Mercurial > vim
annotate src/regexp_nfa.c @ 4712:832bf8136d86 v7.3.1103
updated for version 7.3.1103
Problem: New regexp engine: overhead in saving and restoring.
Solution: Make saving and restoring list IDs faster. Don't copy or check \z
subexpressions when they are not used.
author | Bram Moolenaar <bram@vim.org> |
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date | Sun, 02 Jun 2013 21:30:04 +0200 |
parents | ed4e689bbea1 |
children | fc4d7f02ea3a |
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 |
4444 | 182 NFA_FIRST_NL = NFA_ANY + ADD_NL, |
183 NFA_LAST_NL = NFA_NUPPER + ADD_NL, | |
184 | |
185 /* Character classes [:alnum:] etc */ | |
186 NFA_CLASS_ALNUM, | |
187 NFA_CLASS_ALPHA, | |
188 NFA_CLASS_BLANK, | |
189 NFA_CLASS_CNTRL, | |
190 NFA_CLASS_DIGIT, | |
191 NFA_CLASS_GRAPH, | |
192 NFA_CLASS_LOWER, | |
193 NFA_CLASS_PRINT, | |
194 NFA_CLASS_PUNCT, | |
195 NFA_CLASS_SPACE, | |
196 NFA_CLASS_UPPER, | |
197 NFA_CLASS_XDIGIT, | |
198 NFA_CLASS_TAB, | |
199 NFA_CLASS_RETURN, | |
200 NFA_CLASS_BACKSPACE, | |
201 NFA_CLASS_ESCAPE | |
202 }; | |
203 | |
204 /* Keep in sync with classchars. */ | |
205 static int nfa_classcodes[] = { | |
206 NFA_ANY, NFA_IDENT, NFA_SIDENT, NFA_KWORD,NFA_SKWORD, | |
207 NFA_FNAME, NFA_SFNAME, NFA_PRINT, NFA_SPRINT, | |
208 NFA_WHITE, NFA_NWHITE, NFA_DIGIT, NFA_NDIGIT, | |
209 NFA_HEX, NFA_NHEX, NFA_OCTAL, NFA_NOCTAL, | |
210 NFA_WORD, NFA_NWORD, NFA_HEAD, NFA_NHEAD, | |
211 NFA_ALPHA, NFA_NALPHA, NFA_LOWER, NFA_NLOWER, | |
212 NFA_UPPER, NFA_NUPPER | |
213 }; | |
214 | |
215 static char_u e_misplaced[] = N_("E866: (NFA regexp) Misplaced %c"); | |
216 | |
217 /* | |
218 * NFA errors can be of 3 types: | |
219 * *** NFA runtime errors, when something unknown goes wrong. The NFA fails | |
220 * silently and revert the to backtracking engine. | |
221 * syntax_error = FALSE; | |
222 * *** Regexp syntax errors, when the input regexp is not syntactically correct. | |
223 * The NFA engine displays an error message, and nothing else happens. | |
224 * syntax_error = TRUE | |
225 * *** Unsupported features, when the input regexp uses an operator that is not | |
226 * implemented in the NFA. The NFA engine fails silently, and reverts to the | |
227 * old backtracking engine. | |
228 * syntax_error = FALSE | |
229 * "The NFA fails" means that "compiling the regexp with the NFA fails": | |
230 * nfa_regcomp() returns FAIL. | |
231 */ | |
232 static int syntax_error = FALSE; | |
233 | |
234 /* NFA regexp \ze operator encountered. */ | |
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235 static int nfa_has_zend; |
4444 | 236 |
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237 /* NFA regexp \1 .. \9 encountered. */ |
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238 static int nfa_has_backref; |
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239 |
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240 /* NFA regexp has \z( ), set zsubexpr. */ |
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241 static int nfa_has_zsubexpr; |
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242 |
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243 /* Number of sub expressions actually being used during execution. 1 if only |
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244 * the whole match (subexpr 0) is used. */ |
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245 static int nfa_nsubexpr; |
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246 |
4444 | 247 static int *post_start; /* holds the postfix form of r.e. */ |
248 static int *post_end; | |
249 static int *post_ptr; | |
250 | |
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251 static int nstate; /* Number of states in the NFA. Also used when |
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252 * executing. */ |
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253 static int istate; /* Index in the state vector, used in alloc_state() */ |
4444 | 254 |
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255 /* If not NULL match must end at this position */ |
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256 static save_se_T *nfa_endp = NULL; |
4444 | 257 |
258 static int nfa_regcomp_start __ARGS((char_u*expr, int re_flags)); | |
259 static int nfa_recognize_char_class __ARGS((char_u *start, char_u *end, int extra_newl)); | |
260 static int nfa_emit_equi_class __ARGS((int c, int neg)); | |
261 static int nfa_regatom __ARGS((void)); | |
262 static int nfa_regpiece __ARGS((void)); | |
263 static int nfa_regconcat __ARGS((void)); | |
264 static int nfa_regbranch __ARGS((void)); | |
265 static int nfa_reg __ARGS((int paren)); | |
266 #ifdef DEBUG | |
267 static void nfa_set_code __ARGS((int c)); | |
268 static void nfa_postfix_dump __ARGS((char_u *expr, int retval)); | |
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269 static void nfa_print_state __ARGS((FILE *debugf, nfa_state_T *state)); |
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270 static void nfa_print_state2 __ARGS((FILE *debugf, nfa_state_T *state, garray_T *indent)); |
4444 | 271 static void nfa_dump __ARGS((nfa_regprog_T *prog)); |
272 #endif | |
273 static int *re2post __ARGS((void)); | |
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274 static nfa_state_T *alloc_state __ARGS((int c, nfa_state_T *out, nfa_state_T *out1)); |
4444 | 275 static nfa_state_T *post2nfa __ARGS((int *postfix, int *end, int nfa_calc_size)); |
276 static int check_char_class __ARGS((int class, int c)); | |
277 static void st_error __ARGS((int *postfix, int *end, int *p)); | |
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278 static void nfa_save_listids __ARGS((nfa_regprog_T *prog, int *list)); |
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279 static void nfa_restore_listids __ARGS((nfa_regprog_T *prog, int *list)); |
4583
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280 static int nfa_re_num_cmp __ARGS((long_u val, int op, long_u pos)); |
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281 static long nfa_regtry __ARGS((nfa_regprog_T *prog, colnr_T col)); |
4444 | 282 static long nfa_regexec_both __ARGS((char_u *line, colnr_T col)); |
283 static regprog_T *nfa_regcomp __ARGS((char_u *expr, int re_flags)); | |
284 static int nfa_regexec __ARGS((regmatch_T *rmp, char_u *line, colnr_T col)); | |
285 static long nfa_regexec_multi __ARGS((regmmatch_T *rmp, win_T *win, buf_T *buf, linenr_T lnum, colnr_T col, proftime_T *tm)); | |
286 | |
287 /* helper functions used when doing re2post() ... regatom() parsing */ | |
288 #define EMIT(c) do { \ | |
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289 if (post_ptr >= post_end && realloc_post_list() == FAIL) \ |
4444 | 290 return FAIL; \ |
291 *post_ptr++ = c; \ | |
292 } while (0) | |
293 | |
294 /* | |
295 * Initialize internal variables before NFA compilation. | |
296 * Return OK on success, FAIL otherwise. | |
297 */ | |
298 static int | |
299 nfa_regcomp_start(expr, re_flags) | |
300 char_u *expr; | |
301 int re_flags; /* see vim_regcomp() */ | |
302 { | |
4458 | 303 size_t postfix_size; |
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304 int nstate_max; |
4444 | 305 |
306 nstate = 0; | |
307 istate = 0; | |
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308 /* A reasonable estimation for maximum size */ |
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309 nstate_max = (int)(STRLEN(expr) + 1) * 25; |
4444 | 310 |
4454 | 311 /* Some items blow up in size, such as [A-z]. Add more space for that. |
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312 * When it is still not enough realloc_post_list() will be used. */ |
4458 | 313 nstate_max += 1000; |
4454 | 314 |
315 /* Size for postfix representation of expr. */ | |
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316 postfix_size = sizeof(int) * nstate_max; |
4454 | 317 |
4444 | 318 post_start = (int *)lalloc(postfix_size, TRUE); |
319 if (post_start == NULL) | |
320 return FAIL; | |
321 vim_memset(post_start, 0, postfix_size); | |
322 post_ptr = post_start; | |
4454 | 323 post_end = post_start + nstate_max; |
4444 | 324 nfa_has_zend = FALSE; |
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325 nfa_has_backref = FALSE; |
4444 | 326 |
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327 /* shared with BT engine */ |
4444 | 328 regcomp_start(expr, re_flags); |
329 | |
330 return OK; | |
331 } | |
332 | |
333 /* | |
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334 * Allocate more space for post_start. Called when |
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335 * running above the estimated number of states. |
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336 */ |
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337 static int |
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338 realloc_post_list() |
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339 { |
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340 int nstate_max = (int)(post_end - post_start); |
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341 int new_max = nstate_max + 1000; |
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342 int *new_start; |
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343 int *old_start; |
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344 |
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345 new_start = (int *)lalloc(new_max * sizeof(int), TRUE); |
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346 if (new_start == NULL) |
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347 return FAIL; |
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348 mch_memmove(new_start, post_start, nstate_max * sizeof(int)); |
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349 vim_memset(new_start + nstate_max, 0, 1000 * sizeof(int)); |
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350 old_start = post_start; |
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351 post_start = new_start; |
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352 post_ptr = new_start + (post_ptr - old_start); |
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353 post_end = post_start + new_max; |
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354 vim_free(old_start); |
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355 return OK; |
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356 } |
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357 |
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358 /* |
4444 | 359 * Search between "start" and "end" and try to recognize a |
360 * character class in expanded form. For example [0-9]. | |
361 * On success, return the id the character class to be emitted. | |
362 * On failure, return 0 (=FAIL) | |
363 * Start points to the first char of the range, while end should point | |
364 * to the closing brace. | |
365 */ | |
366 static int | |
367 nfa_recognize_char_class(start, end, extra_newl) | |
368 char_u *start; | |
369 char_u *end; | |
370 int extra_newl; | |
371 { | |
372 int i; | |
373 /* Each of these variables takes up a char in "config[]", | |
374 * in the order they are here. */ | |
375 int not = FALSE, af = FALSE, AF = FALSE, az = FALSE, AZ = FALSE, | |
376 o7 = FALSE, o9 = FALSE, underscore = FALSE, newl = FALSE; | |
377 char_u *p; | |
378 #define NCONFIGS 16 | |
379 int classid[NCONFIGS] = { | |
380 NFA_DIGIT, NFA_NDIGIT, NFA_HEX, NFA_NHEX, | |
381 NFA_OCTAL, NFA_NOCTAL, NFA_WORD, NFA_NWORD, | |
382 NFA_HEAD, NFA_NHEAD, NFA_ALPHA, NFA_NALPHA, | |
383 NFA_LOWER, NFA_NLOWER, NFA_UPPER, NFA_NUPPER | |
384 }; | |
4450 | 385 char_u myconfig[10]; |
4444 | 386 char_u config[NCONFIGS][9] = { |
387 "000000100", /* digit */ | |
388 "100000100", /* non digit */ | |
389 "011000100", /* hex-digit */ | |
390 "111000100", /* non hex-digit */ | |
391 "000001000", /* octal-digit */ | |
392 "100001000", /* [^0-7] */ | |
393 "000110110", /* [0-9A-Za-z_] */ | |
394 "100110110", /* [^0-9A-Za-z_] */ | |
395 "000110010", /* head of word */ | |
396 "100110010", /* not head of word */ | |
397 "000110000", /* alphabetic char a-z */ | |
398 "100110000", /* non alphabetic char */ | |
399 "000100000", /* lowercase letter */ | |
400 "100100000", /* non lowercase */ | |
401 "000010000", /* uppercase */ | |
402 "100010000" /* non uppercase */ | |
403 }; | |
404 | |
405 if (extra_newl == TRUE) | |
406 newl = TRUE; | |
407 | |
408 if (*end != ']') | |
409 return FAIL; | |
410 p = start; | |
411 if (*p == '^') | |
412 { | |
413 not = TRUE; | |
414 p ++; | |
415 } | |
416 | |
417 while (p < end) | |
418 { | |
419 if (p + 2 < end && *(p + 1) == '-') | |
420 { | |
421 switch (*p) | |
422 { | |
423 case '0': | |
424 if (*(p + 2) == '9') | |
425 { | |
426 o9 = TRUE; | |
427 break; | |
428 } | |
429 else | |
430 if (*(p + 2) == '7') | |
431 { | |
432 o7 = TRUE; | |
433 break; | |
434 } | |
435 case 'a': | |
436 if (*(p + 2) == 'z') | |
437 { | |
438 az = TRUE; | |
439 break; | |
440 } | |
441 else | |
442 if (*(p + 2) == 'f') | |
443 { | |
444 af = TRUE; | |
445 break; | |
446 } | |
447 case 'A': | |
448 if (*(p + 2) == 'Z') | |
449 { | |
450 AZ = TRUE; | |
451 break; | |
452 } | |
453 else | |
454 if (*(p + 2) == 'F') | |
455 { | |
456 AF = TRUE; | |
457 break; | |
458 } | |
459 /* FALLTHROUGH */ | |
460 default: | |
461 return FAIL; | |
462 } | |
463 p += 3; | |
464 } | |
465 else if (p + 1 < end && *p == '\\' && *(p + 1) == 'n') | |
466 { | |
467 newl = TRUE; | |
468 p += 2; | |
469 } | |
470 else if (*p == '_') | |
471 { | |
472 underscore = TRUE; | |
473 p ++; | |
474 } | |
475 else if (*p == '\n') | |
476 { | |
477 newl = TRUE; | |
478 p ++; | |
479 } | |
480 else | |
481 return FAIL; | |
482 } /* while (p < end) */ | |
483 | |
484 if (p != end) | |
485 return FAIL; | |
486 | |
487 /* build the config that represents the ranges we gathered */ | |
488 STRCPY(myconfig, "000000000"); | |
489 if (not == TRUE) | |
490 myconfig[0] = '1'; | |
491 if (af == TRUE) | |
492 myconfig[1] = '1'; | |
493 if (AF == TRUE) | |
494 myconfig[2] = '1'; | |
495 if (az == TRUE) | |
496 myconfig[3] = '1'; | |
497 if (AZ == TRUE) | |
498 myconfig[4] = '1'; | |
499 if (o7 == TRUE) | |
500 myconfig[5] = '1'; | |
501 if (o9 == TRUE) | |
502 myconfig[6] = '1'; | |
503 if (underscore == TRUE) | |
504 myconfig[7] = '1'; | |
505 if (newl == TRUE) | |
506 { | |
507 myconfig[8] = '1'; | |
508 extra_newl = ADD_NL; | |
509 } | |
510 /* try to recognize character classes */ | |
511 for (i = 0; i < NCONFIGS; i++) | |
4450 | 512 if (STRNCMP(myconfig, config[i], 8) == 0) |
4444 | 513 return classid[i] + extra_newl; |
514 | |
515 /* fallthrough => no success so far */ | |
516 return FAIL; | |
517 | |
518 #undef NCONFIGS | |
519 } | |
520 | |
521 /* | |
522 * Produce the bytes for equivalence class "c". | |
523 * Currently only handles latin1, latin9 and utf-8. | |
524 * Emits bytes in postfix notation: 'a,b,NFA_OR,c,NFA_OR' is | |
525 * equivalent to 'a OR b OR c' | |
526 * | |
527 * NOTE! When changing this function, also update reg_equi_class() | |
528 */ | |
529 static int | |
530 nfa_emit_equi_class(c, neg) | |
531 int c; | |
532 int neg; | |
533 { | |
534 int first = TRUE; | |
535 int glue = neg == TRUE ? NFA_CONCAT : NFA_OR; | |
536 #define EMIT2(c) \ | |
537 EMIT(c); \ | |
538 if (neg == TRUE) { \ | |
539 EMIT(NFA_NOT); \ | |
540 } \ | |
541 if (first == FALSE) \ | |
542 EMIT(glue); \ | |
543 else \ | |
544 first = FALSE; \ | |
545 | |
546 #ifdef FEAT_MBYTE | |
547 if (enc_utf8 || STRCMP(p_enc, "latin1") == 0 | |
548 || STRCMP(p_enc, "iso-8859-15") == 0) | |
549 #endif | |
550 { | |
551 switch (c) | |
552 { | |
553 case 'A': case '\300': case '\301': case '\302': | |
554 case '\303': case '\304': case '\305': | |
555 EMIT2('A'); EMIT2('\300'); EMIT2('\301'); | |
556 EMIT2('\302'); EMIT2('\303'); EMIT2('\304'); | |
557 EMIT2('\305'); | |
558 return OK; | |
559 | |
560 case 'C': case '\307': | |
561 EMIT2('C'); EMIT2('\307'); | |
562 return OK; | |
563 | |
564 case 'E': case '\310': case '\311': case '\312': case '\313': | |
565 EMIT2('E'); EMIT2('\310'); EMIT2('\311'); | |
566 EMIT2('\312'); EMIT2('\313'); | |
567 return OK; | |
568 | |
569 case 'I': case '\314': case '\315': case '\316': case '\317': | |
570 EMIT2('I'); EMIT2('\314'); EMIT2('\315'); | |
571 EMIT2('\316'); EMIT2('\317'); | |
572 return OK; | |
573 | |
574 case 'N': case '\321': | |
575 EMIT2('N'); EMIT2('\321'); | |
576 return OK; | |
577 | |
578 case 'O': case '\322': case '\323': case '\324': case '\325': | |
579 case '\326': | |
580 EMIT2('O'); EMIT2('\322'); EMIT2('\323'); | |
581 EMIT2('\324'); EMIT2('\325'); EMIT2('\326'); | |
582 return OK; | |
583 | |
584 case 'U': case '\331': case '\332': case '\333': case '\334': | |
585 EMIT2('U'); EMIT2('\331'); EMIT2('\332'); | |
586 EMIT2('\333'); EMIT2('\334'); | |
587 return OK; | |
588 | |
589 case 'Y': case '\335': | |
590 EMIT2('Y'); EMIT2('\335'); | |
591 return OK; | |
592 | |
593 case 'a': case '\340': case '\341': case '\342': | |
594 case '\343': case '\344': case '\345': | |
595 EMIT2('a'); EMIT2('\340'); EMIT2('\341'); | |
596 EMIT2('\342'); EMIT2('\343'); EMIT2('\344'); | |
597 EMIT2('\345'); | |
598 return OK; | |
599 | |
600 case 'c': case '\347': | |
601 EMIT2('c'); EMIT2('\347'); | |
602 return OK; | |
603 | |
604 case 'e': case '\350': case '\351': case '\352': case '\353': | |
605 EMIT2('e'); EMIT2('\350'); EMIT2('\351'); | |
606 EMIT2('\352'); EMIT2('\353'); | |
607 return OK; | |
608 | |
609 case 'i': case '\354': case '\355': case '\356': case '\357': | |
610 EMIT2('i'); EMIT2('\354'); EMIT2('\355'); | |
611 EMIT2('\356'); EMIT2('\357'); | |
612 return OK; | |
613 | |
614 case 'n': case '\361': | |
615 EMIT2('n'); EMIT2('\361'); | |
616 return OK; | |
617 | |
618 case 'o': case '\362': case '\363': case '\364': case '\365': | |
619 case '\366': | |
620 EMIT2('o'); EMIT2('\362'); EMIT2('\363'); | |
621 EMIT2('\364'); EMIT2('\365'); EMIT2('\366'); | |
622 return OK; | |
623 | |
624 case 'u': case '\371': case '\372': case '\373': case '\374': | |
625 EMIT2('u'); EMIT2('\371'); EMIT2('\372'); | |
626 EMIT2('\373'); EMIT2('\374'); | |
627 return OK; | |
628 | |
629 case 'y': case '\375': case '\377': | |
630 EMIT2('y'); EMIT2('\375'); EMIT2('\377'); | |
631 return OK; | |
632 | |
633 default: | |
634 return FAIL; | |
635 } | |
636 } | |
637 | |
638 EMIT(c); | |
639 return OK; | |
640 #undef EMIT2 | |
641 } | |
642 | |
643 /* | |
644 * Code to parse regular expression. | |
645 * | |
646 * We try to reuse parsing functions in regexp.c to | |
647 * minimize surprise and keep the syntax consistent. | |
648 */ | |
649 | |
650 /* | |
651 * Parse the lowest level. | |
652 * | |
653 * An atom can be one of a long list of items. Many atoms match one character | |
654 * in the text. It is often an ordinary character or a character class. | |
655 * Braces can be used to make a pattern into an atom. The "\z(\)" construct | |
656 * is only for syntax highlighting. | |
657 * | |
658 * atom ::= ordinary-atom | |
659 * or \( pattern \) | |
660 * or \%( pattern \) | |
661 * or \z( pattern \) | |
662 */ | |
663 static int | |
664 nfa_regatom() | |
665 { | |
666 int c; | |
667 int charclass; | |
668 int equiclass; | |
669 int collclass; | |
670 int got_coll_char; | |
671 char_u *p; | |
672 char_u *endp; | |
673 #ifdef FEAT_MBYTE | |
674 char_u *old_regparse = regparse; | |
675 #endif | |
676 int extra = 0; | |
677 int first; | |
678 int emit_range; | |
679 int negated; | |
680 int result; | |
681 int startc = -1; | |
682 int endc = -1; | |
683 int oldstartc = -1; | |
684 int cpo_lit; /* 'cpoptions' contains 'l' flag */ | |
685 int cpo_bsl; /* 'cpoptions' contains '\' flag */ | |
686 int glue; /* ID that will "glue" nodes together */ | |
687 | |
688 cpo_lit = vim_strchr(p_cpo, CPO_LITERAL) != NULL; | |
689 cpo_bsl = vim_strchr(p_cpo, CPO_BACKSL) != NULL; | |
690 | |
691 c = getchr(); | |
692 switch (c) | |
693 { | |
4543
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694 case NUL: |
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695 syntax_error = TRUE; |
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696 EMSG_RET_FAIL(_("E865: (NFA) Regexp end encountered prematurely")); |
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697 |
4444 | 698 case Magic('^'): |
699 EMIT(NFA_BOL); | |
700 break; | |
701 | |
702 case Magic('$'): | |
703 EMIT(NFA_EOL); | |
704 #if defined(FEAT_SYN_HL) || defined(PROTO) | |
705 had_eol = TRUE; | |
706 #endif | |
707 break; | |
708 | |
709 case Magic('<'): | |
710 EMIT(NFA_BOW); | |
711 break; | |
712 | |
713 case Magic('>'): | |
714 EMIT(NFA_EOW); | |
715 break; | |
716 | |
717 case Magic('_'): | |
718 c = no_Magic(getchr()); | |
719 if (c == '^') /* "\_^" is start-of-line */ | |
720 { | |
721 EMIT(NFA_BOL); | |
722 break; | |
723 } | |
724 if (c == '$') /* "\_$" is end-of-line */ | |
725 { | |
726 EMIT(NFA_EOL); | |
727 #if defined(FEAT_SYN_HL) || defined(PROTO) | |
728 had_eol = TRUE; | |
729 #endif | |
730 break; | |
731 } | |
732 | |
733 extra = ADD_NL; | |
734 | |
735 /* "\_[" is collection plus newline */ | |
736 if (c == '[') | |
4517
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737 goto collection; |
4444 | 738 |
739 /* "\_x" is character class plus newline */ | |
740 /*FALLTHROUGH*/ | |
741 | |
742 /* | |
743 * Character classes. | |
744 */ | |
745 case Magic('.'): | |
746 case Magic('i'): | |
747 case Magic('I'): | |
748 case Magic('k'): | |
749 case Magic('K'): | |
750 case Magic('f'): | |
751 case Magic('F'): | |
752 case Magic('p'): | |
753 case Magic('P'): | |
754 case Magic('s'): | |
755 case Magic('S'): | |
756 case Magic('d'): | |
757 case Magic('D'): | |
758 case Magic('x'): | |
759 case Magic('X'): | |
760 case Magic('o'): | |
761 case Magic('O'): | |
762 case Magic('w'): | |
763 case Magic('W'): | |
764 case Magic('h'): | |
765 case Magic('H'): | |
766 case Magic('a'): | |
767 case Magic('A'): | |
768 case Magic('l'): | |
769 case Magic('L'): | |
770 case Magic('u'): | |
771 case Magic('U'): | |
772 p = vim_strchr(classchars, no_Magic(c)); | |
773 if (p == NULL) | |
774 { | |
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775 EMSGN("INTERNAL: Unknown character class char: %ld", c); |
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776 return FAIL; |
4444 | 777 } |
778 #ifdef FEAT_MBYTE | |
779 /* When '.' is followed by a composing char ignore the dot, so that | |
780 * the composing char is matched here. */ | |
781 if (enc_utf8 && c == Magic('.') && utf_iscomposing(peekchr())) | |
782 { | |
4535
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783 old_regparse = regparse; |
4444 | 784 c = getchr(); |
785 goto nfa_do_multibyte; | |
786 } | |
787 #endif | |
788 EMIT(nfa_classcodes[p - classchars]); | |
789 if (extra == ADD_NL) | |
790 { | |
791 EMIT(NFA_NEWL); | |
792 EMIT(NFA_OR); | |
793 regflags |= RF_HASNL; | |
794 } | |
795 break; | |
796 | |
797 case Magic('n'): | |
798 if (reg_string) | |
799 /* In a string "\n" matches a newline character. */ | |
800 EMIT(NL); | |
801 else | |
802 { | |
803 /* In buffer text "\n" matches the end of a line. */ | |
804 EMIT(NFA_NEWL); | |
805 regflags |= RF_HASNL; | |
806 } | |
807 break; | |
808 | |
809 case Magic('('): | |
810 if (nfa_reg(REG_PAREN) == FAIL) | |
811 return FAIL; /* cascaded error */ | |
812 break; | |
813 | |
814 case Magic('|'): | |
815 case Magic('&'): | |
816 case Magic(')'): | |
817 syntax_error = TRUE; | |
4450 | 818 EMSGN(_(e_misplaced), no_Magic(c)); |
4444 | 819 return FAIL; |
820 | |
821 case Magic('='): | |
822 case Magic('?'): | |
823 case Magic('+'): | |
824 case Magic('@'): | |
825 case Magic('*'): | |
826 case Magic('{'): | |
827 /* these should follow an atom, not form an atom */ | |
828 syntax_error = TRUE; | |
4450 | 829 EMSGN(_(e_misplaced), no_Magic(c)); |
4444 | 830 return FAIL; |
831 | |
832 case Magic('~'): /* previous substitute pattern */ | |
4571
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833 /* TODO: Not supported yet */ |
4444 | 834 return FAIL; |
835 | |
4647
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836 case Magic('1'): |
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837 case Magic('2'): |
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838 case Magic('3'): |
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839 case Magic('4'): |
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840 case Magic('5'): |
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841 case Magic('6'): |
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842 case Magic('7'): |
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843 case Magic('8'): |
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844 case Magic('9'): |
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845 EMIT(NFA_BACKREF1 + (no_Magic(c) - '1')); |
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846 nfa_has_backref = TRUE; |
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847 break; |
4444 | 848 |
849 case Magic('z'): | |
850 c = no_Magic(getchr()); | |
851 switch (c) | |
852 { | |
853 case 's': | |
854 EMIT(NFA_ZSTART); | |
855 break; | |
856 case 'e': | |
857 EMIT(NFA_ZEND); | |
858 nfa_has_zend = TRUE; | |
4569
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859 break; |
4686
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860 #ifdef FEAT_SYN_HL |
4444 | 861 case '1': |
862 case '2': | |
863 case '3': | |
864 case '4': | |
865 case '5': | |
866 case '6': | |
867 case '7': | |
868 case '8': | |
869 case '9': | |
4686
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870 /* \z1...\z9 */ |
4688
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871 if (reg_do_extmatch != REX_USE) |
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872 EMSG_RET_FAIL(_(e_z1_not_allowed)); |
4686
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873 EMIT(NFA_ZREF1 + (no_Magic(c) - '1')); |
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874 /* No need to set nfa_has_backref, the sub-matches don't |
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875 * change when \z1 .. \z9 maches or not. */ |
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876 re_has_z = REX_USE; |
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877 break; |
4444 | 878 case '(': |
4686
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879 /* \z( */ |
4688
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880 if (reg_do_extmatch != REX_SET) |
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881 EMSG_RET_FAIL(_(e_z_not_allowed)); |
4686
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882 if (nfa_reg(REG_ZPAREN) == FAIL) |
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883 return FAIL; /* cascaded error */ |
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884 re_has_z = REX_SET; |
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885 break; |
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886 #endif |
4444 | 887 default: |
888 syntax_error = TRUE; | |
4450 | 889 EMSGN(_("E867: (NFA) Unknown operator '\\z%c'"), |
4444 | 890 no_Magic(c)); |
891 return FAIL; | |
892 } | |
893 break; | |
894 | |
895 case Magic('%'): | |
896 c = no_Magic(getchr()); | |
897 switch (c) | |
898 { | |
899 /* () without a back reference */ | |
900 case '(': | |
901 if (nfa_reg(REG_NPAREN) == FAIL) | |
902 return FAIL; | |
903 EMIT(NFA_NOPEN); | |
904 break; | |
905 | |
906 case 'd': /* %d123 decimal */ | |
907 case 'o': /* %o123 octal */ | |
908 case 'x': /* %xab hex 2 */ | |
909 case 'u': /* %uabcd hex 4 */ | |
910 case 'U': /* %U1234abcd hex 8 */ | |
4543
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911 { |
4549
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912 int nr; |
4543
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913 |
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914 switch (c) |
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915 { |
4549
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916 case 'd': nr = getdecchrs(); break; |
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917 case 'o': nr = getoctchrs(); break; |
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918 case 'x': nr = gethexchrs(2); break; |
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919 case 'u': nr = gethexchrs(4); break; |
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920 case 'U': nr = gethexchrs(8); break; |
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921 default: nr = -1; break; |
4543
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922 } |
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923 |
4549
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924 if (nr < 0) |
4543
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925 EMSG2_RET_FAIL( |
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926 _("E678: Invalid character after %s%%[dxouU]"), |
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927 reg_magic == MAGIC_ALL); |
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928 /* TODO: what if a composing character follows? */ |
4549
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929 EMIT(nr); |
4543
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930 } |
4444 | 931 break; |
932 | |
933 /* Catch \%^ and \%$ regardless of where they appear in the | |
934 * pattern -- regardless of whether or not it makes sense. */ | |
935 case '^': | |
936 EMIT(NFA_BOF); | |
937 break; | |
938 | |
939 case '$': | |
940 EMIT(NFA_EOF); | |
941 break; | |
942 | |
943 case '#': | |
4583
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944 EMIT(NFA_CURSOR); |
4444 | 945 break; |
946 | |
947 case 'V': | |
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948 /* TODO: not supported yet */ |
4444 | 949 return FAIL; |
950 break; | |
951 | |
952 case '[': | |
4571
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|
953 /* TODO: \%[abc] not supported yet */ |
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954 return FAIL; |
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|
955 |
4444 | 956 default: |
4583
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957 { |
4655
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4651
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|
958 int n = 0; |
4583
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959 int cmp = c; |
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960 |
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961 if (c == '<' || c == '>') |
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962 c = getchr(); |
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963 while (VIM_ISDIGIT(c)) |
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|
964 { |
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965 n = n * 10 + (c - '0'); |
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966 c = getchr(); |
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967 } |
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968 if (c == 'l' || c == 'c' || c == 'v') |
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969 { |
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970 EMIT(n); |
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971 if (c == 'l') |
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972 EMIT(cmp == '<' ? NFA_LNUM_LT : |
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973 cmp == '>' ? NFA_LNUM_GT : NFA_LNUM); |
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974 else if (c == 'c') |
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975 EMIT(cmp == '<' ? NFA_COL_LT : |
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976 cmp == '>' ? NFA_COL_GT : NFA_COL); |
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977 else |
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978 EMIT(cmp == '<' ? NFA_VCOL_LT : |
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979 cmp == '>' ? NFA_VCOL_GT : NFA_VCOL); |
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980 break; |
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981 } |
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982 else if (c == '\'') |
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983 /* TODO: \%'m not supported yet */ |
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984 return FAIL; |
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985 } |
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986 syntax_error = TRUE; |
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|
987 EMSGN(_("E867: (NFA) Unknown operator '\\%%%c'"), |
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988 no_Magic(c)); |
4444 | 989 return FAIL; |
990 } | |
991 break; | |
992 | |
993 case Magic('['): | |
4517
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994 collection: |
4444 | 995 /* |
996 * Glue is emitted between several atoms from the []. | |
997 * It is either NFA_OR, or NFA_CONCAT. | |
998 * | |
999 * [abc] expands to 'a b NFA_OR c NFA_OR' (in postfix notation) | |
1000 * [^abc] expands to 'a NFA_NOT b NFA_NOT NFA_CONCAT c NFA_NOT | |
1001 * NFA_CONCAT NFA_END_NEG_RANGE NFA_CONCAT' (in postfix | |
1002 * notation) | |
1003 * | |
1004 */ | |
1005 | |
1006 | |
1007 /* Emit negation atoms, if needed. | |
1008 * The CONCAT below merges the NOT with the previous node. */ | |
1009 #define TRY_NEG() \ | |
1010 if (negated == TRUE) \ | |
1011 { \ | |
1012 EMIT(NFA_NOT); \ | |
1013 } | |
1014 | |
1015 /* Emit glue between important nodes : CONCAT or OR. */ | |
1016 #define EMIT_GLUE() \ | |
1017 if (first == FALSE) \ | |
1018 EMIT(glue); \ | |
1019 else \ | |
1020 first = FALSE; | |
1021 | |
1022 p = regparse; | |
1023 endp = skip_anyof(p); | |
1024 if (*endp == ']') | |
1025 { | |
1026 /* | |
1027 * Try to reverse engineer character classes. For example, | |
1028 * recognize that [0-9] stands for \d and [A-Za-z_] with \h, | |
1029 * and perform the necessary substitutions in the NFA. | |
1030 */ | |
1031 result = nfa_recognize_char_class(regparse, endp, | |
1032 extra == ADD_NL); | |
1033 if (result != FAIL) | |
1034 { | |
1035 if (result >= NFA_DIGIT && result <= NFA_NUPPER) | |
1036 EMIT(result); | |
1037 else /* must be char class + newline */ | |
1038 { | |
1039 EMIT(result - ADD_NL); | |
1040 EMIT(NFA_NEWL); | |
1041 EMIT(NFA_OR); | |
1042 } | |
1043 regparse = endp; | |
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1044 mb_ptr_adv(regparse); |
4444 | 1045 return OK; |
1046 } | |
1047 /* | |
1048 * Failed to recognize a character class. Use the simple | |
1049 * version that turns [abc] into 'a' OR 'b' OR 'c' | |
1050 */ | |
1051 startc = endc = oldstartc = -1; | |
1052 first = TRUE; /* Emitting first atom in this sequence? */ | |
1053 negated = FALSE; | |
1054 glue = NFA_OR; | |
1055 if (*regparse == '^') /* negated range */ | |
1056 { | |
1057 negated = TRUE; | |
1058 glue = NFA_CONCAT; | |
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1059 mb_ptr_adv(regparse); |
4444 | 1060 } |
1061 if (*regparse == '-') | |
1062 { | |
1063 startc = '-'; | |
1064 EMIT(startc); | |
1065 TRY_NEG(); | |
1066 EMIT_GLUE(); | |
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1067 mb_ptr_adv(regparse); |
4444 | 1068 } |
1069 /* Emit the OR branches for each character in the [] */ | |
1070 emit_range = FALSE; | |
1071 while (regparse < endp) | |
1072 { | |
1073 oldstartc = startc; | |
1074 startc = -1; | |
1075 got_coll_char = FALSE; | |
1076 if (*regparse == '[') | |
1077 { | |
1078 /* Check for [: :], [= =], [. .] */ | |
1079 equiclass = collclass = 0; | |
1080 charclass = get_char_class(®parse); | |
1081 if (charclass == CLASS_NONE) | |
1082 { | |
1083 equiclass = get_equi_class(®parse); | |
1084 if (equiclass == 0) | |
1085 collclass = get_coll_element(®parse); | |
1086 } | |
1087 | |
1088 /* Character class like [:alpha:] */ | |
1089 if (charclass != CLASS_NONE) | |
1090 { | |
1091 switch (charclass) | |
1092 { | |
1093 case CLASS_ALNUM: | |
1094 EMIT(NFA_CLASS_ALNUM); | |
1095 break; | |
1096 case CLASS_ALPHA: | |
1097 EMIT(NFA_CLASS_ALPHA); | |
1098 break; | |
1099 case CLASS_BLANK: | |
1100 EMIT(NFA_CLASS_BLANK); | |
1101 break; | |
1102 case CLASS_CNTRL: | |
1103 EMIT(NFA_CLASS_CNTRL); | |
1104 break; | |
1105 case CLASS_DIGIT: | |
1106 EMIT(NFA_CLASS_DIGIT); | |
1107 break; | |
1108 case CLASS_GRAPH: | |
1109 EMIT(NFA_CLASS_GRAPH); | |
1110 break; | |
1111 case CLASS_LOWER: | |
1112 EMIT(NFA_CLASS_LOWER); | |
1113 break; | |
1114 case CLASS_PRINT: | |
1115 EMIT(NFA_CLASS_PRINT); | |
1116 break; | |
1117 case CLASS_PUNCT: | |
1118 EMIT(NFA_CLASS_PUNCT); | |
1119 break; | |
1120 case CLASS_SPACE: | |
1121 EMIT(NFA_CLASS_SPACE); | |
1122 break; | |
1123 case CLASS_UPPER: | |
1124 EMIT(NFA_CLASS_UPPER); | |
1125 break; | |
1126 case CLASS_XDIGIT: | |
1127 EMIT(NFA_CLASS_XDIGIT); | |
1128 break; | |
1129 case CLASS_TAB: | |
1130 EMIT(NFA_CLASS_TAB); | |
1131 break; | |
1132 case CLASS_RETURN: | |
1133 EMIT(NFA_CLASS_RETURN); | |
1134 break; | |
1135 case CLASS_BACKSPACE: | |
1136 EMIT(NFA_CLASS_BACKSPACE); | |
1137 break; | |
1138 case CLASS_ESCAPE: | |
1139 EMIT(NFA_CLASS_ESCAPE); | |
1140 break; | |
1141 } | |
1142 TRY_NEG(); | |
1143 EMIT_GLUE(); | |
1144 continue; | |
1145 } | |
1146 /* Try equivalence class [=a=] and the like */ | |
1147 if (equiclass != 0) | |
1148 { | |
1149 result = nfa_emit_equi_class(equiclass, negated); | |
1150 if (result == FAIL) | |
1151 { | |
1152 /* should never happen */ | |
1153 EMSG_RET_FAIL(_("E868: Error building NFA with equivalence class!")); | |
1154 } | |
1155 EMIT_GLUE(); | |
1156 continue; | |
1157 } | |
1158 /* Try collating class like [. .] */ | |
1159 if (collclass != 0) | |
1160 { | |
1161 startc = collclass; /* allow [.a.]-x as a range */ | |
1162 /* Will emit the proper atom at the end of the | |
1163 * while loop. */ | |
1164 } | |
1165 } | |
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1166 /* Try a range like 'a-x' or '\t-z'. Also allows '-' as a |
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1167 * start character. */ |
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1168 if (*regparse == '-' && oldstartc != -1) |
4444 | 1169 { |
1170 emit_range = TRUE; | |
1171 startc = oldstartc; | |
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1172 mb_ptr_adv(regparse); |
4444 | 1173 continue; /* reading the end of the range */ |
1174 } | |
1175 | |
1176 /* Now handle simple and escaped characters. | |
1177 * Only "\]", "\^", "\]" and "\\" are special in Vi. Vim | |
1178 * accepts "\t", "\e", etc., but only when the 'l' flag in | |
1179 * 'cpoptions' is not included. | |
1180 * Posix doesn't recognize backslash at all. | |
1181 */ | |
1182 if (*regparse == '\\' | |
1183 && !cpo_bsl | |
1184 && regparse + 1 <= endp | |
1185 && (vim_strchr(REGEXP_INRANGE, regparse[1]) != NULL | |
1186 || (!cpo_lit | |
1187 && vim_strchr(REGEXP_ABBR, regparse[1]) | |
1188 != NULL) | |
1189 ) | |
1190 ) | |
1191 { | |
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1192 mb_ptr_adv(regparse); |
4444 | 1193 |
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1194 if (*regparse == 'n') |
4444 | 1195 startc = reg_string ? NL : NFA_NEWL; |
1196 else | |
1197 if (*regparse == 'd' | |
1198 || *regparse == 'o' | |
1199 || *regparse == 'x' | |
1200 || *regparse == 'u' | |
1201 || *regparse == 'U' | |
1202 ) | |
1203 { | |
1204 /* TODO(RE) This needs more testing */ | |
1205 startc = coll_get_char(); | |
1206 got_coll_char = TRUE; | |
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1207 mb_ptr_back(old_regparse, regparse); |
4444 | 1208 } |
1209 else | |
1210 { | |
1211 /* \r,\t,\e,\b */ | |
1212 startc = backslash_trans(*regparse); | |
1213 } | |
1214 } | |
1215 | |
1216 /* Normal printable char */ | |
1217 if (startc == -1) | |
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1218 startc = PTR2CHAR(regparse); |
4444 | 1219 |
1220 /* Previous char was '-', so this char is end of range. */ | |
1221 if (emit_range) | |
1222 { | |
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1223 endc = startc; |
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1224 startc = oldstartc; |
4444 | 1225 if (startc > endc) |
1226 EMSG_RET_FAIL(_(e_invrange)); | |
1227 #ifdef FEAT_MBYTE | |
1228 if (has_mbyte && ((*mb_char2len)(startc) > 1 | |
1229 || (*mb_char2len)(endc) > 1)) | |
1230 { | |
1231 if (endc > startc + 256) | |
1232 EMSG_RET_FAIL(_(e_invrange)); | |
1233 /* Emit the range. "startc" was already emitted, so | |
1234 * skip it. */ | |
1235 for (c = startc + 1; c <= endc; c++) | |
1236 { | |
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1237 EMIT(c); |
4444 | 1238 TRY_NEG(); |
1239 EMIT_GLUE(); | |
1240 } | |
1241 } | |
1242 else | |
1243 #endif | |
1244 { | |
1245 #ifdef EBCDIC | |
1246 int alpha_only = FALSE; | |
1247 | |
1248 /* for alphabetical range skip the gaps | |
1249 * 'i'-'j', 'r'-'s', 'I'-'J' and 'R'-'S'. */ | |
1250 if (isalpha(startc) && isalpha(endc)) | |
1251 alpha_only = TRUE; | |
1252 #endif | |
1253 /* Emit the range. "startc" was already emitted, so | |
1254 * skip it. */ | |
1255 for (c = startc + 1; c <= endc; c++) | |
1256 #ifdef EBCDIC | |
1257 if (!alpha_only || isalpha(startc)) | |
1258 #endif | |
1259 { | |
1260 EMIT(c); | |
1261 TRY_NEG(); | |
1262 EMIT_GLUE(); | |
1263 } | |
1264 } | |
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1265 emit_range = FALSE; |
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1266 startc = -1; |
4444 | 1267 } |
1268 else | |
1269 { | |
1270 /* | |
1271 * This char (startc) is not part of a range. Just | |
1272 * emit it. | |
1273 * | |
1274 * Normally, simply emit startc. But if we get char | |
1275 * code=0 from a collating char, then replace it with | |
1276 * 0x0a. | |
1277 * | |
1278 * This is needed to completely mimic the behaviour of | |
1279 * the backtracking engine. | |
1280 */ | |
1281 if (got_coll_char == TRUE && startc == 0) | |
1282 EMIT(0x0a); | |
1283 else | |
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1284 EMIT(startc); |
4444 | 1285 TRY_NEG(); |
1286 EMIT_GLUE(); | |
1287 } | |
1288 | |
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1289 mb_ptr_adv(regparse); |
4444 | 1290 } /* while (p < endp) */ |
1291 | |
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1292 mb_ptr_back(old_regparse, regparse); |
4444 | 1293 if (*regparse == '-') /* if last, '-' is just a char */ |
1294 { | |
1295 EMIT('-'); | |
1296 TRY_NEG(); | |
1297 EMIT_GLUE(); | |
1298 } | |
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1299 mb_ptr_adv(regparse); |
4444 | 1300 |
1301 /* skip the trailing ] */ | |
1302 regparse = endp; | |
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1303 mb_ptr_adv(regparse); |
4444 | 1304 if (negated == TRUE) |
1305 { | |
1306 /* Mark end of negated char range */ | |
1307 EMIT(NFA_END_NEG_RANGE); | |
1308 EMIT(NFA_CONCAT); | |
1309 } | |
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1310 |
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|
1311 /* \_[] also matches \n but it's not negated */ |
5679b8ddd8cc
updated for version 7.3.1055
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|
1312 if (extra == ADD_NL) |
5679b8ddd8cc
updated for version 7.3.1055
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|
1313 { |
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updated for version 7.3.1055
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|
1314 EMIT(reg_string ? NL : NFA_NEWL); |
5679b8ddd8cc
updated for version 7.3.1055
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|
1315 EMIT(NFA_OR); |
5679b8ddd8cc
updated for version 7.3.1055
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|
1316 } |
5679b8ddd8cc
updated for version 7.3.1055
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diff
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|
1317 |
4444 | 1318 return OK; |
4529
432a6b8c7d93
updated for version 7.3.1012
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4527
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|
1319 } /* if exists closing ] */ |
432a6b8c7d93
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|
1320 |
432a6b8c7d93
updated for version 7.3.1012
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diff
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|
1321 if (reg_strict) |
4444 | 1322 { |
1323 syntax_error = TRUE; | |
1324 EMSG_RET_FAIL(_(e_missingbracket)); | |
1325 } | |
4529
432a6b8c7d93
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|
1326 /* FALLTHROUGH */ |
432a6b8c7d93
updated for version 7.3.1012
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diff
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|
1327 |
4444 | 1328 default: |
1329 { | |
1330 #ifdef FEAT_MBYTE | |
1331 int plen; | |
1332 | |
1333 nfa_do_multibyte: | |
4543
08ac46980953
updated for version 7.3.1019
Bram Moolenaar <bram@vim.org>
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4541
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|
1334 /* plen is length of current char with composing chars */ |
08ac46980953
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|
1335 if (enc_utf8 && ((*mb_char2len)(c) |
08ac46980953
updated for version 7.3.1019
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4541
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|
1336 != (plen = (*mb_ptr2len)(old_regparse)) |
08ac46980953
updated for version 7.3.1019
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4541
diff
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|
1337 || utf_iscomposing(c))) |
4444 | 1338 { |
4549
849180347ac3
updated for version 7.3.1022
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4547
diff
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|
1339 int i = 0; |
849180347ac3
updated for version 7.3.1022
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4547
diff
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|
1340 |
4535
45f97c349537
updated for version 7.3.1015
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4533
diff
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|
1341 /* A base character plus composing characters, or just one |
45f97c349537
updated for version 7.3.1015
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4533
diff
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|
1342 * or more composing characters. |
4527
55bcaa1d2749
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|
1343 * This requires creating a separate atom as if enclosing |
55bcaa1d2749
updated for version 7.3.1011
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|
1344 * the characters in (), where NFA_COMPOSING is the ( and |
55bcaa1d2749
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|
1345 * NFA_END_COMPOSING is the ). Note that right now we are |
4444 | 1346 * building the postfix form, not the NFA itself; |
1347 * a composing char could be: a, b, c, NFA_COMPOSING | |
4527
55bcaa1d2749
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|
1348 * where 'b' and 'c' are chars with codes > 256. */ |
55bcaa1d2749
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|
1349 for (;;) |
55bcaa1d2749
updated for version 7.3.1011
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|
1350 { |
55bcaa1d2749
updated for version 7.3.1011
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|
1351 EMIT(c); |
55bcaa1d2749
updated for version 7.3.1011
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|
1352 if (i > 0) |
55bcaa1d2749
updated for version 7.3.1011
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|
1353 EMIT(NFA_CONCAT); |
4529
432a6b8c7d93
updated for version 7.3.1012
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4527
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|
1354 if ((i += utf_char2len(c)) >= plen) |
4527
55bcaa1d2749
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|
1355 break; |
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updated for version 7.3.1011
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|
1356 c = utf_ptr2char(old_regparse + i); |
55bcaa1d2749
updated for version 7.3.1011
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|
1357 } |
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diff
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|
1358 EMIT(NFA_COMPOSING); |
4444 | 1359 regparse = old_regparse + plen; |
1360 } | |
1361 else | |
1362 #endif | |
1363 { | |
1364 c = no_Magic(c); | |
1365 EMIT(c); | |
1366 } | |
1367 return OK; | |
1368 } | |
1369 } | |
1370 | |
1371 #undef TRY_NEG | |
1372 #undef EMIT_GLUE | |
1373 | |
1374 return OK; | |
1375 } | |
1376 | |
1377 /* | |
1378 * Parse something followed by possible [*+=]. | |
1379 * | |
1380 * A piece is an atom, possibly followed by a multi, an indication of how many | |
1381 * times the atom can be matched. Example: "a*" matches any sequence of "a" | |
1382 * characters: "", "a", "aa", etc. | |
1383 * | |
1384 * piece ::= atom | |
1385 * or atom multi | |
1386 */ | |
1387 static int | |
1388 nfa_regpiece() | |
1389 { | |
1390 int i; | |
1391 int op; | |
1392 int ret; | |
1393 long minval, maxval; | |
1394 int greedy = TRUE; /* Braces are prefixed with '-' ? */ | |
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|
1395 parse_state_T old_state; |
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|
1396 parse_state_T new_state; |
4444 | 1397 int c2; |
4651
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|
1398 int old_post_pos; |
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|
1399 int my_post_start; |
4444 | 1400 int quest; |
1401 | |
4679
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|
1402 /* Save the current parse state, so that we can use it if <atom>{m,n} is |
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|
1403 * next. */ |
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|
1404 save_parse_state(&old_state); |
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|
1405 |
4444 | 1406 /* store current pos in the postfix form, for \{m,n} involving 0s */ |
4651
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|
1407 my_post_start = (int)(post_ptr - post_start); |
4444 | 1408 |
1409 ret = nfa_regatom(); | |
1410 if (ret == FAIL) | |
1411 return FAIL; /* cascaded error */ | |
1412 | |
1413 op = peekchr(); | |
1414 if (re_multi_type(op) == NOT_MULTI) | |
1415 return OK; | |
1416 | |
1417 skipchr(); | |
1418 switch (op) | |
1419 { | |
1420 case Magic('*'): | |
1421 EMIT(NFA_STAR); | |
1422 break; | |
1423 | |
1424 case Magic('+'): | |
1425 /* | |
1426 * Trick: Normally, (a*)\+ would match the whole input "aaa". The | |
1427 * first and only submatch would be "aaa". But the backtracking | |
1428 * engine interprets the plus as "try matching one more time", and | |
1429 * a* matches a second time at the end of the input, the empty | |
1430 * string. | |
1431 * The submatch will the empty string. | |
1432 * | |
4673
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1433 * In order to be consistent with the old engine, we replace |
05d57d7c2d55
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|
1434 * <atom>+ with <atom><atom>* |
4444 | 1435 */ |
4679
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|
1436 restore_parse_state(&old_state); |
4444 | 1437 curchr = -1; |
1438 if (nfa_regatom() == FAIL) | |
1439 return FAIL; | |
1440 EMIT(NFA_STAR); | |
1441 EMIT(NFA_CONCAT); | |
1442 skipchr(); /* skip the \+ */ | |
1443 break; | |
1444 | |
1445 case Magic('@'): | |
4682
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|
1446 c2 = getdecchrs(); |
4444 | 1447 op = no_Magic(getchr()); |
4682
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|
1448 i = 0; |
4444 | 1449 switch(op) |
1450 { | |
1451 case '=': | |
4682
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|
1452 /* \@= */ |
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|
1453 i = NFA_PREV_ATOM_NO_WIDTH; |
4444 | 1454 break; |
4661
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|
1455 case '!': |
4682
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|
1456 /* \@! */ |
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|
1457 i = NFA_PREV_ATOM_NO_WIDTH_NEG; |
4661
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|
1458 break; |
4444 | 1459 case '<': |
4682
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|
1460 op = no_Magic(getchr()); |
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|
1461 if (op == '=') |
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|
1462 /* \@<= */ |
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diff
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|
1463 i = NFA_PREV_ATOM_JUST_BEFORE; |
2f51ee8825db
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|
1464 else if (op == '!') |
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|
1465 /* \@<! */ |
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|
1466 i = NFA_PREV_ATOM_JUST_BEFORE_NEG; |
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|
1467 break; |
4444 | 1468 case '>': |
4682
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|
1469 /* \@> Not supported yet */ |
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|
1470 /* i = NFA_PREV_ATOM_LIKE_PATTERN; */ |
4444 | 1471 return FAIL; |
1472 } | |
4682
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|
1473 if (i == 0) |
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|
1474 { |
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|
1475 syntax_error = TRUE; |
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|
1476 EMSGN(_("E869: (NFA) Unknown operator '\\@%c'"), op); |
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|
1477 return FAIL; |
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|
1478 } |
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|
1479 EMIT(i); |
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|
1480 if (i == NFA_PREV_ATOM_JUST_BEFORE |
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|
1481 || i == NFA_PREV_ATOM_JUST_BEFORE_NEG) |
2f51ee8825db
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|
1482 EMIT(c2); |
4444 | 1483 break; |
1484 | |
1485 case Magic('?'): | |
1486 case Magic('='): | |
1487 EMIT(NFA_QUEST); | |
1488 break; | |
1489 | |
1490 case Magic('{'): | |
1491 /* a{2,5} will expand to 'aaa?a?a?' | |
1492 * a{-1,3} will expand to 'aa??a??', where ?? is the nongreedy | |
1493 * version of '?' | |
1494 * \v(ab){2,3} will expand to '(ab)(ab)(ab)?', where all the | |
1495 * parenthesis have the same id | |
1496 */ | |
1497 | |
1498 greedy = TRUE; | |
1499 c2 = peekchr(); | |
1500 if (c2 == '-' || c2 == Magic('-')) | |
1501 { | |
1502 skipchr(); | |
1503 greedy = FALSE; | |
1504 } | |
1505 if (!read_limits(&minval, &maxval)) | |
1506 { | |
1507 syntax_error = TRUE; | |
1508 EMSG_RET_FAIL(_("E870: (NFA regexp) Error reading repetition limits")); | |
1509 } | |
1510 /* <atom>{0,inf}, <atom>{0,} and <atom>{} are equivalent to | |
1511 * <atom>* */ | |
4675
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|
1512 if (minval == 0 && maxval == MAX_LIMIT) |
4444 | 1513 { |
4675
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|
1514 if (greedy) |
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|
1515 /* \{}, \{0,} */ |
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|
1516 EMIT(NFA_STAR); |
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|
1517 else |
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|
1518 /* \{-}, \{-0,} */ |
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|
1519 EMIT(NFA_STAR_NONGREEDY); |
4444 | 1520 break; |
1521 } | |
1522 | |
1523 /* Special case: x{0} or x{-0} */ | |
1524 if (maxval == 0) | |
1525 { | |
1526 /* Ignore result of previous call to nfa_regatom() */ | |
4651
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|
1527 post_ptr = post_start + my_post_start; |
4444 | 1528 /* NFA_SKIP_CHAR has 0-length and works everywhere */ |
1529 EMIT(NFA_SKIP_CHAR); | |
1530 return OK; | |
1531 } | |
1532 | |
1533 /* Ignore previous call to nfa_regatom() */ | |
4651
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|
1534 post_ptr = post_start + my_post_start; |
4679
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|
1535 /* Save parse state after the repeated atom and the \{} */ |
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|
1536 save_parse_state(&new_state); |
4444 | 1537 |
1538 quest = (greedy == TRUE? NFA_QUEST : NFA_QUEST_NONGREEDY); | |
1539 for (i = 0; i < maxval; i++) | |
1540 { | |
1541 /* Goto beginning of the repeated atom */ | |
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|
1542 restore_parse_state(&old_state); |
4651
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|
1543 old_post_pos = (int)(post_ptr - post_start); |
4444 | 1544 if (nfa_regatom() == FAIL) |
1545 return FAIL; | |
1546 /* after "minval" times, atoms are optional */ | |
1547 if (i + 1 > minval) | |
4673
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|
1548 { |
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|
1549 if (maxval == MAX_LIMIT) |
4675
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|
1550 { |
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|
1551 if (greedy) |
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|
1552 EMIT(NFA_STAR); |
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1553 else |
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updated for version 7.3.1085
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|
1554 EMIT(NFA_STAR_NONGREEDY); |
811a4c9b51d8
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4673
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|
1555 } |
4673
05d57d7c2d55
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|
1556 else |
05d57d7c2d55
updated for version 7.3.1084
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|
1557 EMIT(quest); |
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|
1558 } |
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|
1559 if (old_post_pos != my_post_start) |
4444 | 1560 EMIT(NFA_CONCAT); |
4673
05d57d7c2d55
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|
1561 if (i + 1 > minval && maxval == MAX_LIMIT) |
05d57d7c2d55
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|
1562 break; |
4444 | 1563 } |
1564 | |
1565 /* Go to just after the repeated atom and the \{} */ | |
4679
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|
1566 restore_parse_state(&new_state); |
4444 | 1567 curchr = -1; |
1568 | |
1569 break; | |
1570 | |
1571 | |
1572 default: | |
1573 break; | |
1574 } /* end switch */ | |
1575 | |
1576 if (re_multi_type(peekchr()) != NOT_MULTI) | |
1577 { | |
1578 /* Can't have a multi follow a multi. */ | |
1579 syntax_error = TRUE; | |
1580 EMSG_RET_FAIL(_("E871: (NFA regexp) Can't have a multi follow a multi !")); | |
1581 } | |
1582 | |
1583 return OK; | |
1584 } | |
1585 | |
1586 /* | |
1587 * Parse one or more pieces, concatenated. It matches a match for the | |
1588 * first piece, followed by a match for the second piece, etc. Example: | |
1589 * "f[0-9]b", first matches "f", then a digit and then "b". | |
1590 * | |
1591 * concat ::= piece | |
1592 * or piece piece | |
1593 * or piece piece piece | |
1594 * etc. | |
1595 */ | |
1596 static int | |
1597 nfa_regconcat() | |
1598 { | |
1599 int cont = TRUE; | |
1600 int first = TRUE; | |
1601 | |
1602 while (cont) | |
1603 { | |
1604 switch (peekchr()) | |
1605 { | |
1606 case NUL: | |
1607 case Magic('|'): | |
1608 case Magic('&'): | |
1609 case Magic(')'): | |
1610 cont = FALSE; | |
1611 break; | |
1612 | |
1613 case Magic('Z'): | |
1614 #ifdef FEAT_MBYTE | |
1615 regflags |= RF_ICOMBINE; | |
1616 #endif | |
1617 skipchr_keepstart(); | |
1618 break; | |
1619 case Magic('c'): | |
1620 regflags |= RF_ICASE; | |
1621 skipchr_keepstart(); | |
1622 break; | |
1623 case Magic('C'): | |
1624 regflags |= RF_NOICASE; | |
1625 skipchr_keepstart(); | |
1626 break; | |
1627 case Magic('v'): | |
1628 reg_magic = MAGIC_ALL; | |
1629 skipchr_keepstart(); | |
1630 curchr = -1; | |
1631 break; | |
1632 case Magic('m'): | |
1633 reg_magic = MAGIC_ON; | |
1634 skipchr_keepstart(); | |
1635 curchr = -1; | |
1636 break; | |
1637 case Magic('M'): | |
1638 reg_magic = MAGIC_OFF; | |
1639 skipchr_keepstart(); | |
1640 curchr = -1; | |
1641 break; | |
1642 case Magic('V'): | |
1643 reg_magic = MAGIC_NONE; | |
1644 skipchr_keepstart(); | |
1645 curchr = -1; | |
1646 break; | |
1647 | |
1648 default: | |
1649 if (nfa_regpiece() == FAIL) | |
1650 return FAIL; | |
1651 if (first == FALSE) | |
1652 EMIT(NFA_CONCAT); | |
1653 else | |
1654 first = FALSE; | |
1655 break; | |
1656 } | |
1657 } | |
1658 | |
1659 return OK; | |
1660 } | |
1661 | |
1662 /* | |
1663 * Parse a branch, one or more concats, separated by "\&". It matches the | |
1664 * last concat, but only if all the preceding concats also match at the same | |
1665 * position. Examples: | |
1666 * "foobeep\&..." matches "foo" in "foobeep". | |
1667 * ".*Peter\&.*Bob" matches in a line containing both "Peter" and "Bob" | |
1668 * | |
1669 * branch ::= concat | |
1670 * or concat \& concat | |
1671 * or concat \& concat \& concat | |
1672 * etc. | |
1673 */ | |
1674 static int | |
1675 nfa_regbranch() | |
1676 { | |
1677 int ch; | |
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|
1678 int old_post_pos; |
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|
1679 |
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|
1680 old_post_pos = (int)(post_ptr - post_start); |
4444 | 1681 |
1682 /* First branch, possibly the only one */ | |
1683 if (nfa_regconcat() == FAIL) | |
1684 return FAIL; | |
1685 | |
1686 ch = peekchr(); | |
1687 /* Try next concats */ | |
1688 while (ch == Magic('&')) | |
1689 { | |
1690 skipchr(); | |
1691 EMIT(NFA_NOPEN); | |
1692 EMIT(NFA_PREV_ATOM_NO_WIDTH); | |
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|
1693 old_post_pos = (int)(post_ptr - post_start); |
4444 | 1694 if (nfa_regconcat() == FAIL) |
1695 return FAIL; | |
1696 /* if concat is empty, skip a input char. But do emit a node */ | |
4651
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|
1697 if (old_post_pos == (int)(post_ptr - post_start)) |
4444 | 1698 EMIT(NFA_SKIP_CHAR); |
1699 EMIT(NFA_CONCAT); | |
1700 ch = peekchr(); | |
1701 } | |
1702 | |
1703 /* Even if a branch is empty, emit one node for it */ | |
4651
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|
1704 if (old_post_pos == (int)(post_ptr - post_start)) |
4444 | 1705 EMIT(NFA_SKIP_CHAR); |
1706 | |
1707 return OK; | |
1708 } | |
1709 | |
1710 /* | |
1711 * Parse a pattern, one or more branches, separated by "\|". It matches | |
1712 * anything that matches one of the branches. Example: "foo\|beep" matches | |
1713 * "foo" and matches "beep". If more than one branch matches, the first one | |
1714 * is used. | |
1715 * | |
1716 * pattern ::= branch | |
1717 * or branch \| branch | |
1718 * or branch \| branch \| branch | |
1719 * etc. | |
1720 */ | |
1721 static int | |
1722 nfa_reg(paren) | |
1723 int paren; /* REG_NOPAREN, REG_PAREN, REG_NPAREN or REG_ZPAREN */ | |
1724 { | |
1725 int parno = 0; | |
1726 | |
1727 if (paren == REG_PAREN) | |
1728 { | |
1729 if (regnpar >= NSUBEXP) /* Too many `(' */ | |
1730 { | |
1731 syntax_error = TRUE; | |
1732 EMSG_RET_FAIL(_("E872: (NFA regexp) Too many '('")); | |
1733 } | |
1734 parno = regnpar++; | |
1735 } | |
4686
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1736 #ifdef FEAT_SYN_HL |
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|
1737 else if (paren == REG_ZPAREN) |
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|
1738 { |
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|
1739 /* Make a ZOPEN node. */ |
8db697ae406a
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|
1740 if (regnzpar >= NSUBEXP) |
8db697ae406a
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|
1741 { |
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|
1742 syntax_error = TRUE; |
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|
1743 EMSG_RET_FAIL(_("E879: (NFA regexp) Too many \\z(")); |
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|
1744 } |
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1745 parno = regnzpar++; |
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|
1746 } |
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|
1747 #endif |
4444 | 1748 |
1749 if (nfa_regbranch() == FAIL) | |
1750 return FAIL; /* cascaded error */ | |
1751 | |
1752 while (peekchr() == Magic('|')) | |
1753 { | |
1754 skipchr(); | |
1755 if (nfa_regbranch() == FAIL) | |
1756 return FAIL; /* cascaded error */ | |
1757 EMIT(NFA_OR); | |
1758 } | |
1759 | |
1760 /* Check for proper termination. */ | |
1761 if (paren != REG_NOPAREN && getchr() != Magic(')')) | |
1762 { | |
1763 syntax_error = TRUE; | |
1764 if (paren == REG_NPAREN) | |
1765 EMSG2_RET_FAIL(_(e_unmatchedpp), reg_magic == MAGIC_ALL); | |
1766 else | |
1767 EMSG2_RET_FAIL(_(e_unmatchedp), reg_magic == MAGIC_ALL); | |
1768 } | |
1769 else if (paren == REG_NOPAREN && peekchr() != NUL) | |
1770 { | |
1771 syntax_error = TRUE; | |
1772 if (peekchr() == Magic(')')) | |
1773 EMSG2_RET_FAIL(_(e_unmatchedpar), reg_magic == MAGIC_ALL); | |
1774 else | |
1775 EMSG_RET_FAIL(_("E873: (NFA regexp) proper termination error")); | |
1776 } | |
1777 /* | |
1778 * Here we set the flag allowing back references to this set of | |
1779 * parentheses. | |
1780 */ | |
1781 if (paren == REG_PAREN) | |
1782 { | |
1783 had_endbrace[parno] = TRUE; /* have seen the close paren */ | |
1784 EMIT(NFA_MOPEN + parno); | |
1785 } | |
4686
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1786 #ifdef FEAT_SYN_HL |
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1787 else if (paren == REG_ZPAREN) |
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1788 EMIT(NFA_ZOPEN + parno); |
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|
1789 #endif |
4444 | 1790 |
1791 return OK; | |
1792 } | |
1793 | |
1794 #ifdef DEBUG | |
1795 static char_u code[50]; | |
1796 | |
1797 static void | |
1798 nfa_set_code(c) | |
1799 int c; | |
1800 { | |
1801 int addnl = FALSE; | |
1802 | |
1803 if (c >= NFA_FIRST_NL && c <= NFA_LAST_NL) | |
1804 { | |
1805 addnl = TRUE; | |
1806 c -= ADD_NL; | |
1807 } | |
1808 | |
1809 STRCPY(code, ""); | |
1810 switch (c) | |
1811 { | |
1812 case NFA_MATCH: STRCPY(code, "NFA_MATCH "); break; | |
1813 case NFA_SPLIT: STRCPY(code, "NFA_SPLIT "); break; | |
1814 case NFA_CONCAT: STRCPY(code, "NFA_CONCAT "); break; | |
1815 case NFA_NEWL: STRCPY(code, "NFA_NEWL "); break; | |
1816 case NFA_ZSTART: STRCPY(code, "NFA_ZSTART"); break; | |
1817 case NFA_ZEND: STRCPY(code, "NFA_ZEND"); break; | |
1818 | |
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1819 case NFA_BACKREF1: STRCPY(code, "NFA_BACKREF1"); break; |
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1820 case NFA_BACKREF2: STRCPY(code, "NFA_BACKREF2"); break; |
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1821 case NFA_BACKREF3: STRCPY(code, "NFA_BACKREF3"); break; |
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1822 case NFA_BACKREF4: STRCPY(code, "NFA_BACKREF4"); break; |
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1823 case NFA_BACKREF5: STRCPY(code, "NFA_BACKREF5"); break; |
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1824 case NFA_BACKREF6: STRCPY(code, "NFA_BACKREF6"); break; |
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1825 case NFA_BACKREF7: STRCPY(code, "NFA_BACKREF7"); break; |
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1826 case NFA_BACKREF8: STRCPY(code, "NFA_BACKREF8"); break; |
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1827 case NFA_BACKREF9: STRCPY(code, "NFA_BACKREF9"); break; |
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1828 #ifdef FEAT_SYN_HL |
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1829 case NFA_ZREF1: STRCPY(code, "NFA_ZREF1"); break; |
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1830 case NFA_ZREF2: STRCPY(code, "NFA_ZREF2"); break; |
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1831 case NFA_ZREF3: STRCPY(code, "NFA_ZREF3"); break; |
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1832 case NFA_ZREF4: STRCPY(code, "NFA_ZREF4"); break; |
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1833 case NFA_ZREF5: STRCPY(code, "NFA_ZREF5"); break; |
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1834 case NFA_ZREF6: STRCPY(code, "NFA_ZREF6"); break; |
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1835 case NFA_ZREF7: STRCPY(code, "NFA_ZREF7"); break; |
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1836 case NFA_ZREF8: STRCPY(code, "NFA_ZREF8"); break; |
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1837 case NFA_ZREF9: STRCPY(code, "NFA_ZREF9"); break; |
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1838 #endif |
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1839 case NFA_SKIP: STRCPY(code, "NFA_SKIP"); break; |
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1840 |
4444 | 1841 case NFA_PREV_ATOM_NO_WIDTH: |
1842 STRCPY(code, "NFA_PREV_ATOM_NO_WIDTH"); break; | |
4583
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1843 case NFA_PREV_ATOM_NO_WIDTH_NEG: |
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1844 STRCPY(code, "NFA_PREV_ATOM_NO_WIDTH_NEG"); break; |
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1845 case NFA_PREV_ATOM_JUST_BEFORE: |
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1846 STRCPY(code, "NFA_PREV_ATOM_JUST_BEFORE"); break; |
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1847 case NFA_PREV_ATOM_JUST_BEFORE_NEG: |
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1848 STRCPY(code, "NFA_PREV_ATOM_JUST_BEFORE_NEG"); break; |
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1849 case NFA_NOPEN: STRCPY(code, "NFA_NOPEN"); break; |
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1850 case NFA_NCLOSE: STRCPY(code, "NFA_NCLOSE"); break; |
4444 | 1851 case NFA_START_INVISIBLE: STRCPY(code, "NFA_START_INVISIBLE"); break; |
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1852 case NFA_START_INVISIBLE_BEFORE: |
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1853 STRCPY(code, "NFA_START_INVISIBLE_BEFORE"); break; |
4444 | 1854 case NFA_END_INVISIBLE: STRCPY(code, "NFA_END_INVISIBLE"); break; |
1855 | |
1856 case NFA_COMPOSING: STRCPY(code, "NFA_COMPOSING"); break; | |
1857 case NFA_END_COMPOSING: STRCPY(code, "NFA_END_COMPOSING"); break; | |
1858 | |
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1859 case NFA_MOPEN: |
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1860 case NFA_MOPEN1: |
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1861 case NFA_MOPEN2: |
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|
1862 case NFA_MOPEN3: |
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1863 case NFA_MOPEN4: |
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1864 case NFA_MOPEN5: |
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1865 case NFA_MOPEN6: |
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1866 case NFA_MOPEN7: |
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1867 case NFA_MOPEN8: |
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1868 case NFA_MOPEN9: |
4444 | 1869 STRCPY(code, "NFA_MOPEN(x)"); |
1870 code[10] = c - NFA_MOPEN + '0'; | |
1871 break; | |
4686
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1872 case NFA_MCLOSE: |
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1873 case NFA_MCLOSE1: |
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1874 case NFA_MCLOSE2: |
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1875 case NFA_MCLOSE3: |
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1876 case NFA_MCLOSE4: |
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1877 case NFA_MCLOSE5: |
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1878 case NFA_MCLOSE6: |
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1879 case NFA_MCLOSE7: |
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1880 case NFA_MCLOSE8: |
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1881 case NFA_MCLOSE9: |
4444 | 1882 STRCPY(code, "NFA_MCLOSE(x)"); |
1883 code[11] = c - NFA_MCLOSE + '0'; | |
1884 break; | |
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1885 #ifdef FEAT_SYN_HL |
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1886 case NFA_ZOPEN: |
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1887 case NFA_ZOPEN1: |
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1888 case NFA_ZOPEN2: |
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1889 case NFA_ZOPEN3: |
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1890 case NFA_ZOPEN4: |
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1891 case NFA_ZOPEN5: |
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1892 case NFA_ZOPEN6: |
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1893 case NFA_ZOPEN7: |
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1894 case NFA_ZOPEN8: |
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1895 case NFA_ZOPEN9: |
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1896 STRCPY(code, "NFA_ZOPEN(x)"); |
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1897 code[10] = c - NFA_ZOPEN + '0'; |
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1898 break; |
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1899 case NFA_ZCLOSE: |
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1900 case NFA_ZCLOSE1: |
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1901 case NFA_ZCLOSE2: |
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1902 case NFA_ZCLOSE3: |
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1903 case NFA_ZCLOSE4: |
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1904 case NFA_ZCLOSE5: |
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1905 case NFA_ZCLOSE6: |
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1906 case NFA_ZCLOSE7: |
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1907 case NFA_ZCLOSE8: |
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1908 case NFA_ZCLOSE9: |
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1909 STRCPY(code, "NFA_ZCLOSE(x)"); |
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1910 code[11] = c - NFA_ZCLOSE + '0'; |
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1911 break; |
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1912 #endif |
4444 | 1913 case NFA_EOL: STRCPY(code, "NFA_EOL "); break; |
1914 case NFA_BOL: STRCPY(code, "NFA_BOL "); break; | |
1915 case NFA_EOW: STRCPY(code, "NFA_EOW "); break; | |
1916 case NFA_BOW: STRCPY(code, "NFA_BOW "); break; | |
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1917 case NFA_EOF: STRCPY(code, "NFA_EOF "); break; |
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1918 case NFA_BOF: STRCPY(code, "NFA_BOF "); break; |
4444 | 1919 case NFA_STAR: STRCPY(code, "NFA_STAR "); break; |
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1920 case NFA_STAR_NONGREEDY: STRCPY(code, "NFA_STAR_NONGREEDY "); break; |
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1921 case NFA_QUEST: STRCPY(code, "NFA_QUEST"); break; |
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1922 case NFA_QUEST_NONGREEDY: STRCPY(code, "NFA_QUEST_NON_GREEDY"); break; |
4444 | 1923 case NFA_NOT: STRCPY(code, "NFA_NOT "); break; |
1924 case NFA_SKIP_CHAR: STRCPY(code, "NFA_SKIP_CHAR"); break; | |
1925 case NFA_OR: STRCPY(code, "NFA_OR"); break; | |
1926 case NFA_END_NEG_RANGE: STRCPY(code, "NFA_END_NEG_RANGE"); break; | |
1927 case NFA_CLASS_ALNUM: STRCPY(code, "NFA_CLASS_ALNUM"); break; | |
1928 case NFA_CLASS_ALPHA: STRCPY(code, "NFA_CLASS_ALPHA"); break; | |
1929 case NFA_CLASS_BLANK: STRCPY(code, "NFA_CLASS_BLANK"); break; | |
1930 case NFA_CLASS_CNTRL: STRCPY(code, "NFA_CLASS_CNTRL"); break; | |
1931 case NFA_CLASS_DIGIT: STRCPY(code, "NFA_CLASS_DIGIT"); break; | |
1932 case NFA_CLASS_GRAPH: STRCPY(code, "NFA_CLASS_GRAPH"); break; | |
1933 case NFA_CLASS_LOWER: STRCPY(code, "NFA_CLASS_LOWER"); break; | |
1934 case NFA_CLASS_PRINT: STRCPY(code, "NFA_CLASS_PRINT"); break; | |
1935 case NFA_CLASS_PUNCT: STRCPY(code, "NFA_CLASS_PUNCT"); break; | |
1936 case NFA_CLASS_SPACE: STRCPY(code, "NFA_CLASS_SPACE"); break; | |
1937 case NFA_CLASS_UPPER: STRCPY(code, "NFA_CLASS_UPPER"); break; | |
1938 case NFA_CLASS_XDIGIT: STRCPY(code, "NFA_CLASS_XDIGIT"); break; | |
1939 case NFA_CLASS_TAB: STRCPY(code, "NFA_CLASS_TAB"); break; | |
1940 case NFA_CLASS_RETURN: STRCPY(code, "NFA_CLASS_RETURN"); break; | |
1941 case NFA_CLASS_BACKSPACE: STRCPY(code, "NFA_CLASS_BACKSPACE"); break; | |
1942 case NFA_CLASS_ESCAPE: STRCPY(code, "NFA_CLASS_ESCAPE"); break; | |
1943 | |
1944 case NFA_ANY: STRCPY(code, "NFA_ANY"); break; | |
1945 case NFA_IDENT: STRCPY(code, "NFA_IDENT"); break; | |
1946 case NFA_SIDENT:STRCPY(code, "NFA_SIDENT"); break; | |
1947 case NFA_KWORD: STRCPY(code, "NFA_KWORD"); break; | |
1948 case NFA_SKWORD:STRCPY(code, "NFA_SKWORD"); break; | |
1949 case NFA_FNAME: STRCPY(code, "NFA_FNAME"); break; | |
1950 case NFA_SFNAME:STRCPY(code, "NFA_SFNAME"); break; | |
1951 case NFA_PRINT: STRCPY(code, "NFA_PRINT"); break; | |
1952 case NFA_SPRINT:STRCPY(code, "NFA_SPRINT"); break; | |
1953 case NFA_WHITE: STRCPY(code, "NFA_WHITE"); break; | |
1954 case NFA_NWHITE:STRCPY(code, "NFA_NWHITE"); break; | |
1955 case NFA_DIGIT: STRCPY(code, "NFA_DIGIT"); break; | |
1956 case NFA_NDIGIT:STRCPY(code, "NFA_NDIGIT"); break; | |
1957 case NFA_HEX: STRCPY(code, "NFA_HEX"); break; | |
1958 case NFA_NHEX: STRCPY(code, "NFA_NHEX"); break; | |
1959 case NFA_OCTAL: STRCPY(code, "NFA_OCTAL"); break; | |
1960 case NFA_NOCTAL:STRCPY(code, "NFA_NOCTAL"); break; | |
1961 case NFA_WORD: STRCPY(code, "NFA_WORD"); break; | |
1962 case NFA_NWORD: STRCPY(code, "NFA_NWORD"); break; | |
1963 case NFA_HEAD: STRCPY(code, "NFA_HEAD"); break; | |
1964 case NFA_NHEAD: STRCPY(code, "NFA_NHEAD"); break; | |
1965 case NFA_ALPHA: STRCPY(code, "NFA_ALPHA"); break; | |
1966 case NFA_NALPHA:STRCPY(code, "NFA_NALPHA"); break; | |
1967 case NFA_LOWER: STRCPY(code, "NFA_LOWER"); break; | |
1968 case NFA_NLOWER:STRCPY(code, "NFA_NLOWER"); break; | |
1969 case NFA_UPPER: STRCPY(code, "NFA_UPPER"); break; | |
1970 case NFA_NUPPER:STRCPY(code, "NFA_NUPPER"); break; | |
1971 | |
1972 default: | |
1973 STRCPY(code, "CHAR(x)"); | |
1974 code[5] = c; | |
1975 } | |
1976 | |
1977 if (addnl == TRUE) | |
1978 STRCAT(code, " + NEWLINE "); | |
1979 | |
1980 } | |
1981 | |
1982 #ifdef ENABLE_LOG | |
1983 static FILE *log_fd; | |
1984 | |
1985 /* | |
1986 * Print the postfix notation of the current regexp. | |
1987 */ | |
1988 static void | |
1989 nfa_postfix_dump(expr, retval) | |
1990 char_u *expr; | |
1991 int retval; | |
1992 { | |
1993 int *p; | |
1994 FILE *f; | |
1995 | |
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1996 f = fopen(NFA_REGEXP_DUMP_LOG, "a"); |
4444 | 1997 if (f != NULL) |
1998 { | |
1999 fprintf(f, "\n-------------------------\n"); | |
2000 if (retval == FAIL) | |
2001 fprintf(f, ">>> NFA engine failed ... \n"); | |
2002 else if (retval == OK) | |
2003 fprintf(f, ">>> NFA engine succeeded !\n"); | |
2004 fprintf(f, "Regexp: \"%s\"\nPostfix notation (char): \"", expr); | |
4464 | 2005 for (p = post_start; *p && p < post_end; p++) |
4444 | 2006 { |
2007 nfa_set_code(*p); | |
2008 fprintf(f, "%s, ", code); | |
2009 } | |
2010 fprintf(f, "\"\nPostfix notation (int): "); | |
4464 | 2011 for (p = post_start; *p && p < post_end; p++) |
4444 | 2012 fprintf(f, "%d ", *p); |
2013 fprintf(f, "\n\n"); | |
2014 fclose(f); | |
2015 } | |
2016 } | |
2017 | |
2018 /* | |
2019 * Print the NFA starting with a root node "state". | |
2020 */ | |
2021 static void | |
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2022 nfa_print_state(debugf, state) |
4444 | 2023 FILE *debugf; |
2024 nfa_state_T *state; | |
2025 { | |
4533
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2026 garray_T indent; |
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2027 |
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2028 ga_init2(&indent, 1, 64); |
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2029 ga_append(&indent, '\0'); |
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2030 nfa_print_state2(debugf, state, &indent); |
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2031 ga_clear(&indent); |
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2032 } |
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2033 |
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2034 static void |
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2035 nfa_print_state2(debugf, state, indent) |
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2036 FILE *debugf; |
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2037 nfa_state_T *state; |
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2038 garray_T *indent; |
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2039 { |
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2040 char_u *p; |
4444 | 2041 |
2042 if (state == NULL) | |
2043 return; | |
2044 | |
2045 fprintf(debugf, "(%2d)", abs(state->id)); | |
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2046 |
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2047 /* Output indent */ |
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2048 p = (char_u *)indent->ga_data; |
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2049 if (indent->ga_len >= 3) |
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2050 { |
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2051 int last = indent->ga_len - 3; |
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2052 char_u save[2]; |
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2053 |
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2054 STRNCPY(save, &p[last], 2); |
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2055 STRNCPY(&p[last], "+-", 2); |
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2056 fprintf(debugf, " %s", p); |
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2057 STRNCPY(&p[last], save, 2); |
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2058 } |
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2059 else |
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2060 fprintf(debugf, " %s", p); |
4444 | 2061 |
2062 nfa_set_code(state->c); | |
4533
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2063 fprintf(debugf, "%s%s (%d) (id=%d)\n", |
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2064 state->negated ? "NOT " : "", code, state->c, abs(state->id)); |
4444 | 2065 if (state->id < 0) |
2066 return; | |
2067 | |
2068 state->id = abs(state->id) * -1; | |
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2069 |
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2070 /* grow indent for state->out */ |
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2071 indent->ga_len -= 1; |
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2072 if (state->out1) |
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2073 ga_concat(indent, (char_u *)"| "); |
4533
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2074 else |
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2075 ga_concat(indent, (char_u *)" "); |
4533
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2076 ga_append(indent, '\0'); |
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2077 |
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2078 nfa_print_state2(debugf, state->out, indent); |
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2079 |
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2080 /* replace last part of indent for state->out1 */ |
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2081 indent->ga_len -= 3; |
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2082 ga_concat(indent, (char_u *)" "); |
4533
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2083 ga_append(indent, '\0'); |
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2084 |
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2085 nfa_print_state2(debugf, state->out1, indent); |
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2086 |
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2087 /* shrink indent */ |
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2088 indent->ga_len -= 3; |
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2089 ga_append(indent, '\0'); |
4444 | 2090 } |
2091 | |
2092 /* | |
2093 * Print the NFA state machine. | |
2094 */ | |
2095 static void | |
2096 nfa_dump(prog) | |
2097 nfa_regprog_T *prog; | |
2098 { | |
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2099 FILE *debugf = fopen(NFA_REGEXP_DUMP_LOG, "a"); |
4444 | 2100 |
2101 if (debugf != NULL) | |
2102 { | |
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2103 nfa_print_state(debugf, prog->start); |
4444 | 2104 fclose(debugf); |
2105 } | |
2106 } | |
2107 #endif /* ENABLE_LOG */ | |
2108 #endif /* DEBUG */ | |
2109 | |
2110 /* | |
2111 * Parse r.e. @expr and convert it into postfix form. | |
2112 * Return the postfix string on success, NULL otherwise. | |
2113 */ | |
2114 static int * | |
2115 re2post() | |
2116 { | |
2117 if (nfa_reg(REG_NOPAREN) == FAIL) | |
2118 return NULL; | |
2119 EMIT(NFA_MOPEN); | |
2120 return post_start; | |
2121 } | |
2122 | |
2123 /* NB. Some of the code below is inspired by Russ's. */ | |
2124 | |
2125 /* | |
2126 * Represents an NFA state plus zero or one or two arrows exiting. | |
2127 * if c == MATCH, no arrows out; matching state. | |
2128 * If c == SPLIT, unlabeled arrows to out and out1 (if != NULL). | |
2129 * If c < 256, labeled arrow with character c to out. | |
2130 */ | |
2131 | |
2132 static nfa_state_T *state_ptr; /* points to nfa_prog->state */ | |
2133 | |
2134 /* | |
2135 * Allocate and initialize nfa_state_T. | |
2136 */ | |
2137 static nfa_state_T * | |
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2138 alloc_state(c, out, out1) |
4444 | 2139 int c; |
2140 nfa_state_T *out; | |
2141 nfa_state_T *out1; | |
2142 { | |
2143 nfa_state_T *s; | |
2144 | |
2145 if (istate >= nstate) | |
2146 return NULL; | |
2147 | |
2148 s = &state_ptr[istate++]; | |
2149 | |
2150 s->c = c; | |
2151 s->out = out; | |
2152 s->out1 = out1; | |
2153 | |
2154 s->id = istate; | |
2155 s->lastlist = 0; | |
2156 s->negated = FALSE; | |
2157 | |
2158 return s; | |
2159 } | |
2160 | |
2161 /* | |
2162 * A partially built NFA without the matching state filled in. | |
2163 * Frag_T.start points at the start state. | |
2164 * Frag_T.out is a list of places that need to be set to the | |
2165 * next state for this fragment. | |
2166 */ | |
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2167 |
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2168 /* Since the out pointers in the list are always |
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2169 * uninitialized, we use the pointers themselves |
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2170 * as storage for the Ptrlists. */ |
4444 | 2171 typedef union Ptrlist Ptrlist; |
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2172 union Ptrlist |
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2173 { |
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2174 Ptrlist *next; |
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2175 nfa_state_T *s; |
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2176 }; |
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2177 |
4444 | 2178 struct Frag |
2179 { | |
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2180 nfa_state_T *start; |
4444 | 2181 Ptrlist *out; |
2182 }; | |
2183 typedef struct Frag Frag_T; | |
2184 | |
2185 static Frag_T frag __ARGS((nfa_state_T *start, Ptrlist *out)); | |
2186 static Ptrlist *list1 __ARGS((nfa_state_T **outp)); | |
2187 static void patch __ARGS((Ptrlist *l, nfa_state_T *s)); | |
2188 static Ptrlist *append __ARGS((Ptrlist *l1, Ptrlist *l2)); | |
2189 static void st_push __ARGS((Frag_T s, Frag_T **p, Frag_T *stack_end)); | |
2190 static Frag_T st_pop __ARGS((Frag_T **p, Frag_T *stack)); | |
2191 | |
2192 /* | |
4456 | 2193 * Initialize a Frag_T struct and return it. |
4444 | 2194 */ |
2195 static Frag_T | |
2196 frag(start, out) | |
2197 nfa_state_T *start; | |
2198 Ptrlist *out; | |
2199 { | |
4456 | 2200 Frag_T n; |
2201 | |
2202 n.start = start; | |
2203 n.out = out; | |
4444 | 2204 return n; |
2205 } | |
2206 | |
2207 /* | |
2208 * Create singleton list containing just outp. | |
2209 */ | |
2210 static Ptrlist * | |
2211 list1(outp) | |
2212 nfa_state_T **outp; | |
2213 { | |
2214 Ptrlist *l; | |
2215 | |
2216 l = (Ptrlist *)outp; | |
2217 l->next = NULL; | |
2218 return l; | |
2219 } | |
2220 | |
2221 /* | |
2222 * Patch the list of states at out to point to start. | |
2223 */ | |
2224 static void | |
2225 patch(l, s) | |
2226 Ptrlist *l; | |
2227 nfa_state_T *s; | |
2228 { | |
2229 Ptrlist *next; | |
2230 | |
2231 for (; l; l = next) | |
2232 { | |
2233 next = l->next; | |
2234 l->s = s; | |
2235 } | |
2236 } | |
2237 | |
2238 | |
2239 /* | |
2240 * Join the two lists l1 and l2, returning the combination. | |
2241 */ | |
2242 static Ptrlist * | |
2243 append(l1, l2) | |
2244 Ptrlist *l1; | |
2245 Ptrlist *l2; | |
2246 { | |
2247 Ptrlist *oldl1; | |
2248 | |
2249 oldl1 = l1; | |
2250 while (l1->next) | |
2251 l1 = l1->next; | |
2252 l1->next = l2; | |
2253 return oldl1; | |
2254 } | |
2255 | |
2256 /* | |
2257 * Stack used for transforming postfix form into NFA. | |
2258 */ | |
2259 static Frag_T empty; | |
2260 | |
2261 static void | |
2262 st_error(postfix, end, p) | |
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2263 int *postfix UNUSED; |
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2264 int *end UNUSED; |
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2265 int *p UNUSED; |
4444 | 2266 { |
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2267 #ifdef NFA_REGEXP_ERROR_LOG |
4444 | 2268 FILE *df; |
2269 int *p2; | |
2270 | |
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2271 df = fopen(NFA_REGEXP_ERROR_LOG, "a"); |
4444 | 2272 if (df) |
2273 { | |
2274 fprintf(df, "Error popping the stack!\n"); | |
2275 #ifdef DEBUG | |
2276 fprintf(df, "Current regexp is \"%s\"\n", nfa_regengine.expr); | |
2277 #endif | |
2278 fprintf(df, "Postfix form is: "); | |
2279 #ifdef DEBUG | |
2280 for (p2 = postfix; p2 < end; p2++) | |
2281 { | |
2282 nfa_set_code(*p2); | |
2283 fprintf(df, "%s, ", code); | |
2284 } | |
2285 nfa_set_code(*p); | |
2286 fprintf(df, "\nCurrent position is: "); | |
2287 for (p2 = postfix; p2 <= p; p2 ++) | |
2288 { | |
2289 nfa_set_code(*p2); | |
2290 fprintf(df, "%s, ", code); | |
2291 } | |
2292 #else | |
2293 for (p2 = postfix; p2 < end; p2++) | |
2294 { | |
2295 fprintf(df, "%d, ", *p2); | |
2296 } | |
2297 fprintf(df, "\nCurrent position is: "); | |
2298 for (p2 = postfix; p2 <= p; p2 ++) | |
2299 { | |
2300 fprintf(df, "%d, ", *p2); | |
2301 } | |
2302 #endif | |
2303 fprintf(df, "\n--------------------------\n"); | |
2304 fclose(df); | |
2305 } | |
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2306 #endif |
4444 | 2307 EMSG(_("E874: (NFA) Could not pop the stack !")); |
2308 } | |
2309 | |
2310 /* | |
2311 * Push an item onto the stack. | |
2312 */ | |
2313 static void | |
2314 st_push(s, p, stack_end) | |
2315 Frag_T s; | |
2316 Frag_T **p; | |
2317 Frag_T *stack_end; | |
2318 { | |
2319 Frag_T *stackp = *p; | |
2320 | |
2321 if (stackp >= stack_end) | |
2322 return; | |
2323 *stackp = s; | |
2324 *p = *p + 1; | |
2325 } | |
2326 | |
2327 /* | |
2328 * Pop an item from the stack. | |
2329 */ | |
2330 static Frag_T | |
2331 st_pop(p, stack) | |
2332 Frag_T **p; | |
2333 Frag_T *stack; | |
2334 { | |
2335 Frag_T *stackp; | |
2336 | |
2337 *p = *p - 1; | |
2338 stackp = *p; | |
2339 if (stackp < stack) | |
2340 return empty; | |
2341 return **p; | |
2342 } | |
2343 | |
2344 /* | |
2345 * Convert a postfix form into its equivalent NFA. | |
2346 * Return the NFA start state on success, NULL otherwise. | |
2347 */ | |
2348 static nfa_state_T * | |
2349 post2nfa(postfix, end, nfa_calc_size) | |
2350 int *postfix; | |
2351 int *end; | |
2352 int nfa_calc_size; | |
2353 { | |
2354 int *p; | |
2355 int mopen; | |
2356 int mclose; | |
2357 Frag_T *stack = NULL; | |
2358 Frag_T *stackp = NULL; | |
2359 Frag_T *stack_end = NULL; | |
2360 Frag_T e1; | |
2361 Frag_T e2; | |
2362 Frag_T e; | |
2363 nfa_state_T *s; | |
2364 nfa_state_T *s1; | |
2365 nfa_state_T *matchstate; | |
4484 | 2366 nfa_state_T *ret = NULL; |
4444 | 2367 |
2368 if (postfix == NULL) | |
2369 return NULL; | |
2370 | |
4456 | 2371 #define PUSH(s) st_push((s), &stackp, stack_end) |
4444 | 2372 #define POP() st_pop(&stackp, stack); \ |
2373 if (stackp < stack) \ | |
2374 { \ | |
2375 st_error(postfix, end, p); \ | |
2376 return NULL; \ | |
2377 } | |
2378 | |
2379 if (nfa_calc_size == FALSE) | |
2380 { | |
2381 /* Allocate space for the stack. Max states on the stack : nstate */ | |
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2382 stack = (Frag_T *)lalloc((nstate + 1) * sizeof(Frag_T), TRUE); |
4444 | 2383 stackp = stack; |
4462 | 2384 stack_end = stack + (nstate + 1); |
4444 | 2385 } |
2386 | |
2387 for (p = postfix; p < end; ++p) | |
2388 { | |
2389 switch (*p) | |
2390 { | |
2391 case NFA_CONCAT: | |
2392 /* Catenation. | |
2393 * Pay attention: this operator does not exist | |
2394 * in the r.e. itself (it is implicit, really). | |
2395 * It is added when r.e. is translated to postfix | |
2396 * form in re2post(). | |
2397 * | |
2398 * No new state added here. */ | |
2399 if (nfa_calc_size == TRUE) | |
2400 { | |
4458 | 2401 /* nstate += 0; */ |
4444 | 2402 break; |
2403 } | |
2404 e2 = POP(); | |
2405 e1 = POP(); | |
2406 patch(e1.out, e2.start); | |
2407 PUSH(frag(e1.start, e2.out)); | |
2408 break; | |
2409 | |
2410 case NFA_NOT: | |
2411 /* Negation of a character */ | |
2412 if (nfa_calc_size == TRUE) | |
2413 { | |
4458 | 2414 /* nstate += 0; */ |
4444 | 2415 break; |
2416 } | |
2417 e1 = POP(); | |
2418 e1.start->negated = TRUE; | |
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2419 #ifdef FEAT_MBYTE |
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2420 if (e1.start->c == NFA_COMPOSING) |
4444 | 2421 e1.start->out1->negated = TRUE; |
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2422 #endif |
4444 | 2423 PUSH(e1); |
2424 break; | |
2425 | |
2426 case NFA_OR: | |
2427 /* Alternation */ | |
2428 if (nfa_calc_size == TRUE) | |
2429 { | |
4458 | 2430 nstate++; |
4444 | 2431 break; |
2432 } | |
2433 e2 = POP(); | |
2434 e1 = POP(); | |
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2435 s = alloc_state(NFA_SPLIT, e1.start, e2.start); |
4444 | 2436 if (s == NULL) |
4484 | 2437 goto theend; |
4444 | 2438 PUSH(frag(s, append(e1.out, e2.out))); |
2439 break; | |
2440 | |
2441 case NFA_STAR: | |
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2442 /* Zero or more, prefer more */ |
4444 | 2443 if (nfa_calc_size == TRUE) |
2444 { | |
4458 | 2445 nstate++; |
4444 | 2446 break; |
2447 } | |
2448 e = POP(); | |
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2449 s = alloc_state(NFA_SPLIT, e.start, NULL); |
4444 | 2450 if (s == NULL) |
4484 | 2451 goto theend; |
4444 | 2452 patch(e.out, s); |
2453 PUSH(frag(s, list1(&s->out1))); | |
2454 break; | |
2455 | |
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2456 case NFA_STAR_NONGREEDY: |
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2457 /* Zero or more, prefer zero */ |
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2458 if (nfa_calc_size == TRUE) |
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2459 { |
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2460 nstate++; |
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2461 break; |
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2462 } |
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2463 e = POP(); |
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2464 s = alloc_state(NFA_SPLIT, NULL, e.start); |
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2465 if (s == NULL) |
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2466 goto theend; |
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2467 patch(e.out, s); |
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parents:
4673
diff
changeset
|
2468 PUSH(frag(s, list1(&s->out))); |
811a4c9b51d8
updated for version 7.3.1085
Bram Moolenaar <bram@vim.org>
parents:
4673
diff
changeset
|
2469 break; |
811a4c9b51d8
updated for version 7.3.1085
Bram Moolenaar <bram@vim.org>
parents:
4673
diff
changeset
|
2470 |
4444 | 2471 case NFA_QUEST: |
2472 /* one or zero atoms=> greedy match */ | |
2473 if (nfa_calc_size == TRUE) | |
2474 { | |
4458 | 2475 nstate++; |
4444 | 2476 break; |
2477 } | |
2478 e = POP(); | |
4696
ed4e689bbea1
updated for version 7.3.1095
Bram Moolenaar <bram@vim.org>
parents:
4694
diff
changeset
|
2479 s = alloc_state(NFA_SPLIT, e.start, NULL); |
4444 | 2480 if (s == NULL) |
4484 | 2481 goto theend; |
4444 | 2482 PUSH(frag(s, append(e.out, list1(&s->out1)))); |
2483 break; | |
2484 | |
2485 case NFA_QUEST_NONGREEDY: | |
2486 /* zero or one atoms => non-greedy match */ | |
2487 if (nfa_calc_size == TRUE) | |
2488 { | |
4458 | 2489 nstate++; |
4444 | 2490 break; |
2491 } | |
2492 e = POP(); | |
4696
ed4e689bbea1
updated for version 7.3.1095
Bram Moolenaar <bram@vim.org>
parents:
4694
diff
changeset
|
2493 s = alloc_state(NFA_SPLIT, NULL, e.start); |
4444 | 2494 if (s == NULL) |
4484 | 2495 goto theend; |
4444 | 2496 PUSH(frag(s, append(e.out, list1(&s->out)))); |
2497 break; | |
2498 | |
2499 case NFA_SKIP_CHAR: | |
2500 /* Symbol of 0-length, Used in a repetition | |
2501 * with max/min count of 0 */ | |
2502 if (nfa_calc_size == TRUE) | |
2503 { | |
4458 | 2504 nstate++; |
4444 | 2505 break; |
2506 } | |
4696
ed4e689bbea1
updated for version 7.3.1095
Bram Moolenaar <bram@vim.org>
parents:
4694
diff
changeset
|
2507 s = alloc_state(NFA_SKIP_CHAR, NULL, NULL); |
4444 | 2508 if (s == NULL) |
4484 | 2509 goto theend; |
4444 | 2510 PUSH(frag(s, list1(&s->out))); |
2511 break; | |
2512 | |
2513 case NFA_PREV_ATOM_NO_WIDTH: | |
4661
0dce3d812e7a
updated for version 7.3.1078
Bram Moolenaar <bram@vim.org>
parents:
4657
diff
changeset
|
2514 case NFA_PREV_ATOM_NO_WIDTH_NEG: |
4682
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
2515 case NFA_PREV_ATOM_JUST_BEFORE: |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
2516 case NFA_PREV_ATOM_JUST_BEFORE_NEG: |
4657
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
2517 /* 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
|
2518 * 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
|
2519 * The \@<= operator: match for the preceding atom. |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
2520 * The \@<! operator: no match for the preceding atom. |
4444 | 2521 * 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
|
2522 * END_INVISIBLE, similarly to MOPEN. */ |
4444 | 2523 |
2524 if (nfa_calc_size == TRUE) | |
2525 { | |
2526 nstate += 2; | |
2527 break; | |
2528 } | |
2529 e = POP(); | |
4696
ed4e689bbea1
updated for version 7.3.1095
Bram Moolenaar <bram@vim.org>
parents:
4694
diff
changeset
|
2530 s1 = alloc_state(NFA_END_INVISIBLE, NULL, NULL); |
4444 | 2531 if (s1 == NULL) |
4484 | 2532 goto theend; |
4444 | 2533 patch(e.out, s1); |
2534 | |
4696
ed4e689bbea1
updated for version 7.3.1095
Bram Moolenaar <bram@vim.org>
parents:
4694
diff
changeset
|
2535 s = alloc_state(NFA_START_INVISIBLE, e.start, s1); |
4444 | 2536 if (s == NULL) |
4484 | 2537 goto theend; |
4682
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
2538 if (*p == NFA_PREV_ATOM_NO_WIDTH_NEG |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
2539 || *p == NFA_PREV_ATOM_JUST_BEFORE_NEG) |
4661
0dce3d812e7a
updated for version 7.3.1078
Bram Moolenaar <bram@vim.org>
parents:
4657
diff
changeset
|
2540 { |
0dce3d812e7a
updated for version 7.3.1078
Bram Moolenaar <bram@vim.org>
parents:
4657
diff
changeset
|
2541 s->negated = TRUE; |
0dce3d812e7a
updated for version 7.3.1078
Bram Moolenaar <bram@vim.org>
parents:
4657
diff
changeset
|
2542 s1->negated = TRUE; |
0dce3d812e7a
updated for version 7.3.1078
Bram Moolenaar <bram@vim.org>
parents:
4657
diff
changeset
|
2543 } |
4682
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
2544 if (*p == NFA_PREV_ATOM_JUST_BEFORE |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
2545 || *p == NFA_PREV_ATOM_JUST_BEFORE_NEG) |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
2546 { |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
2547 s->val = *++p; /* get the count */ |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
2548 ++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
|
2549 } |
4661
0dce3d812e7a
updated for version 7.3.1078
Bram Moolenaar <bram@vim.org>
parents:
4657
diff
changeset
|
2550 |
4444 | 2551 PUSH(frag(s, list1(&s1->out))); |
2552 break; | |
2553 | |
4531
1be43c095aff
updated for version 7.3.1013
Bram Moolenaar <bram@vim.org>
parents:
4529
diff
changeset
|
2554 #ifdef FEAT_MBYTE |
4527
55bcaa1d2749
updated for version 7.3.1011
Bram Moolenaar <bram@vim.org>
parents:
4525
diff
changeset
|
2555 case NFA_COMPOSING: /* char with composing char */ |
55bcaa1d2749
updated for version 7.3.1011
Bram Moolenaar <bram@vim.org>
parents:
4525
diff
changeset
|
2556 #if 0 |
55bcaa1d2749
updated for version 7.3.1011
Bram Moolenaar <bram@vim.org>
parents:
4525
diff
changeset
|
2557 /* TODO */ |
55bcaa1d2749
updated for version 7.3.1011
Bram Moolenaar <bram@vim.org>
parents:
4525
diff
changeset
|
2558 if (regflags & RF_ICOMBINE) |
55bcaa1d2749
updated for version 7.3.1011
Bram Moolenaar <bram@vim.org>
parents:
4525
diff
changeset
|
2559 { |
4529
432a6b8c7d93
updated for version 7.3.1012
Bram Moolenaar <bram@vim.org>
parents:
4527
diff
changeset
|
2560 /* use the base character only */ |
4527
55bcaa1d2749
updated for version 7.3.1011
Bram Moolenaar <bram@vim.org>
parents:
4525
diff
changeset
|
2561 } |
55bcaa1d2749
updated for version 7.3.1011
Bram Moolenaar <bram@vim.org>
parents:
4525
diff
changeset
|
2562 #endif |
55bcaa1d2749
updated for version 7.3.1011
Bram Moolenaar <bram@vim.org>
parents:
4525
diff
changeset
|
2563 /* FALLTHROUGH */ |
4531
1be43c095aff
updated for version 7.3.1013
Bram Moolenaar <bram@vim.org>
parents:
4529
diff
changeset
|
2564 #endif |
4527
55bcaa1d2749
updated for version 7.3.1011
Bram Moolenaar <bram@vim.org>
parents:
4525
diff
changeset
|
2565 |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2566 case NFA_MOPEN: /* \( \) Submatch */ |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2567 case NFA_MOPEN1: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2568 case NFA_MOPEN2: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2569 case NFA_MOPEN3: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2570 case NFA_MOPEN4: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2571 case NFA_MOPEN5: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2572 case NFA_MOPEN6: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2573 case NFA_MOPEN7: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2574 case NFA_MOPEN8: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2575 case NFA_MOPEN9: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2576 #ifdef FEAT_SYN_HL |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2577 case NFA_ZOPEN: /* \z( \) Submatch */ |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2578 case NFA_ZOPEN1: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2579 case NFA_ZOPEN2: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2580 case NFA_ZOPEN3: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2581 case NFA_ZOPEN4: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2582 case NFA_ZOPEN5: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2583 case NFA_ZOPEN6: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2584 case NFA_ZOPEN7: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2585 case NFA_ZOPEN8: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2586 case NFA_ZOPEN9: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2587 #endif |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2588 case NFA_NOPEN: /* \%( \) "Invisible Submatch" */ |
4444 | 2589 if (nfa_calc_size == TRUE) |
2590 { | |
2591 nstate += 2; | |
2592 break; | |
2593 } | |
2594 | |
2595 mopen = *p; | |
2596 switch (*p) | |
2597 { | |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2598 case NFA_NOPEN: mclose = NFA_NCLOSE; break; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2599 #ifdef FEAT_SYN_HL |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2600 case NFA_ZOPEN: mclose = NFA_ZCLOSE; break; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2601 case NFA_ZOPEN1: mclose = NFA_ZCLOSE1; break; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2602 case NFA_ZOPEN2: mclose = NFA_ZCLOSE2; break; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2603 case NFA_ZOPEN3: mclose = NFA_ZCLOSE3; break; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2604 case NFA_ZOPEN4: mclose = NFA_ZCLOSE4; break; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2605 case NFA_ZOPEN5: mclose = NFA_ZCLOSE5; break; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2606 case NFA_ZOPEN6: mclose = NFA_ZCLOSE6; break; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2607 case NFA_ZOPEN7: mclose = NFA_ZCLOSE7; break; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2608 case NFA_ZOPEN8: mclose = NFA_ZCLOSE8; break; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2609 case NFA_ZOPEN9: mclose = NFA_ZCLOSE9; break; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2610 #endif |
4531
1be43c095aff
updated for version 7.3.1013
Bram Moolenaar <bram@vim.org>
parents:
4529
diff
changeset
|
2611 #ifdef FEAT_MBYTE |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2612 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
|
2613 #endif |
4444 | 2614 default: |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2615 /* NFA_MOPEN, NFA_MOPEN1 .. NFA_MOPEN9 */ |
4444 | 2616 mclose = *p + NSUBEXP; |
2617 break; | |
2618 } | |
2619 | |
2620 /* Allow "NFA_MOPEN" as a valid postfix representation for | |
2621 * the empty regexp "". In this case, the NFA will be | |
2622 * NFA_MOPEN -> NFA_MCLOSE. Note that this also allows | |
2623 * empty groups of parenthesis, and empty mbyte chars */ | |
2624 if (stackp == stack) | |
2625 { | |
4696
ed4e689bbea1
updated for version 7.3.1095
Bram Moolenaar <bram@vim.org>
parents:
4694
diff
changeset
|
2626 s = alloc_state(mopen, NULL, NULL); |
4444 | 2627 if (s == NULL) |
4484 | 2628 goto theend; |
4696
ed4e689bbea1
updated for version 7.3.1095
Bram Moolenaar <bram@vim.org>
parents:
4694
diff
changeset
|
2629 s1 = alloc_state(mclose, NULL, NULL); |
4444 | 2630 if (s1 == NULL) |
4484 | 2631 goto theend; |
4444 | 2632 patch(list1(&s->out), s1); |
2633 PUSH(frag(s, list1(&s1->out))); | |
2634 break; | |
2635 } | |
2636 | |
2637 /* At least one node was emitted before NFA_MOPEN, so | |
2638 * at least one node will be between NFA_MOPEN and NFA_MCLOSE */ | |
2639 e = POP(); | |
4696
ed4e689bbea1
updated for version 7.3.1095
Bram Moolenaar <bram@vim.org>
parents:
4694
diff
changeset
|
2640 s = alloc_state(mopen, e.start, NULL); /* `(' */ |
4444 | 2641 if (s == NULL) |
4484 | 2642 goto theend; |
4444 | 2643 |
4696
ed4e689bbea1
updated for version 7.3.1095
Bram Moolenaar <bram@vim.org>
parents:
4694
diff
changeset
|
2644 s1 = alloc_state(mclose, NULL, NULL); /* `)' */ |
4444 | 2645 if (s1 == NULL) |
4484 | 2646 goto theend; |
4444 | 2647 patch(e.out, s1); |
2648 | |
4531
1be43c095aff
updated for version 7.3.1013
Bram Moolenaar <bram@vim.org>
parents:
4529
diff
changeset
|
2649 #ifdef FEAT_MBYTE |
4527
55bcaa1d2749
updated for version 7.3.1011
Bram Moolenaar <bram@vim.org>
parents:
4525
diff
changeset
|
2650 if (mopen == NFA_COMPOSING) |
55bcaa1d2749
updated for version 7.3.1011
Bram Moolenaar <bram@vim.org>
parents:
4525
diff
changeset
|
2651 /* COMPOSING->out1 = END_COMPOSING */ |
4444 | 2652 patch(list1(&s->out1), s1); |
4531
1be43c095aff
updated for version 7.3.1013
Bram Moolenaar <bram@vim.org>
parents:
4529
diff
changeset
|
2653 #endif |
4444 | 2654 |
2655 PUSH(frag(s, list1(&s1->out))); | |
2656 break; | |
2657 | |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2658 case NFA_BACKREF1: |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2659 case NFA_BACKREF2: |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2660 case NFA_BACKREF3: |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2661 case NFA_BACKREF4: |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2662 case NFA_BACKREF5: |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2663 case NFA_BACKREF6: |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2664 case NFA_BACKREF7: |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2665 case NFA_BACKREF8: |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2666 case NFA_BACKREF9: |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2667 #ifdef FEAT_SYN_HL |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2668 case NFA_ZREF1: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2669 case NFA_ZREF2: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2670 case NFA_ZREF3: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2671 case NFA_ZREF4: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2672 case NFA_ZREF5: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2673 case NFA_ZREF6: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2674 case NFA_ZREF7: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2675 case NFA_ZREF8: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2676 case NFA_ZREF9: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2677 #endif |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2678 if (nfa_calc_size == TRUE) |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2679 { |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2680 nstate += 2; |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2681 break; |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2682 } |
4696
ed4e689bbea1
updated for version 7.3.1095
Bram Moolenaar <bram@vim.org>
parents:
4694
diff
changeset
|
2683 s = alloc_state(*p, NULL, NULL); |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2684 if (s == NULL) |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2685 goto theend; |
4696
ed4e689bbea1
updated for version 7.3.1095
Bram Moolenaar <bram@vim.org>
parents:
4694
diff
changeset
|
2686 s1 = alloc_state(NFA_SKIP, NULL, NULL); |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2687 if (s1 == NULL) |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2688 goto theend; |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2689 patch(list1(&s->out), s1); |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2690 PUSH(frag(s, list1(&s1->out))); |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2691 break; |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2692 |
4583
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
2693 case NFA_LNUM: |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
2694 case NFA_LNUM_GT: |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
2695 case NFA_LNUM_LT: |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
2696 case NFA_VCOL: |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
2697 case NFA_VCOL_GT: |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
2698 case NFA_VCOL_LT: |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
2699 case NFA_COL: |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
2700 case NFA_COL_GT: |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
2701 case NFA_COL_LT: |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
2702 if (nfa_calc_size == TRUE) |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
2703 { |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
2704 nstate += 1; |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
2705 break; |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
2706 } |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
2707 e1 = POP(); |
4696
ed4e689bbea1
updated for version 7.3.1095
Bram Moolenaar <bram@vim.org>
parents:
4694
diff
changeset
|
2708 s = alloc_state(*p, NULL, NULL); |
4583
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
2709 if (s == NULL) |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
2710 goto theend; |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
2711 s->val = e1.start->c; |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
2712 PUSH(frag(s, list1(&s->out))); |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
2713 break; |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
2714 |
4444 | 2715 case NFA_ZSTART: |
2716 case NFA_ZEND: | |
2717 default: | |
2718 /* Operands */ | |
2719 if (nfa_calc_size == TRUE) | |
2720 { | |
4458 | 2721 nstate++; |
4444 | 2722 break; |
2723 } | |
4696
ed4e689bbea1
updated for version 7.3.1095
Bram Moolenaar <bram@vim.org>
parents:
4694
diff
changeset
|
2724 s = alloc_state(*p, NULL, NULL); |
4444 | 2725 if (s == NULL) |
4484 | 2726 goto theend; |
4444 | 2727 PUSH(frag(s, list1(&s->out))); |
2728 break; | |
2729 | |
2730 } /* switch(*p) */ | |
2731 | |
2732 } /* for(p = postfix; *p; ++p) */ | |
2733 | |
2734 if (nfa_calc_size == TRUE) | |
2735 { | |
4458 | 2736 nstate++; |
4484 | 2737 goto theend; /* Return value when counting size is ignored anyway */ |
4444 | 2738 } |
2739 | |
2740 e = POP(); | |
2741 if (stackp != stack) | |
2742 EMSG_RET_NULL(_("E875: (NFA regexp) (While converting from postfix to NFA), too many states left on stack")); | |
2743 | |
2744 if (istate >= nstate) | |
2745 EMSG_RET_NULL(_("E876: (NFA regexp) Not enough space to store the whole NFA ")); | |
2746 | |
2747 matchstate = &state_ptr[istate++]; /* the match state */ | |
2748 matchstate->c = NFA_MATCH; | |
2749 matchstate->out = matchstate->out1 = NULL; | |
2750 | |
2751 patch(e.out, matchstate); | |
4484 | 2752 ret = e.start; |
2753 | |
2754 theend: | |
2755 vim_free(stack); | |
2756 return ret; | |
4444 | 2757 |
2758 #undef POP1 | |
2759 #undef PUSH1 | |
2760 #undef POP2 | |
2761 #undef PUSH2 | |
2762 #undef POP | |
2763 #undef PUSH | |
2764 } | |
2765 | |
2766 /**************************************************************** | |
2767 * NFA execution code. | |
2768 ****************************************************************/ | |
2769 | |
4563
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
2770 typedef struct |
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
2771 { |
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
2772 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
|
2773 |
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
2774 /* 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
|
2775 union |
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
2776 { |
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
2777 struct multipos |
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
2778 { |
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
2779 lpos_T start; |
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
2780 lpos_T end; |
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
2781 } multi[NSUBEXP]; |
4563
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
2782 struct linepos |
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
2783 { |
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
2784 char_u *start; |
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
2785 char_u *end; |
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
2786 } line[NSUBEXP]; |
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
2787 } list; |
4563
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
2788 } regsub_T; |
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
2789 |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2790 typedef struct |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2791 { |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2792 regsub_T norm; /* \( .. \) matches */ |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2793 #ifdef FEAT_SYN_HL |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2794 regsub_T synt; /* \z( .. \) matches */ |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2795 #endif |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2796 } regsubs_T; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2797 |
4561
4d81fdda8f35
updated for version 7.3.1028
Bram Moolenaar <bram@vim.org>
parents:
4559
diff
changeset
|
2798 /* 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
|
2799 typedef struct |
4444 | 2800 { |
2801 nfa_state_T *state; | |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2802 int count; |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2803 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
|
2804 } nfa_thread_T; |
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
2805 |
4561
4d81fdda8f35
updated for version 7.3.1028
Bram Moolenaar <bram@vim.org>
parents:
4559
diff
changeset
|
2806 /* nfa_list_T contains the alternative NFA execution states. */ |
4444 | 2807 typedef struct |
2808 { | |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2809 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
|
2810 int n; /* nr of states currently in "t" */ |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2811 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
|
2812 int id; /* ID of the list */ |
4539
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
2813 } nfa_list_T; |
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
2814 |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2815 #ifdef ENABLE_LOG |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2816 static void log_subsexpr __ARGS((regsubs_T *subs)); |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2817 static void log_subexpr __ARGS((regsub_T *sub)); |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2818 |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2819 static void |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2820 log_subsexpr(subs) |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2821 regsubs_T *subs; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2822 { |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2823 log_subexpr(&subs->norm); |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2824 # ifdef FEAT_SYN_HL |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2825 log_subexpr(&subs->synt); |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2826 # endif |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2827 } |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2828 |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2829 static void |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2830 log_subexpr(sub) |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2831 regsub_T *sub; |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2832 { |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2833 int j; |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2834 |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2835 for (j = 0; j < sub->in_use; j++) |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2836 if (REG_MULTI) |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2837 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
|
2838 j, |
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
2839 sub->list.multi[j].start.col, |
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
2840 (int)sub->list.multi[j].start.lnum, |
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
2841 sub->list.multi[j].end.col, |
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
2842 (int)sub->list.multi[j].end.lnum); |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2843 else |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2844 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
|
2845 j, |
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
2846 (char *)sub->list.line[j].start, |
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
2847 (char *)sub->list.line[j].end); |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2848 fprintf(log_fd, "\n"); |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2849 } |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2850 #endif |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2851 |
4561
4d81fdda8f35
updated for version 7.3.1028
Bram Moolenaar <bram@vim.org>
parents:
4559
diff
changeset
|
2852 /* 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
|
2853 static int nfa_match; |
4d81fdda8f35
updated for version 7.3.1028
Bram Moolenaar <bram@vim.org>
parents:
4559
diff
changeset
|
2854 |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2855 static void clear_sub __ARGS((regsub_T *sub)); |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2856 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
|
2857 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
|
2858 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
|
2859 static void addstate __ARGS((nfa_list_T *l, nfa_state_T *state, regsubs_T *subs, int off)); |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2860 static void addstate_here __ARGS((nfa_list_T *l, nfa_state_T *state, regsubs_T *subs, int *ip)); |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2861 |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2862 static void |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2863 clear_sub(sub) |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2864 regsub_T *sub; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2865 { |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2866 if (REG_MULTI) |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2867 /* Use 0xff to set lnum to -1 */ |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2868 vim_memset(sub->list.multi, 0xff, |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2869 sizeof(struct multipos) * nfa_nsubexpr); |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2870 else |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2871 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
|
2872 sub->in_use = 0; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2873 } |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2874 |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2875 /* |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2876 * Copy the submatches from "from" to "to". |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2877 */ |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2878 static void |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2879 copy_sub(to, from) |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2880 regsub_T *to; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2881 regsub_T *from; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2882 { |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2883 to->in_use = from->in_use; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2884 if (from->in_use > 0) |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2885 { |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2886 /* Copy the match start and end positions. */ |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2887 if (REG_MULTI) |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2888 mch_memmove(&to->list.multi[0], |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2889 &from->list.multi[0], |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2890 sizeof(struct multipos) * from->in_use); |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2891 else |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2892 mch_memmove(&to->list.line[0], |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2893 &from->list.line[0], |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2894 sizeof(struct linepos) * from->in_use); |
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 } |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2897 |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2898 /* |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2899 * Like copy_sub() but exclude the main match. |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2900 */ |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2901 static void |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2902 copy_sub_off(to, from) |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2903 regsub_T *to; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2904 regsub_T *from; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2905 { |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2906 if (to->in_use < from->in_use) |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2907 to->in_use = from->in_use; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2908 if (from->in_use > 1) |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2909 { |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2910 /* Copy the match start and end positions. */ |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2911 if (REG_MULTI) |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2912 mch_memmove(&to->list.multi[1], |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2913 &from->list.multi[1], |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2914 sizeof(struct multipos) * (from->in_use - 1)); |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2915 else |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2916 mch_memmove(&to->list.line[1], |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2917 &from->list.line[1], |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2918 sizeof(struct linepos) * (from->in_use - 1)); |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2919 } |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2920 } |
4444 | 2921 |
4647
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2922 /* |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2923 * 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
|
2924 */ |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2925 static int |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2926 sub_equal(sub1, sub2) |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2927 regsub_T *sub1; |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2928 regsub_T *sub2; |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2929 { |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2930 int i; |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2931 int todo; |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2932 linenr_T s1, e1; |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2933 linenr_T s2, e2; |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2934 char_u *sp1, *ep1; |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2935 char_u *sp2, *ep2; |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2936 |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2937 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
|
2938 if (REG_MULTI) |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2939 { |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2940 for (i = 0; i < todo; ++i) |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2941 { |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2942 if (i < sub1->in_use) |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2943 { |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2944 s1 = sub1->list.multi[i].start.lnum; |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2945 e1 = sub1->list.multi[i].end.lnum; |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2946 } |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2947 else |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2948 { |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2949 s1 = 0; |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2950 e1 = 0; |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2951 } |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2952 if (i < sub2->in_use) |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2953 { |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2954 s2 = sub2->list.multi[i].start.lnum; |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2955 e2 = sub2->list.multi[i].end.lnum; |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2956 } |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2957 else |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2958 { |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2959 s2 = 0; |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2960 e2 = 0; |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2961 } |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2962 if (s1 != s2 || e1 != e2) |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2963 return FALSE; |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2964 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
|
2965 != sub2->list.multi[i].start.col) |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2966 return FALSE; |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2967 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
|
2968 != sub2->list.multi[i].end.col) |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2969 return FALSE; |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2970 } |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2971 } |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2972 else |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2973 { |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2974 for (i = 0; i < todo; ++i) |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2975 { |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2976 if (i < sub1->in_use) |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2977 { |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2978 sp1 = sub1->list.line[i].start; |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2979 ep1 = sub1->list.line[i].end; |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2980 } |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2981 else |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2982 { |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2983 sp1 = NULL; |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2984 ep1 = NULL; |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2985 } |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2986 if (i < sub2->in_use) |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2987 { |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2988 sp2 = sub2->list.line[i].start; |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2989 ep2 = sub2->list.line[i].end; |
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 else |
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 sp2 = NULL; |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2994 ep2 = NULL; |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2995 } |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2996 if (sp1 != sp2 || ep1 != ep2) |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2997 return FALSE; |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2998 } |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2999 } |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3000 |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3001 return TRUE; |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3002 } |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3003 |
4712
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
3004 #ifdef ENABLE_LOG |
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
3005 static void |
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
3006 report_state(char *action, regsub_T *sub, nfa_state_T *state, int lid); |
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
3007 { |
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
3008 int col; |
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
3009 |
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
3010 if (sub->in_use <= 0) |
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
3011 col = -1; |
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
3012 else if (REG_MULTI) |
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
3013 col = sub->list.multi[0].start.col; |
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
3014 else |
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
3015 col = (int)(sub->list.line[0].start - regline); |
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
3016 nfa_set_code(state->c); |
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
3017 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
|
3018 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
|
3019 } |
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
3020 #endif |
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
3021 |
4444 | 3022 static void |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3023 addstate(l, state, subs, off) |
4539
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3024 nfa_list_T *l; /* runtime state list */ |
4444 | 3025 nfa_state_T *state; /* state to update */ |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3026 regsubs_T *subs; /* pointers to subexpressions */ |
4515
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
3027 int off; /* byte offset, when -1 go to next line */ |
4444 | 3028 { |
4561
4d81fdda8f35
updated for version 7.3.1028
Bram Moolenaar <bram@vim.org>
parents:
4559
diff
changeset
|
3029 int subidx; |
4647
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3030 nfa_thread_T *thread; |
4561
4d81fdda8f35
updated for version 7.3.1028
Bram Moolenaar <bram@vim.org>
parents:
4559
diff
changeset
|
3031 lpos_T save_lpos; |
4563
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3032 int save_in_use; |
4561
4d81fdda8f35
updated for version 7.3.1028
Bram Moolenaar <bram@vim.org>
parents:
4559
diff
changeset
|
3033 char_u *save_ptr; |
4563
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3034 int i; |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3035 regsub_T *sub; |
4657
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3036 #ifdef ENABLE_LOG |
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3037 int did_print = FALSE; |
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3038 #endif |
4444 | 3039 |
3040 if (l == NULL || state == NULL) | |
3041 return; | |
3042 | |
3043 switch (state->c) | |
3044 { | |
3045 case NFA_SPLIT: | |
3046 case NFA_NOT: | |
3047 case NFA_NOPEN: | |
3048 case NFA_NCLOSE: | |
3049 case NFA_MCLOSE: | |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3050 case NFA_MCLOSE1: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3051 case NFA_MCLOSE2: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3052 case NFA_MCLOSE3: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3053 case NFA_MCLOSE4: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3054 case NFA_MCLOSE5: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3055 case NFA_MCLOSE6: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3056 case NFA_MCLOSE7: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3057 case NFA_MCLOSE8: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3058 case NFA_MCLOSE9: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3059 #ifdef FEAT_SYN_HL |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3060 case NFA_ZCLOSE: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3061 case NFA_ZCLOSE1: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3062 case NFA_ZCLOSE2: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3063 case NFA_ZCLOSE3: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3064 case NFA_ZCLOSE4: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3065 case NFA_ZCLOSE5: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3066 case NFA_ZCLOSE6: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3067 case NFA_ZCLOSE7: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3068 case NFA_ZCLOSE8: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3069 case NFA_ZCLOSE9: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3070 #endif |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3071 /* 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
|
3072 * "out1" may be added below. */ |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3073 break; |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3074 |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3075 case NFA_MOPEN: |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3076 case NFA_MOPEN1: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3077 case NFA_MOPEN2: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3078 case NFA_MOPEN3: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3079 case NFA_MOPEN4: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3080 case NFA_MOPEN5: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3081 case NFA_MOPEN6: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3082 case NFA_MOPEN7: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3083 case NFA_MOPEN8: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3084 case NFA_MOPEN9: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3085 #ifdef FEAT_SYN_HL |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3086 case NFA_ZOPEN: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3087 case NFA_ZOPEN1: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3088 case NFA_ZOPEN2: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3089 case NFA_ZOPEN3: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3090 case NFA_ZOPEN4: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3091 case NFA_ZOPEN5: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3092 case NFA_ZOPEN6: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3093 case NFA_ZOPEN7: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3094 case NFA_ZOPEN8: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3095 case NFA_ZOPEN9: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3096 #endif |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3097 /* 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
|
3098 * when it was tried to be added to this list before. */ |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3099 if (state->lastlist == l->id) |
4657
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3100 goto skip_add; |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3101 state->lastlist = l->id; |
4444 | 3102 break; |
3103 | |
4694
efc4fb311d5d
updated for version 7.3.1094
Bram Moolenaar <bram@vim.org>
parents:
4692
diff
changeset
|
3104 case NFA_BOL: |
efc4fb311d5d
updated for version 7.3.1094
Bram Moolenaar <bram@vim.org>
parents:
4692
diff
changeset
|
3105 case NFA_BOF: |
efc4fb311d5d
updated for version 7.3.1094
Bram Moolenaar <bram@vim.org>
parents:
4692
diff
changeset
|
3106 /* "^" 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
|
3107 * 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
|
3108 * match. */ |
efc4fb311d5d
updated for version 7.3.1094
Bram Moolenaar <bram@vim.org>
parents:
4692
diff
changeset
|
3109 if (reginput > regline |
efc4fb311d5d
updated for version 7.3.1094
Bram Moolenaar <bram@vim.org>
parents:
4692
diff
changeset
|
3110 && (nfa_endp == NULL |
efc4fb311d5d
updated for version 7.3.1094
Bram Moolenaar <bram@vim.org>
parents:
4692
diff
changeset
|
3111 || !REG_MULTI |
efc4fb311d5d
updated for version 7.3.1094
Bram Moolenaar <bram@vim.org>
parents:
4692
diff
changeset
|
3112 || reglnum == nfa_endp->se_u.pos.lnum)) |
efc4fb311d5d
updated for version 7.3.1094
Bram Moolenaar <bram@vim.org>
parents:
4692
diff
changeset
|
3113 goto skip_add; |
efc4fb311d5d
updated for version 7.3.1094
Bram Moolenaar <bram@vim.org>
parents:
4692
diff
changeset
|
3114 /* FALLTHROUGH */ |
efc4fb311d5d
updated for version 7.3.1094
Bram Moolenaar <bram@vim.org>
parents:
4692
diff
changeset
|
3115 |
4444 | 3116 default: |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3117 if (state->lastlist == l->id) |
4444 | 3118 { |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3119 /* 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
|
3120 * 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
|
3121 if (!nfa_has_backref) |
4657
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3122 { |
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3123 skip_add: |
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3124 #ifdef ENABLE_LOG |
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3125 nfa_set_code(state->c); |
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3126 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
|
3127 abs(state->id), l->id, state->c, code); |
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3128 #endif |
4647
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3129 return; |
4657
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3130 } |
4647
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3131 |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3132 /* 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
|
3133 * positions. */ |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3134 for (i = 0; i < l->n; ++i) |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3135 { |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3136 thread = &l->t[i]; |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3137 if (thread->state->id == state->id |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3138 && sub_equal(&thread->subs.norm, &subs->norm) |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3139 #ifdef FEAT_SYN_HL |
4712
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
3140 && (!nfa_has_zsubexpr || |
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
3141 sub_equal(&thread->subs.synt, &subs->synt)) |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3142 #endif |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3143 ) |
4657
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3144 goto skip_add; |
4647
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3145 } |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3146 } |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3147 |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3148 /* when there are backreferences the number of states may be (a |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3149 * lot) bigger */ |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3150 if (nfa_has_backref && l->n == l->len) |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3151 { |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3152 int newlen = l->len * 3 / 2 + 50; |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3153 |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3154 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
|
3155 l->len = newlen; |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3156 } |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3157 |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3158 /* add the state to the list */ |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3159 state->lastlist = l->id; |
4647
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3160 thread = &l->t[l->n++]; |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3161 thread->state = state; |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3162 copy_sub(&thread->subs.norm, &subs->norm); |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3163 #ifdef FEAT_SYN_HL |
4712
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
3164 if (nfa_has_zsubexpr) |
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
3165 copy_sub(&thread->subs.synt, &subs->synt); |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3166 #endif |
4657
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3167 #ifdef ENABLE_LOG |
4712
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
3168 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
|
3169 did_print = TRUE; |
4657
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3170 #endif |
4444 | 3171 } |
3172 | |
3173 #ifdef ENABLE_LOG | |
4657
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3174 if (!did_print) |
4712
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
3175 report_state("Processing", &subs->norm, state, l->id); |
4444 | 3176 #endif |
3177 switch (state->c) | |
3178 { | |
3179 case NFA_MATCH: | |
4561
4d81fdda8f35
updated for version 7.3.1028
Bram Moolenaar <bram@vim.org>
parents:
4559
diff
changeset
|
3180 nfa_match = TRUE; |
4444 | 3181 break; |
3182 | |
3183 case NFA_SPLIT: | |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3184 /* order matters here */ |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3185 addstate(l, state->out, subs, off); |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3186 addstate(l, state->out1, subs, off); |
4444 | 3187 break; |
3188 | |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3189 case NFA_SKIP_CHAR: |
4444 | 3190 case NFA_NOPEN: |
3191 case NFA_NCLOSE: | |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3192 addstate(l, state->out, subs, off); |
4444 | 3193 break; |
3194 | |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3195 case NFA_MOPEN: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3196 case NFA_MOPEN1: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3197 case NFA_MOPEN2: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3198 case NFA_MOPEN3: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3199 case NFA_MOPEN4: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3200 case NFA_MOPEN5: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3201 case NFA_MOPEN6: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3202 case NFA_MOPEN7: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3203 case NFA_MOPEN8: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3204 case NFA_MOPEN9: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3205 #ifdef FEAT_SYN_HL |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3206 case NFA_ZOPEN: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3207 case NFA_ZOPEN1: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3208 case NFA_ZOPEN2: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3209 case NFA_ZOPEN3: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3210 case NFA_ZOPEN4: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3211 case NFA_ZOPEN5: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3212 case NFA_ZOPEN6: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3213 case NFA_ZOPEN7: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3214 case NFA_ZOPEN8: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3215 case NFA_ZOPEN9: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3216 #endif |
4444 | 3217 case NFA_ZSTART: |
3218 if (state->c == NFA_ZSTART) | |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3219 { |
4444 | 3220 subidx = 0; |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3221 sub = &subs->norm; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3222 } |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3223 #ifdef FEAT_SYN_HL |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3224 else if (state->c >= NFA_ZOPEN) |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3225 { |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3226 subidx = state->c - NFA_ZOPEN; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3227 sub = &subs->synt; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3228 } |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3229 #endif |
4561
4d81fdda8f35
updated for version 7.3.1028
Bram Moolenaar <bram@vim.org>
parents:
4559
diff
changeset
|
3230 else |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3231 { |
4561
4d81fdda8f35
updated for version 7.3.1028
Bram Moolenaar <bram@vim.org>
parents:
4559
diff
changeset
|
3232 subidx = state->c - NFA_MOPEN; |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3233 sub = &subs->norm; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3234 } |
4444 | 3235 |
4563
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3236 /* 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
|
3237 * 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
|
3238 save_ptr = NULL; |
4444 | 3239 if (REG_MULTI) |
3240 { | |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3241 if (subidx < sub->in_use) |
4563
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3242 { |
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3243 save_lpos = sub->list.multi[subidx].start; |
4563
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3244 save_in_use = -1; |
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3245 } |
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3246 else |
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3247 { |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3248 save_in_use = sub->in_use; |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3249 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
|
3250 { |
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3251 sub->list.multi[i].start.lnum = -1; |
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3252 sub->list.multi[i].end.lnum = -1; |
4563
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3253 } |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3254 sub->in_use = subidx + 1; |
4563
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3255 } |
4515
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
3256 if (off == -1) |
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
3257 { |
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3258 sub->list.multi[subidx].start.lnum = reglnum + 1; |
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3259 sub->list.multi[subidx].start.col = 0; |
4515
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
3260 } |
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
3261 else |
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
3262 { |
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3263 sub->list.multi[subidx].start.lnum = reglnum; |
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3264 sub->list.multi[subidx].start.col = |
4515
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
3265 (colnr_T)(reginput - regline + off); |
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
3266 } |
4444 | 3267 } |
3268 else | |
3269 { | |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3270 if (subidx < sub->in_use) |
4563
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3271 { |
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3272 save_ptr = sub->list.line[subidx].start; |
4563
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3273 save_in_use = -1; |
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3274 } |
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3275 else |
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3276 { |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3277 save_in_use = sub->in_use; |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3278 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
|
3279 { |
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3280 sub->list.line[i].start = NULL; |
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3281 sub->list.line[i].end = NULL; |
4563
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3282 } |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3283 sub->in_use = subidx + 1; |
4563
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3284 } |
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3285 sub->list.line[subidx].start = reginput + off; |
4444 | 3286 } |
3287 | |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3288 addstate(l, state->out, subs, off); |
4444 | 3289 |
4563
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3290 if (save_in_use == -1) |
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3291 { |
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3292 if (REG_MULTI) |
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3293 sub->list.multi[subidx].start = save_lpos; |
4563
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3294 else |
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3295 sub->list.line[subidx].start = save_ptr; |
4563
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3296 } |
4444 | 3297 else |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3298 sub->in_use = save_in_use; |
4444 | 3299 break; |
3300 | |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3301 case NFA_MCLOSE: |
4553
7b835b2969af
updated for version 7.3.1024
Bram Moolenaar <bram@vim.org>
parents:
4551
diff
changeset
|
3302 if (nfa_has_zend) |
4444 | 3303 { |
4569
f262fb02889d
updated for version 7.3.1032
Bram Moolenaar <bram@vim.org>
parents:
4567
diff
changeset
|
3304 /* 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
|
3305 * 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
|
3306 addstate(l, state->out, subs, off); |
4444 | 3307 break; |
3308 } | |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3309 case NFA_MCLOSE1: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3310 case NFA_MCLOSE2: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3311 case NFA_MCLOSE3: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3312 case NFA_MCLOSE4: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3313 case NFA_MCLOSE5: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3314 case NFA_MCLOSE6: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3315 case NFA_MCLOSE7: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3316 case NFA_MCLOSE8: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3317 case NFA_MCLOSE9: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3318 #ifdef FEAT_SYN_HL |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3319 case NFA_ZCLOSE: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3320 case NFA_ZCLOSE1: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3321 case NFA_ZCLOSE2: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3322 case NFA_ZCLOSE3: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3323 case NFA_ZCLOSE4: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3324 case NFA_ZCLOSE5: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3325 case NFA_ZCLOSE6: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3326 case NFA_ZCLOSE7: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3327 case NFA_ZCLOSE8: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3328 case NFA_ZCLOSE9: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3329 #endif |
4444 | 3330 case NFA_ZEND: |
3331 if (state->c == NFA_ZEND) | |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3332 { |
4444 | 3333 subidx = 0; |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3334 sub = &subs->norm; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3335 } |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3336 #ifdef FEAT_SYN_HL |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3337 else if (state->c >= NFA_ZCLOSE) |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3338 { |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3339 subidx = state->c - NFA_ZCLOSE; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3340 sub = &subs->synt; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3341 } |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3342 #endif |
4561
4d81fdda8f35
updated for version 7.3.1028
Bram Moolenaar <bram@vim.org>
parents:
4559
diff
changeset
|
3343 else |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3344 { |
4561
4d81fdda8f35
updated for version 7.3.1028
Bram Moolenaar <bram@vim.org>
parents:
4559
diff
changeset
|
3345 subidx = state->c - NFA_MCLOSE; |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3346 sub = &subs->norm; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3347 } |
4444 | 3348 |
4563
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3349 /* 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
|
3350 * has done that. */ |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3351 save_in_use = sub->in_use; |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3352 if (sub->in_use <= subidx) |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3353 sub->in_use = subidx + 1; |
4444 | 3354 if (REG_MULTI) |
3355 { | |
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3356 save_lpos = sub->list.multi[subidx].end; |
4515
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
3357 if (off == -1) |
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
3358 { |
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3359 sub->list.multi[subidx].end.lnum = reglnum + 1; |
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3360 sub->list.multi[subidx].end.col = 0; |
4515
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
3361 } |
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
3362 else |
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
3363 { |
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3364 sub->list.multi[subidx].end.lnum = reglnum; |
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3365 sub->list.multi[subidx].end.col = |
4561
4d81fdda8f35
updated for version 7.3.1028
Bram Moolenaar <bram@vim.org>
parents:
4559
diff
changeset
|
3366 (colnr_T)(reginput - regline + off); |
4515
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
3367 } |
4444 | 3368 } |
3369 else | |
3370 { | |
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3371 save_ptr = sub->list.line[subidx].end; |
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3372 sub->list.line[subidx].end = reginput + off; |
4444 | 3373 } |
3374 | |
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 |
3377 if (REG_MULTI) | |
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3378 sub->list.multi[subidx].end = save_lpos; |
4444 | 3379 else |
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3380 sub->list.line[subidx].end = save_ptr; |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3381 sub->in_use = save_in_use; |
4444 | 3382 break; |
3383 } | |
3384 } | |
3385 | |
3386 /* | |
4539
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3387 * 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
|
3388 * 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
|
3389 * 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
|
3390 * matters for alternatives. |
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3391 */ |
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3392 static void |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3393 addstate_here(l, state, subs, ip) |
4539
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3394 nfa_list_T *l; /* runtime state list */ |
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3395 nfa_state_T *state; /* state to update */ |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3396 regsubs_T *subs; /* pointers to subexpressions */ |
4539
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3397 int *ip; |
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3398 { |
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3399 int tlen = l->n; |
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3400 int count; |
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3401 int i = *ip; |
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3402 |
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3403 /* 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
|
3404 addstate(l, state, subs, 0); |
4539
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3405 |
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3406 /* when "*ip" was at the end of the list, nothing to do */ |
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3407 if (i + 1 == tlen) |
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3408 return; |
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3409 |
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3410 /* 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
|
3411 count = l->n - tlen; |
4647
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3412 if (count == 1) |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3413 { |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3414 /* overwrite the current state */ |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3415 l->t[i] = l->t[l->n - 1]; |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3416 } |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3417 else if (count > 1) |
4539
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3418 { |
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3419 /* 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
|
3420 * end to the current position */ |
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3421 mch_memmove(&(l->t[i + count]), |
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3422 &(l->t[i + 1]), |
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3423 sizeof(nfa_thread_T) * (l->n - i - 1)); |
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3424 mch_memmove(&(l->t[i]), |
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3425 &(l->t[l->n - 1]), |
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3426 sizeof(nfa_thread_T) * count); |
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3427 } |
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3428 --l->n; |
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3429 *ip = i - 1; |
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3430 } |
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3431 |
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3432 /* |
4444 | 3433 * Check character class "class" against current character c. |
3434 */ | |
3435 static int | |
3436 check_char_class(class, c) | |
3437 int class; | |
3438 int c; | |
3439 { | |
3440 switch (class) | |
3441 { | |
3442 case NFA_CLASS_ALNUM: | |
4464 | 3443 if (c >= 1 && c <= 255 && isalnum(c)) |
4444 | 3444 return OK; |
3445 break; | |
3446 case NFA_CLASS_ALPHA: | |
4464 | 3447 if (c >= 1 && c <= 255 && isalpha(c)) |
4444 | 3448 return OK; |
3449 break; | |
3450 case NFA_CLASS_BLANK: | |
3451 if (c == ' ' || c == '\t') | |
3452 return OK; | |
3453 break; | |
3454 case NFA_CLASS_CNTRL: | |
4464 | 3455 if (c >= 1 && c <= 255 && iscntrl(c)) |
4444 | 3456 return OK; |
3457 break; | |
3458 case NFA_CLASS_DIGIT: | |
3459 if (VIM_ISDIGIT(c)) | |
3460 return OK; | |
3461 break; | |
3462 case NFA_CLASS_GRAPH: | |
4464 | 3463 if (c >= 1 && c <= 255 && isgraph(c)) |
4444 | 3464 return OK; |
3465 break; | |
3466 case NFA_CLASS_LOWER: | |
3467 if (MB_ISLOWER(c)) | |
3468 return OK; | |
3469 break; | |
3470 case NFA_CLASS_PRINT: | |
3471 if (vim_isprintc(c)) | |
3472 return OK; | |
3473 break; | |
3474 case NFA_CLASS_PUNCT: | |
4464 | 3475 if (c >= 1 && c <= 255 && ispunct(c)) |
4444 | 3476 return OK; |
3477 break; | |
3478 case NFA_CLASS_SPACE: | |
3479 if ((c >=9 && c <= 13) || (c == ' ')) | |
3480 return OK; | |
3481 break; | |
3482 case NFA_CLASS_UPPER: | |
3483 if (MB_ISUPPER(c)) | |
3484 return OK; | |
3485 break; | |
3486 case NFA_CLASS_XDIGIT: | |
3487 if (vim_isxdigit(c)) | |
3488 return OK; | |
3489 break; | |
3490 case NFA_CLASS_TAB: | |
3491 if (c == '\t') | |
3492 return OK; | |
3493 break; | |
3494 case NFA_CLASS_RETURN: | |
3495 if (c == '\r') | |
3496 return OK; | |
3497 break; | |
3498 case NFA_CLASS_BACKSPACE: | |
3499 if (c == '\b') | |
3500 return OK; | |
3501 break; | |
3502 case NFA_CLASS_ESCAPE: | |
3503 if (c == '\033') | |
3504 return OK; | |
3505 break; | |
3506 | |
3507 default: | |
3508 /* should not be here :P */ | |
3509 EMSG_RET_FAIL(_("E877: (NFA regexp) Invalid character class ")); | |
3510 } | |
3511 return FAIL; | |
3512 } | |
3513 | |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3514 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
|
3515 |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3516 /* |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3517 * Check for a match with subexpression "subidx". |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3518 * Return TRUE if it matches. |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3519 */ |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3520 static int |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3521 match_backref(sub, subidx, bytelen) |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3522 regsub_T *sub; /* pointers to subexpressions */ |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3523 int subidx; |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3524 int *bytelen; /* out: length of match in bytes */ |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3525 { |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3526 int len; |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3527 |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3528 if (sub->in_use <= subidx) |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3529 { |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3530 retempty: |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3531 /* backref was not set, match an empty string */ |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3532 *bytelen = 0; |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3533 return TRUE; |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3534 } |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3535 |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3536 if (REG_MULTI) |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3537 { |
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3538 if (sub->list.multi[subidx].start.lnum < 0 |
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3539 || sub->list.multi[subidx].end.lnum < 0) |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3540 goto retempty; |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3541 /* TODO: line breaks */ |
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3542 len = sub->list.multi[subidx].end.col |
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3543 - sub->list.multi[subidx].start.col; |
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3544 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
|
3545 reginput, &len) == 0) |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3546 { |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3547 *bytelen = len; |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3548 return TRUE; |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3549 } |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3550 } |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3551 else |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3552 { |
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3553 if (sub->list.line[subidx].start == NULL |
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3554 || sub->list.line[subidx].end == NULL) |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3555 goto retempty; |
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3556 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
|
3557 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
|
3558 { |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3559 *bytelen = len; |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3560 return TRUE; |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3561 } |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3562 } |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3563 return FALSE; |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3564 } |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3565 |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3566 #ifdef FEAT_SYN_HL |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3567 |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3568 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
|
3569 |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3570 /* |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3571 * Check for a match with \z subexpression "subidx". |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3572 * Return TRUE if it matches. |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3573 */ |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3574 static int |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3575 match_zref(subidx, bytelen) |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3576 int subidx; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3577 int *bytelen; /* out: length of match in bytes */ |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3578 { |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3579 int len; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3580 |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3581 cleanup_zsubexpr(); |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3582 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
|
3583 { |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3584 /* backref was not set, match an empty string */ |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3585 *bytelen = 0; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3586 return TRUE; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3587 } |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3588 |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3589 len = (int)STRLEN(re_extmatch_in->matches[subidx]); |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3590 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
|
3591 { |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3592 *bytelen = len; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3593 return TRUE; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3594 } |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3595 return FALSE; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3596 } |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3597 #endif |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3598 |
4444 | 3599 /* |
4712
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
3600 * 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
|
3601 * Also reset the IDs to zero. |
4444 | 3602 */ |
3603 static void | |
4712
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
3604 nfa_save_listids(prog, list) |
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
3605 nfa_regprog_T *prog; |
4444 | 3606 int *list; |
3607 { | |
4712
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
3608 int i; |
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
3609 nfa_state_T *p; |
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
3610 |
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
3611 /* 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
|
3612 p = &prog->state[0]; |
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
3613 for (i = prog->nstate; --i >= 0; ) |
4444 | 3614 { |
4712
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
3615 list[i] = p->lastlist; |
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
3616 p->lastlist = 0; |
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
3617 ++p; |
4444 | 3618 } |
3619 } | |
3620 | |
3621 /* | |
3622 * Restore list IDs from "list" to all NFA states. | |
3623 */ | |
3624 static void | |
4712
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
3625 nfa_restore_listids(prog, list) |
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
3626 nfa_regprog_T *prog; |
4444 | 3627 int *list; |
3628 { | |
4712
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
3629 int i; |
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
3630 nfa_state_T *p; |
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
3631 |
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
3632 p = &prog->state[0]; |
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
3633 for (i = prog->nstate; --i >= 0; ) |
4444 | 3634 { |
4712
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
3635 p->lastlist = list[i]; |
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
3636 ++p; |
4444 | 3637 } |
3638 } | |
3639 | |
4583
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
3640 static int |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
3641 nfa_re_num_cmp(val, op, pos) |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
3642 long_u val; |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
3643 int op; |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
3644 long_u pos; |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
3645 { |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
3646 if (op == 1) return pos > val; |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
3647 if (op == 2) return pos < val; |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
3648 return val == pos; |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
3649 } |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
3650 |
4712
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
3651 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
|
3652 |
4444 | 3653 /* |
3654 * Main matching routine. | |
3655 * | |
3656 * Run NFA to determine whether it matches reginput. | |
3657 * | |
4694
efc4fb311d5d
updated for version 7.3.1094
Bram Moolenaar <bram@vim.org>
parents:
4692
diff
changeset
|
3658 * 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
|
3659 * |
4444 | 3660 * Return TRUE if there is a match, FALSE otherwise. |
3661 * Note: Caller must ensure that: start != NULL. | |
3662 */ | |
3663 static int | |
4712
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
3664 nfa_regmatch(prog, start, submatch, m) |
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
3665 nfa_regprog_T *prog; |
4444 | 3666 nfa_state_T *start; |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3667 regsubs_T *submatch; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3668 regsubs_T *m; |
4444 | 3669 { |
3670 int result; | |
3671 int size = 0; | |
3672 int flag = 0; | |
4539
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3673 int go_to_nextline = FALSE; |
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3674 nfa_thread_T *t; |
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3675 nfa_list_T list[3]; |
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3676 nfa_list_T *listtbl[2][2]; |
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3677 nfa_list_T *ll; |
4444 | 3678 int listid = 1; |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
3679 int listidx; |
4539
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3680 nfa_list_T *thislist; |
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3681 nfa_list_T *nextlist; |
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3682 nfa_list_T *neglist; |
4444 | 3683 int *listids = NULL; |
4460 | 3684 #ifdef NFA_REGEXP_DEBUG_LOG |
4531
1be43c095aff
updated for version 7.3.1013
Bram Moolenaar <bram@vim.org>
parents:
4529
diff
changeset
|
3685 FILE *debug = fopen(NFA_REGEXP_DEBUG_LOG, "a"); |
4444 | 3686 |
3687 if (debug == NULL) | |
3688 { | |
4531
1be43c095aff
updated for version 7.3.1013
Bram Moolenaar <bram@vim.org>
parents:
4529
diff
changeset
|
3689 EMSG2(_("(NFA) COULD NOT OPEN %s !"), NFA_REGEXP_DEBUG_LOG); |
4444 | 3690 return FALSE; |
3691 } | |
3692 #endif | |
4561
4d81fdda8f35
updated for version 7.3.1028
Bram Moolenaar <bram@vim.org>
parents:
4559
diff
changeset
|
3693 nfa_match = FALSE; |
4444 | 3694 |
4563
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3695 /* Allocate memory for the lists of nodes. */ |
4539
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3696 size = (nstate + 1) * sizeof(nfa_thread_T); |
4647
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3697 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
|
3698 list[0].len = nstate + 1; |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3699 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
|
3700 list[1].len = nstate + 1; |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3701 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
|
3702 list[2].len = nstate + 1; |
4444 | 3703 if (list[0].t == NULL || list[1].t == NULL || list[2].t == NULL) |
3704 goto theend; | |
3705 | |
3706 #ifdef ENABLE_LOG | |
4531
1be43c095aff
updated for version 7.3.1013
Bram Moolenaar <bram@vim.org>
parents:
4529
diff
changeset
|
3707 log_fd = fopen(NFA_REGEXP_RUN_LOG, "a"); |
4444 | 3708 if (log_fd != NULL) |
3709 { | |
3710 fprintf(log_fd, "**********************************\n"); | |
3711 nfa_set_code(start->c); | |
3712 fprintf(log_fd, " RUNNING nfa_regmatch() starting with state %d, code %s\n", | |
3713 abs(start->id), code); | |
3714 fprintf(log_fd, "**********************************\n"); | |
3715 } | |
3716 else | |
3717 { | |
3718 EMSG(_("Could not open temporary log file for writing, displaying on stderr ... ")); | |
3719 log_fd = stderr; | |
3720 } | |
3721 #endif | |
3722 | |
3723 thislist = &list[0]; | |
3724 thislist->n = 0; | |
3725 nextlist = &list[1]; | |
3726 nextlist->n = 0; | |
3727 neglist = &list[2]; | |
3728 neglist->n = 0; | |
3729 #ifdef ENABLE_LOG | |
3730 fprintf(log_fd, "(---) STARTSTATE\n"); | |
3731 #endif | |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3732 thislist->id = listid; |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3733 addstate(thislist, start, m, 0); |
4444 | 3734 |
3735 /* There are two cases when the NFA advances: 1. input char matches the | |
3736 * NFA node and 2. input char does not match the NFA node, but the next | |
3737 * node is NFA_NOT. The following macro calls addstate() according to | |
3738 * these rules. It is used A LOT, so use the "listtbl" table for speed */ | |
3739 listtbl[0][0] = NULL; | |
3740 listtbl[0][1] = neglist; | |
3741 listtbl[1][0] = nextlist; | |
3742 listtbl[1][1] = NULL; | |
3743 #define ADD_POS_NEG_STATE(node) \ | |
3744 ll = listtbl[result ? 1 : 0][node->negated]; \ | |
3745 if (ll != NULL) \ | |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3746 addstate(ll, node->out , &t->subs, clen); |
4444 | 3747 |
3748 | |
3749 /* | |
3750 * Run for each character. | |
3751 */ | |
4515
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
3752 for (;;) |
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
3753 { |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
3754 int curc; |
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
3755 int clen; |
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
3756 |
4444 | 3757 #ifdef FEAT_MBYTE |
3758 if (has_mbyte) | |
3759 { | |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
3760 curc = (*mb_ptr2char)(reginput); |
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
3761 clen = (*mb_ptr2len)(reginput); |
4444 | 3762 } |
3763 else | |
3764 #endif | |
3765 { | |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
3766 curc = *reginput; |
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
3767 clen = 1; |
4444 | 3768 } |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
3769 if (curc == NUL) |
4515
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
3770 { |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
3771 clen = 0; |
4515
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
3772 go_to_nextline = FALSE; |
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
3773 } |
4444 | 3774 |
3775 /* swap lists */ | |
3776 thislist = &list[flag]; | |
3777 nextlist = &list[flag ^= 1]; | |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3778 nextlist->n = 0; /* clear nextlist */ |
4444 | 3779 listtbl[1][0] = nextlist; |
3780 ++listid; | |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3781 thislist->id = listid; |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3782 nextlist->id = listid + 1; |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3783 neglist->id = listid + 1; |
4444 | 3784 |
3785 #ifdef ENABLE_LOG | |
3786 fprintf(log_fd, "------------------------------------------\n"); | |
3787 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
|
3788 fprintf(log_fd, ">>> Advanced one character ... Current char is %c (code %d) \n", curc, (int)curc); |
4444 | 3789 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
|
3790 { |
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
3791 int i; |
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
3792 |
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
3793 for (i = 0; i < thislist->n; i++) |
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
3794 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
|
3795 } |
4444 | 3796 fprintf(log_fd, "\n"); |
3797 #endif | |
3798 | |
4460 | 3799 #ifdef NFA_REGEXP_DEBUG_LOG |
4444 | 3800 fprintf(debug, "\n-------------------\n"); |
3801 #endif | |
4480 | 3802 /* |
3803 * If the state lists are empty we can stop. | |
3804 */ | |
3805 if (thislist->n == 0 && neglist->n == 0) | |
3806 break; | |
4444 | 3807 |
3808 /* compute nextlist */ | |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
3809 for (listidx = 0; listidx < thislist->n || neglist->n > 0; ++listidx) |
4444 | 3810 { |
3811 if (neglist->n > 0) | |
3812 { | |
3813 t = &neglist->t[0]; | |
4468 | 3814 neglist->n--; |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
3815 listidx--; |
4444 | 3816 } |
3817 else | |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
3818 t = &thislist->t[listidx]; |
4444 | 3819 |
4460 | 3820 #ifdef NFA_REGEXP_DEBUG_LOG |
4444 | 3821 nfa_set_code(t->state->c); |
3822 fprintf(debug, "%s, ", code); | |
3823 #endif | |
3824 #ifdef ENABLE_LOG | |
4657
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3825 { |
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3826 int col; |
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3827 |
4690
9d97a0c045ef
updated for version 7.3.1092
Bram Moolenaar <bram@vim.org>
parents:
4688
diff
changeset
|
3828 if (t->subs.norm.in_use <= 0) |
4657
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3829 col = -1; |
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3830 else if (REG_MULTI) |
4690
9d97a0c045ef
updated for version 7.3.1092
Bram Moolenaar <bram@vim.org>
parents:
4688
diff
changeset
|
3831 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
|
3832 else |
4690
9d97a0c045ef
updated for version 7.3.1092
Bram Moolenaar <bram@vim.org>
parents:
4688
diff
changeset
|
3833 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
|
3834 nfa_set_code(t->state->c); |
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3835 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
|
3836 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
|
3837 } |
4444 | 3838 #endif |
3839 | |
3840 /* | |
3841 * Handle the possible codes of the current state. | |
3842 * The most important is NFA_MATCH. | |
3843 */ | |
3844 switch (t->state->c) | |
3845 { | |
3846 case NFA_MATCH: | |
4567
96c1a7850097
updated for version 7.3.1031
Bram Moolenaar <bram@vim.org>
parents:
4565
diff
changeset
|
3847 { |
4561
4d81fdda8f35
updated for version 7.3.1028
Bram Moolenaar <bram@vim.org>
parents:
4559
diff
changeset
|
3848 nfa_match = TRUE; |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3849 copy_sub(&submatch->norm, &t->subs.norm); |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3850 #ifdef FEAT_SYN_HL |
4712
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
3851 if (nfa_has_zsubexpr) |
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
3852 copy_sub(&submatch->synt, &t->subs.synt); |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3853 #endif |
4444 | 3854 #ifdef ENABLE_LOG |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3855 log_subsexpr(&t->subs); |
4444 | 3856 #endif |
4515
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
3857 /* 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
|
3858 * 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
|
3859 * 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
|
3860 * correct. */ |
7b835b2969af
updated for version 7.3.1024
Bram Moolenaar <bram@vim.org>
parents:
4551
diff
changeset
|
3861 if (nextlist->n == 0 && neglist->n == 0) |
7b835b2969af
updated for version 7.3.1024
Bram Moolenaar <bram@vim.org>
parents:
4551
diff
changeset
|
3862 clen = 0; |
4515
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
3863 goto nextchar; |
4567
96c1a7850097
updated for version 7.3.1031
Bram Moolenaar <bram@vim.org>
parents:
4565
diff
changeset
|
3864 } |
4444 | 3865 |
3866 case NFA_END_INVISIBLE: | |
4682
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3867 /* This is only encountered after a NFA_START_INVISIBLE or |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3868 * NFA_START_INVISIBLE_BEFORE node. |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3869 * They surround a zero-width group, used with "\@=", "\&", |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3870 * "\@!", "\@<=" and "\@<!". |
4444 | 3871 * If we got here, it means that the current "invisible" group |
3872 * finished successfully, so return control to the parent | |
3873 * nfa_regmatch(). Submatches are stored in *m, and used in | |
3874 * the parent call. */ | |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3875 if (start->c == NFA_MOPEN) |
4682
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3876 /* TODO: do we ever get here? */ |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3877 addstate_here(thislist, t->state->out, &t->subs, &listidx); |
4444 | 3878 else |
3879 { | |
4682
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3880 #ifdef ENABLE_LOG |
4694
efc4fb311d5d
updated for version 7.3.1094
Bram Moolenaar <bram@vim.org>
parents:
4692
diff
changeset
|
3881 if (nfa_endp != NULL) |
4682
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3882 { |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3883 if (REG_MULTI) |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3884 fprintf(log_fd, "Current lnum: %d, endp lnum: %d; current col: %d, endp col: %d\n", |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3885 (int)reglnum, |
4694
efc4fb311d5d
updated for version 7.3.1094
Bram Moolenaar <bram@vim.org>
parents:
4692
diff
changeset
|
3886 (int)nfa_endp->se_u.pos.lnum, |
4682
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3887 (int)(reginput - regline), |
4694
efc4fb311d5d
updated for version 7.3.1094
Bram Moolenaar <bram@vim.org>
parents:
4692
diff
changeset
|
3888 nfa_endp->se_u.pos.col); |
4682
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3889 else |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3890 fprintf(log_fd, "Current col: %d, endp col: %d\n", |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3891 (int)(reginput - regline), |
4694
efc4fb311d5d
updated for version 7.3.1094
Bram Moolenaar <bram@vim.org>
parents:
4692
diff
changeset
|
3892 (int)(nfa_endp->se_u.ptr - reginput)); |
4682
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3893 } |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3894 #endif |
4694
efc4fb311d5d
updated for version 7.3.1094
Bram Moolenaar <bram@vim.org>
parents:
4692
diff
changeset
|
3895 /* It's only a match if it ends at "nfa_endp" */ |
efc4fb311d5d
updated for version 7.3.1094
Bram Moolenaar <bram@vim.org>
parents:
4692
diff
changeset
|
3896 if (nfa_endp != NULL && (REG_MULTI |
efc4fb311d5d
updated for version 7.3.1094
Bram Moolenaar <bram@vim.org>
parents:
4692
diff
changeset
|
3897 ? (reglnum != nfa_endp->se_u.pos.lnum |
4682
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3898 || (int)(reginput - regline) |
4694
efc4fb311d5d
updated for version 7.3.1094
Bram Moolenaar <bram@vim.org>
parents:
4692
diff
changeset
|
3899 != nfa_endp->se_u.pos.col) |
efc4fb311d5d
updated for version 7.3.1094
Bram Moolenaar <bram@vim.org>
parents:
4692
diff
changeset
|
3900 : reginput != nfa_endp->se_u.ptr)) |
4682
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3901 break; |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3902 |
4661
0dce3d812e7a
updated for version 7.3.1078
Bram Moolenaar <bram@vim.org>
parents:
4657
diff
changeset
|
3903 /* do not set submatches for \@! */ |
0dce3d812e7a
updated for version 7.3.1078
Bram Moolenaar <bram@vim.org>
parents:
4657
diff
changeset
|
3904 if (!t->state->negated) |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3905 { |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3906 copy_sub(&m->norm, &t->subs.norm); |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3907 #ifdef FEAT_SYN_HL |
4712
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
3908 if (nfa_has_zsubexpr) |
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
3909 copy_sub(&m->synt, &t->subs.synt); |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3910 #endif |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3911 } |
4561
4d81fdda8f35
updated for version 7.3.1028
Bram Moolenaar <bram@vim.org>
parents:
4559
diff
changeset
|
3912 nfa_match = TRUE; |
4444 | 3913 } |
3914 break; | |
3915 | |
3916 case NFA_START_INVISIBLE: | |
4682
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3917 case NFA_START_INVISIBLE_BEFORE: |
4669
2d15582e132f
updated for version 7.3.1082
Bram Moolenaar <bram@vim.org>
parents:
4667
diff
changeset
|
3918 { |
4682
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3919 char_u *save_reginput = reginput; |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3920 char_u *save_regline = regline; |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3921 int save_reglnum = reglnum; |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3922 int save_nfa_match = nfa_match; |
4694
efc4fb311d5d
updated for version 7.3.1094
Bram Moolenaar <bram@vim.org>
parents:
4692
diff
changeset
|
3923 save_se_T *save_nfa_endp = nfa_endp; |
4682
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3924 save_se_T endpos; |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3925 save_se_T *endposp = NULL; |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3926 |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3927 if (t->state->c == NFA_START_INVISIBLE_BEFORE) |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3928 { |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3929 /* The recursive match must end at the current position. */ |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3930 endposp = &endpos; |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3931 if (REG_MULTI) |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3932 { |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3933 endpos.se_u.pos.col = (int)(reginput - regline); |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3934 endpos.se_u.pos.lnum = reglnum; |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3935 } |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3936 else |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3937 endpos.se_u.ptr = reginput; |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3938 |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3939 /* Go back the specified number of bytes, or as far as the |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3940 * start of the previous line, to try matching "\@<=" or |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3941 * not matching "\@<!". |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3942 * TODO: This is very inefficient! Would be better to |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3943 * first check for a match with what follows. */ |
4682
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3944 if (t->state->val <= 0) |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3945 { |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3946 if (REG_MULTI) |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3947 { |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3948 regline = reg_getline(--reglnum); |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3949 if (regline == NULL) |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3950 /* can't go before the first line */ |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3951 regline = reg_getline(++reglnum); |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3952 } |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3953 reginput = regline; |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3954 } |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3955 else |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3956 { |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3957 if (REG_MULTI |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3958 && (int)(reginput - regline) < t->state->val) |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3959 { |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3960 /* Not enough bytes in this line, go to end of |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3961 * previous line. */ |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3962 regline = reg_getline(--reglnum); |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3963 if (regline == NULL) |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3964 { |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3965 /* can't go before the first line */ |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3966 regline = reg_getline(++reglnum); |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3967 reginput = regline; |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3968 } |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3969 else |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3970 reginput = regline + STRLEN(regline); |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3971 } |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3972 if ((int)(reginput - regline) >= t->state->val) |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3973 { |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3974 reginput -= t->state->val; |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3975 #ifdef FEAT_MBYTE |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3976 if (has_mbyte) |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3977 reginput -= mb_head_off(regline, reginput); |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3978 #endif |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3979 } |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3980 else |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3981 reginput = regline; |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3982 } |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3983 } |
4669
2d15582e132f
updated for version 7.3.1082
Bram Moolenaar <bram@vim.org>
parents:
4667
diff
changeset
|
3984 |
2d15582e132f
updated for version 7.3.1082
Bram Moolenaar <bram@vim.org>
parents:
4667
diff
changeset
|
3985 /* Call nfa_regmatch() to check if the current concat matches |
2d15582e132f
updated for version 7.3.1082
Bram Moolenaar <bram@vim.org>
parents:
4667
diff
changeset
|
3986 * at this position. The concat ends with the node |
2d15582e132f
updated for version 7.3.1082
Bram Moolenaar <bram@vim.org>
parents:
4667
diff
changeset
|
3987 * NFA_END_INVISIBLE */ |
4444 | 3988 if (listids == NULL) |
3989 { | |
4669
2d15582e132f
updated for version 7.3.1082
Bram Moolenaar <bram@vim.org>
parents:
4667
diff
changeset
|
3990 listids = (int *)lalloc(sizeof(int) * nstate, TRUE); |
4444 | 3991 if (listids == NULL) |
3992 { | |
3993 EMSG(_("E878: (NFA) Could not allocate memory for branch traversal!")); | |
3994 return 0; | |
3995 } | |
3996 } | |
3997 #ifdef ENABLE_LOG | |
3998 if (log_fd != stderr) | |
3999 fclose(log_fd); | |
4000 log_fd = NULL; | |
4001 #endif | |
4002 /* Have to clear the listid field of the NFA nodes, so that | |
4003 * nfa_regmatch() and addstate() can run properly after | |
4004 * recursion. */ | |
4712
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
4005 nfa_save_listids(prog, listids); |
4694
efc4fb311d5d
updated for version 7.3.1094
Bram Moolenaar <bram@vim.org>
parents:
4692
diff
changeset
|
4006 nfa_endp = endposp; |
4712
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
4007 result = nfa_regmatch(prog, t->state->out, submatch, m); |
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
4008 nfa_restore_listids(prog, listids); |
4669
2d15582e132f
updated for version 7.3.1082
Bram Moolenaar <bram@vim.org>
parents:
4667
diff
changeset
|
4009 |
2d15582e132f
updated for version 7.3.1082
Bram Moolenaar <bram@vim.org>
parents:
4667
diff
changeset
|
4010 /* restore position in input text */ |
2d15582e132f
updated for version 7.3.1082
Bram Moolenaar <bram@vim.org>
parents:
4667
diff
changeset
|
4011 reginput = save_reginput; |
2d15582e132f
updated for version 7.3.1082
Bram Moolenaar <bram@vim.org>
parents:
4667
diff
changeset
|
4012 regline = save_regline; |
2d15582e132f
updated for version 7.3.1082
Bram Moolenaar <bram@vim.org>
parents:
4667
diff
changeset
|
4013 reglnum = save_reglnum; |
2d15582e132f
updated for version 7.3.1082
Bram Moolenaar <bram@vim.org>
parents:
4667
diff
changeset
|
4014 nfa_match = save_nfa_match; |
4694
efc4fb311d5d
updated for version 7.3.1094
Bram Moolenaar <bram@vim.org>
parents:
4692
diff
changeset
|
4015 nfa_endp = save_nfa_endp; |
4444 | 4016 |
4017 #ifdef ENABLE_LOG | |
4531
1be43c095aff
updated for version 7.3.1013
Bram Moolenaar <bram@vim.org>
parents:
4529
diff
changeset
|
4018 log_fd = fopen(NFA_REGEXP_RUN_LOG, "a"); |
4444 | 4019 if (log_fd != NULL) |
4020 { | |
4021 fprintf(log_fd, "****************************\n"); | |
4022 fprintf(log_fd, "FINISHED RUNNING nfa_regmatch() recursively\n"); | |
4023 fprintf(log_fd, "MATCH = %s\n", result == TRUE ? "OK" : "FALSE"); | |
4024 fprintf(log_fd, "****************************\n"); | |
4025 } | |
4026 else | |
4027 { | |
4028 EMSG(_("Could not open temporary log file for writing, displaying on stderr ... ")); | |
4029 log_fd = stderr; | |
4030 } | |
4031 #endif | |
4661
0dce3d812e7a
updated for version 7.3.1078
Bram Moolenaar <bram@vim.org>
parents:
4657
diff
changeset
|
4032 /* for \@! it is a match when result is FALSE */ |
0dce3d812e7a
updated for version 7.3.1078
Bram Moolenaar <bram@vim.org>
parents:
4657
diff
changeset
|
4033 if (result != t->state->negated) |
4444 | 4034 { |
4035 /* Copy submatch info from the recursive call */ | |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4036 copy_sub_off(&t->subs.norm, &m->norm); |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4037 #ifdef FEAT_SYN_HL |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4038 copy_sub_off(&t->subs.synt, &m->synt); |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4039 #endif |
4657
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
4040 |
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
4041 /* t->state->out1 is the corresponding END_INVISIBLE node; |
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
4042 * Add it to the current list (zero-width match). */ |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4043 addstate_here(thislist, t->state->out1->out, &t->subs, |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4044 &listidx); |
4444 | 4045 } |
4046 break; | |
4669
2d15582e132f
updated for version 7.3.1082
Bram Moolenaar <bram@vim.org>
parents:
4667
diff
changeset
|
4047 } |
4444 | 4048 |
4049 case NFA_BOL: | |
4050 if (reginput == regline) | |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4051 addstate_here(thislist, t->state->out, &t->subs, &listidx); |
4444 | 4052 break; |
4053 | |
4054 case NFA_EOL: | |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4055 if (curc == NUL) |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4056 addstate_here(thislist, t->state->out, &t->subs, &listidx); |
4444 | 4057 break; |
4058 | |
4059 case NFA_BOW: | |
4060 { | |
4061 int bow = TRUE; | |
4062 | |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4063 if (curc == NUL) |
4444 | 4064 bow = FALSE; |
4065 #ifdef FEAT_MBYTE | |
4066 else if (has_mbyte) | |
4067 { | |
4068 int this_class; | |
4069 | |
4070 /* Get class of current and previous char (if it exists). */ | |
4503 | 4071 this_class = mb_get_class_buf(reginput, reg_buf); |
4444 | 4072 if (this_class <= 1) |
4073 bow = FALSE; | |
4074 else if (reg_prev_class() == this_class) | |
4075 bow = FALSE; | |
4076 } | |
4077 #endif | |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4078 else if (!vim_iswordc_buf(curc, reg_buf) |
4503 | 4079 || (reginput > regline |
4080 && vim_iswordc_buf(reginput[-1], reg_buf))) | |
4444 | 4081 bow = FALSE; |
4082 if (bow) | |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4083 addstate_here(thislist, t->state->out, &t->subs, &listidx); |
4444 | 4084 break; |
4085 } | |
4086 | |
4087 case NFA_EOW: | |
4088 { | |
4089 int eow = TRUE; | |
4090 | |
4091 if (reginput == regline) | |
4092 eow = FALSE; | |
4093 #ifdef FEAT_MBYTE | |
4094 else if (has_mbyte) | |
4095 { | |
4096 int this_class, prev_class; | |
4097 | |
4098 /* Get class of current and previous char (if it exists). */ | |
4503 | 4099 this_class = mb_get_class_buf(reginput, reg_buf); |
4444 | 4100 prev_class = reg_prev_class(); |
4101 if (this_class == prev_class | |
4102 || prev_class == 0 || prev_class == 1) | |
4103 eow = FALSE; | |
4104 } | |
4105 #endif | |
4503 | 4106 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
|
4107 || (reginput[0] != NUL |
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4108 && vim_iswordc_buf(curc, reg_buf))) |
4444 | 4109 eow = FALSE; |
4110 if (eow) | |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4111 addstate_here(thislist, t->state->out, &t->subs, &listidx); |
4444 | 4112 break; |
4113 } | |
4114 | |
4671
b3c59716e700
updated for version 7.3.1083
Bram Moolenaar <bram@vim.org>
parents:
4669
diff
changeset
|
4115 case NFA_BOF: |
b3c59716e700
updated for version 7.3.1083
Bram Moolenaar <bram@vim.org>
parents:
4669
diff
changeset
|
4116 if (reglnum == 0 && reginput == regline |
b3c59716e700
updated for version 7.3.1083
Bram Moolenaar <bram@vim.org>
parents:
4669
diff
changeset
|
4117 && (!REG_MULTI || reg_firstlnum == 1)) |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4118 addstate_here(thislist, t->state->out, &t->subs, &listidx); |
4671
b3c59716e700
updated for version 7.3.1083
Bram Moolenaar <bram@vim.org>
parents:
4669
diff
changeset
|
4119 break; |
b3c59716e700
updated for version 7.3.1083
Bram Moolenaar <bram@vim.org>
parents:
4669
diff
changeset
|
4120 |
b3c59716e700
updated for version 7.3.1083
Bram Moolenaar <bram@vim.org>
parents:
4669
diff
changeset
|
4121 case NFA_EOF: |
b3c59716e700
updated for version 7.3.1083
Bram Moolenaar <bram@vim.org>
parents:
4669
diff
changeset
|
4122 if (reglnum == reg_maxline && curc == NUL) |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4123 addstate_here(thislist, t->state->out, &t->subs, &listidx); |
4671
b3c59716e700
updated for version 7.3.1083
Bram Moolenaar <bram@vim.org>
parents:
4669
diff
changeset
|
4124 break; |
b3c59716e700
updated for version 7.3.1083
Bram Moolenaar <bram@vim.org>
parents:
4669
diff
changeset
|
4125 |
4527
55bcaa1d2749
updated for version 7.3.1011
Bram Moolenaar <bram@vim.org>
parents:
4525
diff
changeset
|
4126 #ifdef FEAT_MBYTE |
4444 | 4127 case NFA_COMPOSING: |
4527
55bcaa1d2749
updated for version 7.3.1011
Bram Moolenaar <bram@vim.org>
parents:
4525
diff
changeset
|
4128 { |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4129 int mc = curc; |
4531
1be43c095aff
updated for version 7.3.1013
Bram Moolenaar <bram@vim.org>
parents:
4529
diff
changeset
|
4130 int len = 0; |
1be43c095aff
updated for version 7.3.1013
Bram Moolenaar <bram@vim.org>
parents:
4529
diff
changeset
|
4131 nfa_state_T *end; |
1be43c095aff
updated for version 7.3.1013
Bram Moolenaar <bram@vim.org>
parents:
4529
diff
changeset
|
4132 nfa_state_T *sta; |
4547
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4133 int cchars[MAX_MCO]; |
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4134 int ccount = 0; |
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4135 int j; |
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4136 |
4444 | 4137 sta = t->state->out; |
4527
55bcaa1d2749
updated for version 7.3.1011
Bram Moolenaar <bram@vim.org>
parents:
4525
diff
changeset
|
4138 len = 0; |
4535
45f97c349537
updated for version 7.3.1015
Bram Moolenaar <bram@vim.org>
parents:
4533
diff
changeset
|
4139 if (utf_iscomposing(sta->c)) |
45f97c349537
updated for version 7.3.1015
Bram Moolenaar <bram@vim.org>
parents:
4533
diff
changeset
|
4140 { |
45f97c349537
updated for version 7.3.1015
Bram Moolenaar <bram@vim.org>
parents:
4533
diff
changeset
|
4141 /* Only match composing character(s), ignore base |
45f97c349537
updated for version 7.3.1015
Bram Moolenaar <bram@vim.org>
parents:
4533
diff
changeset
|
4142 * character. Used for ".{composing}" and "{composing}" |
45f97c349537
updated for version 7.3.1015
Bram Moolenaar <bram@vim.org>
parents:
4533
diff
changeset
|
4143 * (no preceding character). */ |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4144 len += mb_char2len(mc); |
4535
45f97c349537
updated for version 7.3.1015
Bram Moolenaar <bram@vim.org>
parents:
4533
diff
changeset
|
4145 } |
4551
f0c37f5cf4ea
updated for version 7.3.1023
Bram Moolenaar <bram@vim.org>
parents:
4549
diff
changeset
|
4146 if (ireg_icombine && len == 0) |
4444 | 4147 { |
4535
45f97c349537
updated for version 7.3.1015
Bram Moolenaar <bram@vim.org>
parents:
4533
diff
changeset
|
4148 /* If \Z was present, then ignore composing characters. |
45f97c349537
updated for version 7.3.1015
Bram Moolenaar <bram@vim.org>
parents:
4533
diff
changeset
|
4149 * 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
|
4150 /* TODO: How about negated? */ |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4151 if (len == 0 && sta->c != curc) |
4529
432a6b8c7d93
updated for version 7.3.1012
Bram Moolenaar <bram@vim.org>
parents:
4527
diff
changeset
|
4152 result = FAIL; |
4547
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4153 else |
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4154 result = OK; |
4529
432a6b8c7d93
updated for version 7.3.1012
Bram Moolenaar <bram@vim.org>
parents:
4527
diff
changeset
|
4155 while (sta->c != NFA_END_COMPOSING) |
432a6b8c7d93
updated for version 7.3.1012
Bram Moolenaar <bram@vim.org>
parents:
4527
diff
changeset
|
4156 sta = sta->out; |
4444 | 4157 } |
4547
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4158 |
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4159 /* Check base character matches first, unless ignored. */ |
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4160 else if (len > 0 || mc == sta->c) |
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4161 { |
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4162 if (len == 0) |
4529
432a6b8c7d93
updated for version 7.3.1012
Bram Moolenaar <bram@vim.org>
parents:
4527
diff
changeset
|
4163 { |
432a6b8c7d93
updated for version 7.3.1012
Bram Moolenaar <bram@vim.org>
parents:
4527
diff
changeset
|
4164 len += mb_char2len(mc); |
432a6b8c7d93
updated for version 7.3.1012
Bram Moolenaar <bram@vim.org>
parents:
4527
diff
changeset
|
4165 sta = sta->out; |
432a6b8c7d93
updated for version 7.3.1012
Bram Moolenaar <bram@vim.org>
parents:
4527
diff
changeset
|
4166 } |
4444 | 4167 |
4547
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4168 /* 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
|
4169 * Get them into cchars[] first. */ |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4170 while (len < clen) |
4547
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4171 { |
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4172 mc = mb_ptr2char(reginput + len); |
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4173 cchars[ccount++] = mc; |
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4174 len += mb_char2len(mc); |
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4175 if (ccount == MAX_MCO) |
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4176 break; |
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4177 } |
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4178 |
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4179 /* 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
|
4180 * 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
|
4181 * composing chars are matched. */ |
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4182 result = OK; |
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4183 while (sta->c != NFA_END_COMPOSING) |
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4184 { |
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4185 for (j = 0; j < ccount; ++j) |
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4186 if (cchars[j] == sta->c) |
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4187 break; |
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4188 if (j == ccount) |
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4189 { |
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4190 result = FAIL; |
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4191 break; |
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4192 } |
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4193 sta = sta->out; |
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4194 } |
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4195 } |
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4196 else |
4525
36ddcf4cecbc
updated for version 7.3.1010
Bram Moolenaar <bram@vim.org>
parents:
4517
diff
changeset
|
4197 result = FAIL; |
4547
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4198 |
4527
55bcaa1d2749
updated for version 7.3.1011
Bram Moolenaar <bram@vim.org>
parents:
4525
diff
changeset
|
4199 end = t->state->out1; /* NFA_END_COMPOSING */ |
4444 | 4200 ADD_POS_NEG_STATE(end); |
4201 break; | |
4527
55bcaa1d2749
updated for version 7.3.1011
Bram Moolenaar <bram@vim.org>
parents:
4525
diff
changeset
|
4202 } |
55bcaa1d2749
updated for version 7.3.1011
Bram Moolenaar <bram@vim.org>
parents:
4525
diff
changeset
|
4203 #endif |
4444 | 4204 |
4205 case NFA_NEWL: | |
4555
b2946c06d1b6
updated for version 7.3.1025
Bram Moolenaar <bram@vim.org>
parents:
4553
diff
changeset
|
4206 if (curc == NUL && !reg_line_lbr && REG_MULTI |
b2946c06d1b6
updated for version 7.3.1025
Bram Moolenaar <bram@vim.org>
parents:
4553
diff
changeset
|
4207 && reglnum <= reg_maxline) |
4444 | 4208 { |
4515
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
4209 go_to_nextline = TRUE; |
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
4210 /* 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
|
4211 * at the start of the next line. */ |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4212 addstate(nextlist, t->state->out, &t->subs, -1); |
4444 | 4213 } |
4555
b2946c06d1b6
updated for version 7.3.1025
Bram Moolenaar <bram@vim.org>
parents:
4553
diff
changeset
|
4214 else if (curc == '\n' && reg_line_lbr) |
b2946c06d1b6
updated for version 7.3.1025
Bram Moolenaar <bram@vim.org>
parents:
4553
diff
changeset
|
4215 { |
b2946c06d1b6
updated for version 7.3.1025
Bram Moolenaar <bram@vim.org>
parents:
4553
diff
changeset
|
4216 /* match \n as if it is an ordinary character */ |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4217 addstate(nextlist, t->state->out, &t->subs, 1); |
4555
b2946c06d1b6
updated for version 7.3.1025
Bram Moolenaar <bram@vim.org>
parents:
4553
diff
changeset
|
4218 } |
4444 | 4219 break; |
4220 | |
4221 case NFA_CLASS_ALNUM: | |
4222 case NFA_CLASS_ALPHA: | |
4223 case NFA_CLASS_BLANK: | |
4224 case NFA_CLASS_CNTRL: | |
4225 case NFA_CLASS_DIGIT: | |
4226 case NFA_CLASS_GRAPH: | |
4227 case NFA_CLASS_LOWER: | |
4228 case NFA_CLASS_PRINT: | |
4229 case NFA_CLASS_PUNCT: | |
4230 case NFA_CLASS_SPACE: | |
4231 case NFA_CLASS_UPPER: | |
4232 case NFA_CLASS_XDIGIT: | |
4233 case NFA_CLASS_TAB: | |
4234 case NFA_CLASS_RETURN: | |
4235 case NFA_CLASS_BACKSPACE: | |
4236 case NFA_CLASS_ESCAPE: | |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4237 result = check_char_class(t->state->c, curc); |
4444 | 4238 ADD_POS_NEG_STATE(t->state); |
4239 break; | |
4240 | |
4241 case NFA_END_NEG_RANGE: | |
4242 /* This follows a series of negated nodes, like: | |
4243 * 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
|
4244 if (curc > 0) |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4245 addstate(nextlist, t->state->out, &t->subs, clen); |
4444 | 4246 break; |
4247 | |
4248 case NFA_ANY: | |
4515
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
4249 /* 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
|
4250 if (curc > 0) |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4251 addstate(nextlist, t->state->out, &t->subs, clen); |
4444 | 4252 break; |
4253 | |
4254 /* | |
4255 * Character classes like \a for alpha, \d for digit etc. | |
4256 */ | |
4257 case NFA_IDENT: /* \i */ | |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4258 result = vim_isIDc(curc); |
4444 | 4259 ADD_POS_NEG_STATE(t->state); |
4260 break; | |
4261 | |
4262 case NFA_SIDENT: /* \I */ | |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4263 result = !VIM_ISDIGIT(curc) && vim_isIDc(curc); |
4444 | 4264 ADD_POS_NEG_STATE(t->state); |
4265 break; | |
4266 | |
4267 case NFA_KWORD: /* \k */ | |
4503 | 4268 result = vim_iswordp_buf(reginput, reg_buf); |
4444 | 4269 ADD_POS_NEG_STATE(t->state); |
4270 break; | |
4271 | |
4272 case NFA_SKWORD: /* \K */ | |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4273 result = !VIM_ISDIGIT(curc) |
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4274 && vim_iswordp_buf(reginput, reg_buf); |
4444 | 4275 ADD_POS_NEG_STATE(t->state); |
4276 break; | |
4277 | |
4278 case NFA_FNAME: /* \f */ | |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4279 result = vim_isfilec(curc); |
4444 | 4280 ADD_POS_NEG_STATE(t->state); |
4281 break; | |
4282 | |
4283 case NFA_SFNAME: /* \F */ | |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4284 result = !VIM_ISDIGIT(curc) && vim_isfilec(curc); |
4444 | 4285 ADD_POS_NEG_STATE(t->state); |
4286 break; | |
4287 | |
4288 case NFA_PRINT: /* \p */ | |
4470 | 4289 result = ptr2cells(reginput) == 1; |
4444 | 4290 ADD_POS_NEG_STATE(t->state); |
4291 break; | |
4292 | |
4293 case NFA_SPRINT: /* \P */ | |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4294 result = !VIM_ISDIGIT(curc) && ptr2cells(reginput) == 1; |
4444 | 4295 ADD_POS_NEG_STATE(t->state); |
4296 break; | |
4297 | |
4298 case NFA_WHITE: /* \s */ | |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4299 result = vim_iswhite(curc); |
4444 | 4300 ADD_POS_NEG_STATE(t->state); |
4301 break; | |
4302 | |
4303 case NFA_NWHITE: /* \S */ | |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4304 result = curc != NUL && !vim_iswhite(curc); |
4444 | 4305 ADD_POS_NEG_STATE(t->state); |
4306 break; | |
4307 | |
4308 case NFA_DIGIT: /* \d */ | |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4309 result = ri_digit(curc); |
4444 | 4310 ADD_POS_NEG_STATE(t->state); |
4311 break; | |
4312 | |
4313 case NFA_NDIGIT: /* \D */ | |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4314 result = curc != NUL && !ri_digit(curc); |
4444 | 4315 ADD_POS_NEG_STATE(t->state); |
4316 break; | |
4317 | |
4318 case NFA_HEX: /* \x */ | |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4319 result = ri_hex(curc); |
4444 | 4320 ADD_POS_NEG_STATE(t->state); |
4321 break; | |
4322 | |
4323 case NFA_NHEX: /* \X */ | |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4324 result = curc != NUL && !ri_hex(curc); |
4444 | 4325 ADD_POS_NEG_STATE(t->state); |
4326 break; | |
4327 | |
4328 case NFA_OCTAL: /* \o */ | |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4329 result = ri_octal(curc); |
4444 | 4330 ADD_POS_NEG_STATE(t->state); |
4331 break; | |
4332 | |
4333 case NFA_NOCTAL: /* \O */ | |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4334 result = curc != NUL && !ri_octal(curc); |
4444 | 4335 ADD_POS_NEG_STATE(t->state); |
4336 break; | |
4337 | |
4338 case NFA_WORD: /* \w */ | |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4339 result = ri_word(curc); |
4444 | 4340 ADD_POS_NEG_STATE(t->state); |
4341 break; | |
4342 | |
4343 case NFA_NWORD: /* \W */ | |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4344 result = curc != NUL && !ri_word(curc); |
4444 | 4345 ADD_POS_NEG_STATE(t->state); |
4346 break; | |
4347 | |
4348 case NFA_HEAD: /* \h */ | |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4349 result = ri_head(curc); |
4444 | 4350 ADD_POS_NEG_STATE(t->state); |
4351 break; | |
4352 | |
4353 case NFA_NHEAD: /* \H */ | |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4354 result = curc != NUL && !ri_head(curc); |
4444 | 4355 ADD_POS_NEG_STATE(t->state); |
4356 break; | |
4357 | |
4358 case NFA_ALPHA: /* \a */ | |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4359 result = ri_alpha(curc); |
4444 | 4360 ADD_POS_NEG_STATE(t->state); |
4361 break; | |
4362 | |
4363 case NFA_NALPHA: /* \A */ | |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4364 result = curc != NUL && !ri_alpha(curc); |
4444 | 4365 ADD_POS_NEG_STATE(t->state); |
4366 break; | |
4367 | |
4368 case NFA_LOWER: /* \l */ | |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4369 result = ri_lower(curc); |
4444 | 4370 ADD_POS_NEG_STATE(t->state); |
4371 break; | |
4372 | |
4373 case NFA_NLOWER: /* \L */ | |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4374 result = curc != NUL && !ri_lower(curc); |
4444 | 4375 ADD_POS_NEG_STATE(t->state); |
4376 break; | |
4377 | |
4378 case NFA_UPPER: /* \u */ | |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4379 result = ri_upper(curc); |
4444 | 4380 ADD_POS_NEG_STATE(t->state); |
4381 break; | |
4382 | |
4383 case NFA_NUPPER: /* \U */ | |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4384 result = curc != NUL && !ri_upper(curc); |
4444 | 4385 ADD_POS_NEG_STATE(t->state); |
4386 break; | |
4387 | |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4388 case NFA_BACKREF1: |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4389 case NFA_BACKREF2: |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4390 case NFA_BACKREF3: |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4391 case NFA_BACKREF4: |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4392 case NFA_BACKREF5: |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4393 case NFA_BACKREF6: |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4394 case NFA_BACKREF7: |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4395 case NFA_BACKREF8: |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4396 case NFA_BACKREF9: |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4397 #ifdef FEAT_SYN_HL |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4398 case NFA_ZREF1: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4399 case NFA_ZREF2: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4400 case NFA_ZREF3: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4401 case NFA_ZREF4: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4402 case NFA_ZREF5: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4403 case NFA_ZREF6: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4404 case NFA_ZREF7: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4405 case NFA_ZREF8: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4406 case NFA_ZREF9: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4407 #endif |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4408 /* \1 .. \9 \z1 .. \z9 */ |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4409 { |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4410 int subidx; |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4411 int bytelen; |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4412 |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4413 if (t->state->c <= NFA_BACKREF9) |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4414 { |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4415 subidx = t->state->c - NFA_BACKREF1 + 1; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4416 result = match_backref(&t->subs.norm, subidx, &bytelen); |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4417 } |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4418 #ifdef FEAT_SYN_HL |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4419 else |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4420 { |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4421 subidx = t->state->c - NFA_ZREF1 + 1; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4422 result = match_zref(subidx, &bytelen); |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4423 } |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4424 #endif |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4425 |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4426 if (result) |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4427 { |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4428 if (bytelen == 0) |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4429 { |
4692
08fbb1ce1bc5
updated for version 7.3.1093
Bram Moolenaar <bram@vim.org>
parents:
4690
diff
changeset
|
4430 /* 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
|
4431 * used next */ |
08fbb1ce1bc5
updated for version 7.3.1093
Bram Moolenaar <bram@vim.org>
parents:
4690
diff
changeset
|
4432 addstate_here(thislist, t->state->out->out, &t->subs, |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4433 &listidx); |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4434 } |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4435 else if (bytelen <= clen) |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4436 { |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4437 /* match current character, jump ahead to out of |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4438 * NFA_SKIP */ |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4439 addstate(nextlist, t->state->out->out, &t->subs, clen); |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4440 #ifdef ENABLE_LOG |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4441 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
|
4442 #endif |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4443 } |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4444 else |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4445 { |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4446 /* skip ofer the matched characters, set character |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4447 * count in NFA_SKIP */ |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4448 addstate(nextlist, t->state->out, &t->subs, bytelen); |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4449 nextlist->t[nextlist->n - 1].count = bytelen - clen; |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4450 #ifdef ENABLE_LOG |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4451 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
|
4452 #endif |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4453 } |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4454 |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4455 } |
4482 | 4456 break; |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4457 } |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4458 case NFA_SKIP: |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4459 /* charater of previous matching \1 .. \9 */ |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4460 if (t->count - clen <= 0) |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4461 { |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4462 /* end of match, go to what follows */ |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4463 addstate(nextlist, t->state->out, &t->subs, clen); |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4464 #ifdef ENABLE_LOG |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4465 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
|
4466 #endif |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4467 } |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4468 else |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4469 { |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4470 /* add state again with decremented count */ |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4471 addstate(nextlist, t->state, &t->subs, 0); |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4472 nextlist->t[nextlist->n - 1].count = t->count - clen; |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4473 #ifdef ENABLE_LOG |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4474 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
|
4475 #endif |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4476 } |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4477 break; |
4482 | 4478 |
4479 case NFA_SKIP_CHAR: | |
4480 case NFA_ZSTART: | |
4569
f262fb02889d
updated for version 7.3.1032
Bram Moolenaar <bram@vim.org>
parents:
4567
diff
changeset
|
4481 case NFA_ZEND: |
4482 | 4482 /* TODO: should not happen? */ |
4483 break; | |
4484 | |
4583
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4485 case NFA_LNUM: |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4486 case NFA_LNUM_GT: |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4487 case NFA_LNUM_LT: |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4488 result = (REG_MULTI && |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4489 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
|
4490 (long_u)(reglnum + reg_firstlnum))); |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4491 if (result) |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4492 addstate_here(thislist, t->state->out, &t->subs, &listidx); |
4583
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4493 break; |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4494 |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4495 case NFA_COL: |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4496 case NFA_COL_GT: |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4497 case NFA_COL_LT: |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4498 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
|
4499 (long_u)(reginput - regline) + 1); |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4500 if (result) |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4501 addstate_here(thislist, t->state->out, &t->subs, &listidx); |
4583
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4502 break; |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4503 |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4504 case NFA_VCOL: |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4505 case NFA_VCOL_GT: |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4506 case NFA_VCOL_LT: |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4507 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
|
4508 (long_u)win_linetabsize( |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4509 reg_win == NULL ? curwin : reg_win, |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4510 regline, (colnr_T)(reginput - regline)) + 1); |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4511 if (result) |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4512 addstate_here(thislist, t->state->out, &t->subs, &listidx); |
4583
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4513 break; |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4514 |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4515 case NFA_CURSOR: |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4516 result = (reg_win != NULL |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4517 && (reglnum + reg_firstlnum == reg_win->w_cursor.lnum) |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4518 && ((colnr_T)(reginput - regline) |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4519 == reg_win->w_cursor.col)); |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4520 if (result) |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4521 addstate_here(thislist, t->state->out, &t->subs, &listidx); |
4583
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4522 break; |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4523 |
4444 | 4524 default: /* regular character */ |
4559
04086e297563
updated for version 7.3.1027
Bram Moolenaar <bram@vim.org>
parents:
4557
diff
changeset
|
4525 { |
04086e297563
updated for version 7.3.1027
Bram Moolenaar <bram@vim.org>
parents:
4557
diff
changeset
|
4526 int c = t->state->c; |
04086e297563
updated for version 7.3.1027
Bram Moolenaar <bram@vim.org>
parents:
4557
diff
changeset
|
4527 |
4482 | 4528 /* TODO: put this in #ifdef later */ |
4559
04086e297563
updated for version 7.3.1027
Bram Moolenaar <bram@vim.org>
parents:
4557
diff
changeset
|
4529 if (c < -256) |
04086e297563
updated for version 7.3.1027
Bram Moolenaar <bram@vim.org>
parents:
4557
diff
changeset
|
4530 EMSGN("INTERNAL: Negative state char: %ld", c); |
04086e297563
updated for version 7.3.1027
Bram Moolenaar <bram@vim.org>
parents:
4557
diff
changeset
|
4531 if (is_Magic(c)) |
04086e297563
updated for version 7.3.1027
Bram Moolenaar <bram@vim.org>
parents:
4557
diff
changeset
|
4532 c = un_Magic(c); |
04086e297563
updated for version 7.3.1027
Bram Moolenaar <bram@vim.org>
parents:
4557
diff
changeset
|
4533 result = (c == curc); |
04086e297563
updated for version 7.3.1027
Bram Moolenaar <bram@vim.org>
parents:
4557
diff
changeset
|
4534 |
04086e297563
updated for version 7.3.1027
Bram Moolenaar <bram@vim.org>
parents:
4557
diff
changeset
|
4535 if (!result && ireg_ic) |
04086e297563
updated for version 7.3.1027
Bram Moolenaar <bram@vim.org>
parents:
4557
diff
changeset
|
4536 result = MB_TOLOWER(c) == MB_TOLOWER(curc); |
4527
55bcaa1d2749
updated for version 7.3.1011
Bram Moolenaar <bram@vim.org>
parents:
4525
diff
changeset
|
4537 #ifdef FEAT_MBYTE |
55bcaa1d2749
updated for version 7.3.1011
Bram Moolenaar <bram@vim.org>
parents:
4525
diff
changeset
|
4538 /* 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
|
4539 * 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
|
4540 * character uses NFA_COMPOSING above. */ |
55bcaa1d2749
updated for version 7.3.1011
Bram Moolenaar <bram@vim.org>
parents:
4525
diff
changeset
|
4541 if (result && enc_utf8 && !ireg_icombine |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4542 && clen != utf_char2len(curc)) |
4527
55bcaa1d2749
updated for version 7.3.1011
Bram Moolenaar <bram@vim.org>
parents:
4525
diff
changeset
|
4543 result = FALSE; |
55bcaa1d2749
updated for version 7.3.1011
Bram Moolenaar <bram@vim.org>
parents:
4525
diff
changeset
|
4544 #endif |
4444 | 4545 ADD_POS_NEG_STATE(t->state); |
4546 break; | |
4559
04086e297563
updated for version 7.3.1027
Bram Moolenaar <bram@vim.org>
parents:
4557
diff
changeset
|
4547 } |
4444 | 4548 } |
4549 | |
4550 } /* for (thislist = thislist; thislist->state; thislist++) */ | |
4551 | |
4557
888c12c899e5
updated for version 7.3.1026
Bram Moolenaar <bram@vim.org>
parents:
4555
diff
changeset
|
4552 /* 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
|
4553 * start state to the list of states. |
888c12c899e5
updated for version 7.3.1026
Bram Moolenaar <bram@vim.org>
parents:
4555
diff
changeset
|
4554 * 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
|
4555 * matters! |
888c12c899e5
updated for version 7.3.1026
Bram Moolenaar <bram@vim.org>
parents:
4555
diff
changeset
|
4556 * 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
|
4557 * 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
|
4558 * 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
|
4559 * 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
|
4560 if (nfa_match == FALSE |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4561 && ((start->c == NFA_MOPEN |
4682
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
4562 && reglnum == 0 |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
4563 && clen != 0 |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
4564 && (ireg_maxcol == 0 |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
4565 || (colnr_T)(reginput - regline) < ireg_maxcol)) |
4694
efc4fb311d5d
updated for version 7.3.1094
Bram Moolenaar <bram@vim.org>
parents:
4692
diff
changeset
|
4566 || (nfa_endp != NULL |
4682
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
4567 && (REG_MULTI |
4694
efc4fb311d5d
updated for version 7.3.1094
Bram Moolenaar <bram@vim.org>
parents:
4692
diff
changeset
|
4568 ? (reglnum < nfa_endp->se_u.pos.lnum |
efc4fb311d5d
updated for version 7.3.1094
Bram Moolenaar <bram@vim.org>
parents:
4692
diff
changeset
|
4569 || (reglnum == nfa_endp->se_u.pos.lnum |
4682
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
4570 && (int)(reginput - regline) |
4694
efc4fb311d5d
updated for version 7.3.1094
Bram Moolenaar <bram@vim.org>
parents:
4692
diff
changeset
|
4571 < nfa_endp->se_u.pos.col)) |
efc4fb311d5d
updated for version 7.3.1094
Bram Moolenaar <bram@vim.org>
parents:
4692
diff
changeset
|
4572 : reginput < nfa_endp->se_u.ptr)))) |
4444 | 4573 { |
4574 #ifdef ENABLE_LOG | |
4575 fprintf(log_fd, "(---) STARTSTATE\n"); | |
4576 #endif | |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4577 addstate(nextlist, start, m, clen); |
4444 | 4578 } |
4579 | |
4580 #ifdef ENABLE_LOG | |
4581 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
|
4582 { |
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4583 int i; |
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4584 |
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4585 for (i = 0; i < thislist->n; i++) |
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4586 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
|
4587 } |
4444 | 4588 fprintf(log_fd, "\n"); |
4589 #endif | |
4590 | |
4591 nextchar: | |
4515
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
4592 /* 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
|
4593 * finish. */ |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4594 if (clen != 0) |
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4595 reginput += clen; |
4694
efc4fb311d5d
updated for version 7.3.1094
Bram Moolenaar <bram@vim.org>
parents:
4692
diff
changeset
|
4596 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
|
4597 && reglnum < nfa_endp->se_u.pos.lnum)) |
4515
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
4598 reg_nextline(); |
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
4599 else |
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
4600 break; |
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
4601 } |
4444 | 4602 |
4603 #ifdef ENABLE_LOG | |
4604 if (log_fd != stderr) | |
4605 fclose(log_fd); | |
4606 log_fd = NULL; | |
4607 #endif | |
4608 | |
4609 theend: | |
4610 /* Free memory */ | |
4611 vim_free(list[0].t); | |
4612 vim_free(list[1].t); | |
4613 vim_free(list[2].t); | |
4561
4d81fdda8f35
updated for version 7.3.1028
Bram Moolenaar <bram@vim.org>
parents:
4559
diff
changeset
|
4614 vim_free(listids); |
4444 | 4615 #undef ADD_POS_NEG_STATE |
4460 | 4616 #ifdef NFA_REGEXP_DEBUG_LOG |
4444 | 4617 fclose(debug); |
4618 #endif | |
4619 | |
4561
4d81fdda8f35
updated for version 7.3.1028
Bram Moolenaar <bram@vim.org>
parents:
4559
diff
changeset
|
4620 return nfa_match; |
4444 | 4621 } |
4622 | |
4623 /* | |
4624 * Try match of "prog" with at regline["col"]. | |
4625 * Returns 0 for failure, number of lines contained in the match otherwise. | |
4626 */ | |
4627 static long | |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4628 nfa_regtry(prog, col) |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4629 nfa_regprog_T *prog; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4630 colnr_T col; |
4444 | 4631 { |
4632 int i; | |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4633 regsubs_T subs, m; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4634 nfa_state_T *start = prog->start; |
4444 | 4635 #ifdef ENABLE_LOG |
4636 FILE *f; | |
4637 #endif | |
4638 | |
4639 reginput = regline + col; | |
4640 need_clear_subexpr = TRUE; | |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4641 #ifdef FEAT_SYN_HL |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4642 /* Clear the external match subpointers if necessary. */ |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4643 if (prog->reghasz == REX_SET) |
4712
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
4644 { |
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
4645 nfa_has_zsubexpr = TRUE; |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4646 need_clear_zsubexpr = TRUE; |
4712
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
4647 } |
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
4648 else |
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
4649 nfa_has_zsubexpr = FALSE; |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4650 #endif |
4444 | 4651 |
4652 #ifdef ENABLE_LOG | |
4531
1be43c095aff
updated for version 7.3.1013
Bram Moolenaar <bram@vim.org>
parents:
4529
diff
changeset
|
4653 f = fopen(NFA_REGEXP_RUN_LOG, "a"); |
4444 | 4654 if (f != NULL) |
4655 { | |
4656 fprintf(f, "\n\n\n\n\n\n\t\t=======================================================\n"); | |
4657 fprintf(f, " =======================================================\n"); | |
4658 #ifdef DEBUG | |
4659 fprintf(f, "\tRegexp is \"%s\"\n", nfa_regengine.expr); | |
4660 #endif | |
4661 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
|
4662 fprintf(f, " =======================================================\n\n"); |
4533
6a2005efa02b
updated for version 7.3.1014
Bram Moolenaar <bram@vim.org>
parents:
4531
diff
changeset
|
4663 nfa_print_state(f, start); |
4444 | 4664 fprintf(f, "\n\n"); |
4665 fclose(f); | |
4666 } | |
4667 else | |
4668 EMSG(_("Could not open temporary log file for writing ")); | |
4669 #endif | |
4670 | |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4671 clear_sub(&subs.norm); |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4672 clear_sub(&m.norm); |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4673 #ifdef FEAT_SYN_HL |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4674 clear_sub(&subs.synt); |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4675 clear_sub(&m.synt); |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4676 #endif |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4677 |
4712
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
4678 if (nfa_regmatch(prog, start, &subs, &m) == FALSE) |
4444 | 4679 return 0; |
4680 | |
4681 cleanup_subexpr(); | |
4682 if (REG_MULTI) | |
4683 { | |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4684 for (i = 0; i < subs.norm.in_use; i++) |
4444 | 4685 { |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4686 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
|
4687 reg_endpos[i] = subs.norm.list.multi[i].end; |
4444 | 4688 } |
4689 | |
4690 if (reg_startpos[0].lnum < 0) | |
4691 { | |
4692 reg_startpos[0].lnum = 0; | |
4693 reg_startpos[0].col = col; | |
4694 } | |
4695 if (reg_endpos[0].lnum < 0) | |
4696 { | |
4569
f262fb02889d
updated for version 7.3.1032
Bram Moolenaar <bram@vim.org>
parents:
4567
diff
changeset
|
4697 /* pattern has a \ze but it didn't match, use current end */ |
4444 | 4698 reg_endpos[0].lnum = reglnum; |
4699 reg_endpos[0].col = (int)(reginput - regline); | |
4700 } | |
4701 else | |
4702 /* Use line number of "\ze". */ | |
4703 reglnum = reg_endpos[0].lnum; | |
4704 } | |
4705 else | |
4706 { | |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4707 for (i = 0; i < subs.norm.in_use; i++) |
4444 | 4708 { |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4709 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
|
4710 reg_endp[i] = subs.norm.list.line[i].end; |
4444 | 4711 } |
4712 | |
4713 if (reg_startp[0] == NULL) | |
4714 reg_startp[0] = regline + col; | |
4715 if (reg_endp[0] == NULL) | |
4716 reg_endp[0] = reginput; | |
4717 } | |
4718 | |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4719 #ifdef FEAT_SYN_HL |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4720 /* 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
|
4721 unref_extmatch(re_extmatch_out); |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4722 re_extmatch_out = NULL; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4723 |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4724 if (prog->reghasz == REX_SET) |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4725 { |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4726 cleanup_zsubexpr(); |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4727 re_extmatch_out = make_extmatch(); |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4728 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
|
4729 { |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4730 if (REG_MULTI) |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4731 { |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4732 struct multipos *mpos = &subs.synt.list.multi[i]; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4733 |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4734 /* Only accept single line matches. */ |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4735 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
|
4736 re_extmatch_out->matches[i] = |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4737 vim_strnsave(reg_getline(mpos->start.lnum) |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4738 + mpos->start.col, |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4739 mpos->end.col - mpos->start.col); |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4740 } |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4741 else |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4742 { |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4743 struct linepos *lpos = &subs.synt.list.line[i]; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4744 |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4745 if (lpos->start != NULL && lpos->end != NULL) |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4746 re_extmatch_out->matches[i] = |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4747 vim_strnsave(lpos->start, |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4748 (int)(lpos->end - lpos->start)); |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4749 } |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4750 } |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4751 } |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4752 #endif |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4753 |
4444 | 4754 return 1 + reglnum; |
4755 } | |
4756 | |
4757 /* | |
4758 * Match a regexp against a string ("line" points to the string) or multiple | |
4759 * lines ("line" is NULL, use reg_getline()). | |
4760 * | |
4761 * Returns 0 for failure, number of lines contained in the match otherwise. | |
4762 */ | |
4763 static long | |
4764 nfa_regexec_both(line, col) | |
4765 char_u *line; | |
4766 colnr_T col; /* column to start looking for match */ | |
4767 { | |
4768 nfa_regprog_T *prog; | |
4769 long retval = 0L; | |
4770 int i; | |
4771 | |
4772 if (REG_MULTI) | |
4773 { | |
4774 prog = (nfa_regprog_T *)reg_mmatch->regprog; | |
4775 line = reg_getline((linenr_T)0); /* relative to the cursor */ | |
4776 reg_startpos = reg_mmatch->startpos; | |
4777 reg_endpos = reg_mmatch->endpos; | |
4778 } | |
4779 else | |
4780 { | |
4781 prog = (nfa_regprog_T *)reg_match->regprog; | |
4782 reg_startp = reg_match->startp; | |
4783 reg_endp = reg_match->endp; | |
4784 } | |
4785 | |
4786 /* Be paranoid... */ | |
4787 if (prog == NULL || line == NULL) | |
4788 { | |
4789 EMSG(_(e_null)); | |
4790 goto theend; | |
4791 } | |
4792 | |
4793 /* If the start column is past the maximum column: no need to try. */ | |
4794 if (ireg_maxcol > 0 && col >= ireg_maxcol) | |
4795 goto theend; | |
4796 | |
4797 /* If pattern contains "\c" or "\C": overrule value of ireg_ic */ | |
4798 if (prog->regflags & RF_ICASE) | |
4799 ireg_ic = TRUE; | |
4800 else if (prog->regflags & RF_NOICASE) | |
4801 ireg_ic = FALSE; | |
4802 | |
4803 #ifdef FEAT_MBYTE | |
4804 /* If pattern contains "\Z" overrule value of ireg_icombine */ | |
4805 if (prog->regflags & RF_ICOMBINE) | |
4806 ireg_icombine = TRUE; | |
4807 #endif | |
4808 | |
4809 regline = line; | |
4810 reglnum = 0; /* relative to line */ | |
4811 | |
4553
7b835b2969af
updated for version 7.3.1024
Bram Moolenaar <bram@vim.org>
parents:
4551
diff
changeset
|
4812 nfa_has_zend = prog->has_zend; |
4647
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
4813 nfa_has_backref = prog->has_backref; |
4561
4d81fdda8f35
updated for version 7.3.1028
Bram Moolenaar <bram@vim.org>
parents:
4559
diff
changeset
|
4814 nfa_nsubexpr = prog->nsubexp; |
4690
9d97a0c045ef
updated for version 7.3.1092
Bram Moolenaar <bram@vim.org>
parents:
4688
diff
changeset
|
4815 #ifdef DEBUG |
9d97a0c045ef
updated for version 7.3.1092
Bram Moolenaar <bram@vim.org>
parents:
4688
diff
changeset
|
4816 nfa_regengine.expr = prog->pattern; |
9d97a0c045ef
updated for version 7.3.1092
Bram Moolenaar <bram@vim.org>
parents:
4688
diff
changeset
|
4817 #endif |
4553
7b835b2969af
updated for version 7.3.1024
Bram Moolenaar <bram@vim.org>
parents:
4551
diff
changeset
|
4818 |
4444 | 4819 nstate = prog->nstate; |
4820 for (i = 0; i < nstate; ++i) | |
4821 { | |
4822 prog->state[i].id = i; | |
4823 prog->state[i].lastlist = 0; | |
4824 } | |
4825 | |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4826 retval = nfa_regtry(prog, col); |
4444 | 4827 |
4690
9d97a0c045ef
updated for version 7.3.1092
Bram Moolenaar <bram@vim.org>
parents:
4688
diff
changeset
|
4828 #ifdef DEBUG |
9d97a0c045ef
updated for version 7.3.1092
Bram Moolenaar <bram@vim.org>
parents:
4688
diff
changeset
|
4829 nfa_regengine.expr = NULL; |
9d97a0c045ef
updated for version 7.3.1092
Bram Moolenaar <bram@vim.org>
parents:
4688
diff
changeset
|
4830 #endif |
9d97a0c045ef
updated for version 7.3.1092
Bram Moolenaar <bram@vim.org>
parents:
4688
diff
changeset
|
4831 |
4444 | 4832 theend: |
4833 return retval; | |
4834 } | |
4835 | |
4836 /* | |
4837 * Compile a regular expression into internal code for the NFA matcher. | |
4838 * Returns the program in allocated space. Returns NULL for an error. | |
4839 */ | |
4840 static regprog_T * | |
4841 nfa_regcomp(expr, re_flags) | |
4842 char_u *expr; | |
4843 int re_flags; | |
4844 { | |
4541
80170d61a85c
updated for version 7.3.1018
Bram Moolenaar <bram@vim.org>
parents:
4539
diff
changeset
|
4845 nfa_regprog_T *prog = NULL; |
4458 | 4846 size_t prog_size; |
4444 | 4847 int *postfix; |
4848 | |
4849 if (expr == NULL) | |
4850 return NULL; | |
4851 | |
4852 #ifdef DEBUG | |
4853 nfa_regengine.expr = expr; | |
4854 #endif | |
4855 | |
4856 init_class_tab(); | |
4857 | |
4858 if (nfa_regcomp_start(expr, re_flags) == FAIL) | |
4859 return NULL; | |
4860 | |
4861 /* 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
|
4862 * (and count its size). */ |
4444 | 4863 postfix = re2post(); |
4864 if (postfix == NULL) | |
4555
b2946c06d1b6
updated for version 7.3.1025
Bram Moolenaar <bram@vim.org>
parents:
4553
diff
changeset
|
4865 { |
b2946c06d1b6
updated for version 7.3.1025
Bram Moolenaar <bram@vim.org>
parents:
4553
diff
changeset
|
4866 /* TODO: only give this error for debugging? */ |
b2946c06d1b6
updated for version 7.3.1025
Bram Moolenaar <bram@vim.org>
parents:
4553
diff
changeset
|
4867 if (post_ptr >= post_end) |
b2946c06d1b6
updated for version 7.3.1025
Bram Moolenaar <bram@vim.org>
parents:
4553
diff
changeset
|
4868 EMSGN("Internal error: estimated max number of states insufficient: %ld", post_end - post_start); |
4444 | 4869 goto fail; /* Cascaded (syntax?) error */ |
4555
b2946c06d1b6
updated for version 7.3.1025
Bram Moolenaar <bram@vim.org>
parents:
4553
diff
changeset
|
4870 } |
4444 | 4871 |
4872 /* | |
4873 * In order to build the NFA, we parse the input regexp twice: | |
4874 * 1. first pass to count size (so we can allocate space) | |
4875 * 2. second to emit code | |
4876 */ | |
4877 #ifdef ENABLE_LOG | |
4878 { | |
4531
1be43c095aff
updated for version 7.3.1013
Bram Moolenaar <bram@vim.org>
parents:
4529
diff
changeset
|
4879 FILE *f = fopen(NFA_REGEXP_RUN_LOG, "a"); |
4444 | 4880 |
4881 if (f != NULL) | |
4882 { | |
4883 fprintf(f, "\n*****************************\n\n\n\n\tCompiling regexp \"%s\" ... hold on !\n", expr); | |
4884 fclose(f); | |
4885 } | |
4886 } | |
4887 #endif | |
4888 | |
4889 /* | |
4890 * PASS 1 | |
4891 * Count number of NFA states in "nstate". Do not build the NFA. | |
4892 */ | |
4893 post2nfa(postfix, post_ptr, TRUE); | |
4541
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updated for version 7.3.1018
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|
4894 |
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updated for version 7.3.1018
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|
4895 /* Space for compiled regexp */ |
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updated for version 7.3.1018
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parents:
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diff
changeset
|
4896 prog_size = sizeof(nfa_regprog_T) + sizeof(nfa_state_T) * nstate; |
80170d61a85c
updated for version 7.3.1018
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
4897 prog = (nfa_regprog_T *)lalloc(prog_size, TRUE); |
80170d61a85c
updated for version 7.3.1018
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
4898 if (prog == NULL) |
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updated for version 7.3.1018
Bram Moolenaar <bram@vim.org>
parents:
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|
4899 goto fail; |
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updated for version 7.3.1018
Bram Moolenaar <bram@vim.org>
parents:
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diff
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|
4900 vim_memset(prog, 0, prog_size); |
4444 | 4901 state_ptr = prog->state; |
4902 | |
4903 /* | |
4904 * PASS 2 | |
4905 * Build the NFA | |
4906 */ | |
4907 prog->start = post2nfa(postfix, post_ptr, FALSE); | |
4908 if (prog->start == NULL) | |
4909 goto fail; | |
4910 | |
4911 prog->regflags = regflags; | |
4912 prog->engine = &nfa_regengine; | |
4913 prog->nstate = nstate; | |
4553
7b835b2969af
updated for version 7.3.1024
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parents:
4551
diff
changeset
|
4914 prog->has_zend = nfa_has_zend; |
4647
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
4915 prog->has_backref = nfa_has_backref; |
4561
4d81fdda8f35
updated for version 7.3.1028
Bram Moolenaar <bram@vim.org>
parents:
4559
diff
changeset
|
4916 prog->nsubexp = regnpar; |
4444 | 4917 #ifdef ENABLE_LOG |
4918 nfa_postfix_dump(expr, OK); | |
4919 nfa_dump(prog); | |
4920 #endif | |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
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diff
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|
4921 #ifdef FEAT_SYN_HL |
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updated for version 7.3.1090
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diff
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|
4922 /* Remember whether this pattern has any \z specials in it. */ |
8db697ae406a
updated for version 7.3.1090
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diff
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|
4923 prog->reghasz = re_has_z; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
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diff
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|
4924 #endif |
4690
9d97a0c045ef
updated for version 7.3.1092
Bram Moolenaar <bram@vim.org>
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4688
diff
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|
4925 #ifdef DEBUG |
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updated for version 7.3.1092
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diff
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|
4926 prog->pattern = vim_strsave(expr); /* memory will leak */ |
9d97a0c045ef
updated for version 7.3.1092
Bram Moolenaar <bram@vim.org>
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diff
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|
4927 nfa_regengine.expr = NULL; |
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diff
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|
4928 #endif |
4444 | 4929 |
4930 out: | |
4931 vim_free(post_start); | |
4932 post_start = post_ptr = post_end = NULL; | |
4933 state_ptr = NULL; | |
4934 return (regprog_T *)prog; | |
4935 | |
4936 fail: | |
4937 vim_free(prog); | |
4938 prog = NULL; | |
4939 #ifdef ENABLE_LOG | |
4940 nfa_postfix_dump(expr, FAIL); | |
4941 #endif | |
4942 #ifdef DEBUG | |
4943 nfa_regengine.expr = NULL; | |
4944 #endif | |
4945 goto out; | |
4946 } | |
4947 | |
4948 | |
4949 /* | |
4950 * Match a regexp against a string. | |
4951 * "rmp->regprog" is a compiled regexp as returned by nfa_regcomp(). | |
4952 * Uses curbuf for line count and 'iskeyword'. | |
4953 * | |
4954 * Return TRUE if there is a match, FALSE if not. | |
4955 */ | |
4956 static int | |
4957 nfa_regexec(rmp, line, col) | |
4958 regmatch_T *rmp; | |
4959 char_u *line; /* string to match against */ | |
4960 colnr_T col; /* column to start looking for match */ | |
4961 { | |
4962 reg_match = rmp; | |
4963 reg_mmatch = NULL; | |
4964 reg_maxline = 0; | |
4965 reg_line_lbr = FALSE; | |
4966 reg_buf = curbuf; | |
4967 reg_win = NULL; | |
4968 ireg_ic = rmp->rm_ic; | |
4969 #ifdef FEAT_MBYTE | |
4970 ireg_icombine = FALSE; | |
4971 #endif | |
4972 ireg_maxcol = 0; | |
4973 return (nfa_regexec_both(line, col) != 0); | |
4974 } | |
4975 | |
4976 #if defined(FEAT_MODIFY_FNAME) || defined(FEAT_EVAL) \ | |
4977 || defined(FIND_REPLACE_DIALOG) || defined(PROTO) | |
4978 | |
4979 static int nfa_regexec_nl __ARGS((regmatch_T *rmp, char_u *line, colnr_T col)); | |
4980 | |
4981 /* | |
4982 * Like nfa_regexec(), but consider a "\n" in "line" to be a line break. | |
4983 */ | |
4984 static int | |
4985 nfa_regexec_nl(rmp, line, col) | |
4986 regmatch_T *rmp; | |
4987 char_u *line; /* string to match against */ | |
4988 colnr_T col; /* column to start looking for match */ | |
4989 { | |
4990 reg_match = rmp; | |
4991 reg_mmatch = NULL; | |
4992 reg_maxline = 0; | |
4993 reg_line_lbr = TRUE; | |
4994 reg_buf = curbuf; | |
4995 reg_win = NULL; | |
4996 ireg_ic = rmp->rm_ic; | |
4997 #ifdef FEAT_MBYTE | |
4998 ireg_icombine = FALSE; | |
4999 #endif | |
5000 ireg_maxcol = 0; | |
5001 return (nfa_regexec_both(line, col) != 0); | |
5002 } | |
5003 #endif | |
5004 | |
5005 | |
5006 /* | |
5007 * Match a regexp against multiple lines. | |
5008 * "rmp->regprog" is a compiled regexp as returned by vim_regcomp(). | |
5009 * Uses curbuf for line count and 'iskeyword'. | |
5010 * | |
5011 * Return zero if there is no match. Return number of lines contained in the | |
5012 * match otherwise. | |
5013 * | |
5014 * Note: the body is the same as bt_regexec() except for nfa_regexec_both() | |
5015 * | |
5016 * ! Also NOTE : match may actually be in another line. e.g.: | |
5017 * when r.e. is \nc, cursor is at 'a' and the text buffer looks like | |
5018 * | |
5019 * +-------------------------+ | |
5020 * |a | | |
5021 * |b | | |
5022 * |c | | |
5023 * | | | |
5024 * +-------------------------+ | |
5025 * | |
5026 * then nfa_regexec_multi() returns 3. while the original | |
5027 * vim_regexec_multi() returns 0 and a second call at line 2 will return 2. | |
5028 * | |
5029 * FIXME if this behavior is not compatible. | |
5030 */ | |
5031 static long | |
5032 nfa_regexec_multi(rmp, win, buf, lnum, col, tm) | |
5033 regmmatch_T *rmp; | |
5034 win_T *win; /* window in which to search or NULL */ | |
5035 buf_T *buf; /* buffer in which to search */ | |
5036 linenr_T lnum; /* nr of line to start looking for match */ | |
5037 colnr_T col; /* column to start looking for match */ | |
5038 proftime_T *tm UNUSED; /* timeout limit or NULL */ | |
5039 { | |
5040 reg_match = NULL; | |
5041 reg_mmatch = rmp; | |
5042 reg_buf = buf; | |
5043 reg_win = win; | |
5044 reg_firstlnum = lnum; | |
5045 reg_maxline = reg_buf->b_ml.ml_line_count - lnum; | |
5046 reg_line_lbr = FALSE; | |
5047 ireg_ic = rmp->rmm_ic; | |
5048 #ifdef FEAT_MBYTE | |
5049 ireg_icombine = FALSE; | |
5050 #endif | |
5051 ireg_maxcol = rmp->rmm_maxcol; | |
5052 | |
4503 | 5053 return nfa_regexec_both(NULL, col); |
4444 | 5054 } |
5055 | |
5056 #ifdef DEBUG | |
5057 # undef ENABLE_LOG | |
5058 #endif |