Mercurial > vim
annotate src/regexp_nfa.c @ 4738:66a9e8fa6f45 v7.3.1116
updated for version 7.3.1116
Problem: Can't build without Visual mode.
Solution: Add #ifdefs.
author | Bram Moolenaar <bram@vim.org> |
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date | Wed, 05 Jun 2013 11:02:05 +0200 |
parents | 532c31f9e92f |
children | 97560c16ca99 |
rev | line source |
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4444 | 1 /* vi:set ts=8 sts=4 sw=4: |
2 * | |
3 * NFA regular expression implementation. | |
4 * | |
5 * This file is included in "regexp.c". | |
6 */ | |
7 | |
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8 /* |
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9 * Logging of NFA engine. |
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10 * |
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11 * The NFA engine can write four log files: |
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12 * - Error log: Contains NFA engine's fatal errors. |
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13 * - Dump log: Contains compiled NFA state machine's information. |
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14 * - Run log: Contains information of matching procedure. |
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15 * - Debug log: Contains detailed information of matching procedure. Can be |
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16 * disabled by undefining NFA_REGEXP_DEBUG_LOG. |
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17 * The first one can also be used without debug mode. |
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18 * The last three are enabled when compiled as debug mode and individually |
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19 * disabled by commenting them out. |
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20 * The log files can get quite big! |
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21 * Do disable all of this when compiling Vim for debugging, undefine DEBUG in |
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22 * regexp.c |
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23 */ |
4444 | 24 #ifdef DEBUG |
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25 # define NFA_REGEXP_ERROR_LOG "nfa_regexp_error.log" |
4444 | 26 # define ENABLE_LOG |
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27 # define NFA_REGEXP_DUMP_LOG "nfa_regexp_dump.log" |
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28 # define NFA_REGEXP_RUN_LOG "nfa_regexp_run.log" |
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29 # define NFA_REGEXP_DEBUG_LOG "nfa_regexp_debug.log" |
4444 | 30 #endif |
31 | |
32 enum | |
33 { | |
34 NFA_SPLIT = -1024, | |
35 NFA_MATCH, | |
36 NFA_SKIP_CHAR, /* matches a 0-length char */ | |
37 NFA_END_NEG_RANGE, /* Used when expanding [^ab] */ | |
38 | |
39 NFA_CONCAT, | |
40 NFA_OR, | |
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41 NFA_STAR, /* greedy * */ |
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42 NFA_STAR_NONGREEDY, /* non-greedy * */ |
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43 NFA_QUEST, /* greedy \? */ |
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44 NFA_QUEST_NONGREEDY, /* non-greedy \? */ |
4444 | 45 NFA_NOT, /* used for [^ab] negated char ranges */ |
46 | |
47 NFA_BOL, /* ^ Begin line */ | |
48 NFA_EOL, /* $ End line */ | |
49 NFA_BOW, /* \< Begin word */ | |
50 NFA_EOW, /* \> End word */ | |
51 NFA_BOF, /* \%^ Begin file */ | |
52 NFA_EOF, /* \%$ End file */ | |
53 NFA_NEWL, | |
54 NFA_ZSTART, /* Used for \zs */ | |
55 NFA_ZEND, /* Used for \ze */ | |
56 NFA_NOPEN, /* Start of subexpression marked with \%( */ | |
57 NFA_NCLOSE, /* End of subexpr. marked with \%( ... \) */ | |
58 NFA_START_INVISIBLE, | |
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59 NFA_START_INVISIBLE_BEFORE, |
4444 | 60 NFA_END_INVISIBLE, |
61 NFA_COMPOSING, /* Next nodes in NFA are part of the | |
62 composing multibyte char */ | |
63 NFA_END_COMPOSING, /* End of a composing char in the NFA */ | |
64 | |
65 /* The following are used only in the postfix form, not in the NFA */ | |
66 NFA_PREV_ATOM_NO_WIDTH, /* Used for \@= */ | |
67 NFA_PREV_ATOM_NO_WIDTH_NEG, /* Used for \@! */ | |
68 NFA_PREV_ATOM_JUST_BEFORE, /* Used for \@<= */ | |
69 NFA_PREV_ATOM_JUST_BEFORE_NEG, /* Used for \@<! */ | |
70 NFA_PREV_ATOM_LIKE_PATTERN, /* Used for \@> */ | |
71 | |
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72 NFA_BACKREF1, /* \1 */ |
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73 NFA_BACKREF2, /* \2 */ |
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74 NFA_BACKREF3, /* \3 */ |
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75 NFA_BACKREF4, /* \4 */ |
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76 NFA_BACKREF5, /* \5 */ |
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77 NFA_BACKREF6, /* \6 */ |
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78 NFA_BACKREF7, /* \7 */ |
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79 NFA_BACKREF8, /* \8 */ |
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80 NFA_BACKREF9, /* \9 */ |
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81 #ifdef FEAT_SYN_HL |
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82 NFA_ZREF1, /* \z1 */ |
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83 NFA_ZREF2, /* \z2 */ |
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84 NFA_ZREF3, /* \z3 */ |
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85 NFA_ZREF4, /* \z4 */ |
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86 NFA_ZREF5, /* \z5 */ |
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87 NFA_ZREF6, /* \z6 */ |
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88 NFA_ZREF7, /* \z7 */ |
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89 NFA_ZREF8, /* \z8 */ |
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90 NFA_ZREF9, /* \z9 */ |
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91 #endif |
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92 NFA_SKIP, /* Skip characters */ |
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93 |
4444 | 94 NFA_MOPEN, |
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95 NFA_MOPEN1, |
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96 NFA_MOPEN2, |
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97 NFA_MOPEN3, |
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98 NFA_MOPEN4, |
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99 NFA_MOPEN5, |
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100 NFA_MOPEN6, |
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101 NFA_MOPEN7, |
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102 NFA_MOPEN8, |
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103 NFA_MOPEN9, |
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104 |
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105 NFA_MCLOSE, |
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106 NFA_MCLOSE1, |
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107 NFA_MCLOSE2, |
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108 NFA_MCLOSE3, |
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109 NFA_MCLOSE4, |
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110 NFA_MCLOSE5, |
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111 NFA_MCLOSE6, |
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112 NFA_MCLOSE7, |
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113 NFA_MCLOSE8, |
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114 NFA_MCLOSE9, |
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115 |
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116 #ifdef FEAT_SYN_HL |
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117 NFA_ZOPEN, |
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118 NFA_ZOPEN1, |
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119 NFA_ZOPEN2, |
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120 NFA_ZOPEN3, |
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121 NFA_ZOPEN4, |
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122 NFA_ZOPEN5, |
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123 NFA_ZOPEN6, |
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124 NFA_ZOPEN7, |
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125 NFA_ZOPEN8, |
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126 NFA_ZOPEN9, |
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127 |
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128 NFA_ZCLOSE, |
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129 NFA_ZCLOSE1, |
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130 NFA_ZCLOSE2, |
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131 NFA_ZCLOSE3, |
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132 NFA_ZCLOSE4, |
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133 NFA_ZCLOSE5, |
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134 NFA_ZCLOSE6, |
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135 NFA_ZCLOSE7, |
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136 NFA_ZCLOSE8, |
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137 NFA_ZCLOSE9, |
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138 #endif |
4444 | 139 |
140 /* NFA_FIRST_NL */ | |
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141 NFA_ANY, /* Match any one character. */ |
4444 | 142 NFA_ANYOF, /* Match any character in this string. */ |
143 NFA_ANYBUT, /* Match any character not in this string. */ | |
144 NFA_IDENT, /* Match identifier char */ | |
145 NFA_SIDENT, /* Match identifier char but no digit */ | |
146 NFA_KWORD, /* Match keyword char */ | |
147 NFA_SKWORD, /* Match word char but no digit */ | |
148 NFA_FNAME, /* Match file name char */ | |
149 NFA_SFNAME, /* Match file name char but no digit */ | |
150 NFA_PRINT, /* Match printable char */ | |
151 NFA_SPRINT, /* Match printable char but no digit */ | |
152 NFA_WHITE, /* Match whitespace char */ | |
153 NFA_NWHITE, /* Match non-whitespace char */ | |
154 NFA_DIGIT, /* Match digit char */ | |
155 NFA_NDIGIT, /* Match non-digit char */ | |
156 NFA_HEX, /* Match hex char */ | |
157 NFA_NHEX, /* Match non-hex char */ | |
158 NFA_OCTAL, /* Match octal char */ | |
159 NFA_NOCTAL, /* Match non-octal char */ | |
160 NFA_WORD, /* Match word char */ | |
161 NFA_NWORD, /* Match non-word char */ | |
162 NFA_HEAD, /* Match head char */ | |
163 NFA_NHEAD, /* Match non-head char */ | |
164 NFA_ALPHA, /* Match alpha char */ | |
165 NFA_NALPHA, /* Match non-alpha char */ | |
166 NFA_LOWER, /* Match lowercase char */ | |
167 NFA_NLOWER, /* Match non-lowercase char */ | |
168 NFA_UPPER, /* Match uppercase char */ | |
169 NFA_NUPPER, /* Match non-uppercase char */ | |
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170 |
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171 NFA_CURSOR, /* Match cursor pos */ |
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172 NFA_LNUM, /* Match line number */ |
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173 NFA_LNUM_GT, /* Match > line number */ |
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174 NFA_LNUM_LT, /* Match < line number */ |
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175 NFA_COL, /* Match cursor column */ |
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176 NFA_COL_GT, /* Match > cursor column */ |
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177 NFA_COL_LT, /* Match < cursor column */ |
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178 NFA_VCOL, /* Match cursor virtual column */ |
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179 NFA_VCOL_GT, /* Match > cursor virtual column */ |
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180 NFA_VCOL_LT, /* Match < cursor virtual column */ |
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181 NFA_MARK, /* Match mark */ |
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182 NFA_MARK_GT, /* Match > mark */ |
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183 NFA_MARK_LT, /* Match < mark */ |
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184 #ifdef FEAT_VISUAL |
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185 NFA_VISUAL, /* Match Visual area */ |
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186 #endif |
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187 |
4444 | 188 NFA_FIRST_NL = NFA_ANY + ADD_NL, |
189 NFA_LAST_NL = NFA_NUPPER + ADD_NL, | |
190 | |
191 /* Character classes [:alnum:] etc */ | |
192 NFA_CLASS_ALNUM, | |
193 NFA_CLASS_ALPHA, | |
194 NFA_CLASS_BLANK, | |
195 NFA_CLASS_CNTRL, | |
196 NFA_CLASS_DIGIT, | |
197 NFA_CLASS_GRAPH, | |
198 NFA_CLASS_LOWER, | |
199 NFA_CLASS_PRINT, | |
200 NFA_CLASS_PUNCT, | |
201 NFA_CLASS_SPACE, | |
202 NFA_CLASS_UPPER, | |
203 NFA_CLASS_XDIGIT, | |
204 NFA_CLASS_TAB, | |
205 NFA_CLASS_RETURN, | |
206 NFA_CLASS_BACKSPACE, | |
207 NFA_CLASS_ESCAPE | |
208 }; | |
209 | |
210 /* Keep in sync with classchars. */ | |
211 static int nfa_classcodes[] = { | |
212 NFA_ANY, NFA_IDENT, NFA_SIDENT, NFA_KWORD,NFA_SKWORD, | |
213 NFA_FNAME, NFA_SFNAME, NFA_PRINT, NFA_SPRINT, | |
214 NFA_WHITE, NFA_NWHITE, NFA_DIGIT, NFA_NDIGIT, | |
215 NFA_HEX, NFA_NHEX, NFA_OCTAL, NFA_NOCTAL, | |
216 NFA_WORD, NFA_NWORD, NFA_HEAD, NFA_NHEAD, | |
217 NFA_ALPHA, NFA_NALPHA, NFA_LOWER, NFA_NLOWER, | |
218 NFA_UPPER, NFA_NUPPER | |
219 }; | |
220 | |
221 static char_u e_misplaced[] = N_("E866: (NFA regexp) Misplaced %c"); | |
222 | |
223 /* | |
224 * NFA errors can be of 3 types: | |
225 * *** NFA runtime errors, when something unknown goes wrong. The NFA fails | |
226 * silently and revert the to backtracking engine. | |
227 * syntax_error = FALSE; | |
228 * *** Regexp syntax errors, when the input regexp is not syntactically correct. | |
229 * The NFA engine displays an error message, and nothing else happens. | |
230 * syntax_error = TRUE | |
231 * *** Unsupported features, when the input regexp uses an operator that is not | |
232 * implemented in the NFA. The NFA engine fails silently, and reverts to the | |
233 * old backtracking engine. | |
234 * syntax_error = FALSE | |
235 * "The NFA fails" means that "compiling the regexp with the NFA fails": | |
236 * nfa_regcomp() returns FAIL. | |
237 */ | |
238 static int syntax_error = FALSE; | |
239 | |
240 /* NFA regexp \ze operator encountered. */ | |
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241 static int nfa_has_zend; |
4444 | 242 |
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243 /* NFA regexp \1 .. \9 encountered. */ |
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244 static int nfa_has_backref; |
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245 |
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246 #ifdef FEAT_SYN_HL |
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247 /* NFA regexp has \z( ), set zsubexpr. */ |
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248 static int nfa_has_zsubexpr; |
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249 #endif |
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250 |
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251 /* Number of sub expressions actually being used during execution. 1 if only |
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252 * the whole match (subexpr 0) is used. */ |
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253 static int nfa_nsubexpr; |
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254 |
4444 | 255 static int *post_start; /* holds the postfix form of r.e. */ |
256 static int *post_end; | |
257 static int *post_ptr; | |
258 | |
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259 static int nstate; /* Number of states in the NFA. Also used when |
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260 * executing. */ |
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261 static int istate; /* Index in the state vector, used in alloc_state() */ |
4444 | 262 |
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263 /* If not NULL match must end at this position */ |
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264 static save_se_T *nfa_endp = NULL; |
4444 | 265 |
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266 /* listid is global, so that it increases on recursive calls to |
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267 * nfa_regmatch(), which means we don't have to clear the lastlist field of |
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268 * all the states. */ |
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269 static int nfa_listid; |
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270 static int nfa_alt_listid; |
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271 |
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272 /* 0 for first call to nfa_regmatch(), 1 for recursive call. */ |
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273 static int nfa_ll_index = 0; |
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274 |
4444 | 275 static int nfa_regcomp_start __ARGS((char_u*expr, int re_flags)); |
276 static int nfa_recognize_char_class __ARGS((char_u *start, char_u *end, int extra_newl)); | |
277 static int nfa_emit_equi_class __ARGS((int c, int neg)); | |
278 static int nfa_regatom __ARGS((void)); | |
279 static int nfa_regpiece __ARGS((void)); | |
280 static int nfa_regconcat __ARGS((void)); | |
281 static int nfa_regbranch __ARGS((void)); | |
282 static int nfa_reg __ARGS((int paren)); | |
283 #ifdef DEBUG | |
284 static void nfa_set_code __ARGS((int c)); | |
285 static void nfa_postfix_dump __ARGS((char_u *expr, int retval)); | |
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286 static void nfa_print_state __ARGS((FILE *debugf, nfa_state_T *state)); |
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287 static void nfa_print_state2 __ARGS((FILE *debugf, nfa_state_T *state, garray_T *indent)); |
4444 | 288 static void nfa_dump __ARGS((nfa_regprog_T *prog)); |
289 #endif | |
290 static int *re2post __ARGS((void)); | |
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291 static nfa_state_T *alloc_state __ARGS((int c, nfa_state_T *out, nfa_state_T *out1)); |
4444 | 292 static nfa_state_T *post2nfa __ARGS((int *postfix, int *end, int nfa_calc_size)); |
293 static int check_char_class __ARGS((int class, int c)); | |
294 static void st_error __ARGS((int *postfix, int *end, int *p)); | |
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295 static void nfa_save_listids __ARGS((nfa_regprog_T *prog, int *list)); |
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296 static void nfa_restore_listids __ARGS((nfa_regprog_T *prog, int *list)); |
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297 static int nfa_re_num_cmp __ARGS((long_u val, int op, long_u pos)); |
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298 static long nfa_regtry __ARGS((nfa_regprog_T *prog, colnr_T col)); |
4444 | 299 static long nfa_regexec_both __ARGS((char_u *line, colnr_T col)); |
300 static regprog_T *nfa_regcomp __ARGS((char_u *expr, int re_flags)); | |
301 static int nfa_regexec __ARGS((regmatch_T *rmp, char_u *line, colnr_T col)); | |
302 static long nfa_regexec_multi __ARGS((regmmatch_T *rmp, win_T *win, buf_T *buf, linenr_T lnum, colnr_T col, proftime_T *tm)); | |
303 | |
304 /* helper functions used when doing re2post() ... regatom() parsing */ | |
305 #define EMIT(c) do { \ | |
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306 if (post_ptr >= post_end && realloc_post_list() == FAIL) \ |
4444 | 307 return FAIL; \ |
308 *post_ptr++ = c; \ | |
309 } while (0) | |
310 | |
311 /* | |
312 * Initialize internal variables before NFA compilation. | |
313 * Return OK on success, FAIL otherwise. | |
314 */ | |
315 static int | |
316 nfa_regcomp_start(expr, re_flags) | |
317 char_u *expr; | |
318 int re_flags; /* see vim_regcomp() */ | |
319 { | |
4458 | 320 size_t postfix_size; |
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321 int nstate_max; |
4444 | 322 |
323 nstate = 0; | |
324 istate = 0; | |
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325 /* A reasonable estimation for maximum size */ |
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326 nstate_max = (int)(STRLEN(expr) + 1) * 25; |
4444 | 327 |
4454 | 328 /* Some items blow up in size, such as [A-z]. Add more space for that. |
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329 * When it is still not enough realloc_post_list() will be used. */ |
4458 | 330 nstate_max += 1000; |
4454 | 331 |
332 /* Size for postfix representation of expr. */ | |
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333 postfix_size = sizeof(int) * nstate_max; |
4454 | 334 |
4444 | 335 post_start = (int *)lalloc(postfix_size, TRUE); |
336 if (post_start == NULL) | |
337 return FAIL; | |
338 vim_memset(post_start, 0, postfix_size); | |
339 post_ptr = post_start; | |
4454 | 340 post_end = post_start + nstate_max; |
4444 | 341 nfa_has_zend = FALSE; |
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342 nfa_has_backref = FALSE; |
4444 | 343 |
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344 /* shared with BT engine */ |
4444 | 345 regcomp_start(expr, re_flags); |
346 | |
347 return OK; | |
348 } | |
349 | |
350 /* | |
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351 * Allocate more space for post_start. Called when |
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352 * running above the estimated number of states. |
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353 */ |
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354 static int |
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355 realloc_post_list() |
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356 { |
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357 int nstate_max = (int)(post_end - post_start); |
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358 int new_max = nstate_max + 1000; |
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359 int *new_start; |
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360 int *old_start; |
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361 |
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362 new_start = (int *)lalloc(new_max * sizeof(int), TRUE); |
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363 if (new_start == NULL) |
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364 return FAIL; |
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365 mch_memmove(new_start, post_start, nstate_max * sizeof(int)); |
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366 vim_memset(new_start + nstate_max, 0, 1000 * sizeof(int)); |
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367 old_start = post_start; |
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368 post_start = new_start; |
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369 post_ptr = new_start + (post_ptr - old_start); |
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370 post_end = post_start + new_max; |
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371 vim_free(old_start); |
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372 return OK; |
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373 } |
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374 |
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375 /* |
4444 | 376 * Search between "start" and "end" and try to recognize a |
377 * character class in expanded form. For example [0-9]. | |
378 * On success, return the id the character class to be emitted. | |
379 * On failure, return 0 (=FAIL) | |
380 * Start points to the first char of the range, while end should point | |
381 * to the closing brace. | |
382 */ | |
383 static int | |
384 nfa_recognize_char_class(start, end, extra_newl) | |
385 char_u *start; | |
386 char_u *end; | |
387 int extra_newl; | |
388 { | |
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389 # define CLASS_not 0x80 |
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390 # define CLASS_af 0x40 |
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391 # define CLASS_AF 0x20 |
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392 # define CLASS_az 0x10 |
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393 # define CLASS_AZ 0x08 |
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394 # define CLASS_o7 0x04 |
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395 # define CLASS_o9 0x02 |
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396 # define CLASS_underscore 0x01 |
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397 |
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398 int newl = FALSE; |
4444 | 399 char_u *p; |
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400 int config = 0; |
4444 | 401 |
402 if (extra_newl == TRUE) | |
403 newl = TRUE; | |
404 | |
405 if (*end != ']') | |
406 return FAIL; | |
407 p = start; | |
408 if (*p == '^') | |
409 { | |
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410 config |= CLASS_not; |
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411 p++; |
4444 | 412 } |
413 | |
414 while (p < end) | |
415 { | |
416 if (p + 2 < end && *(p + 1) == '-') | |
417 { | |
418 switch (*p) | |
419 { | |
420 case '0': | |
421 if (*(p + 2) == '9') | |
422 { | |
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423 config |= CLASS_o9; |
4444 | 424 break; |
425 } | |
426 else | |
427 if (*(p + 2) == '7') | |
428 { | |
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429 config |= CLASS_o7; |
4444 | 430 break; |
431 } | |
432 case 'a': | |
433 if (*(p + 2) == 'z') | |
434 { | |
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435 config |= CLASS_az; |
4444 | 436 break; |
437 } | |
438 else | |
439 if (*(p + 2) == 'f') | |
440 { | |
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441 config |= CLASS_af; |
4444 | 442 break; |
443 } | |
444 case 'A': | |
445 if (*(p + 2) == 'Z') | |
446 { | |
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447 config |= CLASS_AZ; |
4444 | 448 break; |
449 } | |
450 else | |
451 if (*(p + 2) == 'F') | |
452 { | |
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453 config |= CLASS_AF; |
4444 | 454 break; |
455 } | |
456 /* FALLTHROUGH */ | |
457 default: | |
458 return FAIL; | |
459 } | |
460 p += 3; | |
461 } | |
462 else if (p + 1 < end && *p == '\\' && *(p + 1) == 'n') | |
463 { | |
464 newl = TRUE; | |
465 p += 2; | |
466 } | |
467 else if (*p == '_') | |
468 { | |
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469 config |= CLASS_underscore; |
4444 | 470 p ++; |
471 } | |
472 else if (*p == '\n') | |
473 { | |
474 newl = TRUE; | |
475 p ++; | |
476 } | |
477 else | |
478 return FAIL; | |
479 } /* while (p < end) */ | |
480 | |
481 if (p != end) | |
482 return FAIL; | |
483 | |
484 if (newl == TRUE) | |
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485 extra_newl = ADD_NL; |
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486 |
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487 switch (config) |
4444 | 488 { |
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489 case CLASS_o9: |
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490 return extra_newl + NFA_DIGIT; |
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491 case CLASS_not | CLASS_o9: |
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492 return extra_newl + NFA_NDIGIT; |
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493 case CLASS_af | CLASS_AF | CLASS_o9: |
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494 return extra_newl + NFA_HEX; |
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495 case CLASS_not | CLASS_af | CLASS_AF | CLASS_o9: |
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496 return extra_newl + NFA_NHEX; |
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497 case CLASS_o7: |
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498 return extra_newl + NFA_OCTAL; |
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499 case CLASS_not | CLASS_o7: |
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500 return extra_newl + NFA_NOCTAL; |
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501 case CLASS_az | CLASS_AZ | CLASS_o9 | CLASS_underscore: |
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502 return extra_newl + NFA_WORD; |
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503 case CLASS_not | CLASS_az | CLASS_AZ | CLASS_o9 | CLASS_underscore: |
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504 return extra_newl + NFA_NWORD; |
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505 case CLASS_az | CLASS_AZ | CLASS_underscore: |
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506 return extra_newl + NFA_HEAD; |
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507 case CLASS_not | CLASS_az | CLASS_AZ | CLASS_underscore: |
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508 return extra_newl + NFA_NHEAD; |
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509 case CLASS_az | CLASS_AZ: |
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510 return extra_newl + NFA_ALPHA; |
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511 case CLASS_not | CLASS_az | CLASS_AZ: |
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512 return extra_newl + NFA_NALPHA; |
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513 case CLASS_az: |
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514 return extra_newl + NFA_LOWER; |
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515 case CLASS_not | CLASS_az: |
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516 return extra_newl + NFA_NLOWER; |
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517 case CLASS_AZ: |
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518 return extra_newl + NFA_UPPER; |
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519 case CLASS_not | CLASS_AZ: |
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520 return extra_newl + NFA_NUPPER; |
4444 | 521 } |
522 return FAIL; | |
523 } | |
524 | |
525 /* | |
526 * Produce the bytes for equivalence class "c". | |
527 * Currently only handles latin1, latin9 and utf-8. | |
528 * Emits bytes in postfix notation: 'a,b,NFA_OR,c,NFA_OR' is | |
529 * equivalent to 'a OR b OR c' | |
530 * | |
531 * NOTE! When changing this function, also update reg_equi_class() | |
532 */ | |
533 static int | |
534 nfa_emit_equi_class(c, neg) | |
535 int c; | |
536 int neg; | |
537 { | |
538 int first = TRUE; | |
539 int glue = neg == TRUE ? NFA_CONCAT : NFA_OR; | |
540 #define EMIT2(c) \ | |
541 EMIT(c); \ | |
542 if (neg == TRUE) { \ | |
543 EMIT(NFA_NOT); \ | |
544 } \ | |
545 if (first == FALSE) \ | |
546 EMIT(glue); \ | |
547 else \ | |
548 first = FALSE; \ | |
549 | |
550 #ifdef FEAT_MBYTE | |
551 if (enc_utf8 || STRCMP(p_enc, "latin1") == 0 | |
552 || STRCMP(p_enc, "iso-8859-15") == 0) | |
553 #endif | |
554 { | |
555 switch (c) | |
556 { | |
557 case 'A': case '\300': case '\301': case '\302': | |
558 case '\303': case '\304': case '\305': | |
559 EMIT2('A'); EMIT2('\300'); EMIT2('\301'); | |
560 EMIT2('\302'); EMIT2('\303'); EMIT2('\304'); | |
561 EMIT2('\305'); | |
562 return OK; | |
563 | |
564 case 'C': case '\307': | |
565 EMIT2('C'); EMIT2('\307'); | |
566 return OK; | |
567 | |
568 case 'E': case '\310': case '\311': case '\312': case '\313': | |
569 EMIT2('E'); EMIT2('\310'); EMIT2('\311'); | |
570 EMIT2('\312'); EMIT2('\313'); | |
571 return OK; | |
572 | |
573 case 'I': case '\314': case '\315': case '\316': case '\317': | |
574 EMIT2('I'); EMIT2('\314'); EMIT2('\315'); | |
575 EMIT2('\316'); EMIT2('\317'); | |
576 return OK; | |
577 | |
578 case 'N': case '\321': | |
579 EMIT2('N'); EMIT2('\321'); | |
580 return OK; | |
581 | |
582 case 'O': case '\322': case '\323': case '\324': case '\325': | |
583 case '\326': | |
584 EMIT2('O'); EMIT2('\322'); EMIT2('\323'); | |
585 EMIT2('\324'); EMIT2('\325'); EMIT2('\326'); | |
586 return OK; | |
587 | |
588 case 'U': case '\331': case '\332': case '\333': case '\334': | |
589 EMIT2('U'); EMIT2('\331'); EMIT2('\332'); | |
590 EMIT2('\333'); EMIT2('\334'); | |
591 return OK; | |
592 | |
593 case 'Y': case '\335': | |
594 EMIT2('Y'); EMIT2('\335'); | |
595 return OK; | |
596 | |
597 case 'a': case '\340': case '\341': case '\342': | |
598 case '\343': case '\344': case '\345': | |
599 EMIT2('a'); EMIT2('\340'); EMIT2('\341'); | |
600 EMIT2('\342'); EMIT2('\343'); EMIT2('\344'); | |
601 EMIT2('\345'); | |
602 return OK; | |
603 | |
604 case 'c': case '\347': | |
605 EMIT2('c'); EMIT2('\347'); | |
606 return OK; | |
607 | |
608 case 'e': case '\350': case '\351': case '\352': case '\353': | |
609 EMIT2('e'); EMIT2('\350'); EMIT2('\351'); | |
610 EMIT2('\352'); EMIT2('\353'); | |
611 return OK; | |
612 | |
613 case 'i': case '\354': case '\355': case '\356': case '\357': | |
614 EMIT2('i'); EMIT2('\354'); EMIT2('\355'); | |
615 EMIT2('\356'); EMIT2('\357'); | |
616 return OK; | |
617 | |
618 case 'n': case '\361': | |
619 EMIT2('n'); EMIT2('\361'); | |
620 return OK; | |
621 | |
622 case 'o': case '\362': case '\363': case '\364': case '\365': | |
623 case '\366': | |
624 EMIT2('o'); EMIT2('\362'); EMIT2('\363'); | |
625 EMIT2('\364'); EMIT2('\365'); EMIT2('\366'); | |
626 return OK; | |
627 | |
628 case 'u': case '\371': case '\372': case '\373': case '\374': | |
629 EMIT2('u'); EMIT2('\371'); EMIT2('\372'); | |
630 EMIT2('\373'); EMIT2('\374'); | |
631 return OK; | |
632 | |
633 case 'y': case '\375': case '\377': | |
634 EMIT2('y'); EMIT2('\375'); EMIT2('\377'); | |
635 return OK; | |
636 | |
637 default: | |
638 return FAIL; | |
639 } | |
640 } | |
641 | |
642 EMIT(c); | |
643 return OK; | |
644 #undef EMIT2 | |
645 } | |
646 | |
647 /* | |
648 * Code to parse regular expression. | |
649 * | |
650 * We try to reuse parsing functions in regexp.c to | |
651 * minimize surprise and keep the syntax consistent. | |
652 */ | |
653 | |
654 /* | |
655 * Parse the lowest level. | |
656 * | |
657 * An atom can be one of a long list of items. Many atoms match one character | |
658 * in the text. It is often an ordinary character or a character class. | |
659 * Braces can be used to make a pattern into an atom. The "\z(\)" construct | |
660 * is only for syntax highlighting. | |
661 * | |
662 * atom ::= ordinary-atom | |
663 * or \( pattern \) | |
664 * or \%( pattern \) | |
665 * or \z( pattern \) | |
666 */ | |
667 static int | |
668 nfa_regatom() | |
669 { | |
670 int c; | |
671 int charclass; | |
672 int equiclass; | |
673 int collclass; | |
674 int got_coll_char; | |
675 char_u *p; | |
676 char_u *endp; | |
677 #ifdef FEAT_MBYTE | |
678 char_u *old_regparse = regparse; | |
679 #endif | |
680 int extra = 0; | |
681 int first; | |
682 int emit_range; | |
683 int negated; | |
684 int result; | |
685 int startc = -1; | |
686 int endc = -1; | |
687 int oldstartc = -1; | |
688 int cpo_lit; /* 'cpoptions' contains 'l' flag */ | |
689 int cpo_bsl; /* 'cpoptions' contains '\' flag */ | |
690 int glue; /* ID that will "glue" nodes together */ | |
691 | |
692 cpo_lit = vim_strchr(p_cpo, CPO_LITERAL) != NULL; | |
693 cpo_bsl = vim_strchr(p_cpo, CPO_BACKSL) != NULL; | |
694 | |
695 c = getchr(); | |
696 switch (c) | |
697 { | |
4543
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698 case NUL: |
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699 syntax_error = TRUE; |
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700 EMSG_RET_FAIL(_("E865: (NFA) Regexp end encountered prematurely")); |
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|
701 |
4444 | 702 case Magic('^'): |
703 EMIT(NFA_BOL); | |
704 break; | |
705 | |
706 case Magic('$'): | |
707 EMIT(NFA_EOL); | |
708 #if defined(FEAT_SYN_HL) || defined(PROTO) | |
709 had_eol = TRUE; | |
710 #endif | |
711 break; | |
712 | |
713 case Magic('<'): | |
714 EMIT(NFA_BOW); | |
715 break; | |
716 | |
717 case Magic('>'): | |
718 EMIT(NFA_EOW); | |
719 break; | |
720 | |
721 case Magic('_'): | |
722 c = no_Magic(getchr()); | |
723 if (c == '^') /* "\_^" is start-of-line */ | |
724 { | |
725 EMIT(NFA_BOL); | |
726 break; | |
727 } | |
728 if (c == '$') /* "\_$" is end-of-line */ | |
729 { | |
730 EMIT(NFA_EOL); | |
731 #if defined(FEAT_SYN_HL) || defined(PROTO) | |
732 had_eol = TRUE; | |
733 #endif | |
734 break; | |
735 } | |
736 | |
737 extra = ADD_NL; | |
738 | |
739 /* "\_[" is collection plus newline */ | |
740 if (c == '[') | |
4517
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diff
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|
741 goto collection; |
4444 | 742 |
743 /* "\_x" is character class plus newline */ | |
744 /*FALLTHROUGH*/ | |
745 | |
746 /* | |
747 * Character classes. | |
748 */ | |
749 case Magic('.'): | |
750 case Magic('i'): | |
751 case Magic('I'): | |
752 case Magic('k'): | |
753 case Magic('K'): | |
754 case Magic('f'): | |
755 case Magic('F'): | |
756 case Magic('p'): | |
757 case Magic('P'): | |
758 case Magic('s'): | |
759 case Magic('S'): | |
760 case Magic('d'): | |
761 case Magic('D'): | |
762 case Magic('x'): | |
763 case Magic('X'): | |
764 case Magic('o'): | |
765 case Magic('O'): | |
766 case Magic('w'): | |
767 case Magic('W'): | |
768 case Magic('h'): | |
769 case Magic('H'): | |
770 case Magic('a'): | |
771 case Magic('A'): | |
772 case Magic('l'): | |
773 case Magic('L'): | |
774 case Magic('u'): | |
775 case Magic('U'): | |
776 p = vim_strchr(classchars, no_Magic(c)); | |
777 if (p == NULL) | |
778 { | |
4571
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|
779 EMSGN("INTERNAL: Unknown character class char: %ld", c); |
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|
780 return FAIL; |
4444 | 781 } |
782 #ifdef FEAT_MBYTE | |
783 /* When '.' is followed by a composing char ignore the dot, so that | |
784 * the composing char is matched here. */ | |
785 if (enc_utf8 && c == Magic('.') && utf_iscomposing(peekchr())) | |
786 { | |
4535
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diff
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|
787 old_regparse = regparse; |
4444 | 788 c = getchr(); |
789 goto nfa_do_multibyte; | |
790 } | |
791 #endif | |
792 EMIT(nfa_classcodes[p - classchars]); | |
793 if (extra == ADD_NL) | |
794 { | |
795 EMIT(NFA_NEWL); | |
796 EMIT(NFA_OR); | |
797 regflags |= RF_HASNL; | |
798 } | |
799 break; | |
800 | |
801 case Magic('n'): | |
802 if (reg_string) | |
803 /* In a string "\n" matches a newline character. */ | |
804 EMIT(NL); | |
805 else | |
806 { | |
807 /* In buffer text "\n" matches the end of a line. */ | |
808 EMIT(NFA_NEWL); | |
809 regflags |= RF_HASNL; | |
810 } | |
811 break; | |
812 | |
813 case Magic('('): | |
814 if (nfa_reg(REG_PAREN) == FAIL) | |
815 return FAIL; /* cascaded error */ | |
816 break; | |
817 | |
818 case Magic('|'): | |
819 case Magic('&'): | |
820 case Magic(')'): | |
821 syntax_error = TRUE; | |
4450 | 822 EMSGN(_(e_misplaced), no_Magic(c)); |
4444 | 823 return FAIL; |
824 | |
825 case Magic('='): | |
826 case Magic('?'): | |
827 case Magic('+'): | |
828 case Magic('@'): | |
829 case Magic('*'): | |
830 case Magic('{'): | |
831 /* these should follow an atom, not form an atom */ | |
832 syntax_error = TRUE; | |
4450 | 833 EMSGN(_(e_misplaced), no_Magic(c)); |
4444 | 834 return FAIL; |
835 | |
4714
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4712
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|
836 case Magic('~'): |
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updated for version 7.3.1104
Bram Moolenaar <bram@vim.org>
parents:
4712
diff
changeset
|
837 { |
fc4d7f02ea3a
updated for version 7.3.1104
Bram Moolenaar <bram@vim.org>
parents:
4712
diff
changeset
|
838 char_u *lp; |
fc4d7f02ea3a
updated for version 7.3.1104
Bram Moolenaar <bram@vim.org>
parents:
4712
diff
changeset
|
839 |
fc4d7f02ea3a
updated for version 7.3.1104
Bram Moolenaar <bram@vim.org>
parents:
4712
diff
changeset
|
840 /* Previous substitute pattern. |
fc4d7f02ea3a
updated for version 7.3.1104
Bram Moolenaar <bram@vim.org>
parents:
4712
diff
changeset
|
841 * Generated as "\%(pattern\)". */ |
fc4d7f02ea3a
updated for version 7.3.1104
Bram Moolenaar <bram@vim.org>
parents:
4712
diff
changeset
|
842 if (reg_prev_sub == NULL) |
fc4d7f02ea3a
updated for version 7.3.1104
Bram Moolenaar <bram@vim.org>
parents:
4712
diff
changeset
|
843 { |
fc4d7f02ea3a
updated for version 7.3.1104
Bram Moolenaar <bram@vim.org>
parents:
4712
diff
changeset
|
844 EMSG(_(e_nopresub)); |
fc4d7f02ea3a
updated for version 7.3.1104
Bram Moolenaar <bram@vim.org>
parents:
4712
diff
changeset
|
845 return FAIL; |
fc4d7f02ea3a
updated for version 7.3.1104
Bram Moolenaar <bram@vim.org>
parents:
4712
diff
changeset
|
846 } |
fc4d7f02ea3a
updated for version 7.3.1104
Bram Moolenaar <bram@vim.org>
parents:
4712
diff
changeset
|
847 for (lp = reg_prev_sub; *lp != NUL; mb_cptr_adv(lp)) |
fc4d7f02ea3a
updated for version 7.3.1104
Bram Moolenaar <bram@vim.org>
parents:
4712
diff
changeset
|
848 { |
fc4d7f02ea3a
updated for version 7.3.1104
Bram Moolenaar <bram@vim.org>
parents:
4712
diff
changeset
|
849 EMIT(PTR2CHAR(lp)); |
fc4d7f02ea3a
updated for version 7.3.1104
Bram Moolenaar <bram@vim.org>
parents:
4712
diff
changeset
|
850 if (lp != reg_prev_sub) |
fc4d7f02ea3a
updated for version 7.3.1104
Bram Moolenaar <bram@vim.org>
parents:
4712
diff
changeset
|
851 EMIT(NFA_CONCAT); |
fc4d7f02ea3a
updated for version 7.3.1104
Bram Moolenaar <bram@vim.org>
parents:
4712
diff
changeset
|
852 } |
fc4d7f02ea3a
updated for version 7.3.1104
Bram Moolenaar <bram@vim.org>
parents:
4712
diff
changeset
|
853 EMIT(NFA_NOPEN); |
fc4d7f02ea3a
updated for version 7.3.1104
Bram Moolenaar <bram@vim.org>
parents:
4712
diff
changeset
|
854 break; |
fc4d7f02ea3a
updated for version 7.3.1104
Bram Moolenaar <bram@vim.org>
parents:
4712
diff
changeset
|
855 } |
4444 | 856 |
4647
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
857 case Magic('1'): |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
858 case Magic('2'): |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
859 case Magic('3'): |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
860 case Magic('4'): |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
861 case Magic('5'): |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
862 case Magic('6'): |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
863 case Magic('7'): |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
864 case Magic('8'): |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
865 case Magic('9'): |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
866 EMIT(NFA_BACKREF1 + (no_Magic(c) - '1')); |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
867 nfa_has_backref = TRUE; |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
868 break; |
4444 | 869 |
870 case Magic('z'): | |
871 c = no_Magic(getchr()); | |
872 switch (c) | |
873 { | |
874 case 's': | |
875 EMIT(NFA_ZSTART); | |
876 break; | |
877 case 'e': | |
878 EMIT(NFA_ZEND); | |
879 nfa_has_zend = TRUE; | |
4569
f262fb02889d
updated for version 7.3.1032
Bram Moolenaar <bram@vim.org>
parents:
4567
diff
changeset
|
880 break; |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
881 #ifdef FEAT_SYN_HL |
4444 | 882 case '1': |
883 case '2': | |
884 case '3': | |
885 case '4': | |
886 case '5': | |
887 case '6': | |
888 case '7': | |
889 case '8': | |
890 case '9': | |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
891 /* \z1...\z9 */ |
4688
371cc0c44097
updated for version 7.3.1091
Bram Moolenaar <bram@vim.org>
parents:
4686
diff
changeset
|
892 if (reg_do_extmatch != REX_USE) |
371cc0c44097
updated for version 7.3.1091
Bram Moolenaar <bram@vim.org>
parents:
4686
diff
changeset
|
893 EMSG_RET_FAIL(_(e_z1_not_allowed)); |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
894 EMIT(NFA_ZREF1 + (no_Magic(c) - '1')); |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
895 /* No need to set nfa_has_backref, the sub-matches don't |
4728
43de4ebbe7ad
updated for version 7.3.1111
Bram Moolenaar <bram@vim.org>
parents:
4726
diff
changeset
|
896 * change when \z1 .. \z9 matches or not. */ |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
897 re_has_z = REX_USE; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
898 break; |
4444 | 899 case '(': |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
900 /* \z( */ |
4688
371cc0c44097
updated for version 7.3.1091
Bram Moolenaar <bram@vim.org>
parents:
4686
diff
changeset
|
901 if (reg_do_extmatch != REX_SET) |
371cc0c44097
updated for version 7.3.1091
Bram Moolenaar <bram@vim.org>
parents:
4686
diff
changeset
|
902 EMSG_RET_FAIL(_(e_z_not_allowed)); |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
903 if (nfa_reg(REG_ZPAREN) == FAIL) |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
904 return FAIL; /* cascaded error */ |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
905 re_has_z = REX_SET; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
906 break; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
907 #endif |
4444 | 908 default: |
909 syntax_error = TRUE; | |
4450 | 910 EMSGN(_("E867: (NFA) Unknown operator '\\z%c'"), |
4444 | 911 no_Magic(c)); |
912 return FAIL; | |
913 } | |
914 break; | |
915 | |
916 case Magic('%'): | |
917 c = no_Magic(getchr()); | |
918 switch (c) | |
919 { | |
920 /* () without a back reference */ | |
921 case '(': | |
922 if (nfa_reg(REG_NPAREN) == FAIL) | |
923 return FAIL; | |
924 EMIT(NFA_NOPEN); | |
925 break; | |
926 | |
927 case 'd': /* %d123 decimal */ | |
928 case 'o': /* %o123 octal */ | |
929 case 'x': /* %xab hex 2 */ | |
930 case 'u': /* %uabcd hex 4 */ | |
931 case 'U': /* %U1234abcd hex 8 */ | |
4543
08ac46980953
updated for version 7.3.1019
Bram Moolenaar <bram@vim.org>
parents:
4541
diff
changeset
|
932 { |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
933 int nr; |
4543
08ac46980953
updated for version 7.3.1019
Bram Moolenaar <bram@vim.org>
parents:
4541
diff
changeset
|
934 |
08ac46980953
updated for version 7.3.1019
Bram Moolenaar <bram@vim.org>
parents:
4541
diff
changeset
|
935 switch (c) |
08ac46980953
updated for version 7.3.1019
Bram Moolenaar <bram@vim.org>
parents:
4541
diff
changeset
|
936 { |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
937 case 'd': nr = getdecchrs(); break; |
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
938 case 'o': nr = getoctchrs(); break; |
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
939 case 'x': nr = gethexchrs(2); break; |
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
940 case 'u': nr = gethexchrs(4); break; |
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
941 case 'U': nr = gethexchrs(8); break; |
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
942 default: nr = -1; break; |
4543
08ac46980953
updated for version 7.3.1019
Bram Moolenaar <bram@vim.org>
parents:
4541
diff
changeset
|
943 } |
08ac46980953
updated for version 7.3.1019
Bram Moolenaar <bram@vim.org>
parents:
4541
diff
changeset
|
944 |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
945 if (nr < 0) |
4543
08ac46980953
updated for version 7.3.1019
Bram Moolenaar <bram@vim.org>
parents:
4541
diff
changeset
|
946 EMSG2_RET_FAIL( |
08ac46980953
updated for version 7.3.1019
Bram Moolenaar <bram@vim.org>
parents:
4541
diff
changeset
|
947 _("E678: Invalid character after %s%%[dxouU]"), |
08ac46980953
updated for version 7.3.1019
Bram Moolenaar <bram@vim.org>
parents:
4541
diff
changeset
|
948 reg_magic == MAGIC_ALL); |
08ac46980953
updated for version 7.3.1019
Bram Moolenaar <bram@vim.org>
parents:
4541
diff
changeset
|
949 /* TODO: what if a composing character follows? */ |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
950 EMIT(nr); |
4543
08ac46980953
updated for version 7.3.1019
Bram Moolenaar <bram@vim.org>
parents:
4541
diff
changeset
|
951 } |
4444 | 952 break; |
953 | |
954 /* Catch \%^ and \%$ regardless of where they appear in the | |
955 * pattern -- regardless of whether or not it makes sense. */ | |
956 case '^': | |
957 EMIT(NFA_BOF); | |
958 break; | |
959 | |
960 case '$': | |
961 EMIT(NFA_EOF); | |
962 break; | |
963 | |
964 case '#': | |
4583
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
965 EMIT(NFA_CURSOR); |
4444 | 966 break; |
967 | |
4738
66a9e8fa6f45
updated for version 7.3.1116
Bram Moolenaar <bram@vim.org>
parents:
4734
diff
changeset
|
968 #ifdef FEAT_VISUAL |
4444 | 969 case 'V': |
4730
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4728
diff
changeset
|
970 EMIT(NFA_VISUAL); |
4444 | 971 break; |
4738
66a9e8fa6f45
updated for version 7.3.1116
Bram Moolenaar <bram@vim.org>
parents:
4734
diff
changeset
|
972 #endif |
4444 | 973 |
974 case '[': | |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
975 /* TODO: \%[abc] not supported yet */ |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
976 return FAIL; |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
977 |
4444 | 978 default: |
4583
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
979 { |
4655
779ca415f8e1
updated for version 7.3.1075
Bram Moolenaar <bram@vim.org>
parents:
4651
diff
changeset
|
980 int n = 0; |
4583
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
981 int cmp = c; |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
982 |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
983 if (c == '<' || c == '>') |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
984 c = getchr(); |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
985 while (VIM_ISDIGIT(c)) |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
986 { |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
987 n = n * 10 + (c - '0'); |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
988 c = getchr(); |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
989 } |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
990 if (c == 'l' || c == 'c' || c == 'v') |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
991 { |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
992 EMIT(n); |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
993 if (c == 'l') |
4732
0798b096bab3
updated for version 7.3.1113
Bram Moolenaar <bram@vim.org>
parents:
4730
diff
changeset
|
994 /* \%{n}l \%{n}<l \%{n}>l */ |
4583
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
995 EMIT(cmp == '<' ? NFA_LNUM_LT : |
4732
0798b096bab3
updated for version 7.3.1113
Bram Moolenaar <bram@vim.org>
parents:
4730
diff
changeset
|
996 cmp == '>' ? NFA_LNUM_GT : NFA_LNUM); |
4583
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
997 else if (c == 'c') |
4732
0798b096bab3
updated for version 7.3.1113
Bram Moolenaar <bram@vim.org>
parents:
4730
diff
changeset
|
998 /* \%{n}c \%{n}<c \%{n}>c */ |
4583
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
999 EMIT(cmp == '<' ? NFA_COL_LT : |
4732
0798b096bab3
updated for version 7.3.1113
Bram Moolenaar <bram@vim.org>
parents:
4730
diff
changeset
|
1000 cmp == '>' ? NFA_COL_GT : NFA_COL); |
4583
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
1001 else |
4732
0798b096bab3
updated for version 7.3.1113
Bram Moolenaar <bram@vim.org>
parents:
4730
diff
changeset
|
1002 /* \%{n}v \%{n}<v \%{n}>v */ |
4583
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
1003 EMIT(cmp == '<' ? NFA_VCOL_LT : |
4732
0798b096bab3
updated for version 7.3.1113
Bram Moolenaar <bram@vim.org>
parents:
4730
diff
changeset
|
1004 cmp == '>' ? NFA_VCOL_GT : NFA_VCOL); |
4583
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
1005 break; |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
1006 } |
4732
0798b096bab3
updated for version 7.3.1113
Bram Moolenaar <bram@vim.org>
parents:
4730
diff
changeset
|
1007 else if (c == '\'' && n == 0) |
0798b096bab3
updated for version 7.3.1113
Bram Moolenaar <bram@vim.org>
parents:
4730
diff
changeset
|
1008 { |
0798b096bab3
updated for version 7.3.1113
Bram Moolenaar <bram@vim.org>
parents:
4730
diff
changeset
|
1009 /* \%'m \%<'m \%>'m */ |
0798b096bab3
updated for version 7.3.1113
Bram Moolenaar <bram@vim.org>
parents:
4730
diff
changeset
|
1010 EMIT(getchr()); |
0798b096bab3
updated for version 7.3.1113
Bram Moolenaar <bram@vim.org>
parents:
4730
diff
changeset
|
1011 EMIT(cmp == '<' ? NFA_MARK_LT : |
0798b096bab3
updated for version 7.3.1113
Bram Moolenaar <bram@vim.org>
parents:
4730
diff
changeset
|
1012 cmp == '>' ? NFA_MARK_GT : NFA_MARK); |
0798b096bab3
updated for version 7.3.1113
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1013 break; |
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1014 } |
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1015 } |
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1016 syntax_error = TRUE; |
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1017 EMSGN(_("E867: (NFA) Unknown operator '\\%%%c'"), |
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1018 no_Magic(c)); |
4444 | 1019 return FAIL; |
1020 } | |
1021 break; | |
1022 | |
1023 case Magic('['): | |
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1024 collection: |
4444 | 1025 /* |
1026 * Glue is emitted between several atoms from the []. | |
1027 * It is either NFA_OR, or NFA_CONCAT. | |
1028 * | |
1029 * [abc] expands to 'a b NFA_OR c NFA_OR' (in postfix notation) | |
1030 * [^abc] expands to 'a NFA_NOT b NFA_NOT NFA_CONCAT c NFA_NOT | |
1031 * NFA_CONCAT NFA_END_NEG_RANGE NFA_CONCAT' (in postfix | |
1032 * notation) | |
1033 * | |
1034 */ | |
1035 | |
1036 | |
1037 /* Emit negation atoms, if needed. | |
1038 * The CONCAT below merges the NOT with the previous node. */ | |
1039 #define TRY_NEG() \ | |
1040 if (negated == TRUE) \ | |
1041 { \ | |
1042 EMIT(NFA_NOT); \ | |
1043 } | |
1044 | |
1045 /* Emit glue between important nodes : CONCAT or OR. */ | |
1046 #define EMIT_GLUE() \ | |
1047 if (first == FALSE) \ | |
1048 EMIT(glue); \ | |
1049 else \ | |
1050 first = FALSE; | |
1051 | |
1052 p = regparse; | |
1053 endp = skip_anyof(p); | |
1054 if (*endp == ']') | |
1055 { | |
1056 /* | |
1057 * Try to reverse engineer character classes. For example, | |
1058 * recognize that [0-9] stands for \d and [A-Za-z_] with \h, | |
1059 * and perform the necessary substitutions in the NFA. | |
1060 */ | |
1061 result = nfa_recognize_char_class(regparse, endp, | |
1062 extra == ADD_NL); | |
1063 if (result != FAIL) | |
1064 { | |
1065 if (result >= NFA_DIGIT && result <= NFA_NUPPER) | |
1066 EMIT(result); | |
1067 else /* must be char class + newline */ | |
1068 { | |
1069 EMIT(result - ADD_NL); | |
1070 EMIT(NFA_NEWL); | |
1071 EMIT(NFA_OR); | |
1072 } | |
1073 regparse = endp; | |
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1074 mb_ptr_adv(regparse); |
4444 | 1075 return OK; |
1076 } | |
1077 /* | |
1078 * Failed to recognize a character class. Use the simple | |
1079 * version that turns [abc] into 'a' OR 'b' OR 'c' | |
1080 */ | |
1081 startc = endc = oldstartc = -1; | |
1082 first = TRUE; /* Emitting first atom in this sequence? */ | |
1083 negated = FALSE; | |
1084 glue = NFA_OR; | |
1085 if (*regparse == '^') /* negated range */ | |
1086 { | |
1087 negated = TRUE; | |
1088 glue = NFA_CONCAT; | |
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1089 mb_ptr_adv(regparse); |
4444 | 1090 } |
1091 if (*regparse == '-') | |
1092 { | |
1093 startc = '-'; | |
1094 EMIT(startc); | |
1095 TRY_NEG(); | |
1096 EMIT_GLUE(); | |
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1097 mb_ptr_adv(regparse); |
4444 | 1098 } |
1099 /* Emit the OR branches for each character in the [] */ | |
1100 emit_range = FALSE; | |
1101 while (regparse < endp) | |
1102 { | |
1103 oldstartc = startc; | |
1104 startc = -1; | |
1105 got_coll_char = FALSE; | |
1106 if (*regparse == '[') | |
1107 { | |
1108 /* Check for [: :], [= =], [. .] */ | |
1109 equiclass = collclass = 0; | |
1110 charclass = get_char_class(®parse); | |
1111 if (charclass == CLASS_NONE) | |
1112 { | |
1113 equiclass = get_equi_class(®parse); | |
1114 if (equiclass == 0) | |
1115 collclass = get_coll_element(®parse); | |
1116 } | |
1117 | |
1118 /* Character class like [:alpha:] */ | |
1119 if (charclass != CLASS_NONE) | |
1120 { | |
1121 switch (charclass) | |
1122 { | |
1123 case CLASS_ALNUM: | |
1124 EMIT(NFA_CLASS_ALNUM); | |
1125 break; | |
1126 case CLASS_ALPHA: | |
1127 EMIT(NFA_CLASS_ALPHA); | |
1128 break; | |
1129 case CLASS_BLANK: | |
1130 EMIT(NFA_CLASS_BLANK); | |
1131 break; | |
1132 case CLASS_CNTRL: | |
1133 EMIT(NFA_CLASS_CNTRL); | |
1134 break; | |
1135 case CLASS_DIGIT: | |
1136 EMIT(NFA_CLASS_DIGIT); | |
1137 break; | |
1138 case CLASS_GRAPH: | |
1139 EMIT(NFA_CLASS_GRAPH); | |
1140 break; | |
1141 case CLASS_LOWER: | |
1142 EMIT(NFA_CLASS_LOWER); | |
1143 break; | |
1144 case CLASS_PRINT: | |
1145 EMIT(NFA_CLASS_PRINT); | |
1146 break; | |
1147 case CLASS_PUNCT: | |
1148 EMIT(NFA_CLASS_PUNCT); | |
1149 break; | |
1150 case CLASS_SPACE: | |
1151 EMIT(NFA_CLASS_SPACE); | |
1152 break; | |
1153 case CLASS_UPPER: | |
1154 EMIT(NFA_CLASS_UPPER); | |
1155 break; | |
1156 case CLASS_XDIGIT: | |
1157 EMIT(NFA_CLASS_XDIGIT); | |
1158 break; | |
1159 case CLASS_TAB: | |
1160 EMIT(NFA_CLASS_TAB); | |
1161 break; | |
1162 case CLASS_RETURN: | |
1163 EMIT(NFA_CLASS_RETURN); | |
1164 break; | |
1165 case CLASS_BACKSPACE: | |
1166 EMIT(NFA_CLASS_BACKSPACE); | |
1167 break; | |
1168 case CLASS_ESCAPE: | |
1169 EMIT(NFA_CLASS_ESCAPE); | |
1170 break; | |
1171 } | |
1172 TRY_NEG(); | |
1173 EMIT_GLUE(); | |
1174 continue; | |
1175 } | |
1176 /* Try equivalence class [=a=] and the like */ | |
1177 if (equiclass != 0) | |
1178 { | |
1179 result = nfa_emit_equi_class(equiclass, negated); | |
1180 if (result == FAIL) | |
1181 { | |
1182 /* should never happen */ | |
1183 EMSG_RET_FAIL(_("E868: Error building NFA with equivalence class!")); | |
1184 } | |
1185 EMIT_GLUE(); | |
1186 continue; | |
1187 } | |
1188 /* Try collating class like [. .] */ | |
1189 if (collclass != 0) | |
1190 { | |
1191 startc = collclass; /* allow [.a.]-x as a range */ | |
1192 /* Will emit the proper atom at the end of the | |
1193 * while loop. */ | |
1194 } | |
1195 } | |
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1196 /* Try a range like 'a-x' or '\t-z'. Also allows '-' as a |
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1197 * start character. */ |
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1198 if (*regparse == '-' && oldstartc != -1) |
4444 | 1199 { |
1200 emit_range = TRUE; | |
1201 startc = oldstartc; | |
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1202 mb_ptr_adv(regparse); |
4444 | 1203 continue; /* reading the end of the range */ |
1204 } | |
1205 | |
1206 /* Now handle simple and escaped characters. | |
1207 * Only "\]", "\^", "\]" and "\\" are special in Vi. Vim | |
1208 * accepts "\t", "\e", etc., but only when the 'l' flag in | |
1209 * 'cpoptions' is not included. | |
1210 * Posix doesn't recognize backslash at all. | |
1211 */ | |
1212 if (*regparse == '\\' | |
1213 && !cpo_bsl | |
1214 && regparse + 1 <= endp | |
1215 && (vim_strchr(REGEXP_INRANGE, regparse[1]) != NULL | |
1216 || (!cpo_lit | |
1217 && vim_strchr(REGEXP_ABBR, regparse[1]) | |
1218 != NULL) | |
1219 ) | |
1220 ) | |
1221 { | |
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1222 mb_ptr_adv(regparse); |
4444 | 1223 |
4507
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1224 if (*regparse == 'n') |
4444 | 1225 startc = reg_string ? NL : NFA_NEWL; |
1226 else | |
1227 if (*regparse == 'd' | |
1228 || *regparse == 'o' | |
1229 || *regparse == 'x' | |
1230 || *regparse == 'u' | |
1231 || *regparse == 'U' | |
1232 ) | |
1233 { | |
1234 /* TODO(RE) This needs more testing */ | |
1235 startc = coll_get_char(); | |
1236 got_coll_char = TRUE; | |
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1237 mb_ptr_back(old_regparse, regparse); |
4444 | 1238 } |
1239 else | |
1240 { | |
1241 /* \r,\t,\e,\b */ | |
1242 startc = backslash_trans(*regparse); | |
1243 } | |
1244 } | |
1245 | |
1246 /* Normal printable char */ | |
1247 if (startc == -1) | |
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1248 startc = PTR2CHAR(regparse); |
4444 | 1249 |
1250 /* Previous char was '-', so this char is end of range. */ | |
1251 if (emit_range) | |
1252 { | |
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1253 endc = startc; |
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1254 startc = oldstartc; |
4444 | 1255 if (startc > endc) |
1256 EMSG_RET_FAIL(_(e_invrange)); | |
1257 #ifdef FEAT_MBYTE | |
1258 if (has_mbyte && ((*mb_char2len)(startc) > 1 | |
1259 || (*mb_char2len)(endc) > 1)) | |
1260 { | |
1261 if (endc > startc + 256) | |
1262 EMSG_RET_FAIL(_(e_invrange)); | |
1263 /* Emit the range. "startc" was already emitted, so | |
1264 * skip it. */ | |
1265 for (c = startc + 1; c <= endc; c++) | |
1266 { | |
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1267 EMIT(c); |
4444 | 1268 TRY_NEG(); |
1269 EMIT_GLUE(); | |
1270 } | |
1271 } | |
1272 else | |
1273 #endif | |
1274 { | |
1275 #ifdef EBCDIC | |
1276 int alpha_only = FALSE; | |
1277 | |
1278 /* for alphabetical range skip the gaps | |
1279 * 'i'-'j', 'r'-'s', 'I'-'J' and 'R'-'S'. */ | |
1280 if (isalpha(startc) && isalpha(endc)) | |
1281 alpha_only = TRUE; | |
1282 #endif | |
1283 /* Emit the range. "startc" was already emitted, so | |
1284 * skip it. */ | |
1285 for (c = startc + 1; c <= endc; c++) | |
1286 #ifdef EBCDIC | |
1287 if (!alpha_only || isalpha(startc)) | |
1288 #endif | |
1289 { | |
1290 EMIT(c); | |
1291 TRY_NEG(); | |
1292 EMIT_GLUE(); | |
1293 } | |
1294 } | |
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1295 emit_range = FALSE; |
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1296 startc = -1; |
4444 | 1297 } |
1298 else | |
1299 { | |
1300 /* | |
1301 * This char (startc) is not part of a range. Just | |
1302 * emit it. | |
1303 * | |
1304 * Normally, simply emit startc. But if we get char | |
1305 * code=0 from a collating char, then replace it with | |
1306 * 0x0a. | |
1307 * | |
1308 * This is needed to completely mimic the behaviour of | |
1309 * the backtracking engine. | |
1310 */ | |
1311 if (got_coll_char == TRUE && startc == 0) | |
1312 EMIT(0x0a); | |
1313 else | |
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1314 EMIT(startc); |
4444 | 1315 TRY_NEG(); |
1316 EMIT_GLUE(); | |
1317 } | |
1318 | |
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1319 mb_ptr_adv(regparse); |
4444 | 1320 } /* while (p < endp) */ |
1321 | |
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1322 mb_ptr_back(old_regparse, regparse); |
4444 | 1323 if (*regparse == '-') /* if last, '-' is just a char */ |
1324 { | |
1325 EMIT('-'); | |
1326 TRY_NEG(); | |
1327 EMIT_GLUE(); | |
1328 } | |
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1329 mb_ptr_adv(regparse); |
4444 | 1330 |
1331 /* skip the trailing ] */ | |
1332 regparse = endp; | |
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1333 mb_ptr_adv(regparse); |
4444 | 1334 if (negated == TRUE) |
1335 { | |
1336 /* Mark end of negated char range */ | |
1337 EMIT(NFA_END_NEG_RANGE); | |
1338 EMIT(NFA_CONCAT); | |
1339 } | |
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1340 |
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1341 /* \_[] also matches \n but it's not negated */ |
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1342 if (extra == ADD_NL) |
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1343 { |
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1344 EMIT(reg_string ? NL : NFA_NEWL); |
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1345 EMIT(NFA_OR); |
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1346 } |
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1347 |
4444 | 1348 return OK; |
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1349 } /* if exists closing ] */ |
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1350 |
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1351 if (reg_strict) |
4444 | 1352 { |
1353 syntax_error = TRUE; | |
1354 EMSG_RET_FAIL(_(e_missingbracket)); | |
1355 } | |
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1356 /* FALLTHROUGH */ |
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1357 |
4444 | 1358 default: |
1359 { | |
1360 #ifdef FEAT_MBYTE | |
1361 int plen; | |
1362 | |
1363 nfa_do_multibyte: | |
4543
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1364 /* plen is length of current char with composing chars */ |
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1365 if (enc_utf8 && ((*mb_char2len)(c) |
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1366 != (plen = (*mb_ptr2len)(old_regparse)) |
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1367 || utf_iscomposing(c))) |
4444 | 1368 { |
4549
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1369 int i = 0; |
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1370 |
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1371 /* A base character plus composing characters, or just one |
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1372 * or more composing characters. |
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1373 * This requires creating a separate atom as if enclosing |
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1374 * the characters in (), where NFA_COMPOSING is the ( and |
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1375 * NFA_END_COMPOSING is the ). Note that right now we are |
4444 | 1376 * building the postfix form, not the NFA itself; |
1377 * a composing char could be: a, b, c, NFA_COMPOSING | |
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1378 * where 'b' and 'c' are chars with codes > 256. */ |
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1379 for (;;) |
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1380 { |
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1381 EMIT(c); |
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1382 if (i > 0) |
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1383 EMIT(NFA_CONCAT); |
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1384 if ((i += utf_char2len(c)) >= plen) |
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1385 break; |
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|
1386 c = utf_ptr2char(old_regparse + i); |
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1387 } |
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1388 EMIT(NFA_COMPOSING); |
4444 | 1389 regparse = old_regparse + plen; |
1390 } | |
1391 else | |
1392 #endif | |
1393 { | |
1394 c = no_Magic(c); | |
1395 EMIT(c); | |
1396 } | |
1397 return OK; | |
1398 } | |
1399 } | |
1400 | |
1401 #undef TRY_NEG | |
1402 #undef EMIT_GLUE | |
1403 | |
1404 return OK; | |
1405 } | |
1406 | |
1407 /* | |
1408 * Parse something followed by possible [*+=]. | |
1409 * | |
1410 * A piece is an atom, possibly followed by a multi, an indication of how many | |
1411 * times the atom can be matched. Example: "a*" matches any sequence of "a" | |
1412 * characters: "", "a", "aa", etc. | |
1413 * | |
1414 * piece ::= atom | |
1415 * or atom multi | |
1416 */ | |
1417 static int | |
1418 nfa_regpiece() | |
1419 { | |
1420 int i; | |
1421 int op; | |
1422 int ret; | |
1423 long minval, maxval; | |
1424 int greedy = TRUE; /* Braces are prefixed with '-' ? */ | |
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|
1425 parse_state_T old_state; |
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|
1426 parse_state_T new_state; |
4444 | 1427 int c2; |
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1428 int old_post_pos; |
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1429 int my_post_start; |
4444 | 1430 int quest; |
1431 | |
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1432 /* Save the current parse state, so that we can use it if <atom>{m,n} is |
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1433 * next. */ |
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1434 save_parse_state(&old_state); |
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|
1435 |
4444 | 1436 /* store current pos in the postfix form, for \{m,n} involving 0s */ |
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|
1437 my_post_start = (int)(post_ptr - post_start); |
4444 | 1438 |
1439 ret = nfa_regatom(); | |
1440 if (ret == FAIL) | |
1441 return FAIL; /* cascaded error */ | |
1442 | |
1443 op = peekchr(); | |
1444 if (re_multi_type(op) == NOT_MULTI) | |
1445 return OK; | |
1446 | |
1447 skipchr(); | |
1448 switch (op) | |
1449 { | |
1450 case Magic('*'): | |
1451 EMIT(NFA_STAR); | |
1452 break; | |
1453 | |
1454 case Magic('+'): | |
1455 /* | |
1456 * Trick: Normally, (a*)\+ would match the whole input "aaa". The | |
1457 * first and only submatch would be "aaa". But the backtracking | |
1458 * engine interprets the plus as "try matching one more time", and | |
1459 * a* matches a second time at the end of the input, the empty | |
1460 * string. | |
1461 * The submatch will the empty string. | |
1462 * | |
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1463 * In order to be consistent with the old engine, we replace |
05d57d7c2d55
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1464 * <atom>+ with <atom><atom>* |
4444 | 1465 */ |
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|
1466 restore_parse_state(&old_state); |
4444 | 1467 curchr = -1; |
1468 if (nfa_regatom() == FAIL) | |
1469 return FAIL; | |
1470 EMIT(NFA_STAR); | |
1471 EMIT(NFA_CONCAT); | |
1472 skipchr(); /* skip the \+ */ | |
1473 break; | |
1474 | |
1475 case Magic('@'): | |
4682
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1476 c2 = getdecchrs(); |
4444 | 1477 op = no_Magic(getchr()); |
4682
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1478 i = 0; |
4444 | 1479 switch(op) |
1480 { | |
1481 case '=': | |
4682
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1482 /* \@= */ |
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1483 i = NFA_PREV_ATOM_NO_WIDTH; |
4444 | 1484 break; |
4661
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1485 case '!': |
4682
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1486 /* \@! */ |
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1487 i = NFA_PREV_ATOM_NO_WIDTH_NEG; |
4661
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1488 break; |
4444 | 1489 case '<': |
4682
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1490 op = no_Magic(getchr()); |
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1491 if (op == '=') |
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1492 /* \@<= */ |
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1493 i = NFA_PREV_ATOM_JUST_BEFORE; |
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1494 else if (op == '!') |
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|
1495 /* \@<! */ |
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|
1496 i = NFA_PREV_ATOM_JUST_BEFORE_NEG; |
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1497 break; |
4444 | 1498 case '>': |
4682
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1499 /* \@> Not supported yet */ |
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1500 /* i = NFA_PREV_ATOM_LIKE_PATTERN; */ |
4444 | 1501 return FAIL; |
1502 } | |
4682
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1503 if (i == 0) |
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1504 { |
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|
1505 syntax_error = TRUE; |
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|
1506 EMSGN(_("E869: (NFA) Unknown operator '\\@%c'"), op); |
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1507 return FAIL; |
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|
1508 } |
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1509 EMIT(i); |
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1510 if (i == NFA_PREV_ATOM_JUST_BEFORE |
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1511 || i == NFA_PREV_ATOM_JUST_BEFORE_NEG) |
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|
1512 EMIT(c2); |
4444 | 1513 break; |
1514 | |
1515 case Magic('?'): | |
1516 case Magic('='): | |
1517 EMIT(NFA_QUEST); | |
1518 break; | |
1519 | |
1520 case Magic('{'): | |
1521 /* a{2,5} will expand to 'aaa?a?a?' | |
1522 * a{-1,3} will expand to 'aa??a??', where ?? is the nongreedy | |
1523 * version of '?' | |
1524 * \v(ab){2,3} will expand to '(ab)(ab)(ab)?', where all the | |
1525 * parenthesis have the same id | |
1526 */ | |
1527 | |
1528 greedy = TRUE; | |
1529 c2 = peekchr(); | |
1530 if (c2 == '-' || c2 == Magic('-')) | |
1531 { | |
1532 skipchr(); | |
1533 greedy = FALSE; | |
1534 } | |
1535 if (!read_limits(&minval, &maxval)) | |
1536 { | |
1537 syntax_error = TRUE; | |
1538 EMSG_RET_FAIL(_("E870: (NFA regexp) Error reading repetition limits")); | |
1539 } | |
1540 /* <atom>{0,inf}, <atom>{0,} and <atom>{} are equivalent to | |
1541 * <atom>* */ | |
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1542 if (minval == 0 && maxval == MAX_LIMIT) |
4444 | 1543 { |
4675
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1544 if (greedy) |
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|
1545 /* \{}, \{0,} */ |
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1546 EMIT(NFA_STAR); |
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|
1547 else |
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|
1548 /* \{-}, \{-0,} */ |
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|
1549 EMIT(NFA_STAR_NONGREEDY); |
4444 | 1550 break; |
1551 } | |
1552 | |
1553 /* Special case: x{0} or x{-0} */ | |
1554 if (maxval == 0) | |
1555 { | |
1556 /* Ignore result of previous call to nfa_regatom() */ | |
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|
1557 post_ptr = post_start + my_post_start; |
4444 | 1558 /* NFA_SKIP_CHAR has 0-length and works everywhere */ |
1559 EMIT(NFA_SKIP_CHAR); | |
1560 return OK; | |
1561 } | |
1562 | |
1563 /* Ignore previous call to nfa_regatom() */ | |
4651
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|
1564 post_ptr = post_start + my_post_start; |
4679
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|
1565 /* Save parse state after the repeated atom and the \{} */ |
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|
1566 save_parse_state(&new_state); |
4444 | 1567 |
1568 quest = (greedy == TRUE? NFA_QUEST : NFA_QUEST_NONGREEDY); | |
1569 for (i = 0; i < maxval; i++) | |
1570 { | |
1571 /* Goto beginning of the repeated atom */ | |
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|
1572 restore_parse_state(&old_state); |
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|
1573 old_post_pos = (int)(post_ptr - post_start); |
4444 | 1574 if (nfa_regatom() == FAIL) |
1575 return FAIL; | |
1576 /* after "minval" times, atoms are optional */ | |
1577 if (i + 1 > minval) | |
4673
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|
1578 { |
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|
1579 if (maxval == MAX_LIMIT) |
4675
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1580 { |
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1581 if (greedy) |
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|
1582 EMIT(NFA_STAR); |
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1583 else |
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|
1584 EMIT(NFA_STAR_NONGREEDY); |
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|
1585 } |
4673
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|
1586 else |
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1587 EMIT(quest); |
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|
1588 } |
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|
1589 if (old_post_pos != my_post_start) |
4444 | 1590 EMIT(NFA_CONCAT); |
4673
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|
1591 if (i + 1 > minval && maxval == MAX_LIMIT) |
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|
1592 break; |
4444 | 1593 } |
1594 | |
1595 /* Go to just after the repeated atom and the \{} */ | |
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|
1596 restore_parse_state(&new_state); |
4444 | 1597 curchr = -1; |
1598 | |
1599 break; | |
1600 | |
1601 | |
1602 default: | |
1603 break; | |
1604 } /* end switch */ | |
1605 | |
1606 if (re_multi_type(peekchr()) != NOT_MULTI) | |
1607 { | |
1608 /* Can't have a multi follow a multi. */ | |
1609 syntax_error = TRUE; | |
1610 EMSG_RET_FAIL(_("E871: (NFA regexp) Can't have a multi follow a multi !")); | |
1611 } | |
1612 | |
1613 return OK; | |
1614 } | |
1615 | |
1616 /* | |
1617 * Parse one or more pieces, concatenated. It matches a match for the | |
1618 * first piece, followed by a match for the second piece, etc. Example: | |
1619 * "f[0-9]b", first matches "f", then a digit and then "b". | |
1620 * | |
1621 * concat ::= piece | |
1622 * or piece piece | |
1623 * or piece piece piece | |
1624 * etc. | |
1625 */ | |
1626 static int | |
1627 nfa_regconcat() | |
1628 { | |
1629 int cont = TRUE; | |
1630 int first = TRUE; | |
1631 | |
1632 while (cont) | |
1633 { | |
1634 switch (peekchr()) | |
1635 { | |
1636 case NUL: | |
1637 case Magic('|'): | |
1638 case Magic('&'): | |
1639 case Magic(')'): | |
1640 cont = FALSE; | |
1641 break; | |
1642 | |
1643 case Magic('Z'): | |
1644 #ifdef FEAT_MBYTE | |
1645 regflags |= RF_ICOMBINE; | |
1646 #endif | |
1647 skipchr_keepstart(); | |
1648 break; | |
1649 case Magic('c'): | |
1650 regflags |= RF_ICASE; | |
1651 skipchr_keepstart(); | |
1652 break; | |
1653 case Magic('C'): | |
1654 regflags |= RF_NOICASE; | |
1655 skipchr_keepstart(); | |
1656 break; | |
1657 case Magic('v'): | |
1658 reg_magic = MAGIC_ALL; | |
1659 skipchr_keepstart(); | |
1660 curchr = -1; | |
1661 break; | |
1662 case Magic('m'): | |
1663 reg_magic = MAGIC_ON; | |
1664 skipchr_keepstart(); | |
1665 curchr = -1; | |
1666 break; | |
1667 case Magic('M'): | |
1668 reg_magic = MAGIC_OFF; | |
1669 skipchr_keepstart(); | |
1670 curchr = -1; | |
1671 break; | |
1672 case Magic('V'): | |
1673 reg_magic = MAGIC_NONE; | |
1674 skipchr_keepstart(); | |
1675 curchr = -1; | |
1676 break; | |
1677 | |
1678 default: | |
1679 if (nfa_regpiece() == FAIL) | |
1680 return FAIL; | |
1681 if (first == FALSE) | |
1682 EMIT(NFA_CONCAT); | |
1683 else | |
1684 first = FALSE; | |
1685 break; | |
1686 } | |
1687 } | |
1688 | |
1689 return OK; | |
1690 } | |
1691 | |
1692 /* | |
1693 * Parse a branch, one or more concats, separated by "\&". It matches the | |
1694 * last concat, but only if all the preceding concats also match at the same | |
1695 * position. Examples: | |
1696 * "foobeep\&..." matches "foo" in "foobeep". | |
1697 * ".*Peter\&.*Bob" matches in a line containing both "Peter" and "Bob" | |
1698 * | |
1699 * branch ::= concat | |
1700 * or concat \& concat | |
1701 * or concat \& concat \& concat | |
1702 * etc. | |
1703 */ | |
1704 static int | |
1705 nfa_regbranch() | |
1706 { | |
1707 int ch; | |
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|
1708 int old_post_pos; |
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|
1709 |
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|
1710 old_post_pos = (int)(post_ptr - post_start); |
4444 | 1711 |
1712 /* First branch, possibly the only one */ | |
1713 if (nfa_regconcat() == FAIL) | |
1714 return FAIL; | |
1715 | |
1716 ch = peekchr(); | |
1717 /* Try next concats */ | |
1718 while (ch == Magic('&')) | |
1719 { | |
1720 skipchr(); | |
1721 EMIT(NFA_NOPEN); | |
1722 EMIT(NFA_PREV_ATOM_NO_WIDTH); | |
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1723 old_post_pos = (int)(post_ptr - post_start); |
4444 | 1724 if (nfa_regconcat() == FAIL) |
1725 return FAIL; | |
1726 /* if concat is empty, skip a input char. But do emit a node */ | |
4651
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|
1727 if (old_post_pos == (int)(post_ptr - post_start)) |
4444 | 1728 EMIT(NFA_SKIP_CHAR); |
1729 EMIT(NFA_CONCAT); | |
1730 ch = peekchr(); | |
1731 } | |
1732 | |
1733 /* Even if a branch is empty, emit one node for it */ | |
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|
1734 if (old_post_pos == (int)(post_ptr - post_start)) |
4444 | 1735 EMIT(NFA_SKIP_CHAR); |
1736 | |
1737 return OK; | |
1738 } | |
1739 | |
1740 /* | |
1741 * Parse a pattern, one or more branches, separated by "\|". It matches | |
1742 * anything that matches one of the branches. Example: "foo\|beep" matches | |
1743 * "foo" and matches "beep". If more than one branch matches, the first one | |
1744 * is used. | |
1745 * | |
1746 * pattern ::= branch | |
1747 * or branch \| branch | |
1748 * or branch \| branch \| branch | |
1749 * etc. | |
1750 */ | |
1751 static int | |
1752 nfa_reg(paren) | |
1753 int paren; /* REG_NOPAREN, REG_PAREN, REG_NPAREN or REG_ZPAREN */ | |
1754 { | |
1755 int parno = 0; | |
1756 | |
1757 if (paren == REG_PAREN) | |
1758 { | |
1759 if (regnpar >= NSUBEXP) /* Too many `(' */ | |
1760 { | |
1761 syntax_error = TRUE; | |
1762 EMSG_RET_FAIL(_("E872: (NFA regexp) Too many '('")); | |
1763 } | |
1764 parno = regnpar++; | |
1765 } | |
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1766 #ifdef FEAT_SYN_HL |
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1767 else if (paren == REG_ZPAREN) |
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|
1768 { |
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|
1769 /* Make a ZOPEN node. */ |
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|
1770 if (regnzpar >= NSUBEXP) |
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|
1771 { |
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|
1772 syntax_error = TRUE; |
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|
1773 EMSG_RET_FAIL(_("E879: (NFA regexp) Too many \\z(")); |
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1774 } |
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1775 parno = regnzpar++; |
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|
1776 } |
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1777 #endif |
4444 | 1778 |
1779 if (nfa_regbranch() == FAIL) | |
1780 return FAIL; /* cascaded error */ | |
1781 | |
1782 while (peekchr() == Magic('|')) | |
1783 { | |
1784 skipchr(); | |
1785 if (nfa_regbranch() == FAIL) | |
1786 return FAIL; /* cascaded error */ | |
1787 EMIT(NFA_OR); | |
1788 } | |
1789 | |
1790 /* Check for proper termination. */ | |
1791 if (paren != REG_NOPAREN && getchr() != Magic(')')) | |
1792 { | |
1793 syntax_error = TRUE; | |
1794 if (paren == REG_NPAREN) | |
1795 EMSG2_RET_FAIL(_(e_unmatchedpp), reg_magic == MAGIC_ALL); | |
1796 else | |
1797 EMSG2_RET_FAIL(_(e_unmatchedp), reg_magic == MAGIC_ALL); | |
1798 } | |
1799 else if (paren == REG_NOPAREN && peekchr() != NUL) | |
1800 { | |
1801 syntax_error = TRUE; | |
1802 if (peekchr() == Magic(')')) | |
1803 EMSG2_RET_FAIL(_(e_unmatchedpar), reg_magic == MAGIC_ALL); | |
1804 else | |
1805 EMSG_RET_FAIL(_("E873: (NFA regexp) proper termination error")); | |
1806 } | |
1807 /* | |
1808 * Here we set the flag allowing back references to this set of | |
1809 * parentheses. | |
1810 */ | |
1811 if (paren == REG_PAREN) | |
1812 { | |
1813 had_endbrace[parno] = TRUE; /* have seen the close paren */ | |
1814 EMIT(NFA_MOPEN + parno); | |
1815 } | |
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1816 #ifdef FEAT_SYN_HL |
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1817 else if (paren == REG_ZPAREN) |
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1818 EMIT(NFA_ZOPEN + parno); |
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1819 #endif |
4444 | 1820 |
1821 return OK; | |
1822 } | |
1823 | |
1824 #ifdef DEBUG | |
1825 static char_u code[50]; | |
1826 | |
1827 static void | |
1828 nfa_set_code(c) | |
1829 int c; | |
1830 { | |
1831 int addnl = FALSE; | |
1832 | |
1833 if (c >= NFA_FIRST_NL && c <= NFA_LAST_NL) | |
1834 { | |
1835 addnl = TRUE; | |
1836 c -= ADD_NL; | |
1837 } | |
1838 | |
1839 STRCPY(code, ""); | |
1840 switch (c) | |
1841 { | |
1842 case NFA_MATCH: STRCPY(code, "NFA_MATCH "); break; | |
1843 case NFA_SPLIT: STRCPY(code, "NFA_SPLIT "); break; | |
1844 case NFA_CONCAT: STRCPY(code, "NFA_CONCAT "); break; | |
1845 case NFA_NEWL: STRCPY(code, "NFA_NEWL "); break; | |
1846 case NFA_ZSTART: STRCPY(code, "NFA_ZSTART"); break; | |
1847 case NFA_ZEND: STRCPY(code, "NFA_ZEND"); break; | |
1848 | |
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1849 case NFA_BACKREF1: STRCPY(code, "NFA_BACKREF1"); break; |
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1850 case NFA_BACKREF2: STRCPY(code, "NFA_BACKREF2"); break; |
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1851 case NFA_BACKREF3: STRCPY(code, "NFA_BACKREF3"); break; |
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1852 case NFA_BACKREF4: STRCPY(code, "NFA_BACKREF4"); break; |
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1853 case NFA_BACKREF5: STRCPY(code, "NFA_BACKREF5"); break; |
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1854 case NFA_BACKREF6: STRCPY(code, "NFA_BACKREF6"); break; |
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1855 case NFA_BACKREF7: STRCPY(code, "NFA_BACKREF7"); break; |
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1856 case NFA_BACKREF8: STRCPY(code, "NFA_BACKREF8"); break; |
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1857 case NFA_BACKREF9: STRCPY(code, "NFA_BACKREF9"); break; |
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1858 #ifdef FEAT_SYN_HL |
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1859 case NFA_ZREF1: STRCPY(code, "NFA_ZREF1"); break; |
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1860 case NFA_ZREF2: STRCPY(code, "NFA_ZREF2"); break; |
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1861 case NFA_ZREF3: STRCPY(code, "NFA_ZREF3"); break; |
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1862 case NFA_ZREF4: STRCPY(code, "NFA_ZREF4"); break; |
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1863 case NFA_ZREF5: STRCPY(code, "NFA_ZREF5"); break; |
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1864 case NFA_ZREF6: STRCPY(code, "NFA_ZREF6"); break; |
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1865 case NFA_ZREF7: STRCPY(code, "NFA_ZREF7"); break; |
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1866 case NFA_ZREF8: STRCPY(code, "NFA_ZREF8"); break; |
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1867 case NFA_ZREF9: STRCPY(code, "NFA_ZREF9"); break; |
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1868 #endif |
4571
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1869 case NFA_SKIP: STRCPY(code, "NFA_SKIP"); break; |
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1870 |
4444 | 1871 case NFA_PREV_ATOM_NO_WIDTH: |
1872 STRCPY(code, "NFA_PREV_ATOM_NO_WIDTH"); break; | |
4583
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1873 case NFA_PREV_ATOM_NO_WIDTH_NEG: |
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1874 STRCPY(code, "NFA_PREV_ATOM_NO_WIDTH_NEG"); break; |
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1875 case NFA_PREV_ATOM_JUST_BEFORE: |
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1876 STRCPY(code, "NFA_PREV_ATOM_JUST_BEFORE"); break; |
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1877 case NFA_PREV_ATOM_JUST_BEFORE_NEG: |
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1878 STRCPY(code, "NFA_PREV_ATOM_JUST_BEFORE_NEG"); break; |
4657
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1879 case NFA_NOPEN: STRCPY(code, "NFA_NOPEN"); break; |
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1880 case NFA_NCLOSE: STRCPY(code, "NFA_NCLOSE"); break; |
4444 | 1881 case NFA_START_INVISIBLE: STRCPY(code, "NFA_START_INVISIBLE"); break; |
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1882 case NFA_START_INVISIBLE_BEFORE: |
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1883 STRCPY(code, "NFA_START_INVISIBLE_BEFORE"); break; |
4444 | 1884 case NFA_END_INVISIBLE: STRCPY(code, "NFA_END_INVISIBLE"); break; |
1885 | |
1886 case NFA_COMPOSING: STRCPY(code, "NFA_COMPOSING"); break; | |
1887 case NFA_END_COMPOSING: STRCPY(code, "NFA_END_COMPOSING"); break; | |
1888 | |
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1889 case NFA_MOPEN: |
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1890 case NFA_MOPEN1: |
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1891 case NFA_MOPEN2: |
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1892 case NFA_MOPEN3: |
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1893 case NFA_MOPEN4: |
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1894 case NFA_MOPEN5: |
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1895 case NFA_MOPEN6: |
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1896 case NFA_MOPEN7: |
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1897 case NFA_MOPEN8: |
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1898 case NFA_MOPEN9: |
4444 | 1899 STRCPY(code, "NFA_MOPEN(x)"); |
1900 code[10] = c - NFA_MOPEN + '0'; | |
1901 break; | |
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1902 case NFA_MCLOSE: |
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1903 case NFA_MCLOSE1: |
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1904 case NFA_MCLOSE2: |
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1905 case NFA_MCLOSE3: |
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1906 case NFA_MCLOSE4: |
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1907 case NFA_MCLOSE5: |
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1908 case NFA_MCLOSE6: |
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1909 case NFA_MCLOSE7: |
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1910 case NFA_MCLOSE8: |
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1911 case NFA_MCLOSE9: |
4444 | 1912 STRCPY(code, "NFA_MCLOSE(x)"); |
1913 code[11] = c - NFA_MCLOSE + '0'; | |
1914 break; | |
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1915 #ifdef FEAT_SYN_HL |
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1916 case NFA_ZOPEN: |
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1917 case NFA_ZOPEN1: |
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1918 case NFA_ZOPEN2: |
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1919 case NFA_ZOPEN3: |
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1920 case NFA_ZOPEN4: |
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1921 case NFA_ZOPEN5: |
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1922 case NFA_ZOPEN6: |
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1923 case NFA_ZOPEN7: |
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1924 case NFA_ZOPEN8: |
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1925 case NFA_ZOPEN9: |
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1926 STRCPY(code, "NFA_ZOPEN(x)"); |
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1927 code[10] = c - NFA_ZOPEN + '0'; |
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1928 break; |
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1929 case NFA_ZCLOSE: |
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1930 case NFA_ZCLOSE1: |
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1931 case NFA_ZCLOSE2: |
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1932 case NFA_ZCLOSE3: |
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1933 case NFA_ZCLOSE4: |
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1934 case NFA_ZCLOSE5: |
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1935 case NFA_ZCLOSE6: |
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1936 case NFA_ZCLOSE7: |
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1937 case NFA_ZCLOSE8: |
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1938 case NFA_ZCLOSE9: |
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1939 STRCPY(code, "NFA_ZCLOSE(x)"); |
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1940 code[11] = c - NFA_ZCLOSE + '0'; |
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1941 break; |
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1942 #endif |
4444 | 1943 case NFA_EOL: STRCPY(code, "NFA_EOL "); break; |
1944 case NFA_BOL: STRCPY(code, "NFA_BOL "); break; | |
1945 case NFA_EOW: STRCPY(code, "NFA_EOW "); break; | |
1946 case NFA_BOW: STRCPY(code, "NFA_BOW "); break; | |
4671
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1947 case NFA_EOF: STRCPY(code, "NFA_EOF "); break; |
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1948 case NFA_BOF: STRCPY(code, "NFA_BOF "); break; |
4732
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1949 case NFA_LNUM: STRCPY(code, "NFA_LNUM "); break; |
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1950 case NFA_LNUM_GT: STRCPY(code, "NFA_LNUM_GT "); break; |
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1951 case NFA_LNUM_LT: STRCPY(code, "NFA_LNUM_LT "); break; |
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1952 case NFA_COL: STRCPY(code, "NFA_COL "); break; |
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1953 case NFA_COL_GT: STRCPY(code, "NFA_COL_GT "); break; |
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1954 case NFA_COL_LT: STRCPY(code, "NFA_COL_LT "); break; |
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1955 case NFA_VCOL: STRCPY(code, "NFA_VCOL "); break; |
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1956 case NFA_VCOL_GT: STRCPY(code, "NFA_VCOL_GT "); break; |
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1957 case NFA_VCOL_LT: STRCPY(code, "NFA_VCOL_LT "); break; |
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1958 case NFA_MARK: STRCPY(code, "NFA_MARK "); break; |
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1959 case NFA_MARK_GT: STRCPY(code, "NFA_MARK_GT "); break; |
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1960 case NFA_MARK_LT: STRCPY(code, "NFA_MARK_LT "); break; |
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1961 case NFA_CURSOR: STRCPY(code, "NFA_CURSOR "); break; |
4738
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|
1962 #ifdef FEAT_VISUAL |
4732
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1963 case NFA_VISUAL: STRCPY(code, "NFA_VISUAL "); break; |
4738
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1964 #endif |
4732
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1965 |
4444 | 1966 case NFA_STAR: STRCPY(code, "NFA_STAR "); break; |
4675
811a4c9b51d8
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|
1967 case NFA_STAR_NONGREEDY: STRCPY(code, "NFA_STAR_NONGREEDY "); break; |
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1968 case NFA_QUEST: STRCPY(code, "NFA_QUEST"); break; |
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1969 case NFA_QUEST_NONGREEDY: STRCPY(code, "NFA_QUEST_NON_GREEDY"); break; |
4444 | 1970 case NFA_NOT: STRCPY(code, "NFA_NOT "); break; |
1971 case NFA_SKIP_CHAR: STRCPY(code, "NFA_SKIP_CHAR"); break; | |
1972 case NFA_OR: STRCPY(code, "NFA_OR"); break; | |
1973 case NFA_END_NEG_RANGE: STRCPY(code, "NFA_END_NEG_RANGE"); break; | |
1974 case NFA_CLASS_ALNUM: STRCPY(code, "NFA_CLASS_ALNUM"); break; | |
1975 case NFA_CLASS_ALPHA: STRCPY(code, "NFA_CLASS_ALPHA"); break; | |
1976 case NFA_CLASS_BLANK: STRCPY(code, "NFA_CLASS_BLANK"); break; | |
1977 case NFA_CLASS_CNTRL: STRCPY(code, "NFA_CLASS_CNTRL"); break; | |
1978 case NFA_CLASS_DIGIT: STRCPY(code, "NFA_CLASS_DIGIT"); break; | |
1979 case NFA_CLASS_GRAPH: STRCPY(code, "NFA_CLASS_GRAPH"); break; | |
1980 case NFA_CLASS_LOWER: STRCPY(code, "NFA_CLASS_LOWER"); break; | |
1981 case NFA_CLASS_PRINT: STRCPY(code, "NFA_CLASS_PRINT"); break; | |
1982 case NFA_CLASS_PUNCT: STRCPY(code, "NFA_CLASS_PUNCT"); break; | |
1983 case NFA_CLASS_SPACE: STRCPY(code, "NFA_CLASS_SPACE"); break; | |
1984 case NFA_CLASS_UPPER: STRCPY(code, "NFA_CLASS_UPPER"); break; | |
1985 case NFA_CLASS_XDIGIT: STRCPY(code, "NFA_CLASS_XDIGIT"); break; | |
1986 case NFA_CLASS_TAB: STRCPY(code, "NFA_CLASS_TAB"); break; | |
1987 case NFA_CLASS_RETURN: STRCPY(code, "NFA_CLASS_RETURN"); break; | |
1988 case NFA_CLASS_BACKSPACE: STRCPY(code, "NFA_CLASS_BACKSPACE"); break; | |
1989 case NFA_CLASS_ESCAPE: STRCPY(code, "NFA_CLASS_ESCAPE"); break; | |
1990 | |
1991 case NFA_ANY: STRCPY(code, "NFA_ANY"); break; | |
1992 case NFA_IDENT: STRCPY(code, "NFA_IDENT"); break; | |
1993 case NFA_SIDENT:STRCPY(code, "NFA_SIDENT"); break; | |
1994 case NFA_KWORD: STRCPY(code, "NFA_KWORD"); break; | |
1995 case NFA_SKWORD:STRCPY(code, "NFA_SKWORD"); break; | |
1996 case NFA_FNAME: STRCPY(code, "NFA_FNAME"); break; | |
1997 case NFA_SFNAME:STRCPY(code, "NFA_SFNAME"); break; | |
1998 case NFA_PRINT: STRCPY(code, "NFA_PRINT"); break; | |
1999 case NFA_SPRINT:STRCPY(code, "NFA_SPRINT"); break; | |
2000 case NFA_WHITE: STRCPY(code, "NFA_WHITE"); break; | |
2001 case NFA_NWHITE:STRCPY(code, "NFA_NWHITE"); break; | |
2002 case NFA_DIGIT: STRCPY(code, "NFA_DIGIT"); break; | |
2003 case NFA_NDIGIT:STRCPY(code, "NFA_NDIGIT"); break; | |
2004 case NFA_HEX: STRCPY(code, "NFA_HEX"); break; | |
2005 case NFA_NHEX: STRCPY(code, "NFA_NHEX"); break; | |
2006 case NFA_OCTAL: STRCPY(code, "NFA_OCTAL"); break; | |
2007 case NFA_NOCTAL:STRCPY(code, "NFA_NOCTAL"); break; | |
2008 case NFA_WORD: STRCPY(code, "NFA_WORD"); break; | |
2009 case NFA_NWORD: STRCPY(code, "NFA_NWORD"); break; | |
2010 case NFA_HEAD: STRCPY(code, "NFA_HEAD"); break; | |
2011 case NFA_NHEAD: STRCPY(code, "NFA_NHEAD"); break; | |
2012 case NFA_ALPHA: STRCPY(code, "NFA_ALPHA"); break; | |
2013 case NFA_NALPHA:STRCPY(code, "NFA_NALPHA"); break; | |
2014 case NFA_LOWER: STRCPY(code, "NFA_LOWER"); break; | |
2015 case NFA_NLOWER:STRCPY(code, "NFA_NLOWER"); break; | |
2016 case NFA_UPPER: STRCPY(code, "NFA_UPPER"); break; | |
2017 case NFA_NUPPER:STRCPY(code, "NFA_NUPPER"); break; | |
2018 | |
2019 default: | |
2020 STRCPY(code, "CHAR(x)"); | |
2021 code[5] = c; | |
2022 } | |
2023 | |
2024 if (addnl == TRUE) | |
2025 STRCAT(code, " + NEWLINE "); | |
2026 | |
2027 } | |
2028 | |
2029 #ifdef ENABLE_LOG | |
2030 static FILE *log_fd; | |
2031 | |
2032 /* | |
2033 * Print the postfix notation of the current regexp. | |
2034 */ | |
2035 static void | |
2036 nfa_postfix_dump(expr, retval) | |
2037 char_u *expr; | |
2038 int retval; | |
2039 { | |
2040 int *p; | |
2041 FILE *f; | |
2042 | |
4531
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2043 f = fopen(NFA_REGEXP_DUMP_LOG, "a"); |
4444 | 2044 if (f != NULL) |
2045 { | |
2046 fprintf(f, "\n-------------------------\n"); | |
2047 if (retval == FAIL) | |
2048 fprintf(f, ">>> NFA engine failed ... \n"); | |
2049 else if (retval == OK) | |
2050 fprintf(f, ">>> NFA engine succeeded !\n"); | |
2051 fprintf(f, "Regexp: \"%s\"\nPostfix notation (char): \"", expr); | |
4464 | 2052 for (p = post_start; *p && p < post_end; p++) |
4444 | 2053 { |
2054 nfa_set_code(*p); | |
2055 fprintf(f, "%s, ", code); | |
2056 } | |
2057 fprintf(f, "\"\nPostfix notation (int): "); | |
4464 | 2058 for (p = post_start; *p && p < post_end; p++) |
4444 | 2059 fprintf(f, "%d ", *p); |
2060 fprintf(f, "\n\n"); | |
2061 fclose(f); | |
2062 } | |
2063 } | |
2064 | |
2065 /* | |
2066 * Print the NFA starting with a root node "state". | |
2067 */ | |
2068 static void | |
4533
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2069 nfa_print_state(debugf, state) |
4444 | 2070 FILE *debugf; |
2071 nfa_state_T *state; | |
2072 { | |
4533
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2073 garray_T indent; |
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|
2074 |
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2075 ga_init2(&indent, 1, 64); |
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2076 ga_append(&indent, '\0'); |
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|
2077 nfa_print_state2(debugf, state, &indent); |
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2078 ga_clear(&indent); |
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|
2079 } |
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2080 |
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|
2081 static void |
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2082 nfa_print_state2(debugf, state, indent) |
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2083 FILE *debugf; |
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2084 nfa_state_T *state; |
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2085 garray_T *indent; |
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2086 { |
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2087 char_u *p; |
4444 | 2088 |
2089 if (state == NULL) | |
2090 return; | |
2091 | |
2092 fprintf(debugf, "(%2d)", abs(state->id)); | |
4533
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2093 |
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2094 /* Output indent */ |
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2095 p = (char_u *)indent->ga_data; |
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2096 if (indent->ga_len >= 3) |
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2097 { |
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2098 int last = indent->ga_len - 3; |
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2099 char_u save[2]; |
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2100 |
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2101 STRNCPY(save, &p[last], 2); |
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2102 STRNCPY(&p[last], "+-", 2); |
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2103 fprintf(debugf, " %s", p); |
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2104 STRNCPY(&p[last], save, 2); |
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2105 } |
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2106 else |
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2107 fprintf(debugf, " %s", p); |
4444 | 2108 |
2109 nfa_set_code(state->c); | |
4533
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2110 fprintf(debugf, "%s%s (%d) (id=%d)\n", |
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|
2111 state->negated ? "NOT " : "", code, state->c, abs(state->id)); |
4444 | 2112 if (state->id < 0) |
2113 return; | |
2114 | |
2115 state->id = abs(state->id) * -1; | |
4533
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|
2116 |
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2117 /* grow indent for state->out */ |
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|
2118 indent->ga_len -= 1; |
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|
2119 if (state->out1) |
4537
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|
2120 ga_concat(indent, (char_u *)"| "); |
4533
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|
2121 else |
4537
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|
2122 ga_concat(indent, (char_u *)" "); |
4533
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2123 ga_append(indent, '\0'); |
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|
2124 |
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2125 nfa_print_state2(debugf, state->out, indent); |
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2126 |
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2127 /* replace last part of indent for state->out1 */ |
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|
2128 indent->ga_len -= 3; |
4537
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|
2129 ga_concat(indent, (char_u *)" "); |
4533
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|
2130 ga_append(indent, '\0'); |
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2131 |
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2132 nfa_print_state2(debugf, state->out1, indent); |
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2133 |
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2134 /* shrink indent */ |
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2135 indent->ga_len -= 3; |
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2136 ga_append(indent, '\0'); |
4444 | 2137 } |
2138 | |
2139 /* | |
2140 * Print the NFA state machine. | |
2141 */ | |
2142 static void | |
2143 nfa_dump(prog) | |
2144 nfa_regprog_T *prog; | |
2145 { | |
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2146 FILE *debugf = fopen(NFA_REGEXP_DUMP_LOG, "a"); |
4444 | 2147 |
2148 if (debugf != NULL) | |
2149 { | |
4533
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2150 nfa_print_state(debugf, prog->start); |
4444 | 2151 fclose(debugf); |
2152 } | |
2153 } | |
2154 #endif /* ENABLE_LOG */ | |
2155 #endif /* DEBUG */ | |
2156 | |
2157 /* | |
2158 * Parse r.e. @expr and convert it into postfix form. | |
2159 * Return the postfix string on success, NULL otherwise. | |
2160 */ | |
2161 static int * | |
2162 re2post() | |
2163 { | |
2164 if (nfa_reg(REG_NOPAREN) == FAIL) | |
2165 return NULL; | |
2166 EMIT(NFA_MOPEN); | |
2167 return post_start; | |
2168 } | |
2169 | |
2170 /* NB. Some of the code below is inspired by Russ's. */ | |
2171 | |
2172 /* | |
2173 * Represents an NFA state plus zero or one or two arrows exiting. | |
2174 * if c == MATCH, no arrows out; matching state. | |
2175 * If c == SPLIT, unlabeled arrows to out and out1 (if != NULL). | |
2176 * If c < 256, labeled arrow with character c to out. | |
2177 */ | |
2178 | |
2179 static nfa_state_T *state_ptr; /* points to nfa_prog->state */ | |
2180 | |
2181 /* | |
2182 * Allocate and initialize nfa_state_T. | |
2183 */ | |
2184 static nfa_state_T * | |
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2185 alloc_state(c, out, out1) |
4444 | 2186 int c; |
2187 nfa_state_T *out; | |
2188 nfa_state_T *out1; | |
2189 { | |
2190 nfa_state_T *s; | |
2191 | |
2192 if (istate >= nstate) | |
2193 return NULL; | |
2194 | |
2195 s = &state_ptr[istate++]; | |
2196 | |
2197 s->c = c; | |
2198 s->out = out; | |
2199 s->out1 = out1; | |
2200 | |
2201 s->id = istate; | |
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2202 s->lastlist[0] = 0; |
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2203 s->lastlist[1] = 0; |
4444 | 2204 s->negated = FALSE; |
2205 | |
2206 return s; | |
2207 } | |
2208 | |
2209 /* | |
2210 * A partially built NFA without the matching state filled in. | |
2211 * Frag_T.start points at the start state. | |
2212 * Frag_T.out is a list of places that need to be set to the | |
2213 * next state for this fragment. | |
2214 */ | |
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2215 |
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2216 /* Since the out pointers in the list are always |
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2217 * uninitialized, we use the pointers themselves |
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2218 * as storage for the Ptrlists. */ |
4444 | 2219 typedef union Ptrlist Ptrlist; |
4555
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2220 union Ptrlist |
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2221 { |
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2222 Ptrlist *next; |
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2223 nfa_state_T *s; |
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2224 }; |
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2225 |
4444 | 2226 struct Frag |
2227 { | |
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2228 nfa_state_T *start; |
4444 | 2229 Ptrlist *out; |
2230 }; | |
2231 typedef struct Frag Frag_T; | |
2232 | |
2233 static Frag_T frag __ARGS((nfa_state_T *start, Ptrlist *out)); | |
2234 static Ptrlist *list1 __ARGS((nfa_state_T **outp)); | |
2235 static void patch __ARGS((Ptrlist *l, nfa_state_T *s)); | |
2236 static Ptrlist *append __ARGS((Ptrlist *l1, Ptrlist *l2)); | |
2237 static void st_push __ARGS((Frag_T s, Frag_T **p, Frag_T *stack_end)); | |
2238 static Frag_T st_pop __ARGS((Frag_T **p, Frag_T *stack)); | |
2239 | |
2240 /* | |
4456 | 2241 * Initialize a Frag_T struct and return it. |
4444 | 2242 */ |
2243 static Frag_T | |
2244 frag(start, out) | |
2245 nfa_state_T *start; | |
2246 Ptrlist *out; | |
2247 { | |
4456 | 2248 Frag_T n; |
2249 | |
2250 n.start = start; | |
2251 n.out = out; | |
4444 | 2252 return n; |
2253 } | |
2254 | |
2255 /* | |
2256 * Create singleton list containing just outp. | |
2257 */ | |
2258 static Ptrlist * | |
2259 list1(outp) | |
2260 nfa_state_T **outp; | |
2261 { | |
2262 Ptrlist *l; | |
2263 | |
2264 l = (Ptrlist *)outp; | |
2265 l->next = NULL; | |
2266 return l; | |
2267 } | |
2268 | |
2269 /* | |
2270 * Patch the list of states at out to point to start. | |
2271 */ | |
2272 static void | |
2273 patch(l, s) | |
2274 Ptrlist *l; | |
2275 nfa_state_T *s; | |
2276 { | |
2277 Ptrlist *next; | |
2278 | |
2279 for (; l; l = next) | |
2280 { | |
2281 next = l->next; | |
2282 l->s = s; | |
2283 } | |
2284 } | |
2285 | |
2286 | |
2287 /* | |
2288 * Join the two lists l1 and l2, returning the combination. | |
2289 */ | |
2290 static Ptrlist * | |
2291 append(l1, l2) | |
2292 Ptrlist *l1; | |
2293 Ptrlist *l2; | |
2294 { | |
2295 Ptrlist *oldl1; | |
2296 | |
2297 oldl1 = l1; | |
2298 while (l1->next) | |
2299 l1 = l1->next; | |
2300 l1->next = l2; | |
2301 return oldl1; | |
2302 } | |
2303 | |
2304 /* | |
2305 * Stack used for transforming postfix form into NFA. | |
2306 */ | |
2307 static Frag_T empty; | |
2308 | |
2309 static void | |
2310 st_error(postfix, end, p) | |
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2311 int *postfix UNUSED; |
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2312 int *end UNUSED; |
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2313 int *p UNUSED; |
4444 | 2314 { |
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2315 #ifdef NFA_REGEXP_ERROR_LOG |
4444 | 2316 FILE *df; |
2317 int *p2; | |
2318 | |
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2319 df = fopen(NFA_REGEXP_ERROR_LOG, "a"); |
4444 | 2320 if (df) |
2321 { | |
2322 fprintf(df, "Error popping the stack!\n"); | |
2323 #ifdef DEBUG | |
2324 fprintf(df, "Current regexp is \"%s\"\n", nfa_regengine.expr); | |
2325 #endif | |
2326 fprintf(df, "Postfix form is: "); | |
2327 #ifdef DEBUG | |
2328 for (p2 = postfix; p2 < end; p2++) | |
2329 { | |
2330 nfa_set_code(*p2); | |
2331 fprintf(df, "%s, ", code); | |
2332 } | |
2333 nfa_set_code(*p); | |
2334 fprintf(df, "\nCurrent position is: "); | |
2335 for (p2 = postfix; p2 <= p; p2 ++) | |
2336 { | |
2337 nfa_set_code(*p2); | |
2338 fprintf(df, "%s, ", code); | |
2339 } | |
2340 #else | |
2341 for (p2 = postfix; p2 < end; p2++) | |
2342 { | |
2343 fprintf(df, "%d, ", *p2); | |
2344 } | |
2345 fprintf(df, "\nCurrent position is: "); | |
2346 for (p2 = postfix; p2 <= p; p2 ++) | |
2347 { | |
2348 fprintf(df, "%d, ", *p2); | |
2349 } | |
2350 #endif | |
2351 fprintf(df, "\n--------------------------\n"); | |
2352 fclose(df); | |
2353 } | |
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2354 #endif |
4444 | 2355 EMSG(_("E874: (NFA) Could not pop the stack !")); |
2356 } | |
2357 | |
2358 /* | |
2359 * Push an item onto the stack. | |
2360 */ | |
2361 static void | |
2362 st_push(s, p, stack_end) | |
2363 Frag_T s; | |
2364 Frag_T **p; | |
2365 Frag_T *stack_end; | |
2366 { | |
2367 Frag_T *stackp = *p; | |
2368 | |
2369 if (stackp >= stack_end) | |
2370 return; | |
2371 *stackp = s; | |
2372 *p = *p + 1; | |
2373 } | |
2374 | |
2375 /* | |
2376 * Pop an item from the stack. | |
2377 */ | |
2378 static Frag_T | |
2379 st_pop(p, stack) | |
2380 Frag_T **p; | |
2381 Frag_T *stack; | |
2382 { | |
2383 Frag_T *stackp; | |
2384 | |
2385 *p = *p - 1; | |
2386 stackp = *p; | |
2387 if (stackp < stack) | |
2388 return empty; | |
2389 return **p; | |
2390 } | |
2391 | |
2392 /* | |
2393 * Convert a postfix form into its equivalent NFA. | |
2394 * Return the NFA start state on success, NULL otherwise. | |
2395 */ | |
2396 static nfa_state_T * | |
2397 post2nfa(postfix, end, nfa_calc_size) | |
2398 int *postfix; | |
2399 int *end; | |
2400 int nfa_calc_size; | |
2401 { | |
2402 int *p; | |
2403 int mopen; | |
2404 int mclose; | |
2405 Frag_T *stack = NULL; | |
2406 Frag_T *stackp = NULL; | |
2407 Frag_T *stack_end = NULL; | |
2408 Frag_T e1; | |
2409 Frag_T e2; | |
2410 Frag_T e; | |
2411 nfa_state_T *s; | |
2412 nfa_state_T *s1; | |
2413 nfa_state_T *matchstate; | |
4484 | 2414 nfa_state_T *ret = NULL; |
4444 | 2415 |
2416 if (postfix == NULL) | |
2417 return NULL; | |
2418 | |
4456 | 2419 #define PUSH(s) st_push((s), &stackp, stack_end) |
4444 | 2420 #define POP() st_pop(&stackp, stack); \ |
2421 if (stackp < stack) \ | |
2422 { \ | |
2423 st_error(postfix, end, p); \ | |
2424 return NULL; \ | |
2425 } | |
2426 | |
2427 if (nfa_calc_size == FALSE) | |
2428 { | |
2429 /* Allocate space for the stack. Max states on the stack : nstate */ | |
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2430 stack = (Frag_T *)lalloc((nstate + 1) * sizeof(Frag_T), TRUE); |
4444 | 2431 stackp = stack; |
4462 | 2432 stack_end = stack + (nstate + 1); |
4444 | 2433 } |
2434 | |
2435 for (p = postfix; p < end; ++p) | |
2436 { | |
2437 switch (*p) | |
2438 { | |
2439 case NFA_CONCAT: | |
2440 /* Catenation. | |
2441 * Pay attention: this operator does not exist | |
2442 * in the r.e. itself (it is implicit, really). | |
2443 * It is added when r.e. is translated to postfix | |
2444 * form in re2post(). | |
2445 * | |
2446 * No new state added here. */ | |
2447 if (nfa_calc_size == TRUE) | |
2448 { | |
4458 | 2449 /* nstate += 0; */ |
4444 | 2450 break; |
2451 } | |
2452 e2 = POP(); | |
2453 e1 = POP(); | |
2454 patch(e1.out, e2.start); | |
2455 PUSH(frag(e1.start, e2.out)); | |
2456 break; | |
2457 | |
2458 case NFA_NOT: | |
2459 /* Negation of a character */ | |
2460 if (nfa_calc_size == TRUE) | |
2461 { | |
4458 | 2462 /* nstate += 0; */ |
4444 | 2463 break; |
2464 } | |
2465 e1 = POP(); | |
2466 e1.start->negated = TRUE; | |
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2467 #ifdef FEAT_MBYTE |
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2468 if (e1.start->c == NFA_COMPOSING) |
4444 | 2469 e1.start->out1->negated = TRUE; |
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2470 #endif |
4444 | 2471 PUSH(e1); |
2472 break; | |
2473 | |
2474 case NFA_OR: | |
2475 /* Alternation */ | |
2476 if (nfa_calc_size == TRUE) | |
2477 { | |
4458 | 2478 nstate++; |
4444 | 2479 break; |
2480 } | |
2481 e2 = POP(); | |
2482 e1 = POP(); | |
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2483 s = alloc_state(NFA_SPLIT, e1.start, e2.start); |
4444 | 2484 if (s == NULL) |
4484 | 2485 goto theend; |
4444 | 2486 PUSH(frag(s, append(e1.out, e2.out))); |
2487 break; | |
2488 | |
2489 case NFA_STAR: | |
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2490 /* Zero or more, prefer more */ |
4444 | 2491 if (nfa_calc_size == TRUE) |
2492 { | |
4458 | 2493 nstate++; |
4444 | 2494 break; |
2495 } | |
2496 e = POP(); | |
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2497 s = alloc_state(NFA_SPLIT, e.start, NULL); |
4444 | 2498 if (s == NULL) |
4484 | 2499 goto theend; |
4444 | 2500 patch(e.out, s); |
2501 PUSH(frag(s, list1(&s->out1))); | |
2502 break; | |
2503 | |
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2504 case NFA_STAR_NONGREEDY: |
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2505 /* Zero or more, prefer zero */ |
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2506 if (nfa_calc_size == TRUE) |
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2507 { |
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2508 nstate++; |
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2509 break; |
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2510 } |
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2511 e = POP(); |
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2512 s = alloc_state(NFA_SPLIT, NULL, e.start); |
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2513 if (s == NULL) |
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2514 goto theend; |
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2515 patch(e.out, s); |
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2516 PUSH(frag(s, list1(&s->out))); |
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2517 break; |
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2518 |
4444 | 2519 case NFA_QUEST: |
2520 /* one or zero atoms=> greedy match */ | |
2521 if (nfa_calc_size == TRUE) | |
2522 { | |
4458 | 2523 nstate++; |
4444 | 2524 break; |
2525 } | |
2526 e = POP(); | |
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2527 s = alloc_state(NFA_SPLIT, e.start, NULL); |
4444 | 2528 if (s == NULL) |
4484 | 2529 goto theend; |
4444 | 2530 PUSH(frag(s, append(e.out, list1(&s->out1)))); |
2531 break; | |
2532 | |
2533 case NFA_QUEST_NONGREEDY: | |
2534 /* zero or one atoms => non-greedy match */ | |
2535 if (nfa_calc_size == TRUE) | |
2536 { | |
4458 | 2537 nstate++; |
4444 | 2538 break; |
2539 } | |
2540 e = POP(); | |
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2541 s = alloc_state(NFA_SPLIT, NULL, e.start); |
4444 | 2542 if (s == NULL) |
4484 | 2543 goto theend; |
4444 | 2544 PUSH(frag(s, append(e.out, list1(&s->out)))); |
2545 break; | |
2546 | |
2547 case NFA_SKIP_CHAR: | |
2548 /* Symbol of 0-length, Used in a repetition | |
2549 * with max/min count of 0 */ | |
2550 if (nfa_calc_size == TRUE) | |
2551 { | |
4458 | 2552 nstate++; |
4444 | 2553 break; |
2554 } | |
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ed4e689bbea1
updated for version 7.3.1095
Bram Moolenaar <bram@vim.org>
parents:
4694
diff
changeset
|
2555 s = alloc_state(NFA_SKIP_CHAR, NULL, NULL); |
4444 | 2556 if (s == NULL) |
4484 | 2557 goto theend; |
4444 | 2558 PUSH(frag(s, list1(&s->out))); |
2559 break; | |
2560 | |
2561 case NFA_PREV_ATOM_NO_WIDTH: | |
4661
0dce3d812e7a
updated for version 7.3.1078
Bram Moolenaar <bram@vim.org>
parents:
4657
diff
changeset
|
2562 case NFA_PREV_ATOM_NO_WIDTH_NEG: |
4682
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
2563 case NFA_PREV_ATOM_JUST_BEFORE: |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
2564 case NFA_PREV_ATOM_JUST_BEFORE_NEG: |
4657
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
2565 /* The \@= operator: match the preceding atom with zero width. |
4661
0dce3d812e7a
updated for version 7.3.1078
Bram Moolenaar <bram@vim.org>
parents:
4657
diff
changeset
|
2566 * The \@! operator: no match for the preceding atom. |
4682
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
2567 * The \@<= operator: match for the preceding atom. |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
2568 * The \@<! operator: no match for the preceding atom. |
4444 | 2569 * Surrounds the preceding atom with START_INVISIBLE and |
4657
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
2570 * END_INVISIBLE, similarly to MOPEN. */ |
4444 | 2571 |
2572 if (nfa_calc_size == TRUE) | |
2573 { | |
2574 nstate += 2; | |
2575 break; | |
2576 } | |
2577 e = POP(); | |
4696
ed4e689bbea1
updated for version 7.3.1095
Bram Moolenaar <bram@vim.org>
parents:
4694
diff
changeset
|
2578 s1 = alloc_state(NFA_END_INVISIBLE, NULL, NULL); |
4444 | 2579 if (s1 == NULL) |
4484 | 2580 goto theend; |
4444 | 2581 patch(e.out, s1); |
2582 | |
4696
ed4e689bbea1
updated for version 7.3.1095
Bram Moolenaar <bram@vim.org>
parents:
4694
diff
changeset
|
2583 s = alloc_state(NFA_START_INVISIBLE, e.start, s1); |
4444 | 2584 if (s == NULL) |
4484 | 2585 goto theend; |
4682
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
2586 if (*p == NFA_PREV_ATOM_NO_WIDTH_NEG |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
2587 || *p == NFA_PREV_ATOM_JUST_BEFORE_NEG) |
4661
0dce3d812e7a
updated for version 7.3.1078
Bram Moolenaar <bram@vim.org>
parents:
4657
diff
changeset
|
2588 { |
0dce3d812e7a
updated for version 7.3.1078
Bram Moolenaar <bram@vim.org>
parents:
4657
diff
changeset
|
2589 s->negated = TRUE; |
0dce3d812e7a
updated for version 7.3.1078
Bram Moolenaar <bram@vim.org>
parents:
4657
diff
changeset
|
2590 s1->negated = TRUE; |
0dce3d812e7a
updated for version 7.3.1078
Bram Moolenaar <bram@vim.org>
parents:
4657
diff
changeset
|
2591 } |
4682
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
2592 if (*p == NFA_PREV_ATOM_JUST_BEFORE |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
2593 || *p == NFA_PREV_ATOM_JUST_BEFORE_NEG) |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
2594 { |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
2595 s->val = *++p; /* get the count */ |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
2596 ++s->c; /* NFA_START_INVISIBLE -> NFA_START_INVISIBLE_BEFORE */ |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
2597 } |
4661
0dce3d812e7a
updated for version 7.3.1078
Bram Moolenaar <bram@vim.org>
parents:
4657
diff
changeset
|
2598 |
4444 | 2599 PUSH(frag(s, list1(&s1->out))); |
2600 break; | |
2601 | |
4531
1be43c095aff
updated for version 7.3.1013
Bram Moolenaar <bram@vim.org>
parents:
4529
diff
changeset
|
2602 #ifdef FEAT_MBYTE |
4527
55bcaa1d2749
updated for version 7.3.1011
Bram Moolenaar <bram@vim.org>
parents:
4525
diff
changeset
|
2603 case NFA_COMPOSING: /* char with composing char */ |
55bcaa1d2749
updated for version 7.3.1011
Bram Moolenaar <bram@vim.org>
parents:
4525
diff
changeset
|
2604 #if 0 |
55bcaa1d2749
updated for version 7.3.1011
Bram Moolenaar <bram@vim.org>
parents:
4525
diff
changeset
|
2605 /* TODO */ |
55bcaa1d2749
updated for version 7.3.1011
Bram Moolenaar <bram@vim.org>
parents:
4525
diff
changeset
|
2606 if (regflags & RF_ICOMBINE) |
55bcaa1d2749
updated for version 7.3.1011
Bram Moolenaar <bram@vim.org>
parents:
4525
diff
changeset
|
2607 { |
4529
432a6b8c7d93
updated for version 7.3.1012
Bram Moolenaar <bram@vim.org>
parents:
4527
diff
changeset
|
2608 /* use the base character only */ |
4527
55bcaa1d2749
updated for version 7.3.1011
Bram Moolenaar <bram@vim.org>
parents:
4525
diff
changeset
|
2609 } |
55bcaa1d2749
updated for version 7.3.1011
Bram Moolenaar <bram@vim.org>
parents:
4525
diff
changeset
|
2610 #endif |
55bcaa1d2749
updated for version 7.3.1011
Bram Moolenaar <bram@vim.org>
parents:
4525
diff
changeset
|
2611 /* FALLTHROUGH */ |
4531
1be43c095aff
updated for version 7.3.1013
Bram Moolenaar <bram@vim.org>
parents:
4529
diff
changeset
|
2612 #endif |
4527
55bcaa1d2749
updated for version 7.3.1011
Bram Moolenaar <bram@vim.org>
parents:
4525
diff
changeset
|
2613 |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2614 case NFA_MOPEN: /* \( \) Submatch */ |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2615 case NFA_MOPEN1: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2616 case NFA_MOPEN2: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2617 case NFA_MOPEN3: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2618 case NFA_MOPEN4: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2619 case NFA_MOPEN5: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2620 case NFA_MOPEN6: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2621 case NFA_MOPEN7: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2622 case NFA_MOPEN8: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2623 case NFA_MOPEN9: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2624 #ifdef FEAT_SYN_HL |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2625 case NFA_ZOPEN: /* \z( \) Submatch */ |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2626 case NFA_ZOPEN1: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2627 case NFA_ZOPEN2: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2628 case NFA_ZOPEN3: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2629 case NFA_ZOPEN4: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2630 case NFA_ZOPEN5: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2631 case NFA_ZOPEN6: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2632 case NFA_ZOPEN7: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2633 case NFA_ZOPEN8: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2634 case NFA_ZOPEN9: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2635 #endif |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2636 case NFA_NOPEN: /* \%( \) "Invisible Submatch" */ |
4444 | 2637 if (nfa_calc_size == TRUE) |
2638 { | |
2639 nstate += 2; | |
2640 break; | |
2641 } | |
2642 | |
2643 mopen = *p; | |
2644 switch (*p) | |
2645 { | |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2646 case NFA_NOPEN: mclose = NFA_NCLOSE; break; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2647 #ifdef FEAT_SYN_HL |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2648 case NFA_ZOPEN: mclose = NFA_ZCLOSE; break; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2649 case NFA_ZOPEN1: mclose = NFA_ZCLOSE1; break; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2650 case NFA_ZOPEN2: mclose = NFA_ZCLOSE2; break; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2651 case NFA_ZOPEN3: mclose = NFA_ZCLOSE3; break; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2652 case NFA_ZOPEN4: mclose = NFA_ZCLOSE4; break; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2653 case NFA_ZOPEN5: mclose = NFA_ZCLOSE5; break; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2654 case NFA_ZOPEN6: mclose = NFA_ZCLOSE6; break; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2655 case NFA_ZOPEN7: mclose = NFA_ZCLOSE7; break; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2656 case NFA_ZOPEN8: mclose = NFA_ZCLOSE8; break; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2657 case NFA_ZOPEN9: mclose = NFA_ZCLOSE9; break; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2658 #endif |
4531
1be43c095aff
updated for version 7.3.1013
Bram Moolenaar <bram@vim.org>
parents:
4529
diff
changeset
|
2659 #ifdef FEAT_MBYTE |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2660 case NFA_COMPOSING: mclose = NFA_END_COMPOSING; break; |
4531
1be43c095aff
updated for version 7.3.1013
Bram Moolenaar <bram@vim.org>
parents:
4529
diff
changeset
|
2661 #endif |
4444 | 2662 default: |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2663 /* NFA_MOPEN, NFA_MOPEN1 .. NFA_MOPEN9 */ |
4444 | 2664 mclose = *p + NSUBEXP; |
2665 break; | |
2666 } | |
2667 | |
2668 /* Allow "NFA_MOPEN" as a valid postfix representation for | |
2669 * the empty regexp "". In this case, the NFA will be | |
2670 * NFA_MOPEN -> NFA_MCLOSE. Note that this also allows | |
2671 * empty groups of parenthesis, and empty mbyte chars */ | |
2672 if (stackp == stack) | |
2673 { | |
4696
ed4e689bbea1
updated for version 7.3.1095
Bram Moolenaar <bram@vim.org>
parents:
4694
diff
changeset
|
2674 s = alloc_state(mopen, NULL, NULL); |
4444 | 2675 if (s == NULL) |
4484 | 2676 goto theend; |
4696
ed4e689bbea1
updated for version 7.3.1095
Bram Moolenaar <bram@vim.org>
parents:
4694
diff
changeset
|
2677 s1 = alloc_state(mclose, NULL, NULL); |
4444 | 2678 if (s1 == NULL) |
4484 | 2679 goto theend; |
4444 | 2680 patch(list1(&s->out), s1); |
2681 PUSH(frag(s, list1(&s1->out))); | |
2682 break; | |
2683 } | |
2684 | |
2685 /* At least one node was emitted before NFA_MOPEN, so | |
2686 * at least one node will be between NFA_MOPEN and NFA_MCLOSE */ | |
2687 e = POP(); | |
4696
ed4e689bbea1
updated for version 7.3.1095
Bram Moolenaar <bram@vim.org>
parents:
4694
diff
changeset
|
2688 s = alloc_state(mopen, e.start, NULL); /* `(' */ |
4444 | 2689 if (s == NULL) |
4484 | 2690 goto theend; |
4444 | 2691 |
4696
ed4e689bbea1
updated for version 7.3.1095
Bram Moolenaar <bram@vim.org>
parents:
4694
diff
changeset
|
2692 s1 = alloc_state(mclose, NULL, NULL); /* `)' */ |
4444 | 2693 if (s1 == NULL) |
4484 | 2694 goto theend; |
4444 | 2695 patch(e.out, s1); |
2696 | |
4531
1be43c095aff
updated for version 7.3.1013
Bram Moolenaar <bram@vim.org>
parents:
4529
diff
changeset
|
2697 #ifdef FEAT_MBYTE |
4527
55bcaa1d2749
updated for version 7.3.1011
Bram Moolenaar <bram@vim.org>
parents:
4525
diff
changeset
|
2698 if (mopen == NFA_COMPOSING) |
55bcaa1d2749
updated for version 7.3.1011
Bram Moolenaar <bram@vim.org>
parents:
4525
diff
changeset
|
2699 /* COMPOSING->out1 = END_COMPOSING */ |
4444 | 2700 patch(list1(&s->out1), s1); |
4531
1be43c095aff
updated for version 7.3.1013
Bram Moolenaar <bram@vim.org>
parents:
4529
diff
changeset
|
2701 #endif |
4444 | 2702 |
2703 PUSH(frag(s, list1(&s1->out))); | |
2704 break; | |
2705 | |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2706 case NFA_BACKREF1: |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2707 case NFA_BACKREF2: |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2708 case NFA_BACKREF3: |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2709 case NFA_BACKREF4: |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2710 case NFA_BACKREF5: |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2711 case NFA_BACKREF6: |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2712 case NFA_BACKREF7: |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2713 case NFA_BACKREF8: |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2714 case NFA_BACKREF9: |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2715 #ifdef FEAT_SYN_HL |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2716 case NFA_ZREF1: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2717 case NFA_ZREF2: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2718 case NFA_ZREF3: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2719 case NFA_ZREF4: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2720 case NFA_ZREF5: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2721 case NFA_ZREF6: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2722 case NFA_ZREF7: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2723 case NFA_ZREF8: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2724 case NFA_ZREF9: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2725 #endif |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2726 if (nfa_calc_size == TRUE) |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2727 { |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2728 nstate += 2; |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2729 break; |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2730 } |
4696
ed4e689bbea1
updated for version 7.3.1095
Bram Moolenaar <bram@vim.org>
parents:
4694
diff
changeset
|
2731 s = alloc_state(*p, NULL, NULL); |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2732 if (s == NULL) |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2733 goto theend; |
4696
ed4e689bbea1
updated for version 7.3.1095
Bram Moolenaar <bram@vim.org>
parents:
4694
diff
changeset
|
2734 s1 = alloc_state(NFA_SKIP, NULL, NULL); |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2735 if (s1 == NULL) |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2736 goto theend; |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2737 patch(list1(&s->out), s1); |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2738 PUSH(frag(s, list1(&s1->out))); |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2739 break; |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2740 |
4583
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
2741 case NFA_LNUM: |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
2742 case NFA_LNUM_GT: |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
2743 case NFA_LNUM_LT: |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
2744 case NFA_VCOL: |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
2745 case NFA_VCOL_GT: |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
2746 case NFA_VCOL_LT: |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
2747 case NFA_COL: |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
2748 case NFA_COL_GT: |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
2749 case NFA_COL_LT: |
4732
0798b096bab3
updated for version 7.3.1113
Bram Moolenaar <bram@vim.org>
parents:
4730
diff
changeset
|
2750 case NFA_MARK: |
0798b096bab3
updated for version 7.3.1113
Bram Moolenaar <bram@vim.org>
parents:
4730
diff
changeset
|
2751 case NFA_MARK_GT: |
0798b096bab3
updated for version 7.3.1113
Bram Moolenaar <bram@vim.org>
parents:
4730
diff
changeset
|
2752 case NFA_MARK_LT: |
4583
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
2753 if (nfa_calc_size == TRUE) |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
2754 { |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
2755 nstate += 1; |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
2756 break; |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
2757 } |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
2758 e1 = POP(); |
4696
ed4e689bbea1
updated for version 7.3.1095
Bram Moolenaar <bram@vim.org>
parents:
4694
diff
changeset
|
2759 s = alloc_state(*p, NULL, NULL); |
4583
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
2760 if (s == NULL) |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
2761 goto theend; |
4732
0798b096bab3
updated for version 7.3.1113
Bram Moolenaar <bram@vim.org>
parents:
4730
diff
changeset
|
2762 s->val = e1.start->c; /* lnum, col or mark name */ |
4583
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
2763 PUSH(frag(s, list1(&s->out))); |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
2764 break; |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
2765 |
4444 | 2766 case NFA_ZSTART: |
2767 case NFA_ZEND: | |
2768 default: | |
2769 /* Operands */ | |
2770 if (nfa_calc_size == TRUE) | |
2771 { | |
4458 | 2772 nstate++; |
4444 | 2773 break; |
2774 } | |
4696
ed4e689bbea1
updated for version 7.3.1095
Bram Moolenaar <bram@vim.org>
parents:
4694
diff
changeset
|
2775 s = alloc_state(*p, NULL, NULL); |
4444 | 2776 if (s == NULL) |
4484 | 2777 goto theend; |
4444 | 2778 PUSH(frag(s, list1(&s->out))); |
2779 break; | |
2780 | |
2781 } /* switch(*p) */ | |
2782 | |
2783 } /* for(p = postfix; *p; ++p) */ | |
2784 | |
2785 if (nfa_calc_size == TRUE) | |
2786 { | |
4458 | 2787 nstate++; |
4484 | 2788 goto theend; /* Return value when counting size is ignored anyway */ |
4444 | 2789 } |
2790 | |
2791 e = POP(); | |
2792 if (stackp != stack) | |
2793 EMSG_RET_NULL(_("E875: (NFA regexp) (While converting from postfix to NFA), too many states left on stack")); | |
2794 | |
2795 if (istate >= nstate) | |
2796 EMSG_RET_NULL(_("E876: (NFA regexp) Not enough space to store the whole NFA ")); | |
2797 | |
2798 matchstate = &state_ptr[istate++]; /* the match state */ | |
2799 matchstate->c = NFA_MATCH; | |
2800 matchstate->out = matchstate->out1 = NULL; | |
2801 | |
2802 patch(e.out, matchstate); | |
4484 | 2803 ret = e.start; |
2804 | |
2805 theend: | |
2806 vim_free(stack); | |
2807 return ret; | |
4444 | 2808 |
2809 #undef POP1 | |
2810 #undef PUSH1 | |
2811 #undef POP2 | |
2812 #undef PUSH2 | |
2813 #undef POP | |
2814 #undef PUSH | |
2815 } | |
2816 | |
2817 /**************************************************************** | |
2818 * NFA execution code. | |
2819 ****************************************************************/ | |
2820 | |
4563
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
2821 typedef struct |
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
2822 { |
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
2823 int in_use; /* number of subexpr with useful info */ |
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
2824 |
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
2825 /* When REG_MULTI is TRUE list.multi is used, otherwise list.line. */ |
4563
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
2826 union |
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
2827 { |
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
2828 struct multipos |
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
2829 { |
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
2830 lpos_T start; |
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
2831 lpos_T end; |
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
2832 } multi[NSUBEXP]; |
4563
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
2833 struct linepos |
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
2834 { |
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
2835 char_u *start; |
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
2836 char_u *end; |
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
2837 } line[NSUBEXP]; |
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
2838 } list; |
4563
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
2839 } regsub_T; |
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
2840 |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2841 typedef struct |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2842 { |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2843 regsub_T norm; /* \( .. \) matches */ |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2844 #ifdef FEAT_SYN_HL |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2845 regsub_T synt; /* \z( .. \) matches */ |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2846 #endif |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2847 } regsubs_T; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2848 |
4726
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
2849 /* nfa_pim_T stores a Postponed Invisible Match. */ |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
2850 typedef struct nfa_pim_S nfa_pim_T; |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
2851 struct nfa_pim_S |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
2852 { |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
2853 nfa_state_T *state; |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
2854 int result; /* NFA_PIM_TODO, NFA_PIM_[NO]MATCH */ |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
2855 nfa_pim_T *pim; /* another PIM at the same position */ |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
2856 regsubs_T subs; /* submatch info, only party used */ |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
2857 }; |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
2858 |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
2859 /* Values for done in nfa_pim_T. */ |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
2860 #define NFA_PIM_TODO 0 |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
2861 #define NFA_PIM_MATCH 1 |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
2862 #define NFA_PIM_NOMATCH -1 |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
2863 |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
2864 |
4561
4d81fdda8f35
updated for version 7.3.1028
Bram Moolenaar <bram@vim.org>
parents:
4559
diff
changeset
|
2865 /* nfa_thread_T contains execution information of a NFA state */ |
4539
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
2866 typedef struct |
4444 | 2867 { |
2868 nfa_state_T *state; | |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2869 int count; |
4726
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
2870 nfa_pim_T *pim; /* if not NULL: postponed invisible match */ |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2871 regsubs_T subs; /* submatch info, only party used */ |
4539
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
2872 } nfa_thread_T; |
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
2873 |
4561
4d81fdda8f35
updated for version 7.3.1028
Bram Moolenaar <bram@vim.org>
parents:
4559
diff
changeset
|
2874 /* nfa_list_T contains the alternative NFA execution states. */ |
4444 | 2875 typedef struct |
2876 { | |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2877 nfa_thread_T *t; /* allocated array of states */ |
4647
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2878 int n; /* nr of states currently in "t" */ |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2879 int len; /* max nr of states in "t" */ |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2880 int id; /* ID of the list */ |
4539
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
2881 } nfa_list_T; |
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
2882 |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2883 #ifdef ENABLE_LOG |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2884 static void log_subsexpr __ARGS((regsubs_T *subs)); |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2885 static void log_subexpr __ARGS((regsub_T *sub)); |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2886 |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2887 static void |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2888 log_subsexpr(subs) |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2889 regsubs_T *subs; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2890 { |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2891 log_subexpr(&subs->norm); |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2892 # ifdef FEAT_SYN_HL |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2893 log_subexpr(&subs->synt); |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2894 # endif |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2895 } |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2896 |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2897 static void |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2898 log_subexpr(sub) |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2899 regsub_T *sub; |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2900 { |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2901 int j; |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2902 |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2903 for (j = 0; j < sub->in_use; j++) |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2904 if (REG_MULTI) |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2905 fprintf(log_fd, "\n *** group %d, start: c=%d, l=%d, end: c=%d, l=%d", |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2906 j, |
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
2907 sub->list.multi[j].start.col, |
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
2908 (int)sub->list.multi[j].start.lnum, |
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
2909 sub->list.multi[j].end.col, |
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
2910 (int)sub->list.multi[j].end.lnum); |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2911 else |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2912 fprintf(log_fd, "\n *** group %d, start: \"%s\", end: \"%s\"", |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2913 j, |
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
2914 (char *)sub->list.line[j].start, |
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
2915 (char *)sub->list.line[j].end); |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2916 fprintf(log_fd, "\n"); |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2917 } |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2918 #endif |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2919 |
4561
4d81fdda8f35
updated for version 7.3.1028
Bram Moolenaar <bram@vim.org>
parents:
4559
diff
changeset
|
2920 /* Used during execution: whether a match has been found. */ |
4d81fdda8f35
updated for version 7.3.1028
Bram Moolenaar <bram@vim.org>
parents:
4559
diff
changeset
|
2921 static int nfa_match; |
4d81fdda8f35
updated for version 7.3.1028
Bram Moolenaar <bram@vim.org>
parents:
4559
diff
changeset
|
2922 |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2923 static void clear_sub __ARGS((regsub_T *sub)); |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2924 static void copy_sub __ARGS((regsub_T *to, regsub_T *from)); |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2925 static void copy_sub_off __ARGS((regsub_T *to, regsub_T *from)); |
4647
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2926 static int sub_equal __ARGS((regsub_T *sub1, regsub_T *sub2)); |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2927 static void addstate __ARGS((nfa_list_T *l, nfa_state_T *state, regsubs_T *subs, int off)); |
4726
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
2928 static void addstate_here __ARGS((nfa_list_T *l, nfa_state_T *state, regsubs_T *subs, nfa_pim_T *pim, int *ip)); |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2929 |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2930 static void |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2931 clear_sub(sub) |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2932 regsub_T *sub; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2933 { |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2934 if (REG_MULTI) |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2935 /* Use 0xff to set lnum to -1 */ |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2936 vim_memset(sub->list.multi, 0xff, |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2937 sizeof(struct multipos) * nfa_nsubexpr); |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2938 else |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2939 vim_memset(sub->list.line, 0, sizeof(struct linepos) * nfa_nsubexpr); |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2940 sub->in_use = 0; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2941 } |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2942 |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2943 /* |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2944 * Copy the submatches from "from" to "to". |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2945 */ |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2946 static void |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2947 copy_sub(to, from) |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2948 regsub_T *to; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2949 regsub_T *from; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2950 { |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2951 to->in_use = from->in_use; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2952 if (from->in_use > 0) |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2953 { |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2954 /* Copy the match start and end positions. */ |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2955 if (REG_MULTI) |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2956 mch_memmove(&to->list.multi[0], |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2957 &from->list.multi[0], |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2958 sizeof(struct multipos) * from->in_use); |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2959 else |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2960 mch_memmove(&to->list.line[0], |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2961 &from->list.line[0], |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2962 sizeof(struct linepos) * from->in_use); |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2963 } |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2964 } |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2965 |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2966 /* |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2967 * Like copy_sub() but exclude the main match. |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2968 */ |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2969 static void |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2970 copy_sub_off(to, from) |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2971 regsub_T *to; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2972 regsub_T *from; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2973 { |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2974 if (to->in_use < from->in_use) |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2975 to->in_use = from->in_use; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2976 if (from->in_use > 1) |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2977 { |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2978 /* Copy the match start and end positions. */ |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2979 if (REG_MULTI) |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2980 mch_memmove(&to->list.multi[1], |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2981 &from->list.multi[1], |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2982 sizeof(struct multipos) * (from->in_use - 1)); |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2983 else |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2984 mch_memmove(&to->list.line[1], |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2985 &from->list.line[1], |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2986 sizeof(struct linepos) * (from->in_use - 1)); |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2987 } |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2988 } |
4444 | 2989 |
4647
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2990 /* |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2991 * Return TRUE if "sub1" and "sub2" have the same positions. |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2992 */ |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2993 static int |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2994 sub_equal(sub1, sub2) |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2995 regsub_T *sub1; |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2996 regsub_T *sub2; |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2997 { |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2998 int i; |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2999 int todo; |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3000 linenr_T s1, e1; |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3001 linenr_T s2, e2; |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3002 char_u *sp1, *ep1; |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3003 char_u *sp2, *ep2; |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3004 |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3005 todo = sub1->in_use > sub2->in_use ? sub1->in_use : sub2->in_use; |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3006 if (REG_MULTI) |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3007 { |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3008 for (i = 0; i < todo; ++i) |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3009 { |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3010 if (i < sub1->in_use) |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3011 { |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3012 s1 = sub1->list.multi[i].start.lnum; |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3013 e1 = sub1->list.multi[i].end.lnum; |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3014 } |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3015 else |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3016 { |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3017 s1 = 0; |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3018 e1 = 0; |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3019 } |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3020 if (i < sub2->in_use) |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3021 { |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3022 s2 = sub2->list.multi[i].start.lnum; |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3023 e2 = sub2->list.multi[i].end.lnum; |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3024 } |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3025 else |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3026 { |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3027 s2 = 0; |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3028 e2 = 0; |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3029 } |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3030 if (s1 != s2 || e1 != e2) |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3031 return FALSE; |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3032 if (s1 != 0 && sub1->list.multi[i].start.col |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3033 != sub2->list.multi[i].start.col) |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3034 return FALSE; |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3035 if (e1 != 0 && sub1->list.multi[i].end.col |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3036 != sub2->list.multi[i].end.col) |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3037 return FALSE; |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3038 } |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3039 } |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3040 else |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3041 { |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3042 for (i = 0; i < todo; ++i) |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3043 { |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3044 if (i < sub1->in_use) |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3045 { |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3046 sp1 = sub1->list.line[i].start; |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3047 ep1 = sub1->list.line[i].end; |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3048 } |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3049 else |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3050 { |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3051 sp1 = NULL; |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3052 ep1 = NULL; |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3053 } |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3054 if (i < sub2->in_use) |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3055 { |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3056 sp2 = sub2->list.line[i].start; |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3057 ep2 = sub2->list.line[i].end; |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3058 } |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3059 else |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3060 { |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3061 sp2 = NULL; |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3062 ep2 = NULL; |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3063 } |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3064 if (sp1 != sp2 || ep1 != ep2) |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3065 return FALSE; |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3066 } |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3067 } |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3068 |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3069 return TRUE; |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3070 } |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3071 |
4712
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
3072 #ifdef ENABLE_LOG |
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
3073 static void |
4726
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
3074 report_state(char *action, regsub_T *sub, nfa_state_T *state, int lid) |
4712
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
3075 { |
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
3076 int col; |
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
3077 |
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
3078 if (sub->in_use <= 0) |
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
3079 col = -1; |
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
3080 else if (REG_MULTI) |
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
3081 col = sub->list.multi[0].start.col; |
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
3082 else |
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
3083 col = (int)(sub->list.line[0].start - regline); |
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
3084 nfa_set_code(state->c); |
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
3085 fprintf(log_fd, "> %s state %d to list %d. char %d: %s (start col %d)\n", |
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
3086 action, abs(state->id), lid, state->c, code, col); |
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
3087 } |
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
3088 #endif |
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
3089 |
4444 | 3090 static void |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3091 addstate(l, state, subs, off) |
4539
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3092 nfa_list_T *l; /* runtime state list */ |
4444 | 3093 nfa_state_T *state; /* state to update */ |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3094 regsubs_T *subs; /* pointers to subexpressions */ |
4515
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
3095 int off; /* byte offset, when -1 go to next line */ |
4444 | 3096 { |
4561
4d81fdda8f35
updated for version 7.3.1028
Bram Moolenaar <bram@vim.org>
parents:
4559
diff
changeset
|
3097 int subidx; |
4647
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3098 nfa_thread_T *thread; |
4561
4d81fdda8f35
updated for version 7.3.1028
Bram Moolenaar <bram@vim.org>
parents:
4559
diff
changeset
|
3099 lpos_T save_lpos; |
4563
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3100 int save_in_use; |
4561
4d81fdda8f35
updated for version 7.3.1028
Bram Moolenaar <bram@vim.org>
parents:
4559
diff
changeset
|
3101 char_u *save_ptr; |
4563
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3102 int i; |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3103 regsub_T *sub; |
4657
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3104 #ifdef ENABLE_LOG |
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3105 int did_print = FALSE; |
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3106 #endif |
4444 | 3107 |
3108 if (l == NULL || state == NULL) | |
3109 return; | |
3110 | |
3111 switch (state->c) | |
3112 { | |
3113 case NFA_SPLIT: | |
3114 case NFA_NOT: | |
3115 case NFA_NOPEN: | |
3116 case NFA_NCLOSE: | |
3117 case NFA_MCLOSE: | |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3118 case NFA_MCLOSE1: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3119 case NFA_MCLOSE2: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3120 case NFA_MCLOSE3: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3121 case NFA_MCLOSE4: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3122 case NFA_MCLOSE5: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3123 case NFA_MCLOSE6: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3124 case NFA_MCLOSE7: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3125 case NFA_MCLOSE8: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3126 case NFA_MCLOSE9: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3127 #ifdef FEAT_SYN_HL |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3128 case NFA_ZCLOSE: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3129 case NFA_ZCLOSE1: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3130 case NFA_ZCLOSE2: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3131 case NFA_ZCLOSE3: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3132 case NFA_ZCLOSE4: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3133 case NFA_ZCLOSE5: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3134 case NFA_ZCLOSE6: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3135 case NFA_ZCLOSE7: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3136 case NFA_ZCLOSE8: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3137 case NFA_ZCLOSE9: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3138 #endif |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3139 /* These nodes are not added themselves but their "out" and/or |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3140 * "out1" may be added below. */ |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3141 break; |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3142 |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3143 case NFA_MOPEN: |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3144 case NFA_MOPEN1: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3145 case NFA_MOPEN2: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3146 case NFA_MOPEN3: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3147 case NFA_MOPEN4: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3148 case NFA_MOPEN5: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3149 case NFA_MOPEN6: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3150 case NFA_MOPEN7: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3151 case NFA_MOPEN8: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3152 case NFA_MOPEN9: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3153 #ifdef FEAT_SYN_HL |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3154 case NFA_ZOPEN: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3155 case NFA_ZOPEN1: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3156 case NFA_ZOPEN2: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3157 case NFA_ZOPEN3: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3158 case NFA_ZOPEN4: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3159 case NFA_ZOPEN5: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3160 case NFA_ZOPEN6: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3161 case NFA_ZOPEN7: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3162 case NFA_ZOPEN8: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3163 case NFA_ZOPEN9: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3164 #endif |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3165 /* These nodes do not need to be added, but we need to bail out |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3166 * when it was tried to be added to this list before. */ |
4718
ec72bb4a0fc2
updated for version 7.3.1106
Bram Moolenaar <bram@vim.org>
parents:
4716
diff
changeset
|
3167 if (state->lastlist[nfa_ll_index] == l->id) |
4657
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3168 goto skip_add; |
4718
ec72bb4a0fc2
updated for version 7.3.1106
Bram Moolenaar <bram@vim.org>
parents:
4716
diff
changeset
|
3169 state->lastlist[nfa_ll_index] = l->id; |
4444 | 3170 break; |
3171 | |
4694
efc4fb311d5d
updated for version 7.3.1094
Bram Moolenaar <bram@vim.org>
parents:
4692
diff
changeset
|
3172 case NFA_BOL: |
efc4fb311d5d
updated for version 7.3.1094
Bram Moolenaar <bram@vim.org>
parents:
4692
diff
changeset
|
3173 case NFA_BOF: |
efc4fb311d5d
updated for version 7.3.1094
Bram Moolenaar <bram@vim.org>
parents:
4692
diff
changeset
|
3174 /* "^" won't match past end-of-line, don't bother trying. |
efc4fb311d5d
updated for version 7.3.1094
Bram Moolenaar <bram@vim.org>
parents:
4692
diff
changeset
|
3175 * Except when we are going to the next line for a look-behind |
efc4fb311d5d
updated for version 7.3.1094
Bram Moolenaar <bram@vim.org>
parents:
4692
diff
changeset
|
3176 * match. */ |
efc4fb311d5d
updated for version 7.3.1094
Bram Moolenaar <bram@vim.org>
parents:
4692
diff
changeset
|
3177 if (reginput > regline |
efc4fb311d5d
updated for version 7.3.1094
Bram Moolenaar <bram@vim.org>
parents:
4692
diff
changeset
|
3178 && (nfa_endp == NULL |
efc4fb311d5d
updated for version 7.3.1094
Bram Moolenaar <bram@vim.org>
parents:
4692
diff
changeset
|
3179 || !REG_MULTI |
efc4fb311d5d
updated for version 7.3.1094
Bram Moolenaar <bram@vim.org>
parents:
4692
diff
changeset
|
3180 || reglnum == nfa_endp->se_u.pos.lnum)) |
efc4fb311d5d
updated for version 7.3.1094
Bram Moolenaar <bram@vim.org>
parents:
4692
diff
changeset
|
3181 goto skip_add; |
efc4fb311d5d
updated for version 7.3.1094
Bram Moolenaar <bram@vim.org>
parents:
4692
diff
changeset
|
3182 /* FALLTHROUGH */ |
efc4fb311d5d
updated for version 7.3.1094
Bram Moolenaar <bram@vim.org>
parents:
4692
diff
changeset
|
3183 |
4444 | 3184 default: |
4718
ec72bb4a0fc2
updated for version 7.3.1106
Bram Moolenaar <bram@vim.org>
parents:
4716
diff
changeset
|
3185 if (state->lastlist[nfa_ll_index] == l->id) |
4444 | 3186 { |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3187 /* This state is already in the list, don't add it again, |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3188 * unless it is an MOPEN that is used for a backreference. */ |
4647
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3189 if (!nfa_has_backref) |
4657
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3190 { |
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3191 skip_add: |
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3192 #ifdef ENABLE_LOG |
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3193 nfa_set_code(state->c); |
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3194 fprintf(log_fd, "> Not adding state %d to list %d. char %d: %s\n", |
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3195 abs(state->id), l->id, state->c, code); |
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3196 #endif |
4647
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3197 return; |
4657
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3198 } |
4647
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3199 |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3200 /* See if the same state is already in the list with the same |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3201 * positions. */ |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3202 for (i = 0; i < l->n; ++i) |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3203 { |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3204 thread = &l->t[i]; |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3205 if (thread->state->id == state->id |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3206 && sub_equal(&thread->subs.norm, &subs->norm) |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3207 #ifdef FEAT_SYN_HL |
4712
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
3208 && (!nfa_has_zsubexpr || |
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
3209 sub_equal(&thread->subs.synt, &subs->synt)) |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3210 #endif |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3211 ) |
4657
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3212 goto skip_add; |
4647
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3213 } |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3214 } |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3215 |
4726
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
3216 /* when there are backreferences or look-behind matches the number |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
3217 * of states may be (a lot) bigger */ |
4647
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3218 if (nfa_has_backref && l->n == l->len) |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3219 { |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3220 int newlen = l->len * 3 / 2 + 50; |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3221 |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3222 l->t = vim_realloc(l->t, newlen * sizeof(nfa_thread_T)); |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3223 l->len = newlen; |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3224 } |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3225 |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3226 /* add the state to the list */ |
4718
ec72bb4a0fc2
updated for version 7.3.1106
Bram Moolenaar <bram@vim.org>
parents:
4716
diff
changeset
|
3227 state->lastlist[nfa_ll_index] = l->id; |
4647
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3228 thread = &l->t[l->n++]; |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3229 thread->state = state; |
4726
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
3230 thread->pim = NULL; |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3231 copy_sub(&thread->subs.norm, &subs->norm); |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3232 #ifdef FEAT_SYN_HL |
4712
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
3233 if (nfa_has_zsubexpr) |
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
3234 copy_sub(&thread->subs.synt, &subs->synt); |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3235 #endif |
4657
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3236 #ifdef ENABLE_LOG |
4712
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
3237 report_state("Adding", &thread->subs.norm, state, l->id); |
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
3238 did_print = TRUE; |
4657
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3239 #endif |
4444 | 3240 } |
3241 | |
3242 #ifdef ENABLE_LOG | |
4657
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3243 if (!did_print) |
4712
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
3244 report_state("Processing", &subs->norm, state, l->id); |
4444 | 3245 #endif |
3246 switch (state->c) | |
3247 { | |
3248 case NFA_MATCH: | |
4561
4d81fdda8f35
updated for version 7.3.1028
Bram Moolenaar <bram@vim.org>
parents:
4559
diff
changeset
|
3249 nfa_match = TRUE; |
4444 | 3250 break; |
3251 | |
3252 case NFA_SPLIT: | |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3253 /* order matters here */ |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3254 addstate(l, state->out, subs, off); |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3255 addstate(l, state->out1, subs, off); |
4444 | 3256 break; |
3257 | |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3258 case NFA_SKIP_CHAR: |
4444 | 3259 case NFA_NOPEN: |
3260 case NFA_NCLOSE: | |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3261 addstate(l, state->out, subs, off); |
4444 | 3262 break; |
3263 | |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3264 case NFA_MOPEN: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3265 case NFA_MOPEN1: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3266 case NFA_MOPEN2: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3267 case NFA_MOPEN3: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3268 case NFA_MOPEN4: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3269 case NFA_MOPEN5: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3270 case NFA_MOPEN6: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3271 case NFA_MOPEN7: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3272 case NFA_MOPEN8: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3273 case NFA_MOPEN9: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3274 #ifdef FEAT_SYN_HL |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3275 case NFA_ZOPEN: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3276 case NFA_ZOPEN1: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3277 case NFA_ZOPEN2: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3278 case NFA_ZOPEN3: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3279 case NFA_ZOPEN4: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3280 case NFA_ZOPEN5: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3281 case NFA_ZOPEN6: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3282 case NFA_ZOPEN7: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3283 case NFA_ZOPEN8: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3284 case NFA_ZOPEN9: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3285 #endif |
4444 | 3286 case NFA_ZSTART: |
3287 if (state->c == NFA_ZSTART) | |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3288 { |
4444 | 3289 subidx = 0; |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3290 sub = &subs->norm; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3291 } |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3292 #ifdef FEAT_SYN_HL |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3293 else if (state->c >= NFA_ZOPEN) |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3294 { |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3295 subidx = state->c - NFA_ZOPEN; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3296 sub = &subs->synt; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3297 } |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3298 #endif |
4561
4d81fdda8f35
updated for version 7.3.1028
Bram Moolenaar <bram@vim.org>
parents:
4559
diff
changeset
|
3299 else |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3300 { |
4561
4d81fdda8f35
updated for version 7.3.1028
Bram Moolenaar <bram@vim.org>
parents:
4559
diff
changeset
|
3301 subidx = state->c - NFA_MOPEN; |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3302 sub = &subs->norm; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3303 } |
4444 | 3304 |
4563
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3305 /* Set the position (with "off") in the subexpression. Save and |
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3306 * restore it when it was in use. Otherwise fill any gap. */ |
4649
9f502d8d5165
updated for version 7.3.1072
Bram Moolenaar <bram@vim.org>
parents:
4647
diff
changeset
|
3307 save_ptr = NULL; |
4444 | 3308 if (REG_MULTI) |
3309 { | |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3310 if (subidx < sub->in_use) |
4563
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3311 { |
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3312 save_lpos = sub->list.multi[subidx].start; |
4563
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3313 save_in_use = -1; |
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3314 } |
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3315 else |
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3316 { |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3317 save_in_use = sub->in_use; |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3318 for (i = sub->in_use; i < subidx; ++i) |
4563
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3319 { |
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3320 sub->list.multi[i].start.lnum = -1; |
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3321 sub->list.multi[i].end.lnum = -1; |
4563
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3322 } |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3323 sub->in_use = subidx + 1; |
4563
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3324 } |
4515
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
3325 if (off == -1) |
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
3326 { |
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3327 sub->list.multi[subidx].start.lnum = reglnum + 1; |
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3328 sub->list.multi[subidx].start.col = 0; |
4515
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
3329 } |
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
3330 else |
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
3331 { |
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3332 sub->list.multi[subidx].start.lnum = reglnum; |
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3333 sub->list.multi[subidx].start.col = |
4515
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
3334 (colnr_T)(reginput - regline + off); |
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
3335 } |
4444 | 3336 } |
3337 else | |
3338 { | |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3339 if (subidx < sub->in_use) |
4563
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3340 { |
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3341 save_ptr = sub->list.line[subidx].start; |
4563
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3342 save_in_use = -1; |
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3343 } |
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3344 else |
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3345 { |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3346 save_in_use = sub->in_use; |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3347 for (i = sub->in_use; i < subidx; ++i) |
4563
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3348 { |
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3349 sub->list.line[i].start = NULL; |
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3350 sub->list.line[i].end = NULL; |
4563
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3351 } |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3352 sub->in_use = subidx + 1; |
4563
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3353 } |
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3354 sub->list.line[subidx].start = reginput + off; |
4444 | 3355 } |
3356 | |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3357 addstate(l, state->out, subs, off); |
4444 | 3358 |
4563
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3359 if (save_in_use == -1) |
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3360 { |
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3361 if (REG_MULTI) |
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3362 sub->list.multi[subidx].start = save_lpos; |
4563
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3363 else |
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3364 sub->list.line[subidx].start = save_ptr; |
4563
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3365 } |
4444 | 3366 else |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3367 sub->in_use = save_in_use; |
4444 | 3368 break; |
3369 | |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3370 case NFA_MCLOSE: |
4553
7b835b2969af
updated for version 7.3.1024
Bram Moolenaar <bram@vim.org>
parents:
4551
diff
changeset
|
3371 if (nfa_has_zend) |
4444 | 3372 { |
4569
f262fb02889d
updated for version 7.3.1032
Bram Moolenaar <bram@vim.org>
parents:
4567
diff
changeset
|
3373 /* Do not overwrite the position set by \ze. If no \ze |
f262fb02889d
updated for version 7.3.1032
Bram Moolenaar <bram@vim.org>
parents:
4567
diff
changeset
|
3374 * encountered end will be set in nfa_regtry(). */ |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3375 addstate(l, state->out, subs, off); |
4444 | 3376 break; |
3377 } | |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3378 case NFA_MCLOSE1: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3379 case NFA_MCLOSE2: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3380 case NFA_MCLOSE3: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3381 case NFA_MCLOSE4: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3382 case NFA_MCLOSE5: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3383 case NFA_MCLOSE6: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3384 case NFA_MCLOSE7: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3385 case NFA_MCLOSE8: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3386 case NFA_MCLOSE9: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3387 #ifdef FEAT_SYN_HL |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3388 case NFA_ZCLOSE: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3389 case NFA_ZCLOSE1: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3390 case NFA_ZCLOSE2: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3391 case NFA_ZCLOSE3: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3392 case NFA_ZCLOSE4: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3393 case NFA_ZCLOSE5: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3394 case NFA_ZCLOSE6: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3395 case NFA_ZCLOSE7: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3396 case NFA_ZCLOSE8: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3397 case NFA_ZCLOSE9: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3398 #endif |
4444 | 3399 case NFA_ZEND: |
3400 if (state->c == NFA_ZEND) | |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3401 { |
4444 | 3402 subidx = 0; |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3403 sub = &subs->norm; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3404 } |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3405 #ifdef FEAT_SYN_HL |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3406 else if (state->c >= NFA_ZCLOSE) |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3407 { |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3408 subidx = state->c - NFA_ZCLOSE; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3409 sub = &subs->synt; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3410 } |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3411 #endif |
4561
4d81fdda8f35
updated for version 7.3.1028
Bram Moolenaar <bram@vim.org>
parents:
4559
diff
changeset
|
3412 else |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3413 { |
4561
4d81fdda8f35
updated for version 7.3.1028
Bram Moolenaar <bram@vim.org>
parents:
4559
diff
changeset
|
3414 subidx = state->c - NFA_MCLOSE; |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3415 sub = &subs->norm; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3416 } |
4444 | 3417 |
4563
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3418 /* We don't fill in gaps here, there must have been an MOPEN that |
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3419 * has done that. */ |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3420 save_in_use = sub->in_use; |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3421 if (sub->in_use <= subidx) |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3422 sub->in_use = subidx + 1; |
4444 | 3423 if (REG_MULTI) |
3424 { | |
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3425 save_lpos = sub->list.multi[subidx].end; |
4515
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
3426 if (off == -1) |
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
3427 { |
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3428 sub->list.multi[subidx].end.lnum = reglnum + 1; |
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3429 sub->list.multi[subidx].end.col = 0; |
4515
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
3430 } |
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
3431 else |
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
3432 { |
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3433 sub->list.multi[subidx].end.lnum = reglnum; |
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3434 sub->list.multi[subidx].end.col = |
4561
4d81fdda8f35
updated for version 7.3.1028
Bram Moolenaar <bram@vim.org>
parents:
4559
diff
changeset
|
3435 (colnr_T)(reginput - regline + off); |
4515
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
3436 } |
4444 | 3437 } |
3438 else | |
3439 { | |
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3440 save_ptr = sub->list.line[subidx].end; |
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3441 sub->list.line[subidx].end = reginput + off; |
4444 | 3442 } |
3443 | |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3444 addstate(l, state->out, subs, off); |
4444 | 3445 |
3446 if (REG_MULTI) | |
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3447 sub->list.multi[subidx].end = save_lpos; |
4444 | 3448 else |
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3449 sub->list.line[subidx].end = save_ptr; |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3450 sub->in_use = save_in_use; |
4444 | 3451 break; |
3452 } | |
3453 } | |
3454 | |
3455 /* | |
4539
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3456 * Like addstate(), but the new state(s) are put at position "*ip". |
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3457 * Used for zero-width matches, next state to use is the added one. |
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3458 * This makes sure the order of states to be tried does not change, which |
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3459 * matters for alternatives. |
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3460 */ |
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3461 static void |
4726
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
3462 addstate_here(l, state, subs, pim, ip) |
4539
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3463 nfa_list_T *l; /* runtime state list */ |
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3464 nfa_state_T *state; /* state to update */ |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3465 regsubs_T *subs; /* pointers to subexpressions */ |
4726
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
3466 nfa_pim_T *pim; /* postponed look-behind match */ |
4539
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3467 int *ip; |
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3468 { |
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3469 int tlen = l->n; |
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3470 int count; |
4726
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
3471 int listidx = *ip; |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
3472 int i; |
4539
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3473 |
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3474 /* first add the state(s) at the end, so that we know how many there are */ |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3475 addstate(l, state, subs, 0); |
4539
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3476 |
4726
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
3477 /* fill in the "pim" field in the new states */ |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
3478 if (pim != NULL) |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
3479 for (i = tlen; i < l->n; ++i) |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
3480 l->t[i].pim = pim; |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
3481 |
4539
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3482 /* when "*ip" was at the end of the list, nothing to do */ |
4726
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
3483 if (listidx + 1 == tlen) |
4539
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3484 return; |
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3485 |
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3486 /* re-order to put the new state at the current position */ |
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3487 count = l->n - tlen; |
4647
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3488 if (count == 1) |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3489 { |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3490 /* overwrite the current state */ |
4726
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
3491 l->t[listidx] = l->t[l->n - 1]; |
4647
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3492 } |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3493 else if (count > 1) |
4539
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3494 { |
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3495 /* make space for new states, then move them from the |
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3496 * end to the current position */ |
4726
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
3497 mch_memmove(&(l->t[listidx + count]), |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
3498 &(l->t[listidx + 1]), |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
3499 sizeof(nfa_thread_T) * (l->n - listidx - 1)); |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
3500 mch_memmove(&(l->t[listidx]), |
4539
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3501 &(l->t[l->n - 1]), |
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3502 sizeof(nfa_thread_T) * count); |
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3503 } |
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3504 --l->n; |
4726
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
3505 *ip = listidx - 1; |
4539
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3506 } |
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3507 |
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3508 /* |
4444 | 3509 * Check character class "class" against current character c. |
3510 */ | |
3511 static int | |
3512 check_char_class(class, c) | |
3513 int class; | |
3514 int c; | |
3515 { | |
3516 switch (class) | |
3517 { | |
3518 case NFA_CLASS_ALNUM: | |
4464 | 3519 if (c >= 1 && c <= 255 && isalnum(c)) |
4444 | 3520 return OK; |
3521 break; | |
3522 case NFA_CLASS_ALPHA: | |
4464 | 3523 if (c >= 1 && c <= 255 && isalpha(c)) |
4444 | 3524 return OK; |
3525 break; | |
3526 case NFA_CLASS_BLANK: | |
3527 if (c == ' ' || c == '\t') | |
3528 return OK; | |
3529 break; | |
3530 case NFA_CLASS_CNTRL: | |
4464 | 3531 if (c >= 1 && c <= 255 && iscntrl(c)) |
4444 | 3532 return OK; |
3533 break; | |
3534 case NFA_CLASS_DIGIT: | |
3535 if (VIM_ISDIGIT(c)) | |
3536 return OK; | |
3537 break; | |
3538 case NFA_CLASS_GRAPH: | |
4464 | 3539 if (c >= 1 && c <= 255 && isgraph(c)) |
4444 | 3540 return OK; |
3541 break; | |
3542 case NFA_CLASS_LOWER: | |
3543 if (MB_ISLOWER(c)) | |
3544 return OK; | |
3545 break; | |
3546 case NFA_CLASS_PRINT: | |
3547 if (vim_isprintc(c)) | |
3548 return OK; | |
3549 break; | |
3550 case NFA_CLASS_PUNCT: | |
4464 | 3551 if (c >= 1 && c <= 255 && ispunct(c)) |
4444 | 3552 return OK; |
3553 break; | |
3554 case NFA_CLASS_SPACE: | |
3555 if ((c >=9 && c <= 13) || (c == ' ')) | |
3556 return OK; | |
3557 break; | |
3558 case NFA_CLASS_UPPER: | |
3559 if (MB_ISUPPER(c)) | |
3560 return OK; | |
3561 break; | |
3562 case NFA_CLASS_XDIGIT: | |
3563 if (vim_isxdigit(c)) | |
3564 return OK; | |
3565 break; | |
3566 case NFA_CLASS_TAB: | |
3567 if (c == '\t') | |
3568 return OK; | |
3569 break; | |
3570 case NFA_CLASS_RETURN: | |
3571 if (c == '\r') | |
3572 return OK; | |
3573 break; | |
3574 case NFA_CLASS_BACKSPACE: | |
3575 if (c == '\b') | |
3576 return OK; | |
3577 break; | |
3578 case NFA_CLASS_ESCAPE: | |
3579 if (c == '\033') | |
3580 return OK; | |
3581 break; | |
3582 | |
3583 default: | |
3584 /* should not be here :P */ | |
3585 EMSG_RET_FAIL(_("E877: (NFA regexp) Invalid character class ")); | |
3586 } | |
3587 return FAIL; | |
3588 } | |
3589 | |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3590 static int match_backref __ARGS((regsub_T *sub, int subidx, int *bytelen)); |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3591 |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3592 /* |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3593 * Check for a match with subexpression "subidx". |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3594 * Return TRUE if it matches. |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3595 */ |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3596 static int |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3597 match_backref(sub, subidx, bytelen) |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3598 regsub_T *sub; /* pointers to subexpressions */ |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3599 int subidx; |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3600 int *bytelen; /* out: length of match in bytes */ |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3601 { |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3602 int len; |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3603 |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3604 if (sub->in_use <= subidx) |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3605 { |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3606 retempty: |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3607 /* backref was not set, match an empty string */ |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3608 *bytelen = 0; |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3609 return TRUE; |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3610 } |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3611 |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3612 if (REG_MULTI) |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3613 { |
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3614 if (sub->list.multi[subidx].start.lnum < 0 |
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3615 || sub->list.multi[subidx].end.lnum < 0) |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3616 goto retempty; |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3617 /* TODO: line breaks */ |
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3618 len = sub->list.multi[subidx].end.col |
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3619 - sub->list.multi[subidx].start.col; |
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3620 if (cstrncmp(regline + sub->list.multi[subidx].start.col, |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3621 reginput, &len) == 0) |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3622 { |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3623 *bytelen = len; |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3624 return TRUE; |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3625 } |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3626 } |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3627 else |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3628 { |
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3629 if (sub->list.line[subidx].start == NULL |
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3630 || sub->list.line[subidx].end == NULL) |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3631 goto retempty; |
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3632 len = (int)(sub->list.line[subidx].end - sub->list.line[subidx].start); |
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3633 if (cstrncmp(sub->list.line[subidx].start, reginput, &len) == 0) |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3634 { |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3635 *bytelen = len; |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3636 return TRUE; |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3637 } |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3638 } |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3639 return FALSE; |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3640 } |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3641 |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3642 #ifdef FEAT_SYN_HL |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3643 |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3644 static int match_zref __ARGS((int subidx, int *bytelen)); |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3645 |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3646 /* |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3647 * Check for a match with \z subexpression "subidx". |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3648 * Return TRUE if it matches. |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3649 */ |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3650 static int |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3651 match_zref(subidx, bytelen) |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3652 int subidx; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3653 int *bytelen; /* out: length of match in bytes */ |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3654 { |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3655 int len; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3656 |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3657 cleanup_zsubexpr(); |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3658 if (re_extmatch_in == NULL || re_extmatch_in->matches[subidx] == NULL) |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3659 { |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3660 /* backref was not set, match an empty string */ |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3661 *bytelen = 0; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3662 return TRUE; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3663 } |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3664 |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3665 len = (int)STRLEN(re_extmatch_in->matches[subidx]); |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3666 if (cstrncmp(re_extmatch_in->matches[subidx], reginput, &len) == 0) |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3667 { |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3668 *bytelen = len; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3669 return TRUE; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3670 } |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3671 return FALSE; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3672 } |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3673 #endif |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3674 |
4444 | 3675 /* |
4712
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
3676 * Save list IDs for all NFA states of "prog" into "list". |
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
3677 * Also reset the IDs to zero. |
4718
ec72bb4a0fc2
updated for version 7.3.1106
Bram Moolenaar <bram@vim.org>
parents:
4716
diff
changeset
|
3678 * Only used for the recursive value lastlist[1]. |
4444 | 3679 */ |
3680 static void | |
4712
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
3681 nfa_save_listids(prog, list) |
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
3682 nfa_regprog_T *prog; |
4444 | 3683 int *list; |
3684 { | |
4712
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
3685 int i; |
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
3686 nfa_state_T *p; |
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
3687 |
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
3688 /* Order in the list is reverse, it's a bit faster that way. */ |
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
3689 p = &prog->state[0]; |
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
3690 for (i = prog->nstate; --i >= 0; ) |
4444 | 3691 { |
4718
ec72bb4a0fc2
updated for version 7.3.1106
Bram Moolenaar <bram@vim.org>
parents:
4716
diff
changeset
|
3692 list[i] = p->lastlist[1]; |
ec72bb4a0fc2
updated for version 7.3.1106
Bram Moolenaar <bram@vim.org>
parents:
4716
diff
changeset
|
3693 p->lastlist[1] = 0; |
4712
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
3694 ++p; |
4444 | 3695 } |
3696 } | |
3697 | |
3698 /* | |
3699 * Restore list IDs from "list" to all NFA states. | |
3700 */ | |
3701 static void | |
4712
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
3702 nfa_restore_listids(prog, list) |
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
3703 nfa_regprog_T *prog; |
4444 | 3704 int *list; |
3705 { | |
4712
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
3706 int i; |
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
3707 nfa_state_T *p; |
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
3708 |
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
3709 p = &prog->state[0]; |
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
3710 for (i = prog->nstate; --i >= 0; ) |
4444 | 3711 { |
4718
ec72bb4a0fc2
updated for version 7.3.1106
Bram Moolenaar <bram@vim.org>
parents:
4716
diff
changeset
|
3712 p->lastlist[1] = list[i]; |
4712
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
3713 ++p; |
4444 | 3714 } |
3715 } | |
3716 | |
4583
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
3717 static int |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
3718 nfa_re_num_cmp(val, op, pos) |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
3719 long_u val; |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
3720 int op; |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
3721 long_u pos; |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
3722 { |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
3723 if (op == 1) return pos > val; |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
3724 if (op == 2) return pos < val; |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
3725 return val == pos; |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
3726 } |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
3727 |
4716
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3728 static int recursive_regmatch __ARGS((nfa_state_T *state, nfa_regprog_T *prog, regsubs_T *submatch, regsubs_T *m, int **listids)); |
4712
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
3729 static int nfa_regmatch __ARGS((nfa_regprog_T *prog, nfa_state_T *start, regsubs_T *submatch, regsubs_T *m)); |
4563
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3730 |
4444 | 3731 /* |
4716
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3732 * Recursively call nfa_regmatch() |
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3733 */ |
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3734 static int |
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3735 recursive_regmatch(state, prog, submatch, m, listids) |
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3736 nfa_state_T *state; |
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3737 nfa_regprog_T *prog; |
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3738 regsubs_T *submatch; |
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3739 regsubs_T *m; |
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3740 int **listids; |
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3741 { |
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3742 char_u *save_reginput = reginput; |
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3743 char_u *save_regline = regline; |
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3744 int save_reglnum = reglnum; |
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3745 int save_nfa_match = nfa_match; |
4718
ec72bb4a0fc2
updated for version 7.3.1106
Bram Moolenaar <bram@vim.org>
parents:
4716
diff
changeset
|
3746 int save_nfa_listid = nfa_listid; |
4716
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3747 save_se_T *save_nfa_endp = nfa_endp; |
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3748 save_se_T endpos; |
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3749 save_se_T *endposp = NULL; |
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3750 int result; |
4718
ec72bb4a0fc2
updated for version 7.3.1106
Bram Moolenaar <bram@vim.org>
parents:
4716
diff
changeset
|
3751 int need_restore = FALSE; |
4716
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3752 |
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3753 if (state->c == NFA_START_INVISIBLE_BEFORE) |
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3754 { |
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3755 /* The recursive match must end at the current position. */ |
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3756 endposp = &endpos; |
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3757 if (REG_MULTI) |
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3758 { |
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3759 endpos.se_u.pos.col = (int)(reginput - regline); |
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3760 endpos.se_u.pos.lnum = reglnum; |
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3761 } |
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3762 else |
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3763 endpos.se_u.ptr = reginput; |
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3764 |
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3765 /* Go back the specified number of bytes, or as far as the |
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3766 * start of the previous line, to try matching "\@<=" or |
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3767 * not matching "\@<!". |
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3768 * TODO: This is very inefficient! Would be better to |
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3769 * first check for a match with what follows. */ |
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3770 if (state->val <= 0) |
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3771 { |
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3772 if (REG_MULTI) |
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3773 { |
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3774 regline = reg_getline(--reglnum); |
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3775 if (regline == NULL) |
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3776 /* can't go before the first line */ |
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3777 regline = reg_getline(++reglnum); |
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3778 } |
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3779 reginput = regline; |
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3780 } |
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3781 else |
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3782 { |
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3783 if (REG_MULTI && (int)(reginput - regline) < state->val) |
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3784 { |
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3785 /* Not enough bytes in this line, go to end of |
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3786 * previous line. */ |
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3787 regline = reg_getline(--reglnum); |
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3788 if (regline == NULL) |
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3789 { |
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3790 /* can't go before the first line */ |
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3791 regline = reg_getline(++reglnum); |
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3792 reginput = regline; |
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3793 } |
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3794 else |
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3795 reginput = regline + STRLEN(regline); |
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3796 } |
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3797 if ((int)(reginput - regline) >= state->val) |
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3798 { |
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3799 reginput -= state->val; |
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3800 #ifdef FEAT_MBYTE |
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3801 if (has_mbyte) |
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3802 reginput -= mb_head_off(regline, reginput); |
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3803 #endif |
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3804 } |
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3805 else |
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3806 reginput = regline; |
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3807 } |
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3808 } |
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3809 |
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3810 #ifdef ENABLE_LOG |
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3811 if (log_fd != stderr) |
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3812 fclose(log_fd); |
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3813 log_fd = NULL; |
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3814 #endif |
4718
ec72bb4a0fc2
updated for version 7.3.1106
Bram Moolenaar <bram@vim.org>
parents:
4716
diff
changeset
|
3815 /* Have to clear the lastlist field of the NFA nodes, so that |
ec72bb4a0fc2
updated for version 7.3.1106
Bram Moolenaar <bram@vim.org>
parents:
4716
diff
changeset
|
3816 * nfa_regmatch() and addstate() can run properly after recursion. */ |
ec72bb4a0fc2
updated for version 7.3.1106
Bram Moolenaar <bram@vim.org>
parents:
4716
diff
changeset
|
3817 if (nfa_ll_index == 1) |
ec72bb4a0fc2
updated for version 7.3.1106
Bram Moolenaar <bram@vim.org>
parents:
4716
diff
changeset
|
3818 { |
ec72bb4a0fc2
updated for version 7.3.1106
Bram Moolenaar <bram@vim.org>
parents:
4716
diff
changeset
|
3819 /* Already calling nfa_regmatch() recursively. Save the lastlist[1] |
ec72bb4a0fc2
updated for version 7.3.1106
Bram Moolenaar <bram@vim.org>
parents:
4716
diff
changeset
|
3820 * values and clear them. */ |
ec72bb4a0fc2
updated for version 7.3.1106
Bram Moolenaar <bram@vim.org>
parents:
4716
diff
changeset
|
3821 if (*listids == NULL) |
ec72bb4a0fc2
updated for version 7.3.1106
Bram Moolenaar <bram@vim.org>
parents:
4716
diff
changeset
|
3822 { |
ec72bb4a0fc2
updated for version 7.3.1106
Bram Moolenaar <bram@vim.org>
parents:
4716
diff
changeset
|
3823 *listids = (int *)lalloc(sizeof(int) * nstate, TRUE); |
ec72bb4a0fc2
updated for version 7.3.1106
Bram Moolenaar <bram@vim.org>
parents:
4716
diff
changeset
|
3824 if (*listids == NULL) |
ec72bb4a0fc2
updated for version 7.3.1106
Bram Moolenaar <bram@vim.org>
parents:
4716
diff
changeset
|
3825 { |
ec72bb4a0fc2
updated for version 7.3.1106
Bram Moolenaar <bram@vim.org>
parents:
4716
diff
changeset
|
3826 EMSG(_("E878: (NFA) Could not allocate memory for branch traversal!")); |
ec72bb4a0fc2
updated for version 7.3.1106
Bram Moolenaar <bram@vim.org>
parents:
4716
diff
changeset
|
3827 return 0; |
ec72bb4a0fc2
updated for version 7.3.1106
Bram Moolenaar <bram@vim.org>
parents:
4716
diff
changeset
|
3828 } |
ec72bb4a0fc2
updated for version 7.3.1106
Bram Moolenaar <bram@vim.org>
parents:
4716
diff
changeset
|
3829 } |
ec72bb4a0fc2
updated for version 7.3.1106
Bram Moolenaar <bram@vim.org>
parents:
4716
diff
changeset
|
3830 nfa_save_listids(prog, *listids); |
ec72bb4a0fc2
updated for version 7.3.1106
Bram Moolenaar <bram@vim.org>
parents:
4716
diff
changeset
|
3831 need_restore = TRUE; |
ec72bb4a0fc2
updated for version 7.3.1106
Bram Moolenaar <bram@vim.org>
parents:
4716
diff
changeset
|
3832 /* any value of nfa_listid will do */ |
ec72bb4a0fc2
updated for version 7.3.1106
Bram Moolenaar <bram@vim.org>
parents:
4716
diff
changeset
|
3833 } |
ec72bb4a0fc2
updated for version 7.3.1106
Bram Moolenaar <bram@vim.org>
parents:
4716
diff
changeset
|
3834 else |
ec72bb4a0fc2
updated for version 7.3.1106
Bram Moolenaar <bram@vim.org>
parents:
4716
diff
changeset
|
3835 { |
ec72bb4a0fc2
updated for version 7.3.1106
Bram Moolenaar <bram@vim.org>
parents:
4716
diff
changeset
|
3836 /* First recursive nfa_regmatch() call, switch to the second lastlist |
ec72bb4a0fc2
updated for version 7.3.1106
Bram Moolenaar <bram@vim.org>
parents:
4716
diff
changeset
|
3837 * entry. Make sure nfa_listid is different from a previous recursive |
ec72bb4a0fc2
updated for version 7.3.1106
Bram Moolenaar <bram@vim.org>
parents:
4716
diff
changeset
|
3838 * call, because some states may still have this ID. */ |
ec72bb4a0fc2
updated for version 7.3.1106
Bram Moolenaar <bram@vim.org>
parents:
4716
diff
changeset
|
3839 ++nfa_ll_index; |
ec72bb4a0fc2
updated for version 7.3.1106
Bram Moolenaar <bram@vim.org>
parents:
4716
diff
changeset
|
3840 if (nfa_listid <= nfa_alt_listid) |
ec72bb4a0fc2
updated for version 7.3.1106
Bram Moolenaar <bram@vim.org>
parents:
4716
diff
changeset
|
3841 nfa_listid = nfa_alt_listid; |
ec72bb4a0fc2
updated for version 7.3.1106
Bram Moolenaar <bram@vim.org>
parents:
4716
diff
changeset
|
3842 } |
ec72bb4a0fc2
updated for version 7.3.1106
Bram Moolenaar <bram@vim.org>
parents:
4716
diff
changeset
|
3843 |
ec72bb4a0fc2
updated for version 7.3.1106
Bram Moolenaar <bram@vim.org>
parents:
4716
diff
changeset
|
3844 /* Call nfa_regmatch() to check if the current concat matches at this |
ec72bb4a0fc2
updated for version 7.3.1106
Bram Moolenaar <bram@vim.org>
parents:
4716
diff
changeset
|
3845 * position. The concat ends with the node NFA_END_INVISIBLE */ |
4716
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3846 nfa_endp = endposp; |
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3847 result = nfa_regmatch(prog, state->out, submatch, m); |
4718
ec72bb4a0fc2
updated for version 7.3.1106
Bram Moolenaar <bram@vim.org>
parents:
4716
diff
changeset
|
3848 |
ec72bb4a0fc2
updated for version 7.3.1106
Bram Moolenaar <bram@vim.org>
parents:
4716
diff
changeset
|
3849 if (need_restore) |
ec72bb4a0fc2
updated for version 7.3.1106
Bram Moolenaar <bram@vim.org>
parents:
4716
diff
changeset
|
3850 nfa_restore_listids(prog, *listids); |
ec72bb4a0fc2
updated for version 7.3.1106
Bram Moolenaar <bram@vim.org>
parents:
4716
diff
changeset
|
3851 else |
ec72bb4a0fc2
updated for version 7.3.1106
Bram Moolenaar <bram@vim.org>
parents:
4716
diff
changeset
|
3852 { |
ec72bb4a0fc2
updated for version 7.3.1106
Bram Moolenaar <bram@vim.org>
parents:
4716
diff
changeset
|
3853 --nfa_ll_index; |
ec72bb4a0fc2
updated for version 7.3.1106
Bram Moolenaar <bram@vim.org>
parents:
4716
diff
changeset
|
3854 nfa_alt_listid = nfa_listid; |
ec72bb4a0fc2
updated for version 7.3.1106
Bram Moolenaar <bram@vim.org>
parents:
4716
diff
changeset
|
3855 } |
4716
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3856 |
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3857 /* restore position in input text */ |
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3858 reginput = save_reginput; |
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3859 regline = save_regline; |
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3860 reglnum = save_reglnum; |
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3861 nfa_match = save_nfa_match; |
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3862 nfa_endp = save_nfa_endp; |
4718
ec72bb4a0fc2
updated for version 7.3.1106
Bram Moolenaar <bram@vim.org>
parents:
4716
diff
changeset
|
3863 nfa_listid = save_nfa_listid; |
4716
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3864 |
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3865 #ifdef ENABLE_LOG |
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3866 log_fd = fopen(NFA_REGEXP_RUN_LOG, "a"); |
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3867 if (log_fd != NULL) |
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3868 { |
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3869 fprintf(log_fd, "****************************\n"); |
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3870 fprintf(log_fd, "FINISHED RUNNING nfa_regmatch() recursively\n"); |
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3871 fprintf(log_fd, "MATCH = %s\n", result == TRUE ? "OK" : "FALSE"); |
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3872 fprintf(log_fd, "****************************\n"); |
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3873 } |
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3874 else |
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3875 { |
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3876 EMSG(_("Could not open temporary log file for writing, displaying on stderr ... ")); |
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3877 log_fd = stderr; |
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3878 } |
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3879 #endif |
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3880 |
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3881 return result; |
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3882 } |
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3883 |
4726
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
3884 static int failure_chance __ARGS((nfa_state_T *state, int depth)); |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
3885 |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
3886 /* |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
3887 * Estimate the chance of a match with "state" failing. |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
3888 * NFA_ANY: 1 |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
3889 * specific character: 99 |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
3890 */ |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
3891 static int |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
3892 failure_chance(state, depth) |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
3893 nfa_state_T *state; |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
3894 int depth; |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
3895 { |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
3896 int c = state->c; |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
3897 int l, r; |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
3898 |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
3899 /* detect looping */ |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
3900 if (depth > 4) |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
3901 return 1; |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
3902 |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
3903 if (c == NFA_SPLIT) |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
3904 { |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
3905 if (state->out->c == NFA_SPLIT || state->out1->c == NFA_SPLIT) |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
3906 return 1; |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
3907 l = failure_chance(state->out, depth + 1); |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
3908 r = failure_chance(state->out1, depth + 1); |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
3909 return l < r ? l : r; |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
3910 } |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
3911 if (c == NFA_ANY) |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
3912 return 1; |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
3913 if (c > 0) |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
3914 return 99; |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
3915 if ((c >= NFA_MOPEN && c <= NFA_MOPEN9) |
4734
532c31f9e92f
updated for version 7.3.1114
Bram Moolenaar <bram@vim.org>
parents:
4732
diff
changeset
|
3916 #ifdef FEAT_SYN_HL |
4726
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
3917 || (c >= NFA_ZOPEN && c <= NFA_ZOPEN9) |
4734
532c31f9e92f
updated for version 7.3.1114
Bram Moolenaar <bram@vim.org>
parents:
4732
diff
changeset
|
3918 #endif |
4726
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
3919 || c == NFA_NOPEN) |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
3920 return failure_chance(state->out, depth + 1); |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
3921 /* something else */ |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
3922 return 50; |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
3923 } |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
3924 |
4716
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3925 /* |
4444 | 3926 * Main matching routine. |
3927 * | |
3928 * Run NFA to determine whether it matches reginput. | |
3929 * | |
4694
efc4fb311d5d
updated for version 7.3.1094
Bram Moolenaar <bram@vim.org>
parents:
4692
diff
changeset
|
3930 * When "nfa_endp" is not NULL it is a required end-of-match position. |
4682
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3931 * |
4444 | 3932 * Return TRUE if there is a match, FALSE otherwise. |
3933 * Note: Caller must ensure that: start != NULL. | |
3934 */ | |
3935 static int | |
4712
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
3936 nfa_regmatch(prog, start, submatch, m) |
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
3937 nfa_regprog_T *prog; |
4444 | 3938 nfa_state_T *start; |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3939 regsubs_T *submatch; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3940 regsubs_T *m; |
4444 | 3941 { |
3942 int result; | |
3943 int size = 0; | |
3944 int flag = 0; | |
4539
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3945 int go_to_nextline = FALSE; |
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3946 nfa_thread_T *t; |
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3947 nfa_list_T list[3]; |
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3948 nfa_list_T *listtbl[2][2]; |
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3949 nfa_list_T *ll; |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
3950 int listidx; |
4539
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3951 nfa_list_T *thislist; |
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3952 nfa_list_T *nextlist; |
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3953 nfa_list_T *neglist; |
4444 | 3954 int *listids = NULL; |
4726
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
3955 nfa_state_T *add_state; |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
3956 int add_count; |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
3957 int add_off; |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
3958 garray_T pimlist; |
4460 | 3959 #ifdef NFA_REGEXP_DEBUG_LOG |
4531
1be43c095aff
updated for version 7.3.1013
Bram Moolenaar <bram@vim.org>
parents:
4529
diff
changeset
|
3960 FILE *debug = fopen(NFA_REGEXP_DEBUG_LOG, "a"); |
4444 | 3961 |
3962 if (debug == NULL) | |
3963 { | |
4531
1be43c095aff
updated for version 7.3.1013
Bram Moolenaar <bram@vim.org>
parents:
4529
diff
changeset
|
3964 EMSG2(_("(NFA) COULD NOT OPEN %s !"), NFA_REGEXP_DEBUG_LOG); |
4444 | 3965 return FALSE; |
3966 } | |
3967 #endif | |
4561
4d81fdda8f35
updated for version 7.3.1028
Bram Moolenaar <bram@vim.org>
parents:
4559
diff
changeset
|
3968 nfa_match = FALSE; |
4726
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
3969 ga_init2(&pimlist, sizeof(nfa_pim_T), 5); |
4444 | 3970 |
4563
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3971 /* Allocate memory for the lists of nodes. */ |
4539
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3972 size = (nstate + 1) * sizeof(nfa_thread_T); |
4647
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3973 list[0].t = (nfa_thread_T *)lalloc_clear(size, TRUE); |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3974 list[0].len = nstate + 1; |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3975 list[1].t = (nfa_thread_T *)lalloc_clear(size, TRUE); |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3976 list[1].len = nstate + 1; |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3977 list[2].t = (nfa_thread_T *)lalloc_clear(size, TRUE); |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3978 list[2].len = nstate + 1; |
4444 | 3979 if (list[0].t == NULL || list[1].t == NULL || list[2].t == NULL) |
3980 goto theend; | |
3981 | |
3982 #ifdef ENABLE_LOG | |
4531
1be43c095aff
updated for version 7.3.1013
Bram Moolenaar <bram@vim.org>
parents:
4529
diff
changeset
|
3983 log_fd = fopen(NFA_REGEXP_RUN_LOG, "a"); |
4444 | 3984 if (log_fd != NULL) |
3985 { | |
3986 fprintf(log_fd, "**********************************\n"); | |
3987 nfa_set_code(start->c); | |
3988 fprintf(log_fd, " RUNNING nfa_regmatch() starting with state %d, code %s\n", | |
3989 abs(start->id), code); | |
3990 fprintf(log_fd, "**********************************\n"); | |
3991 } | |
3992 else | |
3993 { | |
3994 EMSG(_("Could not open temporary log file for writing, displaying on stderr ... ")); | |
3995 log_fd = stderr; | |
3996 } | |
3997 #endif | |
3998 | |
3999 thislist = &list[0]; | |
4000 thislist->n = 0; | |
4001 nextlist = &list[1]; | |
4002 nextlist->n = 0; | |
4003 neglist = &list[2]; | |
4004 neglist->n = 0; | |
4005 #ifdef ENABLE_LOG | |
4006 fprintf(log_fd, "(---) STARTSTATE\n"); | |
4007 #endif | |
4718
ec72bb4a0fc2
updated for version 7.3.1106
Bram Moolenaar <bram@vim.org>
parents:
4716
diff
changeset
|
4008 thislist->id = nfa_listid + 1; |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4009 addstate(thislist, start, m, 0); |
4444 | 4010 |
4011 /* There are two cases when the NFA advances: 1. input char matches the | |
4012 * NFA node and 2. input char does not match the NFA node, but the next | |
4013 * node is NFA_NOT. The following macro calls addstate() according to | |
4014 * these rules. It is used A LOT, so use the "listtbl" table for speed */ | |
4015 listtbl[0][0] = NULL; | |
4016 listtbl[0][1] = neglist; | |
4017 listtbl[1][0] = nextlist; | |
4018 listtbl[1][1] = NULL; | |
4726
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4019 #define ADD_POS_NEG_STATE(state) \ |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4020 ll = listtbl[result ? 1 : 0][state->negated]; \ |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4021 if (ll != NULL) { \ |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4022 add_state = state->out; \ |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4023 add_off = clen; \ |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4024 } |
4444 | 4025 |
4026 /* | |
4027 * Run for each character. | |
4028 */ | |
4515
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
4029 for (;;) |
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
4030 { |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4031 int curc; |
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4032 int clen; |
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4033 |
4444 | 4034 #ifdef FEAT_MBYTE |
4035 if (has_mbyte) | |
4036 { | |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4037 curc = (*mb_ptr2char)(reginput); |
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4038 clen = (*mb_ptr2len)(reginput); |
4444 | 4039 } |
4040 else | |
4041 #endif | |
4042 { | |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4043 curc = *reginput; |
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4044 clen = 1; |
4444 | 4045 } |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4046 if (curc == NUL) |
4515
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
4047 { |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4048 clen = 0; |
4515
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
4049 go_to_nextline = FALSE; |
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
4050 } |
4444 | 4051 |
4052 /* swap lists */ | |
4053 thislist = &list[flag]; | |
4054 nextlist = &list[flag ^= 1]; | |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4055 nextlist->n = 0; /* clear nextlist */ |
4444 | 4056 listtbl[1][0] = nextlist; |
4718
ec72bb4a0fc2
updated for version 7.3.1106
Bram Moolenaar <bram@vim.org>
parents:
4716
diff
changeset
|
4057 ++nfa_listid; |
ec72bb4a0fc2
updated for version 7.3.1106
Bram Moolenaar <bram@vim.org>
parents:
4716
diff
changeset
|
4058 thislist->id = nfa_listid; |
ec72bb4a0fc2
updated for version 7.3.1106
Bram Moolenaar <bram@vim.org>
parents:
4716
diff
changeset
|
4059 nextlist->id = nfa_listid + 1; |
ec72bb4a0fc2
updated for version 7.3.1106
Bram Moolenaar <bram@vim.org>
parents:
4716
diff
changeset
|
4060 neglist->id = nfa_listid + 1; |
4444 | 4061 |
4726
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4062 pimlist.ga_len = 0; |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4063 |
4444 | 4064 #ifdef ENABLE_LOG |
4065 fprintf(log_fd, "------------------------------------------\n"); | |
4066 fprintf(log_fd, ">>> Reginput is \"%s\"\n", reginput); | |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4067 fprintf(log_fd, ">>> Advanced one character ... Current char is %c (code %d) \n", curc, (int)curc); |
4444 | 4068 fprintf(log_fd, ">>> Thislist has %d states available: ", thislist->n); |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4069 { |
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4070 int i; |
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4071 |
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4072 for (i = 0; i < thislist->n; i++) |
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4073 fprintf(log_fd, "%d ", abs(thislist->t[i].state->id)); |
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4074 } |
4444 | 4075 fprintf(log_fd, "\n"); |
4076 #endif | |
4077 | |
4460 | 4078 #ifdef NFA_REGEXP_DEBUG_LOG |
4444 | 4079 fprintf(debug, "\n-------------------\n"); |
4080 #endif | |
4480 | 4081 /* |
4082 * If the state lists are empty we can stop. | |
4083 */ | |
4084 if (thislist->n == 0 && neglist->n == 0) | |
4085 break; | |
4444 | 4086 |
4087 /* compute nextlist */ | |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4088 for (listidx = 0; listidx < thislist->n || neglist->n > 0; ++listidx) |
4444 | 4089 { |
4090 if (neglist->n > 0) | |
4091 { | |
4092 t = &neglist->t[0]; | |
4468 | 4093 neglist->n--; |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4094 listidx--; |
4444 | 4095 } |
4096 else | |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4097 t = &thislist->t[listidx]; |
4444 | 4098 |
4460 | 4099 #ifdef NFA_REGEXP_DEBUG_LOG |
4444 | 4100 nfa_set_code(t->state->c); |
4101 fprintf(debug, "%s, ", code); | |
4102 #endif | |
4103 #ifdef ENABLE_LOG | |
4657
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
4104 { |
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
4105 int col; |
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
4106 |
4690
9d97a0c045ef
updated for version 7.3.1092
Bram Moolenaar <bram@vim.org>
parents:
4688
diff
changeset
|
4107 if (t->subs.norm.in_use <= 0) |
4657
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
4108 col = -1; |
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
4109 else if (REG_MULTI) |
4690
9d97a0c045ef
updated for version 7.3.1092
Bram Moolenaar <bram@vim.org>
parents:
4688
diff
changeset
|
4110 col = t->subs.norm.list.multi[0].start.col; |
4657
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
4111 else |
4690
9d97a0c045ef
updated for version 7.3.1092
Bram Moolenaar <bram@vim.org>
parents:
4688
diff
changeset
|
4112 col = (int)(t->subs.norm.list.line[0].start - regline); |
4657
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
4113 nfa_set_code(t->state->c); |
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
4114 fprintf(log_fd, "(%d) char %d %s (start col %d) ... \n", |
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
4115 abs(t->state->id), (int)t->state->c, code, col); |
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
4116 } |
4444 | 4117 #endif |
4118 | |
4119 /* | |
4120 * Handle the possible codes of the current state. | |
4121 * The most important is NFA_MATCH. | |
4122 */ | |
4726
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4123 add_state = NULL; |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4124 add_count = 0; |
4444 | 4125 switch (t->state->c) |
4126 { | |
4127 case NFA_MATCH: | |
4567
96c1a7850097
updated for version 7.3.1031
Bram Moolenaar <bram@vim.org>
parents:
4565
diff
changeset
|
4128 { |
4561
4d81fdda8f35
updated for version 7.3.1028
Bram Moolenaar <bram@vim.org>
parents:
4559
diff
changeset
|
4129 nfa_match = TRUE; |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4130 copy_sub(&submatch->norm, &t->subs.norm); |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4131 #ifdef FEAT_SYN_HL |
4712
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
4132 if (nfa_has_zsubexpr) |
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
4133 copy_sub(&submatch->synt, &t->subs.synt); |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4134 #endif |
4444 | 4135 #ifdef ENABLE_LOG |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4136 log_subsexpr(&t->subs); |
4444 | 4137 #endif |
4515
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
4138 /* Found the left-most longest match, do not look at any other |
4553
7b835b2969af
updated for version 7.3.1024
Bram Moolenaar <bram@vim.org>
parents:
4551
diff
changeset
|
4139 * states at this position. When the list of states is going |
7b835b2969af
updated for version 7.3.1024
Bram Moolenaar <bram@vim.org>
parents:
4551
diff
changeset
|
4140 * to be empty quit without advancing, so that "reginput" is |
7b835b2969af
updated for version 7.3.1024
Bram Moolenaar <bram@vim.org>
parents:
4551
diff
changeset
|
4141 * correct. */ |
7b835b2969af
updated for version 7.3.1024
Bram Moolenaar <bram@vim.org>
parents:
4551
diff
changeset
|
4142 if (nextlist->n == 0 && neglist->n == 0) |
7b835b2969af
updated for version 7.3.1024
Bram Moolenaar <bram@vim.org>
parents:
4551
diff
changeset
|
4143 clen = 0; |
4515
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
4144 goto nextchar; |
4567
96c1a7850097
updated for version 7.3.1031
Bram Moolenaar <bram@vim.org>
parents:
4565
diff
changeset
|
4145 } |
4444 | 4146 |
4147 case NFA_END_INVISIBLE: | |
4716
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
4148 /* |
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
4149 * This is only encountered after a NFA_START_INVISIBLE or |
4682
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
4150 * NFA_START_INVISIBLE_BEFORE node. |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
4151 * They surround a zero-width group, used with "\@=", "\&", |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
4152 * "\@!", "\@<=" and "\@<!". |
4444 | 4153 * If we got here, it means that the current "invisible" group |
4154 * finished successfully, so return control to the parent | |
4716
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
4155 * nfa_regmatch(). For a look-behind match only when it ends |
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
4156 * in the position in "nfa_endp". |
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
4157 * Submatches are stored in *m, and used in the parent call. |
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
4158 */ |
4682
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
4159 #ifdef ENABLE_LOG |
4716
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
4160 if (nfa_endp != NULL) |
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
4161 { |
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
4162 if (REG_MULTI) |
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
4163 fprintf(log_fd, "Current lnum: %d, endp lnum: %d; current col: %d, endp col: %d\n", |
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
4164 (int)reglnum, |
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
4165 (int)nfa_endp->se_u.pos.lnum, |
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
4166 (int)(reginput - regline), |
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
4167 nfa_endp->se_u.pos.col); |
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
4168 else |
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
4169 fprintf(log_fd, "Current col: %d, endp col: %d\n", |
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
4170 (int)(reginput - regline), |
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
4171 (int)(nfa_endp->se_u.ptr - reginput)); |
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
4172 } |
4682
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
4173 #endif |
4716
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
4174 /* It's only a match if it ends at "nfa_endp" */ |
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
4175 if (nfa_endp != NULL && (REG_MULTI |
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
4176 ? (reglnum != nfa_endp->se_u.pos.lnum |
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
4177 || (int)(reginput - regline) |
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
4178 != nfa_endp->se_u.pos.col) |
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
4179 : reginput != nfa_endp->se_u.ptr)) |
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
4180 break; |
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
4181 |
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
4182 /* do not set submatches for \@! */ |
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
4183 if (!t->state->negated) |
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
4184 { |
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
4185 copy_sub(&m->norm, &t->subs.norm); |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4186 #ifdef FEAT_SYN_HL |
4716
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
4187 if (nfa_has_zsubexpr) |
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
4188 copy_sub(&m->synt, &t->subs.synt); |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4189 #endif |
4444 | 4190 } |
4716
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
4191 nfa_match = TRUE; |
4444 | 4192 break; |
4193 | |
4194 case NFA_START_INVISIBLE: | |
4682
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
4195 case NFA_START_INVISIBLE_BEFORE: |
4726
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4196 /* If invisible match has a higher chance to fail, do it |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4197 * right away. Otherwise postpone it until what follows is |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4198 * matching and causes addstate(nextlist, ..) to be called. |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4199 * This is indicated by the "pim" field. */ |
4444 | 4200 { |
4726
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4201 nfa_pim_T *pim; |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4202 int cout = t->state->out1->out->c; |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4203 |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4204 /* Do it directly when what follows is possibly end of |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4205 * match (closing paren). |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4206 * Postpone when it is \@<= or \@<!, these are expensive. |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4207 * TODO: remove the check for t->pim and check multiple |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4208 * where it's used? |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4209 * Otherwise first do the one that has the highest chance |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4210 * of failing. */ |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4211 if ((cout >= NFA_MCLOSE && cout <= NFA_MCLOSE9) |
4734
532c31f9e92f
updated for version 7.3.1114
Bram Moolenaar <bram@vim.org>
parents:
4732
diff
changeset
|
4212 #ifdef FEAT_SYN_HL |
4726
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4213 || (cout >= NFA_ZCLOSE && cout <= NFA_ZCLOSE9) |
4734
532c31f9e92f
updated for version 7.3.1114
Bram Moolenaar <bram@vim.org>
parents:
4732
diff
changeset
|
4214 #endif |
4726
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4215 || cout == NFA_NCLOSE |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4216 || t->pim != NULL |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4217 || (t->state->c != NFA_START_INVISIBLE_BEFORE |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4218 && failure_chance(t->state->out1->out, 0) |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4219 < failure_chance(t->state->out, 0))) |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4220 { |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4221 /* |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4222 * First try matching the invisible match, then what |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4223 * follows. |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4224 */ |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4225 result = recursive_regmatch(t->state, prog, |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4226 submatch, m, &listids); |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4227 |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4228 /* for \@! it is a match when result is FALSE */ |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4229 if (result != t->state->negated) |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4230 { |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4231 /* Copy submatch info from the recursive call */ |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4232 copy_sub_off(&t->subs.norm, &m->norm); |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4233 #ifdef FEAT_SYN_HL |
4726
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4234 copy_sub_off(&t->subs.synt, &m->synt); |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4235 #endif |
4657
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
4236 |
4726
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4237 /* t->state->out1 is the corresponding |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4238 * END_INVISIBLE node; Add its out to the current |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4239 * list (zero-width match). */ |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4240 addstate_here(thislist, t->state->out1->out, |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4241 &t->subs, t->pim, &listidx); |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4242 } |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4243 } |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4244 else |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4245 { |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4246 /* |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4247 * First try matching what follows at the current |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4248 * position. Only if a match is found, addstate() is |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4249 * called, then verify the invisible match matches. |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4250 * Add a nfa_pim_T to the following states, it |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4251 * contains info about the invisible match. |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4252 */ |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4253 if (ga_grow(&pimlist, 1) == FAIL) |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4254 goto theend; |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4255 pim = (nfa_pim_T *)pimlist.ga_data + pimlist.ga_len; |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4256 ++pimlist.ga_len; |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4257 pim->state = t->state; |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4258 pim->pim = NULL; |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4259 pim->result = NFA_PIM_TODO; |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4260 |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4261 /* t->state->out1 is the corresponding END_INVISIBLE |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4262 * node; Add its out to the current list (zero-width |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4263 * match). */ |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4264 addstate_here(thislist, t->state->out1->out, &t->subs, |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4265 pim, &listidx); |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4266 } |
4444 | 4267 } |
4268 break; | |
4269 | |
4270 case NFA_BOL: | |
4271 if (reginput == regline) | |
4726
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4272 addstate_here(thislist, t->state->out, &t->subs, |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4273 t->pim, &listidx); |
4444 | 4274 break; |
4275 | |
4276 case NFA_EOL: | |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4277 if (curc == NUL) |
4726
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4278 addstate_here(thislist, t->state->out, &t->subs, |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4279 t->pim, &listidx); |
4444 | 4280 break; |
4281 | |
4282 case NFA_BOW: | |
4283 { | |
4284 int bow = TRUE; | |
4285 | |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4286 if (curc == NUL) |
4444 | 4287 bow = FALSE; |
4288 #ifdef FEAT_MBYTE | |
4289 else if (has_mbyte) | |
4290 { | |
4291 int this_class; | |
4292 | |
4293 /* Get class of current and previous char (if it exists). */ | |
4503 | 4294 this_class = mb_get_class_buf(reginput, reg_buf); |
4444 | 4295 if (this_class <= 1) |
4296 bow = FALSE; | |
4297 else if (reg_prev_class() == this_class) | |
4298 bow = FALSE; | |
4299 } | |
4300 #endif | |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4301 else if (!vim_iswordc_buf(curc, reg_buf) |
4503 | 4302 || (reginput > regline |
4303 && vim_iswordc_buf(reginput[-1], reg_buf))) | |
4444 | 4304 bow = FALSE; |
4305 if (bow) | |
4726
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4306 addstate_here(thislist, t->state->out, &t->subs, |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4307 t->pim, &listidx); |
4444 | 4308 break; |
4309 } | |
4310 | |
4311 case NFA_EOW: | |
4312 { | |
4313 int eow = TRUE; | |
4314 | |
4315 if (reginput == regline) | |
4316 eow = FALSE; | |
4317 #ifdef FEAT_MBYTE | |
4318 else if (has_mbyte) | |
4319 { | |
4320 int this_class, prev_class; | |
4321 | |
4322 /* Get class of current and previous char (if it exists). */ | |
4503 | 4323 this_class = mb_get_class_buf(reginput, reg_buf); |
4444 | 4324 prev_class = reg_prev_class(); |
4325 if (this_class == prev_class | |
4326 || prev_class == 0 || prev_class == 1) | |
4327 eow = FALSE; | |
4328 } | |
4329 #endif | |
4503 | 4330 else if (!vim_iswordc_buf(reginput[-1], reg_buf) |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4331 || (reginput[0] != NUL |
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4332 && vim_iswordc_buf(curc, reg_buf))) |
4444 | 4333 eow = FALSE; |
4334 if (eow) | |
4726
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4335 addstate_here(thislist, t->state->out, &t->subs, |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4336 t->pim, &listidx); |
4444 | 4337 break; |
4338 } | |
4339 | |
4671
b3c59716e700
updated for version 7.3.1083
Bram Moolenaar <bram@vim.org>
parents:
4669
diff
changeset
|
4340 case NFA_BOF: |
b3c59716e700
updated for version 7.3.1083
Bram Moolenaar <bram@vim.org>
parents:
4669
diff
changeset
|
4341 if (reglnum == 0 && reginput == regline |
b3c59716e700
updated for version 7.3.1083
Bram Moolenaar <bram@vim.org>
parents:
4669
diff
changeset
|
4342 && (!REG_MULTI || reg_firstlnum == 1)) |
4726
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4343 addstate_here(thislist, t->state->out, &t->subs, |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4344 t->pim, &listidx); |
4671
b3c59716e700
updated for version 7.3.1083
Bram Moolenaar <bram@vim.org>
parents:
4669
diff
changeset
|
4345 break; |
b3c59716e700
updated for version 7.3.1083
Bram Moolenaar <bram@vim.org>
parents:
4669
diff
changeset
|
4346 |
b3c59716e700
updated for version 7.3.1083
Bram Moolenaar <bram@vim.org>
parents:
4669
diff
changeset
|
4347 case NFA_EOF: |
b3c59716e700
updated for version 7.3.1083
Bram Moolenaar <bram@vim.org>
parents:
4669
diff
changeset
|
4348 if (reglnum == reg_maxline && curc == NUL) |
4726
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4349 addstate_here(thislist, t->state->out, &t->subs, |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4350 t->pim, &listidx); |
4671
b3c59716e700
updated for version 7.3.1083
Bram Moolenaar <bram@vim.org>
parents:
4669
diff
changeset
|
4351 break; |
b3c59716e700
updated for version 7.3.1083
Bram Moolenaar <bram@vim.org>
parents:
4669
diff
changeset
|
4352 |
4527
55bcaa1d2749
updated for version 7.3.1011
Bram Moolenaar <bram@vim.org>
parents:
4525
diff
changeset
|
4353 #ifdef FEAT_MBYTE |
4444 | 4354 case NFA_COMPOSING: |
4527
55bcaa1d2749
updated for version 7.3.1011
Bram Moolenaar <bram@vim.org>
parents:
4525
diff
changeset
|
4355 { |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4356 int mc = curc; |
4531
1be43c095aff
updated for version 7.3.1013
Bram Moolenaar <bram@vim.org>
parents:
4529
diff
changeset
|
4357 int len = 0; |
1be43c095aff
updated for version 7.3.1013
Bram Moolenaar <bram@vim.org>
parents:
4529
diff
changeset
|
4358 nfa_state_T *end; |
1be43c095aff
updated for version 7.3.1013
Bram Moolenaar <bram@vim.org>
parents:
4529
diff
changeset
|
4359 nfa_state_T *sta; |
4547
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4360 int cchars[MAX_MCO]; |
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4361 int ccount = 0; |
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4362 int j; |
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4363 |
4444 | 4364 sta = t->state->out; |
4527
55bcaa1d2749
updated for version 7.3.1011
Bram Moolenaar <bram@vim.org>
parents:
4525
diff
changeset
|
4365 len = 0; |
4535
45f97c349537
updated for version 7.3.1015
Bram Moolenaar <bram@vim.org>
parents:
4533
diff
changeset
|
4366 if (utf_iscomposing(sta->c)) |
45f97c349537
updated for version 7.3.1015
Bram Moolenaar <bram@vim.org>
parents:
4533
diff
changeset
|
4367 { |
45f97c349537
updated for version 7.3.1015
Bram Moolenaar <bram@vim.org>
parents:
4533
diff
changeset
|
4368 /* Only match composing character(s), ignore base |
45f97c349537
updated for version 7.3.1015
Bram Moolenaar <bram@vim.org>
parents:
4533
diff
changeset
|
4369 * character. Used for ".{composing}" and "{composing}" |
45f97c349537
updated for version 7.3.1015
Bram Moolenaar <bram@vim.org>
parents:
4533
diff
changeset
|
4370 * (no preceding character). */ |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4371 len += mb_char2len(mc); |
4535
45f97c349537
updated for version 7.3.1015
Bram Moolenaar <bram@vim.org>
parents:
4533
diff
changeset
|
4372 } |
4551
f0c37f5cf4ea
updated for version 7.3.1023
Bram Moolenaar <bram@vim.org>
parents:
4549
diff
changeset
|
4373 if (ireg_icombine && len == 0) |
4444 | 4374 { |
4535
45f97c349537
updated for version 7.3.1015
Bram Moolenaar <bram@vim.org>
parents:
4533
diff
changeset
|
4375 /* If \Z was present, then ignore composing characters. |
45f97c349537
updated for version 7.3.1015
Bram Moolenaar <bram@vim.org>
parents:
4533
diff
changeset
|
4376 * When ignoring the base character this always matches. */ |
4529
432a6b8c7d93
updated for version 7.3.1012
Bram Moolenaar <bram@vim.org>
parents:
4527
diff
changeset
|
4377 /* TODO: How about negated? */ |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4378 if (len == 0 && sta->c != curc) |
4529
432a6b8c7d93
updated for version 7.3.1012
Bram Moolenaar <bram@vim.org>
parents:
4527
diff
changeset
|
4379 result = FAIL; |
4547
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4380 else |
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4381 result = OK; |
4529
432a6b8c7d93
updated for version 7.3.1012
Bram Moolenaar <bram@vim.org>
parents:
4527
diff
changeset
|
4382 while (sta->c != NFA_END_COMPOSING) |
432a6b8c7d93
updated for version 7.3.1012
Bram Moolenaar <bram@vim.org>
parents:
4527
diff
changeset
|
4383 sta = sta->out; |
4444 | 4384 } |
4547
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4385 |
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4386 /* Check base character matches first, unless ignored. */ |
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4387 else if (len > 0 || mc == sta->c) |
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4388 { |
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4389 if (len == 0) |
4529
432a6b8c7d93
updated for version 7.3.1012
Bram Moolenaar <bram@vim.org>
parents:
4527
diff
changeset
|
4390 { |
432a6b8c7d93
updated for version 7.3.1012
Bram Moolenaar <bram@vim.org>
parents:
4527
diff
changeset
|
4391 len += mb_char2len(mc); |
432a6b8c7d93
updated for version 7.3.1012
Bram Moolenaar <bram@vim.org>
parents:
4527
diff
changeset
|
4392 sta = sta->out; |
432a6b8c7d93
updated for version 7.3.1012
Bram Moolenaar <bram@vim.org>
parents:
4527
diff
changeset
|
4393 } |
4444 | 4394 |
4547
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4395 /* We don't care about the order of composing characters. |
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4396 * Get them into cchars[] first. */ |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4397 while (len < clen) |
4547
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4398 { |
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4399 mc = mb_ptr2char(reginput + len); |
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4400 cchars[ccount++] = mc; |
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4401 len += mb_char2len(mc); |
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4402 if (ccount == MAX_MCO) |
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4403 break; |
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4404 } |
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4405 |
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4406 /* Check that each composing char in the pattern matches a |
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4407 * composing char in the text. We do not check if all |
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4408 * composing chars are matched. */ |
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4409 result = OK; |
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4410 while (sta->c != NFA_END_COMPOSING) |
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4411 { |
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4412 for (j = 0; j < ccount; ++j) |
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4413 if (cchars[j] == sta->c) |
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4414 break; |
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4415 if (j == ccount) |
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4416 { |
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4417 result = FAIL; |
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4418 break; |
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4419 } |
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4420 sta = sta->out; |
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4421 } |
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4422 } |
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4423 else |
4525
36ddcf4cecbc
updated for version 7.3.1010
Bram Moolenaar <bram@vim.org>
parents:
4517
diff
changeset
|
4424 result = FAIL; |
4547
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4425 |
4527
55bcaa1d2749
updated for version 7.3.1011
Bram Moolenaar <bram@vim.org>
parents:
4525
diff
changeset
|
4426 end = t->state->out1; /* NFA_END_COMPOSING */ |
4444 | 4427 ADD_POS_NEG_STATE(end); |
4428 break; | |
4527
55bcaa1d2749
updated for version 7.3.1011
Bram Moolenaar <bram@vim.org>
parents:
4525
diff
changeset
|
4429 } |
55bcaa1d2749
updated for version 7.3.1011
Bram Moolenaar <bram@vim.org>
parents:
4525
diff
changeset
|
4430 #endif |
4444 | 4431 |
4432 case NFA_NEWL: | |
4555
b2946c06d1b6
updated for version 7.3.1025
Bram Moolenaar <bram@vim.org>
parents:
4553
diff
changeset
|
4433 if (curc == NUL && !reg_line_lbr && REG_MULTI |
b2946c06d1b6
updated for version 7.3.1025
Bram Moolenaar <bram@vim.org>
parents:
4553
diff
changeset
|
4434 && reglnum <= reg_maxline) |
4444 | 4435 { |
4515
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
4436 go_to_nextline = TRUE; |
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
4437 /* Pass -1 for the offset, which means taking the position |
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
4438 * at the start of the next line. */ |
4726
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4439 ll = nextlist; |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4440 add_state = t->state->out; |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4441 add_off = -1; |
4444 | 4442 } |
4555
b2946c06d1b6
updated for version 7.3.1025
Bram Moolenaar <bram@vim.org>
parents:
4553
diff
changeset
|
4443 else if (curc == '\n' && reg_line_lbr) |
b2946c06d1b6
updated for version 7.3.1025
Bram Moolenaar <bram@vim.org>
parents:
4553
diff
changeset
|
4444 { |
b2946c06d1b6
updated for version 7.3.1025
Bram Moolenaar <bram@vim.org>
parents:
4553
diff
changeset
|
4445 /* match \n as if it is an ordinary character */ |
4726
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4446 ll = nextlist; |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4447 add_state = t->state->out; |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4448 add_off = 1; |
4555
b2946c06d1b6
updated for version 7.3.1025
Bram Moolenaar <bram@vim.org>
parents:
4553
diff
changeset
|
4449 } |
4444 | 4450 break; |
4451 | |
4452 case NFA_CLASS_ALNUM: | |
4453 case NFA_CLASS_ALPHA: | |
4454 case NFA_CLASS_BLANK: | |
4455 case NFA_CLASS_CNTRL: | |
4456 case NFA_CLASS_DIGIT: | |
4457 case NFA_CLASS_GRAPH: | |
4458 case NFA_CLASS_LOWER: | |
4459 case NFA_CLASS_PRINT: | |
4460 case NFA_CLASS_PUNCT: | |
4461 case NFA_CLASS_SPACE: | |
4462 case NFA_CLASS_UPPER: | |
4463 case NFA_CLASS_XDIGIT: | |
4464 case NFA_CLASS_TAB: | |
4465 case NFA_CLASS_RETURN: | |
4466 case NFA_CLASS_BACKSPACE: | |
4467 case NFA_CLASS_ESCAPE: | |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4468 result = check_char_class(t->state->c, curc); |
4444 | 4469 ADD_POS_NEG_STATE(t->state); |
4470 break; | |
4471 | |
4472 case NFA_END_NEG_RANGE: | |
4473 /* This follows a series of negated nodes, like: | |
4474 * CHAR(x), NFA_NOT, CHAR(y), NFA_NOT etc. */ | |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4475 if (curc > 0) |
4726
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4476 { |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4477 ll = nextlist; |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4478 add_state = t->state->out; |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4479 add_off = clen; |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4480 } |
4444 | 4481 break; |
4482 | |
4483 case NFA_ANY: | |
4515
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
4484 /* Any char except '\0', (end of input) does not match. */ |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4485 if (curc > 0) |
4726
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4486 { |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4487 ll = nextlist; |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4488 add_state = t->state->out; |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4489 add_off = clen; |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4490 } |
4444 | 4491 break; |
4492 | |
4493 /* | |
4494 * Character classes like \a for alpha, \d for digit etc. | |
4495 */ | |
4496 case NFA_IDENT: /* \i */ | |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4497 result = vim_isIDc(curc); |
4444 | 4498 ADD_POS_NEG_STATE(t->state); |
4499 break; | |
4500 | |
4501 case NFA_SIDENT: /* \I */ | |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4502 result = !VIM_ISDIGIT(curc) && vim_isIDc(curc); |
4444 | 4503 ADD_POS_NEG_STATE(t->state); |
4504 break; | |
4505 | |
4506 case NFA_KWORD: /* \k */ | |
4503 | 4507 result = vim_iswordp_buf(reginput, reg_buf); |
4444 | 4508 ADD_POS_NEG_STATE(t->state); |
4509 break; | |
4510 | |
4511 case NFA_SKWORD: /* \K */ | |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4512 result = !VIM_ISDIGIT(curc) |
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4513 && vim_iswordp_buf(reginput, reg_buf); |
4444 | 4514 ADD_POS_NEG_STATE(t->state); |
4515 break; | |
4516 | |
4517 case NFA_FNAME: /* \f */ | |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4518 result = vim_isfilec(curc); |
4444 | 4519 ADD_POS_NEG_STATE(t->state); |
4520 break; | |
4521 | |
4522 case NFA_SFNAME: /* \F */ | |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4523 result = !VIM_ISDIGIT(curc) && vim_isfilec(curc); |
4444 | 4524 ADD_POS_NEG_STATE(t->state); |
4525 break; | |
4526 | |
4527 case NFA_PRINT: /* \p */ | |
4470 | 4528 result = ptr2cells(reginput) == 1; |
4444 | 4529 ADD_POS_NEG_STATE(t->state); |
4530 break; | |
4531 | |
4532 case NFA_SPRINT: /* \P */ | |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4533 result = !VIM_ISDIGIT(curc) && ptr2cells(reginput) == 1; |
4444 | 4534 ADD_POS_NEG_STATE(t->state); |
4535 break; | |
4536 | |
4537 case NFA_WHITE: /* \s */ | |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4538 result = vim_iswhite(curc); |
4444 | 4539 ADD_POS_NEG_STATE(t->state); |
4540 break; | |
4541 | |
4542 case NFA_NWHITE: /* \S */ | |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4543 result = curc != NUL && !vim_iswhite(curc); |
4444 | 4544 ADD_POS_NEG_STATE(t->state); |
4545 break; | |
4546 | |
4547 case NFA_DIGIT: /* \d */ | |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4548 result = ri_digit(curc); |
4444 | 4549 ADD_POS_NEG_STATE(t->state); |
4550 break; | |
4551 | |
4552 case NFA_NDIGIT: /* \D */ | |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4553 result = curc != NUL && !ri_digit(curc); |
4444 | 4554 ADD_POS_NEG_STATE(t->state); |
4555 break; | |
4556 | |
4557 case NFA_HEX: /* \x */ | |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4558 result = ri_hex(curc); |
4444 | 4559 ADD_POS_NEG_STATE(t->state); |
4560 break; | |
4561 | |
4562 case NFA_NHEX: /* \X */ | |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4563 result = curc != NUL && !ri_hex(curc); |
4444 | 4564 ADD_POS_NEG_STATE(t->state); |
4565 break; | |
4566 | |
4567 case NFA_OCTAL: /* \o */ | |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4568 result = ri_octal(curc); |
4444 | 4569 ADD_POS_NEG_STATE(t->state); |
4570 break; | |
4571 | |
4572 case NFA_NOCTAL: /* \O */ | |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4573 result = curc != NUL && !ri_octal(curc); |
4444 | 4574 ADD_POS_NEG_STATE(t->state); |
4575 break; | |
4576 | |
4577 case NFA_WORD: /* \w */ | |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4578 result = ri_word(curc); |
4444 | 4579 ADD_POS_NEG_STATE(t->state); |
4580 break; | |
4581 | |
4582 case NFA_NWORD: /* \W */ | |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4583 result = curc != NUL && !ri_word(curc); |
4444 | 4584 ADD_POS_NEG_STATE(t->state); |
4585 break; | |
4586 | |
4587 case NFA_HEAD: /* \h */ | |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4588 result = ri_head(curc); |
4444 | 4589 ADD_POS_NEG_STATE(t->state); |
4590 break; | |
4591 | |
4592 case NFA_NHEAD: /* \H */ | |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4593 result = curc != NUL && !ri_head(curc); |
4444 | 4594 ADD_POS_NEG_STATE(t->state); |
4595 break; | |
4596 | |
4597 case NFA_ALPHA: /* \a */ | |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4598 result = ri_alpha(curc); |
4444 | 4599 ADD_POS_NEG_STATE(t->state); |
4600 break; | |
4601 | |
4602 case NFA_NALPHA: /* \A */ | |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4603 result = curc != NUL && !ri_alpha(curc); |
4444 | 4604 ADD_POS_NEG_STATE(t->state); |
4605 break; | |
4606 | |
4607 case NFA_LOWER: /* \l */ | |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4608 result = ri_lower(curc); |
4444 | 4609 ADD_POS_NEG_STATE(t->state); |
4610 break; | |
4611 | |
4612 case NFA_NLOWER: /* \L */ | |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4613 result = curc != NUL && !ri_lower(curc); |
4444 | 4614 ADD_POS_NEG_STATE(t->state); |
4615 break; | |
4616 | |
4617 case NFA_UPPER: /* \u */ | |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4618 result = ri_upper(curc); |
4444 | 4619 ADD_POS_NEG_STATE(t->state); |
4620 break; | |
4621 | |
4622 case NFA_NUPPER: /* \U */ | |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4623 result = curc != NUL && !ri_upper(curc); |
4444 | 4624 ADD_POS_NEG_STATE(t->state); |
4625 break; | |
4626 | |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4627 case NFA_BACKREF1: |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4628 case NFA_BACKREF2: |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4629 case NFA_BACKREF3: |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4630 case NFA_BACKREF4: |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4631 case NFA_BACKREF5: |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4632 case NFA_BACKREF6: |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4633 case NFA_BACKREF7: |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4634 case NFA_BACKREF8: |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4635 case NFA_BACKREF9: |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4636 #ifdef FEAT_SYN_HL |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4637 case NFA_ZREF1: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4638 case NFA_ZREF2: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4639 case NFA_ZREF3: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4640 case NFA_ZREF4: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4641 case NFA_ZREF5: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4642 case NFA_ZREF6: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4643 case NFA_ZREF7: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4644 case NFA_ZREF8: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4645 case NFA_ZREF9: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4646 #endif |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4647 /* \1 .. \9 \z1 .. \z9 */ |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4648 { |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4649 int subidx; |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4650 int bytelen; |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4651 |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4652 if (t->state->c <= NFA_BACKREF9) |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4653 { |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4654 subidx = t->state->c - NFA_BACKREF1 + 1; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4655 result = match_backref(&t->subs.norm, subidx, &bytelen); |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4656 } |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4657 #ifdef FEAT_SYN_HL |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4658 else |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4659 { |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4660 subidx = t->state->c - NFA_ZREF1 + 1; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4661 result = match_zref(subidx, &bytelen); |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4662 } |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4663 #endif |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4664 |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4665 if (result) |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4666 { |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4667 if (bytelen == 0) |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4668 { |
4692
08fbb1ce1bc5
updated for version 7.3.1093
Bram Moolenaar <bram@vim.org>
parents:
4690
diff
changeset
|
4669 /* empty match always works, output of NFA_SKIP to be |
08fbb1ce1bc5
updated for version 7.3.1093
Bram Moolenaar <bram@vim.org>
parents:
4690
diff
changeset
|
4670 * used next */ |
08fbb1ce1bc5
updated for version 7.3.1093
Bram Moolenaar <bram@vim.org>
parents:
4690
diff
changeset
|
4671 addstate_here(thislist, t->state->out->out, &t->subs, |
4726
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4672 t->pim, &listidx); |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4673 } |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4674 else if (bytelen <= clen) |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4675 { |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4676 /* match current character, jump ahead to out of |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4677 * NFA_SKIP */ |
4726
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4678 ll = nextlist; |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4679 add_state = t->state->out->out; |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4680 add_off = clen; |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4681 #ifdef ENABLE_LOG |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4682 log_subsexpr(&nextlist->t[nextlist->n - 1].subs); |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4683 #endif |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4684 } |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4685 else |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4686 { |
4728
43de4ebbe7ad
updated for version 7.3.1111
Bram Moolenaar <bram@vim.org>
parents:
4726
diff
changeset
|
4687 /* skip over the matched characters, set character |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4688 * count in NFA_SKIP */ |
4726
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4689 ll = nextlist; |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4690 add_state = t->state->out; |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4691 add_off = bytelen; |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4692 add_count = bytelen - clen; |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4693 #ifdef ENABLE_LOG |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4694 log_subsexpr(&nextlist->t[nextlist->n - 1].subs); |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4695 #endif |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4696 } |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4697 |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4698 } |
4482 | 4699 break; |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4700 } |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4701 case NFA_SKIP: |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4702 /* charater of previous matching \1 .. \9 */ |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4703 if (t->count - clen <= 0) |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4704 { |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4705 /* end of match, go to what follows */ |
4726
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4706 ll = nextlist; |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4707 add_state = t->state->out; |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4708 add_off = clen; |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4709 #ifdef ENABLE_LOG |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4710 log_subsexpr(&nextlist->t[nextlist->n - 1].subs); |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4711 #endif |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4712 } |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4713 else |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4714 { |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4715 /* add state again with decremented count */ |
4726
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4716 ll = nextlist; |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4717 add_state = t->state; |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4718 add_off = 0; |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4719 add_count = t->count - clen; |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4720 #ifdef ENABLE_LOG |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4721 log_subsexpr(&nextlist->t[nextlist->n - 1].subs); |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4722 #endif |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4723 } |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4724 break; |
4482 | 4725 |
4726 case NFA_SKIP_CHAR: | |
4727 case NFA_ZSTART: | |
4569
f262fb02889d
updated for version 7.3.1032
Bram Moolenaar <bram@vim.org>
parents:
4567
diff
changeset
|
4728 case NFA_ZEND: |
4482 | 4729 /* TODO: should not happen? */ |
4730 break; | |
4731 | |
4583
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4732 case NFA_LNUM: |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4733 case NFA_LNUM_GT: |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4734 case NFA_LNUM_LT: |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4735 result = (REG_MULTI && |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4736 nfa_re_num_cmp(t->state->val, t->state->c - NFA_LNUM, |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4737 (long_u)(reglnum + reg_firstlnum))); |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4738 if (result) |
4726
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4739 addstate_here(thislist, t->state->out, &t->subs, |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4740 t->pim, &listidx); |
4583
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4741 break; |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4742 |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4743 case NFA_COL: |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4744 case NFA_COL_GT: |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4745 case NFA_COL_LT: |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4746 result = nfa_re_num_cmp(t->state->val, t->state->c - NFA_COL, |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4747 (long_u)(reginput - regline) + 1); |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4748 if (result) |
4726
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4749 addstate_here(thislist, t->state->out, &t->subs, |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4750 t->pim, &listidx); |
4583
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4751 break; |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4752 |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4753 case NFA_VCOL: |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4754 case NFA_VCOL_GT: |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4755 case NFA_VCOL_LT: |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4756 result = nfa_re_num_cmp(t->state->val, t->state->c - NFA_VCOL, |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4757 (long_u)win_linetabsize( |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4758 reg_win == NULL ? curwin : reg_win, |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4759 regline, (colnr_T)(reginput - regline)) + 1); |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4760 if (result) |
4726
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4761 addstate_here(thislist, t->state->out, &t->subs, |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4762 t->pim, &listidx); |
4583
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4763 break; |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4764 |
4732
0798b096bab3
updated for version 7.3.1113
Bram Moolenaar <bram@vim.org>
parents:
4730
diff
changeset
|
4765 case NFA_MARK: |
0798b096bab3
updated for version 7.3.1113
Bram Moolenaar <bram@vim.org>
parents:
4730
diff
changeset
|
4766 case NFA_MARK_GT: |
0798b096bab3
updated for version 7.3.1113
Bram Moolenaar <bram@vim.org>
parents:
4730
diff
changeset
|
4767 case NFA_MARK_LT: |
0798b096bab3
updated for version 7.3.1113
Bram Moolenaar <bram@vim.org>
parents:
4730
diff
changeset
|
4768 { |
0798b096bab3
updated for version 7.3.1113
Bram Moolenaar <bram@vim.org>
parents:
4730
diff
changeset
|
4769 pos_T *pos = getmark_buf(reg_buf, t->state->val, FALSE); |
0798b096bab3
updated for version 7.3.1113
Bram Moolenaar <bram@vim.org>
parents:
4730
diff
changeset
|
4770 |
0798b096bab3
updated for version 7.3.1113
Bram Moolenaar <bram@vim.org>
parents:
4730
diff
changeset
|
4771 /* Compare the mark position to the match position. */ |
0798b096bab3
updated for version 7.3.1113
Bram Moolenaar <bram@vim.org>
parents:
4730
diff
changeset
|
4772 result = (pos != NULL /* mark doesn't exist */ |
0798b096bab3
updated for version 7.3.1113
Bram Moolenaar <bram@vim.org>
parents:
4730
diff
changeset
|
4773 && pos->lnum > 0 /* mark isn't set in reg_buf */ |
0798b096bab3
updated for version 7.3.1113
Bram Moolenaar <bram@vim.org>
parents:
4730
diff
changeset
|
4774 && (pos->lnum == reglnum + reg_firstlnum |
0798b096bab3
updated for version 7.3.1113
Bram Moolenaar <bram@vim.org>
parents:
4730
diff
changeset
|
4775 ? (pos->col == (colnr_T)(reginput - regline) |
0798b096bab3
updated for version 7.3.1113
Bram Moolenaar <bram@vim.org>
parents:
4730
diff
changeset
|
4776 ? t->state->c == NFA_MARK |
0798b096bab3
updated for version 7.3.1113
Bram Moolenaar <bram@vim.org>
parents:
4730
diff
changeset
|
4777 : (pos->col < (colnr_T)(reginput - regline) |
0798b096bab3
updated for version 7.3.1113
Bram Moolenaar <bram@vim.org>
parents:
4730
diff
changeset
|
4778 ? t->state->c == NFA_MARK_GT |
0798b096bab3
updated for version 7.3.1113
Bram Moolenaar <bram@vim.org>
parents:
4730
diff
changeset
|
4779 : t->state->c == NFA_MARK_LT)) |
0798b096bab3
updated for version 7.3.1113
Bram Moolenaar <bram@vim.org>
parents:
4730
diff
changeset
|
4780 : (pos->lnum < reglnum + reg_firstlnum |
0798b096bab3
updated for version 7.3.1113
Bram Moolenaar <bram@vim.org>
parents:
4730
diff
changeset
|
4781 ? t->state->c == NFA_MARK_GT |
0798b096bab3
updated for version 7.3.1113
Bram Moolenaar <bram@vim.org>
parents:
4730
diff
changeset
|
4782 : t->state->c == NFA_MARK_LT))); |
0798b096bab3
updated for version 7.3.1113
Bram Moolenaar <bram@vim.org>
parents:
4730
diff
changeset
|
4783 if (result) |
0798b096bab3
updated for version 7.3.1113
Bram Moolenaar <bram@vim.org>
parents:
4730
diff
changeset
|
4784 addstate_here(thislist, t->state->out, &t->subs, |
0798b096bab3
updated for version 7.3.1113
Bram Moolenaar <bram@vim.org>
parents:
4730
diff
changeset
|
4785 t->pim, &listidx); |
0798b096bab3
updated for version 7.3.1113
Bram Moolenaar <bram@vim.org>
parents:
4730
diff
changeset
|
4786 break; |
0798b096bab3
updated for version 7.3.1113
Bram Moolenaar <bram@vim.org>
parents:
4730
diff
changeset
|
4787 } |
0798b096bab3
updated for version 7.3.1113
Bram Moolenaar <bram@vim.org>
parents:
4730
diff
changeset
|
4788 |
4583
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4789 case NFA_CURSOR: |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4790 result = (reg_win != NULL |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4791 && (reglnum + reg_firstlnum == reg_win->w_cursor.lnum) |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4792 && ((colnr_T)(reginput - regline) |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4793 == reg_win->w_cursor.col)); |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4794 if (result) |
4726
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4795 addstate_here(thislist, t->state->out, &t->subs, |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4796 t->pim, &listidx); |
4583
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4797 break; |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4798 |
4738
66a9e8fa6f45
updated for version 7.3.1116
Bram Moolenaar <bram@vim.org>
parents:
4734
diff
changeset
|
4799 #ifdef FEAT_VISUAL |
4730
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4728
diff
changeset
|
4800 case NFA_VISUAL: |
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4728
diff
changeset
|
4801 result = reg_match_visual(); |
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4728
diff
changeset
|
4802 if (result) |
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4728
diff
changeset
|
4803 addstate_here(thislist, t->state->out, &t->subs, |
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4728
diff
changeset
|
4804 t->pim, &listidx); |
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4728
diff
changeset
|
4805 break; |
4738
66a9e8fa6f45
updated for version 7.3.1116
Bram Moolenaar <bram@vim.org>
parents:
4734
diff
changeset
|
4806 #endif |
4730
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4728
diff
changeset
|
4807 |
4444 | 4808 default: /* regular character */ |
4559
04086e297563
updated for version 7.3.1027
Bram Moolenaar <bram@vim.org>
parents:
4557
diff
changeset
|
4809 { |
04086e297563
updated for version 7.3.1027
Bram Moolenaar <bram@vim.org>
parents:
4557
diff
changeset
|
4810 int c = t->state->c; |
04086e297563
updated for version 7.3.1027
Bram Moolenaar <bram@vim.org>
parents:
4557
diff
changeset
|
4811 |
4482 | 4812 /* TODO: put this in #ifdef later */ |
4559
04086e297563
updated for version 7.3.1027
Bram Moolenaar <bram@vim.org>
parents:
4557
diff
changeset
|
4813 if (c < -256) |
04086e297563
updated for version 7.3.1027
Bram Moolenaar <bram@vim.org>
parents:
4557
diff
changeset
|
4814 EMSGN("INTERNAL: Negative state char: %ld", c); |
04086e297563
updated for version 7.3.1027
Bram Moolenaar <bram@vim.org>
parents:
4557
diff
changeset
|
4815 if (is_Magic(c)) |
04086e297563
updated for version 7.3.1027
Bram Moolenaar <bram@vim.org>
parents:
4557
diff
changeset
|
4816 c = un_Magic(c); |
04086e297563
updated for version 7.3.1027
Bram Moolenaar <bram@vim.org>
parents:
4557
diff
changeset
|
4817 result = (c == curc); |
04086e297563
updated for version 7.3.1027
Bram Moolenaar <bram@vim.org>
parents:
4557
diff
changeset
|
4818 |
04086e297563
updated for version 7.3.1027
Bram Moolenaar <bram@vim.org>
parents:
4557
diff
changeset
|
4819 if (!result && ireg_ic) |
04086e297563
updated for version 7.3.1027
Bram Moolenaar <bram@vim.org>
parents:
4557
diff
changeset
|
4820 result = MB_TOLOWER(c) == MB_TOLOWER(curc); |
4527
55bcaa1d2749
updated for version 7.3.1011
Bram Moolenaar <bram@vim.org>
parents:
4525
diff
changeset
|
4821 #ifdef FEAT_MBYTE |
55bcaa1d2749
updated for version 7.3.1011
Bram Moolenaar <bram@vim.org>
parents:
4525
diff
changeset
|
4822 /* If there is a composing character which is not being |
55bcaa1d2749
updated for version 7.3.1011
Bram Moolenaar <bram@vim.org>
parents:
4525
diff
changeset
|
4823 * ignored there can be no match. Match with composing |
55bcaa1d2749
updated for version 7.3.1011
Bram Moolenaar <bram@vim.org>
parents:
4525
diff
changeset
|
4824 * character uses NFA_COMPOSING above. */ |
55bcaa1d2749
updated for version 7.3.1011
Bram Moolenaar <bram@vim.org>
parents:
4525
diff
changeset
|
4825 if (result && enc_utf8 && !ireg_icombine |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4826 && clen != utf_char2len(curc)) |
4527
55bcaa1d2749
updated for version 7.3.1011
Bram Moolenaar <bram@vim.org>
parents:
4525
diff
changeset
|
4827 result = FALSE; |
55bcaa1d2749
updated for version 7.3.1011
Bram Moolenaar <bram@vim.org>
parents:
4525
diff
changeset
|
4828 #endif |
4444 | 4829 ADD_POS_NEG_STATE(t->state); |
4830 break; | |
4559
04086e297563
updated for version 7.3.1027
Bram Moolenaar <bram@vim.org>
parents:
4557
diff
changeset
|
4831 } |
4726
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4832 |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4833 } /* switch (t->state->c) */ |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4834 |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4835 if (add_state != NULL) |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4836 { |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4837 if (t->pim != NULL) |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4838 { |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4839 /* postponed invisible match */ |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4840 /* TODO: also do t->pim->pim recursively? */ |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4841 if (t->pim->result == NFA_PIM_TODO) |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4842 { |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4843 #ifdef ENABLE_LOG |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4844 fprintf(log_fd, "\n"); |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4845 fprintf(log_fd, "==================================\n"); |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4846 fprintf(log_fd, "Postponed recursive nfa_regmatch()\n"); |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4847 fprintf(log_fd, "\n"); |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4848 #endif |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4849 result = recursive_regmatch(t->pim->state, |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4850 prog, submatch, m, &listids); |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4851 t->pim->result = result ? NFA_PIM_MATCH |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4852 : NFA_PIM_NOMATCH; |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4853 /* for \@! it is a match when result is FALSE */ |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4854 if (result != t->pim->state->negated) |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4855 { |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4856 /* Copy submatch info from the recursive call */ |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4857 copy_sub_off(&t->pim->subs.norm, &m->norm); |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4858 #ifdef FEAT_SYN_HL |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4859 copy_sub_off(&t->pim->subs.synt, &m->synt); |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4860 #endif |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4861 } |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4862 } |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4863 else |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4864 { |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4865 result = (t->pim->result == NFA_PIM_MATCH); |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4866 #ifdef ENABLE_LOG |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4867 fprintf(log_fd, "\n"); |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4868 fprintf(log_fd, "Using previous recursive nfa_regmatch() result, result == %d\n", t->pim->result); |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4869 fprintf(log_fd, "MATCH = %s\n", result == TRUE ? "OK" : "FALSE"); |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4870 fprintf(log_fd, "\n"); |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4871 #endif |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4872 } |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4873 |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4874 /* for \@! it is a match when result is FALSE */ |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4875 if (result != t->pim->state->negated) |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4876 { |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4877 /* Copy submatch info from the recursive call */ |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4878 copy_sub_off(&t->subs.norm, &t->pim->subs.norm); |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4879 #ifdef FEAT_SYN_HL |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4880 copy_sub_off(&t->subs.synt, &t->pim->subs.synt); |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4881 #endif |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4882 } |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4883 else |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4884 /* look-behind match failed, don't add the state */ |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4885 continue; |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4886 } |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4887 |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4888 addstate(ll, add_state, &t->subs, add_off); |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4889 if (add_count > 0) |
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4890 nextlist->t[ll->n - 1].count = add_count; |
4444 | 4891 } |
4892 | |
4893 } /* for (thislist = thislist; thislist->state; thislist++) */ | |
4894 | |
4557
888c12c899e5
updated for version 7.3.1026
Bram Moolenaar <bram@vim.org>
parents:
4555
diff
changeset
|
4895 /* Look for the start of a match in the current position by adding the |
888c12c899e5
updated for version 7.3.1026
Bram Moolenaar <bram@vim.org>
parents:
4555
diff
changeset
|
4896 * start state to the list of states. |
888c12c899e5
updated for version 7.3.1026
Bram Moolenaar <bram@vim.org>
parents:
4555
diff
changeset
|
4897 * The first found match is the leftmost one, thus the order of states |
888c12c899e5
updated for version 7.3.1026
Bram Moolenaar <bram@vim.org>
parents:
4555
diff
changeset
|
4898 * matters! |
888c12c899e5
updated for version 7.3.1026
Bram Moolenaar <bram@vim.org>
parents:
4555
diff
changeset
|
4899 * Do not add the start state in recursive calls of nfa_regmatch(), |
888c12c899e5
updated for version 7.3.1026
Bram Moolenaar <bram@vim.org>
parents:
4555
diff
changeset
|
4900 * because recursive calls should only start in the first position. |
4694
efc4fb311d5d
updated for version 7.3.1094
Bram Moolenaar <bram@vim.org>
parents:
4692
diff
changeset
|
4901 * Unless "nfa_endp" is not NULL, then we match the end position. |
4557
888c12c899e5
updated for version 7.3.1026
Bram Moolenaar <bram@vim.org>
parents:
4555
diff
changeset
|
4902 * Also don't start a match past the first line. */ |
4682
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
4903 if (nfa_match == FALSE |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4904 && ((start->c == NFA_MOPEN |
4682
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
4905 && reglnum == 0 |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
4906 && clen != 0 |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
4907 && (ireg_maxcol == 0 |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
4908 || (colnr_T)(reginput - regline) < ireg_maxcol)) |
4694
efc4fb311d5d
updated for version 7.3.1094
Bram Moolenaar <bram@vim.org>
parents:
4692
diff
changeset
|
4909 || (nfa_endp != NULL |
4682
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
4910 && (REG_MULTI |
4694
efc4fb311d5d
updated for version 7.3.1094
Bram Moolenaar <bram@vim.org>
parents:
4692
diff
changeset
|
4911 ? (reglnum < nfa_endp->se_u.pos.lnum |
efc4fb311d5d
updated for version 7.3.1094
Bram Moolenaar <bram@vim.org>
parents:
4692
diff
changeset
|
4912 || (reglnum == nfa_endp->se_u.pos.lnum |
4682
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
4913 && (int)(reginput - regline) |
4694
efc4fb311d5d
updated for version 7.3.1094
Bram Moolenaar <bram@vim.org>
parents:
4692
diff
changeset
|
4914 < nfa_endp->se_u.pos.col)) |
efc4fb311d5d
updated for version 7.3.1094
Bram Moolenaar <bram@vim.org>
parents:
4692
diff
changeset
|
4915 : reginput < nfa_endp->se_u.ptr)))) |
4444 | 4916 { |
4917 #ifdef ENABLE_LOG | |
4918 fprintf(log_fd, "(---) STARTSTATE\n"); | |
4919 #endif | |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4920 addstate(nextlist, start, m, clen); |
4444 | 4921 } |
4922 | |
4923 #ifdef ENABLE_LOG | |
4924 fprintf(log_fd, ">>> Thislist had %d states available: ", thislist->n); | |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4925 { |
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4926 int i; |
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4927 |
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4928 for (i = 0; i < thislist->n; i++) |
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4929 fprintf(log_fd, "%d ", abs(thislist->t[i].state->id)); |
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4930 } |
4444 | 4931 fprintf(log_fd, "\n"); |
4932 #endif | |
4933 | |
4934 nextchar: | |
4515
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
4935 /* Advance to the next character, or advance to the next line, or |
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
4936 * finish. */ |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4937 if (clen != 0) |
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4938 reginput += clen; |
4694
efc4fb311d5d
updated for version 7.3.1094
Bram Moolenaar <bram@vim.org>
parents:
4692
diff
changeset
|
4939 else if (go_to_nextline || (nfa_endp != NULL && REG_MULTI |
efc4fb311d5d
updated for version 7.3.1094
Bram Moolenaar <bram@vim.org>
parents:
4692
diff
changeset
|
4940 && reglnum < nfa_endp->se_u.pos.lnum)) |
4515
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
4941 reg_nextline(); |
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
4942 else |
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
4943 break; |
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
4944 } |
4444 | 4945 |
4946 #ifdef ENABLE_LOG | |
4947 if (log_fd != stderr) | |
4948 fclose(log_fd); | |
4949 log_fd = NULL; | |
4950 #endif | |
4951 | |
4952 theend: | |
4953 /* Free memory */ | |
4954 vim_free(list[0].t); | |
4955 vim_free(list[1].t); | |
4956 vim_free(list[2].t); | |
4561
4d81fdda8f35
updated for version 7.3.1028
Bram Moolenaar <bram@vim.org>
parents:
4559
diff
changeset
|
4957 vim_free(listids); |
4726
3849c811cc0b
updated for version 7.3.1110
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4958 ga_clear(&pimlist); |
4444 | 4959 #undef ADD_POS_NEG_STATE |
4460 | 4960 #ifdef NFA_REGEXP_DEBUG_LOG |
4444 | 4961 fclose(debug); |
4962 #endif | |
4963 | |
4561
4d81fdda8f35
updated for version 7.3.1028
Bram Moolenaar <bram@vim.org>
parents:
4559
diff
changeset
|
4964 return nfa_match; |
4444 | 4965 } |
4966 | |
4967 /* | |
4968 * Try match of "prog" with at regline["col"]. | |
4969 * Returns 0 for failure, number of lines contained in the match otherwise. | |
4970 */ | |
4971 static long | |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4972 nfa_regtry(prog, col) |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4973 nfa_regprog_T *prog; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4974 colnr_T col; |
4444 | 4975 { |
4976 int i; | |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4977 regsubs_T subs, m; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4978 nfa_state_T *start = prog->start; |
4444 | 4979 #ifdef ENABLE_LOG |
4980 FILE *f; | |
4981 #endif | |
4982 | |
4983 reginput = regline + col; | |
4984 need_clear_subexpr = TRUE; | |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4985 #ifdef FEAT_SYN_HL |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4986 /* Clear the external match subpointers if necessary. */ |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4987 if (prog->reghasz == REX_SET) |
4712
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
4988 { |
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
4989 nfa_has_zsubexpr = TRUE; |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4990 need_clear_zsubexpr = TRUE; |
4712
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
4991 } |
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
4992 else |
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
4993 nfa_has_zsubexpr = FALSE; |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4994 #endif |
4444 | 4995 |
4996 #ifdef ENABLE_LOG | |
4531
1be43c095aff
updated for version 7.3.1013
Bram Moolenaar <bram@vim.org>
parents:
4529
diff
changeset
|
4997 f = fopen(NFA_REGEXP_RUN_LOG, "a"); |
4444 | 4998 if (f != NULL) |
4999 { | |
5000 fprintf(f, "\n\n\n\n\n\n\t\t=======================================================\n"); | |
5001 fprintf(f, " =======================================================\n"); | |
5002 #ifdef DEBUG | |
5003 fprintf(f, "\tRegexp is \"%s\"\n", nfa_regengine.expr); | |
5004 #endif | |
5005 fprintf(f, "\tInput text is \"%s\" \n", reginput); | |
4657
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
5006 fprintf(f, " =======================================================\n\n"); |
4533
6a2005efa02b
updated for version 7.3.1014
Bram Moolenaar <bram@vim.org>
parents:
4531
diff
changeset
|
5007 nfa_print_state(f, start); |
4444 | 5008 fprintf(f, "\n\n"); |
5009 fclose(f); | |
5010 } | |
5011 else | |
5012 EMSG(_("Could not open temporary log file for writing ")); | |
5013 #endif | |
5014 | |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
5015 clear_sub(&subs.norm); |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
5016 clear_sub(&m.norm); |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
5017 #ifdef FEAT_SYN_HL |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
5018 clear_sub(&subs.synt); |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
5019 clear_sub(&m.synt); |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
5020 #endif |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
5021 |
4712
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
5022 if (nfa_regmatch(prog, start, &subs, &m) == FALSE) |
4444 | 5023 return 0; |
5024 | |
5025 cleanup_subexpr(); | |
5026 if (REG_MULTI) | |
5027 { | |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
5028 for (i = 0; i < subs.norm.in_use; i++) |
4444 | 5029 { |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
5030 reg_startpos[i] = subs.norm.list.multi[i].start; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
5031 reg_endpos[i] = subs.norm.list.multi[i].end; |
4444 | 5032 } |
5033 | |
5034 if (reg_startpos[0].lnum < 0) | |
5035 { | |
5036 reg_startpos[0].lnum = 0; | |
5037 reg_startpos[0].col = col; | |
5038 } | |
5039 if (reg_endpos[0].lnum < 0) | |
5040 { | |
4569
f262fb02889d
updated for version 7.3.1032
Bram Moolenaar <bram@vim.org>
parents:
4567
diff
changeset
|
5041 /* pattern has a \ze but it didn't match, use current end */ |
4444 | 5042 reg_endpos[0].lnum = reglnum; |
5043 reg_endpos[0].col = (int)(reginput - regline); | |
5044 } | |
5045 else | |
5046 /* Use line number of "\ze". */ | |
5047 reglnum = reg_endpos[0].lnum; | |
5048 } | |
5049 else | |
5050 { | |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
5051 for (i = 0; i < subs.norm.in_use; i++) |
4444 | 5052 { |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
5053 reg_startp[i] = subs.norm.list.line[i].start; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
5054 reg_endp[i] = subs.norm.list.line[i].end; |
4444 | 5055 } |
5056 | |
5057 if (reg_startp[0] == NULL) | |
5058 reg_startp[0] = regline + col; | |
5059 if (reg_endp[0] == NULL) | |
5060 reg_endp[0] = reginput; | |
5061 } | |
5062 | |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
5063 #ifdef FEAT_SYN_HL |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
5064 /* Package any found \z(...\) matches for export. Default is none. */ |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
5065 unref_extmatch(re_extmatch_out); |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
5066 re_extmatch_out = NULL; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
5067 |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
5068 if (prog->reghasz == REX_SET) |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
5069 { |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
5070 cleanup_zsubexpr(); |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
5071 re_extmatch_out = make_extmatch(); |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
5072 for (i = 0; i < subs.synt.in_use; i++) |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
5073 { |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
5074 if (REG_MULTI) |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
5075 { |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
5076 struct multipos *mpos = &subs.synt.list.multi[i]; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
5077 |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
5078 /* Only accept single line matches. */ |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
5079 if (mpos->start.lnum >= 0 && mpos->start.lnum == mpos->end.lnum) |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
5080 re_extmatch_out->matches[i] = |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
5081 vim_strnsave(reg_getline(mpos->start.lnum) |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
5082 + mpos->start.col, |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
5083 mpos->end.col - mpos->start.col); |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
5084 } |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
5085 else |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
5086 { |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
5087 struct linepos *lpos = &subs.synt.list.line[i]; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
5088 |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
5089 if (lpos->start != NULL && lpos->end != NULL) |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
5090 re_extmatch_out->matches[i] = |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
5091 vim_strnsave(lpos->start, |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
5092 (int)(lpos->end - lpos->start)); |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
5093 } |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
5094 } |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
5095 } |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
5096 #endif |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
5097 |
4444 | 5098 return 1 + reglnum; |
5099 } | |
5100 | |
5101 /* | |
5102 * Match a regexp against a string ("line" points to the string) or multiple | |
5103 * lines ("line" is NULL, use reg_getline()). | |
5104 * | |
5105 * Returns 0 for failure, number of lines contained in the match otherwise. | |
5106 */ | |
5107 static long | |
5108 nfa_regexec_both(line, col) | |
5109 char_u *line; | |
5110 colnr_T col; /* column to start looking for match */ | |
5111 { | |
5112 nfa_regprog_T *prog; | |
5113 long retval = 0L; | |
5114 int i; | |
5115 | |
5116 if (REG_MULTI) | |
5117 { | |
5118 prog = (nfa_regprog_T *)reg_mmatch->regprog; | |
5119 line = reg_getline((linenr_T)0); /* relative to the cursor */ | |
5120 reg_startpos = reg_mmatch->startpos; | |
5121 reg_endpos = reg_mmatch->endpos; | |
5122 } | |
5123 else | |
5124 { | |
5125 prog = (nfa_regprog_T *)reg_match->regprog; | |
5126 reg_startp = reg_match->startp; | |
5127 reg_endp = reg_match->endp; | |
5128 } | |
5129 | |
5130 /* Be paranoid... */ | |
5131 if (prog == NULL || line == NULL) | |
5132 { | |
5133 EMSG(_(e_null)); | |
5134 goto theend; | |
5135 } | |
5136 | |
5137 /* If the start column is past the maximum column: no need to try. */ | |
5138 if (ireg_maxcol > 0 && col >= ireg_maxcol) | |
5139 goto theend; | |
5140 | |
5141 /* If pattern contains "\c" or "\C": overrule value of ireg_ic */ | |
5142 if (prog->regflags & RF_ICASE) | |
5143 ireg_ic = TRUE; | |
5144 else if (prog->regflags & RF_NOICASE) | |
5145 ireg_ic = FALSE; | |
5146 | |
5147 #ifdef FEAT_MBYTE | |
5148 /* If pattern contains "\Z" overrule value of ireg_icombine */ | |
5149 if (prog->regflags & RF_ICOMBINE) | |
5150 ireg_icombine = TRUE; | |
5151 #endif | |
5152 | |
5153 regline = line; | |
5154 reglnum = 0; /* relative to line */ | |
5155 | |
4553
7b835b2969af
updated for version 7.3.1024
Bram Moolenaar <bram@vim.org>
parents:
4551
diff
changeset
|
5156 nfa_has_zend = prog->has_zend; |
4647
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
5157 nfa_has_backref = prog->has_backref; |
4561
4d81fdda8f35
updated for version 7.3.1028
Bram Moolenaar <bram@vim.org>
parents:
4559
diff
changeset
|
5158 nfa_nsubexpr = prog->nsubexp; |
4718
ec72bb4a0fc2
updated for version 7.3.1106
Bram Moolenaar <bram@vim.org>
parents:
4716
diff
changeset
|
5159 nfa_listid = 1; |
ec72bb4a0fc2
updated for version 7.3.1106
Bram Moolenaar <bram@vim.org>
parents:
4716
diff
changeset
|
5160 nfa_alt_listid = 2; |
4690
9d97a0c045ef
updated for version 7.3.1092
Bram Moolenaar <bram@vim.org>
parents:
4688
diff
changeset
|
5161 #ifdef DEBUG |
9d97a0c045ef
updated for version 7.3.1092
Bram Moolenaar <bram@vim.org>
parents:
4688
diff
changeset
|
5162 nfa_regengine.expr = prog->pattern; |
9d97a0c045ef
updated for version 7.3.1092
Bram Moolenaar <bram@vim.org>
parents:
4688
diff
changeset
|
5163 #endif |
4553
7b835b2969af
updated for version 7.3.1024
Bram Moolenaar <bram@vim.org>
parents:
4551
diff
changeset
|
5164 |
4444 | 5165 nstate = prog->nstate; |
5166 for (i = 0; i < nstate; ++i) | |
5167 { | |
5168 prog->state[i].id = i; | |
4718
ec72bb4a0fc2
updated for version 7.3.1106
Bram Moolenaar <bram@vim.org>
parents:
4716
diff
changeset
|
5169 prog->state[i].lastlist[0] = 0; |
ec72bb4a0fc2
updated for version 7.3.1106
Bram Moolenaar <bram@vim.org>
parents:
4716
diff
changeset
|
5170 prog->state[i].lastlist[1] = 0; |
4444 | 5171 } |
5172 | |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
5173 retval = nfa_regtry(prog, col); |
4444 | 5174 |
4690
9d97a0c045ef
updated for version 7.3.1092
Bram Moolenaar <bram@vim.org>
parents:
4688
diff
changeset
|
5175 #ifdef DEBUG |
9d97a0c045ef
updated for version 7.3.1092
Bram Moolenaar <bram@vim.org>
parents:
4688
diff
changeset
|
5176 nfa_regengine.expr = NULL; |
9d97a0c045ef
updated for version 7.3.1092
Bram Moolenaar <bram@vim.org>
parents:
4688
diff
changeset
|
5177 #endif |
9d97a0c045ef
updated for version 7.3.1092
Bram Moolenaar <bram@vim.org>
parents:
4688
diff
changeset
|
5178 |
4444 | 5179 theend: |
5180 return retval; | |
5181 } | |
5182 | |
5183 /* | |
5184 * Compile a regular expression into internal code for the NFA matcher. | |
5185 * Returns the program in allocated space. Returns NULL for an error. | |
5186 */ | |
5187 static regprog_T * | |
5188 nfa_regcomp(expr, re_flags) | |
5189 char_u *expr; | |
5190 int re_flags; | |
5191 { | |
4541
80170d61a85c
updated for version 7.3.1018
Bram Moolenaar <bram@vim.org>
parents:
4539
diff
changeset
|
5192 nfa_regprog_T *prog = NULL; |
4458 | 5193 size_t prog_size; |
4444 | 5194 int *postfix; |
5195 | |
5196 if (expr == NULL) | |
5197 return NULL; | |
5198 | |
5199 #ifdef DEBUG | |
5200 nfa_regengine.expr = expr; | |
5201 #endif | |
5202 | |
5203 init_class_tab(); | |
5204 | |
5205 if (nfa_regcomp_start(expr, re_flags) == FAIL) | |
5206 return NULL; | |
5207 | |
5208 /* Build postfix form of the regexp. Needed to build the NFA | |
4541
80170d61a85c
updated for version 7.3.1018
Bram Moolenaar <bram@vim.org>
parents:
4539
diff
changeset
|
5209 * (and count its size). */ |
4444 | 5210 postfix = re2post(); |
5211 if (postfix == NULL) | |
4555
b2946c06d1b6
updated for version 7.3.1025
Bram Moolenaar <bram@vim.org>
parents:
4553
diff
changeset
|
5212 { |
b2946c06d1b6
updated for version 7.3.1025
Bram Moolenaar <bram@vim.org>
parents:
4553
diff
changeset
|
5213 /* TODO: only give this error for debugging? */ |
b2946c06d1b6
updated for version 7.3.1025
Bram Moolenaar <bram@vim.org>
parents:
4553
diff
changeset
|
5214 if (post_ptr >= post_end) |
b2946c06d1b6
updated for version 7.3.1025
Bram Moolenaar <bram@vim.org>
parents:
4553
diff
changeset
|
5215 EMSGN("Internal error: estimated max number of states insufficient: %ld", post_end - post_start); |
4444 | 5216 goto fail; /* Cascaded (syntax?) error */ |
4555
b2946c06d1b6
updated for version 7.3.1025
Bram Moolenaar <bram@vim.org>
parents:
4553
diff
changeset
|
5217 } |
4444 | 5218 |
5219 /* | |
5220 * In order to build the NFA, we parse the input regexp twice: | |
5221 * 1. first pass to count size (so we can allocate space) | |
5222 * 2. second to emit code | |
5223 */ | |
5224 #ifdef ENABLE_LOG | |
5225 { | |
4531
1be43c095aff
updated for version 7.3.1013
Bram Moolenaar <bram@vim.org>
parents:
4529
diff
changeset
|
5226 FILE *f = fopen(NFA_REGEXP_RUN_LOG, "a"); |
4444 | 5227 |
5228 if (f != NULL) | |
5229 { | |
5230 fprintf(f, "\n*****************************\n\n\n\n\tCompiling regexp \"%s\" ... hold on !\n", expr); | |
5231 fclose(f); | |
5232 } | |
5233 } | |
5234 #endif | |
5235 | |
5236 /* | |
5237 * PASS 1 | |
5238 * Count number of NFA states in "nstate". Do not build the NFA. | |
5239 */ | |
5240 post2nfa(postfix, post_ptr, TRUE); | |
4541
80170d61a85c
updated for version 7.3.1018
Bram Moolenaar <bram@vim.org>
parents:
4539
diff
changeset
|
5241 |
80170d61a85c
updated for version 7.3.1018
Bram Moolenaar <bram@vim.org>
parents:
4539
diff
changeset
|
5242 /* Space for compiled regexp */ |
80170d61a85c
updated for version 7.3.1018
Bram Moolenaar <bram@vim.org>
parents:
4539
diff
changeset
|
5243 prog_size = sizeof(nfa_regprog_T) + sizeof(nfa_state_T) * nstate; |
80170d61a85c
updated for version 7.3.1018
Bram Moolenaar <bram@vim.org>
parents:
4539
diff
changeset
|
5244 prog = (nfa_regprog_T *)lalloc(prog_size, TRUE); |
80170d61a85c
updated for version 7.3.1018
Bram Moolenaar <bram@vim.org>
parents:
4539
diff
changeset
|
5245 if (prog == NULL) |
80170d61a85c
updated for version 7.3.1018
Bram Moolenaar <bram@vim.org>
parents:
4539
diff
changeset
|
5246 goto fail; |
80170d61a85c
updated for version 7.3.1018
Bram Moolenaar <bram@vim.org>
parents:
4539
diff
changeset
|
5247 vim_memset(prog, 0, prog_size); |
4444 | 5248 state_ptr = prog->state; |
5249 | |
5250 /* | |
5251 * PASS 2 | |
5252 * Build the NFA | |
5253 */ | |
5254 prog->start = post2nfa(postfix, post_ptr, FALSE); | |
5255 if (prog->start == NULL) | |
5256 goto fail; | |
5257 | |
5258 prog->regflags = regflags; | |
5259 prog->engine = &nfa_regengine; | |
5260 prog->nstate = nstate; | |
4553
7b835b2969af
updated for version 7.3.1024
Bram Moolenaar <bram@vim.org>
parents:
4551
diff
changeset
|
5261 prog->has_zend = nfa_has_zend; |
4647
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
5262 prog->has_backref = nfa_has_backref; |
4561
4d81fdda8f35
updated for version 7.3.1028
Bram Moolenaar <bram@vim.org>
parents:
4559
diff
changeset
|
5263 prog->nsubexp = regnpar; |
4444 | 5264 #ifdef ENABLE_LOG |
5265 nfa_postfix_dump(expr, OK); | |
5266 nfa_dump(prog); | |
5267 #endif | |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
5268 #ifdef FEAT_SYN_HL |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
5269 /* Remember whether this pattern has any \z specials in it. */ |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
5270 prog->reghasz = re_has_z; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
5271 #endif |
4690
9d97a0c045ef
updated for version 7.3.1092
Bram Moolenaar <bram@vim.org>
parents:
4688
diff
changeset
|
5272 #ifdef DEBUG |
9d97a0c045ef
updated for version 7.3.1092
Bram Moolenaar <bram@vim.org>
parents:
4688
diff
changeset
|
5273 prog->pattern = vim_strsave(expr); /* memory will leak */ |
9d97a0c045ef
updated for version 7.3.1092
Bram Moolenaar <bram@vim.org>
parents:
4688
diff
changeset
|
5274 nfa_regengine.expr = NULL; |
9d97a0c045ef
updated for version 7.3.1092
Bram Moolenaar <bram@vim.org>
parents:
4688
diff
changeset
|
5275 #endif |
4444 | 5276 |
5277 out: | |
5278 vim_free(post_start); | |
5279 post_start = post_ptr = post_end = NULL; | |
5280 state_ptr = NULL; | |
5281 return (regprog_T *)prog; | |
5282 | |
5283 fail: | |
5284 vim_free(prog); | |
5285 prog = NULL; | |
5286 #ifdef ENABLE_LOG | |
5287 nfa_postfix_dump(expr, FAIL); | |
5288 #endif | |
5289 #ifdef DEBUG | |
5290 nfa_regengine.expr = NULL; | |
5291 #endif | |
5292 goto out; | |
5293 } | |
5294 | |
5295 | |
5296 /* | |
5297 * Match a regexp against a string. | |
5298 * "rmp->regprog" is a compiled regexp as returned by nfa_regcomp(). | |
5299 * Uses curbuf for line count and 'iskeyword'. | |
5300 * | |
5301 * Return TRUE if there is a match, FALSE if not. | |
5302 */ | |
5303 static int | |
5304 nfa_regexec(rmp, line, col) | |
5305 regmatch_T *rmp; | |
5306 char_u *line; /* string to match against */ | |
5307 colnr_T col; /* column to start looking for match */ | |
5308 { | |
5309 reg_match = rmp; | |
5310 reg_mmatch = NULL; | |
5311 reg_maxline = 0; | |
5312 reg_line_lbr = FALSE; | |
5313 reg_buf = curbuf; | |
5314 reg_win = NULL; | |
5315 ireg_ic = rmp->rm_ic; | |
5316 #ifdef FEAT_MBYTE | |
5317 ireg_icombine = FALSE; | |
5318 #endif | |
5319 ireg_maxcol = 0; | |
5320 return (nfa_regexec_both(line, col) != 0); | |
5321 } | |
5322 | |
5323 #if defined(FEAT_MODIFY_FNAME) || defined(FEAT_EVAL) \ | |
5324 || defined(FIND_REPLACE_DIALOG) || defined(PROTO) | |
5325 | |
5326 static int nfa_regexec_nl __ARGS((regmatch_T *rmp, char_u *line, colnr_T col)); | |
5327 | |
5328 /* | |
5329 * Like nfa_regexec(), but consider a "\n" in "line" to be a line break. | |
5330 */ | |
5331 static int | |
5332 nfa_regexec_nl(rmp, line, col) | |
5333 regmatch_T *rmp; | |
5334 char_u *line; /* string to match against */ | |
5335 colnr_T col; /* column to start looking for match */ | |
5336 { | |
5337 reg_match = rmp; | |
5338 reg_mmatch = NULL; | |
5339 reg_maxline = 0; | |
5340 reg_line_lbr = TRUE; | |
5341 reg_buf = curbuf; | |
5342 reg_win = NULL; | |
5343 ireg_ic = rmp->rm_ic; | |
5344 #ifdef FEAT_MBYTE | |
5345 ireg_icombine = FALSE; | |
5346 #endif | |
5347 ireg_maxcol = 0; | |
5348 return (nfa_regexec_both(line, col) != 0); | |
5349 } | |
5350 #endif | |
5351 | |
5352 | |
5353 /* | |
5354 * Match a regexp against multiple lines. | |
5355 * "rmp->regprog" is a compiled regexp as returned by vim_regcomp(). | |
5356 * Uses curbuf for line count and 'iskeyword'. | |
5357 * | |
5358 * Return zero if there is no match. Return number of lines contained in the | |
5359 * match otherwise. | |
5360 * | |
5361 * Note: the body is the same as bt_regexec() except for nfa_regexec_both() | |
5362 * | |
5363 * ! Also NOTE : match may actually be in another line. e.g.: | |
5364 * when r.e. is \nc, cursor is at 'a' and the text buffer looks like | |
5365 * | |
5366 * +-------------------------+ | |
5367 * |a | | |
5368 * |b | | |
5369 * |c | | |
5370 * | | | |
5371 * +-------------------------+ | |
5372 * | |
5373 * then nfa_regexec_multi() returns 3. while the original | |
5374 * vim_regexec_multi() returns 0 and a second call at line 2 will return 2. | |
5375 * | |
5376 * FIXME if this behavior is not compatible. | |
5377 */ | |
5378 static long | |
5379 nfa_regexec_multi(rmp, win, buf, lnum, col, tm) | |
5380 regmmatch_T *rmp; | |
5381 win_T *win; /* window in which to search or NULL */ | |
5382 buf_T *buf; /* buffer in which to search */ | |
5383 linenr_T lnum; /* nr of line to start looking for match */ | |
5384 colnr_T col; /* column to start looking for match */ | |
5385 proftime_T *tm UNUSED; /* timeout limit or NULL */ | |
5386 { | |
5387 reg_match = NULL; | |
5388 reg_mmatch = rmp; | |
5389 reg_buf = buf; | |
5390 reg_win = win; | |
5391 reg_firstlnum = lnum; | |
5392 reg_maxline = reg_buf->b_ml.ml_line_count - lnum; | |
5393 reg_line_lbr = FALSE; | |
5394 ireg_ic = rmp->rmm_ic; | |
5395 #ifdef FEAT_MBYTE | |
5396 ireg_icombine = FALSE; | |
5397 #endif | |
5398 ireg_maxcol = rmp->rmm_maxcol; | |
5399 | |
4503 | 5400 return nfa_regexec_both(NULL, col); |
4444 | 5401 } |
5402 | |
5403 #ifdef DEBUG | |
5404 # undef ENABLE_LOG | |
5405 #endif |