms of the GNU General Public License as published by
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8 the Free Software Foundation; either version 2, or (at your option)
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9 any later version.
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10
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11 This program is distributed in the hope that it will be useful,
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12 but WITHOUT ANY WARRANTY; without even the implied warranty of
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13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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14 GNU General Public License for more details.
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15
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16 You should have received a copy of the GNU General Public License along
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17 with this program; if not, write to the Free Software Foundation,
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18 Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
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19
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20 #ifndef _REGEX_INTERNAL_H
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21 #define _REGEX_INTERNAL_H 1
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22
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23 #include <assert.h>
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24 #include <ctype.h>
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25 #include <stdbool.h>
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26 #include <stdio.h>
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27 #include <stdlib.h>
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28 #include <string.h>
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29
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30 #ifndef _LIBC
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31 # include "strcase.h"
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32 #endif
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33
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34 #if defined HAVE_LANGINFO_H || defined HAVE_LANGINFO_CODESET || defined _LIBC
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35 # include <langinfo.h>
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36 #endif
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37 #if defined HAVE_LOCALE_H || defined _LIBC
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38 # include <locale.h>
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39 #endif
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40 #if defined HAVE_WCHAR_H || defined _LIBC
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41 # include <wchar.h>
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42 #endif /* HAVE_WCHAR_H || _LIBC */
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43 #include <wctype.h>
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44 #include <stdint.h>
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45 #if defined _LIBC
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46 # include <bits/libc-lock.h>
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47 #else
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48 # define __libc_lock_init(NAME) do { } while (0)
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49 # define __libc_lock_lock(NAME) do { } while (0)
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50 # define __libc_lock_unlock(NAME) do { } while (0)
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51 #endif
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52
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53 /* In case that the system doesn't have isblank(). */
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54 #if !defined _LIBC && !HAVE_DECL_ISBLANK && !defined isblank
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55 # define isblank(ch) ((ch) == ' ' || (ch) == '\t')
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56 #endif
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57
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58 #ifdef _LIBC
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59 # ifndef _RE_DEFINE_LOCALE_FUNCTIONS
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60 # define _RE_DEFINE_LOCALE_FUNCTIONS 1
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61 # include <locale/localeinfo.h>
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62 # include <locale/elem-hash.h>
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63 # include <locale/coll-lookup.h>
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64 # endif
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65 #endif
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66
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67 /* This is for other GNU distributions with internationalized messages. */
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68 #if (HAVE_LIBINTL_H && ENABLE_NLS) || defined _LIBC
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69 # include <libintl.h>
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70 # ifdef _LIBC
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71 # undef gettext
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72 # define gettext(msgid) \
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73 INTUSE(__dcgettext) (_libc_intl_domainname, msgid, LC_MESSAGES)
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74 # endif
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75 #else
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76 # define gettext(msgid) (msgid)
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77 #endif
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78
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79 #ifndef gettext_noop
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80 /* This define is so xgettext can find the internationalizable
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81 strings. */
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82 # define gettext_noop(String) String
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83 #endif
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84
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85 /* For loser systems without the definition. */
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86 #ifndef SIZE_MAX
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87 # define SIZE_MAX ((size_t) -1)
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88 #endif
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89
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90 #if (defined MB_CUR_MAX && HAVE_LOCALE_H && HAVE_WCTYPE_H && HAVE_WCHAR_H && HAVE_ISWCTYPE && HAVE_WCRTOMB && HAVE_MBRTOWC && HAVE_WCSCOLL) || _LIBC
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91 # define RE_ENABLE_I18N
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92 #endif
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93
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94 #if __GNUC__ >= 3
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95 # define BE(expr, val) __builtin_expect (expr, val)
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96 #else
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97 # define BE(expr, val) (expr)
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98 # ifdef _LIBC
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99 # define inline
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100 # endif
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101 #endif
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102
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103 /* Number of ASCII characters. */
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104 #define ASCII_CHARS 0x80
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105
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106 /* Number of single byte characters. */
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107 #define SBC_MAX (UCHAR_MAX + 1)
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108
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109 #define COLL_ELEM_LEN_MAX 8
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110
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111 /* The character which represents newline. */
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112 #define NEWLINE_CHAR '\n'
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113 #define WIDE_NEWLINE_CHAR L'\n'
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114
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115 /* Rename to standard API for using out of glibc. */
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116 #ifndef _LIBC
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117 # define __wctype wctype
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118 # define __iswctype iswctype
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119 # define __btowc btowc
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120 # ifndef __mempcpy
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121 # define __mempcpy mempcpy
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122 # endif
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123 # define __wcrtomb wcrtomb
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124 # define __regfree regfree
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125 # define attribute_hidden
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126 #endif /* not _LIBC */
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127
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128 #if __GNUC__ >= 4 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 1)
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129 # define __attribute(arg) __attribute__ (arg)
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130 #else
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131 # define __attribute(arg)
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132 #endif
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133
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134 typedef __re_idx_t Idx;
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135
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136 /* Special return value for failure to match. */
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137 #define REG_MISSING ((Idx) -1)
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138
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139 /* Special return value for internal error. */
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140 #define REG_ERROR ((Idx) -2)
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141
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142 /* Test whether N is a valid index, and is not one of the above. */
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143 #ifdef _REGEX_LARGE_OFFSETS
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144 # define REG_VALID_INDEX(n) ((Idx) (n) < REG_ERROR)
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145 #else
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146 # define REG_VALID_INDEX(n) (0 <= (n))
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147 #endif
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148
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149 /* Test whether N is a valid nonzero index. */
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150 #ifdef _REGEX_LARGE_OFFSETS
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151 # define REG_VALID_NONZERO_INDEX(n) ((Idx) ((n) - 1) < (Idx) (REG_ERROR - 1))
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152 #else
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153 # define REG_VALID_NONZERO_INDEX(n) (0 < (n))
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154 #endif
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155
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156 /* A hash value, suitable for computing hash tables. */
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157 typedef __re_size_t re_hashval_t;
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158
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159 /* An integer used to represent a set of bits. It must be unsigned,
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160 and must be at least as wide as unsigned int. */
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161 typedef unsigned long int bitset_word_t;
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162 /* All bits set in a bitset_word_t. */
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163 #define BITSET_WORD_MAX ULONG_MAX
5968
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164
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165 /* Number of bits in a bitset_word_t. For portability to hosts with
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166 padding bits, do not use '(sizeof (bitset_word_t) * CHAR_BIT)';
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167 instead, deduce it directly from BITSET_WORD_MAX. Avoid
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168 greater-than-32-bit integers and unconditional shifts by more than
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169 31 bits, as they're not portable. */
6214
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170 #if BITSET_WORD_MAX == 0xffffffff
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171 # define BITSET_WORD_BITS 32
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172 #elif BITSET_WORD_MAX >> 31 >> 5 == 1
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173 # define BITSET_WORD_BITS 36
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174 #elif BITSET_WORD_MAX >> 31 >> 16 == 1
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175 # define BITSET_WORD_BITS 48
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176 #elif BITSET_WORD_MAX >> 31 >> 28 == 1
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177 # define BITSET_WORD_BITS 60
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178 #elif BITSET_WORD_MAX >> 31 >> 31 >> 1 == 1
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179 # define BITSET_WORD_BITS 64
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180 #elif BITSET_WORD_MAX >> 31 >> 31 >> 9 == 1
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181 # define BITSET_WORD_BITS 72
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182 #elif BITSET_WORD_MAX >> 31 >> 31 >> 31 >> 31 >> 3 == 1
afb93b90dcb8 Change bitset word type from unsigned int to unsigned long int,
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183 # define BITSET_WORD_BITS 128
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184 #elif BITSET_WORD_MAX >> 31 >> 31 >> 31 >> 31 >> 31 >> 31 >> 31 >> 31 >> 7 == 1
afb93b90dcb8 Change bitset word type from unsigned int to unsigned long int,
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185 # define BITSET_WORD_BITS 256
afb93b90dcb8 Change bitset word type from unsigned int to unsigned long int,
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186 #elif BITSET_WORD_MAX >> 31 >> 31 >> 31 >> 31 >> 31 >> 31 >> 31 >> 31 >> 7 > 1
afb93b90dcb8 Change bitset word type from unsigned int to unsigned long int,
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187 # define BITSET_WORD_BITS 257 /* any value > SBC_MAX will do here */
afb93b90dcb8 Change bitset word type from unsigned int to unsigned long int,
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188 # if BITSET_WORD_BITS <= SBC_MAX
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189 # error "Invalid SBC_MAX"
afb93b90dcb8 Change bitset word type from unsigned int to unsigned long int,
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190 # endif
6726
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191 #elif BITSET_WORD_MAX == (0xffffffff + 2) * 0xffffffff
6539
5a1c91276525 * regex_internal.h (BITSET_WORD_BITS):
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diff changeset
192 /* Work around a bug in 64-bit PGC (before version 6.1-2), where the
5a1c91276525 * regex_internal.h (BITSET_WORD_BITS):
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193 preprocessor mishandles large unsigned values as if they were signed. */
5a1c91276525 * regex_internal.h (BITSET_WORD_BITS):
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194 # define BITSET_WORD_BITS 64
6214
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195 #else
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196 # error "Add case for new bitset_word_t size"
6214
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197 #endif
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198
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199 /* Number of bitset_word_t values in a bitset_t. */
6214
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200 #define BITSET_WORDS ((SBC_MAX + BITSET_WORD_BITS - 1) / BITSET_WORD_BITS)
afb93b90dcb8 Change bitset word type from unsigned int to unsigned long int,
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201
6726
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202 typedef bitset_word_t bitset_t[BITSET_WORDS];
af9abbcedfbd Merge regex changes from libc, removing some of our
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203 typedef bitset_word_t *re_bitset_ptr_t;
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204 typedef const bitset_word_t *re_const_bitset_ptr_t;
5968
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205
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
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diff changeset
206 #define PREV_WORD_CONSTRAINT 0x0001
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diff changeset
207 #define PREV_NOTWORD_CONSTRAINT 0x0002
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diff changeset
208 #define NEXT_WORD_CONSTRAINT 0x0004
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parents:
diff changeset
209 #define NEXT_NOTWORD_CONSTRAINT 0x0008
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parents:
diff changeset
210 #define PREV_NEWLINE_CONSTRAINT 0x0010
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
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parents:
diff changeset
211 #define NEXT_NEWLINE_CONSTRAINT 0x0020
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
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parents:
diff changeset
212 #define PREV_BEGBUF_CONSTRAINT 0x0040
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parents:
diff changeset
213 #define NEXT_ENDBUF_CONSTRAINT 0x0080
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
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parents:
diff changeset
214 #define WORD_DELIM_CONSTRAINT 0x0100
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
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parents:
diff changeset
215 #define NOT_WORD_DELIM_CONSTRAINT 0x0200
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parents:
diff changeset
216
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
217 typedef enum
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
218 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
219 INSIDE_WORD = PREV_WORD_CONSTRAINT | NEXT_WORD_CONSTRAINT,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
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parents:
diff changeset
220 WORD_FIRST = PREV_NOTWORD_CONSTRAINT | NEXT_WORD_CONSTRAINT,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
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parents:
diff changeset
221 WORD_LAST = PREV_WORD_CONSTRAINT | NEXT_NOTWORD_CONSTRAINT,
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parents:
diff changeset
222 INSIDE_NOTWORD = PREV_NOTWORD_CONSTRAINT | NEXT_NOTWORD_CONSTRAINT,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
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parents:
diff changeset
223 LINE_FIRST = PREV_NEWLINE_CONSTRAINT,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
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parents:
diff changeset
224 LINE_LAST = NEXT_NEWLINE_CONSTRAINT,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
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parents:
diff changeset
225 BUF_FIRST = PREV_BEGBUF_CONSTRAINT,
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parents:
diff changeset
226 BUF_LAST = NEXT_ENDBUF_CONSTRAINT,
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parents:
diff changeset
227 WORD_DELIM = WORD_DELIM_CONSTRAINT,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
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parents:
diff changeset
228 NOT_WORD_DELIM = NOT_WORD_DELIM_CONSTRAINT
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parents:
diff changeset
229 } re_context_type;
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parents:
diff changeset
230
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
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parents:
diff changeset
231 typedef struct
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
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parents:
diff changeset
232 {
6184
f1728546eca4 On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
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diff changeset
233 Idx alloc;
f1728546eca4 On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
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parents: 6171
diff changeset
234 Idx nelem;
f1728546eca4 On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
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diff changeset
235 Idx *elems;
5968
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
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diff changeset
236 } re_node_set;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
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parents:
diff changeset
237
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
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parents:
diff changeset
238 typedef enum
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
239 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
240 NON_TYPE = 0,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
241
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
242 /* Node type, These are used by token, node, tree. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
243 CHARACTER = 1,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
244 END_OF_RE = 2,
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Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
245 SIMPLE_BRACKET = 3,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
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parents:
diff changeset
246 OP_BACK_REF = 4,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
247 OP_PERIOD = 5,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
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parents:
diff changeset
248 #ifdef RE_ENABLE_I18N
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parents:
diff changeset
249 COMPLEX_BRACKET = 6,
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parents:
diff changeset
250 OP_UTF8_PERIOD = 7,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
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parents:
diff changeset
251 #endif /* RE_ENABLE_I18N */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
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diff changeset
252
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
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parents:
diff changeset
253 /* We define EPSILON_BIT as a macro so that OP_OPEN_SUBEXP is used
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
254 when the debugger shows values of this enum type. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
255 #define EPSILON_BIT 8
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256 OP_OPEN_SUBEXP = EPSILON_BIT | 0,
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257 OP_CLOSE_SUBEXP = EPSILON_BIT | 1,
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258 OP_ALT = EPSILON_BIT | 2,
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259 OP_DUP_ASTERISK = EPSILON_BIT | 3,
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260 ANCHOR = EPSILON_BIT | 4,
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261
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262 /* Tree type, these are used only by tree. */
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diff changeset
263 CONCAT = 16,
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264 SUBEXP = 17,
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265
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266 /* Token type, these are used only by token. */
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267 OP_DUP_PLUS = 18,
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268 OP_DUP_QUESTION,
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diff changeset
269 OP_OPEN_BRACKET,
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270 OP_CLOSE_BRACKET,
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diff changeset
271 OP_CHARSET_RANGE,
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272 OP_OPEN_DUP_NUM,
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273 OP_CLOSE_DUP_NUM,
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274 OP_NON_MATCH_LIST,
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275 OP_OPEN_COLL_ELEM,
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276 OP_CLOSE_COLL_ELEM,
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277 OP_OPEN_EQUIV_CLASS,
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diff changeset
278 OP_CLOSE_EQUIV_CLASS,
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279 OP_OPEN_CHAR_CLASS,
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280 OP_CLOSE_CHAR_CLASS,
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diff changeset
281 OP_WORD,
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diff changeset
282 OP_NOTWORD,
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diff changeset
283 OP_SPACE,
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diff changeset
284 OP_NOTSPACE,
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diff changeset
285 BACK_SLASH
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286
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287 } re_token_type_t;
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288
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289 #ifdef RE_ENABLE_I18N
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290 typedef struct
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291 {
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292 /* Multibyte characters. */
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293 wchar_t *mbchars;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
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294
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
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295 /* Collating symbols. */
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296 # ifdef _LIBC
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297 int32_t *coll_syms;
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298 # endif
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299
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300 /* Equivalence classes. */
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diff changeset
301 # ifdef _LIBC
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302 int32_t *equiv_classes;
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303 # endif
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304
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
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305 /* Range expressions. */
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diff changeset
306 # ifdef _LIBC
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307 uint32_t *range_starts;
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308 uint32_t *range_ends;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
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309 # else /* not _LIBC */
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310 wchar_t *range_starts;
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311 wchar_t *range_ends;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
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diff changeset
312 # endif /* not _LIBC */
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313
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
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314 /* Character classes. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
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315 wctype_t *char_classes;
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316
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
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317 /* If this character set is the non-matching list. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
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318 unsigned int non_match : 1;
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319
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
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320 /* # of multibyte characters. */
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321 Idx nmbchars;
5968
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322
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
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323 /* # of collating symbols. */
6184
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324 Idx ncoll_syms;
5968
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325
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
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326 /* # of equivalence classes. */
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327 Idx nequiv_classes;
5968
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328
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
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329 /* # of range expressions. */
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330 Idx nranges;
5968
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331
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
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332 /* # of character classes. */
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333 Idx nchar_classes;
5968
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334 } re_charset_t;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
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335 #endif /* RE_ENABLE_I18N */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
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336
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
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337 typedef struct
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
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diff changeset
338 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
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diff changeset
339 union
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
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diff changeset
340 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
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341 unsigned char c; /* for CHARACTER */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
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diff changeset
342 re_bitset_ptr_t sbcset; /* for SIMPLE_BRACKET */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
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343 #ifdef RE_ENABLE_I18N
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diff changeset
344 re_charset_t *mbcset; /* for COMPLEX_BRACKET */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
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diff changeset
345 #endif /* RE_ENABLE_I18N */
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346 Idx idx; /* for BACK_REF */
5968
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347 re_context_type ctx_type; /* for ANCHOR */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
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348 } opr;
7689
b4806b1ec9e4 Fix some incompatibilities with gcc -ansi -pedantic.
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349 #if __GNUC__ >= 2 && !__STRICT_ANSI__
5968
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350 re_token_type_t type : 8;
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diff changeset
351 #else
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
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352 re_token_type_t type;
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353 #endif
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
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diff changeset
354 unsigned int constraint : 10; /* context constraint */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
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355 unsigned int duplicated : 1;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
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356 unsigned int opt_subexp : 1;
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357 #ifdef RE_ENABLE_I18N
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358 unsigned int accept_mb : 1;
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diff changeset
359 /* These 2 bits can be moved into the union if needed (e.g. if running out
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
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360 of bits; move opr.c to opr.c.c and move the flags to opr.c.flags). */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
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diff changeset
361 unsigned int mb_partial : 1;
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diff changeset
362 #endif
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
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diff changeset
363 unsigned int word_char : 1;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
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diff changeset
364 } re_token_t;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
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365
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
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366 #define IS_EPSILON_NODE(type) ((type) & EPSILON_BIT)
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367
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
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diff changeset
368 struct re_string_t
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
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diff changeset
369 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
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370 /* Indicate the raw buffer which is the original string passed as an
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
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diff changeset
371 argument of regexec(), re_search(), etc.. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
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diff changeset
372 const unsigned char *raw_mbs;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
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diff changeset
373 /* Store the multibyte string. In case of "case insensitive mode" like
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
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diff changeset
374 REG_ICASE, upper cases of the string are stored, otherwise MBS points
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diff changeset
375 the same address that RAW_MBS points. */
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diff changeset
376 unsigned char *mbs;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
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diff changeset
377 #ifdef RE_ENABLE_I18N
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diff changeset
378 /* Store the wide character string which is corresponding to MBS. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
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diff changeset
379 wint_t *wcs;
6184
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380 Idx *offsets;
5968
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diff changeset
381 mbstate_t cur_state;
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diff changeset
382 #endif
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
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diff changeset
383 /* Index in RAW_MBS. Each character mbs[i] corresponds to
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
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parents:
diff changeset
384 raw_mbs[raw_mbs_idx + i]. */
6184
f1728546eca4 On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
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385 Idx raw_mbs_idx;
5968
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
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diff changeset
386 /* The length of the valid characters in the buffers. */
6184
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diff changeset
387 Idx valid_len;
5968
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
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diff changeset
388 /* The corresponding number of bytes in raw_mbs array. */
6184
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diff changeset
389 Idx valid_raw_len;
5968
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
390 /* The length of the buffers MBS and WCS. */
6184
f1728546eca4 On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents: 6171
diff changeset
391 Idx bufs_len;
5968
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
392 /* The index in MBS, which is updated by re_string_fetch_byte. */
6184
f1728546eca4 On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents: 6171
diff changeset
393 Idx cur_idx;
5968
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
394 /* length of RAW_MBS array. */
6184
f1728546eca4 On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents: 6171
diff changeset
395 Idx raw_len;
5968
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
396 /* This is RAW_LEN - RAW_MBS_IDX + VALID_LEN - VALID_RAW_LEN. */
6184
f1728546eca4 On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents: 6171
diff changeset
397 Idx len;
5968
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
398 /* End of the buffer may be shorter than its length in the cases such
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
399 as re_match_2, re_search_2. Then, we use STOP for end of the buffer
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
400 instead of LEN. */
6184
f1728546eca4 On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents: 6171
diff changeset
401 Idx raw_stop;
5968
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
402 /* This is RAW_STOP - RAW_MBS_IDX adjusted through OFFSETS. */
6184
f1728546eca4 On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents: 6171
diff changeset
403 Idx stop;
5968
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
404
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
405 /* The context of mbs[0]. We store the context independently, since
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
406 the context of mbs[0] may be different from raw_mbs[0], which is
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
407 the beginning of the input string. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
408 unsigned int tip_context;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
409 /* The translation passed as a part of an argument of re_compile_pattern. */
6726
af9abbcedfbd Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents: 6539
diff changeset
410 RE_TRANSLATE_TYPE trans;
5968
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
411 /* Copy of re_dfa_t's word_char. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
412 re_const_bitset_ptr_t word_char;
6195
25eaa608fc4e Use bool where appropriate.
Paul Eggert <eggert@cs.ucla.edu>
parents: 6184
diff changeset
413 /* true if REG_ICASE. */
5968
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
414 unsigned char icase;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
415 unsigned char is_utf8;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
416 unsigned char map_notascii;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
417 unsigned char mbs_allocated;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
418 unsigned char offsets_needed;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
419 unsigned char newline_anchor;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
420 unsigned char word_ops_used;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
421 int mb_cur_max;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
422 };
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
423 typedef struct re_string_t re_string_t;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
424
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
425
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
426 struct re_dfa_t;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
427 typedef struct re_dfa_t re_dfa_t;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
428
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
429 #ifndef _LIBC
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
430 # ifdef __i386__
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
431 # define internal_function __attribute ((regparm (3), stdcall))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
432 # else
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
433 # define internal_function
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
434 # endif
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
435 #endif
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 static reg_errcode_t re_string_realloc_buffers (re_string_t *pstr,
6184
f1728546eca4 On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents: 6171
diff changeset
438 Idx new_buf_len)
5968
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
439 internal_function;
6076
e2dd51f6e259 * config/srclist.txt: Add glibc bugs 1220, 1221, 1222.
Paul Eggert <eggert@cs.ucla.edu>
parents: 5968
diff changeset
440 #ifdef RE_ENABLE_I18N
5968
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
441 static void build_wcs_buffer (re_string_t *pstr) internal_function;
6119
c3bf2ea44695 Make regex safe for g++. This fixes one real bug (an "err"
Paul Eggert <eggert@cs.ucla.edu>
parents: 6101
diff changeset
442 static reg_errcode_t build_wcs_upper_buffer (re_string_t *pstr)
c3bf2ea44695 Make regex safe for g++. This fixes one real bug (an "err"
Paul Eggert <eggert@cs.ucla.edu>
parents: 6101
diff changeset
443 internal_function;
6076
e2dd51f6e259 * config/srclist.txt: Add glibc bugs 1220, 1221, 1222.
Paul Eggert <eggert@cs.ucla.edu>
parents: 5968
diff changeset
444 #endif /* RE_ENABLE_I18N */
5968
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
445 static void build_upper_buffer (re_string_t *pstr) internal_function;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
446 static void re_string_translate_buffer (re_string_t *pstr) internal_function;
6726
af9abbcedfbd Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents: 6539
diff changeset
447 static unsigned int re_string_context_at (const re_string_t *input, Idx idx,
af9abbcedfbd Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents: 6539
diff changeset
448 int eflags)
5968
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
449 internal_function __attribute ((pure));
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
450 #define re_string_peek_byte(pstr, offset) \
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
451 ((pstr)->mbs[(pstr)->cur_idx + offset])
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
452 #define re_string_fetch_byte(pstr) \
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
453 ((pstr)->mbs[(pstr)->cur_idx++])
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
454 #define re_string_first_byte(pstr, idx) \
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
455 ((idx) == (pstr)->valid_len || (pstr)->wcs[idx] != WEOF)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
456 #define re_string_is_single_byte_char(pstr, idx) \
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
457 ((pstr)->wcs[idx] != WEOF && ((pstr)->valid_len == (idx) + 1 \
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
458 || (pstr)->wcs[(idx) + 1] != WEOF))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
459 #define re_string_eoi(pstr) ((pstr)->stop <= (pstr)->cur_idx)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
460 #define re_string_cur_idx(pstr) ((pstr)->cur_idx)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
461 #define re_string_get_buffer(pstr) ((pstr)->mbs)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
462 #define re_string_length(pstr) ((pstr)->len)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
463 #define re_string_byte_at(pstr,idx) ((pstr)->mbs[idx])
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
464 #define re_string_skip_bytes(pstr,idx) ((pstr)->cur_idx += (idx))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
465 #define re_string_set_index(pstr,idx) ((pstr)->cur_idx = (idx))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
466
6125
4af02335816a * config/srclist.txt: Add glibc bug 1245.
Paul Eggert <eggert@cs.ucla.edu>
parents: 6119
diff changeset
467 #include <alloca.h>
4af02335816a * config/srclist.txt: Add glibc bug 1245.
Paul Eggert <eggert@cs.ucla.edu>
parents: 6119
diff changeset
468
6126
3690c96b6da9 Fix typo: __LIBC -> _LIBC.
Paul Eggert <eggert@cs.ucla.edu>
parents: 6125
diff changeset
469 #ifndef _LIBC
6125
4af02335816a * config/srclist.txt: Add glibc bug 1245.
Paul Eggert <eggert@cs.ucla.edu>
parents: 6119
diff changeset
470 # if HAVE_ALLOCA
4af02335816a * config/srclist.txt: Add glibc bug 1245.
Paul Eggert <eggert@cs.ucla.edu>
parents: 6119
diff changeset
471 /* The OS usually guarantees only one guard page at the bottom of the stack,
4af02335816a * config/srclist.txt: Add glibc bug 1245.
Paul Eggert <eggert@cs.ucla.edu>
parents: 6119
diff changeset
472 and a page size can be as small as 4096 bytes. So we cannot safely
4af02335816a * config/srclist.txt: Add glibc bug 1245.
Paul Eggert <eggert@cs.ucla.edu>
parents: 6119
diff changeset
473 allocate anything larger than 4096 bytes. Also care for the possibility
4af02335816a * config/srclist.txt: Add glibc bug 1245.
Paul Eggert <eggert@cs.ucla.edu>
parents: 6119
diff changeset
474 of a few compiler-allocated temporary stack slots. */
4af02335816a * config/srclist.txt: Add glibc bug 1245.
Paul Eggert <eggert@cs.ucla.edu>
parents: 6119
diff changeset
475 # define __libc_use_alloca(n) ((n) < 4032)
4af02335816a * config/srclist.txt: Add glibc bug 1245.
Paul Eggert <eggert@cs.ucla.edu>
parents: 6119
diff changeset
476 # else
4af02335816a * config/srclist.txt: Add glibc bug 1245.
Paul Eggert <eggert@cs.ucla.edu>
parents: 6119
diff changeset
477 /* alloca is implemented with malloc, so just use malloc. */
4af02335816a * config/srclist.txt: Add glibc bug 1245.
Paul Eggert <eggert@cs.ucla.edu>
parents: 6119
diff changeset
478 # define __libc_use_alloca(n) 0
4af02335816a * config/srclist.txt: Add glibc bug 1245.
Paul Eggert <eggert@cs.ucla.edu>
parents: 6119
diff changeset
479 # endif
4af02335816a * config/srclist.txt: Add glibc bug 1245.
Paul Eggert <eggert@cs.ucla.edu>
parents: 6119
diff changeset
480 #endif
4af02335816a * config/srclist.txt: Add glibc bug 1245.
Paul Eggert <eggert@cs.ucla.edu>
parents: 6119
diff changeset
481
6726
af9abbcedfbd Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents: 6539
diff changeset
482 #ifndef MAX
af9abbcedfbd Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents: 6539
diff changeset
483 # define MAX(a,b) ((a) < (b) ? (b) : (a))
6206
ca2f5d46eeb6 Check for arithmetic overflow when calculating sizes, to prevent
Paul Eggert <eggert@cs.ucla.edu>
parents: 6195
diff changeset
484 #endif
ca2f5d46eeb6 Check for arithmetic overflow when calculating sizes, to prevent
Paul Eggert <eggert@cs.ucla.edu>
parents: 6195
diff changeset
485
6726
af9abbcedfbd Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents: 6539
diff changeset
486 #define re_malloc(t,n) ((t *) malloc ((n) * sizeof (t)))
af9abbcedfbd Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents: 6539
diff changeset
487 #define re_realloc(p,t,n) ((t *) realloc (p, (n) * sizeof (t)))
af9abbcedfbd Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents: 6539
diff changeset
488 #define re_free(p) free (p)
6206
ca2f5d46eeb6 Check for arithmetic overflow when calculating sizes, to prevent
Paul Eggert <eggert@cs.ucla.edu>
parents: 6195
diff changeset
489
5968
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
490 struct bin_tree_t
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 struct bin_tree_t *parent;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
493 struct bin_tree_t *left;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
494 struct bin_tree_t *right;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
495 struct bin_tree_t *first;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
496 struct bin_tree_t *next;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
497
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
498 re_token_t token;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
499
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
500 /* `node_idx' is the index in dfa->nodes, if `type' == 0.
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
501 Otherwise `type' indicate the type of this node. */
6184
f1728546eca4 On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents: 6171
diff changeset
502 Idx node_idx;
5968
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
503 };
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
504 typedef struct bin_tree_t bin_tree_t;
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 #define BIN_TREE_STORAGE_SIZE \
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
507 ((1024 - sizeof (void *)) / sizeof (bin_tree_t))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
508
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
509 struct bin_tree_storage_t
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
510 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
511 struct bin_tree_storage_t *next;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
512 bin_tree_t data[BIN_TREE_STORAGE_SIZE];
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
513 };
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
514 typedef struct bin_tree_storage_t bin_tree_storage_t;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
515
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
516 #define CONTEXT_WORD 1
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
517 #define CONTEXT_NEWLINE (CONTEXT_WORD << 1)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
518 #define CONTEXT_BEGBUF (CONTEXT_NEWLINE << 1)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
519 #define CONTEXT_ENDBUF (CONTEXT_BEGBUF << 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 #define IS_WORD_CONTEXT(c) ((c) & CONTEXT_WORD)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
522 #define IS_NEWLINE_CONTEXT(c) ((c) & CONTEXT_NEWLINE)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
523 #define IS_BEGBUF_CONTEXT(c) ((c) & CONTEXT_BEGBUF)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
524 #define IS_ENDBUF_CONTEXT(c) ((c) & CONTEXT_ENDBUF)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
525 #define IS_ORDINARY_CONTEXT(c) ((c) == 0)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
526
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
527 #define IS_WORD_CHAR(ch) (isalnum (ch) || (ch) == '_')
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
528 #define IS_NEWLINE(ch) ((ch) == NEWLINE_CHAR)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
529 #define IS_WIDE_WORD_CHAR(ch) (iswalnum (ch) || (ch) == L'_')
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
530 #define IS_WIDE_NEWLINE(ch) ((ch) == WIDE_NEWLINE_CHAR)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
531
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
532 #define NOT_SATISFY_PREV_CONSTRAINT(constraint,context) \
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
533 ((((constraint) & PREV_WORD_CONSTRAINT) && !IS_WORD_CONTEXT (context)) \
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
534 || ((constraint & PREV_NOTWORD_CONSTRAINT) && IS_WORD_CONTEXT (context)) \
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
535 || ((constraint & PREV_NEWLINE_CONSTRAINT) && !IS_NEWLINE_CONTEXT (context))\
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
536 || ((constraint & PREV_BEGBUF_CONSTRAINT) && !IS_BEGBUF_CONTEXT (context)))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
537
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
538 #define NOT_SATISFY_NEXT_CONSTRAINT(constraint,context) \
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
539 ((((constraint) & NEXT_WORD_CONSTRAINT) && !IS_WORD_CONTEXT (context)) \
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
540 || (((constraint) & NEXT_NOTWORD_CONSTRAINT) && IS_WORD_CONTEXT (context)) \
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
541 || (((constraint) & NEXT_NEWLINE_CONSTRAINT) && !IS_NEWLINE_CONTEXT (context)) \
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
542 || (((constraint) & NEXT_ENDBUF_CONSTRAINT) && !IS_ENDBUF_CONTEXT (context)))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
543
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
544 struct re_dfastate_t
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
545 {
6184
f1728546eca4 On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents: 6171
diff changeset
546 re_hashval_t hash;
5968
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
547 re_node_set nodes;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
548 re_node_set non_eps_nodes;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
549 re_node_set inveclosure;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
550 re_node_set *entrance_nodes;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
551 struct re_dfastate_t **trtable, **word_trtable;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
552 unsigned int context : 4;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
553 unsigned int halt : 1;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
554 /* If this state can accept `multi byte'.
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
555 Note that we refer to multibyte characters, and multi character
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
556 collating elements as `multi byte'. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
557 unsigned int accept_mb : 1;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
558 /* If this state has backreference node(s). */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
559 unsigned int has_backref : 1;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
560 unsigned int has_constraint : 1;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
561 };
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
562 typedef struct re_dfastate_t re_dfastate_t;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
563
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
564 struct re_state_table_entry
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
565 {
6184
f1728546eca4 On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents: 6171
diff changeset
566 Idx num;
f1728546eca4 On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents: 6171
diff changeset
567 Idx alloc;
5968
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
568 re_dfastate_t **array;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
569 };
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
570
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
571 /* Array type used in re_sub_match_last_t and re_sub_match_top_t. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
572
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
573 typedef struct
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
574 {
6184
f1728546eca4 On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents: 6171
diff changeset
575 Idx next_idx;
f1728546eca4 On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents: 6171
diff changeset
576 Idx alloc;
5968
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
577 re_dfastate_t **array;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
578 } state_array_t;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
579
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
580 /* Store information about the node NODE whose type is OP_CLOSE_SUBEXP. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
581
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
582 typedef struct
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
583 {
6184
f1728546eca4 On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents: 6171
diff changeset
584 Idx node;
f1728546eca4 On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents: 6171
diff changeset
585 Idx str_idx; /* The position NODE match at. */
5968
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
586 state_array_t path;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
587 } re_sub_match_last_t;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
588
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
589 /* Store information about the node NODE whose type is OP_OPEN_SUBEXP.
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
590 And information about the node, whose type is OP_CLOSE_SUBEXP,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
591 corresponding to NODE is stored in LASTS. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
592
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
593 typedef struct
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
594 {
6184
f1728546eca4 On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents: 6171
diff changeset
595 Idx str_idx;
f1728546eca4 On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents: 6171
diff changeset
596 Idx node;
5968
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
597 state_array_t *path;
6184
f1728546eca4 On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents: 6171
diff changeset
598 Idx alasts; /* Allocation size of LASTS. */
f1728546eca4 On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents: 6171
diff changeset
599 Idx nlasts; /* The number of LASTS. */
5968
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
600 re_sub_match_last_t **lasts;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
601 } re_sub_match_top_t;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
602
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
603 struct re_backref_cache_entry
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
604 {
6184
f1728546eca4 On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents: 6171
diff changeset
605 Idx node;
f1728546eca4 On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents: 6171
diff changeset
606 Idx str_idx;
f1728546eca4 On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents: 6171
diff changeset
607 Idx subexp_from;
f1728546eca4 On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents: 6171
diff changeset
608 Idx subexp_to;
5968
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
609 char more;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
610 char unused;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
611 unsigned short int eps_reachable_subexps_map;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
612 };
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
613
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
614 typedef struct
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
615 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
616 /* The string object corresponding to the input string. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
617 re_string_t input;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
618 #if defined _LIBC || (defined __STDC_VERSION__ && __STDC_VERSION__ >= 199901L)
6726
af9abbcedfbd Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents: 6539
diff changeset
619 const re_dfa_t *const dfa;
5968
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
620 #else
6726
af9abbcedfbd Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents: 6539
diff changeset
621 const re_dfa_t *dfa;
5968
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
622 #endif
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
623 /* EFLAGS of the argument of regexec. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
624 int eflags;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
625 /* Where the matching ends. */
6184
f1728546eca4 On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents: 6171
diff changeset
626 Idx match_last;
f1728546eca4 On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents: 6171
diff changeset
627 Idx last_node;
5968
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
628 /* The state log used by the matcher. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
629 re_dfastate_t **state_log;
6184
f1728546eca4 On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents: 6171
diff changeset
630 Idx state_log_top;
5968
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
631 /* Back reference cache. */
6184
f1728546eca4 On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents: 6171
diff changeset
632 Idx nbkref_ents;
f1728546eca4 On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents: 6171
diff changeset
633 Idx abkref_ents;
5968
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
634 struct re_backref_cache_entry *bkref_ents;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
635 int max_mb_elem_len;
6184
f1728546eca4 On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents: 6171
diff changeset
636 Idx nsub_tops;
f1728546eca4 On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents: 6171
diff changeset
637 Idx asub_tops;
5968
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
638 re_sub_match_top_t **sub_tops;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
639 } re_match_context_t;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
640
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
641 typedef struct
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
642 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
643 re_dfastate_t **sifted_states;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
644 re_dfastate_t **limited_states;
6184
f1728546eca4 On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents: 6171
diff changeset
645 Idx last_node;
f1728546eca4 On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents: 6171
diff changeset
646 Idx last_str_idx;
5968
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
647 re_node_set limits;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
648 } re_sift_context_t;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
649
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
650 struct re_fail_stack_ent_t
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
651 {
6184
f1728546eca4 On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents: 6171
diff changeset
652 Idx idx;
f1728546eca4 On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents: 6171
diff changeset
653 Idx node;
5968
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
654 regmatch_t *regs;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
655 re_node_set eps_via_nodes;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
656 };
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
657
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
658 struct re_fail_stack_t
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
659 {
6184
f1728546eca4 On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents: 6171
diff changeset
660 Idx num;
f1728546eca4 On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents: 6171
diff changeset
661 Idx alloc;
5968
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
662 struct re_fail_stack_ent_t *stack;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
663 };
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
664
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
665 struct re_dfa_t
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
666 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
667 re_token_t *nodes;
6726
af9abbcedfbd Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents: 6539
diff changeset
668 size_t nodes_alloc;
af9abbcedfbd Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents: 6539
diff changeset
669 size_t nodes_len;
6184
f1728546eca4 On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents: 6171
diff changeset
670 Idx *nexts;
f1728546eca4 On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents: 6171
diff changeset
671 Idx *org_indices;
5968
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
672 re_node_set *edests;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
673 re_node_set *eclosures;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
674 re_node_set *inveclosures;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
675 struct re_state_table_entry *state_table;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
676 re_dfastate_t *init_state;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
677 re_dfastate_t *init_state_word;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
678 re_dfastate_t *init_state_nl;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
679 re_dfastate_t *init_state_begbuf;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
680 bin_tree_t *str_tree;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
681 bin_tree_storage_t *str_tree_storage;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
682 re_bitset_ptr_t sb_char;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
683 int str_tree_storage_idx;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
684
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
685 /* number of subexpressions `re_nsub' is in regex_t. */
6184
f1728546eca4 On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents: 6171
diff changeset
686 re_hashval_t state_hash_mask;
f1728546eca4 On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents: 6171
diff changeset
687 Idx init_node;
f1728546eca4 On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents: 6171
diff changeset
688 Idx nbackref; /* The number of backreference in this dfa. */
5968
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 /* Bitmap expressing which backreference is used. */
6726
af9abbcedfbd Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents: 6539
diff changeset
691 bitset_word_t used_bkref_map;
af9abbcedfbd Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents: 6539
diff changeset
692 bitset_word_t completed_bkref_map;
5968
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 unsigned int has_plural_match : 1;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
695 /* If this dfa has "multibyte node", which is a backreference or
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
696 a node which can accept multibyte character or multi character
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
697 collating element. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
698 unsigned int has_mb_node : 1;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
699 unsigned int is_utf8 : 1;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
700 unsigned int map_notascii : 1;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
701 unsigned int word_ops_used : 1;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
702 int mb_cur_max;
6726
af9abbcedfbd Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents: 6539
diff changeset
703 bitset_t word_char;
5968
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
704 reg_syntax_t syntax;
6184
f1728546eca4 On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents: 6171
diff changeset
705 Idx *subexp_map;
5968
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
706 #ifdef DEBUG
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
707 char* re_str;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
708 #endif
7066
3288bb324a28 * regex_internal.h (struct re_dfa_t) [!_LIBC]: Avoid invalid C89
Eric Blake <ebb9@byu.net>
parents: 6932
diff changeset
709 #ifdef _LIBC
5968
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
710 __libc_lock_define (, lock)
7066
3288bb324a28 * regex_internal.h (struct re_dfa_t) [!_LIBC]: Avoid invalid C89
Eric Blake <ebb9@byu.net>
parents: 6932
diff changeset
711 #endif
5968
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
712 };
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
713
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
714 #define re_node_set_init_empty(set) memset (set, '\0', sizeof (re_node_set))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
715 #define re_node_set_remove(set,id) \
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
716 (re_node_set_remove_at (set, re_node_set_contains (set, id) - 1))
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
717 #define re_node_set_empty(p) ((p)->nelem = 0)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
718 #define re_node_set_free(set) re_free ((set)->elems)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
719
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
720
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
721 typedef enum
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
722 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
723 SB_CHAR,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
724 MB_CHAR,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
725 EQUIV_CLASS,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
726 COLL_SYM,
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
727 CHAR_CLASS
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
728 } bracket_elem_type;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
729
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
730 typedef struct
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
731 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
732 bracket_elem_type type;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
733 union
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 unsigned char ch;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
736 unsigned char *name;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
737 wchar_t wch;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
738 } opr;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
739 } bracket_elem_t;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
740
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
741
6726
af9abbcedfbd Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents: 6539
diff changeset
742 /* Inline functions for bitset_t operation. */
6214
afb93b90dcb8 Change bitset word type from unsigned int to unsigned long int,
Paul Eggert <eggert@cs.ucla.edu>
parents: 6206
diff changeset
743
afb93b90dcb8 Change bitset word type from unsigned int to unsigned long int,
Paul Eggert <eggert@cs.ucla.edu>
parents: 6206
diff changeset
744 static inline void
6726
af9abbcedfbd Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents: 6539
diff changeset
745 bitset_set (bitset_t set, Idx i)
6214
afb93b90dcb8 Change bitset word type from unsigned int to unsigned long int,
Paul Eggert <eggert@cs.ucla.edu>
parents: 6206
diff changeset
746 {
6726
af9abbcedfbd Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents: 6539
diff changeset
747 set[i / BITSET_WORD_BITS] |= (bitset_word_t) 1 << i % BITSET_WORD_BITS;
6214
afb93b90dcb8 Change bitset word type from unsigned int to unsigned long int,
Paul Eggert <eggert@cs.ucla.edu>
parents: 6206
diff changeset
748 }
afb93b90dcb8 Change bitset word type from unsigned int to unsigned long int,
Paul Eggert <eggert@cs.ucla.edu>
parents: 6206
diff changeset
749
afb93b90dcb8 Change bitset word type from unsigned int to unsigned long int,
Paul Eggert <eggert@cs.ucla.edu>
parents: 6206
diff changeset
750 static inline void
6726
af9abbcedfbd Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents: 6539
diff changeset
751 bitset_clear (bitset_t set, Idx i)
6214
afb93b90dcb8 Change bitset word type from unsigned int to unsigned long int,
Paul Eggert <eggert@cs.ucla.edu>
parents: 6206
diff changeset
752 {
6726
af9abbcedfbd Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents: 6539
diff changeset
753 set[i / BITSET_WORD_BITS] &= ~ ((bitset_word_t) 1 << i % BITSET_WORD_BITS);
6214
afb93b90dcb8 Change bitset word type from unsigned int to unsigned long int,
Paul Eggert <eggert@cs.ucla.edu>
parents: 6206
diff changeset
754 }
afb93b90dcb8 Change bitset word type from unsigned int to unsigned long int,
Paul Eggert <eggert@cs.ucla.edu>
parents: 6206
diff changeset
755
afb93b90dcb8 Change bitset word type from unsigned int to unsigned long int,
Paul Eggert <eggert@cs.ucla.edu>
parents: 6206
diff changeset
756 static inline bool
6726
af9abbcedfbd Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents: 6539
diff changeset
757 bitset_contain (const bitset_t set, Idx i)
6214
afb93b90dcb8 Change bitset word type from unsigned int to unsigned long int,
Paul Eggert <eggert@cs.ucla.edu>
parents: 6206
diff changeset
758 {
afb93b90dcb8 Change bitset word type from unsigned int to unsigned long int,
Paul Eggert <eggert@cs.ucla.edu>
parents: 6206
diff changeset
759 return (set[i / BITSET_WORD_BITS] >> i % BITSET_WORD_BITS) & 1;
afb93b90dcb8 Change bitset word type from unsigned int to unsigned long int,
Paul Eggert <eggert@cs.ucla.edu>
parents: 6206
diff changeset
760 }
afb93b90dcb8 Change bitset word type from unsigned int to unsigned long int,
Paul Eggert <eggert@cs.ucla.edu>
parents: 6206
diff changeset
761
afb93b90dcb8 Change bitset word type from unsigned int to unsigned long int,
Paul Eggert <eggert@cs.ucla.edu>
parents: 6206
diff changeset
762 static inline void
6726
af9abbcedfbd Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents: 6539
diff changeset
763 bitset_empty (bitset_t set)
6214
afb93b90dcb8 Change bitset word type from unsigned int to unsigned long int,
Paul Eggert <eggert@cs.ucla.edu>
parents: 6206
diff changeset
764 {
6726
af9abbcedfbd Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents: 6539
diff changeset
765 memset (set, '\0', sizeof (bitset_t));
6214
afb93b90dcb8 Change bitset word type from unsigned int to unsigned long int,
Paul Eggert <eggert@cs.ucla.edu>
parents: 6206
diff changeset
766 }
afb93b90dcb8 Change bitset word type from unsigned int to unsigned long int,
Paul Eggert <eggert@cs.ucla.edu>
parents: 6206
diff changeset
767
afb93b90dcb8 Change bitset word type from unsigned int to unsigned long int,
Paul Eggert <eggert@cs.ucla.edu>
parents: 6206
diff changeset
768 static inline void
6726
af9abbcedfbd Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents: 6539
diff changeset
769 bitset_set_all (bitset_t set)
6214
afb93b90dcb8 Change bitset word type from unsigned int to unsigned long int,
Paul Eggert <eggert@cs.ucla.edu>
parents: 6206
diff changeset
770 {
6726
af9abbcedfbd Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents: 6539
diff changeset
771 memset (set, -1, sizeof (bitset_word_t) * (SBC_MAX / BITSET_WORD_BITS));
6214
afb93b90dcb8 Change bitset word type from unsigned int to unsigned long int,
Paul Eggert <eggert@cs.ucla.edu>
parents: 6206
diff changeset
772 if (SBC_MAX % BITSET_WORD_BITS != 0)
afb93b90dcb8 Change bitset word type from unsigned int to unsigned long int,
Paul Eggert <eggert@cs.ucla.edu>
parents: 6206
diff changeset
773 set[BITSET_WORDS - 1] =
6726
af9abbcedfbd Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents: 6539
diff changeset
774 ((bitset_word_t) 1 << SBC_MAX % BITSET_WORD_BITS) - 1;
6214
afb93b90dcb8 Change bitset word type from unsigned int to unsigned long int,
Paul Eggert <eggert@cs.ucla.edu>
parents: 6206
diff changeset
775 }
afb93b90dcb8 Change bitset word type from unsigned int to unsigned long int,
Paul Eggert <eggert@cs.ucla.edu>
parents: 6206
diff changeset
776
afb93b90dcb8 Change bitset word type from unsigned int to unsigned long int,
Paul Eggert <eggert@cs.ucla.edu>
parents: 6206
diff changeset
777 static inline void
6726
af9abbcedfbd Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents: 6539
diff changeset
778 bitset_copy (bitset_t dest, const bitset_t src)
6214
afb93b90dcb8 Change bitset word type from unsigned int to unsigned long int,
Paul Eggert <eggert@cs.ucla.edu>
parents: 6206
diff changeset
779 {
6726
af9abbcedfbd Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents: 6539
diff changeset
780 memcpy (dest, src, sizeof (bitset_t));
6214
afb93b90dcb8 Change bitset word type from unsigned int to unsigned long int,
Paul Eggert <eggert@cs.ucla.edu>
parents: 6206
diff changeset
781 }
afb93b90dcb8 Change bitset word type from unsigned int to unsigned long int,
Paul Eggert <eggert@cs.ucla.edu>
parents: 6206
diff changeset
782
5968
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
783 static inline void
6726
af9abbcedfbd Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents: 6539
diff changeset
784 bitset_not (bitset_t set)
5968
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
785 {
6726
af9abbcedfbd Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents: 6539
diff changeset
786 int bitset_i;
af9abbcedfbd Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents: 6539
diff changeset
787 for (bitset_i = 0; bitset_i < SBC_MAX / BITSET_WORD_BITS; ++bitset_i)
af9abbcedfbd Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents: 6539
diff changeset
788 set[bitset_i] = ~set[bitset_i];
6214
afb93b90dcb8 Change bitset word type from unsigned int to unsigned long int,
Paul Eggert <eggert@cs.ucla.edu>
parents: 6206
diff changeset
789 if (SBC_MAX % BITSET_WORD_BITS != 0)
afb93b90dcb8 Change bitset word type from unsigned int to unsigned long int,
Paul Eggert <eggert@cs.ucla.edu>
parents: 6206
diff changeset
790 set[BITSET_WORDS - 1] =
6726
af9abbcedfbd Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents: 6539
diff changeset
791 ((((bitset_word_t) 1 << SBC_MAX % BITSET_WORD_BITS) - 1)
6214
afb93b90dcb8 Change bitset word type from unsigned int to unsigned long int,
Paul Eggert <eggert@cs.ucla.edu>
parents: 6206
diff changeset
792 & ~set[BITSET_WORDS - 1]);
5968
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 static inline void
6726
af9abbcedfbd Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents: 6539
diff changeset
796 bitset_merge (bitset_t dest, const bitset_t src)
5968
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
797 {
6726
af9abbcedfbd Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents: 6539
diff changeset
798 int bitset_i;
af9abbcedfbd Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents: 6539
diff changeset
799 for (bitset_i = 0; bitset_i < BITSET_WORDS; ++bitset_i)
af9abbcedfbd Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents: 6539
diff changeset
800 dest[bitset_i] |= src[bitset_i];
5968
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
801 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
802
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
803 static inline void
6726
af9abbcedfbd Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents: 6539
diff changeset
804 bitset_mask (bitset_t dest, const bitset_t src)
5968
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
805 {
6726
af9abbcedfbd Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents: 6539
diff changeset
806 int bitset_i;
af9abbcedfbd Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents: 6539
diff changeset
807 for (bitset_i = 0; bitset_i < BITSET_WORDS; ++bitset_i)
af9abbcedfbd Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents: 6539
diff changeset
808 dest[bitset_i] &= src[bitset_i];
5968
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
809 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
810
6726
af9abbcedfbd Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents: 6539
diff changeset
811 #ifdef RE_ENABLE_I18N
5968
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
812 /* Inline functions for re_string. */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
813 static inline int
6129
2fce0cb93f59 * config/srclist.text: Add glibc bug 1248.
Paul Eggert <eggert@cs.ucla.edu>
parents: 6126
diff changeset
814 internal_function __attribute ((pure))
6184
f1728546eca4 On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents: 6171
diff changeset
815 re_string_char_size_at (const re_string_t *pstr, Idx idx)
5968
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
816 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
817 int byte_idx;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
818 if (pstr->mb_cur_max == 1)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
819 return 1;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
820 for (byte_idx = 1; idx + byte_idx < pstr->valid_len; ++byte_idx)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
821 if (pstr->wcs[idx + byte_idx] != WEOF)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
822 break;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
823 return byte_idx;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
824 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
825
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
826 static inline wint_t
6129
2fce0cb93f59 * config/srclist.text: Add glibc bug 1248.
Paul Eggert <eggert@cs.ucla.edu>
parents: 6126
diff changeset
827 internal_function __attribute ((pure))
6184
f1728546eca4 On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents: 6171
diff changeset
828 re_string_wchar_at (const re_string_t *pstr, Idx idx)
5968
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
829 {
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
830 if (pstr->mb_cur_max == 1)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
831 return (wint_t) pstr->mbs[idx];
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
832 return (wint_t) pstr->wcs[idx];
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
833 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
834
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
835 static int
6129
2fce0cb93f59 * config/srclist.text: Add glibc bug 1248.
Paul Eggert <eggert@cs.ucla.edu>
parents: 6126
diff changeset
836 internal_function __attribute ((pure))
6184
f1728546eca4 On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents: 6171
diff changeset
837 re_string_elem_size_at (const re_string_t *pstr, Idx idx)
5968
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
838 {
6726
af9abbcedfbd Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents: 6539
diff changeset
839 # ifdef _LIBC
5968
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
840 const unsigned char *p, *extra;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
841 const int32_t *table, *indirect;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
842 int32_t tmp;
6726
af9abbcedfbd Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents: 6539
diff changeset
843 # include <locale/weight.h>
5968
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
844 uint_fast32_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
845
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
846 if (nrules != 0)
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 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
849 extra = (const unsigned char *)
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
850 _NL_CURRENT (LC_COLLATE, _NL_COLLATE_EXTRAMB);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
851 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
852 _NL_COLLATE_INDIRECTMB);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
853 p = pstr->mbs + idx;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
854 tmp = findidx (&p);
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
855 return p - pstr->mbs - idx;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
856 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
857 else
6726
af9abbcedfbd Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents: 6539
diff changeset
858 # endif /* _LIBC */
5968
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
859 return 1;
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
860 }
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
861 #endif /* RE_ENABLE_I18N */
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
862
541fed6ae301 * modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff changeset
863 #endif /* _REGEX_INTERNAL_H */