Mercurial > vim
annotate src/regexp_nfa.c @ 4700:0c25fa1dfd97 v7.3.1097
updated for version 7.3.1097
Problem: Python: a few recently added items are not documented.
Solution: Update the documentation. (ZyX)
author | Bram Moolenaar <bram@vim.org> |
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date | Sun, 02 Jun 2013 17:46:40 +0200 |
parents | ed4e689bbea1 |
children | 832bf8136d86 |
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 /* Number of sub expressions actually being used during execution. 1 if only |
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241 * the whole match (subexpr 0) is used. */ |
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242 static int nfa_nsubexpr; |
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243 |
4444 | 244 static int *post_start; /* holds the postfix form of r.e. */ |
245 static int *post_end; | |
246 static int *post_ptr; | |
247 | |
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248 static int nstate; /* Number of states in the NFA. Also used when |
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249 * executing. */ |
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250 static int istate; /* Index in the state vector, used in alloc_state() */ |
4444 | 251 |
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252 /* If not NULL match must end at this position */ |
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253 static save_se_T *nfa_endp = NULL; |
4444 | 254 |
255 static int nfa_regcomp_start __ARGS((char_u*expr, int re_flags)); | |
256 static int nfa_recognize_char_class __ARGS((char_u *start, char_u *end, int extra_newl)); | |
257 static int nfa_emit_equi_class __ARGS((int c, int neg)); | |
258 static int nfa_regatom __ARGS((void)); | |
259 static int nfa_regpiece __ARGS((void)); | |
260 static int nfa_regconcat __ARGS((void)); | |
261 static int nfa_regbranch __ARGS((void)); | |
262 static int nfa_reg __ARGS((int paren)); | |
263 #ifdef DEBUG | |
264 static void nfa_set_code __ARGS((int c)); | |
265 static void nfa_postfix_dump __ARGS((char_u *expr, int retval)); | |
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266 static void nfa_print_state __ARGS((FILE *debugf, nfa_state_T *state)); |
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267 static void nfa_print_state2 __ARGS((FILE *debugf, nfa_state_T *state, garray_T *indent)); |
4444 | 268 static void nfa_dump __ARGS((nfa_regprog_T *prog)); |
269 #endif | |
270 static int *re2post __ARGS((void)); | |
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271 static nfa_state_T *alloc_state __ARGS((int c, nfa_state_T *out, nfa_state_T *out1)); |
4444 | 272 static nfa_state_T *post2nfa __ARGS((int *postfix, int *end, int nfa_calc_size)); |
273 static int check_char_class __ARGS((int class, int c)); | |
274 static void st_error __ARGS((int *postfix, int *end, int *p)); | |
4583
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275 static void nfa_set_neg_listids __ARGS((nfa_state_T *start)); |
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276 static void nfa_set_null_listids __ARGS((nfa_state_T *start)); |
4444 | 277 static void nfa_save_listids __ARGS((nfa_state_T *start, int *list)); |
278 static void nfa_restore_listids __ARGS((nfa_state_T *start, int *list)); | |
4583
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279 static int nfa_re_num_cmp __ARGS((long_u val, int op, long_u pos)); |
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280 static long nfa_regtry __ARGS((nfa_regprog_T *prog, colnr_T col)); |
4444 | 281 static long nfa_regexec_both __ARGS((char_u *line, colnr_T col)); |
282 static regprog_T *nfa_regcomp __ARGS((char_u *expr, int re_flags)); | |
283 static int nfa_regexec __ARGS((regmatch_T *rmp, char_u *line, colnr_T col)); | |
284 static long nfa_regexec_multi __ARGS((regmmatch_T *rmp, win_T *win, buf_T *buf, linenr_T lnum, colnr_T col, proftime_T *tm)); | |
285 | |
286 /* helper functions used when doing re2post() ... regatom() parsing */ | |
287 #define EMIT(c) do { \ | |
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288 if (post_ptr >= post_end && realloc_post_list() == FAIL) \ |
4444 | 289 return FAIL; \ |
290 *post_ptr++ = c; \ | |
291 } while (0) | |
292 | |
293 /* | |
294 * Initialize internal variables before NFA compilation. | |
295 * Return OK on success, FAIL otherwise. | |
296 */ | |
297 static int | |
298 nfa_regcomp_start(expr, re_flags) | |
299 char_u *expr; | |
300 int re_flags; /* see vim_regcomp() */ | |
301 { | |
4458 | 302 size_t postfix_size; |
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303 int nstate_max; |
4444 | 304 |
305 nstate = 0; | |
306 istate = 0; | |
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307 /* A reasonable estimation for maximum size */ |
4673
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308 nstate_max = (int)(STRLEN(expr) + 1) * 25; |
4444 | 309 |
4454 | 310 /* Some items blow up in size, such as [A-z]. Add more space for that. |
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311 * When it is still not enough realloc_post_list() will be used. */ |
4458 | 312 nstate_max += 1000; |
4454 | 313 |
314 /* Size for postfix representation of expr. */ | |
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315 postfix_size = sizeof(int) * nstate_max; |
4454 | 316 |
4444 | 317 post_start = (int *)lalloc(postfix_size, TRUE); |
318 if (post_start == NULL) | |
319 return FAIL; | |
320 vim_memset(post_start, 0, postfix_size); | |
321 post_ptr = post_start; | |
4454 | 322 post_end = post_start + nstate_max; |
4444 | 323 nfa_has_zend = FALSE; |
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324 nfa_has_backref = FALSE; |
4444 | 325 |
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326 /* shared with BT engine */ |
4444 | 327 regcomp_start(expr, re_flags); |
328 | |
329 return OK; | |
330 } | |
331 | |
332 /* | |
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333 * Allocate more space for post_start. Called when |
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334 * running above the estimated number of states. |
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335 */ |
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336 static int |
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337 realloc_post_list() |
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338 { |
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339 int nstate_max = (int)(post_end - post_start); |
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340 int new_max = nstate_max + 1000; |
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341 int *new_start; |
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342 int *old_start; |
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343 |
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344 new_start = (int *)lalloc(new_max * sizeof(int), TRUE); |
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345 if (new_start == NULL) |
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346 return FAIL; |
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347 mch_memmove(new_start, post_start, nstate_max * sizeof(int)); |
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348 vim_memset(new_start + nstate_max, 0, 1000 * sizeof(int)); |
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349 old_start = post_start; |
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350 post_start = new_start; |
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351 post_ptr = new_start + (post_ptr - old_start); |
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352 post_end = post_start + new_max; |
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353 vim_free(old_start); |
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354 return OK; |
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355 } |
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356 |
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357 /* |
4444 | 358 * Search between "start" and "end" and try to recognize a |
359 * character class in expanded form. For example [0-9]. | |
360 * On success, return the id the character class to be emitted. | |
361 * On failure, return 0 (=FAIL) | |
362 * Start points to the first char of the range, while end should point | |
363 * to the closing brace. | |
364 */ | |
365 static int | |
366 nfa_recognize_char_class(start, end, extra_newl) | |
367 char_u *start; | |
368 char_u *end; | |
369 int extra_newl; | |
370 { | |
371 int i; | |
372 /* Each of these variables takes up a char in "config[]", | |
373 * in the order they are here. */ | |
374 int not = FALSE, af = FALSE, AF = FALSE, az = FALSE, AZ = FALSE, | |
375 o7 = FALSE, o9 = FALSE, underscore = FALSE, newl = FALSE; | |
376 char_u *p; | |
377 #define NCONFIGS 16 | |
378 int classid[NCONFIGS] = { | |
379 NFA_DIGIT, NFA_NDIGIT, NFA_HEX, NFA_NHEX, | |
380 NFA_OCTAL, NFA_NOCTAL, NFA_WORD, NFA_NWORD, | |
381 NFA_HEAD, NFA_NHEAD, NFA_ALPHA, NFA_NALPHA, | |
382 NFA_LOWER, NFA_NLOWER, NFA_UPPER, NFA_NUPPER | |
383 }; | |
4450 | 384 char_u myconfig[10]; |
4444 | 385 char_u config[NCONFIGS][9] = { |
386 "000000100", /* digit */ | |
387 "100000100", /* non digit */ | |
388 "011000100", /* hex-digit */ | |
389 "111000100", /* non hex-digit */ | |
390 "000001000", /* octal-digit */ | |
391 "100001000", /* [^0-7] */ | |
392 "000110110", /* [0-9A-Za-z_] */ | |
393 "100110110", /* [^0-9A-Za-z_] */ | |
394 "000110010", /* head of word */ | |
395 "100110010", /* not head of word */ | |
396 "000110000", /* alphabetic char a-z */ | |
397 "100110000", /* non alphabetic char */ | |
398 "000100000", /* lowercase letter */ | |
399 "100100000", /* non lowercase */ | |
400 "000010000", /* uppercase */ | |
401 "100010000" /* non uppercase */ | |
402 }; | |
403 | |
404 if (extra_newl == TRUE) | |
405 newl = TRUE; | |
406 | |
407 if (*end != ']') | |
408 return FAIL; | |
409 p = start; | |
410 if (*p == '^') | |
411 { | |
412 not = TRUE; | |
413 p ++; | |
414 } | |
415 | |
416 while (p < end) | |
417 { | |
418 if (p + 2 < end && *(p + 1) == '-') | |
419 { | |
420 switch (*p) | |
421 { | |
422 case '0': | |
423 if (*(p + 2) == '9') | |
424 { | |
425 o9 = TRUE; | |
426 break; | |
427 } | |
428 else | |
429 if (*(p + 2) == '7') | |
430 { | |
431 o7 = TRUE; | |
432 break; | |
433 } | |
434 case 'a': | |
435 if (*(p + 2) == 'z') | |
436 { | |
437 az = TRUE; | |
438 break; | |
439 } | |
440 else | |
441 if (*(p + 2) == 'f') | |
442 { | |
443 af = TRUE; | |
444 break; | |
445 } | |
446 case 'A': | |
447 if (*(p + 2) == 'Z') | |
448 { | |
449 AZ = TRUE; | |
450 break; | |
451 } | |
452 else | |
453 if (*(p + 2) == 'F') | |
454 { | |
455 AF = TRUE; | |
456 break; | |
457 } | |
458 /* FALLTHROUGH */ | |
459 default: | |
460 return FAIL; | |
461 } | |
462 p += 3; | |
463 } | |
464 else if (p + 1 < end && *p == '\\' && *(p + 1) == 'n') | |
465 { | |
466 newl = TRUE; | |
467 p += 2; | |
468 } | |
469 else if (*p == '_') | |
470 { | |
471 underscore = TRUE; | |
472 p ++; | |
473 } | |
474 else if (*p == '\n') | |
475 { | |
476 newl = TRUE; | |
477 p ++; | |
478 } | |
479 else | |
480 return FAIL; | |
481 } /* while (p < end) */ | |
482 | |
483 if (p != end) | |
484 return FAIL; | |
485 | |
486 /* build the config that represents the ranges we gathered */ | |
487 STRCPY(myconfig, "000000000"); | |
488 if (not == TRUE) | |
489 myconfig[0] = '1'; | |
490 if (af == TRUE) | |
491 myconfig[1] = '1'; | |
492 if (AF == TRUE) | |
493 myconfig[2] = '1'; | |
494 if (az == TRUE) | |
495 myconfig[3] = '1'; | |
496 if (AZ == TRUE) | |
497 myconfig[4] = '1'; | |
498 if (o7 == TRUE) | |
499 myconfig[5] = '1'; | |
500 if (o9 == TRUE) | |
501 myconfig[6] = '1'; | |
502 if (underscore == TRUE) | |
503 myconfig[7] = '1'; | |
504 if (newl == TRUE) | |
505 { | |
506 myconfig[8] = '1'; | |
507 extra_newl = ADD_NL; | |
508 } | |
509 /* try to recognize character classes */ | |
510 for (i = 0; i < NCONFIGS; i++) | |
4450 | 511 if (STRNCMP(myconfig, config[i], 8) == 0) |
4444 | 512 return classid[i] + extra_newl; |
513 | |
514 /* fallthrough => no success so far */ | |
515 return FAIL; | |
516 | |
517 #undef NCONFIGS | |
518 } | |
519 | |
520 /* | |
521 * Produce the bytes for equivalence class "c". | |
522 * Currently only handles latin1, latin9 and utf-8. | |
523 * Emits bytes in postfix notation: 'a,b,NFA_OR,c,NFA_OR' is | |
524 * equivalent to 'a OR b OR c' | |
525 * | |
526 * NOTE! When changing this function, also update reg_equi_class() | |
527 */ | |
528 static int | |
529 nfa_emit_equi_class(c, neg) | |
530 int c; | |
531 int neg; | |
532 { | |
533 int first = TRUE; | |
534 int glue = neg == TRUE ? NFA_CONCAT : NFA_OR; | |
535 #define EMIT2(c) \ | |
536 EMIT(c); \ | |
537 if (neg == TRUE) { \ | |
538 EMIT(NFA_NOT); \ | |
539 } \ | |
540 if (first == FALSE) \ | |
541 EMIT(glue); \ | |
542 else \ | |
543 first = FALSE; \ | |
544 | |
545 #ifdef FEAT_MBYTE | |
546 if (enc_utf8 || STRCMP(p_enc, "latin1") == 0 | |
547 || STRCMP(p_enc, "iso-8859-15") == 0) | |
548 #endif | |
549 { | |
550 switch (c) | |
551 { | |
552 case 'A': case '\300': case '\301': case '\302': | |
553 case '\303': case '\304': case '\305': | |
554 EMIT2('A'); EMIT2('\300'); EMIT2('\301'); | |
555 EMIT2('\302'); EMIT2('\303'); EMIT2('\304'); | |
556 EMIT2('\305'); | |
557 return OK; | |
558 | |
559 case 'C': case '\307': | |
560 EMIT2('C'); EMIT2('\307'); | |
561 return OK; | |
562 | |
563 case 'E': case '\310': case '\311': case '\312': case '\313': | |
564 EMIT2('E'); EMIT2('\310'); EMIT2('\311'); | |
565 EMIT2('\312'); EMIT2('\313'); | |
566 return OK; | |
567 | |
568 case 'I': case '\314': case '\315': case '\316': case '\317': | |
569 EMIT2('I'); EMIT2('\314'); EMIT2('\315'); | |
570 EMIT2('\316'); EMIT2('\317'); | |
571 return OK; | |
572 | |
573 case 'N': case '\321': | |
574 EMIT2('N'); EMIT2('\321'); | |
575 return OK; | |
576 | |
577 case 'O': case '\322': case '\323': case '\324': case '\325': | |
578 case '\326': | |
579 EMIT2('O'); EMIT2('\322'); EMIT2('\323'); | |
580 EMIT2('\324'); EMIT2('\325'); EMIT2('\326'); | |
581 return OK; | |
582 | |
583 case 'U': case '\331': case '\332': case '\333': case '\334': | |
584 EMIT2('U'); EMIT2('\331'); EMIT2('\332'); | |
585 EMIT2('\333'); EMIT2('\334'); | |
586 return OK; | |
587 | |
588 case 'Y': case '\335': | |
589 EMIT2('Y'); EMIT2('\335'); | |
590 return OK; | |
591 | |
592 case 'a': case '\340': case '\341': case '\342': | |
593 case '\343': case '\344': case '\345': | |
594 EMIT2('a'); EMIT2('\340'); EMIT2('\341'); | |
595 EMIT2('\342'); EMIT2('\343'); EMIT2('\344'); | |
596 EMIT2('\345'); | |
597 return OK; | |
598 | |
599 case 'c': case '\347': | |
600 EMIT2('c'); EMIT2('\347'); | |
601 return OK; | |
602 | |
603 case 'e': case '\350': case '\351': case '\352': case '\353': | |
604 EMIT2('e'); EMIT2('\350'); EMIT2('\351'); | |
605 EMIT2('\352'); EMIT2('\353'); | |
606 return OK; | |
607 | |
608 case 'i': case '\354': case '\355': case '\356': case '\357': | |
609 EMIT2('i'); EMIT2('\354'); EMIT2('\355'); | |
610 EMIT2('\356'); EMIT2('\357'); | |
611 return OK; | |
612 | |
613 case 'n': case '\361': | |
614 EMIT2('n'); EMIT2('\361'); | |
615 return OK; | |
616 | |
617 case 'o': case '\362': case '\363': case '\364': case '\365': | |
618 case '\366': | |
619 EMIT2('o'); EMIT2('\362'); EMIT2('\363'); | |
620 EMIT2('\364'); EMIT2('\365'); EMIT2('\366'); | |
621 return OK; | |
622 | |
623 case 'u': case '\371': case '\372': case '\373': case '\374': | |
624 EMIT2('u'); EMIT2('\371'); EMIT2('\372'); | |
625 EMIT2('\373'); EMIT2('\374'); | |
626 return OK; | |
627 | |
628 case 'y': case '\375': case '\377': | |
629 EMIT2('y'); EMIT2('\375'); EMIT2('\377'); | |
630 return OK; | |
631 | |
632 default: | |
633 return FAIL; | |
634 } | |
635 } | |
636 | |
637 EMIT(c); | |
638 return OK; | |
639 #undef EMIT2 | |
640 } | |
641 | |
642 /* | |
643 * Code to parse regular expression. | |
644 * | |
645 * We try to reuse parsing functions in regexp.c to | |
646 * minimize surprise and keep the syntax consistent. | |
647 */ | |
648 | |
649 /* | |
650 * Parse the lowest level. | |
651 * | |
652 * An atom can be one of a long list of items. Many atoms match one character | |
653 * in the text. It is often an ordinary character or a character class. | |
654 * Braces can be used to make a pattern into an atom. The "\z(\)" construct | |
655 * is only for syntax highlighting. | |
656 * | |
657 * atom ::= ordinary-atom | |
658 * or \( pattern \) | |
659 * or \%( pattern \) | |
660 * or \z( pattern \) | |
661 */ | |
662 static int | |
663 nfa_regatom() | |
664 { | |
665 int c; | |
666 int charclass; | |
667 int equiclass; | |
668 int collclass; | |
669 int got_coll_char; | |
670 char_u *p; | |
671 char_u *endp; | |
672 #ifdef FEAT_MBYTE | |
673 char_u *old_regparse = regparse; | |
674 #endif | |
675 int extra = 0; | |
676 int first; | |
677 int emit_range; | |
678 int negated; | |
679 int result; | |
680 int startc = -1; | |
681 int endc = -1; | |
682 int oldstartc = -1; | |
683 int cpo_lit; /* 'cpoptions' contains 'l' flag */ | |
684 int cpo_bsl; /* 'cpoptions' contains '\' flag */ | |
685 int glue; /* ID that will "glue" nodes together */ | |
686 | |
687 cpo_lit = vim_strchr(p_cpo, CPO_LITERAL) != NULL; | |
688 cpo_bsl = vim_strchr(p_cpo, CPO_BACKSL) != NULL; | |
689 | |
690 c = getchr(); | |
691 switch (c) | |
692 { | |
4543
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693 case NUL: |
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694 syntax_error = TRUE; |
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695 EMSG_RET_FAIL(_("E865: (NFA) Regexp end encountered prematurely")); |
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696 |
4444 | 697 case Magic('^'): |
698 EMIT(NFA_BOL); | |
699 break; | |
700 | |
701 case Magic('$'): | |
702 EMIT(NFA_EOL); | |
703 #if defined(FEAT_SYN_HL) || defined(PROTO) | |
704 had_eol = TRUE; | |
705 #endif | |
706 break; | |
707 | |
708 case Magic('<'): | |
709 EMIT(NFA_BOW); | |
710 break; | |
711 | |
712 case Magic('>'): | |
713 EMIT(NFA_EOW); | |
714 break; | |
715 | |
716 case Magic('_'): | |
717 c = no_Magic(getchr()); | |
718 if (c == '^') /* "\_^" is start-of-line */ | |
719 { | |
720 EMIT(NFA_BOL); | |
721 break; | |
722 } | |
723 if (c == '$') /* "\_$" is end-of-line */ | |
724 { | |
725 EMIT(NFA_EOL); | |
726 #if defined(FEAT_SYN_HL) || defined(PROTO) | |
727 had_eol = TRUE; | |
728 #endif | |
729 break; | |
730 } | |
731 | |
732 extra = ADD_NL; | |
733 | |
734 /* "\_[" is collection plus newline */ | |
735 if (c == '[') | |
4517
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736 goto collection; |
4444 | 737 |
738 /* "\_x" is character class plus newline */ | |
739 /*FALLTHROUGH*/ | |
740 | |
741 /* | |
742 * Character classes. | |
743 */ | |
744 case Magic('.'): | |
745 case Magic('i'): | |
746 case Magic('I'): | |
747 case Magic('k'): | |
748 case Magic('K'): | |
749 case Magic('f'): | |
750 case Magic('F'): | |
751 case Magic('p'): | |
752 case Magic('P'): | |
753 case Magic('s'): | |
754 case Magic('S'): | |
755 case Magic('d'): | |
756 case Magic('D'): | |
757 case Magic('x'): | |
758 case Magic('X'): | |
759 case Magic('o'): | |
760 case Magic('O'): | |
761 case Magic('w'): | |
762 case Magic('W'): | |
763 case Magic('h'): | |
764 case Magic('H'): | |
765 case Magic('a'): | |
766 case Magic('A'): | |
767 case Magic('l'): | |
768 case Magic('L'): | |
769 case Magic('u'): | |
770 case Magic('U'): | |
771 p = vim_strchr(classchars, no_Magic(c)); | |
772 if (p == NULL) | |
773 { | |
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774 EMSGN("INTERNAL: Unknown character class char: %ld", c); |
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775 return FAIL; |
4444 | 776 } |
777 #ifdef FEAT_MBYTE | |
778 /* When '.' is followed by a composing char ignore the dot, so that | |
779 * the composing char is matched here. */ | |
780 if (enc_utf8 && c == Magic('.') && utf_iscomposing(peekchr())) | |
781 { | |
4535
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782 old_regparse = regparse; |
4444 | 783 c = getchr(); |
784 goto nfa_do_multibyte; | |
785 } | |
786 #endif | |
787 EMIT(nfa_classcodes[p - classchars]); | |
788 if (extra == ADD_NL) | |
789 { | |
790 EMIT(NFA_NEWL); | |
791 EMIT(NFA_OR); | |
792 regflags |= RF_HASNL; | |
793 } | |
794 break; | |
795 | |
796 case Magic('n'): | |
797 if (reg_string) | |
798 /* In a string "\n" matches a newline character. */ | |
799 EMIT(NL); | |
800 else | |
801 { | |
802 /* In buffer text "\n" matches the end of a line. */ | |
803 EMIT(NFA_NEWL); | |
804 regflags |= RF_HASNL; | |
805 } | |
806 break; | |
807 | |
808 case Magic('('): | |
809 if (nfa_reg(REG_PAREN) == FAIL) | |
810 return FAIL; /* cascaded error */ | |
811 break; | |
812 | |
813 case Magic('|'): | |
814 case Magic('&'): | |
815 case Magic(')'): | |
816 syntax_error = TRUE; | |
4450 | 817 EMSGN(_(e_misplaced), no_Magic(c)); |
4444 | 818 return FAIL; |
819 | |
820 case Magic('='): | |
821 case Magic('?'): | |
822 case Magic('+'): | |
823 case Magic('@'): | |
824 case Magic('*'): | |
825 case Magic('{'): | |
826 /* these should follow an atom, not form an atom */ | |
827 syntax_error = TRUE; | |
4450 | 828 EMSGN(_(e_misplaced), no_Magic(c)); |
4444 | 829 return FAIL; |
830 | |
831 case Magic('~'): /* previous substitute pattern */ | |
4571
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832 /* TODO: Not supported yet */ |
4444 | 833 return FAIL; |
834 | |
4647
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835 case Magic('1'): |
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836 case Magic('2'): |
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837 case Magic('3'): |
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838 case Magic('4'): |
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839 case Magic('5'): |
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840 case Magic('6'): |
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841 case Magic('7'): |
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842 case Magic('8'): |
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843 case Magic('9'): |
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844 EMIT(NFA_BACKREF1 + (no_Magic(c) - '1')); |
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845 nfa_has_backref = TRUE; |
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846 break; |
4444 | 847 |
848 case Magic('z'): | |
849 c = no_Magic(getchr()); | |
850 switch (c) | |
851 { | |
852 case 's': | |
853 EMIT(NFA_ZSTART); | |
854 break; | |
855 case 'e': | |
856 EMIT(NFA_ZEND); | |
857 nfa_has_zend = TRUE; | |
4569
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858 break; |
4686
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859 #ifdef FEAT_SYN_HL |
4444 | 860 case '1': |
861 case '2': | |
862 case '3': | |
863 case '4': | |
864 case '5': | |
865 case '6': | |
866 case '7': | |
867 case '8': | |
868 case '9': | |
4686
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|
869 /* \z1...\z9 */ |
4688
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870 if (reg_do_extmatch != REX_USE) |
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871 EMSG_RET_FAIL(_(e_z1_not_allowed)); |
4686
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872 EMIT(NFA_ZREF1 + (no_Magic(c) - '1')); |
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873 /* No need to set nfa_has_backref, the sub-matches don't |
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874 * change when \z1 .. \z9 maches or not. */ |
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875 re_has_z = REX_USE; |
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876 break; |
4444 | 877 case '(': |
4686
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878 /* \z( */ |
4688
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879 if (reg_do_extmatch != REX_SET) |
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880 EMSG_RET_FAIL(_(e_z_not_allowed)); |
4686
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881 if (nfa_reg(REG_ZPAREN) == FAIL) |
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882 return FAIL; /* cascaded error */ |
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883 re_has_z = REX_SET; |
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884 break; |
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885 #endif |
4444 | 886 default: |
887 syntax_error = TRUE; | |
4450 | 888 EMSGN(_("E867: (NFA) Unknown operator '\\z%c'"), |
4444 | 889 no_Magic(c)); |
890 return FAIL; | |
891 } | |
892 break; | |
893 | |
894 case Magic('%'): | |
895 c = no_Magic(getchr()); | |
896 switch (c) | |
897 { | |
898 /* () without a back reference */ | |
899 case '(': | |
900 if (nfa_reg(REG_NPAREN) == FAIL) | |
901 return FAIL; | |
902 EMIT(NFA_NOPEN); | |
903 break; | |
904 | |
905 case 'd': /* %d123 decimal */ | |
906 case 'o': /* %o123 octal */ | |
907 case 'x': /* %xab hex 2 */ | |
908 case 'u': /* %uabcd hex 4 */ | |
909 case 'U': /* %U1234abcd hex 8 */ | |
4543
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910 { |
4549
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911 int nr; |
4543
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912 |
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913 switch (c) |
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914 { |
4549
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915 case 'd': nr = getdecchrs(); break; |
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916 case 'o': nr = getoctchrs(); break; |
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917 case 'x': nr = gethexchrs(2); break; |
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918 case 'u': nr = gethexchrs(4); break; |
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919 case 'U': nr = gethexchrs(8); break; |
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920 default: nr = -1; break; |
4543
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921 } |
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922 |
4549
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923 if (nr < 0) |
4543
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924 EMSG2_RET_FAIL( |
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925 _("E678: Invalid character after %s%%[dxouU]"), |
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926 reg_magic == MAGIC_ALL); |
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927 /* TODO: what if a composing character follows? */ |
4549
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928 EMIT(nr); |
4543
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929 } |
4444 | 930 break; |
931 | |
932 /* Catch \%^ and \%$ regardless of where they appear in the | |
933 * pattern -- regardless of whether or not it makes sense. */ | |
934 case '^': | |
935 EMIT(NFA_BOF); | |
936 break; | |
937 | |
938 case '$': | |
939 EMIT(NFA_EOF); | |
940 break; | |
941 | |
942 case '#': | |
4583
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diff
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|
943 EMIT(NFA_CURSOR); |
4444 | 944 break; |
945 | |
946 case 'V': | |
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|
947 /* TODO: not supported yet */ |
4444 | 948 return FAIL; |
949 break; | |
950 | |
951 case '[': | |
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|
952 /* TODO: \%[abc] not supported yet */ |
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953 return FAIL; |
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|
954 |
4444 | 955 default: |
4583
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|
956 { |
4655
779ca415f8e1
updated for version 7.3.1075
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4651
diff
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|
957 int n = 0; |
4583
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958 int cmp = c; |
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|
959 |
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960 if (c == '<' || c == '>') |
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961 c = getchr(); |
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962 while (VIM_ISDIGIT(c)) |
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|
963 { |
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|
964 n = n * 10 + (c - '0'); |
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965 c = getchr(); |
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|
966 } |
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|
967 if (c == 'l' || c == 'c' || c == 'v') |
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|
968 { |
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969 EMIT(n); |
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|
970 if (c == 'l') |
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971 EMIT(cmp == '<' ? NFA_LNUM_LT : |
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972 cmp == '>' ? NFA_LNUM_GT : NFA_LNUM); |
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973 else if (c == 'c') |
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974 EMIT(cmp == '<' ? NFA_COL_LT : |
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975 cmp == '>' ? NFA_COL_GT : NFA_COL); |
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976 else |
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977 EMIT(cmp == '<' ? NFA_VCOL_LT : |
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|
978 cmp == '>' ? NFA_VCOL_GT : NFA_VCOL); |
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|
979 break; |
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980 } |
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|
981 else if (c == '\'') |
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982 /* TODO: \%'m not supported yet */ |
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983 return FAIL; |
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984 } |
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|
985 syntax_error = TRUE; |
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|
986 EMSGN(_("E867: (NFA) Unknown operator '\\%%%c'"), |
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|
987 no_Magic(c)); |
4444 | 988 return FAIL; |
989 } | |
990 break; | |
991 | |
992 case Magic('['): | |
4517
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|
993 collection: |
4444 | 994 /* |
995 * Glue is emitted between several atoms from the []. | |
996 * It is either NFA_OR, or NFA_CONCAT. | |
997 * | |
998 * [abc] expands to 'a b NFA_OR c NFA_OR' (in postfix notation) | |
999 * [^abc] expands to 'a NFA_NOT b NFA_NOT NFA_CONCAT c NFA_NOT | |
1000 * NFA_CONCAT NFA_END_NEG_RANGE NFA_CONCAT' (in postfix | |
1001 * notation) | |
1002 * | |
1003 */ | |
1004 | |
1005 | |
1006 /* Emit negation atoms, if needed. | |
1007 * The CONCAT below merges the NOT with the previous node. */ | |
1008 #define TRY_NEG() \ | |
1009 if (negated == TRUE) \ | |
1010 { \ | |
1011 EMIT(NFA_NOT); \ | |
1012 } | |
1013 | |
1014 /* Emit glue between important nodes : CONCAT or OR. */ | |
1015 #define EMIT_GLUE() \ | |
1016 if (first == FALSE) \ | |
1017 EMIT(glue); \ | |
1018 else \ | |
1019 first = FALSE; | |
1020 | |
1021 p = regparse; | |
1022 endp = skip_anyof(p); | |
1023 if (*endp == ']') | |
1024 { | |
1025 /* | |
1026 * Try to reverse engineer character classes. For example, | |
1027 * recognize that [0-9] stands for \d and [A-Za-z_] with \h, | |
1028 * and perform the necessary substitutions in the NFA. | |
1029 */ | |
1030 result = nfa_recognize_char_class(regparse, endp, | |
1031 extra == ADD_NL); | |
1032 if (result != FAIL) | |
1033 { | |
1034 if (result >= NFA_DIGIT && result <= NFA_NUPPER) | |
1035 EMIT(result); | |
1036 else /* must be char class + newline */ | |
1037 { | |
1038 EMIT(result - ADD_NL); | |
1039 EMIT(NFA_NEWL); | |
1040 EMIT(NFA_OR); | |
1041 } | |
1042 regparse = endp; | |
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1043 mb_ptr_adv(regparse); |
4444 | 1044 return OK; |
1045 } | |
1046 /* | |
1047 * Failed to recognize a character class. Use the simple | |
1048 * version that turns [abc] into 'a' OR 'b' OR 'c' | |
1049 */ | |
1050 startc = endc = oldstartc = -1; | |
1051 first = TRUE; /* Emitting first atom in this sequence? */ | |
1052 negated = FALSE; | |
1053 glue = NFA_OR; | |
1054 if (*regparse == '^') /* negated range */ | |
1055 { | |
1056 negated = TRUE; | |
1057 glue = NFA_CONCAT; | |
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|
1058 mb_ptr_adv(regparse); |
4444 | 1059 } |
1060 if (*regparse == '-') | |
1061 { | |
1062 startc = '-'; | |
1063 EMIT(startc); | |
1064 TRY_NEG(); | |
1065 EMIT_GLUE(); | |
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|
1066 mb_ptr_adv(regparse); |
4444 | 1067 } |
1068 /* Emit the OR branches for each character in the [] */ | |
1069 emit_range = FALSE; | |
1070 while (regparse < endp) | |
1071 { | |
1072 oldstartc = startc; | |
1073 startc = -1; | |
1074 got_coll_char = FALSE; | |
1075 if (*regparse == '[') | |
1076 { | |
1077 /* Check for [: :], [= =], [. .] */ | |
1078 equiclass = collclass = 0; | |
1079 charclass = get_char_class(®parse); | |
1080 if (charclass == CLASS_NONE) | |
1081 { | |
1082 equiclass = get_equi_class(®parse); | |
1083 if (equiclass == 0) | |
1084 collclass = get_coll_element(®parse); | |
1085 } | |
1086 | |
1087 /* Character class like [:alpha:] */ | |
1088 if (charclass != CLASS_NONE) | |
1089 { | |
1090 switch (charclass) | |
1091 { | |
1092 case CLASS_ALNUM: | |
1093 EMIT(NFA_CLASS_ALNUM); | |
1094 break; | |
1095 case CLASS_ALPHA: | |
1096 EMIT(NFA_CLASS_ALPHA); | |
1097 break; | |
1098 case CLASS_BLANK: | |
1099 EMIT(NFA_CLASS_BLANK); | |
1100 break; | |
1101 case CLASS_CNTRL: | |
1102 EMIT(NFA_CLASS_CNTRL); | |
1103 break; | |
1104 case CLASS_DIGIT: | |
1105 EMIT(NFA_CLASS_DIGIT); | |
1106 break; | |
1107 case CLASS_GRAPH: | |
1108 EMIT(NFA_CLASS_GRAPH); | |
1109 break; | |
1110 case CLASS_LOWER: | |
1111 EMIT(NFA_CLASS_LOWER); | |
1112 break; | |
1113 case CLASS_PRINT: | |
1114 EMIT(NFA_CLASS_PRINT); | |
1115 break; | |
1116 case CLASS_PUNCT: | |
1117 EMIT(NFA_CLASS_PUNCT); | |
1118 break; | |
1119 case CLASS_SPACE: | |
1120 EMIT(NFA_CLASS_SPACE); | |
1121 break; | |
1122 case CLASS_UPPER: | |
1123 EMIT(NFA_CLASS_UPPER); | |
1124 break; | |
1125 case CLASS_XDIGIT: | |
1126 EMIT(NFA_CLASS_XDIGIT); | |
1127 break; | |
1128 case CLASS_TAB: | |
1129 EMIT(NFA_CLASS_TAB); | |
1130 break; | |
1131 case CLASS_RETURN: | |
1132 EMIT(NFA_CLASS_RETURN); | |
1133 break; | |
1134 case CLASS_BACKSPACE: | |
1135 EMIT(NFA_CLASS_BACKSPACE); | |
1136 break; | |
1137 case CLASS_ESCAPE: | |
1138 EMIT(NFA_CLASS_ESCAPE); | |
1139 break; | |
1140 } | |
1141 TRY_NEG(); | |
1142 EMIT_GLUE(); | |
1143 continue; | |
1144 } | |
1145 /* Try equivalence class [=a=] and the like */ | |
1146 if (equiclass != 0) | |
1147 { | |
1148 result = nfa_emit_equi_class(equiclass, negated); | |
1149 if (result == FAIL) | |
1150 { | |
1151 /* should never happen */ | |
1152 EMSG_RET_FAIL(_("E868: Error building NFA with equivalence class!")); | |
1153 } | |
1154 EMIT_GLUE(); | |
1155 continue; | |
1156 } | |
1157 /* Try collating class like [. .] */ | |
1158 if (collclass != 0) | |
1159 { | |
1160 startc = collclass; /* allow [.a.]-x as a range */ | |
1161 /* Will emit the proper atom at the end of the | |
1162 * while loop. */ | |
1163 } | |
1164 } | |
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1165 /* Try a range like 'a-x' or '\t-z'. Also allows '-' as a |
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|
1166 * start character. */ |
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|
1167 if (*regparse == '-' && oldstartc != -1) |
4444 | 1168 { |
1169 emit_range = TRUE; | |
1170 startc = oldstartc; | |
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1171 mb_ptr_adv(regparse); |
4444 | 1172 continue; /* reading the end of the range */ |
1173 } | |
1174 | |
1175 /* Now handle simple and escaped characters. | |
1176 * Only "\]", "\^", "\]" and "\\" are special in Vi. Vim | |
1177 * accepts "\t", "\e", etc., but only when the 'l' flag in | |
1178 * 'cpoptions' is not included. | |
1179 * Posix doesn't recognize backslash at all. | |
1180 */ | |
1181 if (*regparse == '\\' | |
1182 && !cpo_bsl | |
1183 && regparse + 1 <= endp | |
1184 && (vim_strchr(REGEXP_INRANGE, regparse[1]) != NULL | |
1185 || (!cpo_lit | |
1186 && vim_strchr(REGEXP_ABBR, regparse[1]) | |
1187 != NULL) | |
1188 ) | |
1189 ) | |
1190 { | |
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1191 mb_ptr_adv(regparse); |
4444 | 1192 |
4507
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|
1193 if (*regparse == 'n') |
4444 | 1194 startc = reg_string ? NL : NFA_NEWL; |
1195 else | |
1196 if (*regparse == 'd' | |
1197 || *regparse == 'o' | |
1198 || *regparse == 'x' | |
1199 || *regparse == 'u' | |
1200 || *regparse == 'U' | |
1201 ) | |
1202 { | |
1203 /* TODO(RE) This needs more testing */ | |
1204 startc = coll_get_char(); | |
1205 got_coll_char = TRUE; | |
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1206 mb_ptr_back(old_regparse, regparse); |
4444 | 1207 } |
1208 else | |
1209 { | |
1210 /* \r,\t,\e,\b */ | |
1211 startc = backslash_trans(*regparse); | |
1212 } | |
1213 } | |
1214 | |
1215 /* Normal printable char */ | |
1216 if (startc == -1) | |
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1217 startc = PTR2CHAR(regparse); |
4444 | 1218 |
1219 /* Previous char was '-', so this char is end of range. */ | |
1220 if (emit_range) | |
1221 { | |
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1222 endc = startc; |
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1223 startc = oldstartc; |
4444 | 1224 if (startc > endc) |
1225 EMSG_RET_FAIL(_(e_invrange)); | |
1226 #ifdef FEAT_MBYTE | |
1227 if (has_mbyte && ((*mb_char2len)(startc) > 1 | |
1228 || (*mb_char2len)(endc) > 1)) | |
1229 { | |
1230 if (endc > startc + 256) | |
1231 EMSG_RET_FAIL(_(e_invrange)); | |
1232 /* Emit the range. "startc" was already emitted, so | |
1233 * skip it. */ | |
1234 for (c = startc + 1; c <= endc; c++) | |
1235 { | |
4527
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1236 EMIT(c); |
4444 | 1237 TRY_NEG(); |
1238 EMIT_GLUE(); | |
1239 } | |
1240 } | |
1241 else | |
1242 #endif | |
1243 { | |
1244 #ifdef EBCDIC | |
1245 int alpha_only = FALSE; | |
1246 | |
1247 /* for alphabetical range skip the gaps | |
1248 * 'i'-'j', 'r'-'s', 'I'-'J' and 'R'-'S'. */ | |
1249 if (isalpha(startc) && isalpha(endc)) | |
1250 alpha_only = TRUE; | |
1251 #endif | |
1252 /* Emit the range. "startc" was already emitted, so | |
1253 * skip it. */ | |
1254 for (c = startc + 1; c <= endc; c++) | |
1255 #ifdef EBCDIC | |
1256 if (!alpha_only || isalpha(startc)) | |
1257 #endif | |
1258 { | |
1259 EMIT(c); | |
1260 TRY_NEG(); | |
1261 EMIT_GLUE(); | |
1262 } | |
1263 } | |
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1264 emit_range = FALSE; |
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1265 startc = -1; |
4444 | 1266 } |
1267 else | |
1268 { | |
1269 /* | |
1270 * This char (startc) is not part of a range. Just | |
1271 * emit it. | |
1272 * | |
1273 * Normally, simply emit startc. But if we get char | |
1274 * code=0 from a collating char, then replace it with | |
1275 * 0x0a. | |
1276 * | |
1277 * This is needed to completely mimic the behaviour of | |
1278 * the backtracking engine. | |
1279 */ | |
1280 if (got_coll_char == TRUE && startc == 0) | |
1281 EMIT(0x0a); | |
1282 else | |
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1283 EMIT(startc); |
4444 | 1284 TRY_NEG(); |
1285 EMIT_GLUE(); | |
1286 } | |
1287 | |
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1288 mb_ptr_adv(regparse); |
4444 | 1289 } /* while (p < endp) */ |
1290 | |
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1291 mb_ptr_back(old_regparse, regparse); |
4444 | 1292 if (*regparse == '-') /* if last, '-' is just a char */ |
1293 { | |
1294 EMIT('-'); | |
1295 TRY_NEG(); | |
1296 EMIT_GLUE(); | |
1297 } | |
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1298 mb_ptr_adv(regparse); |
4444 | 1299 |
1300 /* skip the trailing ] */ | |
1301 regparse = endp; | |
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1302 mb_ptr_adv(regparse); |
4444 | 1303 if (negated == TRUE) |
1304 { | |
1305 /* Mark end of negated char range */ | |
1306 EMIT(NFA_END_NEG_RANGE); | |
1307 EMIT(NFA_CONCAT); | |
1308 } | |
4615
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1309 |
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1310 /* \_[] also matches \n but it's not negated */ |
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1311 if (extra == ADD_NL) |
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1312 { |
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|
1313 EMIT(reg_string ? NL : NFA_NEWL); |
5679b8ddd8cc
updated for version 7.3.1055
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1314 EMIT(NFA_OR); |
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|
1315 } |
5679b8ddd8cc
updated for version 7.3.1055
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|
1316 |
4444 | 1317 return OK; |
4529
432a6b8c7d93
updated for version 7.3.1012
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4527
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|
1318 } /* if exists closing ] */ |
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|
1319 |
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updated for version 7.3.1012
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|
1320 if (reg_strict) |
4444 | 1321 { |
1322 syntax_error = TRUE; | |
1323 EMSG_RET_FAIL(_(e_missingbracket)); | |
1324 } | |
4529
432a6b8c7d93
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|
1325 /* FALLTHROUGH */ |
432a6b8c7d93
updated for version 7.3.1012
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diff
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|
1326 |
4444 | 1327 default: |
1328 { | |
1329 #ifdef FEAT_MBYTE | |
1330 int plen; | |
1331 | |
1332 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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|
1333 /* plen is length of current char with composing chars */ |
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updated for version 7.3.1019
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|
1334 if (enc_utf8 && ((*mb_char2len)(c) |
08ac46980953
updated for version 7.3.1019
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4541
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|
1335 != (plen = (*mb_ptr2len)(old_regparse)) |
08ac46980953
updated for version 7.3.1019
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4541
diff
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|
1336 || utf_iscomposing(c))) |
4444 | 1337 { |
4549
849180347ac3
updated for version 7.3.1022
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4547
diff
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|
1338 int i = 0; |
849180347ac3
updated for version 7.3.1022
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4547
diff
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|
1339 |
4535
45f97c349537
updated for version 7.3.1015
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4533
diff
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|
1340 /* 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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|
1341 * or more composing characters. |
4527
55bcaa1d2749
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|
1342 * This requires creating a separate atom as if enclosing |
55bcaa1d2749
updated for version 7.3.1011
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|
1343 * the characters in (), where NFA_COMPOSING is the ( and |
55bcaa1d2749
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4525
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|
1344 * NFA_END_COMPOSING is the ). Note that right now we are |
4444 | 1345 * building the postfix form, not the NFA itself; |
1346 * a composing char could be: a, b, c, NFA_COMPOSING | |
4527
55bcaa1d2749
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|
1347 * where 'b' and 'c' are chars with codes > 256. */ |
55bcaa1d2749
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|
1348 for (;;) |
55bcaa1d2749
updated for version 7.3.1011
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|
1349 { |
55bcaa1d2749
updated for version 7.3.1011
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|
1350 EMIT(c); |
55bcaa1d2749
updated for version 7.3.1011
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diff
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|
1351 if (i > 0) |
55bcaa1d2749
updated for version 7.3.1011
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4525
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|
1352 EMIT(NFA_CONCAT); |
4529
432a6b8c7d93
updated for version 7.3.1012
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4527
diff
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|
1353 if ((i += utf_char2len(c)) >= plen) |
4527
55bcaa1d2749
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|
1354 break; |
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updated for version 7.3.1011
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4525
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|
1355 c = utf_ptr2char(old_regparse + i); |
55bcaa1d2749
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|
1356 } |
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diff
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|
1357 EMIT(NFA_COMPOSING); |
4444 | 1358 regparse = old_regparse + plen; |
1359 } | |
1360 else | |
1361 #endif | |
1362 { | |
1363 c = no_Magic(c); | |
1364 EMIT(c); | |
1365 } | |
1366 return OK; | |
1367 } | |
1368 } | |
1369 | |
1370 #undef TRY_NEG | |
1371 #undef EMIT_GLUE | |
1372 | |
1373 return OK; | |
1374 } | |
1375 | |
1376 /* | |
1377 * Parse something followed by possible [*+=]. | |
1378 * | |
1379 * A piece is an atom, possibly followed by a multi, an indication of how many | |
1380 * times the atom can be matched. Example: "a*" matches any sequence of "a" | |
1381 * characters: "", "a", "aa", etc. | |
1382 * | |
1383 * piece ::= atom | |
1384 * or atom multi | |
1385 */ | |
1386 static int | |
1387 nfa_regpiece() | |
1388 { | |
1389 int i; | |
1390 int op; | |
1391 int ret; | |
1392 long minval, maxval; | |
1393 int greedy = TRUE; /* Braces are prefixed with '-' ? */ | |
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|
1394 parse_state_T old_state; |
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|
1395 parse_state_T new_state; |
4444 | 1396 int c2; |
4651
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|
1397 int old_post_pos; |
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|
1398 int my_post_start; |
4444 | 1399 int quest; |
1400 | |
4679
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|
1401 /* Save the current parse state, so that we can use it if <atom>{m,n} is |
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|
1402 * next. */ |
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|
1403 save_parse_state(&old_state); |
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|
1404 |
4444 | 1405 /* store current pos in the postfix form, for \{m,n} involving 0s */ |
4651
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|
1406 my_post_start = (int)(post_ptr - post_start); |
4444 | 1407 |
1408 ret = nfa_regatom(); | |
1409 if (ret == FAIL) | |
1410 return FAIL; /* cascaded error */ | |
1411 | |
1412 op = peekchr(); | |
1413 if (re_multi_type(op) == NOT_MULTI) | |
1414 return OK; | |
1415 | |
1416 skipchr(); | |
1417 switch (op) | |
1418 { | |
1419 case Magic('*'): | |
1420 EMIT(NFA_STAR); | |
1421 break; | |
1422 | |
1423 case Magic('+'): | |
1424 /* | |
1425 * Trick: Normally, (a*)\+ would match the whole input "aaa". The | |
1426 * first and only submatch would be "aaa". But the backtracking | |
1427 * engine interprets the plus as "try matching one more time", and | |
1428 * a* matches a second time at the end of the input, the empty | |
1429 * string. | |
1430 * The submatch will the empty string. | |
1431 * | |
4673
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1432 * In order to be consistent with the old engine, we replace |
05d57d7c2d55
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|
1433 * <atom>+ with <atom><atom>* |
4444 | 1434 */ |
4679
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|
1435 restore_parse_state(&old_state); |
4444 | 1436 curchr = -1; |
1437 if (nfa_regatom() == FAIL) | |
1438 return FAIL; | |
1439 EMIT(NFA_STAR); | |
1440 EMIT(NFA_CONCAT); | |
1441 skipchr(); /* skip the \+ */ | |
1442 break; | |
1443 | |
1444 case Magic('@'): | |
4682
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|
1445 c2 = getdecchrs(); |
4444 | 1446 op = no_Magic(getchr()); |
4682
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|
1447 i = 0; |
4444 | 1448 switch(op) |
1449 { | |
1450 case '=': | |
4682
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|
1451 /* \@= */ |
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|
1452 i = NFA_PREV_ATOM_NO_WIDTH; |
4444 | 1453 break; |
4661
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|
1454 case '!': |
4682
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|
1455 /* \@! */ |
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|
1456 i = NFA_PREV_ATOM_NO_WIDTH_NEG; |
4661
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|
1457 break; |
4444 | 1458 case '<': |
4682
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|
1459 op = no_Magic(getchr()); |
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|
1460 if (op == '=') |
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|
1461 /* \@<= */ |
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|
1462 i = NFA_PREV_ATOM_JUST_BEFORE; |
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|
1463 else if (op == '!') |
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|
1464 /* \@<! */ |
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|
1465 i = NFA_PREV_ATOM_JUST_BEFORE_NEG; |
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updated for version 7.3.1088
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|
1466 break; |
4444 | 1467 case '>': |
4682
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|
1468 /* \@> Not supported yet */ |
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|
1469 /* i = NFA_PREV_ATOM_LIKE_PATTERN; */ |
4444 | 1470 return FAIL; |
1471 } | |
4682
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1472 if (i == 0) |
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|
1473 { |
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|
1474 syntax_error = TRUE; |
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|
1475 EMSGN(_("E869: (NFA) Unknown operator '\\@%c'"), op); |
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|
1476 return FAIL; |
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|
1477 } |
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|
1478 EMIT(i); |
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|
1479 if (i == NFA_PREV_ATOM_JUST_BEFORE |
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|
1480 || i == NFA_PREV_ATOM_JUST_BEFORE_NEG) |
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|
1481 EMIT(c2); |
4444 | 1482 break; |
1483 | |
1484 case Magic('?'): | |
1485 case Magic('='): | |
1486 EMIT(NFA_QUEST); | |
1487 break; | |
1488 | |
1489 case Magic('{'): | |
1490 /* a{2,5} will expand to 'aaa?a?a?' | |
1491 * a{-1,3} will expand to 'aa??a??', where ?? is the nongreedy | |
1492 * version of '?' | |
1493 * \v(ab){2,3} will expand to '(ab)(ab)(ab)?', where all the | |
1494 * parenthesis have the same id | |
1495 */ | |
1496 | |
1497 greedy = TRUE; | |
1498 c2 = peekchr(); | |
1499 if (c2 == '-' || c2 == Magic('-')) | |
1500 { | |
1501 skipchr(); | |
1502 greedy = FALSE; | |
1503 } | |
1504 if (!read_limits(&minval, &maxval)) | |
1505 { | |
1506 syntax_error = TRUE; | |
1507 EMSG_RET_FAIL(_("E870: (NFA regexp) Error reading repetition limits")); | |
1508 } | |
1509 /* <atom>{0,inf}, <atom>{0,} and <atom>{} are equivalent to | |
1510 * <atom>* */ | |
4675
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|
1511 if (minval == 0 && maxval == MAX_LIMIT) |
4444 | 1512 { |
4675
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|
1513 if (greedy) |
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|
1514 /* \{}, \{0,} */ |
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|
1515 EMIT(NFA_STAR); |
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|
1516 else |
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|
1517 /* \{-}, \{-0,} */ |
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|
1518 EMIT(NFA_STAR_NONGREEDY); |
4444 | 1519 break; |
1520 } | |
1521 | |
1522 /* Special case: x{0} or x{-0} */ | |
1523 if (maxval == 0) | |
1524 { | |
1525 /* Ignore result of previous call to nfa_regatom() */ | |
4651
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|
1526 post_ptr = post_start + my_post_start; |
4444 | 1527 /* NFA_SKIP_CHAR has 0-length and works everywhere */ |
1528 EMIT(NFA_SKIP_CHAR); | |
1529 return OK; | |
1530 } | |
1531 | |
1532 /* Ignore previous call to nfa_regatom() */ | |
4651
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|
1533 post_ptr = post_start + my_post_start; |
4679
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|
1534 /* Save parse state after the repeated atom and the \{} */ |
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|
1535 save_parse_state(&new_state); |
4444 | 1536 |
1537 quest = (greedy == TRUE? NFA_QUEST : NFA_QUEST_NONGREEDY); | |
1538 for (i = 0; i < maxval; i++) | |
1539 { | |
1540 /* Goto beginning of the repeated atom */ | |
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|
1541 restore_parse_state(&old_state); |
4651
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|
1542 old_post_pos = (int)(post_ptr - post_start); |
4444 | 1543 if (nfa_regatom() == FAIL) |
1544 return FAIL; | |
1545 /* after "minval" times, atoms are optional */ | |
1546 if (i + 1 > minval) | |
4673
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|
1547 { |
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|
1548 if (maxval == MAX_LIMIT) |
4675
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|
1549 { |
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|
1550 if (greedy) |
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|
1551 EMIT(NFA_STAR); |
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|
1552 else |
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|
1553 EMIT(NFA_STAR_NONGREEDY); |
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|
1554 } |
4673
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|
1555 else |
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|
1556 EMIT(quest); |
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|
1557 } |
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|
1558 if (old_post_pos != my_post_start) |
4444 | 1559 EMIT(NFA_CONCAT); |
4673
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|
1560 if (i + 1 > minval && maxval == MAX_LIMIT) |
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|
1561 break; |
4444 | 1562 } |
1563 | |
1564 /* Go to just after the repeated atom and the \{} */ | |
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|
1565 restore_parse_state(&new_state); |
4444 | 1566 curchr = -1; |
1567 | |
1568 break; | |
1569 | |
1570 | |
1571 default: | |
1572 break; | |
1573 } /* end switch */ | |
1574 | |
1575 if (re_multi_type(peekchr()) != NOT_MULTI) | |
1576 { | |
1577 /* Can't have a multi follow a multi. */ | |
1578 syntax_error = TRUE; | |
1579 EMSG_RET_FAIL(_("E871: (NFA regexp) Can't have a multi follow a multi !")); | |
1580 } | |
1581 | |
1582 return OK; | |
1583 } | |
1584 | |
1585 /* | |
1586 * Parse one or more pieces, concatenated. It matches a match for the | |
1587 * first piece, followed by a match for the second piece, etc. Example: | |
1588 * "f[0-9]b", first matches "f", then a digit and then "b". | |
1589 * | |
1590 * concat ::= piece | |
1591 * or piece piece | |
1592 * or piece piece piece | |
1593 * etc. | |
1594 */ | |
1595 static int | |
1596 nfa_regconcat() | |
1597 { | |
1598 int cont = TRUE; | |
1599 int first = TRUE; | |
1600 | |
1601 while (cont) | |
1602 { | |
1603 switch (peekchr()) | |
1604 { | |
1605 case NUL: | |
1606 case Magic('|'): | |
1607 case Magic('&'): | |
1608 case Magic(')'): | |
1609 cont = FALSE; | |
1610 break; | |
1611 | |
1612 case Magic('Z'): | |
1613 #ifdef FEAT_MBYTE | |
1614 regflags |= RF_ICOMBINE; | |
1615 #endif | |
1616 skipchr_keepstart(); | |
1617 break; | |
1618 case Magic('c'): | |
1619 regflags |= RF_ICASE; | |
1620 skipchr_keepstart(); | |
1621 break; | |
1622 case Magic('C'): | |
1623 regflags |= RF_NOICASE; | |
1624 skipchr_keepstart(); | |
1625 break; | |
1626 case Magic('v'): | |
1627 reg_magic = MAGIC_ALL; | |
1628 skipchr_keepstart(); | |
1629 curchr = -1; | |
1630 break; | |
1631 case Magic('m'): | |
1632 reg_magic = MAGIC_ON; | |
1633 skipchr_keepstart(); | |
1634 curchr = -1; | |
1635 break; | |
1636 case Magic('M'): | |
1637 reg_magic = MAGIC_OFF; | |
1638 skipchr_keepstart(); | |
1639 curchr = -1; | |
1640 break; | |
1641 case Magic('V'): | |
1642 reg_magic = MAGIC_NONE; | |
1643 skipchr_keepstart(); | |
1644 curchr = -1; | |
1645 break; | |
1646 | |
1647 default: | |
1648 if (nfa_regpiece() == FAIL) | |
1649 return FAIL; | |
1650 if (first == FALSE) | |
1651 EMIT(NFA_CONCAT); | |
1652 else | |
1653 first = FALSE; | |
1654 break; | |
1655 } | |
1656 } | |
1657 | |
1658 return OK; | |
1659 } | |
1660 | |
1661 /* | |
1662 * Parse a branch, one or more concats, separated by "\&". It matches the | |
1663 * last concat, but only if all the preceding concats also match at the same | |
1664 * position. Examples: | |
1665 * "foobeep\&..." matches "foo" in "foobeep". | |
1666 * ".*Peter\&.*Bob" matches in a line containing both "Peter" and "Bob" | |
1667 * | |
1668 * branch ::= concat | |
1669 * or concat \& concat | |
1670 * or concat \& concat \& concat | |
1671 * etc. | |
1672 */ | |
1673 static int | |
1674 nfa_regbranch() | |
1675 { | |
1676 int ch; | |
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1677 int old_post_pos; |
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1678 |
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1679 old_post_pos = (int)(post_ptr - post_start); |
4444 | 1680 |
1681 /* First branch, possibly the only one */ | |
1682 if (nfa_regconcat() == FAIL) | |
1683 return FAIL; | |
1684 | |
1685 ch = peekchr(); | |
1686 /* Try next concats */ | |
1687 while (ch == Magic('&')) | |
1688 { | |
1689 skipchr(); | |
1690 EMIT(NFA_NOPEN); | |
1691 EMIT(NFA_PREV_ATOM_NO_WIDTH); | |
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1692 old_post_pos = (int)(post_ptr - post_start); |
4444 | 1693 if (nfa_regconcat() == FAIL) |
1694 return FAIL; | |
1695 /* if concat is empty, skip a input char. But do emit a node */ | |
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1696 if (old_post_pos == (int)(post_ptr - post_start)) |
4444 | 1697 EMIT(NFA_SKIP_CHAR); |
1698 EMIT(NFA_CONCAT); | |
1699 ch = peekchr(); | |
1700 } | |
1701 | |
1702 /* Even if a branch is empty, emit one node for it */ | |
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1703 if (old_post_pos == (int)(post_ptr - post_start)) |
4444 | 1704 EMIT(NFA_SKIP_CHAR); |
1705 | |
1706 return OK; | |
1707 } | |
1708 | |
1709 /* | |
1710 * Parse a pattern, one or more branches, separated by "\|". It matches | |
1711 * anything that matches one of the branches. Example: "foo\|beep" matches | |
1712 * "foo" and matches "beep". If more than one branch matches, the first one | |
1713 * is used. | |
1714 * | |
1715 * pattern ::= branch | |
1716 * or branch \| branch | |
1717 * or branch \| branch \| branch | |
1718 * etc. | |
1719 */ | |
1720 static int | |
1721 nfa_reg(paren) | |
1722 int paren; /* REG_NOPAREN, REG_PAREN, REG_NPAREN or REG_ZPAREN */ | |
1723 { | |
1724 int parno = 0; | |
1725 | |
1726 if (paren == REG_PAREN) | |
1727 { | |
1728 if (regnpar >= NSUBEXP) /* Too many `(' */ | |
1729 { | |
1730 syntax_error = TRUE; | |
1731 EMSG_RET_FAIL(_("E872: (NFA regexp) Too many '('")); | |
1732 } | |
1733 parno = regnpar++; | |
1734 } | |
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1735 #ifdef FEAT_SYN_HL |
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1736 else if (paren == REG_ZPAREN) |
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1737 { |
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|
1738 /* Make a ZOPEN node. */ |
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1739 if (regnzpar >= NSUBEXP) |
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|
1740 { |
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1741 syntax_error = TRUE; |
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|
1742 EMSG_RET_FAIL(_("E879: (NFA regexp) Too many \\z(")); |
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1743 } |
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1744 parno = regnzpar++; |
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1745 } |
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1746 #endif |
4444 | 1747 |
1748 if (nfa_regbranch() == FAIL) | |
1749 return FAIL; /* cascaded error */ | |
1750 | |
1751 while (peekchr() == Magic('|')) | |
1752 { | |
1753 skipchr(); | |
1754 if (nfa_regbranch() == FAIL) | |
1755 return FAIL; /* cascaded error */ | |
1756 EMIT(NFA_OR); | |
1757 } | |
1758 | |
1759 /* Check for proper termination. */ | |
1760 if (paren != REG_NOPAREN && getchr() != Magic(')')) | |
1761 { | |
1762 syntax_error = TRUE; | |
1763 if (paren == REG_NPAREN) | |
1764 EMSG2_RET_FAIL(_(e_unmatchedpp), reg_magic == MAGIC_ALL); | |
1765 else | |
1766 EMSG2_RET_FAIL(_(e_unmatchedp), reg_magic == MAGIC_ALL); | |
1767 } | |
1768 else if (paren == REG_NOPAREN && peekchr() != NUL) | |
1769 { | |
1770 syntax_error = TRUE; | |
1771 if (peekchr() == Magic(')')) | |
1772 EMSG2_RET_FAIL(_(e_unmatchedpar), reg_magic == MAGIC_ALL); | |
1773 else | |
1774 EMSG_RET_FAIL(_("E873: (NFA regexp) proper termination error")); | |
1775 } | |
1776 /* | |
1777 * Here we set the flag allowing back references to this set of | |
1778 * parentheses. | |
1779 */ | |
1780 if (paren == REG_PAREN) | |
1781 { | |
1782 had_endbrace[parno] = TRUE; /* have seen the close paren */ | |
1783 EMIT(NFA_MOPEN + parno); | |
1784 } | |
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1785 #ifdef FEAT_SYN_HL |
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1786 else if (paren == REG_ZPAREN) |
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1787 EMIT(NFA_ZOPEN + parno); |
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1788 #endif |
4444 | 1789 |
1790 return OK; | |
1791 } | |
1792 | |
1793 #ifdef DEBUG | |
1794 static char_u code[50]; | |
1795 | |
1796 static void | |
1797 nfa_set_code(c) | |
1798 int c; | |
1799 { | |
1800 int addnl = FALSE; | |
1801 | |
1802 if (c >= NFA_FIRST_NL && c <= NFA_LAST_NL) | |
1803 { | |
1804 addnl = TRUE; | |
1805 c -= ADD_NL; | |
1806 } | |
1807 | |
1808 STRCPY(code, ""); | |
1809 switch (c) | |
1810 { | |
1811 case NFA_MATCH: STRCPY(code, "NFA_MATCH "); break; | |
1812 case NFA_SPLIT: STRCPY(code, "NFA_SPLIT "); break; | |
1813 case NFA_CONCAT: STRCPY(code, "NFA_CONCAT "); break; | |
1814 case NFA_NEWL: STRCPY(code, "NFA_NEWL "); break; | |
1815 case NFA_ZSTART: STRCPY(code, "NFA_ZSTART"); break; | |
1816 case NFA_ZEND: STRCPY(code, "NFA_ZEND"); break; | |
1817 | |
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1818 case NFA_BACKREF1: STRCPY(code, "NFA_BACKREF1"); break; |
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1819 case NFA_BACKREF2: STRCPY(code, "NFA_BACKREF2"); break; |
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1820 case NFA_BACKREF3: STRCPY(code, "NFA_BACKREF3"); break; |
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1821 case NFA_BACKREF4: STRCPY(code, "NFA_BACKREF4"); break; |
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1822 case NFA_BACKREF5: STRCPY(code, "NFA_BACKREF5"); break; |
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1823 case NFA_BACKREF6: STRCPY(code, "NFA_BACKREF6"); break; |
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1824 case NFA_BACKREF7: STRCPY(code, "NFA_BACKREF7"); break; |
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1825 case NFA_BACKREF8: STRCPY(code, "NFA_BACKREF8"); break; |
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1826 case NFA_BACKREF9: STRCPY(code, "NFA_BACKREF9"); break; |
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1827 #ifdef FEAT_SYN_HL |
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1828 case NFA_ZREF1: STRCPY(code, "NFA_ZREF1"); break; |
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1829 case NFA_ZREF2: STRCPY(code, "NFA_ZREF2"); break; |
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1830 case NFA_ZREF3: STRCPY(code, "NFA_ZREF3"); break; |
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1831 case NFA_ZREF4: STRCPY(code, "NFA_ZREF4"); break; |
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1832 case NFA_ZREF5: STRCPY(code, "NFA_ZREF5"); break; |
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1833 case NFA_ZREF6: STRCPY(code, "NFA_ZREF6"); break; |
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1834 case NFA_ZREF7: STRCPY(code, "NFA_ZREF7"); break; |
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1835 case NFA_ZREF8: STRCPY(code, "NFA_ZREF8"); break; |
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1836 case NFA_ZREF9: STRCPY(code, "NFA_ZREF9"); break; |
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1837 #endif |
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1838 case NFA_SKIP: STRCPY(code, "NFA_SKIP"); break; |
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1839 |
4444 | 1840 case NFA_PREV_ATOM_NO_WIDTH: |
1841 STRCPY(code, "NFA_PREV_ATOM_NO_WIDTH"); break; | |
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1842 case NFA_PREV_ATOM_NO_WIDTH_NEG: |
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1843 STRCPY(code, "NFA_PREV_ATOM_NO_WIDTH_NEG"); break; |
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1844 case NFA_PREV_ATOM_JUST_BEFORE: |
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1845 STRCPY(code, "NFA_PREV_ATOM_JUST_BEFORE"); break; |
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1846 case NFA_PREV_ATOM_JUST_BEFORE_NEG: |
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1847 STRCPY(code, "NFA_PREV_ATOM_JUST_BEFORE_NEG"); break; |
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1848 case NFA_NOPEN: STRCPY(code, "NFA_NOPEN"); break; |
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1849 case NFA_NCLOSE: STRCPY(code, "NFA_NCLOSE"); break; |
4444 | 1850 case NFA_START_INVISIBLE: STRCPY(code, "NFA_START_INVISIBLE"); break; |
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1851 case NFA_START_INVISIBLE_BEFORE: |
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1852 STRCPY(code, "NFA_START_INVISIBLE_BEFORE"); break; |
4444 | 1853 case NFA_END_INVISIBLE: STRCPY(code, "NFA_END_INVISIBLE"); break; |
1854 | |
1855 case NFA_COMPOSING: STRCPY(code, "NFA_COMPOSING"); break; | |
1856 case NFA_END_COMPOSING: STRCPY(code, "NFA_END_COMPOSING"); break; | |
1857 | |
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1858 case NFA_MOPEN: |
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1859 case NFA_MOPEN1: |
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1860 case NFA_MOPEN2: |
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1861 case NFA_MOPEN3: |
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1862 case NFA_MOPEN4: |
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1863 case NFA_MOPEN5: |
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1864 case NFA_MOPEN6: |
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1865 case NFA_MOPEN7: |
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1866 case NFA_MOPEN8: |
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1867 case NFA_MOPEN9: |
4444 | 1868 STRCPY(code, "NFA_MOPEN(x)"); |
1869 code[10] = c - NFA_MOPEN + '0'; | |
1870 break; | |
4686
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1871 case NFA_MCLOSE: |
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1872 case NFA_MCLOSE1: |
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1873 case NFA_MCLOSE2: |
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1874 case NFA_MCLOSE3: |
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1875 case NFA_MCLOSE4: |
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1876 case NFA_MCLOSE5: |
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1877 case NFA_MCLOSE6: |
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1878 case NFA_MCLOSE7: |
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1879 case NFA_MCLOSE8: |
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1880 case NFA_MCLOSE9: |
4444 | 1881 STRCPY(code, "NFA_MCLOSE(x)"); |
1882 code[11] = c - NFA_MCLOSE + '0'; | |
1883 break; | |
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1884 #ifdef FEAT_SYN_HL |
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1885 case NFA_ZOPEN: |
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1886 case NFA_ZOPEN1: |
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1887 case NFA_ZOPEN2: |
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1888 case NFA_ZOPEN3: |
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1889 case NFA_ZOPEN4: |
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1890 case NFA_ZOPEN5: |
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1891 case NFA_ZOPEN6: |
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1892 case NFA_ZOPEN7: |
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1893 case NFA_ZOPEN8: |
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1894 case NFA_ZOPEN9: |
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1895 STRCPY(code, "NFA_ZOPEN(x)"); |
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1896 code[10] = c - NFA_ZOPEN + '0'; |
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1897 break; |
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1898 case NFA_ZCLOSE: |
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1899 case NFA_ZCLOSE1: |
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1900 case NFA_ZCLOSE2: |
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1901 case NFA_ZCLOSE3: |
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1902 case NFA_ZCLOSE4: |
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1903 case NFA_ZCLOSE5: |
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1904 case NFA_ZCLOSE6: |
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1905 case NFA_ZCLOSE7: |
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1906 case NFA_ZCLOSE8: |
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1907 case NFA_ZCLOSE9: |
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1908 STRCPY(code, "NFA_ZCLOSE(x)"); |
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1909 code[11] = c - NFA_ZCLOSE + '0'; |
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1910 break; |
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1911 #endif |
4444 | 1912 case NFA_EOL: STRCPY(code, "NFA_EOL "); break; |
1913 case NFA_BOL: STRCPY(code, "NFA_BOL "); break; | |
1914 case NFA_EOW: STRCPY(code, "NFA_EOW "); break; | |
1915 case NFA_BOW: STRCPY(code, "NFA_BOW "); break; | |
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1916 case NFA_EOF: STRCPY(code, "NFA_EOF "); break; |
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1917 case NFA_BOF: STRCPY(code, "NFA_BOF "); break; |
4444 | 1918 case NFA_STAR: STRCPY(code, "NFA_STAR "); break; |
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1919 case NFA_STAR_NONGREEDY: STRCPY(code, "NFA_STAR_NONGREEDY "); break; |
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1920 case NFA_QUEST: STRCPY(code, "NFA_QUEST"); break; |
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1921 case NFA_QUEST_NONGREEDY: STRCPY(code, "NFA_QUEST_NON_GREEDY"); break; |
4444 | 1922 case NFA_NOT: STRCPY(code, "NFA_NOT "); break; |
1923 case NFA_SKIP_CHAR: STRCPY(code, "NFA_SKIP_CHAR"); break; | |
1924 case NFA_OR: STRCPY(code, "NFA_OR"); break; | |
1925 case NFA_END_NEG_RANGE: STRCPY(code, "NFA_END_NEG_RANGE"); break; | |
1926 case NFA_CLASS_ALNUM: STRCPY(code, "NFA_CLASS_ALNUM"); break; | |
1927 case NFA_CLASS_ALPHA: STRCPY(code, "NFA_CLASS_ALPHA"); break; | |
1928 case NFA_CLASS_BLANK: STRCPY(code, "NFA_CLASS_BLANK"); break; | |
1929 case NFA_CLASS_CNTRL: STRCPY(code, "NFA_CLASS_CNTRL"); break; | |
1930 case NFA_CLASS_DIGIT: STRCPY(code, "NFA_CLASS_DIGIT"); break; | |
1931 case NFA_CLASS_GRAPH: STRCPY(code, "NFA_CLASS_GRAPH"); break; | |
1932 case NFA_CLASS_LOWER: STRCPY(code, "NFA_CLASS_LOWER"); break; | |
1933 case NFA_CLASS_PRINT: STRCPY(code, "NFA_CLASS_PRINT"); break; | |
1934 case NFA_CLASS_PUNCT: STRCPY(code, "NFA_CLASS_PUNCT"); break; | |
1935 case NFA_CLASS_SPACE: STRCPY(code, "NFA_CLASS_SPACE"); break; | |
1936 case NFA_CLASS_UPPER: STRCPY(code, "NFA_CLASS_UPPER"); break; | |
1937 case NFA_CLASS_XDIGIT: STRCPY(code, "NFA_CLASS_XDIGIT"); break; | |
1938 case NFA_CLASS_TAB: STRCPY(code, "NFA_CLASS_TAB"); break; | |
1939 case NFA_CLASS_RETURN: STRCPY(code, "NFA_CLASS_RETURN"); break; | |
1940 case NFA_CLASS_BACKSPACE: STRCPY(code, "NFA_CLASS_BACKSPACE"); break; | |
1941 case NFA_CLASS_ESCAPE: STRCPY(code, "NFA_CLASS_ESCAPE"); break; | |
1942 | |
1943 case NFA_ANY: STRCPY(code, "NFA_ANY"); break; | |
1944 case NFA_IDENT: STRCPY(code, "NFA_IDENT"); break; | |
1945 case NFA_SIDENT:STRCPY(code, "NFA_SIDENT"); break; | |
1946 case NFA_KWORD: STRCPY(code, "NFA_KWORD"); break; | |
1947 case NFA_SKWORD:STRCPY(code, "NFA_SKWORD"); break; | |
1948 case NFA_FNAME: STRCPY(code, "NFA_FNAME"); break; | |
1949 case NFA_SFNAME:STRCPY(code, "NFA_SFNAME"); break; | |
1950 case NFA_PRINT: STRCPY(code, "NFA_PRINT"); break; | |
1951 case NFA_SPRINT:STRCPY(code, "NFA_SPRINT"); break; | |
1952 case NFA_WHITE: STRCPY(code, "NFA_WHITE"); break; | |
1953 case NFA_NWHITE:STRCPY(code, "NFA_NWHITE"); break; | |
1954 case NFA_DIGIT: STRCPY(code, "NFA_DIGIT"); break; | |
1955 case NFA_NDIGIT:STRCPY(code, "NFA_NDIGIT"); break; | |
1956 case NFA_HEX: STRCPY(code, "NFA_HEX"); break; | |
1957 case NFA_NHEX: STRCPY(code, "NFA_NHEX"); break; | |
1958 case NFA_OCTAL: STRCPY(code, "NFA_OCTAL"); break; | |
1959 case NFA_NOCTAL:STRCPY(code, "NFA_NOCTAL"); break; | |
1960 case NFA_WORD: STRCPY(code, "NFA_WORD"); break; | |
1961 case NFA_NWORD: STRCPY(code, "NFA_NWORD"); break; | |
1962 case NFA_HEAD: STRCPY(code, "NFA_HEAD"); break; | |
1963 case NFA_NHEAD: STRCPY(code, "NFA_NHEAD"); break; | |
1964 case NFA_ALPHA: STRCPY(code, "NFA_ALPHA"); break; | |
1965 case NFA_NALPHA:STRCPY(code, "NFA_NALPHA"); break; | |
1966 case NFA_LOWER: STRCPY(code, "NFA_LOWER"); break; | |
1967 case NFA_NLOWER:STRCPY(code, "NFA_NLOWER"); break; | |
1968 case NFA_UPPER: STRCPY(code, "NFA_UPPER"); break; | |
1969 case NFA_NUPPER:STRCPY(code, "NFA_NUPPER"); break; | |
1970 | |
1971 default: | |
1972 STRCPY(code, "CHAR(x)"); | |
1973 code[5] = c; | |
1974 } | |
1975 | |
1976 if (addnl == TRUE) | |
1977 STRCAT(code, " + NEWLINE "); | |
1978 | |
1979 } | |
1980 | |
1981 #ifdef ENABLE_LOG | |
1982 static FILE *log_fd; | |
1983 | |
1984 /* | |
1985 * Print the postfix notation of the current regexp. | |
1986 */ | |
1987 static void | |
1988 nfa_postfix_dump(expr, retval) | |
1989 char_u *expr; | |
1990 int retval; | |
1991 { | |
1992 int *p; | |
1993 FILE *f; | |
1994 | |
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1995 f = fopen(NFA_REGEXP_DUMP_LOG, "a"); |
4444 | 1996 if (f != NULL) |
1997 { | |
1998 fprintf(f, "\n-------------------------\n"); | |
1999 if (retval == FAIL) | |
2000 fprintf(f, ">>> NFA engine failed ... \n"); | |
2001 else if (retval == OK) | |
2002 fprintf(f, ">>> NFA engine succeeded !\n"); | |
2003 fprintf(f, "Regexp: \"%s\"\nPostfix notation (char): \"", expr); | |
4464 | 2004 for (p = post_start; *p && p < post_end; p++) |
4444 | 2005 { |
2006 nfa_set_code(*p); | |
2007 fprintf(f, "%s, ", code); | |
2008 } | |
2009 fprintf(f, "\"\nPostfix notation (int): "); | |
4464 | 2010 for (p = post_start; *p && p < post_end; p++) |
4444 | 2011 fprintf(f, "%d ", *p); |
2012 fprintf(f, "\n\n"); | |
2013 fclose(f); | |
2014 } | |
2015 } | |
2016 | |
2017 /* | |
2018 * Print the NFA starting with a root node "state". | |
2019 */ | |
2020 static void | |
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2021 nfa_print_state(debugf, state) |
4444 | 2022 FILE *debugf; |
2023 nfa_state_T *state; | |
2024 { | |
4533
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2025 garray_T indent; |
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2026 |
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2027 ga_init2(&indent, 1, 64); |
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2028 ga_append(&indent, '\0'); |
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2029 nfa_print_state2(debugf, state, &indent); |
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2030 ga_clear(&indent); |
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2031 } |
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2032 |
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2033 static void |
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2034 nfa_print_state2(debugf, state, indent) |
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2035 FILE *debugf; |
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2036 nfa_state_T *state; |
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2037 garray_T *indent; |
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2038 { |
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2039 char_u *p; |
4444 | 2040 |
2041 if (state == NULL) | |
2042 return; | |
2043 | |
2044 fprintf(debugf, "(%2d)", abs(state->id)); | |
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2045 |
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2046 /* Output indent */ |
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2047 p = (char_u *)indent->ga_data; |
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2048 if (indent->ga_len >= 3) |
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2049 { |
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2050 int last = indent->ga_len - 3; |
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2051 char_u save[2]; |
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2052 |
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2053 STRNCPY(save, &p[last], 2); |
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2054 STRNCPY(&p[last], "+-", 2); |
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2055 fprintf(debugf, " %s", p); |
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2056 STRNCPY(&p[last], save, 2); |
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2057 } |
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2058 else |
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2059 fprintf(debugf, " %s", p); |
4444 | 2060 |
2061 nfa_set_code(state->c); | |
4533
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2062 fprintf(debugf, "%s%s (%d) (id=%d)\n", |
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2063 state->negated ? "NOT " : "", code, state->c, abs(state->id)); |
4444 | 2064 if (state->id < 0) |
2065 return; | |
2066 | |
2067 state->id = abs(state->id) * -1; | |
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2068 |
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2069 /* grow indent for state->out */ |
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2070 indent->ga_len -= 1; |
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2071 if (state->out1) |
4537
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2072 ga_concat(indent, (char_u *)"| "); |
4533
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2073 else |
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2074 ga_concat(indent, (char_u *)" "); |
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2075 ga_append(indent, '\0'); |
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2076 |
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2077 nfa_print_state2(debugf, state->out, indent); |
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2078 |
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2079 /* replace last part of indent for state->out1 */ |
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2080 indent->ga_len -= 3; |
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2081 ga_concat(indent, (char_u *)" "); |
4533
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2082 ga_append(indent, '\0'); |
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2083 |
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2084 nfa_print_state2(debugf, state->out1, indent); |
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2085 |
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2086 /* shrink indent */ |
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2087 indent->ga_len -= 3; |
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2088 ga_append(indent, '\0'); |
4444 | 2089 } |
2090 | |
2091 /* | |
2092 * Print the NFA state machine. | |
2093 */ | |
2094 static void | |
2095 nfa_dump(prog) | |
2096 nfa_regprog_T *prog; | |
2097 { | |
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2098 FILE *debugf = fopen(NFA_REGEXP_DUMP_LOG, "a"); |
4444 | 2099 |
2100 if (debugf != NULL) | |
2101 { | |
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2102 nfa_print_state(debugf, prog->start); |
4444 | 2103 fclose(debugf); |
2104 } | |
2105 } | |
2106 #endif /* ENABLE_LOG */ | |
2107 #endif /* DEBUG */ | |
2108 | |
2109 /* | |
2110 * Parse r.e. @expr and convert it into postfix form. | |
2111 * Return the postfix string on success, NULL otherwise. | |
2112 */ | |
2113 static int * | |
2114 re2post() | |
2115 { | |
2116 if (nfa_reg(REG_NOPAREN) == FAIL) | |
2117 return NULL; | |
2118 EMIT(NFA_MOPEN); | |
2119 return post_start; | |
2120 } | |
2121 | |
2122 /* NB. Some of the code below is inspired by Russ's. */ | |
2123 | |
2124 /* | |
2125 * Represents an NFA state plus zero or one or two arrows exiting. | |
2126 * if c == MATCH, no arrows out; matching state. | |
2127 * If c == SPLIT, unlabeled arrows to out and out1 (if != NULL). | |
2128 * If c < 256, labeled arrow with character c to out. | |
2129 */ | |
2130 | |
2131 static nfa_state_T *state_ptr; /* points to nfa_prog->state */ | |
2132 | |
2133 /* | |
2134 * Allocate and initialize nfa_state_T. | |
2135 */ | |
2136 static nfa_state_T * | |
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2137 alloc_state(c, out, out1) |
4444 | 2138 int c; |
2139 nfa_state_T *out; | |
2140 nfa_state_T *out1; | |
2141 { | |
2142 nfa_state_T *s; | |
2143 | |
2144 if (istate >= nstate) | |
2145 return NULL; | |
2146 | |
2147 s = &state_ptr[istate++]; | |
2148 | |
2149 s->c = c; | |
2150 s->out = out; | |
2151 s->out1 = out1; | |
2152 | |
2153 s->id = istate; | |
2154 s->lastlist = 0; | |
2155 s->negated = FALSE; | |
2156 | |
2157 return s; | |
2158 } | |
2159 | |
2160 /* | |
2161 * A partially built NFA without the matching state filled in. | |
2162 * Frag_T.start points at the start state. | |
2163 * Frag_T.out is a list of places that need to be set to the | |
2164 * next state for this fragment. | |
2165 */ | |
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2166 |
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2167 /* Since the out pointers in the list are always |
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2168 * uninitialized, we use the pointers themselves |
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2169 * as storage for the Ptrlists. */ |
4444 | 2170 typedef union Ptrlist Ptrlist; |
4555
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2171 union Ptrlist |
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2172 { |
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2173 Ptrlist *next; |
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2174 nfa_state_T *s; |
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2175 }; |
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2176 |
4444 | 2177 struct Frag |
2178 { | |
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2179 nfa_state_T *start; |
4444 | 2180 Ptrlist *out; |
2181 }; | |
2182 typedef struct Frag Frag_T; | |
2183 | |
2184 static Frag_T frag __ARGS((nfa_state_T *start, Ptrlist *out)); | |
2185 static Ptrlist *list1 __ARGS((nfa_state_T **outp)); | |
2186 static void patch __ARGS((Ptrlist *l, nfa_state_T *s)); | |
2187 static Ptrlist *append __ARGS((Ptrlist *l1, Ptrlist *l2)); | |
2188 static void st_push __ARGS((Frag_T s, Frag_T **p, Frag_T *stack_end)); | |
2189 static Frag_T st_pop __ARGS((Frag_T **p, Frag_T *stack)); | |
2190 | |
2191 /* | |
4456 | 2192 * Initialize a Frag_T struct and return it. |
4444 | 2193 */ |
2194 static Frag_T | |
2195 frag(start, out) | |
2196 nfa_state_T *start; | |
2197 Ptrlist *out; | |
2198 { | |
4456 | 2199 Frag_T n; |
2200 | |
2201 n.start = start; | |
2202 n.out = out; | |
4444 | 2203 return n; |
2204 } | |
2205 | |
2206 /* | |
2207 * Create singleton list containing just outp. | |
2208 */ | |
2209 static Ptrlist * | |
2210 list1(outp) | |
2211 nfa_state_T **outp; | |
2212 { | |
2213 Ptrlist *l; | |
2214 | |
2215 l = (Ptrlist *)outp; | |
2216 l->next = NULL; | |
2217 return l; | |
2218 } | |
2219 | |
2220 /* | |
2221 * Patch the list of states at out to point to start. | |
2222 */ | |
2223 static void | |
2224 patch(l, s) | |
2225 Ptrlist *l; | |
2226 nfa_state_T *s; | |
2227 { | |
2228 Ptrlist *next; | |
2229 | |
2230 for (; l; l = next) | |
2231 { | |
2232 next = l->next; | |
2233 l->s = s; | |
2234 } | |
2235 } | |
2236 | |
2237 | |
2238 /* | |
2239 * Join the two lists l1 and l2, returning the combination. | |
2240 */ | |
2241 static Ptrlist * | |
2242 append(l1, l2) | |
2243 Ptrlist *l1; | |
2244 Ptrlist *l2; | |
2245 { | |
2246 Ptrlist *oldl1; | |
2247 | |
2248 oldl1 = l1; | |
2249 while (l1->next) | |
2250 l1 = l1->next; | |
2251 l1->next = l2; | |
2252 return oldl1; | |
2253 } | |
2254 | |
2255 /* | |
2256 * Stack used for transforming postfix form into NFA. | |
2257 */ | |
2258 static Frag_T empty; | |
2259 | |
2260 static void | |
2261 st_error(postfix, end, p) | |
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2262 int *postfix UNUSED; |
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2263 int *end UNUSED; |
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2264 int *p UNUSED; |
4444 | 2265 { |
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2266 #ifdef NFA_REGEXP_ERROR_LOG |
4444 | 2267 FILE *df; |
2268 int *p2; | |
2269 | |
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2270 df = fopen(NFA_REGEXP_ERROR_LOG, "a"); |
4444 | 2271 if (df) |
2272 { | |
2273 fprintf(df, "Error popping the stack!\n"); | |
2274 #ifdef DEBUG | |
2275 fprintf(df, "Current regexp is \"%s\"\n", nfa_regengine.expr); | |
2276 #endif | |
2277 fprintf(df, "Postfix form is: "); | |
2278 #ifdef DEBUG | |
2279 for (p2 = postfix; p2 < end; p2++) | |
2280 { | |
2281 nfa_set_code(*p2); | |
2282 fprintf(df, "%s, ", code); | |
2283 } | |
2284 nfa_set_code(*p); | |
2285 fprintf(df, "\nCurrent position is: "); | |
2286 for (p2 = postfix; p2 <= p; p2 ++) | |
2287 { | |
2288 nfa_set_code(*p2); | |
2289 fprintf(df, "%s, ", code); | |
2290 } | |
2291 #else | |
2292 for (p2 = postfix; p2 < end; p2++) | |
2293 { | |
2294 fprintf(df, "%d, ", *p2); | |
2295 } | |
2296 fprintf(df, "\nCurrent position is: "); | |
2297 for (p2 = postfix; p2 <= p; p2 ++) | |
2298 { | |
2299 fprintf(df, "%d, ", *p2); | |
2300 } | |
2301 #endif | |
2302 fprintf(df, "\n--------------------------\n"); | |
2303 fclose(df); | |
2304 } | |
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2305 #endif |
4444 | 2306 EMSG(_("E874: (NFA) Could not pop the stack !")); |
2307 } | |
2308 | |
2309 /* | |
2310 * Push an item onto the stack. | |
2311 */ | |
2312 static void | |
2313 st_push(s, p, stack_end) | |
2314 Frag_T s; | |
2315 Frag_T **p; | |
2316 Frag_T *stack_end; | |
2317 { | |
2318 Frag_T *stackp = *p; | |
2319 | |
2320 if (stackp >= stack_end) | |
2321 return; | |
2322 *stackp = s; | |
2323 *p = *p + 1; | |
2324 } | |
2325 | |
2326 /* | |
2327 * Pop an item from the stack. | |
2328 */ | |
2329 static Frag_T | |
2330 st_pop(p, stack) | |
2331 Frag_T **p; | |
2332 Frag_T *stack; | |
2333 { | |
2334 Frag_T *stackp; | |
2335 | |
2336 *p = *p - 1; | |
2337 stackp = *p; | |
2338 if (stackp < stack) | |
2339 return empty; | |
2340 return **p; | |
2341 } | |
2342 | |
2343 /* | |
2344 * Convert a postfix form into its equivalent NFA. | |
2345 * Return the NFA start state on success, NULL otherwise. | |
2346 */ | |
2347 static nfa_state_T * | |
2348 post2nfa(postfix, end, nfa_calc_size) | |
2349 int *postfix; | |
2350 int *end; | |
2351 int nfa_calc_size; | |
2352 { | |
2353 int *p; | |
2354 int mopen; | |
2355 int mclose; | |
2356 Frag_T *stack = NULL; | |
2357 Frag_T *stackp = NULL; | |
2358 Frag_T *stack_end = NULL; | |
2359 Frag_T e1; | |
2360 Frag_T e2; | |
2361 Frag_T e; | |
2362 nfa_state_T *s; | |
2363 nfa_state_T *s1; | |
2364 nfa_state_T *matchstate; | |
4484 | 2365 nfa_state_T *ret = NULL; |
4444 | 2366 |
2367 if (postfix == NULL) | |
2368 return NULL; | |
2369 | |
4456 | 2370 #define PUSH(s) st_push((s), &stackp, stack_end) |
4444 | 2371 #define POP() st_pop(&stackp, stack); \ |
2372 if (stackp < stack) \ | |
2373 { \ | |
2374 st_error(postfix, end, p); \ | |
2375 return NULL; \ | |
2376 } | |
2377 | |
2378 if (nfa_calc_size == FALSE) | |
2379 { | |
2380 /* Allocate space for the stack. Max states on the stack : nstate */ | |
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2381 stack = (Frag_T *)lalloc((nstate + 1) * sizeof(Frag_T), TRUE); |
4444 | 2382 stackp = stack; |
4462 | 2383 stack_end = stack + (nstate + 1); |
4444 | 2384 } |
2385 | |
2386 for (p = postfix; p < end; ++p) | |
2387 { | |
2388 switch (*p) | |
2389 { | |
2390 case NFA_CONCAT: | |
2391 /* Catenation. | |
2392 * Pay attention: this operator does not exist | |
2393 * in the r.e. itself (it is implicit, really). | |
2394 * It is added when r.e. is translated to postfix | |
2395 * form in re2post(). | |
2396 * | |
2397 * No new state added here. */ | |
2398 if (nfa_calc_size == TRUE) | |
2399 { | |
4458 | 2400 /* nstate += 0; */ |
4444 | 2401 break; |
2402 } | |
2403 e2 = POP(); | |
2404 e1 = POP(); | |
2405 patch(e1.out, e2.start); | |
2406 PUSH(frag(e1.start, e2.out)); | |
2407 break; | |
2408 | |
2409 case NFA_NOT: | |
2410 /* Negation of a character */ | |
2411 if (nfa_calc_size == TRUE) | |
2412 { | |
4458 | 2413 /* nstate += 0; */ |
4444 | 2414 break; |
2415 } | |
2416 e1 = POP(); | |
2417 e1.start->negated = TRUE; | |
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2418 #ifdef FEAT_MBYTE |
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2419 if (e1.start->c == NFA_COMPOSING) |
4444 | 2420 e1.start->out1->negated = TRUE; |
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2421 #endif |
4444 | 2422 PUSH(e1); |
2423 break; | |
2424 | |
2425 case NFA_OR: | |
2426 /* Alternation */ | |
2427 if (nfa_calc_size == TRUE) | |
2428 { | |
4458 | 2429 nstate++; |
4444 | 2430 break; |
2431 } | |
2432 e2 = POP(); | |
2433 e1 = POP(); | |
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2434 s = alloc_state(NFA_SPLIT, e1.start, e2.start); |
4444 | 2435 if (s == NULL) |
4484 | 2436 goto theend; |
4444 | 2437 PUSH(frag(s, append(e1.out, e2.out))); |
2438 break; | |
2439 | |
2440 case NFA_STAR: | |
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2441 /* Zero or more, prefer more */ |
4444 | 2442 if (nfa_calc_size == TRUE) |
2443 { | |
4458 | 2444 nstate++; |
4444 | 2445 break; |
2446 } | |
2447 e = POP(); | |
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2448 s = alloc_state(NFA_SPLIT, e.start, NULL); |
4444 | 2449 if (s == NULL) |
4484 | 2450 goto theend; |
4444 | 2451 patch(e.out, s); |
2452 PUSH(frag(s, list1(&s->out1))); | |
2453 break; | |
2454 | |
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2455 case NFA_STAR_NONGREEDY: |
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2456 /* Zero or more, prefer zero */ |
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2457 if (nfa_calc_size == TRUE) |
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2458 { |
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2459 nstate++; |
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2460 break; |
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2461 } |
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2462 e = POP(); |
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2463 s = alloc_state(NFA_SPLIT, NULL, e.start); |
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2464 if (s == NULL) |
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2465 goto theend; |
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2466 patch(e.out, s); |
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2467 PUSH(frag(s, list1(&s->out))); |
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2468 break; |
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2469 |
4444 | 2470 case NFA_QUEST: |
2471 /* one or zero atoms=> greedy match */ | |
2472 if (nfa_calc_size == TRUE) | |
2473 { | |
4458 | 2474 nstate++; |
4444 | 2475 break; |
2476 } | |
2477 e = POP(); | |
4696
ed4e689bbea1
updated for version 7.3.1095
Bram Moolenaar <bram@vim.org>
parents:
4694
diff
changeset
|
2478 s = alloc_state(NFA_SPLIT, e.start, NULL); |
4444 | 2479 if (s == NULL) |
4484 | 2480 goto theend; |
4444 | 2481 PUSH(frag(s, append(e.out, list1(&s->out1)))); |
2482 break; | |
2483 | |
2484 case NFA_QUEST_NONGREEDY: | |
2485 /* zero or one atoms => non-greedy match */ | |
2486 if (nfa_calc_size == TRUE) | |
2487 { | |
4458 | 2488 nstate++; |
4444 | 2489 break; |
2490 } | |
2491 e = POP(); | |
4696
ed4e689bbea1
updated for version 7.3.1095
Bram Moolenaar <bram@vim.org>
parents:
4694
diff
changeset
|
2492 s = alloc_state(NFA_SPLIT, NULL, e.start); |
4444 | 2493 if (s == NULL) |
4484 | 2494 goto theend; |
4444 | 2495 PUSH(frag(s, append(e.out, list1(&s->out)))); |
2496 break; | |
2497 | |
2498 case NFA_SKIP_CHAR: | |
2499 /* Symbol of 0-length, Used in a repetition | |
2500 * with max/min count of 0 */ | |
2501 if (nfa_calc_size == TRUE) | |
2502 { | |
4458 | 2503 nstate++; |
4444 | 2504 break; |
2505 } | |
4696
ed4e689bbea1
updated for version 7.3.1095
Bram Moolenaar <bram@vim.org>
parents:
4694
diff
changeset
|
2506 s = alloc_state(NFA_SKIP_CHAR, NULL, NULL); |
4444 | 2507 if (s == NULL) |
4484 | 2508 goto theend; |
4444 | 2509 PUSH(frag(s, list1(&s->out))); |
2510 break; | |
2511 | |
2512 case NFA_PREV_ATOM_NO_WIDTH: | |
4661
0dce3d812e7a
updated for version 7.3.1078
Bram Moolenaar <bram@vim.org>
parents:
4657
diff
changeset
|
2513 case NFA_PREV_ATOM_NO_WIDTH_NEG: |
4682
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
2514 case NFA_PREV_ATOM_JUST_BEFORE: |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
2515 case NFA_PREV_ATOM_JUST_BEFORE_NEG: |
4657
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
2516 /* 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
|
2517 * 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
|
2518 * The \@<= operator: match for the preceding atom. |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
2519 * The \@<! operator: no match for the preceding atom. |
4444 | 2520 * 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
|
2521 * END_INVISIBLE, similarly to MOPEN. */ |
4444 | 2522 |
2523 if (nfa_calc_size == TRUE) | |
2524 { | |
2525 nstate += 2; | |
2526 break; | |
2527 } | |
2528 e = POP(); | |
4696
ed4e689bbea1
updated for version 7.3.1095
Bram Moolenaar <bram@vim.org>
parents:
4694
diff
changeset
|
2529 s1 = alloc_state(NFA_END_INVISIBLE, NULL, NULL); |
4444 | 2530 if (s1 == NULL) |
4484 | 2531 goto theend; |
4444 | 2532 patch(e.out, s1); |
2533 | |
4696
ed4e689bbea1
updated for version 7.3.1095
Bram Moolenaar <bram@vim.org>
parents:
4694
diff
changeset
|
2534 s = alloc_state(NFA_START_INVISIBLE, e.start, s1); |
4444 | 2535 if (s == NULL) |
4484 | 2536 goto theend; |
4682
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
2537 if (*p == NFA_PREV_ATOM_NO_WIDTH_NEG |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
2538 || *p == NFA_PREV_ATOM_JUST_BEFORE_NEG) |
4661
0dce3d812e7a
updated for version 7.3.1078
Bram Moolenaar <bram@vim.org>
parents:
4657
diff
changeset
|
2539 { |
0dce3d812e7a
updated for version 7.3.1078
Bram Moolenaar <bram@vim.org>
parents:
4657
diff
changeset
|
2540 s->negated = TRUE; |
0dce3d812e7a
updated for version 7.3.1078
Bram Moolenaar <bram@vim.org>
parents:
4657
diff
changeset
|
2541 s1->negated = TRUE; |
0dce3d812e7a
updated for version 7.3.1078
Bram Moolenaar <bram@vim.org>
parents:
4657
diff
changeset
|
2542 } |
4682
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
2543 if (*p == NFA_PREV_ATOM_JUST_BEFORE |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
2544 || *p == NFA_PREV_ATOM_JUST_BEFORE_NEG) |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
2545 { |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
2546 s->val = *++p; /* get the count */ |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
2547 ++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
|
2548 } |
4661
0dce3d812e7a
updated for version 7.3.1078
Bram Moolenaar <bram@vim.org>
parents:
4657
diff
changeset
|
2549 |
4444 | 2550 PUSH(frag(s, list1(&s1->out))); |
2551 break; | |
2552 | |
4531
1be43c095aff
updated for version 7.3.1013
Bram Moolenaar <bram@vim.org>
parents:
4529
diff
changeset
|
2553 #ifdef FEAT_MBYTE |
4527
55bcaa1d2749
updated for version 7.3.1011
Bram Moolenaar <bram@vim.org>
parents:
4525
diff
changeset
|
2554 case NFA_COMPOSING: /* char with composing char */ |
55bcaa1d2749
updated for version 7.3.1011
Bram Moolenaar <bram@vim.org>
parents:
4525
diff
changeset
|
2555 #if 0 |
55bcaa1d2749
updated for version 7.3.1011
Bram Moolenaar <bram@vim.org>
parents:
4525
diff
changeset
|
2556 /* TODO */ |
55bcaa1d2749
updated for version 7.3.1011
Bram Moolenaar <bram@vim.org>
parents:
4525
diff
changeset
|
2557 if (regflags & RF_ICOMBINE) |
55bcaa1d2749
updated for version 7.3.1011
Bram Moolenaar <bram@vim.org>
parents:
4525
diff
changeset
|
2558 { |
4529
432a6b8c7d93
updated for version 7.3.1012
Bram Moolenaar <bram@vim.org>
parents:
4527
diff
changeset
|
2559 /* use the base character only */ |
4527
55bcaa1d2749
updated for version 7.3.1011
Bram Moolenaar <bram@vim.org>
parents:
4525
diff
changeset
|
2560 } |
55bcaa1d2749
updated for version 7.3.1011
Bram Moolenaar <bram@vim.org>
parents:
4525
diff
changeset
|
2561 #endif |
55bcaa1d2749
updated for version 7.3.1011
Bram Moolenaar <bram@vim.org>
parents:
4525
diff
changeset
|
2562 /* FALLTHROUGH */ |
4531
1be43c095aff
updated for version 7.3.1013
Bram Moolenaar <bram@vim.org>
parents:
4529
diff
changeset
|
2563 #endif |
4527
55bcaa1d2749
updated for version 7.3.1011
Bram Moolenaar <bram@vim.org>
parents:
4525
diff
changeset
|
2564 |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2565 case NFA_MOPEN: /* \( \) Submatch */ |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2566 case NFA_MOPEN1: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2567 case NFA_MOPEN2: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2568 case NFA_MOPEN3: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2569 case NFA_MOPEN4: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2570 case NFA_MOPEN5: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2571 case NFA_MOPEN6: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2572 case NFA_MOPEN7: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2573 case NFA_MOPEN8: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2574 case NFA_MOPEN9: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2575 #ifdef FEAT_SYN_HL |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2576 case NFA_ZOPEN: /* \z( \) Submatch */ |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2577 case NFA_ZOPEN1: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2578 case NFA_ZOPEN2: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2579 case NFA_ZOPEN3: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2580 case NFA_ZOPEN4: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2581 case NFA_ZOPEN5: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2582 case NFA_ZOPEN6: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2583 case NFA_ZOPEN7: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2584 case NFA_ZOPEN8: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2585 case NFA_ZOPEN9: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2586 #endif |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2587 case NFA_NOPEN: /* \%( \) "Invisible Submatch" */ |
4444 | 2588 if (nfa_calc_size == TRUE) |
2589 { | |
2590 nstate += 2; | |
2591 break; | |
2592 } | |
2593 | |
2594 mopen = *p; | |
2595 switch (*p) | |
2596 { | |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2597 case NFA_NOPEN: mclose = NFA_NCLOSE; break; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2598 #ifdef FEAT_SYN_HL |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2599 case NFA_ZOPEN: mclose = NFA_ZCLOSE; break; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2600 case NFA_ZOPEN1: mclose = NFA_ZCLOSE1; break; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2601 case NFA_ZOPEN2: mclose = NFA_ZCLOSE2; break; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2602 case NFA_ZOPEN3: mclose = NFA_ZCLOSE3; break; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2603 case NFA_ZOPEN4: mclose = NFA_ZCLOSE4; break; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2604 case NFA_ZOPEN5: mclose = NFA_ZCLOSE5; break; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2605 case NFA_ZOPEN6: mclose = NFA_ZCLOSE6; break; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2606 case NFA_ZOPEN7: mclose = NFA_ZCLOSE7; break; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2607 case NFA_ZOPEN8: mclose = NFA_ZCLOSE8; break; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2608 case NFA_ZOPEN9: mclose = NFA_ZCLOSE9; break; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2609 #endif |
4531
1be43c095aff
updated for version 7.3.1013
Bram Moolenaar <bram@vim.org>
parents:
4529
diff
changeset
|
2610 #ifdef FEAT_MBYTE |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2611 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
|
2612 #endif |
4444 | 2613 default: |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2614 /* NFA_MOPEN, NFA_MOPEN1 .. NFA_MOPEN9 */ |
4444 | 2615 mclose = *p + NSUBEXP; |
2616 break; | |
2617 } | |
2618 | |
2619 /* Allow "NFA_MOPEN" as a valid postfix representation for | |
2620 * the empty regexp "". In this case, the NFA will be | |
2621 * NFA_MOPEN -> NFA_MCLOSE. Note that this also allows | |
2622 * empty groups of parenthesis, and empty mbyte chars */ | |
2623 if (stackp == stack) | |
2624 { | |
4696
ed4e689bbea1
updated for version 7.3.1095
Bram Moolenaar <bram@vim.org>
parents:
4694
diff
changeset
|
2625 s = alloc_state(mopen, NULL, NULL); |
4444 | 2626 if (s == NULL) |
4484 | 2627 goto theend; |
4696
ed4e689bbea1
updated for version 7.3.1095
Bram Moolenaar <bram@vim.org>
parents:
4694
diff
changeset
|
2628 s1 = alloc_state(mclose, NULL, NULL); |
4444 | 2629 if (s1 == NULL) |
4484 | 2630 goto theend; |
4444 | 2631 patch(list1(&s->out), s1); |
2632 PUSH(frag(s, list1(&s1->out))); | |
2633 break; | |
2634 } | |
2635 | |
2636 /* At least one node was emitted before NFA_MOPEN, so | |
2637 * at least one node will be between NFA_MOPEN and NFA_MCLOSE */ | |
2638 e = POP(); | |
4696
ed4e689bbea1
updated for version 7.3.1095
Bram Moolenaar <bram@vim.org>
parents:
4694
diff
changeset
|
2639 s = alloc_state(mopen, e.start, NULL); /* `(' */ |
4444 | 2640 if (s == NULL) |
4484 | 2641 goto theend; |
4444 | 2642 |
4696
ed4e689bbea1
updated for version 7.3.1095
Bram Moolenaar <bram@vim.org>
parents:
4694
diff
changeset
|
2643 s1 = alloc_state(mclose, NULL, NULL); /* `)' */ |
4444 | 2644 if (s1 == NULL) |
4484 | 2645 goto theend; |
4444 | 2646 patch(e.out, s1); |
2647 | |
4531
1be43c095aff
updated for version 7.3.1013
Bram Moolenaar <bram@vim.org>
parents:
4529
diff
changeset
|
2648 #ifdef FEAT_MBYTE |
4527
55bcaa1d2749
updated for version 7.3.1011
Bram Moolenaar <bram@vim.org>
parents:
4525
diff
changeset
|
2649 if (mopen == NFA_COMPOSING) |
55bcaa1d2749
updated for version 7.3.1011
Bram Moolenaar <bram@vim.org>
parents:
4525
diff
changeset
|
2650 /* COMPOSING->out1 = END_COMPOSING */ |
4444 | 2651 patch(list1(&s->out1), s1); |
4531
1be43c095aff
updated for version 7.3.1013
Bram Moolenaar <bram@vim.org>
parents:
4529
diff
changeset
|
2652 #endif |
4444 | 2653 |
2654 PUSH(frag(s, list1(&s1->out))); | |
2655 break; | |
2656 | |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2657 case NFA_BACKREF1: |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2658 case NFA_BACKREF2: |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2659 case NFA_BACKREF3: |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2660 case NFA_BACKREF4: |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2661 case NFA_BACKREF5: |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2662 case NFA_BACKREF6: |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2663 case NFA_BACKREF7: |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2664 case NFA_BACKREF8: |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2665 case NFA_BACKREF9: |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2666 #ifdef FEAT_SYN_HL |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2667 case NFA_ZREF1: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2668 case NFA_ZREF2: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2669 case NFA_ZREF3: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2670 case NFA_ZREF4: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2671 case NFA_ZREF5: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2672 case NFA_ZREF6: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2673 case NFA_ZREF7: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2674 case NFA_ZREF8: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2675 case NFA_ZREF9: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2676 #endif |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2677 if (nfa_calc_size == TRUE) |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2678 { |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2679 nstate += 2; |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2680 break; |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2681 } |
4696
ed4e689bbea1
updated for version 7.3.1095
Bram Moolenaar <bram@vim.org>
parents:
4694
diff
changeset
|
2682 s = alloc_state(*p, NULL, NULL); |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2683 if (s == NULL) |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2684 goto theend; |
4696
ed4e689bbea1
updated for version 7.3.1095
Bram Moolenaar <bram@vim.org>
parents:
4694
diff
changeset
|
2685 s1 = alloc_state(NFA_SKIP, NULL, NULL); |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2686 if (s1 == NULL) |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2687 goto theend; |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2688 patch(list1(&s->out), s1); |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2689 PUSH(frag(s, list1(&s1->out))); |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2690 break; |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2691 |
4583
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
2692 case NFA_LNUM: |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
2693 case NFA_LNUM_GT: |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
2694 case NFA_LNUM_LT: |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
2695 case NFA_VCOL: |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
2696 case NFA_VCOL_GT: |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
2697 case NFA_VCOL_LT: |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
2698 case NFA_COL: |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
2699 case NFA_COL_GT: |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
2700 case NFA_COL_LT: |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
2701 if (nfa_calc_size == TRUE) |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
2702 { |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
2703 nstate += 1; |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
2704 break; |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
2705 } |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
2706 e1 = POP(); |
4696
ed4e689bbea1
updated for version 7.3.1095
Bram Moolenaar <bram@vim.org>
parents:
4694
diff
changeset
|
2707 s = alloc_state(*p, NULL, NULL); |
4583
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
2708 if (s == NULL) |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
2709 goto theend; |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
2710 s->val = e1.start->c; |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
2711 PUSH(frag(s, list1(&s->out))); |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
2712 break; |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
2713 |
4444 | 2714 case NFA_ZSTART: |
2715 case NFA_ZEND: | |
2716 default: | |
2717 /* Operands */ | |
2718 if (nfa_calc_size == TRUE) | |
2719 { | |
4458 | 2720 nstate++; |
4444 | 2721 break; |
2722 } | |
4696
ed4e689bbea1
updated for version 7.3.1095
Bram Moolenaar <bram@vim.org>
parents:
4694
diff
changeset
|
2723 s = alloc_state(*p, NULL, NULL); |
4444 | 2724 if (s == NULL) |
4484 | 2725 goto theend; |
4444 | 2726 PUSH(frag(s, list1(&s->out))); |
2727 break; | |
2728 | |
2729 } /* switch(*p) */ | |
2730 | |
2731 } /* for(p = postfix; *p; ++p) */ | |
2732 | |
2733 if (nfa_calc_size == TRUE) | |
2734 { | |
4458 | 2735 nstate++; |
4484 | 2736 goto theend; /* Return value when counting size is ignored anyway */ |
4444 | 2737 } |
2738 | |
2739 e = POP(); | |
2740 if (stackp != stack) | |
2741 EMSG_RET_NULL(_("E875: (NFA regexp) (While converting from postfix to NFA), too many states left on stack")); | |
2742 | |
2743 if (istate >= nstate) | |
2744 EMSG_RET_NULL(_("E876: (NFA regexp) Not enough space to store the whole NFA ")); | |
2745 | |
2746 matchstate = &state_ptr[istate++]; /* the match state */ | |
2747 matchstate->c = NFA_MATCH; | |
2748 matchstate->out = matchstate->out1 = NULL; | |
2749 | |
2750 patch(e.out, matchstate); | |
4484 | 2751 ret = e.start; |
2752 | |
2753 theend: | |
2754 vim_free(stack); | |
2755 return ret; | |
4444 | 2756 |
2757 #undef POP1 | |
2758 #undef PUSH1 | |
2759 #undef POP2 | |
2760 #undef PUSH2 | |
2761 #undef POP | |
2762 #undef PUSH | |
2763 } | |
2764 | |
2765 /**************************************************************** | |
2766 * NFA execution code. | |
2767 ****************************************************************/ | |
2768 | |
4563
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
2769 typedef struct |
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
2770 { |
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
2771 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
|
2772 |
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
2773 /* 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
|
2774 union |
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
2775 { |
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
2776 struct multipos |
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
2777 { |
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
2778 lpos_T start; |
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
2779 lpos_T end; |
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
2780 } multi[NSUBEXP]; |
4563
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
2781 struct linepos |
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
2782 { |
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
2783 char_u *start; |
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
2784 char_u *end; |
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
2785 } line[NSUBEXP]; |
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
2786 } list; |
4563
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
2787 } regsub_T; |
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
2788 |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2789 typedef struct |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2790 { |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2791 regsub_T norm; /* \( .. \) matches */ |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2792 #ifdef FEAT_SYN_HL |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2793 regsub_T synt; /* \z( .. \) matches */ |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2794 #endif |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2795 } regsubs_T; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2796 |
4561
4d81fdda8f35
updated for version 7.3.1028
Bram Moolenaar <bram@vim.org>
parents:
4559
diff
changeset
|
2797 /* 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
|
2798 typedef struct |
4444 | 2799 { |
2800 nfa_state_T *state; | |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2801 int count; |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2802 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
|
2803 } nfa_thread_T; |
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
2804 |
4561
4d81fdda8f35
updated for version 7.3.1028
Bram Moolenaar <bram@vim.org>
parents:
4559
diff
changeset
|
2805 /* nfa_list_T contains the alternative NFA execution states. */ |
4444 | 2806 typedef struct |
2807 { | |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2808 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
|
2809 int n; /* nr of states currently in "t" */ |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2810 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
|
2811 int id; /* ID of the list */ |
4539
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
2812 } nfa_list_T; |
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
2813 |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2814 #ifdef ENABLE_LOG |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2815 static void log_subsexpr __ARGS((regsubs_T *subs)); |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2816 static void log_subexpr __ARGS((regsub_T *sub)); |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2817 |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2818 static void |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2819 log_subsexpr(subs) |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2820 regsubs_T *subs; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2821 { |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2822 log_subexpr(&subs->norm); |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2823 # ifdef FEAT_SYN_HL |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2824 log_subexpr(&subs->synt); |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2825 # endif |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2826 } |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2827 |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2828 static void |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2829 log_subexpr(sub) |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2830 regsub_T *sub; |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2831 { |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2832 int j; |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2833 |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2834 for (j = 0; j < sub->in_use; j++) |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2835 if (REG_MULTI) |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2836 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
|
2837 j, |
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
2838 sub->list.multi[j].start.col, |
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
2839 (int)sub->list.multi[j].start.lnum, |
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
2840 sub->list.multi[j].end.col, |
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
2841 (int)sub->list.multi[j].end.lnum); |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2842 else |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2843 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
|
2844 j, |
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
2845 (char *)sub->list.line[j].start, |
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
2846 (char *)sub->list.line[j].end); |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2847 fprintf(log_fd, "\n"); |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2848 } |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2849 #endif |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2850 |
4561
4d81fdda8f35
updated for version 7.3.1028
Bram Moolenaar <bram@vim.org>
parents:
4559
diff
changeset
|
2851 /* 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
|
2852 static int nfa_match; |
4d81fdda8f35
updated for version 7.3.1028
Bram Moolenaar <bram@vim.org>
parents:
4559
diff
changeset
|
2853 |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2854 static void clear_sub __ARGS((regsub_T *sub)); |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2855 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
|
2856 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
|
2857 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
|
2858 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
|
2859 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
|
2860 |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2861 static void |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2862 clear_sub(sub) |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2863 regsub_T *sub; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2864 { |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2865 if (REG_MULTI) |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2866 /* Use 0xff to set lnum to -1 */ |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2867 vim_memset(sub->list.multi, 0xff, |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2868 sizeof(struct multipos) * nfa_nsubexpr); |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2869 else |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2870 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
|
2871 sub->in_use = 0; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2872 } |
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 * Copy the submatches from "from" to "to". |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2876 */ |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2877 static void |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2878 copy_sub(to, from) |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2879 regsub_T *to; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2880 regsub_T *from; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2881 { |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2882 to->in_use = from->in_use; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2883 if (from->in_use > 0) |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2884 { |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2885 /* Copy the match start and end positions. */ |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2886 if (REG_MULTI) |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2887 mch_memmove(&to->list.multi[0], |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2888 &from->list.multi[0], |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2889 sizeof(struct multipos) * from->in_use); |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2890 else |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2891 mch_memmove(&to->list.line[0], |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2892 &from->list.line[0], |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2893 sizeof(struct linepos) * from->in_use); |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2894 } |
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 * Like copy_sub() but exclude the main match. |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2899 */ |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2900 static void |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2901 copy_sub_off(to, from) |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2902 regsub_T *to; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2903 regsub_T *from; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2904 { |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2905 if (to->in_use < from->in_use) |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2906 to->in_use = from->in_use; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2907 if (from->in_use > 1) |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2908 { |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2909 /* Copy the match start and end positions. */ |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2910 if (REG_MULTI) |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2911 mch_memmove(&to->list.multi[1], |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2912 &from->list.multi[1], |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2913 sizeof(struct multipos) * (from->in_use - 1)); |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2914 else |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2915 mch_memmove(&to->list.line[1], |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2916 &from->list.line[1], |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2917 sizeof(struct linepos) * (from->in_use - 1)); |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2918 } |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2919 } |
4444 | 2920 |
4647
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2921 /* |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2922 * 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
|
2923 */ |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2924 static int |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2925 sub_equal(sub1, sub2) |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2926 regsub_T *sub1; |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2927 regsub_T *sub2; |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2928 { |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2929 int i; |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2930 int todo; |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2931 linenr_T s1, e1; |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2932 linenr_T s2, e2; |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2933 char_u *sp1, *ep1; |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2934 char_u *sp2, *ep2; |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2935 |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2936 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
|
2937 if (REG_MULTI) |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2938 { |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2939 for (i = 0; i < todo; ++i) |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2940 { |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2941 if (i < sub1->in_use) |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2942 { |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2943 s1 = sub1->list.multi[i].start.lnum; |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2944 e1 = sub1->list.multi[i].end.lnum; |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2945 } |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2946 else |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2947 { |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2948 s1 = 0; |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2949 e1 = 0; |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2950 } |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2951 if (i < sub2->in_use) |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2952 { |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2953 s2 = sub2->list.multi[i].start.lnum; |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2954 e2 = sub2->list.multi[i].end.lnum; |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2955 } |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2956 else |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2957 { |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2958 s2 = 0; |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2959 e2 = 0; |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2960 } |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2961 if (s1 != s2 || e1 != e2) |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2962 return FALSE; |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2963 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
|
2964 != sub2->list.multi[i].start.col) |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2965 return FALSE; |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2966 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
|
2967 != sub2->list.multi[i].end.col) |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2968 return FALSE; |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2969 } |
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 else |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2972 { |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2973 for (i = 0; i < todo; ++i) |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2974 { |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2975 if (i < sub1->in_use) |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2976 { |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2977 sp1 = sub1->list.line[i].start; |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2978 ep1 = sub1->list.line[i].end; |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2979 } |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2980 else |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2981 { |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2982 sp1 = NULL; |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2983 ep1 = NULL; |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2984 } |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2985 if (i < sub2->in_use) |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2986 { |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2987 sp2 = sub2->list.line[i].start; |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2988 ep2 = sub2->list.line[i].end; |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2989 } |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2990 else |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2991 { |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2992 sp2 = NULL; |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2993 ep2 = NULL; |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2994 } |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2995 if (sp1 != sp2 || ep1 != ep2) |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2996 return FALSE; |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2997 } |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2998 } |
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 return TRUE; |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3001 } |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3002 |
4444 | 3003 static void |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3004 addstate(l, state, subs, off) |
4539
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3005 nfa_list_T *l; /* runtime state list */ |
4444 | 3006 nfa_state_T *state; /* state to update */ |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3007 regsubs_T *subs; /* pointers to subexpressions */ |
4515
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
3008 int off; /* byte offset, when -1 go to next line */ |
4444 | 3009 { |
4561
4d81fdda8f35
updated for version 7.3.1028
Bram Moolenaar <bram@vim.org>
parents:
4559
diff
changeset
|
3010 int subidx; |
4647
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3011 nfa_thread_T *thread; |
4561
4d81fdda8f35
updated for version 7.3.1028
Bram Moolenaar <bram@vim.org>
parents:
4559
diff
changeset
|
3012 lpos_T save_lpos; |
4563
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3013 int save_in_use; |
4561
4d81fdda8f35
updated for version 7.3.1028
Bram Moolenaar <bram@vim.org>
parents:
4559
diff
changeset
|
3014 char_u *save_ptr; |
4563
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3015 int i; |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3016 regsub_T *sub; |
4657
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3017 #ifdef ENABLE_LOG |
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3018 int did_print = FALSE; |
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3019 #endif |
4444 | 3020 |
3021 if (l == NULL || state == NULL) | |
3022 return; | |
3023 | |
3024 switch (state->c) | |
3025 { | |
3026 case NFA_SPLIT: | |
3027 case NFA_NOT: | |
3028 case NFA_NOPEN: | |
3029 case NFA_NCLOSE: | |
3030 case NFA_MCLOSE: | |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3031 case NFA_MCLOSE1: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3032 case NFA_MCLOSE2: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3033 case NFA_MCLOSE3: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3034 case NFA_MCLOSE4: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3035 case NFA_MCLOSE5: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3036 case NFA_MCLOSE6: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3037 case NFA_MCLOSE7: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3038 case NFA_MCLOSE8: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3039 case NFA_MCLOSE9: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3040 #ifdef FEAT_SYN_HL |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3041 case NFA_ZCLOSE: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3042 case NFA_ZCLOSE1: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3043 case NFA_ZCLOSE2: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3044 case NFA_ZCLOSE3: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3045 case NFA_ZCLOSE4: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3046 case NFA_ZCLOSE5: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3047 case NFA_ZCLOSE6: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3048 case NFA_ZCLOSE7: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3049 case NFA_ZCLOSE8: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3050 case NFA_ZCLOSE9: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3051 #endif |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3052 /* 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
|
3053 * "out1" may be added below. */ |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3054 break; |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3055 |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3056 case NFA_MOPEN: |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3057 case NFA_MOPEN1: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3058 case NFA_MOPEN2: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3059 case NFA_MOPEN3: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3060 case NFA_MOPEN4: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3061 case NFA_MOPEN5: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3062 case NFA_MOPEN6: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3063 case NFA_MOPEN7: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3064 case NFA_MOPEN8: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3065 case NFA_MOPEN9: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3066 #ifdef FEAT_SYN_HL |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3067 case NFA_ZOPEN: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3068 case NFA_ZOPEN1: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3069 case NFA_ZOPEN2: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3070 case NFA_ZOPEN3: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3071 case NFA_ZOPEN4: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3072 case NFA_ZOPEN5: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3073 case NFA_ZOPEN6: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3074 case NFA_ZOPEN7: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3075 case NFA_ZOPEN8: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3076 case NFA_ZOPEN9: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3077 #endif |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3078 /* 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
|
3079 * 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
|
3080 if (state->lastlist == l->id) |
4657
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3081 goto skip_add; |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3082 state->lastlist = l->id; |
4444 | 3083 break; |
3084 | |
4694
efc4fb311d5d
updated for version 7.3.1094
Bram Moolenaar <bram@vim.org>
parents:
4692
diff
changeset
|
3085 case NFA_BOL: |
efc4fb311d5d
updated for version 7.3.1094
Bram Moolenaar <bram@vim.org>
parents:
4692
diff
changeset
|
3086 case NFA_BOF: |
efc4fb311d5d
updated for version 7.3.1094
Bram Moolenaar <bram@vim.org>
parents:
4692
diff
changeset
|
3087 /* "^" 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
|
3088 * 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
|
3089 * match. */ |
efc4fb311d5d
updated for version 7.3.1094
Bram Moolenaar <bram@vim.org>
parents:
4692
diff
changeset
|
3090 if (reginput > regline |
efc4fb311d5d
updated for version 7.3.1094
Bram Moolenaar <bram@vim.org>
parents:
4692
diff
changeset
|
3091 && (nfa_endp == NULL |
efc4fb311d5d
updated for version 7.3.1094
Bram Moolenaar <bram@vim.org>
parents:
4692
diff
changeset
|
3092 || !REG_MULTI |
efc4fb311d5d
updated for version 7.3.1094
Bram Moolenaar <bram@vim.org>
parents:
4692
diff
changeset
|
3093 || reglnum == nfa_endp->se_u.pos.lnum)) |
efc4fb311d5d
updated for version 7.3.1094
Bram Moolenaar <bram@vim.org>
parents:
4692
diff
changeset
|
3094 goto skip_add; |
efc4fb311d5d
updated for version 7.3.1094
Bram Moolenaar <bram@vim.org>
parents:
4692
diff
changeset
|
3095 /* FALLTHROUGH */ |
efc4fb311d5d
updated for version 7.3.1094
Bram Moolenaar <bram@vim.org>
parents:
4692
diff
changeset
|
3096 |
4444 | 3097 default: |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3098 if (state->lastlist == l->id) |
4444 | 3099 { |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3100 /* 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
|
3101 * 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
|
3102 if (!nfa_has_backref) |
4657
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3103 { |
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3104 skip_add: |
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3105 #ifdef ENABLE_LOG |
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3106 nfa_set_code(state->c); |
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3107 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
|
3108 abs(state->id), l->id, state->c, code); |
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3109 #endif |
4647
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3110 return; |
4657
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3111 } |
4647
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3112 |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3113 /* 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
|
3114 * positions. */ |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3115 for (i = 0; i < l->n; ++i) |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3116 { |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3117 thread = &l->t[i]; |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3118 if (thread->state->id == state->id |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3119 && sub_equal(&thread->subs.norm, &subs->norm) |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3120 #ifdef FEAT_SYN_HL |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3121 && sub_equal(&thread->subs.synt, &subs->synt) |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3122 #endif |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3123 ) |
4657
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3124 goto skip_add; |
4647
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3125 } |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3126 } |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3127 |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3128 /* 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
|
3129 * lot) bigger */ |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3130 if (nfa_has_backref && l->n == l->len) |
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 int newlen = l->len * 3 / 2 + 50; |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3133 |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3134 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
|
3135 l->len = newlen; |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3136 } |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3137 |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3138 /* add the state to the list */ |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3139 state->lastlist = l->id; |
4647
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3140 thread = &l->t[l->n++]; |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3141 thread->state = state; |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3142 copy_sub(&thread->subs.norm, &subs->norm); |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3143 #ifdef FEAT_SYN_HL |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3144 copy_sub(&thread->subs.synt, &subs->synt); |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3145 #endif |
4657
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3146 #ifdef ENABLE_LOG |
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3147 { |
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3148 int col; |
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3149 |
4690
9d97a0c045ef
updated for version 7.3.1092
Bram Moolenaar <bram@vim.org>
parents:
4688
diff
changeset
|
3150 if (thread->subs.norm.in_use <= 0) |
4657
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3151 col = -1; |
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3152 else if (REG_MULTI) |
4690
9d97a0c045ef
updated for version 7.3.1092
Bram Moolenaar <bram@vim.org>
parents:
4688
diff
changeset
|
3153 col = thread->subs.norm.list.multi[0].start.col; |
4657
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3154 else |
4690
9d97a0c045ef
updated for version 7.3.1092
Bram Moolenaar <bram@vim.org>
parents:
4688
diff
changeset
|
3155 col = (int)(thread->subs.norm.list.line[0].start - regline); |
4657
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3156 nfa_set_code(state->c); |
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3157 fprintf(log_fd, "> Adding state %d to list %d. char %d: %s (start col %d)\n", |
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3158 abs(state->id), l->id, state->c, code, col); |
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3159 did_print = TRUE; |
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3160 } |
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3161 #endif |
4444 | 3162 } |
3163 | |
3164 #ifdef ENABLE_LOG | |
4657
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3165 if (!did_print) |
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3166 { |
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3167 int col; |
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3168 |
4690
9d97a0c045ef
updated for version 7.3.1092
Bram Moolenaar <bram@vim.org>
parents:
4688
diff
changeset
|
3169 if (subs->norm.in_use <= 0) |
4657
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3170 col = -1; |
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3171 else if (REG_MULTI) |
4690
9d97a0c045ef
updated for version 7.3.1092
Bram Moolenaar <bram@vim.org>
parents:
4688
diff
changeset
|
3172 col = subs->norm.list.multi[0].start.col; |
4657
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3173 else |
4690
9d97a0c045ef
updated for version 7.3.1092
Bram Moolenaar <bram@vim.org>
parents:
4688
diff
changeset
|
3174 col = (int)(subs->norm.list.line[0].start - regline); |
4657
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3175 nfa_set_code(state->c); |
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3176 fprintf(log_fd, "> Processing state %d for list %d. char %d: %s (start col %d)\n", |
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3177 abs(state->id), l->id, state->c, code, col); |
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3178 } |
4444 | 3179 #endif |
3180 switch (state->c) | |
3181 { | |
3182 case NFA_MATCH: | |
4561
4d81fdda8f35
updated for version 7.3.1028
Bram Moolenaar <bram@vim.org>
parents:
4559
diff
changeset
|
3183 nfa_match = TRUE; |
4444 | 3184 break; |
3185 | |
3186 case NFA_SPLIT: | |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3187 /* order matters here */ |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3188 addstate(l, state->out, subs, off); |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3189 addstate(l, state->out1, subs, off); |
4444 | 3190 break; |
3191 | |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3192 case NFA_SKIP_CHAR: |
4444 | 3193 case NFA_NOPEN: |
3194 case NFA_NCLOSE: | |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3195 addstate(l, state->out, subs, off); |
4444 | 3196 break; |
3197 | |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3198 case NFA_MOPEN: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3199 case NFA_MOPEN1: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3200 case NFA_MOPEN2: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3201 case NFA_MOPEN3: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3202 case NFA_MOPEN4: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3203 case NFA_MOPEN5: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3204 case NFA_MOPEN6: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3205 case NFA_MOPEN7: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3206 case NFA_MOPEN8: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3207 case NFA_MOPEN9: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3208 #ifdef FEAT_SYN_HL |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3209 case NFA_ZOPEN: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3210 case NFA_ZOPEN1: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3211 case NFA_ZOPEN2: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3212 case NFA_ZOPEN3: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3213 case NFA_ZOPEN4: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3214 case NFA_ZOPEN5: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3215 case NFA_ZOPEN6: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3216 case NFA_ZOPEN7: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3217 case NFA_ZOPEN8: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3218 case NFA_ZOPEN9: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3219 #endif |
4444 | 3220 case NFA_ZSTART: |
3221 if (state->c == NFA_ZSTART) | |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3222 { |
4444 | 3223 subidx = 0; |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3224 sub = &subs->norm; |
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 #ifdef FEAT_SYN_HL |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3227 else if (state->c >= NFA_ZOPEN) |
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 subidx = state->c - NFA_ZOPEN; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3230 sub = &subs->synt; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3231 } |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3232 #endif |
4561
4d81fdda8f35
updated for version 7.3.1028
Bram Moolenaar <bram@vim.org>
parents:
4559
diff
changeset
|
3233 else |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3234 { |
4561
4d81fdda8f35
updated for version 7.3.1028
Bram Moolenaar <bram@vim.org>
parents:
4559
diff
changeset
|
3235 subidx = state->c - NFA_MOPEN; |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3236 sub = &subs->norm; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3237 } |
4444 | 3238 |
4563
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3239 /* 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
|
3240 * 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
|
3241 save_ptr = NULL; |
4444 | 3242 if (REG_MULTI) |
3243 { | |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3244 if (subidx < sub->in_use) |
4563
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3245 { |
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3246 save_lpos = sub->list.multi[subidx].start; |
4563
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3247 save_in_use = -1; |
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3248 } |
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3249 else |
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3250 { |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3251 save_in_use = sub->in_use; |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3252 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
|
3253 { |
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3254 sub->list.multi[i].start.lnum = -1; |
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3255 sub->list.multi[i].end.lnum = -1; |
4563
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3256 } |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3257 sub->in_use = subidx + 1; |
4563
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3258 } |
4515
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
3259 if (off == -1) |
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
3260 { |
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3261 sub->list.multi[subidx].start.lnum = reglnum + 1; |
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3262 sub->list.multi[subidx].start.col = 0; |
4515
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
3263 } |
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
3264 else |
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
3265 { |
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3266 sub->list.multi[subidx].start.lnum = reglnum; |
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3267 sub->list.multi[subidx].start.col = |
4515
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
3268 (colnr_T)(reginput - regline + off); |
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
3269 } |
4444 | 3270 } |
3271 else | |
3272 { | |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3273 if (subidx < sub->in_use) |
4563
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3274 { |
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3275 save_ptr = sub->list.line[subidx].start; |
4563
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3276 save_in_use = -1; |
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3277 } |
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3278 else |
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3279 { |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3280 save_in_use = sub->in_use; |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3281 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
|
3282 { |
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3283 sub->list.line[i].start = NULL; |
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3284 sub->list.line[i].end = NULL; |
4563
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3285 } |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3286 sub->in_use = subidx + 1; |
4563
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3287 } |
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3288 sub->list.line[subidx].start = reginput + off; |
4444 | 3289 } |
3290 | |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3291 addstate(l, state->out, subs, off); |
4444 | 3292 |
4563
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3293 if (save_in_use == -1) |
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3294 { |
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3295 if (REG_MULTI) |
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3296 sub->list.multi[subidx].start = save_lpos; |
4563
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3297 else |
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3298 sub->list.line[subidx].start = save_ptr; |
4563
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3299 } |
4444 | 3300 else |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3301 sub->in_use = save_in_use; |
4444 | 3302 break; |
3303 | |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3304 case NFA_MCLOSE: |
4553
7b835b2969af
updated for version 7.3.1024
Bram Moolenaar <bram@vim.org>
parents:
4551
diff
changeset
|
3305 if (nfa_has_zend) |
4444 | 3306 { |
4569
f262fb02889d
updated for version 7.3.1032
Bram Moolenaar <bram@vim.org>
parents:
4567
diff
changeset
|
3307 /* 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
|
3308 * 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
|
3309 addstate(l, state->out, subs, off); |
4444 | 3310 break; |
3311 } | |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3312 case NFA_MCLOSE1: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3313 case NFA_MCLOSE2: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3314 case NFA_MCLOSE3: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3315 case NFA_MCLOSE4: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3316 case NFA_MCLOSE5: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3317 case NFA_MCLOSE6: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3318 case NFA_MCLOSE7: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3319 case NFA_MCLOSE8: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3320 case NFA_MCLOSE9: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3321 #ifdef FEAT_SYN_HL |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3322 case NFA_ZCLOSE: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3323 case NFA_ZCLOSE1: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3324 case NFA_ZCLOSE2: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3325 case NFA_ZCLOSE3: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3326 case NFA_ZCLOSE4: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3327 case NFA_ZCLOSE5: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3328 case NFA_ZCLOSE6: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3329 case NFA_ZCLOSE7: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3330 case NFA_ZCLOSE8: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3331 case NFA_ZCLOSE9: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3332 #endif |
4444 | 3333 case NFA_ZEND: |
3334 if (state->c == NFA_ZEND) | |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3335 { |
4444 | 3336 subidx = 0; |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3337 sub = &subs->norm; |
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 #ifdef FEAT_SYN_HL |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3340 else if (state->c >= NFA_ZCLOSE) |
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 subidx = state->c - NFA_ZCLOSE; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3343 sub = &subs->synt; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3344 } |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3345 #endif |
4561
4d81fdda8f35
updated for version 7.3.1028
Bram Moolenaar <bram@vim.org>
parents:
4559
diff
changeset
|
3346 else |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3347 { |
4561
4d81fdda8f35
updated for version 7.3.1028
Bram Moolenaar <bram@vim.org>
parents:
4559
diff
changeset
|
3348 subidx = state->c - NFA_MCLOSE; |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3349 sub = &subs->norm; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3350 } |
4444 | 3351 |
4563
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3352 /* 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
|
3353 * has done that. */ |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3354 save_in_use = sub->in_use; |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3355 if (sub->in_use <= subidx) |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3356 sub->in_use = subidx + 1; |
4444 | 3357 if (REG_MULTI) |
3358 { | |
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3359 save_lpos = sub->list.multi[subidx].end; |
4515
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
3360 if (off == -1) |
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
3361 { |
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3362 sub->list.multi[subidx].end.lnum = reglnum + 1; |
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3363 sub->list.multi[subidx].end.col = 0; |
4515
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
3364 } |
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
3365 else |
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
3366 { |
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3367 sub->list.multi[subidx].end.lnum = reglnum; |
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3368 sub->list.multi[subidx].end.col = |
4561
4d81fdda8f35
updated for version 7.3.1028
Bram Moolenaar <bram@vim.org>
parents:
4559
diff
changeset
|
3369 (colnr_T)(reginput - regline + off); |
4515
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
3370 } |
4444 | 3371 } |
3372 else | |
3373 { | |
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3374 save_ptr = sub->list.line[subidx].end; |
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3375 sub->list.line[subidx].end = reginput + off; |
4444 | 3376 } |
3377 | |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3378 addstate(l, state->out, subs, off); |
4444 | 3379 |
3380 if (REG_MULTI) | |
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3381 sub->list.multi[subidx].end = save_lpos; |
4444 | 3382 else |
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3383 sub->list.line[subidx].end = save_ptr; |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3384 sub->in_use = save_in_use; |
4444 | 3385 break; |
3386 } | |
3387 } | |
3388 | |
3389 /* | |
4539
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3390 * 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
|
3391 * 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
|
3392 * 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
|
3393 * matters for alternatives. |
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3394 */ |
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3395 static void |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3396 addstate_here(l, state, subs, ip) |
4539
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3397 nfa_list_T *l; /* runtime state list */ |
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3398 nfa_state_T *state; /* state to update */ |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3399 regsubs_T *subs; /* pointers to subexpressions */ |
4539
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3400 int *ip; |
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3401 { |
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3402 int tlen = l->n; |
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3403 int count; |
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3404 int i = *ip; |
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 /* 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
|
3407 addstate(l, state, subs, 0); |
4539
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3408 |
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3409 /* 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
|
3410 if (i + 1 == tlen) |
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3411 return; |
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3412 |
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3413 /* 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
|
3414 count = l->n - tlen; |
4647
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3415 if (count == 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 /* overwrite the current state */ |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3418 l->t[i] = l->t[l->n - 1]; |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3419 } |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3420 else if (count > 1) |
4539
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3421 { |
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3422 /* 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
|
3423 * end to the current position */ |
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3424 mch_memmove(&(l->t[i + count]), |
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3425 &(l->t[i + 1]), |
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3426 sizeof(nfa_thread_T) * (l->n - i - 1)); |
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3427 mch_memmove(&(l->t[i]), |
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3428 &(l->t[l->n - 1]), |
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3429 sizeof(nfa_thread_T) * count); |
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 --l->n; |
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3432 *ip = i - 1; |
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3433 } |
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3434 |
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3435 /* |
4444 | 3436 * Check character class "class" against current character c. |
3437 */ | |
3438 static int | |
3439 check_char_class(class, c) | |
3440 int class; | |
3441 int c; | |
3442 { | |
3443 switch (class) | |
3444 { | |
3445 case NFA_CLASS_ALNUM: | |
4464 | 3446 if (c >= 1 && c <= 255 && isalnum(c)) |
4444 | 3447 return OK; |
3448 break; | |
3449 case NFA_CLASS_ALPHA: | |
4464 | 3450 if (c >= 1 && c <= 255 && isalpha(c)) |
4444 | 3451 return OK; |
3452 break; | |
3453 case NFA_CLASS_BLANK: | |
3454 if (c == ' ' || c == '\t') | |
3455 return OK; | |
3456 break; | |
3457 case NFA_CLASS_CNTRL: | |
4464 | 3458 if (c >= 1 && c <= 255 && iscntrl(c)) |
4444 | 3459 return OK; |
3460 break; | |
3461 case NFA_CLASS_DIGIT: | |
3462 if (VIM_ISDIGIT(c)) | |
3463 return OK; | |
3464 break; | |
3465 case NFA_CLASS_GRAPH: | |
4464 | 3466 if (c >= 1 && c <= 255 && isgraph(c)) |
4444 | 3467 return OK; |
3468 break; | |
3469 case NFA_CLASS_LOWER: | |
3470 if (MB_ISLOWER(c)) | |
3471 return OK; | |
3472 break; | |
3473 case NFA_CLASS_PRINT: | |
3474 if (vim_isprintc(c)) | |
3475 return OK; | |
3476 break; | |
3477 case NFA_CLASS_PUNCT: | |
4464 | 3478 if (c >= 1 && c <= 255 && ispunct(c)) |
4444 | 3479 return OK; |
3480 break; | |
3481 case NFA_CLASS_SPACE: | |
3482 if ((c >=9 && c <= 13) || (c == ' ')) | |
3483 return OK; | |
3484 break; | |
3485 case NFA_CLASS_UPPER: | |
3486 if (MB_ISUPPER(c)) | |
3487 return OK; | |
3488 break; | |
3489 case NFA_CLASS_XDIGIT: | |
3490 if (vim_isxdigit(c)) | |
3491 return OK; | |
3492 break; | |
3493 case NFA_CLASS_TAB: | |
3494 if (c == '\t') | |
3495 return OK; | |
3496 break; | |
3497 case NFA_CLASS_RETURN: | |
3498 if (c == '\r') | |
3499 return OK; | |
3500 break; | |
3501 case NFA_CLASS_BACKSPACE: | |
3502 if (c == '\b') | |
3503 return OK; | |
3504 break; | |
3505 case NFA_CLASS_ESCAPE: | |
3506 if (c == '\033') | |
3507 return OK; | |
3508 break; | |
3509 | |
3510 default: | |
3511 /* should not be here :P */ | |
3512 EMSG_RET_FAIL(_("E877: (NFA regexp) Invalid character class ")); | |
3513 } | |
3514 return FAIL; | |
3515 } | |
3516 | |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3517 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
|
3518 |
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 * Check for a match with subexpression "subidx". |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3521 * Return TRUE if it matches. |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3522 */ |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3523 static int |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3524 match_backref(sub, subidx, bytelen) |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3525 regsub_T *sub; /* pointers to subexpressions */ |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3526 int subidx; |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3527 int *bytelen; /* out: length of match in bytes */ |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3528 { |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3529 int len; |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3530 |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3531 if (sub->in_use <= subidx) |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3532 { |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3533 retempty: |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3534 /* backref was not set, match an empty string */ |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3535 *bytelen = 0; |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3536 return TRUE; |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3537 } |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3538 |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3539 if (REG_MULTI) |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3540 { |
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3541 if (sub->list.multi[subidx].start.lnum < 0 |
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3542 || sub->list.multi[subidx].end.lnum < 0) |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3543 goto retempty; |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3544 /* TODO: line breaks */ |
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3545 len = sub->list.multi[subidx].end.col |
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3546 - sub->list.multi[subidx].start.col; |
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3547 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
|
3548 reginput, &len) == 0) |
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 *bytelen = len; |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3551 return TRUE; |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3552 } |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3553 } |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3554 else |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3555 { |
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3556 if (sub->list.line[subidx].start == NULL |
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3557 || sub->list.line[subidx].end == NULL) |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3558 goto retempty; |
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3559 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
|
3560 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
|
3561 { |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3562 *bytelen = len; |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3563 return TRUE; |
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 } |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3566 return FALSE; |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3567 } |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3568 |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3569 #ifdef FEAT_SYN_HL |
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 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
|
3572 |
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 * Check for a match with \z subexpression "subidx". |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3575 * Return TRUE if it matches. |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3576 */ |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3577 static int |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3578 match_zref(subidx, bytelen) |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3579 int subidx; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3580 int *bytelen; /* out: length of match in bytes */ |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3581 { |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3582 int len; |
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 cleanup_zsubexpr(); |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3585 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
|
3586 { |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3587 /* backref was not set, match an empty string */ |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3588 *bytelen = 0; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3589 return TRUE; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3590 } |
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 len = (int)STRLEN(re_extmatch_in->matches[subidx]); |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3593 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
|
3594 { |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3595 *bytelen = len; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3596 return TRUE; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3597 } |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3598 return FALSE; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3599 } |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3600 #endif |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3601 |
4444 | 3602 /* |
3603 * Set all NFA nodes' list ID equal to -1. | |
3604 */ | |
3605 static void | |
3606 nfa_set_neg_listids(start) | |
3607 nfa_state_T *start; | |
3608 { | |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3609 if (start != NULL && start->lastlist >= 0) |
4444 | 3610 { |
3611 start->lastlist = -1; | |
3612 nfa_set_neg_listids(start->out); | |
3613 nfa_set_neg_listids(start->out1); | |
3614 } | |
3615 } | |
3616 | |
3617 /* | |
3618 * Set all NFA nodes' list ID equal to 0. | |
3619 */ | |
3620 static void | |
3621 nfa_set_null_listids(start) | |
3622 nfa_state_T *start; | |
3623 { | |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3624 if (start != NULL && start->lastlist == -1) |
4444 | 3625 { |
3626 start->lastlist = 0; | |
3627 nfa_set_null_listids(start->out); | |
3628 nfa_set_null_listids(start->out1); | |
3629 } | |
3630 } | |
3631 | |
3632 /* | |
3633 * Save list IDs for all NFA states in "list". | |
3634 */ | |
3635 static void | |
3636 nfa_save_listids(start, list) | |
3637 nfa_state_T *start; | |
3638 int *list; | |
3639 { | |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3640 if (start != NULL && start->lastlist != -1) |
4444 | 3641 { |
3642 list[abs(start->id)] = start->lastlist; | |
3643 start->lastlist = -1; | |
3644 nfa_save_listids(start->out, list); | |
3645 nfa_save_listids(start->out1, list); | |
3646 } | |
3647 } | |
3648 | |
3649 /* | |
3650 * Restore list IDs from "list" to all NFA states. | |
3651 */ | |
3652 static void | |
3653 nfa_restore_listids(start, list) | |
3654 nfa_state_T *start; | |
3655 int *list; | |
3656 { | |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3657 if (start != NULL && start->lastlist == -1) |
4444 | 3658 { |
3659 start->lastlist = list[abs(start->id)]; | |
3660 nfa_restore_listids(start->out, list); | |
3661 nfa_restore_listids(start->out1, list); | |
3662 } | |
3663 } | |
3664 | |
4583
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
3665 static int |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
3666 nfa_re_num_cmp(val, op, pos) |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
3667 long_u val; |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
3668 int op; |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
3669 long_u pos; |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
3670 { |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
3671 if (op == 1) return pos > val; |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
3672 if (op == 2) return pos < val; |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
3673 return val == pos; |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
3674 } |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
3675 |
4694
efc4fb311d5d
updated for version 7.3.1094
Bram Moolenaar <bram@vim.org>
parents:
4692
diff
changeset
|
3676 static int nfa_regmatch __ARGS((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
|
3677 |
4444 | 3678 /* |
3679 * Main matching routine. | |
3680 * | |
3681 * Run NFA to determine whether it matches reginput. | |
3682 * | |
4694
efc4fb311d5d
updated for version 7.3.1094
Bram Moolenaar <bram@vim.org>
parents:
4692
diff
changeset
|
3683 * 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
|
3684 * |
4444 | 3685 * Return TRUE if there is a match, FALSE otherwise. |
3686 * Note: Caller must ensure that: start != NULL. | |
3687 */ | |
3688 static int | |
4694
efc4fb311d5d
updated for version 7.3.1094
Bram Moolenaar <bram@vim.org>
parents:
4692
diff
changeset
|
3689 nfa_regmatch(start, submatch, m) |
4444 | 3690 nfa_state_T *start; |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3691 regsubs_T *submatch; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3692 regsubs_T *m; |
4444 | 3693 { |
3694 int result; | |
3695 int size = 0; | |
3696 int flag = 0; | |
4539
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3697 int go_to_nextline = FALSE; |
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3698 nfa_thread_T *t; |
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3699 nfa_list_T list[3]; |
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3700 nfa_list_T *listtbl[2][2]; |
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3701 nfa_list_T *ll; |
4444 | 3702 int listid = 1; |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
3703 int listidx; |
4539
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3704 nfa_list_T *thislist; |
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3705 nfa_list_T *nextlist; |
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3706 nfa_list_T *neglist; |
4444 | 3707 int *listids = NULL; |
4460 | 3708 #ifdef NFA_REGEXP_DEBUG_LOG |
4531
1be43c095aff
updated for version 7.3.1013
Bram Moolenaar <bram@vim.org>
parents:
4529
diff
changeset
|
3709 FILE *debug = fopen(NFA_REGEXP_DEBUG_LOG, "a"); |
4444 | 3710 |
3711 if (debug == NULL) | |
3712 { | |
4531
1be43c095aff
updated for version 7.3.1013
Bram Moolenaar <bram@vim.org>
parents:
4529
diff
changeset
|
3713 EMSG2(_("(NFA) COULD NOT OPEN %s !"), NFA_REGEXP_DEBUG_LOG); |
4444 | 3714 return FALSE; |
3715 } | |
3716 #endif | |
4561
4d81fdda8f35
updated for version 7.3.1028
Bram Moolenaar <bram@vim.org>
parents:
4559
diff
changeset
|
3717 nfa_match = FALSE; |
4444 | 3718 |
4563
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3719 /* Allocate memory for the lists of nodes. */ |
4539
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3720 size = (nstate + 1) * sizeof(nfa_thread_T); |
4647
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3721 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
|
3722 list[0].len = nstate + 1; |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3723 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
|
3724 list[1].len = nstate + 1; |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3725 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
|
3726 list[2].len = nstate + 1; |
4444 | 3727 if (list[0].t == NULL || list[1].t == NULL || list[2].t == NULL) |
3728 goto theend; | |
3729 | |
3730 #ifdef ENABLE_LOG | |
4531
1be43c095aff
updated for version 7.3.1013
Bram Moolenaar <bram@vim.org>
parents:
4529
diff
changeset
|
3731 log_fd = fopen(NFA_REGEXP_RUN_LOG, "a"); |
4444 | 3732 if (log_fd != NULL) |
3733 { | |
3734 fprintf(log_fd, "**********************************\n"); | |
3735 nfa_set_code(start->c); | |
3736 fprintf(log_fd, " RUNNING nfa_regmatch() starting with state %d, code %s\n", | |
3737 abs(start->id), code); | |
3738 fprintf(log_fd, "**********************************\n"); | |
3739 } | |
3740 else | |
3741 { | |
3742 EMSG(_("Could not open temporary log file for writing, displaying on stderr ... ")); | |
3743 log_fd = stderr; | |
3744 } | |
3745 #endif | |
3746 | |
3747 thislist = &list[0]; | |
3748 thislist->n = 0; | |
3749 nextlist = &list[1]; | |
3750 nextlist->n = 0; | |
3751 neglist = &list[2]; | |
3752 neglist->n = 0; | |
3753 #ifdef ENABLE_LOG | |
3754 fprintf(log_fd, "(---) STARTSTATE\n"); | |
3755 #endif | |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3756 thislist->id = listid; |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3757 addstate(thislist, start, m, 0); |
4444 | 3758 |
3759 /* There are two cases when the NFA advances: 1. input char matches the | |
3760 * NFA node and 2. input char does not match the NFA node, but the next | |
3761 * node is NFA_NOT. The following macro calls addstate() according to | |
3762 * these rules. It is used A LOT, so use the "listtbl" table for speed */ | |
3763 listtbl[0][0] = NULL; | |
3764 listtbl[0][1] = neglist; | |
3765 listtbl[1][0] = nextlist; | |
3766 listtbl[1][1] = NULL; | |
3767 #define ADD_POS_NEG_STATE(node) \ | |
3768 ll = listtbl[result ? 1 : 0][node->negated]; \ | |
3769 if (ll != NULL) \ | |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3770 addstate(ll, node->out , &t->subs, clen); |
4444 | 3771 |
3772 | |
3773 /* | |
3774 * Run for each character. | |
3775 */ | |
4515
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
3776 for (;;) |
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
3777 { |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
3778 int curc; |
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
3779 int clen; |
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
3780 |
4444 | 3781 #ifdef FEAT_MBYTE |
3782 if (has_mbyte) | |
3783 { | |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
3784 curc = (*mb_ptr2char)(reginput); |
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
3785 clen = (*mb_ptr2len)(reginput); |
4444 | 3786 } |
3787 else | |
3788 #endif | |
3789 { | |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
3790 curc = *reginput; |
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
3791 clen = 1; |
4444 | 3792 } |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
3793 if (curc == NUL) |
4515
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
3794 { |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
3795 clen = 0; |
4515
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
3796 go_to_nextline = FALSE; |
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
3797 } |
4444 | 3798 |
3799 /* swap lists */ | |
3800 thislist = &list[flag]; | |
3801 nextlist = &list[flag ^= 1]; | |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3802 nextlist->n = 0; /* clear nextlist */ |
4444 | 3803 listtbl[1][0] = nextlist; |
3804 ++listid; | |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3805 thislist->id = listid; |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3806 nextlist->id = listid + 1; |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3807 neglist->id = listid + 1; |
4444 | 3808 |
3809 #ifdef ENABLE_LOG | |
3810 fprintf(log_fd, "------------------------------------------\n"); | |
3811 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
|
3812 fprintf(log_fd, ">>> Advanced one character ... Current char is %c (code %d) \n", curc, (int)curc); |
4444 | 3813 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
|
3814 { |
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
3815 int i; |
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
3816 |
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
3817 for (i = 0; i < thislist->n; i++) |
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
3818 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
|
3819 } |
4444 | 3820 fprintf(log_fd, "\n"); |
3821 #endif | |
3822 | |
4460 | 3823 #ifdef NFA_REGEXP_DEBUG_LOG |
4444 | 3824 fprintf(debug, "\n-------------------\n"); |
3825 #endif | |
4480 | 3826 /* |
3827 * If the state lists are empty we can stop. | |
3828 */ | |
3829 if (thislist->n == 0 && neglist->n == 0) | |
3830 break; | |
4444 | 3831 |
3832 /* compute nextlist */ | |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
3833 for (listidx = 0; listidx < thislist->n || neglist->n > 0; ++listidx) |
4444 | 3834 { |
3835 if (neglist->n > 0) | |
3836 { | |
3837 t = &neglist->t[0]; | |
4468 | 3838 neglist->n--; |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
3839 listidx--; |
4444 | 3840 } |
3841 else | |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
3842 t = &thislist->t[listidx]; |
4444 | 3843 |
4460 | 3844 #ifdef NFA_REGEXP_DEBUG_LOG |
4444 | 3845 nfa_set_code(t->state->c); |
3846 fprintf(debug, "%s, ", code); | |
3847 #endif | |
3848 #ifdef ENABLE_LOG | |
4657
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3849 { |
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3850 int col; |
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3851 |
4690
9d97a0c045ef
updated for version 7.3.1092
Bram Moolenaar <bram@vim.org>
parents:
4688
diff
changeset
|
3852 if (t->subs.norm.in_use <= 0) |
4657
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3853 col = -1; |
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3854 else if (REG_MULTI) |
4690
9d97a0c045ef
updated for version 7.3.1092
Bram Moolenaar <bram@vim.org>
parents:
4688
diff
changeset
|
3855 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
|
3856 else |
4690
9d97a0c045ef
updated for version 7.3.1092
Bram Moolenaar <bram@vim.org>
parents:
4688
diff
changeset
|
3857 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
|
3858 nfa_set_code(t->state->c); |
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3859 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
|
3860 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
|
3861 } |
4444 | 3862 #endif |
3863 | |
3864 /* | |
3865 * Handle the possible codes of the current state. | |
3866 * The most important is NFA_MATCH. | |
3867 */ | |
3868 switch (t->state->c) | |
3869 { | |
3870 case NFA_MATCH: | |
4567
96c1a7850097
updated for version 7.3.1031
Bram Moolenaar <bram@vim.org>
parents:
4565
diff
changeset
|
3871 { |
4561
4d81fdda8f35
updated for version 7.3.1028
Bram Moolenaar <bram@vim.org>
parents:
4559
diff
changeset
|
3872 nfa_match = TRUE; |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3873 copy_sub(&submatch->norm, &t->subs.norm); |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3874 #ifdef FEAT_SYN_HL |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3875 copy_sub(&submatch->synt, &t->subs.synt); |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3876 #endif |
4444 | 3877 #ifdef ENABLE_LOG |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3878 log_subsexpr(&t->subs); |
4444 | 3879 #endif |
4515
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
3880 /* 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
|
3881 * 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
|
3882 * 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
|
3883 * correct. */ |
7b835b2969af
updated for version 7.3.1024
Bram Moolenaar <bram@vim.org>
parents:
4551
diff
changeset
|
3884 if (nextlist->n == 0 && neglist->n == 0) |
7b835b2969af
updated for version 7.3.1024
Bram Moolenaar <bram@vim.org>
parents:
4551
diff
changeset
|
3885 clen = 0; |
4515
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
3886 goto nextchar; |
4567
96c1a7850097
updated for version 7.3.1031
Bram Moolenaar <bram@vim.org>
parents:
4565
diff
changeset
|
3887 } |
4444 | 3888 |
3889 case NFA_END_INVISIBLE: | |
4682
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3890 /* 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
|
3891 * NFA_START_INVISIBLE_BEFORE node. |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3892 * They surround a zero-width group, used with "\@=", "\&", |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3893 * "\@!", "\@<=" and "\@<!". |
4444 | 3894 * If we got here, it means that the current "invisible" group |
3895 * finished successfully, so return control to the parent | |
3896 * nfa_regmatch(). Submatches are stored in *m, and used in | |
3897 * the parent call. */ | |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3898 if (start->c == NFA_MOPEN) |
4682
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3899 /* TODO: do we ever get here? */ |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3900 addstate_here(thislist, t->state->out, &t->subs, &listidx); |
4444 | 3901 else |
3902 { | |
4682
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3903 #ifdef ENABLE_LOG |
4694
efc4fb311d5d
updated for version 7.3.1094
Bram Moolenaar <bram@vim.org>
parents:
4692
diff
changeset
|
3904 if (nfa_endp != NULL) |
4682
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3905 { |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3906 if (REG_MULTI) |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3907 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
|
3908 (int)reglnum, |
4694
efc4fb311d5d
updated for version 7.3.1094
Bram Moolenaar <bram@vim.org>
parents:
4692
diff
changeset
|
3909 (int)nfa_endp->se_u.pos.lnum, |
4682
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3910 (int)(reginput - regline), |
4694
efc4fb311d5d
updated for version 7.3.1094
Bram Moolenaar <bram@vim.org>
parents:
4692
diff
changeset
|
3911 nfa_endp->se_u.pos.col); |
4682
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3912 else |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3913 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
|
3914 (int)(reginput - regline), |
4694
efc4fb311d5d
updated for version 7.3.1094
Bram Moolenaar <bram@vim.org>
parents:
4692
diff
changeset
|
3915 (int)(nfa_endp->se_u.ptr - reginput)); |
4682
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3916 } |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3917 #endif |
4694
efc4fb311d5d
updated for version 7.3.1094
Bram Moolenaar <bram@vim.org>
parents:
4692
diff
changeset
|
3918 /* 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
|
3919 if (nfa_endp != NULL && (REG_MULTI |
efc4fb311d5d
updated for version 7.3.1094
Bram Moolenaar <bram@vim.org>
parents:
4692
diff
changeset
|
3920 ? (reglnum != nfa_endp->se_u.pos.lnum |
4682
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3921 || (int)(reginput - regline) |
4694
efc4fb311d5d
updated for version 7.3.1094
Bram Moolenaar <bram@vim.org>
parents:
4692
diff
changeset
|
3922 != nfa_endp->se_u.pos.col) |
efc4fb311d5d
updated for version 7.3.1094
Bram Moolenaar <bram@vim.org>
parents:
4692
diff
changeset
|
3923 : reginput != nfa_endp->se_u.ptr)) |
4682
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3924 break; |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3925 |
4661
0dce3d812e7a
updated for version 7.3.1078
Bram Moolenaar <bram@vim.org>
parents:
4657
diff
changeset
|
3926 /* do not set submatches for \@! */ |
0dce3d812e7a
updated for version 7.3.1078
Bram Moolenaar <bram@vim.org>
parents:
4657
diff
changeset
|
3927 if (!t->state->negated) |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3928 { |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3929 copy_sub(&m->norm, &t->subs.norm); |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3930 #ifdef FEAT_SYN_HL |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3931 copy_sub(&m->synt, &t->subs.synt); |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3932 #endif |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3933 } |
4561
4d81fdda8f35
updated for version 7.3.1028
Bram Moolenaar <bram@vim.org>
parents:
4559
diff
changeset
|
3934 nfa_match = TRUE; |
4444 | 3935 } |
3936 break; | |
3937 | |
3938 case NFA_START_INVISIBLE: | |
4682
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3939 case NFA_START_INVISIBLE_BEFORE: |
4669
2d15582e132f
updated for version 7.3.1082
Bram Moolenaar <bram@vim.org>
parents:
4667
diff
changeset
|
3940 { |
4682
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3941 char_u *save_reginput = reginput; |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3942 char_u *save_regline = regline; |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3943 int save_reglnum = reglnum; |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3944 int save_nfa_match = nfa_match; |
4694
efc4fb311d5d
updated for version 7.3.1094
Bram Moolenaar <bram@vim.org>
parents:
4692
diff
changeset
|
3945 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
|
3946 save_se_T endpos; |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3947 save_se_T *endposp = NULL; |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3948 |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3949 if (t->state->c == NFA_START_INVISIBLE_BEFORE) |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3950 { |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3951 /* 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
|
3952 endposp = &endpos; |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3953 if (REG_MULTI) |
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 endpos.se_u.pos.col = (int)(reginput - regline); |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3956 endpos.se_u.pos.lnum = reglnum; |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3957 } |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3958 else |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3959 endpos.se_u.ptr = reginput; |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3960 |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3961 /* 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
|
3962 * 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
|
3963 * not matching "\@<!". |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3964 * 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
|
3965 * 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
|
3966 if (t->state->val <= 0) |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3967 { |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3968 if (REG_MULTI) |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3969 { |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3970 regline = reg_getline(--reglnum); |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3971 if (regline == NULL) |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3972 /* can't go before the first line */ |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3973 regline = reg_getline(++reglnum); |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3974 } |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3975 reginput = regline; |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3976 } |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3977 else |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3978 { |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3979 if (REG_MULTI |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3980 && (int)(reginput - regline) < t->state->val) |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3981 { |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3982 /* 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
|
3983 * previous line. */ |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3984 regline = reg_getline(--reglnum); |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3985 if (regline == NULL) |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3986 { |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3987 /* can't go before the first line */ |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3988 regline = reg_getline(++reglnum); |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3989 reginput = regline; |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3990 } |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3991 else |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3992 reginput = regline + STRLEN(regline); |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3993 } |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3994 if ((int)(reginput - regline) >= t->state->val) |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3995 { |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3996 reginput -= t->state->val; |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3997 #ifdef FEAT_MBYTE |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3998 if (has_mbyte) |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3999 reginput -= mb_head_off(regline, reginput); |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
4000 #endif |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
4001 } |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
4002 else |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
4003 reginput = regline; |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
4004 } |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
4005 } |
4669
2d15582e132f
updated for version 7.3.1082
Bram Moolenaar <bram@vim.org>
parents:
4667
diff
changeset
|
4006 |
2d15582e132f
updated for version 7.3.1082
Bram Moolenaar <bram@vim.org>
parents:
4667
diff
changeset
|
4007 /* 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
|
4008 * 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
|
4009 * NFA_END_INVISIBLE */ |
4444 | 4010 if (listids == NULL) |
4011 { | |
4669
2d15582e132f
updated for version 7.3.1082
Bram Moolenaar <bram@vim.org>
parents:
4667
diff
changeset
|
4012 listids = (int *)lalloc(sizeof(int) * nstate, TRUE); |
4444 | 4013 if (listids == NULL) |
4014 { | |
4015 EMSG(_("E878: (NFA) Could not allocate memory for branch traversal!")); | |
4016 return 0; | |
4017 } | |
4018 } | |
4019 #ifdef ENABLE_LOG | |
4020 if (log_fd != stderr) | |
4021 fclose(log_fd); | |
4022 log_fd = NULL; | |
4023 #endif | |
4024 /* Have to clear the listid field of the NFA nodes, so that | |
4025 * nfa_regmatch() and addstate() can run properly after | |
4026 * recursion. */ | |
4027 nfa_save_listids(start, listids); | |
4028 nfa_set_null_listids(start); | |
4694
efc4fb311d5d
updated for version 7.3.1094
Bram Moolenaar <bram@vim.org>
parents:
4692
diff
changeset
|
4029 nfa_endp = endposp; |
efc4fb311d5d
updated for version 7.3.1094
Bram Moolenaar <bram@vim.org>
parents:
4692
diff
changeset
|
4030 result = nfa_regmatch(t->state->out, submatch, m); |
4444 | 4031 nfa_set_neg_listids(start); |
4032 nfa_restore_listids(start, listids); | |
4669
2d15582e132f
updated for version 7.3.1082
Bram Moolenaar <bram@vim.org>
parents:
4667
diff
changeset
|
4033 |
2d15582e132f
updated for version 7.3.1082
Bram Moolenaar <bram@vim.org>
parents:
4667
diff
changeset
|
4034 /* restore position in input text */ |
2d15582e132f
updated for version 7.3.1082
Bram Moolenaar <bram@vim.org>
parents:
4667
diff
changeset
|
4035 reginput = save_reginput; |
2d15582e132f
updated for version 7.3.1082
Bram Moolenaar <bram@vim.org>
parents:
4667
diff
changeset
|
4036 regline = save_regline; |
2d15582e132f
updated for version 7.3.1082
Bram Moolenaar <bram@vim.org>
parents:
4667
diff
changeset
|
4037 reglnum = save_reglnum; |
2d15582e132f
updated for version 7.3.1082
Bram Moolenaar <bram@vim.org>
parents:
4667
diff
changeset
|
4038 nfa_match = save_nfa_match; |
4694
efc4fb311d5d
updated for version 7.3.1094
Bram Moolenaar <bram@vim.org>
parents:
4692
diff
changeset
|
4039 nfa_endp = save_nfa_endp; |
4444 | 4040 |
4041 #ifdef ENABLE_LOG | |
4531
1be43c095aff
updated for version 7.3.1013
Bram Moolenaar <bram@vim.org>
parents:
4529
diff
changeset
|
4042 log_fd = fopen(NFA_REGEXP_RUN_LOG, "a"); |
4444 | 4043 if (log_fd != NULL) |
4044 { | |
4045 fprintf(log_fd, "****************************\n"); | |
4046 fprintf(log_fd, "FINISHED RUNNING nfa_regmatch() recursively\n"); | |
4047 fprintf(log_fd, "MATCH = %s\n", result == TRUE ? "OK" : "FALSE"); | |
4048 fprintf(log_fd, "****************************\n"); | |
4049 } | |
4050 else | |
4051 { | |
4052 EMSG(_("Could not open temporary log file for writing, displaying on stderr ... ")); | |
4053 log_fd = stderr; | |
4054 } | |
4055 #endif | |
4661
0dce3d812e7a
updated for version 7.3.1078
Bram Moolenaar <bram@vim.org>
parents:
4657
diff
changeset
|
4056 /* 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
|
4057 if (result != t->state->negated) |
4444 | 4058 { |
4059 /* Copy submatch info from the recursive call */ | |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4060 copy_sub_off(&t->subs.norm, &m->norm); |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4061 #ifdef FEAT_SYN_HL |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4062 copy_sub_off(&t->subs.synt, &m->synt); |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4063 #endif |
4657
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
4064 |
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
4065 /* 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
|
4066 * 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
|
4067 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
|
4068 &listidx); |
4444 | 4069 } |
4070 break; | |
4669
2d15582e132f
updated for version 7.3.1082
Bram Moolenaar <bram@vim.org>
parents:
4667
diff
changeset
|
4071 } |
4444 | 4072 |
4073 case NFA_BOL: | |
4074 if (reginput == regline) | |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4075 addstate_here(thislist, t->state->out, &t->subs, &listidx); |
4444 | 4076 break; |
4077 | |
4078 case NFA_EOL: | |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4079 if (curc == NUL) |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4080 addstate_here(thislist, t->state->out, &t->subs, &listidx); |
4444 | 4081 break; |
4082 | |
4083 case NFA_BOW: | |
4084 { | |
4085 int bow = TRUE; | |
4086 | |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4087 if (curc == NUL) |
4444 | 4088 bow = FALSE; |
4089 #ifdef FEAT_MBYTE | |
4090 else if (has_mbyte) | |
4091 { | |
4092 int this_class; | |
4093 | |
4094 /* Get class of current and previous char (if it exists). */ | |
4503 | 4095 this_class = mb_get_class_buf(reginput, reg_buf); |
4444 | 4096 if (this_class <= 1) |
4097 bow = FALSE; | |
4098 else if (reg_prev_class() == this_class) | |
4099 bow = FALSE; | |
4100 } | |
4101 #endif | |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4102 else if (!vim_iswordc_buf(curc, reg_buf) |
4503 | 4103 || (reginput > regline |
4104 && vim_iswordc_buf(reginput[-1], reg_buf))) | |
4444 | 4105 bow = FALSE; |
4106 if (bow) | |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4107 addstate_here(thislist, t->state->out, &t->subs, &listidx); |
4444 | 4108 break; |
4109 } | |
4110 | |
4111 case NFA_EOW: | |
4112 { | |
4113 int eow = TRUE; | |
4114 | |
4115 if (reginput == regline) | |
4116 eow = FALSE; | |
4117 #ifdef FEAT_MBYTE | |
4118 else if (has_mbyte) | |
4119 { | |
4120 int this_class, prev_class; | |
4121 | |
4122 /* Get class of current and previous char (if it exists). */ | |
4503 | 4123 this_class = mb_get_class_buf(reginput, reg_buf); |
4444 | 4124 prev_class = reg_prev_class(); |
4125 if (this_class == prev_class | |
4126 || prev_class == 0 || prev_class == 1) | |
4127 eow = FALSE; | |
4128 } | |
4129 #endif | |
4503 | 4130 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
|
4131 || (reginput[0] != NUL |
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4132 && vim_iswordc_buf(curc, reg_buf))) |
4444 | 4133 eow = FALSE; |
4134 if (eow) | |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4135 addstate_here(thislist, t->state->out, &t->subs, &listidx); |
4444 | 4136 break; |
4137 } | |
4138 | |
4671
b3c59716e700
updated for version 7.3.1083
Bram Moolenaar <bram@vim.org>
parents:
4669
diff
changeset
|
4139 case NFA_BOF: |
b3c59716e700
updated for version 7.3.1083
Bram Moolenaar <bram@vim.org>
parents:
4669
diff
changeset
|
4140 if (reglnum == 0 && reginput == regline |
b3c59716e700
updated for version 7.3.1083
Bram Moolenaar <bram@vim.org>
parents:
4669
diff
changeset
|
4141 && (!REG_MULTI || reg_firstlnum == 1)) |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4142 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
|
4143 break; |
b3c59716e700
updated for version 7.3.1083
Bram Moolenaar <bram@vim.org>
parents:
4669
diff
changeset
|
4144 |
b3c59716e700
updated for version 7.3.1083
Bram Moolenaar <bram@vim.org>
parents:
4669
diff
changeset
|
4145 case NFA_EOF: |
b3c59716e700
updated for version 7.3.1083
Bram Moolenaar <bram@vim.org>
parents:
4669
diff
changeset
|
4146 if (reglnum == reg_maxline && curc == NUL) |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4147 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
|
4148 break; |
b3c59716e700
updated for version 7.3.1083
Bram Moolenaar <bram@vim.org>
parents:
4669
diff
changeset
|
4149 |
4527
55bcaa1d2749
updated for version 7.3.1011
Bram Moolenaar <bram@vim.org>
parents:
4525
diff
changeset
|
4150 #ifdef FEAT_MBYTE |
4444 | 4151 case NFA_COMPOSING: |
4527
55bcaa1d2749
updated for version 7.3.1011
Bram Moolenaar <bram@vim.org>
parents:
4525
diff
changeset
|
4152 { |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4153 int mc = curc; |
4531
1be43c095aff
updated for version 7.3.1013
Bram Moolenaar <bram@vim.org>
parents:
4529
diff
changeset
|
4154 int len = 0; |
1be43c095aff
updated for version 7.3.1013
Bram Moolenaar <bram@vim.org>
parents:
4529
diff
changeset
|
4155 nfa_state_T *end; |
1be43c095aff
updated for version 7.3.1013
Bram Moolenaar <bram@vim.org>
parents:
4529
diff
changeset
|
4156 nfa_state_T *sta; |
4547
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4157 int cchars[MAX_MCO]; |
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4158 int ccount = 0; |
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4159 int j; |
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4160 |
4444 | 4161 sta = t->state->out; |
4527
55bcaa1d2749
updated for version 7.3.1011
Bram Moolenaar <bram@vim.org>
parents:
4525
diff
changeset
|
4162 len = 0; |
4535
45f97c349537
updated for version 7.3.1015
Bram Moolenaar <bram@vim.org>
parents:
4533
diff
changeset
|
4163 if (utf_iscomposing(sta->c)) |
45f97c349537
updated for version 7.3.1015
Bram Moolenaar <bram@vim.org>
parents:
4533
diff
changeset
|
4164 { |
45f97c349537
updated for version 7.3.1015
Bram Moolenaar <bram@vim.org>
parents:
4533
diff
changeset
|
4165 /* Only match composing character(s), ignore base |
45f97c349537
updated for version 7.3.1015
Bram Moolenaar <bram@vim.org>
parents:
4533
diff
changeset
|
4166 * character. Used for ".{composing}" and "{composing}" |
45f97c349537
updated for version 7.3.1015
Bram Moolenaar <bram@vim.org>
parents:
4533
diff
changeset
|
4167 * (no preceding character). */ |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4168 len += mb_char2len(mc); |
4535
45f97c349537
updated for version 7.3.1015
Bram Moolenaar <bram@vim.org>
parents:
4533
diff
changeset
|
4169 } |
4551
f0c37f5cf4ea
updated for version 7.3.1023
Bram Moolenaar <bram@vim.org>
parents:
4549
diff
changeset
|
4170 if (ireg_icombine && len == 0) |
4444 | 4171 { |
4535
45f97c349537
updated for version 7.3.1015
Bram Moolenaar <bram@vim.org>
parents:
4533
diff
changeset
|
4172 /* If \Z was present, then ignore composing characters. |
45f97c349537
updated for version 7.3.1015
Bram Moolenaar <bram@vim.org>
parents:
4533
diff
changeset
|
4173 * 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
|
4174 /* TODO: How about negated? */ |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4175 if (len == 0 && sta->c != curc) |
4529
432a6b8c7d93
updated for version 7.3.1012
Bram Moolenaar <bram@vim.org>
parents:
4527
diff
changeset
|
4176 result = FAIL; |
4547
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4177 else |
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4178 result = OK; |
4529
432a6b8c7d93
updated for version 7.3.1012
Bram Moolenaar <bram@vim.org>
parents:
4527
diff
changeset
|
4179 while (sta->c != NFA_END_COMPOSING) |
432a6b8c7d93
updated for version 7.3.1012
Bram Moolenaar <bram@vim.org>
parents:
4527
diff
changeset
|
4180 sta = sta->out; |
4444 | 4181 } |
4547
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4182 |
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4183 /* Check base character matches first, unless ignored. */ |
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4184 else if (len > 0 || mc == sta->c) |
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4185 { |
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4186 if (len == 0) |
4529
432a6b8c7d93
updated for version 7.3.1012
Bram Moolenaar <bram@vim.org>
parents:
4527
diff
changeset
|
4187 { |
432a6b8c7d93
updated for version 7.3.1012
Bram Moolenaar <bram@vim.org>
parents:
4527
diff
changeset
|
4188 len += mb_char2len(mc); |
432a6b8c7d93
updated for version 7.3.1012
Bram Moolenaar <bram@vim.org>
parents:
4527
diff
changeset
|
4189 sta = sta->out; |
432a6b8c7d93
updated for version 7.3.1012
Bram Moolenaar <bram@vim.org>
parents:
4527
diff
changeset
|
4190 } |
4444 | 4191 |
4547
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4192 /* 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
|
4193 * Get them into cchars[] first. */ |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4194 while (len < clen) |
4547
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 mc = mb_ptr2char(reginput + len); |
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4197 cchars[ccount++] = mc; |
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4198 len += mb_char2len(mc); |
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4199 if (ccount == MAX_MCO) |
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4200 break; |
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4201 } |
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4202 |
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4203 /* 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
|
4204 * 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
|
4205 * composing chars are matched. */ |
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4206 result = OK; |
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4207 while (sta->c != NFA_END_COMPOSING) |
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4208 { |
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4209 for (j = 0; j < ccount; ++j) |
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4210 if (cchars[j] == sta->c) |
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4211 break; |
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4212 if (j == ccount) |
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4213 { |
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4214 result = FAIL; |
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4215 break; |
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4216 } |
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4217 sta = sta->out; |
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4218 } |
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4219 } |
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4220 else |
4525
36ddcf4cecbc
updated for version 7.3.1010
Bram Moolenaar <bram@vim.org>
parents:
4517
diff
changeset
|
4221 result = FAIL; |
4547
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4222 |
4527
55bcaa1d2749
updated for version 7.3.1011
Bram Moolenaar <bram@vim.org>
parents:
4525
diff
changeset
|
4223 end = t->state->out1; /* NFA_END_COMPOSING */ |
4444 | 4224 ADD_POS_NEG_STATE(end); |
4225 break; | |
4527
55bcaa1d2749
updated for version 7.3.1011
Bram Moolenaar <bram@vim.org>
parents:
4525
diff
changeset
|
4226 } |
55bcaa1d2749
updated for version 7.3.1011
Bram Moolenaar <bram@vim.org>
parents:
4525
diff
changeset
|
4227 #endif |
4444 | 4228 |
4229 case NFA_NEWL: | |
4555
b2946c06d1b6
updated for version 7.3.1025
Bram Moolenaar <bram@vim.org>
parents:
4553
diff
changeset
|
4230 if (curc == NUL && !reg_line_lbr && REG_MULTI |
b2946c06d1b6
updated for version 7.3.1025
Bram Moolenaar <bram@vim.org>
parents:
4553
diff
changeset
|
4231 && reglnum <= reg_maxline) |
4444 | 4232 { |
4515
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
4233 go_to_nextline = TRUE; |
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
4234 /* 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
|
4235 * at the start of the next line. */ |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4236 addstate(nextlist, t->state->out, &t->subs, -1); |
4444 | 4237 } |
4555
b2946c06d1b6
updated for version 7.3.1025
Bram Moolenaar <bram@vim.org>
parents:
4553
diff
changeset
|
4238 else if (curc == '\n' && reg_line_lbr) |
b2946c06d1b6
updated for version 7.3.1025
Bram Moolenaar <bram@vim.org>
parents:
4553
diff
changeset
|
4239 { |
b2946c06d1b6
updated for version 7.3.1025
Bram Moolenaar <bram@vim.org>
parents:
4553
diff
changeset
|
4240 /* 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
|
4241 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
|
4242 } |
4444 | 4243 break; |
4244 | |
4245 case NFA_CLASS_ALNUM: | |
4246 case NFA_CLASS_ALPHA: | |
4247 case NFA_CLASS_BLANK: | |
4248 case NFA_CLASS_CNTRL: | |
4249 case NFA_CLASS_DIGIT: | |
4250 case NFA_CLASS_GRAPH: | |
4251 case NFA_CLASS_LOWER: | |
4252 case NFA_CLASS_PRINT: | |
4253 case NFA_CLASS_PUNCT: | |
4254 case NFA_CLASS_SPACE: | |
4255 case NFA_CLASS_UPPER: | |
4256 case NFA_CLASS_XDIGIT: | |
4257 case NFA_CLASS_TAB: | |
4258 case NFA_CLASS_RETURN: | |
4259 case NFA_CLASS_BACKSPACE: | |
4260 case NFA_CLASS_ESCAPE: | |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4261 result = check_char_class(t->state->c, curc); |
4444 | 4262 ADD_POS_NEG_STATE(t->state); |
4263 break; | |
4264 | |
4265 case NFA_END_NEG_RANGE: | |
4266 /* This follows a series of negated nodes, like: | |
4267 * 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
|
4268 if (curc > 0) |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4269 addstate(nextlist, t->state->out, &t->subs, clen); |
4444 | 4270 break; |
4271 | |
4272 case NFA_ANY: | |
4515
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
4273 /* 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
|
4274 if (curc > 0) |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4275 addstate(nextlist, t->state->out, &t->subs, clen); |
4444 | 4276 break; |
4277 | |
4278 /* | |
4279 * Character classes like \a for alpha, \d for digit etc. | |
4280 */ | |
4281 case NFA_IDENT: /* \i */ | |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4282 result = vim_isIDc(curc); |
4444 | 4283 ADD_POS_NEG_STATE(t->state); |
4284 break; | |
4285 | |
4286 case NFA_SIDENT: /* \I */ | |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4287 result = !VIM_ISDIGIT(curc) && vim_isIDc(curc); |
4444 | 4288 ADD_POS_NEG_STATE(t->state); |
4289 break; | |
4290 | |
4291 case NFA_KWORD: /* \k */ | |
4503 | 4292 result = vim_iswordp_buf(reginput, reg_buf); |
4444 | 4293 ADD_POS_NEG_STATE(t->state); |
4294 break; | |
4295 | |
4296 case NFA_SKWORD: /* \K */ | |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4297 result = !VIM_ISDIGIT(curc) |
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4298 && vim_iswordp_buf(reginput, reg_buf); |
4444 | 4299 ADD_POS_NEG_STATE(t->state); |
4300 break; | |
4301 | |
4302 case NFA_FNAME: /* \f */ | |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4303 result = vim_isfilec(curc); |
4444 | 4304 ADD_POS_NEG_STATE(t->state); |
4305 break; | |
4306 | |
4307 case NFA_SFNAME: /* \F */ | |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4308 result = !VIM_ISDIGIT(curc) && vim_isfilec(curc); |
4444 | 4309 ADD_POS_NEG_STATE(t->state); |
4310 break; | |
4311 | |
4312 case NFA_PRINT: /* \p */ | |
4470 | 4313 result = ptr2cells(reginput) == 1; |
4444 | 4314 ADD_POS_NEG_STATE(t->state); |
4315 break; | |
4316 | |
4317 case NFA_SPRINT: /* \P */ | |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4318 result = !VIM_ISDIGIT(curc) && ptr2cells(reginput) == 1; |
4444 | 4319 ADD_POS_NEG_STATE(t->state); |
4320 break; | |
4321 | |
4322 case NFA_WHITE: /* \s */ | |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4323 result = vim_iswhite(curc); |
4444 | 4324 ADD_POS_NEG_STATE(t->state); |
4325 break; | |
4326 | |
4327 case NFA_NWHITE: /* \S */ | |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4328 result = curc != NUL && !vim_iswhite(curc); |
4444 | 4329 ADD_POS_NEG_STATE(t->state); |
4330 break; | |
4331 | |
4332 case NFA_DIGIT: /* \d */ | |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4333 result = ri_digit(curc); |
4444 | 4334 ADD_POS_NEG_STATE(t->state); |
4335 break; | |
4336 | |
4337 case NFA_NDIGIT: /* \D */ | |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4338 result = curc != NUL && !ri_digit(curc); |
4444 | 4339 ADD_POS_NEG_STATE(t->state); |
4340 break; | |
4341 | |
4342 case NFA_HEX: /* \x */ | |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4343 result = ri_hex(curc); |
4444 | 4344 ADD_POS_NEG_STATE(t->state); |
4345 break; | |
4346 | |
4347 case NFA_NHEX: /* \X */ | |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4348 result = curc != NUL && !ri_hex(curc); |
4444 | 4349 ADD_POS_NEG_STATE(t->state); |
4350 break; | |
4351 | |
4352 case NFA_OCTAL: /* \o */ | |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4353 result = ri_octal(curc); |
4444 | 4354 ADD_POS_NEG_STATE(t->state); |
4355 break; | |
4356 | |
4357 case NFA_NOCTAL: /* \O */ | |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4358 result = curc != NUL && !ri_octal(curc); |
4444 | 4359 ADD_POS_NEG_STATE(t->state); |
4360 break; | |
4361 | |
4362 case NFA_WORD: /* \w */ | |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4363 result = ri_word(curc); |
4444 | 4364 ADD_POS_NEG_STATE(t->state); |
4365 break; | |
4366 | |
4367 case NFA_NWORD: /* \W */ | |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4368 result = curc != NUL && !ri_word(curc); |
4444 | 4369 ADD_POS_NEG_STATE(t->state); |
4370 break; | |
4371 | |
4372 case NFA_HEAD: /* \h */ | |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4373 result = ri_head(curc); |
4444 | 4374 ADD_POS_NEG_STATE(t->state); |
4375 break; | |
4376 | |
4377 case NFA_NHEAD: /* \H */ | |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4378 result = curc != NUL && !ri_head(curc); |
4444 | 4379 ADD_POS_NEG_STATE(t->state); |
4380 break; | |
4381 | |
4382 case NFA_ALPHA: /* \a */ | |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4383 result = ri_alpha(curc); |
4444 | 4384 ADD_POS_NEG_STATE(t->state); |
4385 break; | |
4386 | |
4387 case NFA_NALPHA: /* \A */ | |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4388 result = curc != NUL && !ri_alpha(curc); |
4444 | 4389 ADD_POS_NEG_STATE(t->state); |
4390 break; | |
4391 | |
4392 case NFA_LOWER: /* \l */ | |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4393 result = ri_lower(curc); |
4444 | 4394 ADD_POS_NEG_STATE(t->state); |
4395 break; | |
4396 | |
4397 case NFA_NLOWER: /* \L */ | |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4398 result = curc != NUL && !ri_lower(curc); |
4444 | 4399 ADD_POS_NEG_STATE(t->state); |
4400 break; | |
4401 | |
4402 case NFA_UPPER: /* \u */ | |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4403 result = ri_upper(curc); |
4444 | 4404 ADD_POS_NEG_STATE(t->state); |
4405 break; | |
4406 | |
4407 case NFA_NUPPER: /* \U */ | |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4408 result = curc != NUL && !ri_upper(curc); |
4444 | 4409 ADD_POS_NEG_STATE(t->state); |
4410 break; | |
4411 | |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4412 case NFA_BACKREF1: |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4413 case NFA_BACKREF2: |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4414 case NFA_BACKREF3: |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4415 case NFA_BACKREF4: |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4416 case NFA_BACKREF5: |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4417 case NFA_BACKREF6: |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4418 case NFA_BACKREF7: |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4419 case NFA_BACKREF8: |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4420 case NFA_BACKREF9: |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4421 #ifdef FEAT_SYN_HL |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4422 case NFA_ZREF1: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4423 case NFA_ZREF2: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4424 case NFA_ZREF3: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4425 case NFA_ZREF4: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4426 case NFA_ZREF5: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4427 case NFA_ZREF6: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4428 case NFA_ZREF7: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4429 case NFA_ZREF8: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4430 case NFA_ZREF9: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4431 #endif |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4432 /* \1 .. \9 \z1 .. \z9 */ |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4433 { |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4434 int subidx; |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4435 int bytelen; |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4436 |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4437 if (t->state->c <= NFA_BACKREF9) |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4438 { |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4439 subidx = t->state->c - NFA_BACKREF1 + 1; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4440 result = match_backref(&t->subs.norm, subidx, &bytelen); |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4441 } |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4442 #ifdef FEAT_SYN_HL |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4443 else |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4444 { |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4445 subidx = t->state->c - NFA_ZREF1 + 1; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4446 result = match_zref(subidx, &bytelen); |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4447 } |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4448 #endif |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4449 |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4450 if (result) |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4451 { |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4452 if (bytelen == 0) |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4453 { |
4692
08fbb1ce1bc5
updated for version 7.3.1093
Bram Moolenaar <bram@vim.org>
parents:
4690
diff
changeset
|
4454 /* 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
|
4455 * used next */ |
08fbb1ce1bc5
updated for version 7.3.1093
Bram Moolenaar <bram@vim.org>
parents:
4690
diff
changeset
|
4456 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
|
4457 &listidx); |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4458 } |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4459 else if (bytelen <= clen) |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4460 { |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4461 /* match current character, jump ahead to out of |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4462 * NFA_SKIP */ |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4463 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
|
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 /* skip ofer the matched characters, set character |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4471 * count in NFA_SKIP */ |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4472 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
|
4473 nextlist->t[nextlist->n - 1].count = bytelen - clen; |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4474 #ifdef ENABLE_LOG |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4475 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
|
4476 #endif |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4477 } |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4478 |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4479 } |
4482 | 4480 break; |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4481 } |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4482 case NFA_SKIP: |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4483 /* charater of previous matching \1 .. \9 */ |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4484 if (t->count - clen <= 0) |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4485 { |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4486 /* end of match, go to what follows */ |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4487 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
|
4488 #ifdef ENABLE_LOG |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4489 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
|
4490 #endif |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4491 } |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4492 else |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4493 { |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4494 /* add state again with decremented count */ |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4495 addstate(nextlist, t->state, &t->subs, 0); |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4496 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
|
4497 #ifdef ENABLE_LOG |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4498 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
|
4499 #endif |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4500 } |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4501 break; |
4482 | 4502 |
4503 case NFA_SKIP_CHAR: | |
4504 case NFA_ZSTART: | |
4569
f262fb02889d
updated for version 7.3.1032
Bram Moolenaar <bram@vim.org>
parents:
4567
diff
changeset
|
4505 case NFA_ZEND: |
4482 | 4506 /* TODO: should not happen? */ |
4507 break; | |
4508 | |
4583
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4509 case NFA_LNUM: |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4510 case NFA_LNUM_GT: |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4511 case NFA_LNUM_LT: |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4512 result = (REG_MULTI && |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4513 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
|
4514 (long_u)(reglnum + reg_firstlnum))); |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4515 if (result) |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4516 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
|
4517 break; |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4518 |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4519 case NFA_COL: |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4520 case NFA_COL_GT: |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4521 case NFA_COL_LT: |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4522 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
|
4523 (long_u)(reginput - regline) + 1); |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4524 if (result) |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4525 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
|
4526 break; |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4527 |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4528 case NFA_VCOL: |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4529 case NFA_VCOL_GT: |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4530 case NFA_VCOL_LT: |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4531 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
|
4532 (long_u)win_linetabsize( |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4533 reg_win == NULL ? curwin : reg_win, |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4534 regline, (colnr_T)(reginput - regline)) + 1); |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4535 if (result) |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4536 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
|
4537 break; |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4538 |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4539 case NFA_CURSOR: |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4540 result = (reg_win != NULL |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4541 && (reglnum + reg_firstlnum == reg_win->w_cursor.lnum) |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4542 && ((colnr_T)(reginput - regline) |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4543 == reg_win->w_cursor.col)); |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4544 if (result) |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4545 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
|
4546 break; |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4547 |
4444 | 4548 default: /* regular character */ |
4559
04086e297563
updated for version 7.3.1027
Bram Moolenaar <bram@vim.org>
parents:
4557
diff
changeset
|
4549 { |
04086e297563
updated for version 7.3.1027
Bram Moolenaar <bram@vim.org>
parents:
4557
diff
changeset
|
4550 int c = t->state->c; |
04086e297563
updated for version 7.3.1027
Bram Moolenaar <bram@vim.org>
parents:
4557
diff
changeset
|
4551 |
4482 | 4552 /* TODO: put this in #ifdef later */ |
4559
04086e297563
updated for version 7.3.1027
Bram Moolenaar <bram@vim.org>
parents:
4557
diff
changeset
|
4553 if (c < -256) |
04086e297563
updated for version 7.3.1027
Bram Moolenaar <bram@vim.org>
parents:
4557
diff
changeset
|
4554 EMSGN("INTERNAL: Negative state char: %ld", c); |
04086e297563
updated for version 7.3.1027
Bram Moolenaar <bram@vim.org>
parents:
4557
diff
changeset
|
4555 if (is_Magic(c)) |
04086e297563
updated for version 7.3.1027
Bram Moolenaar <bram@vim.org>
parents:
4557
diff
changeset
|
4556 c = un_Magic(c); |
04086e297563
updated for version 7.3.1027
Bram Moolenaar <bram@vim.org>
parents:
4557
diff
changeset
|
4557 result = (c == curc); |
04086e297563
updated for version 7.3.1027
Bram Moolenaar <bram@vim.org>
parents:
4557
diff
changeset
|
4558 |
04086e297563
updated for version 7.3.1027
Bram Moolenaar <bram@vim.org>
parents:
4557
diff
changeset
|
4559 if (!result && ireg_ic) |
04086e297563
updated for version 7.3.1027
Bram Moolenaar <bram@vim.org>
parents:
4557
diff
changeset
|
4560 result = MB_TOLOWER(c) == MB_TOLOWER(curc); |
4527
55bcaa1d2749
updated for version 7.3.1011
Bram Moolenaar <bram@vim.org>
parents:
4525
diff
changeset
|
4561 #ifdef FEAT_MBYTE |
55bcaa1d2749
updated for version 7.3.1011
Bram Moolenaar <bram@vim.org>
parents:
4525
diff
changeset
|
4562 /* 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
|
4563 * 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
|
4564 * character uses NFA_COMPOSING above. */ |
55bcaa1d2749
updated for version 7.3.1011
Bram Moolenaar <bram@vim.org>
parents:
4525
diff
changeset
|
4565 if (result && enc_utf8 && !ireg_icombine |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4566 && clen != utf_char2len(curc)) |
4527
55bcaa1d2749
updated for version 7.3.1011
Bram Moolenaar <bram@vim.org>
parents:
4525
diff
changeset
|
4567 result = FALSE; |
55bcaa1d2749
updated for version 7.3.1011
Bram Moolenaar <bram@vim.org>
parents:
4525
diff
changeset
|
4568 #endif |
4444 | 4569 ADD_POS_NEG_STATE(t->state); |
4570 break; | |
4559
04086e297563
updated for version 7.3.1027
Bram Moolenaar <bram@vim.org>
parents:
4557
diff
changeset
|
4571 } |
4444 | 4572 } |
4573 | |
4574 } /* for (thislist = thislist; thislist->state; thislist++) */ | |
4575 | |
4557
888c12c899e5
updated for version 7.3.1026
Bram Moolenaar <bram@vim.org>
parents:
4555
diff
changeset
|
4576 /* 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
|
4577 * start state to the list of states. |
888c12c899e5
updated for version 7.3.1026
Bram Moolenaar <bram@vim.org>
parents:
4555
diff
changeset
|
4578 * 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
|
4579 * matters! |
888c12c899e5
updated for version 7.3.1026
Bram Moolenaar <bram@vim.org>
parents:
4555
diff
changeset
|
4580 * 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
|
4581 * 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
|
4582 * 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
|
4583 * 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
|
4584 if (nfa_match == FALSE |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4585 && ((start->c == NFA_MOPEN |
4682
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
4586 && reglnum == 0 |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
4587 && clen != 0 |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
4588 && (ireg_maxcol == 0 |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
4589 || (colnr_T)(reginput - regline) < ireg_maxcol)) |
4694
efc4fb311d5d
updated for version 7.3.1094
Bram Moolenaar <bram@vim.org>
parents:
4692
diff
changeset
|
4590 || (nfa_endp != NULL |
4682
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
4591 && (REG_MULTI |
4694
efc4fb311d5d
updated for version 7.3.1094
Bram Moolenaar <bram@vim.org>
parents:
4692
diff
changeset
|
4592 ? (reglnum < nfa_endp->se_u.pos.lnum |
efc4fb311d5d
updated for version 7.3.1094
Bram Moolenaar <bram@vim.org>
parents:
4692
diff
changeset
|
4593 || (reglnum == nfa_endp->se_u.pos.lnum |
4682
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
4594 && (int)(reginput - regline) |
4694
efc4fb311d5d
updated for version 7.3.1094
Bram Moolenaar <bram@vim.org>
parents:
4692
diff
changeset
|
4595 < nfa_endp->se_u.pos.col)) |
efc4fb311d5d
updated for version 7.3.1094
Bram Moolenaar <bram@vim.org>
parents:
4692
diff
changeset
|
4596 : reginput < nfa_endp->se_u.ptr)))) |
4444 | 4597 { |
4598 #ifdef ENABLE_LOG | |
4599 fprintf(log_fd, "(---) STARTSTATE\n"); | |
4600 #endif | |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4601 addstate(nextlist, start, m, clen); |
4444 | 4602 } |
4603 | |
4604 #ifdef ENABLE_LOG | |
4605 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
|
4606 { |
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4607 int i; |
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4608 |
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4609 for (i = 0; i < thislist->n; i++) |
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4610 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
|
4611 } |
4444 | 4612 fprintf(log_fd, "\n"); |
4613 #endif | |
4614 | |
4615 nextchar: | |
4515
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
4616 /* 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
|
4617 * finish. */ |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4618 if (clen != 0) |
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4619 reginput += clen; |
4694
efc4fb311d5d
updated for version 7.3.1094
Bram Moolenaar <bram@vim.org>
parents:
4692
diff
changeset
|
4620 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
|
4621 && reglnum < nfa_endp->se_u.pos.lnum)) |
4515
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
4622 reg_nextline(); |
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
4623 else |
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
4624 break; |
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
4625 } |
4444 | 4626 |
4627 #ifdef ENABLE_LOG | |
4628 if (log_fd != stderr) | |
4629 fclose(log_fd); | |
4630 log_fd = NULL; | |
4631 #endif | |
4632 | |
4633 theend: | |
4634 /* Free memory */ | |
4635 vim_free(list[0].t); | |
4636 vim_free(list[1].t); | |
4637 vim_free(list[2].t); | |
4561
4d81fdda8f35
updated for version 7.3.1028
Bram Moolenaar <bram@vim.org>
parents:
4559
diff
changeset
|
4638 vim_free(listids); |
4444 | 4639 #undef ADD_POS_NEG_STATE |
4460 | 4640 #ifdef NFA_REGEXP_DEBUG_LOG |
4444 | 4641 fclose(debug); |
4642 #endif | |
4643 | |
4561
4d81fdda8f35
updated for version 7.3.1028
Bram Moolenaar <bram@vim.org>
parents:
4559
diff
changeset
|
4644 return nfa_match; |
4444 | 4645 } |
4646 | |
4647 /* | |
4648 * Try match of "prog" with at regline["col"]. | |
4649 * Returns 0 for failure, number of lines contained in the match otherwise. | |
4650 */ | |
4651 static long | |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4652 nfa_regtry(prog, col) |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4653 nfa_regprog_T *prog; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4654 colnr_T col; |
4444 | 4655 { |
4656 int i; | |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4657 regsubs_T subs, m; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4658 nfa_state_T *start = prog->start; |
4444 | 4659 #ifdef ENABLE_LOG |
4660 FILE *f; | |
4661 #endif | |
4662 | |
4663 reginput = regline + col; | |
4664 need_clear_subexpr = TRUE; | |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4665 #ifdef FEAT_SYN_HL |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4666 /* Clear the external match subpointers if necessary. */ |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4667 if (prog->reghasz == REX_SET) |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4668 need_clear_zsubexpr = TRUE; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4669 #endif |
4444 | 4670 |
4671 #ifdef ENABLE_LOG | |
4531
1be43c095aff
updated for version 7.3.1013
Bram Moolenaar <bram@vim.org>
parents:
4529
diff
changeset
|
4672 f = fopen(NFA_REGEXP_RUN_LOG, "a"); |
4444 | 4673 if (f != NULL) |
4674 { | |
4675 fprintf(f, "\n\n\n\n\n\n\t\t=======================================================\n"); | |
4676 fprintf(f, " =======================================================\n"); | |
4677 #ifdef DEBUG | |
4678 fprintf(f, "\tRegexp is \"%s\"\n", nfa_regengine.expr); | |
4679 #endif | |
4680 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
|
4681 fprintf(f, " =======================================================\n\n"); |
4533
6a2005efa02b
updated for version 7.3.1014
Bram Moolenaar <bram@vim.org>
parents:
4531
diff
changeset
|
4682 nfa_print_state(f, start); |
4444 | 4683 fprintf(f, "\n\n"); |
4684 fclose(f); | |
4685 } | |
4686 else | |
4687 EMSG(_("Could not open temporary log file for writing ")); | |
4688 #endif | |
4689 | |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4690 clear_sub(&subs.norm); |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4691 clear_sub(&m.norm); |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4692 #ifdef FEAT_SYN_HL |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4693 clear_sub(&subs.synt); |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4694 clear_sub(&m.synt); |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4695 #endif |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4696 |
4694
efc4fb311d5d
updated for version 7.3.1094
Bram Moolenaar <bram@vim.org>
parents:
4692
diff
changeset
|
4697 if (nfa_regmatch(start, &subs, &m) == FALSE) |
4444 | 4698 return 0; |
4699 | |
4700 cleanup_subexpr(); | |
4701 if (REG_MULTI) | |
4702 { | |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4703 for (i = 0; i < subs.norm.in_use; i++) |
4444 | 4704 { |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4705 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
|
4706 reg_endpos[i] = subs.norm.list.multi[i].end; |
4444 | 4707 } |
4708 | |
4709 if (reg_startpos[0].lnum < 0) | |
4710 { | |
4711 reg_startpos[0].lnum = 0; | |
4712 reg_startpos[0].col = col; | |
4713 } | |
4714 if (reg_endpos[0].lnum < 0) | |
4715 { | |
4569
f262fb02889d
updated for version 7.3.1032
Bram Moolenaar <bram@vim.org>
parents:
4567
diff
changeset
|
4716 /* pattern has a \ze but it didn't match, use current end */ |
4444 | 4717 reg_endpos[0].lnum = reglnum; |
4718 reg_endpos[0].col = (int)(reginput - regline); | |
4719 } | |
4720 else | |
4721 /* Use line number of "\ze". */ | |
4722 reglnum = reg_endpos[0].lnum; | |
4723 } | |
4724 else | |
4725 { | |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4726 for (i = 0; i < subs.norm.in_use; i++) |
4444 | 4727 { |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4728 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
|
4729 reg_endp[i] = subs.norm.list.line[i].end; |
4444 | 4730 } |
4731 | |
4732 if (reg_startp[0] == NULL) | |
4733 reg_startp[0] = regline + col; | |
4734 if (reg_endp[0] == NULL) | |
4735 reg_endp[0] = reginput; | |
4736 } | |
4737 | |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4738 #ifdef FEAT_SYN_HL |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4739 /* 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
|
4740 unref_extmatch(re_extmatch_out); |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4741 re_extmatch_out = NULL; |
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 if (prog->reghasz == REX_SET) |
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 cleanup_zsubexpr(); |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4746 re_extmatch_out = make_extmatch(); |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4747 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
|
4748 { |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4749 if (REG_MULTI) |
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 struct multipos *mpos = &subs.synt.list.multi[i]; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4752 |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4753 /* Only accept single line matches. */ |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4754 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
|
4755 re_extmatch_out->matches[i] = |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4756 vim_strnsave(reg_getline(mpos->start.lnum) |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4757 + mpos->start.col, |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4758 mpos->end.col - mpos->start.col); |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4759 } |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4760 else |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4761 { |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4762 struct linepos *lpos = &subs.synt.list.line[i]; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4763 |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4764 if (lpos->start != NULL && lpos->end != NULL) |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4765 re_extmatch_out->matches[i] = |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4766 vim_strnsave(lpos->start, |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4767 (int)(lpos->end - lpos->start)); |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4768 } |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4769 } |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4770 } |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4771 #endif |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4772 |
4444 | 4773 return 1 + reglnum; |
4774 } | |
4775 | |
4776 /* | |
4777 * Match a regexp against a string ("line" points to the string) or multiple | |
4778 * lines ("line" is NULL, use reg_getline()). | |
4779 * | |
4780 * Returns 0 for failure, number of lines contained in the match otherwise. | |
4781 */ | |
4782 static long | |
4783 nfa_regexec_both(line, col) | |
4784 char_u *line; | |
4785 colnr_T col; /* column to start looking for match */ | |
4786 { | |
4787 nfa_regprog_T *prog; | |
4788 long retval = 0L; | |
4789 int i; | |
4790 | |
4791 if (REG_MULTI) | |
4792 { | |
4793 prog = (nfa_regprog_T *)reg_mmatch->regprog; | |
4794 line = reg_getline((linenr_T)0); /* relative to the cursor */ | |
4795 reg_startpos = reg_mmatch->startpos; | |
4796 reg_endpos = reg_mmatch->endpos; | |
4797 } | |
4798 else | |
4799 { | |
4800 prog = (nfa_regprog_T *)reg_match->regprog; | |
4801 reg_startp = reg_match->startp; | |
4802 reg_endp = reg_match->endp; | |
4803 } | |
4804 | |
4805 /* Be paranoid... */ | |
4806 if (prog == NULL || line == NULL) | |
4807 { | |
4808 EMSG(_(e_null)); | |
4809 goto theend; | |
4810 } | |
4811 | |
4812 /* If the start column is past the maximum column: no need to try. */ | |
4813 if (ireg_maxcol > 0 && col >= ireg_maxcol) | |
4814 goto theend; | |
4815 | |
4816 /* If pattern contains "\c" or "\C": overrule value of ireg_ic */ | |
4817 if (prog->regflags & RF_ICASE) | |
4818 ireg_ic = TRUE; | |
4819 else if (prog->regflags & RF_NOICASE) | |
4820 ireg_ic = FALSE; | |
4821 | |
4822 #ifdef FEAT_MBYTE | |
4823 /* If pattern contains "\Z" overrule value of ireg_icombine */ | |
4824 if (prog->regflags & RF_ICOMBINE) | |
4825 ireg_icombine = TRUE; | |
4826 #endif | |
4827 | |
4828 regline = line; | |
4829 reglnum = 0; /* relative to line */ | |
4830 | |
4553
7b835b2969af
updated for version 7.3.1024
Bram Moolenaar <bram@vim.org>
parents:
4551
diff
changeset
|
4831 nfa_has_zend = prog->has_zend; |
4647
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
4832 nfa_has_backref = prog->has_backref; |
4561
4d81fdda8f35
updated for version 7.3.1028
Bram Moolenaar <bram@vim.org>
parents:
4559
diff
changeset
|
4833 nfa_nsubexpr = prog->nsubexp; |
4690
9d97a0c045ef
updated for version 7.3.1092
Bram Moolenaar <bram@vim.org>
parents:
4688
diff
changeset
|
4834 #ifdef DEBUG |
9d97a0c045ef
updated for version 7.3.1092
Bram Moolenaar <bram@vim.org>
parents:
4688
diff
changeset
|
4835 nfa_regengine.expr = prog->pattern; |
9d97a0c045ef
updated for version 7.3.1092
Bram Moolenaar <bram@vim.org>
parents:
4688
diff
changeset
|
4836 #endif |
4553
7b835b2969af
updated for version 7.3.1024
Bram Moolenaar <bram@vim.org>
parents:
4551
diff
changeset
|
4837 |
4444 | 4838 nstate = prog->nstate; |
4839 for (i = 0; i < nstate; ++i) | |
4840 { | |
4841 prog->state[i].id = i; | |
4842 prog->state[i].lastlist = 0; | |
4843 } | |
4844 | |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4845 retval = nfa_regtry(prog, col); |
4444 | 4846 |
4690
9d97a0c045ef
updated for version 7.3.1092
Bram Moolenaar <bram@vim.org>
parents:
4688
diff
changeset
|
4847 #ifdef DEBUG |
9d97a0c045ef
updated for version 7.3.1092
Bram Moolenaar <bram@vim.org>
parents:
4688
diff
changeset
|
4848 nfa_regengine.expr = NULL; |
9d97a0c045ef
updated for version 7.3.1092
Bram Moolenaar <bram@vim.org>
parents:
4688
diff
changeset
|
4849 #endif |
9d97a0c045ef
updated for version 7.3.1092
Bram Moolenaar <bram@vim.org>
parents:
4688
diff
changeset
|
4850 |
4444 | 4851 theend: |
4852 return retval; | |
4853 } | |
4854 | |
4855 /* | |
4856 * Compile a regular expression into internal code for the NFA matcher. | |
4857 * Returns the program in allocated space. Returns NULL for an error. | |
4858 */ | |
4859 static regprog_T * | |
4860 nfa_regcomp(expr, re_flags) | |
4861 char_u *expr; | |
4862 int re_flags; | |
4863 { | |
4541
80170d61a85c
updated for version 7.3.1018
Bram Moolenaar <bram@vim.org>
parents:
4539
diff
changeset
|
4864 nfa_regprog_T *prog = NULL; |
4458 | 4865 size_t prog_size; |
4444 | 4866 int *postfix; |
4867 | |
4868 if (expr == NULL) | |
4869 return NULL; | |
4870 | |
4871 #ifdef DEBUG | |
4872 nfa_regengine.expr = expr; | |
4873 #endif | |
4874 | |
4875 init_class_tab(); | |
4876 | |
4877 if (nfa_regcomp_start(expr, re_flags) == FAIL) | |
4878 return NULL; | |
4879 | |
4880 /* 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
|
4881 * (and count its size). */ |
4444 | 4882 postfix = re2post(); |
4883 if (postfix == NULL) | |
4555
b2946c06d1b6
updated for version 7.3.1025
Bram Moolenaar <bram@vim.org>
parents:
4553
diff
changeset
|
4884 { |
b2946c06d1b6
updated for version 7.3.1025
Bram Moolenaar <bram@vim.org>
parents:
4553
diff
changeset
|
4885 /* TODO: only give this error for debugging? */ |
b2946c06d1b6
updated for version 7.3.1025
Bram Moolenaar <bram@vim.org>
parents:
4553
diff
changeset
|
4886 if (post_ptr >= post_end) |
b2946c06d1b6
updated for version 7.3.1025
Bram Moolenaar <bram@vim.org>
parents:
4553
diff
changeset
|
4887 EMSGN("Internal error: estimated max number of states insufficient: %ld", post_end - post_start); |
4444 | 4888 goto fail; /* Cascaded (syntax?) error */ |
4555
b2946c06d1b6
updated for version 7.3.1025
Bram Moolenaar <bram@vim.org>
parents:
4553
diff
changeset
|
4889 } |
4444 | 4890 |
4891 /* | |
4892 * In order to build the NFA, we parse the input regexp twice: | |
4893 * 1. first pass to count size (so we can allocate space) | |
4894 * 2. second to emit code | |
4895 */ | |
4896 #ifdef ENABLE_LOG | |
4897 { | |
4531
1be43c095aff
updated for version 7.3.1013
Bram Moolenaar <bram@vim.org>
parents:
4529
diff
changeset
|
4898 FILE *f = fopen(NFA_REGEXP_RUN_LOG, "a"); |
4444 | 4899 |
4900 if (f != NULL) | |
4901 { | |
4902 fprintf(f, "\n*****************************\n\n\n\n\tCompiling regexp \"%s\" ... hold on !\n", expr); | |
4903 fclose(f); | |
4904 } | |
4905 } | |
4906 #endif | |
4907 | |
4908 /* | |
4909 * PASS 1 | |
4910 * Count number of NFA states in "nstate". Do not build the NFA. | |
4911 */ | |
4912 post2nfa(postfix, post_ptr, TRUE); | |
4541
80170d61a85c
updated for version 7.3.1018
Bram Moolenaar <bram@vim.org>
parents:
4539
diff
changeset
|
4913 |
80170d61a85c
updated for version 7.3.1018
Bram Moolenaar <bram@vim.org>
parents:
4539
diff
changeset
|
4914 /* Space for compiled regexp */ |
80170d61a85c
updated for version 7.3.1018
Bram Moolenaar <bram@vim.org>
parents:
4539
diff
changeset
|
4915 prog_size = sizeof(nfa_regprog_T) + sizeof(nfa_state_T) * nstate; |
80170d61a85c
updated for version 7.3.1018
Bram Moolenaar <bram@vim.org>
parents:
4539
diff
changeset
|
4916 prog = (nfa_regprog_T *)lalloc(prog_size, TRUE); |
80170d61a85c
updated for version 7.3.1018
Bram Moolenaar <bram@vim.org>
parents:
4539
diff
changeset
|
4917 if (prog == NULL) |
80170d61a85c
updated for version 7.3.1018
Bram Moolenaar <bram@vim.org>
parents:
4539
diff
changeset
|
4918 goto fail; |
80170d61a85c
updated for version 7.3.1018
Bram Moolenaar <bram@vim.org>
parents:
4539
diff
changeset
|
4919 vim_memset(prog, 0, prog_size); |
4444 | 4920 state_ptr = prog->state; |
4921 | |
4922 /* | |
4923 * PASS 2 | |
4924 * Build the NFA | |
4925 */ | |
4926 prog->start = post2nfa(postfix, post_ptr, FALSE); | |
4927 if (prog->start == NULL) | |
4928 goto fail; | |
4929 | |
4930 prog->regflags = regflags; | |
4931 prog->engine = &nfa_regengine; | |
4932 prog->nstate = nstate; | |
4553
7b835b2969af
updated for version 7.3.1024
Bram Moolenaar <bram@vim.org>
parents:
4551
diff
changeset
|
4933 prog->has_zend = nfa_has_zend; |
4647
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
4934 prog->has_backref = nfa_has_backref; |
4561
4d81fdda8f35
updated for version 7.3.1028
Bram Moolenaar <bram@vim.org>
parents:
4559
diff
changeset
|
4935 prog->nsubexp = regnpar; |
4444 | 4936 #ifdef ENABLE_LOG |
4937 nfa_postfix_dump(expr, OK); | |
4938 nfa_dump(prog); | |
4939 #endif | |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4940 #ifdef FEAT_SYN_HL |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4941 /* Remember whether this pattern has any \z specials in it. */ |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4942 prog->reghasz = re_has_z; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4943 #endif |
4690
9d97a0c045ef
updated for version 7.3.1092
Bram Moolenaar <bram@vim.org>
parents:
4688
diff
changeset
|
4944 #ifdef DEBUG |
9d97a0c045ef
updated for version 7.3.1092
Bram Moolenaar <bram@vim.org>
parents:
4688
diff
changeset
|
4945 prog->pattern = vim_strsave(expr); /* memory will leak */ |
9d97a0c045ef
updated for version 7.3.1092
Bram Moolenaar <bram@vim.org>
parents:
4688
diff
changeset
|
4946 nfa_regengine.expr = NULL; |
9d97a0c045ef
updated for version 7.3.1092
Bram Moolenaar <bram@vim.org>
parents:
4688
diff
changeset
|
4947 #endif |
4444 | 4948 |
4949 out: | |
4950 vim_free(post_start); | |
4951 post_start = post_ptr = post_end = NULL; | |
4952 state_ptr = NULL; | |
4953 return (regprog_T *)prog; | |
4954 | |
4955 fail: | |
4956 vim_free(prog); | |
4957 prog = NULL; | |
4958 #ifdef ENABLE_LOG | |
4959 nfa_postfix_dump(expr, FAIL); | |
4960 #endif | |
4961 #ifdef DEBUG | |
4962 nfa_regengine.expr = NULL; | |
4963 #endif | |
4964 goto out; | |
4965 } | |
4966 | |
4967 | |
4968 /* | |
4969 * Match a regexp against a string. | |
4970 * "rmp->regprog" is a compiled regexp as returned by nfa_regcomp(). | |
4971 * Uses curbuf for line count and 'iskeyword'. | |
4972 * | |
4973 * Return TRUE if there is a match, FALSE if not. | |
4974 */ | |
4975 static int | |
4976 nfa_regexec(rmp, line, col) | |
4977 regmatch_T *rmp; | |
4978 char_u *line; /* string to match against */ | |
4979 colnr_T col; /* column to start looking for match */ | |
4980 { | |
4981 reg_match = rmp; | |
4982 reg_mmatch = NULL; | |
4983 reg_maxline = 0; | |
4984 reg_line_lbr = FALSE; | |
4985 reg_buf = curbuf; | |
4986 reg_win = NULL; | |
4987 ireg_ic = rmp->rm_ic; | |
4988 #ifdef FEAT_MBYTE | |
4989 ireg_icombine = FALSE; | |
4990 #endif | |
4991 ireg_maxcol = 0; | |
4992 return (nfa_regexec_both(line, col) != 0); | |
4993 } | |
4994 | |
4995 #if defined(FEAT_MODIFY_FNAME) || defined(FEAT_EVAL) \ | |
4996 || defined(FIND_REPLACE_DIALOG) || defined(PROTO) | |
4997 | |
4998 static int nfa_regexec_nl __ARGS((regmatch_T *rmp, char_u *line, colnr_T col)); | |
4999 | |
5000 /* | |
5001 * Like nfa_regexec(), but consider a "\n" in "line" to be a line break. | |
5002 */ | |
5003 static int | |
5004 nfa_regexec_nl(rmp, line, col) | |
5005 regmatch_T *rmp; | |
5006 char_u *line; /* string to match against */ | |
5007 colnr_T col; /* column to start looking for match */ | |
5008 { | |
5009 reg_match = rmp; | |
5010 reg_mmatch = NULL; | |
5011 reg_maxline = 0; | |
5012 reg_line_lbr = TRUE; | |
5013 reg_buf = curbuf; | |
5014 reg_win = NULL; | |
5015 ireg_ic = rmp->rm_ic; | |
5016 #ifdef FEAT_MBYTE | |
5017 ireg_icombine = FALSE; | |
5018 #endif | |
5019 ireg_maxcol = 0; | |
5020 return (nfa_regexec_both(line, col) != 0); | |
5021 } | |
5022 #endif | |
5023 | |
5024 | |
5025 /* | |
5026 * Match a regexp against multiple lines. | |
5027 * "rmp->regprog" is a compiled regexp as returned by vim_regcomp(). | |
5028 * Uses curbuf for line count and 'iskeyword'. | |
5029 * | |
5030 * Return zero if there is no match. Return number of lines contained in the | |
5031 * match otherwise. | |
5032 * | |
5033 * Note: the body is the same as bt_regexec() except for nfa_regexec_both() | |
5034 * | |
5035 * ! Also NOTE : match may actually be in another line. e.g.: | |
5036 * when r.e. is \nc, cursor is at 'a' and the text buffer looks like | |
5037 * | |
5038 * +-------------------------+ | |
5039 * |a | | |
5040 * |b | | |
5041 * |c | | |
5042 * | | | |
5043 * +-------------------------+ | |
5044 * | |
5045 * then nfa_regexec_multi() returns 3. while the original | |
5046 * vim_regexec_multi() returns 0 and a second call at line 2 will return 2. | |
5047 * | |
5048 * FIXME if this behavior is not compatible. | |
5049 */ | |
5050 static long | |
5051 nfa_regexec_multi(rmp, win, buf, lnum, col, tm) | |
5052 regmmatch_T *rmp; | |
5053 win_T *win; /* window in which to search or NULL */ | |
5054 buf_T *buf; /* buffer in which to search */ | |
5055 linenr_T lnum; /* nr of line to start looking for match */ | |
5056 colnr_T col; /* column to start looking for match */ | |
5057 proftime_T *tm UNUSED; /* timeout limit or NULL */ | |
5058 { | |
5059 reg_match = NULL; | |
5060 reg_mmatch = rmp; | |
5061 reg_buf = buf; | |
5062 reg_win = win; | |
5063 reg_firstlnum = lnum; | |
5064 reg_maxline = reg_buf->b_ml.ml_line_count - lnum; | |
5065 reg_line_lbr = FALSE; | |
5066 ireg_ic = rmp->rmm_ic; | |
5067 #ifdef FEAT_MBYTE | |
5068 ireg_icombine = FALSE; | |
5069 #endif | |
5070 ireg_maxcol = rmp->rmm_maxcol; | |
5071 | |
4503 | 5072 return nfa_regexec_both(NULL, col); |
4444 | 5073 } |
5074 | |
5075 #ifdef DEBUG | |
5076 # undef ENABLE_LOG | |
5077 #endif |