Mercurial > hg > octave-lojdl > gnulib-hg
annotate regex.c @ 2357:419f0813676a
(re_compile_fastmap, re_match_2_internal): Fix cast to re_opcode_t.
| author | Dave Love <fx@gnu.org> |
|---|---|
| date | Wed, 22 Mar 2000 14:25:38 +0000 |
| parents | d93889e88226 |
| children | dbf725277cfc |
| rev | line source |
|---|---|
| 679 | 1 /* Extended regular expression matching and search library, version |
| 2 0.12. (Implements POSIX draft P10003.2/D11.2, except for | |
| 2 | 3 internationalization features.) |
| 4 | |
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5 Copyright (C) 1993,94,95,96,97,98,2000 Free Software Foundation, Inc. |
| 2 | 6 |
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7 This program is free software; you can redistribute it and/or modify |
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8 it under the terms of the GNU General Public License as published by |
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9 the Free Software Foundation; either version 2, or (at your option) |
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10 any later version. |
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11 |
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12 This program is distributed in the hope that it will be useful, |
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13 but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 941 | 14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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15 GNU General Public License for more details. |
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16 |
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17 You should have received a copy of the GNU General Public License |
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18 along with this program; if not, write to the Free Software |
| 542 | 19 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, |
| 941 | 20 USA. */ |
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21 |
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22 /* TODO: |
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23 - detect nasty infinite loops like "\\(\\)+?ab" when matching "ac". |
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24 - use analyze_first to optimize non-empty loops |
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25 - reduce code duplication |
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26 - optimize succeed_n and jump_n away when possible |
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27 - clean up multibyte issues |
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28 - structure the opcode space into opcode+flag. |
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29 - merge with glic's regex.[ch] |
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30 |
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31 That's it for now -sm */ |
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32 |
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33 /* AIX requires this to be the first thing in the file. */ |
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34 #if defined (_AIX) && !defined (REGEX_MALLOC) |
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35 #pragma alloca |
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36 #endif |
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37 |
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38 #undef _GNU_SOURCE |
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39 #define _GNU_SOURCE |
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40 |
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41 #ifdef emacs |
| 941 | 42 /* Converts the pointer to the char to BEG-based offset from the start. */ |
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43 #define PTR_TO_OFFSET(d) POS_AS_IN_BUFFER (POINTER_TO_OFFSET (d)) |
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44 #define POS_AS_IN_BUFFER(p) ((p) + (NILP (re_match_object) || BUFFERP (re_match_object))) |
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45 #else |
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46 #define PTR_TO_OFFSET(d) 0 |
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47 #endif |
| 939 | 48 |
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49 #ifdef HAVE_CONFIG_H |
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50 #include <config.h> |
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51 #endif |
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52 |
| 941 | 53 /* We need this for `regex.h', and perhaps for the Emacs include files. */ |
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54 #include <sys/types.h> |
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55 |
| 941 | 56 /* This is for other GNU distributions with internationalized messages. */ |
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57 #if HAVE_LIBINTL_H || defined (_LIBC) |
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58 # include <libintl.h> |
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59 #else |
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60 # define gettext(msgid) (msgid) |
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61 #endif |
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62 |
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63 #ifndef gettext_noop |
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64 /* This define is so xgettext can find the internationalizable |
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65 strings. */ |
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66 #define gettext_noop(String) String |
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67 #endif |
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68 |
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69 /* The `emacs' switch turns on certain matching commands |
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70 that make sense only in Emacs. */ |
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71 #ifdef emacs |
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72 |
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73 #include "lisp.h" |
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74 #include "buffer.h" |
| 939 | 75 |
| 76 /* Make syntax table lookup grant data in gl_state. */ | |
| 77 #define SYNTAX_ENTRY_VIA_PROPERTY | |
| 78 | |
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79 #include "syntax.h" |
| 939 | 80 #include "charset.h" |
| 81 #include "category.h" | |
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82 |
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83 #define malloc xmalloc |
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84 #define realloc xrealloc |
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85 #define free xfree |
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86 |
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87 #define RE_STRING_CHAR(p, s) \ |
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88 (multibyte ? (STRING_CHAR (p, s)) : (*(p))) |
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89 |
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90 #else /* not emacs */ |
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91 |
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92 /* If we are not linking with Emacs proper, |
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93 we can't use the relocating allocator |
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94 even if config.h says that we can. */ |
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95 #undef REL_ALLOC |
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96 |
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97 #if defined (STDC_HEADERS) || defined (_LIBC) |
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98 #include <stdlib.h> |
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99 #else |
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100 char *malloc (); |
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101 char *realloc (); |
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102 #endif |
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103 |
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104 /* When used in Emacs's lib-src, we need to get bzero and bcopy somehow. |
| 941 | 105 If nothing else has been done, use the method below. */ |
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106 #ifdef INHIBIT_STRING_HEADER |
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107 #if !(defined (HAVE_BZERO) && defined (HAVE_BCOPY)) |
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108 #if !defined (bzero) && !defined (bcopy) |
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109 #undef INHIBIT_STRING_HEADER |
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110 #endif |
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111 #endif |
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112 #endif |
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113 |
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114 /* This is the normal way of making sure we have a bcopy and a bzero. |
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115 This is used in most programs--a few other programs avoid this |
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116 by defining INHIBIT_STRING_HEADER. */ |
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117 #ifndef INHIBIT_STRING_HEADER |
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118 #if defined (HAVE_STRING_H) || defined (STDC_HEADERS) || defined (_LIBC) |
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119 #include <string.h> |
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120 #ifndef bcmp |
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121 #define bcmp(s1, s2, n) memcmp ((s1), (s2), (n)) |
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122 #endif |
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123 #ifndef bcopy |
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124 #define bcopy(s, d, n) memcpy ((d), (s), (n)) |
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125 #endif |
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126 #ifndef bzero |
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127 #define bzero(s, n) memset ((s), 0, (n)) |
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128 #endif |
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129 #else |
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130 #include <strings.h> |
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131 #endif |
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132 #endif |
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133 |
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134 /* Define the syntax stuff for \<, \>, etc. */ |
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135 |
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136 /* This must be nonzero for the wordchar pattern |
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137 commands in re_match_2. */ |
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138 #ifndef Sword |
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139 #define Sword 1 |
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140 #endif |
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141 |
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142 #ifdef SWITCH_ENUM_BUG |
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143 #define SWITCH_ENUM_CAST(x) ((int)(x)) |
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144 #else |
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145 #define SWITCH_ENUM_CAST(x) (x) |
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146 #endif |
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147 |
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148 #ifdef SYNTAX_TABLE |
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149 |
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150 extern char *re_syntax_table; |
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151 |
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152 #else /* not SYNTAX_TABLE */ |
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153 |
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154 /* How many characters in the character set. */ |
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155 #define CHAR_SET_SIZE 256 |
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156 |
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157 static char re_syntax_table[CHAR_SET_SIZE]; |
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158 |
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159 static void |
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160 init_syntax_once () |
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161 { |
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162 register int c; |
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163 static int done = 0; |
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164 |
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165 if (done) |
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166 return; |
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167 |
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168 bzero (re_syntax_table, sizeof re_syntax_table); |
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169 |
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170 for (c = 'a'; c <= 'z'; c++) |
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171 re_syntax_table[c] = Sword; |
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172 |
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173 for (c = 'A'; c <= 'Z'; c++) |
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174 re_syntax_table[c] = Sword; |
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175 |
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176 for (c = '0'; c <= '9'; c++) |
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177 re_syntax_table[c] = Sword; |
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178 |
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179 re_syntax_table['_'] = Sword; |
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180 |
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181 done = 1; |
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182 } |
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183 |
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184 #endif /* not SYNTAX_TABLE */ |
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185 |
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186 #define SYNTAX(c) re_syntax_table[c] |
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187 |
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188 /* Dummy macros for non-Emacs environments. */ |
| 939 | 189 #define BASE_LEADING_CODE_P(c) (0) |
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190 #define CHAR_CHARSET(c) 0 |
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191 #define CHARSET_LEADING_CODE_BASE(c) 0 |
| 939 | 192 #define WORD_BOUNDARY_P(c1, c2) (0) |
| 193 #define CHAR_HEAD_P(p) (1) | |
| 194 #define SINGLE_BYTE_CHAR_P(c) (1) | |
| 195 #define SAME_CHARSET_P(c1, c2) (1) | |
| 196 #define MULTIBYTE_FORM_LENGTH(p, s) (1) | |
| 197 #define STRING_CHAR(p, s) (*(p)) | |
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198 #define RE_STRING_CHAR STRING_CHAR |
| 939 | 199 #define STRING_CHAR_AND_LENGTH(p, s, actual_len) ((actual_len) = 1, *(p)) |
| 200 #define GET_CHAR_BEFORE_2(c, p, str1, end1, str2, end2) \ | |
| 201 (c = ((p) == (str2) ? *((end1) - 1) : *((p) - 1))) | |
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202 #endif /* not emacs */ |
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203 |
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204 #ifndef RE_TRANSLATE |
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205 #define RE_TRANSLATE(TBL, C) ((unsigned char)(TBL)[C]) |
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206 #define RE_TRANSLATE_P(TBL) (TBL) |
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207 #endif |
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208 |
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209 /* Get the interface, including the syntax bits. */ |
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210 #include "regex.h" |
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211 |
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212 /* isalpha etc. are used for the character classes. */ |
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213 #include <ctype.h> |
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214 |
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215 #ifdef emacs |
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216 |
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217 /* 1 if C is an ASCII character. */ |
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218 #define IS_REAL_ASCII(c) ((c) < 0200) |
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219 |
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220 /* 1 if C is a unibyte character. */ |
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221 #define ISUNIBYTE(c) (SINGLE_BYTE_CHAR_P ((c))) |
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222 |
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223 /* The Emacs definitions should not be directly affected by locales. */ |
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224 |
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225 /* In Emacs, these are only used for single-byte characters. */ |
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226 #define ISDIGIT(c) ((c) >= '0' && (c) <= '9') |
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227 #define ISCNTRL(c) ((c) < ' ') |
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228 #define ISXDIGIT(c) (((c) >= '0' && (c) <= '9') \ |
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229 || ((c) >= 'a' && (c) <= 'f') \ |
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230 || ((c) >= 'A' && (c) <= 'F')) |
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231 |
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232 /* This is only used for single-byte characters. */ |
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233 #define ISBLANK(c) ((c) == ' ' || (c) == '\t') |
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234 |
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235 /* The rest must handle multibyte characters. */ |
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236 |
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237 #define ISGRAPH(c) (SINGLE_BYTE_CHAR_P (c) \ |
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238 ? (c) > ' ' && !((c) >= 0177 && (c) <= 0237) \ |
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239 : 1) |
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240 |
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241 #define ISPRINT(c) (SINGLE_BYTE_CHAR_P (c) \ |
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242 ? (c) >= ' ' && !((c) >= 0177 && (c) <= 0237) \ |
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243 : 1) |
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244 |
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245 #define ISALNUM(c) (IS_REAL_ASCII (c) \ |
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246 ? (((c) >= 'a' && (c) <= 'z') \ |
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247 || ((c) >= 'A' && (c) <= 'Z') \ |
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248 || ((c) >= '0' && (c) <= '9')) \ |
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249 : SYNTAX (c) == Sword) |
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250 |
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251 #define ISALPHA(c) (IS_REAL_ASCII (c) \ |
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252 ? (((c) >= 'a' && (c) <= 'z') \ |
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253 || ((c) >= 'A' && (c) <= 'Z')) \ |
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254 : SYNTAX (c) == Sword) |
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255 |
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256 #define ISLOWER(c) (LOWERCASEP (c)) |
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257 |
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258 #define ISPUNCT(c) (IS_REAL_ASCII (c) \ |
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259 ? ((c) > ' ' && (c) < 0177 \ |
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260 && !(((c) >= 'a' && (c) <= 'z') \ |
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261 || ((c) >= 'A' && (c) <= 'Z') \ |
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262 || ((c) >= '0' && (c) <= '9'))) \ |
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263 : SYNTAX (c) != Sword) |
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264 |
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265 #define ISSPACE(c) (SYNTAX (c) == Swhitespace) |
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266 |
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267 #define ISUPPER(c) (UPPERCASEP (c)) |
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268 |
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269 #define ISWORD(c) (SYNTAX (c) == Sword) |
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270 |
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271 #else /* not emacs */ |
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272 |
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273 /* Jim Meyering writes: |
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274 |
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275 "... Some ctype macros are valid only for character codes that |
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276 isascii says are ASCII (SGI's IRIX-4.0.5 is one such system --when |
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277 using /bin/cc or gcc but without giving an ansi option). So, all |
| 941 | 278 ctype uses should be through macros like ISPRINT... If |
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279 STDC_HEADERS is defined, then autoconf has verified that the ctype |
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280 macros don't need to be guarded with references to isascii. ... |
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281 Defining isascii to 1 should let any compiler worth its salt |
| 941 | 282 eliminate the && through constant folding." */ |
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283 |
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284 #if defined (STDC_HEADERS) || (!defined (isascii) && !defined (HAVE_ISASCII)) |
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285 #define ISASCII(c) 1 |
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286 #else |
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287 #define ISASCII(c) isascii(c) |
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288 #endif |
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289 |
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290 /* 1 if C is an ASCII character. */ |
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291 #define IS_REAL_ASCII(c) ((c) < 0200) |
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292 |
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293 /* This distinction is not meaningful, except in Emacs. */ |
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294 #define ISUNIBYTE(c) 1 |
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295 |
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296 #define ISDIGIT(c) (ISASCII (c) && isdigit (c)) |
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297 #define ISCNTRL(c) (ISASCII (c) && iscntrl (c)) |
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298 #define ISXDIGIT(c) (ISASCII (c) && isxdigit (c)) |
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299 |
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300 #ifdef isblank |
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301 #define ISBLANK(c) (ISASCII (c) && isblank (c)) |
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302 #else |
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303 #define ISBLANK(c) ((c) == ' ' || (c) == '\t') |
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304 #endif |
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305 #ifdef isgraph |
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306 #define ISGRAPH(c) (ISASCII (c) && isgraph (c)) |
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307 #else |
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308 #define ISGRAPH(c) (ISASCII (c) && isprint (c) && !isspace (c)) |
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309 #endif |
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310 |
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311 #define ISPRINT(c) (ISASCII (c) && isprint (c)) |
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312 #define ISDIGIT(c) (ISASCII (c) && isdigit (c)) |
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313 #define ISALNUM(c) (ISASCII (c) && isalnum (c)) |
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314 #define ISALPHA(c) (ISASCII (c) && isalpha (c)) |
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315 #define ISCNTRL(c) (ISASCII (c) && iscntrl (c)) |
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316 #define ISLOWER(c) (ISASCII (c) && islower (c)) |
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317 #define ISPUNCT(c) (ISASCII (c) && ispunct (c)) |
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318 #define ISSPACE(c) (ISASCII (c) && isspace (c)) |
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319 #define ISUPPER(c) (ISASCII (c) && isupper (c)) |
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320 #define ISXDIGIT(c) (ISASCII (c) && isxdigit (c)) |
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321 |
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322 #define ISWORD(c) ISALPHA(c) |
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323 |
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324 #endif /* not emacs */ |
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325 |
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326 #ifndef NULL |
| 447 | 327 #define NULL (void *)0 |
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328 #endif |
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329 |
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330 /* We remove any previous definition of `SIGN_EXTEND_CHAR', |
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331 since ours (we hope) works properly with all combinations of |
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332 machines, compilers, `char' and `unsigned char' argument types. |
| 941 | 333 (Per Bothner suggested the basic approach.) */ |
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334 #undef SIGN_EXTEND_CHAR |
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335 #if __STDC__ |
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336 #define SIGN_EXTEND_CHAR(c) ((signed char) (c)) |
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337 #else /* not __STDC__ */ |
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338 /* As in Harbison and Steele. */ |
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339 #define SIGN_EXTEND_CHAR(c) ((((unsigned char) (c)) ^ 128) - 128) |
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340 #endif |
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341 |
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342 /* Should we use malloc or alloca? If REGEX_MALLOC is not defined, we |
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343 use `alloca' instead of `malloc'. This is because using malloc in |
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344 re_search* or re_match* could cause memory leaks when C-g is used in |
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345 Emacs; also, malloc is slower and causes storage fragmentation. On |
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346 the other hand, malloc is more portable, and easier to debug. |
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347 |
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348 Because we sometimes use alloca, some routines have to be macros, |
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349 not functions -- `alloca'-allocated space disappears at the end of the |
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350 function it is called in. */ |
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351 |
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352 #ifdef REGEX_MALLOC |
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353 |
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354 #define REGEX_ALLOCATE malloc |
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355 #define REGEX_REALLOCATE(source, osize, nsize) realloc (source, nsize) |
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356 #define REGEX_FREE free |
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357 |
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358 #else /* not REGEX_MALLOC */ |
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359 |
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360 /* Emacs already defines alloca, sometimes. */ |
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361 #ifndef alloca |
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362 |
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363 /* Make alloca work the best possible way. */ |
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364 #ifdef __GNUC__ |
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365 #define alloca __builtin_alloca |
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366 #else /* not __GNUC__ */ |
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367 #if HAVE_ALLOCA_H |
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368 #include <alloca.h> |
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369 #else /* not __GNUC__ or HAVE_ALLOCA_H */ |
| 503 | 370 #if 0 /* It is a bad idea to declare alloca. We always cast the result. */ |
| 941 | 371 #ifndef _AIX /* Already did AIX, up at the top. */ |
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372 char *alloca (); |
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373 #endif /* not _AIX */ |
| 503 | 374 #endif |
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375 #endif /* not HAVE_ALLOCA_H */ |
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376 #endif /* not __GNUC__ */ |
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377 |
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378 #endif /* not alloca */ |
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379 |
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380 #define REGEX_ALLOCATE alloca |
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381 |
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382 /* Assumes a `char *destination' variable. */ |
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383 #define REGEX_REALLOCATE(source, osize, nsize) \ |
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384 (destination = (char *) alloca (nsize), \ |
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385 bcopy (source, destination, osize), \ |
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386 destination) |
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387 |
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388 /* No need to do anything to free, after alloca. */ |
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442
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389 #define REGEX_FREE(arg) ((void)0) /* Do nothing! But inhibit gcc warning. */ |
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390 |
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391 #endif /* not REGEX_MALLOC */ |
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392 |
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393 /* Define how to allocate the failure stack. */ |
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394 |
| 463 | 395 #if defined (REL_ALLOC) && defined (REGEX_MALLOC) |
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396 |
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397 #define REGEX_ALLOCATE_STACK(size) \ |
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398 r_alloc (&failure_stack_ptr, (size)) |
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399 #define REGEX_REALLOCATE_STACK(source, osize, nsize) \ |
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400 r_re_alloc (&failure_stack_ptr, (nsize)) |
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401 #define REGEX_FREE_STACK(ptr) \ |
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402 r_alloc_free (&failure_stack_ptr) |
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403 |
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404 #else /* not using relocating allocator */ |
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405 |
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406 #ifdef REGEX_MALLOC |
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407 |
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408 #define REGEX_ALLOCATE_STACK malloc |
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409 #define REGEX_REALLOCATE_STACK(source, osize, nsize) realloc (source, nsize) |
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410 #define REGEX_FREE_STACK free |
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411 |
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412 #else /* not REGEX_MALLOC */ |
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413 |
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414 #define REGEX_ALLOCATE_STACK alloca |
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415 |
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416 #define REGEX_REALLOCATE_STACK(source, osize, nsize) \ |
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417 REGEX_REALLOCATE (source, osize, nsize) |
| 941 | 418 /* No need to explicitly free anything. */ |
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419 #define REGEX_FREE_STACK(arg) |
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420 |
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421 #endif /* not REGEX_MALLOC */ |
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422 #endif /* not using relocating allocator */ |
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423 |
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424 |
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425 /* True if `size1' is non-NULL and PTR is pointing anywhere inside |
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426 `string1' or just past its end. This works if PTR is NULL, which is |
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427 a good thing. */ |
| 941 | 428 #define FIRST_STRING_P(ptr) \ |
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429 (size1 && string1 <= (ptr) && (ptr) <= string1 + size1) |
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430 |
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431 /* (Re)Allocate N items of type T using malloc, or fail. */ |
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432 #define TALLOC(n, t) ((t *) malloc ((n) * sizeof (t))) |
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433 #define RETALLOC(addr, n, t) ((addr) = (t *) realloc (addr, (n) * sizeof (t))) |
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434 #define RETALLOC_IF(addr, n, t) \ |
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435 if (addr) RETALLOC((addr), (n), t); else (addr) = TALLOC ((n), t) |
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436 #define REGEX_TALLOC(n, t) ((t *) REGEX_ALLOCATE ((n) * sizeof (t))) |
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437 |
| 941 | 438 #define BYTEWIDTH 8 /* In bits. */ |
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439 |
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440 #define STREQ(s1, s2) ((strcmp (s1, s2) == 0)) |
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441 |
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442 #undef MAX |
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443 #undef MIN |
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444 #define MAX(a, b) ((a) > (b) ? (a) : (b)) |
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445 #define MIN(a, b) ((a) < (b) ? (a) : (b)) |
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446 |
|
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447 /* Type of source-pattern and string chars. */ |
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448 typedef const unsigned char re_char; |
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449 |
|
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450 typedef char boolean; |
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451 #define false 0 |
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452 #define true 1 |
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453 |
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454 static int re_match_2_internal (); |
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455 |
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456 /* These are the command codes that appear in compiled regular |
| 941 | 457 expressions. Some opcodes are followed by argument bytes. A |
|
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458 command code can specify any interpretation whatsoever for its |
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459 arguments. Zero bytes may appear in the compiled regular expression. */ |
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460 |
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461 typedef enum |
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462 { |
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463 no_op = 0, |
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464 |
| 941 | 465 /* Succeed right away--no more backtracking. */ |
|
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466 succeed, |
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467 |
| 941 | 468 /* Followed by one byte giving n, then by n literal bytes. */ |
|
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469 exactn, |
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470 |
| 941 | 471 /* Matches any (more or less) character. */ |
|
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472 anychar, |
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473 |
| 941 | 474 /* Matches any one char belonging to specified set. First |
| 475 following byte is number of bitmap bytes. Then come bytes | |
| 476 for a bitmap saying which chars are in. Bits in each byte | |
| 477 are ordered low-bit-first. A character is in the set if its | |
| 478 bit is 1. A character too large to have a bit in the map is | |
|
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479 automatically not in the set. |
|
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480 |
|
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481 If the length byte has the 0x80 bit set, then that stuff |
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482 is followed by a range table: |
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483 2 bytes of flags for character sets (low 8 bits, high 8 bits) |
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484 See RANGE_TABLE_WORK_BITS below. |
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485 2 bytes, the number of pairs that follow |
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486 pairs, each 2 multibyte characters, |
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487 each multibyte character represented as 3 bytes. */ |
|
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488 charset, |
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489 |
| 941 | 490 /* Same parameters as charset, but match any character that is |
| 491 not one of those specified. */ | |
|
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492 charset_not, |
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493 |
| 941 | 494 /* Start remembering the text that is matched, for storing in a |
| 495 register. Followed by one byte with the register number, in | |
| 496 the range 0 to one less than the pattern buffer's re_nsub | |
|
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497 field. */ |
|
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498 start_memory, |
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499 |
| 941 | 500 /* Stop remembering the text that is matched and store it in a |
| 501 memory register. Followed by one byte with the register | |
| 502 number, in the range 0 to one less than `re_nsub' in the | |
|
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503 pattern buffer. */ |
|
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504 stop_memory, |
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505 |
| 941 | 506 /* Match a duplicate of something remembered. Followed by one |
| 507 byte containing the register number. */ | |
|
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508 duplicate, |
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509 |
| 941 | 510 /* Fail unless at beginning of line. */ |
|
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511 begline, |
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512 |
| 941 | 513 /* Fail unless at end of line. */ |
|
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514 endline, |
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515 |
| 941 | 516 /* Succeeds if at beginning of buffer (if emacs) or at beginning |
| 517 of string to be matched (if not). */ | |
|
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518 begbuf, |
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519 |
| 941 | 520 /* Analogously, for end of buffer/string. */ |
|
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521 endbuf, |
|
515
69ba3b63e1d1
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522 |
| 941 | 523 /* Followed by two byte relative address to which to jump. */ |
|
515
69ba3b63e1d1
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524 jump, |
|
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525 |
| 941 | 526 /* Followed by two-byte relative address of place to resume at |
| 527 in case of failure. */ | |
|
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528 on_failure_jump, |
|
515
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529 |
| 941 | 530 /* Like on_failure_jump, but pushes a placeholder instead of the |
| 531 current string position when executed. */ | |
|
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532 on_failure_keep_string_jump, |
|
515
69ba3b63e1d1
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|
533 |
|
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534 /* Just like `on_failure_jump', except that it checks that we |
|
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535 don't get stuck in an infinite loop (matching an empty string |
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536 indefinitely). */ |
|
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537 on_failure_jump_loop, |
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538 |
|
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539 /* A smart `on_failure_jump' used for greedy * and + operators. |
|
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|
540 It analyses the loop before which it is put and if the |
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|
541 loop does not require backtracking, it changes itself to |
|
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542 `on_failure_keep_string_jump' and short-circuits the loop, |
|
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543 else it just defaults to changing itself into `on_failure_jump'. |
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544 It assumes that it is pointing to just past a `jump'. */ |
|
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545 on_failure_jump_smart, |
|
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546 |
| 941 | 547 /* Followed by two-byte relative address and two-byte number n. |
| 548 After matching N times, jump to the address upon failure. */ | |
|
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549 succeed_n, |
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550 |
| 941 | 551 /* Followed by two-byte relative address, and two-byte number n. |
| 552 Jump to the address N times, then fail. */ | |
|
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553 jump_n, |
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554 |
| 941 | 555 /* Set the following two-byte relative address to the |
| 556 subsequent two-byte number. The address *includes* the two | |
| 557 bytes of number. */ | |
|
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558 set_number_at, |
|
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559 |
|
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560 wordbeg, /* Succeeds if at word beginning. */ |
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561 wordend, /* Succeeds if at word end. */ |
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562 |
|
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563 wordbound, /* Succeeds if at a word boundary. */ |
|
2356
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changeset
|
564 notwordbound, /* Succeeds if not at a word boundary. */ |
|
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|
565 |
|
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566 /* Matches any character whose syntax is specified. Followed by |
| 941 | 567 a byte which contains a syntax code, e.g., Sword. */ |
|
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|
568 syntaxspec, |
|
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569 |
|
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570 /* Matches any character whose syntax is not that specified. */ |
|
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|
571 notsyntaxspec |
|
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572 |
|
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|
573 #ifdef emacs |
|
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|
574 ,before_dot, /* Succeeds if before point. */ |
|
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575 at_dot, /* Succeeds if at point. */ |
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576 after_dot, /* Succeeds if after point. */ |
| 939 | 577 |
| 578 /* Matches any character whose category-set contains the specified | |
| 941 | 579 category. The operator is followed by a byte which contains a |
| 580 category code (mnemonic ASCII character). */ | |
| 939 | 581 categoryspec, |
| 582 | |
| 583 /* Matches any character whose category-set does not contain the | |
| 584 specified category. The operator is followed by a byte which | |
| 585 contains the category code (mnemonic ASCII character). */ | |
| 586 notcategoryspec | |
|
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587 #endif /* emacs */ |
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588 } re_opcode_t; |
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589 |
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590 /* Common operations on the compiled pattern. */ |
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591 |
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592 /* Store NUMBER in two contiguous bytes starting at DESTINATION. */ |
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593 |
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594 #define STORE_NUMBER(destination, number) \ |
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595 do { \ |
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596 (destination)[0] = (number) & 0377; \ |
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597 (destination)[1] = (number) >> 8; \ |
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598 } while (0) |
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599 |
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600 /* Same as STORE_NUMBER, except increment DESTINATION to |
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601 the byte after where the number is stored. Therefore, DESTINATION |
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602 must be an lvalue. */ |
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603 |
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604 #define STORE_NUMBER_AND_INCR(destination, number) \ |
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605 do { \ |
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606 STORE_NUMBER (destination, number); \ |
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607 (destination) += 2; \ |
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608 } while (0) |
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609 |
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610 /* Put into DESTINATION a number stored in two contiguous bytes starting |
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611 at SOURCE. */ |
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612 |
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613 #define EXTRACT_NUMBER(destination, source) \ |
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614 do { \ |
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615 (destination) = *(source) & 0377; \ |
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616 (destination) += SIGN_EXTEND_CHAR (*((source) + 1)) << 8; \ |
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617 } while (0) |
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618 |
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619 #ifdef DEBUG |
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620 static void |
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621 extract_number (dest, source) |
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622 int *dest; |
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623 unsigned char *source; |
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624 { |
|
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625 int temp = SIGN_EXTEND_CHAR (*(source + 1)); |
|
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626 *dest = *source & 0377; |
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627 *dest += temp << 8; |
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628 } |
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629 |
| 941 | 630 #ifndef EXTRACT_MACROS /* To debug the macros. */ |
|
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631 #undef EXTRACT_NUMBER |
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632 #define EXTRACT_NUMBER(dest, src) extract_number (&dest, src) |
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633 #endif /* not EXTRACT_MACROS */ |
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634 |
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635 #endif /* DEBUG */ |
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636 |
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637 /* Same as EXTRACT_NUMBER, except increment SOURCE to after the number. |
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638 SOURCE must be an lvalue. */ |
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639 |
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640 #define EXTRACT_NUMBER_AND_INCR(destination, source) \ |
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641 do { \ |
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642 EXTRACT_NUMBER (destination, source); \ |
| 941 | 643 (source) += 2; \ |
|
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644 } while (0) |
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645 |
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646 #ifdef DEBUG |
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647 static void |
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648 extract_number_and_incr (destination, source) |
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649 int *destination; |
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650 unsigned char **source; |
|
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651 { |
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652 extract_number (destination, *source); |
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653 *source += 2; |
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654 } |
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655 |
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656 #ifndef EXTRACT_MACROS |
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657 #undef EXTRACT_NUMBER_AND_INCR |
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658 #define EXTRACT_NUMBER_AND_INCR(dest, src) \ |
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659 extract_number_and_incr (&dest, &src) |
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660 #endif /* not EXTRACT_MACROS */ |
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661 |
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662 #endif /* DEBUG */ |
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663 |
| 939 | 664 /* Store a multibyte character in three contiguous bytes starting |
| 665 DESTINATION, and increment DESTINATION to the byte after where the | |
| 941 | 666 character is stored. Therefore, DESTINATION must be an lvalue. */ |
| 939 | 667 |
| 668 #define STORE_CHARACTER_AND_INCR(destination, character) \ | |
| 669 do { \ | |
| 670 (destination)[0] = (character) & 0377; \ | |
| 671 (destination)[1] = ((character) >> 8) & 0377; \ | |
| 672 (destination)[2] = (character) >> 16; \ | |
| 673 (destination) += 3; \ | |
| 674 } while (0) | |
| 675 | |
| 676 /* Put into DESTINATION a character stored in three contiguous bytes | |
| 941 | 677 starting at SOURCE. */ |
| 939 | 678 |
| 679 #define EXTRACT_CHARACTER(destination, source) \ | |
| 680 do { \ | |
| 681 (destination) = ((source)[0] \ | |
| 682 | ((source)[1] << 8) \ | |
| 683 | ((source)[2] << 16)); \ | |
| 684 } while (0) | |
| 685 | |
| 686 | |
| 687 /* Macros for charset. */ | |
| 688 | |
| 689 /* Size of bitmap of charset P in bytes. P is a start of charset, | |
| 690 i.e. *P is (re_opcode_t) charset or (re_opcode_t) charset_not. */ | |
| 691 #define CHARSET_BITMAP_SIZE(p) ((p)[1] & 0x7F) | |
| 692 | |
| 693 /* Nonzero if charset P has range table. */ | |
| 941 | 694 #define CHARSET_RANGE_TABLE_EXISTS_P(p) ((p)[1] & 0x80) |
| 939 | 695 |
| 696 /* Return the address of range table of charset P. But not the start | |
| 697 of table itself, but the before where the number of ranges is | |
|
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698 stored. `2 +' means to skip re_opcode_t and size of bitmap, |
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699 and the 2 bytes of flags at the start of the range table. */ |
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700 #define CHARSET_RANGE_TABLE(p) (&(p)[4 + CHARSET_BITMAP_SIZE (p)]) |
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701 |
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702 /* Extract the bit flags that start a range table. */ |
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703 #define CHARSET_RANGE_TABLE_BITS(p) \ |
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704 ((p)[2 + CHARSET_BITMAP_SIZE (p)] \ |
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705 + (p)[3 + CHARSET_BITMAP_SIZE (p)] * 0x100) |
| 939 | 706 |
| 707 /* Test if C is listed in the bitmap of charset P. */ | |
| 708 #define CHARSET_LOOKUP_BITMAP(p, c) \ | |
| 709 ((c) < CHARSET_BITMAP_SIZE (p) * BYTEWIDTH \ | |
| 710 && (p)[2 + (c) / BYTEWIDTH] & (1 << ((c) % BYTEWIDTH))) | |
| 711 | |
| 712 /* Return the address of end of RANGE_TABLE. COUNT is number of | |
| 941 | 713 ranges (which is a pair of (start, end)) in the RANGE_TABLE. `* 2' |
| 714 is start of range and end of range. `* 3' is size of each start | |
| 939 | 715 and end. */ |
| 716 #define CHARSET_RANGE_TABLE_END(range_table, count) \ | |
| 717 ((range_table) + (count) * 2 * 3) | |
| 718 | |
| 941 | 719 /* Test if C is in RANGE_TABLE. A flag NOT is negated if C is in. |
| 939 | 720 COUNT is number of ranges in RANGE_TABLE. */ |
| 721 #define CHARSET_LOOKUP_RANGE_TABLE_RAW(not, c, range_table, count) \ | |
| 722 do \ | |
| 723 { \ | |
| 724 int range_start, range_end; \ | |
| 725 unsigned char *p; \ | |
| 726 unsigned char *range_table_end \ | |
| 727 = CHARSET_RANGE_TABLE_END ((range_table), (count)); \ | |
| 728 \ | |
| 729 for (p = (range_table); p < range_table_end; p += 2 * 3) \ | |
| 730 { \ | |
| 731 EXTRACT_CHARACTER (range_start, p); \ | |
| 732 EXTRACT_CHARACTER (range_end, p + 3); \ | |
| 733 \ | |
| 734 if (range_start <= (c) && (c) <= range_end) \ | |
| 735 { \ | |
| 736 (not) = !(not); \ | |
| 737 break; \ | |
| 738 } \ | |
| 739 } \ | |
| 740 } \ | |
| 741 while (0) | |
| 742 | |
| 743 /* Test if C is in range table of CHARSET. The flag NOT is negated if | |
| 744 C is listed in it. */ | |
| 745 #define CHARSET_LOOKUP_RANGE_TABLE(not, c, charset) \ | |
| 746 do \ | |
| 747 { \ | |
| 748 /* Number of ranges in range table. */ \ | |
| 749 int count; \ | |
| 750 unsigned char *range_table = CHARSET_RANGE_TABLE (charset); \ | |
| 751 \ | |
| 752 EXTRACT_NUMBER_AND_INCR (count, range_table); \ | |
| 753 CHARSET_LOOKUP_RANGE_TABLE_RAW ((not), (c), range_table, count); \ | |
| 754 } \ | |
| 755 while (0) | |
| 756 | |
|
441
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Roland McGrath <roland@gnu.org>
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diff
changeset
|
757 /* If DEBUG is defined, Regex prints many voluminous messages about what |
|
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Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
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diff
changeset
|
758 it is doing (if the variable `debug' is nonzero). If linked with the |
|
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Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
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diff
changeset
|
759 main program in `iregex.c', you can enter patterns and strings |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
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diff
changeset
|
760 interactively. And if linked with the main program in `main.c' and |
| 941 | 761 the other test files, you can run the already-written tests. */ |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
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diff
changeset
|
762 |
|
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Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
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parents:
438
diff
changeset
|
763 #ifdef DEBUG |
|
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Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
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parents:
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diff
changeset
|
764 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
765 /* We use standard I/O for debugging. */ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
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parents:
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diff
changeset
|
766 #include <stdio.h> |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
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parents:
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diff
changeset
|
767 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
768 /* It is useful to test things that ``must'' be true when debugging. */ |
|
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Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
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parents:
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diff
changeset
|
769 #include <assert.h> |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
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parents:
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diff
changeset
|
770 |
|
2350
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2349
diff
changeset
|
771 static int debug = -100000; |
|
441
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Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
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parents:
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diff
changeset
|
772 |
|
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Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
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diff
changeset
|
773 #define DEBUG_STATEMENT(e) e |
|
2350
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2349
diff
changeset
|
774 #define DEBUG_PRINT1(x) if (debug > 0) printf (x) |
|
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
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diff
changeset
|
775 #define DEBUG_PRINT2(x1, x2) if (debug > 0) printf (x1, x2) |
|
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
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diff
changeset
|
776 #define DEBUG_PRINT3(x1, x2, x3) if (debug > 0) printf (x1, x2, x3) |
|
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
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parents:
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diff
changeset
|
777 #define DEBUG_PRINT4(x1, x2, x3, x4) if (debug > 0) printf (x1, x2, x3, x4) |
| 941 | 778 #define DEBUG_PRINT_COMPILED_PATTERN(p, s, e) \ |
|
2350
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2349
diff
changeset
|
779 if (debug > 0) print_partial_compiled_pattern (s, e) |
|
441
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Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
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diff
changeset
|
780 #define DEBUG_PRINT_DOUBLE_STRING(w, s1, sz1, s2, sz2) \ |
|
2350
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
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diff
changeset
|
781 if (debug > 0) print_double_string (w, s1, sz1, s2, sz2) |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
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diff
changeset
|
782 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
783 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
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parents:
438
diff
changeset
|
784 /* Print the fastmap in human-readable form. */ |
|
403b2dfdfa0b
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Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
785 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
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diff
changeset
|
786 void |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
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parents:
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diff
changeset
|
787 print_fastmap (fastmap) |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
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diff
changeset
|
788 char *fastmap; |
|
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Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
789 { |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
790 unsigned was_a_range = 0; |
|
515
69ba3b63e1d1
(gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents:
511
diff
changeset
|
791 unsigned i = 0; |
|
69ba3b63e1d1
(gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents:
511
diff
changeset
|
792 |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
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diff
changeset
|
793 while (i < (1 << BYTEWIDTH)) |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
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parents:
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diff
changeset
|
794 { |
|
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Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
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diff
changeset
|
795 if (fastmap[i++]) |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
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changeset
|
796 { |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
797 was_a_range = 0; |
| 941 | 798 putchar (i - 1); |
| 799 while (i < (1 << BYTEWIDTH) && fastmap[i]) | |
| 800 { | |
| 801 was_a_range = 1; | |
| 802 i++; | |
| 803 } | |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
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diff
changeset
|
804 if (was_a_range) |
| 941 | 805 { |
| 806 printf ("-"); | |
| 807 putchar (i - 1); | |
| 808 } | |
| 809 } | |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
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parents:
438
diff
changeset
|
810 } |
|
515
69ba3b63e1d1
(gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents:
511
diff
changeset
|
811 putchar ('\n'); |
|
441
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Roland McGrath <roland@gnu.org>
parents:
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diff
changeset
|
812 } |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
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diff
changeset
|
813 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
814 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
815 /* Print a compiled pattern string in human-readable form, starting at |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
816 the START pointer into it and ending just before the pointer END. */ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
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parents:
438
diff
changeset
|
817 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
818 void |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
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438
diff
changeset
|
819 print_partial_compiled_pattern (start, end) |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
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diff
changeset
|
820 unsigned char *start; |
|
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Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
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diff
changeset
|
821 unsigned char *end; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
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diff
changeset
|
822 { |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
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diff
changeset
|
823 int mcnt, mcnt2; |
|
403b2dfdfa0b
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parents:
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diff
changeset
|
824 unsigned char *p = start; |
|
403b2dfdfa0b
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diff
changeset
|
825 unsigned char *pend = end; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
826 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
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diff
changeset
|
827 if (start == NULL) |
|
403b2dfdfa0b
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Roland McGrath <roland@gnu.org>
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438
diff
changeset
|
828 { |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
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diff
changeset
|
829 printf ("(null)\n"); |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
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parents:
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diff
changeset
|
830 return; |
|
403b2dfdfa0b
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Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
831 } |
|
515
69ba3b63e1d1
(gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents:
511
diff
changeset
|
832 |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
833 /* Loop over pattern commands. */ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
834 while (p < pend) |
|
403b2dfdfa0b
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Roland McGrath <roland@gnu.org>
parents:
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diff
changeset
|
835 { |
|
403b2dfdfa0b
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Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
836 printf ("%d:\t", p - start); |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
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parents:
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diff
changeset
|
837 |
|
403b2dfdfa0b
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Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
838 switch ((re_opcode_t) *p++) |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
839 { |
| 941 | 840 case no_op: |
| 841 printf ("/no_op"); | |
| 842 break; | |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
843 |
|
2350
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2349
diff
changeset
|
844 case succeed: |
|
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2349
diff
changeset
|
845 printf ("/succeed"); |
|
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2349
diff
changeset
|
846 break; |
|
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2349
diff
changeset
|
847 |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
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parents:
438
diff
changeset
|
848 case exactn: |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
849 mcnt = *p++; |
| 941 | 850 printf ("/exactn/%d", mcnt); |
| 851 do | |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
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438
diff
changeset
|
852 { |
| 941 | 853 putchar ('/'); |
|
441
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parents:
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diff
changeset
|
854 putchar (*p++); |
| 941 | 855 } |
| 856 while (--mcnt); | |
| 857 break; | |
|
441
403b2dfdfa0b
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Roland McGrath <roland@gnu.org>
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diff
changeset
|
858 |
|
403b2dfdfa0b
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438
diff
changeset
|
859 case start_memory: |
|
2345
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
860 printf ("/start_memory/%d", *p++); |
| 941 | 861 break; |
|
441
403b2dfdfa0b
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438
diff
changeset
|
862 |
|
403b2dfdfa0b
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Roland McGrath <roland@gnu.org>
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438
diff
changeset
|
863 case stop_memory: |
|
2345
93d6633849d6
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Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
864 printf ("/stop_memory/%d", *p++); |
| 941 | 865 break; |
|
441
403b2dfdfa0b
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parents:
438
diff
changeset
|
866 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
867 case duplicate: |
|
403b2dfdfa0b
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438
diff
changeset
|
868 printf ("/duplicate/%d", *p++); |
|
403b2dfdfa0b
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parents:
438
diff
changeset
|
869 break; |
|
403b2dfdfa0b
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parents:
438
diff
changeset
|
870 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
871 case anychar: |
|
403b2dfdfa0b
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parents:
438
diff
changeset
|
872 printf ("/anychar"); |
|
403b2dfdfa0b
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parents:
438
diff
changeset
|
873 break; |
|
403b2dfdfa0b
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Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
874 |
|
403b2dfdfa0b
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Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
875 case charset: |
| 941 | 876 case charset_not: |
| 877 { | |
| 878 register int c, last = -100; | |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
879 register int in_range = 0; |
|
2350
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2349
diff
changeset
|
880 int length = CHARSET_BITMAP_SIZE (p - 1); |
|
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2349
diff
changeset
|
881 int has_range_table = CHARSET_RANGE_TABLE_EXISTS_P (p - 1); |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
882 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
883 printf ("/charset [%s", |
| 941 | 884 (re_opcode_t) *(p - 1) == charset_not ? "^" : ""); |
| 885 | |
| 886 assert (p + *p < pend); | |
| 887 | |
| 888 for (c = 0; c < 256; c++) | |
|
1933
5ffa81ab1988
[emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents:
1660
diff
changeset
|
889 if (c / 8 < length |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
890 && (p[1 + (c/8)] & (1 << (c % 8)))) |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
891 { |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
892 /* Are we starting a range? */ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
893 if (last + 1 == c && ! in_range) |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
894 { |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
895 putchar ('-'); |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
896 in_range = 1; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
897 } |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
898 /* Have we broken a range? */ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
899 else if (last + 1 != c && in_range) |
|
1933
5ffa81ab1988
[emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents:
1660
diff
changeset
|
900 { |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
901 putchar (last); |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
902 in_range = 0; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
903 } |
|
515
69ba3b63e1d1
(gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents:
511
diff
changeset
|
904 |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
905 if (! in_range) |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
906 putchar (c); |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
907 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
908 last = c; |
| 941 | 909 } |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
910 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
911 if (in_range) |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
912 putchar (last); |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
913 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
914 putchar (']'); |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
915 |
|
2350
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2349
diff
changeset
|
916 p += 1 + length; |
|
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2349
diff
changeset
|
917 |
|
1933
5ffa81ab1988
[emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents:
1660
diff
changeset
|
918 if (has_range_table) |
|
2350
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2349
diff
changeset
|
919 { |
|
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2349
diff
changeset
|
920 int count; |
|
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2349
diff
changeset
|
921 printf ("has-range-table"); |
|
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2349
diff
changeset
|
922 |
|
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2349
diff
changeset
|
923 /* ??? Should print the range table; for now, just skip it. */ |
|
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2349
diff
changeset
|
924 p += 2; /* skip range table bits */ |
|
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2349
diff
changeset
|
925 EXTRACT_NUMBER_AND_INCR (count, p); |
|
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2349
diff
changeset
|
926 p = CHARSET_RANGE_TABLE_END (p, count); |
|
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2349
diff
changeset
|
927 } |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
928 } |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
929 break; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
930 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
931 case begline: |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
932 printf ("/begline"); |
| 941 | 933 break; |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
934 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
935 case endline: |
| 941 | 936 printf ("/endline"); |
| 937 break; | |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
938 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
939 case on_failure_jump: |
| 941 | 940 extract_number_and_incr (&mcnt, &p); |
| 941 printf ("/on_failure_jump to %d", p + mcnt - start); | |
| 942 break; | |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
943 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
944 case on_failure_keep_string_jump: |
| 941 | 945 extract_number_and_incr (&mcnt, &p); |
| 946 printf ("/on_failure_keep_string_jump to %d", p + mcnt - start); | |
| 947 break; | |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
948 |
|
2345
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
949 case on_failure_jump_loop: |
| 941 | 950 extract_number_and_incr (&mcnt, &p); |
|
2345
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
951 printf ("/on_failure_jump_loop to %d", p + mcnt - start); |
| 941 | 952 break; |
| 953 | |
|
2345
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
954 case on_failure_jump_smart: |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
955 extract_number_and_incr (&mcnt, &p); |
|
2345
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
956 printf ("/on_failure_jump_smart to %d", p + mcnt - start); |
|
515
69ba3b63e1d1
(gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents:
511
diff
changeset
|
957 break; |
|
69ba3b63e1d1
(gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents:
511
diff
changeset
|
958 |
| 941 | 959 case jump: |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
960 extract_number_and_incr (&mcnt, &p); |
| 941 | 961 printf ("/jump to %d", p + mcnt - start); |
| 679 | 962 break; |
| 963 | |
| 941 | 964 case succeed_n: |
| 965 extract_number_and_incr (&mcnt, &p); | |
| 966 extract_number_and_incr (&mcnt2, &p); | |
|
2350
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2349
diff
changeset
|
967 printf ("/succeed_n to %d, %d times", p - 2 + mcnt - start, mcnt2); |
| 941 | 968 break; |
| 969 | |
| 970 case jump_n: | |
| 971 extract_number_and_incr (&mcnt, &p); | |
| 972 extract_number_and_incr (&mcnt2, &p); | |
|
2350
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2349
diff
changeset
|
973 printf ("/jump_n to %d, %d times", p - 2 + mcnt - start, mcnt2); |
| 941 | 974 break; |
| 975 | |
| 976 case set_number_at: | |
| 977 extract_number_and_incr (&mcnt, &p); | |
| 978 extract_number_and_incr (&mcnt2, &p); | |
|
2350
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2349
diff
changeset
|
979 printf ("/set_number_at location %d to %d", p - 2 + mcnt - start, mcnt2); |
| 941 | 980 break; |
| 981 | |
| 982 case wordbound: | |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
983 printf ("/wordbound"); |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
984 break; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
985 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
986 case notwordbound: |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
987 printf ("/notwordbound"); |
| 941 | 988 break; |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
989 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
990 case wordbeg: |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
991 printf ("/wordbeg"); |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
992 break; |
|
515
69ba3b63e1d1
(gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents:
511
diff
changeset
|
993 |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
994 case wordend: |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
995 printf ("/wordend"); |
|
515
69ba3b63e1d1
(gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents:
511
diff
changeset
|
996 |
|
2356
d93889e88226
(CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2355
diff
changeset
|
997 case syntaxspec: |
|
d93889e88226
(CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2355
diff
changeset
|
998 printf ("/syntaxspec"); |
|
d93889e88226
(CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2355
diff
changeset
|
999 mcnt = *p++; |
|
d93889e88226
(CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2355
diff
changeset
|
1000 printf ("/%d", mcnt); |
|
d93889e88226
(CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2355
diff
changeset
|
1001 break; |
|
d93889e88226
(CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2355
diff
changeset
|
1002 |
|
d93889e88226
(CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2355
diff
changeset
|
1003 case notsyntaxspec: |
|
d93889e88226
(CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2355
diff
changeset
|
1004 printf ("/notsyntaxspec"); |
|
d93889e88226
(CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2355
diff
changeset
|
1005 mcnt = *p++; |
|
d93889e88226
(CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2355
diff
changeset
|
1006 printf ("/%d", mcnt); |
|
d93889e88226
(CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2355
diff
changeset
|
1007 break; |
|
d93889e88226
(CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2355
diff
changeset
|
1008 |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1009 #ifdef emacs |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1010 case before_dot: |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1011 printf ("/before_dot"); |
| 941 | 1012 break; |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1013 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1014 case at_dot: |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1015 printf ("/at_dot"); |
| 941 | 1016 break; |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1017 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1018 case after_dot: |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1019 printf ("/after_dot"); |
| 941 | 1020 break; |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1021 |
|
2356
d93889e88226
(CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2355
diff
changeset
|
1022 case categoryspec: |
|
d93889e88226
(CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2355
diff
changeset
|
1023 printf ("/categoryspec"); |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1024 mcnt = *p++; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1025 printf ("/%d", mcnt); |
| 941 | 1026 break; |
|
515
69ba3b63e1d1
(gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents:
511
diff
changeset
|
1027 |
|
2356
d93889e88226
(CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2355
diff
changeset
|
1028 case notcategoryspec: |
|
d93889e88226
(CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2355
diff
changeset
|
1029 printf ("/notcategoryspec"); |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1030 mcnt = *p++; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1031 printf ("/%d", mcnt); |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1032 break; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1033 #endif /* emacs */ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1034 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1035 case begbuf: |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1036 printf ("/begbuf"); |
| 941 | 1037 break; |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1038 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1039 case endbuf: |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1040 printf ("/endbuf"); |
| 941 | 1041 break; |
| 1042 | |
| 1043 default: | |
| 1044 printf ("?%d", *(p-1)); | |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1045 } |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1046 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1047 putchar ('\n'); |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1048 } |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1049 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1050 printf ("%d:\tend of pattern.\n", p - start); |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1051 } |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1052 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1053 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1054 void |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1055 print_compiled_pattern (bufp) |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1056 struct re_pattern_buffer *bufp; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1057 { |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1058 unsigned char *buffer = bufp->buffer; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1059 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1060 print_partial_compiled_pattern (buffer, buffer + bufp->used); |
|
2345
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
1061 printf ("%ld bytes used/%ld bytes allocated.\n", bufp->used, bufp->allocated); |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1062 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1063 if (bufp->fastmap_accurate && bufp->fastmap) |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1064 { |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1065 printf ("fastmap: "); |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1066 print_fastmap (bufp->fastmap); |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1067 } |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1068 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1069 printf ("re_nsub: %d\t", bufp->re_nsub); |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1070 printf ("regs_alloc: %d\t", bufp->regs_allocated); |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1071 printf ("can_be_null: %d\t", bufp->can_be_null); |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1072 printf ("newline_anchor: %d\n", bufp->newline_anchor); |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1073 printf ("no_sub: %d\t", bufp->no_sub); |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1074 printf ("not_bol: %d\t", bufp->not_bol); |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1075 printf ("not_eol: %d\t", bufp->not_eol); |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1076 printf ("syntax: %d\n", bufp->syntax); |
|
2345
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
1077 fflush (stdout); |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1078 /* Perhaps we should print the translate table? */ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1079 } |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1080 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1081 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1082 void |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1083 print_double_string (where, string1, size1, string2, size2) |
|
2349
5fa185a9956e
* regex.c: Declare a new type `re_char' used throughout the code for the
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2345
diff
changeset
|
1084 re_char *where; |
|
5fa185a9956e
* regex.c: Declare a new type `re_char' used throughout the code for the
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2345
diff
changeset
|
1085 re_char *string1; |
|
5fa185a9956e
* regex.c: Declare a new type `re_char' used throughout the code for the
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2345
diff
changeset
|
1086 re_char *string2; |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1087 int size1; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1088 int size2; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1089 { |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1090 unsigned this_char; |
|
515
69ba3b63e1d1
(gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents:
511
diff
changeset
|
1091 |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1092 if (where == NULL) |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1093 printf ("(null)"); |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1094 else |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1095 { |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1096 if (FIRST_STRING_P (where)) |
| 941 | 1097 { |
| 1098 for (this_char = where - string1; this_char < size1; this_char++) | |
| 1099 putchar (string1[this_char]); | |
| 1100 | |
| 1101 where = string2; | |
| 1102 } | |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1103 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1104 for (this_char = where - string2; this_char < size2; this_char++) |
| 941 | 1105 putchar (string2[this_char]); |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1106 } |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1107 } |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1108 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1109 #else /* not DEBUG */ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1110 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1111 #undef assert |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1112 #define assert(e) |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1113 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1114 #define DEBUG_STATEMENT(e) |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1115 #define DEBUG_PRINT1(x) |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1116 #define DEBUG_PRINT2(x1, x2) |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1117 #define DEBUG_PRINT3(x1, x2, x3) |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1118 #define DEBUG_PRINT4(x1, x2, x3, x4) |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1119 #define DEBUG_PRINT_COMPILED_PATTERN(p, s, e) |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1120 #define DEBUG_PRINT_DOUBLE_STRING(w, s1, sz1, s2, sz2) |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1121 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1122 #endif /* not DEBUG */ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1123 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1124 /* Set by `re_set_syntax' to the current regexp syntax to recognize. Can |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1125 also be assigned to arbitrarily: each pattern buffer stores its own |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1126 syntax, so it can be changed between regex compilations. */ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1127 /* This has no initializer because initialized variables in Emacs |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1128 become read-only after dumping. */ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1129 reg_syntax_t re_syntax_options; |
|
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1130 |
|
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1131 |
|
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|
1132 /* Specify the precise syntax of regexps for compilation. This provides |
|
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|
1133 for compatibility for various utilities which historically have |
|
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|
1134 different, incompatible syntaxes. |
|
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Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
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|
1135 |
|
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|
1136 The argument SYNTAX is a bit mask comprised of the various bits |
| 941 | 1137 defined in regex.h. We return the old syntax. */ |
|
441
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Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
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|
1138 |
|
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Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
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diff
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|
1139 reg_syntax_t |
|
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|
1140 re_set_syntax (syntax) |
|
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|
1141 reg_syntax_t syntax; |
|
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|
1142 { |
|
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|
1143 reg_syntax_t ret = re_syntax_options; |
|
515
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|
1144 |
|
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|
1145 re_syntax_options = syntax; |
|
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|
1146 return ret; |
|
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Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
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|
1147 } |
|
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|
1148 |
|
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Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
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diff
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|
1149 /* This table gives an error message for each of the error codes listed |
| 941 | 1150 in regex.h. Obviously the order here has to be same as there. |
|
441
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|
1151 POSIX doesn't require that we do anything for REG_NOERROR, |
| 941 | 1152 but why not be nice? */ |
|
441
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|
1153 |
|
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Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
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diff
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|
1154 static const char *re_error_msgid[] = |
|
515
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(gettext_noop): New macro, identity fn.
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|
1155 { |
|
69ba3b63e1d1
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|
1156 gettext_noop ("Success"), /* REG_NOERROR */ |
|
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|
1157 gettext_noop ("No match"), /* REG_NOMATCH */ |
|
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|
1158 gettext_noop ("Invalid regular expression"), /* REG_BADPAT */ |
|
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|
1159 gettext_noop ("Invalid collation character"), /* REG_ECOLLATE */ |
|
69ba3b63e1d1
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Roland McGrath <roland@gnu.org>
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|
1160 gettext_noop ("Invalid character class name"), /* REG_ECTYPE */ |
|
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|
1161 gettext_noop ("Trailing backslash"), /* REG_EESCAPE */ |
|
69ba3b63e1d1
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|
1162 gettext_noop ("Invalid back reference"), /* REG_ESUBREG */ |
|
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parents:
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|
1163 gettext_noop ("Unmatched [ or [^"), /* REG_EBRACK */ |
|
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|
1164 gettext_noop ("Unmatched ( or \\("), /* REG_EPAREN */ |
|
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|
1165 gettext_noop ("Unmatched \\{"), /* REG_EBRACE */ |
|
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|
1166 gettext_noop ("Invalid content of \\{\\}"), /* REG_BADBR */ |
|
69ba3b63e1d1
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diff
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|
1167 gettext_noop ("Invalid range end"), /* REG_ERANGE */ |
|
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Roland McGrath <roland@gnu.org>
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511
diff
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|
1168 gettext_noop ("Memory exhausted"), /* REG_ESPACE */ |
|
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(gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents:
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diff
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|
1169 gettext_noop ("Invalid preceding regular expression"), /* REG_BADRPT */ |
|
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(gettext_noop): New macro, identity fn.
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diff
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|
1170 gettext_noop ("Premature end of regular expression"), /* REG_EEND */ |
|
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diff
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|
1171 gettext_noop ("Regular expression too big"), /* REG_ESIZE */ |
|
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|
1172 gettext_noop ("Unmatched ) or \\)"), /* REG_ERPAREN */ |
|
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|
1173 }; |
|
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|
1174 |
| 941 | 1175 /* Avoiding alloca during matching, to placate r_alloc. */ |
|
441
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|
1176 |
|
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|
1177 /* Define MATCH_MAY_ALLOCATE unless we need to make sure that the |
|
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Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
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changeset
|
1178 searching and matching functions should not call alloca. On some |
|
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diff
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|
1179 systems, alloca is implemented in terms of malloc, and if we're |
|
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Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
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diff
changeset
|
1180 using the relocating allocator routines, then malloc could cause a |
|
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Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
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|
1181 relocation, which might (if the strings being searched are in the |
|
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diff
changeset
|
1182 ralloc heap) shift the data out from underneath the regexp |
|
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Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
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|
1183 routines. |
|
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Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
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|
1184 |
|
515
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(gettext_noop): New macro, identity fn.
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diff
changeset
|
1185 Here's another reason to avoid allocation: Emacs |
|
441
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diff
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|
1186 processes input from X in a signal handler; processing X input may |
|
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|
1187 call malloc; if input arrives while a matching routine is calling |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
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diff
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|
1188 malloc, then we're scrod. But Emacs can't just block input while |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
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438
diff
changeset
|
1189 calling matching routines; then we don't notice interrupts when |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
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diff
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|
1190 they come in. So, Emacs blocks input around all regexp calls |
|
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Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
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|
1191 except the matching calls, which it leaves unprotected, in the |
|
403b2dfdfa0b
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diff
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|
1192 faith that they will not malloc. */ |
|
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Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
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|
1193 |
|
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Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
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diff
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|
1194 /* Normally, this is fine. */ |
|
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Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
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diff
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|
1195 #define MATCH_MAY_ALLOCATE |
|
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Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
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diff
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|
1196 |
|
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Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
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438
diff
changeset
|
1197 /* When using GNU C, we are not REALLY using the C alloca, no matter |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
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diff
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|
1198 what config.h may say. So don't take precautions for it. */ |
|
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Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
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diff
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|
1199 #ifdef __GNUC__ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
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diff
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|
1200 #undef C_ALLOCA |
|
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Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
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diff
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|
1201 #endif |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
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diff
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|
1202 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1203 /* The match routines may not allocate if (1) they would do it with malloc |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
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diff
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|
1204 and (2) it's not safe for them to use malloc. |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
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diff
changeset
|
1205 Note that if REL_ALLOC is defined, matching would not use malloc for the |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
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diff
changeset
|
1206 failure stack, but we would still use it for the register vectors; |
| 941 | 1207 so REL_ALLOC should not affect this. */ |
|
441
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Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
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diff
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|
1208 #if (defined (C_ALLOCA) || defined (REGEX_MALLOC)) && defined (emacs) |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
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diff
changeset
|
1209 #undef MATCH_MAY_ALLOCATE |
|
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Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
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diff
changeset
|
1210 #endif |
|
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Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
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diff
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|
1211 |
|
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Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
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diff
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|
1212 |
|
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Roland McGrath <roland@gnu.org>
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438
diff
changeset
|
1213 /* Failure stack declarations and macros; both re_compile_fastmap and |
|
403b2dfdfa0b
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Roland McGrath <roland@gnu.org>
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438
diff
changeset
|
1214 re_match_2 use a failure stack. These have to be macros because of |
|
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Roland McGrath <roland@gnu.org>
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diff
changeset
|
1215 REGEX_ALLOCATE_STACK. */ |
|
515
69ba3b63e1d1
(gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
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diff
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|
1216 |
|
441
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Roland McGrath <roland@gnu.org>
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438
diff
changeset
|
1217 |
|
1156
8e1cbb305ddc
(TYPICAL_FAILURE_SIZE): Renamed from MAX_FAILURE_ITEMS.
Karl Heuer <kwzh@gnu.org>
parents:
992
diff
changeset
|
1218 /* Approximate number of failure points for which to initially allocate space |
|
441
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Roland McGrath <roland@gnu.org>
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diff
changeset
|
1219 when matching. If this number is exceeded, we allocate more |
|
403b2dfdfa0b
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|
1220 space, so it is not a hard limit. */ |
|
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|
1221 #ifndef INIT_FAILURE_ALLOC |
|
1156
8e1cbb305ddc
(TYPICAL_FAILURE_SIZE): Renamed from MAX_FAILURE_ITEMS.
Karl Heuer <kwzh@gnu.org>
parents:
992
diff
changeset
|
1222 #define INIT_FAILURE_ALLOC 20 |
|
441
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|
1223 #endif |
|
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|
1224 |
|
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diff
changeset
|
1225 /* Roughly the maximum number of failure points on the stack. Would be |
|
1156
8e1cbb305ddc
(TYPICAL_FAILURE_SIZE): Renamed from MAX_FAILURE_ITEMS.
Karl Heuer <kwzh@gnu.org>
parents:
992
diff
changeset
|
1226 exactly that if always used TYPICAL_FAILURE_SIZE items each time we failed. |
|
441
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|
1227 This is a variable only so users of regex can assign to it; we never |
| 941 | 1228 change it ourselves. */ |
|
441
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|
1229 #if defined (MATCH_MAY_ALLOCATE) |
|
1156
8e1cbb305ddc
(TYPICAL_FAILURE_SIZE): Renamed from MAX_FAILURE_ITEMS.
Karl Heuer <kwzh@gnu.org>
parents:
992
diff
changeset
|
1230 /* Note that 4400 is enough to cause a crash on Alpha OSF/1, |
|
8e1cbb305ddc
(TYPICAL_FAILURE_SIZE): Renamed from MAX_FAILURE_ITEMS.
Karl Heuer <kwzh@gnu.org>
parents:
992
diff
changeset
|
1231 whose default stack limit is 2mb. In order for a larger |
|
8e1cbb305ddc
(TYPICAL_FAILURE_SIZE): Renamed from MAX_FAILURE_ITEMS.
Karl Heuer <kwzh@gnu.org>
parents:
992
diff
changeset
|
1232 value to work reliably, you have to try to make it accord |
|
8e1cbb305ddc
(TYPICAL_FAILURE_SIZE): Renamed from MAX_FAILURE_ITEMS.
Karl Heuer <kwzh@gnu.org>
parents:
992
diff
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|
1233 with the process stack limit. */ |
|
8e1cbb305ddc
(TYPICAL_FAILURE_SIZE): Renamed from MAX_FAILURE_ITEMS.
Karl Heuer <kwzh@gnu.org>
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diff
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|
1234 int re_max_failures = 40000; |
|
441
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|
1235 #else |
|
1156
8e1cbb305ddc
(TYPICAL_FAILURE_SIZE): Renamed from MAX_FAILURE_ITEMS.
Karl Heuer <kwzh@gnu.org>
parents:
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diff
changeset
|
1236 int re_max_failures = 4000; |
|
441
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diff
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|
1237 #endif |
|
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Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
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diff
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|
1238 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
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diff
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|
1239 union fail_stack_elt |
|
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Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
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|
1240 { |
|
2349
5fa185a9956e
* regex.c: Declare a new type `re_char' used throughout the code for the
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2345
diff
changeset
|
1241 const unsigned char *pointer; |
|
2345
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
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|
1242 unsigned int integer; |
|
441
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Roland McGrath <roland@gnu.org>
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|
1243 }; |
|
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Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
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diff
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|
1244 |
|
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Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
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|
1245 typedef union fail_stack_elt fail_stack_elt_t; |
|
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Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
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|
1246 |
|
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Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
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|
1247 typedef struct |
|
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Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
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|
1248 { |
|
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Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
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|
1249 fail_stack_elt_t *stack; |
|
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Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
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diff
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|
1250 unsigned size; |
|
2345
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This is a big redesign of failure-stack and register handling, prompted
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|
1251 unsigned avail; /* Offset of next open position. */ |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
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|
1252 unsigned frame; /* Offset of the cur constructed frame. */ |
|
441
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|
1253 } fail_stack_type; |
|
403b2dfdfa0b
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Roland McGrath <roland@gnu.org>
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|
1254 |
|
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93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
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|
1255 #define PATTERN_STACK_EMPTY() (fail_stack.avail == 0) |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
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|
1256 #define FAIL_STACK_EMPTY() (fail_stack.frame == 0) |
|
441
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Roland McGrath <roland@gnu.org>
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|
1257 #define FAIL_STACK_FULL() (fail_stack.avail == fail_stack.size) |
|
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1258 |
|
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Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
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|
1259 |
|
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Roland McGrath <roland@gnu.org>
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diff
changeset
|
1260 /* Define macros to initialize and free the failure stack. |
|
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|
1261 Do `return -2' if the alloc fails. */ |
|
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|
1262 |
|
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Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
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diff
changeset
|
1263 #ifdef MATCH_MAY_ALLOCATE |
|
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Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
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diff
changeset
|
1264 #define INIT_FAIL_STACK() \ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
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|
1265 do { \ |
|
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Roland McGrath <roland@gnu.org>
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diff
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|
1266 fail_stack.stack = (fail_stack_elt_t *) \ |
|
1156
8e1cbb305ddc
(TYPICAL_FAILURE_SIZE): Renamed from MAX_FAILURE_ITEMS.
Karl Heuer <kwzh@gnu.org>
parents:
992
diff
changeset
|
1267 REGEX_ALLOCATE_STACK (INIT_FAILURE_ALLOC * TYPICAL_FAILURE_SIZE \ |
|
8e1cbb305ddc
(TYPICAL_FAILURE_SIZE): Renamed from MAX_FAILURE_ITEMS.
Karl Heuer <kwzh@gnu.org>
parents:
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diff
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|
1268 * sizeof (fail_stack_elt_t)); \ |
|
441
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Roland McGrath <roland@gnu.org>
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|
1269 \ |
|
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Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
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diff
changeset
|
1270 if (fail_stack.stack == NULL) \ |
|
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Roland McGrath <roland@gnu.org>
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diff
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|
1271 return -2; \ |
|
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Roland McGrath <roland@gnu.org>
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|
1272 \ |
|
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Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
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|
1273 fail_stack.size = INIT_FAILURE_ALLOC; \ |
|
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Roland McGrath <roland@gnu.org>
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|
1274 fail_stack.avail = 0; \ |
|
2345
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This is a big redesign of failure-stack and register handling, prompted
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|
1275 fail_stack.frame = 0; \ |
|
441
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Roland McGrath <roland@gnu.org>
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diff
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|
1276 } while (0) |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
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|
1277 |
|
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Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
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diff
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|
1278 #define RESET_FAIL_STACK() REGEX_FREE_STACK (fail_stack.stack) |
|
403b2dfdfa0b
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changeset
|
1279 #else |
|
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Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
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|
1280 #define INIT_FAIL_STACK() \ |
|
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|
1281 do { \ |
|
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Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
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diff
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|
1282 fail_stack.avail = 0; \ |
|
2345
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
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diff
changeset
|
1283 fail_stack.frame = 0; \ |
|
441
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Roland McGrath <roland@gnu.org>
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diff
changeset
|
1284 } while (0) |
|
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Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
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|
1285 |
|
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Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
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438
diff
changeset
|
1286 #define RESET_FAIL_STACK() |
|
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Roland McGrath <roland@gnu.org>
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diff
changeset
|
1287 #endif |
|
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Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
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|
1288 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
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438
diff
changeset
|
1289 |
|
1156
8e1cbb305ddc
(TYPICAL_FAILURE_SIZE): Renamed from MAX_FAILURE_ITEMS.
Karl Heuer <kwzh@gnu.org>
parents:
992
diff
changeset
|
1290 /* Double the size of FAIL_STACK, up to a limit |
|
8e1cbb305ddc
(TYPICAL_FAILURE_SIZE): Renamed from MAX_FAILURE_ITEMS.
Karl Heuer <kwzh@gnu.org>
parents:
992
diff
changeset
|
1291 which allows approximately `re_max_failures' items. |
|
441
403b2dfdfa0b
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diff
changeset
|
1292 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
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diff
changeset
|
1293 Return 1 if succeeds, and 0 if either ran out of memory |
|
515
69ba3b63e1d1
(gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents:
511
diff
changeset
|
1294 allocating space for it or it was already too large. |
|
69ba3b63e1d1
(gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents:
511
diff
changeset
|
1295 |
| 941 | 1296 REGEX_REALLOCATE_STACK requires `destination' be declared. */ |
|
441
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Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
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diff
changeset
|
1297 |
|
1156
8e1cbb305ddc
(TYPICAL_FAILURE_SIZE): Renamed from MAX_FAILURE_ITEMS.
Karl Heuer <kwzh@gnu.org>
parents:
992
diff
changeset
|
1298 /* Factor to increase the failure stack size by |
|
8e1cbb305ddc
(TYPICAL_FAILURE_SIZE): Renamed from MAX_FAILURE_ITEMS.
Karl Heuer <kwzh@gnu.org>
parents:
992
diff
changeset
|
1299 when we increase it. |
|
8e1cbb305ddc
(TYPICAL_FAILURE_SIZE): Renamed from MAX_FAILURE_ITEMS.
Karl Heuer <kwzh@gnu.org>
parents:
992
diff
changeset
|
1300 This used to be 2, but 2 was too wasteful |
|
8e1cbb305ddc
(TYPICAL_FAILURE_SIZE): Renamed from MAX_FAILURE_ITEMS.
Karl Heuer <kwzh@gnu.org>
parents:
992
diff
changeset
|
1301 because the old discarded stacks added up to as much space |
|
8e1cbb305ddc
(TYPICAL_FAILURE_SIZE): Renamed from MAX_FAILURE_ITEMS.
Karl Heuer <kwzh@gnu.org>
parents:
992
diff
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|
1302 were as ultimate, maximum-size stack. */ |
|
8e1cbb305ddc
(TYPICAL_FAILURE_SIZE): Renamed from MAX_FAILURE_ITEMS.
Karl Heuer <kwzh@gnu.org>
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992
diff
changeset
|
1303 #define FAIL_STACK_GROWTH_FACTOR 4 |
|
8e1cbb305ddc
(TYPICAL_FAILURE_SIZE): Renamed from MAX_FAILURE_ITEMS.
Karl Heuer <kwzh@gnu.org>
parents:
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diff
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|
1304 |
|
8e1cbb305ddc
(TYPICAL_FAILURE_SIZE): Renamed from MAX_FAILURE_ITEMS.
Karl Heuer <kwzh@gnu.org>
parents:
992
diff
changeset
|
1305 #define GROW_FAIL_STACK(fail_stack) \ |
|
1158
282562802f46
(GROW_FAIL_STACK): Fix test for stack size at max.
Karl Heuer <kwzh@gnu.org>
parents:
1157
diff
changeset
|
1306 (((fail_stack).size * sizeof (fail_stack_elt_t) \ |
|
282562802f46
(GROW_FAIL_STACK): Fix test for stack size at max.
Karl Heuer <kwzh@gnu.org>
parents:
1157
diff
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|
1307 >= re_max_failures * TYPICAL_FAILURE_SIZE) \ |
|
441
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|
1308 ? 0 \ |
|
1156
8e1cbb305ddc
(TYPICAL_FAILURE_SIZE): Renamed from MAX_FAILURE_ITEMS.
Karl Heuer <kwzh@gnu.org>
parents:
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diff
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|
1309 : ((fail_stack).stack \ |
|
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(TYPICAL_FAILURE_SIZE): Renamed from MAX_FAILURE_ITEMS.
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diff
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|
1310 = (fail_stack_elt_t *) \ |
| 941 | 1311 REGEX_REALLOCATE_STACK ((fail_stack).stack, \ |
| 1312 (fail_stack).size * sizeof (fail_stack_elt_t), \ | |
|
1156
8e1cbb305ddc
(TYPICAL_FAILURE_SIZE): Renamed from MAX_FAILURE_ITEMS.
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changeset
|
1313 MIN (re_max_failures * TYPICAL_FAILURE_SIZE, \ |
|
8e1cbb305ddc
(TYPICAL_FAILURE_SIZE): Renamed from MAX_FAILURE_ITEMS.
Karl Heuer <kwzh@gnu.org>
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changeset
|
1314 ((fail_stack).size * sizeof (fail_stack_elt_t) \ |
|
8e1cbb305ddc
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diff
changeset
|
1315 * FAIL_STACK_GROWTH_FACTOR))), \ |
|
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|
1316 \ |
|
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|
1317 (fail_stack).stack == NULL \ |
|
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|
1318 ? 0 \ |
|
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|
1319 : ((fail_stack).size \ |
|
5aa89bba935d
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|
1320 = (MIN (re_max_failures * TYPICAL_FAILURE_SIZE, \ |
|
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Karl Heuer <kwzh@gnu.org>
parents:
1156
diff
changeset
|
1321 ((fail_stack).size * sizeof (fail_stack_elt_t) \ |
|
5aa89bba935d
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|
1322 * FAIL_STACK_GROWTH_FACTOR)) \ |
|
5aa89bba935d
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|
1323 / sizeof (fail_stack_elt_t)), \ |
| 941 | 1324 1))) |
|
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|
1325 |
|
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Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
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|
1326 |
|
515
69ba3b63e1d1
(gettext_noop): New macro, identity fn.
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511
diff
changeset
|
1327 /* Push pointer POINTER on FAIL_STACK. |
|
441
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|
1328 Return 1 if was able to do so and 0 if ran out of memory allocating |
|
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|
1329 space to do so. */ |
|
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|
1330 #define PUSH_PATTERN_OP(POINTER, FAIL_STACK) \ |
|
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changeset
|
1331 ((FAIL_STACK_FULL () \ |
|
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|
1332 && !GROW_FAIL_STACK (FAIL_STACK)) \ |
|
441
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changeset
|
1333 ? 0 \ |
|
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diff
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|
1334 : ((FAIL_STACK).stack[(FAIL_STACK).avail++].pointer = POINTER, \ |
|
403b2dfdfa0b
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changeset
|
1335 1)) |
|
2345
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
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diff
changeset
|
1336 #define POP_PATTERN_OP() POP_FAILURE_POINTER () |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1337 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1338 /* Push a pointer value onto the failure stack. |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1339 Assumes the variable `fail_stack'. Probably should only |
| 941 | 1340 be called from within `PUSH_FAILURE_POINT'. */ |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1341 #define PUSH_FAILURE_POINTER(item) \ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1342 fail_stack.stack[fail_stack.avail++].pointer = (unsigned char *) (item) |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1343 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1344 /* This pushes an integer-valued item onto the failure stack. |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1345 Assumes the variable `fail_stack'. Probably should only |
| 941 | 1346 be called from within `PUSH_FAILURE_POINT'. */ |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1347 #define PUSH_FAILURE_INT(item) \ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1348 fail_stack.stack[fail_stack.avail++].integer = (item) |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1349 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1350 /* Push a fail_stack_elt_t value onto the failure stack. |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1351 Assumes the variable `fail_stack'. Probably should only |
| 941 | 1352 be called from within `PUSH_FAILURE_POINT'. */ |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1353 #define PUSH_FAILURE_ELT(item) \ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1354 fail_stack.stack[fail_stack.avail++] = (item) |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1355 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1356 /* These three POP... operations complement the three PUSH... operations. |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1357 All assume that `fail_stack' is nonempty. */ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1358 #define POP_FAILURE_POINTER() fail_stack.stack[--fail_stack.avail].pointer |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1359 #define POP_FAILURE_INT() fail_stack.stack[--fail_stack.avail].integer |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1360 #define POP_FAILURE_ELT() fail_stack.stack[--fail_stack.avail] |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1361 |
|
2345
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
1362 /* Individual items aside from the registers. */ |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
1363 #define NUM_NONREG_ITEMS 3 |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
1364 |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
1365 /* Used to examine the stack (to detect infinite loops). */ |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
1366 #define FAILURE_PAT(h) fail_stack.stack[(h) - 1].pointer |
|
2349
5fa185a9956e
* regex.c: Declare a new type `re_char' used throughout the code for the
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2345
diff
changeset
|
1367 #define FAILURE_STR(h) (fail_stack.stack[(h) - 2].pointer) |
|
2345
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
1368 #define NEXT_FAILURE_HANDLE(h) fail_stack.stack[(h) - 3].integer |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
1369 #define TOP_FAILURE_HANDLE() fail_stack.frame |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
1370 |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
1371 |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
1372 #define ENSURE_FAIL_STACK(space) \ |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
1373 while (REMAINING_AVAIL_SLOTS <= space) { \ |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
1374 if (!GROW_FAIL_STACK (fail_stack)) \ |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
1375 return -2; \ |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
1376 DEBUG_PRINT2 ("\n Doubled stack; size now: %d\n", (fail_stack).size);\ |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
1377 DEBUG_PRINT2 (" slots available: %d\n", REMAINING_AVAIL_SLOTS);\ |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
1378 } |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
1379 |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
1380 /* Push register NUM onto the stack. */ |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
1381 #define PUSH_FAILURE_REG(num) \ |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
1382 do { \ |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
1383 char *destination; \ |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
1384 ENSURE_FAIL_STACK(3); \ |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
1385 DEBUG_PRINT4 (" Push reg %d (spanning %p -> %p)\n", \ |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
1386 num, regstart[num], regend[num]); \ |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
1387 PUSH_FAILURE_POINTER (regstart[num]); \ |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
1388 PUSH_FAILURE_POINTER (regend[num]); \ |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
1389 PUSH_FAILURE_INT (num); \ |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
1390 } while (0) |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
1391 |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
1392 /* Pop a saved register off the stack. */ |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
1393 #define POP_FAILURE_REG() \ |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
1394 do { \ |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
1395 int reg = POP_FAILURE_INT (); \ |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
1396 regend[reg] = POP_FAILURE_POINTER (); \ |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
1397 regstart[reg] = POP_FAILURE_POINTER (); \ |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
1398 DEBUG_PRINT4 (" Pop reg %d (spanning %p -> %p)\n", \ |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
1399 reg, regstart[reg], regend[reg]); \ |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
1400 } while (0) |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
1401 |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
1402 /* Check that we are not stuck in an infinite loop. */ |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
1403 #define CHECK_INFINITE_LOOP(pat_cur, string_place) \ |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
1404 do { \ |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
1405 int failure = TOP_FAILURE_HANDLE(); \ |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
1406 /* Check for infinite matching loops */ \ |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
1407 while (failure > 0 && \ |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
1408 (FAILURE_STR (failure) == string_place \ |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
1409 || FAILURE_STR (failure) == NULL)) \ |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
1410 { \ |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
1411 assert (FAILURE_PAT (failure) >= bufp->buffer \ |
|
2349
5fa185a9956e
* regex.c: Declare a new type `re_char' used throughout the code for the
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2345
diff
changeset
|
1412 && FAILURE_PAT (failure) <= bufp->buffer + bufp->used); \ |
|
2345
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
1413 if (FAILURE_PAT (failure) == pat_cur) \ |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
1414 goto fail; \ |
|
2349
5fa185a9956e
* regex.c: Declare a new type `re_char' used throughout the code for the
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2345
diff
changeset
|
1415 DEBUG_PRINT2 (" Other pattern: %p\n", FAILURE_PAT (failure)); \ |
|
2345
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
1416 failure = NEXT_FAILURE_HANDLE(failure); \ |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
1417 } \ |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
1418 DEBUG_PRINT2 (" Other string: %p\n", FAILURE_STR (failure)); \ |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
1419 } while (0) |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
1420 |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1421 /* Push the information about the state we will need |
|
515
69ba3b63e1d1
(gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents:
511
diff
changeset
|
1422 if we ever fail back to it. |
|
69ba3b63e1d1
(gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents:
511
diff
changeset
|
1423 |
|
2345
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
1424 Requires variables fail_stack, regstart, regend and |
|
1156
8e1cbb305ddc
(TYPICAL_FAILURE_SIZE): Renamed from MAX_FAILURE_ITEMS.
Karl Heuer <kwzh@gnu.org>
parents:
992
diff
changeset
|
1425 num_regs be declared. GROW_FAIL_STACK requires `destination' be |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1426 declared. |
|
515
69ba3b63e1d1
(gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents:
511
diff
changeset
|
1427 |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1428 Does `return FAILURE_CODE' if runs out of memory. */ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1429 |
|
2345
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
1430 #define PUSH_FAILURE_POINT(pattern, string_place) \ |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
1431 do { \ |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
1432 char *destination; \ |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
1433 /* Must be int, so when we don't save any registers, the arithmetic \ |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
1434 of 0 + -1 isn't done as unsigned. */ \ |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
1435 \ |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
1436 DEBUG_STATEMENT (failure_id++); \ |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
1437 DEBUG_STATEMENT (nfailure_points_pushed++); \ |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
1438 DEBUG_PRINT2 ("\nPUSH_FAILURE_POINT #%u:\n", failure_id); \ |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
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parents:
2153
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changeset
|
1439 DEBUG_PRINT2 (" Before push, next avail: %d\n", (fail_stack).avail); \ |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
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parents:
2153
diff
changeset
|
1440 DEBUG_PRINT2 (" size: %d\n", (fail_stack).size);\ |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
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changeset
|
1441 \ |
|
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This is a big redesign of failure-stack and register handling, prompted
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parents:
2153
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changeset
|
1442 ENSURE_FAIL_STACK (NUM_NONREG_ITEMS); \ |
|
93d6633849d6
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diff
changeset
|
1443 \ |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
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parents:
2153
diff
changeset
|
1444 DEBUG_PRINT1 ("\n"); \ |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
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parents:
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diff
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|
1445 \ |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
1446 DEBUG_PRINT2 (" Push frame index: %d\n", fail_stack.frame); \ |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
1447 PUSH_FAILURE_INT (fail_stack.frame); \ |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
1448 \ |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
1449 DEBUG_PRINT2 (" Push string %p: `", string_place); \ |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
1450 DEBUG_PRINT_DOUBLE_STRING (string_place, string1, size1, string2, size2);\ |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
1451 DEBUG_PRINT1 ("'\n"); \ |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
1452 PUSH_FAILURE_POINTER (string_place); \ |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
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diff
changeset
|
1453 \ |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
1454 DEBUG_PRINT2 (" Push pattern %p: ", pattern); \ |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
1455 DEBUG_PRINT_COMPILED_PATTERN (bufp, pattern, pend); \ |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
1456 PUSH_FAILURE_POINTER (pattern); \ |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
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parents:
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diff
changeset
|
1457 \ |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
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parents:
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diff
changeset
|
1458 /* Close the frame by moving the frame pointer past it. */ \ |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
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|
1459 fail_stack.frame = fail_stack.avail; \ |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
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changeset
|
1460 } while (0) |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1461 |
|
1156
8e1cbb305ddc
(TYPICAL_FAILURE_SIZE): Renamed from MAX_FAILURE_ITEMS.
Karl Heuer <kwzh@gnu.org>
parents:
992
diff
changeset
|
1462 /* Estimate the size of data pushed by a typical failure stack entry. |
|
8e1cbb305ddc
(TYPICAL_FAILURE_SIZE): Renamed from MAX_FAILURE_ITEMS.
Karl Heuer <kwzh@gnu.org>
parents:
992
diff
changeset
|
1463 An estimate is all we need, because all we use this for |
|
8e1cbb305ddc
(TYPICAL_FAILURE_SIZE): Renamed from MAX_FAILURE_ITEMS.
Karl Heuer <kwzh@gnu.org>
parents:
992
diff
changeset
|
1464 is to choose a limit for how big to make the failure stack. */ |
|
8e1cbb305ddc
(TYPICAL_FAILURE_SIZE): Renamed from MAX_FAILURE_ITEMS.
Karl Heuer <kwzh@gnu.org>
parents:
992
diff
changeset
|
1465 |
|
8e1cbb305ddc
(TYPICAL_FAILURE_SIZE): Renamed from MAX_FAILURE_ITEMS.
Karl Heuer <kwzh@gnu.org>
parents:
992
diff
changeset
|
1466 #define TYPICAL_FAILURE_SIZE 20 |
|
8e1cbb305ddc
(TYPICAL_FAILURE_SIZE): Renamed from MAX_FAILURE_ITEMS.
Karl Heuer <kwzh@gnu.org>
parents:
992
diff
changeset
|
1467 |
|
441
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Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
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438
diff
changeset
|
1468 /* How many items can still be added to the stack without overflowing it. */ |
|
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Roland McGrath <roland@gnu.org>
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diff
changeset
|
1469 #define REMAINING_AVAIL_SLOTS ((fail_stack).size - (fail_stack).avail) |
|
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Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
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diff
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|
1470 |
|
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Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1471 |
|
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Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
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438
diff
changeset
|
1472 /* Pops what PUSH_FAIL_STACK pushes. |
|
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diff
changeset
|
1473 |
|
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Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1474 We restore into the parameters, all of which should be lvalues: |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1475 STR -- the saved data position. |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1476 PAT -- the saved pattern position. |
|
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Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1477 REGSTART, REGEND -- arrays of string positions. |
|
515
69ba3b63e1d1
(gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents:
511
diff
changeset
|
1478 |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1479 Also assumes the variables `fail_stack' and (if debugging), `bufp', |
| 941 | 1480 `pend', `string1', `size1', `string2', and `size2'. */ |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1481 |
|
2345
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|
1482 #define POP_FAILURE_POINT(str, pat) \ |
|
93d6633849d6
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changeset
|
1483 do { \ |
|
441
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Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1484 assert (!FAIL_STACK_EMPTY ()); \ |
|
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Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
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diff
changeset
|
1485 \ |
|
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Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1486 /* Remove failure points and point to how many regs pushed. */ \ |
|
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Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
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diff
changeset
|
1487 DEBUG_PRINT1 ("POP_FAILURE_POINT:\n"); \ |
|
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Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1488 DEBUG_PRINT2 (" Before pop, next avail: %d\n", fail_stack.avail); \ |
| 941 | 1489 DEBUG_PRINT2 (" size: %d\n", fail_stack.size); \ |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
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438
diff
changeset
|
1490 \ |
|
2345
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changeset
|
1491 /* Pop the saved registers. */ \ |
|
93d6633849d6
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changeset
|
1492 while (fail_stack.frame < fail_stack.avail) \ |
|
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This is a big redesign of failure-stack and register handling, prompted
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changeset
|
1493 POP_FAILURE_REG (); \ |
|
441
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438
diff
changeset
|
1494 \ |
|
2345
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changeset
|
1495 pat = (unsigned char *) POP_FAILURE_POINTER (); \ |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
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2153
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changeset
|
1496 DEBUG_PRINT2 (" Popping pattern %p: ", pat); \ |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
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2153
diff
changeset
|
1497 DEBUG_PRINT_COMPILED_PATTERN (bufp, pat, pend); \ |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1498 \ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1499 /* If the saved string location is NULL, it came from an \ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1500 on_failure_keep_string_jump opcode, and we want to throw away the \ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1501 saved NULL, thus retaining our current position in the string. */ \ |
|
2349
5fa185a9956e
* regex.c: Declare a new type `re_char' used throughout the code for the
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2345
diff
changeset
|
1502 str = (re_char *) POP_FAILURE_POINTER (); \ |
|
2345
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
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changeset
|
1503 DEBUG_PRINT2 (" Popping string %p: `", str); \ |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1504 DEBUG_PRINT_DOUBLE_STRING (str, string1, size1, string2, size2); \ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1505 DEBUG_PRINT1 ("'\n"); \ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1506 \ |
|
2345
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
1507 fail_stack.frame = POP_FAILURE_INT (); \ |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
1508 DEBUG_PRINT2 (" Popping frame index: %d\n", fail_stack.frame); \ |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1509 \ |
|
2345
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
1510 assert (fail_stack.avail >= 0); \ |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
1511 assert (fail_stack.frame <= fail_stack.avail); \ |
|
480
998dc67883fb
(PUSH_FAILURE_POINT, POP_FAILURE_POINT): Don't push or pop
Richard Stallman <rms@gnu.org>
parents:
463
diff
changeset
|
1512 \ |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1513 DEBUG_STATEMENT (nfailure_points_popped++); \ |
|
2345
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
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parents:
2153
diff
changeset
|
1514 } while (0) /* POP_FAILURE_POINT */ |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1515 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1516 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1517 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1518 /* Registers are set to a sentinel when they haven't yet matched. */ |
|
2345
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
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2153
diff
changeset
|
1519 #define REG_UNSET_VALUE NULL |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1520 #define REG_UNSET(e) ((e) == REG_UNSET_VALUE) |
|
403b2dfdfa0b
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Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1521 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1522 /* Subroutine declarations and macros for regex_compile. */ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1523 |
|
2350
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2349
diff
changeset
|
1524 static void store_op1 _RE_ARGS((re_opcode_t op, unsigned char *loc, int arg)); |
|
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2349
diff
changeset
|
1525 static void store_op2 _RE_ARGS((re_opcode_t op, unsigned char *loc, |
|
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2349
diff
changeset
|
1526 int arg1, int arg2)); |
|
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2349
diff
changeset
|
1527 static void insert_op1 _RE_ARGS((re_opcode_t op, unsigned char *loc, |
|
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2349
diff
changeset
|
1528 int arg, unsigned char *end)); |
|
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2349
diff
changeset
|
1529 static void insert_op2 _RE_ARGS((re_opcode_t op, unsigned char *loc, |
|
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2349
diff
changeset
|
1530 int arg1, int arg2, unsigned char *end)); |
|
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2349
diff
changeset
|
1531 static boolean at_begline_loc_p _RE_ARGS((const unsigned char *pattern, |
|
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2349
diff
changeset
|
1532 const unsigned char *p, |
|
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2349
diff
changeset
|
1533 reg_syntax_t syntax)); |
|
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2349
diff
changeset
|
1534 static boolean at_endline_loc_p _RE_ARGS((const unsigned char *p, |
|
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2349
diff
changeset
|
1535 const unsigned char *pend, |
|
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2349
diff
changeset
|
1536 reg_syntax_t syntax)); |
|
2355
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
1537 static unsigned char *skip_one_char _RE_ARGS((unsigned char *p)); |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1538 |
|
515
69ba3b63e1d1
(gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents:
511
diff
changeset
|
1539 /* Fetch the next character in the uncompiled pattern---translating it |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1540 if necessary. Also cast from a signed character in the constant |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1541 string passed to us by the user to an unsigned char that we can use |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1542 as an array index (in, e.g., `translate'). */ |
|
501
f29b13c2cefd
(TRANSLATE, PATFETCH): Cast elt of `translate'.
Richard Stallman <rms@gnu.org>
parents:
490
diff
changeset
|
1543 #ifndef PATFETCH |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1544 #define PATFETCH(c) \ |
|
2350
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2349
diff
changeset
|
1545 do { \ |
|
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2349
diff
changeset
|
1546 PATFETCH_RAW (c); \ |
|
1328
0aa10b723959
Use RE_TRANSLATE_P to check whether translation is
Andreas Schwab <schwab@suse.de>
parents:
1326
diff
changeset
|
1547 if (RE_TRANSLATE_P (translate)) c = RE_TRANSLATE (translate, c); \ |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1548 } while (0) |
|
501
f29b13c2cefd
(TRANSLATE, PATFETCH): Cast elt of `translate'.
Richard Stallman <rms@gnu.org>
parents:
490
diff
changeset
|
1549 #endif |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1550 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1551 /* Fetch the next character in the uncompiled pattern, with no |
| 941 | 1552 translation. */ |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1553 #define PATFETCH_RAW(c) \ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1554 do {if (p == pend) return REG_EEND; \ |
|
2349
5fa185a9956e
* regex.c: Declare a new type `re_char' used throughout the code for the
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2345
diff
changeset
|
1555 c = *p++; \ |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1556 } while (0) |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1557 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1558 /* Go backwards one character in the pattern. */ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1559 #define PATUNFETCH p-- |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1560 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1561 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1562 /* If `translate' is non-null, return translate[D], else just D. We |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1563 cast the subscript to translate because some data is declared as |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1564 `char *', to avoid warnings when a string constant is passed. But |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1565 when we use a character as a subscript we must make it unsigned. */ |
|
501
f29b13c2cefd
(TRANSLATE, PATFETCH): Cast elt of `translate'.
Richard Stallman <rms@gnu.org>
parents:
490
diff
changeset
|
1566 #ifndef TRANSLATE |
|
f29b13c2cefd
(TRANSLATE, PATFETCH): Cast elt of `translate'.
Richard Stallman <rms@gnu.org>
parents:
490
diff
changeset
|
1567 #define TRANSLATE(d) \ |
|
2349
5fa185a9956e
* regex.c: Declare a new type `re_char' used throughout the code for the
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2345
diff
changeset
|
1568 (RE_TRANSLATE_P (translate) ? RE_TRANSLATE (translate, (d)) : (d)) |
|
501
f29b13c2cefd
(TRANSLATE, PATFETCH): Cast elt of `translate'.
Richard Stallman <rms@gnu.org>
parents:
490
diff
changeset
|
1569 #endif |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1570 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1571 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1572 /* Macros for outputting the compiled pattern into `buffer'. */ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1573 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1574 /* If the buffer isn't allocated when it comes in, use this. */ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1575 #define INIT_BUF_SIZE 32 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1576 |
| 941 | 1577 /* Make sure we have at least N more bytes of space in buffer. */ |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1578 #define GET_BUFFER_SPACE(n) \ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1579 while (b - bufp->buffer + (n) > bufp->allocated) \ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1580 EXTEND_BUFFER () |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1581 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1582 /* Make sure we have one more byte of buffer space and then add C to it. */ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1583 #define BUF_PUSH(c) \ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1584 do { \ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1585 GET_BUFFER_SPACE (1); \ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1586 *b++ = (unsigned char) (c); \ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1587 } while (0) |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1588 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1589 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1590 /* Ensure we have two more bytes of buffer space and then append C1 and C2. */ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1591 #define BUF_PUSH_2(c1, c2) \ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1592 do { \ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1593 GET_BUFFER_SPACE (2); \ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1594 *b++ = (unsigned char) (c1); \ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1595 *b++ = (unsigned char) (c2); \ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1596 } while (0) |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1597 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1598 |
| 941 | 1599 /* As with BUF_PUSH_2, except for three bytes. */ |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1600 #define BUF_PUSH_3(c1, c2, c3) \ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1601 do { \ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1602 GET_BUFFER_SPACE (3); \ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1603 *b++ = (unsigned char) (c1); \ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1604 *b++ = (unsigned char) (c2); \ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1605 *b++ = (unsigned char) (c3); \ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1606 } while (0) |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1607 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1608 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1609 /* Store a jump with opcode OP at LOC to location TO. We store a |
| 941 | 1610 relative address offset by the three bytes the jump itself occupies. */ |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1611 #define STORE_JUMP(op, loc, to) \ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1612 store_op1 (op, loc, (to) - (loc) - 3) |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1613 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1614 /* Likewise, for a two-argument jump. */ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1615 #define STORE_JUMP2(op, loc, to, arg) \ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1616 store_op2 (op, loc, (to) - (loc) - 3, arg) |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1617 |
| 941 | 1618 /* Like `STORE_JUMP', but for inserting. Assume `b' is the buffer end. */ |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1619 #define INSERT_JUMP(op, loc, to) \ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1620 insert_op1 (op, loc, (to) - (loc) - 3, b) |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1621 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1622 /* Like `STORE_JUMP2', but for inserting. Assume `b' is the buffer end. */ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1623 #define INSERT_JUMP2(op, loc, to, arg) \ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1624 insert_op2 (op, loc, (to) - (loc) - 3, arg, b) |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1625 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1626 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1627 /* This is not an arbitrary limit: the arguments which represent offsets |
| 941 | 1628 into the pattern are two bytes long. So if 2^16 bytes turns out to |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1629 be too small, many things would have to change. */ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1630 #define MAX_BUF_SIZE (1L << 16) |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1631 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1632 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1633 /* Extend the buffer by twice its current size via realloc and |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1634 reset the pointers that pointed into the old block to point to the |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1635 correct places in the new one. If extending the buffer results in it |
| 941 | 1636 being larger than MAX_BUF_SIZE, then flag memory exhausted. */ |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1637 #define EXTEND_BUFFER() \ |
| 941 | 1638 do { \ |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1639 unsigned char *old_buffer = bufp->buffer; \ |
| 941 | 1640 if (bufp->allocated == MAX_BUF_SIZE) \ |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1641 return REG_ESIZE; \ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1642 bufp->allocated <<= 1; \ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1643 if (bufp->allocated > MAX_BUF_SIZE) \ |
| 941 | 1644 bufp->allocated = MAX_BUF_SIZE; \ |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1645 bufp->buffer = (unsigned char *) realloc (bufp->buffer, bufp->allocated);\ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1646 if (bufp->buffer == NULL) \ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1647 return REG_ESPACE; \ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1648 /* If the buffer moved, move all the pointers into it. */ \ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1649 if (old_buffer != bufp->buffer) \ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1650 { \ |
| 941 | 1651 b = (b - old_buffer) + bufp->buffer; \ |
| 1652 begalt = (begalt - old_buffer) + bufp->buffer; \ | |
| 1653 if (fixup_alt_jump) \ | |
| 1654 fixup_alt_jump = (fixup_alt_jump - old_buffer) + bufp->buffer;\ | |
| 1655 if (laststart) \ | |
| 1656 laststart = (laststart - old_buffer) + bufp->buffer; \ | |
| 1657 if (pending_exact) \ | |
| 1658 pending_exact = (pending_exact - old_buffer) + bufp->buffer; \ | |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1659 } \ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1660 } while (0) |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1661 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1662 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1663 /* Since we have one byte reserved for the register number argument to |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1664 {start,stop}_memory, the maximum number of groups we can report |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1665 things about is what fits in that byte. */ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1666 #define MAX_REGNUM 255 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1667 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1668 /* But patterns can have more than `MAX_REGNUM' registers. We just |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1669 ignore the excess. */ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1670 typedef unsigned regnum_t; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1671 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1672 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1673 /* Macros for the compile stack. */ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1674 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1675 /* Since offsets can go either forwards or backwards, this type needs to |
| 941 | 1676 be able to hold values from -(MAX_BUF_SIZE - 1) to MAX_BUF_SIZE - 1. */ |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1677 typedef int pattern_offset_t; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1678 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1679 typedef struct |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1680 { |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1681 pattern_offset_t begalt_offset; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1682 pattern_offset_t fixup_alt_jump; |
|
515
69ba3b63e1d1
(gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents:
511
diff
changeset
|
1683 pattern_offset_t laststart_offset; |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1684 regnum_t regnum; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1685 } compile_stack_elt_t; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1686 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1687 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1688 typedef struct |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1689 { |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1690 compile_stack_elt_t *stack; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1691 unsigned size; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1692 unsigned avail; /* Offset of next open position. */ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1693 } compile_stack_type; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1694 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1695 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1696 #define INIT_COMPILE_STACK_SIZE 32 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1697 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1698 #define COMPILE_STACK_EMPTY (compile_stack.avail == 0) |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1699 #define COMPILE_STACK_FULL (compile_stack.avail == compile_stack.size) |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1700 |
| 941 | 1701 /* The next available element. */ |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1702 #define COMPILE_STACK_TOP (compile_stack.stack[compile_stack.avail]) |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1703 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1704 |
| 939 | 1705 /* Structure to manage work area for range table. */ |
| 1706 struct range_table_work_area | |
| 1707 { | |
| 1708 int *table; /* actual work area. */ | |
| 1709 int allocated; /* allocated size for work area in bytes. */ | |
| 941 | 1710 int used; /* actually used size in words. */ |
|
1933
5ffa81ab1988
[emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents:
1660
diff
changeset
|
1711 int bits; /* flag to record character classes */ |
| 939 | 1712 }; |
| 1713 | |
| 1714 /* Make sure that WORK_AREA can hold more N multibyte characters. */ | |
| 1715 #define EXTEND_RANGE_TABLE_WORK_AREA(work_area, n) \ | |
| 1716 do { \ | |
| 1717 if (((work_area).used + (n)) * sizeof (int) > (work_area).allocated) \ | |
| 1718 { \ | |
| 1719 (work_area).allocated += 16 * sizeof (int); \ | |
| 1720 if ((work_area).table) \ | |
| 1721 (work_area).table \ | |
| 1722 = (int *) realloc ((work_area).table, (work_area).allocated); \ | |
| 1723 else \ | |
| 1724 (work_area).table \ | |
| 1725 = (int *) malloc ((work_area).allocated); \ | |
| 1726 if ((work_area).table == 0) \ | |
| 1727 FREE_STACK_RETURN (REG_ESPACE); \ | |
| 1728 } \ | |
| 1729 } while (0) | |
| 1730 | |
|
1933
5ffa81ab1988
[emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents:
1660
diff
changeset
|
1731 #define SET_RANGE_TABLE_WORK_AREA_BIT(work_area, bit) \ |
|
5ffa81ab1988
[emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents:
1660
diff
changeset
|
1732 (work_area).bits |= (bit) |
|
5ffa81ab1988
[emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents:
1660
diff
changeset
|
1733 |
|
5ffa81ab1988
[emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents:
1660
diff
changeset
|
1734 /* These bits represent the various character classes such as [:alnum:] |
|
5ffa81ab1988
[emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents:
1660
diff
changeset
|
1735 in a charset's range table. */ |
|
5ffa81ab1988
[emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents:
1660
diff
changeset
|
1736 #define BIT_ALNUM 0x1 |
|
5ffa81ab1988
[emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents:
1660
diff
changeset
|
1737 #define BIT_ALPHA 0x2 |
|
5ffa81ab1988
[emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents:
1660
diff
changeset
|
1738 #define BIT_WORD 0x4 |
|
1965
058a9ce57dd7
1999-09-04 Richard Stallman <rms@gnu.org>
Dave Love <fx@gnu.org>
parents:
1933
diff
changeset
|
1739 #define BIT_ASCII 0x8 |
|
058a9ce57dd7
1999-09-04 Richard Stallman <rms@gnu.org>
Dave Love <fx@gnu.org>
parents:
1933
diff
changeset
|
1740 #define BIT_NONASCII 0x10 |
|
1933
5ffa81ab1988
[emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents:
1660
diff
changeset
|
1741 #define BIT_GRAPH 0x20 |
|
5ffa81ab1988
[emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents:
1660
diff
changeset
|
1742 #define BIT_LOWER 0x40 |
|
5ffa81ab1988
[emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents:
1660
diff
changeset
|
1743 #define BIT_PRINT 0x80 |
|
5ffa81ab1988
[emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents:
1660
diff
changeset
|
1744 #define BIT_PUNCT 0x100 |
|
5ffa81ab1988
[emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents:
1660
diff
changeset
|
1745 #define BIT_SPACE 0x200 |
|
5ffa81ab1988
[emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents:
1660
diff
changeset
|
1746 #define BIT_UPPER 0x400 |
|
1965
058a9ce57dd7
1999-09-04 Richard Stallman <rms@gnu.org>
Dave Love <fx@gnu.org>
parents:
1933
diff
changeset
|
1747 #define BIT_UNIBYTE 0x800 |
|
058a9ce57dd7
1999-09-04 Richard Stallman <rms@gnu.org>
Dave Love <fx@gnu.org>
parents:
1933
diff
changeset
|
1748 #define BIT_MULTIBYTE 0x1000 |
|
1933
5ffa81ab1988
[emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents:
1660
diff
changeset
|
1749 |
| 939 | 1750 /* Set a range (RANGE_START, RANGE_END) to WORK_AREA. */ |
| 1751 #define SET_RANGE_TABLE_WORK_AREA(work_area, range_start, range_end) \ | |
| 1752 do { \ | |
| 1753 EXTEND_RANGE_TABLE_WORK_AREA ((work_area), 2); \ | |
| 1754 (work_area).table[(work_area).used++] = (range_start); \ | |
| 1755 (work_area).table[(work_area).used++] = (range_end); \ | |
| 1756 } while (0) | |
| 1757 | |
| 941 | 1758 /* Free allocated memory for WORK_AREA. */ |
| 939 | 1759 #define FREE_RANGE_TABLE_WORK_AREA(work_area) \ |
| 1760 do { \ | |
| 1761 if ((work_area).table) \ | |
| 1762 free ((work_area).table); \ | |
| 1763 } while (0) | |
| 1764 | |
|
1933
5ffa81ab1988
[emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents:
1660
diff
changeset
|
1765 #define CLEAR_RANGE_TABLE_WORK_USED(work_area) ((work_area).used = 0, (work_area).bits = 0) |
| 939 | 1766 #define RANGE_TABLE_WORK_USED(work_area) ((work_area).used) |
|
1933
5ffa81ab1988
[emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents:
1660
diff
changeset
|
1767 #define RANGE_TABLE_WORK_BITS(work_area) ((work_area).bits) |
| 939 | 1768 #define RANGE_TABLE_WORK_ELT(work_area, i) ((work_area).table[i]) |
| 1769 | |
| 1770 | |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1771 /* Set the bit for character C in a list. */ |
| 941 | 1772 #define SET_LIST_BIT(c) \ |
| 1773 (b[((unsigned char) (c)) / BYTEWIDTH] \ | |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1774 |= 1 << (((unsigned char) c) % BYTEWIDTH)) |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1775 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1776 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1777 /* Get the next unsigned number in the uncompiled pattern. */ |
| 941 | 1778 #define GET_UNSIGNED_NUMBER(num) \ |
|
2350
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2349
diff
changeset
|
1779 do { if (p != pend) \ |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1780 { \ |
| 941 | 1781 PATFETCH (c); \ |
| 1782 while (ISDIGIT (c)) \ | |
| 1783 { \ | |
| 1784 if (num < 0) \ | |
| 1785 num = 0; \ | |
| 1786 num = num * 10 + c - '0'; \ | |
| 1787 if (p == pend) \ | |
| 1788 break; \ | |
| 1789 PATFETCH (c); \ | |
| 1790 } \ | |
| 1791 } \ | |
|
2350
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2349
diff
changeset
|
1792 } while (0) |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1793 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1794 #define CHAR_CLASS_MAX_LENGTH 6 /* Namely, `xdigit'. */ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1795 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1796 #define IS_CHAR_CLASS(string) \ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1797 (STREQ (string, "alpha") || STREQ (string, "upper") \ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1798 || STREQ (string, "lower") || STREQ (string, "digit") \ |
|
403b2dfdfa0b
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|
1799 || STREQ (string, "alnum") || STREQ (string, "xdigit") \ |
|
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|
1800 || STREQ (string, "space") || STREQ (string, "print") \ |
|
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Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
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diff
changeset
|
1801 || STREQ (string, "punct") || STREQ (string, "graph") \ |
|
1933
5ffa81ab1988
[emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents:
1660
diff
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|
1802 || STREQ (string, "cntrl") || STREQ (string, "blank") \ |
|
1965
058a9ce57dd7
1999-09-04 Richard Stallman <rms@gnu.org>
Dave Love <fx@gnu.org>
parents:
1933
diff
changeset
|
1803 || STREQ (string, "word") \ |
|
058a9ce57dd7
1999-09-04 Richard Stallman <rms@gnu.org>
Dave Love <fx@gnu.org>
parents:
1933
diff
changeset
|
1804 || STREQ (string, "ascii") || STREQ (string, "nonascii") \ |
|
058a9ce57dd7
1999-09-04 Richard Stallman <rms@gnu.org>
Dave Love <fx@gnu.org>
parents:
1933
diff
changeset
|
1805 || STREQ (string, "unibyte") || STREQ (string, "multibyte")) |
|
2350
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
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|
1806 |
|
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
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|
1807 /* QUIT is only used on NTemacs. */ |
|
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
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diff
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|
1808 #if !defined (WINDOWSNT) || !defined (emacs) |
|
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
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|
1809 #undef QUIT |
|
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
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|
1810 #define QUIT |
|
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
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|
1811 #endif |
|
441
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Roland McGrath <roland@gnu.org>
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|
1812 |
|
403b2dfdfa0b
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diff
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|
1813 #ifndef MATCH_MAY_ALLOCATE |
|
403b2dfdfa0b
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Roland McGrath <roland@gnu.org>
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diff
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|
1814 |
|
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Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
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diff
changeset
|
1815 /* If we cannot allocate large objects within re_match_2_internal, |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
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diff
changeset
|
1816 we make the fail stack and register vectors global. |
|
403b2dfdfa0b
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Roland McGrath <roland@gnu.org>
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diff
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|
1817 The fail stack, we grow to the maximum size when a regexp |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
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diff
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|
1818 is compiled. |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
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diff
changeset
|
1819 The register vectors, we adjust in size each time we |
|
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|
1820 compile a regexp, according to the number of registers it needs. */ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
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|
1821 |
|
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Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
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diff
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|
1822 static fail_stack_type fail_stack; |
|
403b2dfdfa0b
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|
1823 |
|
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Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
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diff
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|
1824 /* Size with which the following vectors are currently allocated. |
|
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Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
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diff
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|
1825 That is so we can make them bigger as needed, |
| 941 | 1826 but never make them smaller. */ |
|
441
403b2dfdfa0b
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Roland McGrath <roland@gnu.org>
parents:
438
diff
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|
1827 static int regs_allocated_size; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
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diff
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|
1828 |
|
2349
5fa185a9956e
* regex.c: Declare a new type `re_char' used throughout the code for the
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
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diff
changeset
|
1829 static re_char ** regstart, ** regend; |
|
5fa185a9956e
* regex.c: Declare a new type `re_char' used throughout the code for the
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
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|
1830 static re_char **best_regstart, **best_regend; |
|
441
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Roland McGrath <roland@gnu.org>
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|
1831 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
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438
diff
changeset
|
1832 /* Make the register vectors big enough for NUM_REGS registers, |
| 941 | 1833 but don't make them smaller. */ |
|
441
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Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
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diff
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|
1834 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
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diff
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|
1835 static |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1836 regex_grow_registers (num_regs) |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
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parents:
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diff
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|
1837 int num_regs; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
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diff
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|
1838 { |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
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diff
changeset
|
1839 if (num_regs > regs_allocated_size) |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
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diff
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|
1840 { |
|
2349
5fa185a9956e
* regex.c: Declare a new type `re_char' used throughout the code for the
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parents:
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diff
changeset
|
1841 RETALLOC_IF (regstart, num_regs, re_char *); |
|
5fa185a9956e
* regex.c: Declare a new type `re_char' used throughout the code for the
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
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diff
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|
1842 RETALLOC_IF (regend, num_regs, re_char *); |
|
5fa185a9956e
* regex.c: Declare a new type `re_char' used throughout the code for the
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
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changeset
|
1843 RETALLOC_IF (best_regstart, num_regs, re_char *); |
|
5fa185a9956e
* regex.c: Declare a new type `re_char' used throughout the code for the
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
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|
1844 RETALLOC_IF (best_regend, num_regs, re_char *); |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
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|
1845 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
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|
1846 regs_allocated_size = num_regs; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
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|
1847 } |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
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diff
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|
1848 } |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
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diff
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|
1849 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
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diff
changeset
|
1850 #endif /* not MATCH_MAY_ALLOCATE */ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
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438
diff
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|
1851 |
|
2350
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2349
diff
changeset
|
1852 static boolean group_in_compile_stack _RE_ARGS ((compile_stack_type |
|
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2349
diff
changeset
|
1853 compile_stack, |
|
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2349
diff
changeset
|
1854 regnum_t regnum)); |
|
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
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diff
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|
1855 |
|
441
403b2dfdfa0b
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Roland McGrath <roland@gnu.org>
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diff
changeset
|
1856 /* `regex_compile' compiles PATTERN (of length SIZE) according to SYNTAX. |
|
403b2dfdfa0b
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Roland McGrath <roland@gnu.org>
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diff
changeset
|
1857 Returns one of error codes defined in `regex.h', or zero for success. |
|
403b2dfdfa0b
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Roland McGrath <roland@gnu.org>
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diff
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|
1858 |
|
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Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
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diff
changeset
|
1859 Assumes the `allocated' (and perhaps `buffer') and `translate' |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
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|
1860 fields are set in BUFP on entry. |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
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438
diff
changeset
|
1861 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
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|
1862 If it succeeds, results are put in BUFP (if it returns an error, the |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
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diff
changeset
|
1863 contents of BUFP are undefined): |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1864 `buffer' is the compiled pattern; |
|
403b2dfdfa0b
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parents:
438
diff
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|
1865 `syntax' is set to SYNTAX; |
|
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Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
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438
diff
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|
1866 `used' is set to the length of the compiled pattern; |
|
403b2dfdfa0b
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438
diff
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|
1867 `fastmap_accurate' is zero; |
|
403b2dfdfa0b
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Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1868 `re_nsub' is the number of subexpressions in PATTERN; |
|
403b2dfdfa0b
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Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
1869 `not_bol' and `not_eol' are zero; |
|
515
69ba3b63e1d1
(gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents:
511
diff
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|
1870 |
|
441
403b2dfdfa0b
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Roland McGrath <roland@gnu.org>
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438
diff
changeset
|
1871 The `fastmap' and `newline_anchor' fields are neither |
|
403b2dfdfa0b
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|
1872 examined nor set. */ |
|
403b2dfdfa0b
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|
1873 |
|
2345
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
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|
1874 /* Insert the `jump' from the end of last alternative to "here". |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
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|
1875 The space for the jump has already been allocated. */ |
|
93d6633849d6
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|
1876 #define FIXUP_ALT_JUMP() \ |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
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|
1877 do { \ |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
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|
1878 if (fixup_alt_jump) \ |
|
93d6633849d6
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|
1879 STORE_JUMP (jump, fixup_alt_jump, b); \ |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
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|
1880 } while (0) |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
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|
1881 |
|
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|
1882 |
|
441
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|
1883 /* Return, freeing storage we allocated. */ |
|
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|
1884 #define FREE_STACK_RETURN(value) \ |
| 939 | 1885 do { \ |
| 1886 FREE_RANGE_TABLE_WORK_AREA (range_table_work); \ | |
| 1887 free (compile_stack.stack); \ | |
| 1888 return value; \ | |
| 1889 } while (0) | |
|
441
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|
1890 |
|
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diff
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|
1891 static reg_errcode_t |
|
403b2dfdfa0b
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diff
changeset
|
1892 regex_compile (pattern, size, syntax, bufp) |
|
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|
1893 re_char *pattern; |
|
441
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diff
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|
1894 int size; |
|
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diff
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|
1895 reg_syntax_t syntax; |
|
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changeset
|
1896 struct re_pattern_buffer *bufp; |
|
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|
1897 { |
|
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diff
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|
1898 /* We fetch characters from PATTERN here. Even though PATTERN is |
|
403b2dfdfa0b
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changeset
|
1899 `char *' (i.e., signed), we declare these variables as unsigned, so |
|
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changeset
|
1900 they can be reliably used as array indices. */ |
| 939 | 1901 register unsigned int c, c1; |
|
515
69ba3b63e1d1
(gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents:
511
diff
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|
1902 |
|
441
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|
1903 /* A random temporary spot in PATTERN. */ |
|
2349
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|
1904 re_char *p1; |
|
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1905 |
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1906 /* Points to the end of the buffer, where we should append. */ |
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1907 register unsigned char *b; |
|
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1908 |
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1909 /* Keeps track of unclosed groups. */ |
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1910 compile_stack_type compile_stack; |
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1911 |
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1912 /* Points to the current (ending) position in the pattern. */ |
|
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1913 #ifdef AIX |
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1914 /* `const' makes AIX compiler fail. */ |
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1915 unsigned char *p = pattern; |
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1916 #else |
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1917 re_char *p = pattern; |
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1918 #endif |
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1919 re_char *pend = pattern + size; |
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1920 |
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1921 /* How to translate the characters in the pattern. */ |
|
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1922 RE_TRANSLATE_TYPE translate = bufp->translate; |
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1923 |
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1924 /* Address of the count-byte of the most recently inserted `exactn' |
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1925 command. This makes it possible to tell if a new exact-match |
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1926 character can be added to that command or if the character requires |
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1927 a new `exactn' command. */ |
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1928 unsigned char *pending_exact = 0; |
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1929 |
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1930 /* Address of start of the most recently finished expression. |
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1931 This tells, e.g., postfix * where to find the start of its |
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1932 operand. Reset at the beginning of groups and alternatives. */ |
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1933 unsigned char *laststart = 0; |
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1934 |
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1935 /* Address of beginning of regexp, or inside of last group. */ |
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1936 unsigned char *begalt; |
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1937 |
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1938 /* Place in the uncompiled pattern (i.e., the {) to |
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1939 which to go back if the interval is invalid. */ |
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1940 re_char *beg_interval; |
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1941 |
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1942 /* Address of the place where a forward jump should go to the end of |
| 941 | 1943 the containing expression. Each alternative of an `or' -- except the |
|
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1944 last -- ends with a forward jump of this sort. */ |
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1945 unsigned char *fixup_alt_jump = 0; |
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1946 |
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1947 /* Counts open-groups as they are encountered. Remembered for the |
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1948 matching close-group on the compile stack, so the same register |
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1949 number is put in the stop_memory as the start_memory. */ |
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1950 regnum_t regnum = 0; |
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1951 |
| 939 | 1952 /* Work area for range table of charset. */ |
| 1953 struct range_table_work_area range_table_work; | |
| 1954 | |
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1955 #ifdef DEBUG |
|
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1956 debug++; |
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1957 DEBUG_PRINT1 ("\nCompiling pattern: "); |
|
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1958 if (debug > 0) |
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1959 { |
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1960 unsigned debug_count; |
|
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1961 |
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1962 for (debug_count = 0; debug_count < size; debug_count++) |
| 941 | 1963 putchar (pattern[debug_count]); |
|
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1964 putchar ('\n'); |
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1965 } |
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1966 #endif /* DEBUG */ |
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1967 |
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1968 /* Initialize the compile stack. */ |
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1969 compile_stack.stack = TALLOC (INIT_COMPILE_STACK_SIZE, compile_stack_elt_t); |
|
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1970 if (compile_stack.stack == NULL) |
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1971 return REG_ESPACE; |
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1972 |
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1973 compile_stack.size = INIT_COMPILE_STACK_SIZE; |
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1974 compile_stack.avail = 0; |
|
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1975 |
| 939 | 1976 range_table_work.table = 0; |
| 1977 range_table_work.allocated = 0; | |
| 1978 | |
|
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1979 /* Initialize the pattern buffer. */ |
|
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1980 bufp->syntax = syntax; |
|
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1981 bufp->fastmap_accurate = 0; |
|
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1982 bufp->not_bol = bufp->not_eol = 0; |
|
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1983 |
|
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1984 /* Set `used' to zero, so that if we return an error, the pattern |
|
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1985 printer (for debugging) will think there's no pattern. We reset it |
|
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1986 at the end. */ |
|
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1987 bufp->used = 0; |
|
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1988 |
|
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1989 /* Always count groups, whether or not bufp->no_sub is set. */ |
|
515
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1990 bufp->re_nsub = 0; |
|
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1991 |
| 939 | 1992 #ifdef emacs |
| 1993 /* bufp->multibyte is set before regex_compile is called, so don't alter | |
| 1994 it. */ | |
| 1995 #else /* not emacs */ | |
| 1996 /* Nothing is recognized as a multibyte character. */ | |
| 1997 bufp->multibyte = 0; | |
| 1998 #endif | |
| 1999 | |
|
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2000 #if !defined (emacs) && !defined (SYNTAX_TABLE) |
|
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2001 /* Initialize the syntax table. */ |
|
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2002 init_syntax_once (); |
|
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2003 #endif |
|
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2004 |
|
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2005 if (bufp->allocated == 0) |
|
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2006 { |
|
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|
2007 if (bufp->buffer) |
|
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|
2008 { /* If zero allocated, but buffer is non-null, try to realloc |
| 941 | 2009 enough space. This loses if buffer's address is bogus, but |
| 2010 that is the user's responsibility. */ | |
| 2011 RETALLOC (bufp->buffer, INIT_BUF_SIZE, unsigned char); | |
| 2012 } | |
|
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|
2013 else |
| 941 | 2014 { /* Caller did not allocate a buffer. Do it for them. */ |
| 2015 bufp->buffer = TALLOC (INIT_BUF_SIZE, unsigned char); | |
| 2016 } | |
|
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|
2017 if (!bufp->buffer) FREE_STACK_RETURN (REG_ESPACE); |
|
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|
2018 |
|
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2019 bufp->allocated = INIT_BUF_SIZE; |
|
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|
2020 } |
|
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|
2021 |
|
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|
2022 begalt = b = bufp->buffer; |
|
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2023 |
|
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|
2024 /* Loop through the uncompiled pattern until we're at the end. */ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
2025 while (p != pend) |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
2026 { |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
2027 PATFETCH (c); |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
2028 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
2029 switch (c) |
| 941 | 2030 { |
| 2031 case '^': | |
| 2032 { | |
| 2033 if ( /* If at start of pattern, it's an operator. */ | |
| 2034 p == pattern + 1 | |
| 2035 /* If context independent, it's an operator. */ | |
| 2036 || syntax & RE_CONTEXT_INDEP_ANCHORS | |
| 2037 /* Otherwise, depends on what's come before. */ | |
| 2038 || at_begline_loc_p (pattern, p, syntax)) | |
| 2039 BUF_PUSH (begline); | |
| 2040 else | |
| 2041 goto normal_char; | |
| 2042 } | |
| 2043 break; | |
| 2044 | |
| 2045 | |
| 2046 case '$': | |
| 2047 { | |
| 2048 if ( /* If at end of pattern, it's an operator. */ | |
| 2049 p == pend | |
| 2050 /* If context independent, it's an operator. */ | |
| 2051 || syntax & RE_CONTEXT_INDEP_ANCHORS | |
| 2052 /* Otherwise, depends on what's next. */ | |
| 2053 || at_endline_loc_p (p, pend, syntax)) | |
| 2054 BUF_PUSH (endline); | |
| 2055 else | |
| 2056 goto normal_char; | |
| 2057 } | |
| 2058 break; | |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
2059 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
2060 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
2061 case '+': |
| 941 | 2062 case '?': |
| 2063 if ((syntax & RE_BK_PLUS_QM) | |
| 2064 || (syntax & RE_LIMITED_OPS)) | |
| 2065 goto normal_char; | |
| 2066 handle_plus: | |
| 2067 case '*': | |
| 2068 /* If there is no previous pattern... */ | |
| 2069 if (!laststart) | |
| 2070 { | |
| 2071 if (syntax & RE_CONTEXT_INVALID_OPS) | |
| 2072 FREE_STACK_RETURN (REG_BADRPT); | |
| 2073 else if (!(syntax & RE_CONTEXT_INDEP_OPS)) | |
| 2074 goto normal_char; | |
| 2075 } | |
| 2076 | |
| 2077 { | |
| 2078 /* 1 means zero (many) matches is allowed. */ | |
|
2349
5fa185a9956e
* regex.c: Declare a new type `re_char' used throughout the code for the
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2345
diff
changeset
|
2079 boolean zero_times_ok = 0, many_times_ok = 0; |
|
5fa185a9956e
* regex.c: Declare a new type `re_char' used throughout the code for the
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2345
diff
changeset
|
2080 boolean greedy = 1; |
| 941 | 2081 |
| 2082 /* If there is a sequence of repetition chars, collapse it | |
| 2083 down to just one (the right one). We can't combine | |
| 2084 interval operators with these because of, e.g., `a{2}*', | |
| 2085 which should only match an even number of `a's. */ | |
| 2086 | |
| 2087 for (;;) | |
| 2088 { | |
|
2034
00db7733320d
1999-12-15 Kenichi Handa <handa@etl.go.jp>
Dave Love <fx@gnu.org>
parents:
1972
diff
changeset
|
2089 if (!(syntax & RE_ALL_GREEDY) |
|
00db7733320d
1999-12-15 Kenichi Handa <handa@etl.go.jp>
Dave Love <fx@gnu.org>
parents:
1972
diff
changeset
|
2090 && c == '?' && (zero_times_ok || many_times_ok)) |
|
00db7733320d
1999-12-15 Kenichi Handa <handa@etl.go.jp>
Dave Love <fx@gnu.org>
parents:
1972
diff
changeset
|
2091 greedy = 0; |
|
00db7733320d
1999-12-15 Kenichi Handa <handa@etl.go.jp>
Dave Love <fx@gnu.org>
parents:
1972
diff
changeset
|
2092 else |
|
00db7733320d
1999-12-15 Kenichi Handa <handa@etl.go.jp>
Dave Love <fx@gnu.org>
parents:
1972
diff
changeset
|
2093 { |
|
00db7733320d
1999-12-15 Kenichi Handa <handa@etl.go.jp>
Dave Love <fx@gnu.org>
parents:
1972
diff
changeset
|
2094 zero_times_ok |= c != '+'; |
|
00db7733320d
1999-12-15 Kenichi Handa <handa@etl.go.jp>
Dave Love <fx@gnu.org>
parents:
1972
diff
changeset
|
2095 many_times_ok |= c != '?'; |
|
00db7733320d
1999-12-15 Kenichi Handa <handa@etl.go.jp>
Dave Love <fx@gnu.org>
parents:
1972
diff
changeset
|
2096 } |
| 941 | 2097 |
| 2098 if (p == pend) | |
| 2099 break; | |
| 2100 | |
| 2101 PATFETCH (c); | |
| 2102 | |
| 2103 if (c == '*' | |
| 2104 || (!(syntax & RE_BK_PLUS_QM) && (c == '+' || c == '?'))) | |
| 2105 ; | |
| 2106 | |
| 2107 else if (syntax & RE_BK_PLUS_QM && c == '\\') | |
| 2108 { | |
| 2109 if (p == pend) FREE_STACK_RETURN (REG_EESCAPE); | |
| 2110 | |
| 2111 PATFETCH (c1); | |
| 2112 if (!(c1 == '+' || c1 == '?')) | |
| 2113 { | |
| 2114 PATUNFETCH; | |
| 2115 PATUNFETCH; | |
| 2116 break; | |
| 2117 } | |
| 2118 | |
| 2119 c = c1; | |
| 2120 } | |
| 2121 else | |
| 2122 { | |
| 2123 PATUNFETCH; | |
| 2124 break; | |
| 2125 } | |
| 2126 | |
| 2127 /* If we get here, we found another repeat character. */ | |
|
2350
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2349
diff
changeset
|
2128 } |
| 941 | 2129 |
| 2130 /* Star, etc. applied to an empty pattern is equivalent | |
| 2131 to an empty pattern. */ | |
|
2355
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
2132 if (!laststart || laststart == b) |
| 941 | 2133 break; |
| 2134 | |
| 2135 /* Now we know whether or not zero matches is allowed | |
| 2136 and also whether or not two or more matches is allowed. */ | |
|
2034
00db7733320d
1999-12-15 Kenichi Handa <handa@etl.go.jp>
Dave Love <fx@gnu.org>
parents:
1972
diff
changeset
|
2137 if (greedy) |
|
00db7733320d
1999-12-15 Kenichi Handa <handa@etl.go.jp>
Dave Love <fx@gnu.org>
parents:
1972
diff
changeset
|
2138 { |
|
2350
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2349
diff
changeset
|
2139 if (many_times_ok) |
|
2355
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
2140 { |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
2141 boolean simple = skip_one_char (laststart) == b; |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
2142 unsigned int startoffset = 0; |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
2143 assert (skip_one_char (laststart) <= b); |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
2144 |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
2145 if (!zero_times_ok && simple) |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
2146 { /* Since simple * loops can be made faster by using |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
2147 on_failure_keep_string_jump, we turn simple P+ |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
2148 into PP* if P is simple. */ |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
2149 unsigned char *p1, *p2; |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
2150 startoffset = b - laststart; |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
2151 GET_BUFFER_SPACE (startoffset); |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
2152 p1 = b; p2 = laststart; |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
2153 while (p2 < p1) |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
2154 *b++ = *p2++; |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
2155 zero_times_ok = 1; |
|
2350
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2349
diff
changeset
|
2156 } |
|
2355
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
2157 |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
2158 GET_BUFFER_SPACE (6); |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
2159 if (!zero_times_ok) |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
2160 /* A + loop. */ |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
2161 STORE_JUMP (on_failure_jump_loop, b, b + 6); |
|
2350
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2349
diff
changeset
|
2162 else |
|
2355
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
2163 /* Simple * loops can use on_failure_keep_string_jump |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
2164 depending on what follows. But since we don't know |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
2165 that yet, we leave the decision up to |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
2166 on_failure_jump_smart. */ |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
2167 INSERT_JUMP (simple ? on_failure_jump_smart |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
2168 : on_failure_jump_loop, |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
2169 laststart + startoffset, b + 6); |
|
2350
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2349
diff
changeset
|
2170 b += 3; |
|
2355
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
2171 STORE_JUMP (jump, b, laststart + startoffset); |
|
2350
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2349
diff
changeset
|
2172 b += 3; |
| 941 | 2173 } |
| 2174 else | |
|
2350
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2349
diff
changeset
|
2175 { |
|
2355
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
2176 /* A simple ? pattern. */ |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
2177 assert (zero_times_ok); |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
2178 GET_BUFFER_SPACE (3); |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
2179 INSERT_JUMP (on_failure_jump, laststart, b + 3); |
|
2350
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2349
diff
changeset
|
2180 b += 3; |
|
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2349
diff
changeset
|
2181 } |
|
2034
00db7733320d
1999-12-15 Kenichi Handa <handa@etl.go.jp>
Dave Love <fx@gnu.org>
parents:
1972
diff
changeset
|
2182 } |
|
00db7733320d
1999-12-15 Kenichi Handa <handa@etl.go.jp>
Dave Love <fx@gnu.org>
parents:
1972
diff
changeset
|
2183 else /* not greedy */ |
|
00db7733320d
1999-12-15 Kenichi Handa <handa@etl.go.jp>
Dave Love <fx@gnu.org>
parents:
1972
diff
changeset
|
2184 { /* I wish the greedy and non-greedy cases could be merged. */ |
|
00db7733320d
1999-12-15 Kenichi Handa <handa@etl.go.jp>
Dave Love <fx@gnu.org>
parents:
1972
diff
changeset
|
2185 |
|
00db7733320d
1999-12-15 Kenichi Handa <handa@etl.go.jp>
Dave Love <fx@gnu.org>
parents:
1972
diff
changeset
|
2186 if (many_times_ok) |
|
00db7733320d
1999-12-15 Kenichi Handa <handa@etl.go.jp>
Dave Love <fx@gnu.org>
parents:
1972
diff
changeset
|
2187 { |
|
2345
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
2188 /* The non-greedy multiple match looks like a repeat..until: |
|
2034
00db7733320d
1999-12-15 Kenichi Handa <handa@etl.go.jp>
Dave Love <fx@gnu.org>
parents:
1972
diff
changeset
|
2189 we only need a conditional jump at the end of the loop */ |
|
00db7733320d
1999-12-15 Kenichi Handa <handa@etl.go.jp>
Dave Love <fx@gnu.org>
parents:
1972
diff
changeset
|
2190 GET_BUFFER_SPACE (3); |
|
00db7733320d
1999-12-15 Kenichi Handa <handa@etl.go.jp>
Dave Love <fx@gnu.org>
parents:
1972
diff
changeset
|
2191 STORE_JUMP (on_failure_jump, b, laststart); |
|
00db7733320d
1999-12-15 Kenichi Handa <handa@etl.go.jp>
Dave Love <fx@gnu.org>
parents:
1972
diff
changeset
|
2192 b += 3; |
|
00db7733320d
1999-12-15 Kenichi Handa <handa@etl.go.jp>
Dave Love <fx@gnu.org>
parents:
1972
diff
changeset
|
2193 if (zero_times_ok) |
|
00db7733320d
1999-12-15 Kenichi Handa <handa@etl.go.jp>
Dave Love <fx@gnu.org>
parents:
1972
diff
changeset
|
2194 { |
|
00db7733320d
1999-12-15 Kenichi Handa <handa@etl.go.jp>
Dave Love <fx@gnu.org>
parents:
1972
diff
changeset
|
2195 /* The repeat...until naturally matches one or more. |
|
00db7733320d
1999-12-15 Kenichi Handa <handa@etl.go.jp>
Dave Love <fx@gnu.org>
parents:
1972
diff
changeset
|
2196 To also match zero times, we need to first jump to |
|
00db7733320d
1999-12-15 Kenichi Handa <handa@etl.go.jp>
Dave Love <fx@gnu.org>
parents:
1972
diff
changeset
|
2197 the end of the loop (its conditional jump). */ |
|
00db7733320d
1999-12-15 Kenichi Handa <handa@etl.go.jp>
Dave Love <fx@gnu.org>
parents:
1972
diff
changeset
|
2198 GET_BUFFER_SPACE (3); |
|
00db7733320d
1999-12-15 Kenichi Handa <handa@etl.go.jp>
Dave Love <fx@gnu.org>
parents:
1972
diff
changeset
|
2199 INSERT_JUMP (jump, laststart, b); |
|
00db7733320d
1999-12-15 Kenichi Handa <handa@etl.go.jp>
Dave Love <fx@gnu.org>
parents:
1972
diff
changeset
|
2200 b += 3; |
|
00db7733320d
1999-12-15 Kenichi Handa <handa@etl.go.jp>
Dave Love <fx@gnu.org>
parents:
1972
diff
changeset
|
2201 } |
|
00db7733320d
1999-12-15 Kenichi Handa <handa@etl.go.jp>
Dave Love <fx@gnu.org>
parents:
1972
diff
changeset
|
2202 } |
|
00db7733320d
1999-12-15 Kenichi Handa <handa@etl.go.jp>
Dave Love <fx@gnu.org>
parents:
1972
diff
changeset
|
2203 else |
|
00db7733320d
1999-12-15 Kenichi Handa <handa@etl.go.jp>
Dave Love <fx@gnu.org>
parents:
1972
diff
changeset
|
2204 { |
|
00db7733320d
1999-12-15 Kenichi Handa <handa@etl.go.jp>
Dave Love <fx@gnu.org>
parents:
1972
diff
changeset
|
2205 /* non-greedy a?? */ |
|
00db7733320d
1999-12-15 Kenichi Handa <handa@etl.go.jp>
Dave Love <fx@gnu.org>
parents:
1972
diff
changeset
|
2206 GET_BUFFER_SPACE (6); |
|
00db7733320d
1999-12-15 Kenichi Handa <handa@etl.go.jp>
Dave Love <fx@gnu.org>
parents:
1972
diff
changeset
|
2207 INSERT_JUMP (jump, laststart, b + 3); |
|
00db7733320d
1999-12-15 Kenichi Handa <handa@etl.go.jp>
Dave Love <fx@gnu.org>
parents:
1972
diff
changeset
|
2208 b += 3; |
|
00db7733320d
1999-12-15 Kenichi Handa <handa@etl.go.jp>
Dave Love <fx@gnu.org>
parents:
1972
diff
changeset
|
2209 INSERT_JUMP (on_failure_jump, laststart, laststart + 6); |
|
00db7733320d
1999-12-15 Kenichi Handa <handa@etl.go.jp>
Dave Love <fx@gnu.org>
parents:
1972
diff
changeset
|
2210 b += 3; |
|
00db7733320d
1999-12-15 Kenichi Handa <handa@etl.go.jp>
Dave Love <fx@gnu.org>
parents:
1972
diff
changeset
|
2211 } |
|
00db7733320d
1999-12-15 Kenichi Handa <handa@etl.go.jp>
Dave Love <fx@gnu.org>
parents:
1972
diff
changeset
|
2212 } |
|
00db7733320d
1999-12-15 Kenichi Handa <handa@etl.go.jp>
Dave Love <fx@gnu.org>
parents:
1972
diff
changeset
|
2213 } |
|
2355
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
2214 pending_exact = 0; |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
2215 break; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
2216 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
2217 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
2218 case '.': |
| 941 | 2219 laststart = b; |
| 2220 BUF_PUSH (anychar); | |
| 2221 break; | |
| 2222 | |
| 2223 | |
| 2224 case '[': | |
| 2225 { | |
| 939 | 2226 CLEAR_RANGE_TABLE_WORK_USED (range_table_work); |
| 2227 | |
| 941 | 2228 if (p == pend) FREE_STACK_RETURN (REG_EBRACK); |
| 2229 | |
| 2230 /* Ensure that we have enough space to push a charset: the | |
| 2231 opcode, the length count, and the bitset; 34 bytes in all. */ | |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
2232 GET_BUFFER_SPACE (34); |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
2233 |
| 941 | 2234 laststart = b; |
| 2235 | |
| 2236 /* We test `*p == '^' twice, instead of using an if | |
| 2237 statement, so we only need one BUF_PUSH. */ | |
| 2238 BUF_PUSH (*p == '^' ? charset_not : charset); | |
| 2239 if (*p == '^') | |
| 2240 p++; | |
| 2241 | |
| 2242 /* Remember the first position in the bracket expression. */ | |
| 2243 p1 = p; | |
| 2244 | |
| 2245 /* Push the number of bytes in the bitmap. */ | |
| 2246 BUF_PUSH ((1 << BYTEWIDTH) / BYTEWIDTH); | |
| 2247 | |
| 2248 /* Clear the whole map. */ | |
| 2249 bzero (b, (1 << BYTEWIDTH) / BYTEWIDTH); | |
| 2250 | |
| 2251 /* charset_not matches newline according to a syntax bit. */ | |
| 2252 if ((re_opcode_t) b[-2] == charset_not | |
| 2253 && (syntax & RE_HAT_LISTS_NOT_NEWLINE)) | |
| 2254 SET_LIST_BIT ('\n'); | |
| 2255 | |
| 2256 /* Read in characters and ranges, setting map bits. */ | |
| 2257 for (;;) | |
| 2258 { | |
| 939 | 2259 int len; |
| 2260 boolean escaped_char = false; | |
| 2261 | |
| 941 | 2262 if (p == pend) FREE_STACK_RETURN (REG_EBRACK); |
| 2263 | |
| 2264 PATFETCH (c); | |
| 2265 | |
| 2266 /* \ might escape characters inside [...] and [^...]. */ | |
| 2267 if ((syntax & RE_BACKSLASH_ESCAPE_IN_LISTS) && c == '\\') | |
| 2268 { | |
| 2269 if (p == pend) FREE_STACK_RETURN (REG_EESCAPE); | |
| 679 | 2270 |
| 2271 PATFETCH (c); | |
| 939 | 2272 escaped_char = true; |
| 941 | 2273 } |
| 939 | 2274 else |
| 2275 { | |
| 992 | 2276 /* Could be the end of the bracket expression. If it's |
| 2277 not (i.e., when the bracket expression is `[]' so | |
| 2278 far), the ']' character bit gets set way below. */ | |
| 2279 if (c == ']' && p != p1 + 1) | |
| 2280 break; | |
| 941 | 2281 } |
| 939 | 2282 |
| 2283 /* If C indicates start of multibyte char, get the | |
| 2284 actual character code in C, and set the pattern | |
| 2285 pointer P to the next character boundary. */ | |
| 2286 if (bufp->multibyte && BASE_LEADING_CODE_P (c)) | |
| 2287 { | |
| 2288 PATUNFETCH; | |
| 2289 c = STRING_CHAR_AND_LENGTH (p, pend - p, len); | |
| 2290 p += len; | |
| 941 | 2291 } |
| 939 | 2292 /* What should we do for the character which is |
| 2293 greater than 0x7F, but not BASE_LEADING_CODE_P? | |
| 2294 XXX */ | |
| 2295 | |
| 941 | 2296 /* See if we're at the beginning of a possible character |
| 2297 class. */ | |
| 939 | 2298 |
| 2299 else if (!escaped_char && | |
| 2300 syntax & RE_CHAR_CLASSES && c == '[' && *p == ':') | |
| 992 | 2301 { |
| 2302 /* Leave room for the null. */ | |
| 941 | 2303 char str[CHAR_CLASS_MAX_LENGTH + 1]; |
| 2304 | |
| 2305 PATFETCH (c); | |
| 2306 c1 = 0; | |
| 2307 | |
| 2308 /* If pattern is `[[:'. */ | |
| 2309 if (p == pend) FREE_STACK_RETURN (REG_EBRACK); | |
| 2310 | |
| 2311 for (;;) | |
| 2312 { | |
| 2313 PATFETCH (c); | |
| 2314 if (c == ':' || c == ']' || p == pend | |
| 2315 || c1 == CHAR_CLASS_MAX_LENGTH) | |
| 2316 break; | |
| 2317 str[c1++] = c; | |
| 2318 } | |
| 2319 str[c1] = '\0'; | |
| 939 | 2320 |
| 2321 /* If isn't a word bracketed by `[:' and `:]': | |
| 2322 undo the ending character, the letters, and | |
| 2323 leave the leading `:' and `[' (but set bits for | |
| 2324 them). */ | |
| 941 | 2325 if (c == ':' && *p == ']') |
| 2326 { | |
| 2327 int ch; | |
| 2328 boolean is_alnum = STREQ (str, "alnum"); | |
| 2329 boolean is_alpha = STREQ (str, "alpha"); | |
|
1965
058a9ce57dd7
1999-09-04 Richard Stallman <rms@gnu.org>
Dave Love <fx@gnu.org>
parents:
1933
diff
changeset
|
2330 boolean is_ascii = STREQ (str, "ascii"); |
| 941 | 2331 boolean is_blank = STREQ (str, "blank"); |
| 2332 boolean is_cntrl = STREQ (str, "cntrl"); | |
| 2333 boolean is_digit = STREQ (str, "digit"); | |
| 2334 boolean is_graph = STREQ (str, "graph"); | |
| 2335 boolean is_lower = STREQ (str, "lower"); | |
|
1965
058a9ce57dd7
1999-09-04 Richard Stallman <rms@gnu.org>
Dave Love <fx@gnu.org>
parents:
1933
diff
changeset
|
2336 boolean is_multibyte = STREQ (str, "multibyte"); |
|
058a9ce57dd7
1999-09-04 Richard Stallman <rms@gnu.org>
Dave Love <fx@gnu.org>
parents:
1933
diff
changeset
|
2337 boolean is_nonascii = STREQ (str, "nonascii"); |
| 941 | 2338 boolean is_print = STREQ (str, "print"); |
| 2339 boolean is_punct = STREQ (str, "punct"); | |
| 2340 boolean is_space = STREQ (str, "space"); | |
|
1965
058a9ce57dd7
1999-09-04 Richard Stallman <rms@gnu.org>
Dave Love <fx@gnu.org>
parents:
1933
diff
changeset
|
2341 boolean is_unibyte = STREQ (str, "unibyte"); |
| 941 | 2342 boolean is_upper = STREQ (str, "upper"); |
|
1965
058a9ce57dd7
1999-09-04 Richard Stallman <rms@gnu.org>
Dave Love <fx@gnu.org>
parents:
1933
diff
changeset
|
2343 boolean is_word = STREQ (str, "word"); |
| 941 | 2344 boolean is_xdigit = STREQ (str, "xdigit"); |
| 2345 | |
| 2346 if (!IS_CHAR_CLASS (str)) | |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
2347 FREE_STACK_RETURN (REG_ECTYPE); |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
2348 |
| 941 | 2349 /* Throw away the ] at the end of the character |
| 2350 class. */ | |
| 2351 PATFETCH (c); | |
| 2352 | |
| 2353 if (p == pend) FREE_STACK_RETURN (REG_EBRACK); | |
| 2354 | |
|
1933
5ffa81ab1988
[emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents:
1660
diff
changeset
|
2355 /* Most character classes in a multibyte match |
|
5ffa81ab1988
[emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents:
1660
diff
changeset
|
2356 just set a flag. Exceptions are is_blank, |
|
5ffa81ab1988
[emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents:
1660
diff
changeset
|
2357 is_digit, is_cntrl, and is_xdigit, since |
|
5ffa81ab1988
[emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents:
1660
diff
changeset
|
2358 they can only match ASCII characters. We |
|
5ffa81ab1988
[emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents:
1660
diff
changeset
|
2359 don't need to handle them for multibyte. */ |
|
5ffa81ab1988
[emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents:
1660
diff
changeset
|
2360 |
|
5ffa81ab1988
[emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents:
1660
diff
changeset
|
2361 if (bufp->multibyte) |
|
5ffa81ab1988
[emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents:
1660
diff
changeset
|
2362 { |
|
5ffa81ab1988
[emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents:
1660
diff
changeset
|
2363 int bit = 0; |
|
5ffa81ab1988
[emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents:
1660
diff
changeset
|
2364 |
|
5ffa81ab1988
[emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents:
1660
diff
changeset
|
2365 if (is_alnum) bit = BIT_ALNUM; |
|
5ffa81ab1988
[emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents:
1660
diff
changeset
|
2366 if (is_alpha) bit = BIT_ALPHA; |
|
1965
058a9ce57dd7
1999-09-04 Richard Stallman <rms@gnu.org>
Dave Love <fx@gnu.org>
parents:
1933
diff
changeset
|
2367 if (is_ascii) bit = BIT_ASCII; |
|
1933
5ffa81ab1988
[emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents:
1660
diff
changeset
|
2368 if (is_graph) bit = BIT_GRAPH; |
|
5ffa81ab1988
[emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents:
1660
diff
changeset
|
2369 if (is_lower) bit = BIT_LOWER; |
|
1965
058a9ce57dd7
1999-09-04 Richard Stallman <rms@gnu.org>
Dave Love <fx@gnu.org>
parents:
1933
diff
changeset
|
2370 if (is_multibyte) bit = BIT_MULTIBYTE; |
|
058a9ce57dd7
1999-09-04 Richard Stallman <rms@gnu.org>
Dave Love <fx@gnu.org>
parents:
1933
diff
changeset
|
2371 if (is_nonascii) bit = BIT_NONASCII; |
|
1933
5ffa81ab1988
[emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents:
1660
diff
changeset
|
2372 if (is_print) bit = BIT_PRINT; |
|
5ffa81ab1988
[emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents:
1660
diff
changeset
|
2373 if (is_punct) bit = BIT_PUNCT; |
|
5ffa81ab1988
[emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents:
1660
diff
changeset
|
2374 if (is_space) bit = BIT_SPACE; |
|
1965
058a9ce57dd7
1999-09-04 Richard Stallman <rms@gnu.org>
Dave Love <fx@gnu.org>
parents:
1933
diff
changeset
|
2375 if (is_unibyte) bit = BIT_UNIBYTE; |
|
1933
5ffa81ab1988
[emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents:
1660
diff
changeset
|
2376 if (is_upper) bit = BIT_UPPER; |
|
5ffa81ab1988
[emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents:
1660
diff
changeset
|
2377 if (is_word) bit = BIT_WORD; |
|
5ffa81ab1988
[emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents:
1660
diff
changeset
|
2378 if (bit) |
|
5ffa81ab1988
[emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents:
1660
diff
changeset
|
2379 SET_RANGE_TABLE_WORK_AREA_BIT (range_table_work, |
|
5ffa81ab1988
[emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents:
1660
diff
changeset
|
2380 bit); |
|
5ffa81ab1988
[emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents:
1660
diff
changeset
|
2381 } |
|
5ffa81ab1988
[emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents:
1660
diff
changeset
|
2382 |
|
5ffa81ab1988
[emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents:
1660
diff
changeset
|
2383 /* Handle character classes for ASCII characters. */ |
| 941 | 2384 for (ch = 0; ch < 1 << BYTEWIDTH; ch++) |
| 2385 { | |
|
692
1036844e8833
(regex_compile): Use TRANSLATE before calling SET_LIST_BIT.
Richard Stallman <rms@gnu.org>
parents:
680
diff
changeset
|
2386 int translated = TRANSLATE (ch); |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
2387 /* This was split into 3 if's to |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
2388 avoid an arbitrary limit in some compiler. */ |
| 941 | 2389 if ( (is_alnum && ISALNUM (ch)) |
| 2390 || (is_alpha && ISALPHA (ch)) | |
| 2391 || (is_blank && ISBLANK (ch)) | |
| 2392 || (is_cntrl && ISCNTRL (ch))) | |
|
692
1036844e8833
(regex_compile): Use TRANSLATE before calling SET_LIST_BIT.
Richard Stallman <rms@gnu.org>
parents:
680
diff
changeset
|
2393 SET_LIST_BIT (translated); |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
2394 if ( (is_digit && ISDIGIT (ch)) |
| 941 | 2395 || (is_graph && ISGRAPH (ch)) |
| 2396 || (is_lower && ISLOWER (ch)) | |
| 2397 || (is_print && ISPRINT (ch))) | |
|
692
1036844e8833
(regex_compile): Use TRANSLATE before calling SET_LIST_BIT.
Richard Stallman <rms@gnu.org>
parents:
680
diff
changeset
|
2398 SET_LIST_BIT (translated); |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
2399 if ( (is_punct && ISPUNCT (ch)) |
| 941 | 2400 || (is_space && ISSPACE (ch)) |
| 2401 || (is_upper && ISUPPER (ch)) | |
| 2402 || (is_xdigit && ISXDIGIT (ch))) | |
|
692
1036844e8833
(regex_compile): Use TRANSLATE before calling SET_LIST_BIT.
Richard Stallman <rms@gnu.org>
parents:
680
diff
changeset
|
2403 SET_LIST_BIT (translated); |
|
1965
058a9ce57dd7
1999-09-04 Richard Stallman <rms@gnu.org>
Dave Love <fx@gnu.org>
parents:
1933
diff
changeset
|
2404 if ( (is_ascii && IS_REAL_ASCII (ch)) |
|
058a9ce57dd7
1999-09-04 Richard Stallman <rms@gnu.org>
Dave Love <fx@gnu.org>
parents:
1933
diff
changeset
|
2405 || (is_nonascii && !IS_REAL_ASCII (ch)) |
|
058a9ce57dd7
1999-09-04 Richard Stallman <rms@gnu.org>
Dave Love <fx@gnu.org>
parents:
1933
diff
changeset
|
2406 || (is_unibyte && ISUNIBYTE (ch)) |
|
058a9ce57dd7
1999-09-04 Richard Stallman <rms@gnu.org>
Dave Love <fx@gnu.org>
parents:
1933
diff
changeset
|
2407 || (is_multibyte && !ISUNIBYTE (ch))) |
|
058a9ce57dd7
1999-09-04 Richard Stallman <rms@gnu.org>
Dave Love <fx@gnu.org>
parents:
1933
diff
changeset
|
2408 SET_LIST_BIT (translated); |
|
058a9ce57dd7
1999-09-04 Richard Stallman <rms@gnu.org>
Dave Love <fx@gnu.org>
parents:
1933
diff
changeset
|
2409 |
|
1933
5ffa81ab1988
[emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents:
1660
diff
changeset
|
2410 if ( (is_word && ISWORD (ch))) |
|
5ffa81ab1988
[emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents:
1660
diff
changeset
|
2411 SET_LIST_BIT (translated); |
| 941 | 2412 } |
| 939 | 2413 |
| 2414 /* Repeat the loop. */ | |
| 2415 continue; | |
| 941 | 2416 } |
| 2417 else | |
| 2418 { | |
| 2419 c1++; | |
| 2420 while (c1--) | |
| 2421 PATUNFETCH; | |
| 2422 SET_LIST_BIT ('['); | |
| 939 | 2423 |
| 2424 /* Because the `:' may starts the range, we | |
| 2425 can't simply set bit and repeat the loop. | |
| 941 | 2426 Instead, just set it to C and handle below. */ |
| 939 | 2427 c = ':'; |
| 941 | 2428 } |
| 2429 } | |
| 939 | 2430 |
| 2431 if (p < pend && p[0] == '-' && p[1] != ']') | |
| 2432 { | |
| 2433 | |
| 2434 /* Discard the `-'. */ | |
| 2435 PATFETCH (c1); | |
| 2436 | |
| 2437 /* Fetch the character which ends the range. */ | |
| 2438 PATFETCH (c1); | |
| 2439 if (bufp->multibyte && BASE_LEADING_CODE_P (c1)) | |
| 2440 { | |
| 2441 PATUNFETCH; | |
| 2442 c1 = STRING_CHAR_AND_LENGTH (p, pend - p, len); | |
| 2443 p += len; | |
| 2444 } | |
| 2445 | |
|
1296
7b938cc81ae2
(compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents:
1218
diff
changeset
|
2446 if (SINGLE_BYTE_CHAR_P (c) |
|
7b938cc81ae2
(compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents:
1218
diff
changeset
|
2447 && ! SINGLE_BYTE_CHAR_P (c1)) |
|
7b938cc81ae2
(compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents:
1218
diff
changeset
|
2448 { |
|
7b938cc81ae2
(compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents:
1218
diff
changeset
|
2449 /* Handle a range such as \177-\377 in multibyte mode. |
|
7b938cc81ae2
(compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents:
1218
diff
changeset
|
2450 Split that into two ranges,, |
|
7b938cc81ae2
(compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents:
1218
diff
changeset
|
2451 the low one ending at 0237, and the high one |
|
7b938cc81ae2
(compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents:
1218
diff
changeset
|
2452 starting at ...040. */ |
|
2345
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
2453 /* Unless I'm missing something, |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
2454 this line is useless. -sm |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
2455 int c1_base = (c1 & ~0177) | 040; */ |
|
1296
7b938cc81ae2
(compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents:
1218
diff
changeset
|
2456 SET_RANGE_TABLE_WORK_AREA (range_table_work, c, c1); |
|
7b938cc81ae2
(compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents:
1218
diff
changeset
|
2457 c1 = 0237; |
|
7b938cc81ae2
(compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents:
1218
diff
changeset
|
2458 } |
|
7b938cc81ae2
(compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents:
1218
diff
changeset
|
2459 else if (!SAME_CHARSET_P (c, c1)) |
| 939 | 2460 FREE_STACK_RETURN (REG_ERANGE); |
| 2461 } | |
| 941 | 2462 else |
| 939 | 2463 /* Range from C to C. */ |
| 2464 c1 = c; | |
| 2465 | |
| 2466 /* Set the range ... */ | |
| 2467 if (SINGLE_BYTE_CHAR_P (c)) | |
| 2468 /* ... into bitmap. */ | |
| 941 | 2469 { |
| 939 | 2470 unsigned this_char; |
| 2471 int range_start = c, range_end = c1; | |
| 2472 | |
| 2473 /* If the start is after the end, the range is empty. */ | |
| 2474 if (range_start > range_end) | |
| 2475 { | |
| 2476 if (syntax & RE_NO_EMPTY_RANGES) | |
| 2477 FREE_STACK_RETURN (REG_ERANGE); | |
| 2478 /* Else, repeat the loop. */ | |
| 679 | 2479 } |
| 2480 else | |
| 2481 { | |
| 939 | 2482 for (this_char = range_start; this_char <= range_end; |
| 2483 this_char++) | |
| 2484 SET_LIST_BIT (TRANSLATE (this_char)); | |
|
1296
7b938cc81ae2
(compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents:
1218
diff
changeset
|
2485 } |
| 941 | 2486 } |
| 679 | 2487 else |
| 939 | 2488 /* ... into range table. */ |
| 2489 SET_RANGE_TABLE_WORK_AREA (range_table_work, c, c1); | |
| 679 | 2490 } |
| 2491 | |
| 941 | 2492 /* Discard any (non)matching list bytes that are all 0 at the |
| 2493 end of the map. Decrease the map-length byte too. */ | |
| 2494 while ((int) b[-1] > 0 && b[b[-1] - 1] == 0) | |
| 2495 b[-1]--; | |
| 2496 b += b[-1]; | |
| 939 | 2497 |
|
1933
5ffa81ab1988
[emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents:
1660
diff
changeset
|
2498 /* Build real range table from work area. */ |
|
5ffa81ab1988
[emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents:
1660
diff
changeset
|
2499 if (RANGE_TABLE_WORK_USED (range_table_work) |
|
5ffa81ab1988
[emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents:
1660
diff
changeset
|
2500 || RANGE_TABLE_WORK_BITS (range_table_work)) |
| 939 | 2501 { |
| 2502 int i; | |
| 2503 int used = RANGE_TABLE_WORK_USED (range_table_work); | |
| 2504 | |
| 2505 /* Allocate space for COUNT + RANGE_TABLE. Needs two | |
|
1933
5ffa81ab1988
[emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents:
1660
diff
changeset
|
2506 bytes for flags, two for COUNT, and three bytes for |
|
5ffa81ab1988
[emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents:
1660
diff
changeset
|
2507 each character. */ |
|
5ffa81ab1988
[emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents:
1660
diff
changeset
|
2508 GET_BUFFER_SPACE (4 + used * 3); |
| 939 | 2509 |
| 2510 /* Indicate the existence of range table. */ | |
| 2511 laststart[1] |= 0x80; | |
| 2512 | |
|
1933
5ffa81ab1988
[emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents:
1660
diff
changeset
|
2513 /* Store the character class flag bits into the range table. |
|
5ffa81ab1988
[emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents:
1660
diff
changeset
|
2514 If not in emacs, these flag bits are always 0. */ |
|
5ffa81ab1988
[emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents:
1660
diff
changeset
|
2515 *b++ = RANGE_TABLE_WORK_BITS (range_table_work) & 0xff; |
|
5ffa81ab1988
[emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents:
1660
diff
changeset
|
2516 *b++ = RANGE_TABLE_WORK_BITS (range_table_work) >> 8; |
|
5ffa81ab1988
[emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents:
1660
diff
changeset
|
2517 |
| 939 | 2518 STORE_NUMBER_AND_INCR (b, used / 2); |
| 2519 for (i = 0; i < used; i++) | |
| 2520 STORE_CHARACTER_AND_INCR | |
| 2521 (b, RANGE_TABLE_WORK_ELT (range_table_work, i)); | |
| 2522 } | |
| 941 | 2523 } |
| 2524 break; | |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
2525 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
2526 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
2527 case '(': |
| 941 | 2528 if (syntax & RE_NO_BK_PARENS) |
| 2529 goto handle_open; | |
| 2530 else | |
| 2531 goto normal_char; | |
| 2532 | |
| 2533 | |
| 2534 case ')': | |
| 2535 if (syntax & RE_NO_BK_PARENS) | |
| 2536 goto handle_close; | |
| 2537 else | |
| 2538 goto normal_char; | |
| 2539 | |
| 2540 | |
| 2541 case '\n': | |
| 2542 if (syntax & RE_NEWLINE_ALT) | |
| 2543 goto handle_alt; | |
| 2544 else | |
| 2545 goto normal_char; | |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
2546 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
2547 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
2548 case '|': |
| 941 | 2549 if (syntax & RE_NO_BK_VBAR) |
| 2550 goto handle_alt; | |
| 2551 else | |
| 2552 goto normal_char; | |
| 2553 | |
| 2554 | |
| 2555 case '{': | |
| 2556 if (syntax & RE_INTERVALS && syntax & RE_NO_BK_BRACES) | |
| 2557 goto handle_interval; | |
| 2558 else | |
| 2559 goto normal_char; | |
| 2560 | |
| 2561 | |
| 2562 case '\\': | |
| 2563 if (p == pend) FREE_STACK_RETURN (REG_EESCAPE); | |
| 2564 | |
| 2565 /* Do not translate the character after the \, so that we can | |
| 2566 distinguish, e.g., \B from \b, even if we normally would | |
| 2567 translate, e.g., B to b. */ | |
| 2568 PATFETCH_RAW (c); | |
| 2569 | |
| 2570 switch (c) | |
| 2571 { | |
| 2572 case '(': | |
| 2573 if (syntax & RE_NO_BK_PARENS) | |
| 2574 goto normal_backslash; | |
| 2575 | |
| 2576 handle_open: | |
|
2345
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
2577 { |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
2578 int shy = 0; |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
2579 if (p+1 < pend) |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
2580 { |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
2581 /* Look for a special (?...) construct */ |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
2582 PATFETCH (c); |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
2583 if ((syntax & RE_SHY_GROUPS) && c == '?') |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
2584 { |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
2585 PATFETCH (c); |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
2586 switch (c) |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
2587 { |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
2588 case ':': shy = 1; break; |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
2589 default: |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
2590 /* Only (?:...) is supported right now. */ |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
2591 FREE_STACK_RETURN (REG_BADPAT); |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
2592 } |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
2593 } |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
2594 else PATUNFETCH; |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
2595 } |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
2596 |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
2597 if (!shy) |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
2598 { |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
2599 bufp->re_nsub++; |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
2600 regnum++; |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
2601 } |
| 941 | 2602 |
|
2350
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2349
diff
changeset
|
2603 if (COMPILE_STACK_FULL) |
|
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2349
diff
changeset
|
2604 { |
|
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2349
diff
changeset
|
2605 RETALLOC (compile_stack.stack, compile_stack.size << 1, |
|
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2349
diff
changeset
|
2606 compile_stack_elt_t); |
|
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2349
diff
changeset
|
2607 if (compile_stack.stack == NULL) return REG_ESPACE; |
|
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2349
diff
changeset
|
2608 |
|
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2349
diff
changeset
|
2609 compile_stack.size <<= 1; |
|
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2349
diff
changeset
|
2610 } |
|
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2349
diff
changeset
|
2611 |
|
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2349
diff
changeset
|
2612 /* These are the values to restore when we hit end of this |
|
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2349
diff
changeset
|
2613 group. They are all relative offsets, so that if the |
|
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2349
diff
changeset
|
2614 whole pattern moves because of realloc, they will still |
|
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2349
diff
changeset
|
2615 be valid. */ |
|
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2349
diff
changeset
|
2616 COMPILE_STACK_TOP.begalt_offset = begalt - bufp->buffer; |
|
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2349
diff
changeset
|
2617 COMPILE_STACK_TOP.fixup_alt_jump |
|
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2349
diff
changeset
|
2618 = fixup_alt_jump ? fixup_alt_jump - bufp->buffer + 1 : 0; |
|
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2349
diff
changeset
|
2619 COMPILE_STACK_TOP.laststart_offset = b - bufp->buffer; |
|
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2349
diff
changeset
|
2620 COMPILE_STACK_TOP.regnum = shy ? -regnum : regnum; |
|
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2349
diff
changeset
|
2621 |
|
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2349
diff
changeset
|
2622 /* Do not push a |
|
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2349
diff
changeset
|
2623 start_memory for groups beyond the last one we can |
|
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2349
diff
changeset
|
2624 represent in the compiled pattern. */ |
|
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2349
diff
changeset
|
2625 if (regnum <= MAX_REGNUM && !shy) |
|
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2349
diff
changeset
|
2626 BUF_PUSH_2 (start_memory, regnum); |
|
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2349
diff
changeset
|
2627 |
|
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2349
diff
changeset
|
2628 compile_stack.avail++; |
|
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2349
diff
changeset
|
2629 |
|
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2349
diff
changeset
|
2630 fixup_alt_jump = 0; |
|
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2349
diff
changeset
|
2631 laststart = 0; |
|
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2349
diff
changeset
|
2632 begalt = b; |
|
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2349
diff
changeset
|
2633 /* If we've reached MAX_REGNUM groups, then this open |
|
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2349
diff
changeset
|
2634 won't actually generate any code, so we'll have to |
|
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2349
diff
changeset
|
2635 clear pending_exact explicitly. */ |
|
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2349
diff
changeset
|
2636 pending_exact = 0; |
|
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2349
diff
changeset
|
2637 break; |
|
2345
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
2638 } |
| 941 | 2639 |
| 2640 case ')': | |
| 2641 if (syntax & RE_NO_BK_PARENS) goto normal_backslash; | |
| 2642 | |
| 2643 if (COMPILE_STACK_EMPTY) | |
|
2345
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
2644 { |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
2645 if (syntax & RE_UNMATCHED_RIGHT_PAREN_ORD) |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
2646 goto normal_backslash; |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
2647 else |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
2648 FREE_STACK_RETURN (REG_ERPAREN); |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
2649 } |
| 941 | 2650 |
| 2651 handle_close: | |
|
2345
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
2652 FIXUP_ALT_JUMP (); |
| 941 | 2653 |
| 2654 /* See similar code for backslashed left paren above. */ | |
| 2655 if (COMPILE_STACK_EMPTY) | |
|
2345
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
2656 { |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
2657 if (syntax & RE_UNMATCHED_RIGHT_PAREN_ORD) |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
2658 goto normal_char; |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
2659 else |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
2660 FREE_STACK_RETURN (REG_ERPAREN); |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
2661 } |
| 941 | 2662 |
| 2663 /* Since we just checked for an empty stack above, this | |
| 2664 ``can't happen''. */ | |
| 2665 assert (compile_stack.avail != 0); | |
| 2666 { | |
| 2667 /* We don't just want to restore into `regnum', because | |
| 2668 later groups should continue to be numbered higher, | |
| 2669 as in `(ab)c(de)' -- the second group is #2. */ | |
| 2670 regnum_t this_group_regnum; | |
| 2671 | |
| 2672 compile_stack.avail--; | |
| 2673 begalt = bufp->buffer + COMPILE_STACK_TOP.begalt_offset; | |
| 2674 fixup_alt_jump | |
| 2675 = COMPILE_STACK_TOP.fixup_alt_jump | |
| 2676 ? bufp->buffer + COMPILE_STACK_TOP.fixup_alt_jump - 1 | |
| 2677 : 0; | |
| 2678 laststart = bufp->buffer + COMPILE_STACK_TOP.laststart_offset; | |
| 2679 this_group_regnum = COMPILE_STACK_TOP.regnum; | |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
2680 /* If we've reached MAX_REGNUM groups, then this open |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
2681 won't actually generate any code, so we'll have to |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
2682 clear pending_exact explicitly. */ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
2683 pending_exact = 0; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
2684 |
| 941 | 2685 /* We're at the end of the group, so now we know how many |
| 2686 groups were inside this one. */ | |
|
2345
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
2687 if (this_group_regnum <= MAX_REGNUM && this_group_regnum > 0) |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
2688 BUF_PUSH_2 (stop_memory, this_group_regnum); |
| 941 | 2689 } |
| 2690 break; | |
| 2691 | |
| 2692 | |
| 2693 case '|': /* `\|'. */ | |
| 2694 if (syntax & RE_LIMITED_OPS || syntax & RE_NO_BK_VBAR) | |
| 2695 goto normal_backslash; | |
| 2696 handle_alt: | |
| 2697 if (syntax & RE_LIMITED_OPS) | |
| 2698 goto normal_char; | |
| 2699 | |
| 2700 /* Insert before the previous alternative a jump which | |
| 2701 jumps to this alternative if the former fails. */ | |
| 2702 GET_BUFFER_SPACE (3); | |
| 2703 INSERT_JUMP (on_failure_jump, begalt, b + 6); | |
| 2704 pending_exact = 0; | |
| 2705 b += 3; | |
| 2706 | |
| 2707 /* The alternative before this one has a jump after it | |
| 2708 which gets executed if it gets matched. Adjust that | |
| 2709 jump so it will jump to this alternative's analogous | |
| 2710 jump (put in below, which in turn will jump to the next | |
| 2711 (if any) alternative's such jump, etc.). The last such | |
| 2712 jump jumps to the correct final destination. A picture: | |
| 2713 _____ _____ | |
| 2714 | | | | | |
| 2715 | v | v | |
| 2716 a | b | c | |
| 2717 | |
| 2718 If we are at `b', then fixup_alt_jump right now points to a | |
| 2719 three-byte space after `a'. We'll put in the jump, set | |
| 2720 fixup_alt_jump to right after `b', and leave behind three | |
| 2721 bytes which we'll fill in when we get to after `c'. */ | |
| 2722 | |
|
2345
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
2723 FIXUP_ALT_JUMP (); |
| 941 | 2724 |
| 2725 /* Mark and leave space for a jump after this alternative, | |
| 2726 to be filled in later either by next alternative or | |
| 2727 when know we're at the end of a series of alternatives. */ | |
| 2728 fixup_alt_jump = b; | |
| 2729 GET_BUFFER_SPACE (3); | |
| 2730 b += 3; | |
| 2731 | |
| 2732 laststart = 0; | |
| 2733 begalt = b; | |
| 2734 break; | |
| 2735 | |
| 2736 | |
| 2737 case '{': | |
| 2738 /* If \{ is a literal. */ | |
| 2739 if (!(syntax & RE_INTERVALS) | |
| 2740 /* If we're at `\{' and it's not the open-interval | |
| 2741 operator. */ | |
| 2742 || ((syntax & RE_INTERVALS) && (syntax & RE_NO_BK_BRACES)) | |
| 2743 || (p - 2 == pattern && p == pend)) | |
| 2744 goto normal_backslash; | |
| 2745 | |
| 2746 handle_interval: | |
| 2747 { | |
| 2748 /* If got here, then the syntax allows intervals. */ | |
| 2749 | |
| 2750 /* At least (most) this many matches must be made. */ | |
|
2350
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2349
diff
changeset
|
2751 int lower_bound = 0, upper_bound = -1; |
| 941 | 2752 |
| 2753 beg_interval = p - 1; | |
| 2754 | |
| 2755 if (p == pend) | |
| 2756 { | |
| 2757 if (syntax & RE_NO_BK_BRACES) | |
| 2758 goto unfetch_interval; | |
| 2759 else | |
| 2760 FREE_STACK_RETURN (REG_EBRACE); | |
| 2761 } | |
| 2762 | |
| 2763 GET_UNSIGNED_NUMBER (lower_bound); | |
| 2764 | |
| 2765 if (c == ',') | |
| 2766 { | |
| 2767 GET_UNSIGNED_NUMBER (upper_bound); | |
| 2768 if (upper_bound < 0) upper_bound = RE_DUP_MAX; | |
| 2769 } | |
| 2770 else | |
| 2771 /* Interval such as `{1}' => match exactly once. */ | |
| 2772 upper_bound = lower_bound; | |
| 2773 | |
| 2774 if (lower_bound < 0 || upper_bound > RE_DUP_MAX | |
| 2775 || lower_bound > upper_bound) | |
| 2776 { | |
| 2777 if (syntax & RE_NO_BK_BRACES) | |
| 2778 goto unfetch_interval; | |
| 2779 else | |
| 2780 FREE_STACK_RETURN (REG_BADBR); | |
| 2781 } | |
| 2782 | |
| 2783 if (!(syntax & RE_NO_BK_BRACES)) | |
| 2784 { | |
| 2785 if (c != '\\') FREE_STACK_RETURN (REG_EBRACE); | |
| 2786 | |
| 2787 PATFETCH (c); | |
| 2788 } | |
| 2789 | |
| 2790 if (c != '}') | |
| 2791 { | |
| 2792 if (syntax & RE_NO_BK_BRACES) | |
| 2793 goto unfetch_interval; | |
| 2794 else | |
| 2795 FREE_STACK_RETURN (REG_BADBR); | |
| 2796 } | |
| 2797 | |
| 2798 /* We just parsed a valid interval. */ | |
| 2799 | |
| 2800 /* If it's invalid to have no preceding re. */ | |
| 2801 if (!laststart) | |
| 2802 { | |
| 2803 if (syntax & RE_CONTEXT_INVALID_OPS) | |
| 2804 FREE_STACK_RETURN (REG_BADRPT); | |
| 2805 else if (syntax & RE_CONTEXT_INDEP_OPS) | |
| 2806 laststart = b; | |
| 2807 else | |
| 2808 goto unfetch_interval; | |
| 2809 } | |
| 2810 | |
| 2811 /* If the upper bound is zero, don't want to succeed at | |
| 2812 all; jump from `laststart' to `b + 3', which will be | |
| 2813 the end of the buffer after we insert the jump. */ | |
| 2814 if (upper_bound == 0) | |
| 2815 { | |
| 2816 GET_BUFFER_SPACE (3); | |
| 2817 INSERT_JUMP (jump, laststart, b + 3); | |
| 2818 b += 3; | |
| 2819 } | |
| 2820 | |
| 2821 /* Otherwise, we have a nontrivial interval. When | |
| 2822 we're all done, the pattern will look like: | |
| 2823 set_number_at <jump count> <upper bound> | |
| 2824 set_number_at <succeed_n count> <lower bound> | |
| 2825 succeed_n <after jump addr> <succeed_n count> | |
| 2826 <body of loop> | |
| 2827 jump_n <succeed_n addr> <jump count> | |
| 2828 (The upper bound and `jump_n' are omitted if | |
| 2829 `upper_bound' is 1, though.) */ | |
| 2830 else | |
| 2831 { /* If the upper bound is > 1, we need to insert | |
| 2832 more at the end of the loop. */ | |
| 2833 unsigned nbytes = 10 + (upper_bound > 1) * 10; | |
| 2834 | |
| 2835 GET_BUFFER_SPACE (nbytes); | |
| 2836 | |
| 2837 /* Initialize lower bound of the `succeed_n', even | |
| 2838 though it will be set during matching by its | |
| 2839 attendant `set_number_at' (inserted next), | |
| 2840 because `re_compile_fastmap' needs to know. | |
| 2841 Jump to the `jump_n' we might insert below. */ | |
| 2842 INSERT_JUMP2 (succeed_n, laststart, | |
| 2843 b + 5 + (upper_bound > 1) * 5, | |
| 2844 lower_bound); | |
| 2845 b += 5; | |
| 2846 | |
| 2847 /* Code to initialize the lower bound. Insert | |
| 2848 before the `succeed_n'. The `5' is the last two | |
| 2849 bytes of this `set_number_at', plus 3 bytes of | |
| 2850 the following `succeed_n'. */ | |
| 2851 insert_op2 (set_number_at, laststart, 5, lower_bound, b); | |
| 2852 b += 5; | |
| 2853 | |
| 2854 if (upper_bound > 1) | |
| 2855 { /* More than one repetition is allowed, so | |
| 2856 append a backward jump to the `succeed_n' | |
| 2857 that starts this interval. | |
| 2858 | |
| 2859 When we've reached this during matching, | |
| 2860 we'll have matched the interval once, so | |
| 2861 jump back only `upper_bound - 1' times. */ | |
| 2862 STORE_JUMP2 (jump_n, b, laststart + 5, | |
| 2863 upper_bound - 1); | |
| 2864 b += 5; | |
| 2865 | |
| 2866 /* The location we want to set is the second | |
| 2867 parameter of the `jump_n'; that is `b-2' as | |
| 2868 an absolute address. `laststart' will be | |
| 2869 the `set_number_at' we're about to insert; | |
| 2870 `laststart+3' the number to set, the source | |
| 2871 for the relative address. But we are | |
| 2872 inserting into the middle of the pattern -- | |
| 2873 so everything is getting moved up by 5. | |
| 2874 Conclusion: (b - 2) - (laststart + 3) + 5, | |
| 2875 i.e., b - laststart. | |
| 2876 | |
| 2877 We insert this at the beginning of the loop | |
| 2878 so that if we fail during matching, we'll | |
| 2879 reinitialize the bounds. */ | |
| 2880 insert_op2 (set_number_at, laststart, b - laststart, | |
| 2881 upper_bound - 1, b); | |
| 2882 b += 5; | |
| 2883 } | |
| 2884 } | |
| 2885 pending_exact = 0; | |
| 2886 beg_interval = NULL; | |
| 2887 } | |
| 2888 break; | |
| 2889 | |
| 2890 unfetch_interval: | |
| 2891 /* If an invalid interval, match the characters as literals. */ | |
| 2892 assert (beg_interval); | |
| 2893 p = beg_interval; | |
| 2894 beg_interval = NULL; | |
| 2895 | |
| 2896 /* normal_char and normal_backslash need `c'. */ | |
| 2897 PATFETCH (c); | |
| 2898 | |
| 2899 if (!(syntax & RE_NO_BK_BRACES)) | |
| 2900 { | |
| 2901 if (p > pattern && p[-1] == '\\') | |
| 2902 goto normal_backslash; | |
| 2903 } | |
| 2904 goto normal_char; | |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
2905 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
2906 #ifdef emacs |
| 941 | 2907 /* There is no way to specify the before_dot and after_dot |
| 2908 operators. rms says this is ok. --karl */ | |
| 2909 case '=': | |
| 2910 BUF_PUSH (at_dot); | |
| 2911 break; | |
| 2912 | |
| 2913 case 's': | |
| 2914 laststart = b; | |
| 2915 PATFETCH (c); | |
| 2916 BUF_PUSH_2 (syntaxspec, syntax_spec_code[c]); | |
| 2917 break; | |
| 2918 | |
| 2919 case 'S': | |
| 2920 laststart = b; | |
| 2921 PATFETCH (c); | |
| 2922 BUF_PUSH_2 (notsyntaxspec, syntax_spec_code[c]); | |
| 2923 break; | |
| 939 | 2924 |
| 2925 case 'c': | |
| 679 | 2926 laststart = b; |
| 939 | 2927 PATFETCH_RAW (c); |
| 2928 BUF_PUSH_2 (categoryspec, c); | |
| 679 | 2929 break; |
| 2930 | |
| 939 | 2931 case 'C': |
| 679 | 2932 laststart = b; |
| 939 | 2933 PATFETCH_RAW (c); |
| 2934 BUF_PUSH_2 (notcategoryspec, c); | |
| 679 | 2935 break; |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
2936 #endif /* emacs */ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
2937 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
2938 |
| 941 | 2939 case 'w': |
| 2940 laststart = b; | |
|
2356
d93889e88226
(CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2355
diff
changeset
|
2941 BUF_PUSH_2 (syntaxspec, Sword); |
| 941 | 2942 break; |
| 2943 | |
| 2944 | |
| 2945 case 'W': | |
| 2946 laststart = b; | |
|
2356
d93889e88226
(CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2355
diff
changeset
|
2947 BUF_PUSH_2 (notsyntaxspec, Sword); |
| 941 | 2948 break; |
| 2949 | |
| 2950 | |
| 2951 case '<': | |
| 2952 BUF_PUSH (wordbeg); | |
| 2953 break; | |
| 2954 | |
| 2955 case '>': | |
| 2956 BUF_PUSH (wordend); | |
| 2957 break; | |
| 2958 | |
| 2959 case 'b': | |
| 2960 BUF_PUSH (wordbound); | |
| 2961 break; | |
| 2962 | |
| 2963 case 'B': | |
| 2964 BUF_PUSH (notwordbound); | |
| 2965 break; | |
| 2966 | |
| 2967 case '`': | |
| 2968 BUF_PUSH (begbuf); | |
| 2969 break; | |
| 2970 | |
| 2971 case '\'': | |
| 2972 BUF_PUSH (endbuf); | |
| 2973 break; | |
| 2974 | |
| 2975 case '1': case '2': case '3': case '4': case '5': | |
| 2976 case '6': case '7': case '8': case '9': | |
| 2977 if (syntax & RE_NO_BK_REFS) | |
| 2978 goto normal_char; | |
| 2979 | |
| 2980 c1 = c - '0'; | |
| 2981 | |
| 2982 if (c1 > regnum) | |
| 2983 FREE_STACK_RETURN (REG_ESUBREG); | |
| 2984 | |
| 2985 /* Can't back reference to a subexpression if inside of it. */ | |
| 2986 if (group_in_compile_stack (compile_stack, c1)) | |
| 2987 goto normal_char; | |
| 2988 | |
| 2989 laststart = b; | |
| 2990 BUF_PUSH_2 (duplicate, c1); | |
| 2991 break; | |
| 2992 | |
| 2993 | |
| 2994 case '+': | |
| 2995 case '?': | |
| 2996 if (syntax & RE_BK_PLUS_QM) | |
| 2997 goto handle_plus; | |
| 2998 else | |
| 2999 goto normal_backslash; | |
| 3000 | |
| 3001 default: | |
| 3002 normal_backslash: | |
| 3003 /* You might think it would be useful for \ to mean | |
| 3004 not to translate; but if we don't translate it | |
| 3005 it will never match anything. */ | |
| 3006 c = TRANSLATE (c); | |
| 3007 goto normal_char; | |
| 3008 } | |
| 3009 break; | |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3010 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3011 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3012 default: |
| 941 | 3013 /* Expects the character in `c'. */ |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3014 normal_char: |
| 939 | 3015 p1 = p - 1; /* P1 points the head of C. */ |
| 3016 #ifdef emacs | |
| 3017 if (bufp->multibyte) | |
|
1545
84951ef7a5ed
(regex_compile): Handle translation of multibyte
Karl Heuer <kwzh@gnu.org>
parents:
1440
diff
changeset
|
3018 { |
|
84951ef7a5ed
(regex_compile): Handle translation of multibyte
Karl Heuer <kwzh@gnu.org>
parents:
1440
diff
changeset
|
3019 c = STRING_CHAR (p1, pend - p1); |
|
84951ef7a5ed
(regex_compile): Handle translation of multibyte
Karl Heuer <kwzh@gnu.org>
parents:
1440
diff
changeset
|
3020 c = TRANSLATE (c); |
|
84951ef7a5ed
(regex_compile): Handle translation of multibyte
Karl Heuer <kwzh@gnu.org>
parents:
1440
diff
changeset
|
3021 /* Set P to the next character boundary. */ |
|
84951ef7a5ed
(regex_compile): Handle translation of multibyte
Karl Heuer <kwzh@gnu.org>
parents:
1440
diff
changeset
|
3022 p += MULTIBYTE_FORM_LENGTH (p1, pend - p1) - 1; |
|
84951ef7a5ed
(regex_compile): Handle translation of multibyte
Karl Heuer <kwzh@gnu.org>
parents:
1440
diff
changeset
|
3023 } |
| 939 | 3024 #endif |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3025 /* If no exactn currently being built. */ |
| 941 | 3026 if (!pending_exact |
| 3027 | |
| 3028 /* If last exactn not at current position. */ | |
| 3029 || pending_exact + *pending_exact + 1 != b | |
| 3030 | |
| 3031 /* We have only one byte following the exactn for the count. */ | |
| 939 | 3032 || *pending_exact >= (1 << BYTEWIDTH) - (p - p1) |
| 3033 | |
| 941 | 3034 /* If followed by a repetition operator. */ |
|
1342
e5cbc689bc64
(regex_compile): When checking after exactn
Richard Stallman <rms@gnu.org>
parents:
1335
diff
changeset
|
3035 || (p != pend && (*p == '*' || *p == '^')) |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3036 || ((syntax & RE_BK_PLUS_QM) |
|
1342
e5cbc689bc64
(regex_compile): When checking after exactn
Richard Stallman <rms@gnu.org>
parents:
1335
diff
changeset
|
3037 ? p + 1 < pend && *p == '\\' && (p[1] == '+' || p[1] == '?') |
|
e5cbc689bc64
(regex_compile): When checking after exactn
Richard Stallman <rms@gnu.org>
parents:
1335
diff
changeset
|
3038 : p != pend && (*p == '+' || *p == '?')) |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3039 || ((syntax & RE_INTERVALS) |
| 941 | 3040 && ((syntax & RE_NO_BK_BRACES) |
|
1342
e5cbc689bc64
(regex_compile): When checking after exactn
Richard Stallman <rms@gnu.org>
parents:
1335
diff
changeset
|
3041 ? p != pend && *p == '{' |
|
e5cbc689bc64
(regex_compile): When checking after exactn
Richard Stallman <rms@gnu.org>
parents:
1335
diff
changeset
|
3042 : p + 1 < pend && p[0] == '\\' && p[1] == '{'))) |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3043 { |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3044 /* Start building a new exactn. */ |
|
515
69ba3b63e1d1
(gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents:
511
diff
changeset
|
3045 |
| 941 | 3046 laststart = b; |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3047 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3048 BUF_PUSH_2 (exactn, 0); |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3049 pending_exact = b - 1; |
| 941 | 3050 } |
| 939 | 3051 |
|
1545
84951ef7a5ed
(regex_compile): Handle translation of multibyte
Karl Heuer <kwzh@gnu.org>
parents:
1440
diff
changeset
|
3052 #ifdef emacs |
|
84951ef7a5ed
(regex_compile): Handle translation of multibyte
Karl Heuer <kwzh@gnu.org>
parents:
1440
diff
changeset
|
3053 if (! SINGLE_BYTE_CHAR_P (c)) |
|
84951ef7a5ed
(regex_compile): Handle translation of multibyte
Karl Heuer <kwzh@gnu.org>
parents:
1440
diff
changeset
|
3054 { |
|
2034
00db7733320d
1999-12-15 Kenichi Handa <handa@etl.go.jp>
Dave Love <fx@gnu.org>
parents:
1972
diff
changeset
|
3055 unsigned char str[MAX_MULTIBYTE_LENGTH]; |
|
00db7733320d
1999-12-15 Kenichi Handa <handa@etl.go.jp>
Dave Love <fx@gnu.org>
parents:
1972
diff
changeset
|
3056 int i = CHAR_STRING (c, str); |
|
1545
84951ef7a5ed
(regex_compile): Handle translation of multibyte
Karl Heuer <kwzh@gnu.org>
parents:
1440
diff
changeset
|
3057 int j; |
|
84951ef7a5ed
(regex_compile): Handle translation of multibyte
Karl Heuer <kwzh@gnu.org>
parents:
1440
diff
changeset
|
3058 for (j = 0; j < i; j++) |
|
84951ef7a5ed
(regex_compile): Handle translation of multibyte
Karl Heuer <kwzh@gnu.org>
parents:
1440
diff
changeset
|
3059 { |
|
84951ef7a5ed
(regex_compile): Handle translation of multibyte
Karl Heuer <kwzh@gnu.org>
parents:
1440
diff
changeset
|
3060 BUF_PUSH (str[j]); |
|
84951ef7a5ed
(regex_compile): Handle translation of multibyte
Karl Heuer <kwzh@gnu.org>
parents:
1440
diff
changeset
|
3061 (*pending_exact)++; |
|
84951ef7a5ed
(regex_compile): Handle translation of multibyte
Karl Heuer <kwzh@gnu.org>
parents:
1440
diff
changeset
|
3062 } |
|
84951ef7a5ed
(regex_compile): Handle translation of multibyte
Karl Heuer <kwzh@gnu.org>
parents:
1440
diff
changeset
|
3063 } |
|
84951ef7a5ed
(regex_compile): Handle translation of multibyte
Karl Heuer <kwzh@gnu.org>
parents:
1440
diff
changeset
|
3064 else |
|
84951ef7a5ed
(regex_compile): Handle translation of multibyte
Karl Heuer <kwzh@gnu.org>
parents:
1440
diff
changeset
|
3065 #endif |
| 939 | 3066 { |
|
1296
7b938cc81ae2
(compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents:
1218
diff
changeset
|
3067 BUF_PUSH (c); |
|
7b938cc81ae2
(compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents:
1218
diff
changeset
|
3068 (*pending_exact)++; |
| 939 | 3069 } |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3070 break; |
| 941 | 3071 } /* switch (c) */ |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3072 } /* while p != pend */ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3073 |
|
515
69ba3b63e1d1
(gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents:
511
diff
changeset
|
3074 |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3075 /* Through the pattern now. */ |
|
515
69ba3b63e1d1
(gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents:
511
diff
changeset
|
3076 |
|
2345
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
3077 FIXUP_ALT_JUMP (); |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3078 |
|
515
69ba3b63e1d1
(gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents:
511
diff
changeset
|
3079 if (!COMPILE_STACK_EMPTY) |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3080 FREE_STACK_RETURN (REG_EPAREN); |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3081 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3082 /* If we don't want backtracking, force success |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3083 the first time we reach the end of the compiled pattern. */ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3084 if (syntax & RE_NO_POSIX_BACKTRACKING) |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3085 BUF_PUSH (succeed); |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3086 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3087 free (compile_stack.stack); |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3088 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3089 /* We have succeeded; set the length of the buffer. */ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3090 bufp->used = b - bufp->buffer; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3091 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3092 #ifdef DEBUG |
|
2350
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2349
diff
changeset
|
3093 if (debug > 0) |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3094 { |
|
2345
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
3095 re_compile_fastmap (bufp); |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3096 DEBUG_PRINT1 ("\nCompiled pattern: \n"); |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3097 print_compiled_pattern (bufp); |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3098 } |
|
2350
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2349
diff
changeset
|
3099 debug--; |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3100 #endif /* DEBUG */ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3101 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3102 #ifndef MATCH_MAY_ALLOCATE |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3103 /* Initialize the failure stack to the largest possible stack. This |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3104 isn't necessary unless we're trying to avoid calling alloca in |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3105 the search and match routines. */ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3106 { |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3107 int num_regs = bufp->re_nsub + 1; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3108 |
|
1156
8e1cbb305ddc
(TYPICAL_FAILURE_SIZE): Renamed from MAX_FAILURE_ITEMS.
Karl Heuer <kwzh@gnu.org>
parents:
992
diff
changeset
|
3109 if (fail_stack.size < re_max_failures * TYPICAL_FAILURE_SIZE) |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3110 { |
|
1297
ac5117571763
(regex_compile) [!MATCH_MAY_ALLOCATE]: Fix paren error.
Richard Stallman <rms@gnu.org>
parents:
1296
diff
changeset
|
3111 fail_stack.size = re_max_failures * TYPICAL_FAILURE_SIZE; |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3112 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3113 if (! fail_stack.stack) |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3114 fail_stack.stack |
|
515
69ba3b63e1d1
(gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents:
511
diff
changeset
|
3115 = (fail_stack_elt_t *) malloc (fail_stack.size |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3116 * sizeof (fail_stack_elt_t)); |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3117 else |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3118 fail_stack.stack |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3119 = (fail_stack_elt_t *) realloc (fail_stack.stack, |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3120 (fail_stack.size |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3121 * sizeof (fail_stack_elt_t))); |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3122 } |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3123 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3124 regex_grow_registers (num_regs); |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3125 } |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3126 #endif /* not MATCH_MAY_ALLOCATE */ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3127 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3128 return REG_NOERROR; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3129 } /* regex_compile */ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3130 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3131 /* Subroutines for `regex_compile'. */ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3132 |
| 941 | 3133 /* Store OP at LOC followed by two-byte integer parameter ARG. */ |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3134 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3135 static void |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3136 store_op1 (op, loc, arg) |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3137 re_opcode_t op; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3138 unsigned char *loc; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3139 int arg; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3140 { |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3141 *loc = (unsigned char) op; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3142 STORE_NUMBER (loc + 1, arg); |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3143 } |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3144 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3145 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3146 /* Like `store_op1', but for two two-byte parameters ARG1 and ARG2. */ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3147 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3148 static void |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3149 store_op2 (op, loc, arg1, arg2) |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3150 re_opcode_t op; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3151 unsigned char *loc; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3152 int arg1, arg2; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3153 { |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3154 *loc = (unsigned char) op; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3155 STORE_NUMBER (loc + 1, arg1); |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3156 STORE_NUMBER (loc + 3, arg2); |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3157 } |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3158 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3159 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3160 /* Copy the bytes from LOC to END to open up three bytes of space at LOC |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3161 for OP followed by two-byte integer parameter ARG. */ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3162 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3163 static void |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3164 insert_op1 (op, loc, arg, end) |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3165 re_opcode_t op; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3166 unsigned char *loc; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3167 int arg; |
|
515
69ba3b63e1d1
(gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents:
511
diff
changeset
|
3168 unsigned char *end; |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3169 { |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3170 register unsigned char *pfrom = end; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3171 register unsigned char *pto = end + 3; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3172 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3173 while (pfrom != loc) |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3174 *--pto = *--pfrom; |
|
515
69ba3b63e1d1
(gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents:
511
diff
changeset
|
3175 |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3176 store_op1 (op, loc, arg); |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3177 } |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3178 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3179 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3180 /* Like `insert_op1', but for two two-byte parameters ARG1 and ARG2. */ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3181 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3182 static void |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3183 insert_op2 (op, loc, arg1, arg2, end) |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3184 re_opcode_t op; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3185 unsigned char *loc; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3186 int arg1, arg2; |
|
515
69ba3b63e1d1
(gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents:
511
diff
changeset
|
3187 unsigned char *end; |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3188 { |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3189 register unsigned char *pfrom = end; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3190 register unsigned char *pto = end + 5; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3191 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3192 while (pfrom != loc) |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3193 *--pto = *--pfrom; |
|
515
69ba3b63e1d1
(gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents:
511
diff
changeset
|
3194 |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3195 store_op2 (op, loc, arg1, arg2); |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3196 } |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3197 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3198 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3199 /* P points to just after a ^ in PATTERN. Return true if that ^ comes |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3200 after an alternative or a begin-subexpression. We assume there is at |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3201 least one character before the ^. */ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3202 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3203 static boolean |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3204 at_begline_loc_p (pattern, p, syntax) |
|
2350
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2349
diff
changeset
|
3205 const unsigned char *pattern, *p; |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3206 reg_syntax_t syntax; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3207 { |
|
2355
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
3208 const unsigned char *prev = p - 2; |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3209 boolean prev_prev_backslash = prev > pattern && prev[-1] == '\\'; |
|
515
69ba3b63e1d1
(gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents:
511
diff
changeset
|
3210 |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3211 return |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3212 /* After a subexpression? */ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3213 (*prev == '(' && (syntax & RE_NO_BK_PARENS || prev_prev_backslash)) |
| 941 | 3214 /* After an alternative? */ |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3215 || (*prev == '|' && (syntax & RE_NO_BK_VBAR || prev_prev_backslash)); |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3216 } |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3217 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3218 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3219 /* The dual of at_begline_loc_p. This one is for $. We assume there is |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3220 at least one character after the $, i.e., `P < PEND'. */ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3221 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3222 static boolean |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3223 at_endline_loc_p (p, pend, syntax) |
|
2350
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2349
diff
changeset
|
3224 const unsigned char *p, *pend; |
|
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2349
diff
changeset
|
3225 reg_syntax_t syntax; |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3226 { |
|
2355
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
3227 const unsigned char *next = p; |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3228 boolean next_backslash = *next == '\\'; |
|
2355
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
3229 const unsigned char *next_next = p + 1 < pend ? p + 1 : 0; |
|
515
69ba3b63e1d1
(gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents:
511
diff
changeset
|
3230 |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3231 return |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3232 /* Before a subexpression? */ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3233 (syntax & RE_NO_BK_PARENS ? *next == ')' |
| 941 | 3234 : next_backslash && next_next && *next_next == ')') |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3235 /* Before an alternative? */ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3236 || (syntax & RE_NO_BK_VBAR ? *next == '|' |
| 941 | 3237 : next_backslash && next_next && *next_next == '|'); |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3238 } |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3239 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3240 |
|
515
69ba3b63e1d1
(gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents:
511
diff
changeset
|
3241 /* Returns true if REGNUM is in one of COMPILE_STACK's elements and |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3242 false if it's not. */ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3243 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3244 static boolean |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3245 group_in_compile_stack (compile_stack, regnum) |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3246 compile_stack_type compile_stack; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3247 regnum_t regnum; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3248 { |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3249 int this_element; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3250 |
|
515
69ba3b63e1d1
(gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents:
511
diff
changeset
|
3251 for (this_element = compile_stack.avail - 1; |
|
69ba3b63e1d1
(gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents:
511
diff
changeset
|
3252 this_element >= 0; |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3253 this_element--) |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3254 if (compile_stack.stack[this_element].regnum == regnum) |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3255 return true; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3256 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3257 return false; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3258 } |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3259 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3260 /* re_compile_fastmap computes a ``fastmap'' for the compiled pattern in |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3261 BUFP. A fastmap records which of the (1 << BYTEWIDTH) possible |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3262 characters can start a string that matches the pattern. This fastmap |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3263 is used by re_search to skip quickly over impossible starting points. |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3264 |
|
1933
5ffa81ab1988
[emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents:
1660
diff
changeset
|
3265 Character codes above (1 << BYTEWIDTH) are not represented in the |
|
5ffa81ab1988
[emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents:
1660
diff
changeset
|
3266 fastmap, but the leading codes are represented. Thus, the fastmap |
|
5ffa81ab1988
[emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents:
1660
diff
changeset
|
3267 indicates which character sets could start a match. |
|
5ffa81ab1988
[emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents:
1660
diff
changeset
|
3268 |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3269 The caller must supply the address of a (1 << BYTEWIDTH)-byte data |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3270 area as BUFP->fastmap. |
|
515
69ba3b63e1d1
(gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents:
511
diff
changeset
|
3271 |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3272 We set the `fastmap', `fastmap_accurate', and `can_be_null' fields in |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3273 the pattern buffer. |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3274 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3275 Returns 0 if we succeed, -2 if an internal error. */ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3276 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3277 int |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3278 re_compile_fastmap (bufp) |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3279 struct re_pattern_buffer *bufp; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3280 { |
|
2345
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
3281 int j, k; |
|
2356
d93889e88226
(CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2355
diff
changeset
|
3282 boolean not; |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3283 #ifdef MATCH_MAY_ALLOCATE |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3284 fail_stack_type fail_stack; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3285 #endif |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3286 #ifndef REGEX_MALLOC |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3287 char *destination; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3288 #endif |
|
515
69ba3b63e1d1
(gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents:
511
diff
changeset
|
3289 |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3290 register char *fastmap = bufp->fastmap; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3291 unsigned char *pattern = bufp->buffer; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3292 unsigned long size = bufp->used; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3293 unsigned char *p = pattern; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3294 register unsigned char *pend = pattern + size; |
|
2356
d93889e88226
(CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2355
diff
changeset
|
3295 const boolean multibyte = bufp->multibyte; |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3296 |
|
2350
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2349
diff
changeset
|
3297 #if defined (REL_ALLOC) && defined (REGEX_MALLOC) |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3298 /* This holds the pointer to the failure stack, when |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3299 it is allocated relocatably. */ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3300 fail_stack_elt_t *failure_stack_ptr; |
|
2350
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2349
diff
changeset
|
3301 #endif |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3302 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3303 /* Assume that each path through the pattern can be null until |
| 941 | 3304 proven otherwise. We set this false at the bottom of switch |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3305 statement, to which we get only if a particular path doesn't |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3306 match the empty string. */ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3307 boolean path_can_be_null = true; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3308 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3309 /* We aren't doing a `succeed_n' to begin with. */ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3310 boolean succeed_n_p = false; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3311 |
| 939 | 3312 /* If all elements for base leading-codes in fastmap is set, this |
| 941 | 3313 flag is set true. */ |
| 939 | 3314 boolean match_any_multibyte_characters = false; |
| 3315 | |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3316 assert (fastmap != NULL && p != NULL); |
|
515
69ba3b63e1d1
(gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents:
511
diff
changeset
|
3317 |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3318 INIT_FAIL_STACK (); |
| 941 | 3319 bzero (fastmap, 1 << BYTEWIDTH); /* Assume nothing's valid. */ |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3320 bufp->fastmap_accurate = 1; /* It will be when we're done. */ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3321 bufp->can_be_null = 0; |
|
515
69ba3b63e1d1
(gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents:
511
diff
changeset
|
3322 |
|
2345
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
3323 /* The loop below works as follows: |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
3324 - It has a working-list kept in the PATTERN_STACK and which basically |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
3325 starts by only containing a pointer to the first operation. |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
3326 - If the opcode we're looking at is a match against some set of |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
3327 chars, then we add those chars to the fastmap and go on to the |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
3328 next work element from the worklist (done via `break'). |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
3329 - If the opcode is a control operator on the other hand, we either |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
3330 ignore it (if it's meaningless at this point, such as `start_memory') |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
3331 or execute it (if it's a jump). If the jump has several destinations |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
3332 (i.e. `on_failure_jump'), then we push the other destination onto the |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
3333 worklist. |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
3334 We guarantee termination by ignoring backward jumps (more or less), |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
3335 so that `p' is monotonically increasing. More to the point, we |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
3336 never set `p' (or push) anything `<= p1'. */ |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
3337 |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
3338 /* If can_be_null is set, then the fastmap will not be used anyway. */ |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
3339 while (!bufp->can_be_null) |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3340 { |
|
2345
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
3341 /* `p1' is used as a marker of how far back a `on_failure_jump' |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
3342 can go without being ignored. It is normally equal to `p' |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
3343 (which prevents any backward `on_failure_jump') except right |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
3344 after a plain `jump', to allow patterns such as: |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
3345 0: jump 10 |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
3346 3..9: <body> |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
3347 10: on_failure_jump 3 |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
3348 as used for the *? operator. */ |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
3349 unsigned char *p1 = p; |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
3350 |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3351 if (p == pend || *p == succeed) |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3352 { |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3353 /* We have reached the (effective) end of pattern. */ |
|
2345
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
3354 if (!PATTERN_STACK_EMPTY ()) |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3355 { |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3356 bufp->can_be_null |= path_can_be_null; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3357 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3358 /* Reset for next path. */ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3359 path_can_be_null = true; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3360 |
|
2349
5fa185a9956e
* regex.c: Declare a new type `re_char' used throughout the code for the
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2345
diff
changeset
|
3361 p = (unsigned char*) POP_PATTERN_OP (); |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3362 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3363 continue; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3364 } |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3365 else |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3366 break; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3367 } |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3368 |
| 941 | 3369 /* We should never be about to go beyond the end of the pattern. */ |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3370 assert (p < pend); |
|
515
69ba3b63e1d1
(gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents:
511
diff
changeset
|
3371 |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3372 switch (SWITCH_ENUM_CAST ((re_opcode_t) *p++)) |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3373 { |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3374 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3375 case duplicate: |
|
2345
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
3376 /* If the first character has to match a backreference, that means |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
3377 that the group was empty (since it already matched). Since this |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
3378 is the only case that interests us here, we can assume that the |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
3379 backreference must match the empty string. */ |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
3380 p++; |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
3381 continue; |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3382 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3383 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3384 /* Following are the cases which match a character. These end |
| 941 | 3385 with `break'. */ |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3386 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3387 case exactn: |
| 941 | 3388 fastmap[p[1]] = 1; |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3389 break; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3390 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3391 |
|
2356
d93889e88226
(CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2355
diff
changeset
|
3392 case anychar: |
|
d93889e88226
(CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2355
diff
changeset
|
3393 /* We could put all the chars except for \n (and maybe \0) |
|
d93889e88226
(CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2355
diff
changeset
|
3394 but we don't bother since it is generally not worth it. */ |
|
d93889e88226
(CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2355
diff
changeset
|
3395 bufp->can_be_null = 1; |
|
d93889e88226
(CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2355
diff
changeset
|
3396 continue; |
|
d93889e88226
(CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2355
diff
changeset
|
3397 |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3398 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3399 case charset_not: |
|
2356
d93889e88226
(CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2355
diff
changeset
|
3400 /* Chars beyond end of bitmap are possible matches. |
|
d93889e88226
(CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2355
diff
changeset
|
3401 All the single-byte codes can occur in multibyte buffers. |
|
d93889e88226
(CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2355
diff
changeset
|
3402 So any that are not listed in the charset |
|
d93889e88226
(CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2355
diff
changeset
|
3403 are possible matches, even in multibyte buffers. */ |
|
d93889e88226
(CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2355
diff
changeset
|
3404 if (!fastmap) break; |
|
d93889e88226
(CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2355
diff
changeset
|
3405 for (j = CHARSET_BITMAP_SIZE (&p[-1]) * BYTEWIDTH; |
|
d93889e88226
(CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2355
diff
changeset
|
3406 j < (1 << BYTEWIDTH); j++) |
|
d93889e88226
(CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2355
diff
changeset
|
3407 fastmap[j] = 1; |
|
d93889e88226
(CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2355
diff
changeset
|
3408 /* Fallthrough */ |
| 939 | 3409 case charset: |
|
2356
d93889e88226
(CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2355
diff
changeset
|
3410 if (!fastmap) break; |
|
d93889e88226
(CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2355
diff
changeset
|
3411 not = (re_opcode_t) *(p - 1) == charset_not; |
| 939 | 3412 for (j = CHARSET_BITMAP_SIZE (&p[-1]) * BYTEWIDTH - 1, p++; |
| 3413 j >= 0; j--) | |
|
2356
d93889e88226
(CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2355
diff
changeset
|
3414 if (!!(p[j / BYTEWIDTH] & (1 << (j % BYTEWIDTH))) ^ not) |
| 939 | 3415 fastmap[j] = 1; |
| 3416 | |
|
2356
d93889e88226
(CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2355
diff
changeset
|
3417 if ((not && multibyte) |
|
d93889e88226
(CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2355
diff
changeset
|
3418 /* Any character set can possibly contain a character |
|
d93889e88226
(CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2355
diff
changeset
|
3419 which doesn't match the specified set of characters. */ |
|
d93889e88226
(CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2355
diff
changeset
|
3420 || (CHARSET_RANGE_TABLE_EXISTS_P (&p[-2]) |
|
d93889e88226
(CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2355
diff
changeset
|
3421 && CHARSET_RANGE_TABLE_BITS (&p[-2]) != 0)) |
|
d93889e88226
(CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2355
diff
changeset
|
3422 /* If we can match a character class, we can match |
|
d93889e88226
(CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2355
diff
changeset
|
3423 any character set. */ |
|
d93889e88226
(CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2355
diff
changeset
|
3424 { |
|
d93889e88226
(CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2355
diff
changeset
|
3425 set_fastmap_for_multibyte_characters: |
|
d93889e88226
(CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2355
diff
changeset
|
3426 if (match_any_multibyte_characters == false) |
|
d93889e88226
(CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2355
diff
changeset
|
3427 { |
|
d93889e88226
(CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2355
diff
changeset
|
3428 for (j = 0x80; j < 0xA0; j++) /* XXX */ |
|
d93889e88226
(CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2355
diff
changeset
|
3429 if (BASE_LEADING_CODE_P (j)) |
|
d93889e88226
(CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2355
diff
changeset
|
3430 fastmap[j] = 1; |
|
d93889e88226
(CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2355
diff
changeset
|
3431 match_any_multibyte_characters = true; |
|
d93889e88226
(CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2355
diff
changeset
|
3432 } |
|
d93889e88226
(CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2355
diff
changeset
|
3433 } |
|
d93889e88226
(CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2355
diff
changeset
|
3434 |
|
d93889e88226
(CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2355
diff
changeset
|
3435 else if (!not && CHARSET_RANGE_TABLE_EXISTS_P (&p[-2]) |
|
d93889e88226
(CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2355
diff
changeset
|
3436 && match_any_multibyte_characters == false) |
| 939 | 3437 { |
| 3438 /* Set fastmap[I] 1 where I is a base leading code of each | |
| 3439 multibyte character in the range table. */ | |
| 3440 int c, count; | |
| 3441 | |
|
2356
d93889e88226
(CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2355
diff
changeset
|
3442 /* Make P points the range table. `+ 2' is to skip flag |
|
d93889e88226
(CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2355
diff
changeset
|
3443 bits for a character class. */ |
|
d93889e88226
(CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2355
diff
changeset
|
3444 p += CHARSET_BITMAP_SIZE (&p[-2]) + 2; |
| 939 | 3445 |
|
1965
058a9ce57dd7
1999-09-04 Richard Stallman <rms@gnu.org>
Dave Love <fx@gnu.org>
parents:
1933
diff
changeset
|
3446 /* Extract the number of ranges in range table into COUNT. */ |
| 939 | 3447 EXTRACT_NUMBER_AND_INCR (count, p); |
| 3448 for (; count > 0; count--, p += 2 * 3) /* XXX */ | |
| 3449 { | |
| 3450 /* Extract the start of each range. */ | |
| 3451 EXTRACT_CHARACTER (c, p); | |
| 3452 j = CHAR_CHARSET (c); | |
| 3453 fastmap[CHARSET_LEADING_CODE_BASE (j)] = 1; | |
| 3454 } | |
| 3455 } | |
| 3456 break; | |
| 3457 | |
|
2356
d93889e88226
(CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2355
diff
changeset
|
3458 case syntaxspec: |
|
d93889e88226
(CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2355
diff
changeset
|
3459 case notsyntaxspec: |
|
d93889e88226
(CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2355
diff
changeset
|
3460 if (!fastmap) break; |
|
d93889e88226
(CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2355
diff
changeset
|
3461 #ifndef emacs |
|
d93889e88226
(CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2355
diff
changeset
|
3462 not = (re_opcode_t)p[-1] == notsyntaxspec; |
|
d93889e88226
(CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2355
diff
changeset
|
3463 k = *p++; |
|
d93889e88226
(CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2355
diff
changeset
|
3464 for (j = 0; j < (1 << BYTEWIDTH); j++) |
|
2357
419f0813676a
(re_compile_fastmap, re_match_2_internal): Fix cast to re_opcode_t.
Dave Love <fx@gnu.org>
parents:
2356
diff
changeset
|
3465 if ((SYNTAX (j) == (re_opcode_t) k) ^ not) |
| 939 | 3466 fastmap[j] = 1; |
| 3467 break; | |
|
2356
d93889e88226
(CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2355
diff
changeset
|
3468 #else /* emacs */ |
| 939 | 3469 /* This match depends on text properties. These end with |
| 3470 aborting optimizations. */ | |
| 3471 bufp->can_be_null = 1; | |
|
2345
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
3472 continue; |
| 939 | 3473 |
| 3474 case categoryspec: | |
|
2356
d93889e88226
(CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2355
diff
changeset
|
3475 case notcategoryspec: |
|
d93889e88226
(CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2355
diff
changeset
|
3476 if (!fastmap) break; |
|
d93889e88226
(CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2355
diff
changeset
|
3477 not = (re_opcode_t)p[-1] == notcategoryspec; |
| 939 | 3478 k = *p++; |
|
2356
d93889e88226
(CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2355
diff
changeset
|
3479 for (j = 0; j < (1 << BYTEWIDTH); j++) |
|
d93889e88226
(CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2355
diff
changeset
|
3480 if ((CHAR_HAS_CATEGORY (j, k)) ^ not) |
| 939 | 3481 fastmap[j] = 1; |
| 3482 | |
|
2356
d93889e88226
(CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2355
diff
changeset
|
3483 if (multibyte) |
| 939 | 3484 /* Any character set can possibly contain a character |
|
2356
d93889e88226
(CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2355
diff
changeset
|
3485 whose category is K (or not). */ |
| 939 | 3486 goto set_fastmap_for_multibyte_characters; |
| 3487 break; | |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3488 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3489 /* All cases after this match the empty string. These end with |
| 941 | 3490 `continue'. */ |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3491 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3492 case before_dot: |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3493 case at_dot: |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3494 case after_dot: |
|
2356
d93889e88226
(CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2355
diff
changeset
|
3495 #endif /* !emacs */ |
| 941 | 3496 case no_op: |
| 3497 case begline: | |
| 3498 case endline: | |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3499 case begbuf: |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3500 case endbuf: |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3501 case wordbound: |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3502 case notwordbound: |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3503 case wordbeg: |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3504 case wordend: |
| 941 | 3505 continue; |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3506 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3507 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3508 case jump_n: |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3509 case jump: |
| 941 | 3510 EXTRACT_NUMBER_AND_INCR (j, p); |
|
2345
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
3511 if (j < 0) |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
3512 /* Backward jumps can only go back to code that we've already |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
3513 visited. `re_compile' should make sure this is true. */ |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
3514 break; |
|
515
69ba3b63e1d1
(gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents:
511
diff
changeset
|
3515 p += j; |
|
2345
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
3516 switch (SWITCH_ENUM_CAST ((re_opcode_t) *p)) |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
3517 { |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
3518 case on_failure_jump: |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
3519 case on_failure_keep_string_jump: |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
3520 case on_failure_jump_loop: |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
3521 case on_failure_jump_smart: |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
3522 p++; |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
3523 break; |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
3524 default: |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
3525 continue; |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
3526 }; |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
3527 /* Keep `p1' to allow the `on_failure_jump' we are jumping to |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
3528 to jump back to "just after here". */ |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
3529 /* Fallthrough */ |
| 941 | 3530 |
| 3531 case on_failure_jump: | |
| 3532 case on_failure_keep_string_jump: | |
|
2345
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
3533 case on_failure_jump_loop: |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
3534 case on_failure_jump_smart: |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3535 handle_on_failure_jump: |
| 941 | 3536 EXTRACT_NUMBER_AND_INCR (j, p); |
| 3537 | |
| 3538 /* For some patterns, e.g., `(a?)?', `p+j' here points to the | |
| 3539 end of the pattern. We don't want to push such a point, | |
| 3540 since when we restore it above, entering the switch will | |
| 3541 increment `p' past the end of the pattern. We don't need | |
| 3542 to push such a point since we obviously won't find any more | |
| 3543 fastmap entries beyond `pend'. Such a pattern can match | |
| 3544 the null string, though. */ | |
|
2345
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
3545 if (p + j <= p1) |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
3546 /* Backward jump to be ignored. */ |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
3547 ; |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
3548 else if (p + j < pend) |
| 941 | 3549 { |
| 3550 if (!PUSH_PATTERN_OP (p + j, fail_stack)) | |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3551 { |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3552 RESET_FAIL_STACK (); |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3553 return -2; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3554 } |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3555 } |
| 941 | 3556 else |
| 3557 bufp->can_be_null = 1; | |
| 3558 | |
| 3559 if (succeed_n_p) | |
| 3560 { | |
| 3561 EXTRACT_NUMBER_AND_INCR (k, p); /* Skip the n. */ | |
| 3562 succeed_n_p = false; | |
| 3563 } | |
| 3564 | |
| 3565 continue; | |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3566 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3567 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3568 case succeed_n: |
| 941 | 3569 /* Get to the number of times to succeed. */ |
| 3570 p += 2; | |
| 3571 | |
| 3572 /* Increment p past the n for when k != 0. */ | |
| 3573 EXTRACT_NUMBER_AND_INCR (k, p); | |
| 3574 if (k == 0) | |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3575 { |
| 941 | 3576 p -= 4; |
| 3577 succeed_n_p = true; /* Spaghetti code alert. */ | |
| 3578 goto handle_on_failure_jump; | |
| 3579 } | |
| 3580 continue; | |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3581 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3582 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3583 case set_number_at: |
| 941 | 3584 p += 4; |
| 3585 continue; | |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3586 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3587 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3588 case start_memory: |
| 941 | 3589 case stop_memory: |
|
2345
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
3590 p += 1; |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3591 continue; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3592 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3593 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3594 default: |
| 941 | 3595 abort (); /* We have listed all the cases. */ |
| 3596 } /* switch *p++ */ | |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3597 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3598 /* Getting here means we have found the possible starting |
| 941 | 3599 characters for one path of the pattern -- and that the empty |
| 3600 string does not match. We need not follow this path further. | |
| 3601 Instead, look at the next alternative (remembered on the | |
| 3602 stack), or quit if no more. The test at the top of the loop | |
| 3603 does these things. */ | |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3604 path_can_be_null = false; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3605 p = pend; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3606 } /* while p */ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3607 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3608 /* Set `can_be_null' for the last path (also the first path, if the |
| 941 | 3609 pattern is empty). */ |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3610 bufp->can_be_null |= path_can_be_null; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3611 RESET_FAIL_STACK (); |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3612 return 0; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3613 } /* re_compile_fastmap */ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3614 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3615 /* Set REGS to hold NUM_REGS registers, storing them in STARTS and |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3616 ENDS. Subsequent matches using PATTERN_BUFFER and REGS will use |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3617 this memory for recording register information. STARTS and ENDS |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3618 must be allocated using the malloc library routine, and must each |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3619 be at least NUM_REGS * sizeof (regoff_t) bytes long. |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3620 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3621 If NUM_REGS == 0, then subsequent matches should allocate their own |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3622 register data. |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3623 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3624 Unless this function is called, the first search or match using |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3625 PATTERN_BUFFER will allocate its own register data, without |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3626 freeing the old data. */ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3627 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3628 void |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3629 re_set_registers (bufp, regs, num_regs, starts, ends) |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3630 struct re_pattern_buffer *bufp; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3631 struct re_registers *regs; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3632 unsigned num_regs; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3633 regoff_t *starts, *ends; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3634 { |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3635 if (num_regs) |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3636 { |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3637 bufp->regs_allocated = REGS_REALLOCATE; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3638 regs->num_regs = num_regs; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3639 regs->start = starts; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3640 regs->end = ends; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3641 } |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3642 else |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3643 { |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3644 bufp->regs_allocated = REGS_UNALLOCATED; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3645 regs->num_regs = 0; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3646 regs->start = regs->end = (regoff_t *) 0; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3647 } |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3648 } |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3649 |
| 941 | 3650 /* Searching routines. */ |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3651 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3652 /* Like re_search_2, below, but only one string is specified, and |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3653 doesn't let you say where to stop matching. */ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3654 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3655 int |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3656 re_search (bufp, string, size, startpos, range, regs) |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3657 struct re_pattern_buffer *bufp; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3658 const char *string; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3659 int size, startpos, range; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3660 struct re_registers *regs; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3661 { |
|
515
69ba3b63e1d1
(gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents:
511
diff
changeset
|
3662 return re_search_2 (bufp, NULL, 0, string, size, startpos, range, |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3663 regs, size); |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3664 } |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3665 |
| 939 | 3666 /* End address of virtual concatenation of string. */ |
| 3667 #define STOP_ADDR_VSTRING(P) \ | |
| 3668 (((P) >= size1 ? string2 + size2 : string1 + size1)) | |
| 3669 | |
| 3670 /* Address of POS in the concatenation of virtual string. */ | |
| 3671 #define POS_ADDR_VSTRING(POS) \ | |
| 3672 (((POS) >= size1 ? string2 - size1 : string1) + (POS)) | |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3673 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3674 /* Using the compiled pattern in BUFP->buffer, first tries to match the |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3675 virtual concatenation of STRING1 and STRING2, starting first at index |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3676 STARTPOS, then at STARTPOS + 1, and so on. |
|
515
69ba3b63e1d1
(gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents:
511
diff
changeset
|
3677 |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3678 STRING1 and STRING2 have length SIZE1 and SIZE2, respectively. |
|
515
69ba3b63e1d1
(gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents:
511
diff
changeset
|
3679 |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3680 RANGE is how far to scan while trying to match. RANGE = 0 means try |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3681 only at STARTPOS; in general, the last start tried is STARTPOS + |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3682 RANGE. |
|
515
69ba3b63e1d1
(gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents:
511
diff
changeset
|
3683 |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3684 In REGS, return the indices of the virtual concatenation of STRING1 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3685 and STRING2 that matched the entire BUFP->buffer and its contained |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3686 subexpressions. |
|
515
69ba3b63e1d1
(gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents:
511
diff
changeset
|
3687 |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3688 Do not consider matching one past the index STOP in the virtual |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3689 concatenation of STRING1 and STRING2. |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3690 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3691 We return either the position in the strings at which the match was |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3692 found, -1 if no match, or -2 if error (such as failure |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3693 stack overflow). */ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3694 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3695 int |
|
2349
5fa185a9956e
* regex.c: Declare a new type `re_char' used throughout the code for the
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2345
diff
changeset
|
3696 re_search_2 (bufp, str1, size1, str2, size2, startpos, range, regs, stop) |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3697 struct re_pattern_buffer *bufp; |
|
2349
5fa185a9956e
* regex.c: Declare a new type `re_char' used throughout the code for the
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2345
diff
changeset
|
3698 const char *str1, *str2; |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3699 int size1, size2; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3700 int startpos; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3701 int range; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3702 struct re_registers *regs; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3703 int stop; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3704 { |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3705 int val; |
|
2349
5fa185a9956e
* regex.c: Declare a new type `re_char' used throughout the code for the
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2345
diff
changeset
|
3706 re_char *string1 = (re_char*) str1; |
|
5fa185a9956e
* regex.c: Declare a new type `re_char' used throughout the code for the
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2345
diff
changeset
|
3707 re_char *string2 = (re_char*) str2; |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3708 register char *fastmap = bufp->fastmap; |
|
501
f29b13c2cefd
(TRANSLATE, PATFETCH): Cast elt of `translate'.
Richard Stallman <rms@gnu.org>
parents:
490
diff
changeset
|
3709 register RE_TRANSLATE_TYPE translate = bufp->translate; |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3710 int total_size = size1 + size2; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3711 int endpos = startpos + range; |
|
678
bd677f8ba924
(re_search_2): Optimize regexp that starts with ^.
Richard Stallman <rms@gnu.org>
parents:
677
diff
changeset
|
3712 int anchored_start = 0; |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3713 |
| 941 | 3714 /* Nonzero if we have to concern multibyte character. */ |
| 939 | 3715 int multibyte = bufp->multibyte; |
| 3716 | |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3717 /* Check for out-of-range STARTPOS. */ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3718 if (startpos < 0 || startpos > total_size) |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3719 return -1; |
|
515
69ba3b63e1d1
(gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents:
511
diff
changeset
|
3720 |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3721 /* Fix up RANGE if it might eventually take us outside |
|
490
985fe9826996
(re_search_2): Use 0, not -1, as the lower bound
Richard Stallman <rms@gnu.org>
parents:
481
diff
changeset
|
3722 the virtual concatenation of STRING1 and STRING2. |
|
515
69ba3b63e1d1
(gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents:
511
diff
changeset
|
3723 Make sure we won't move STARTPOS below 0 or above TOTAL_SIZE. */ |
|
490
985fe9826996
(re_search_2): Use 0, not -1, as the lower bound
Richard Stallman <rms@gnu.org>
parents:
481
diff
changeset
|
3724 if (endpos < 0) |
|
985fe9826996
(re_search_2): Use 0, not -1, as the lower bound
Richard Stallman <rms@gnu.org>
parents:
481
diff
changeset
|
3725 range = 0 - startpos; |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3726 else if (endpos > total_size) |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3727 range = total_size - startpos; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3728 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3729 /* If the search isn't to be a backwards one, don't waste time in a |
|
1329
818db3848f2b
(re_search_2): Fix handling of at_dot.
Richard Stallman <rms@gnu.org>
parents:
1328
diff
changeset
|
3730 search for a pattern anchored at beginning of buffer. */ |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3731 if (bufp->used > 0 && (re_opcode_t) bufp->buffer[0] == begbuf && range > 0) |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3732 { |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3733 if (startpos > 0) |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3734 return -1; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3735 else |
|
1329
818db3848f2b
(re_search_2): Fix handling of at_dot.
Richard Stallman <rms@gnu.org>
parents:
1328
diff
changeset
|
3736 range = 0; |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3737 } |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3738 |
|
481
35afc74165b7
(re_search_2): If pattern starts with \=, optimize search.
Richard Stallman <rms@gnu.org>
parents:
480
diff
changeset
|
3739 #ifdef emacs |
|
35afc74165b7
(re_search_2): If pattern starts with \=, optimize search.
Richard Stallman <rms@gnu.org>
parents:
480
diff
changeset
|
3740 /* In a forward search for something that starts with \=. |
|
35afc74165b7
(re_search_2): If pattern starts with \=, optimize search.
Richard Stallman <rms@gnu.org>
parents:
480
diff
changeset
|
3741 don't keep searching past point. */ |
|
35afc74165b7
(re_search_2): If pattern starts with \=, optimize search.
Richard Stallman <rms@gnu.org>
parents:
480
diff
changeset
|
3742 if (bufp->used > 0 && (re_opcode_t) bufp->buffer[0] == at_dot && range > 0) |
|
35afc74165b7
(re_search_2): If pattern starts with \=, optimize search.
Richard Stallman <rms@gnu.org>
parents:
480
diff
changeset
|
3743 { |
|
1329
818db3848f2b
(re_search_2): Fix handling of at_dot.
Richard Stallman <rms@gnu.org>
parents:
1328
diff
changeset
|
3744 range = PT_BYTE - BEGV_BYTE - startpos; |
|
818db3848f2b
(re_search_2): Fix handling of at_dot.
Richard Stallman <rms@gnu.org>
parents:
1328
diff
changeset
|
3745 if (range < 0) |
|
481
35afc74165b7
(re_search_2): If pattern starts with \=, optimize search.
Richard Stallman <rms@gnu.org>
parents:
480
diff
changeset
|
3746 return -1; |
|
35afc74165b7
(re_search_2): If pattern starts with \=, optimize search.
Richard Stallman <rms@gnu.org>
parents:
480
diff
changeset
|
3747 } |
|
35afc74165b7
(re_search_2): If pattern starts with \=, optimize search.
Richard Stallman <rms@gnu.org>
parents:
480
diff
changeset
|
3748 #endif /* emacs */ |
|
35afc74165b7
(re_search_2): If pattern starts with \=, optimize search.
Richard Stallman <rms@gnu.org>
parents:
480
diff
changeset
|
3749 |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3750 /* Update the fastmap now if not correct already. */ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3751 if (fastmap && !bufp->fastmap_accurate) |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3752 if (re_compile_fastmap (bufp) == -2) |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3753 return -2; |
|
515
69ba3b63e1d1
(gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents:
511
diff
changeset
|
3754 |
|
678
bd677f8ba924
(re_search_2): Optimize regexp that starts with ^.
Richard Stallman <rms@gnu.org>
parents:
677
diff
changeset
|
3755 /* See whether the pattern is anchored. */ |
|
bd677f8ba924
(re_search_2): Optimize regexp that starts with ^.
Richard Stallman <rms@gnu.org>
parents:
677
diff
changeset
|
3756 if (bufp->buffer[0] == begline) |
|
bd677f8ba924
(re_search_2): Optimize regexp that starts with ^.
Richard Stallman <rms@gnu.org>
parents:
677
diff
changeset
|
3757 anchored_start = 1; |
|
bd677f8ba924
(re_search_2): Optimize regexp that starts with ^.
Richard Stallman <rms@gnu.org>
parents:
677
diff
changeset
|
3758 |
| 939 | 3759 #ifdef emacs |
|
1321
a37088328c87
(re_match_2, re_search_2): Convert position to a charpos,
Karl Heuer <kwzh@gnu.org>
parents:
1313
diff
changeset
|
3760 gl_state.object = re_match_object; |
|
a37088328c87
(re_match_2, re_search_2): Convert position to a charpos,
Karl Heuer <kwzh@gnu.org>
parents:
1313
diff
changeset
|
3761 { |
|
2350
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2349
diff
changeset
|
3762 int charpos = SYNTAX_TABLE_BYTE_TO_CHAR (POS_AS_IN_BUFFER (startpos)); |
|
1321
a37088328c87
(re_match_2, re_search_2): Convert position to a charpos,
Karl Heuer <kwzh@gnu.org>
parents:
1313
diff
changeset
|
3763 |
|
a37088328c87
(re_match_2, re_search_2): Convert position to a charpos,
Karl Heuer <kwzh@gnu.org>
parents:
1313
diff
changeset
|
3764 SETUP_SYNTAX_TABLE_FOR_OBJECT (re_match_object, charpos, 1); |
|
a37088328c87
(re_match_2, re_search_2): Convert position to a charpos,
Karl Heuer <kwzh@gnu.org>
parents:
1313
diff
changeset
|
3765 } |
| 939 | 3766 #endif |
| 3767 | |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3768 /* Loop through the string, looking for a place to start matching. */ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3769 for (;;) |
|
515
69ba3b63e1d1
(gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents:
511
diff
changeset
|
3770 { |
|
678
bd677f8ba924
(re_search_2): Optimize regexp that starts with ^.
Richard Stallman <rms@gnu.org>
parents:
677
diff
changeset
|
3771 /* If the pattern is anchored, |
|
bd677f8ba924
(re_search_2): Optimize regexp that starts with ^.
Richard Stallman <rms@gnu.org>
parents:
677
diff
changeset
|
3772 skip quickly past places we cannot match. |
|
bd677f8ba924
(re_search_2): Optimize regexp that starts with ^.
Richard Stallman <rms@gnu.org>
parents:
677
diff
changeset
|
3773 We don't bother to treat startpos == 0 specially |
|
bd677f8ba924
(re_search_2): Optimize regexp that starts with ^.
Richard Stallman <rms@gnu.org>
parents:
677
diff
changeset
|
3774 because that case doesn't repeat. */ |
|
bd677f8ba924
(re_search_2): Optimize regexp that starts with ^.
Richard Stallman <rms@gnu.org>
parents:
677
diff
changeset
|
3775 if (anchored_start && startpos > 0) |
|
bd677f8ba924
(re_search_2): Optimize regexp that starts with ^.
Richard Stallman <rms@gnu.org>
parents:
677
diff
changeset
|
3776 { |
|
bd677f8ba924
(re_search_2): Optimize regexp that starts with ^.
Richard Stallman <rms@gnu.org>
parents:
677
diff
changeset
|
3777 if (! (bufp->newline_anchor |
|
bd677f8ba924
(re_search_2): Optimize regexp that starts with ^.
Richard Stallman <rms@gnu.org>
parents:
677
diff
changeset
|
3778 && ((startpos <= size1 ? string1[startpos - 1] |
|
bd677f8ba924
(re_search_2): Optimize regexp that starts with ^.
Richard Stallman <rms@gnu.org>
parents:
677
diff
changeset
|
3779 : string2[startpos - size1 - 1]) |
|
bd677f8ba924
(re_search_2): Optimize regexp that starts with ^.
Richard Stallman <rms@gnu.org>
parents:
677
diff
changeset
|
3780 == '\n'))) |
|
bd677f8ba924
(re_search_2): Optimize regexp that starts with ^.
Richard Stallman <rms@gnu.org>
parents:
677
diff
changeset
|
3781 goto advance; |
|
bd677f8ba924
(re_search_2): Optimize regexp that starts with ^.
Richard Stallman <rms@gnu.org>
parents:
677
diff
changeset
|
3782 } |
|
bd677f8ba924
(re_search_2): Optimize regexp that starts with ^.
Richard Stallman <rms@gnu.org>
parents:
677
diff
changeset
|
3783 |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3784 /* If a fastmap is supplied, skip quickly over characters that |
| 941 | 3785 cannot be the start of a match. If the pattern can match the |
| 3786 null string, however, we don't need to skip characters; we want | |
| 3787 the first null string. */ | |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3788 if (fastmap && startpos < total_size && !bufp->can_be_null) |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3789 { |
|
2349
5fa185a9956e
* regex.c: Declare a new type `re_char' used throughout the code for the
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2345
diff
changeset
|
3790 register re_char *d; |
|
1296
7b938cc81ae2
(compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents:
1218
diff
changeset
|
3791 register unsigned int buf_ch; |
|
7b938cc81ae2
(compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents:
1218
diff
changeset
|
3792 |
|
7b938cc81ae2
(compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents:
1218
diff
changeset
|
3793 d = POS_ADDR_VSTRING (startpos); |
|
7b938cc81ae2
(compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents:
1218
diff
changeset
|
3794 |
| 941 | 3795 if (range > 0) /* Searching forwards. */ |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3796 { |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3797 register int lim = 0; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3798 int irange = range; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3799 |
| 941 | 3800 if (startpos < size1 && startpos + range >= size1) |
| 3801 lim = range - (size1 - startpos); | |
| 939 | 3802 |
| 941 | 3803 /* Written out as an if-else to avoid testing `translate' |
| 3804 inside the loop. */ | |
|
1335
97f50084cc62
(re_search_2): Fix indentation.
Andreas Schwab <schwab@suse.de>
parents:
1329
diff
changeset
|
3805 if (RE_TRANSLATE_P (translate)) |
|
97f50084cc62
(re_search_2): Fix indentation.
Andreas Schwab <schwab@suse.de>
parents:
1329
diff
changeset
|
3806 { |
|
1296
7b938cc81ae2
(compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents:
1218
diff
changeset
|
3807 if (multibyte) |
|
7b938cc81ae2
(compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents:
1218
diff
changeset
|
3808 while (range > lim) |
|
7b938cc81ae2
(compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents:
1218
diff
changeset
|
3809 { |
|
7b938cc81ae2
(compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents:
1218
diff
changeset
|
3810 int buf_charlen; |
|
7b938cc81ae2
(compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents:
1218
diff
changeset
|
3811 |
|
7b938cc81ae2
(compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents:
1218
diff
changeset
|
3812 buf_ch = STRING_CHAR_AND_LENGTH (d, range - lim, |
|
7b938cc81ae2
(compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents:
1218
diff
changeset
|
3813 buf_charlen); |
|
7b938cc81ae2
(compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents:
1218
diff
changeset
|
3814 |
|
7b938cc81ae2
(compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents:
1218
diff
changeset
|
3815 buf_ch = RE_TRANSLATE (translate, buf_ch); |
|
7b938cc81ae2
(compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents:
1218
diff
changeset
|
3816 if (buf_ch >= 0400 |
|
7b938cc81ae2
(compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents:
1218
diff
changeset
|
3817 || fastmap[buf_ch]) |
|
7b938cc81ae2
(compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents:
1218
diff
changeset
|
3818 break; |
|
7b938cc81ae2
(compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents:
1218
diff
changeset
|
3819 |
|
7b938cc81ae2
(compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents:
1218
diff
changeset
|
3820 range -= buf_charlen; |
|
7b938cc81ae2
(compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents:
1218
diff
changeset
|
3821 d += buf_charlen; |
|
7b938cc81ae2
(compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents:
1218
diff
changeset
|
3822 } |
|
7b938cc81ae2
(compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents:
1218
diff
changeset
|
3823 else |
|
7b938cc81ae2
(compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents:
1218
diff
changeset
|
3824 while (range > lim |
|
2349
5fa185a9956e
* regex.c: Declare a new type `re_char' used throughout the code for the
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2345
diff
changeset
|
3825 && !fastmap[RE_TRANSLATE (translate, *d)]) |
|
1381
24423cbaf6a9
(re_search_2): Don't use ++ inside RE_TRANSLATE.
Richard Stallman <rms@gnu.org>
parents:
1342
diff
changeset
|
3826 { |
|
24423cbaf6a9
(re_search_2): Don't use ++ inside RE_TRANSLATE.
Richard Stallman <rms@gnu.org>
parents:
1342
diff
changeset
|
3827 d++; |
|
24423cbaf6a9
(re_search_2): Don't use ++ inside RE_TRANSLATE.
Richard Stallman <rms@gnu.org>
parents:
1342
diff
changeset
|
3828 range--; |
|
24423cbaf6a9
(re_search_2): Don't use ++ inside RE_TRANSLATE.
Richard Stallman <rms@gnu.org>
parents:
1342
diff
changeset
|
3829 } |
|
1296
7b938cc81ae2
(compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents:
1218
diff
changeset
|
3830 } |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3831 else |
|
2349
5fa185a9956e
* regex.c: Declare a new type `re_char' used throughout the code for the
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2345
diff
changeset
|
3832 while (range > lim && !fastmap[*d]) |
|
1381
24423cbaf6a9
(re_search_2): Don't use ++ inside RE_TRANSLATE.
Richard Stallman <rms@gnu.org>
parents:
1342
diff
changeset
|
3833 { |
|
24423cbaf6a9
(re_search_2): Don't use ++ inside RE_TRANSLATE.
Richard Stallman <rms@gnu.org>
parents:
1342
diff
changeset
|
3834 d++; |
|
24423cbaf6a9
(re_search_2): Don't use ++ inside RE_TRANSLATE.
Richard Stallman <rms@gnu.org>
parents:
1342
diff
changeset
|
3835 range--; |
|
24423cbaf6a9
(re_search_2): Don't use ++ inside RE_TRANSLATE.
Richard Stallman <rms@gnu.org>
parents:
1342
diff
changeset
|
3836 } |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3837 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3838 startpos += irange - range; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3839 } |
| 941 | 3840 else /* Searching backwards. */ |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3841 { |
|
2355
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
3842 buf_ch = STRING_CHAR (d, (startpos >= size1 |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
3843 ? size2 + size1 - startpos |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
3844 : size1 - startpos)); |
|
1328
0aa10b723959
Use RE_TRANSLATE_P to check whether translation is
Andreas Schwab <schwab@suse.de>
parents:
1326
diff
changeset
|
3845 if (RE_TRANSLATE_P (translate)) |
|
1296
7b938cc81ae2
(compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents:
1218
diff
changeset
|
3846 buf_ch = RE_TRANSLATE (translate, buf_ch); |
|
7b938cc81ae2
(compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents:
1218
diff
changeset
|
3847 |
|
7b938cc81ae2
(compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents:
1218
diff
changeset
|
3848 if (! (buf_ch >= 0400 |
|
7b938cc81ae2
(compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents:
1218
diff
changeset
|
3849 || fastmap[buf_ch])) |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3850 goto advance; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3851 } |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3852 } |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3853 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3854 /* If can't match the null string, and that's all we have left, fail. */ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3855 if (range >= 0 && startpos == total_size && fastmap |
| 941 | 3856 && !bufp->can_be_null) |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3857 return -1; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3858 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3859 val = re_match_2_internal (bufp, string1, size1, string2, size2, |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3860 startpos, regs, stop); |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3861 #ifndef REGEX_MALLOC |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3862 #ifdef C_ALLOCA |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3863 alloca (0); |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3864 #endif |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3865 #endif |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3866 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3867 if (val >= 0) |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3868 return startpos; |
|
515
69ba3b63e1d1
(gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents:
511
diff
changeset
|
3869 |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3870 if (val == -2) |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3871 return -2; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3872 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3873 advance: |
|
515
69ba3b63e1d1
(gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents:
511
diff
changeset
|
3874 if (!range) |
| 941 | 3875 break; |
|
515
69ba3b63e1d1
(gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents:
511
diff
changeset
|
3876 else if (range > 0) |
| 941 | 3877 { |
| 939 | 3878 /* Update STARTPOS to the next character boundary. */ |
| 3879 if (multibyte) | |
| 3880 { | |
|
2349
5fa185a9956e
* regex.c: Declare a new type `re_char' used throughout the code for the
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2345
diff
changeset
|
3881 re_char *p = POS_ADDR_VSTRING (startpos); |
|
5fa185a9956e
* regex.c: Declare a new type `re_char' used throughout the code for the
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2345
diff
changeset
|
3882 re_char *pend = STOP_ADDR_VSTRING (startpos); |
| 939 | 3883 int len = MULTIBYTE_FORM_LENGTH (p, pend - p); |
| 3884 | |
| 3885 range -= len; | |
| 3886 if (range < 0) | |
| 3887 break; | |
| 3888 startpos += len; | |
| 3889 } | |
| 3890 else | |
| 3891 { | |
|
961
6959c7741ed2
(re_search_2): Cast result of POS_ADDR_VSTRING.
Richard Stallman <rms@gnu.org>
parents:
942
diff
changeset
|
3892 range--; |
|
6959c7741ed2
(re_search_2): Cast result of POS_ADDR_VSTRING.
Richard Stallman <rms@gnu.org>
parents:
942
diff
changeset
|
3893 startpos++; |
|
6959c7741ed2
(re_search_2): Cast result of POS_ADDR_VSTRING.
Richard Stallman <rms@gnu.org>
parents:
942
diff
changeset
|
3894 } |
| 679 | 3895 } |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3896 else |
| 941 | 3897 { |
| 3898 range++; | |
| 3899 startpos--; | |
| 939 | 3900 |
| 3901 /* Update STARTPOS to the previous character boundary. */ | |
| 3902 if (multibyte) | |
| 3903 { | |
|
2349
5fa185a9956e
* regex.c: Declare a new type `re_char' used throughout the code for the
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2345
diff
changeset
|
3904 re_char *p = POS_ADDR_VSTRING (startpos); |
| 939 | 3905 int len = 0; |
| 3906 | |
| 3907 /* Find the head of multibyte form. */ | |
|
1204
28ff40a118b8
(re_search_2): Fix call to CHAR_HEAD_P.
Richard Stallman <rms@gnu.org>
parents:
1158
diff
changeset
|
3908 while (!CHAR_HEAD_P (*p)) |
| 939 | 3909 p--, len++; |
| 3910 | |
| 3911 /* Adjust it. */ | |
| 3912 #if 0 /* XXX */ | |
| 3913 if (MULTIBYTE_FORM_LENGTH (p, len + 1) != (len + 1)) | |
| 3914 ; | |
| 3915 else | |
| 3916 #endif | |
| 3917 { | |
| 3918 range += len; | |
| 3919 if (range > 0) | |
| 3920 break; | |
| 3921 | |
| 3922 startpos -= len; | |
| 3923 } | |
| 3924 } | |
| 941 | 3925 } |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3926 } |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3927 return -1; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3928 } /* re_search_2 */ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3929 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3930 /* Declarations and macros for re_match_2. */ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3931 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3932 static int bcmp_translate (); |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3933 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3934 /* This converts PTR, a pointer into one of the search strings `string1' |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3935 and `string2' into an offset from the beginning of that string. */ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3936 #define POINTER_TO_OFFSET(ptr) \ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3937 (FIRST_STRING_P (ptr) \ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3938 ? ((regoff_t) ((ptr) - string1)) \ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3939 : ((regoff_t) ((ptr) - string2 + size1))) |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3940 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3941 /* Call before fetching a character with *d. This switches over to |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3942 string2 if necessary. */ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3943 #define PREFETCH() \ |
| 941 | 3944 while (d == dend) \ |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3945 { \ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3946 /* End of string2 => fail. */ \ |
| 941 | 3947 if (dend == end_match_2) \ |
| 3948 goto fail; \ | |
| 3949 /* End of string1 => advance to string2. */ \ | |
| 3950 d = string2; \ | |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3951 dend = end_match_2; \ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3952 } |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3953 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3954 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3955 /* Test if at very beginning or at very end of the virtual concatenation |
| 941 | 3956 of `string1' and `string2'. If only one string, it's `string2'. */ |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3957 #define AT_STRINGS_BEG(d) ((d) == (size1 ? string1 : string2) || !size2) |
|
515
69ba3b63e1d1
(gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents:
511
diff
changeset
|
3958 #define AT_STRINGS_END(d) ((d) == end2) |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3959 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3960 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3961 /* Test if D points to a character which is word-constituent. We have |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3962 two special cases to check for: if past the end of string1, look at |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3963 the first character in string2; and if before the beginning of |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3964 string2, look at the last character in string1. */ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3965 #define WORDCHAR_P(d) \ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3966 (SYNTAX ((d) == end1 ? *string2 \ |
| 941 | 3967 : (d) == string2 - 1 ? *(end1 - 1) : *(d)) \ |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3968 == Sword) |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3969 |
|
521
7089c3a3a164
(AT_WORD_BOUNDARY): Disable macro.
Karl Heuer <kwzh@gnu.org>
parents:
515
diff
changeset
|
3970 /* Disabled due to a compiler bug -- see comment at case wordbound */ |
| 939 | 3971 |
| 3972 /* The comment at case wordbound is following one, but we don't use | |
| 3973 AT_WORD_BOUNDARY anymore to support multibyte form. | |
| 3974 | |
| 3975 The DEC Alpha C compiler 3.x generates incorrect code for the | |
| 941 | 3976 test WORDCHAR_P (d - 1) != WORDCHAR_P (d) in the expansion of |
| 3977 AT_WORD_BOUNDARY, so this code is disabled. Expanding the | |
| 939 | 3978 macro and introducing temporary variables works around the bug. */ |
| 3979 | |
|
521
7089c3a3a164
(AT_WORD_BOUNDARY): Disable macro.
Karl Heuer <kwzh@gnu.org>
parents:
515
diff
changeset
|
3980 #if 0 |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3981 /* Test if the character before D and the one at D differ with respect |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3982 to being word-constituent. */ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3983 #define AT_WORD_BOUNDARY(d) \ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3984 (AT_STRINGS_BEG (d) || AT_STRINGS_END (d) \ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3985 || WORDCHAR_P (d - 1) != WORDCHAR_P (d)) |
|
521
7089c3a3a164
(AT_WORD_BOUNDARY): Disable macro.
Karl Heuer <kwzh@gnu.org>
parents:
515
diff
changeset
|
3986 #endif |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3987 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3988 /* Free everything we malloc. */ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3989 #ifdef MATCH_MAY_ALLOCATE |
| 942 | 3990 #define FREE_VAR(var) if (var) { REGEX_FREE (var); var = NULL; } else |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3991 #define FREE_VARIABLES() \ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3992 do { \ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3993 REGEX_FREE_STACK (fail_stack.stack); \ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3994 FREE_VAR (regstart); \ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3995 FREE_VAR (regend); \ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3996 FREE_VAR (best_regstart); \ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3997 FREE_VAR (best_regend); \ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3998 } while (0) |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
3999 #else |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4000 #define FREE_VARIABLES() ((void)0) /* Do nothing! But inhibit gcc warning. */ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4001 #endif /* not MATCH_MAY_ALLOCATE */ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4002 |
|
2345
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
4003 |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
4004 /* Optimization routines. */ |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
4005 |
|
2355
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
4006 /* If the operation is a match against one or more chars, |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
4007 return a pointer to the next operation, else return NULL. */ |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
4008 static unsigned char * |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
4009 skip_one_char (p) |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
4010 unsigned char *p; |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
4011 { |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
4012 switch (SWITCH_ENUM_CAST (*p++)) |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
4013 { |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
4014 case anychar: |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
4015 break; |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
4016 |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
4017 case exactn: |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
4018 p += *p + 1; |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
4019 break; |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
4020 |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
4021 case charset_not: |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
4022 case charset: |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
4023 if (CHARSET_RANGE_TABLE_EXISTS_P (p - 1)) |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
4024 { |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
4025 int mcnt; |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
4026 p = CHARSET_RANGE_TABLE (p - 1); |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
4027 EXTRACT_NUMBER_AND_INCR (mcnt, p); |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
4028 p = CHARSET_RANGE_TABLE_END (p, mcnt); |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
4029 } |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
4030 else |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
4031 p += 1 + CHARSET_BITMAP_SIZE (p - 1); |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
4032 break; |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
4033 |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
4034 case syntaxspec: |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
4035 case notsyntaxspec: |
|
2356
d93889e88226
(CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2355
diff
changeset
|
4036 #ifdef emacs |
|
2355
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
4037 case categoryspec: |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
4038 case notcategoryspec: |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
4039 #endif /* emacs */ |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
4040 p++; |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
4041 break; |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
4042 |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
4043 default: |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
4044 p = NULL; |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
4045 } |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
4046 return p; |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
4047 } |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
4048 |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
4049 |
|
2345
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
4050 /* Jump over non-matching operations. */ |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
4051 static unsigned char * |
|
2355
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
4052 skip_noops (p, pend) |
|
2345
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
4053 unsigned char *p, *pend; |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
4054 { |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
4055 int mcnt; |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
4056 while (p < pend) |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
4057 { |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
4058 switch (SWITCH_ENUM_CAST ((re_opcode_t) *p)) |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
4059 { |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
4060 case start_memory: |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
4061 case stop_memory: |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
4062 p += 2; break; |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
4063 case no_op: |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
4064 p += 1; break; |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
4065 case jump: |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
4066 p += 1; |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
4067 EXTRACT_NUMBER_AND_INCR (mcnt, p); |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
4068 p += mcnt; |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
4069 break; |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
4070 default: |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
4071 return p; |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
4072 } |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
4073 } |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
4074 assert (p == pend); |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
4075 return p; |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
4076 } |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
4077 |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
4078 /* Non-zero if "p1 matches something" implies "p2 fails". */ |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
4079 static int |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
4080 mutually_exclusive_p (bufp, p1, p2) |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
4081 struct re_pattern_buffer *bufp; |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
4082 unsigned char *p1, *p2; |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
4083 { |
|
2355
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
4084 re_opcode_t op2; |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
4085 const boolean multibyte = bufp->multibyte; |
|
2345
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
4086 unsigned char *pend = bufp->buffer + bufp->used; |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
4087 |
|
2355
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
4088 assert (p1 >= bufp->buffer && p1 < pend |
|
2345
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
4089 && p2 >= bufp->buffer && p2 <= pend); |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
4090 |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
4091 /* Skip over open/close-group commands. |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
4092 If what follows this loop is a ...+ construct, |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
4093 look at what begins its body, since we will have to |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
4094 match at least one of that. */ |
|
2355
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
4095 p2 = skip_noops (p2, pend); |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
4096 /* The same skip can be done for p1, except that this function |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
4097 is only used in the case where p1 is a simple match operator. */ |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
4098 /* p1 = skip_noops (p1, pend); */ |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
4099 |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
4100 assert (p1 >= bufp->buffer && p1 < pend |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
4101 && p2 >= bufp->buffer && p2 <= pend); |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
4102 |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
4103 op2 = p2 == pend ? succeed : *p2; |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
4104 |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
4105 switch (SWITCH_ENUM_CAST (op2)) |
|
2345
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
4106 { |
|
2355
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
4107 case succeed: |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
4108 case endbuf: |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
4109 /* If we're at the end of the pattern, we can change. */ |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
4110 if (skip_one_char (p1)) |
|
2345
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
4111 { |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
4112 DEBUG_PRINT1 (" End of pattern: fast loop.\n"); |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
4113 return 1; |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
4114 } |
|
2355
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
4115 break; |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
4116 |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
4117 case endline: |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
4118 if (!bufp->newline_anchor) |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
4119 break; |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
4120 /* Fallthrough */ |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
4121 case exactn: |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
4122 { |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
4123 register unsigned int c |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
4124 = (re_opcode_t) *p2 == endline ? '\n' |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
4125 : RE_STRING_CHAR(p2 + 2, pend - p2 - 2); |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
4126 |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
4127 if ((re_opcode_t) *p1 == exactn) |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
4128 { |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
4129 if (c != RE_STRING_CHAR (p1 + 2, pend - p1 - 2)) |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
4130 { |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
4131 DEBUG_PRINT3 (" '%c' != '%c' => fast loop.\n", c, p1[2]); |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
4132 return 1; |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
4133 } |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
4134 } |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
4135 |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
4136 else if ((re_opcode_t) *p1 == charset |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
4137 || (re_opcode_t) *p1 == charset_not) |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
4138 { |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
4139 int not = (re_opcode_t) *p1 == charset_not; |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
4140 |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
4141 /* Test if C is listed in charset (or charset_not) |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
4142 at `p1'. */ |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
4143 if (SINGLE_BYTE_CHAR_P (c)) |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
4144 { |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
4145 if (c < CHARSET_BITMAP_SIZE (p1) * BYTEWIDTH |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
4146 && p1[2 + c / BYTEWIDTH] & (1 << (c % BYTEWIDTH))) |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
4147 not = !not; |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
4148 } |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
4149 else if (CHARSET_RANGE_TABLE_EXISTS_P (p1)) |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
4150 CHARSET_LOOKUP_RANGE_TABLE (not, c, p1); |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
4151 |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
4152 /* `not' is equal to 1 if c would match, which means |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
4153 that we can't change to pop_failure_jump. */ |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
4154 if (!not) |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
4155 { |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
4156 DEBUG_PRINT1 (" No match => fast loop.\n"); |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
4157 return 1; |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
4158 } |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
4159 } |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
4160 else if ((re_opcode_t) *p1 == anychar |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
4161 && c == '\n') |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
4162 { |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
4163 DEBUG_PRINT1 (" . != \\n => fast loop.\n"); |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
4164 return 1; |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
4165 } |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
4166 } |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
4167 break; |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
4168 |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
4169 case charset: |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
4170 case charset_not: |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
4171 { |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
4172 if ((re_opcode_t) *p1 == exactn) |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
4173 /* Reuse the code above. */ |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
4174 return mutually_exclusive_p (bufp, p2, p1); |
|
2345
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
4175 |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
4176 |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
4177 /* It is hard to list up all the character in charset |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
4178 P2 if it includes multibyte character. Give up in |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
4179 such case. */ |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
4180 else if (!multibyte || !CHARSET_RANGE_TABLE_EXISTS_P (p2)) |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
4181 { |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
4182 /* Now, we are sure that P2 has no range table. |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
4183 So, for the size of bitmap in P2, `p2[1]' is |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
4184 enough. But P1 may have range table, so the |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
4185 size of bitmap table of P1 is extracted by |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
4186 using macro `CHARSET_BITMAP_SIZE'. |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
4187 |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
4188 Since we know that all the character listed in |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
4189 P2 is ASCII, it is enough to test only bitmap |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
4190 table of P1. */ |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
4191 |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
4192 if (*p1 == *p2) |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
4193 { |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
4194 int idx; |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
4195 /* We win if the charset inside the loop |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
4196 has no overlap with the one after the loop. */ |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
4197 for (idx = 0; |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
4198 (idx < (int) p2[1] |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
4199 && idx < CHARSET_BITMAP_SIZE (p1)); |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
4200 idx++) |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
4201 if ((p2[2 + idx] & p1[2 + idx]) != 0) |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
4202 break; |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
4203 |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
4204 if (idx == p2[1] |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
4205 || idx == CHARSET_BITMAP_SIZE (p1)) |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
4206 { |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
4207 DEBUG_PRINT1 (" No match => fast loop.\n"); |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
4208 return 1; |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
4209 } |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
4210 } |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
4211 else if ((re_opcode_t) *p1 == charset |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
4212 || (re_opcode_t) *p1 == charset_not) |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
4213 { |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
4214 int idx; |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
4215 /* We win if the charset_not inside the loop lists |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
4216 every character listed in the charset after. */ |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
4217 for (idx = 0; idx < (int) p2[1]; idx++) |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
4218 if (! (p2[2 + idx] == 0 |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
4219 || (idx < CHARSET_BITMAP_SIZE (p1) |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
4220 && ((p2[2 + idx] & ~ p1[2 + idx]) == 0)))) |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
4221 break; |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
4222 |
|
2355
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
4223 if (idx == p2[1]) |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
4224 { |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
4225 DEBUG_PRINT1 (" No match => fast loop.\n"); |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
4226 return 1; |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
4227 } |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
4228 } |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
4229 } |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
4230 } |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
4231 |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
4232 case wordend: |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
4233 case notsyntaxspec: |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
4234 return ((re_opcode_t) *p1 == syntaxspec |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
4235 && p1[1] == (op2 == wordend ? Sword : p2[1])); |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
4236 |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
4237 case wordbeg: |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
4238 case syntaxspec: |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
4239 return ((re_opcode_t) *p1 == notsyntaxspec |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
4240 && p1[1] == (op2 == wordend ? Sword : p2[1])); |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
4241 |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
4242 case wordbound: |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
4243 return (((re_opcode_t) *p1 == notsyntaxspec |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
4244 || (re_opcode_t) *p1 == syntaxspec) |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
4245 && p1[1] == Sword); |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
4246 |
|
2356
d93889e88226
(CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2355
diff
changeset
|
4247 #ifdef emacs |
|
2355
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
4248 case categoryspec: |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
4249 return ((re_opcode_t) *p1 == notcategoryspec && p1[1] == p2[1]); |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
4250 case notcategoryspec: |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
4251 return ((re_opcode_t) *p1 == categoryspec && p1[1] == p2[1]); |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
4252 #endif /* emacs */ |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
4253 |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
4254 default: |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
4255 ; |
|
2345
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
4256 } |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
4257 |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
4258 /* Safe default. */ |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
4259 return 0; |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
4260 } |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
4261 |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4262 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4263 /* Matching routines. */ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4264 |
| 941 | 4265 #ifndef emacs /* Emacs never uses this. */ |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4266 /* re_match is like re_match_2 except it takes only a single string. */ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4267 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4268 int |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4269 re_match (bufp, string, size, pos, regs) |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4270 struct re_pattern_buffer *bufp; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4271 const char *string; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4272 int size, pos; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4273 struct re_registers *regs; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4274 { |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4275 int result = re_match_2_internal (bufp, NULL, 0, string, size, |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4276 pos, regs, size); |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4277 alloca (0); |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4278 return result; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4279 } |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4280 #endif /* not emacs */ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4281 |
| 939 | 4282 #ifdef emacs |
| 4283 /* In Emacs, this is the string or buffer in which we | |
| 941 | 4284 are matching. It is used for looking up syntax properties. */ |
| 939 | 4285 Lisp_Object re_match_object; |
| 4286 #endif | |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4287 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4288 /* re_match_2 matches the compiled pattern in BUFP against the |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4289 the (virtual) concatenation of STRING1 and STRING2 (of length SIZE1 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4290 and SIZE2, respectively). We start matching at POS, and stop |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4291 matching at STOP. |
|
515
69ba3b63e1d1
(gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents:
511
diff
changeset
|
4292 |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4293 If REGS is non-null and the `no_sub' field of BUFP is nonzero, we |
| 941 | 4294 store offsets for the substring each group matched in REGS. See the |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4295 documentation for exactly how many groups we fill. |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4296 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4297 We return -1 if no match, -2 if an internal error (such as the |
| 941 | 4298 failure stack overflowing). Otherwise, we return the length of the |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4299 matched substring. */ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4300 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4301 int |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4302 re_match_2 (bufp, string1, size1, string2, size2, pos, regs, stop) |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4303 struct re_pattern_buffer *bufp; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4304 const char *string1, *string2; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4305 int size1, size2; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4306 int pos; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4307 struct re_registers *regs; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4308 int stop; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4309 { |
| 939 | 4310 int result; |
| 941 | 4311 |
| 939 | 4312 #ifdef emacs |
|
1321
a37088328c87
(re_match_2, re_search_2): Convert position to a charpos,
Karl Heuer <kwzh@gnu.org>
parents:
1313
diff
changeset
|
4313 int charpos; |
|
a37088328c87
(re_match_2, re_search_2): Convert position to a charpos,
Karl Heuer <kwzh@gnu.org>
parents:
1313
diff
changeset
|
4314 gl_state.object = re_match_object; |
|
2350
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2349
diff
changeset
|
4315 charpos = SYNTAX_TABLE_BYTE_TO_CHAR (POS_AS_IN_BUFFER (pos)); |
|
1321
a37088328c87
(re_match_2, re_search_2): Convert position to a charpos,
Karl Heuer <kwzh@gnu.org>
parents:
1313
diff
changeset
|
4316 SETUP_SYNTAX_TABLE_FOR_OBJECT (re_match_object, charpos, 1); |
| 939 | 4317 #endif |
| 4318 | |
| 4319 result = re_match_2_internal (bufp, string1, size1, string2, size2, | |
|
1321
a37088328c87
(re_match_2, re_search_2): Convert position to a charpos,
Karl Heuer <kwzh@gnu.org>
parents:
1313
diff
changeset
|
4320 pos, regs, stop); |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4321 alloca (0); |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4322 return result; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4323 } |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4324 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4325 /* This is a separate function so that we can force an alloca cleanup |
| 941 | 4326 afterwards. */ |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4327 static int |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4328 re_match_2_internal (bufp, string1, size1, string2, size2, pos, regs, stop) |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4329 struct re_pattern_buffer *bufp; |
|
2349
5fa185a9956e
* regex.c: Declare a new type `re_char' used throughout the code for the
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2345
diff
changeset
|
4330 re_char *string1, *string2; |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4331 int size1, size2; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4332 int pos; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4333 struct re_registers *regs; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4334 int stop; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4335 { |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4336 /* General temporaries. */ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4337 int mcnt; |
|
2349
5fa185a9956e
* regex.c: Declare a new type `re_char' used throughout the code for the
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2345
diff
changeset
|
4338 boolean not; |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4339 unsigned char *p1; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4340 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4341 /* Just past the end of the corresponding string. */ |
|
2349
5fa185a9956e
* regex.c: Declare a new type `re_char' used throughout the code for the
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2345
diff
changeset
|
4342 re_char *end1, *end2; |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4343 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4344 /* Pointers into string1 and string2, just past the last characters in |
| 941 | 4345 each to consider matching. */ |
|
2349
5fa185a9956e
* regex.c: Declare a new type `re_char' used throughout the code for the
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2345
diff
changeset
|
4346 re_char *end_match_1, *end_match_2; |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4347 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4348 /* Where we are in the data, and the end of the current string. */ |
|
2349
5fa185a9956e
* regex.c: Declare a new type `re_char' used throughout the code for the
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2345
diff
changeset
|
4349 re_char *d, *dend; |
|
515
69ba3b63e1d1
(gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents:
511
diff
changeset
|
4350 |
|
2350
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2349
diff
changeset
|
4351 /* Used sometimes to remember where we were before starting matching |
|
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2349
diff
changeset
|
4352 an operator so that we can go back in case of failure. This "atomic" |
|
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2349
diff
changeset
|
4353 behavior of matching opcodes is indispensable to the correctness |
|
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2349
diff
changeset
|
4354 of the on_failure_keep_string_jump optimization. */ |
|
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2349
diff
changeset
|
4355 re_char *dfail; |
|
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2349
diff
changeset
|
4356 |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4357 /* Where we are in the pattern, and the end of the pattern. */ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4358 unsigned char *p = bufp->buffer; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4359 register unsigned char *pend = p + bufp->used; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4360 |
| 941 | 4361 /* We use this to map every character in the string. */ |
|
501
f29b13c2cefd
(TRANSLATE, PATFETCH): Cast elt of `translate'.
Richard Stallman <rms@gnu.org>
parents:
490
diff
changeset
|
4362 RE_TRANSLATE_TYPE translate = bufp->translate; |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4363 |
| 941 | 4364 /* Nonzero if we have to concern multibyte character. */ |
|
2356
d93889e88226
(CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2355
diff
changeset
|
4365 const boolean multibyte = bufp->multibyte; |
| 939 | 4366 |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4367 /* Failure point stack. Each place that can handle a failure further |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4368 down the line pushes a failure point on this stack. It consists of |
|
2345
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
4369 regstart, and regend for all registers corresponding to |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4370 the subexpressions we're currently inside, plus the number of such |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4371 registers, and, finally, two char *'s. The first char * is where |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4372 to resume scanning the pattern; the second one is where to resume |
|
2345
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
4373 scanning the strings. */ |
| 941 | 4374 #ifdef MATCH_MAY_ALLOCATE /* otherwise, this is global. */ |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4375 fail_stack_type fail_stack; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4376 #endif |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4377 #ifdef DEBUG |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4378 static unsigned failure_id = 0; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4379 unsigned nfailure_points_pushed = 0, nfailure_points_popped = 0; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4380 #endif |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4381 |
|
2350
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2349
diff
changeset
|
4382 #if defined (REL_ALLOC) && defined (REGEX_MALLOC) |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4383 /* This holds the pointer to the failure stack, when |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4384 it is allocated relocatably. */ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4385 fail_stack_elt_t *failure_stack_ptr; |
|
2350
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2349
diff
changeset
|
4386 #endif |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4387 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4388 /* We fill all the registers internally, independent of what we |
| 941 | 4389 return, for use in backreferences. The number here includes |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4390 an element for register zero. */ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4391 unsigned num_regs = bufp->re_nsub + 1; |
|
515
69ba3b63e1d1
(gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents:
511
diff
changeset
|
4392 |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4393 /* Information on the contents of registers. These are pointers into |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4394 the input strings; they record just what was matched (on this |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4395 attempt) by a subexpression part of the pattern, that is, the |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4396 regnum-th regstart pointer points to where in the pattern we began |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4397 matching and the regnum-th regend points to right after where we |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4398 stopped matching the regnum-th subexpression. (The zeroth register |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4399 keeps track of what the whole pattern matches.) */ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4400 #ifdef MATCH_MAY_ALLOCATE /* otherwise, these are global. */ |
|
2349
5fa185a9956e
* regex.c: Declare a new type `re_char' used throughout the code for the
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2345
diff
changeset
|
4401 re_char **regstart, **regend; |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4402 #endif |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4403 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4404 /* The following record the register info as found in the above |
|
515
69ba3b63e1d1
(gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents:
511
diff
changeset
|
4405 variables when we find a match better than any we've seen before. |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4406 This happens as we backtrack through the failure points, which in |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4407 turn happens only if we have not yet matched the entire string. */ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4408 unsigned best_regs_set = false; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4409 #ifdef MATCH_MAY_ALLOCATE /* otherwise, these are global. */ |
|
2349
5fa185a9956e
* regex.c: Declare a new type `re_char' used throughout the code for the
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2345
diff
changeset
|
4410 re_char **best_regstart, **best_regend; |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4411 #endif |
|
515
69ba3b63e1d1
(gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents:
511
diff
changeset
|
4412 |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4413 /* Logically, this is `best_regend[0]'. But we don't want to have to |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4414 allocate space for that if we're not allocating space for anything |
| 941 | 4415 else (see below). Also, we never need info about register 0 for |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4416 any of the other register vectors, and it seems rather a kludge to |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4417 treat `best_regend' differently than the rest. So we keep track of |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4418 the end of the best match so far in a separate variable. We |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4419 initialize this to NULL so that when we backtrack the first time |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4420 and need to test it, it's not garbage. */ |
|
2349
5fa185a9956e
* regex.c: Declare a new type `re_char' used throughout the code for the
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2345
diff
changeset
|
4421 re_char *match_end = NULL; |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4422 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4423 #ifdef DEBUG |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4424 /* Counts the total number of registers pushed. */ |
|
515
69ba3b63e1d1
(gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents:
511
diff
changeset
|
4425 unsigned num_regs_pushed = 0; |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4426 #endif |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4427 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4428 DEBUG_PRINT1 ("\n\nEntering re_match_2.\n"); |
|
515
69ba3b63e1d1
(gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents:
511
diff
changeset
|
4429 |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4430 INIT_FAIL_STACK (); |
|
515
69ba3b63e1d1
(gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents:
511
diff
changeset
|
4431 |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4432 #ifdef MATCH_MAY_ALLOCATE |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4433 /* Do not bother to initialize all the register variables if there are |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4434 no groups in the pattern, as it takes a fair amount of time. If |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4435 there are groups, we include space for register 0 (the whole |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4436 pattern), even though we never use it, since it simplifies the |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4437 array indexing. We should fix this. */ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4438 if (bufp->re_nsub) |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4439 { |
|
2349
5fa185a9956e
* regex.c: Declare a new type `re_char' used throughout the code for the
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2345
diff
changeset
|
4440 regstart = REGEX_TALLOC (num_regs, re_char *); |
|
5fa185a9956e
* regex.c: Declare a new type `re_char' used throughout the code for the
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2345
diff
changeset
|
4441 regend = REGEX_TALLOC (num_regs, re_char *); |
|
5fa185a9956e
* regex.c: Declare a new type `re_char' used throughout the code for the
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2345
diff
changeset
|
4442 best_regstart = REGEX_TALLOC (num_regs, re_char *); |
|
5fa185a9956e
* regex.c: Declare a new type `re_char' used throughout the code for the
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2345
diff
changeset
|
4443 best_regend = REGEX_TALLOC (num_regs, re_char *); |
|
2345
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
4444 |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
4445 if (!(regstart && regend && best_regstart && best_regend)) |
| 941 | 4446 { |
| 4447 FREE_VARIABLES (); | |
| 4448 return -2; | |
| 4449 } | |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4450 } |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4451 else |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4452 { |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4453 /* We must initialize all our variables to NULL, so that |
| 941 | 4454 `FREE_VARIABLES' doesn't try to free them. */ |
|
2345
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
4455 regstart = regend = best_regstart = best_regend = NULL; |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4456 } |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4457 #endif /* MATCH_MAY_ALLOCATE */ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4458 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4459 /* The starting position is bogus. */ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4460 if (pos < 0 || pos > size1 + size2) |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4461 { |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4462 FREE_VARIABLES (); |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4463 return -1; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4464 } |
|
515
69ba3b63e1d1
(gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents:
511
diff
changeset
|
4465 |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4466 /* Initialize subexpression text positions to -1 to mark ones that no |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4467 start_memory/stop_memory has been seen for. Also initialize the |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4468 register information struct. */ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4469 for (mcnt = 1; mcnt < num_regs; mcnt++) |
|
2350
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2349
diff
changeset
|
4470 regstart[mcnt] = regend[mcnt] = REG_UNSET_VALUE; |
|
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2349
diff
changeset
|
4471 |
|
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2349
diff
changeset
|
4472 /* Shorten strings to `stop'. */ |
|
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2349
diff
changeset
|
4473 if (stop <= size1) |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4474 { |
|
2350
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2349
diff
changeset
|
4475 size1 = stop; |
|
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2349
diff
changeset
|
4476 size2 = 0; |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4477 } |
|
2350
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2349
diff
changeset
|
4478 else if (stop <= size1 + size2) |
|
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2349
diff
changeset
|
4479 size2 = stop - size1; |
|
515
69ba3b63e1d1
(gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents:
511
diff
changeset
|
4480 |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4481 /* We move `string1' into `string2' if the latter's empty -- but not if |
| 941 | 4482 `string1' is null. */ |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4483 if (size2 == 0 && string1 != NULL) |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4484 { |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4485 string2 = string1; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4486 size2 = size1; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4487 string1 = 0; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4488 size1 = 0; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4489 } |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4490 end1 = string1 + size1; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4491 end2 = string2 + size2; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4492 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4493 /* Compute where to stop matching, within the two strings. */ |
|
2350
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2349
diff
changeset
|
4494 end_match_1 = end1; |
|
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2349
diff
changeset
|
4495 end_match_2 = end2; |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4496 |
|
515
69ba3b63e1d1
(gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents:
511
diff
changeset
|
4497 /* `p' scans through the pattern as `d' scans through the data. |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4498 `dend' is the end of the input string that `d' points within. `d' |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4499 is advanced into the following input string whenever necessary, but |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4500 this happens before fetching; therefore, at the beginning of the |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4501 loop, `d' can be pointing at the end of a string, but it cannot |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4502 equal `string2'. */ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4503 if (size1 > 0 && pos <= size1) |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4504 { |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4505 d = string1 + pos; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4506 dend = end_match_1; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4507 } |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4508 else |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4509 { |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4510 d = string2 + pos - size1; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4511 dend = end_match_2; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4512 } |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4513 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4514 DEBUG_PRINT1 ("The compiled pattern is: "); |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4515 DEBUG_PRINT_COMPILED_PATTERN (bufp, p, pend); |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4516 DEBUG_PRINT1 ("The string to match is: `"); |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4517 DEBUG_PRINT_DOUBLE_STRING (d, string1, size1, string2, size2); |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4518 DEBUG_PRINT1 ("'\n"); |
|
515
69ba3b63e1d1
(gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents:
511
diff
changeset
|
4519 |
| 941 | 4520 /* This loops over pattern commands. It exits by returning from the |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4521 function if the match is complete, or it drops through if the match |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4522 fails at this starting point in the input data. */ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4523 for (;;) |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4524 { |
|
2345
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
4525 DEBUG_PRINT2 ("\n%p: ", p); |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4526 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4527 if (p == pend) |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4528 { /* End of pattern means we might have succeeded. */ |
| 941 | 4529 DEBUG_PRINT1 ("end of pattern ... "); |
|
515
69ba3b63e1d1
(gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents:
511
diff
changeset
|
4530 |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4531 /* If we haven't matched the entire string, and we want the |
| 941 | 4532 longest match, try backtracking. */ |
| 4533 if (d != end_match_2) | |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4534 { |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4535 /* 1 if this match ends in the same string (string1 or string2) |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4536 as the best previous match. */ |
|
515
69ba3b63e1d1
(gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents:
511
diff
changeset
|
4537 boolean same_str_p = (FIRST_STRING_P (match_end) |
|
2350
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2349
diff
changeset
|
4538 == FIRST_STRING_P (d)); |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4539 /* 1 if this match is the best seen so far. */ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4540 boolean best_match_p; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4541 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4542 /* AIX compiler got confused when this was combined |
| 941 | 4543 with the previous declaration. */ |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4544 if (same_str_p) |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4545 best_match_p = d > match_end; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4546 else |
|
2350
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2349
diff
changeset
|
4547 best_match_p = !FIRST_STRING_P (d); |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4548 |
| 941 | 4549 DEBUG_PRINT1 ("backtracking.\n"); |
| 4550 | |
| 4551 if (!FAIL_STACK_EMPTY ()) | |
| 4552 { /* More failure points to try. */ | |
| 4553 | |
| 4554 /* If exceeds best match so far, save it. */ | |
| 4555 if (!best_regs_set || best_match_p) | |
| 4556 { | |
| 4557 best_regs_set = true; | |
| 4558 match_end = d; | |
| 4559 | |
| 4560 DEBUG_PRINT1 ("\nSAVING match as best so far.\n"); | |
| 4561 | |
| 4562 for (mcnt = 1; mcnt < num_regs; mcnt++) | |
| 4563 { | |
| 4564 best_regstart[mcnt] = regstart[mcnt]; | |
| 4565 best_regend[mcnt] = regend[mcnt]; | |
| 4566 } | |
| 4567 } | |
| 4568 goto fail; | |
| 4569 } | |
| 4570 | |
| 4571 /* If no failure points, don't restore garbage. And if | |
| 4572 last match is real best match, don't restore second | |
| 4573 best one. */ | |
| 4574 else if (best_regs_set && !best_match_p) | |
| 4575 { | |
| 4576 restore_best_regs: | |
| 4577 /* Restore best match. It may happen that `dend == | |
| 4578 end_match_1' while the restored d is in string2. | |
| 4579 For example, the pattern `x.*y.*z' against the | |
| 4580 strings `x-' and `y-z-', if the two strings are | |
| 4581 not consecutive in memory. */ | |
| 4582 DEBUG_PRINT1 ("Restoring best registers.\n"); | |
| 4583 | |
| 4584 d = match_end; | |
| 4585 dend = ((d >= string1 && d <= end1) | |
| 4586 ? end_match_1 : end_match_2); | |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4587 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4588 for (mcnt = 1; mcnt < num_regs; mcnt++) |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4589 { |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4590 regstart[mcnt] = best_regstart[mcnt]; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4591 regend[mcnt] = best_regend[mcnt]; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4592 } |
| 941 | 4593 } |
| 4594 } /* d != end_match_2 */ | |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4595 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4596 succeed_label: |
| 941 | 4597 DEBUG_PRINT1 ("Accepting match.\n"); |
| 4598 | |
| 4599 /* If caller wants register contents data back, do it. */ | |
| 4600 if (regs && !bufp->no_sub) | |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4601 { |
| 941 | 4602 /* Have the register data arrays been allocated? */ |
| 4603 if (bufp->regs_allocated == REGS_UNALLOCATED) | |
| 4604 { /* No. So allocate them with malloc. We need one | |
| 4605 extra element beyond `num_regs' for the `-1' marker | |
| 4606 GNU code uses. */ | |
| 4607 regs->num_regs = MAX (RE_NREGS, num_regs + 1); | |
| 4608 regs->start = TALLOC (regs->num_regs, regoff_t); | |
| 4609 regs->end = TALLOC (regs->num_regs, regoff_t); | |
| 4610 if (regs->start == NULL || regs->end == NULL) | |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4611 { |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4612 FREE_VARIABLES (); |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4613 return -2; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4614 } |
| 941 | 4615 bufp->regs_allocated = REGS_REALLOCATE; |
| 4616 } | |
| 4617 else if (bufp->regs_allocated == REGS_REALLOCATE) | |
| 4618 { /* Yes. If we need more elements than were already | |
| 4619 allocated, reallocate them. If we need fewer, just | |
| 4620 leave it alone. */ | |
| 4621 if (regs->num_regs < num_regs + 1) | |
| 4622 { | |
| 4623 regs->num_regs = num_regs + 1; | |
| 4624 RETALLOC (regs->start, regs->num_regs, regoff_t); | |
| 4625 RETALLOC (regs->end, regs->num_regs, regoff_t); | |
| 4626 if (regs->start == NULL || regs->end == NULL) | |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4627 { |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4628 FREE_VARIABLES (); |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4629 return -2; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4630 } |
| 941 | 4631 } |
| 4632 } | |
| 4633 else | |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4634 { |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4635 /* These braces fend off a "empty body in an else-statement" |
| 941 | 4636 warning under GCC when assert expands to nothing. */ |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4637 assert (bufp->regs_allocated == REGS_FIXED); |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4638 } |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4639 |
| 941 | 4640 /* Convert the pointer data in `regstart' and `regend' to |
| 4641 indices. Register zero has to be set differently, | |
| 4642 since we haven't kept track of any info for it. */ | |
| 4643 if (regs->num_regs > 0) | |
| 4644 { | |
| 4645 regs->start[0] = pos; | |
|
2350
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2349
diff
changeset
|
4646 regs->end[0] = POINTER_TO_OFFSET (d); |
| 941 | 4647 } |
| 4648 | |
| 4649 /* Go through the first `min (num_regs, regs->num_regs)' | |
| 4650 registers, since that is all we initialized. */ | |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4651 for (mcnt = 1; mcnt < MIN (num_regs, regs->num_regs); mcnt++) |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4652 { |
| 941 | 4653 if (REG_UNSET (regstart[mcnt]) || REG_UNSET (regend[mcnt])) |
| 4654 regs->start[mcnt] = regs->end[mcnt] = -1; | |
| 4655 else | |
| 4656 { | |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4657 regs->start[mcnt] |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4658 = (regoff_t) POINTER_TO_OFFSET (regstart[mcnt]); |
| 941 | 4659 regs->end[mcnt] |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4660 = (regoff_t) POINTER_TO_OFFSET (regend[mcnt]); |
| 941 | 4661 } |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4662 } |
|
515
69ba3b63e1d1
(gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents:
511
diff
changeset
|
4663 |
| 941 | 4664 /* If the regs structure we return has more elements than |
| 4665 were in the pattern, set the extra elements to -1. If | |
| 4666 we (re)allocated the registers, this is the case, | |
| 4667 because we always allocate enough to have at least one | |
| 4668 -1 at the end. */ | |
| 4669 for (mcnt = num_regs; mcnt < regs->num_regs; mcnt++) | |
| 4670 regs->start[mcnt] = regs->end[mcnt] = -1; | |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4671 } /* regs && !bufp->no_sub */ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4672 |
| 941 | 4673 DEBUG_PRINT4 ("%u failure points pushed, %u popped (%u remain).\n", |
| 4674 nfailure_points_pushed, nfailure_points_popped, | |
| 4675 nfailure_points_pushed - nfailure_points_popped); | |
| 4676 DEBUG_PRINT2 ("%u registers pushed.\n", num_regs_pushed); | |
| 4677 | |
|
2350
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2349
diff
changeset
|
4678 mcnt = POINTER_TO_OFFSET (d) - pos; |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4679 |
| 941 | 4680 DEBUG_PRINT2 ("Returning %d from re_match_2.\n", mcnt); |
| 4681 | |
| 4682 FREE_VARIABLES (); | |
| 4683 return mcnt; | |
| 4684 } | |
| 4685 | |
| 4686 /* Otherwise match next pattern command. */ | |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4687 switch (SWITCH_ENUM_CAST ((re_opcode_t) *p++)) |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4688 { |
| 941 | 4689 /* Ignore these. Used to ignore the n of succeed_n's which |
| 4690 currently have n == 0. */ | |
| 4691 case no_op: | |
| 4692 DEBUG_PRINT1 ("EXECUTING no_op.\n"); | |
| 4693 break; | |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4694 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4695 case succeed: |
| 941 | 4696 DEBUG_PRINT1 ("EXECUTING succeed.\n"); |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4697 goto succeed_label; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4698 |
| 941 | 4699 /* Match the next n pattern characters exactly. The following |
| 4700 byte in the pattern defines n, and the n bytes after that | |
| 4701 are the characters to match. */ | |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4702 case exactn: |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4703 mcnt = *p++; |
| 941 | 4704 DEBUG_PRINT2 ("EXECUTING exactn %d.\n", mcnt); |
| 4705 | |
|
2350
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2349
diff
changeset
|
4706 /* Remember the start point to rollback upon failure. */ |
|
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2349
diff
changeset
|
4707 dfail = d; |
|
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2349
diff
changeset
|
4708 |
| 941 | 4709 /* This is written out as an if-else so we don't waste time |
| 4710 testing `translate' inside the loop. */ | |
|
1328
0aa10b723959
Use RE_TRANSLATE_P to check whether translation is
Andreas Schwab <schwab@suse.de>
parents:
1326
diff
changeset
|
4711 if (RE_TRANSLATE_P (translate)) |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4712 { |
|
1296
7b938cc81ae2
(compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents:
1218
diff
changeset
|
4713 #ifdef emacs |
|
7b938cc81ae2
(compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents:
1218
diff
changeset
|
4714 if (multibyte) |
|
7b938cc81ae2
(compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents:
1218
diff
changeset
|
4715 do |
|
7b938cc81ae2
(compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents:
1218
diff
changeset
|
4716 { |
|
7b938cc81ae2
(compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents:
1218
diff
changeset
|
4717 int pat_charlen, buf_charlen; |
|
1312
a9a56c9deb21
(re_match_2_internal): Declare buf_ch unsigned int.
Richard Stallman <rms@gnu.org>
parents:
1297
diff
changeset
|
4718 unsigned int pat_ch, buf_ch; |
|
1296
7b938cc81ae2
(compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents:
1218
diff
changeset
|
4719 |
|
7b938cc81ae2
(compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents:
1218
diff
changeset
|
4720 PREFETCH (); |
|
7b938cc81ae2
(compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents:
1218
diff
changeset
|
4721 pat_ch = STRING_CHAR_AND_LENGTH (p, pend - p, pat_charlen); |
|
7b938cc81ae2
(compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents:
1218
diff
changeset
|
4722 buf_ch = STRING_CHAR_AND_LENGTH (d, dend - d, buf_charlen); |
|
7b938cc81ae2
(compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents:
1218
diff
changeset
|
4723 |
|
7b938cc81ae2
(compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents:
1218
diff
changeset
|
4724 if (RE_TRANSLATE (translate, buf_ch) |
|
7b938cc81ae2
(compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents:
1218
diff
changeset
|
4725 != pat_ch) |
|
2350
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2349
diff
changeset
|
4726 { |
|
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2349
diff
changeset
|
4727 d = dfail; |
|
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2349
diff
changeset
|
4728 goto fail; |
|
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2349
diff
changeset
|
4729 } |
|
1296
7b938cc81ae2
(compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents:
1218
diff
changeset
|
4730 |
|
7b938cc81ae2
(compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents:
1218
diff
changeset
|
4731 p += pat_charlen; |
|
7b938cc81ae2
(compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents:
1218
diff
changeset
|
4732 d += buf_charlen; |
|
7b938cc81ae2
(compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents:
1218
diff
changeset
|
4733 mcnt -= pat_charlen; |
|
7b938cc81ae2
(compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents:
1218
diff
changeset
|
4734 } |
|
7b938cc81ae2
(compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents:
1218
diff
changeset
|
4735 while (mcnt > 0); |
|
7b938cc81ae2
(compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents:
1218
diff
changeset
|
4736 else |
|
7b938cc81ae2
(compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents:
1218
diff
changeset
|
4737 #endif /* not emacs */ |
|
7b938cc81ae2
(compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents:
1218
diff
changeset
|
4738 do |
|
7b938cc81ae2
(compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents:
1218
diff
changeset
|
4739 { |
|
7b938cc81ae2
(compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents:
1218
diff
changeset
|
4740 PREFETCH (); |
|
2349
5fa185a9956e
* regex.c: Declare a new type `re_char' used throughout the code for the
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2345
diff
changeset
|
4741 if (RE_TRANSLATE (translate, *d) != *p++) |
|
2350
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2349
diff
changeset
|
4742 { |
|
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2349
diff
changeset
|
4743 d = dfail; |
|
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2349
diff
changeset
|
4744 goto fail; |
|
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2349
diff
changeset
|
4745 } |
|
1381
24423cbaf6a9
(re_search_2): Don't use ++ inside RE_TRANSLATE.
Richard Stallman <rms@gnu.org>
parents:
1342
diff
changeset
|
4746 d++; |
|
1296
7b938cc81ae2
(compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents:
1218
diff
changeset
|
4747 } |
|
7b938cc81ae2
(compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents:
1218
diff
changeset
|
4748 while (--mcnt); |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4749 } |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4750 else |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4751 { |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4752 do |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4753 { |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4754 PREFETCH (); |
|
2350
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2349
diff
changeset
|
4755 if (*d++ != *p++) |
|
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2349
diff
changeset
|
4756 { |
|
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2349
diff
changeset
|
4757 d = dfail; |
|
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2349
diff
changeset
|
4758 goto fail; |
|
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2349
diff
changeset
|
4759 } |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4760 } |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4761 while (--mcnt); |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4762 } |
| 941 | 4763 break; |
| 4764 | |
| 4765 | |
| 4766 /* Match any character except possibly a newline or a null. */ | |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4767 case anychar: |
|
1296
7b938cc81ae2
(compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents:
1218
diff
changeset
|
4768 { |
|
7b938cc81ae2
(compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents:
1218
diff
changeset
|
4769 int buf_charlen; |
|
1312
a9a56c9deb21
(re_match_2_internal): Declare buf_ch unsigned int.
Richard Stallman <rms@gnu.org>
parents:
1297
diff
changeset
|
4770 unsigned int buf_ch; |
|
1296
7b938cc81ae2
(compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents:
1218
diff
changeset
|
4771 |
|
7b938cc81ae2
(compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents:
1218
diff
changeset
|
4772 DEBUG_PRINT1 ("EXECUTING anychar.\n"); |
|
7b938cc81ae2
(compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents:
1218
diff
changeset
|
4773 |
|
7b938cc81ae2
(compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents:
1218
diff
changeset
|
4774 PREFETCH (); |
|
7b938cc81ae2
(compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents:
1218
diff
changeset
|
4775 |
|
7b938cc81ae2
(compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents:
1218
diff
changeset
|
4776 #ifdef emacs |
|
7b938cc81ae2
(compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents:
1218
diff
changeset
|
4777 if (multibyte) |
|
7b938cc81ae2
(compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents:
1218
diff
changeset
|
4778 buf_ch = STRING_CHAR_AND_LENGTH (d, dend - d, buf_charlen); |
|
7b938cc81ae2
(compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents:
1218
diff
changeset
|
4779 else |
|
7b938cc81ae2
(compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents:
1218
diff
changeset
|
4780 #endif /* not emacs */ |
|
7b938cc81ae2
(compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents:
1218
diff
changeset
|
4781 { |
|
2349
5fa185a9956e
* regex.c: Declare a new type `re_char' used throughout the code for the
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2345
diff
changeset
|
4782 buf_ch = *d; |
|
1296
7b938cc81ae2
(compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents:
1218
diff
changeset
|
4783 buf_charlen = 1; |
|
7b938cc81ae2
(compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents:
1218
diff
changeset
|
4784 } |
|
7b938cc81ae2
(compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents:
1218
diff
changeset
|
4785 |
|
7b938cc81ae2
(compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents:
1218
diff
changeset
|
4786 buf_ch = TRANSLATE (buf_ch); |
|
7b938cc81ae2
(compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents:
1218
diff
changeset
|
4787 |
|
7b938cc81ae2
(compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents:
1218
diff
changeset
|
4788 if ((!(bufp->syntax & RE_DOT_NEWLINE) |
|
7b938cc81ae2
(compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents:
1218
diff
changeset
|
4789 && buf_ch == '\n') |
|
7b938cc81ae2
(compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents:
1218
diff
changeset
|
4790 || ((bufp->syntax & RE_DOT_NOT_NULL) |
|
7b938cc81ae2
(compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents:
1218
diff
changeset
|
4791 && buf_ch == '\000')) |
|
7b938cc81ae2
(compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents:
1218
diff
changeset
|
4792 goto fail; |
|
7b938cc81ae2
(compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents:
1218
diff
changeset
|
4793 |
|
7b938cc81ae2
(compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents:
1218
diff
changeset
|
4794 DEBUG_PRINT2 (" Matched `%d'.\n", *d); |
|
7b938cc81ae2
(compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents:
1218
diff
changeset
|
4795 d += buf_charlen; |
|
7b938cc81ae2
(compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents:
1218
diff
changeset
|
4796 } |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4797 break; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4798 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4799 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4800 case charset: |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4801 case charset_not: |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4802 { |
| 939 | 4803 register unsigned int c; |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4804 boolean not = (re_opcode_t) *(p - 1) == charset_not; |
| 939 | 4805 int len; |
| 4806 | |
| 4807 /* Start of actual range_table, or end of bitmap if there is no | |
| 4808 range table. */ | |
| 4809 unsigned char *range_table; | |
| 4810 | |
|
1933
5ffa81ab1988
[emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents:
1660
diff
changeset
|
4811 /* Nonzero if there is a range table. */ |
| 939 | 4812 int range_table_exists; |
| 4813 | |
|
1933
5ffa81ab1988
[emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents:
1660
diff
changeset
|
4814 /* Number of ranges of range table. This is not included |
|
5ffa81ab1988
[emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents:
1660
diff
changeset
|
4815 in the initial byte-length of the command. */ |
|
5ffa81ab1988
[emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents:
1660
diff
changeset
|
4816 int count = 0; |
| 939 | 4817 |
| 941 | 4818 DEBUG_PRINT2 ("EXECUTING charset%s.\n", not ? "_not" : ""); |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4819 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4820 PREFETCH (); |
|
2349
5fa185a9956e
* regex.c: Declare a new type `re_char' used throughout the code for the
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2345
diff
changeset
|
4821 c = *d; |
| 939 | 4822 |
| 4823 range_table_exists = CHARSET_RANGE_TABLE_EXISTS_P (&p[-1]); | |
|
1933
5ffa81ab1988
[emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents:
1660
diff
changeset
|
4824 |
|
5ffa81ab1988
[emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents:
1660
diff
changeset
|
4825 #ifdef emacs |
| 939 | 4826 if (range_table_exists) |
|
1933
5ffa81ab1988
[emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents:
1660
diff
changeset
|
4827 { |
|
5ffa81ab1988
[emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents:
1660
diff
changeset
|
4828 range_table = CHARSET_RANGE_TABLE (&p[-1]); /* Past the bitmap. */ |
|
5ffa81ab1988
[emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents:
1660
diff
changeset
|
4829 EXTRACT_NUMBER_AND_INCR (count, range_table); |
|
5ffa81ab1988
[emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents:
1660
diff
changeset
|
4830 } |
| 939 | 4831 |
| 4832 if (multibyte && BASE_LEADING_CODE_P (c)) | |
| 4833 c = STRING_CHAR_AND_LENGTH (d, dend - d, len); | |
|
1933
5ffa81ab1988
[emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents:
1660
diff
changeset
|
4834 #endif /* emacs */ |
| 939 | 4835 |
| 4836 if (SINGLE_BYTE_CHAR_P (c)) | |
| 4837 { /* Lookup bitmap. */ | |
| 4838 c = TRANSLATE (c); /* The character to match. */ | |
| 4839 len = 1; | |
| 4840 | |
| 4841 /* Cast to `unsigned' instead of `unsigned char' in | |
| 4842 case the bit list is a full 32 bytes long. */ | |
| 4843 if (c < (unsigned) (CHARSET_BITMAP_SIZE (&p[-1]) * BYTEWIDTH) | |
|
1933
5ffa81ab1988
[emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents:
1660
diff
changeset
|
4844 && p[1 + c / BYTEWIDTH] & (1 << (c % BYTEWIDTH))) |
|
5ffa81ab1988
[emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents:
1660
diff
changeset
|
4845 not = !not; |
| 939 | 4846 } |
|
1933
5ffa81ab1988
[emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents:
1660
diff
changeset
|
4847 #ifdef emacs |
| 939 | 4848 else if (range_table_exists) |
|
1933
5ffa81ab1988
[emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents:
1660
diff
changeset
|
4849 { |
|
5ffa81ab1988
[emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents:
1660
diff
changeset
|
4850 int class_bits = CHARSET_RANGE_TABLE_BITS (&p[-1]); |
|
5ffa81ab1988
[emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents:
1660
diff
changeset
|
4851 |
|
5ffa81ab1988
[emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents:
1660
diff
changeset
|
4852 if ( (class_bits & BIT_ALNUM && ISALNUM (c)) |
|
5ffa81ab1988
[emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents:
1660
diff
changeset
|
4853 | (class_bits & BIT_ALPHA && ISALPHA (c)) |
|
1965
058a9ce57dd7
1999-09-04 Richard Stallman <rms@gnu.org>
Dave Love <fx@gnu.org>
parents:
1933
diff
changeset
|
4854 | (class_bits & BIT_ASCII && IS_REAL_ASCII (c)) |
|
1933
5ffa81ab1988
[emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents:
1660
diff
changeset
|
4855 | (class_bits & BIT_GRAPH && ISGRAPH (c)) |
|
5ffa81ab1988
[emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents:
1660
diff
changeset
|
4856 | (class_bits & BIT_LOWER && ISLOWER (c)) |
|
1965
058a9ce57dd7
1999-09-04 Richard Stallman <rms@gnu.org>
Dave Love <fx@gnu.org>
parents:
1933
diff
changeset
|
4857 | (class_bits & BIT_MULTIBYTE && !ISUNIBYTE (c)) |
|
058a9ce57dd7
1999-09-04 Richard Stallman <rms@gnu.org>
Dave Love <fx@gnu.org>
parents:
1933
diff
changeset
|
4858 | (class_bits & BIT_NONASCII && !IS_REAL_ASCII (c)) |
|
1933
5ffa81ab1988
[emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents:
1660
diff
changeset
|
4859 | (class_bits & BIT_PRINT && ISPRINT (c)) |
|
5ffa81ab1988
[emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents:
1660
diff
changeset
|
4860 | (class_bits & BIT_PUNCT && ISPUNCT (c)) |
|
5ffa81ab1988
[emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents:
1660
diff
changeset
|
4861 | (class_bits & BIT_SPACE && ISSPACE (c)) |
|
1965
058a9ce57dd7
1999-09-04 Richard Stallman <rms@gnu.org>
Dave Love <fx@gnu.org>
parents:
1933
diff
changeset
|
4862 | (class_bits & BIT_UNIBYTE && ISUNIBYTE (c)) |
|
1933
5ffa81ab1988
[emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents:
1660
diff
changeset
|
4863 | (class_bits & BIT_UPPER && ISUPPER (c)) |
|
5ffa81ab1988
[emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents:
1660
diff
changeset
|
4864 | (class_bits & BIT_WORD && ISWORD (c))) |
|
5ffa81ab1988
[emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents:
1660
diff
changeset
|
4865 not = !not; |
|
5ffa81ab1988
[emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents:
1660
diff
changeset
|
4866 else |
|
5ffa81ab1988
[emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents:
1660
diff
changeset
|
4867 CHARSET_LOOKUP_RANGE_TABLE_RAW (not, c, range_table, count); |
|
5ffa81ab1988
[emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents:
1660
diff
changeset
|
4868 } |
|
5ffa81ab1988
[emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents:
1660
diff
changeset
|
4869 #endif /* emacs */ |
|
5ffa81ab1988
[emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents:
1660
diff
changeset
|
4870 |
|
5ffa81ab1988
[emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents:
1660
diff
changeset
|
4871 if (range_table_exists) |
|
5ffa81ab1988
[emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents:
1660
diff
changeset
|
4872 p = CHARSET_RANGE_TABLE_END (range_table, count); |
|
5ffa81ab1988
[emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents:
1660
diff
changeset
|
4873 else |
|
5ffa81ab1988
[emacs]: Handle character classes for multibyte chars:
Richard Stallman <rms@gnu.org>
parents:
1660
diff
changeset
|
4874 p += CHARSET_BITMAP_SIZE (&p[-1]) + 1; |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4875 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4876 if (!not) goto fail; |
|
515
69ba3b63e1d1
(gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents:
511
diff
changeset
|
4877 |
| 939 | 4878 d += len; |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4879 break; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4880 } |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4881 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4882 |
| 941 | 4883 /* The beginning of a group is represented by start_memory. |
|
2345
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
4884 The argument is the register number. The text |
| 941 | 4885 matched within the group is recorded (in the internal |
| 4886 registers data structure) under the register number. */ | |
| 4887 case start_memory: | |
|
2345
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
4888 DEBUG_PRINT2 ("EXECUTING start_memory %d:\n", *p); |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
4889 |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
4890 /* In case we need to undo this operation (via backtracking). */ |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
4891 PUSH_FAILURE_REG ((unsigned int)*p); |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4892 |
| 941 | 4893 regstart[*p] = d; |
|
2345
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
4894 regend[*p] = REG_UNSET_VALUE; /* probably unnecessary. -sm */ |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4895 DEBUG_PRINT2 (" regstart: %d\n", POINTER_TO_OFFSET (regstart[*p])); |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4896 |
| 941 | 4897 /* Move past the register number and inner group count. */ |
|
2345
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
4898 p += 1; |
| 941 | 4899 break; |
| 4900 | |
| 4901 | |
| 4902 /* The stop_memory opcode represents the end of a group. Its | |
|
2345
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
4903 argument is the same as start_memory's: the register number. */ |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4904 case stop_memory: |
|
2345
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
4905 DEBUG_PRINT2 ("EXECUTING stop_memory %d:\n", *p); |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
4906 |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
4907 assert (!REG_UNSET (regstart[*p])); |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
4908 /* Strictly speaking, there should be code such as: |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
4909 |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
4910 assert (REG_UNSET (regend[*p])); |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
4911 PUSH_FAILURE_REGSTOP ((unsigned int)*p); |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
4912 |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
4913 But the only info to be pushed is regend[*p] and it is known to |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
4914 be UNSET, so there really isn't anything to push. |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
4915 Not pushing anything, on the other hand deprives us from the |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
4916 guarantee that regend[*p] is UNSET since undoing this operation |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
4917 will not reset its value properly. This is not important since |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
4918 the value will only be read on the next start_memory or at |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
4919 the very end and both events can only happen if this stop_memory |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
4920 is *not* undone. */ |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4921 |
| 941 | 4922 regend[*p] = d; |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4923 DEBUG_PRINT2 (" regend: %d\n", POINTER_TO_OFFSET (regend[*p])); |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4924 |
| 941 | 4925 /* Move past the register number and the inner group count. */ |
|
2345
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
4926 p += 1; |
| 941 | 4927 break; |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4928 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4929 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4930 /* \<digit> has been turned into a `duplicate' command which is |
| 941 | 4931 followed by the numeric value of <digit> as the register number. */ |
| 4932 case duplicate: | |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4933 { |
|
2349
5fa185a9956e
* regex.c: Declare a new type `re_char' used throughout the code for the
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2345
diff
changeset
|
4934 register re_char *d2, *dend2; |
| 941 | 4935 int regno = *p++; /* Get which register to match against. */ |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4936 DEBUG_PRINT2 ("EXECUTING duplicate %d.\n", regno); |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4937 |
| 941 | 4938 /* Can't back reference a group which we've never matched. */ |
| 4939 if (REG_UNSET (regstart[regno]) || REG_UNSET (regend[regno])) | |
| 4940 goto fail; | |
| 4941 | |
| 4942 /* Where in input to try to start matching. */ | |
| 4943 d2 = regstart[regno]; | |
| 4944 | |
|
2350
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2349
diff
changeset
|
4945 /* Remember the start point to rollback upon failure. */ |
|
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2349
diff
changeset
|
4946 dfail = d; |
|
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2349
diff
changeset
|
4947 |
| 941 | 4948 /* Where to stop matching; if both the place to start and |
| 4949 the place to stop matching are in the same string, then | |
| 4950 set to the place to stop, otherwise, for now have to use | |
| 4951 the end of the first string. */ | |
| 4952 | |
| 4953 dend2 = ((FIRST_STRING_P (regstart[regno]) | |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4954 == FIRST_STRING_P (regend[regno])) |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4955 ? regend[regno] : end_match_1); |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4956 for (;;) |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4957 { |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4958 /* If necessary, advance to next segment in register |
| 941 | 4959 contents. */ |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4960 while (d2 == dend2) |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4961 { |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4962 if (dend2 == end_match_2) break; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4963 if (dend2 == regend[regno]) break; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4964 |
| 941 | 4965 /* End of string1 => advance to string2. */ |
| 4966 d2 = string2; | |
| 4967 dend2 = regend[regno]; | |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4968 } |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4969 /* At end of register contents => success */ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4970 if (d2 == dend2) break; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4971 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4972 /* If necessary, advance to next segment in data. */ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4973 PREFETCH (); |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4974 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4975 /* How many characters left in this segment to match. */ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4976 mcnt = dend - d; |
|
515
69ba3b63e1d1
(gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents:
511
diff
changeset
|
4977 |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4978 /* Want how many consecutive characters we can match in |
| 941 | 4979 one shot, so, if necessary, adjust the count. */ |
| 4980 if (mcnt > dend2 - d2) | |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4981 mcnt = dend2 - d2; |
|
515
69ba3b63e1d1
(gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents:
511
diff
changeset
|
4982 |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4983 /* Compare that many; failure if mismatch, else move |
| 941 | 4984 past them. */ |
|
1328
0aa10b723959
Use RE_TRANSLATE_P to check whether translation is
Andreas Schwab <schwab@suse.de>
parents:
1326
diff
changeset
|
4985 if (RE_TRANSLATE_P (translate) |
| 941 | 4986 ? bcmp_translate (d, d2, mcnt, translate) |
| 4987 : bcmp (d, d2, mcnt)) | |
|
2350
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2349
diff
changeset
|
4988 { |
|
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2349
diff
changeset
|
4989 d = dfail; |
|
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2349
diff
changeset
|
4990 goto fail; |
|
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2349
diff
changeset
|
4991 } |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4992 d += mcnt, d2 += mcnt; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4993 } |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4994 } |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4995 break; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4996 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
4997 |
| 941 | 4998 /* begline matches the empty string at the beginning of the string |
| 4999 (unless `not_bol' is set in `bufp'), and, if | |
| 5000 `newline_anchor' is set, after newlines. */ | |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5001 case begline: |
| 941 | 5002 DEBUG_PRINT1 ("EXECUTING begline.\n"); |
| 5003 | |
| 5004 if (AT_STRINGS_BEG (d)) | |
| 5005 { | |
| 5006 if (!bufp->not_bol) break; | |
| 5007 } | |
| 5008 else if (d[-1] == '\n' && bufp->newline_anchor) | |
| 5009 { | |
| 5010 break; | |
| 5011 } | |
| 5012 /* In all other cases, we fail. */ | |
| 5013 goto fail; | |
| 5014 | |
| 5015 | |
| 5016 /* endline is the dual of begline. */ | |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5017 case endline: |
| 941 | 5018 DEBUG_PRINT1 ("EXECUTING endline.\n"); |
| 5019 | |
| 5020 if (AT_STRINGS_END (d)) | |
| 5021 { | |
| 5022 if (!bufp->not_eol) break; | |
| 5023 } | |
| 5024 | |
| 5025 /* We have to ``prefetch'' the next character. */ | |
| 5026 else if ((d == end1 ? *string2 : *d) == '\n' | |
| 5027 && bufp->newline_anchor) | |
| 5028 { | |
| 5029 break; | |
| 5030 } | |
| 5031 goto fail; | |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5032 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5033 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5034 /* Match at the very beginning of the data. */ |
| 941 | 5035 case begbuf: |
| 5036 DEBUG_PRINT1 ("EXECUTING begbuf.\n"); | |
| 5037 if (AT_STRINGS_BEG (d)) | |
| 5038 break; | |
| 5039 goto fail; | |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5040 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5041 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5042 /* Match at the very end of the data. */ |
| 941 | 5043 case endbuf: |
| 5044 DEBUG_PRINT1 ("EXECUTING endbuf.\n"); | |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5045 if (AT_STRINGS_END (d)) |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5046 break; |
| 941 | 5047 goto fail; |
| 5048 | |
| 5049 | |
| 5050 /* on_failure_keep_string_jump is used to optimize `.*\n'. It | |
| 5051 pushes NULL as the value for the string on the stack. Then | |
|
2345
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
5052 `POP_FAILURE_POINT' will keep the current value for the |
| 941 | 5053 string, instead of restoring it. To see why, consider |
| 5054 matching `foo\nbar' against `.*\n'. The .* matches the foo; | |
| 5055 then the . fails against the \n. But the next thing we want | |
| 5056 to do is match the \n against the \n; if we restored the | |
| 5057 string value, we would be back at the foo. | |
| 5058 | |
| 5059 Because this is used only in specific cases, we don't need to | |
| 5060 check all the things that `on_failure_jump' does, to make | |
| 5061 sure the right things get saved on the stack. Hence we don't | |
| 5062 share its code. The only reason to push anything on the | |
| 5063 stack at all is that otherwise we would have to change | |
| 5064 `anychar's code to do something besides goto fail in this | |
| 5065 case; that seems worse than this. */ | |
| 5066 case on_failure_keep_string_jump: | |
|
2345
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
5067 EXTRACT_NUMBER_AND_INCR (mcnt, p); |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
5068 DEBUG_PRINT3 ("EXECUTING on_failure_keep_string_jump %d (to %p):\n", |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
5069 mcnt, p + mcnt); |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
5070 |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
5071 PUSH_FAILURE_POINT (p - 3, NULL); |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
5072 break; |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
5073 |
|
2355
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
5074 |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
5075 /* Simple loop detecting on_failure_jump: just check on the |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
5076 failure stack if the same spot was already hit earlier. */ |
|
2345
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
5077 case on_failure_jump_loop: |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
5078 on_failure: |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
5079 EXTRACT_NUMBER_AND_INCR (mcnt, p); |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
5080 DEBUG_PRINT3 ("EXECUTING on_failure_jump_loop %d (to %p):\n", |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
5081 mcnt, p + mcnt); |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
5082 |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
5083 CHECK_INFINITE_LOOP (p - 3, d); |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
5084 PUSH_FAILURE_POINT (p - 3, d); |
| 941 | 5085 break; |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5086 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5087 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5088 /* Uses of on_failure_jump: |
|
515
69ba3b63e1d1
(gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents:
511
diff
changeset
|
5089 |
| 941 | 5090 Each alternative starts with an on_failure_jump that points |
| 5091 to the beginning of the next alternative. Each alternative | |
| 5092 except the last ends with a jump that in effect jumps past | |
| 5093 the rest of the alternatives. (They really jump to the | |
| 5094 ending jump of the following alternative, because tensioning | |
| 5095 these jumps is a hassle.) | |
| 5096 | |
| 5097 Repeats start with an on_failure_jump that points past both | |
| 5098 the repetition text and either the following jump or | |
| 5099 pop_failure_jump back to this on_failure_jump. */ | |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5100 case on_failure_jump: |
|
1660
ef1f39a7e7c3
(re_match_2_internal) [WINDOWSNT & emacs]: Insert QUIT at various places.
Richard Stallman <rms@gnu.org>
parents:
1583
diff
changeset
|
5101 QUIT; |
| 941 | 5102 EXTRACT_NUMBER_AND_INCR (mcnt, p); |
|
2345
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
5103 DEBUG_PRINT3 ("EXECUTING on_failure_jump %d (to %p):\n", |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
5104 mcnt, p + mcnt); |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
5105 |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
5106 PUSH_FAILURE_POINT (p -3, d); |
| 941 | 5107 break; |
| 5108 | |
|
2355
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
5109 /* This operation is used for greedy *. |
|
2345
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
5110 Compare the beginning of the repeat with what in the |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
5111 pattern follows its end. If we can establish that there |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
5112 is nothing that they would both match, i.e., that we |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
5113 would have to backtrack because of (as in, e.g., `a*a') |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
5114 then we can use a non-backtracking loop based on |
|
2355
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
5115 on_failure_keep_string_jump instead of on_failure_jump. */ |
|
2345
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
5116 case on_failure_jump_smart: |
|
1660
ef1f39a7e7c3
(re_match_2_internal) [WINDOWSNT & emacs]: Insert QUIT at various places.
Richard Stallman <rms@gnu.org>
parents:
1583
diff
changeset
|
5117 QUIT; |
| 941 | 5118 EXTRACT_NUMBER_AND_INCR (mcnt, p); |
|
2345
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
5119 DEBUG_PRINT3 ("EXECUTING on_failure_jump_smart %d (to %p).\n", |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
5120 mcnt, p + mcnt); |
| 941 | 5121 { |
|
2345
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
5122 unsigned char *p1 = p; /* Next operation. */ |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
5123 unsigned char *p2 = p + mcnt; /* Destination of the jump. */ |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
5124 |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
5125 p -= 3; /* Reset so that we will re-execute the |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
5126 instruction once it's been changed. */ |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
5127 |
|
2355
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
5128 EXTRACT_NUMBER (mcnt, p2 - 2); |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
5129 |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
5130 /* Ensure this is a indeed the trivial kind of loop |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
5131 we are expecting. */ |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
5132 assert (skip_one_char (p1) == p2 - 3); |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
5133 assert ((re_opcode_t) p2[-3] == jump && p2 + mcnt == p); |
|
2350
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2349
diff
changeset
|
5134 DEBUG_STATEMENT (debug += 2); |
|
2345
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
5135 if (mutually_exclusive_p (bufp, p1, p2)) |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5136 { |
|
2345
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
5137 /* Use a fast `on_failure_keep_string_jump' loop. */ |
|
2355
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
5138 DEBUG_PRINT1 (" smart exclusive => fast loop.\n"); |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
5139 *p = (unsigned char) on_failure_keep_string_jump; |
|
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
5140 STORE_NUMBER (p2 - 2, mcnt + 3); |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5141 } |
|
2345
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
5142 else |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
5143 { |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
5144 /* Default to a safe `on_failure_jump' loop. */ |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
5145 DEBUG_PRINT1 (" smart default => slow loop.\n"); |
|
2355
0786b40fdf1c
(RE_STRING_CHAR): New macro.
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2350
diff
changeset
|
5146 *p = (unsigned char) on_failure_jump; |
|
2345
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
5147 } |
|
2350
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2349
diff
changeset
|
5148 DEBUG_STATEMENT (debug -= 2); |
| 939 | 5149 } |
|
2345
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
5150 break; |
| 941 | 5151 |
| 5152 /* Unconditionally jump (without popping any failure points). */ | |
| 5153 case jump: | |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5154 unconditional_jump: |
|
1660
ef1f39a7e7c3
(re_match_2_internal) [WINDOWSNT & emacs]: Insert QUIT at various places.
Richard Stallman <rms@gnu.org>
parents:
1583
diff
changeset
|
5155 QUIT; |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5156 EXTRACT_NUMBER_AND_INCR (mcnt, p); /* Get the amount to jump. */ |
| 941 | 5157 DEBUG_PRINT2 ("EXECUTING jump %d ", mcnt); |
| 5158 p += mcnt; /* Do the jump. */ | |
|
2345
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
5159 DEBUG_PRINT2 ("(to %p).\n", p); |
| 941 | 5160 break; |
| 5161 | |
| 5162 | |
| 5163 /* Have to succeed matching what follows at least n times. | |
| 5164 After that, handle like `on_failure_jump'. */ | |
| 5165 case succeed_n: | |
| 5166 EXTRACT_NUMBER (mcnt, p + 2); | |
| 5167 DEBUG_PRINT2 ("EXECUTING succeed_n %d.\n", mcnt); | |
| 5168 | |
| 5169 assert (mcnt >= 0); | |
| 5170 /* Originally, this is how many times we HAVE to succeed. */ | |
| 5171 if (mcnt > 0) | |
| 5172 { | |
| 5173 mcnt--; | |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5174 p += 2; |
| 941 | 5175 STORE_NUMBER_AND_INCR (p, mcnt); |
|
2345
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
5176 DEBUG_PRINT3 (" Setting %p to %d.\n", p, mcnt); |
| 941 | 5177 } |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5178 else if (mcnt == 0) |
| 941 | 5179 { |
|
2345
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
5180 DEBUG_PRINT2 (" Setting two bytes from %p to no_op.\n", p+2); |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5181 p[2] = (unsigned char) no_op; |
| 941 | 5182 p[3] = (unsigned char) no_op; |
| 5183 goto on_failure; | |
| 5184 } | |
| 5185 break; | |
| 5186 | |
| 5187 case jump_n: | |
| 5188 EXTRACT_NUMBER (mcnt, p + 2); | |
| 5189 DEBUG_PRINT2 ("EXECUTING jump_n %d.\n", mcnt); | |
| 5190 | |
| 5191 /* Originally, this is how many times we CAN jump. */ | |
| 5192 if (mcnt) | |
| 5193 { | |
| 5194 mcnt--; | |
| 5195 STORE_NUMBER (p + 2, mcnt); | |
|
515
69ba3b63e1d1
(gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents:
511
diff
changeset
|
5196 goto unconditional_jump; |
| 941 | 5197 } |
| 5198 /* If don't have to jump any more, skip over the rest of command. */ | |
|
515
69ba3b63e1d1
(gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents:
511
diff
changeset
|
5199 else |
|
69ba3b63e1d1
(gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents:
511
diff
changeset
|
5200 p += 4; |
| 941 | 5201 break; |
|
515
69ba3b63e1d1
(gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents:
511
diff
changeset
|
5202 |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5203 case set_number_at: |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5204 { |
| 941 | 5205 DEBUG_PRINT1 ("EXECUTING set_number_at.\n"); |
| 5206 | |
| 5207 EXTRACT_NUMBER_AND_INCR (mcnt, p); | |
| 5208 p1 = p + mcnt; | |
| 5209 EXTRACT_NUMBER_AND_INCR (mcnt, p); | |
|
2345
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
5210 DEBUG_PRINT3 (" Setting %p to %d.\n", p1, mcnt); |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5211 STORE_NUMBER (p1, mcnt); |
| 941 | 5212 break; |
| 5213 } | |
|
521
7089c3a3a164
(AT_WORD_BOUNDARY): Disable macro.
Karl Heuer <kwzh@gnu.org>
parents:
515
diff
changeset
|
5214 |
|
7089c3a3a164
(AT_WORD_BOUNDARY): Disable macro.
Karl Heuer <kwzh@gnu.org>
parents:
515
diff
changeset
|
5215 case wordbound: |
|
2349
5fa185a9956e
* regex.c: Declare a new type `re_char' used throughout the code for the
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2345
diff
changeset
|
5216 case notwordbound: |
|
5fa185a9956e
* regex.c: Declare a new type `re_char' used throughout the code for the
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2345
diff
changeset
|
5217 not = (re_opcode_t) *(p - 1) == notwordbound; |
|
5fa185a9956e
* regex.c: Declare a new type `re_char' used throughout the code for the
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2345
diff
changeset
|
5218 DEBUG_PRINT2 ("EXECUTING %swordbound.\n", not?"not":""); |
| 939 | 5219 |
|
2350
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2349
diff
changeset
|
5220 /* We SUCCEED (or FAIL) in one of the following cases: */ |
| 939 | 5221 |
| 5222 /* Case 1: D is at the beginning or the end of string. */ | |
|
521
7089c3a3a164
(AT_WORD_BOUNDARY): Disable macro.
Karl Heuer <kwzh@gnu.org>
parents:
515
diff
changeset
|
5223 if (AT_STRINGS_BEG (d) || AT_STRINGS_END (d)) |
|
2349
5fa185a9956e
* regex.c: Declare a new type `re_char' used throughout the code for the
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2345
diff
changeset
|
5224 not = !not; |
| 939 | 5225 else |
| 5226 { | |
| 5227 /* C1 is the character before D, S1 is the syntax of C1, C2 | |
| 5228 is the character at D, and S2 is the syntax of C2. */ | |
| 5229 int c1, c2, s1, s2; | |
| 5230 #ifdef emacs | |
|
2349
5fa185a9956e
* regex.c: Declare a new type `re_char' used throughout the code for the
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2345
diff
changeset
|
5231 int charpos = SYNTAX_TABLE_BYTE_TO_CHAR (PTR_TO_OFFSET (d - 1)); |
|
1204
28ff40a118b8
(re_search_2): Fix call to CHAR_HEAD_P.
Richard Stallman <rms@gnu.org>
parents:
1158
diff
changeset
|
5232 UPDATE_SYNTAX_TABLE (charpos); |
| 941 | 5233 #endif |
|
2349
5fa185a9956e
* regex.c: Declare a new type `re_char' used throughout the code for the
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2345
diff
changeset
|
5234 /* FIXME: This does a STRING_CHAR even for unibyte buffers. */ |
|
5fa185a9956e
* regex.c: Declare a new type `re_char' used throughout the code for the
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2345
diff
changeset
|
5235 GET_CHAR_BEFORE_2 (c1, d, string1, end1, string2, end2); |
| 939 | 5236 s1 = SYNTAX (c1); |
| 5237 #ifdef emacs | |
|
1204
28ff40a118b8
(re_search_2): Fix call to CHAR_HEAD_P.
Richard Stallman <rms@gnu.org>
parents:
1158
diff
changeset
|
5238 UPDATE_SYNTAX_TABLE_FORWARD (charpos + 1); |
| 941 | 5239 #endif |
|
2349
5fa185a9956e
* regex.c: Declare a new type `re_char' used throughout the code for the
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2345
diff
changeset
|
5240 PREFETCH (); |
|
5fa185a9956e
* regex.c: Declare a new type `re_char' used throughout the code for the
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2345
diff
changeset
|
5241 /* FIXME: This does a STRING_CHAR even for unibyte buffers. */ |
|
5fa185a9956e
* regex.c: Declare a new type `re_char' used throughout the code for the
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2345
diff
changeset
|
5242 c2 = STRING_CHAR (d, dend - d); |
| 939 | 5243 s2 = SYNTAX (c2); |
| 5244 | |
| 5245 if (/* Case 2: Only one of S1 and S2 is Sword. */ | |
| 5246 ((s1 == Sword) != (s2 == Sword)) | |
| 5247 /* Case 3: Both of S1 and S2 are Sword, and macro | |
| 941 | 5248 WORD_BOUNDARY_P (C1, C2) returns nonzero. */ |
| 939 | 5249 || ((s1 == Sword) && WORD_BOUNDARY_P (c1, c2))) |
|
2349
5fa185a9956e
* regex.c: Declare a new type `re_char' used throughout the code for the
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2345
diff
changeset
|
5250 not = !not; |
|
5fa185a9956e
* regex.c: Declare a new type `re_char' used throughout the code for the
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2345
diff
changeset
|
5251 } |
|
5fa185a9956e
* regex.c: Declare a new type `re_char' used throughout the code for the
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2345
diff
changeset
|
5252 if (not) |
|
521
7089c3a3a164
(AT_WORD_BOUNDARY): Disable macro.
Karl Heuer <kwzh@gnu.org>
parents:
515
diff
changeset
|
5253 break; |
| 939 | 5254 else |
|
521
7089c3a3a164
(AT_WORD_BOUNDARY): Disable macro.
Karl Heuer <kwzh@gnu.org>
parents:
515
diff
changeset
|
5255 goto fail; |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5256 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5257 case wordbeg: |
| 941 | 5258 DEBUG_PRINT1 ("EXECUTING wordbeg.\n"); |
| 939 | 5259 |
| 5260 /* We FAIL in one of the following cases: */ | |
| 5261 | |
| 941 | 5262 /* Case 1: D is at the end of string. */ |
| 939 | 5263 if (AT_STRINGS_END (d)) |
|
2350
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2349
diff
changeset
|
5264 goto fail; |
| 939 | 5265 else |
| 5266 { | |
| 5267 /* C1 is the character before D, S1 is the syntax of C1, C2 | |
| 5268 is the character at D, and S2 is the syntax of C2. */ | |
| 5269 int c1, c2, s1, s2; | |
| 5270 #ifdef emacs | |
|
2350
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2349
diff
changeset
|
5271 int charpos = SYNTAX_TABLE_BYTE_TO_CHAR (PTR_TO_OFFSET (d)); |
|
1218
51cf07183c67
(re_match_2_internal): Use SYNTAX_TABLE_BYTE_TO_CHAR.
Richard Stallman <rms@gnu.org>
parents:
1204
diff
changeset
|
5272 UPDATE_SYNTAX_TABLE (charpos); |
| 941 | 5273 #endif |
|
2350
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2349
diff
changeset
|
5274 PREFETCH (); |
|
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2349
diff
changeset
|
5275 /* FIXME: This does a STRING_CHAR even for unibyte buffers. */ |
|
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2349
diff
changeset
|
5276 c2 = STRING_CHAR (d, dend - d); |
| 939 | 5277 s2 = SYNTAX (c2); |
| 941 | 5278 |
| 939 | 5279 /* Case 2: S2 is not Sword. */ |
| 5280 if (s2 != Sword) | |
| 5281 goto fail; | |
| 5282 | |
| 5283 /* Case 3: D is not at the beginning of string ... */ | |
| 5284 if (!AT_STRINGS_BEG (d)) | |
| 5285 { | |
| 5286 GET_CHAR_BEFORE_2 (c1, d, string1, end1, string2, end2); | |
| 5287 #ifdef emacs | |
|
1204
28ff40a118b8
(re_search_2): Fix call to CHAR_HEAD_P.
Richard Stallman <rms@gnu.org>
parents:
1158
diff
changeset
|
5288 UPDATE_SYNTAX_TABLE_BACKWARD (charpos - 1); |
| 941 | 5289 #endif |
| 939 | 5290 s1 = SYNTAX (c1); |
| 5291 | |
| 5292 /* ... and S1 is Sword, and WORD_BOUNDARY_P (C1, C2) | |
| 941 | 5293 returns 0. */ |
| 939 | 5294 if ((s1 == Sword) && !WORD_BOUNDARY_P (c1, c2)) |
| 5295 goto fail; | |
| 5296 } | |
| 5297 } | |
| 5298 break; | |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5299 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5300 case wordend: |
| 941 | 5301 DEBUG_PRINT1 ("EXECUTING wordend.\n"); |
| 939 | 5302 |
| 5303 /* We FAIL in one of the following cases: */ | |
| 5304 | |
| 5305 /* Case 1: D is at the beginning of string. */ | |
| 5306 if (AT_STRINGS_BEG (d)) | |
| 5307 goto fail; | |
| 5308 else | |
| 5309 { | |
| 5310 /* C1 is the character before D, S1 is the syntax of C1, C2 | |
| 5311 is the character at D, and S2 is the syntax of C2. */ | |
| 5312 int c1, c2, s1, s2; | |
|
1204
28ff40a118b8
(re_search_2): Fix call to CHAR_HEAD_P.
Richard Stallman <rms@gnu.org>
parents:
1158
diff
changeset
|
5313 #ifdef emacs |
|
2350
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2349
diff
changeset
|
5314 int charpos = SYNTAX_TABLE_BYTE_TO_CHAR (PTR_TO_OFFSET (d) - 1); |
|
1218
51cf07183c67
(re_match_2_internal): Use SYNTAX_TABLE_BYTE_TO_CHAR.
Richard Stallman <rms@gnu.org>
parents:
1204
diff
changeset
|
5315 UPDATE_SYNTAX_TABLE (charpos); |
|
1204
28ff40a118b8
(re_search_2): Fix call to CHAR_HEAD_P.
Richard Stallman <rms@gnu.org>
parents:
1158
diff
changeset
|
5316 #endif |
|
2350
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2349
diff
changeset
|
5317 GET_CHAR_BEFORE_2 (c1, d, string1, end1, string2, end2); |
| 939 | 5318 s1 = SYNTAX (c1); |
| 5319 | |
| 5320 /* Case 2: S1 is not Sword. */ | |
| 5321 if (s1 != Sword) | |
| 5322 goto fail; | |
| 5323 | |
| 5324 /* Case 3: D is not at the end of string ... */ | |
| 5325 if (!AT_STRINGS_END (d)) | |
| 5326 { | |
|
2349
5fa185a9956e
* regex.c: Declare a new type `re_char' used throughout the code for the
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2345
diff
changeset
|
5327 PREFETCH (); |
|
2350
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2349
diff
changeset
|
5328 /* FIXME: This does a STRING_CHAR even for unibyte buffers. */ |
|
2349
5fa185a9956e
* regex.c: Declare a new type `re_char' used throughout the code for the
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2345
diff
changeset
|
5329 c2 = STRING_CHAR (d, dend - d); |
|
1204
28ff40a118b8
(re_search_2): Fix call to CHAR_HEAD_P.
Richard Stallman <rms@gnu.org>
parents:
1158
diff
changeset
|
5330 #ifdef emacs |
|
28ff40a118b8
(re_search_2): Fix call to CHAR_HEAD_P.
Richard Stallman <rms@gnu.org>
parents:
1158
diff
changeset
|
5331 UPDATE_SYNTAX_TABLE_FORWARD (charpos); |
|
28ff40a118b8
(re_search_2): Fix call to CHAR_HEAD_P.
Richard Stallman <rms@gnu.org>
parents:
1158
diff
changeset
|
5332 #endif |
| 939 | 5333 s2 = SYNTAX (c2); |
| 5334 | |
| 5335 /* ... and S2 is Sword, and WORD_BOUNDARY_P (C1, C2) | |
| 941 | 5336 returns 0. */ |
| 939 | 5337 if ((s2 == Sword) && !WORD_BOUNDARY_P (c1, c2)) |
| 941 | 5338 goto fail; |
| 939 | 5339 } |
| 5340 } | |
| 5341 break; | |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5342 |
|
2356
d93889e88226
(CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2355
diff
changeset
|
5343 case syntaxspec: |
|
d93889e88226
(CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2355
diff
changeset
|
5344 case notsyntaxspec: |
|
d93889e88226
(CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2355
diff
changeset
|
5345 not = (re_opcode_t) *(p - 1) == notsyntaxspec; |
|
d93889e88226
(CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2355
diff
changeset
|
5346 mcnt = *p++; |
|
d93889e88226
(CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2355
diff
changeset
|
5347 DEBUG_PRINT3 ("EXECUTING %ssyntaxspec %d.\n", not?"not":"", mcnt); |
|
d93889e88226
(CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2355
diff
changeset
|
5348 PREFETCH (); |
|
d93889e88226
(CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2355
diff
changeset
|
5349 #ifdef emacs |
|
d93889e88226
(CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2355
diff
changeset
|
5350 { |
|
d93889e88226
(CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2355
diff
changeset
|
5351 int pos1 = SYNTAX_TABLE_BYTE_TO_CHAR (PTR_TO_OFFSET (d)); |
|
d93889e88226
(CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2355
diff
changeset
|
5352 UPDATE_SYNTAX_TABLE (pos1); |
|
d93889e88226
(CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2355
diff
changeset
|
5353 } |
|
d93889e88226
(CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2355
diff
changeset
|
5354 #endif |
|
d93889e88226
(CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2355
diff
changeset
|
5355 { |
|
d93889e88226
(CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2355
diff
changeset
|
5356 int c, len; |
|
d93889e88226
(CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2355
diff
changeset
|
5357 |
|
d93889e88226
(CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2355
diff
changeset
|
5358 if (multibyte) |
|
d93889e88226
(CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2355
diff
changeset
|
5359 /* we must concern about multibyte form, ... */ |
|
d93889e88226
(CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2355
diff
changeset
|
5360 c = STRING_CHAR_AND_LENGTH (d, dend - d, len); |
|
d93889e88226
(CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2355
diff
changeset
|
5361 else |
|
d93889e88226
(CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2355
diff
changeset
|
5362 /* everything should be handled as ASCII, even though it |
|
d93889e88226
(CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2355
diff
changeset
|
5363 looks like multibyte form. */ |
|
d93889e88226
(CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2355
diff
changeset
|
5364 c = *d, len = 1; |
|
d93889e88226
(CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2355
diff
changeset
|
5365 |
|
2357
419f0813676a
(re_compile_fastmap, re_match_2_internal): Fix cast to re_opcode_t.
Dave Love <fx@gnu.org>
parents:
2356
diff
changeset
|
5366 if ((SYNTAX (c) != (re_opcode_t) mcnt) ^ not) |
|
2356
d93889e88226
(CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2355
diff
changeset
|
5367 goto fail; |
|
d93889e88226
(CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2355
diff
changeset
|
5368 d += len; |
|
d93889e88226
(CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2355
diff
changeset
|
5369 } |
|
d93889e88226
(CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2355
diff
changeset
|
5370 break; |
|
d93889e88226
(CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2355
diff
changeset
|
5371 |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5372 #ifdef emacs |
| 941 | 5373 case before_dot: |
| 5374 DEBUG_PRINT1 ("EXECUTING before_dot.\n"); | |
|
2349
5fa185a9956e
* regex.c: Declare a new type `re_char' used throughout the code for the
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2345
diff
changeset
|
5375 if (PTR_BYTE_POS (d) >= PT_BYTE) |
| 941 | 5376 goto fail; |
| 5377 break; | |
| 5378 | |
| 5379 case at_dot: | |
| 5380 DEBUG_PRINT1 ("EXECUTING at_dot.\n"); | |
|
2349
5fa185a9956e
* regex.c: Declare a new type `re_char' used throughout the code for the
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2345
diff
changeset
|
5381 if (PTR_BYTE_POS (d) != PT_BYTE) |
| 941 | 5382 goto fail; |
| 5383 break; | |
| 5384 | |
| 5385 case after_dot: | |
| 5386 DEBUG_PRINT1 ("EXECUTING after_dot.\n"); | |
|
2349
5fa185a9956e
* regex.c: Declare a new type `re_char' used throughout the code for the
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2345
diff
changeset
|
5387 if (PTR_BYTE_POS (d) <= PT_BYTE) |
| 941 | 5388 goto fail; |
| 5389 break; | |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5390 |
|
2356
d93889e88226
(CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2355
diff
changeset
|
5391 case categoryspec: |
|
d93889e88226
(CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2355
diff
changeset
|
5392 case notcategoryspec: |
|
d93889e88226
(CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2355
diff
changeset
|
5393 not = (re_opcode_t) *(p - 1) == notcategoryspec; |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5394 mcnt = *p++; |
|
2356
d93889e88226
(CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2355
diff
changeset
|
5395 DEBUG_PRINT3 ("EXECUTING %scategoryspec %d.\n", not?"not":"", mcnt); |
| 939 | 5396 PREFETCH (); |
| 5397 { | |
| 5398 int c, len; | |
| 5399 | |
| 5400 if (multibyte) | |
| 5401 c = STRING_CHAR_AND_LENGTH (d, dend - d, len); | |
| 5402 else | |
| 5403 c = *d, len = 1; | |
| 5404 | |
|
2356
d93889e88226
(CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2355
diff
changeset
|
5405 if ((!CHAR_HAS_CATEGORY (c, mcnt)) ^ not) |
| 939 | 5406 goto fail; |
| 5407 d += len; | |
| 5408 } | |
| 5409 break; | |
| 5410 | |
|
2356
d93889e88226
(CHAR_CHARSET, CHARSET_LEADING_CODE_BASE): Add default
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2355
diff
changeset
|
5411 #endif /* emacs */ |
|
515
69ba3b63e1d1
(gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents:
511
diff
changeset
|
5412 |
| 939 | 5413 default: |
| 5414 abort (); | |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5415 } |
| 939 | 5416 continue; /* Successfully executed one pattern command; keep going. */ |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5417 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5418 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5419 /* We goto here if a matching operation fails. */ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5420 fail: |
|
1660
ef1f39a7e7c3
(re_match_2_internal) [WINDOWSNT & emacs]: Insert QUIT at various places.
Richard Stallman <rms@gnu.org>
parents:
1583
diff
changeset
|
5421 QUIT; |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5422 if (!FAIL_STACK_EMPTY ()) |
|
2345
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
5423 { |
|
2349
5fa185a9956e
* regex.c: Declare a new type `re_char' used throughout the code for the
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2345
diff
changeset
|
5424 re_char *str; |
|
2345
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
5425 unsigned char *pat; |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
5426 /* A restart point is known. Restore to that state. */ |
| 939 | 5427 DEBUG_PRINT1 ("\nFAIL:\n"); |
|
2345
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
5428 POP_FAILURE_POINT (str, pat); |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
5429 switch (SWITCH_ENUM_CAST ((re_opcode_t) *pat++)) |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
5430 { |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
5431 case on_failure_keep_string_jump: |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
5432 assert (str == NULL); |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
5433 goto continue_failure_jump; |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
5434 |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
5435 case on_failure_jump_loop: |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
5436 case on_failure_jump: |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
5437 case succeed_n: |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
5438 d = str; |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
5439 continue_failure_jump: |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
5440 EXTRACT_NUMBER_AND_INCR (mcnt, pat); |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
5441 p = pat + mcnt; |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
5442 break; |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
5443 |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
5444 default: |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
5445 abort(); |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
5446 } |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
5447 |
|
93d6633849d6
This is a big redesign of failure-stack and register handling, prompted
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2153
diff
changeset
|
5448 assert (p >= bufp->buffer && p <= pend); |
| 939 | 5449 |
| 5450 if (d >= string1 && d <= end1) | |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5451 dend = end_match_1; |
| 939 | 5452 } |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5453 else |
| 939 | 5454 break; /* Matching at this starting point really fails. */ |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5455 } /* for (;;) */ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5456 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5457 if (best_regs_set) |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5458 goto restore_best_regs; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5459 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5460 FREE_VARIABLES (); |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5461 |
| 939 | 5462 return -1; /* Failure to match. */ |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5463 } /* re_match_2 */ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5464 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5465 /* Subroutine definitions for re_match_2. */ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5466 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5467 /* Return zero if TRANSLATE[S1] and TRANSLATE[S2] are identical for LEN |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5468 bytes; nonzero otherwise. */ |
|
515
69ba3b63e1d1
(gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents:
511
diff
changeset
|
5469 |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5470 static int |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5471 bcmp_translate (s1, s2, len, translate) |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5472 unsigned char *s1, *s2; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5473 register int len; |
|
501
f29b13c2cefd
(TRANSLATE, PATFETCH): Cast elt of `translate'.
Richard Stallman <rms@gnu.org>
parents:
490
diff
changeset
|
5474 RE_TRANSLATE_TYPE translate; |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5475 { |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5476 register unsigned char *p1 = s1, *p2 = s2; |
|
1296
7b938cc81ae2
(compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents:
1218
diff
changeset
|
5477 unsigned char *p1_end = s1 + len; |
|
7b938cc81ae2
(compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents:
1218
diff
changeset
|
5478 unsigned char *p2_end = s2 + len; |
|
7b938cc81ae2
(compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents:
1218
diff
changeset
|
5479 |
|
7b938cc81ae2
(compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents:
1218
diff
changeset
|
5480 while (p1 != p1_end && p2 != p2_end) |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5481 { |
|
1296
7b938cc81ae2
(compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents:
1218
diff
changeset
|
5482 int p1_charlen, p2_charlen; |
|
7b938cc81ae2
(compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents:
1218
diff
changeset
|
5483 int p1_ch, p2_ch; |
|
7b938cc81ae2
(compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents:
1218
diff
changeset
|
5484 |
|
2350
f3edfed6aa96
(re_match_2): Fix string shortening (to fit `stop') to make sure
Stefan Monnier <monnier@iro.umontreal.ca>
parents:
2349
diff
changeset
|
5485 /* FIXME: This assumes `multibyte = true'. */ |
|
1296
7b938cc81ae2
(compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents:
1218
diff
changeset
|
5486 p1_ch = STRING_CHAR_AND_LENGTH (p1, p1_end - p1, p1_charlen); |
|
7b938cc81ae2
(compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents:
1218
diff
changeset
|
5487 p2_ch = STRING_CHAR_AND_LENGTH (p2, p2_end - p2, p2_charlen); |
|
7b938cc81ae2
(compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents:
1218
diff
changeset
|
5488 |
|
7b938cc81ae2
(compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents:
1218
diff
changeset
|
5489 if (RE_TRANSLATE (translate, p1_ch) |
|
7b938cc81ae2
(compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents:
1218
diff
changeset
|
5490 != RE_TRANSLATE (translate, p2_ch)) |
|
963
ed0235161e4b
(TRANSLATE, re_search_2, re_match_2_internal,bcmp_translate):
Richard Stallman <rms@gnu.org>
parents:
961
diff
changeset
|
5491 return 1; |
|
1296
7b938cc81ae2
(compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents:
1218
diff
changeset
|
5492 |
|
7b938cc81ae2
(compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents:
1218
diff
changeset
|
5493 p1 += p1_charlen, p2 += p2_charlen; |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5494 } |
|
1296
7b938cc81ae2
(compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents:
1218
diff
changeset
|
5495 |
|
7b938cc81ae2
(compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents:
1218
diff
changeset
|
5496 if (p1 != p1_end || p2 != p2_end) |
|
7b938cc81ae2
(compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents:
1218
diff
changeset
|
5497 return 1; |
|
7b938cc81ae2
(compile_range): Unused function deleted.
Richard Stallman <rms@gnu.org>
parents:
1218
diff
changeset
|
5498 |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5499 return 0; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5500 } |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5501 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5502 /* Entry points for GNU code. */ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5503 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5504 /* re_compile_pattern is the GNU regular expression compiler: it |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5505 compiles PATTERN (of length SIZE) and puts the result in BUFP. |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5506 Returns 0 if the pattern was valid, otherwise an error string. |
|
515
69ba3b63e1d1
(gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents:
511
diff
changeset
|
5507 |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5508 Assumes the `allocated' (and perhaps `buffer') and `translate' fields |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5509 are set in BUFP on entry. |
|
515
69ba3b63e1d1
(gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents:
511
diff
changeset
|
5510 |
| 939 | 5511 We call regex_compile to do the actual compilation. */ |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5512 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5513 const char * |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5514 re_compile_pattern (pattern, length, bufp) |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5515 const char *pattern; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5516 int length; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5517 struct re_pattern_buffer *bufp; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5518 { |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5519 reg_errcode_t ret; |
|
515
69ba3b63e1d1
(gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents:
511
diff
changeset
|
5520 |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5521 /* GNU code is written to assume at least RE_NREGS registers will be set |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5522 (and at least one extra will be -1). */ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5523 bufp->regs_allocated = REGS_UNALLOCATED; |
|
515
69ba3b63e1d1
(gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents:
511
diff
changeset
|
5524 |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5525 /* And GNU code determines whether or not to get register information |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5526 by passing null for the REGS argument to re_match, etc., not by |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5527 setting no_sub. */ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5528 bufp->no_sub = 0; |
|
515
69ba3b63e1d1
(gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents:
511
diff
changeset
|
5529 |
| 939 | 5530 /* Match anchors at newline. */ |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5531 bufp->newline_anchor = 1; |
|
515
69ba3b63e1d1
(gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents:
511
diff
changeset
|
5532 |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5533 ret = regex_compile (pattern, length, re_syntax_options, bufp); |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5534 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5535 if (!ret) |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5536 return NULL; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5537 return gettext (re_error_msgid[(int) ret]); |
|
515
69ba3b63e1d1
(gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents:
511
diff
changeset
|
5538 } |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5539 |
| 939 | 5540 /* Entry points compatible with 4.2 BSD regex library. We don't define |
| 5541 them unless specifically requested. */ | |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5542 |
|
622
152fc00ed9b5
Tue May 21 19:18:05 1996 Roland McGrath <roland@delasyd.gnu.ai.mit.edu>
Roland McGrath <roland@gnu.org>
parents:
607
diff
changeset
|
5543 #if defined (_REGEX_RE_COMP) || defined (_LIBC) |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5544 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5545 /* BSD has one and only one pattern buffer. */ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5546 static struct re_pattern_buffer re_comp_buf; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5547 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5548 char * |
|
636
ddd029a89661
[_LIBC] (re_comp, re_exec): Use `weak_function' keyword in defn instead of
Roland McGrath <roland@gnu.org>
parents:
631
diff
changeset
|
5549 #ifdef _LIBC |
|
ddd029a89661
[_LIBC] (re_comp, re_exec): Use `weak_function' keyword in defn instead of
Roland McGrath <roland@gnu.org>
parents:
631
diff
changeset
|
5550 /* Make these definitions weak in libc, so POSIX programs can redefine |
|
ddd029a89661
[_LIBC] (re_comp, re_exec): Use `weak_function' keyword in defn instead of
Roland McGrath <roland@gnu.org>
parents:
631
diff
changeset
|
5551 these names if they don't use our functions, and still use |
|
ddd029a89661
[_LIBC] (re_comp, re_exec): Use `weak_function' keyword in defn instead of
Roland McGrath <roland@gnu.org>
parents:
631
diff
changeset
|
5552 regcomp/regexec below without link errors. */ |
|
ddd029a89661
[_LIBC] (re_comp, re_exec): Use `weak_function' keyword in defn instead of
Roland McGrath <roland@gnu.org>
parents:
631
diff
changeset
|
5553 weak_function |
|
ddd029a89661
[_LIBC] (re_comp, re_exec): Use `weak_function' keyword in defn instead of
Roland McGrath <roland@gnu.org>
parents:
631
diff
changeset
|
5554 #endif |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5555 re_comp (s) |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5556 const char *s; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5557 { |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5558 reg_errcode_t ret; |
|
515
69ba3b63e1d1
(gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents:
511
diff
changeset
|
5559 |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5560 if (!s) |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5561 { |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5562 if (!re_comp_buf.buffer) |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5563 return gettext ("No previous regular expression"); |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5564 return 0; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5565 } |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5566 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5567 if (!re_comp_buf.buffer) |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5568 { |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5569 re_comp_buf.buffer = (unsigned char *) malloc (200); |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5570 if (re_comp_buf.buffer == NULL) |
| 939 | 5571 return gettext (re_error_msgid[(int) REG_ESPACE]); |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5572 re_comp_buf.allocated = 200; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5573 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5574 re_comp_buf.fastmap = (char *) malloc (1 << BYTEWIDTH); |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5575 if (re_comp_buf.fastmap == NULL) |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5576 return gettext (re_error_msgid[(int) REG_ESPACE]); |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5577 } |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5578 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5579 /* Since `re_exec' always passes NULL for the `regs' argument, we |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5580 don't need to initialize the pattern buffer fields which affect it. */ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5581 |
| 939 | 5582 /* Match anchors at newlines. */ |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5583 re_comp_buf.newline_anchor = 1; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5584 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5585 ret = regex_compile (s, strlen (s), re_syntax_options, &re_comp_buf); |
|
515
69ba3b63e1d1
(gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents:
511
diff
changeset
|
5586 |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5587 if (!ret) |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5588 return NULL; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5589 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5590 /* Yes, we're discarding `const' here if !HAVE_LIBINTL. */ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5591 return (char *) gettext (re_error_msgid[(int) ret]); |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5592 } |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5593 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5594 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5595 int |
|
636
ddd029a89661
[_LIBC] (re_comp, re_exec): Use `weak_function' keyword in defn instead of
Roland McGrath <roland@gnu.org>
parents:
631
diff
changeset
|
5596 #ifdef _LIBC |
|
ddd029a89661
[_LIBC] (re_comp, re_exec): Use `weak_function' keyword in defn instead of
Roland McGrath <roland@gnu.org>
parents:
631
diff
changeset
|
5597 weak_function |
|
ddd029a89661
[_LIBC] (re_comp, re_exec): Use `weak_function' keyword in defn instead of
Roland McGrath <roland@gnu.org>
parents:
631
diff
changeset
|
5598 #endif |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5599 re_exec (s) |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5600 const char *s; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5601 { |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5602 const int len = strlen (s); |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5603 return |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5604 0 <= re_search (&re_comp_buf, s, len, 0, len, (struct re_registers *) 0); |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5605 } |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5606 #endif /* _REGEX_RE_COMP */ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5607 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5608 /* POSIX.2 functions. Don't define these for Emacs. */ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5609 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5610 #ifndef emacs |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5611 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5612 /* regcomp takes a regular expression as a string and compiles it. |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5613 |
| 939 | 5614 PREG is a regex_t *. We do not expect any fields to be initialized, |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5615 since POSIX says we shouldn't. Thus, we set |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5616 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5617 `buffer' to the compiled pattern; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5618 `used' to the length of the compiled pattern; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5619 `syntax' to RE_SYNTAX_POSIX_EXTENDED if the |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5620 REG_EXTENDED bit in CFLAGS is set; otherwise, to |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5621 RE_SYNTAX_POSIX_BASIC; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5622 `newline_anchor' to REG_NEWLINE being set in CFLAGS; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5623 `fastmap' and `fastmap_accurate' to zero; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5624 `re_nsub' to the number of subexpressions in PATTERN. |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5625 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5626 PATTERN is the address of the pattern string. |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5627 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5628 CFLAGS is a series of bits which affect compilation. |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5629 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5630 If REG_EXTENDED is set, we use POSIX extended syntax; otherwise, we |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5631 use POSIX basic syntax. |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5632 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5633 If REG_NEWLINE is set, then . and [^...] don't match newline. |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5634 Also, regexec will try a match beginning after every newline. |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5635 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5636 If REG_ICASE is set, then we considers upper- and lowercase |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5637 versions of letters to be equivalent when matching. |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5638 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5639 If REG_NOSUB is set, then when PREG is passed to regexec, that |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5640 routine will report only success or failure, and nothing about the |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5641 registers. |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5642 |
| 939 | 5643 It returns 0 if it succeeds, nonzero if it doesn't. (See regex.h for |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5644 the return codes and their meanings.) */ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5645 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5646 int |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5647 regcomp (preg, pattern, cflags) |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5648 regex_t *preg; |
|
515
69ba3b63e1d1
(gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents:
511
diff
changeset
|
5649 const char *pattern; |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5650 int cflags; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5651 { |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5652 reg_errcode_t ret; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5653 unsigned syntax |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5654 = (cflags & REG_EXTENDED) ? |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5655 RE_SYNTAX_POSIX_EXTENDED : RE_SYNTAX_POSIX_BASIC; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5656 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5657 /* regex_compile will allocate the space for the compiled pattern. */ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5658 preg->buffer = 0; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5659 preg->allocated = 0; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5660 preg->used = 0; |
|
515
69ba3b63e1d1
(gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents:
511
diff
changeset
|
5661 |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5662 /* Don't bother to use a fastmap when searching. This simplifies the |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5663 REG_NEWLINE case: if we used a fastmap, we'd have to put all the |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5664 characters after newlines into the fastmap. This way, we just try |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5665 every character. */ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5666 preg->fastmap = 0; |
|
515
69ba3b63e1d1
(gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents:
511
diff
changeset
|
5667 |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5668 if (cflags & REG_ICASE) |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5669 { |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5670 unsigned i; |
|
515
69ba3b63e1d1
(gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents:
511
diff
changeset
|
5671 |
|
501
f29b13c2cefd
(TRANSLATE, PATFETCH): Cast elt of `translate'.
Richard Stallman <rms@gnu.org>
parents:
490
diff
changeset
|
5672 preg->translate |
|
f29b13c2cefd
(TRANSLATE, PATFETCH): Cast elt of `translate'.
Richard Stallman <rms@gnu.org>
parents:
490
diff
changeset
|
5673 = (RE_TRANSLATE_TYPE) malloc (CHAR_SET_SIZE |
|
f29b13c2cefd
(TRANSLATE, PATFETCH): Cast elt of `translate'.
Richard Stallman <rms@gnu.org>
parents:
490
diff
changeset
|
5674 * sizeof (*(RE_TRANSLATE_TYPE)0)); |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5675 if (preg->translate == NULL) |
| 939 | 5676 return (int) REG_ESPACE; |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5677 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5678 /* Map uppercase characters to corresponding lowercase ones. */ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5679 for (i = 0; i < CHAR_SET_SIZE; i++) |
| 939 | 5680 preg->translate[i] = ISUPPER (i) ? tolower (i) : i; |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5681 } |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5682 else |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5683 preg->translate = NULL; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5684 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5685 /* If REG_NEWLINE is set, newlines are treated differently. */ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5686 if (cflags & REG_NEWLINE) |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5687 { /* REG_NEWLINE implies neither . nor [^...] match newline. */ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5688 syntax &= ~RE_DOT_NEWLINE; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5689 syntax |= RE_HAT_LISTS_NOT_NEWLINE; |
| 939 | 5690 /* It also changes the matching behavior. */ |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5691 preg->newline_anchor = 1; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5692 } |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5693 else |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5694 preg->newline_anchor = 0; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5695 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5696 preg->no_sub = !!(cflags & REG_NOSUB); |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5697 |
|
515
69ba3b63e1d1
(gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents:
511
diff
changeset
|
5698 /* POSIX says a null character in the pattern terminates it, so we |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5699 can use strlen here in compiling the pattern. */ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5700 ret = regex_compile (pattern, strlen (pattern), syntax, preg); |
|
515
69ba3b63e1d1
(gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents:
511
diff
changeset
|
5701 |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5702 /* POSIX doesn't distinguish between an unmatched open-group and an |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5703 unmatched close-group: both are REG_EPAREN. */ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5704 if (ret == REG_ERPAREN) ret = REG_EPAREN; |
|
515
69ba3b63e1d1
(gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents:
511
diff
changeset
|
5705 |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5706 return (int) ret; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5707 } |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5708 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5709 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5710 /* regexec searches for a given pattern, specified by PREG, in the |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5711 string STRING. |
|
515
69ba3b63e1d1
(gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents:
511
diff
changeset
|
5712 |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5713 If NMATCH is zero or REG_NOSUB was set in the cflags argument to |
| 939 | 5714 `regcomp', we ignore PMATCH. Otherwise, we assume PMATCH has at |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5715 least NMATCH elements, and we set them to the offsets of the |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5716 corresponding matched substrings. |
|
515
69ba3b63e1d1
(gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents:
511
diff
changeset
|
5717 |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5718 EFLAGS specifies `execution flags' which affect matching: if |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5719 REG_NOTBOL is set, then ^ does not match at the beginning of the |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5720 string; if REG_NOTEOL is set, then $ does not match at the end. |
|
515
69ba3b63e1d1
(gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents:
511
diff
changeset
|
5721 |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5722 We return 0 if we find a match and REG_NOMATCH if not. */ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5723 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5724 int |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5725 regexec (preg, string, nmatch, pmatch, eflags) |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5726 const regex_t *preg; |
|
515
69ba3b63e1d1
(gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents:
511
diff
changeset
|
5727 const char *string; |
|
69ba3b63e1d1
(gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents:
511
diff
changeset
|
5728 size_t nmatch; |
|
69ba3b63e1d1
(gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents:
511
diff
changeset
|
5729 regmatch_t pmatch[]; |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5730 int eflags; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5731 { |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5732 int ret; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5733 struct re_registers regs; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5734 regex_t private_preg; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5735 int len = strlen (string); |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5736 boolean want_reg_info = !preg->no_sub && nmatch > 0; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5737 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5738 private_preg = *preg; |
|
515
69ba3b63e1d1
(gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents:
511
diff
changeset
|
5739 |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5740 private_preg.not_bol = !!(eflags & REG_NOTBOL); |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5741 private_preg.not_eol = !!(eflags & REG_NOTEOL); |
|
515
69ba3b63e1d1
(gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents:
511
diff
changeset
|
5742 |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5743 /* The user has told us exactly how many registers to return |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5744 information about, via `nmatch'. We have to pass that on to the |
| 939 | 5745 matching routines. */ |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5746 private_preg.regs_allocated = REGS_FIXED; |
|
515
69ba3b63e1d1
(gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents:
511
diff
changeset
|
5747 |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5748 if (want_reg_info) |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5749 { |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5750 regs.num_regs = nmatch; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5751 regs.start = TALLOC (nmatch, regoff_t); |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5752 regs.end = TALLOC (nmatch, regoff_t); |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5753 if (regs.start == NULL || regs.end == NULL) |
| 939 | 5754 return (int) REG_NOMATCH; |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5755 } |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5756 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5757 /* Perform the searching operation. */ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5758 ret = re_search (&private_preg, string, len, |
| 939 | 5759 /* start: */ 0, /* range: */ len, |
| 5760 want_reg_info ? ®s : (struct re_registers *) 0); | |
|
515
69ba3b63e1d1
(gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents:
511
diff
changeset
|
5761 |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5762 /* Copy the register information to the POSIX structure. */ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5763 if (want_reg_info) |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5764 { |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5765 if (ret >= 0) |
| 939 | 5766 { |
| 5767 unsigned r; | |
| 5768 | |
| 5769 for (r = 0; r < nmatch; r++) | |
| 5770 { | |
| 5771 pmatch[r].rm_so = regs.start[r]; | |
| 5772 pmatch[r].rm_eo = regs.end[r]; | |
| 5773 } | |
| 5774 } | |
| 5775 | |
| 5776 /* If we needed the temporary register info, free the space now. */ | |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5777 free (regs.start); |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5778 free (regs.end); |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5779 } |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5780 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5781 /* We want zero return to mean success, unlike `re_search'. */ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5782 return ret >= 0 ? (int) REG_NOERROR : (int) REG_NOMATCH; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5783 } |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5784 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5785 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5786 /* Returns a message corresponding to an error code, ERRCODE, returned |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5787 from either regcomp or regexec. We don't use PREG here. */ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5788 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5789 size_t |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5790 regerror (errcode, preg, errbuf, errbuf_size) |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5791 int errcode; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5792 const regex_t *preg; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5793 char *errbuf; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5794 size_t errbuf_size; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5795 { |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5796 const char *msg; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5797 size_t msg_size; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5798 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5799 if (errcode < 0 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5800 || errcode >= (sizeof (re_error_msgid) / sizeof (re_error_msgid[0]))) |
|
515
69ba3b63e1d1
(gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents:
511
diff
changeset
|
5801 /* Only error codes returned by the rest of the code should be passed |
| 939 | 5802 to this routine. If we are given anything else, or if other regex |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5803 code generates an invalid error code, then the program has a bug. |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5804 Dump core so we can fix it. */ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5805 abort (); |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5806 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5807 msg = gettext (re_error_msgid[errcode]); |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5808 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5809 msg_size = strlen (msg) + 1; /* Includes the null. */ |
|
515
69ba3b63e1d1
(gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents:
511
diff
changeset
|
5810 |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5811 if (errbuf_size != 0) |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5812 { |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5813 if (msg_size > errbuf_size) |
| 939 | 5814 { |
| 5815 strncpy (errbuf, msg, errbuf_size - 1); | |
| 5816 errbuf[errbuf_size - 1] = 0; | |
| 5817 } | |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5818 else |
| 939 | 5819 strcpy (errbuf, msg); |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5820 } |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5821 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5822 return msg_size; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5823 } |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5824 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5825 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5826 /* Free dynamically allocated space used by PREG. */ |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5827 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5828 void |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5829 regfree (preg) |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5830 regex_t *preg; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5831 { |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5832 if (preg->buffer != NULL) |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5833 free (preg->buffer); |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5834 preg->buffer = NULL; |
|
515
69ba3b63e1d1
(gettext_noop): New macro, identity fn.
Roland McGrath <roland@gnu.org>
parents:
511
diff
changeset
|
5835 |
|
441
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5836 preg->allocated = 0; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5837 preg->used = 0; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5838 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5839 if (preg->fastmap != NULL) |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5840 free (preg->fastmap); |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5841 preg->fastmap = NULL; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5842 preg->fastmap_accurate = 0; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5843 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5844 if (preg->translate != NULL) |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5845 free (preg->translate); |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5846 preg->translate = NULL; |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5847 } |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5848 |
|
403b2dfdfa0b
Add `#ifdef _LIBC' in a few places, so this can be compiled in libc.
Roland McGrath <roland@gnu.org>
parents:
438
diff
changeset
|
5849 #endif /* not emacs */ |