Mercurial > vim
annotate src/regexp_nfa.c @ 4690:9d97a0c045ef v7.3.1092
updated for version 7.3.1092
Problem: Can't build with regexp debugging. NFA debug output shows wrong
pattern.
Solution: Fix debugging code for recent changes. Add the pattern to the
program.
author | Bram Moolenaar <bram@vim.org> |
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date | Sun, 02 Jun 2013 15:55:55 +0200 |
parents | 371cc0c44097 |
children | 08fbb1ce1bc5 |
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. */ |
4444 | 250 static int istate; /* Index in the state vector, used in new_state() */ |
251 | |
252 | |
253 static int nfa_regcomp_start __ARGS((char_u*expr, int re_flags)); | |
254 static int nfa_recognize_char_class __ARGS((char_u *start, char_u *end, int extra_newl)); | |
255 static int nfa_emit_equi_class __ARGS((int c, int neg)); | |
256 static int nfa_regatom __ARGS((void)); | |
257 static int nfa_regpiece __ARGS((void)); | |
258 static int nfa_regconcat __ARGS((void)); | |
259 static int nfa_regbranch __ARGS((void)); | |
260 static int nfa_reg __ARGS((int paren)); | |
261 #ifdef DEBUG | |
262 static void nfa_set_code __ARGS((int c)); | |
263 static void nfa_postfix_dump __ARGS((char_u *expr, int retval)); | |
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264 static void nfa_print_state __ARGS((FILE *debugf, nfa_state_T *state)); |
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265 static void nfa_print_state2 __ARGS((FILE *debugf, nfa_state_T *state, garray_T *indent)); |
4444 | 266 static void nfa_dump __ARGS((nfa_regprog_T *prog)); |
267 #endif | |
268 static int *re2post __ARGS((void)); | |
269 static nfa_state_T *new_state __ARGS((int c, nfa_state_T *out, nfa_state_T *out1)); | |
270 static nfa_state_T *post2nfa __ARGS((int *postfix, int *end, int nfa_calc_size)); | |
271 static int check_char_class __ARGS((int class, int c)); | |
272 static void st_error __ARGS((int *postfix, int *end, int *p)); | |
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273 static void nfa_set_neg_listids __ARGS((nfa_state_T *start)); |
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274 static void nfa_set_null_listids __ARGS((nfa_state_T *start)); |
4444 | 275 static void nfa_save_listids __ARGS((nfa_state_T *start, int *list)); |
276 static void nfa_restore_listids __ARGS((nfa_state_T *start, int *list)); | |
4583
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277 static int nfa_re_num_cmp __ARGS((long_u val, int op, long_u pos)); |
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278 static long nfa_regtry __ARGS((nfa_regprog_T *prog, colnr_T col)); |
4444 | 279 static long nfa_regexec_both __ARGS((char_u *line, colnr_T col)); |
280 static regprog_T *nfa_regcomp __ARGS((char_u *expr, int re_flags)); | |
281 static int nfa_regexec __ARGS((regmatch_T *rmp, char_u *line, colnr_T col)); | |
282 static long nfa_regexec_multi __ARGS((regmmatch_T *rmp, win_T *win, buf_T *buf, linenr_T lnum, colnr_T col, proftime_T *tm)); | |
283 | |
284 /* helper functions used when doing re2post() ... regatom() parsing */ | |
285 #define EMIT(c) do { \ | |
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286 if (post_ptr >= post_end && realloc_post_list() == FAIL) \ |
4444 | 287 return FAIL; \ |
288 *post_ptr++ = c; \ | |
289 } while (0) | |
290 | |
291 /* | |
292 * Initialize internal variables before NFA compilation. | |
293 * Return OK on success, FAIL otherwise. | |
294 */ | |
295 static int | |
296 nfa_regcomp_start(expr, re_flags) | |
297 char_u *expr; | |
298 int re_flags; /* see vim_regcomp() */ | |
299 { | |
4458 | 300 size_t postfix_size; |
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301 int nstate_max; |
4444 | 302 |
303 nstate = 0; | |
304 istate = 0; | |
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305 /* A reasonable estimation for maximum size */ |
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306 nstate_max = (int)(STRLEN(expr) + 1) * 25; |
4444 | 307 |
4454 | 308 /* Some items blow up in size, such as [A-z]. Add more space for that. |
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309 * When it is still not enough realloc_post_list() will be used. */ |
4458 | 310 nstate_max += 1000; |
4454 | 311 |
312 /* Size for postfix representation of expr. */ | |
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313 postfix_size = sizeof(int) * nstate_max; |
4454 | 314 |
4444 | 315 post_start = (int *)lalloc(postfix_size, TRUE); |
316 if (post_start == NULL) | |
317 return FAIL; | |
318 vim_memset(post_start, 0, postfix_size); | |
319 post_ptr = post_start; | |
4454 | 320 post_end = post_start + nstate_max; |
4444 | 321 nfa_has_zend = FALSE; |
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322 nfa_has_backref = FALSE; |
4444 | 323 |
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324 /* shared with BT engine */ |
4444 | 325 regcomp_start(expr, re_flags); |
326 | |
327 return OK; | |
328 } | |
329 | |
330 /* | |
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331 * Allocate more space for post_start. Called when |
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332 * running above the estimated number of states. |
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333 */ |
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334 static int |
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335 realloc_post_list() |
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336 { |
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337 int nstate_max = (int)(post_end - post_start); |
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338 int new_max = nstate_max + 1000; |
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339 int *new_start; |
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340 int *old_start; |
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341 |
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342 new_start = (int *)lalloc(new_max * sizeof(int), TRUE); |
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343 if (new_start == NULL) |
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344 return FAIL; |
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345 mch_memmove(new_start, post_start, nstate_max * sizeof(int)); |
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346 vim_memset(new_start + nstate_max, 0, 1000 * sizeof(int)); |
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347 old_start = post_start; |
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348 post_start = new_start; |
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349 post_ptr = new_start + (post_ptr - old_start); |
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350 post_end = post_start + new_max; |
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351 vim_free(old_start); |
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352 return OK; |
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353 } |
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354 |
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355 /* |
4444 | 356 * Search between "start" and "end" and try to recognize a |
357 * character class in expanded form. For example [0-9]. | |
358 * On success, return the id the character class to be emitted. | |
359 * On failure, return 0 (=FAIL) | |
360 * Start points to the first char of the range, while end should point | |
361 * to the closing brace. | |
362 */ | |
363 static int | |
364 nfa_recognize_char_class(start, end, extra_newl) | |
365 char_u *start; | |
366 char_u *end; | |
367 int extra_newl; | |
368 { | |
369 int i; | |
370 /* Each of these variables takes up a char in "config[]", | |
371 * in the order they are here. */ | |
372 int not = FALSE, af = FALSE, AF = FALSE, az = FALSE, AZ = FALSE, | |
373 o7 = FALSE, o9 = FALSE, underscore = FALSE, newl = FALSE; | |
374 char_u *p; | |
375 #define NCONFIGS 16 | |
376 int classid[NCONFIGS] = { | |
377 NFA_DIGIT, NFA_NDIGIT, NFA_HEX, NFA_NHEX, | |
378 NFA_OCTAL, NFA_NOCTAL, NFA_WORD, NFA_NWORD, | |
379 NFA_HEAD, NFA_NHEAD, NFA_ALPHA, NFA_NALPHA, | |
380 NFA_LOWER, NFA_NLOWER, NFA_UPPER, NFA_NUPPER | |
381 }; | |
4450 | 382 char_u myconfig[10]; |
4444 | 383 char_u config[NCONFIGS][9] = { |
384 "000000100", /* digit */ | |
385 "100000100", /* non digit */ | |
386 "011000100", /* hex-digit */ | |
387 "111000100", /* non hex-digit */ | |
388 "000001000", /* octal-digit */ | |
389 "100001000", /* [^0-7] */ | |
390 "000110110", /* [0-9A-Za-z_] */ | |
391 "100110110", /* [^0-9A-Za-z_] */ | |
392 "000110010", /* head of word */ | |
393 "100110010", /* not head of word */ | |
394 "000110000", /* alphabetic char a-z */ | |
395 "100110000", /* non alphabetic char */ | |
396 "000100000", /* lowercase letter */ | |
397 "100100000", /* non lowercase */ | |
398 "000010000", /* uppercase */ | |
399 "100010000" /* non uppercase */ | |
400 }; | |
401 | |
402 if (extra_newl == TRUE) | |
403 newl = TRUE; | |
404 | |
405 if (*end != ']') | |
406 return FAIL; | |
407 p = start; | |
408 if (*p == '^') | |
409 { | |
410 not = TRUE; | |
411 p ++; | |
412 } | |
413 | |
414 while (p < end) | |
415 { | |
416 if (p + 2 < end && *(p + 1) == '-') | |
417 { | |
418 switch (*p) | |
419 { | |
420 case '0': | |
421 if (*(p + 2) == '9') | |
422 { | |
423 o9 = TRUE; | |
424 break; | |
425 } | |
426 else | |
427 if (*(p + 2) == '7') | |
428 { | |
429 o7 = TRUE; | |
430 break; | |
431 } | |
432 case 'a': | |
433 if (*(p + 2) == 'z') | |
434 { | |
435 az = TRUE; | |
436 break; | |
437 } | |
438 else | |
439 if (*(p + 2) == 'f') | |
440 { | |
441 af = TRUE; | |
442 break; | |
443 } | |
444 case 'A': | |
445 if (*(p + 2) == 'Z') | |
446 { | |
447 AZ = TRUE; | |
448 break; | |
449 } | |
450 else | |
451 if (*(p + 2) == 'F') | |
452 { | |
453 AF = TRUE; | |
454 break; | |
455 } | |
456 /* FALLTHROUGH */ | |
457 default: | |
458 return FAIL; | |
459 } | |
460 p += 3; | |
461 } | |
462 else if (p + 1 < end && *p == '\\' && *(p + 1) == 'n') | |
463 { | |
464 newl = TRUE; | |
465 p += 2; | |
466 } | |
467 else if (*p == '_') | |
468 { | |
469 underscore = TRUE; | |
470 p ++; | |
471 } | |
472 else if (*p == '\n') | |
473 { | |
474 newl = TRUE; | |
475 p ++; | |
476 } | |
477 else | |
478 return FAIL; | |
479 } /* while (p < end) */ | |
480 | |
481 if (p != end) | |
482 return FAIL; | |
483 | |
484 /* build the config that represents the ranges we gathered */ | |
485 STRCPY(myconfig, "000000000"); | |
486 if (not == TRUE) | |
487 myconfig[0] = '1'; | |
488 if (af == TRUE) | |
489 myconfig[1] = '1'; | |
490 if (AF == TRUE) | |
491 myconfig[2] = '1'; | |
492 if (az == TRUE) | |
493 myconfig[3] = '1'; | |
494 if (AZ == TRUE) | |
495 myconfig[4] = '1'; | |
496 if (o7 == TRUE) | |
497 myconfig[5] = '1'; | |
498 if (o9 == TRUE) | |
499 myconfig[6] = '1'; | |
500 if (underscore == TRUE) | |
501 myconfig[7] = '1'; | |
502 if (newl == TRUE) | |
503 { | |
504 myconfig[8] = '1'; | |
505 extra_newl = ADD_NL; | |
506 } | |
507 /* try to recognize character classes */ | |
508 for (i = 0; i < NCONFIGS; i++) | |
4450 | 509 if (STRNCMP(myconfig, config[i], 8) == 0) |
4444 | 510 return classid[i] + extra_newl; |
511 | |
512 /* fallthrough => no success so far */ | |
513 return FAIL; | |
514 | |
515 #undef NCONFIGS | |
516 } | |
517 | |
518 /* | |
519 * Produce the bytes for equivalence class "c". | |
520 * Currently only handles latin1, latin9 and utf-8. | |
521 * Emits bytes in postfix notation: 'a,b,NFA_OR,c,NFA_OR' is | |
522 * equivalent to 'a OR b OR c' | |
523 * | |
524 * NOTE! When changing this function, also update reg_equi_class() | |
525 */ | |
526 static int | |
527 nfa_emit_equi_class(c, neg) | |
528 int c; | |
529 int neg; | |
530 { | |
531 int first = TRUE; | |
532 int glue = neg == TRUE ? NFA_CONCAT : NFA_OR; | |
533 #define EMIT2(c) \ | |
534 EMIT(c); \ | |
535 if (neg == TRUE) { \ | |
536 EMIT(NFA_NOT); \ | |
537 } \ | |
538 if (first == FALSE) \ | |
539 EMIT(glue); \ | |
540 else \ | |
541 first = FALSE; \ | |
542 | |
543 #ifdef FEAT_MBYTE | |
544 if (enc_utf8 || STRCMP(p_enc, "latin1") == 0 | |
545 || STRCMP(p_enc, "iso-8859-15") == 0) | |
546 #endif | |
547 { | |
548 switch (c) | |
549 { | |
550 case 'A': case '\300': case '\301': case '\302': | |
551 case '\303': case '\304': case '\305': | |
552 EMIT2('A'); EMIT2('\300'); EMIT2('\301'); | |
553 EMIT2('\302'); EMIT2('\303'); EMIT2('\304'); | |
554 EMIT2('\305'); | |
555 return OK; | |
556 | |
557 case 'C': case '\307': | |
558 EMIT2('C'); EMIT2('\307'); | |
559 return OK; | |
560 | |
561 case 'E': case '\310': case '\311': case '\312': case '\313': | |
562 EMIT2('E'); EMIT2('\310'); EMIT2('\311'); | |
563 EMIT2('\312'); EMIT2('\313'); | |
564 return OK; | |
565 | |
566 case 'I': case '\314': case '\315': case '\316': case '\317': | |
567 EMIT2('I'); EMIT2('\314'); EMIT2('\315'); | |
568 EMIT2('\316'); EMIT2('\317'); | |
569 return OK; | |
570 | |
571 case 'N': case '\321': | |
572 EMIT2('N'); EMIT2('\321'); | |
573 return OK; | |
574 | |
575 case 'O': case '\322': case '\323': case '\324': case '\325': | |
576 case '\326': | |
577 EMIT2('O'); EMIT2('\322'); EMIT2('\323'); | |
578 EMIT2('\324'); EMIT2('\325'); EMIT2('\326'); | |
579 return OK; | |
580 | |
581 case 'U': case '\331': case '\332': case '\333': case '\334': | |
582 EMIT2('U'); EMIT2('\331'); EMIT2('\332'); | |
583 EMIT2('\333'); EMIT2('\334'); | |
584 return OK; | |
585 | |
586 case 'Y': case '\335': | |
587 EMIT2('Y'); EMIT2('\335'); | |
588 return OK; | |
589 | |
590 case 'a': case '\340': case '\341': case '\342': | |
591 case '\343': case '\344': case '\345': | |
592 EMIT2('a'); EMIT2('\340'); EMIT2('\341'); | |
593 EMIT2('\342'); EMIT2('\343'); EMIT2('\344'); | |
594 EMIT2('\345'); | |
595 return OK; | |
596 | |
597 case 'c': case '\347': | |
598 EMIT2('c'); EMIT2('\347'); | |
599 return OK; | |
600 | |
601 case 'e': case '\350': case '\351': case '\352': case '\353': | |
602 EMIT2('e'); EMIT2('\350'); EMIT2('\351'); | |
603 EMIT2('\352'); EMIT2('\353'); | |
604 return OK; | |
605 | |
606 case 'i': case '\354': case '\355': case '\356': case '\357': | |
607 EMIT2('i'); EMIT2('\354'); EMIT2('\355'); | |
608 EMIT2('\356'); EMIT2('\357'); | |
609 return OK; | |
610 | |
611 case 'n': case '\361': | |
612 EMIT2('n'); EMIT2('\361'); | |
613 return OK; | |
614 | |
615 case 'o': case '\362': case '\363': case '\364': case '\365': | |
616 case '\366': | |
617 EMIT2('o'); EMIT2('\362'); EMIT2('\363'); | |
618 EMIT2('\364'); EMIT2('\365'); EMIT2('\366'); | |
619 return OK; | |
620 | |
621 case 'u': case '\371': case '\372': case '\373': case '\374': | |
622 EMIT2('u'); EMIT2('\371'); EMIT2('\372'); | |
623 EMIT2('\373'); EMIT2('\374'); | |
624 return OK; | |
625 | |
626 case 'y': case '\375': case '\377': | |
627 EMIT2('y'); EMIT2('\375'); EMIT2('\377'); | |
628 return OK; | |
629 | |
630 default: | |
631 return FAIL; | |
632 } | |
633 } | |
634 | |
635 EMIT(c); | |
636 return OK; | |
637 #undef EMIT2 | |
638 } | |
639 | |
640 /* | |
641 * Code to parse regular expression. | |
642 * | |
643 * We try to reuse parsing functions in regexp.c to | |
644 * minimize surprise and keep the syntax consistent. | |
645 */ | |
646 | |
647 /* | |
648 * Parse the lowest level. | |
649 * | |
650 * An atom can be one of a long list of items. Many atoms match one character | |
651 * in the text. It is often an ordinary character or a character class. | |
652 * Braces can be used to make a pattern into an atom. The "\z(\)" construct | |
653 * is only for syntax highlighting. | |
654 * | |
655 * atom ::= ordinary-atom | |
656 * or \( pattern \) | |
657 * or \%( pattern \) | |
658 * or \z( pattern \) | |
659 */ | |
660 static int | |
661 nfa_regatom() | |
662 { | |
663 int c; | |
664 int charclass; | |
665 int equiclass; | |
666 int collclass; | |
667 int got_coll_char; | |
668 char_u *p; | |
669 char_u *endp; | |
670 #ifdef FEAT_MBYTE | |
671 char_u *old_regparse = regparse; | |
672 #endif | |
673 int extra = 0; | |
674 int first; | |
675 int emit_range; | |
676 int negated; | |
677 int result; | |
678 int startc = -1; | |
679 int endc = -1; | |
680 int oldstartc = -1; | |
681 int cpo_lit; /* 'cpoptions' contains 'l' flag */ | |
682 int cpo_bsl; /* 'cpoptions' contains '\' flag */ | |
683 int glue; /* ID that will "glue" nodes together */ | |
684 | |
685 cpo_lit = vim_strchr(p_cpo, CPO_LITERAL) != NULL; | |
686 cpo_bsl = vim_strchr(p_cpo, CPO_BACKSL) != NULL; | |
687 | |
688 c = getchr(); | |
689 switch (c) | |
690 { | |
4543
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691 case NUL: |
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692 syntax_error = TRUE; |
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693 EMSG_RET_FAIL(_("E865: (NFA) Regexp end encountered prematurely")); |
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694 |
4444 | 695 case Magic('^'): |
696 EMIT(NFA_BOL); | |
697 break; | |
698 | |
699 case Magic('$'): | |
700 EMIT(NFA_EOL); | |
701 #if defined(FEAT_SYN_HL) || defined(PROTO) | |
702 had_eol = TRUE; | |
703 #endif | |
704 break; | |
705 | |
706 case Magic('<'): | |
707 EMIT(NFA_BOW); | |
708 break; | |
709 | |
710 case Magic('>'): | |
711 EMIT(NFA_EOW); | |
712 break; | |
713 | |
714 case Magic('_'): | |
715 c = no_Magic(getchr()); | |
716 if (c == '^') /* "\_^" is start-of-line */ | |
717 { | |
718 EMIT(NFA_BOL); | |
719 break; | |
720 } | |
721 if (c == '$') /* "\_$" is end-of-line */ | |
722 { | |
723 EMIT(NFA_EOL); | |
724 #if defined(FEAT_SYN_HL) || defined(PROTO) | |
725 had_eol = TRUE; | |
726 #endif | |
727 break; | |
728 } | |
729 | |
730 extra = ADD_NL; | |
731 | |
732 /* "\_[" is collection plus newline */ | |
733 if (c == '[') | |
4517
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734 goto collection; |
4444 | 735 |
736 /* "\_x" is character class plus newline */ | |
737 /*FALLTHROUGH*/ | |
738 | |
739 /* | |
740 * Character classes. | |
741 */ | |
742 case Magic('.'): | |
743 case Magic('i'): | |
744 case Magic('I'): | |
745 case Magic('k'): | |
746 case Magic('K'): | |
747 case Magic('f'): | |
748 case Magic('F'): | |
749 case Magic('p'): | |
750 case Magic('P'): | |
751 case Magic('s'): | |
752 case Magic('S'): | |
753 case Magic('d'): | |
754 case Magic('D'): | |
755 case Magic('x'): | |
756 case Magic('X'): | |
757 case Magic('o'): | |
758 case Magic('O'): | |
759 case Magic('w'): | |
760 case Magic('W'): | |
761 case Magic('h'): | |
762 case Magic('H'): | |
763 case Magic('a'): | |
764 case Magic('A'): | |
765 case Magic('l'): | |
766 case Magic('L'): | |
767 case Magic('u'): | |
768 case Magic('U'): | |
769 p = vim_strchr(classchars, no_Magic(c)); | |
770 if (p == NULL) | |
771 { | |
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772 EMSGN("INTERNAL: Unknown character class char: %ld", c); |
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773 return FAIL; |
4444 | 774 } |
775 #ifdef FEAT_MBYTE | |
776 /* When '.' is followed by a composing char ignore the dot, so that | |
777 * the composing char is matched here. */ | |
778 if (enc_utf8 && c == Magic('.') && utf_iscomposing(peekchr())) | |
779 { | |
4535
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780 old_regparse = regparse; |
4444 | 781 c = getchr(); |
782 goto nfa_do_multibyte; | |
783 } | |
784 #endif | |
785 EMIT(nfa_classcodes[p - classchars]); | |
786 if (extra == ADD_NL) | |
787 { | |
788 EMIT(NFA_NEWL); | |
789 EMIT(NFA_OR); | |
790 regflags |= RF_HASNL; | |
791 } | |
792 break; | |
793 | |
794 case Magic('n'): | |
795 if (reg_string) | |
796 /* In a string "\n" matches a newline character. */ | |
797 EMIT(NL); | |
798 else | |
799 { | |
800 /* In buffer text "\n" matches the end of a line. */ | |
801 EMIT(NFA_NEWL); | |
802 regflags |= RF_HASNL; | |
803 } | |
804 break; | |
805 | |
806 case Magic('('): | |
807 if (nfa_reg(REG_PAREN) == FAIL) | |
808 return FAIL; /* cascaded error */ | |
809 break; | |
810 | |
811 case Magic('|'): | |
812 case Magic('&'): | |
813 case Magic(')'): | |
814 syntax_error = TRUE; | |
4450 | 815 EMSGN(_(e_misplaced), no_Magic(c)); |
4444 | 816 return FAIL; |
817 | |
818 case Magic('='): | |
819 case Magic('?'): | |
820 case Magic('+'): | |
821 case Magic('@'): | |
822 case Magic('*'): | |
823 case Magic('{'): | |
824 /* these should follow an atom, not form an atom */ | |
825 syntax_error = TRUE; | |
4450 | 826 EMSGN(_(e_misplaced), no_Magic(c)); |
4444 | 827 return FAIL; |
828 | |
829 case Magic('~'): /* previous substitute pattern */ | |
4571
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830 /* TODO: Not supported yet */ |
4444 | 831 return FAIL; |
832 | |
4647
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833 case Magic('1'): |
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834 case Magic('2'): |
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835 case Magic('3'): |
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836 case Magic('4'): |
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837 case Magic('5'): |
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838 case Magic('6'): |
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839 case Magic('7'): |
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840 case Magic('8'): |
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841 case Magic('9'): |
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842 EMIT(NFA_BACKREF1 + (no_Magic(c) - '1')); |
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843 nfa_has_backref = TRUE; |
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844 break; |
4444 | 845 |
846 case Magic('z'): | |
847 c = no_Magic(getchr()); | |
848 switch (c) | |
849 { | |
850 case 's': | |
851 EMIT(NFA_ZSTART); | |
852 break; | |
853 case 'e': | |
854 EMIT(NFA_ZEND); | |
855 nfa_has_zend = TRUE; | |
4569
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856 break; |
4686
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857 #ifdef FEAT_SYN_HL |
4444 | 858 case '1': |
859 case '2': | |
860 case '3': | |
861 case '4': | |
862 case '5': | |
863 case '6': | |
864 case '7': | |
865 case '8': | |
866 case '9': | |
4686
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867 /* \z1...\z9 */ |
4688
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868 if (reg_do_extmatch != REX_USE) |
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869 EMSG_RET_FAIL(_(e_z1_not_allowed)); |
4686
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870 EMIT(NFA_ZREF1 + (no_Magic(c) - '1')); |
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871 /* No need to set nfa_has_backref, the sub-matches don't |
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872 * change when \z1 .. \z9 maches or not. */ |
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873 re_has_z = REX_USE; |
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874 break; |
4444 | 875 case '(': |
4686
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876 /* \z( */ |
4688
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877 if (reg_do_extmatch != REX_SET) |
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878 EMSG_RET_FAIL(_(e_z_not_allowed)); |
4686
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879 if (nfa_reg(REG_ZPAREN) == FAIL) |
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880 return FAIL; /* cascaded error */ |
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881 re_has_z = REX_SET; |
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882 break; |
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883 #endif |
4444 | 884 default: |
885 syntax_error = TRUE; | |
4450 | 886 EMSGN(_("E867: (NFA) Unknown operator '\\z%c'"), |
4444 | 887 no_Magic(c)); |
888 return FAIL; | |
889 } | |
890 break; | |
891 | |
892 case Magic('%'): | |
893 c = no_Magic(getchr()); | |
894 switch (c) | |
895 { | |
896 /* () without a back reference */ | |
897 case '(': | |
898 if (nfa_reg(REG_NPAREN) == FAIL) | |
899 return FAIL; | |
900 EMIT(NFA_NOPEN); | |
901 break; | |
902 | |
903 case 'd': /* %d123 decimal */ | |
904 case 'o': /* %o123 octal */ | |
905 case 'x': /* %xab hex 2 */ | |
906 case 'u': /* %uabcd hex 4 */ | |
907 case 'U': /* %U1234abcd hex 8 */ | |
4543
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908 { |
4549
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909 int nr; |
4543
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910 |
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911 switch (c) |
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912 { |
4549
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913 case 'd': nr = getdecchrs(); break; |
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914 case 'o': nr = getoctchrs(); break; |
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915 case 'x': nr = gethexchrs(2); break; |
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916 case 'u': nr = gethexchrs(4); break; |
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917 case 'U': nr = gethexchrs(8); break; |
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918 default: nr = -1; break; |
4543
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919 } |
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920 |
4549
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921 if (nr < 0) |
4543
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922 EMSG2_RET_FAIL( |
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923 _("E678: Invalid character after %s%%[dxouU]"), |
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924 reg_magic == MAGIC_ALL); |
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925 /* TODO: what if a composing character follows? */ |
4549
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926 EMIT(nr); |
4543
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927 } |
4444 | 928 break; |
929 | |
930 /* Catch \%^ and \%$ regardless of where they appear in the | |
931 * pattern -- regardless of whether or not it makes sense. */ | |
932 case '^': | |
933 EMIT(NFA_BOF); | |
934 break; | |
935 | |
936 case '$': | |
937 EMIT(NFA_EOF); | |
938 break; | |
939 | |
940 case '#': | |
4583
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941 EMIT(NFA_CURSOR); |
4444 | 942 break; |
943 | |
944 case 'V': | |
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945 /* TODO: not supported yet */ |
4444 | 946 return FAIL; |
947 break; | |
948 | |
949 case '[': | |
4571
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950 /* TODO: \%[abc] not supported yet */ |
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951 return FAIL; |
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952 |
4444 | 953 default: |
4583
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|
954 { |
4655
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955 int n = 0; |
4583
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956 int cmp = c; |
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|
957 |
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958 if (c == '<' || c == '>') |
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959 c = getchr(); |
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|
960 while (VIM_ISDIGIT(c)) |
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|
961 { |
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962 n = n * 10 + (c - '0'); |
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963 c = getchr(); |
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|
964 } |
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|
965 if (c == 'l' || c == 'c' || c == 'v') |
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|
966 { |
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|
967 EMIT(n); |
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968 if (c == 'l') |
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969 EMIT(cmp == '<' ? NFA_LNUM_LT : |
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970 cmp == '>' ? NFA_LNUM_GT : NFA_LNUM); |
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971 else if (c == 'c') |
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972 EMIT(cmp == '<' ? NFA_COL_LT : |
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973 cmp == '>' ? NFA_COL_GT : NFA_COL); |
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974 else |
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975 EMIT(cmp == '<' ? NFA_VCOL_LT : |
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|
976 cmp == '>' ? NFA_VCOL_GT : NFA_VCOL); |
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|
977 break; |
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978 } |
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979 else if (c == '\'') |
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980 /* TODO: \%'m not supported yet */ |
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981 return FAIL; |
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982 } |
4571
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983 syntax_error = TRUE; |
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984 EMSGN(_("E867: (NFA) Unknown operator '\\%%%c'"), |
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985 no_Magic(c)); |
4444 | 986 return FAIL; |
987 } | |
988 break; | |
989 | |
990 case Magic('['): | |
4517
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|
991 collection: |
4444 | 992 /* |
993 * Glue is emitted between several atoms from the []. | |
994 * It is either NFA_OR, or NFA_CONCAT. | |
995 * | |
996 * [abc] expands to 'a b NFA_OR c NFA_OR' (in postfix notation) | |
997 * [^abc] expands to 'a NFA_NOT b NFA_NOT NFA_CONCAT c NFA_NOT | |
998 * NFA_CONCAT NFA_END_NEG_RANGE NFA_CONCAT' (in postfix | |
999 * notation) | |
1000 * | |
1001 */ | |
1002 | |
1003 | |
1004 /* Emit negation atoms, if needed. | |
1005 * The CONCAT below merges the NOT with the previous node. */ | |
1006 #define TRY_NEG() \ | |
1007 if (negated == TRUE) \ | |
1008 { \ | |
1009 EMIT(NFA_NOT); \ | |
1010 } | |
1011 | |
1012 /* Emit glue between important nodes : CONCAT or OR. */ | |
1013 #define EMIT_GLUE() \ | |
1014 if (first == FALSE) \ | |
1015 EMIT(glue); \ | |
1016 else \ | |
1017 first = FALSE; | |
1018 | |
1019 p = regparse; | |
1020 endp = skip_anyof(p); | |
1021 if (*endp == ']') | |
1022 { | |
1023 /* | |
1024 * Try to reverse engineer character classes. For example, | |
1025 * recognize that [0-9] stands for \d and [A-Za-z_] with \h, | |
1026 * and perform the necessary substitutions in the NFA. | |
1027 */ | |
1028 result = nfa_recognize_char_class(regparse, endp, | |
1029 extra == ADD_NL); | |
1030 if (result != FAIL) | |
1031 { | |
1032 if (result >= NFA_DIGIT && result <= NFA_NUPPER) | |
1033 EMIT(result); | |
1034 else /* must be char class + newline */ | |
1035 { | |
1036 EMIT(result - ADD_NL); | |
1037 EMIT(NFA_NEWL); | |
1038 EMIT(NFA_OR); | |
1039 } | |
1040 regparse = endp; | |
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1041 mb_ptr_adv(regparse); |
4444 | 1042 return OK; |
1043 } | |
1044 /* | |
1045 * Failed to recognize a character class. Use the simple | |
1046 * version that turns [abc] into 'a' OR 'b' OR 'c' | |
1047 */ | |
1048 startc = endc = oldstartc = -1; | |
1049 first = TRUE; /* Emitting first atom in this sequence? */ | |
1050 negated = FALSE; | |
1051 glue = NFA_OR; | |
1052 if (*regparse == '^') /* negated range */ | |
1053 { | |
1054 negated = TRUE; | |
1055 glue = NFA_CONCAT; | |
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1056 mb_ptr_adv(regparse); |
4444 | 1057 } |
1058 if (*regparse == '-') | |
1059 { | |
1060 startc = '-'; | |
1061 EMIT(startc); | |
1062 TRY_NEG(); | |
1063 EMIT_GLUE(); | |
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1064 mb_ptr_adv(regparse); |
4444 | 1065 } |
1066 /* Emit the OR branches for each character in the [] */ | |
1067 emit_range = FALSE; | |
1068 while (regparse < endp) | |
1069 { | |
1070 oldstartc = startc; | |
1071 startc = -1; | |
1072 got_coll_char = FALSE; | |
1073 if (*regparse == '[') | |
1074 { | |
1075 /* Check for [: :], [= =], [. .] */ | |
1076 equiclass = collclass = 0; | |
1077 charclass = get_char_class(®parse); | |
1078 if (charclass == CLASS_NONE) | |
1079 { | |
1080 equiclass = get_equi_class(®parse); | |
1081 if (equiclass == 0) | |
1082 collclass = get_coll_element(®parse); | |
1083 } | |
1084 | |
1085 /* Character class like [:alpha:] */ | |
1086 if (charclass != CLASS_NONE) | |
1087 { | |
1088 switch (charclass) | |
1089 { | |
1090 case CLASS_ALNUM: | |
1091 EMIT(NFA_CLASS_ALNUM); | |
1092 break; | |
1093 case CLASS_ALPHA: | |
1094 EMIT(NFA_CLASS_ALPHA); | |
1095 break; | |
1096 case CLASS_BLANK: | |
1097 EMIT(NFA_CLASS_BLANK); | |
1098 break; | |
1099 case CLASS_CNTRL: | |
1100 EMIT(NFA_CLASS_CNTRL); | |
1101 break; | |
1102 case CLASS_DIGIT: | |
1103 EMIT(NFA_CLASS_DIGIT); | |
1104 break; | |
1105 case CLASS_GRAPH: | |
1106 EMIT(NFA_CLASS_GRAPH); | |
1107 break; | |
1108 case CLASS_LOWER: | |
1109 EMIT(NFA_CLASS_LOWER); | |
1110 break; | |
1111 case CLASS_PRINT: | |
1112 EMIT(NFA_CLASS_PRINT); | |
1113 break; | |
1114 case CLASS_PUNCT: | |
1115 EMIT(NFA_CLASS_PUNCT); | |
1116 break; | |
1117 case CLASS_SPACE: | |
1118 EMIT(NFA_CLASS_SPACE); | |
1119 break; | |
1120 case CLASS_UPPER: | |
1121 EMIT(NFA_CLASS_UPPER); | |
1122 break; | |
1123 case CLASS_XDIGIT: | |
1124 EMIT(NFA_CLASS_XDIGIT); | |
1125 break; | |
1126 case CLASS_TAB: | |
1127 EMIT(NFA_CLASS_TAB); | |
1128 break; | |
1129 case CLASS_RETURN: | |
1130 EMIT(NFA_CLASS_RETURN); | |
1131 break; | |
1132 case CLASS_BACKSPACE: | |
1133 EMIT(NFA_CLASS_BACKSPACE); | |
1134 break; | |
1135 case CLASS_ESCAPE: | |
1136 EMIT(NFA_CLASS_ESCAPE); | |
1137 break; | |
1138 } | |
1139 TRY_NEG(); | |
1140 EMIT_GLUE(); | |
1141 continue; | |
1142 } | |
1143 /* Try equivalence class [=a=] and the like */ | |
1144 if (equiclass != 0) | |
1145 { | |
1146 result = nfa_emit_equi_class(equiclass, negated); | |
1147 if (result == FAIL) | |
1148 { | |
1149 /* should never happen */ | |
1150 EMSG_RET_FAIL(_("E868: Error building NFA with equivalence class!")); | |
1151 } | |
1152 EMIT_GLUE(); | |
1153 continue; | |
1154 } | |
1155 /* Try collating class like [. .] */ | |
1156 if (collclass != 0) | |
1157 { | |
1158 startc = collclass; /* allow [.a.]-x as a range */ | |
1159 /* Will emit the proper atom at the end of the | |
1160 * while loop. */ | |
1161 } | |
1162 } | |
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1163 /* Try a range like 'a-x' or '\t-z'. Also allows '-' as a |
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1164 * start character. */ |
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|
1165 if (*regparse == '-' && oldstartc != -1) |
4444 | 1166 { |
1167 emit_range = TRUE; | |
1168 startc = oldstartc; | |
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1169 mb_ptr_adv(regparse); |
4444 | 1170 continue; /* reading the end of the range */ |
1171 } | |
1172 | |
1173 /* Now handle simple and escaped characters. | |
1174 * Only "\]", "\^", "\]" and "\\" are special in Vi. Vim | |
1175 * accepts "\t", "\e", etc., but only when the 'l' flag in | |
1176 * 'cpoptions' is not included. | |
1177 * Posix doesn't recognize backslash at all. | |
1178 */ | |
1179 if (*regparse == '\\' | |
1180 && !cpo_bsl | |
1181 && regparse + 1 <= endp | |
1182 && (vim_strchr(REGEXP_INRANGE, regparse[1]) != NULL | |
1183 || (!cpo_lit | |
1184 && vim_strchr(REGEXP_ABBR, regparse[1]) | |
1185 != NULL) | |
1186 ) | |
1187 ) | |
1188 { | |
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1189 mb_ptr_adv(regparse); |
4444 | 1190 |
4507
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1191 if (*regparse == 'n') |
4444 | 1192 startc = reg_string ? NL : NFA_NEWL; |
1193 else | |
1194 if (*regparse == 'd' | |
1195 || *regparse == 'o' | |
1196 || *regparse == 'x' | |
1197 || *regparse == 'u' | |
1198 || *regparse == 'U' | |
1199 ) | |
1200 { | |
1201 /* TODO(RE) This needs more testing */ | |
1202 startc = coll_get_char(); | |
1203 got_coll_char = TRUE; | |
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1204 mb_ptr_back(old_regparse, regparse); |
4444 | 1205 } |
1206 else | |
1207 { | |
1208 /* \r,\t,\e,\b */ | |
1209 startc = backslash_trans(*regparse); | |
1210 } | |
1211 } | |
1212 | |
1213 /* Normal printable char */ | |
1214 if (startc == -1) | |
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1215 startc = PTR2CHAR(regparse); |
4444 | 1216 |
1217 /* Previous char was '-', so this char is end of range. */ | |
1218 if (emit_range) | |
1219 { | |
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1220 endc = startc; |
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1221 startc = oldstartc; |
4444 | 1222 if (startc > endc) |
1223 EMSG_RET_FAIL(_(e_invrange)); | |
1224 #ifdef FEAT_MBYTE | |
1225 if (has_mbyte && ((*mb_char2len)(startc) > 1 | |
1226 || (*mb_char2len)(endc) > 1)) | |
1227 { | |
1228 if (endc > startc + 256) | |
1229 EMSG_RET_FAIL(_(e_invrange)); | |
1230 /* Emit the range. "startc" was already emitted, so | |
1231 * skip it. */ | |
1232 for (c = startc + 1; c <= endc; c++) | |
1233 { | |
4527
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1234 EMIT(c); |
4444 | 1235 TRY_NEG(); |
1236 EMIT_GLUE(); | |
1237 } | |
1238 } | |
1239 else | |
1240 #endif | |
1241 { | |
1242 #ifdef EBCDIC | |
1243 int alpha_only = FALSE; | |
1244 | |
1245 /* for alphabetical range skip the gaps | |
1246 * 'i'-'j', 'r'-'s', 'I'-'J' and 'R'-'S'. */ | |
1247 if (isalpha(startc) && isalpha(endc)) | |
1248 alpha_only = TRUE; | |
1249 #endif | |
1250 /* Emit the range. "startc" was already emitted, so | |
1251 * skip it. */ | |
1252 for (c = startc + 1; c <= endc; c++) | |
1253 #ifdef EBCDIC | |
1254 if (!alpha_only || isalpha(startc)) | |
1255 #endif | |
1256 { | |
1257 EMIT(c); | |
1258 TRY_NEG(); | |
1259 EMIT_GLUE(); | |
1260 } | |
1261 } | |
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1262 emit_range = FALSE; |
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1263 startc = -1; |
4444 | 1264 } |
1265 else | |
1266 { | |
1267 /* | |
1268 * This char (startc) is not part of a range. Just | |
1269 * emit it. | |
1270 * | |
1271 * Normally, simply emit startc. But if we get char | |
1272 * code=0 from a collating char, then replace it with | |
1273 * 0x0a. | |
1274 * | |
1275 * This is needed to completely mimic the behaviour of | |
1276 * the backtracking engine. | |
1277 */ | |
1278 if (got_coll_char == TRUE && startc == 0) | |
1279 EMIT(0x0a); | |
1280 else | |
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1281 EMIT(startc); |
4444 | 1282 TRY_NEG(); |
1283 EMIT_GLUE(); | |
1284 } | |
1285 | |
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1286 mb_ptr_adv(regparse); |
4444 | 1287 } /* while (p < endp) */ |
1288 | |
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1289 mb_ptr_back(old_regparse, regparse); |
4444 | 1290 if (*regparse == '-') /* if last, '-' is just a char */ |
1291 { | |
1292 EMIT('-'); | |
1293 TRY_NEG(); | |
1294 EMIT_GLUE(); | |
1295 } | |
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1296 mb_ptr_adv(regparse); |
4444 | 1297 |
1298 /* skip the trailing ] */ | |
1299 regparse = endp; | |
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1300 mb_ptr_adv(regparse); |
4444 | 1301 if (negated == TRUE) |
1302 { | |
1303 /* Mark end of negated char range */ | |
1304 EMIT(NFA_END_NEG_RANGE); | |
1305 EMIT(NFA_CONCAT); | |
1306 } | |
4615
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1307 |
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1308 /* \_[] also matches \n but it's not negated */ |
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1309 if (extra == ADD_NL) |
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1310 { |
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1311 EMIT(reg_string ? NL : NFA_NEWL); |
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1312 EMIT(NFA_OR); |
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1313 } |
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updated for version 7.3.1055
Bram Moolenaar <bram@vim.org>
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4583
diff
changeset
|
1314 |
4444 | 1315 return OK; |
4529
432a6b8c7d93
updated for version 7.3.1012
Bram Moolenaar <bram@vim.org>
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4527
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|
1316 } /* if exists closing ] */ |
432a6b8c7d93
updated for version 7.3.1012
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diff
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|
1317 |
432a6b8c7d93
updated for version 7.3.1012
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diff
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|
1318 if (reg_strict) |
4444 | 1319 { |
1320 syntax_error = TRUE; | |
1321 EMSG_RET_FAIL(_(e_missingbracket)); | |
1322 } | |
4529
432a6b8c7d93
updated for version 7.3.1012
Bram Moolenaar <bram@vim.org>
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|
1323 /* FALLTHROUGH */ |
432a6b8c7d93
updated for version 7.3.1012
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diff
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|
1324 |
4444 | 1325 default: |
1326 { | |
1327 #ifdef FEAT_MBYTE | |
1328 int plen; | |
1329 | |
1330 nfa_do_multibyte: | |
4543
08ac46980953
updated for version 7.3.1019
Bram Moolenaar <bram@vim.org>
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4541
diff
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|
1331 /* plen is length of current char with composing chars */ |
08ac46980953
updated for version 7.3.1019
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diff
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|
1332 if (enc_utf8 && ((*mb_char2len)(c) |
08ac46980953
updated for version 7.3.1019
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4541
diff
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|
1333 != (plen = (*mb_ptr2len)(old_regparse)) |
08ac46980953
updated for version 7.3.1019
Bram Moolenaar <bram@vim.org>
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4541
diff
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|
1334 || utf_iscomposing(c))) |
4444 | 1335 { |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
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4547
diff
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|
1336 int i = 0; |
849180347ac3
updated for version 7.3.1022
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4547
diff
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|
1337 |
4535
45f97c349537
updated for version 7.3.1015
Bram Moolenaar <bram@vim.org>
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4533
diff
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|
1338 /* 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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|
1339 * or more composing characters. |
4527
55bcaa1d2749
updated for version 7.3.1011
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diff
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|
1340 * This requires creating a separate atom as if enclosing |
55bcaa1d2749
updated for version 7.3.1011
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diff
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|
1341 * the characters in (), where NFA_COMPOSING is the ( and |
55bcaa1d2749
updated for version 7.3.1011
Bram Moolenaar <bram@vim.org>
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4525
diff
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|
1342 * NFA_END_COMPOSING is the ). Note that right now we are |
4444 | 1343 * building the postfix form, not the NFA itself; |
1344 * a composing char could be: a, b, c, NFA_COMPOSING | |
4527
55bcaa1d2749
updated for version 7.3.1011
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|
1345 * where 'b' and 'c' are chars with codes > 256. */ |
55bcaa1d2749
updated for version 7.3.1011
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|
1346 for (;;) |
55bcaa1d2749
updated for version 7.3.1011
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diff
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|
1347 { |
55bcaa1d2749
updated for version 7.3.1011
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|
1348 EMIT(c); |
55bcaa1d2749
updated for version 7.3.1011
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diff
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|
1349 if (i > 0) |
55bcaa1d2749
updated for version 7.3.1011
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4525
diff
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|
1350 EMIT(NFA_CONCAT); |
4529
432a6b8c7d93
updated for version 7.3.1012
Bram Moolenaar <bram@vim.org>
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4527
diff
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|
1351 if ((i += utf_char2len(c)) >= plen) |
4527
55bcaa1d2749
updated for version 7.3.1011
Bram Moolenaar <bram@vim.org>
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|
1352 break; |
55bcaa1d2749
updated for version 7.3.1011
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4525
diff
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|
1353 c = utf_ptr2char(old_regparse + i); |
55bcaa1d2749
updated for version 7.3.1011
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|
1354 } |
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updated for version 7.3.1011
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diff
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|
1355 EMIT(NFA_COMPOSING); |
4444 | 1356 regparse = old_regparse + plen; |
1357 } | |
1358 else | |
1359 #endif | |
1360 { | |
1361 c = no_Magic(c); | |
1362 EMIT(c); | |
1363 } | |
1364 return OK; | |
1365 } | |
1366 } | |
1367 | |
1368 #undef TRY_NEG | |
1369 #undef EMIT_GLUE | |
1370 | |
1371 return OK; | |
1372 } | |
1373 | |
1374 /* | |
1375 * Parse something followed by possible [*+=]. | |
1376 * | |
1377 * A piece is an atom, possibly followed by a multi, an indication of how many | |
1378 * times the atom can be matched. Example: "a*" matches any sequence of "a" | |
1379 * characters: "", "a", "aa", etc. | |
1380 * | |
1381 * piece ::= atom | |
1382 * or atom multi | |
1383 */ | |
1384 static int | |
1385 nfa_regpiece() | |
1386 { | |
1387 int i; | |
1388 int op; | |
1389 int ret; | |
1390 long minval, maxval; | |
1391 int greedy = TRUE; /* Braces are prefixed with '-' ? */ | |
4679
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updated for version 7.3.1087
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|
1392 parse_state_T old_state; |
4d92b873acef
updated for version 7.3.1087
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|
1393 parse_state_T new_state; |
4444 | 1394 int c2; |
4651
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updated for version 7.3.1073
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|
1395 int old_post_pos; |
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updated for version 7.3.1073
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|
1396 int my_post_start; |
4444 | 1397 int quest; |
1398 | |
4679
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|
1399 /* Save the current parse state, so that we can use it if <atom>{m,n} is |
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|
1400 * next. */ |
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updated for version 7.3.1087
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|
1401 save_parse_state(&old_state); |
4d92b873acef
updated for version 7.3.1087
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|
1402 |
4444 | 1403 /* store current pos in the postfix form, for \{m,n} involving 0s */ |
4651
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diff
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|
1404 my_post_start = (int)(post_ptr - post_start); |
4444 | 1405 |
1406 ret = nfa_regatom(); | |
1407 if (ret == FAIL) | |
1408 return FAIL; /* cascaded error */ | |
1409 | |
1410 op = peekchr(); | |
1411 if (re_multi_type(op) == NOT_MULTI) | |
1412 return OK; | |
1413 | |
1414 skipchr(); | |
1415 switch (op) | |
1416 { | |
1417 case Magic('*'): | |
1418 EMIT(NFA_STAR); | |
1419 break; | |
1420 | |
1421 case Magic('+'): | |
1422 /* | |
1423 * Trick: Normally, (a*)\+ would match the whole input "aaa". The | |
1424 * first and only submatch would be "aaa". But the backtracking | |
1425 * engine interprets the plus as "try matching one more time", and | |
1426 * a* matches a second time at the end of the input, the empty | |
1427 * string. | |
1428 * The submatch will the empty string. | |
1429 * | |
4673
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|
1430 * In order to be consistent with the old engine, we replace |
05d57d7c2d55
updated for version 7.3.1084
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|
1431 * <atom>+ with <atom><atom>* |
4444 | 1432 */ |
4679
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|
1433 restore_parse_state(&old_state); |
4444 | 1434 curchr = -1; |
1435 if (nfa_regatom() == FAIL) | |
1436 return FAIL; | |
1437 EMIT(NFA_STAR); | |
1438 EMIT(NFA_CONCAT); | |
1439 skipchr(); /* skip the \+ */ | |
1440 break; | |
1441 | |
1442 case Magic('@'): | |
4682
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|
1443 c2 = getdecchrs(); |
4444 | 1444 op = no_Magic(getchr()); |
4682
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|
1445 i = 0; |
4444 | 1446 switch(op) |
1447 { | |
1448 case '=': | |
4682
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|
1449 /* \@= */ |
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|
1450 i = NFA_PREV_ATOM_NO_WIDTH; |
4444 | 1451 break; |
4661
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updated for version 7.3.1078
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|
1452 case '!': |
4682
2f51ee8825db
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|
1453 /* \@! */ |
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|
1454 i = NFA_PREV_ATOM_NO_WIDTH_NEG; |
4661
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updated for version 7.3.1078
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|
1455 break; |
4444 | 1456 case '<': |
4682
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|
1457 op = no_Magic(getchr()); |
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|
1458 if (op == '=') |
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|
1459 /* \@<= */ |
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diff
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|
1460 i = NFA_PREV_ATOM_JUST_BEFORE; |
2f51ee8825db
updated for version 7.3.1088
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|
1461 else if (op == '!') |
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updated for version 7.3.1088
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|
1462 /* \@<! */ |
2f51ee8825db
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diff
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|
1463 i = NFA_PREV_ATOM_JUST_BEFORE_NEG; |
2f51ee8825db
updated for version 7.3.1088
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|
1464 break; |
4444 | 1465 case '>': |
4682
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|
1466 /* \@> Not supported yet */ |
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updated for version 7.3.1088
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|
1467 /* i = NFA_PREV_ATOM_LIKE_PATTERN; */ |
4444 | 1468 return FAIL; |
1469 } | |
4682
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|
1470 if (i == 0) |
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|
1471 { |
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|
1472 syntax_error = TRUE; |
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|
1473 EMSGN(_("E869: (NFA) Unknown operator '\\@%c'"), op); |
2f51ee8825db
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|
1474 return FAIL; |
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|
1475 } |
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|
1476 EMIT(i); |
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|
1477 if (i == NFA_PREV_ATOM_JUST_BEFORE |
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|
1478 || i == NFA_PREV_ATOM_JUST_BEFORE_NEG) |
2f51ee8825db
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diff
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|
1479 EMIT(c2); |
4444 | 1480 break; |
1481 | |
1482 case Magic('?'): | |
1483 case Magic('='): | |
1484 EMIT(NFA_QUEST); | |
1485 break; | |
1486 | |
1487 case Magic('{'): | |
1488 /* a{2,5} will expand to 'aaa?a?a?' | |
1489 * a{-1,3} will expand to 'aa??a??', where ?? is the nongreedy | |
1490 * version of '?' | |
1491 * \v(ab){2,3} will expand to '(ab)(ab)(ab)?', where all the | |
1492 * parenthesis have the same id | |
1493 */ | |
1494 | |
1495 greedy = TRUE; | |
1496 c2 = peekchr(); | |
1497 if (c2 == '-' || c2 == Magic('-')) | |
1498 { | |
1499 skipchr(); | |
1500 greedy = FALSE; | |
1501 } | |
1502 if (!read_limits(&minval, &maxval)) | |
1503 { | |
1504 syntax_error = TRUE; | |
1505 EMSG_RET_FAIL(_("E870: (NFA regexp) Error reading repetition limits")); | |
1506 } | |
1507 /* <atom>{0,inf}, <atom>{0,} and <atom>{} are equivalent to | |
1508 * <atom>* */ | |
4675
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|
1509 if (minval == 0 && maxval == MAX_LIMIT) |
4444 | 1510 { |
4675
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|
1511 if (greedy) |
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|
1512 /* \{}, \{0,} */ |
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|
1513 EMIT(NFA_STAR); |
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|
1514 else |
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|
1515 /* \{-}, \{-0,} */ |
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|
1516 EMIT(NFA_STAR_NONGREEDY); |
4444 | 1517 break; |
1518 } | |
1519 | |
1520 /* Special case: x{0} or x{-0} */ | |
1521 if (maxval == 0) | |
1522 { | |
1523 /* Ignore result of previous call to nfa_regatom() */ | |
4651
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|
1524 post_ptr = post_start + my_post_start; |
4444 | 1525 /* NFA_SKIP_CHAR has 0-length and works everywhere */ |
1526 EMIT(NFA_SKIP_CHAR); | |
1527 return OK; | |
1528 } | |
1529 | |
1530 /* Ignore previous call to nfa_regatom() */ | |
4651
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|
1531 post_ptr = post_start + my_post_start; |
4679
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|
1532 /* Save parse state after the repeated atom and the \{} */ |
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updated for version 7.3.1087
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|
1533 save_parse_state(&new_state); |
4444 | 1534 |
1535 quest = (greedy == TRUE? NFA_QUEST : NFA_QUEST_NONGREEDY); | |
1536 for (i = 0; i < maxval; i++) | |
1537 { | |
1538 /* Goto beginning of the repeated atom */ | |
4679
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|
1539 restore_parse_state(&old_state); |
4651
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|
1540 old_post_pos = (int)(post_ptr - post_start); |
4444 | 1541 if (nfa_regatom() == FAIL) |
1542 return FAIL; | |
1543 /* after "minval" times, atoms are optional */ | |
1544 if (i + 1 > minval) | |
4673
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|
1545 { |
05d57d7c2d55
updated for version 7.3.1084
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|
1546 if (maxval == MAX_LIMIT) |
4675
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|
1547 { |
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|
1548 if (greedy) |
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|
1549 EMIT(NFA_STAR); |
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|
1550 else |
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|
1551 EMIT(NFA_STAR_NONGREEDY); |
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|
1552 } |
4673
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|
1553 else |
05d57d7c2d55
updated for version 7.3.1084
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|
1554 EMIT(quest); |
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1555 } |
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1556 if (old_post_pos != my_post_start) |
4444 | 1557 EMIT(NFA_CONCAT); |
4673
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1558 if (i + 1 > minval && maxval == MAX_LIMIT) |
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1559 break; |
4444 | 1560 } |
1561 | |
1562 /* Go to just after the repeated atom and the \{} */ | |
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1563 restore_parse_state(&new_state); |
4444 | 1564 curchr = -1; |
1565 | |
1566 break; | |
1567 | |
1568 | |
1569 default: | |
1570 break; | |
1571 } /* end switch */ | |
1572 | |
1573 if (re_multi_type(peekchr()) != NOT_MULTI) | |
1574 { | |
1575 /* Can't have a multi follow a multi. */ | |
1576 syntax_error = TRUE; | |
1577 EMSG_RET_FAIL(_("E871: (NFA regexp) Can't have a multi follow a multi !")); | |
1578 } | |
1579 | |
1580 return OK; | |
1581 } | |
1582 | |
1583 /* | |
1584 * Parse one or more pieces, concatenated. It matches a match for the | |
1585 * first piece, followed by a match for the second piece, etc. Example: | |
1586 * "f[0-9]b", first matches "f", then a digit and then "b". | |
1587 * | |
1588 * concat ::= piece | |
1589 * or piece piece | |
1590 * or piece piece piece | |
1591 * etc. | |
1592 */ | |
1593 static int | |
1594 nfa_regconcat() | |
1595 { | |
1596 int cont = TRUE; | |
1597 int first = TRUE; | |
1598 | |
1599 while (cont) | |
1600 { | |
1601 switch (peekchr()) | |
1602 { | |
1603 case NUL: | |
1604 case Magic('|'): | |
1605 case Magic('&'): | |
1606 case Magic(')'): | |
1607 cont = FALSE; | |
1608 break; | |
1609 | |
1610 case Magic('Z'): | |
1611 #ifdef FEAT_MBYTE | |
1612 regflags |= RF_ICOMBINE; | |
1613 #endif | |
1614 skipchr_keepstart(); | |
1615 break; | |
1616 case Magic('c'): | |
1617 regflags |= RF_ICASE; | |
1618 skipchr_keepstart(); | |
1619 break; | |
1620 case Magic('C'): | |
1621 regflags |= RF_NOICASE; | |
1622 skipchr_keepstart(); | |
1623 break; | |
1624 case Magic('v'): | |
1625 reg_magic = MAGIC_ALL; | |
1626 skipchr_keepstart(); | |
1627 curchr = -1; | |
1628 break; | |
1629 case Magic('m'): | |
1630 reg_magic = MAGIC_ON; | |
1631 skipchr_keepstart(); | |
1632 curchr = -1; | |
1633 break; | |
1634 case Magic('M'): | |
1635 reg_magic = MAGIC_OFF; | |
1636 skipchr_keepstart(); | |
1637 curchr = -1; | |
1638 break; | |
1639 case Magic('V'): | |
1640 reg_magic = MAGIC_NONE; | |
1641 skipchr_keepstart(); | |
1642 curchr = -1; | |
1643 break; | |
1644 | |
1645 default: | |
1646 if (nfa_regpiece() == FAIL) | |
1647 return FAIL; | |
1648 if (first == FALSE) | |
1649 EMIT(NFA_CONCAT); | |
1650 else | |
1651 first = FALSE; | |
1652 break; | |
1653 } | |
1654 } | |
1655 | |
1656 return OK; | |
1657 } | |
1658 | |
1659 /* | |
1660 * Parse a branch, one or more concats, separated by "\&". It matches the | |
1661 * last concat, but only if all the preceding concats also match at the same | |
1662 * position. Examples: | |
1663 * "foobeep\&..." matches "foo" in "foobeep". | |
1664 * ".*Peter\&.*Bob" matches in a line containing both "Peter" and "Bob" | |
1665 * | |
1666 * branch ::= concat | |
1667 * or concat \& concat | |
1668 * or concat \& concat \& concat | |
1669 * etc. | |
1670 */ | |
1671 static int | |
1672 nfa_regbranch() | |
1673 { | |
1674 int ch; | |
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1675 int old_post_pos; |
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1676 |
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1677 old_post_pos = (int)(post_ptr - post_start); |
4444 | 1678 |
1679 /* First branch, possibly the only one */ | |
1680 if (nfa_regconcat() == FAIL) | |
1681 return FAIL; | |
1682 | |
1683 ch = peekchr(); | |
1684 /* Try next concats */ | |
1685 while (ch == Magic('&')) | |
1686 { | |
1687 skipchr(); | |
1688 EMIT(NFA_NOPEN); | |
1689 EMIT(NFA_PREV_ATOM_NO_WIDTH); | |
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1690 old_post_pos = (int)(post_ptr - post_start); |
4444 | 1691 if (nfa_regconcat() == FAIL) |
1692 return FAIL; | |
1693 /* if concat is empty, skip a input char. But do emit a node */ | |
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1694 if (old_post_pos == (int)(post_ptr - post_start)) |
4444 | 1695 EMIT(NFA_SKIP_CHAR); |
1696 EMIT(NFA_CONCAT); | |
1697 ch = peekchr(); | |
1698 } | |
1699 | |
1700 /* Even if a branch is empty, emit one node for it */ | |
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1701 if (old_post_pos == (int)(post_ptr - post_start)) |
4444 | 1702 EMIT(NFA_SKIP_CHAR); |
1703 | |
1704 return OK; | |
1705 } | |
1706 | |
1707 /* | |
1708 * Parse a pattern, one or more branches, separated by "\|". It matches | |
1709 * anything that matches one of the branches. Example: "foo\|beep" matches | |
1710 * "foo" and matches "beep". If more than one branch matches, the first one | |
1711 * is used. | |
1712 * | |
1713 * pattern ::= branch | |
1714 * or branch \| branch | |
1715 * or branch \| branch \| branch | |
1716 * etc. | |
1717 */ | |
1718 static int | |
1719 nfa_reg(paren) | |
1720 int paren; /* REG_NOPAREN, REG_PAREN, REG_NPAREN or REG_ZPAREN */ | |
1721 { | |
1722 int parno = 0; | |
1723 | |
1724 if (paren == REG_PAREN) | |
1725 { | |
1726 if (regnpar >= NSUBEXP) /* Too many `(' */ | |
1727 { | |
1728 syntax_error = TRUE; | |
1729 EMSG_RET_FAIL(_("E872: (NFA regexp) Too many '('")); | |
1730 } | |
1731 parno = regnpar++; | |
1732 } | |
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1733 #ifdef FEAT_SYN_HL |
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1734 else if (paren == REG_ZPAREN) |
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1735 { |
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1736 /* Make a ZOPEN node. */ |
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1737 if (regnzpar >= NSUBEXP) |
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1738 { |
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1739 syntax_error = TRUE; |
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1740 EMSG_RET_FAIL(_("E879: (NFA regexp) Too many \\z(")); |
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1741 } |
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1742 parno = regnzpar++; |
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1743 } |
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1744 #endif |
4444 | 1745 |
1746 if (nfa_regbranch() == FAIL) | |
1747 return FAIL; /* cascaded error */ | |
1748 | |
1749 while (peekchr() == Magic('|')) | |
1750 { | |
1751 skipchr(); | |
1752 if (nfa_regbranch() == FAIL) | |
1753 return FAIL; /* cascaded error */ | |
1754 EMIT(NFA_OR); | |
1755 } | |
1756 | |
1757 /* Check for proper termination. */ | |
1758 if (paren != REG_NOPAREN && getchr() != Magic(')')) | |
1759 { | |
1760 syntax_error = TRUE; | |
1761 if (paren == REG_NPAREN) | |
1762 EMSG2_RET_FAIL(_(e_unmatchedpp), reg_magic == MAGIC_ALL); | |
1763 else | |
1764 EMSG2_RET_FAIL(_(e_unmatchedp), reg_magic == MAGIC_ALL); | |
1765 } | |
1766 else if (paren == REG_NOPAREN && peekchr() != NUL) | |
1767 { | |
1768 syntax_error = TRUE; | |
1769 if (peekchr() == Magic(')')) | |
1770 EMSG2_RET_FAIL(_(e_unmatchedpar), reg_magic == MAGIC_ALL); | |
1771 else | |
1772 EMSG_RET_FAIL(_("E873: (NFA regexp) proper termination error")); | |
1773 } | |
1774 /* | |
1775 * Here we set the flag allowing back references to this set of | |
1776 * parentheses. | |
1777 */ | |
1778 if (paren == REG_PAREN) | |
1779 { | |
1780 had_endbrace[parno] = TRUE; /* have seen the close paren */ | |
1781 EMIT(NFA_MOPEN + parno); | |
1782 } | |
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1783 #ifdef FEAT_SYN_HL |
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1784 else if (paren == REG_ZPAREN) |
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1785 EMIT(NFA_ZOPEN + parno); |
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1786 #endif |
4444 | 1787 |
1788 return OK; | |
1789 } | |
1790 | |
1791 #ifdef DEBUG | |
1792 static char_u code[50]; | |
1793 | |
1794 static void | |
1795 nfa_set_code(c) | |
1796 int c; | |
1797 { | |
1798 int addnl = FALSE; | |
1799 | |
1800 if (c >= NFA_FIRST_NL && c <= NFA_LAST_NL) | |
1801 { | |
1802 addnl = TRUE; | |
1803 c -= ADD_NL; | |
1804 } | |
1805 | |
1806 STRCPY(code, ""); | |
1807 switch (c) | |
1808 { | |
1809 case NFA_MATCH: STRCPY(code, "NFA_MATCH "); break; | |
1810 case NFA_SPLIT: STRCPY(code, "NFA_SPLIT "); break; | |
1811 case NFA_CONCAT: STRCPY(code, "NFA_CONCAT "); break; | |
1812 case NFA_NEWL: STRCPY(code, "NFA_NEWL "); break; | |
1813 case NFA_ZSTART: STRCPY(code, "NFA_ZSTART"); break; | |
1814 case NFA_ZEND: STRCPY(code, "NFA_ZEND"); break; | |
1815 | |
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1816 case NFA_BACKREF1: STRCPY(code, "NFA_BACKREF1"); break; |
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1817 case NFA_BACKREF2: STRCPY(code, "NFA_BACKREF2"); break; |
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1818 case NFA_BACKREF3: STRCPY(code, "NFA_BACKREF3"); break; |
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1819 case NFA_BACKREF4: STRCPY(code, "NFA_BACKREF4"); break; |
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1820 case NFA_BACKREF5: STRCPY(code, "NFA_BACKREF5"); break; |
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1821 case NFA_BACKREF6: STRCPY(code, "NFA_BACKREF6"); break; |
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1822 case NFA_BACKREF7: STRCPY(code, "NFA_BACKREF7"); break; |
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1823 case NFA_BACKREF8: STRCPY(code, "NFA_BACKREF8"); break; |
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1824 case NFA_BACKREF9: STRCPY(code, "NFA_BACKREF9"); break; |
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1825 #ifdef FEAT_SYN_HL |
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1826 case NFA_ZREF1: STRCPY(code, "NFA_ZREF1"); break; |
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1827 case NFA_ZREF2: STRCPY(code, "NFA_ZREF2"); break; |
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1828 case NFA_ZREF3: STRCPY(code, "NFA_ZREF3"); break; |
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1829 case NFA_ZREF4: STRCPY(code, "NFA_ZREF4"); break; |
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1830 case NFA_ZREF5: STRCPY(code, "NFA_ZREF5"); break; |
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1831 case NFA_ZREF6: STRCPY(code, "NFA_ZREF6"); break; |
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1832 case NFA_ZREF7: STRCPY(code, "NFA_ZREF7"); break; |
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1833 case NFA_ZREF8: STRCPY(code, "NFA_ZREF8"); break; |
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1834 case NFA_ZREF9: STRCPY(code, "NFA_ZREF9"); break; |
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1835 #endif |
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1836 case NFA_SKIP: STRCPY(code, "NFA_SKIP"); break; |
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1837 |
4444 | 1838 case NFA_PREV_ATOM_NO_WIDTH: |
1839 STRCPY(code, "NFA_PREV_ATOM_NO_WIDTH"); break; | |
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1840 case NFA_PREV_ATOM_NO_WIDTH_NEG: |
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1841 STRCPY(code, "NFA_PREV_ATOM_NO_WIDTH_NEG"); break; |
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1842 case NFA_PREV_ATOM_JUST_BEFORE: |
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1843 STRCPY(code, "NFA_PREV_ATOM_JUST_BEFORE"); break; |
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1844 case NFA_PREV_ATOM_JUST_BEFORE_NEG: |
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1845 STRCPY(code, "NFA_PREV_ATOM_JUST_BEFORE_NEG"); break; |
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1846 case NFA_NOPEN: STRCPY(code, "NFA_NOPEN"); break; |
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1847 case NFA_NCLOSE: STRCPY(code, "NFA_NCLOSE"); break; |
4444 | 1848 case NFA_START_INVISIBLE: STRCPY(code, "NFA_START_INVISIBLE"); break; |
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1849 case NFA_START_INVISIBLE_BEFORE: |
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1850 STRCPY(code, "NFA_START_INVISIBLE_BEFORE"); break; |
4444 | 1851 case NFA_END_INVISIBLE: STRCPY(code, "NFA_END_INVISIBLE"); break; |
1852 | |
1853 case NFA_COMPOSING: STRCPY(code, "NFA_COMPOSING"); break; | |
1854 case NFA_END_COMPOSING: STRCPY(code, "NFA_END_COMPOSING"); break; | |
1855 | |
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1856 case NFA_MOPEN: |
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1857 case NFA_MOPEN1: |
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1858 case NFA_MOPEN2: |
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1859 case NFA_MOPEN3: |
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1860 case NFA_MOPEN4: |
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1861 case NFA_MOPEN5: |
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1862 case NFA_MOPEN6: |
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1863 case NFA_MOPEN7: |
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1864 case NFA_MOPEN8: |
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1865 case NFA_MOPEN9: |
4444 | 1866 STRCPY(code, "NFA_MOPEN(x)"); |
1867 code[10] = c - NFA_MOPEN + '0'; | |
1868 break; | |
4686
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1869 case NFA_MCLOSE: |
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1870 case NFA_MCLOSE1: |
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1871 case NFA_MCLOSE2: |
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1872 case NFA_MCLOSE3: |
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1873 case NFA_MCLOSE4: |
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1874 case NFA_MCLOSE5: |
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1875 case NFA_MCLOSE6: |
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1876 case NFA_MCLOSE7: |
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1877 case NFA_MCLOSE8: |
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1878 case NFA_MCLOSE9: |
4444 | 1879 STRCPY(code, "NFA_MCLOSE(x)"); |
1880 code[11] = c - NFA_MCLOSE + '0'; | |
1881 break; | |
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1882 #ifdef FEAT_SYN_HL |
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1883 case NFA_ZOPEN: |
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1884 case NFA_ZOPEN1: |
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1885 case NFA_ZOPEN2: |
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1886 case NFA_ZOPEN3: |
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1887 case NFA_ZOPEN4: |
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1888 case NFA_ZOPEN5: |
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1889 case NFA_ZOPEN6: |
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1890 case NFA_ZOPEN7: |
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1891 case NFA_ZOPEN8: |
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1892 case NFA_ZOPEN9: |
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1893 STRCPY(code, "NFA_ZOPEN(x)"); |
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1894 code[10] = c - NFA_ZOPEN + '0'; |
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1895 break; |
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1896 case NFA_ZCLOSE: |
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1897 case NFA_ZCLOSE1: |
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1898 case NFA_ZCLOSE2: |
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1899 case NFA_ZCLOSE3: |
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1900 case NFA_ZCLOSE4: |
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1901 case NFA_ZCLOSE5: |
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1902 case NFA_ZCLOSE6: |
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1903 case NFA_ZCLOSE7: |
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1904 case NFA_ZCLOSE8: |
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1905 case NFA_ZCLOSE9: |
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1906 STRCPY(code, "NFA_ZCLOSE(x)"); |
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1907 code[11] = c - NFA_ZCLOSE + '0'; |
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1908 break; |
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1909 #endif |
4444 | 1910 case NFA_EOL: STRCPY(code, "NFA_EOL "); break; |
1911 case NFA_BOL: STRCPY(code, "NFA_BOL "); break; | |
1912 case NFA_EOW: STRCPY(code, "NFA_EOW "); break; | |
1913 case NFA_BOW: STRCPY(code, "NFA_BOW "); break; | |
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1914 case NFA_EOF: STRCPY(code, "NFA_EOF "); break; |
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1915 case NFA_BOF: STRCPY(code, "NFA_BOF "); break; |
4444 | 1916 case NFA_STAR: STRCPY(code, "NFA_STAR "); break; |
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1917 case NFA_STAR_NONGREEDY: STRCPY(code, "NFA_STAR_NONGREEDY "); break; |
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1918 case NFA_QUEST: STRCPY(code, "NFA_QUEST"); break; |
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1919 case NFA_QUEST_NONGREEDY: STRCPY(code, "NFA_QUEST_NON_GREEDY"); break; |
4444 | 1920 case NFA_NOT: STRCPY(code, "NFA_NOT "); break; |
1921 case NFA_SKIP_CHAR: STRCPY(code, "NFA_SKIP_CHAR"); break; | |
1922 case NFA_OR: STRCPY(code, "NFA_OR"); break; | |
1923 case NFA_END_NEG_RANGE: STRCPY(code, "NFA_END_NEG_RANGE"); break; | |
1924 case NFA_CLASS_ALNUM: STRCPY(code, "NFA_CLASS_ALNUM"); break; | |
1925 case NFA_CLASS_ALPHA: STRCPY(code, "NFA_CLASS_ALPHA"); break; | |
1926 case NFA_CLASS_BLANK: STRCPY(code, "NFA_CLASS_BLANK"); break; | |
1927 case NFA_CLASS_CNTRL: STRCPY(code, "NFA_CLASS_CNTRL"); break; | |
1928 case NFA_CLASS_DIGIT: STRCPY(code, "NFA_CLASS_DIGIT"); break; | |
1929 case NFA_CLASS_GRAPH: STRCPY(code, "NFA_CLASS_GRAPH"); break; | |
1930 case NFA_CLASS_LOWER: STRCPY(code, "NFA_CLASS_LOWER"); break; | |
1931 case NFA_CLASS_PRINT: STRCPY(code, "NFA_CLASS_PRINT"); break; | |
1932 case NFA_CLASS_PUNCT: STRCPY(code, "NFA_CLASS_PUNCT"); break; | |
1933 case NFA_CLASS_SPACE: STRCPY(code, "NFA_CLASS_SPACE"); break; | |
1934 case NFA_CLASS_UPPER: STRCPY(code, "NFA_CLASS_UPPER"); break; | |
1935 case NFA_CLASS_XDIGIT: STRCPY(code, "NFA_CLASS_XDIGIT"); break; | |
1936 case NFA_CLASS_TAB: STRCPY(code, "NFA_CLASS_TAB"); break; | |
1937 case NFA_CLASS_RETURN: STRCPY(code, "NFA_CLASS_RETURN"); break; | |
1938 case NFA_CLASS_BACKSPACE: STRCPY(code, "NFA_CLASS_BACKSPACE"); break; | |
1939 case NFA_CLASS_ESCAPE: STRCPY(code, "NFA_CLASS_ESCAPE"); break; | |
1940 | |
1941 case NFA_ANY: STRCPY(code, "NFA_ANY"); break; | |
1942 case NFA_IDENT: STRCPY(code, "NFA_IDENT"); break; | |
1943 case NFA_SIDENT:STRCPY(code, "NFA_SIDENT"); break; | |
1944 case NFA_KWORD: STRCPY(code, "NFA_KWORD"); break; | |
1945 case NFA_SKWORD:STRCPY(code, "NFA_SKWORD"); break; | |
1946 case NFA_FNAME: STRCPY(code, "NFA_FNAME"); break; | |
1947 case NFA_SFNAME:STRCPY(code, "NFA_SFNAME"); break; | |
1948 case NFA_PRINT: STRCPY(code, "NFA_PRINT"); break; | |
1949 case NFA_SPRINT:STRCPY(code, "NFA_SPRINT"); break; | |
1950 case NFA_WHITE: STRCPY(code, "NFA_WHITE"); break; | |
1951 case NFA_NWHITE:STRCPY(code, "NFA_NWHITE"); break; | |
1952 case NFA_DIGIT: STRCPY(code, "NFA_DIGIT"); break; | |
1953 case NFA_NDIGIT:STRCPY(code, "NFA_NDIGIT"); break; | |
1954 case NFA_HEX: STRCPY(code, "NFA_HEX"); break; | |
1955 case NFA_NHEX: STRCPY(code, "NFA_NHEX"); break; | |
1956 case NFA_OCTAL: STRCPY(code, "NFA_OCTAL"); break; | |
1957 case NFA_NOCTAL:STRCPY(code, "NFA_NOCTAL"); break; | |
1958 case NFA_WORD: STRCPY(code, "NFA_WORD"); break; | |
1959 case NFA_NWORD: STRCPY(code, "NFA_NWORD"); break; | |
1960 case NFA_HEAD: STRCPY(code, "NFA_HEAD"); break; | |
1961 case NFA_NHEAD: STRCPY(code, "NFA_NHEAD"); break; | |
1962 case NFA_ALPHA: STRCPY(code, "NFA_ALPHA"); break; | |
1963 case NFA_NALPHA:STRCPY(code, "NFA_NALPHA"); break; | |
1964 case NFA_LOWER: STRCPY(code, "NFA_LOWER"); break; | |
1965 case NFA_NLOWER:STRCPY(code, "NFA_NLOWER"); break; | |
1966 case NFA_UPPER: STRCPY(code, "NFA_UPPER"); break; | |
1967 case NFA_NUPPER:STRCPY(code, "NFA_NUPPER"); break; | |
1968 | |
1969 default: | |
1970 STRCPY(code, "CHAR(x)"); | |
1971 code[5] = c; | |
1972 } | |
1973 | |
1974 if (addnl == TRUE) | |
1975 STRCAT(code, " + NEWLINE "); | |
1976 | |
1977 } | |
1978 | |
1979 #ifdef ENABLE_LOG | |
1980 static FILE *log_fd; | |
1981 | |
1982 /* | |
1983 * Print the postfix notation of the current regexp. | |
1984 */ | |
1985 static void | |
1986 nfa_postfix_dump(expr, retval) | |
1987 char_u *expr; | |
1988 int retval; | |
1989 { | |
1990 int *p; | |
1991 FILE *f; | |
1992 | |
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1993 f = fopen(NFA_REGEXP_DUMP_LOG, "a"); |
4444 | 1994 if (f != NULL) |
1995 { | |
1996 fprintf(f, "\n-------------------------\n"); | |
1997 if (retval == FAIL) | |
1998 fprintf(f, ">>> NFA engine failed ... \n"); | |
1999 else if (retval == OK) | |
2000 fprintf(f, ">>> NFA engine succeeded !\n"); | |
2001 fprintf(f, "Regexp: \"%s\"\nPostfix notation (char): \"", expr); | |
4464 | 2002 for (p = post_start; *p && p < post_end; p++) |
4444 | 2003 { |
2004 nfa_set_code(*p); | |
2005 fprintf(f, "%s, ", code); | |
2006 } | |
2007 fprintf(f, "\"\nPostfix notation (int): "); | |
4464 | 2008 for (p = post_start; *p && p < post_end; p++) |
4444 | 2009 fprintf(f, "%d ", *p); |
2010 fprintf(f, "\n\n"); | |
2011 fclose(f); | |
2012 } | |
2013 } | |
2014 | |
2015 /* | |
2016 * Print the NFA starting with a root node "state". | |
2017 */ | |
2018 static void | |
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2019 nfa_print_state(debugf, state) |
4444 | 2020 FILE *debugf; |
2021 nfa_state_T *state; | |
2022 { | |
4533
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2023 garray_T indent; |
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2024 |
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2025 ga_init2(&indent, 1, 64); |
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2026 ga_append(&indent, '\0'); |
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2027 nfa_print_state2(debugf, state, &indent); |
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2028 ga_clear(&indent); |
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2029 } |
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2030 |
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2031 static void |
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2032 nfa_print_state2(debugf, state, indent) |
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2033 FILE *debugf; |
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2034 nfa_state_T *state; |
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2035 garray_T *indent; |
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2036 { |
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2037 char_u *p; |
4444 | 2038 |
2039 if (state == NULL) | |
2040 return; | |
2041 | |
2042 fprintf(debugf, "(%2d)", abs(state->id)); | |
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2043 |
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2044 /* Output indent */ |
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2045 p = (char_u *)indent->ga_data; |
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2046 if (indent->ga_len >= 3) |
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2047 { |
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2048 int last = indent->ga_len - 3; |
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2049 char_u save[2]; |
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2050 |
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2051 STRNCPY(save, &p[last], 2); |
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2052 STRNCPY(&p[last], "+-", 2); |
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2053 fprintf(debugf, " %s", p); |
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2054 STRNCPY(&p[last], save, 2); |
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2055 } |
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2056 else |
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2057 fprintf(debugf, " %s", p); |
4444 | 2058 |
2059 nfa_set_code(state->c); | |
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2060 fprintf(debugf, "%s%s (%d) (id=%d)\n", |
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2061 state->negated ? "NOT " : "", code, state->c, abs(state->id)); |
4444 | 2062 if (state->id < 0) |
2063 return; | |
2064 | |
2065 state->id = abs(state->id) * -1; | |
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2066 |
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2067 /* grow indent for state->out */ |
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2068 indent->ga_len -= 1; |
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2069 if (state->out1) |
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2070 ga_concat(indent, (char_u *)"| "); |
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2071 else |
4537
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2072 ga_concat(indent, (char_u *)" "); |
4533
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2073 ga_append(indent, '\0'); |
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2074 |
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2075 nfa_print_state2(debugf, state->out, indent); |
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2076 |
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2077 /* replace last part of indent for state->out1 */ |
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2078 indent->ga_len -= 3; |
4537
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2079 ga_concat(indent, (char_u *)" "); |
4533
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2080 ga_append(indent, '\0'); |
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2081 |
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2082 nfa_print_state2(debugf, state->out1, indent); |
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2083 |
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2084 /* shrink indent */ |
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2085 indent->ga_len -= 3; |
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2086 ga_append(indent, '\0'); |
4444 | 2087 } |
2088 | |
2089 /* | |
2090 * Print the NFA state machine. | |
2091 */ | |
2092 static void | |
2093 nfa_dump(prog) | |
2094 nfa_regprog_T *prog; | |
2095 { | |
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2096 FILE *debugf = fopen(NFA_REGEXP_DUMP_LOG, "a"); |
4444 | 2097 |
2098 if (debugf != NULL) | |
2099 { | |
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2100 nfa_print_state(debugf, prog->start); |
4444 | 2101 fclose(debugf); |
2102 } | |
2103 } | |
2104 #endif /* ENABLE_LOG */ | |
2105 #endif /* DEBUG */ | |
2106 | |
2107 /* | |
2108 * Parse r.e. @expr and convert it into postfix form. | |
2109 * Return the postfix string on success, NULL otherwise. | |
2110 */ | |
2111 static int * | |
2112 re2post() | |
2113 { | |
2114 if (nfa_reg(REG_NOPAREN) == FAIL) | |
2115 return NULL; | |
2116 EMIT(NFA_MOPEN); | |
2117 return post_start; | |
2118 } | |
2119 | |
2120 /* NB. Some of the code below is inspired by Russ's. */ | |
2121 | |
2122 /* | |
2123 * Represents an NFA state plus zero or one or two arrows exiting. | |
2124 * if c == MATCH, no arrows out; matching state. | |
2125 * If c == SPLIT, unlabeled arrows to out and out1 (if != NULL). | |
2126 * If c < 256, labeled arrow with character c to out. | |
2127 */ | |
2128 | |
2129 static nfa_state_T *state_ptr; /* points to nfa_prog->state */ | |
2130 | |
2131 /* | |
2132 * Allocate and initialize nfa_state_T. | |
2133 */ | |
2134 static nfa_state_T * | |
2135 new_state(c, out, out1) | |
2136 int c; | |
2137 nfa_state_T *out; | |
2138 nfa_state_T *out1; | |
2139 { | |
2140 nfa_state_T *s; | |
2141 | |
2142 if (istate >= nstate) | |
2143 return NULL; | |
2144 | |
2145 s = &state_ptr[istate++]; | |
2146 | |
2147 s->c = c; | |
2148 s->out = out; | |
2149 s->out1 = out1; | |
2150 | |
2151 s->id = istate; | |
2152 s->lastlist = 0; | |
2153 s->negated = FALSE; | |
2154 | |
2155 return s; | |
2156 } | |
2157 | |
2158 /* | |
2159 * A partially built NFA without the matching state filled in. | |
2160 * Frag_T.start points at the start state. | |
2161 * Frag_T.out is a list of places that need to be set to the | |
2162 * next state for this fragment. | |
2163 */ | |
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2164 |
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2165 /* Since the out pointers in the list are always |
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2166 * uninitialized, we use the pointers themselves |
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2167 * as storage for the Ptrlists. */ |
4444 | 2168 typedef union Ptrlist Ptrlist; |
4555
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2169 union Ptrlist |
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2170 { |
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2171 Ptrlist *next; |
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2172 nfa_state_T *s; |
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2173 }; |
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2174 |
4444 | 2175 struct Frag |
2176 { | |
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2177 nfa_state_T *start; |
4444 | 2178 Ptrlist *out; |
2179 }; | |
2180 typedef struct Frag Frag_T; | |
2181 | |
2182 static Frag_T frag __ARGS((nfa_state_T *start, Ptrlist *out)); | |
2183 static Ptrlist *list1 __ARGS((nfa_state_T **outp)); | |
2184 static void patch __ARGS((Ptrlist *l, nfa_state_T *s)); | |
2185 static Ptrlist *append __ARGS((Ptrlist *l1, Ptrlist *l2)); | |
2186 static void st_push __ARGS((Frag_T s, Frag_T **p, Frag_T *stack_end)); | |
2187 static Frag_T st_pop __ARGS((Frag_T **p, Frag_T *stack)); | |
2188 | |
2189 /* | |
4456 | 2190 * Initialize a Frag_T struct and return it. |
4444 | 2191 */ |
2192 static Frag_T | |
2193 frag(start, out) | |
2194 nfa_state_T *start; | |
2195 Ptrlist *out; | |
2196 { | |
4456 | 2197 Frag_T n; |
2198 | |
2199 n.start = start; | |
2200 n.out = out; | |
4444 | 2201 return n; |
2202 } | |
2203 | |
2204 /* | |
2205 * Create singleton list containing just outp. | |
2206 */ | |
2207 static Ptrlist * | |
2208 list1(outp) | |
2209 nfa_state_T **outp; | |
2210 { | |
2211 Ptrlist *l; | |
2212 | |
2213 l = (Ptrlist *)outp; | |
2214 l->next = NULL; | |
2215 return l; | |
2216 } | |
2217 | |
2218 /* | |
2219 * Patch the list of states at out to point to start. | |
2220 */ | |
2221 static void | |
2222 patch(l, s) | |
2223 Ptrlist *l; | |
2224 nfa_state_T *s; | |
2225 { | |
2226 Ptrlist *next; | |
2227 | |
2228 for (; l; l = next) | |
2229 { | |
2230 next = l->next; | |
2231 l->s = s; | |
2232 } | |
2233 } | |
2234 | |
2235 | |
2236 /* | |
2237 * Join the two lists l1 and l2, returning the combination. | |
2238 */ | |
2239 static Ptrlist * | |
2240 append(l1, l2) | |
2241 Ptrlist *l1; | |
2242 Ptrlist *l2; | |
2243 { | |
2244 Ptrlist *oldl1; | |
2245 | |
2246 oldl1 = l1; | |
2247 while (l1->next) | |
2248 l1 = l1->next; | |
2249 l1->next = l2; | |
2250 return oldl1; | |
2251 } | |
2252 | |
2253 /* | |
2254 * Stack used for transforming postfix form into NFA. | |
2255 */ | |
2256 static Frag_T empty; | |
2257 | |
2258 static void | |
2259 st_error(postfix, end, p) | |
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2260 int *postfix UNUSED; |
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2261 int *end UNUSED; |
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2262 int *p UNUSED; |
4444 | 2263 { |
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2264 #ifdef NFA_REGEXP_ERROR_LOG |
4444 | 2265 FILE *df; |
2266 int *p2; | |
2267 | |
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2268 df = fopen(NFA_REGEXP_ERROR_LOG, "a"); |
4444 | 2269 if (df) |
2270 { | |
2271 fprintf(df, "Error popping the stack!\n"); | |
2272 #ifdef DEBUG | |
2273 fprintf(df, "Current regexp is \"%s\"\n", nfa_regengine.expr); | |
2274 #endif | |
2275 fprintf(df, "Postfix form is: "); | |
2276 #ifdef DEBUG | |
2277 for (p2 = postfix; p2 < end; p2++) | |
2278 { | |
2279 nfa_set_code(*p2); | |
2280 fprintf(df, "%s, ", code); | |
2281 } | |
2282 nfa_set_code(*p); | |
2283 fprintf(df, "\nCurrent position is: "); | |
2284 for (p2 = postfix; p2 <= p; p2 ++) | |
2285 { | |
2286 nfa_set_code(*p2); | |
2287 fprintf(df, "%s, ", code); | |
2288 } | |
2289 #else | |
2290 for (p2 = postfix; p2 < end; p2++) | |
2291 { | |
2292 fprintf(df, "%d, ", *p2); | |
2293 } | |
2294 fprintf(df, "\nCurrent position is: "); | |
2295 for (p2 = postfix; p2 <= p; p2 ++) | |
2296 { | |
2297 fprintf(df, "%d, ", *p2); | |
2298 } | |
2299 #endif | |
2300 fprintf(df, "\n--------------------------\n"); | |
2301 fclose(df); | |
2302 } | |
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2303 #endif |
4444 | 2304 EMSG(_("E874: (NFA) Could not pop the stack !")); |
2305 } | |
2306 | |
2307 /* | |
2308 * Push an item onto the stack. | |
2309 */ | |
2310 static void | |
2311 st_push(s, p, stack_end) | |
2312 Frag_T s; | |
2313 Frag_T **p; | |
2314 Frag_T *stack_end; | |
2315 { | |
2316 Frag_T *stackp = *p; | |
2317 | |
2318 if (stackp >= stack_end) | |
2319 return; | |
2320 *stackp = s; | |
2321 *p = *p + 1; | |
2322 } | |
2323 | |
2324 /* | |
2325 * Pop an item from the stack. | |
2326 */ | |
2327 static Frag_T | |
2328 st_pop(p, stack) | |
2329 Frag_T **p; | |
2330 Frag_T *stack; | |
2331 { | |
2332 Frag_T *stackp; | |
2333 | |
2334 *p = *p - 1; | |
2335 stackp = *p; | |
2336 if (stackp < stack) | |
2337 return empty; | |
2338 return **p; | |
2339 } | |
2340 | |
2341 /* | |
2342 * Convert a postfix form into its equivalent NFA. | |
2343 * Return the NFA start state on success, NULL otherwise. | |
2344 */ | |
2345 static nfa_state_T * | |
2346 post2nfa(postfix, end, nfa_calc_size) | |
2347 int *postfix; | |
2348 int *end; | |
2349 int nfa_calc_size; | |
2350 { | |
2351 int *p; | |
2352 int mopen; | |
2353 int mclose; | |
2354 Frag_T *stack = NULL; | |
2355 Frag_T *stackp = NULL; | |
2356 Frag_T *stack_end = NULL; | |
2357 Frag_T e1; | |
2358 Frag_T e2; | |
2359 Frag_T e; | |
2360 nfa_state_T *s; | |
2361 nfa_state_T *s1; | |
2362 nfa_state_T *matchstate; | |
4484 | 2363 nfa_state_T *ret = NULL; |
4444 | 2364 |
2365 if (postfix == NULL) | |
2366 return NULL; | |
2367 | |
4456 | 2368 #define PUSH(s) st_push((s), &stackp, stack_end) |
4444 | 2369 #define POP() st_pop(&stackp, stack); \ |
2370 if (stackp < stack) \ | |
2371 { \ | |
2372 st_error(postfix, end, p); \ | |
2373 return NULL; \ | |
2374 } | |
2375 | |
2376 if (nfa_calc_size == FALSE) | |
2377 { | |
2378 /* Allocate space for the stack. Max states on the stack : nstate */ | |
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2379 stack = (Frag_T *)lalloc((nstate + 1) * sizeof(Frag_T), TRUE); |
4444 | 2380 stackp = stack; |
4462 | 2381 stack_end = stack + (nstate + 1); |
4444 | 2382 } |
2383 | |
2384 for (p = postfix; p < end; ++p) | |
2385 { | |
2386 switch (*p) | |
2387 { | |
2388 case NFA_CONCAT: | |
2389 /* Catenation. | |
2390 * Pay attention: this operator does not exist | |
2391 * in the r.e. itself (it is implicit, really). | |
2392 * It is added when r.e. is translated to postfix | |
2393 * form in re2post(). | |
2394 * | |
2395 * No new state added here. */ | |
2396 if (nfa_calc_size == TRUE) | |
2397 { | |
4458 | 2398 /* nstate += 0; */ |
4444 | 2399 break; |
2400 } | |
2401 e2 = POP(); | |
2402 e1 = POP(); | |
2403 patch(e1.out, e2.start); | |
2404 PUSH(frag(e1.start, e2.out)); | |
2405 break; | |
2406 | |
2407 case NFA_NOT: | |
2408 /* Negation of a character */ | |
2409 if (nfa_calc_size == TRUE) | |
2410 { | |
4458 | 2411 /* nstate += 0; */ |
4444 | 2412 break; |
2413 } | |
2414 e1 = POP(); | |
2415 e1.start->negated = TRUE; | |
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2416 #ifdef FEAT_MBYTE |
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2417 if (e1.start->c == NFA_COMPOSING) |
4444 | 2418 e1.start->out1->negated = TRUE; |
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2419 #endif |
4444 | 2420 PUSH(e1); |
2421 break; | |
2422 | |
2423 case NFA_OR: | |
2424 /* Alternation */ | |
2425 if (nfa_calc_size == TRUE) | |
2426 { | |
4458 | 2427 nstate++; |
4444 | 2428 break; |
2429 } | |
2430 e2 = POP(); | |
2431 e1 = POP(); | |
2432 s = new_state(NFA_SPLIT, e1.start, e2.start); | |
2433 if (s == NULL) | |
4484 | 2434 goto theend; |
4444 | 2435 PUSH(frag(s, append(e1.out, e2.out))); |
2436 break; | |
2437 | |
2438 case NFA_STAR: | |
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2439 /* Zero or more, prefer more */ |
4444 | 2440 if (nfa_calc_size == TRUE) |
2441 { | |
4458 | 2442 nstate++; |
4444 | 2443 break; |
2444 } | |
2445 e = POP(); | |
2446 s = new_state(NFA_SPLIT, e.start, NULL); | |
2447 if (s == NULL) | |
4484 | 2448 goto theend; |
4444 | 2449 patch(e.out, s); |
2450 PUSH(frag(s, list1(&s->out1))); | |
2451 break; | |
2452 | |
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2453 case NFA_STAR_NONGREEDY: |
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2454 /* Zero or more, prefer zero */ |
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2455 if (nfa_calc_size == TRUE) |
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2456 { |
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2457 nstate++; |
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2458 break; |
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2459 } |
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2460 e = POP(); |
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2461 s = new_state(NFA_SPLIT, NULL, e.start); |
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2462 if (s == NULL) |
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2463 goto theend; |
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2464 patch(e.out, s); |
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2465 PUSH(frag(s, list1(&s->out))); |
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2466 break; |
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2467 |
4444 | 2468 case NFA_QUEST: |
2469 /* one or zero atoms=> greedy match */ | |
2470 if (nfa_calc_size == TRUE) | |
2471 { | |
4458 | 2472 nstate++; |
4444 | 2473 break; |
2474 } | |
2475 e = POP(); | |
2476 s = new_state(NFA_SPLIT, e.start, NULL); | |
2477 if (s == NULL) | |
4484 | 2478 goto theend; |
4444 | 2479 PUSH(frag(s, append(e.out, list1(&s->out1)))); |
2480 break; | |
2481 | |
2482 case NFA_QUEST_NONGREEDY: | |
2483 /* zero or one atoms => non-greedy match */ | |
2484 if (nfa_calc_size == TRUE) | |
2485 { | |
4458 | 2486 nstate++; |
4444 | 2487 break; |
2488 } | |
2489 e = POP(); | |
2490 s = new_state(NFA_SPLIT, NULL, e.start); | |
2491 if (s == NULL) | |
4484 | 2492 goto theend; |
4444 | 2493 PUSH(frag(s, append(e.out, list1(&s->out)))); |
2494 break; | |
2495 | |
2496 case NFA_SKIP_CHAR: | |
2497 /* Symbol of 0-length, Used in a repetition | |
2498 * with max/min count of 0 */ | |
2499 if (nfa_calc_size == TRUE) | |
2500 { | |
4458 | 2501 nstate++; |
4444 | 2502 break; |
2503 } | |
2504 s = new_state(NFA_SKIP_CHAR, NULL, NULL); | |
2505 if (s == NULL) | |
4484 | 2506 goto theend; |
4444 | 2507 PUSH(frag(s, list1(&s->out))); |
2508 break; | |
2509 | |
2510 case NFA_PREV_ATOM_NO_WIDTH: | |
4661
0dce3d812e7a
updated for version 7.3.1078
Bram Moolenaar <bram@vim.org>
parents:
4657
diff
changeset
|
2511 case NFA_PREV_ATOM_NO_WIDTH_NEG: |
4682
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
2512 case NFA_PREV_ATOM_JUST_BEFORE: |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
2513 case NFA_PREV_ATOM_JUST_BEFORE_NEG: |
4657
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
2514 /* 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
|
2515 * 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
|
2516 * The \@<= operator: match for the preceding atom. |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
2517 * The \@<! operator: no match for the preceding atom. |
4444 | 2518 * 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
|
2519 * END_INVISIBLE, similarly to MOPEN. */ |
4444 | 2520 |
2521 if (nfa_calc_size == TRUE) | |
2522 { | |
2523 nstate += 2; | |
2524 break; | |
2525 } | |
2526 e = POP(); | |
2527 s1 = new_state(NFA_END_INVISIBLE, NULL, NULL); | |
2528 if (s1 == NULL) | |
4484 | 2529 goto theend; |
4444 | 2530 patch(e.out, s1); |
2531 | |
2532 s = new_state(NFA_START_INVISIBLE, e.start, s1); | |
2533 if (s == NULL) | |
4484 | 2534 goto theend; |
4682
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
2535 if (*p == NFA_PREV_ATOM_NO_WIDTH_NEG |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
2536 || *p == NFA_PREV_ATOM_JUST_BEFORE_NEG) |
4661
0dce3d812e7a
updated for version 7.3.1078
Bram Moolenaar <bram@vim.org>
parents:
4657
diff
changeset
|
2537 { |
0dce3d812e7a
updated for version 7.3.1078
Bram Moolenaar <bram@vim.org>
parents:
4657
diff
changeset
|
2538 s->negated = TRUE; |
0dce3d812e7a
updated for version 7.3.1078
Bram Moolenaar <bram@vim.org>
parents:
4657
diff
changeset
|
2539 s1->negated = TRUE; |
0dce3d812e7a
updated for version 7.3.1078
Bram Moolenaar <bram@vim.org>
parents:
4657
diff
changeset
|
2540 } |
4682
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
2541 if (*p == NFA_PREV_ATOM_JUST_BEFORE |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
2542 || *p == NFA_PREV_ATOM_JUST_BEFORE_NEG) |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
2543 { |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
2544 s->val = *++p; /* get the count */ |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
2545 ++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
|
2546 } |
4661
0dce3d812e7a
updated for version 7.3.1078
Bram Moolenaar <bram@vim.org>
parents:
4657
diff
changeset
|
2547 |
4444 | 2548 PUSH(frag(s, list1(&s1->out))); |
2549 break; | |
2550 | |
4531
1be43c095aff
updated for version 7.3.1013
Bram Moolenaar <bram@vim.org>
parents:
4529
diff
changeset
|
2551 #ifdef FEAT_MBYTE |
4527
55bcaa1d2749
updated for version 7.3.1011
Bram Moolenaar <bram@vim.org>
parents:
4525
diff
changeset
|
2552 case NFA_COMPOSING: /* char with composing char */ |
55bcaa1d2749
updated for version 7.3.1011
Bram Moolenaar <bram@vim.org>
parents:
4525
diff
changeset
|
2553 #if 0 |
55bcaa1d2749
updated for version 7.3.1011
Bram Moolenaar <bram@vim.org>
parents:
4525
diff
changeset
|
2554 /* TODO */ |
55bcaa1d2749
updated for version 7.3.1011
Bram Moolenaar <bram@vim.org>
parents:
4525
diff
changeset
|
2555 if (regflags & RF_ICOMBINE) |
55bcaa1d2749
updated for version 7.3.1011
Bram Moolenaar <bram@vim.org>
parents:
4525
diff
changeset
|
2556 { |
4529
432a6b8c7d93
updated for version 7.3.1012
Bram Moolenaar <bram@vim.org>
parents:
4527
diff
changeset
|
2557 /* use the base character only */ |
4527
55bcaa1d2749
updated for version 7.3.1011
Bram Moolenaar <bram@vim.org>
parents:
4525
diff
changeset
|
2558 } |
55bcaa1d2749
updated for version 7.3.1011
Bram Moolenaar <bram@vim.org>
parents:
4525
diff
changeset
|
2559 #endif |
55bcaa1d2749
updated for version 7.3.1011
Bram Moolenaar <bram@vim.org>
parents:
4525
diff
changeset
|
2560 /* FALLTHROUGH */ |
4531
1be43c095aff
updated for version 7.3.1013
Bram Moolenaar <bram@vim.org>
parents:
4529
diff
changeset
|
2561 #endif |
4527
55bcaa1d2749
updated for version 7.3.1011
Bram Moolenaar <bram@vim.org>
parents:
4525
diff
changeset
|
2562 |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2563 case NFA_MOPEN: /* \( \) Submatch */ |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2564 case NFA_MOPEN1: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2565 case NFA_MOPEN2: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2566 case NFA_MOPEN3: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2567 case NFA_MOPEN4: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2568 case NFA_MOPEN5: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2569 case NFA_MOPEN6: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2570 case NFA_MOPEN7: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2571 case NFA_MOPEN8: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2572 case NFA_MOPEN9: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2573 #ifdef FEAT_SYN_HL |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2574 case NFA_ZOPEN: /* \z( \) Submatch */ |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2575 case NFA_ZOPEN1: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2576 case NFA_ZOPEN2: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2577 case NFA_ZOPEN3: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2578 case NFA_ZOPEN4: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2579 case NFA_ZOPEN5: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2580 case NFA_ZOPEN6: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2581 case NFA_ZOPEN7: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2582 case NFA_ZOPEN8: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2583 case NFA_ZOPEN9: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2584 #endif |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2585 case NFA_NOPEN: /* \%( \) "Invisible Submatch" */ |
4444 | 2586 if (nfa_calc_size == TRUE) |
2587 { | |
2588 nstate += 2; | |
2589 break; | |
2590 } | |
2591 | |
2592 mopen = *p; | |
2593 switch (*p) | |
2594 { | |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2595 case NFA_NOPEN: mclose = NFA_NCLOSE; break; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2596 #ifdef FEAT_SYN_HL |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2597 case NFA_ZOPEN: mclose = NFA_ZCLOSE; break; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2598 case NFA_ZOPEN1: mclose = NFA_ZCLOSE1; break; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2599 case NFA_ZOPEN2: mclose = NFA_ZCLOSE2; break; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2600 case NFA_ZOPEN3: mclose = NFA_ZCLOSE3; break; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2601 case NFA_ZOPEN4: mclose = NFA_ZCLOSE4; break; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2602 case NFA_ZOPEN5: mclose = NFA_ZCLOSE5; break; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2603 case NFA_ZOPEN6: mclose = NFA_ZCLOSE6; break; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2604 case NFA_ZOPEN7: mclose = NFA_ZCLOSE7; break; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2605 case NFA_ZOPEN8: mclose = NFA_ZCLOSE8; break; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2606 case NFA_ZOPEN9: mclose = NFA_ZCLOSE9; break; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2607 #endif |
4531
1be43c095aff
updated for version 7.3.1013
Bram Moolenaar <bram@vim.org>
parents:
4529
diff
changeset
|
2608 #ifdef FEAT_MBYTE |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2609 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
|
2610 #endif |
4444 | 2611 default: |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2612 /* NFA_MOPEN, NFA_MOPEN1 .. NFA_MOPEN9 */ |
4444 | 2613 mclose = *p + NSUBEXP; |
2614 break; | |
2615 } | |
2616 | |
2617 /* Allow "NFA_MOPEN" as a valid postfix representation for | |
2618 * the empty regexp "". In this case, the NFA will be | |
2619 * NFA_MOPEN -> NFA_MCLOSE. Note that this also allows | |
2620 * empty groups of parenthesis, and empty mbyte chars */ | |
2621 if (stackp == stack) | |
2622 { | |
2623 s = new_state(mopen, NULL, NULL); | |
2624 if (s == NULL) | |
4484 | 2625 goto theend; |
4444 | 2626 s1 = new_state(mclose, NULL, NULL); |
2627 if (s1 == NULL) | |
4484 | 2628 goto theend; |
4444 | 2629 patch(list1(&s->out), s1); |
2630 PUSH(frag(s, list1(&s1->out))); | |
2631 break; | |
2632 } | |
2633 | |
2634 /* At least one node was emitted before NFA_MOPEN, so | |
2635 * at least one node will be between NFA_MOPEN and NFA_MCLOSE */ | |
2636 e = POP(); | |
2637 s = new_state(mopen, e.start, NULL); /* `(' */ | |
2638 if (s == NULL) | |
4484 | 2639 goto theend; |
4444 | 2640 |
2641 s1 = new_state(mclose, NULL, NULL); /* `)' */ | |
2642 if (s1 == NULL) | |
4484 | 2643 goto theend; |
4444 | 2644 patch(e.out, s1); |
2645 | |
4531
1be43c095aff
updated for version 7.3.1013
Bram Moolenaar <bram@vim.org>
parents:
4529
diff
changeset
|
2646 #ifdef FEAT_MBYTE |
4527
55bcaa1d2749
updated for version 7.3.1011
Bram Moolenaar <bram@vim.org>
parents:
4525
diff
changeset
|
2647 if (mopen == NFA_COMPOSING) |
55bcaa1d2749
updated for version 7.3.1011
Bram Moolenaar <bram@vim.org>
parents:
4525
diff
changeset
|
2648 /* COMPOSING->out1 = END_COMPOSING */ |
4444 | 2649 patch(list1(&s->out1), s1); |
4531
1be43c095aff
updated for version 7.3.1013
Bram Moolenaar <bram@vim.org>
parents:
4529
diff
changeset
|
2650 #endif |
4444 | 2651 |
2652 PUSH(frag(s, list1(&s1->out))); | |
2653 break; | |
2654 | |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2655 case NFA_BACKREF1: |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2656 case NFA_BACKREF2: |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2657 case NFA_BACKREF3: |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2658 case NFA_BACKREF4: |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2659 case NFA_BACKREF5: |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2660 case NFA_BACKREF6: |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2661 case NFA_BACKREF7: |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2662 case NFA_BACKREF8: |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2663 case NFA_BACKREF9: |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2664 #ifdef FEAT_SYN_HL |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2665 case NFA_ZREF1: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2666 case NFA_ZREF2: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2667 case NFA_ZREF3: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2668 case NFA_ZREF4: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2669 case NFA_ZREF5: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2670 case NFA_ZREF6: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2671 case NFA_ZREF7: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2672 case NFA_ZREF8: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2673 case NFA_ZREF9: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2674 #endif |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2675 if (nfa_calc_size == TRUE) |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2676 { |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2677 nstate += 2; |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2678 break; |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2679 } |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2680 s = new_state(*p, NULL, NULL); |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2681 if (s == NULL) |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2682 goto theend; |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2683 s1 = new_state(NFA_SKIP, NULL, NULL); |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2684 if (s1 == NULL) |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2685 goto theend; |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2686 patch(list1(&s->out), s1); |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2687 PUSH(frag(s, list1(&s1->out))); |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2688 break; |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2689 |
4583
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
2690 case NFA_LNUM: |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
2691 case NFA_LNUM_GT: |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
2692 case NFA_LNUM_LT: |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
2693 case NFA_VCOL: |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
2694 case NFA_VCOL_GT: |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
2695 case NFA_VCOL_LT: |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
2696 case NFA_COL: |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
2697 case NFA_COL_GT: |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
2698 case NFA_COL_LT: |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
2699 if (nfa_calc_size == TRUE) |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
2700 { |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
2701 nstate += 1; |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
2702 break; |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
2703 } |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
2704 e1 = POP(); |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
2705 s = new_state(*p, NULL, NULL); |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
2706 if (s == NULL) |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
2707 goto theend; |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
2708 s->val = e1.start->c; |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
2709 PUSH(frag(s, list1(&s->out))); |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
2710 break; |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
2711 |
4444 | 2712 case NFA_ZSTART: |
2713 case NFA_ZEND: | |
2714 default: | |
2715 /* Operands */ | |
2716 if (nfa_calc_size == TRUE) | |
2717 { | |
4458 | 2718 nstate++; |
4444 | 2719 break; |
2720 } | |
2721 s = new_state(*p, NULL, NULL); | |
2722 if (s == NULL) | |
4484 | 2723 goto theend; |
4444 | 2724 PUSH(frag(s, list1(&s->out))); |
2725 break; | |
2726 | |
2727 } /* switch(*p) */ | |
2728 | |
2729 } /* for(p = postfix; *p; ++p) */ | |
2730 | |
2731 if (nfa_calc_size == TRUE) | |
2732 { | |
4458 | 2733 nstate++; |
4484 | 2734 goto theend; /* Return value when counting size is ignored anyway */ |
4444 | 2735 } |
2736 | |
2737 e = POP(); | |
2738 if (stackp != stack) | |
2739 EMSG_RET_NULL(_("E875: (NFA regexp) (While converting from postfix to NFA), too many states left on stack")); | |
2740 | |
2741 if (istate >= nstate) | |
2742 EMSG_RET_NULL(_("E876: (NFA regexp) Not enough space to store the whole NFA ")); | |
2743 | |
2744 matchstate = &state_ptr[istate++]; /* the match state */ | |
2745 matchstate->c = NFA_MATCH; | |
2746 matchstate->out = matchstate->out1 = NULL; | |
2747 | |
2748 patch(e.out, matchstate); | |
4484 | 2749 ret = e.start; |
2750 | |
2751 theend: | |
2752 vim_free(stack); | |
2753 return ret; | |
4444 | 2754 |
2755 #undef POP1 | |
2756 #undef PUSH1 | |
2757 #undef POP2 | |
2758 #undef PUSH2 | |
2759 #undef POP | |
2760 #undef PUSH | |
2761 } | |
2762 | |
2763 /**************************************************************** | |
2764 * NFA execution code. | |
2765 ****************************************************************/ | |
2766 | |
4563
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
2767 typedef struct |
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
2768 { |
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
2769 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
|
2770 |
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
2771 /* 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
|
2772 union |
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
2773 { |
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
2774 struct multipos |
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 lpos_T start; |
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
2777 lpos_T end; |
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
2778 } multi[NSUBEXP]; |
4563
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
2779 struct linepos |
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
2780 { |
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
2781 char_u *start; |
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
2782 char_u *end; |
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
2783 } line[NSUBEXP]; |
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
2784 } list; |
4563
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
2785 } regsub_T; |
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
2786 |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2787 typedef struct |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2788 { |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2789 regsub_T norm; /* \( .. \) matches */ |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2790 #ifdef FEAT_SYN_HL |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2791 regsub_T synt; /* \z( .. \) matches */ |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2792 #endif |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2793 } regsubs_T; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2794 |
4561
4d81fdda8f35
updated for version 7.3.1028
Bram Moolenaar <bram@vim.org>
parents:
4559
diff
changeset
|
2795 /* 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
|
2796 typedef struct |
4444 | 2797 { |
2798 nfa_state_T *state; | |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2799 int count; |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2800 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
|
2801 } nfa_thread_T; |
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
2802 |
4561
4d81fdda8f35
updated for version 7.3.1028
Bram Moolenaar <bram@vim.org>
parents:
4559
diff
changeset
|
2803 /* nfa_list_T contains the alternative NFA execution states. */ |
4444 | 2804 typedef struct |
2805 { | |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2806 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
|
2807 int n; /* nr of states currently in "t" */ |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2808 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
|
2809 int id; /* ID of the list */ |
4539
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
2810 } nfa_list_T; |
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
2811 |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2812 #ifdef ENABLE_LOG |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2813 static void log_subsexpr __ARGS((regsubs_T *subs)); |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2814 static void log_subexpr __ARGS((regsub_T *sub)); |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2815 |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2816 static void |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2817 log_subsexpr(subs) |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2818 regsubs_T *subs; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2819 { |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2820 log_subexpr(&subs->norm); |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2821 # ifdef FEAT_SYN_HL |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2822 log_subexpr(&subs->synt); |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2823 # endif |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
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4682
diff
changeset
|
2824 } |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
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4682
diff
changeset
|
2825 |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2826 static void |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2827 log_subexpr(sub) |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2828 regsub_T *sub; |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2829 { |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2830 int j; |
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 for (j = 0; j < sub->in_use; j++) |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2833 if (REG_MULTI) |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
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4569
diff
changeset
|
2834 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
|
2835 j, |
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
2836 sub->list.multi[j].start.col, |
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
2837 (int)sub->list.multi[j].start.lnum, |
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
2838 sub->list.multi[j].end.col, |
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
2839 (int)sub->list.multi[j].end.lnum); |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
2840 else |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2841 fprintf(log_fd, "\n *** group %d, start: \"%s\", end: \"%s\"", |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
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4569
diff
changeset
|
2842 j, |
4577
b22bff1a6af8
updated for version 7.3.1036
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parents:
4573
diff
changeset
|
2843 (char *)sub->list.line[j].start, |
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
2844 (char *)sub->list.line[j].end); |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2845 fprintf(log_fd, "\n"); |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2846 } |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2847 #endif |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2848 |
4561
4d81fdda8f35
updated for version 7.3.1028
Bram Moolenaar <bram@vim.org>
parents:
4559
diff
changeset
|
2849 /* 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
|
2850 static int nfa_match; |
4d81fdda8f35
updated for version 7.3.1028
Bram Moolenaar <bram@vim.org>
parents:
4559
diff
changeset
|
2851 |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2852 static void clear_sub __ARGS((regsub_T *sub)); |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2853 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
|
2854 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
|
2855 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
|
2856 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
|
2857 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
|
2858 |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2859 static void |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2860 clear_sub(sub) |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2861 regsub_T *sub; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2862 { |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2863 if (REG_MULTI) |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2864 /* Use 0xff to set lnum to -1 */ |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2865 vim_memset(sub->list.multi, 0xff, |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2866 sizeof(struct multipos) * nfa_nsubexpr); |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2867 else |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2868 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
|
2869 sub->in_use = 0; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2870 } |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2871 |
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 * Copy the submatches from "from" to "to". |
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 static void |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2876 copy_sub(to, from) |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2877 regsub_T *to; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2878 regsub_T *from; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2879 { |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2880 to->in_use = from->in_use; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2881 if (from->in_use > 0) |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2882 { |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2883 /* Copy the match start and end positions. */ |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2884 if (REG_MULTI) |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2885 mch_memmove(&to->list.multi[0], |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2886 &from->list.multi[0], |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2887 sizeof(struct multipos) * from->in_use); |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2888 else |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2889 mch_memmove(&to->list.line[0], |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2890 &from->list.line[0], |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2891 sizeof(struct linepos) * from->in_use); |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2892 } |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2893 } |
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 * Like copy_sub() but exclude the main match. |
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 static void |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2899 copy_sub_off(to, from) |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2900 regsub_T *to; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2901 regsub_T *from; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2902 { |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2903 if (to->in_use < from->in_use) |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2904 to->in_use = from->in_use; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2905 if (from->in_use > 1) |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2906 { |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2907 /* Copy the match start and end positions. */ |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2908 if (REG_MULTI) |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2909 mch_memmove(&to->list.multi[1], |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2910 &from->list.multi[1], |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2911 sizeof(struct multipos) * (from->in_use - 1)); |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2912 else |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2913 mch_memmove(&to->list.line[1], |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2914 &from->list.line[1], |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2915 sizeof(struct linepos) * (from->in_use - 1)); |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2916 } |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2917 } |
4444 | 2918 |
4647
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2919 /* |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2920 * 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
|
2921 */ |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2922 static int |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2923 sub_equal(sub1, sub2) |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2924 regsub_T *sub1; |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2925 regsub_T *sub2; |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2926 { |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2927 int i; |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2928 int todo; |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2929 linenr_T s1, e1; |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2930 linenr_T s2, e2; |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2931 char_u *sp1, *ep1; |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2932 char_u *sp2, *ep2; |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2933 |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2934 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
|
2935 if (REG_MULTI) |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2936 { |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2937 for (i = 0; i < todo; ++i) |
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 if (i < sub1->in_use) |
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 s1 = sub1->list.multi[i].start.lnum; |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2942 e1 = sub1->list.multi[i].end.lnum; |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2943 } |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2944 else |
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 s1 = 0; |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2947 e1 = 0; |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2948 } |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2949 if (i < sub2->in_use) |
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 s2 = sub2->list.multi[i].start.lnum; |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2952 e2 = sub2->list.multi[i].end.lnum; |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2953 } |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2954 else |
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 s2 = 0; |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2957 e2 = 0; |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2958 } |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2959 if (s1 != s2 || e1 != e2) |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2960 return FALSE; |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2961 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
|
2962 != sub2->list.multi[i].start.col) |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2963 return FALSE; |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2964 if (e1 != 0 && sub1->list.multi[i].end.col |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2965 != sub2->list.multi[i].end.col) |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2966 return FALSE; |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2967 } |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2968 } |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2969 else |
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 for (i = 0; i < todo; ++i) |
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 if (i < sub1->in_use) |
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 sp1 = sub1->list.line[i].start; |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2976 ep1 = sub1->list.line[i].end; |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2977 } |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2978 else |
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 sp1 = NULL; |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2981 ep1 = NULL; |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2982 } |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2983 if (i < sub2->in_use) |
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 sp2 = sub2->list.line[i].start; |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2986 ep2 = sub2->list.line[i].end; |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2987 } |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2988 else |
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 sp2 = NULL; |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2991 ep2 = NULL; |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2992 } |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2993 if (sp1 != sp2 || ep1 != ep2) |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2994 return FALSE; |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2995 } |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2996 } |
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 return TRUE; |
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 |
4444 | 3001 static void |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3002 addstate(l, state, subs, off) |
4539
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3003 nfa_list_T *l; /* runtime state list */ |
4444 | 3004 nfa_state_T *state; /* state to update */ |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3005 regsubs_T *subs; /* pointers to subexpressions */ |
4515
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
3006 int off; /* byte offset, when -1 go to next line */ |
4444 | 3007 { |
4561
4d81fdda8f35
updated for version 7.3.1028
Bram Moolenaar <bram@vim.org>
parents:
4559
diff
changeset
|
3008 int subidx; |
4647
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3009 nfa_thread_T *thread; |
4561
4d81fdda8f35
updated for version 7.3.1028
Bram Moolenaar <bram@vim.org>
parents:
4559
diff
changeset
|
3010 lpos_T save_lpos; |
4563
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3011 int save_in_use; |
4561
4d81fdda8f35
updated for version 7.3.1028
Bram Moolenaar <bram@vim.org>
parents:
4559
diff
changeset
|
3012 char_u *save_ptr; |
4563
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3013 int i; |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3014 regsub_T *sub; |
4657
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3015 #ifdef ENABLE_LOG |
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3016 int did_print = FALSE; |
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3017 #endif |
4444 | 3018 |
3019 if (l == NULL || state == NULL) | |
3020 return; | |
3021 | |
3022 switch (state->c) | |
3023 { | |
3024 case NFA_SPLIT: | |
3025 case NFA_NOT: | |
3026 case NFA_NOPEN: | |
3027 case NFA_NCLOSE: | |
3028 case NFA_MCLOSE: | |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3029 case NFA_MCLOSE1: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3030 case NFA_MCLOSE2: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3031 case NFA_MCLOSE3: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3032 case NFA_MCLOSE4: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3033 case NFA_MCLOSE5: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3034 case NFA_MCLOSE6: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3035 case NFA_MCLOSE7: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3036 case NFA_MCLOSE8: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3037 case NFA_MCLOSE9: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3038 #ifdef FEAT_SYN_HL |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3039 case NFA_ZCLOSE: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3040 case NFA_ZCLOSE1: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3041 case NFA_ZCLOSE2: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3042 case NFA_ZCLOSE3: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3043 case NFA_ZCLOSE4: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3044 case NFA_ZCLOSE5: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3045 case NFA_ZCLOSE6: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3046 case NFA_ZCLOSE7: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3047 case NFA_ZCLOSE8: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3048 case NFA_ZCLOSE9: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3049 #endif |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3050 /* 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
|
3051 * "out1" may be added below. */ |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3052 break; |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3053 |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3054 case NFA_MOPEN: |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3055 case NFA_MOPEN1: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3056 case NFA_MOPEN2: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3057 case NFA_MOPEN3: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3058 case NFA_MOPEN4: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3059 case NFA_MOPEN5: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3060 case NFA_MOPEN6: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3061 case NFA_MOPEN7: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3062 case NFA_MOPEN8: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3063 case NFA_MOPEN9: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3064 #ifdef FEAT_SYN_HL |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3065 case NFA_ZOPEN: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3066 case NFA_ZOPEN1: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3067 case NFA_ZOPEN2: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3068 case NFA_ZOPEN3: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3069 case NFA_ZOPEN4: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3070 case NFA_ZOPEN5: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3071 case NFA_ZOPEN6: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3072 case NFA_ZOPEN7: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3073 case NFA_ZOPEN8: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3074 case NFA_ZOPEN9: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3075 #endif |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3076 /* 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
|
3077 * 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
|
3078 if (state->lastlist == l->id) |
4657
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3079 goto skip_add; |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3080 state->lastlist = l->id; |
4444 | 3081 break; |
3082 | |
3083 default: | |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3084 if (state->lastlist == l->id) |
4444 | 3085 { |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3086 /* 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
|
3087 * 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
|
3088 if (!nfa_has_backref) |
4657
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3089 { |
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3090 skip_add: |
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3091 #ifdef ENABLE_LOG |
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3092 nfa_set_code(state->c); |
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3093 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
|
3094 abs(state->id), l->id, state->c, code); |
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3095 #endif |
4647
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3096 return; |
4657
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3097 } |
4647
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3098 |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3099 /* 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
|
3100 * positions. */ |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3101 for (i = 0; i < l->n; ++i) |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3102 { |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3103 thread = &l->t[i]; |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3104 if (thread->state->id == state->id |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3105 && sub_equal(&thread->subs.norm, &subs->norm) |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3106 #ifdef FEAT_SYN_HL |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3107 && sub_equal(&thread->subs.synt, &subs->synt) |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3108 #endif |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3109 ) |
4657
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3110 goto skip_add; |
4647
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3111 } |
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 |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3114 /* 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
|
3115 * lot) bigger */ |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3116 if (nfa_has_backref && l->n == l->len) |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3117 { |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3118 int newlen = l->len * 3 / 2 + 50; |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3119 |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3120 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
|
3121 l->len = newlen; |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3122 } |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3123 |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3124 /* add the state to the list */ |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3125 state->lastlist = l->id; |
4647
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3126 thread = &l->t[l->n++]; |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3127 thread->state = state; |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3128 copy_sub(&thread->subs.norm, &subs->norm); |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3129 #ifdef FEAT_SYN_HL |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3130 copy_sub(&thread->subs.synt, &subs->synt); |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3131 #endif |
4657
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3132 #ifdef ENABLE_LOG |
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3133 { |
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3134 int col; |
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3135 |
4690
9d97a0c045ef
updated for version 7.3.1092
Bram Moolenaar <bram@vim.org>
parents:
4688
diff
changeset
|
3136 if (thread->subs.norm.in_use <= 0) |
4657
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3137 col = -1; |
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3138 else if (REG_MULTI) |
4690
9d97a0c045ef
updated for version 7.3.1092
Bram Moolenaar <bram@vim.org>
parents:
4688
diff
changeset
|
3139 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
|
3140 else |
4690
9d97a0c045ef
updated for version 7.3.1092
Bram Moolenaar <bram@vim.org>
parents:
4688
diff
changeset
|
3141 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
|
3142 nfa_set_code(state->c); |
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3143 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
|
3144 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
|
3145 did_print = TRUE; |
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3146 } |
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3147 #endif |
4444 | 3148 } |
3149 | |
3150 #ifdef ENABLE_LOG | |
4657
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3151 if (!did_print) |
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3152 { |
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3153 int col; |
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3154 |
4690
9d97a0c045ef
updated for version 7.3.1092
Bram Moolenaar <bram@vim.org>
parents:
4688
diff
changeset
|
3155 if (subs->norm.in_use <= 0) |
4657
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3156 col = -1; |
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3157 else if (REG_MULTI) |
4690
9d97a0c045ef
updated for version 7.3.1092
Bram Moolenaar <bram@vim.org>
parents:
4688
diff
changeset
|
3158 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
|
3159 else |
4690
9d97a0c045ef
updated for version 7.3.1092
Bram Moolenaar <bram@vim.org>
parents:
4688
diff
changeset
|
3160 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
|
3161 nfa_set_code(state->c); |
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3162 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
|
3163 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
|
3164 } |
4444 | 3165 #endif |
3166 switch (state->c) | |
3167 { | |
3168 case NFA_MATCH: | |
4561
4d81fdda8f35
updated for version 7.3.1028
Bram Moolenaar <bram@vim.org>
parents:
4559
diff
changeset
|
3169 nfa_match = TRUE; |
4444 | 3170 break; |
3171 | |
3172 case NFA_SPLIT: | |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3173 /* order matters here */ |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3174 addstate(l, state->out, subs, off); |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3175 addstate(l, state->out1, subs, off); |
4444 | 3176 break; |
3177 | |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3178 case NFA_SKIP_CHAR: |
4444 | 3179 case NFA_NOPEN: |
3180 case NFA_NCLOSE: | |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3181 addstate(l, state->out, subs, off); |
4444 | 3182 break; |
3183 | |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3184 case NFA_MOPEN: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3185 case NFA_MOPEN1: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3186 case NFA_MOPEN2: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3187 case NFA_MOPEN3: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3188 case NFA_MOPEN4: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3189 case NFA_MOPEN5: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3190 case NFA_MOPEN6: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3191 case NFA_MOPEN7: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3192 case NFA_MOPEN8: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3193 case NFA_MOPEN9: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3194 #ifdef FEAT_SYN_HL |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3195 case NFA_ZOPEN: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3196 case NFA_ZOPEN1: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3197 case NFA_ZOPEN2: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3198 case NFA_ZOPEN3: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3199 case NFA_ZOPEN4: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3200 case NFA_ZOPEN5: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3201 case NFA_ZOPEN6: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3202 case NFA_ZOPEN7: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3203 case NFA_ZOPEN8: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3204 case NFA_ZOPEN9: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3205 #endif |
4444 | 3206 case NFA_ZSTART: |
3207 if (state->c == NFA_ZSTART) | |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3208 { |
4444 | 3209 subidx = 0; |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3210 sub = &subs->norm; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3211 } |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3212 #ifdef FEAT_SYN_HL |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3213 else if (state->c >= NFA_ZOPEN) |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3214 { |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3215 subidx = state->c - NFA_ZOPEN; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3216 sub = &subs->synt; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3217 } |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3218 #endif |
4561
4d81fdda8f35
updated for version 7.3.1028
Bram Moolenaar <bram@vim.org>
parents:
4559
diff
changeset
|
3219 else |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3220 { |
4561
4d81fdda8f35
updated for version 7.3.1028
Bram Moolenaar <bram@vim.org>
parents:
4559
diff
changeset
|
3221 subidx = state->c - NFA_MOPEN; |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3222 sub = &subs->norm; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3223 } |
4444 | 3224 |
4563
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3225 /* 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
|
3226 * 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
|
3227 save_ptr = NULL; |
4444 | 3228 if (REG_MULTI) |
3229 { | |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3230 if (subidx < sub->in_use) |
4563
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3231 { |
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3232 save_lpos = sub->list.multi[subidx].start; |
4563
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3233 save_in_use = -1; |
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3234 } |
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3235 else |
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3236 { |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3237 save_in_use = sub->in_use; |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3238 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
|
3239 { |
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3240 sub->list.multi[i].start.lnum = -1; |
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3241 sub->list.multi[i].end.lnum = -1; |
4563
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3242 } |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3243 sub->in_use = subidx + 1; |
4563
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3244 } |
4515
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
3245 if (off == -1) |
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
3246 { |
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3247 sub->list.multi[subidx].start.lnum = reglnum + 1; |
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3248 sub->list.multi[subidx].start.col = 0; |
4515
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
3249 } |
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
3250 else |
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
3251 { |
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3252 sub->list.multi[subidx].start.lnum = reglnum; |
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3253 sub->list.multi[subidx].start.col = |
4515
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
3254 (colnr_T)(reginput - regline + off); |
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
3255 } |
4444 | 3256 } |
3257 else | |
3258 { | |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3259 if (subidx < sub->in_use) |
4563
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3260 { |
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3261 save_ptr = sub->list.line[subidx].start; |
4563
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3262 save_in_use = -1; |
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3263 } |
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3264 else |
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3265 { |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3266 save_in_use = sub->in_use; |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3267 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
|
3268 { |
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3269 sub->list.line[i].start = NULL; |
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3270 sub->list.line[i].end = NULL; |
4563
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3271 } |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3272 sub->in_use = subidx + 1; |
4563
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3273 } |
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3274 sub->list.line[subidx].start = reginput + off; |
4444 | 3275 } |
3276 | |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3277 addstate(l, state->out, subs, off); |
4444 | 3278 |
4563
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3279 if (save_in_use == -1) |
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3280 { |
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3281 if (REG_MULTI) |
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3282 sub->list.multi[subidx].start = save_lpos; |
4563
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3283 else |
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3284 sub->list.line[subidx].start = save_ptr; |
4563
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3285 } |
4444 | 3286 else |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3287 sub->in_use = save_in_use; |
4444 | 3288 break; |
3289 | |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3290 case NFA_MCLOSE: |
4553
7b835b2969af
updated for version 7.3.1024
Bram Moolenaar <bram@vim.org>
parents:
4551
diff
changeset
|
3291 if (nfa_has_zend) |
4444 | 3292 { |
4569
f262fb02889d
updated for version 7.3.1032
Bram Moolenaar <bram@vim.org>
parents:
4567
diff
changeset
|
3293 /* 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
|
3294 * 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
|
3295 addstate(l, state->out, subs, off); |
4444 | 3296 break; |
3297 } | |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3298 case NFA_MCLOSE1: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3299 case NFA_MCLOSE2: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3300 case NFA_MCLOSE3: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3301 case NFA_MCLOSE4: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3302 case NFA_MCLOSE5: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3303 case NFA_MCLOSE6: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3304 case NFA_MCLOSE7: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3305 case NFA_MCLOSE8: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3306 case NFA_MCLOSE9: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3307 #ifdef FEAT_SYN_HL |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3308 case NFA_ZCLOSE: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3309 case NFA_ZCLOSE1: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3310 case NFA_ZCLOSE2: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3311 case NFA_ZCLOSE3: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3312 case NFA_ZCLOSE4: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3313 case NFA_ZCLOSE5: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3314 case NFA_ZCLOSE6: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3315 case NFA_ZCLOSE7: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3316 case NFA_ZCLOSE8: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3317 case NFA_ZCLOSE9: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3318 #endif |
4444 | 3319 case NFA_ZEND: |
3320 if (state->c == NFA_ZEND) | |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3321 { |
4444 | 3322 subidx = 0; |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3323 sub = &subs->norm; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3324 } |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3325 #ifdef FEAT_SYN_HL |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3326 else if (state->c >= NFA_ZCLOSE) |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3327 { |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3328 subidx = state->c - NFA_ZCLOSE; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3329 sub = &subs->synt; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3330 } |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3331 #endif |
4561
4d81fdda8f35
updated for version 7.3.1028
Bram Moolenaar <bram@vim.org>
parents:
4559
diff
changeset
|
3332 else |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3333 { |
4561
4d81fdda8f35
updated for version 7.3.1028
Bram Moolenaar <bram@vim.org>
parents:
4559
diff
changeset
|
3334 subidx = state->c - NFA_MCLOSE; |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3335 sub = &subs->norm; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3336 } |
4444 | 3337 |
4563
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3338 /* 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
|
3339 * has done that. */ |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3340 save_in_use = sub->in_use; |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3341 if (sub->in_use <= subidx) |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3342 sub->in_use = subidx + 1; |
4444 | 3343 if (REG_MULTI) |
3344 { | |
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3345 save_lpos = sub->list.multi[subidx].end; |
4515
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
3346 if (off == -1) |
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
3347 { |
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3348 sub->list.multi[subidx].end.lnum = reglnum + 1; |
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3349 sub->list.multi[subidx].end.col = 0; |
4515
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
3350 } |
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
3351 else |
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
3352 { |
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3353 sub->list.multi[subidx].end.lnum = reglnum; |
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3354 sub->list.multi[subidx].end.col = |
4561
4d81fdda8f35
updated for version 7.3.1028
Bram Moolenaar <bram@vim.org>
parents:
4559
diff
changeset
|
3355 (colnr_T)(reginput - regline + off); |
4515
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
3356 } |
4444 | 3357 } |
3358 else | |
3359 { | |
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3360 save_ptr = sub->list.line[subidx].end; |
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3361 sub->list.line[subidx].end = reginput + off; |
4444 | 3362 } |
3363 | |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3364 addstate(l, state->out, subs, off); |
4444 | 3365 |
3366 if (REG_MULTI) | |
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3367 sub->list.multi[subidx].end = save_lpos; |
4444 | 3368 else |
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3369 sub->list.line[subidx].end = save_ptr; |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3370 sub->in_use = save_in_use; |
4444 | 3371 break; |
3372 } | |
3373 } | |
3374 | |
3375 /* | |
4539
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3376 * 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
|
3377 * 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
|
3378 * 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
|
3379 * matters for alternatives. |
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3380 */ |
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3381 static void |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3382 addstate_here(l, state, subs, ip) |
4539
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3383 nfa_list_T *l; /* runtime state list */ |
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3384 nfa_state_T *state; /* state to update */ |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3385 regsubs_T *subs; /* pointers to subexpressions */ |
4539
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3386 int *ip; |
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3387 { |
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3388 int tlen = l->n; |
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3389 int count; |
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3390 int i = *ip; |
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3391 |
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3392 /* 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
|
3393 addstate(l, state, subs, 0); |
4539
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 /* 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
|
3396 if (i + 1 == tlen) |
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3397 return; |
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3398 |
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3399 /* 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
|
3400 count = l->n - tlen; |
4647
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3401 if (count == 1) |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3402 { |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3403 /* overwrite the current state */ |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3404 l->t[i] = l->t[l->n - 1]; |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3405 } |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3406 else if (count > 1) |
4539
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3407 { |
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3408 /* 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
|
3409 * end to the current position */ |
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3410 mch_memmove(&(l->t[i + count]), |
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3411 &(l->t[i + 1]), |
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3412 sizeof(nfa_thread_T) * (l->n - i - 1)); |
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3413 mch_memmove(&(l->t[i]), |
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3414 &(l->t[l->n - 1]), |
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3415 sizeof(nfa_thread_T) * count); |
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3416 } |
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3417 --l->n; |
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3418 *ip = i - 1; |
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3419 } |
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3420 |
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3421 /* |
4444 | 3422 * Check character class "class" against current character c. |
3423 */ | |
3424 static int | |
3425 check_char_class(class, c) | |
3426 int class; | |
3427 int c; | |
3428 { | |
3429 switch (class) | |
3430 { | |
3431 case NFA_CLASS_ALNUM: | |
4464 | 3432 if (c >= 1 && c <= 255 && isalnum(c)) |
4444 | 3433 return OK; |
3434 break; | |
3435 case NFA_CLASS_ALPHA: | |
4464 | 3436 if (c >= 1 && c <= 255 && isalpha(c)) |
4444 | 3437 return OK; |
3438 break; | |
3439 case NFA_CLASS_BLANK: | |
3440 if (c == ' ' || c == '\t') | |
3441 return OK; | |
3442 break; | |
3443 case NFA_CLASS_CNTRL: | |
4464 | 3444 if (c >= 1 && c <= 255 && iscntrl(c)) |
4444 | 3445 return OK; |
3446 break; | |
3447 case NFA_CLASS_DIGIT: | |
3448 if (VIM_ISDIGIT(c)) | |
3449 return OK; | |
3450 break; | |
3451 case NFA_CLASS_GRAPH: | |
4464 | 3452 if (c >= 1 && c <= 255 && isgraph(c)) |
4444 | 3453 return OK; |
3454 break; | |
3455 case NFA_CLASS_LOWER: | |
3456 if (MB_ISLOWER(c)) | |
3457 return OK; | |
3458 break; | |
3459 case NFA_CLASS_PRINT: | |
3460 if (vim_isprintc(c)) | |
3461 return OK; | |
3462 break; | |
3463 case NFA_CLASS_PUNCT: | |
4464 | 3464 if (c >= 1 && c <= 255 && ispunct(c)) |
4444 | 3465 return OK; |
3466 break; | |
3467 case NFA_CLASS_SPACE: | |
3468 if ((c >=9 && c <= 13) || (c == ' ')) | |
3469 return OK; | |
3470 break; | |
3471 case NFA_CLASS_UPPER: | |
3472 if (MB_ISUPPER(c)) | |
3473 return OK; | |
3474 break; | |
3475 case NFA_CLASS_XDIGIT: | |
3476 if (vim_isxdigit(c)) | |
3477 return OK; | |
3478 break; | |
3479 case NFA_CLASS_TAB: | |
3480 if (c == '\t') | |
3481 return OK; | |
3482 break; | |
3483 case NFA_CLASS_RETURN: | |
3484 if (c == '\r') | |
3485 return OK; | |
3486 break; | |
3487 case NFA_CLASS_BACKSPACE: | |
3488 if (c == '\b') | |
3489 return OK; | |
3490 break; | |
3491 case NFA_CLASS_ESCAPE: | |
3492 if (c == '\033') | |
3493 return OK; | |
3494 break; | |
3495 | |
3496 default: | |
3497 /* should not be here :P */ | |
3498 EMSG_RET_FAIL(_("E877: (NFA regexp) Invalid character class ")); | |
3499 } | |
3500 return FAIL; | |
3501 } | |
3502 | |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3503 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
|
3504 |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3505 /* |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3506 * Check for a match with subexpression "subidx". |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3507 * Return TRUE if it matches. |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3508 */ |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3509 static int |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3510 match_backref(sub, subidx, bytelen) |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3511 regsub_T *sub; /* pointers to subexpressions */ |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3512 int subidx; |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3513 int *bytelen; /* out: length of match in bytes */ |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3514 { |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3515 int len; |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3516 |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3517 if (sub->in_use <= subidx) |
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 retempty: |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3520 /* backref was not set, match an empty string */ |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3521 *bytelen = 0; |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3522 return TRUE; |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3523 } |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3524 |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3525 if (REG_MULTI) |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3526 { |
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3527 if (sub->list.multi[subidx].start.lnum < 0 |
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3528 || sub->list.multi[subidx].end.lnum < 0) |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3529 goto retempty; |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3530 /* TODO: line breaks */ |
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3531 len = sub->list.multi[subidx].end.col |
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3532 - sub->list.multi[subidx].start.col; |
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3533 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
|
3534 reginput, &len) == 0) |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3535 { |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3536 *bytelen = len; |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3537 return TRUE; |
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 } |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3540 else |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3541 { |
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3542 if (sub->list.line[subidx].start == NULL |
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3543 || sub->list.line[subidx].end == NULL) |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3544 goto retempty; |
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3545 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
|
3546 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
|
3547 { |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3548 *bytelen = len; |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3549 return TRUE; |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3550 } |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3551 } |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3552 return FALSE; |
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 |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3555 #ifdef FEAT_SYN_HL |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3556 |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3557 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
|
3558 |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3559 /* |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3560 * Check for a match with \z subexpression "subidx". |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3561 * Return TRUE if it matches. |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3562 */ |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3563 static int |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3564 match_zref(subidx, bytelen) |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3565 int subidx; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3566 int *bytelen; /* out: length of match in bytes */ |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3567 { |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3568 int len; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3569 |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3570 cleanup_zsubexpr(); |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3571 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
|
3572 { |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3573 /* backref was not set, match an empty string */ |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3574 *bytelen = 0; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3575 return TRUE; |
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 |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3578 len = (int)STRLEN(re_extmatch_in->matches[subidx]); |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3579 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
|
3580 { |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3581 *bytelen = len; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3582 return TRUE; |
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 return FALSE; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3585 } |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3586 #endif |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3587 |
4444 | 3588 /* |
3589 * Set all NFA nodes' list ID equal to -1. | |
3590 */ | |
3591 static void | |
3592 nfa_set_neg_listids(start) | |
3593 nfa_state_T *start; | |
3594 { | |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3595 if (start != NULL && start->lastlist >= 0) |
4444 | 3596 { |
3597 start->lastlist = -1; | |
3598 nfa_set_neg_listids(start->out); | |
3599 nfa_set_neg_listids(start->out1); | |
3600 } | |
3601 } | |
3602 | |
3603 /* | |
3604 * Set all NFA nodes' list ID equal to 0. | |
3605 */ | |
3606 static void | |
3607 nfa_set_null_listids(start) | |
3608 nfa_state_T *start; | |
3609 { | |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3610 if (start != NULL && start->lastlist == -1) |
4444 | 3611 { |
3612 start->lastlist = 0; | |
3613 nfa_set_null_listids(start->out); | |
3614 nfa_set_null_listids(start->out1); | |
3615 } | |
3616 } | |
3617 | |
3618 /* | |
3619 * Save list IDs for all NFA states in "list". | |
3620 */ | |
3621 static void | |
3622 nfa_save_listids(start, list) | |
3623 nfa_state_T *start; | |
3624 int *list; | |
3625 { | |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3626 if (start != NULL && start->lastlist != -1) |
4444 | 3627 { |
3628 list[abs(start->id)] = start->lastlist; | |
3629 start->lastlist = -1; | |
3630 nfa_save_listids(start->out, list); | |
3631 nfa_save_listids(start->out1, list); | |
3632 } | |
3633 } | |
3634 | |
3635 /* | |
3636 * Restore list IDs from "list" to all NFA states. | |
3637 */ | |
3638 static void | |
3639 nfa_restore_listids(start, list) | |
3640 nfa_state_T *start; | |
3641 int *list; | |
3642 { | |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3643 if (start != NULL && start->lastlist == -1) |
4444 | 3644 { |
3645 start->lastlist = list[abs(start->id)]; | |
3646 nfa_restore_listids(start->out, list); | |
3647 nfa_restore_listids(start->out1, list); | |
3648 } | |
3649 } | |
3650 | |
4583
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
3651 static int |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
3652 nfa_re_num_cmp(val, op, pos) |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
3653 long_u val; |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
3654 int op; |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
3655 long_u pos; |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
3656 { |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
3657 if (op == 1) return pos > val; |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
3658 if (op == 2) return pos < val; |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
3659 return val == pos; |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
3660 } |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
3661 |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3662 static int nfa_regmatch __ARGS((nfa_state_T *start, regsubs_T *submatch, regsubs_T *m, save_se_T *endp)); |
4563
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3663 |
4444 | 3664 /* |
3665 * Main matching routine. | |
3666 * | |
3667 * Run NFA to determine whether it matches reginput. | |
3668 * | |
4682
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3669 * When "endp" is not NULL it is a required end-of-match position. |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3670 * |
4444 | 3671 * Return TRUE if there is a match, FALSE otherwise. |
3672 * Note: Caller must ensure that: start != NULL. | |
3673 */ | |
3674 static int | |
4682
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3675 nfa_regmatch(start, submatch, m, endp) |
4444 | 3676 nfa_state_T *start; |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3677 regsubs_T *submatch; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3678 regsubs_T *m; |
4682
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3679 save_se_T *endp; |
4444 | 3680 { |
3681 int result; | |
3682 int size = 0; | |
3683 int flag = 0; | |
4539
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3684 int go_to_nextline = FALSE; |
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3685 nfa_thread_T *t; |
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3686 nfa_list_T list[3]; |
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3687 nfa_list_T *listtbl[2][2]; |
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3688 nfa_list_T *ll; |
4444 | 3689 int listid = 1; |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
3690 int listidx; |
4539
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3691 nfa_list_T *thislist; |
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3692 nfa_list_T *nextlist; |
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3693 nfa_list_T *neglist; |
4444 | 3694 int *listids = NULL; |
4460 | 3695 #ifdef NFA_REGEXP_DEBUG_LOG |
4531
1be43c095aff
updated for version 7.3.1013
Bram Moolenaar <bram@vim.org>
parents:
4529
diff
changeset
|
3696 FILE *debug = fopen(NFA_REGEXP_DEBUG_LOG, "a"); |
4444 | 3697 |
3698 if (debug == NULL) | |
3699 { | |
4531
1be43c095aff
updated for version 7.3.1013
Bram Moolenaar <bram@vim.org>
parents:
4529
diff
changeset
|
3700 EMSG2(_("(NFA) COULD NOT OPEN %s !"), NFA_REGEXP_DEBUG_LOG); |
4444 | 3701 return FALSE; |
3702 } | |
3703 #endif | |
4561
4d81fdda8f35
updated for version 7.3.1028
Bram Moolenaar <bram@vim.org>
parents:
4559
diff
changeset
|
3704 nfa_match = FALSE; |
4444 | 3705 |
4563
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3706 /* Allocate memory for the lists of nodes. */ |
4539
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3707 size = (nstate + 1) * sizeof(nfa_thread_T); |
4647
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3708 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
|
3709 list[0].len = nstate + 1; |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3710 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
|
3711 list[1].len = nstate + 1; |
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3712 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
|
3713 list[2].len = nstate + 1; |
4444 | 3714 if (list[0].t == NULL || list[1].t == NULL || list[2].t == NULL) |
3715 goto theend; | |
3716 | |
3717 #ifdef ENABLE_LOG | |
4531
1be43c095aff
updated for version 7.3.1013
Bram Moolenaar <bram@vim.org>
parents:
4529
diff
changeset
|
3718 log_fd = fopen(NFA_REGEXP_RUN_LOG, "a"); |
4444 | 3719 if (log_fd != NULL) |
3720 { | |
3721 fprintf(log_fd, "**********************************\n"); | |
3722 nfa_set_code(start->c); | |
3723 fprintf(log_fd, " RUNNING nfa_regmatch() starting with state %d, code %s\n", | |
3724 abs(start->id), code); | |
3725 fprintf(log_fd, "**********************************\n"); | |
3726 } | |
3727 else | |
3728 { | |
3729 EMSG(_("Could not open temporary log file for writing, displaying on stderr ... ")); | |
3730 log_fd = stderr; | |
3731 } | |
3732 #endif | |
3733 | |
3734 thislist = &list[0]; | |
3735 thislist->n = 0; | |
3736 nextlist = &list[1]; | |
3737 nextlist->n = 0; | |
3738 neglist = &list[2]; | |
3739 neglist->n = 0; | |
3740 #ifdef ENABLE_LOG | |
3741 fprintf(log_fd, "(---) STARTSTATE\n"); | |
3742 #endif | |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3743 thislist->id = listid; |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3744 addstate(thislist, start, m, 0); |
4444 | 3745 |
3746 /* There are two cases when the NFA advances: 1. input char matches the | |
3747 * NFA node and 2. input char does not match the NFA node, but the next | |
3748 * node is NFA_NOT. The following macro calls addstate() according to | |
3749 * these rules. It is used A LOT, so use the "listtbl" table for speed */ | |
3750 listtbl[0][0] = NULL; | |
3751 listtbl[0][1] = neglist; | |
3752 listtbl[1][0] = nextlist; | |
3753 listtbl[1][1] = NULL; | |
3754 #define ADD_POS_NEG_STATE(node) \ | |
3755 ll = listtbl[result ? 1 : 0][node->negated]; \ | |
3756 if (ll != NULL) \ | |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3757 addstate(ll, node->out , &t->subs, clen); |
4444 | 3758 |
3759 | |
3760 /* | |
3761 * Run for each character. | |
3762 */ | |
4515
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
3763 for (;;) |
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
3764 { |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
3765 int curc; |
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
3766 int clen; |
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
3767 |
4444 | 3768 #ifdef FEAT_MBYTE |
3769 if (has_mbyte) | |
3770 { | |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
3771 curc = (*mb_ptr2char)(reginput); |
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
3772 clen = (*mb_ptr2len)(reginput); |
4444 | 3773 } |
3774 else | |
3775 #endif | |
3776 { | |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
3777 curc = *reginput; |
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
3778 clen = 1; |
4444 | 3779 } |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
3780 if (curc == NUL) |
4515
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
3781 { |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
3782 clen = 0; |
4515
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
3783 go_to_nextline = FALSE; |
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
3784 } |
4444 | 3785 |
3786 /* swap lists */ | |
3787 thislist = &list[flag]; | |
3788 nextlist = &list[flag ^= 1]; | |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3789 nextlist->n = 0; /* clear nextlist */ |
4444 | 3790 listtbl[1][0] = nextlist; |
3791 ++listid; | |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3792 thislist->id = listid; |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3793 nextlist->id = listid + 1; |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3794 neglist->id = listid + 1; |
4444 | 3795 |
3796 #ifdef ENABLE_LOG | |
3797 fprintf(log_fd, "------------------------------------------\n"); | |
3798 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
|
3799 fprintf(log_fd, ">>> Advanced one character ... Current char is %c (code %d) \n", curc, (int)curc); |
4444 | 3800 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
|
3801 { |
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
3802 int i; |
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
3803 |
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
3804 for (i = 0; i < thislist->n; i++) |
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
3805 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
|
3806 } |
4444 | 3807 fprintf(log_fd, "\n"); |
3808 #endif | |
3809 | |
4460 | 3810 #ifdef NFA_REGEXP_DEBUG_LOG |
4444 | 3811 fprintf(debug, "\n-------------------\n"); |
3812 #endif | |
4480 | 3813 /* |
3814 * If the state lists are empty we can stop. | |
3815 */ | |
3816 if (thislist->n == 0 && neglist->n == 0) | |
3817 break; | |
4444 | 3818 |
3819 /* compute nextlist */ | |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
3820 for (listidx = 0; listidx < thislist->n || neglist->n > 0; ++listidx) |
4444 | 3821 { |
3822 if (neglist->n > 0) | |
3823 { | |
3824 t = &neglist->t[0]; | |
4468 | 3825 neglist->n--; |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
3826 listidx--; |
4444 | 3827 } |
3828 else | |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
3829 t = &thislist->t[listidx]; |
4444 | 3830 |
4460 | 3831 #ifdef NFA_REGEXP_DEBUG_LOG |
4444 | 3832 nfa_set_code(t->state->c); |
3833 fprintf(debug, "%s, ", code); | |
3834 #endif | |
3835 #ifdef ENABLE_LOG | |
4657
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3836 { |
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3837 int col; |
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3838 |
4690
9d97a0c045ef
updated for version 7.3.1092
Bram Moolenaar <bram@vim.org>
parents:
4688
diff
changeset
|
3839 if (t->subs.norm.in_use <= 0) |
4657
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3840 col = -1; |
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3841 else if (REG_MULTI) |
4690
9d97a0c045ef
updated for version 7.3.1092
Bram Moolenaar <bram@vim.org>
parents:
4688
diff
changeset
|
3842 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
|
3843 else |
4690
9d97a0c045ef
updated for version 7.3.1092
Bram Moolenaar <bram@vim.org>
parents:
4688
diff
changeset
|
3844 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
|
3845 nfa_set_code(t->state->c); |
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3846 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
|
3847 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
|
3848 } |
4444 | 3849 #endif |
3850 | |
3851 /* | |
3852 * Handle the possible codes of the current state. | |
3853 * The most important is NFA_MATCH. | |
3854 */ | |
3855 switch (t->state->c) | |
3856 { | |
3857 case NFA_MATCH: | |
4567
96c1a7850097
updated for version 7.3.1031
Bram Moolenaar <bram@vim.org>
parents:
4565
diff
changeset
|
3858 { |
4561
4d81fdda8f35
updated for version 7.3.1028
Bram Moolenaar <bram@vim.org>
parents:
4559
diff
changeset
|
3859 nfa_match = TRUE; |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3860 copy_sub(&submatch->norm, &t->subs.norm); |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3861 #ifdef FEAT_SYN_HL |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3862 copy_sub(&submatch->synt, &t->subs.synt); |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3863 #endif |
4444 | 3864 #ifdef ENABLE_LOG |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3865 log_subsexpr(&t->subs); |
4444 | 3866 #endif |
4515
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
3867 /* 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
|
3868 * 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
|
3869 * 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
|
3870 * correct. */ |
7b835b2969af
updated for version 7.3.1024
Bram Moolenaar <bram@vim.org>
parents:
4551
diff
changeset
|
3871 if (nextlist->n == 0 && neglist->n == 0) |
7b835b2969af
updated for version 7.3.1024
Bram Moolenaar <bram@vim.org>
parents:
4551
diff
changeset
|
3872 clen = 0; |
4515
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
3873 goto nextchar; |
4567
96c1a7850097
updated for version 7.3.1031
Bram Moolenaar <bram@vim.org>
parents:
4565
diff
changeset
|
3874 } |
4444 | 3875 |
3876 case NFA_END_INVISIBLE: | |
4682
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3877 /* 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
|
3878 * NFA_START_INVISIBLE_BEFORE node. |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3879 * They surround a zero-width group, used with "\@=", "\&", |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3880 * "\@!", "\@<=" and "\@<!". |
4444 | 3881 * If we got here, it means that the current "invisible" group |
3882 * finished successfully, so return control to the parent | |
3883 * nfa_regmatch(). Submatches are stored in *m, and used in | |
3884 * the parent call. */ | |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3885 if (start->c == NFA_MOPEN) |
4682
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3886 /* TODO: do we ever get here? */ |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3887 addstate_here(thislist, t->state->out, &t->subs, &listidx); |
4444 | 3888 else |
3889 { | |
4682
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3890 #ifdef ENABLE_LOG |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3891 if (endp != NULL) |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3892 { |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3893 if (REG_MULTI) |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3894 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
|
3895 (int)reglnum, |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3896 (int)endp->se_u.pos.lnum, |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3897 (int)(reginput - regline), |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3898 endp->se_u.pos.col); |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3899 else |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3900 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
|
3901 (int)(reginput - regline), |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3902 (int)(endp->se_u.ptr - reginput)); |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3903 } |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3904 #endif |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3905 /* It's only a match if it ends at "endp" */ |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3906 if (endp != NULL && (REG_MULTI |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3907 ? (reglnum != endp->se_u.pos.lnum |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3908 || (int)(reginput - regline) |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3909 != endp->se_u.pos.col) |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3910 : reginput != endp->se_u.ptr)) |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3911 break; |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3912 |
4661
0dce3d812e7a
updated for version 7.3.1078
Bram Moolenaar <bram@vim.org>
parents:
4657
diff
changeset
|
3913 /* do not set submatches for \@! */ |
0dce3d812e7a
updated for version 7.3.1078
Bram Moolenaar <bram@vim.org>
parents:
4657
diff
changeset
|
3914 if (!t->state->negated) |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3915 { |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3916 copy_sub(&m->norm, &t->subs.norm); |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3917 #ifdef FEAT_SYN_HL |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3918 copy_sub(&m->synt, &t->subs.synt); |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3919 #endif |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3920 } |
4561
4d81fdda8f35
updated for version 7.3.1028
Bram Moolenaar <bram@vim.org>
parents:
4559
diff
changeset
|
3921 nfa_match = TRUE; |
4444 | 3922 } |
3923 break; | |
3924 | |
3925 case NFA_START_INVISIBLE: | |
4682
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3926 case NFA_START_INVISIBLE_BEFORE: |
4669
2d15582e132f
updated for version 7.3.1082
Bram Moolenaar <bram@vim.org>
parents:
4667
diff
changeset
|
3927 { |
4682
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3928 char_u *save_reginput = reginput; |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3929 char_u *save_regline = regline; |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3930 int save_reglnum = reglnum; |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3931 int save_nfa_match = nfa_match; |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3932 save_se_T endpos; |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3933 save_se_T *endposp = NULL; |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3934 |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3935 if (t->state->c == NFA_START_INVISIBLE_BEFORE) |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3936 { |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3937 /* 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
|
3938 endposp = &endpos; |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3939 if (REG_MULTI) |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3940 { |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3941 endpos.se_u.pos.col = (int)(reginput - regline); |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3942 endpos.se_u.pos.lnum = reglnum; |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3943 } |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3944 else |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3945 endpos.se_u.ptr = reginput; |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3946 |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3947 /* 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
|
3948 * 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
|
3949 * not matching "\@<!". |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3950 * 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
|
3951 * 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
|
3952 if (t->state->val <= 0) |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3953 { |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3954 if (REG_MULTI) |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3955 { |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3956 regline = reg_getline(--reglnum); |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3957 if (regline == NULL) |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3958 /* can't go before the first line */ |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3959 regline = reg_getline(++reglnum); |
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 reginput = regline; |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3962 } |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3963 else |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3964 { |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3965 if (REG_MULTI |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3966 && (int)(reginput - regline) < t->state->val) |
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 /* 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
|
3969 * previous line. */ |
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 { |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3973 /* can't go before the first line */ |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3974 regline = reg_getline(++reglnum); |
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 reginput = regline + STRLEN(regline); |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3979 } |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3980 if ((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 reginput -= t->state->val; |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3983 #ifdef FEAT_MBYTE |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3984 if (has_mbyte) |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3985 reginput -= mb_head_off(regline, reginput); |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3986 #endif |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3987 } |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3988 else |
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 } |
4669
2d15582e132f
updated for version 7.3.1082
Bram Moolenaar <bram@vim.org>
parents:
4667
diff
changeset
|
3992 |
2d15582e132f
updated for version 7.3.1082
Bram Moolenaar <bram@vim.org>
parents:
4667
diff
changeset
|
3993 /* 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
|
3994 * 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
|
3995 * NFA_END_INVISIBLE */ |
4444 | 3996 if (listids == NULL) |
3997 { | |
4669
2d15582e132f
updated for version 7.3.1082
Bram Moolenaar <bram@vim.org>
parents:
4667
diff
changeset
|
3998 listids = (int *)lalloc(sizeof(int) * nstate, TRUE); |
4444 | 3999 if (listids == NULL) |
4000 { | |
4001 EMSG(_("E878: (NFA) Could not allocate memory for branch traversal!")); | |
4002 return 0; | |
4003 } | |
4004 } | |
4005 #ifdef ENABLE_LOG | |
4006 if (log_fd != stderr) | |
4007 fclose(log_fd); | |
4008 log_fd = NULL; | |
4009 #endif | |
4010 /* Have to clear the listid field of the NFA nodes, so that | |
4011 * nfa_regmatch() and addstate() can run properly after | |
4012 * recursion. */ | |
4013 nfa_save_listids(start, listids); | |
4014 nfa_set_null_listids(start); | |
4682
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
4015 result = nfa_regmatch(t->state->out, submatch, m, endposp); |
4444 | 4016 nfa_set_neg_listids(start); |
4017 nfa_restore_listids(start, listids); | |
4669
2d15582e132f
updated for version 7.3.1082
Bram Moolenaar <bram@vim.org>
parents:
4667
diff
changeset
|
4018 |
2d15582e132f
updated for version 7.3.1082
Bram Moolenaar <bram@vim.org>
parents:
4667
diff
changeset
|
4019 /* restore position in input text */ |
2d15582e132f
updated for version 7.3.1082
Bram Moolenaar <bram@vim.org>
parents:
4667
diff
changeset
|
4020 reginput = save_reginput; |
2d15582e132f
updated for version 7.3.1082
Bram Moolenaar <bram@vim.org>
parents:
4667
diff
changeset
|
4021 regline = save_regline; |
2d15582e132f
updated for version 7.3.1082
Bram Moolenaar <bram@vim.org>
parents:
4667
diff
changeset
|
4022 reglnum = save_reglnum; |
2d15582e132f
updated for version 7.3.1082
Bram Moolenaar <bram@vim.org>
parents:
4667
diff
changeset
|
4023 nfa_match = save_nfa_match; |
4444 | 4024 |
4025 #ifdef ENABLE_LOG | |
4531
1be43c095aff
updated for version 7.3.1013
Bram Moolenaar <bram@vim.org>
parents:
4529
diff
changeset
|
4026 log_fd = fopen(NFA_REGEXP_RUN_LOG, "a"); |
4444 | 4027 if (log_fd != NULL) |
4028 { | |
4029 fprintf(log_fd, "****************************\n"); | |
4030 fprintf(log_fd, "FINISHED RUNNING nfa_regmatch() recursively\n"); | |
4031 fprintf(log_fd, "MATCH = %s\n", result == TRUE ? "OK" : "FALSE"); | |
4032 fprintf(log_fd, "****************************\n"); | |
4033 } | |
4034 else | |
4035 { | |
4036 EMSG(_("Could not open temporary log file for writing, displaying on stderr ... ")); | |
4037 log_fd = stderr; | |
4038 } | |
4039 #endif | |
4661
0dce3d812e7a
updated for version 7.3.1078
Bram Moolenaar <bram@vim.org>
parents:
4657
diff
changeset
|
4040 /* 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
|
4041 if (result != t->state->negated) |
4444 | 4042 { |
4043 /* Copy submatch info from the recursive call */ | |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4044 copy_sub_off(&t->subs.norm, &m->norm); |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4045 #ifdef FEAT_SYN_HL |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4046 copy_sub_off(&t->subs.synt, &m->synt); |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4047 #endif |
4657
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
4048 |
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
4049 /* 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
|
4050 * 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
|
4051 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
|
4052 &listidx); |
4444 | 4053 } |
4054 break; | |
4669
2d15582e132f
updated for version 7.3.1082
Bram Moolenaar <bram@vim.org>
parents:
4667
diff
changeset
|
4055 } |
4444 | 4056 |
4057 case NFA_BOL: | |
4058 if (reginput == regline) | |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4059 addstate_here(thislist, t->state->out, &t->subs, &listidx); |
4444 | 4060 break; |
4061 | |
4062 case NFA_EOL: | |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4063 if (curc == NUL) |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4064 addstate_here(thislist, t->state->out, &t->subs, &listidx); |
4444 | 4065 break; |
4066 | |
4067 case NFA_BOW: | |
4068 { | |
4069 int bow = TRUE; | |
4070 | |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4071 if (curc == NUL) |
4444 | 4072 bow = FALSE; |
4073 #ifdef FEAT_MBYTE | |
4074 else if (has_mbyte) | |
4075 { | |
4076 int this_class; | |
4077 | |
4078 /* Get class of current and previous char (if it exists). */ | |
4503 | 4079 this_class = mb_get_class_buf(reginput, reg_buf); |
4444 | 4080 if (this_class <= 1) |
4081 bow = FALSE; | |
4082 else if (reg_prev_class() == this_class) | |
4083 bow = FALSE; | |
4084 } | |
4085 #endif | |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4086 else if (!vim_iswordc_buf(curc, reg_buf) |
4503 | 4087 || (reginput > regline |
4088 && vim_iswordc_buf(reginput[-1], reg_buf))) | |
4444 | 4089 bow = FALSE; |
4090 if (bow) | |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4091 addstate_here(thislist, t->state->out, &t->subs, &listidx); |
4444 | 4092 break; |
4093 } | |
4094 | |
4095 case NFA_EOW: | |
4096 { | |
4097 int eow = TRUE; | |
4098 | |
4099 if (reginput == regline) | |
4100 eow = FALSE; | |
4101 #ifdef FEAT_MBYTE | |
4102 else if (has_mbyte) | |
4103 { | |
4104 int this_class, prev_class; | |
4105 | |
4106 /* Get class of current and previous char (if it exists). */ | |
4503 | 4107 this_class = mb_get_class_buf(reginput, reg_buf); |
4444 | 4108 prev_class = reg_prev_class(); |
4109 if (this_class == prev_class | |
4110 || prev_class == 0 || prev_class == 1) | |
4111 eow = FALSE; | |
4112 } | |
4113 #endif | |
4503 | 4114 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
|
4115 || (reginput[0] != NUL |
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4116 && vim_iswordc_buf(curc, reg_buf))) |
4444 | 4117 eow = FALSE; |
4118 if (eow) | |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4119 addstate_here(thislist, t->state->out, &t->subs, &listidx); |
4444 | 4120 break; |
4121 } | |
4122 | |
4671
b3c59716e700
updated for version 7.3.1083
Bram Moolenaar <bram@vim.org>
parents:
4669
diff
changeset
|
4123 case NFA_BOF: |
b3c59716e700
updated for version 7.3.1083
Bram Moolenaar <bram@vim.org>
parents:
4669
diff
changeset
|
4124 if (reglnum == 0 && reginput == regline |
b3c59716e700
updated for version 7.3.1083
Bram Moolenaar <bram@vim.org>
parents:
4669
diff
changeset
|
4125 && (!REG_MULTI || reg_firstlnum == 1)) |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4126 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
|
4127 break; |
b3c59716e700
updated for version 7.3.1083
Bram Moolenaar <bram@vim.org>
parents:
4669
diff
changeset
|
4128 |
b3c59716e700
updated for version 7.3.1083
Bram Moolenaar <bram@vim.org>
parents:
4669
diff
changeset
|
4129 case NFA_EOF: |
b3c59716e700
updated for version 7.3.1083
Bram Moolenaar <bram@vim.org>
parents:
4669
diff
changeset
|
4130 if (reglnum == reg_maxline && curc == NUL) |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4131 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
|
4132 break; |
b3c59716e700
updated for version 7.3.1083
Bram Moolenaar <bram@vim.org>
parents:
4669
diff
changeset
|
4133 |
4527
55bcaa1d2749
updated for version 7.3.1011
Bram Moolenaar <bram@vim.org>
parents:
4525
diff
changeset
|
4134 #ifdef FEAT_MBYTE |
4444 | 4135 case NFA_COMPOSING: |
4527
55bcaa1d2749
updated for version 7.3.1011
Bram Moolenaar <bram@vim.org>
parents:
4525
diff
changeset
|
4136 { |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4137 int mc = curc; |
4531
1be43c095aff
updated for version 7.3.1013
Bram Moolenaar <bram@vim.org>
parents:
4529
diff
changeset
|
4138 int len = 0; |
1be43c095aff
updated for version 7.3.1013
Bram Moolenaar <bram@vim.org>
parents:
4529
diff
changeset
|
4139 nfa_state_T *end; |
1be43c095aff
updated for version 7.3.1013
Bram Moolenaar <bram@vim.org>
parents:
4529
diff
changeset
|
4140 nfa_state_T *sta; |
4547
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4141 int cchars[MAX_MCO]; |
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4142 int ccount = 0; |
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4143 int j; |
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4144 |
4444 | 4145 sta = t->state->out; |
4527
55bcaa1d2749
updated for version 7.3.1011
Bram Moolenaar <bram@vim.org>
parents:
4525
diff
changeset
|
4146 len = 0; |
4535
45f97c349537
updated for version 7.3.1015
Bram Moolenaar <bram@vim.org>
parents:
4533
diff
changeset
|
4147 if (utf_iscomposing(sta->c)) |
45f97c349537
updated for version 7.3.1015
Bram Moolenaar <bram@vim.org>
parents:
4533
diff
changeset
|
4148 { |
45f97c349537
updated for version 7.3.1015
Bram Moolenaar <bram@vim.org>
parents:
4533
diff
changeset
|
4149 /* Only match composing character(s), ignore base |
45f97c349537
updated for version 7.3.1015
Bram Moolenaar <bram@vim.org>
parents:
4533
diff
changeset
|
4150 * character. Used for ".{composing}" and "{composing}" |
45f97c349537
updated for version 7.3.1015
Bram Moolenaar <bram@vim.org>
parents:
4533
diff
changeset
|
4151 * (no preceding character). */ |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4152 len += mb_char2len(mc); |
4535
45f97c349537
updated for version 7.3.1015
Bram Moolenaar <bram@vim.org>
parents:
4533
diff
changeset
|
4153 } |
4551
f0c37f5cf4ea
updated for version 7.3.1023
Bram Moolenaar <bram@vim.org>
parents:
4549
diff
changeset
|
4154 if (ireg_icombine && len == 0) |
4444 | 4155 { |
4535
45f97c349537
updated for version 7.3.1015
Bram Moolenaar <bram@vim.org>
parents:
4533
diff
changeset
|
4156 /* If \Z was present, then ignore composing characters. |
45f97c349537
updated for version 7.3.1015
Bram Moolenaar <bram@vim.org>
parents:
4533
diff
changeset
|
4157 * 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
|
4158 /* TODO: How about negated? */ |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4159 if (len == 0 && sta->c != curc) |
4529
432a6b8c7d93
updated for version 7.3.1012
Bram Moolenaar <bram@vim.org>
parents:
4527
diff
changeset
|
4160 result = FAIL; |
4547
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4161 else |
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4162 result = OK; |
4529
432a6b8c7d93
updated for version 7.3.1012
Bram Moolenaar <bram@vim.org>
parents:
4527
diff
changeset
|
4163 while (sta->c != NFA_END_COMPOSING) |
432a6b8c7d93
updated for version 7.3.1012
Bram Moolenaar <bram@vim.org>
parents:
4527
diff
changeset
|
4164 sta = sta->out; |
4444 | 4165 } |
4547
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4166 |
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4167 /* Check base character matches first, unless ignored. */ |
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4168 else if (len > 0 || mc == sta->c) |
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4169 { |
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4170 if (len == 0) |
4529
432a6b8c7d93
updated for version 7.3.1012
Bram Moolenaar <bram@vim.org>
parents:
4527
diff
changeset
|
4171 { |
432a6b8c7d93
updated for version 7.3.1012
Bram Moolenaar <bram@vim.org>
parents:
4527
diff
changeset
|
4172 len += mb_char2len(mc); |
432a6b8c7d93
updated for version 7.3.1012
Bram Moolenaar <bram@vim.org>
parents:
4527
diff
changeset
|
4173 sta = sta->out; |
432a6b8c7d93
updated for version 7.3.1012
Bram Moolenaar <bram@vim.org>
parents:
4527
diff
changeset
|
4174 } |
4444 | 4175 |
4547
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4176 /* 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
|
4177 * Get them into cchars[] first. */ |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4178 while (len < clen) |
4547
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4179 { |
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4180 mc = mb_ptr2char(reginput + len); |
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4181 cchars[ccount++] = mc; |
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4182 len += mb_char2len(mc); |
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4183 if (ccount == MAX_MCO) |
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4184 break; |
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 |
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4187 /* 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
|
4188 * 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
|
4189 * composing chars are matched. */ |
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4190 result = OK; |
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4191 while (sta->c != NFA_END_COMPOSING) |
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4192 { |
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4193 for (j = 0; j < ccount; ++j) |
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4194 if (cchars[j] == sta->c) |
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4195 break; |
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4196 if (j == ccount) |
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4197 { |
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4198 result = FAIL; |
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4199 break; |
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4200 } |
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4201 sta = sta->out; |
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 } |
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4204 else |
4525
36ddcf4cecbc
updated for version 7.3.1010
Bram Moolenaar <bram@vim.org>
parents:
4517
diff
changeset
|
4205 result = FAIL; |
4547
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4206 |
4527
55bcaa1d2749
updated for version 7.3.1011
Bram Moolenaar <bram@vim.org>
parents:
4525
diff
changeset
|
4207 end = t->state->out1; /* NFA_END_COMPOSING */ |
4444 | 4208 ADD_POS_NEG_STATE(end); |
4209 break; | |
4527
55bcaa1d2749
updated for version 7.3.1011
Bram Moolenaar <bram@vim.org>
parents:
4525
diff
changeset
|
4210 } |
55bcaa1d2749
updated for version 7.3.1011
Bram Moolenaar <bram@vim.org>
parents:
4525
diff
changeset
|
4211 #endif |
4444 | 4212 |
4213 case NFA_NEWL: | |
4555
b2946c06d1b6
updated for version 7.3.1025
Bram Moolenaar <bram@vim.org>
parents:
4553
diff
changeset
|
4214 if (curc == NUL && !reg_line_lbr && REG_MULTI |
b2946c06d1b6
updated for version 7.3.1025
Bram Moolenaar <bram@vim.org>
parents:
4553
diff
changeset
|
4215 && reglnum <= reg_maxline) |
4444 | 4216 { |
4515
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
4217 go_to_nextline = TRUE; |
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
4218 /* 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
|
4219 * at the start of the next line. */ |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4220 addstate(nextlist, t->state->out, &t->subs, -1); |
4444 | 4221 } |
4555
b2946c06d1b6
updated for version 7.3.1025
Bram Moolenaar <bram@vim.org>
parents:
4553
diff
changeset
|
4222 else if (curc == '\n' && reg_line_lbr) |
b2946c06d1b6
updated for version 7.3.1025
Bram Moolenaar <bram@vim.org>
parents:
4553
diff
changeset
|
4223 { |
b2946c06d1b6
updated for version 7.3.1025
Bram Moolenaar <bram@vim.org>
parents:
4553
diff
changeset
|
4224 /* 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
|
4225 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
|
4226 } |
4444 | 4227 break; |
4228 | |
4229 case NFA_CLASS_ALNUM: | |
4230 case NFA_CLASS_ALPHA: | |
4231 case NFA_CLASS_BLANK: | |
4232 case NFA_CLASS_CNTRL: | |
4233 case NFA_CLASS_DIGIT: | |
4234 case NFA_CLASS_GRAPH: | |
4235 case NFA_CLASS_LOWER: | |
4236 case NFA_CLASS_PRINT: | |
4237 case NFA_CLASS_PUNCT: | |
4238 case NFA_CLASS_SPACE: | |
4239 case NFA_CLASS_UPPER: | |
4240 case NFA_CLASS_XDIGIT: | |
4241 case NFA_CLASS_TAB: | |
4242 case NFA_CLASS_RETURN: | |
4243 case NFA_CLASS_BACKSPACE: | |
4244 case NFA_CLASS_ESCAPE: | |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4245 result = check_char_class(t->state->c, curc); |
4444 | 4246 ADD_POS_NEG_STATE(t->state); |
4247 break; | |
4248 | |
4249 case NFA_END_NEG_RANGE: | |
4250 /* This follows a series of negated nodes, like: | |
4251 * 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
|
4252 if (curc > 0) |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4253 addstate(nextlist, t->state->out, &t->subs, clen); |
4444 | 4254 break; |
4255 | |
4256 case NFA_ANY: | |
4515
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
4257 /* 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
|
4258 if (curc > 0) |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4259 addstate(nextlist, t->state->out, &t->subs, clen); |
4444 | 4260 break; |
4261 | |
4262 /* | |
4263 * Character classes like \a for alpha, \d for digit etc. | |
4264 */ | |
4265 case NFA_IDENT: /* \i */ | |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4266 result = vim_isIDc(curc); |
4444 | 4267 ADD_POS_NEG_STATE(t->state); |
4268 break; | |
4269 | |
4270 case NFA_SIDENT: /* \I */ | |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4271 result = !VIM_ISDIGIT(curc) && vim_isIDc(curc); |
4444 | 4272 ADD_POS_NEG_STATE(t->state); |
4273 break; | |
4274 | |
4275 case NFA_KWORD: /* \k */ | |
4503 | 4276 result = vim_iswordp_buf(reginput, reg_buf); |
4444 | 4277 ADD_POS_NEG_STATE(t->state); |
4278 break; | |
4279 | |
4280 case NFA_SKWORD: /* \K */ | |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4281 result = !VIM_ISDIGIT(curc) |
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4282 && vim_iswordp_buf(reginput, reg_buf); |
4444 | 4283 ADD_POS_NEG_STATE(t->state); |
4284 break; | |
4285 | |
4286 case NFA_FNAME: /* \f */ | |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4287 result = vim_isfilec(curc); |
4444 | 4288 ADD_POS_NEG_STATE(t->state); |
4289 break; | |
4290 | |
4291 case NFA_SFNAME: /* \F */ | |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4292 result = !VIM_ISDIGIT(curc) && vim_isfilec(curc); |
4444 | 4293 ADD_POS_NEG_STATE(t->state); |
4294 break; | |
4295 | |
4296 case NFA_PRINT: /* \p */ | |
4470 | 4297 result = ptr2cells(reginput) == 1; |
4444 | 4298 ADD_POS_NEG_STATE(t->state); |
4299 break; | |
4300 | |
4301 case NFA_SPRINT: /* \P */ | |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4302 result = !VIM_ISDIGIT(curc) && ptr2cells(reginput) == 1; |
4444 | 4303 ADD_POS_NEG_STATE(t->state); |
4304 break; | |
4305 | |
4306 case NFA_WHITE: /* \s */ | |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4307 result = vim_iswhite(curc); |
4444 | 4308 ADD_POS_NEG_STATE(t->state); |
4309 break; | |
4310 | |
4311 case NFA_NWHITE: /* \S */ | |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4312 result = curc != NUL && !vim_iswhite(curc); |
4444 | 4313 ADD_POS_NEG_STATE(t->state); |
4314 break; | |
4315 | |
4316 case NFA_DIGIT: /* \d */ | |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4317 result = ri_digit(curc); |
4444 | 4318 ADD_POS_NEG_STATE(t->state); |
4319 break; | |
4320 | |
4321 case NFA_NDIGIT: /* \D */ | |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4322 result = curc != NUL && !ri_digit(curc); |
4444 | 4323 ADD_POS_NEG_STATE(t->state); |
4324 break; | |
4325 | |
4326 case NFA_HEX: /* \x */ | |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4327 result = ri_hex(curc); |
4444 | 4328 ADD_POS_NEG_STATE(t->state); |
4329 break; | |
4330 | |
4331 case NFA_NHEX: /* \X */ | |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4332 result = curc != NUL && !ri_hex(curc); |
4444 | 4333 ADD_POS_NEG_STATE(t->state); |
4334 break; | |
4335 | |
4336 case NFA_OCTAL: /* \o */ | |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4337 result = ri_octal(curc); |
4444 | 4338 ADD_POS_NEG_STATE(t->state); |
4339 break; | |
4340 | |
4341 case NFA_NOCTAL: /* \O */ | |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4342 result = curc != NUL && !ri_octal(curc); |
4444 | 4343 ADD_POS_NEG_STATE(t->state); |
4344 break; | |
4345 | |
4346 case NFA_WORD: /* \w */ | |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4347 result = ri_word(curc); |
4444 | 4348 ADD_POS_NEG_STATE(t->state); |
4349 break; | |
4350 | |
4351 case NFA_NWORD: /* \W */ | |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4352 result = curc != NUL && !ri_word(curc); |
4444 | 4353 ADD_POS_NEG_STATE(t->state); |
4354 break; | |
4355 | |
4356 case NFA_HEAD: /* \h */ | |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4357 result = ri_head(curc); |
4444 | 4358 ADD_POS_NEG_STATE(t->state); |
4359 break; | |
4360 | |
4361 case NFA_NHEAD: /* \H */ | |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4362 result = curc != NUL && !ri_head(curc); |
4444 | 4363 ADD_POS_NEG_STATE(t->state); |
4364 break; | |
4365 | |
4366 case NFA_ALPHA: /* \a */ | |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4367 result = ri_alpha(curc); |
4444 | 4368 ADD_POS_NEG_STATE(t->state); |
4369 break; | |
4370 | |
4371 case NFA_NALPHA: /* \A */ | |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4372 result = curc != NUL && !ri_alpha(curc); |
4444 | 4373 ADD_POS_NEG_STATE(t->state); |
4374 break; | |
4375 | |
4376 case NFA_LOWER: /* \l */ | |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4377 result = ri_lower(curc); |
4444 | 4378 ADD_POS_NEG_STATE(t->state); |
4379 break; | |
4380 | |
4381 case NFA_NLOWER: /* \L */ | |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4382 result = curc != NUL && !ri_lower(curc); |
4444 | 4383 ADD_POS_NEG_STATE(t->state); |
4384 break; | |
4385 | |
4386 case NFA_UPPER: /* \u */ | |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4387 result = ri_upper(curc); |
4444 | 4388 ADD_POS_NEG_STATE(t->state); |
4389 break; | |
4390 | |
4391 case NFA_NUPPER: /* \U */ | |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4392 result = curc != NUL && !ri_upper(curc); |
4444 | 4393 ADD_POS_NEG_STATE(t->state); |
4394 break; | |
4395 | |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4396 case NFA_BACKREF1: |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4397 case NFA_BACKREF2: |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4398 case NFA_BACKREF3: |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4399 case NFA_BACKREF4: |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4400 case NFA_BACKREF5: |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4401 case NFA_BACKREF6: |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4402 case NFA_BACKREF7: |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4403 case NFA_BACKREF8: |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4404 case NFA_BACKREF9: |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4405 #ifdef FEAT_SYN_HL |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4406 case NFA_ZREF1: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4407 case NFA_ZREF2: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4408 case NFA_ZREF3: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4409 case NFA_ZREF4: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4410 case NFA_ZREF5: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4411 case NFA_ZREF6: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4412 case NFA_ZREF7: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4413 case NFA_ZREF8: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4414 case NFA_ZREF9: |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4415 #endif |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4416 /* \1 .. \9 \z1 .. \z9 */ |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4417 { |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4418 int subidx; |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4419 int bytelen; |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4420 |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4421 if (t->state->c <= NFA_BACKREF9) |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4422 { |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4423 subidx = t->state->c - NFA_BACKREF1 + 1; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4424 result = match_backref(&t->subs.norm, subidx, &bytelen); |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4425 } |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4426 #ifdef FEAT_SYN_HL |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4427 else |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4428 { |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4429 subidx = t->state->c - NFA_ZREF1 + 1; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4430 result = match_zref(subidx, &bytelen); |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4431 } |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4432 #endif |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4433 |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4434 if (result) |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4435 { |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4436 if (bytelen == 0) |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4437 { |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4438 /* empty match always works, add NFA_SKIP with zero to |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4439 * be used next */ |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4440 addstate_here(thislist, t->state->out, &t->subs, |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4441 &listidx); |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4442 thislist->t[listidx + 1].count = 0; |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4443 } |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4444 else if (bytelen <= clen) |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4445 { |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4446 /* match current character, jump ahead to out of |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4447 * NFA_SKIP */ |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4448 addstate(nextlist, t->state->out->out, &t->subs, clen); |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4449 #ifdef ENABLE_LOG |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4450 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
|
4451 #endif |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4452 } |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4453 else |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4454 { |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4455 /* skip ofer the matched characters, set character |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4456 * count in NFA_SKIP */ |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4457 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
|
4458 nextlist->t[nextlist->n - 1].count = bytelen - clen; |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4459 #ifdef ENABLE_LOG |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4460 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
|
4461 #endif |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4462 } |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4463 |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4464 } |
4482 | 4465 break; |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4466 } |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4467 case NFA_SKIP: |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4468 /* charater of previous matching \1 .. \9 */ |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4469 if (t->count - clen <= 0) |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4470 { |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4471 /* end of match, go to what follows */ |
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, clen); |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4473 #ifdef ENABLE_LOG |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4474 log_subsexpr(&nextlist->t[nextlist->n - 1].subs); |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4475 #endif |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4476 } |
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4477 else |
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 /* add state again with decremented count */ |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4480 addstate(nextlist, t->state, &t->subs, 0); |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4481 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
|
4482 #ifdef ENABLE_LOG |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4483 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
|
4484 #endif |
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 break; |
4482 | 4487 |
4488 case NFA_SKIP_CHAR: | |
4489 case NFA_ZSTART: | |
4569
f262fb02889d
updated for version 7.3.1032
Bram Moolenaar <bram@vim.org>
parents:
4567
diff
changeset
|
4490 case NFA_ZEND: |
4482 | 4491 /* TODO: should not happen? */ |
4492 break; | |
4493 | |
4583
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4494 case NFA_LNUM: |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4495 case NFA_LNUM_GT: |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4496 case NFA_LNUM_LT: |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4497 result = (REG_MULTI && |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4498 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
|
4499 (long_u)(reglnum + reg_firstlnum))); |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4500 if (result) |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4501 addstate_here(thislist, t->state->out, &t->subs, &listidx); |
4583
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4502 break; |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4503 |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4504 case NFA_COL: |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4505 case NFA_COL_GT: |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4506 case NFA_COL_LT: |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4507 result = nfa_re_num_cmp(t->state->val, t->state->c - NFA_COL, |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4508 (long_u)(reginput - regline) + 1); |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4509 if (result) |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4510 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
|
4511 break; |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4512 |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4513 case NFA_VCOL: |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4514 case NFA_VCOL_GT: |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4515 case NFA_VCOL_LT: |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4516 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
|
4517 (long_u)win_linetabsize( |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4518 reg_win == NULL ? curwin : reg_win, |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4519 regline, (colnr_T)(reginput - regline)) + 1); |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4520 if (result) |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4521 addstate_here(thislist, t->state->out, &t->subs, &listidx); |
4583
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4522 break; |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4523 |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4524 case NFA_CURSOR: |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4525 result = (reg_win != NULL |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4526 && (reglnum + reg_firstlnum == reg_win->w_cursor.lnum) |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4527 && ((colnr_T)(reginput - regline) |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4528 == reg_win->w_cursor.col)); |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4529 if (result) |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4530 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
|
4531 break; |
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4532 |
4444 | 4533 default: /* regular character */ |
4559
04086e297563
updated for version 7.3.1027
Bram Moolenaar <bram@vim.org>
parents:
4557
diff
changeset
|
4534 { |
04086e297563
updated for version 7.3.1027
Bram Moolenaar <bram@vim.org>
parents:
4557
diff
changeset
|
4535 int c = t->state->c; |
04086e297563
updated for version 7.3.1027
Bram Moolenaar <bram@vim.org>
parents:
4557
diff
changeset
|
4536 |
4482 | 4537 /* TODO: put this in #ifdef later */ |
4559
04086e297563
updated for version 7.3.1027
Bram Moolenaar <bram@vim.org>
parents:
4557
diff
changeset
|
4538 if (c < -256) |
04086e297563
updated for version 7.3.1027
Bram Moolenaar <bram@vim.org>
parents:
4557
diff
changeset
|
4539 EMSGN("INTERNAL: Negative state char: %ld", c); |
04086e297563
updated for version 7.3.1027
Bram Moolenaar <bram@vim.org>
parents:
4557
diff
changeset
|
4540 if (is_Magic(c)) |
04086e297563
updated for version 7.3.1027
Bram Moolenaar <bram@vim.org>
parents:
4557
diff
changeset
|
4541 c = un_Magic(c); |
04086e297563
updated for version 7.3.1027
Bram Moolenaar <bram@vim.org>
parents:
4557
diff
changeset
|
4542 result = (c == curc); |
04086e297563
updated for version 7.3.1027
Bram Moolenaar <bram@vim.org>
parents:
4557
diff
changeset
|
4543 |
04086e297563
updated for version 7.3.1027
Bram Moolenaar <bram@vim.org>
parents:
4557
diff
changeset
|
4544 if (!result && ireg_ic) |
04086e297563
updated for version 7.3.1027
Bram Moolenaar <bram@vim.org>
parents:
4557
diff
changeset
|
4545 result = MB_TOLOWER(c) == MB_TOLOWER(curc); |
4527
55bcaa1d2749
updated for version 7.3.1011
Bram Moolenaar <bram@vim.org>
parents:
4525
diff
changeset
|
4546 #ifdef FEAT_MBYTE |
55bcaa1d2749
updated for version 7.3.1011
Bram Moolenaar <bram@vim.org>
parents:
4525
diff
changeset
|
4547 /* 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
|
4548 * 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
|
4549 * character uses NFA_COMPOSING above. */ |
55bcaa1d2749
updated for version 7.3.1011
Bram Moolenaar <bram@vim.org>
parents:
4525
diff
changeset
|
4550 if (result && enc_utf8 && !ireg_icombine |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4551 && clen != utf_char2len(curc)) |
4527
55bcaa1d2749
updated for version 7.3.1011
Bram Moolenaar <bram@vim.org>
parents:
4525
diff
changeset
|
4552 result = FALSE; |
55bcaa1d2749
updated for version 7.3.1011
Bram Moolenaar <bram@vim.org>
parents:
4525
diff
changeset
|
4553 #endif |
4444 | 4554 ADD_POS_NEG_STATE(t->state); |
4555 break; | |
4559
04086e297563
updated for version 7.3.1027
Bram Moolenaar <bram@vim.org>
parents:
4557
diff
changeset
|
4556 } |
4444 | 4557 } |
4558 | |
4559 } /* for (thislist = thislist; thislist->state; thislist++) */ | |
4560 | |
4557
888c12c899e5
updated for version 7.3.1026
Bram Moolenaar <bram@vim.org>
parents:
4555
diff
changeset
|
4561 /* 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
|
4562 * start state to the list of states. |
888c12c899e5
updated for version 7.3.1026
Bram Moolenaar <bram@vim.org>
parents:
4555
diff
changeset
|
4563 * 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
|
4564 * matters! |
888c12c899e5
updated for version 7.3.1026
Bram Moolenaar <bram@vim.org>
parents:
4555
diff
changeset
|
4565 * 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
|
4566 * because recursive calls should only start in the first position. |
4682
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
4567 * Unless "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
|
4568 * 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
|
4569 if (nfa_match == FALSE |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4570 && ((start->c == NFA_MOPEN |
4682
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
4571 && reglnum == 0 |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
4572 && clen != 0 |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
4573 && (ireg_maxcol == 0 |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
4574 || (colnr_T)(reginput - regline) < ireg_maxcol)) |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
4575 || (endp != NULL |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
4576 && (REG_MULTI |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
4577 ? (reglnum < endp->se_u.pos.lnum |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
4578 || (reglnum == endp->se_u.pos.lnum |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
4579 && (int)(reginput - regline) |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
4580 < endp->se_u.pos.col)) |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
4581 : reginput < endp->se_u.ptr)))) |
4444 | 4582 { |
4583 #ifdef ENABLE_LOG | |
4584 fprintf(log_fd, "(---) STARTSTATE\n"); | |
4585 #endif | |
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4586 addstate(nextlist, start, m, clen); |
4444 | 4587 } |
4588 | |
4589 #ifdef ENABLE_LOG | |
4590 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
|
4591 { |
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4592 int i; |
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4593 |
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4594 for (i = 0; i < thislist->n; i++) |
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4595 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
|
4596 } |
4444 | 4597 fprintf(log_fd, "\n"); |
4598 #endif | |
4599 | |
4600 nextchar: | |
4515
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
4601 /* 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
|
4602 * finish. */ |
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4603 if (clen != 0) |
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4604 reginput += clen; |
4682
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
4605 else if (go_to_nextline || (endp != NULL && REG_MULTI |
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
4606 && reglnum < endp->se_u.pos.lnum)) |
4515
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
4607 reg_nextline(); |
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
4608 else |
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
4609 break; |
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
4610 } |
4444 | 4611 |
4612 #ifdef ENABLE_LOG | |
4613 if (log_fd != stderr) | |
4614 fclose(log_fd); | |
4615 log_fd = NULL; | |
4616 #endif | |
4617 | |
4618 theend: | |
4619 /* Free memory */ | |
4620 vim_free(list[0].t); | |
4621 vim_free(list[1].t); | |
4622 vim_free(list[2].t); | |
4561
4d81fdda8f35
updated for version 7.3.1028
Bram Moolenaar <bram@vim.org>
parents:
4559
diff
changeset
|
4623 vim_free(listids); |
4444 | 4624 #undef ADD_POS_NEG_STATE |
4460 | 4625 #ifdef NFA_REGEXP_DEBUG_LOG |
4444 | 4626 fclose(debug); |
4627 #endif | |
4628 | |
4561
4d81fdda8f35
updated for version 7.3.1028
Bram Moolenaar <bram@vim.org>
parents:
4559
diff
changeset
|
4629 return nfa_match; |
4444 | 4630 } |
4631 | |
4632 /* | |
4633 * Try match of "prog" with at regline["col"]. | |
4634 * Returns 0 for failure, number of lines contained in the match otherwise. | |
4635 */ | |
4636 static long | |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4637 nfa_regtry(prog, col) |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4638 nfa_regprog_T *prog; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4639 colnr_T col; |
4444 | 4640 { |
4641 int i; | |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4642 regsubs_T subs, m; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4643 nfa_state_T *start = prog->start; |
4444 | 4644 #ifdef ENABLE_LOG |
4645 FILE *f; | |
4646 #endif | |
4647 | |
4648 reginput = regline + col; | |
4649 need_clear_subexpr = TRUE; | |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4650 #ifdef FEAT_SYN_HL |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4651 /* Clear the external match subpointers if necessary. */ |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4652 if (prog->reghasz == REX_SET) |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4653 need_clear_zsubexpr = TRUE; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4654 #endif |
4444 | 4655 |
4656 #ifdef ENABLE_LOG | |
4531
1be43c095aff
updated for version 7.3.1013
Bram Moolenaar <bram@vim.org>
parents:
4529
diff
changeset
|
4657 f = fopen(NFA_REGEXP_RUN_LOG, "a"); |
4444 | 4658 if (f != NULL) |
4659 { | |
4660 fprintf(f, "\n\n\n\n\n\n\t\t=======================================================\n"); | |
4661 fprintf(f, " =======================================================\n"); | |
4662 #ifdef DEBUG | |
4663 fprintf(f, "\tRegexp is \"%s\"\n", nfa_regengine.expr); | |
4664 #endif | |
4665 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
|
4666 fprintf(f, " =======================================================\n\n"); |
4533
6a2005efa02b
updated for version 7.3.1014
Bram Moolenaar <bram@vim.org>
parents:
4531
diff
changeset
|
4667 nfa_print_state(f, start); |
4444 | 4668 fprintf(f, "\n\n"); |
4669 fclose(f); | |
4670 } | |
4671 else | |
4672 EMSG(_("Could not open temporary log file for writing ")); | |
4673 #endif | |
4674 | |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4675 clear_sub(&subs.norm); |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4676 clear_sub(&m.norm); |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4677 #ifdef FEAT_SYN_HL |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4678 clear_sub(&subs.synt); |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4679 clear_sub(&m.synt); |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4680 #endif |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4681 |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4682 if (nfa_regmatch(start, &subs, &m, NULL) == FALSE) |
4444 | 4683 return 0; |
4684 | |
4685 cleanup_subexpr(); | |
4686 if (REG_MULTI) | |
4687 { | |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4688 for (i = 0; i < subs.norm.in_use; i++) |
4444 | 4689 { |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4690 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
|
4691 reg_endpos[i] = subs.norm.list.multi[i].end; |
4444 | 4692 } |
4693 | |
4694 if (reg_startpos[0].lnum < 0) | |
4695 { | |
4696 reg_startpos[0].lnum = 0; | |
4697 reg_startpos[0].col = col; | |
4698 } | |
4699 if (reg_endpos[0].lnum < 0) | |
4700 { | |
4569
f262fb02889d
updated for version 7.3.1032
Bram Moolenaar <bram@vim.org>
parents:
4567
diff
changeset
|
4701 /* pattern has a \ze but it didn't match, use current end */ |
4444 | 4702 reg_endpos[0].lnum = reglnum; |
4703 reg_endpos[0].col = (int)(reginput - regline); | |
4704 } | |
4705 else | |
4706 /* Use line number of "\ze". */ | |
4707 reglnum = reg_endpos[0].lnum; | |
4708 } | |
4709 else | |
4710 { | |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4711 for (i = 0; i < subs.norm.in_use; i++) |
4444 | 4712 { |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4713 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
|
4714 reg_endp[i] = subs.norm.list.line[i].end; |
4444 | 4715 } |
4716 | |
4717 if (reg_startp[0] == NULL) | |
4718 reg_startp[0] = regline + col; | |
4719 if (reg_endp[0] == NULL) | |
4720 reg_endp[0] = reginput; | |
4721 } | |
4722 | |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4723 #ifdef FEAT_SYN_HL |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4724 /* 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
|
4725 unref_extmatch(re_extmatch_out); |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4726 re_extmatch_out = NULL; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4727 |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4728 if (prog->reghasz == REX_SET) |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4729 { |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4730 int i; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4731 |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4732 cleanup_zsubexpr(); |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4733 re_extmatch_out = make_extmatch(); |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4734 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
|
4735 { |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4736 if (REG_MULTI) |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4737 { |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4738 struct multipos *mpos = &subs.synt.list.multi[i]; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4739 |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4740 /* Only accept single line matches. */ |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4741 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
|
4742 re_extmatch_out->matches[i] = |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4743 vim_strnsave(reg_getline(mpos->start.lnum) |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4744 + mpos->start.col, |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4745 mpos->end.col - mpos->start.col); |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4746 } |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4747 else |
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 struct linepos *lpos = &subs.synt.list.line[i]; |
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 if (lpos->start != NULL && lpos->end != NULL) |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4752 re_extmatch_out->matches[i] = |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4753 vim_strnsave(lpos->start, |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4754 (int)(lpos->end - lpos->start)); |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4755 } |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4756 } |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4757 } |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4758 #endif |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4759 |
4444 | 4760 return 1 + reglnum; |
4761 } | |
4762 | |
4763 /* | |
4764 * Match a regexp against a string ("line" points to the string) or multiple | |
4765 * lines ("line" is NULL, use reg_getline()). | |
4766 * | |
4767 * Returns 0 for failure, number of lines contained in the match otherwise. | |
4768 */ | |
4769 static long | |
4770 nfa_regexec_both(line, col) | |
4771 char_u *line; | |
4772 colnr_T col; /* column to start looking for match */ | |
4773 { | |
4774 nfa_regprog_T *prog; | |
4775 long retval = 0L; | |
4776 int i; | |
4777 | |
4778 if (REG_MULTI) | |
4779 { | |
4780 prog = (nfa_regprog_T *)reg_mmatch->regprog; | |
4781 line = reg_getline((linenr_T)0); /* relative to the cursor */ | |
4782 reg_startpos = reg_mmatch->startpos; | |
4783 reg_endpos = reg_mmatch->endpos; | |
4784 } | |
4785 else | |
4786 { | |
4787 prog = (nfa_regprog_T *)reg_match->regprog; | |
4788 reg_startp = reg_match->startp; | |
4789 reg_endp = reg_match->endp; | |
4790 } | |
4791 | |
4792 /* Be paranoid... */ | |
4793 if (prog == NULL || line == NULL) | |
4794 { | |
4795 EMSG(_(e_null)); | |
4796 goto theend; | |
4797 } | |
4798 | |
4799 /* If the start column is past the maximum column: no need to try. */ | |
4800 if (ireg_maxcol > 0 && col >= ireg_maxcol) | |
4801 goto theend; | |
4802 | |
4803 /* If pattern contains "\c" or "\C": overrule value of ireg_ic */ | |
4804 if (prog->regflags & RF_ICASE) | |
4805 ireg_ic = TRUE; | |
4806 else if (prog->regflags & RF_NOICASE) | |
4807 ireg_ic = FALSE; | |
4808 | |
4809 #ifdef FEAT_MBYTE | |
4810 /* If pattern contains "\Z" overrule value of ireg_icombine */ | |
4811 if (prog->regflags & RF_ICOMBINE) | |
4812 ireg_icombine = TRUE; | |
4813 #endif | |
4814 | |
4815 regline = line; | |
4816 reglnum = 0; /* relative to line */ | |
4817 | |
4553
7b835b2969af
updated for version 7.3.1024
Bram Moolenaar <bram@vim.org>
parents:
4551
diff
changeset
|
4818 nfa_has_zend = prog->has_zend; |
4647
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
4819 nfa_has_backref = prog->has_backref; |
4561
4d81fdda8f35
updated for version 7.3.1028
Bram Moolenaar <bram@vim.org>
parents:
4559
diff
changeset
|
4820 nfa_nsubexpr = prog->nsubexp; |
4690
9d97a0c045ef
updated for version 7.3.1092
Bram Moolenaar <bram@vim.org>
parents:
4688
diff
changeset
|
4821 #ifdef DEBUG |
9d97a0c045ef
updated for version 7.3.1092
Bram Moolenaar <bram@vim.org>
parents:
4688
diff
changeset
|
4822 nfa_regengine.expr = prog->pattern; |
9d97a0c045ef
updated for version 7.3.1092
Bram Moolenaar <bram@vim.org>
parents:
4688
diff
changeset
|
4823 #endif |
4553
7b835b2969af
updated for version 7.3.1024
Bram Moolenaar <bram@vim.org>
parents:
4551
diff
changeset
|
4824 |
4444 | 4825 nstate = prog->nstate; |
4826 for (i = 0; i < nstate; ++i) | |
4827 { | |
4828 prog->state[i].id = i; | |
4829 prog->state[i].lastlist = 0; | |
4830 } | |
4831 | |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4832 retval = nfa_regtry(prog, col); |
4444 | 4833 |
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 = NULL; |
9d97a0c045ef
updated for version 7.3.1092
Bram Moolenaar <bram@vim.org>
parents:
4688
diff
changeset
|
4836 #endif |
9d97a0c045ef
updated for version 7.3.1092
Bram Moolenaar <bram@vim.org>
parents:
4688
diff
changeset
|
4837 |
4444 | 4838 theend: |
4839 return retval; | |
4840 } | |
4841 | |
4842 /* | |
4843 * Compile a regular expression into internal code for the NFA matcher. | |
4844 * Returns the program in allocated space. Returns NULL for an error. | |
4845 */ | |
4846 static regprog_T * | |
4847 nfa_regcomp(expr, re_flags) | |
4848 char_u *expr; | |
4849 int re_flags; | |
4850 { | |
4541
80170d61a85c
updated for version 7.3.1018
Bram Moolenaar <bram@vim.org>
parents:
4539
diff
changeset
|
4851 nfa_regprog_T *prog = NULL; |
4458 | 4852 size_t prog_size; |
4444 | 4853 int *postfix; |
4854 | |
4855 if (expr == NULL) | |
4856 return NULL; | |
4857 | |
4858 #ifdef DEBUG | |
4859 nfa_regengine.expr = expr; | |
4860 #endif | |
4861 | |
4862 init_class_tab(); | |
4863 | |
4864 if (nfa_regcomp_start(expr, re_flags) == FAIL) | |
4865 return NULL; | |
4866 | |
4867 /* 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
|
4868 * (and count its size). */ |
4444 | 4869 postfix = re2post(); |
4870 if (postfix == NULL) | |
4555
b2946c06d1b6
updated for version 7.3.1025
Bram Moolenaar <bram@vim.org>
parents:
4553
diff
changeset
|
4871 { |
b2946c06d1b6
updated for version 7.3.1025
Bram Moolenaar <bram@vim.org>
parents:
4553
diff
changeset
|
4872 /* TODO: only give this error for debugging? */ |
b2946c06d1b6
updated for version 7.3.1025
Bram Moolenaar <bram@vim.org>
parents:
4553
diff
changeset
|
4873 if (post_ptr >= post_end) |
b2946c06d1b6
updated for version 7.3.1025
Bram Moolenaar <bram@vim.org>
parents:
4553
diff
changeset
|
4874 EMSGN("Internal error: estimated max number of states insufficient: %ld", post_end - post_start); |
4444 | 4875 goto fail; /* Cascaded (syntax?) error */ |
4555
b2946c06d1b6
updated for version 7.3.1025
Bram Moolenaar <bram@vim.org>
parents:
4553
diff
changeset
|
4876 } |
4444 | 4877 |
4878 /* | |
4879 * In order to build the NFA, we parse the input regexp twice: | |
4880 * 1. first pass to count size (so we can allocate space) | |
4881 * 2. second to emit code | |
4882 */ | |
4883 #ifdef ENABLE_LOG | |
4884 { | |
4531
1be43c095aff
updated for version 7.3.1013
Bram Moolenaar <bram@vim.org>
parents:
4529
diff
changeset
|
4885 FILE *f = fopen(NFA_REGEXP_RUN_LOG, "a"); |
4444 | 4886 |
4887 if (f != NULL) | |
4888 { | |
4889 fprintf(f, "\n*****************************\n\n\n\n\tCompiling regexp \"%s\" ... hold on !\n", expr); | |
4890 fclose(f); | |
4891 } | |
4892 } | |
4893 #endif | |
4894 | |
4895 /* | |
4896 * PASS 1 | |
4897 * Count number of NFA states in "nstate". Do not build the NFA. | |
4898 */ | |
4899 post2nfa(postfix, post_ptr, TRUE); | |
4541
80170d61a85c
updated for version 7.3.1018
Bram Moolenaar <bram@vim.org>
parents:
4539
diff
changeset
|
4900 |
80170d61a85c
updated for version 7.3.1018
Bram Moolenaar <bram@vim.org>
parents:
4539
diff
changeset
|
4901 /* Space for compiled regexp */ |
80170d61a85c
updated for version 7.3.1018
Bram Moolenaar <bram@vim.org>
parents:
4539
diff
changeset
|
4902 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
|
4903 prog = (nfa_regprog_T *)lalloc(prog_size, TRUE); |
80170d61a85c
updated for version 7.3.1018
Bram Moolenaar <bram@vim.org>
parents:
4539
diff
changeset
|
4904 if (prog == NULL) |
80170d61a85c
updated for version 7.3.1018
Bram Moolenaar <bram@vim.org>
parents:
4539
diff
changeset
|
4905 goto fail; |
80170d61a85c
updated for version 7.3.1018
Bram Moolenaar <bram@vim.org>
parents:
4539
diff
changeset
|
4906 vim_memset(prog, 0, prog_size); |
4444 | 4907 state_ptr = prog->state; |
4908 | |
4909 /* | |
4910 * PASS 2 | |
4911 * Build the NFA | |
4912 */ | |
4913 prog->start = post2nfa(postfix, post_ptr, FALSE); | |
4914 if (prog->start == NULL) | |
4915 goto fail; | |
4916 | |
4917 prog->regflags = regflags; | |
4918 prog->engine = &nfa_regengine; | |
4919 prog->nstate = nstate; | |
4553
7b835b2969af
updated for version 7.3.1024
Bram Moolenaar <bram@vim.org>
parents:
4551
diff
changeset
|
4920 prog->has_zend = nfa_has_zend; |
4647
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
4921 prog->has_backref = nfa_has_backref; |
4561
4d81fdda8f35
updated for version 7.3.1028
Bram Moolenaar <bram@vim.org>
parents:
4559
diff
changeset
|
4922 prog->nsubexp = regnpar; |
4444 | 4923 #ifdef ENABLE_LOG |
4924 nfa_postfix_dump(expr, OK); | |
4925 nfa_dump(prog); | |
4926 #endif | |
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4927 #ifdef FEAT_SYN_HL |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4928 /* 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
|
4929 prog->reghasz = re_has_z; |
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4930 #endif |
4690
9d97a0c045ef
updated for version 7.3.1092
Bram Moolenaar <bram@vim.org>
parents:
4688
diff
changeset
|
4931 #ifdef DEBUG |
9d97a0c045ef
updated for version 7.3.1092
Bram Moolenaar <bram@vim.org>
parents:
4688
diff
changeset
|
4932 prog->pattern = vim_strsave(expr); /* memory will leak */ |
9d97a0c045ef
updated for version 7.3.1092
Bram Moolenaar <bram@vim.org>
parents:
4688
diff
changeset
|
4933 nfa_regengine.expr = NULL; |
9d97a0c045ef
updated for version 7.3.1092
Bram Moolenaar <bram@vim.org>
parents:
4688
diff
changeset
|
4934 #endif |
4444 | 4935 |
4936 out: | |
4937 vim_free(post_start); | |
4938 post_start = post_ptr = post_end = NULL; | |
4939 state_ptr = NULL; | |
4940 return (regprog_T *)prog; | |
4941 | |
4942 fail: | |
4943 vim_free(prog); | |
4944 prog = NULL; | |
4945 #ifdef ENABLE_LOG | |
4946 nfa_postfix_dump(expr, FAIL); | |
4947 #endif | |
4948 #ifdef DEBUG | |
4949 nfa_regengine.expr = NULL; | |
4950 #endif | |
4951 goto out; | |
4952 } | |
4953 | |
4954 | |
4955 /* | |
4956 * Match a regexp against a string. | |
4957 * "rmp->regprog" is a compiled regexp as returned by nfa_regcomp(). | |
4958 * Uses curbuf for line count and 'iskeyword'. | |
4959 * | |
4960 * Return TRUE if there is a match, FALSE if not. | |
4961 */ | |
4962 static int | |
4963 nfa_regexec(rmp, line, col) | |
4964 regmatch_T *rmp; | |
4965 char_u *line; /* string to match against */ | |
4966 colnr_T col; /* column to start looking for match */ | |
4967 { | |
4968 reg_match = rmp; | |
4969 reg_mmatch = NULL; | |
4970 reg_maxline = 0; | |
4971 reg_line_lbr = FALSE; | |
4972 reg_buf = curbuf; | |
4973 reg_win = NULL; | |
4974 ireg_ic = rmp->rm_ic; | |
4975 #ifdef FEAT_MBYTE | |
4976 ireg_icombine = FALSE; | |
4977 #endif | |
4978 ireg_maxcol = 0; | |
4979 return (nfa_regexec_both(line, col) != 0); | |
4980 } | |
4981 | |
4982 #if defined(FEAT_MODIFY_FNAME) || defined(FEAT_EVAL) \ | |
4983 || defined(FIND_REPLACE_DIALOG) || defined(PROTO) | |
4984 | |
4985 static int nfa_regexec_nl __ARGS((regmatch_T *rmp, char_u *line, colnr_T col)); | |
4986 | |
4987 /* | |
4988 * Like nfa_regexec(), but consider a "\n" in "line" to be a line break. | |
4989 */ | |
4990 static int | |
4991 nfa_regexec_nl(rmp, line, col) | |
4992 regmatch_T *rmp; | |
4993 char_u *line; /* string to match against */ | |
4994 colnr_T col; /* column to start looking for match */ | |
4995 { | |
4996 reg_match = rmp; | |
4997 reg_mmatch = NULL; | |
4998 reg_maxline = 0; | |
4999 reg_line_lbr = TRUE; | |
5000 reg_buf = curbuf; | |
5001 reg_win = NULL; | |
5002 ireg_ic = rmp->rm_ic; | |
5003 #ifdef FEAT_MBYTE | |
5004 ireg_icombine = FALSE; | |
5005 #endif | |
5006 ireg_maxcol = 0; | |
5007 return (nfa_regexec_both(line, col) != 0); | |
5008 } | |
5009 #endif | |
5010 | |
5011 | |
5012 /* | |
5013 * Match a regexp against multiple lines. | |
5014 * "rmp->regprog" is a compiled regexp as returned by vim_regcomp(). | |
5015 * Uses curbuf for line count and 'iskeyword'. | |
5016 * | |
5017 * Return zero if there is no match. Return number of lines contained in the | |
5018 * match otherwise. | |
5019 * | |
5020 * Note: the body is the same as bt_regexec() except for nfa_regexec_both() | |
5021 * | |
5022 * ! Also NOTE : match may actually be in another line. e.g.: | |
5023 * when r.e. is \nc, cursor is at 'a' and the text buffer looks like | |
5024 * | |
5025 * +-------------------------+ | |
5026 * |a | | |
5027 * |b | | |
5028 * |c | | |
5029 * | | | |
5030 * +-------------------------+ | |
5031 * | |
5032 * then nfa_regexec_multi() returns 3. while the original | |
5033 * vim_regexec_multi() returns 0 and a second call at line 2 will return 2. | |
5034 * | |
5035 * FIXME if this behavior is not compatible. | |
5036 */ | |
5037 static long | |
5038 nfa_regexec_multi(rmp, win, buf, lnum, col, tm) | |
5039 regmmatch_T *rmp; | |
5040 win_T *win; /* window in which to search or NULL */ | |
5041 buf_T *buf; /* buffer in which to search */ | |
5042 linenr_T lnum; /* nr of line to start looking for match */ | |
5043 colnr_T col; /* column to start looking for match */ | |
5044 proftime_T *tm UNUSED; /* timeout limit or NULL */ | |
5045 { | |
5046 reg_match = NULL; | |
5047 reg_mmatch = rmp; | |
5048 reg_buf = buf; | |
5049 reg_win = win; | |
5050 reg_firstlnum = lnum; | |
5051 reg_maxline = reg_buf->b_ml.ml_line_count - lnum; | |
5052 reg_line_lbr = FALSE; | |
5053 ireg_ic = rmp->rmm_ic; | |
5054 #ifdef FEAT_MBYTE | |
5055 ireg_icombine = FALSE; | |
5056 #endif | |
5057 ireg_maxcol = rmp->rmm_maxcol; | |
5058 | |
4503 | 5059 return nfa_regexec_both(NULL, col); |
4444 | 5060 } |
5061 | |
5062 #ifdef DEBUG | |
5063 # undef ENABLE_LOG | |
5064 #endif |