Mercurial > vim
annotate src/regexp_nfa.c @ 4673:05d57d7c2d55 v7.3.1084
updated for version 7.3.1084
Problem: New regexp engine: only accepts up to \{,10}.
Solution: Remove upper limit. Remove dead code with NFA_PLUS.
| author | Bram Moolenaar <bram@vim.org> |
|---|---|
| date | Fri, 31 May 2013 23:18:00 +0200 |
| parents | b3c59716e700 |
| children | 811a4c9b51d8 |
| rev | line source |
|---|---|
| 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, | |
| 41 NFA_STAR, | |
| 42 NFA_QUEST, | |
| 43 NFA_QUEST_NONGREEDY, /* Non-greedy version of \? */ | |
| 44 NFA_NOT, /* used for [^ab] negated char ranges */ | |
| 45 | |
| 46 NFA_BOL, /* ^ Begin line */ | |
| 47 NFA_EOL, /* $ End line */ | |
| 48 NFA_BOW, /* \< Begin word */ | |
| 49 NFA_EOW, /* \> End word */ | |
| 50 NFA_BOF, /* \%^ Begin file */ | |
| 51 NFA_EOF, /* \%$ End file */ | |
| 52 NFA_NEWL, | |
| 53 NFA_ZSTART, /* Used for \zs */ | |
| 54 NFA_ZEND, /* Used for \ze */ | |
| 55 NFA_NOPEN, /* Start of subexpression marked with \%( */ | |
| 56 NFA_NCLOSE, /* End of subexpr. marked with \%( ... \) */ | |
| 57 NFA_START_INVISIBLE, | |
| 58 NFA_END_INVISIBLE, | |
| 59 NFA_COMPOSING, /* Next nodes in NFA are part of the | |
| 60 composing multibyte char */ | |
| 61 NFA_END_COMPOSING, /* End of a composing char in the NFA */ | |
| 62 | |
| 63 /* The following are used only in the postfix form, not in the NFA */ | |
| 64 NFA_PREV_ATOM_NO_WIDTH, /* Used for \@= */ | |
| 65 NFA_PREV_ATOM_NO_WIDTH_NEG, /* Used for \@! */ | |
| 66 NFA_PREV_ATOM_JUST_BEFORE, /* Used for \@<= */ | |
| 67 NFA_PREV_ATOM_JUST_BEFORE_NEG, /* Used for \@<! */ | |
| 68 NFA_PREV_ATOM_LIKE_PATTERN, /* Used for \@> */ | |
| 69 | |
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70 NFA_BACKREF1, /* \1 */ |
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71 NFA_BACKREF2, /* \2 */ |
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72 NFA_BACKREF3, /* \3 */ |
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73 NFA_BACKREF4, /* \4 */ |
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74 NFA_BACKREF5, /* \5 */ |
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75 NFA_BACKREF6, /* \6 */ |
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76 NFA_BACKREF7, /* \7 */ |
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77 NFA_BACKREF8, /* \8 */ |
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78 NFA_BACKREF9, /* \9 */ |
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79 NFA_SKIP, /* Skip characters */ |
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80 |
| 4444 | 81 NFA_MOPEN, |
| 82 NFA_MCLOSE = NFA_MOPEN + NSUBEXP, | |
| 83 | |
| 84 /* NFA_FIRST_NL */ | |
| 85 NFA_ANY = NFA_MCLOSE + NSUBEXP, /* Match any one character. */ | |
| 86 NFA_ANYOF, /* Match any character in this string. */ | |
| 87 NFA_ANYBUT, /* Match any character not in this string. */ | |
| 88 NFA_IDENT, /* Match identifier char */ | |
| 89 NFA_SIDENT, /* Match identifier char but no digit */ | |
| 90 NFA_KWORD, /* Match keyword char */ | |
| 91 NFA_SKWORD, /* Match word char but no digit */ | |
| 92 NFA_FNAME, /* Match file name char */ | |
| 93 NFA_SFNAME, /* Match file name char but no digit */ | |
| 94 NFA_PRINT, /* Match printable char */ | |
| 95 NFA_SPRINT, /* Match printable char but no digit */ | |
| 96 NFA_WHITE, /* Match whitespace char */ | |
| 97 NFA_NWHITE, /* Match non-whitespace char */ | |
| 98 NFA_DIGIT, /* Match digit char */ | |
| 99 NFA_NDIGIT, /* Match non-digit char */ | |
| 100 NFA_HEX, /* Match hex char */ | |
| 101 NFA_NHEX, /* Match non-hex char */ | |
| 102 NFA_OCTAL, /* Match octal char */ | |
| 103 NFA_NOCTAL, /* Match non-octal char */ | |
| 104 NFA_WORD, /* Match word char */ | |
| 105 NFA_NWORD, /* Match non-word char */ | |
| 106 NFA_HEAD, /* Match head char */ | |
| 107 NFA_NHEAD, /* Match non-head char */ | |
| 108 NFA_ALPHA, /* Match alpha char */ | |
| 109 NFA_NALPHA, /* Match non-alpha char */ | |
| 110 NFA_LOWER, /* Match lowercase char */ | |
| 111 NFA_NLOWER, /* Match non-lowercase char */ | |
| 112 NFA_UPPER, /* Match uppercase char */ | |
| 113 NFA_NUPPER, /* Match non-uppercase char */ | |
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114 |
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115 NFA_CURSOR, /* Match cursor pos */ |
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116 NFA_LNUM, /* Match line number */ |
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117 NFA_LNUM_GT, /* Match > line number */ |
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118 NFA_LNUM_LT, /* Match < line number */ |
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119 NFA_COL, /* Match cursor column */ |
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120 NFA_COL_GT, /* Match > cursor column */ |
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121 NFA_COL_LT, /* Match < cursor column */ |
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122 NFA_VCOL, /* Match cursor virtual column */ |
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123 NFA_VCOL_GT, /* Match > cursor virtual column */ |
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124 NFA_VCOL_LT, /* Match < cursor virtual column */ |
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125 |
| 4444 | 126 NFA_FIRST_NL = NFA_ANY + ADD_NL, |
| 127 NFA_LAST_NL = NFA_NUPPER + ADD_NL, | |
| 128 | |
| 129 /* Character classes [:alnum:] etc */ | |
| 130 NFA_CLASS_ALNUM, | |
| 131 NFA_CLASS_ALPHA, | |
| 132 NFA_CLASS_BLANK, | |
| 133 NFA_CLASS_CNTRL, | |
| 134 NFA_CLASS_DIGIT, | |
| 135 NFA_CLASS_GRAPH, | |
| 136 NFA_CLASS_LOWER, | |
| 137 NFA_CLASS_PRINT, | |
| 138 NFA_CLASS_PUNCT, | |
| 139 NFA_CLASS_SPACE, | |
| 140 NFA_CLASS_UPPER, | |
| 141 NFA_CLASS_XDIGIT, | |
| 142 NFA_CLASS_TAB, | |
| 143 NFA_CLASS_RETURN, | |
| 144 NFA_CLASS_BACKSPACE, | |
| 145 NFA_CLASS_ESCAPE | |
| 146 }; | |
| 147 | |
| 148 /* Keep in sync with classchars. */ | |
| 149 static int nfa_classcodes[] = { | |
| 150 NFA_ANY, NFA_IDENT, NFA_SIDENT, NFA_KWORD,NFA_SKWORD, | |
| 151 NFA_FNAME, NFA_SFNAME, NFA_PRINT, NFA_SPRINT, | |
| 152 NFA_WHITE, NFA_NWHITE, NFA_DIGIT, NFA_NDIGIT, | |
| 153 NFA_HEX, NFA_NHEX, NFA_OCTAL, NFA_NOCTAL, | |
| 154 NFA_WORD, NFA_NWORD, NFA_HEAD, NFA_NHEAD, | |
| 155 NFA_ALPHA, NFA_NALPHA, NFA_LOWER, NFA_NLOWER, | |
| 156 NFA_UPPER, NFA_NUPPER | |
| 157 }; | |
| 158 | |
| 159 static char_u e_misplaced[] = N_("E866: (NFA regexp) Misplaced %c"); | |
| 160 | |
| 161 /* | |
| 162 * NFA errors can be of 3 types: | |
| 163 * *** NFA runtime errors, when something unknown goes wrong. The NFA fails | |
| 164 * silently and revert the to backtracking engine. | |
| 165 * syntax_error = FALSE; | |
| 166 * *** Regexp syntax errors, when the input regexp is not syntactically correct. | |
| 167 * The NFA engine displays an error message, and nothing else happens. | |
| 168 * syntax_error = TRUE | |
| 169 * *** Unsupported features, when the input regexp uses an operator that is not | |
| 170 * implemented in the NFA. The NFA engine fails silently, and reverts to the | |
| 171 * old backtracking engine. | |
| 172 * syntax_error = FALSE | |
| 173 * "The NFA fails" means that "compiling the regexp with the NFA fails": | |
| 174 * nfa_regcomp() returns FAIL. | |
| 175 */ | |
| 176 static int syntax_error = FALSE; | |
| 177 | |
| 178 /* NFA regexp \ze operator encountered. */ | |
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179 static int nfa_has_zend; |
| 4444 | 180 |
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181 /* NFA regexp \1 .. \9 encountered. */ |
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182 static int nfa_has_backref; |
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183 |
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184 /* Number of sub expressions actually being used during execution. 1 if only |
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185 * the whole match (subexpr 0) is used. */ |
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186 static int nfa_nsubexpr; |
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187 |
| 4444 | 188 static int *post_start; /* holds the postfix form of r.e. */ |
| 189 static int *post_end; | |
| 190 static int *post_ptr; | |
| 191 | |
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192 static int nstate; /* Number of states in the NFA. Also used when |
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193 * executing. */ |
| 4444 | 194 static int istate; /* Index in the state vector, used in new_state() */ |
| 195 | |
| 196 | |
| 197 static int nfa_regcomp_start __ARGS((char_u*expr, int re_flags)); | |
| 198 static int nfa_recognize_char_class __ARGS((char_u *start, char_u *end, int extra_newl)); | |
| 199 static int nfa_emit_equi_class __ARGS((int c, int neg)); | |
| 200 static int nfa_regatom __ARGS((void)); | |
| 201 static int nfa_regpiece __ARGS((void)); | |
| 202 static int nfa_regconcat __ARGS((void)); | |
| 203 static int nfa_regbranch __ARGS((void)); | |
| 204 static int nfa_reg __ARGS((int paren)); | |
| 205 #ifdef DEBUG | |
| 206 static void nfa_set_code __ARGS((int c)); | |
| 207 static void nfa_postfix_dump __ARGS((char_u *expr, int retval)); | |
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208 static void nfa_print_state __ARGS((FILE *debugf, nfa_state_T *state)); |
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209 static void nfa_print_state2 __ARGS((FILE *debugf, nfa_state_T *state, garray_T *indent)); |
| 4444 | 210 static void nfa_dump __ARGS((nfa_regprog_T *prog)); |
| 211 #endif | |
| 212 static int *re2post __ARGS((void)); | |
| 213 static nfa_state_T *new_state __ARGS((int c, nfa_state_T *out, nfa_state_T *out1)); | |
| 214 static nfa_state_T *post2nfa __ARGS((int *postfix, int *end, int nfa_calc_size)); | |
| 215 static int check_char_class __ARGS((int class, int c)); | |
| 216 static void st_error __ARGS((int *postfix, int *end, int *p)); | |
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217 static void nfa_set_neg_listids __ARGS((nfa_state_T *start)); |
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218 static void nfa_set_null_listids __ARGS((nfa_state_T *start)); |
| 4444 | 219 static void nfa_save_listids __ARGS((nfa_state_T *start, int *list)); |
| 220 static void nfa_restore_listids __ARGS((nfa_state_T *start, int *list)); | |
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221 static int nfa_re_num_cmp __ARGS((long_u val, int op, long_u pos)); |
| 4444 | 222 static long nfa_regtry __ARGS((nfa_state_T *start, colnr_T col)); |
| 223 static long nfa_regexec_both __ARGS((char_u *line, colnr_T col)); | |
| 224 static regprog_T *nfa_regcomp __ARGS((char_u *expr, int re_flags)); | |
| 225 static int nfa_regexec __ARGS((regmatch_T *rmp, char_u *line, colnr_T col)); | |
| 226 static long nfa_regexec_multi __ARGS((regmmatch_T *rmp, win_T *win, buf_T *buf, linenr_T lnum, colnr_T col, proftime_T *tm)); | |
| 227 | |
| 228 /* helper functions used when doing re2post() ... regatom() parsing */ | |
| 229 #define EMIT(c) do { \ | |
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230 if (post_ptr >= post_end && realloc_post_list() == FAIL) \ |
| 4444 | 231 return FAIL; \ |
| 232 *post_ptr++ = c; \ | |
| 233 } while (0) | |
| 234 | |
| 235 /* | |
| 236 * Initialize internal variables before NFA compilation. | |
| 237 * Return OK on success, FAIL otherwise. | |
| 238 */ | |
| 239 static int | |
| 240 nfa_regcomp_start(expr, re_flags) | |
| 241 char_u *expr; | |
| 242 int re_flags; /* see vim_regcomp() */ | |
| 243 { | |
| 4458 | 244 size_t postfix_size; |
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245 int nstate_max; |
| 4444 | 246 |
| 247 nstate = 0; | |
| 248 istate = 0; | |
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249 /* A reasonable estimation for maximum size */ |
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250 nstate_max = (int)(STRLEN(expr) + 1) * 25; |
| 4444 | 251 |
| 4454 | 252 /* Some items blow up in size, such as [A-z]. Add more space for that. |
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253 * When it is still not enough realloc_post_list() will be used. */ |
| 4458 | 254 nstate_max += 1000; |
| 4454 | 255 |
| 256 /* Size for postfix representation of expr. */ | |
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257 postfix_size = sizeof(int) * nstate_max; |
| 4454 | 258 |
| 4444 | 259 post_start = (int *)lalloc(postfix_size, TRUE); |
| 260 if (post_start == NULL) | |
| 261 return FAIL; | |
| 262 vim_memset(post_start, 0, postfix_size); | |
| 263 post_ptr = post_start; | |
| 4454 | 264 post_end = post_start + nstate_max; |
| 4444 | 265 nfa_has_zend = FALSE; |
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266 nfa_has_backref = FALSE; |
| 4444 | 267 |
| 268 regcomp_start(expr, re_flags); | |
| 269 | |
| 270 return OK; | |
| 271 } | |
| 272 | |
| 273 /* | |
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274 * Allocate more space for post_start. Called when |
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275 * running above the estimated number of states. |
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276 */ |
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277 static int |
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278 realloc_post_list() |
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279 { |
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280 int nstate_max = (int)(post_end - post_start); |
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281 int new_max = nstate_max + 1000; |
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282 int *new_start; |
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283 int *old_start; |
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284 |
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285 new_start = (int *)lalloc(new_max * sizeof(int), TRUE); |
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286 if (new_start == NULL) |
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287 return FAIL; |
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288 mch_memmove(new_start, post_start, nstate_max * sizeof(int)); |
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289 vim_memset(new_start + nstate_max, 0, 1000 * sizeof(int)); |
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290 old_start = post_start; |
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291 post_start = new_start; |
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292 post_ptr = new_start + (post_ptr - old_start); |
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293 post_end = post_start + new_max; |
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294 vim_free(old_start); |
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295 return OK; |
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296 } |
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297 |
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298 /* |
| 4444 | 299 * Search between "start" and "end" and try to recognize a |
| 300 * character class in expanded form. For example [0-9]. | |
| 301 * On success, return the id the character class to be emitted. | |
| 302 * On failure, return 0 (=FAIL) | |
| 303 * Start points to the first char of the range, while end should point | |
| 304 * to the closing brace. | |
| 305 */ | |
| 306 static int | |
| 307 nfa_recognize_char_class(start, end, extra_newl) | |
| 308 char_u *start; | |
| 309 char_u *end; | |
| 310 int extra_newl; | |
| 311 { | |
| 312 int i; | |
| 313 /* Each of these variables takes up a char in "config[]", | |
| 314 * in the order they are here. */ | |
| 315 int not = FALSE, af = FALSE, AF = FALSE, az = FALSE, AZ = FALSE, | |
| 316 o7 = FALSE, o9 = FALSE, underscore = FALSE, newl = FALSE; | |
| 317 char_u *p; | |
| 318 #define NCONFIGS 16 | |
| 319 int classid[NCONFIGS] = { | |
| 320 NFA_DIGIT, NFA_NDIGIT, NFA_HEX, NFA_NHEX, | |
| 321 NFA_OCTAL, NFA_NOCTAL, NFA_WORD, NFA_NWORD, | |
| 322 NFA_HEAD, NFA_NHEAD, NFA_ALPHA, NFA_NALPHA, | |
| 323 NFA_LOWER, NFA_NLOWER, NFA_UPPER, NFA_NUPPER | |
| 324 }; | |
| 4450 | 325 char_u myconfig[10]; |
| 4444 | 326 char_u config[NCONFIGS][9] = { |
| 327 "000000100", /* digit */ | |
| 328 "100000100", /* non digit */ | |
| 329 "011000100", /* hex-digit */ | |
| 330 "111000100", /* non hex-digit */ | |
| 331 "000001000", /* octal-digit */ | |
| 332 "100001000", /* [^0-7] */ | |
| 333 "000110110", /* [0-9A-Za-z_] */ | |
| 334 "100110110", /* [^0-9A-Za-z_] */ | |
| 335 "000110010", /* head of word */ | |
| 336 "100110010", /* not head of word */ | |
| 337 "000110000", /* alphabetic char a-z */ | |
| 338 "100110000", /* non alphabetic char */ | |
| 339 "000100000", /* lowercase letter */ | |
| 340 "100100000", /* non lowercase */ | |
| 341 "000010000", /* uppercase */ | |
| 342 "100010000" /* non uppercase */ | |
| 343 }; | |
| 344 | |
| 345 if (extra_newl == TRUE) | |
| 346 newl = TRUE; | |
| 347 | |
| 348 if (*end != ']') | |
| 349 return FAIL; | |
| 350 p = start; | |
| 351 if (*p == '^') | |
| 352 { | |
| 353 not = TRUE; | |
| 354 p ++; | |
| 355 } | |
| 356 | |
| 357 while (p < end) | |
| 358 { | |
| 359 if (p + 2 < end && *(p + 1) == '-') | |
| 360 { | |
| 361 switch (*p) | |
| 362 { | |
| 363 case '0': | |
| 364 if (*(p + 2) == '9') | |
| 365 { | |
| 366 o9 = TRUE; | |
| 367 break; | |
| 368 } | |
| 369 else | |
| 370 if (*(p + 2) == '7') | |
| 371 { | |
| 372 o7 = TRUE; | |
| 373 break; | |
| 374 } | |
| 375 case 'a': | |
| 376 if (*(p + 2) == 'z') | |
| 377 { | |
| 378 az = TRUE; | |
| 379 break; | |
| 380 } | |
| 381 else | |
| 382 if (*(p + 2) == 'f') | |
| 383 { | |
| 384 af = TRUE; | |
| 385 break; | |
| 386 } | |
| 387 case 'A': | |
| 388 if (*(p + 2) == 'Z') | |
| 389 { | |
| 390 AZ = TRUE; | |
| 391 break; | |
| 392 } | |
| 393 else | |
| 394 if (*(p + 2) == 'F') | |
| 395 { | |
| 396 AF = TRUE; | |
| 397 break; | |
| 398 } | |
| 399 /* FALLTHROUGH */ | |
| 400 default: | |
| 401 return FAIL; | |
| 402 } | |
| 403 p += 3; | |
| 404 } | |
| 405 else if (p + 1 < end && *p == '\\' && *(p + 1) == 'n') | |
| 406 { | |
| 407 newl = TRUE; | |
| 408 p += 2; | |
| 409 } | |
| 410 else if (*p == '_') | |
| 411 { | |
| 412 underscore = TRUE; | |
| 413 p ++; | |
| 414 } | |
| 415 else if (*p == '\n') | |
| 416 { | |
| 417 newl = TRUE; | |
| 418 p ++; | |
| 419 } | |
| 420 else | |
| 421 return FAIL; | |
| 422 } /* while (p < end) */ | |
| 423 | |
| 424 if (p != end) | |
| 425 return FAIL; | |
| 426 | |
| 427 /* build the config that represents the ranges we gathered */ | |
| 428 STRCPY(myconfig, "000000000"); | |
| 429 if (not == TRUE) | |
| 430 myconfig[0] = '1'; | |
| 431 if (af == TRUE) | |
| 432 myconfig[1] = '1'; | |
| 433 if (AF == TRUE) | |
| 434 myconfig[2] = '1'; | |
| 435 if (az == TRUE) | |
| 436 myconfig[3] = '1'; | |
| 437 if (AZ == TRUE) | |
| 438 myconfig[4] = '1'; | |
| 439 if (o7 == TRUE) | |
| 440 myconfig[5] = '1'; | |
| 441 if (o9 == TRUE) | |
| 442 myconfig[6] = '1'; | |
| 443 if (underscore == TRUE) | |
| 444 myconfig[7] = '1'; | |
| 445 if (newl == TRUE) | |
| 446 { | |
| 447 myconfig[8] = '1'; | |
| 448 extra_newl = ADD_NL; | |
| 449 } | |
| 450 /* try to recognize character classes */ | |
| 451 for (i = 0; i < NCONFIGS; i++) | |
| 4450 | 452 if (STRNCMP(myconfig, config[i], 8) == 0) |
| 4444 | 453 return classid[i] + extra_newl; |
| 454 | |
| 455 /* fallthrough => no success so far */ | |
| 456 return FAIL; | |
| 457 | |
| 458 #undef NCONFIGS | |
| 459 } | |
| 460 | |
| 461 /* | |
| 462 * Produce the bytes for equivalence class "c". | |
| 463 * Currently only handles latin1, latin9 and utf-8. | |
| 464 * Emits bytes in postfix notation: 'a,b,NFA_OR,c,NFA_OR' is | |
| 465 * equivalent to 'a OR b OR c' | |
| 466 * | |
| 467 * NOTE! When changing this function, also update reg_equi_class() | |
| 468 */ | |
| 469 static int | |
| 470 nfa_emit_equi_class(c, neg) | |
| 471 int c; | |
| 472 int neg; | |
| 473 { | |
| 474 int first = TRUE; | |
| 475 int glue = neg == TRUE ? NFA_CONCAT : NFA_OR; | |
| 476 #define EMIT2(c) \ | |
| 477 EMIT(c); \ | |
| 478 if (neg == TRUE) { \ | |
| 479 EMIT(NFA_NOT); \ | |
| 480 } \ | |
| 481 if (first == FALSE) \ | |
| 482 EMIT(glue); \ | |
| 483 else \ | |
| 484 first = FALSE; \ | |
| 485 | |
| 486 #ifdef FEAT_MBYTE | |
| 487 if (enc_utf8 || STRCMP(p_enc, "latin1") == 0 | |
| 488 || STRCMP(p_enc, "iso-8859-15") == 0) | |
| 489 #endif | |
| 490 { | |
| 491 switch (c) | |
| 492 { | |
| 493 case 'A': case '\300': case '\301': case '\302': | |
| 494 case '\303': case '\304': case '\305': | |
| 495 EMIT2('A'); EMIT2('\300'); EMIT2('\301'); | |
| 496 EMIT2('\302'); EMIT2('\303'); EMIT2('\304'); | |
| 497 EMIT2('\305'); | |
| 498 return OK; | |
| 499 | |
| 500 case 'C': case '\307': | |
| 501 EMIT2('C'); EMIT2('\307'); | |
| 502 return OK; | |
| 503 | |
| 504 case 'E': case '\310': case '\311': case '\312': case '\313': | |
| 505 EMIT2('E'); EMIT2('\310'); EMIT2('\311'); | |
| 506 EMIT2('\312'); EMIT2('\313'); | |
| 507 return OK; | |
| 508 | |
| 509 case 'I': case '\314': case '\315': case '\316': case '\317': | |
| 510 EMIT2('I'); EMIT2('\314'); EMIT2('\315'); | |
| 511 EMIT2('\316'); EMIT2('\317'); | |
| 512 return OK; | |
| 513 | |
| 514 case 'N': case '\321': | |
| 515 EMIT2('N'); EMIT2('\321'); | |
| 516 return OK; | |
| 517 | |
| 518 case 'O': case '\322': case '\323': case '\324': case '\325': | |
| 519 case '\326': | |
| 520 EMIT2('O'); EMIT2('\322'); EMIT2('\323'); | |
| 521 EMIT2('\324'); EMIT2('\325'); EMIT2('\326'); | |
| 522 return OK; | |
| 523 | |
| 524 case 'U': case '\331': case '\332': case '\333': case '\334': | |
| 525 EMIT2('U'); EMIT2('\331'); EMIT2('\332'); | |
| 526 EMIT2('\333'); EMIT2('\334'); | |
| 527 return OK; | |
| 528 | |
| 529 case 'Y': case '\335': | |
| 530 EMIT2('Y'); EMIT2('\335'); | |
| 531 return OK; | |
| 532 | |
| 533 case 'a': case '\340': case '\341': case '\342': | |
| 534 case '\343': case '\344': case '\345': | |
| 535 EMIT2('a'); EMIT2('\340'); EMIT2('\341'); | |
| 536 EMIT2('\342'); EMIT2('\343'); EMIT2('\344'); | |
| 537 EMIT2('\345'); | |
| 538 return OK; | |
| 539 | |
| 540 case 'c': case '\347': | |
| 541 EMIT2('c'); EMIT2('\347'); | |
| 542 return OK; | |
| 543 | |
| 544 case 'e': case '\350': case '\351': case '\352': case '\353': | |
| 545 EMIT2('e'); EMIT2('\350'); EMIT2('\351'); | |
| 546 EMIT2('\352'); EMIT2('\353'); | |
| 547 return OK; | |
| 548 | |
| 549 case 'i': case '\354': case '\355': case '\356': case '\357': | |
| 550 EMIT2('i'); EMIT2('\354'); EMIT2('\355'); | |
| 551 EMIT2('\356'); EMIT2('\357'); | |
| 552 return OK; | |
| 553 | |
| 554 case 'n': case '\361': | |
| 555 EMIT2('n'); EMIT2('\361'); | |
| 556 return OK; | |
| 557 | |
| 558 case 'o': case '\362': case '\363': case '\364': case '\365': | |
| 559 case '\366': | |
| 560 EMIT2('o'); EMIT2('\362'); EMIT2('\363'); | |
| 561 EMIT2('\364'); EMIT2('\365'); EMIT2('\366'); | |
| 562 return OK; | |
| 563 | |
| 564 case 'u': case '\371': case '\372': case '\373': case '\374': | |
| 565 EMIT2('u'); EMIT2('\371'); EMIT2('\372'); | |
| 566 EMIT2('\373'); EMIT2('\374'); | |
| 567 return OK; | |
| 568 | |
| 569 case 'y': case '\375': case '\377': | |
| 570 EMIT2('y'); EMIT2('\375'); EMIT2('\377'); | |
| 571 return OK; | |
| 572 | |
| 573 default: | |
| 574 return FAIL; | |
| 575 } | |
| 576 } | |
| 577 | |
| 578 EMIT(c); | |
| 579 return OK; | |
| 580 #undef EMIT2 | |
| 581 } | |
| 582 | |
| 583 /* | |
| 584 * Code to parse regular expression. | |
| 585 * | |
| 586 * We try to reuse parsing functions in regexp.c to | |
| 587 * minimize surprise and keep the syntax consistent. | |
| 588 */ | |
| 589 | |
| 590 /* | |
| 591 * Parse the lowest level. | |
| 592 * | |
| 593 * An atom can be one of a long list of items. Many atoms match one character | |
| 594 * in the text. It is often an ordinary character or a character class. | |
| 595 * Braces can be used to make a pattern into an atom. The "\z(\)" construct | |
| 596 * is only for syntax highlighting. | |
| 597 * | |
| 598 * atom ::= ordinary-atom | |
| 599 * or \( pattern \) | |
| 600 * or \%( pattern \) | |
| 601 * or \z( pattern \) | |
| 602 */ | |
| 603 static int | |
| 604 nfa_regatom() | |
| 605 { | |
| 606 int c; | |
| 607 int charclass; | |
| 608 int equiclass; | |
| 609 int collclass; | |
| 610 int got_coll_char; | |
| 611 char_u *p; | |
| 612 char_u *endp; | |
| 613 #ifdef FEAT_MBYTE | |
| 614 char_u *old_regparse = regparse; | |
| 615 #endif | |
| 616 int extra = 0; | |
| 617 int first; | |
| 618 int emit_range; | |
| 619 int negated; | |
| 620 int result; | |
| 621 int startc = -1; | |
| 622 int endc = -1; | |
| 623 int oldstartc = -1; | |
| 624 int cpo_lit; /* 'cpoptions' contains 'l' flag */ | |
| 625 int cpo_bsl; /* 'cpoptions' contains '\' flag */ | |
| 626 int glue; /* ID that will "glue" nodes together */ | |
| 627 | |
| 628 cpo_lit = vim_strchr(p_cpo, CPO_LITERAL) != NULL; | |
| 629 cpo_bsl = vim_strchr(p_cpo, CPO_BACKSL) != NULL; | |
| 630 | |
| 631 c = getchr(); | |
| 632 switch (c) | |
| 633 { | |
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634 case NUL: |
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635 syntax_error = TRUE; |
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636 EMSG_RET_FAIL(_("E865: (NFA) Regexp end encountered prematurely")); |
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637 |
| 4444 | 638 case Magic('^'): |
| 639 EMIT(NFA_BOL); | |
| 640 break; | |
| 641 | |
| 642 case Magic('$'): | |
| 643 EMIT(NFA_EOL); | |
| 644 #if defined(FEAT_SYN_HL) || defined(PROTO) | |
| 645 had_eol = TRUE; | |
| 646 #endif | |
| 647 break; | |
| 648 | |
| 649 case Magic('<'): | |
| 650 EMIT(NFA_BOW); | |
| 651 break; | |
| 652 | |
| 653 case Magic('>'): | |
| 654 EMIT(NFA_EOW); | |
| 655 break; | |
| 656 | |
| 657 case Magic('_'): | |
| 658 c = no_Magic(getchr()); | |
| 659 if (c == '^') /* "\_^" is start-of-line */ | |
| 660 { | |
| 661 EMIT(NFA_BOL); | |
| 662 break; | |
| 663 } | |
| 664 if (c == '$') /* "\_$" is end-of-line */ | |
| 665 { | |
| 666 EMIT(NFA_EOL); | |
| 667 #if defined(FEAT_SYN_HL) || defined(PROTO) | |
| 668 had_eol = TRUE; | |
| 669 #endif | |
| 670 break; | |
| 671 } | |
| 672 | |
| 673 extra = ADD_NL; | |
| 674 | |
| 675 /* "\_[" is collection plus newline */ | |
| 676 if (c == '[') | |
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677 goto collection; |
| 4444 | 678 |
| 679 /* "\_x" is character class plus newline */ | |
| 680 /*FALLTHROUGH*/ | |
| 681 | |
| 682 /* | |
| 683 * Character classes. | |
| 684 */ | |
| 685 case Magic('.'): | |
| 686 case Magic('i'): | |
| 687 case Magic('I'): | |
| 688 case Magic('k'): | |
| 689 case Magic('K'): | |
| 690 case Magic('f'): | |
| 691 case Magic('F'): | |
| 692 case Magic('p'): | |
| 693 case Magic('P'): | |
| 694 case Magic('s'): | |
| 695 case Magic('S'): | |
| 696 case Magic('d'): | |
| 697 case Magic('D'): | |
| 698 case Magic('x'): | |
| 699 case Magic('X'): | |
| 700 case Magic('o'): | |
| 701 case Magic('O'): | |
| 702 case Magic('w'): | |
| 703 case Magic('W'): | |
| 704 case Magic('h'): | |
| 705 case Magic('H'): | |
| 706 case Magic('a'): | |
| 707 case Magic('A'): | |
| 708 case Magic('l'): | |
| 709 case Magic('L'): | |
| 710 case Magic('u'): | |
| 711 case Magic('U'): | |
| 712 p = vim_strchr(classchars, no_Magic(c)); | |
| 713 if (p == NULL) | |
| 714 { | |
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715 EMSGN("INTERNAL: Unknown character class char: %ld", c); |
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716 return FAIL; |
| 4444 | 717 } |
| 718 #ifdef FEAT_MBYTE | |
| 719 /* When '.' is followed by a composing char ignore the dot, so that | |
| 720 * the composing char is matched here. */ | |
| 721 if (enc_utf8 && c == Magic('.') && utf_iscomposing(peekchr())) | |
| 722 { | |
|
4535
45f97c349537
updated for version 7.3.1015
Bram Moolenaar <bram@vim.org>
parents:
4533
diff
changeset
|
723 old_regparse = regparse; |
| 4444 | 724 c = getchr(); |
| 725 goto nfa_do_multibyte; | |
| 726 } | |
| 727 #endif | |
| 728 EMIT(nfa_classcodes[p - classchars]); | |
| 729 if (extra == ADD_NL) | |
| 730 { | |
| 731 EMIT(NFA_NEWL); | |
| 732 EMIT(NFA_OR); | |
| 733 regflags |= RF_HASNL; | |
| 734 } | |
| 735 break; | |
| 736 | |
| 737 case Magic('n'): | |
| 738 if (reg_string) | |
| 739 /* In a string "\n" matches a newline character. */ | |
| 740 EMIT(NL); | |
| 741 else | |
| 742 { | |
| 743 /* In buffer text "\n" matches the end of a line. */ | |
| 744 EMIT(NFA_NEWL); | |
| 745 regflags |= RF_HASNL; | |
| 746 } | |
| 747 break; | |
| 748 | |
| 749 case Magic('('): | |
| 750 if (nfa_reg(REG_PAREN) == FAIL) | |
| 751 return FAIL; /* cascaded error */ | |
| 752 break; | |
| 753 | |
| 754 case Magic('|'): | |
| 755 case Magic('&'): | |
| 756 case Magic(')'): | |
| 757 syntax_error = TRUE; | |
| 4450 | 758 EMSGN(_(e_misplaced), no_Magic(c)); |
| 4444 | 759 return FAIL; |
| 760 | |
| 761 case Magic('='): | |
| 762 case Magic('?'): | |
| 763 case Magic('+'): | |
| 764 case Magic('@'): | |
| 765 case Magic('*'): | |
| 766 case Magic('{'): | |
| 767 /* these should follow an atom, not form an atom */ | |
| 768 syntax_error = TRUE; | |
| 4450 | 769 EMSGN(_(e_misplaced), no_Magic(c)); |
| 4444 | 770 return FAIL; |
| 771 | |
| 772 case Magic('~'): /* previous substitute pattern */ | |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
773 /* TODO: Not supported yet */ |
| 4444 | 774 return FAIL; |
| 775 | |
|
4647
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
776 case Magic('1'): |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
777 case Magic('2'): |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
778 case Magic('3'): |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
779 case Magic('4'): |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
780 case Magic('5'): |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
781 case Magic('6'): |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
782 case Magic('7'): |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
783 case Magic('8'): |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
784 case Magic('9'): |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
785 EMIT(NFA_BACKREF1 + (no_Magic(c) - '1')); |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
786 nfa_has_backref = TRUE; |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
787 break; |
| 4444 | 788 |
| 789 case Magic('z'): | |
| 790 c = no_Magic(getchr()); | |
| 791 switch (c) | |
| 792 { | |
| 793 case 's': | |
| 794 EMIT(NFA_ZSTART); | |
| 795 break; | |
| 796 case 'e': | |
| 797 EMIT(NFA_ZEND); | |
| 798 nfa_has_zend = TRUE; | |
|
4569
f262fb02889d
updated for version 7.3.1032
Bram Moolenaar <bram@vim.org>
parents:
4567
diff
changeset
|
799 break; |
| 4444 | 800 case '1': |
| 801 case '2': | |
| 802 case '3': | |
| 803 case '4': | |
| 804 case '5': | |
| 805 case '6': | |
| 806 case '7': | |
| 807 case '8': | |
| 808 case '9': | |
| 809 case '(': | |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
810 /* TODO: \z1...\z9 and \z( not yet supported */ |
| 4444 | 811 return FAIL; |
| 812 default: | |
| 813 syntax_error = TRUE; | |
| 4450 | 814 EMSGN(_("E867: (NFA) Unknown operator '\\z%c'"), |
| 4444 | 815 no_Magic(c)); |
| 816 return FAIL; | |
| 817 } | |
| 818 break; | |
| 819 | |
| 820 case Magic('%'): | |
| 821 c = no_Magic(getchr()); | |
| 822 switch (c) | |
| 823 { | |
| 824 /* () without a back reference */ | |
| 825 case '(': | |
| 826 if (nfa_reg(REG_NPAREN) == FAIL) | |
| 827 return FAIL; | |
| 828 EMIT(NFA_NOPEN); | |
| 829 break; | |
| 830 | |
| 831 case 'd': /* %d123 decimal */ | |
| 832 case 'o': /* %o123 octal */ | |
| 833 case 'x': /* %xab hex 2 */ | |
| 834 case 'u': /* %uabcd hex 4 */ | |
| 835 case 'U': /* %U1234abcd hex 8 */ | |
|
4543
08ac46980953
updated for version 7.3.1019
Bram Moolenaar <bram@vim.org>
parents:
4541
diff
changeset
|
836 { |
|
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
837 int nr; |
|
4543
08ac46980953
updated for version 7.3.1019
Bram Moolenaar <bram@vim.org>
parents:
4541
diff
changeset
|
838 |
|
08ac46980953
updated for version 7.3.1019
Bram Moolenaar <bram@vim.org>
parents:
4541
diff
changeset
|
839 switch (c) |
|
08ac46980953
updated for version 7.3.1019
Bram Moolenaar <bram@vim.org>
parents:
4541
diff
changeset
|
840 { |
|
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
841 case 'd': nr = getdecchrs(); break; |
|
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
842 case 'o': nr = getoctchrs(); break; |
|
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
843 case 'x': nr = gethexchrs(2); break; |
|
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
844 case 'u': nr = gethexchrs(4); break; |
|
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
845 case 'U': nr = gethexchrs(8); break; |
|
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
846 default: nr = -1; break; |
|
4543
08ac46980953
updated for version 7.3.1019
Bram Moolenaar <bram@vim.org>
parents:
4541
diff
changeset
|
847 } |
|
08ac46980953
updated for version 7.3.1019
Bram Moolenaar <bram@vim.org>
parents:
4541
diff
changeset
|
848 |
|
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
849 if (nr < 0) |
|
4543
08ac46980953
updated for version 7.3.1019
Bram Moolenaar <bram@vim.org>
parents:
4541
diff
changeset
|
850 EMSG2_RET_FAIL( |
|
08ac46980953
updated for version 7.3.1019
Bram Moolenaar <bram@vim.org>
parents:
4541
diff
changeset
|
851 _("E678: Invalid character after %s%%[dxouU]"), |
|
08ac46980953
updated for version 7.3.1019
Bram Moolenaar <bram@vim.org>
parents:
4541
diff
changeset
|
852 reg_magic == MAGIC_ALL); |
|
08ac46980953
updated for version 7.3.1019
Bram Moolenaar <bram@vim.org>
parents:
4541
diff
changeset
|
853 /* TODO: what if a composing character follows? */ |
|
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
854 EMIT(nr); |
|
4543
08ac46980953
updated for version 7.3.1019
Bram Moolenaar <bram@vim.org>
parents:
4541
diff
changeset
|
855 } |
| 4444 | 856 break; |
| 857 | |
| 858 /* Catch \%^ and \%$ regardless of where they appear in the | |
| 859 * pattern -- regardless of whether or not it makes sense. */ | |
| 860 case '^': | |
| 861 EMIT(NFA_BOF); | |
| 862 break; | |
| 863 | |
| 864 case '$': | |
| 865 EMIT(NFA_EOF); | |
| 866 break; | |
| 867 | |
| 868 case '#': | |
|
4583
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
869 EMIT(NFA_CURSOR); |
| 4444 | 870 break; |
| 871 | |
| 872 case 'V': | |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
873 /* TODO: not supported yet */ |
| 4444 | 874 return FAIL; |
| 875 break; | |
| 876 | |
| 877 case '[': | |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
878 /* TODO: \%[abc] not supported yet */ |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
879 return FAIL; |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
880 |
| 4444 | 881 default: |
|
4583
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
882 { |
|
4655
779ca415f8e1
updated for version 7.3.1075
Bram Moolenaar <bram@vim.org>
parents:
4651
diff
changeset
|
883 int n = 0; |
|
4583
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
884 int cmp = c; |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
885 |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
886 if (c == '<' || c == '>') |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
887 c = getchr(); |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
888 while (VIM_ISDIGIT(c)) |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
889 { |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
890 n = n * 10 + (c - '0'); |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
891 c = getchr(); |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
892 } |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
893 if (c == 'l' || c == 'c' || c == 'v') |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
894 { |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
895 EMIT(n); |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
896 if (c == 'l') |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
897 EMIT(cmp == '<' ? NFA_LNUM_LT : |
|
321cfbef9431
updated for version 7.3.1039
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parents:
4579
diff
changeset
|
898 cmp == '>' ? NFA_LNUM_GT : NFA_LNUM); |
|
321cfbef9431
updated for version 7.3.1039
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parents:
4579
diff
changeset
|
899 else if (c == 'c') |
|
321cfbef9431
updated for version 7.3.1039
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parents:
4579
diff
changeset
|
900 EMIT(cmp == '<' ? NFA_COL_LT : |
|
321cfbef9431
updated for version 7.3.1039
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parents:
4579
diff
changeset
|
901 cmp == '>' ? NFA_COL_GT : NFA_COL); |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
902 else |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
903 EMIT(cmp == '<' ? NFA_VCOL_LT : |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
904 cmp == '>' ? NFA_VCOL_GT : NFA_VCOL); |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
905 break; |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
906 } |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
907 else if (c == '\'') |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
908 /* TODO: \%'m not supported yet */ |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
909 return FAIL; |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
910 } |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
911 syntax_error = TRUE; |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
912 EMSGN(_("E867: (NFA) Unknown operator '\\%%%c'"), |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
913 no_Magic(c)); |
| 4444 | 914 return FAIL; |
| 915 } | |
| 916 break; | |
| 917 | |
| 918 case Magic('['): | |
|
4517
9a2183bd8295
updated for version 7.3.1006
Bram Moolenaar <bram@vim.org>
parents:
4515
diff
changeset
|
919 collection: |
| 4444 | 920 /* |
| 921 * Glue is emitted between several atoms from the []. | |
| 922 * It is either NFA_OR, or NFA_CONCAT. | |
| 923 * | |
| 924 * [abc] expands to 'a b NFA_OR c NFA_OR' (in postfix notation) | |
| 925 * [^abc] expands to 'a NFA_NOT b NFA_NOT NFA_CONCAT c NFA_NOT | |
| 926 * NFA_CONCAT NFA_END_NEG_RANGE NFA_CONCAT' (in postfix | |
| 927 * notation) | |
| 928 * | |
| 929 */ | |
| 930 | |
| 931 | |
| 932 /* Emit negation atoms, if needed. | |
| 933 * The CONCAT below merges the NOT with the previous node. */ | |
| 934 #define TRY_NEG() \ | |
| 935 if (negated == TRUE) \ | |
| 936 { \ | |
| 937 EMIT(NFA_NOT); \ | |
| 938 } | |
| 939 | |
| 940 /* Emit glue between important nodes : CONCAT or OR. */ | |
| 941 #define EMIT_GLUE() \ | |
| 942 if (first == FALSE) \ | |
| 943 EMIT(glue); \ | |
| 944 else \ | |
| 945 first = FALSE; | |
| 946 | |
| 947 p = regparse; | |
| 948 endp = skip_anyof(p); | |
| 949 if (*endp == ']') | |
| 950 { | |
| 951 /* | |
| 952 * Try to reverse engineer character classes. For example, | |
| 953 * recognize that [0-9] stands for \d and [A-Za-z_] with \h, | |
| 954 * and perform the necessary substitutions in the NFA. | |
| 955 */ | |
| 956 result = nfa_recognize_char_class(regparse, endp, | |
| 957 extra == ADD_NL); | |
| 958 if (result != FAIL) | |
| 959 { | |
| 960 if (result >= NFA_DIGIT && result <= NFA_NUPPER) | |
| 961 EMIT(result); | |
| 962 else /* must be char class + newline */ | |
| 963 { | |
| 964 EMIT(result - ADD_NL); | |
| 965 EMIT(NFA_NEWL); | |
| 966 EMIT(NFA_OR); | |
| 967 } | |
| 968 regparse = endp; | |
|
4573
37e444aeb33b
updated for version 7.3.1034
Bram Moolenaar <bram@vim.org>
parents:
4571
diff
changeset
|
969 mb_ptr_adv(regparse); |
| 4444 | 970 return OK; |
| 971 } | |
| 972 /* | |
| 973 * Failed to recognize a character class. Use the simple | |
| 974 * version that turns [abc] into 'a' OR 'b' OR 'c' | |
| 975 */ | |
| 976 startc = endc = oldstartc = -1; | |
| 977 first = TRUE; /* Emitting first atom in this sequence? */ | |
| 978 negated = FALSE; | |
| 979 glue = NFA_OR; | |
| 980 if (*regparse == '^') /* negated range */ | |
| 981 { | |
| 982 negated = TRUE; | |
| 983 glue = NFA_CONCAT; | |
|
4573
37e444aeb33b
updated for version 7.3.1034
Bram Moolenaar <bram@vim.org>
parents:
4571
diff
changeset
|
984 mb_ptr_adv(regparse); |
| 4444 | 985 } |
| 986 if (*regparse == '-') | |
| 987 { | |
| 988 startc = '-'; | |
| 989 EMIT(startc); | |
| 990 TRY_NEG(); | |
| 991 EMIT_GLUE(); | |
|
4573
37e444aeb33b
updated for version 7.3.1034
Bram Moolenaar <bram@vim.org>
parents:
4571
diff
changeset
|
992 mb_ptr_adv(regparse); |
| 4444 | 993 } |
| 994 /* Emit the OR branches for each character in the [] */ | |
| 995 emit_range = FALSE; | |
| 996 while (regparse < endp) | |
| 997 { | |
| 998 oldstartc = startc; | |
| 999 startc = -1; | |
| 1000 got_coll_char = FALSE; | |
| 1001 if (*regparse == '[') | |
| 1002 { | |
| 1003 /* Check for [: :], [= =], [. .] */ | |
| 1004 equiclass = collclass = 0; | |
| 1005 charclass = get_char_class(®parse); | |
| 1006 if (charclass == CLASS_NONE) | |
| 1007 { | |
| 1008 equiclass = get_equi_class(®parse); | |
| 1009 if (equiclass == 0) | |
| 1010 collclass = get_coll_element(®parse); | |
| 1011 } | |
| 1012 | |
| 1013 /* Character class like [:alpha:] */ | |
| 1014 if (charclass != CLASS_NONE) | |
| 1015 { | |
| 1016 switch (charclass) | |
| 1017 { | |
| 1018 case CLASS_ALNUM: | |
| 1019 EMIT(NFA_CLASS_ALNUM); | |
| 1020 break; | |
| 1021 case CLASS_ALPHA: | |
| 1022 EMIT(NFA_CLASS_ALPHA); | |
| 1023 break; | |
| 1024 case CLASS_BLANK: | |
| 1025 EMIT(NFA_CLASS_BLANK); | |
| 1026 break; | |
| 1027 case CLASS_CNTRL: | |
| 1028 EMIT(NFA_CLASS_CNTRL); | |
| 1029 break; | |
| 1030 case CLASS_DIGIT: | |
| 1031 EMIT(NFA_CLASS_DIGIT); | |
| 1032 break; | |
| 1033 case CLASS_GRAPH: | |
| 1034 EMIT(NFA_CLASS_GRAPH); | |
| 1035 break; | |
| 1036 case CLASS_LOWER: | |
| 1037 EMIT(NFA_CLASS_LOWER); | |
| 1038 break; | |
| 1039 case CLASS_PRINT: | |
| 1040 EMIT(NFA_CLASS_PRINT); | |
| 1041 break; | |
| 1042 case CLASS_PUNCT: | |
| 1043 EMIT(NFA_CLASS_PUNCT); | |
| 1044 break; | |
| 1045 case CLASS_SPACE: | |
| 1046 EMIT(NFA_CLASS_SPACE); | |
| 1047 break; | |
| 1048 case CLASS_UPPER: | |
| 1049 EMIT(NFA_CLASS_UPPER); | |
| 1050 break; | |
| 1051 case CLASS_XDIGIT: | |
| 1052 EMIT(NFA_CLASS_XDIGIT); | |
| 1053 break; | |
| 1054 case CLASS_TAB: | |
| 1055 EMIT(NFA_CLASS_TAB); | |
| 1056 break; | |
| 1057 case CLASS_RETURN: | |
| 1058 EMIT(NFA_CLASS_RETURN); | |
| 1059 break; | |
| 1060 case CLASS_BACKSPACE: | |
| 1061 EMIT(NFA_CLASS_BACKSPACE); | |
| 1062 break; | |
| 1063 case CLASS_ESCAPE: | |
| 1064 EMIT(NFA_CLASS_ESCAPE); | |
| 1065 break; | |
| 1066 } | |
| 1067 TRY_NEG(); | |
| 1068 EMIT_GLUE(); | |
| 1069 continue; | |
| 1070 } | |
| 1071 /* Try equivalence class [=a=] and the like */ | |
| 1072 if (equiclass != 0) | |
| 1073 { | |
| 1074 result = nfa_emit_equi_class(equiclass, negated); | |
| 1075 if (result == FAIL) | |
| 1076 { | |
| 1077 /* should never happen */ | |
| 1078 EMSG_RET_FAIL(_("E868: Error building NFA with equivalence class!")); | |
| 1079 } | |
| 1080 EMIT_GLUE(); | |
| 1081 continue; | |
| 1082 } | |
| 1083 /* Try collating class like [. .] */ | |
| 1084 if (collclass != 0) | |
| 1085 { | |
| 1086 startc = collclass; /* allow [.a.]-x as a range */ | |
| 1087 /* Will emit the proper atom at the end of the | |
| 1088 * while loop. */ | |
| 1089 } | |
| 1090 } | |
| 1091 /* Try a range like 'a-x' or '\t-z' */ | |
| 1092 if (*regparse == '-') | |
| 1093 { | |
| 1094 emit_range = TRUE; | |
| 1095 startc = oldstartc; | |
|
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|
1096 mb_ptr_adv(regparse); |
| 4444 | 1097 continue; /* reading the end of the range */ |
| 1098 } | |
| 1099 | |
| 1100 /* Now handle simple and escaped characters. | |
| 1101 * Only "\]", "\^", "\]" and "\\" are special in Vi. Vim | |
| 1102 * accepts "\t", "\e", etc., but only when the 'l' flag in | |
| 1103 * 'cpoptions' is not included. | |
| 1104 * Posix doesn't recognize backslash at all. | |
| 1105 */ | |
| 1106 if (*regparse == '\\' | |
| 1107 && !cpo_bsl | |
| 1108 && regparse + 1 <= endp | |
| 1109 && (vim_strchr(REGEXP_INRANGE, regparse[1]) != NULL | |
| 1110 || (!cpo_lit | |
| 1111 && vim_strchr(REGEXP_ABBR, regparse[1]) | |
| 1112 != NULL) | |
| 1113 ) | |
| 1114 ) | |
| 1115 { | |
|
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|
1116 mb_ptr_adv(regparse); |
| 4444 | 1117 |
|
4507
9dbbddb2ed10
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diff
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|
1118 if (*regparse == 'n') |
| 4444 | 1119 startc = reg_string ? NL : NFA_NEWL; |
| 1120 else | |
| 1121 if (*regparse == 'd' | |
| 1122 || *regparse == 'o' | |
| 1123 || *regparse == 'x' | |
| 1124 || *regparse == 'u' | |
| 1125 || *regparse == 'U' | |
| 1126 ) | |
| 1127 { | |
| 1128 /* TODO(RE) This needs more testing */ | |
| 1129 startc = coll_get_char(); | |
| 1130 got_coll_char = TRUE; | |
|
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|
1131 mb_ptr_back(old_regparse, regparse); |
| 4444 | 1132 } |
| 1133 else | |
| 1134 { | |
| 1135 /* \r,\t,\e,\b */ | |
| 1136 startc = backslash_trans(*regparse); | |
| 1137 } | |
| 1138 } | |
| 1139 | |
| 1140 /* Normal printable char */ | |
| 1141 if (startc == -1) | |
| 1142 #ifdef FEAT_MBYTE | |
| 1143 startc = (*mb_ptr2char)(regparse); | |
| 1144 #else | |
| 1145 startc = *regparse; | |
| 1146 #endif | |
| 1147 | |
| 1148 /* Previous char was '-', so this char is end of range. */ | |
| 1149 if (emit_range) | |
| 1150 { | |
| 1151 endc = startc; startc = oldstartc; | |
| 1152 if (startc > endc) | |
| 1153 EMSG_RET_FAIL(_(e_invrange)); | |
| 1154 #ifdef FEAT_MBYTE | |
| 1155 if (has_mbyte && ((*mb_char2len)(startc) > 1 | |
| 1156 || (*mb_char2len)(endc) > 1)) | |
| 1157 { | |
| 1158 if (endc > startc + 256) | |
| 1159 EMSG_RET_FAIL(_(e_invrange)); | |
| 1160 /* Emit the range. "startc" was already emitted, so | |
| 1161 * skip it. */ | |
| 1162 for (c = startc + 1; c <= endc; c++) | |
| 1163 { | |
|
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|
1164 EMIT(c); |
| 4444 | 1165 TRY_NEG(); |
| 1166 EMIT_GLUE(); | |
| 1167 } | |
| 1168 emit_range = FALSE; | |
| 1169 } | |
| 1170 else | |
| 1171 #endif | |
| 1172 { | |
| 1173 #ifdef EBCDIC | |
| 1174 int alpha_only = FALSE; | |
| 1175 | |
| 1176 /* for alphabetical range skip the gaps | |
| 1177 * 'i'-'j', 'r'-'s', 'I'-'J' and 'R'-'S'. */ | |
| 1178 if (isalpha(startc) && isalpha(endc)) | |
| 1179 alpha_only = TRUE; | |
| 1180 #endif | |
| 1181 /* Emit the range. "startc" was already emitted, so | |
| 1182 * skip it. */ | |
| 1183 for (c = startc + 1; c <= endc; c++) | |
| 1184 #ifdef EBCDIC | |
| 1185 if (!alpha_only || isalpha(startc)) | |
| 1186 #endif | |
| 1187 { | |
| 1188 EMIT(c); | |
| 1189 TRY_NEG(); | |
| 1190 EMIT_GLUE(); | |
| 1191 } | |
| 1192 emit_range = FALSE; | |
| 1193 } | |
| 1194 } | |
| 1195 else | |
| 1196 { | |
| 1197 /* | |
| 1198 * This char (startc) is not part of a range. Just | |
| 1199 * emit it. | |
| 1200 * | |
| 1201 * Normally, simply emit startc. But if we get char | |
| 1202 * code=0 from a collating char, then replace it with | |
| 1203 * 0x0a. | |
| 1204 * | |
| 1205 * This is needed to completely mimic the behaviour of | |
| 1206 * the backtracking engine. | |
| 1207 */ | |
| 1208 if (got_coll_char == TRUE && startc == 0) | |
| 1209 EMIT(0x0a); | |
| 1210 else | |
|
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|
1211 EMIT(startc); |
| 4444 | 1212 TRY_NEG(); |
| 1213 EMIT_GLUE(); | |
| 1214 } | |
| 1215 | |
|
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|
1216 mb_ptr_adv(regparse); |
| 4444 | 1217 } /* while (p < endp) */ |
| 1218 | |
|
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|
1219 mb_ptr_back(old_regparse, regparse); |
| 4444 | 1220 if (*regparse == '-') /* if last, '-' is just a char */ |
| 1221 { | |
| 1222 EMIT('-'); | |
| 1223 TRY_NEG(); | |
| 1224 EMIT_GLUE(); | |
| 1225 } | |
|
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|
1226 mb_ptr_adv(regparse); |
| 4444 | 1227 |
| 1228 /* skip the trailing ] */ | |
| 1229 regparse = endp; | |
|
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|
1230 mb_ptr_adv(regparse); |
| 4444 | 1231 if (negated == TRUE) |
| 1232 { | |
| 1233 /* Mark end of negated char range */ | |
| 1234 EMIT(NFA_END_NEG_RANGE); | |
| 1235 EMIT(NFA_CONCAT); | |
| 1236 } | |
|
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|
1237 |
|
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|
1238 /* \_[] also matches \n but it's not negated */ |
|
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|
1239 if (extra == ADD_NL) |
|
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1240 { |
|
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|
1241 EMIT(reg_string ? NL : NFA_NEWL); |
|
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|
1242 EMIT(NFA_OR); |
|
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|
1243 } |
|
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|
1244 |
| 4444 | 1245 return OK; |
|
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|
1246 } /* if exists closing ] */ |
|
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|
1247 |
|
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|
1248 if (reg_strict) |
| 4444 | 1249 { |
| 1250 syntax_error = TRUE; | |
| 1251 EMSG_RET_FAIL(_(e_missingbracket)); | |
| 1252 } | |
|
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|
1253 /* FALLTHROUGH */ |
|
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|
1254 |
| 4444 | 1255 default: |
| 1256 { | |
| 1257 #ifdef FEAT_MBYTE | |
| 1258 int plen; | |
| 1259 | |
| 1260 nfa_do_multibyte: | |
|
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|
1261 /* plen is length of current char with composing chars */ |
|
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|
1262 if (enc_utf8 && ((*mb_char2len)(c) |
|
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|
1263 != (plen = (*mb_ptr2len)(old_regparse)) |
|
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|
1264 || utf_iscomposing(c))) |
| 4444 | 1265 { |
|
4549
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|
1266 int i = 0; |
|
849180347ac3
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|
1267 |
|
4535
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|
1268 /* A base character plus composing characters, or just one |
|
45f97c349537
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|
1269 * or more composing characters. |
|
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|
1270 * This requires creating a separate atom as if enclosing |
|
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|
1271 * the characters in (), where NFA_COMPOSING is the ( and |
|
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|
1272 * NFA_END_COMPOSING is the ). Note that right now we are |
| 4444 | 1273 * building the postfix form, not the NFA itself; |
| 1274 * a composing char could be: a, b, c, NFA_COMPOSING | |
|
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|
1275 * where 'b' and 'c' are chars with codes > 256. */ |
|
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|
1276 for (;;) |
|
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|
1277 { |
|
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|
1278 EMIT(c); |
|
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|
1279 if (i > 0) |
|
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|
1280 EMIT(NFA_CONCAT); |
|
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|
1281 if ((i += utf_char2len(c)) >= plen) |
|
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|
1282 break; |
|
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|
1283 c = utf_ptr2char(old_regparse + i); |
|
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|
1284 } |
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|
1285 EMIT(NFA_COMPOSING); |
| 4444 | 1286 regparse = old_regparse + plen; |
| 1287 } | |
| 1288 else | |
| 1289 #endif | |
| 1290 { | |
| 1291 c = no_Magic(c); | |
| 1292 EMIT(c); | |
| 1293 } | |
| 1294 return OK; | |
| 1295 } | |
| 1296 } | |
| 1297 | |
| 1298 #undef TRY_NEG | |
| 1299 #undef EMIT_GLUE | |
| 1300 | |
| 1301 return OK; | |
| 1302 } | |
| 1303 | |
| 1304 /* | |
| 1305 * Parse something followed by possible [*+=]. | |
| 1306 * | |
| 1307 * A piece is an atom, possibly followed by a multi, an indication of how many | |
| 1308 * times the atom can be matched. Example: "a*" matches any sequence of "a" | |
| 1309 * characters: "", "a", "aa", etc. | |
| 1310 * | |
| 1311 * piece ::= atom | |
| 1312 * or atom multi | |
| 1313 */ | |
| 1314 static int | |
| 1315 nfa_regpiece() | |
| 1316 { | |
| 1317 int i; | |
| 1318 int op; | |
| 1319 int ret; | |
| 1320 long minval, maxval; | |
| 1321 int greedy = TRUE; /* Braces are prefixed with '-' ? */ | |
| 1322 char_u *old_regparse, *new_regparse; | |
| 1323 int c2; | |
|
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|
1324 int old_post_pos; |
|
f10f63aaec5c
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|
1325 int my_post_start; |
| 4444 | 1326 int old_regnpar; |
| 1327 int quest; | |
| 1328 | |
| 1329 /* Save the current position in the regexp, so that we can use it if | |
| 1330 * <atom>{m,n} is next. */ | |
| 1331 old_regparse = regparse; | |
| 1332 /* Save current number of open parenthesis, so we can use it if | |
| 1333 * <atom>{m,n} is next */ | |
| 1334 old_regnpar = regnpar; | |
| 1335 /* store current pos in the postfix form, for \{m,n} involving 0s */ | |
|
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|
1336 my_post_start = (int)(post_ptr - post_start); |
| 4444 | 1337 |
| 1338 ret = nfa_regatom(); | |
| 1339 if (ret == FAIL) | |
| 1340 return FAIL; /* cascaded error */ | |
| 1341 | |
| 1342 op = peekchr(); | |
| 1343 if (re_multi_type(op) == NOT_MULTI) | |
| 1344 return OK; | |
| 1345 | |
| 1346 skipchr(); | |
| 1347 switch (op) | |
| 1348 { | |
| 1349 case Magic('*'): | |
| 1350 EMIT(NFA_STAR); | |
| 1351 break; | |
| 1352 | |
| 1353 case Magic('+'): | |
| 1354 /* | |
| 1355 * Trick: Normally, (a*)\+ would match the whole input "aaa". The | |
| 1356 * first and only submatch would be "aaa". But the backtracking | |
| 1357 * engine interprets the plus as "try matching one more time", and | |
| 1358 * a* matches a second time at the end of the input, the empty | |
| 1359 * string. | |
| 1360 * The submatch will the empty string. | |
| 1361 * | |
|
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|
1362 * In order to be consistent with the old engine, we replace |
|
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|
1363 * <atom>+ with <atom><atom>* |
| 4444 | 1364 */ |
| 1365 regnpar = old_regnpar; | |
| 1366 regparse = old_regparse; | |
| 1367 curchr = -1; | |
| 1368 if (nfa_regatom() == FAIL) | |
| 1369 return FAIL; | |
| 1370 EMIT(NFA_STAR); | |
| 1371 EMIT(NFA_CONCAT); | |
| 1372 skipchr(); /* skip the \+ */ | |
| 1373 break; | |
| 1374 | |
| 1375 case Magic('@'): | |
| 1376 op = no_Magic(getchr()); | |
| 1377 switch(op) | |
| 1378 { | |
| 1379 case '=': | |
| 1380 EMIT(NFA_PREV_ATOM_NO_WIDTH); | |
| 1381 break; | |
|
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|
1382 case '!': |
|
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1383 EMIT(NFA_PREV_ATOM_NO_WIDTH_NEG); |
|
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1384 break; |
|
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1385 case '0': |
|
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1386 case '1': |
|
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1387 case '2': |
|
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1388 case '3': |
|
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1389 case '4': |
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1390 case '5': |
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1391 case '6': |
|
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1392 case '7': |
|
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1393 case '8': |
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1394 case '9': |
| 4444 | 1395 case '<': |
| 1396 case '>': | |
| 1397 /* Not supported yet */ | |
| 1398 return FAIL; | |
| 1399 default: | |
| 1400 syntax_error = TRUE; | |
| 4450 | 1401 EMSGN(_("E869: (NFA) Unknown operator '\\@%c'"), op); |
| 4444 | 1402 return FAIL; |
| 1403 } | |
| 1404 break; | |
| 1405 | |
| 1406 case Magic('?'): | |
| 1407 case Magic('='): | |
| 1408 EMIT(NFA_QUEST); | |
| 1409 break; | |
| 1410 | |
| 1411 case Magic('{'): | |
| 1412 /* a{2,5} will expand to 'aaa?a?a?' | |
| 1413 * a{-1,3} will expand to 'aa??a??', where ?? is the nongreedy | |
| 1414 * version of '?' | |
| 1415 * \v(ab){2,3} will expand to '(ab)(ab)(ab)?', where all the | |
| 1416 * parenthesis have the same id | |
| 1417 */ | |
| 1418 | |
| 1419 greedy = TRUE; | |
| 1420 c2 = peekchr(); | |
| 1421 if (c2 == '-' || c2 == Magic('-')) | |
| 1422 { | |
| 1423 skipchr(); | |
| 1424 greedy = FALSE; | |
| 1425 } | |
| 1426 if (!read_limits(&minval, &maxval)) | |
| 1427 { | |
| 1428 syntax_error = TRUE; | |
| 1429 EMSG_RET_FAIL(_("E870: (NFA regexp) Error reading repetition limits")); | |
| 1430 } | |
| 1431 /* <atom>{0,inf}, <atom>{0,} and <atom>{} are equivalent to | |
| 1432 * <atom>* */ | |
| 1433 if (minval == 0 && maxval == MAX_LIMIT && greedy) | |
| 1434 { | |
| 1435 EMIT(NFA_STAR); | |
| 1436 break; | |
| 1437 } | |
| 1438 | |
|
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1439 /* TODO: \{-} doesn't work yet */ |
|
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1440 if (maxval == MAX_LIMIT && !greedy) |
| 4444 | 1441 return FAIL; |
| 1442 | |
| 1443 /* Special case: x{0} or x{-0} */ | |
| 1444 if (maxval == 0) | |
| 1445 { | |
| 1446 /* Ignore result of previous call to nfa_regatom() */ | |
|
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1447 post_ptr = post_start + my_post_start; |
| 4444 | 1448 /* NFA_SKIP_CHAR has 0-length and works everywhere */ |
| 1449 EMIT(NFA_SKIP_CHAR); | |
| 1450 return OK; | |
| 1451 } | |
| 1452 | |
| 1453 /* Ignore previous call to nfa_regatom() */ | |
|
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1454 post_ptr = post_start + my_post_start; |
| 4444 | 1455 /* Save pos after the repeated atom and the \{} */ |
| 1456 new_regparse = regparse; | |
| 1457 | |
| 1458 quest = (greedy == TRUE? NFA_QUEST : NFA_QUEST_NONGREEDY); | |
| 1459 for (i = 0; i < maxval; i++) | |
| 1460 { | |
| 1461 /* Goto beginning of the repeated atom */ | |
| 1462 regparse = old_regparse; | |
| 1463 curchr = -1; | |
| 1464 /* Restore count of parenthesis */ | |
| 1465 regnpar = old_regnpar; | |
|
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1466 old_post_pos = (int)(post_ptr - post_start); |
| 4444 | 1467 if (nfa_regatom() == FAIL) |
| 1468 return FAIL; | |
| 1469 /* after "minval" times, atoms are optional */ | |
| 1470 if (i + 1 > minval) | |
|
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1471 { |
|
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1472 if (maxval == MAX_LIMIT) |
|
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1473 EMIT(NFA_STAR); |
|
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1474 else |
|
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1475 EMIT(quest); |
|
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|
1476 } |
|
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1477 if (old_post_pos != my_post_start) |
| 4444 | 1478 EMIT(NFA_CONCAT); |
|
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|
1479 if (i + 1 > minval && maxval == MAX_LIMIT) |
|
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1480 break; |
| 4444 | 1481 } |
| 1482 | |
| 1483 /* Go to just after the repeated atom and the \{} */ | |
| 1484 regparse = new_regparse; | |
| 1485 curchr = -1; | |
| 1486 | |
| 1487 break; | |
| 1488 | |
| 1489 | |
| 1490 default: | |
| 1491 break; | |
| 1492 } /* end switch */ | |
| 1493 | |
| 1494 if (re_multi_type(peekchr()) != NOT_MULTI) | |
| 1495 { | |
| 1496 /* Can't have a multi follow a multi. */ | |
| 1497 syntax_error = TRUE; | |
| 1498 EMSG_RET_FAIL(_("E871: (NFA regexp) Can't have a multi follow a multi !")); | |
| 1499 } | |
| 1500 | |
| 1501 return OK; | |
| 1502 } | |
| 1503 | |
| 1504 /* | |
| 1505 * Parse one or more pieces, concatenated. It matches a match for the | |
| 1506 * first piece, followed by a match for the second piece, etc. Example: | |
| 1507 * "f[0-9]b", first matches "f", then a digit and then "b". | |
| 1508 * | |
| 1509 * concat ::= piece | |
| 1510 * or piece piece | |
| 1511 * or piece piece piece | |
| 1512 * etc. | |
| 1513 */ | |
| 1514 static int | |
| 1515 nfa_regconcat() | |
| 1516 { | |
| 1517 int cont = TRUE; | |
| 1518 int first = TRUE; | |
| 1519 | |
| 1520 while (cont) | |
| 1521 { | |
| 1522 switch (peekchr()) | |
| 1523 { | |
| 1524 case NUL: | |
| 1525 case Magic('|'): | |
| 1526 case Magic('&'): | |
| 1527 case Magic(')'): | |
| 1528 cont = FALSE; | |
| 1529 break; | |
| 1530 | |
| 1531 case Magic('Z'): | |
| 1532 #ifdef FEAT_MBYTE | |
| 1533 regflags |= RF_ICOMBINE; | |
| 1534 #endif | |
| 1535 skipchr_keepstart(); | |
| 1536 break; | |
| 1537 case Magic('c'): | |
| 1538 regflags |= RF_ICASE; | |
| 1539 skipchr_keepstart(); | |
| 1540 break; | |
| 1541 case Magic('C'): | |
| 1542 regflags |= RF_NOICASE; | |
| 1543 skipchr_keepstart(); | |
| 1544 break; | |
| 1545 case Magic('v'): | |
| 1546 reg_magic = MAGIC_ALL; | |
| 1547 skipchr_keepstart(); | |
| 1548 curchr = -1; | |
| 1549 break; | |
| 1550 case Magic('m'): | |
| 1551 reg_magic = MAGIC_ON; | |
| 1552 skipchr_keepstart(); | |
| 1553 curchr = -1; | |
| 1554 break; | |
| 1555 case Magic('M'): | |
| 1556 reg_magic = MAGIC_OFF; | |
| 1557 skipchr_keepstart(); | |
| 1558 curchr = -1; | |
| 1559 break; | |
| 1560 case Magic('V'): | |
| 1561 reg_magic = MAGIC_NONE; | |
| 1562 skipchr_keepstart(); | |
| 1563 curchr = -1; | |
| 1564 break; | |
| 1565 | |
| 1566 default: | |
| 1567 if (nfa_regpiece() == FAIL) | |
| 1568 return FAIL; | |
| 1569 if (first == FALSE) | |
| 1570 EMIT(NFA_CONCAT); | |
| 1571 else | |
| 1572 first = FALSE; | |
| 1573 break; | |
| 1574 } | |
| 1575 } | |
| 1576 | |
| 1577 return OK; | |
| 1578 } | |
| 1579 | |
| 1580 /* | |
| 1581 * Parse a branch, one or more concats, separated by "\&". It matches the | |
| 1582 * last concat, but only if all the preceding concats also match at the same | |
| 1583 * position. Examples: | |
| 1584 * "foobeep\&..." matches "foo" in "foobeep". | |
| 1585 * ".*Peter\&.*Bob" matches in a line containing both "Peter" and "Bob" | |
| 1586 * | |
| 1587 * branch ::= concat | |
| 1588 * or concat \& concat | |
| 1589 * or concat \& concat \& concat | |
| 1590 * etc. | |
| 1591 */ | |
| 1592 static int | |
| 1593 nfa_regbranch() | |
| 1594 { | |
| 1595 int ch; | |
|
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|
1596 int old_post_pos; |
|
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1597 |
|
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1598 old_post_pos = (int)(post_ptr - post_start); |
| 4444 | 1599 |
| 1600 /* First branch, possibly the only one */ | |
| 1601 if (nfa_regconcat() == FAIL) | |
| 1602 return FAIL; | |
| 1603 | |
| 1604 ch = peekchr(); | |
| 1605 /* Try next concats */ | |
| 1606 while (ch == Magic('&')) | |
| 1607 { | |
| 1608 skipchr(); | |
| 1609 EMIT(NFA_NOPEN); | |
| 1610 EMIT(NFA_PREV_ATOM_NO_WIDTH); | |
|
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|
1611 old_post_pos = (int)(post_ptr - post_start); |
| 4444 | 1612 if (nfa_regconcat() == FAIL) |
| 1613 return FAIL; | |
| 1614 /* if concat is empty, skip a input char. But do emit a node */ | |
|
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1615 if (old_post_pos == (int)(post_ptr - post_start)) |
| 4444 | 1616 EMIT(NFA_SKIP_CHAR); |
| 1617 EMIT(NFA_CONCAT); | |
| 1618 ch = peekchr(); | |
| 1619 } | |
| 1620 | |
| 1621 /* Even if a branch is empty, emit one node for it */ | |
|
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|
1622 if (old_post_pos == (int)(post_ptr - post_start)) |
| 4444 | 1623 EMIT(NFA_SKIP_CHAR); |
| 1624 | |
| 1625 return OK; | |
| 1626 } | |
| 1627 | |
| 1628 /* | |
| 1629 * Parse a pattern, one or more branches, separated by "\|". It matches | |
| 1630 * anything that matches one of the branches. Example: "foo\|beep" matches | |
| 1631 * "foo" and matches "beep". If more than one branch matches, the first one | |
| 1632 * is used. | |
| 1633 * | |
| 1634 * pattern ::= branch | |
| 1635 * or branch \| branch | |
| 1636 * or branch \| branch \| branch | |
| 1637 * etc. | |
| 1638 */ | |
| 1639 static int | |
| 1640 nfa_reg(paren) | |
| 1641 int paren; /* REG_NOPAREN, REG_PAREN, REG_NPAREN or REG_ZPAREN */ | |
| 1642 { | |
| 1643 int parno = 0; | |
| 1644 | |
| 1645 #ifdef FEAT_SYN_HL | |
| 1646 #endif | |
| 1647 if (paren == REG_PAREN) | |
| 1648 { | |
| 1649 if (regnpar >= NSUBEXP) /* Too many `(' */ | |
| 1650 { | |
| 1651 syntax_error = TRUE; | |
| 1652 EMSG_RET_FAIL(_("E872: (NFA regexp) Too many '('")); | |
| 1653 } | |
| 1654 parno = regnpar++; | |
| 1655 } | |
| 1656 | |
| 1657 if (nfa_regbranch() == FAIL) | |
| 1658 return FAIL; /* cascaded error */ | |
| 1659 | |
| 1660 while (peekchr() == Magic('|')) | |
| 1661 { | |
| 1662 skipchr(); | |
| 1663 if (nfa_regbranch() == FAIL) | |
| 1664 return FAIL; /* cascaded error */ | |
| 1665 EMIT(NFA_OR); | |
| 1666 } | |
| 1667 | |
| 1668 /* Check for proper termination. */ | |
| 1669 if (paren != REG_NOPAREN && getchr() != Magic(')')) | |
| 1670 { | |
| 1671 syntax_error = TRUE; | |
| 1672 if (paren == REG_NPAREN) | |
| 1673 EMSG2_RET_FAIL(_(e_unmatchedpp), reg_magic == MAGIC_ALL); | |
| 1674 else | |
| 1675 EMSG2_RET_FAIL(_(e_unmatchedp), reg_magic == MAGIC_ALL); | |
| 1676 } | |
| 1677 else if (paren == REG_NOPAREN && peekchr() != NUL) | |
| 1678 { | |
| 1679 syntax_error = TRUE; | |
| 1680 if (peekchr() == Magic(')')) | |
| 1681 EMSG2_RET_FAIL(_(e_unmatchedpar), reg_magic == MAGIC_ALL); | |
| 1682 else | |
| 1683 EMSG_RET_FAIL(_("E873: (NFA regexp) proper termination error")); | |
| 1684 } | |
| 1685 /* | |
| 1686 * Here we set the flag allowing back references to this set of | |
| 1687 * parentheses. | |
| 1688 */ | |
| 1689 if (paren == REG_PAREN) | |
| 1690 { | |
| 1691 had_endbrace[parno] = TRUE; /* have seen the close paren */ | |
| 1692 EMIT(NFA_MOPEN + parno); | |
| 1693 } | |
| 1694 | |
| 1695 return OK; | |
| 1696 } | |
| 1697 | |
| 1698 #ifdef DEBUG | |
| 1699 static char_u code[50]; | |
| 1700 | |
| 1701 static void | |
| 1702 nfa_set_code(c) | |
| 1703 int c; | |
| 1704 { | |
| 1705 int addnl = FALSE; | |
| 1706 | |
| 1707 if (c >= NFA_FIRST_NL && c <= NFA_LAST_NL) | |
| 1708 { | |
| 1709 addnl = TRUE; | |
| 1710 c -= ADD_NL; | |
| 1711 } | |
| 1712 | |
| 1713 STRCPY(code, ""); | |
| 1714 switch (c) | |
| 1715 { | |
| 1716 case NFA_MATCH: STRCPY(code, "NFA_MATCH "); break; | |
| 1717 case NFA_SPLIT: STRCPY(code, "NFA_SPLIT "); break; | |
| 1718 case NFA_CONCAT: STRCPY(code, "NFA_CONCAT "); break; | |
| 1719 case NFA_NEWL: STRCPY(code, "NFA_NEWL "); break; | |
| 1720 case NFA_ZSTART: STRCPY(code, "NFA_ZSTART"); break; | |
| 1721 case NFA_ZEND: STRCPY(code, "NFA_ZEND"); break; | |
| 1722 | |
|
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1723 case NFA_BACKREF1: STRCPY(code, "NFA_BACKREF1"); break; |
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1724 case NFA_BACKREF2: STRCPY(code, "NFA_BACKREF2"); break; |
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1725 case NFA_BACKREF3: STRCPY(code, "NFA_BACKREF3"); break; |
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1726 case NFA_BACKREF4: STRCPY(code, "NFA_BACKREF4"); break; |
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1727 case NFA_BACKREF5: STRCPY(code, "NFA_BACKREF5"); break; |
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1728 case NFA_BACKREF6: STRCPY(code, "NFA_BACKREF6"); break; |
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1729 case NFA_BACKREF7: STRCPY(code, "NFA_BACKREF7"); break; |
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1730 case NFA_BACKREF8: STRCPY(code, "NFA_BACKREF8"); break; |
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1731 case NFA_BACKREF9: STRCPY(code, "NFA_BACKREF9"); break; |
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1732 case NFA_SKIP: STRCPY(code, "NFA_SKIP"); break; |
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1733 |
| 4444 | 1734 case NFA_PREV_ATOM_NO_WIDTH: |
| 1735 STRCPY(code, "NFA_PREV_ATOM_NO_WIDTH"); break; | |
|
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1736 case NFA_PREV_ATOM_NO_WIDTH_NEG: |
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1737 STRCPY(code, "NFA_PREV_ATOM_NO_WIDTH_NEG"); break; |
|
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1738 case NFA_NOPEN: STRCPY(code, "NFA_NOPEN"); break; |
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1739 case NFA_NCLOSE: STRCPY(code, "NFA_NCLOSE"); break; |
| 4444 | 1740 case NFA_START_INVISIBLE: STRCPY(code, "NFA_START_INVISIBLE"); break; |
| 1741 case NFA_END_INVISIBLE: STRCPY(code, "NFA_END_INVISIBLE"); break; | |
| 1742 | |
| 1743 case NFA_COMPOSING: STRCPY(code, "NFA_COMPOSING"); break; | |
| 1744 case NFA_END_COMPOSING: STRCPY(code, "NFA_END_COMPOSING"); break; | |
| 1745 | |
| 1746 case NFA_MOPEN + 0: | |
| 1747 case NFA_MOPEN + 1: | |
| 1748 case NFA_MOPEN + 2: | |
| 1749 case NFA_MOPEN + 3: | |
| 1750 case NFA_MOPEN + 4: | |
| 1751 case NFA_MOPEN + 5: | |
| 1752 case NFA_MOPEN + 6: | |
| 1753 case NFA_MOPEN + 7: | |
| 1754 case NFA_MOPEN + 8: | |
| 1755 case NFA_MOPEN + 9: | |
| 1756 STRCPY(code, "NFA_MOPEN(x)"); | |
| 1757 code[10] = c - NFA_MOPEN + '0'; | |
| 1758 break; | |
| 1759 case NFA_MCLOSE + 0: | |
| 1760 case NFA_MCLOSE + 1: | |
| 1761 case NFA_MCLOSE + 2: | |
| 1762 case NFA_MCLOSE + 3: | |
| 1763 case NFA_MCLOSE + 4: | |
| 1764 case NFA_MCLOSE + 5: | |
| 1765 case NFA_MCLOSE + 6: | |
| 1766 case NFA_MCLOSE + 7: | |
| 1767 case NFA_MCLOSE + 8: | |
| 1768 case NFA_MCLOSE + 9: | |
| 1769 STRCPY(code, "NFA_MCLOSE(x)"); | |
| 1770 code[11] = c - NFA_MCLOSE + '0'; | |
| 1771 break; | |
| 1772 case NFA_EOL: STRCPY(code, "NFA_EOL "); break; | |
| 1773 case NFA_BOL: STRCPY(code, "NFA_BOL "); break; | |
| 1774 case NFA_EOW: STRCPY(code, "NFA_EOW "); break; | |
| 1775 case NFA_BOW: STRCPY(code, "NFA_BOW "); break; | |
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1776 case NFA_EOF: STRCPY(code, "NFA_EOF "); break; |
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1777 case NFA_BOF: STRCPY(code, "NFA_BOF "); break; |
| 4444 | 1778 case NFA_STAR: STRCPY(code, "NFA_STAR "); break; |
| 1779 case NFA_NOT: STRCPY(code, "NFA_NOT "); break; | |
| 1780 case NFA_SKIP_CHAR: STRCPY(code, "NFA_SKIP_CHAR"); break; | |
| 1781 case NFA_OR: STRCPY(code, "NFA_OR"); break; | |
| 1782 case NFA_QUEST: STRCPY(code, "NFA_QUEST"); break; | |
| 1783 case NFA_QUEST_NONGREEDY: STRCPY(code, "NFA_QUEST_NON_GREEDY"); break; | |
| 1784 case NFA_END_NEG_RANGE: STRCPY(code, "NFA_END_NEG_RANGE"); break; | |
| 1785 case NFA_CLASS_ALNUM: STRCPY(code, "NFA_CLASS_ALNUM"); break; | |
| 1786 case NFA_CLASS_ALPHA: STRCPY(code, "NFA_CLASS_ALPHA"); break; | |
| 1787 case NFA_CLASS_BLANK: STRCPY(code, "NFA_CLASS_BLANK"); break; | |
| 1788 case NFA_CLASS_CNTRL: STRCPY(code, "NFA_CLASS_CNTRL"); break; | |
| 1789 case NFA_CLASS_DIGIT: STRCPY(code, "NFA_CLASS_DIGIT"); break; | |
| 1790 case NFA_CLASS_GRAPH: STRCPY(code, "NFA_CLASS_GRAPH"); break; | |
| 1791 case NFA_CLASS_LOWER: STRCPY(code, "NFA_CLASS_LOWER"); break; | |
| 1792 case NFA_CLASS_PRINT: STRCPY(code, "NFA_CLASS_PRINT"); break; | |
| 1793 case NFA_CLASS_PUNCT: STRCPY(code, "NFA_CLASS_PUNCT"); break; | |
| 1794 case NFA_CLASS_SPACE: STRCPY(code, "NFA_CLASS_SPACE"); break; | |
| 1795 case NFA_CLASS_UPPER: STRCPY(code, "NFA_CLASS_UPPER"); break; | |
| 1796 case NFA_CLASS_XDIGIT: STRCPY(code, "NFA_CLASS_XDIGIT"); break; | |
| 1797 case NFA_CLASS_TAB: STRCPY(code, "NFA_CLASS_TAB"); break; | |
| 1798 case NFA_CLASS_RETURN: STRCPY(code, "NFA_CLASS_RETURN"); break; | |
| 1799 case NFA_CLASS_BACKSPACE: STRCPY(code, "NFA_CLASS_BACKSPACE"); break; | |
| 1800 case NFA_CLASS_ESCAPE: STRCPY(code, "NFA_CLASS_ESCAPE"); break; | |
| 1801 | |
| 1802 case NFA_ANY: STRCPY(code, "NFA_ANY"); break; | |
| 1803 case NFA_IDENT: STRCPY(code, "NFA_IDENT"); break; | |
| 1804 case NFA_SIDENT:STRCPY(code, "NFA_SIDENT"); break; | |
| 1805 case NFA_KWORD: STRCPY(code, "NFA_KWORD"); break; | |
| 1806 case NFA_SKWORD:STRCPY(code, "NFA_SKWORD"); break; | |
| 1807 case NFA_FNAME: STRCPY(code, "NFA_FNAME"); break; | |
| 1808 case NFA_SFNAME:STRCPY(code, "NFA_SFNAME"); break; | |
| 1809 case NFA_PRINT: STRCPY(code, "NFA_PRINT"); break; | |
| 1810 case NFA_SPRINT:STRCPY(code, "NFA_SPRINT"); break; | |
| 1811 case NFA_WHITE: STRCPY(code, "NFA_WHITE"); break; | |
| 1812 case NFA_NWHITE:STRCPY(code, "NFA_NWHITE"); break; | |
| 1813 case NFA_DIGIT: STRCPY(code, "NFA_DIGIT"); break; | |
| 1814 case NFA_NDIGIT:STRCPY(code, "NFA_NDIGIT"); break; | |
| 1815 case NFA_HEX: STRCPY(code, "NFA_HEX"); break; | |
| 1816 case NFA_NHEX: STRCPY(code, "NFA_NHEX"); break; | |
| 1817 case NFA_OCTAL: STRCPY(code, "NFA_OCTAL"); break; | |
| 1818 case NFA_NOCTAL:STRCPY(code, "NFA_NOCTAL"); break; | |
| 1819 case NFA_WORD: STRCPY(code, "NFA_WORD"); break; | |
| 1820 case NFA_NWORD: STRCPY(code, "NFA_NWORD"); break; | |
| 1821 case NFA_HEAD: STRCPY(code, "NFA_HEAD"); break; | |
| 1822 case NFA_NHEAD: STRCPY(code, "NFA_NHEAD"); break; | |
| 1823 case NFA_ALPHA: STRCPY(code, "NFA_ALPHA"); break; | |
| 1824 case NFA_NALPHA:STRCPY(code, "NFA_NALPHA"); break; | |
| 1825 case NFA_LOWER: STRCPY(code, "NFA_LOWER"); break; | |
| 1826 case NFA_NLOWER:STRCPY(code, "NFA_NLOWER"); break; | |
| 1827 case NFA_UPPER: STRCPY(code, "NFA_UPPER"); break; | |
| 1828 case NFA_NUPPER:STRCPY(code, "NFA_NUPPER"); break; | |
| 1829 | |
| 1830 default: | |
| 1831 STRCPY(code, "CHAR(x)"); | |
| 1832 code[5] = c; | |
| 1833 } | |
| 1834 | |
| 1835 if (addnl == TRUE) | |
| 1836 STRCAT(code, " + NEWLINE "); | |
| 1837 | |
| 1838 } | |
| 1839 | |
| 1840 #ifdef ENABLE_LOG | |
| 1841 static FILE *log_fd; | |
| 1842 | |
| 1843 /* | |
| 1844 * Print the postfix notation of the current regexp. | |
| 1845 */ | |
| 1846 static void | |
| 1847 nfa_postfix_dump(expr, retval) | |
| 1848 char_u *expr; | |
| 1849 int retval; | |
| 1850 { | |
| 1851 int *p; | |
| 1852 FILE *f; | |
| 1853 | |
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1854 f = fopen(NFA_REGEXP_DUMP_LOG, "a"); |
| 4444 | 1855 if (f != NULL) |
| 1856 { | |
| 1857 fprintf(f, "\n-------------------------\n"); | |
| 1858 if (retval == FAIL) | |
| 1859 fprintf(f, ">>> NFA engine failed ... \n"); | |
| 1860 else if (retval == OK) | |
| 1861 fprintf(f, ">>> NFA engine succeeded !\n"); | |
| 1862 fprintf(f, "Regexp: \"%s\"\nPostfix notation (char): \"", expr); | |
| 4464 | 1863 for (p = post_start; *p && p < post_end; p++) |
| 4444 | 1864 { |
| 1865 nfa_set_code(*p); | |
| 1866 fprintf(f, "%s, ", code); | |
| 1867 } | |
| 1868 fprintf(f, "\"\nPostfix notation (int): "); | |
| 4464 | 1869 for (p = post_start; *p && p < post_end; p++) |
| 4444 | 1870 fprintf(f, "%d ", *p); |
| 1871 fprintf(f, "\n\n"); | |
| 1872 fclose(f); | |
| 1873 } | |
| 1874 } | |
| 1875 | |
| 1876 /* | |
| 1877 * Print the NFA starting with a root node "state". | |
| 1878 */ | |
| 1879 static void | |
|
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1880 nfa_print_state(debugf, state) |
| 4444 | 1881 FILE *debugf; |
| 1882 nfa_state_T *state; | |
| 1883 { | |
|
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1884 garray_T indent; |
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1885 |
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1886 ga_init2(&indent, 1, 64); |
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1887 ga_append(&indent, '\0'); |
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1888 nfa_print_state2(debugf, state, &indent); |
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1889 ga_clear(&indent); |
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1890 } |
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1891 |
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1892 static void |
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1893 nfa_print_state2(debugf, state, indent) |
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1894 FILE *debugf; |
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1895 nfa_state_T *state; |
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1896 garray_T *indent; |
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1897 { |
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1898 char_u *p; |
| 4444 | 1899 |
| 1900 if (state == NULL) | |
| 1901 return; | |
| 1902 | |
| 1903 fprintf(debugf, "(%2d)", abs(state->id)); | |
|
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1904 |
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1905 /* Output indent */ |
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1906 p = (char_u *)indent->ga_data; |
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1907 if (indent->ga_len >= 3) |
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1908 { |
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1909 int last = indent->ga_len - 3; |
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1910 char_u save[2]; |
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1911 |
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1912 STRNCPY(save, &p[last], 2); |
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1913 STRNCPY(&p[last], "+-", 2); |
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1914 fprintf(debugf, " %s", p); |
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1915 STRNCPY(&p[last], save, 2); |
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1916 } |
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1917 else |
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1918 fprintf(debugf, " %s", p); |
| 4444 | 1919 |
| 1920 nfa_set_code(state->c); | |
|
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1921 fprintf(debugf, "%s%s (%d) (id=%d)\n", |
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1922 state->negated ? "NOT " : "", code, state->c, abs(state->id)); |
| 4444 | 1923 if (state->id < 0) |
| 1924 return; | |
| 1925 | |
| 1926 state->id = abs(state->id) * -1; | |
|
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1927 |
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1928 /* grow indent for state->out */ |
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1929 indent->ga_len -= 1; |
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1930 if (state->out1) |
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1931 ga_concat(indent, (char_u *)"| "); |
|
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1932 else |
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1933 ga_concat(indent, (char_u *)" "); |
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1934 ga_append(indent, '\0'); |
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1935 |
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1936 nfa_print_state2(debugf, state->out, indent); |
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1937 |
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1938 /* replace last part of indent for state->out1 */ |
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1939 indent->ga_len -= 3; |
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1940 ga_concat(indent, (char_u *)" "); |
|
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1941 ga_append(indent, '\0'); |
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1942 |
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1943 nfa_print_state2(debugf, state->out1, indent); |
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1944 |
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1945 /* shrink indent */ |
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1946 indent->ga_len -= 3; |
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1947 ga_append(indent, '\0'); |
| 4444 | 1948 } |
| 1949 | |
| 1950 /* | |
| 1951 * Print the NFA state machine. | |
| 1952 */ | |
| 1953 static void | |
| 1954 nfa_dump(prog) | |
| 1955 nfa_regprog_T *prog; | |
| 1956 { | |
|
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1957 FILE *debugf = fopen(NFA_REGEXP_DUMP_LOG, "a"); |
| 4444 | 1958 |
| 1959 if (debugf != NULL) | |
| 1960 { | |
|
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1961 nfa_print_state(debugf, prog->start); |
| 4444 | 1962 fclose(debugf); |
| 1963 } | |
| 1964 } | |
| 1965 #endif /* ENABLE_LOG */ | |
| 1966 #endif /* DEBUG */ | |
| 1967 | |
| 1968 /* | |
| 1969 * Parse r.e. @expr and convert it into postfix form. | |
| 1970 * Return the postfix string on success, NULL otherwise. | |
| 1971 */ | |
| 1972 static int * | |
| 1973 re2post() | |
| 1974 { | |
| 1975 if (nfa_reg(REG_NOPAREN) == FAIL) | |
| 1976 return NULL; | |
| 1977 EMIT(NFA_MOPEN); | |
| 1978 return post_start; | |
| 1979 } | |
| 1980 | |
| 1981 /* NB. Some of the code below is inspired by Russ's. */ | |
| 1982 | |
| 1983 /* | |
| 1984 * Represents an NFA state plus zero or one or two arrows exiting. | |
| 1985 * if c == MATCH, no arrows out; matching state. | |
| 1986 * If c == SPLIT, unlabeled arrows to out and out1 (if != NULL). | |
| 1987 * If c < 256, labeled arrow with character c to out. | |
| 1988 */ | |
| 1989 | |
| 1990 static nfa_state_T *state_ptr; /* points to nfa_prog->state */ | |
| 1991 | |
| 1992 /* | |
| 1993 * Allocate and initialize nfa_state_T. | |
| 1994 */ | |
| 1995 static nfa_state_T * | |
| 1996 new_state(c, out, out1) | |
| 1997 int c; | |
| 1998 nfa_state_T *out; | |
| 1999 nfa_state_T *out1; | |
| 2000 { | |
| 2001 nfa_state_T *s; | |
| 2002 | |
| 2003 if (istate >= nstate) | |
| 2004 return NULL; | |
| 2005 | |
| 2006 s = &state_ptr[istate++]; | |
| 2007 | |
| 2008 s->c = c; | |
| 2009 s->out = out; | |
| 2010 s->out1 = out1; | |
| 2011 | |
| 2012 s->id = istate; | |
| 2013 s->lastlist = 0; | |
| 2014 s->negated = FALSE; | |
| 2015 | |
| 2016 return s; | |
| 2017 } | |
| 2018 | |
| 2019 /* | |
| 2020 * A partially built NFA without the matching state filled in. | |
| 2021 * Frag_T.start points at the start state. | |
| 2022 * Frag_T.out is a list of places that need to be set to the | |
| 2023 * next state for this fragment. | |
| 2024 */ | |
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2025 |
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2026 /* Since the out pointers in the list are always |
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2027 * uninitialized, we use the pointers themselves |
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2028 * as storage for the Ptrlists. */ |
| 4444 | 2029 typedef union Ptrlist Ptrlist; |
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2030 union Ptrlist |
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2031 { |
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2032 Ptrlist *next; |
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2033 nfa_state_T *s; |
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2034 }; |
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2035 |
| 4444 | 2036 struct Frag |
| 2037 { | |
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2038 nfa_state_T *start; |
| 4444 | 2039 Ptrlist *out; |
| 2040 }; | |
| 2041 typedef struct Frag Frag_T; | |
| 2042 | |
| 2043 static Frag_T frag __ARGS((nfa_state_T *start, Ptrlist *out)); | |
| 2044 static Ptrlist *list1 __ARGS((nfa_state_T **outp)); | |
| 2045 static void patch __ARGS((Ptrlist *l, nfa_state_T *s)); | |
| 2046 static Ptrlist *append __ARGS((Ptrlist *l1, Ptrlist *l2)); | |
| 2047 static void st_push __ARGS((Frag_T s, Frag_T **p, Frag_T *stack_end)); | |
| 2048 static Frag_T st_pop __ARGS((Frag_T **p, Frag_T *stack)); | |
| 2049 | |
| 2050 /* | |
| 4456 | 2051 * Initialize a Frag_T struct and return it. |
| 4444 | 2052 */ |
| 2053 static Frag_T | |
| 2054 frag(start, out) | |
| 2055 nfa_state_T *start; | |
| 2056 Ptrlist *out; | |
| 2057 { | |
| 4456 | 2058 Frag_T n; |
| 2059 | |
| 2060 n.start = start; | |
| 2061 n.out = out; | |
| 4444 | 2062 return n; |
| 2063 } | |
| 2064 | |
| 2065 /* | |
| 2066 * Create singleton list containing just outp. | |
| 2067 */ | |
| 2068 static Ptrlist * | |
| 2069 list1(outp) | |
| 2070 nfa_state_T **outp; | |
| 2071 { | |
| 2072 Ptrlist *l; | |
| 2073 | |
| 2074 l = (Ptrlist *)outp; | |
| 2075 l->next = NULL; | |
| 2076 return l; | |
| 2077 } | |
| 2078 | |
| 2079 /* | |
| 2080 * Patch the list of states at out to point to start. | |
| 2081 */ | |
| 2082 static void | |
| 2083 patch(l, s) | |
| 2084 Ptrlist *l; | |
| 2085 nfa_state_T *s; | |
| 2086 { | |
| 2087 Ptrlist *next; | |
| 2088 | |
| 2089 for (; l; l = next) | |
| 2090 { | |
| 2091 next = l->next; | |
| 2092 l->s = s; | |
| 2093 } | |
| 2094 } | |
| 2095 | |
| 2096 | |
| 2097 /* | |
| 2098 * Join the two lists l1 and l2, returning the combination. | |
| 2099 */ | |
| 2100 static Ptrlist * | |
| 2101 append(l1, l2) | |
| 2102 Ptrlist *l1; | |
| 2103 Ptrlist *l2; | |
| 2104 { | |
| 2105 Ptrlist *oldl1; | |
| 2106 | |
| 2107 oldl1 = l1; | |
| 2108 while (l1->next) | |
| 2109 l1 = l1->next; | |
| 2110 l1->next = l2; | |
| 2111 return oldl1; | |
| 2112 } | |
| 2113 | |
| 2114 /* | |
| 2115 * Stack used for transforming postfix form into NFA. | |
| 2116 */ | |
| 2117 static Frag_T empty; | |
| 2118 | |
| 2119 static void | |
| 2120 st_error(postfix, end, p) | |
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2121 int *postfix UNUSED; |
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2122 int *end UNUSED; |
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2123 int *p UNUSED; |
| 4444 | 2124 { |
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2125 #ifdef NFA_REGEXP_ERROR_LOG |
| 4444 | 2126 FILE *df; |
| 2127 int *p2; | |
| 2128 | |
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2129 df = fopen(NFA_REGEXP_ERROR_LOG, "a"); |
| 4444 | 2130 if (df) |
| 2131 { | |
| 2132 fprintf(df, "Error popping the stack!\n"); | |
| 2133 #ifdef DEBUG | |
| 2134 fprintf(df, "Current regexp is \"%s\"\n", nfa_regengine.expr); | |
| 2135 #endif | |
| 2136 fprintf(df, "Postfix form is: "); | |
| 2137 #ifdef DEBUG | |
| 2138 for (p2 = postfix; p2 < end; p2++) | |
| 2139 { | |
| 2140 nfa_set_code(*p2); | |
| 2141 fprintf(df, "%s, ", code); | |
| 2142 } | |
| 2143 nfa_set_code(*p); | |
| 2144 fprintf(df, "\nCurrent position is: "); | |
| 2145 for (p2 = postfix; p2 <= p; p2 ++) | |
| 2146 { | |
| 2147 nfa_set_code(*p2); | |
| 2148 fprintf(df, "%s, ", code); | |
| 2149 } | |
| 2150 #else | |
| 2151 for (p2 = postfix; p2 < end; p2++) | |
| 2152 { | |
| 2153 fprintf(df, "%d, ", *p2); | |
| 2154 } | |
| 2155 fprintf(df, "\nCurrent position is: "); | |
| 2156 for (p2 = postfix; p2 <= p; p2 ++) | |
| 2157 { | |
| 2158 fprintf(df, "%d, ", *p2); | |
| 2159 } | |
| 2160 #endif | |
| 2161 fprintf(df, "\n--------------------------\n"); | |
| 2162 fclose(df); | |
| 2163 } | |
|
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2164 #endif |
| 4444 | 2165 EMSG(_("E874: (NFA) Could not pop the stack !")); |
| 2166 } | |
| 2167 | |
| 2168 /* | |
| 2169 * Push an item onto the stack. | |
| 2170 */ | |
| 2171 static void | |
| 2172 st_push(s, p, stack_end) | |
| 2173 Frag_T s; | |
| 2174 Frag_T **p; | |
| 2175 Frag_T *stack_end; | |
| 2176 { | |
| 2177 Frag_T *stackp = *p; | |
| 2178 | |
| 2179 if (stackp >= stack_end) | |
| 2180 return; | |
| 2181 *stackp = s; | |
| 2182 *p = *p + 1; | |
| 2183 } | |
| 2184 | |
| 2185 /* | |
| 2186 * Pop an item from the stack. | |
| 2187 */ | |
| 2188 static Frag_T | |
| 2189 st_pop(p, stack) | |
| 2190 Frag_T **p; | |
| 2191 Frag_T *stack; | |
| 2192 { | |
| 2193 Frag_T *stackp; | |
| 2194 | |
| 2195 *p = *p - 1; | |
| 2196 stackp = *p; | |
| 2197 if (stackp < stack) | |
| 2198 return empty; | |
| 2199 return **p; | |
| 2200 } | |
| 2201 | |
| 2202 /* | |
| 2203 * Convert a postfix form into its equivalent NFA. | |
| 2204 * Return the NFA start state on success, NULL otherwise. | |
| 2205 */ | |
| 2206 static nfa_state_T * | |
| 2207 post2nfa(postfix, end, nfa_calc_size) | |
| 2208 int *postfix; | |
| 2209 int *end; | |
| 2210 int nfa_calc_size; | |
| 2211 { | |
| 2212 int *p; | |
| 2213 int mopen; | |
| 2214 int mclose; | |
| 2215 Frag_T *stack = NULL; | |
| 2216 Frag_T *stackp = NULL; | |
| 2217 Frag_T *stack_end = NULL; | |
| 2218 Frag_T e1; | |
| 2219 Frag_T e2; | |
| 2220 Frag_T e; | |
| 2221 nfa_state_T *s; | |
| 2222 nfa_state_T *s1; | |
| 2223 nfa_state_T *matchstate; | |
| 4484 | 2224 nfa_state_T *ret = NULL; |
| 4444 | 2225 |
| 2226 if (postfix == NULL) | |
| 2227 return NULL; | |
| 2228 | |
| 4456 | 2229 #define PUSH(s) st_push((s), &stackp, stack_end) |
| 4444 | 2230 #define POP() st_pop(&stackp, stack); \ |
| 2231 if (stackp < stack) \ | |
| 2232 { \ | |
| 2233 st_error(postfix, end, p); \ | |
| 2234 return NULL; \ | |
| 2235 } | |
| 2236 | |
| 2237 if (nfa_calc_size == FALSE) | |
| 2238 { | |
| 2239 /* Allocate space for the stack. Max states on the stack : nstate */ | |
| 4462 | 2240 stack = (Frag_T *) lalloc((nstate + 1) * sizeof(Frag_T), TRUE); |
| 4444 | 2241 stackp = stack; |
| 4462 | 2242 stack_end = stack + (nstate + 1); |
| 4444 | 2243 } |
| 2244 | |
| 2245 for (p = postfix; p < end; ++p) | |
| 2246 { | |
| 2247 switch (*p) | |
| 2248 { | |
| 2249 case NFA_CONCAT: | |
| 2250 /* Catenation. | |
| 2251 * Pay attention: this operator does not exist | |
| 2252 * in the r.e. itself (it is implicit, really). | |
| 2253 * It is added when r.e. is translated to postfix | |
| 2254 * form in re2post(). | |
| 2255 * | |
| 2256 * No new state added here. */ | |
| 2257 if (nfa_calc_size == TRUE) | |
| 2258 { | |
| 4458 | 2259 /* nstate += 0; */ |
| 4444 | 2260 break; |
| 2261 } | |
| 2262 e2 = POP(); | |
| 2263 e1 = POP(); | |
| 2264 patch(e1.out, e2.start); | |
| 2265 PUSH(frag(e1.start, e2.out)); | |
| 2266 break; | |
| 2267 | |
| 2268 case NFA_NOT: | |
| 2269 /* Negation of a character */ | |
| 2270 if (nfa_calc_size == TRUE) | |
| 2271 { | |
| 4458 | 2272 /* nstate += 0; */ |
| 4444 | 2273 break; |
| 2274 } | |
| 2275 e1 = POP(); | |
| 2276 e1.start->negated = TRUE; | |
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2277 #ifdef FEAT_MBYTE |
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2278 if (e1.start->c == NFA_COMPOSING) |
| 4444 | 2279 e1.start->out1->negated = TRUE; |
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2280 #endif |
| 4444 | 2281 PUSH(e1); |
| 2282 break; | |
| 2283 | |
| 2284 case NFA_OR: | |
| 2285 /* Alternation */ | |
| 2286 if (nfa_calc_size == TRUE) | |
| 2287 { | |
| 4458 | 2288 nstate++; |
| 4444 | 2289 break; |
| 2290 } | |
| 2291 e2 = POP(); | |
| 2292 e1 = POP(); | |
| 2293 s = new_state(NFA_SPLIT, e1.start, e2.start); | |
| 2294 if (s == NULL) | |
| 4484 | 2295 goto theend; |
| 4444 | 2296 PUSH(frag(s, append(e1.out, e2.out))); |
| 2297 break; | |
| 2298 | |
| 2299 case NFA_STAR: | |
| 2300 /* Zero or more */ | |
| 2301 if (nfa_calc_size == TRUE) | |
| 2302 { | |
| 4458 | 2303 nstate++; |
| 4444 | 2304 break; |
| 2305 } | |
| 2306 e = POP(); | |
| 2307 s = new_state(NFA_SPLIT, e.start, NULL); | |
| 2308 if (s == NULL) | |
| 4484 | 2309 goto theend; |
| 4444 | 2310 patch(e.out, s); |
| 2311 PUSH(frag(s, list1(&s->out1))); | |
| 2312 break; | |
| 2313 | |
| 2314 case NFA_QUEST: | |
| 2315 /* one or zero atoms=> greedy match */ | |
| 2316 if (nfa_calc_size == TRUE) | |
| 2317 { | |
| 4458 | 2318 nstate++; |
| 4444 | 2319 break; |
| 2320 } | |
| 2321 e = POP(); | |
| 2322 s = new_state(NFA_SPLIT, e.start, NULL); | |
| 2323 if (s == NULL) | |
| 4484 | 2324 goto theend; |
| 4444 | 2325 PUSH(frag(s, append(e.out, list1(&s->out1)))); |
| 2326 break; | |
| 2327 | |
| 2328 case NFA_QUEST_NONGREEDY: | |
| 2329 /* zero or one atoms => non-greedy match */ | |
| 2330 if (nfa_calc_size == TRUE) | |
| 2331 { | |
| 4458 | 2332 nstate++; |
| 4444 | 2333 break; |
| 2334 } | |
| 2335 e = POP(); | |
| 2336 s = new_state(NFA_SPLIT, NULL, e.start); | |
| 2337 if (s == NULL) | |
| 4484 | 2338 goto theend; |
| 4444 | 2339 PUSH(frag(s, append(e.out, list1(&s->out)))); |
| 2340 break; | |
| 2341 | |
| 2342 case NFA_SKIP_CHAR: | |
| 2343 /* Symbol of 0-length, Used in a repetition | |
| 2344 * with max/min count of 0 */ | |
| 2345 if (nfa_calc_size == TRUE) | |
| 2346 { | |
| 4458 | 2347 nstate++; |
| 4444 | 2348 break; |
| 2349 } | |
| 2350 s = new_state(NFA_SKIP_CHAR, NULL, NULL); | |
| 2351 if (s == NULL) | |
| 4484 | 2352 goto theend; |
| 4444 | 2353 PUSH(frag(s, list1(&s->out))); |
| 2354 break; | |
| 2355 | |
| 2356 case NFA_PREV_ATOM_NO_WIDTH: | |
|
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2357 case NFA_PREV_ATOM_NO_WIDTH_NEG: |
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2358 /* The \@= operator: match the preceding atom with zero width. |
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2359 * The \@! operator: no match for the preceding atom. |
| 4444 | 2360 * Surrounds the preceding atom with START_INVISIBLE and |
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2361 * END_INVISIBLE, similarly to MOPEN. */ |
| 4444 | 2362 |
| 2363 if (nfa_calc_size == TRUE) | |
| 2364 { | |
| 2365 nstate += 2; | |
| 2366 break; | |
| 2367 } | |
| 2368 e = POP(); | |
| 2369 s1 = new_state(NFA_END_INVISIBLE, NULL, NULL); | |
| 2370 if (s1 == NULL) | |
| 4484 | 2371 goto theend; |
| 4444 | 2372 patch(e.out, s1); |
| 2373 | |
| 2374 s = new_state(NFA_START_INVISIBLE, e.start, s1); | |
| 2375 if (s == NULL) | |
| 4484 | 2376 goto theend; |
|
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2377 if (*p == NFA_PREV_ATOM_NO_WIDTH_NEG) |
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2378 { |
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2379 s->negated = TRUE; |
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2380 s1->negated = TRUE; |
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2381 } |
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2382 |
| 4444 | 2383 PUSH(frag(s, list1(&s1->out))); |
| 2384 break; | |
| 2385 | |
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2386 #ifdef FEAT_MBYTE |
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2387 case NFA_COMPOSING: /* char with composing char */ |
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2388 #if 0 |
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2389 /* TODO */ |
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2390 if (regflags & RF_ICOMBINE) |
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2391 { |
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2392 /* use the base character only */ |
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2393 } |
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2394 #endif |
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2395 /* FALLTHROUGH */ |
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2396 #endif |
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2397 |
| 4444 | 2398 case NFA_MOPEN + 0: /* Submatch */ |
| 2399 case NFA_MOPEN + 1: | |
| 2400 case NFA_MOPEN + 2: | |
| 2401 case NFA_MOPEN + 3: | |
| 2402 case NFA_MOPEN + 4: | |
| 2403 case NFA_MOPEN + 5: | |
| 2404 case NFA_MOPEN + 6: | |
| 2405 case NFA_MOPEN + 7: | |
| 2406 case NFA_MOPEN + 8: | |
| 2407 case NFA_MOPEN + 9: | |
| 2408 case NFA_NOPEN: /* \%( "Invisible Submatch" */ | |
| 2409 if (nfa_calc_size == TRUE) | |
| 2410 { | |
| 2411 nstate += 2; | |
| 2412 break; | |
| 2413 } | |
| 2414 | |
| 2415 mopen = *p; | |
| 2416 switch (*p) | |
| 2417 { | |
| 2418 case NFA_NOPEN: | |
| 2419 mclose = NFA_NCLOSE; | |
| 2420 break; | |
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2421 #ifdef FEAT_MBYTE |
| 4444 | 2422 case NFA_COMPOSING: |
| 2423 mclose = NFA_END_COMPOSING; | |
| 2424 break; | |
|
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2425 #endif |
| 4444 | 2426 default: |
| 2427 /* NFA_MOPEN(0) ... NFA_MOPEN(9) */ | |
| 2428 mclose = *p + NSUBEXP; | |
| 2429 break; | |
| 2430 } | |
| 2431 | |
| 2432 /* Allow "NFA_MOPEN" as a valid postfix representation for | |
| 2433 * the empty regexp "". In this case, the NFA will be | |
| 2434 * NFA_MOPEN -> NFA_MCLOSE. Note that this also allows | |
| 2435 * empty groups of parenthesis, and empty mbyte chars */ | |
| 2436 if (stackp == stack) | |
| 2437 { | |
| 2438 s = new_state(mopen, NULL, NULL); | |
| 2439 if (s == NULL) | |
| 4484 | 2440 goto theend; |
| 4444 | 2441 s1 = new_state(mclose, NULL, NULL); |
| 2442 if (s1 == NULL) | |
| 4484 | 2443 goto theend; |
| 4444 | 2444 patch(list1(&s->out), s1); |
| 2445 PUSH(frag(s, list1(&s1->out))); | |
| 2446 break; | |
| 2447 } | |
| 2448 | |
| 2449 /* At least one node was emitted before NFA_MOPEN, so | |
| 2450 * at least one node will be between NFA_MOPEN and NFA_MCLOSE */ | |
| 2451 e = POP(); | |
| 2452 s = new_state(mopen, e.start, NULL); /* `(' */ | |
| 2453 if (s == NULL) | |
| 4484 | 2454 goto theend; |
| 4444 | 2455 |
| 2456 s1 = new_state(mclose, NULL, NULL); /* `)' */ | |
| 2457 if (s1 == NULL) | |
| 4484 | 2458 goto theend; |
| 4444 | 2459 patch(e.out, s1); |
| 2460 | |
|
4531
1be43c095aff
updated for version 7.3.1013
Bram Moolenaar <bram@vim.org>
parents:
4529
diff
changeset
|
2461 #ifdef FEAT_MBYTE |
|
4527
55bcaa1d2749
updated for version 7.3.1011
Bram Moolenaar <bram@vim.org>
parents:
4525
diff
changeset
|
2462 if (mopen == NFA_COMPOSING) |
|
55bcaa1d2749
updated for version 7.3.1011
Bram Moolenaar <bram@vim.org>
parents:
4525
diff
changeset
|
2463 /* COMPOSING->out1 = END_COMPOSING */ |
| 4444 | 2464 patch(list1(&s->out1), s1); |
|
4531
1be43c095aff
updated for version 7.3.1013
Bram Moolenaar <bram@vim.org>
parents:
4529
diff
changeset
|
2465 #endif |
| 4444 | 2466 |
| 2467 PUSH(frag(s, list1(&s1->out))); | |
| 2468 break; | |
| 2469 | |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2470 case NFA_BACKREF1: |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2471 case NFA_BACKREF2: |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2472 case NFA_BACKREF3: |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2473 case NFA_BACKREF4: |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2474 case NFA_BACKREF5: |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2475 case NFA_BACKREF6: |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2476 case NFA_BACKREF7: |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2477 case NFA_BACKREF8: |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2478 case NFA_BACKREF9: |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2479 if (nfa_calc_size == TRUE) |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2480 { |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2481 nstate += 2; |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2482 break; |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2483 } |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2484 s = new_state(*p, NULL, NULL); |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2485 if (s == NULL) |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2486 goto theend; |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2487 s1 = new_state(NFA_SKIP, NULL, NULL); |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2488 if (s1 == NULL) |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2489 goto theend; |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2490 patch(list1(&s->out), s1); |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2491 PUSH(frag(s, list1(&s1->out))); |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2492 break; |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2493 |
|
4583
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
2494 case NFA_LNUM: |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
2495 case NFA_LNUM_GT: |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
2496 case NFA_LNUM_LT: |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
2497 case NFA_VCOL: |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
2498 case NFA_VCOL_GT: |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
2499 case NFA_VCOL_LT: |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
2500 case NFA_COL: |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
2501 case NFA_COL_GT: |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
2502 case NFA_COL_LT: |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
2503 if (nfa_calc_size == TRUE) |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
2504 { |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
2505 nstate += 1; |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
2506 break; |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
2507 } |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
2508 e1 = POP(); |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
2509 s = new_state(*p, NULL, NULL); |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
2510 if (s == NULL) |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
2511 goto theend; |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
2512 s->val = e1.start->c; |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
2513 PUSH(frag(s, list1(&s->out))); |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
2514 break; |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
2515 |
| 4444 | 2516 case NFA_ZSTART: |
| 2517 case NFA_ZEND: | |
| 2518 default: | |
| 2519 /* Operands */ | |
| 2520 if (nfa_calc_size == TRUE) | |
| 2521 { | |
| 4458 | 2522 nstate++; |
| 4444 | 2523 break; |
| 2524 } | |
| 2525 s = new_state(*p, NULL, NULL); | |
| 2526 if (s == NULL) | |
| 4484 | 2527 goto theend; |
| 4444 | 2528 PUSH(frag(s, list1(&s->out))); |
| 2529 break; | |
| 2530 | |
| 2531 } /* switch(*p) */ | |
| 2532 | |
| 2533 } /* for(p = postfix; *p; ++p) */ | |
| 2534 | |
| 2535 if (nfa_calc_size == TRUE) | |
| 2536 { | |
| 4458 | 2537 nstate++; |
| 4484 | 2538 goto theend; /* Return value when counting size is ignored anyway */ |
| 4444 | 2539 } |
| 2540 | |
| 2541 e = POP(); | |
| 2542 if (stackp != stack) | |
| 2543 EMSG_RET_NULL(_("E875: (NFA regexp) (While converting from postfix to NFA), too many states left on stack")); | |
| 2544 | |
| 2545 if (istate >= nstate) | |
| 2546 EMSG_RET_NULL(_("E876: (NFA regexp) Not enough space to store the whole NFA ")); | |
| 2547 | |
| 2548 matchstate = &state_ptr[istate++]; /* the match state */ | |
| 2549 matchstate->c = NFA_MATCH; | |
| 2550 matchstate->out = matchstate->out1 = NULL; | |
| 2551 | |
| 2552 patch(e.out, matchstate); | |
| 4484 | 2553 ret = e.start; |
| 2554 | |
| 2555 theend: | |
| 2556 vim_free(stack); | |
| 2557 return ret; | |
| 4444 | 2558 |
| 2559 #undef POP1 | |
| 2560 #undef PUSH1 | |
| 2561 #undef POP2 | |
| 2562 #undef PUSH2 | |
| 2563 #undef POP | |
| 2564 #undef PUSH | |
| 2565 } | |
| 2566 | |
| 2567 /**************************************************************** | |
| 2568 * NFA execution code. | |
| 2569 ****************************************************************/ | |
| 2570 | |
|
4563
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
2571 typedef struct |
|
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
2572 { |
|
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
2573 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
|
2574 |
|
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
2575 /* 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
|
2576 union |
|
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
2577 { |
|
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
2578 struct multipos |
|
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
2579 { |
|
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
2580 lpos_T start; |
|
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
2581 lpos_T end; |
|
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
2582 } multi[NSUBEXP]; |
|
4563
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
2583 struct linepos |
|
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
2584 { |
|
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
2585 char_u *start; |
|
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
2586 char_u *end; |
|
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
2587 } line[NSUBEXP]; |
|
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
2588 } list; |
|
4563
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
2589 } regsub_T; |
|
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
2590 |
|
4561
4d81fdda8f35
updated for version 7.3.1028
Bram Moolenaar <bram@vim.org>
parents:
4559
diff
changeset
|
2591 /* 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
|
2592 typedef struct |
| 4444 | 2593 { |
| 2594 nfa_state_T *state; | |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2595 int count; |
|
4561
4d81fdda8f35
updated for version 7.3.1028
Bram Moolenaar <bram@vim.org>
parents:
4559
diff
changeset
|
2596 regsub_T sub; /* submatch info, only party used */ |
|
4539
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
2597 } nfa_thread_T; |
|
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
2598 |
|
4561
4d81fdda8f35
updated for version 7.3.1028
Bram Moolenaar <bram@vim.org>
parents:
4559
diff
changeset
|
2599 /* nfa_list_T contains the alternative NFA execution states. */ |
| 4444 | 2600 typedef struct |
| 2601 { | |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2602 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
|
2603 int n; /* nr of states currently in "t" */ |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2604 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
|
2605 int id; /* ID of the list */ |
|
4539
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
2606 } nfa_list_T; |
|
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
2607 |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2608 #ifdef ENABLE_LOG |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2609 static void |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2610 log_subexpr(sub) |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2611 regsub_T *sub; |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2612 { |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2613 int j; |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2614 |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2615 for (j = 0; j < sub->in_use; j++) |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2616 if (REG_MULTI) |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2617 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
|
2618 j, |
|
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
2619 sub->list.multi[j].start.col, |
|
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
2620 (int)sub->list.multi[j].start.lnum, |
|
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
2621 sub->list.multi[j].end.col, |
|
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
2622 (int)sub->list.multi[j].end.lnum); |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2623 else |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2624 fprintf(log_fd, "\n *** group %d, start: \"%s\", end: \"%s\"", |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2625 j, |
|
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
2626 (char *)sub->list.line[j].start, |
|
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
2627 (char *)sub->list.line[j].end); |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2628 fprintf(log_fd, "\n"); |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2629 } |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2630 #endif |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2631 |
|
4561
4d81fdda8f35
updated for version 7.3.1028
Bram Moolenaar <bram@vim.org>
parents:
4559
diff
changeset
|
2632 /* 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
|
2633 static int nfa_match; |
|
4d81fdda8f35
updated for version 7.3.1028
Bram Moolenaar <bram@vim.org>
parents:
4559
diff
changeset
|
2634 |
|
4647
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2635 static int sub_equal __ARGS((regsub_T *sub1, regsub_T *sub2)); |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2636 static void addstate __ARGS((nfa_list_T *l, nfa_state_T *state, regsub_T *sub, int off)); |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2637 static void addstate_here __ARGS((nfa_list_T *l, nfa_state_T *state, regsub_T *sub, int *ip)); |
| 4444 | 2638 |
|
4647
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2639 /* |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2640 * 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
|
2641 */ |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2642 static int |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2643 sub_equal(sub1, sub2) |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2644 regsub_T *sub1; |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2645 regsub_T *sub2; |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2646 { |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2647 int i; |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2648 int todo; |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2649 linenr_T s1, e1; |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2650 linenr_T s2, e2; |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2651 char_u *sp1, *ep1; |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2652 char_u *sp2, *ep2; |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2653 |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2654 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
|
2655 if (REG_MULTI) |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2656 { |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2657 for (i = 0; i < todo; ++i) |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2658 { |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2659 if (i < sub1->in_use) |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2660 { |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2661 s1 = sub1->list.multi[i].start.lnum; |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2662 e1 = sub1->list.multi[i].end.lnum; |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2663 } |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2664 else |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2665 { |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2666 s1 = 0; |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2667 e1 = 0; |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2668 } |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2669 if (i < sub2->in_use) |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2670 { |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2671 s2 = sub2->list.multi[i].start.lnum; |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2672 e2 = sub2->list.multi[i].end.lnum; |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2673 } |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2674 else |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2675 { |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2676 s2 = 0; |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2677 e2 = 0; |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2678 } |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2679 if (s1 != s2 || e1 != e2) |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2680 return FALSE; |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2681 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
|
2682 != sub2->list.multi[i].start.col) |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2683 return FALSE; |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2684 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
|
2685 != sub2->list.multi[i].end.col) |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2686 return FALSE; |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2687 } |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2688 } |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2689 else |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2690 { |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2691 for (i = 0; i < todo; ++i) |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2692 { |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2693 if (i < sub1->in_use) |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2694 { |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2695 sp1 = sub1->list.line[i].start; |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2696 ep1 = sub1->list.line[i].end; |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2697 } |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2698 else |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2699 { |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2700 sp1 = NULL; |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2701 ep1 = NULL; |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2702 } |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2703 if (i < sub2->in_use) |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2704 { |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2705 sp2 = sub2->list.line[i].start; |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2706 ep2 = sub2->list.line[i].end; |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2707 } |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2708 else |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2709 { |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2710 sp2 = NULL; |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2711 ep2 = NULL; |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2712 } |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2713 if (sp1 != sp2 || ep1 != ep2) |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2714 return FALSE; |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2715 } |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2716 } |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2717 |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2718 return TRUE; |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2719 } |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2720 |
| 4444 | 2721 static void |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2722 addstate(l, state, sub, off) |
|
4539
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
2723 nfa_list_T *l; /* runtime state list */ |
| 4444 | 2724 nfa_state_T *state; /* state to update */ |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2725 regsub_T *sub; /* pointers to subexpressions */ |
|
4515
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
2726 int off; /* byte offset, when -1 go to next line */ |
| 4444 | 2727 { |
|
4561
4d81fdda8f35
updated for version 7.3.1028
Bram Moolenaar <bram@vim.org>
parents:
4559
diff
changeset
|
2728 int subidx; |
|
4647
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2729 nfa_thread_T *thread; |
|
4561
4d81fdda8f35
updated for version 7.3.1028
Bram Moolenaar <bram@vim.org>
parents:
4559
diff
changeset
|
2730 lpos_T save_lpos; |
|
4563
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
2731 int save_in_use; |
|
4561
4d81fdda8f35
updated for version 7.3.1028
Bram Moolenaar <bram@vim.org>
parents:
4559
diff
changeset
|
2732 char_u *save_ptr; |
|
4563
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
2733 int i; |
|
4657
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
2734 #ifdef ENABLE_LOG |
|
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
2735 int did_print = FALSE; |
|
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
2736 #endif |
| 4444 | 2737 |
| 2738 if (l == NULL || state == NULL) | |
| 2739 return; | |
| 2740 | |
| 2741 switch (state->c) | |
| 2742 { | |
| 2743 case NFA_SPLIT: | |
| 2744 case NFA_NOT: | |
| 2745 case NFA_NOPEN: | |
| 2746 case NFA_NCLOSE: | |
| 2747 case NFA_MCLOSE: | |
| 2748 case NFA_MCLOSE + 1: | |
| 2749 case NFA_MCLOSE + 2: | |
| 2750 case NFA_MCLOSE + 3: | |
| 2751 case NFA_MCLOSE + 4: | |
| 2752 case NFA_MCLOSE + 5: | |
| 2753 case NFA_MCLOSE + 6: | |
| 2754 case NFA_MCLOSE + 7: | |
| 2755 case NFA_MCLOSE + 8: | |
| 2756 case NFA_MCLOSE + 9: | |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2757 /* 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
|
2758 * "out1" may be added below. */ |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2759 break; |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2760 |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2761 case NFA_MOPEN: |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2762 case NFA_MOPEN + 1: |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2763 case NFA_MOPEN + 2: |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2764 case NFA_MOPEN + 3: |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2765 case NFA_MOPEN + 4: |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2766 case NFA_MOPEN + 5: |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2767 case NFA_MOPEN + 6: |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2768 case NFA_MOPEN + 7: |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2769 case NFA_MOPEN + 8: |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2770 case NFA_MOPEN + 9: |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2771 /* 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
|
2772 * 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
|
2773 if (state->lastlist == l->id) |
|
4657
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
2774 goto skip_add; |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2775 state->lastlist = l->id; |
| 4444 | 2776 break; |
| 2777 | |
| 2778 default: | |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2779 if (state->lastlist == l->id) |
| 4444 | 2780 { |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2781 /* 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
|
2782 * 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
|
2783 if (!nfa_has_backref) |
|
4657
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
2784 { |
|
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
2785 skip_add: |
|
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
2786 #ifdef ENABLE_LOG |
|
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
2787 nfa_set_code(state->c); |
|
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
2788 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
|
2789 abs(state->id), l->id, state->c, code); |
|
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
2790 #endif |
|
4647
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2791 return; |
|
4657
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
2792 } |
|
4647
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2793 |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2794 /* 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
|
2795 * positions. */ |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2796 for (i = 0; i < l->n; ++i) |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2797 { |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2798 thread = &l->t[i]; |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2799 if (thread->state->id == state->id |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2800 && sub_equal(&thread->sub, sub)) |
|
4657
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
2801 goto skip_add; |
|
4647
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2802 } |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2803 } |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2804 |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2805 /* 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
|
2806 * lot) bigger */ |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2807 if (nfa_has_backref && l->n == l->len) |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2808 { |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2809 int newlen = l->len * 3 / 2 + 50; |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2810 |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2811 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
|
2812 l->len = newlen; |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2813 } |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2814 |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2815 /* add the state to the list */ |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2816 state->lastlist = l->id; |
|
4647
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2817 thread = &l->t[l->n++]; |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2818 thread->state = state; |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2819 thread->sub.in_use = sub->in_use; |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2820 if (sub->in_use > 0) |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2821 { |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2822 /* Copy the match start and end positions. */ |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2823 if (REG_MULTI) |
|
4647
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2824 mch_memmove(&thread->sub.list.multi[0], |
|
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
2825 &sub->list.multi[0], |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2826 sizeof(struct multipos) * sub->in_use); |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2827 else |
|
4647
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2828 mch_memmove(&thread->sub.list.line[0], |
|
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
2829 &sub->list.line[0], |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2830 sizeof(struct linepos) * sub->in_use); |
| 4444 | 2831 } |
|
4657
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
2832 #ifdef ENABLE_LOG |
|
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
2833 { |
|
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
2834 int col; |
|
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
2835 |
|
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
2836 if (thread->sub.in_use <= 0) |
|
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
2837 col = -1; |
|
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
2838 else if (REG_MULTI) |
|
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
2839 col = thread->sub.list.multi[0].start.col; |
|
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
2840 else |
|
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
2841 col = (int)(thread->sub.list.line[0].start - regline); |
|
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
2842 nfa_set_code(state->c); |
|
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
2843 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
|
2844 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
|
2845 did_print = TRUE; |
|
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
2846 } |
|
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
2847 #endif |
| 4444 | 2848 } |
| 2849 | |
| 2850 #ifdef ENABLE_LOG | |
|
4657
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
2851 if (!did_print) |
|
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
2852 { |
|
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
2853 int col; |
|
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
2854 |
|
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
2855 if (sub->in_use <= 0) |
|
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
2856 col = -1; |
|
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
2857 else if (REG_MULTI) |
|
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
2858 col = sub->list.multi[0].start.col; |
|
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
2859 else |
|
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
2860 col = (int)(sub->list.line[0].start - regline); |
|
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
2861 nfa_set_code(state->c); |
|
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
2862 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
|
2863 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
|
2864 } |
| 4444 | 2865 #endif |
| 2866 switch (state->c) | |
| 2867 { | |
| 2868 case NFA_MATCH: | |
|
4561
4d81fdda8f35
updated for version 7.3.1028
Bram Moolenaar <bram@vim.org>
parents:
4559
diff
changeset
|
2869 nfa_match = TRUE; |
| 4444 | 2870 break; |
| 2871 | |
| 2872 case NFA_SPLIT: | |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2873 addstate(l, state->out, sub, off); |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2874 addstate(l, state->out1, sub, off); |
| 4444 | 2875 break; |
| 2876 | |
| 2877 #if 0 | |
| 2878 case NFA_END_NEG_RANGE: | |
| 2879 /* Nothing to handle here. nfa_regmatch() will take care of it */ | |
| 2880 break; | |
| 2881 | |
| 2882 case NFA_NOT: | |
| 2883 EMSG(_("E999: (NFA regexp internal error) Should not process NOT node !")); | |
| 2884 #ifdef ENABLE_LOG | |
| 2885 fprintf(f, "\n\n>>> E999: Added state NFA_NOT to a list ... Something went wrong ! Why wasn't it processed already? \n\n"); | |
| 2886 #endif | |
| 2887 break; | |
| 2888 | |
| 2889 case NFA_COMPOSING: | |
| 2890 /* nfa_regmatch() will match all the bytes of this composing char. */ | |
| 2891 break; | |
| 2892 #endif | |
| 2893 | |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2894 case NFA_SKIP_CHAR: |
| 4444 | 2895 case NFA_NOPEN: |
| 2896 case NFA_NCLOSE: | |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2897 addstate(l, state->out, sub, off); |
| 4444 | 2898 break; |
| 2899 | |
| 2900 case NFA_MOPEN + 0: | |
| 2901 case NFA_MOPEN + 1: | |
| 2902 case NFA_MOPEN + 2: | |
| 2903 case NFA_MOPEN + 3: | |
| 2904 case NFA_MOPEN + 4: | |
| 2905 case NFA_MOPEN + 5: | |
| 2906 case NFA_MOPEN + 6: | |
| 2907 case NFA_MOPEN + 7: | |
| 2908 case NFA_MOPEN + 8: | |
| 2909 case NFA_MOPEN + 9: | |
| 2910 case NFA_ZSTART: | |
| 2911 if (state->c == NFA_ZSTART) | |
| 2912 subidx = 0; | |
|
4561
4d81fdda8f35
updated for version 7.3.1028
Bram Moolenaar <bram@vim.org>
parents:
4559
diff
changeset
|
2913 else |
|
4d81fdda8f35
updated for version 7.3.1028
Bram Moolenaar <bram@vim.org>
parents:
4559
diff
changeset
|
2914 subidx = state->c - NFA_MOPEN; |
| 4444 | 2915 |
|
4563
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
2916 /* 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
|
2917 * 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
|
2918 save_ptr = NULL; |
| 4444 | 2919 if (REG_MULTI) |
| 2920 { | |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2921 if (subidx < sub->in_use) |
|
4563
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
2922 { |
|
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
2923 save_lpos = sub->list.multi[subidx].start; |
|
4563
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
2924 save_in_use = -1; |
|
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
2925 } |
|
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
2926 else |
|
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
2927 { |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2928 save_in_use = sub->in_use; |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2929 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
|
2930 { |
|
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
2931 sub->list.multi[i].start.lnum = -1; |
|
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
2932 sub->list.multi[i].end.lnum = -1; |
|
4563
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
2933 } |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2934 sub->in_use = subidx + 1; |
|
4563
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
2935 } |
|
4515
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
2936 if (off == -1) |
|
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
2937 { |
|
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
2938 sub->list.multi[subidx].start.lnum = reglnum + 1; |
|
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
2939 sub->list.multi[subidx].start.col = 0; |
|
4515
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
2940 } |
|
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
2941 else |
|
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
2942 { |
|
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
2943 sub->list.multi[subidx].start.lnum = reglnum; |
|
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
2944 sub->list.multi[subidx].start.col = |
|
4515
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
2945 (colnr_T)(reginput - regline + off); |
|
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
2946 } |
| 4444 | 2947 } |
| 2948 else | |
| 2949 { | |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2950 if (subidx < sub->in_use) |
|
4563
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
2951 { |
|
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
2952 save_ptr = sub->list.line[subidx].start; |
|
4563
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
2953 save_in_use = -1; |
|
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
2954 } |
|
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
2955 else |
|
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
2956 { |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2957 save_in_use = sub->in_use; |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2958 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
|
2959 { |
|
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
2960 sub->list.line[i].start = NULL; |
|
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
2961 sub->list.line[i].end = NULL; |
|
4563
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
2962 } |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2963 sub->in_use = subidx + 1; |
|
4563
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
2964 } |
|
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
2965 sub->list.line[subidx].start = reginput + off; |
| 4444 | 2966 } |
| 2967 | |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2968 addstate(l, state->out, sub, off); |
| 4444 | 2969 |
|
4563
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
2970 if (save_in_use == -1) |
|
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
2971 { |
|
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
2972 if (REG_MULTI) |
|
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
2973 sub->list.multi[subidx].start = save_lpos; |
|
4563
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
2974 else |
|
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
2975 sub->list.line[subidx].start = save_ptr; |
|
4563
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
2976 } |
| 4444 | 2977 else |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2978 sub->in_use = save_in_use; |
| 4444 | 2979 break; |
| 2980 | |
| 2981 case NFA_MCLOSE + 0: | |
|
4553
7b835b2969af
updated for version 7.3.1024
Bram Moolenaar <bram@vim.org>
parents:
4551
diff
changeset
|
2982 if (nfa_has_zend) |
| 4444 | 2983 { |
|
4569
f262fb02889d
updated for version 7.3.1032
Bram Moolenaar <bram@vim.org>
parents:
4567
diff
changeset
|
2984 /* 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
|
2985 * encountered end will be set in nfa_regtry(). */ |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2986 addstate(l, state->out, sub, off); |
| 4444 | 2987 break; |
| 2988 } | |
| 2989 case NFA_MCLOSE + 1: | |
| 2990 case NFA_MCLOSE + 2: | |
| 2991 case NFA_MCLOSE + 3: | |
| 2992 case NFA_MCLOSE + 4: | |
| 2993 case NFA_MCLOSE + 5: | |
| 2994 case NFA_MCLOSE + 6: | |
| 2995 case NFA_MCLOSE + 7: | |
| 2996 case NFA_MCLOSE + 8: | |
| 2997 case NFA_MCLOSE + 9: | |
| 2998 case NFA_ZEND: | |
| 2999 if (state->c == NFA_ZEND) | |
| 3000 subidx = 0; | |
|
4561
4d81fdda8f35
updated for version 7.3.1028
Bram Moolenaar <bram@vim.org>
parents:
4559
diff
changeset
|
3001 else |
|
4d81fdda8f35
updated for version 7.3.1028
Bram Moolenaar <bram@vim.org>
parents:
4559
diff
changeset
|
3002 subidx = state->c - NFA_MCLOSE; |
| 4444 | 3003 |
|
4563
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3004 /* 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
|
3005 * has done that. */ |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3006 save_in_use = sub->in_use; |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3007 if (sub->in_use <= subidx) |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3008 sub->in_use = subidx + 1; |
| 4444 | 3009 if (REG_MULTI) |
| 3010 { | |
|
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3011 save_lpos = sub->list.multi[subidx].end; |
|
4515
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
3012 if (off == -1) |
|
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
3013 { |
|
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3014 sub->list.multi[subidx].end.lnum = reglnum + 1; |
|
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3015 sub->list.multi[subidx].end.col = 0; |
|
4515
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
3016 } |
|
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
3017 else |
|
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
3018 { |
|
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3019 sub->list.multi[subidx].end.lnum = reglnum; |
|
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3020 sub->list.multi[subidx].end.col = |
|
4561
4d81fdda8f35
updated for version 7.3.1028
Bram Moolenaar <bram@vim.org>
parents:
4559
diff
changeset
|
3021 (colnr_T)(reginput - regline + off); |
|
4515
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
3022 } |
| 4444 | 3023 } |
| 3024 else | |
| 3025 { | |
|
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3026 save_ptr = sub->list.line[subidx].end; |
|
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3027 sub->list.line[subidx].end = reginput + off; |
| 4444 | 3028 } |
| 3029 | |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3030 addstate(l, state->out, sub, off); |
| 4444 | 3031 |
| 3032 if (REG_MULTI) | |
|
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3033 sub->list.multi[subidx].end = save_lpos; |
| 4444 | 3034 else |
|
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3035 sub->list.line[subidx].end = save_ptr; |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3036 sub->in_use = save_in_use; |
| 4444 | 3037 break; |
| 3038 } | |
| 3039 } | |
| 3040 | |
| 3041 /* | |
|
4539
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3042 * 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
|
3043 * 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
|
3044 * 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
|
3045 * matters for alternatives. |
|
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3046 */ |
|
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3047 static void |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3048 addstate_here(l, state, sub, ip) |
|
4539
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3049 nfa_list_T *l; /* runtime state list */ |
|
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3050 nfa_state_T *state; /* state to update */ |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3051 regsub_T *sub; /* pointers to subexpressions */ |
|
4539
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3052 int *ip; |
|
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3053 { |
|
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3054 int tlen = l->n; |
|
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3055 int count; |
|
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3056 int i = *ip; |
|
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3057 |
|
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3058 /* first add the state(s) at the end, so that we know how many there are */ |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3059 addstate(l, state, sub, 0); |
|
4539
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3060 |
|
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3061 /* 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
|
3062 if (i + 1 == tlen) |
|
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3063 return; |
|
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3064 |
|
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3065 /* 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
|
3066 count = l->n - tlen; |
|
4647
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3067 if (count == 1) |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3068 { |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3069 /* overwrite the current state */ |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3070 l->t[i] = l->t[l->n - 1]; |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3071 } |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3072 else if (count > 1) |
|
4539
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3073 { |
|
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3074 /* 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
|
3075 * end to the current position */ |
|
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3076 mch_memmove(&(l->t[i + count]), |
|
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3077 &(l->t[i + 1]), |
|
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3078 sizeof(nfa_thread_T) * (l->n - i - 1)); |
|
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3079 mch_memmove(&(l->t[i]), |
|
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3080 &(l->t[l->n - 1]), |
|
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3081 sizeof(nfa_thread_T) * count); |
|
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3082 } |
|
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3083 --l->n; |
|
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3084 *ip = i - 1; |
|
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3085 } |
|
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3086 |
|
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3087 /* |
| 4444 | 3088 * Check character class "class" against current character c. |
| 3089 */ | |
| 3090 static int | |
| 3091 check_char_class(class, c) | |
| 3092 int class; | |
| 3093 int c; | |
| 3094 { | |
| 3095 switch (class) | |
| 3096 { | |
| 3097 case NFA_CLASS_ALNUM: | |
| 4464 | 3098 if (c >= 1 && c <= 255 && isalnum(c)) |
| 4444 | 3099 return OK; |
| 3100 break; | |
| 3101 case NFA_CLASS_ALPHA: | |
| 4464 | 3102 if (c >= 1 && c <= 255 && isalpha(c)) |
| 4444 | 3103 return OK; |
| 3104 break; | |
| 3105 case NFA_CLASS_BLANK: | |
| 3106 if (c == ' ' || c == '\t') | |
| 3107 return OK; | |
| 3108 break; | |
| 3109 case NFA_CLASS_CNTRL: | |
| 4464 | 3110 if (c >= 1 && c <= 255 && iscntrl(c)) |
| 4444 | 3111 return OK; |
| 3112 break; | |
| 3113 case NFA_CLASS_DIGIT: | |
| 3114 if (VIM_ISDIGIT(c)) | |
| 3115 return OK; | |
| 3116 break; | |
| 3117 case NFA_CLASS_GRAPH: | |
| 4464 | 3118 if (c >= 1 && c <= 255 && isgraph(c)) |
| 4444 | 3119 return OK; |
| 3120 break; | |
| 3121 case NFA_CLASS_LOWER: | |
| 3122 if (MB_ISLOWER(c)) | |
| 3123 return OK; | |
| 3124 break; | |
| 3125 case NFA_CLASS_PRINT: | |
| 3126 if (vim_isprintc(c)) | |
| 3127 return OK; | |
| 3128 break; | |
| 3129 case NFA_CLASS_PUNCT: | |
| 4464 | 3130 if (c >= 1 && c <= 255 && ispunct(c)) |
| 4444 | 3131 return OK; |
| 3132 break; | |
| 3133 case NFA_CLASS_SPACE: | |
| 3134 if ((c >=9 && c <= 13) || (c == ' ')) | |
| 3135 return OK; | |
| 3136 break; | |
| 3137 case NFA_CLASS_UPPER: | |
| 3138 if (MB_ISUPPER(c)) | |
| 3139 return OK; | |
| 3140 break; | |
| 3141 case NFA_CLASS_XDIGIT: | |
| 3142 if (vim_isxdigit(c)) | |
| 3143 return OK; | |
| 3144 break; | |
| 3145 case NFA_CLASS_TAB: | |
| 3146 if (c == '\t') | |
| 3147 return OK; | |
| 3148 break; | |
| 3149 case NFA_CLASS_RETURN: | |
| 3150 if (c == '\r') | |
| 3151 return OK; | |
| 3152 break; | |
| 3153 case NFA_CLASS_BACKSPACE: | |
| 3154 if (c == '\b') | |
| 3155 return OK; | |
| 3156 break; | |
| 3157 case NFA_CLASS_ESCAPE: | |
| 3158 if (c == '\033') | |
| 3159 return OK; | |
| 3160 break; | |
| 3161 | |
| 3162 default: | |
| 3163 /* should not be here :P */ | |
| 3164 EMSG_RET_FAIL(_("E877: (NFA regexp) Invalid character class ")); | |
| 3165 } | |
| 3166 return FAIL; | |
| 3167 } | |
| 3168 | |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3169 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
|
3170 |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3171 /* |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3172 * Check for a match with subexpression "subidx". |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3173 * return TRUE if it matches. |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3174 */ |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3175 static int |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3176 match_backref(sub, subidx, bytelen) |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3177 regsub_T *sub; /* pointers to subexpressions */ |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3178 int subidx; |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3179 int *bytelen; /* out: length of match in bytes */ |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3180 { |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3181 int len; |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3182 |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3183 if (sub->in_use <= subidx) |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3184 { |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3185 retempty: |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3186 /* backref was not set, match an empty string */ |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3187 *bytelen = 0; |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3188 return TRUE; |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3189 } |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3190 |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3191 if (REG_MULTI) |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3192 { |
|
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3193 if (sub->list.multi[subidx].start.lnum < 0 |
|
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3194 || sub->list.multi[subidx].end.lnum < 0) |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3195 goto retempty; |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3196 /* TODO: line breaks */ |
|
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3197 len = sub->list.multi[subidx].end.col |
|
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3198 - sub->list.multi[subidx].start.col; |
|
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3199 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
|
3200 reginput, &len) == 0) |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3201 { |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3202 *bytelen = len; |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3203 return TRUE; |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3204 } |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3205 } |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3206 else |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3207 { |
|
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3208 if (sub->list.line[subidx].start == NULL |
|
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3209 || sub->list.line[subidx].end == NULL) |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3210 goto retempty; |
|
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3211 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
|
3212 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
|
3213 { |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3214 *bytelen = len; |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3215 return TRUE; |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3216 } |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3217 } |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3218 return FALSE; |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3219 } |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3220 |
| 4444 | 3221 /* |
| 3222 * Set all NFA nodes' list ID equal to -1. | |
| 3223 */ | |
| 3224 static void | |
| 3225 nfa_set_neg_listids(start) | |
| 3226 nfa_state_T *start; | |
| 3227 { | |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3228 if (start != NULL && start->lastlist >= 0) |
| 4444 | 3229 { |
| 3230 start->lastlist = -1; | |
| 3231 nfa_set_neg_listids(start->out); | |
| 3232 nfa_set_neg_listids(start->out1); | |
| 3233 } | |
| 3234 } | |
| 3235 | |
| 3236 /* | |
| 3237 * Set all NFA nodes' list ID equal to 0. | |
| 3238 */ | |
| 3239 static void | |
| 3240 nfa_set_null_listids(start) | |
| 3241 nfa_state_T *start; | |
| 3242 { | |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3243 if (start != NULL && start->lastlist == -1) |
| 4444 | 3244 { |
| 3245 start->lastlist = 0; | |
| 3246 nfa_set_null_listids(start->out); | |
| 3247 nfa_set_null_listids(start->out1); | |
| 3248 } | |
| 3249 } | |
| 3250 | |
| 3251 /* | |
| 3252 * Save list IDs for all NFA states in "list". | |
| 3253 */ | |
| 3254 static void | |
| 3255 nfa_save_listids(start, list) | |
| 3256 nfa_state_T *start; | |
| 3257 int *list; | |
| 3258 { | |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3259 if (start != NULL && start->lastlist != -1) |
| 4444 | 3260 { |
| 3261 list[abs(start->id)] = start->lastlist; | |
| 3262 start->lastlist = -1; | |
| 3263 nfa_save_listids(start->out, list); | |
| 3264 nfa_save_listids(start->out1, list); | |
| 3265 } | |
| 3266 } | |
| 3267 | |
| 3268 /* | |
| 3269 * Restore list IDs from "list" to all NFA states. | |
| 3270 */ | |
| 3271 static void | |
| 3272 nfa_restore_listids(start, list) | |
| 3273 nfa_state_T *start; | |
| 3274 int *list; | |
| 3275 { | |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3276 if (start != NULL && start->lastlist == -1) |
| 4444 | 3277 { |
| 3278 start->lastlist = list[abs(start->id)]; | |
| 3279 nfa_restore_listids(start->out, list); | |
| 3280 nfa_restore_listids(start->out1, list); | |
| 3281 } | |
| 3282 } | |
| 3283 | |
|
4583
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
3284 static int |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
3285 nfa_re_num_cmp(val, op, pos) |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
3286 long_u val; |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
3287 int op; |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
3288 long_u pos; |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
3289 { |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
3290 if (op == 1) return pos > val; |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
3291 if (op == 2) return pos < val; |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
3292 return val == pos; |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
3293 } |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
3294 |
|
4563
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3295 static int nfa_regmatch __ARGS((nfa_state_T *start, regsub_T *submatch, regsub_T *m)); |
|
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3296 |
| 4444 | 3297 /* |
| 3298 * Main matching routine. | |
| 3299 * | |
| 3300 * Run NFA to determine whether it matches reginput. | |
| 3301 * | |
| 3302 * Return TRUE if there is a match, FALSE otherwise. | |
| 3303 * Note: Caller must ensure that: start != NULL. | |
| 3304 */ | |
| 3305 static int | |
| 3306 nfa_regmatch(start, submatch, m) | |
| 3307 nfa_state_T *start; | |
| 3308 regsub_T *submatch; | |
| 3309 regsub_T *m; | |
| 3310 { | |
| 3311 int result; | |
| 3312 int size = 0; | |
| 3313 int flag = 0; | |
|
4539
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3314 int go_to_nextline = FALSE; |
|
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3315 nfa_thread_T *t; |
|
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3316 nfa_list_T list[3]; |
|
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3317 nfa_list_T *listtbl[2][2]; |
|
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3318 nfa_list_T *ll; |
| 4444 | 3319 int listid = 1; |
|
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
3320 int listidx; |
|
4539
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3321 nfa_list_T *thislist; |
|
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3322 nfa_list_T *nextlist; |
|
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3323 nfa_list_T *neglist; |
| 4444 | 3324 int *listids = NULL; |
| 4460 | 3325 #ifdef NFA_REGEXP_DEBUG_LOG |
|
4531
1be43c095aff
updated for version 7.3.1013
Bram Moolenaar <bram@vim.org>
parents:
4529
diff
changeset
|
3326 FILE *debug = fopen(NFA_REGEXP_DEBUG_LOG, "a"); |
| 4444 | 3327 |
| 3328 if (debug == NULL) | |
| 3329 { | |
|
4531
1be43c095aff
updated for version 7.3.1013
Bram Moolenaar <bram@vim.org>
parents:
4529
diff
changeset
|
3330 EMSG2(_("(NFA) COULD NOT OPEN %s !"), NFA_REGEXP_DEBUG_LOG); |
| 4444 | 3331 return FALSE; |
| 3332 } | |
| 3333 #endif | |
|
4561
4d81fdda8f35
updated for version 7.3.1028
Bram Moolenaar <bram@vim.org>
parents:
4559
diff
changeset
|
3334 nfa_match = FALSE; |
| 4444 | 3335 |
|
4563
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3336 /* Allocate memory for the lists of nodes. */ |
|
4539
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3337 size = (nstate + 1) * sizeof(nfa_thread_T); |
|
4647
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3338 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
|
3339 list[0].len = nstate + 1; |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3340 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
|
3341 list[1].len = nstate + 1; |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3342 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
|
3343 list[2].len = nstate + 1; |
| 4444 | 3344 if (list[0].t == NULL || list[1].t == NULL || list[2].t == NULL) |
| 3345 goto theend; | |
| 3346 | |
| 3347 #ifdef ENABLE_LOG | |
|
4531
1be43c095aff
updated for version 7.3.1013
Bram Moolenaar <bram@vim.org>
parents:
4529
diff
changeset
|
3348 log_fd = fopen(NFA_REGEXP_RUN_LOG, "a"); |
| 4444 | 3349 if (log_fd != NULL) |
| 3350 { | |
| 3351 fprintf(log_fd, "**********************************\n"); | |
| 3352 nfa_set_code(start->c); | |
| 3353 fprintf(log_fd, " RUNNING nfa_regmatch() starting with state %d, code %s\n", | |
| 3354 abs(start->id), code); | |
| 3355 fprintf(log_fd, "**********************************\n"); | |
| 3356 } | |
| 3357 else | |
| 3358 { | |
| 3359 EMSG(_("Could not open temporary log file for writing, displaying on stderr ... ")); | |
| 3360 log_fd = stderr; | |
| 3361 } | |
| 3362 #endif | |
| 3363 | |
| 3364 thislist = &list[0]; | |
| 3365 thislist->n = 0; | |
| 3366 nextlist = &list[1]; | |
| 3367 nextlist->n = 0; | |
| 3368 neglist = &list[2]; | |
| 3369 neglist->n = 0; | |
| 3370 #ifdef ENABLE_LOG | |
| 3371 fprintf(log_fd, "(---) STARTSTATE\n"); | |
| 3372 #endif | |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3373 thislist->id = listid; |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3374 addstate(thislist, start, m, 0); |
| 4444 | 3375 |
| 3376 /* There are two cases when the NFA advances: 1. input char matches the | |
| 3377 * NFA node and 2. input char does not match the NFA node, but the next | |
| 3378 * node is NFA_NOT. The following macro calls addstate() according to | |
| 3379 * these rules. It is used A LOT, so use the "listtbl" table for speed */ | |
| 3380 listtbl[0][0] = NULL; | |
| 3381 listtbl[0][1] = neglist; | |
| 3382 listtbl[1][0] = nextlist; | |
| 3383 listtbl[1][1] = NULL; | |
| 3384 #define ADD_POS_NEG_STATE(node) \ | |
| 3385 ll = listtbl[result ? 1 : 0][node->negated]; \ | |
| 3386 if (ll != NULL) \ | |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3387 addstate(ll, node->out , &t->sub, clen); |
| 4444 | 3388 |
| 3389 | |
| 3390 /* | |
| 3391 * Run for each character. | |
| 3392 */ | |
|
4515
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
3393 for (;;) |
|
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
3394 { |
|
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
3395 int curc; |
|
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
3396 int clen; |
|
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
3397 |
| 4444 | 3398 #ifdef FEAT_MBYTE |
| 3399 if (has_mbyte) | |
| 3400 { | |
|
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
3401 curc = (*mb_ptr2char)(reginput); |
|
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
3402 clen = (*mb_ptr2len)(reginput); |
| 4444 | 3403 } |
| 3404 else | |
| 3405 #endif | |
| 3406 { | |
|
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
3407 curc = *reginput; |
|
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
3408 clen = 1; |
| 4444 | 3409 } |
|
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
3410 if (curc == NUL) |
|
4515
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
3411 { |
|
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
3412 clen = 0; |
|
4515
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
3413 go_to_nextline = FALSE; |
|
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
3414 } |
| 4444 | 3415 |
| 3416 /* swap lists */ | |
| 3417 thislist = &list[flag]; | |
| 3418 nextlist = &list[flag ^= 1]; | |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3419 nextlist->n = 0; /* clear nextlist */ |
| 4444 | 3420 listtbl[1][0] = nextlist; |
| 3421 ++listid; | |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3422 thislist->id = listid; |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3423 nextlist->id = listid + 1; |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3424 neglist->id = listid + 1; |
| 4444 | 3425 |
| 3426 #ifdef ENABLE_LOG | |
| 3427 fprintf(log_fd, "------------------------------------------\n"); | |
| 3428 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
|
3429 fprintf(log_fd, ">>> Advanced one character ... Current char is %c (code %d) \n", curc, (int)curc); |
| 4444 | 3430 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
|
3431 { |
|
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
3432 int i; |
|
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
3433 |
|
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
3434 for (i = 0; i < thislist->n; i++) |
|
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
3435 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
|
3436 } |
| 4444 | 3437 fprintf(log_fd, "\n"); |
| 3438 #endif | |
| 3439 | |
| 4460 | 3440 #ifdef NFA_REGEXP_DEBUG_LOG |
| 4444 | 3441 fprintf(debug, "\n-------------------\n"); |
| 3442 #endif | |
| 4480 | 3443 /* |
| 3444 * If the state lists are empty we can stop. | |
| 3445 */ | |
| 3446 if (thislist->n == 0 && neglist->n == 0) | |
| 3447 break; | |
| 4444 | 3448 |
| 3449 /* compute nextlist */ | |
|
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
3450 for (listidx = 0; listidx < thislist->n || neglist->n > 0; ++listidx) |
| 4444 | 3451 { |
| 3452 if (neglist->n > 0) | |
| 3453 { | |
| 3454 t = &neglist->t[0]; | |
| 4468 | 3455 neglist->n--; |
|
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
3456 listidx--; |
| 4444 | 3457 } |
| 3458 else | |
|
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
3459 t = &thislist->t[listidx]; |
| 4444 | 3460 |
| 4460 | 3461 #ifdef NFA_REGEXP_DEBUG_LOG |
| 4444 | 3462 nfa_set_code(t->state->c); |
| 3463 fprintf(debug, "%s, ", code); | |
| 3464 #endif | |
| 3465 #ifdef ENABLE_LOG | |
|
4657
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3466 { |
|
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3467 int col; |
|
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3468 |
|
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3469 if (t->sub.in_use <= 0) |
|
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3470 col = -1; |
|
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3471 else if (REG_MULTI) |
|
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3472 col = t->sub.list.multi[0].start.col; |
|
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3473 else |
|
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3474 col = (int)(t->sub.list.line[0].start - regline); |
|
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3475 nfa_set_code(t->state->c); |
|
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3476 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
|
3477 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
|
3478 } |
| 4444 | 3479 #endif |
| 3480 | |
| 3481 /* | |
| 3482 * Handle the possible codes of the current state. | |
| 3483 * The most important is NFA_MATCH. | |
| 3484 */ | |
| 3485 switch (t->state->c) | |
| 3486 { | |
| 3487 case NFA_MATCH: | |
|
4567
96c1a7850097
updated for version 7.3.1031
Bram Moolenaar <bram@vim.org>
parents:
4565
diff
changeset
|
3488 { |
|
96c1a7850097
updated for version 7.3.1031
Bram Moolenaar <bram@vim.org>
parents:
4565
diff
changeset
|
3489 int j; |
|
96c1a7850097
updated for version 7.3.1031
Bram Moolenaar <bram@vim.org>
parents:
4565
diff
changeset
|
3490 |
|
4561
4d81fdda8f35
updated for version 7.3.1028
Bram Moolenaar <bram@vim.org>
parents:
4559
diff
changeset
|
3491 nfa_match = TRUE; |
|
4563
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3492 submatch->in_use = t->sub.in_use; |
|
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3493 if (REG_MULTI) |
|
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3494 for (j = 0; j < submatch->in_use; j++) |
|
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3495 { |
|
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3496 submatch->list.multi[j].start = |
|
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3497 t->sub.list.multi[j].start; |
|
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3498 submatch->list.multi[j].end = t->sub.list.multi[j].end; |
|
4563
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3499 } |
|
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3500 else |
|
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3501 for (j = 0; j < submatch->in_use; j++) |
|
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3502 { |
|
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3503 submatch->list.line[j].start = |
|
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3504 t->sub.list.line[j].start; |
|
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3505 submatch->list.line[j].end = t->sub.list.line[j].end; |
|
4563
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3506 } |
| 4444 | 3507 #ifdef ENABLE_LOG |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3508 log_subexpr(&t->sub); |
| 4444 | 3509 #endif |
|
4515
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
3510 /* 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
|
3511 * 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
|
3512 * 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
|
3513 * correct. */ |
|
7b835b2969af
updated for version 7.3.1024
Bram Moolenaar <bram@vim.org>
parents:
4551
diff
changeset
|
3514 if (nextlist->n == 0 && neglist->n == 0) |
|
7b835b2969af
updated for version 7.3.1024
Bram Moolenaar <bram@vim.org>
parents:
4551
diff
changeset
|
3515 clen = 0; |
|
4515
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
3516 goto nextchar; |
|
4567
96c1a7850097
updated for version 7.3.1031
Bram Moolenaar <bram@vim.org>
parents:
4565
diff
changeset
|
3517 } |
| 4444 | 3518 |
| 3519 case NFA_END_INVISIBLE: | |
| 3520 /* This is only encountered after a NFA_START_INVISIBLE node. | |
| 3521 * They surround a zero-width group, used with "\@=" and "\&". | |
| 3522 * If we got here, it means that the current "invisible" group | |
| 3523 * finished successfully, so return control to the parent | |
| 3524 * nfa_regmatch(). Submatches are stored in *m, and used in | |
| 3525 * the parent call. */ | |
| 3526 if (start->c == NFA_MOPEN + 0) | |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3527 addstate_here(thislist, t->state->out, &t->sub, &listidx); |
| 4444 | 3528 else |
| 3529 { | |
|
4661
0dce3d812e7a
updated for version 7.3.1078
Bram Moolenaar <bram@vim.org>
parents:
4657
diff
changeset
|
3530 /* do not set submatches for \@! */ |
|
0dce3d812e7a
updated for version 7.3.1078
Bram Moolenaar <bram@vim.org>
parents:
4657
diff
changeset
|
3531 if (!t->state->negated) |
|
0dce3d812e7a
updated for version 7.3.1078
Bram Moolenaar <bram@vim.org>
parents:
4657
diff
changeset
|
3532 /* TODO: only copy positions in use. */ |
|
0dce3d812e7a
updated for version 7.3.1078
Bram Moolenaar <bram@vim.org>
parents:
4657
diff
changeset
|
3533 *m = t->sub; |
|
4561
4d81fdda8f35
updated for version 7.3.1028
Bram Moolenaar <bram@vim.org>
parents:
4559
diff
changeset
|
3534 nfa_match = TRUE; |
| 4444 | 3535 } |
| 3536 break; | |
| 3537 | |
| 3538 case NFA_START_INVISIBLE: | |
|
4669
2d15582e132f
updated for version 7.3.1082
Bram Moolenaar <bram@vim.org>
parents:
4667
diff
changeset
|
3539 { |
|
2d15582e132f
updated for version 7.3.1082
Bram Moolenaar <bram@vim.org>
parents:
4667
diff
changeset
|
3540 char_u *save_reginput = reginput; |
|
2d15582e132f
updated for version 7.3.1082
Bram Moolenaar <bram@vim.org>
parents:
4667
diff
changeset
|
3541 char_u *save_regline = regline; |
|
2d15582e132f
updated for version 7.3.1082
Bram Moolenaar <bram@vim.org>
parents:
4667
diff
changeset
|
3542 int save_reglnum = reglnum; |
|
2d15582e132f
updated for version 7.3.1082
Bram Moolenaar <bram@vim.org>
parents:
4667
diff
changeset
|
3543 int save_nfa_match = nfa_match; |
|
2d15582e132f
updated for version 7.3.1082
Bram Moolenaar <bram@vim.org>
parents:
4667
diff
changeset
|
3544 |
|
2d15582e132f
updated for version 7.3.1082
Bram Moolenaar <bram@vim.org>
parents:
4667
diff
changeset
|
3545 /* 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
|
3546 * 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
|
3547 * NFA_END_INVISIBLE */ |
| 4444 | 3548 if (listids == NULL) |
| 3549 { | |
|
4669
2d15582e132f
updated for version 7.3.1082
Bram Moolenaar <bram@vim.org>
parents:
4667
diff
changeset
|
3550 listids = (int *)lalloc(sizeof(int) * nstate, TRUE); |
| 4444 | 3551 if (listids == NULL) |
| 3552 { | |
| 3553 EMSG(_("E878: (NFA) Could not allocate memory for branch traversal!")); | |
| 3554 return 0; | |
| 3555 } | |
| 3556 } | |
| 3557 #ifdef ENABLE_LOG | |
| 3558 if (log_fd != stderr) | |
| 3559 fclose(log_fd); | |
| 3560 log_fd = NULL; | |
| 3561 #endif | |
| 3562 /* Have to clear the listid field of the NFA nodes, so that | |
| 3563 * nfa_regmatch() and addstate() can run properly after | |
| 3564 * recursion. */ | |
| 3565 nfa_save_listids(start, listids); | |
| 3566 nfa_set_null_listids(start); | |
| 3567 result = nfa_regmatch(t->state->out, submatch, m); | |
| 3568 nfa_set_neg_listids(start); | |
| 3569 nfa_restore_listids(start, listids); | |
|
4669
2d15582e132f
updated for version 7.3.1082
Bram Moolenaar <bram@vim.org>
parents:
4667
diff
changeset
|
3570 |
|
2d15582e132f
updated for version 7.3.1082
Bram Moolenaar <bram@vim.org>
parents:
4667
diff
changeset
|
3571 /* restore position in input text */ |
|
2d15582e132f
updated for version 7.3.1082
Bram Moolenaar <bram@vim.org>
parents:
4667
diff
changeset
|
3572 reginput = save_reginput; |
|
2d15582e132f
updated for version 7.3.1082
Bram Moolenaar <bram@vim.org>
parents:
4667
diff
changeset
|
3573 regline = save_regline; |
|
2d15582e132f
updated for version 7.3.1082
Bram Moolenaar <bram@vim.org>
parents:
4667
diff
changeset
|
3574 reglnum = save_reglnum; |
|
2d15582e132f
updated for version 7.3.1082
Bram Moolenaar <bram@vim.org>
parents:
4667
diff
changeset
|
3575 nfa_match = save_nfa_match; |
| 4444 | 3576 |
| 3577 #ifdef ENABLE_LOG | |
|
4531
1be43c095aff
updated for version 7.3.1013
Bram Moolenaar <bram@vim.org>
parents:
4529
diff
changeset
|
3578 log_fd = fopen(NFA_REGEXP_RUN_LOG, "a"); |
| 4444 | 3579 if (log_fd != NULL) |
| 3580 { | |
| 3581 fprintf(log_fd, "****************************\n"); | |
| 3582 fprintf(log_fd, "FINISHED RUNNING nfa_regmatch() recursively\n"); | |
| 3583 fprintf(log_fd, "MATCH = %s\n", result == TRUE ? "OK" : "FALSE"); | |
| 3584 fprintf(log_fd, "****************************\n"); | |
| 3585 } | |
| 3586 else | |
| 3587 { | |
| 3588 EMSG(_("Could not open temporary log file for writing, displaying on stderr ... ")); | |
| 3589 log_fd = stderr; | |
| 3590 } | |
| 3591 #endif | |
|
4661
0dce3d812e7a
updated for version 7.3.1078
Bram Moolenaar <bram@vim.org>
parents:
4657
diff
changeset
|
3592 /* 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
|
3593 if (result != t->state->negated) |
| 4444 | 3594 { |
|
4567
96c1a7850097
updated for version 7.3.1031
Bram Moolenaar <bram@vim.org>
parents:
4565
diff
changeset
|
3595 int j; |
|
96c1a7850097
updated for version 7.3.1031
Bram Moolenaar <bram@vim.org>
parents:
4565
diff
changeset
|
3596 |
| 4444 | 3597 /* Copy submatch info from the recursive call */ |
| 3598 if (REG_MULTI) | |
|
4563
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3599 for (j = 1; j < m->in_use; j++) |
| 4444 | 3600 { |
|
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3601 t->sub.list.multi[j].start = m->list.multi[j].start; |
|
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3602 t->sub.list.multi[j].end = m->list.multi[j].end; |
| 4444 | 3603 } |
| 3604 else | |
|
4563
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3605 for (j = 1; j < m->in_use; j++) |
| 4444 | 3606 { |
|
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3607 t->sub.list.line[j].start = m->list.line[j].start; |
|
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3608 t->sub.list.line[j].end = m->list.line[j].end; |
| 4444 | 3609 } |
|
4657
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3610 if (m->in_use > t->sub.in_use) |
|
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3611 t->sub.in_use = m->in_use; |
|
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3612 |
|
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3613 /* 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
|
3614 * Add it to the current list (zero-width match). */ |
|
4539
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3615 addstate_here(thislist, t->state->out1->out, &t->sub, |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3616 &listidx); |
| 4444 | 3617 } |
| 3618 break; | |
|
4669
2d15582e132f
updated for version 7.3.1082
Bram Moolenaar <bram@vim.org>
parents:
4667
diff
changeset
|
3619 } |
| 4444 | 3620 |
| 3621 case NFA_BOL: | |
| 3622 if (reginput == regline) | |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3623 addstate_here(thislist, t->state->out, &t->sub, &listidx); |
| 4444 | 3624 break; |
| 3625 | |
| 3626 case NFA_EOL: | |
|
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
3627 if (curc == NUL) |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3628 addstate_here(thislist, t->state->out, &t->sub, &listidx); |
| 4444 | 3629 break; |
| 3630 | |
| 3631 case NFA_BOW: | |
| 3632 { | |
| 3633 int bow = TRUE; | |
| 3634 | |
|
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
3635 if (curc == NUL) |
| 4444 | 3636 bow = FALSE; |
| 3637 #ifdef FEAT_MBYTE | |
| 3638 else if (has_mbyte) | |
| 3639 { | |
| 3640 int this_class; | |
| 3641 | |
| 3642 /* Get class of current and previous char (if it exists). */ | |
| 4503 | 3643 this_class = mb_get_class_buf(reginput, reg_buf); |
| 4444 | 3644 if (this_class <= 1) |
| 3645 bow = FALSE; | |
| 3646 else if (reg_prev_class() == this_class) | |
| 3647 bow = FALSE; | |
| 3648 } | |
| 3649 #endif | |
|
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
3650 else if (!vim_iswordc_buf(curc, reg_buf) |
| 4503 | 3651 || (reginput > regline |
| 3652 && vim_iswordc_buf(reginput[-1], reg_buf))) | |
| 4444 | 3653 bow = FALSE; |
| 3654 if (bow) | |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3655 addstate_here(thislist, t->state->out, &t->sub, &listidx); |
| 4444 | 3656 break; |
| 3657 } | |
| 3658 | |
| 3659 case NFA_EOW: | |
| 3660 { | |
| 3661 int eow = TRUE; | |
| 3662 | |
| 3663 if (reginput == regline) | |
| 3664 eow = FALSE; | |
| 3665 #ifdef FEAT_MBYTE | |
| 3666 else if (has_mbyte) | |
| 3667 { | |
| 3668 int this_class, prev_class; | |
| 3669 | |
| 3670 /* Get class of current and previous char (if it exists). */ | |
| 4503 | 3671 this_class = mb_get_class_buf(reginput, reg_buf); |
| 4444 | 3672 prev_class = reg_prev_class(); |
| 3673 if (this_class == prev_class | |
| 3674 || prev_class == 0 || prev_class == 1) | |
| 3675 eow = FALSE; | |
| 3676 } | |
| 3677 #endif | |
| 4503 | 3678 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
|
3679 || (reginput[0] != NUL |
|
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
3680 && vim_iswordc_buf(curc, reg_buf))) |
| 4444 | 3681 eow = FALSE; |
| 3682 if (eow) | |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3683 addstate_here(thislist, t->state->out, &t->sub, &listidx); |
| 4444 | 3684 break; |
| 3685 } | |
| 3686 | |
|
4671
b3c59716e700
updated for version 7.3.1083
Bram Moolenaar <bram@vim.org>
parents:
4669
diff
changeset
|
3687 case NFA_BOF: |
|
b3c59716e700
updated for version 7.3.1083
Bram Moolenaar <bram@vim.org>
parents:
4669
diff
changeset
|
3688 if (reglnum == 0 && reginput == regline |
|
b3c59716e700
updated for version 7.3.1083
Bram Moolenaar <bram@vim.org>
parents:
4669
diff
changeset
|
3689 && (!REG_MULTI || reg_firstlnum == 1)) |
|
b3c59716e700
updated for version 7.3.1083
Bram Moolenaar <bram@vim.org>
parents:
4669
diff
changeset
|
3690 addstate_here(thislist, t->state->out, &t->sub, &listidx); |
|
b3c59716e700
updated for version 7.3.1083
Bram Moolenaar <bram@vim.org>
parents:
4669
diff
changeset
|
3691 break; |
|
b3c59716e700
updated for version 7.3.1083
Bram Moolenaar <bram@vim.org>
parents:
4669
diff
changeset
|
3692 |
|
b3c59716e700
updated for version 7.3.1083
Bram Moolenaar <bram@vim.org>
parents:
4669
diff
changeset
|
3693 case NFA_EOF: |
|
b3c59716e700
updated for version 7.3.1083
Bram Moolenaar <bram@vim.org>
parents:
4669
diff
changeset
|
3694 if (reglnum == reg_maxline && curc == NUL) |
|
b3c59716e700
updated for version 7.3.1083
Bram Moolenaar <bram@vim.org>
parents:
4669
diff
changeset
|
3695 addstate_here(thislist, t->state->out, &t->sub, &listidx); |
|
b3c59716e700
updated for version 7.3.1083
Bram Moolenaar <bram@vim.org>
parents:
4669
diff
changeset
|
3696 break; |
|
b3c59716e700
updated for version 7.3.1083
Bram Moolenaar <bram@vim.org>
parents:
4669
diff
changeset
|
3697 |
|
4527
55bcaa1d2749
updated for version 7.3.1011
Bram Moolenaar <bram@vim.org>
parents:
4525
diff
changeset
|
3698 #ifdef FEAT_MBYTE |
| 4444 | 3699 case NFA_COMPOSING: |
|
4527
55bcaa1d2749
updated for version 7.3.1011
Bram Moolenaar <bram@vim.org>
parents:
4525
diff
changeset
|
3700 { |
|
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
3701 int mc = curc; |
|
4531
1be43c095aff
updated for version 7.3.1013
Bram Moolenaar <bram@vim.org>
parents:
4529
diff
changeset
|
3702 int len = 0; |
|
1be43c095aff
updated for version 7.3.1013
Bram Moolenaar <bram@vim.org>
parents:
4529
diff
changeset
|
3703 nfa_state_T *end; |
|
1be43c095aff
updated for version 7.3.1013
Bram Moolenaar <bram@vim.org>
parents:
4529
diff
changeset
|
3704 nfa_state_T *sta; |
|
4547
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
3705 int cchars[MAX_MCO]; |
|
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
3706 int ccount = 0; |
|
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
3707 int j; |
|
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
3708 |
| 4444 | 3709 sta = t->state->out; |
|
4527
55bcaa1d2749
updated for version 7.3.1011
Bram Moolenaar <bram@vim.org>
parents:
4525
diff
changeset
|
3710 len = 0; |
|
4535
45f97c349537
updated for version 7.3.1015
Bram Moolenaar <bram@vim.org>
parents:
4533
diff
changeset
|
3711 if (utf_iscomposing(sta->c)) |
|
45f97c349537
updated for version 7.3.1015
Bram Moolenaar <bram@vim.org>
parents:
4533
diff
changeset
|
3712 { |
|
45f97c349537
updated for version 7.3.1015
Bram Moolenaar <bram@vim.org>
parents:
4533
diff
changeset
|
3713 /* Only match composing character(s), ignore base |
|
45f97c349537
updated for version 7.3.1015
Bram Moolenaar <bram@vim.org>
parents:
4533
diff
changeset
|
3714 * character. Used for ".{composing}" and "{composing}" |
|
45f97c349537
updated for version 7.3.1015
Bram Moolenaar <bram@vim.org>
parents:
4533
diff
changeset
|
3715 * (no preceding character). */ |
|
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
3716 len += mb_char2len(mc); |
|
4535
45f97c349537
updated for version 7.3.1015
Bram Moolenaar <bram@vim.org>
parents:
4533
diff
changeset
|
3717 } |
|
4551
f0c37f5cf4ea
updated for version 7.3.1023
Bram Moolenaar <bram@vim.org>
parents:
4549
diff
changeset
|
3718 if (ireg_icombine && len == 0) |
| 4444 | 3719 { |
|
4535
45f97c349537
updated for version 7.3.1015
Bram Moolenaar <bram@vim.org>
parents:
4533
diff
changeset
|
3720 /* If \Z was present, then ignore composing characters. |
|
45f97c349537
updated for version 7.3.1015
Bram Moolenaar <bram@vim.org>
parents:
4533
diff
changeset
|
3721 * 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
|
3722 /* TODO: How about negated? */ |
|
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
3723 if (len == 0 && sta->c != curc) |
|
4529
432a6b8c7d93
updated for version 7.3.1012
Bram Moolenaar <bram@vim.org>
parents:
4527
diff
changeset
|
3724 result = FAIL; |
|
4547
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
3725 else |
|
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
3726 result = OK; |
|
4529
432a6b8c7d93
updated for version 7.3.1012
Bram Moolenaar <bram@vim.org>
parents:
4527
diff
changeset
|
3727 while (sta->c != NFA_END_COMPOSING) |
|
432a6b8c7d93
updated for version 7.3.1012
Bram Moolenaar <bram@vim.org>
parents:
4527
diff
changeset
|
3728 sta = sta->out; |
| 4444 | 3729 } |
|
4547
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
3730 |
|
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
3731 /* Check base character matches first, unless ignored. */ |
|
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
3732 else if (len > 0 || mc == sta->c) |
|
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
3733 { |
|
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
3734 if (len == 0) |
|
4529
432a6b8c7d93
updated for version 7.3.1012
Bram Moolenaar <bram@vim.org>
parents:
4527
diff
changeset
|
3735 { |
|
432a6b8c7d93
updated for version 7.3.1012
Bram Moolenaar <bram@vim.org>
parents:
4527
diff
changeset
|
3736 len += mb_char2len(mc); |
|
432a6b8c7d93
updated for version 7.3.1012
Bram Moolenaar <bram@vim.org>
parents:
4527
diff
changeset
|
3737 sta = sta->out; |
|
432a6b8c7d93
updated for version 7.3.1012
Bram Moolenaar <bram@vim.org>
parents:
4527
diff
changeset
|
3738 } |
| 4444 | 3739 |
|
4547
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
3740 /* 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
|
3741 * Get them into cchars[] first. */ |
|
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
3742 while (len < clen) |
|
4547
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
3743 { |
|
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
3744 mc = mb_ptr2char(reginput + len); |
|
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
3745 cchars[ccount++] = mc; |
|
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
3746 len += mb_char2len(mc); |
|
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
3747 if (ccount == MAX_MCO) |
|
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
3748 break; |
|
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
3749 } |
|
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
3750 |
|
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
3751 /* 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
|
3752 * 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
|
3753 * composing chars are matched. */ |
|
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
3754 result = OK; |
|
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
3755 while (sta->c != NFA_END_COMPOSING) |
|
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
3756 { |
|
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
3757 for (j = 0; j < ccount; ++j) |
|
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
3758 if (cchars[j] == sta->c) |
|
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
3759 break; |
|
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
3760 if (j == ccount) |
|
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
3761 { |
|
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
3762 result = FAIL; |
|
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
3763 break; |
|
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
3764 } |
|
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
3765 sta = sta->out; |
|
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
3766 } |
|
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
3767 } |
|
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
3768 else |
|
4525
36ddcf4cecbc
updated for version 7.3.1010
Bram Moolenaar <bram@vim.org>
parents:
4517
diff
changeset
|
3769 result = FAIL; |
|
4547
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
3770 |
|
4527
55bcaa1d2749
updated for version 7.3.1011
Bram Moolenaar <bram@vim.org>
parents:
4525
diff
changeset
|
3771 end = t->state->out1; /* NFA_END_COMPOSING */ |
| 4444 | 3772 ADD_POS_NEG_STATE(end); |
| 3773 break; | |
|
4527
55bcaa1d2749
updated for version 7.3.1011
Bram Moolenaar <bram@vim.org>
parents:
4525
diff
changeset
|
3774 } |
|
55bcaa1d2749
updated for version 7.3.1011
Bram Moolenaar <bram@vim.org>
parents:
4525
diff
changeset
|
3775 #endif |
| 4444 | 3776 |
| 3777 case NFA_NEWL: | |
|
4555
b2946c06d1b6
updated for version 7.3.1025
Bram Moolenaar <bram@vim.org>
parents:
4553
diff
changeset
|
3778 if (curc == NUL && !reg_line_lbr && REG_MULTI |
|
b2946c06d1b6
updated for version 7.3.1025
Bram Moolenaar <bram@vim.org>
parents:
4553
diff
changeset
|
3779 && reglnum <= reg_maxline) |
| 4444 | 3780 { |
|
4515
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
3781 go_to_nextline = TRUE; |
|
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
3782 /* 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
|
3783 * at the start of the next line. */ |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3784 addstate(nextlist, t->state->out, &t->sub, -1); |
| 4444 | 3785 } |
|
4555
b2946c06d1b6
updated for version 7.3.1025
Bram Moolenaar <bram@vim.org>
parents:
4553
diff
changeset
|
3786 else if (curc == '\n' && reg_line_lbr) |
|
b2946c06d1b6
updated for version 7.3.1025
Bram Moolenaar <bram@vim.org>
parents:
4553
diff
changeset
|
3787 { |
|
b2946c06d1b6
updated for version 7.3.1025
Bram Moolenaar <bram@vim.org>
parents:
4553
diff
changeset
|
3788 /* match \n as if it is an ordinary character */ |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3789 addstate(nextlist, t->state->out, &t->sub, 1); |
|
4555
b2946c06d1b6
updated for version 7.3.1025
Bram Moolenaar <bram@vim.org>
parents:
4553
diff
changeset
|
3790 } |
| 4444 | 3791 break; |
| 3792 | |
| 3793 case NFA_CLASS_ALNUM: | |
| 3794 case NFA_CLASS_ALPHA: | |
| 3795 case NFA_CLASS_BLANK: | |
| 3796 case NFA_CLASS_CNTRL: | |
| 3797 case NFA_CLASS_DIGIT: | |
| 3798 case NFA_CLASS_GRAPH: | |
| 3799 case NFA_CLASS_LOWER: | |
| 3800 case NFA_CLASS_PRINT: | |
| 3801 case NFA_CLASS_PUNCT: | |
| 3802 case NFA_CLASS_SPACE: | |
| 3803 case NFA_CLASS_UPPER: | |
| 3804 case NFA_CLASS_XDIGIT: | |
| 3805 case NFA_CLASS_TAB: | |
| 3806 case NFA_CLASS_RETURN: | |
| 3807 case NFA_CLASS_BACKSPACE: | |
| 3808 case NFA_CLASS_ESCAPE: | |
|
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
3809 result = check_char_class(t->state->c, curc); |
| 4444 | 3810 ADD_POS_NEG_STATE(t->state); |
| 3811 break; | |
| 3812 | |
| 3813 case NFA_END_NEG_RANGE: | |
| 3814 /* This follows a series of negated nodes, like: | |
| 3815 * 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
|
3816 if (curc > 0) |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3817 addstate(nextlist, t->state->out, &t->sub, clen); |
| 4444 | 3818 break; |
| 3819 | |
| 3820 case NFA_ANY: | |
|
4515
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
3821 /* 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
|
3822 if (curc > 0) |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3823 addstate(nextlist, t->state->out, &t->sub, clen); |
| 4444 | 3824 break; |
| 3825 | |
| 3826 /* | |
| 3827 * Character classes like \a for alpha, \d for digit etc. | |
| 3828 */ | |
| 3829 case NFA_IDENT: /* \i */ | |
|
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
3830 result = vim_isIDc(curc); |
| 4444 | 3831 ADD_POS_NEG_STATE(t->state); |
| 3832 break; | |
| 3833 | |
| 3834 case NFA_SIDENT: /* \I */ | |
|
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
3835 result = !VIM_ISDIGIT(curc) && vim_isIDc(curc); |
| 4444 | 3836 ADD_POS_NEG_STATE(t->state); |
| 3837 break; | |
| 3838 | |
| 3839 case NFA_KWORD: /* \k */ | |
| 4503 | 3840 result = vim_iswordp_buf(reginput, reg_buf); |
| 4444 | 3841 ADD_POS_NEG_STATE(t->state); |
| 3842 break; | |
| 3843 | |
| 3844 case NFA_SKWORD: /* \K */ | |
|
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
3845 result = !VIM_ISDIGIT(curc) |
|
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
3846 && vim_iswordp_buf(reginput, reg_buf); |
| 4444 | 3847 ADD_POS_NEG_STATE(t->state); |
| 3848 break; | |
| 3849 | |
| 3850 case NFA_FNAME: /* \f */ | |
|
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
3851 result = vim_isfilec(curc); |
| 4444 | 3852 ADD_POS_NEG_STATE(t->state); |
| 3853 break; | |
| 3854 | |
| 3855 case NFA_SFNAME: /* \F */ | |
|
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
3856 result = !VIM_ISDIGIT(curc) && vim_isfilec(curc); |
| 4444 | 3857 ADD_POS_NEG_STATE(t->state); |
| 3858 break; | |
| 3859 | |
| 3860 case NFA_PRINT: /* \p */ | |
| 4470 | 3861 result = ptr2cells(reginput) == 1; |
| 4444 | 3862 ADD_POS_NEG_STATE(t->state); |
| 3863 break; | |
| 3864 | |
| 3865 case NFA_SPRINT: /* \P */ | |
|
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
3866 result = !VIM_ISDIGIT(curc) && ptr2cells(reginput) == 1; |
| 4444 | 3867 ADD_POS_NEG_STATE(t->state); |
| 3868 break; | |
| 3869 | |
| 3870 case NFA_WHITE: /* \s */ | |
|
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
3871 result = vim_iswhite(curc); |
| 4444 | 3872 ADD_POS_NEG_STATE(t->state); |
| 3873 break; | |
| 3874 | |
| 3875 case NFA_NWHITE: /* \S */ | |
|
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
3876 result = curc != NUL && !vim_iswhite(curc); |
| 4444 | 3877 ADD_POS_NEG_STATE(t->state); |
| 3878 break; | |
| 3879 | |
| 3880 case NFA_DIGIT: /* \d */ | |
|
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
3881 result = ri_digit(curc); |
| 4444 | 3882 ADD_POS_NEG_STATE(t->state); |
| 3883 break; | |
| 3884 | |
| 3885 case NFA_NDIGIT: /* \D */ | |
|
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
3886 result = curc != NUL && !ri_digit(curc); |
| 4444 | 3887 ADD_POS_NEG_STATE(t->state); |
| 3888 break; | |
| 3889 | |
| 3890 case NFA_HEX: /* \x */ | |
|
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
3891 result = ri_hex(curc); |
| 4444 | 3892 ADD_POS_NEG_STATE(t->state); |
| 3893 break; | |
| 3894 | |
| 3895 case NFA_NHEX: /* \X */ | |
|
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
3896 result = curc != NUL && !ri_hex(curc); |
| 4444 | 3897 ADD_POS_NEG_STATE(t->state); |
| 3898 break; | |
| 3899 | |
| 3900 case NFA_OCTAL: /* \o */ | |
|
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
3901 result = ri_octal(curc); |
| 4444 | 3902 ADD_POS_NEG_STATE(t->state); |
| 3903 break; | |
| 3904 | |
| 3905 case NFA_NOCTAL: /* \O */ | |
|
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
3906 result = curc != NUL && !ri_octal(curc); |
| 4444 | 3907 ADD_POS_NEG_STATE(t->state); |
| 3908 break; | |
| 3909 | |
| 3910 case NFA_WORD: /* \w */ | |
|
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
3911 result = ri_word(curc); |
| 4444 | 3912 ADD_POS_NEG_STATE(t->state); |
| 3913 break; | |
| 3914 | |
| 3915 case NFA_NWORD: /* \W */ | |
|
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
3916 result = curc != NUL && !ri_word(curc); |
| 4444 | 3917 ADD_POS_NEG_STATE(t->state); |
| 3918 break; | |
| 3919 | |
| 3920 case NFA_HEAD: /* \h */ | |
|
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
3921 result = ri_head(curc); |
| 4444 | 3922 ADD_POS_NEG_STATE(t->state); |
| 3923 break; | |
| 3924 | |
| 3925 case NFA_NHEAD: /* \H */ | |
|
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
3926 result = curc != NUL && !ri_head(curc); |
| 4444 | 3927 ADD_POS_NEG_STATE(t->state); |
| 3928 break; | |
| 3929 | |
| 3930 case NFA_ALPHA: /* \a */ | |
|
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
3931 result = ri_alpha(curc); |
| 4444 | 3932 ADD_POS_NEG_STATE(t->state); |
| 3933 break; | |
| 3934 | |
| 3935 case NFA_NALPHA: /* \A */ | |
|
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
3936 result = curc != NUL && !ri_alpha(curc); |
| 4444 | 3937 ADD_POS_NEG_STATE(t->state); |
| 3938 break; | |
| 3939 | |
| 3940 case NFA_LOWER: /* \l */ | |
|
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
3941 result = ri_lower(curc); |
| 4444 | 3942 ADD_POS_NEG_STATE(t->state); |
| 3943 break; | |
| 3944 | |
| 3945 case NFA_NLOWER: /* \L */ | |
|
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
3946 result = curc != NUL && !ri_lower(curc); |
| 4444 | 3947 ADD_POS_NEG_STATE(t->state); |
| 3948 break; | |
| 3949 | |
| 3950 case NFA_UPPER: /* \u */ | |
|
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
3951 result = ri_upper(curc); |
| 4444 | 3952 ADD_POS_NEG_STATE(t->state); |
| 3953 break; | |
| 3954 | |
| 3955 case NFA_NUPPER: /* \U */ | |
|
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
3956 result = curc != NUL && !ri_upper(curc); |
| 4444 | 3957 ADD_POS_NEG_STATE(t->state); |
| 3958 break; | |
| 3959 | |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3960 case NFA_BACKREF1: |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3961 case NFA_BACKREF2: |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3962 case NFA_BACKREF3: |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3963 case NFA_BACKREF4: |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3964 case NFA_BACKREF5: |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3965 case NFA_BACKREF6: |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3966 case NFA_BACKREF7: |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3967 case NFA_BACKREF8: |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3968 case NFA_BACKREF9: |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3969 /* \1 .. \9 */ |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3970 { |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3971 int subidx = t->state->c - NFA_BACKREF1 + 1; |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3972 int bytelen; |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3973 |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3974 result = match_backref(&t->sub, subidx, &bytelen); |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3975 if (result) |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3976 { |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3977 if (bytelen == 0) |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3978 { |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3979 /* 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
|
3980 * be used next */ |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3981 addstate_here(thislist, t->state->out, &t->sub, |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3982 &listidx); |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3983 thislist->t[listidx + 1].count = 0; |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3984 } |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3985 else if (bytelen <= clen) |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3986 { |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3987 /* match current character, jump ahead to out of |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3988 * NFA_SKIP */ |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3989 addstate(nextlist, t->state->out->out, &t->sub, clen); |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3990 #ifdef ENABLE_LOG |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3991 log_subexpr(&nextlist->t[nextlist->n - 1].sub); |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3992 #endif |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3993 } |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3994 else |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3995 { |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3996 /* skip ofer the matched characters, set character |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3997 * count in NFA_SKIP */ |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3998 addstate(nextlist, t->state->out, &t->sub, bytelen); |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3999 nextlist->t[nextlist->n - 1].count = bytelen - clen; |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4000 #ifdef ENABLE_LOG |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4001 log_subexpr(&nextlist->t[nextlist->n - 1].sub); |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4002 #endif |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4003 } |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4004 |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4005 } |
| 4482 | 4006 break; |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4007 } |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4008 case NFA_SKIP: |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4009 /* charater of previous matching \1 .. \9 */ |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4010 if (t->count - clen <= 0) |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4011 { |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4012 /* end of match, go to what follows */ |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4013 addstate(nextlist, t->state->out, &t->sub, clen); |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4014 #ifdef ENABLE_LOG |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4015 log_subexpr(&nextlist->t[nextlist->n - 1].sub); |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4016 #endif |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4017 } |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4018 else |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4019 { |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4020 /* add state again with decremented count */ |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4021 addstate(nextlist, t->state, &t->sub, 0); |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4022 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
|
4023 #ifdef ENABLE_LOG |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4024 log_subexpr(&nextlist->t[nextlist->n - 1].sub); |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4025 #endif |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4026 } |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4027 break; |
| 4482 | 4028 |
| 4029 case NFA_SKIP_CHAR: | |
| 4030 case NFA_ZSTART: | |
|
4569
f262fb02889d
updated for version 7.3.1032
Bram Moolenaar <bram@vim.org>
parents:
4567
diff
changeset
|
4031 case NFA_ZEND: |
| 4482 | 4032 /* TODO: should not happen? */ |
| 4033 break; | |
| 4034 | |
|
4583
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4035 case NFA_LNUM: |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4036 case NFA_LNUM_GT: |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4037 case NFA_LNUM_LT: |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4038 result = (REG_MULTI && |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4039 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
|
4040 (long_u)(reglnum + reg_firstlnum))); |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4041 if (result) |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4042 addstate_here(thislist, t->state->out, &t->sub, &listidx); |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4043 break; |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4044 |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4045 case NFA_COL: |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4046 case NFA_COL_GT: |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4047 case NFA_COL_LT: |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4048 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
|
4049 (long_u)(reginput - regline) + 1); |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4050 if (result) |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4051 addstate_here(thislist, t->state->out, &t->sub, &listidx); |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4052 break; |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4053 |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4054 case NFA_VCOL: |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4055 case NFA_VCOL_GT: |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4056 case NFA_VCOL_LT: |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4057 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
|
4058 (long_u)win_linetabsize( |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4059 reg_win == NULL ? curwin : reg_win, |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4060 regline, (colnr_T)(reginput - regline)) + 1); |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4061 if (result) |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4062 addstate_here(thislist, t->state->out, &t->sub, &listidx); |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4063 break; |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4064 |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4065 case NFA_CURSOR: |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4066 result = (reg_win != NULL |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4067 && (reglnum + reg_firstlnum == reg_win->w_cursor.lnum) |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4068 && ((colnr_T)(reginput - regline) |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4069 == reg_win->w_cursor.col)); |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4070 if (result) |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4071 addstate_here(thislist, t->state->out, &t->sub, &listidx); |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4072 break; |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4073 |
| 4444 | 4074 default: /* regular character */ |
|
4559
04086e297563
updated for version 7.3.1027
Bram Moolenaar <bram@vim.org>
parents:
4557
diff
changeset
|
4075 { |
|
04086e297563
updated for version 7.3.1027
Bram Moolenaar <bram@vim.org>
parents:
4557
diff
changeset
|
4076 int c = t->state->c; |
|
04086e297563
updated for version 7.3.1027
Bram Moolenaar <bram@vim.org>
parents:
4557
diff
changeset
|
4077 |
| 4482 | 4078 /* TODO: put this in #ifdef later */ |
|
4559
04086e297563
updated for version 7.3.1027
Bram Moolenaar <bram@vim.org>
parents:
4557
diff
changeset
|
4079 if (c < -256) |
|
04086e297563
updated for version 7.3.1027
Bram Moolenaar <bram@vim.org>
parents:
4557
diff
changeset
|
4080 EMSGN("INTERNAL: Negative state char: %ld", c); |
|
04086e297563
updated for version 7.3.1027
Bram Moolenaar <bram@vim.org>
parents:
4557
diff
changeset
|
4081 if (is_Magic(c)) |
|
04086e297563
updated for version 7.3.1027
Bram Moolenaar <bram@vim.org>
parents:
4557
diff
changeset
|
4082 c = un_Magic(c); |
|
04086e297563
updated for version 7.3.1027
Bram Moolenaar <bram@vim.org>
parents:
4557
diff
changeset
|
4083 result = (c == curc); |
|
04086e297563
updated for version 7.3.1027
Bram Moolenaar <bram@vim.org>
parents:
4557
diff
changeset
|
4084 |
|
04086e297563
updated for version 7.3.1027
Bram Moolenaar <bram@vim.org>
parents:
4557
diff
changeset
|
4085 if (!result && ireg_ic) |
|
04086e297563
updated for version 7.3.1027
Bram Moolenaar <bram@vim.org>
parents:
4557
diff
changeset
|
4086 result = MB_TOLOWER(c) == MB_TOLOWER(curc); |
|
4527
55bcaa1d2749
updated for version 7.3.1011
Bram Moolenaar <bram@vim.org>
parents:
4525
diff
changeset
|
4087 #ifdef FEAT_MBYTE |
|
55bcaa1d2749
updated for version 7.3.1011
Bram Moolenaar <bram@vim.org>
parents:
4525
diff
changeset
|
4088 /* 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
|
4089 * 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
|
4090 * character uses NFA_COMPOSING above. */ |
|
55bcaa1d2749
updated for version 7.3.1011
Bram Moolenaar <bram@vim.org>
parents:
4525
diff
changeset
|
4091 if (result && enc_utf8 && !ireg_icombine |
|
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4092 && clen != utf_char2len(curc)) |
|
4527
55bcaa1d2749
updated for version 7.3.1011
Bram Moolenaar <bram@vim.org>
parents:
4525
diff
changeset
|
4093 result = FALSE; |
|
55bcaa1d2749
updated for version 7.3.1011
Bram Moolenaar <bram@vim.org>
parents:
4525
diff
changeset
|
4094 #endif |
| 4444 | 4095 ADD_POS_NEG_STATE(t->state); |
| 4096 break; | |
|
4559
04086e297563
updated for version 7.3.1027
Bram Moolenaar <bram@vim.org>
parents:
4557
diff
changeset
|
4097 } |
| 4444 | 4098 } |
| 4099 | |
| 4100 } /* for (thislist = thislist; thislist->state; thislist++) */ | |
| 4101 | |
|
4557
888c12c899e5
updated for version 7.3.1026
Bram Moolenaar <bram@vim.org>
parents:
4555
diff
changeset
|
4102 /* 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
|
4103 * start state to the list of states. |
|
888c12c899e5
updated for version 7.3.1026
Bram Moolenaar <bram@vim.org>
parents:
4555
diff
changeset
|
4104 * 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
|
4105 * matters! |
|
888c12c899e5
updated for version 7.3.1026
Bram Moolenaar <bram@vim.org>
parents:
4555
diff
changeset
|
4106 * 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
|
4107 * because recursive calls should only start in the first position. |
|
888c12c899e5
updated for version 7.3.1026
Bram Moolenaar <bram@vim.org>
parents:
4555
diff
changeset
|
4108 * Also don't start a match past the first line. */ |
|
4561
4d81fdda8f35
updated for version 7.3.1028
Bram Moolenaar <bram@vim.org>
parents:
4559
diff
changeset
|
4109 if (nfa_match == FALSE && start->c == NFA_MOPEN + 0 |
|
4579
7a2be4a39423
updated for version 7.3.1037
Bram Moolenaar <bram@vim.org>
parents:
4577
diff
changeset
|
4110 && reglnum == 0 && clen != 0 |
|
7a2be4a39423
updated for version 7.3.1037
Bram Moolenaar <bram@vim.org>
parents:
4577
diff
changeset
|
4111 && (ireg_maxcol == 0 |
|
7a2be4a39423
updated for version 7.3.1037
Bram Moolenaar <bram@vim.org>
parents:
4577
diff
changeset
|
4112 || (colnr_T)(reginput - regline) < ireg_maxcol)) |
| 4444 | 4113 { |
| 4114 #ifdef ENABLE_LOG | |
| 4115 fprintf(log_fd, "(---) STARTSTATE\n"); | |
| 4116 #endif | |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4117 addstate(nextlist, start, m, clen); |
| 4444 | 4118 } |
| 4119 | |
| 4120 #ifdef ENABLE_LOG | |
| 4121 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
|
4122 { |
|
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4123 int i; |
|
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4124 |
|
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4125 for (i = 0; i < thislist->n; i++) |
|
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4126 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
|
4127 } |
| 4444 | 4128 fprintf(log_fd, "\n"); |
| 4129 #endif | |
| 4130 | |
| 4131 nextchar: | |
|
4515
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
4132 /* 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
|
4133 * finish. */ |
|
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4134 if (clen != 0) |
|
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4135 reginput += clen; |
|
4515
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
4136 else if (go_to_nextline) |
|
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
4137 reg_nextline(); |
|
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
4138 else |
|
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
4139 break; |
|
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
4140 } |
| 4444 | 4141 |
| 4142 #ifdef ENABLE_LOG | |
| 4143 if (log_fd != stderr) | |
| 4144 fclose(log_fd); | |
| 4145 log_fd = NULL; | |
| 4146 #endif | |
| 4147 | |
| 4148 theend: | |
| 4149 /* Free memory */ | |
| 4150 vim_free(list[0].t); | |
| 4151 vim_free(list[1].t); | |
| 4152 vim_free(list[2].t); | |
|
4561
4d81fdda8f35
updated for version 7.3.1028
Bram Moolenaar <bram@vim.org>
parents:
4559
diff
changeset
|
4153 vim_free(listids); |
| 4444 | 4154 #undef ADD_POS_NEG_STATE |
| 4460 | 4155 #ifdef NFA_REGEXP_DEBUG_LOG |
| 4444 | 4156 fclose(debug); |
| 4157 #endif | |
| 4158 | |
|
4561
4d81fdda8f35
updated for version 7.3.1028
Bram Moolenaar <bram@vim.org>
parents:
4559
diff
changeset
|
4159 return nfa_match; |
| 4444 | 4160 } |
| 4161 | |
| 4162 /* | |
| 4163 * Try match of "prog" with at regline["col"]. | |
| 4164 * Returns 0 for failure, number of lines contained in the match otherwise. | |
| 4165 */ | |
| 4166 static long | |
| 4167 nfa_regtry(start, col) | |
| 4168 nfa_state_T *start; | |
| 4169 colnr_T col; | |
| 4170 { | |
| 4171 int i; | |
| 4172 regsub_T sub, m; | |
| 4173 #ifdef ENABLE_LOG | |
| 4174 FILE *f; | |
| 4175 #endif | |
| 4176 | |
| 4177 reginput = regline + col; | |
| 4178 need_clear_subexpr = TRUE; | |
| 4179 | |
| 4180 #ifdef ENABLE_LOG | |
|
4531
1be43c095aff
updated for version 7.3.1013
Bram Moolenaar <bram@vim.org>
parents:
4529
diff
changeset
|
4181 f = fopen(NFA_REGEXP_RUN_LOG, "a"); |
| 4444 | 4182 if (f != NULL) |
| 4183 { | |
| 4184 fprintf(f, "\n\n\n\n\n\n\t\t=======================================================\n"); | |
| 4185 fprintf(f, " =======================================================\n"); | |
| 4186 #ifdef DEBUG | |
| 4187 fprintf(f, "\tRegexp is \"%s\"\n", nfa_regengine.expr); | |
| 4188 #endif | |
| 4189 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
|
4190 fprintf(f, " =======================================================\n\n"); |
|
4533
6a2005efa02b
updated for version 7.3.1014
Bram Moolenaar <bram@vim.org>
parents:
4531
diff
changeset
|
4191 nfa_print_state(f, start); |
| 4444 | 4192 fprintf(f, "\n\n"); |
| 4193 fclose(f); | |
| 4194 } | |
| 4195 else | |
| 4196 EMSG(_("Could not open temporary log file for writing ")); | |
| 4197 #endif | |
| 4198 | |
| 4199 if (REG_MULTI) | |
| 4200 { | |
| 4201 /* Use 0xff to set lnum to -1 */ | |
|
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
4202 vim_memset(sub.list.multi, 0xff, sizeof(struct multipos) * nfa_nsubexpr); |
|
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
4203 vim_memset(m.list.multi, 0xff, sizeof(struct multipos) * nfa_nsubexpr); |
| 4444 | 4204 } |
| 4205 else | |
| 4206 { | |
|
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
4207 vim_memset(sub.list.line, 0, sizeof(struct linepos) * nfa_nsubexpr); |
|
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
4208 vim_memset(m.list.line, 0, sizeof(struct linepos) * nfa_nsubexpr); |
| 4444 | 4209 } |
|
4563
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
4210 sub.in_use = 0; |
|
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
4211 m.in_use = 0; |
| 4444 | 4212 |
| 4213 if (nfa_regmatch(start, &sub, &m) == FALSE) | |
| 4214 return 0; | |
| 4215 | |
| 4216 cleanup_subexpr(); | |
| 4217 if (REG_MULTI) | |
| 4218 { | |
|
4563
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
4219 for (i = 0; i < sub.in_use; i++) |
| 4444 | 4220 { |
|
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
4221 reg_startpos[i] = sub.list.multi[i].start; |
|
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
4222 reg_endpos[i] = sub.list.multi[i].end; |
| 4444 | 4223 } |
| 4224 | |
| 4225 if (reg_startpos[0].lnum < 0) | |
| 4226 { | |
| 4227 reg_startpos[0].lnum = 0; | |
| 4228 reg_startpos[0].col = col; | |
| 4229 } | |
| 4230 if (reg_endpos[0].lnum < 0) | |
| 4231 { | |
|
4569
f262fb02889d
updated for version 7.3.1032
Bram Moolenaar <bram@vim.org>
parents:
4567
diff
changeset
|
4232 /* pattern has a \ze but it didn't match, use current end */ |
| 4444 | 4233 reg_endpos[0].lnum = reglnum; |
| 4234 reg_endpos[0].col = (int)(reginput - regline); | |
| 4235 } | |
| 4236 else | |
| 4237 /* Use line number of "\ze". */ | |
| 4238 reglnum = reg_endpos[0].lnum; | |
| 4239 } | |
| 4240 else | |
| 4241 { | |
|
4563
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
4242 for (i = 0; i < sub.in_use; i++) |
| 4444 | 4243 { |
|
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
4244 reg_startp[i] = sub.list.line[i].start; |
|
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
4245 reg_endp[i] = sub.list.line[i].end; |
| 4444 | 4246 } |
| 4247 | |
| 4248 if (reg_startp[0] == NULL) | |
| 4249 reg_startp[0] = regline + col; | |
| 4250 if (reg_endp[0] == NULL) | |
| 4251 reg_endp[0] = reginput; | |
| 4252 } | |
| 4253 | |
| 4254 return 1 + reglnum; | |
| 4255 } | |
| 4256 | |
| 4257 /* | |
| 4258 * Match a regexp against a string ("line" points to the string) or multiple | |
| 4259 * lines ("line" is NULL, use reg_getline()). | |
| 4260 * | |
| 4261 * Returns 0 for failure, number of lines contained in the match otherwise. | |
| 4262 */ | |
| 4263 static long | |
| 4264 nfa_regexec_both(line, col) | |
| 4265 char_u *line; | |
| 4266 colnr_T col; /* column to start looking for match */ | |
| 4267 { | |
| 4268 nfa_regprog_T *prog; | |
| 4269 long retval = 0L; | |
| 4270 int i; | |
| 4271 | |
| 4272 if (REG_MULTI) | |
| 4273 { | |
| 4274 prog = (nfa_regprog_T *)reg_mmatch->regprog; | |
| 4275 line = reg_getline((linenr_T)0); /* relative to the cursor */ | |
| 4276 reg_startpos = reg_mmatch->startpos; | |
| 4277 reg_endpos = reg_mmatch->endpos; | |
| 4278 } | |
| 4279 else | |
| 4280 { | |
| 4281 prog = (nfa_regprog_T *)reg_match->regprog; | |
| 4282 reg_startp = reg_match->startp; | |
| 4283 reg_endp = reg_match->endp; | |
| 4284 } | |
| 4285 | |
| 4286 /* Be paranoid... */ | |
| 4287 if (prog == NULL || line == NULL) | |
| 4288 { | |
| 4289 EMSG(_(e_null)); | |
| 4290 goto theend; | |
| 4291 } | |
| 4292 | |
| 4293 /* If the start column is past the maximum column: no need to try. */ | |
| 4294 if (ireg_maxcol > 0 && col >= ireg_maxcol) | |
| 4295 goto theend; | |
| 4296 | |
| 4297 /* If pattern contains "\c" or "\C": overrule value of ireg_ic */ | |
| 4298 if (prog->regflags & RF_ICASE) | |
| 4299 ireg_ic = TRUE; | |
| 4300 else if (prog->regflags & RF_NOICASE) | |
| 4301 ireg_ic = FALSE; | |
| 4302 | |
| 4303 #ifdef FEAT_MBYTE | |
| 4304 /* If pattern contains "\Z" overrule value of ireg_icombine */ | |
| 4305 if (prog->regflags & RF_ICOMBINE) | |
| 4306 ireg_icombine = TRUE; | |
| 4307 #endif | |
| 4308 | |
| 4309 regline = line; | |
| 4310 reglnum = 0; /* relative to line */ | |
| 4311 | |
|
4553
7b835b2969af
updated for version 7.3.1024
Bram Moolenaar <bram@vim.org>
parents:
4551
diff
changeset
|
4312 nfa_has_zend = prog->has_zend; |
|
4647
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
4313 nfa_has_backref = prog->has_backref; |
|
4561
4d81fdda8f35
updated for version 7.3.1028
Bram Moolenaar <bram@vim.org>
parents:
4559
diff
changeset
|
4314 nfa_nsubexpr = prog->nsubexp; |
|
4553
7b835b2969af
updated for version 7.3.1024
Bram Moolenaar <bram@vim.org>
parents:
4551
diff
changeset
|
4315 |
| 4444 | 4316 nstate = prog->nstate; |
| 4317 for (i = 0; i < nstate; ++i) | |
| 4318 { | |
| 4319 prog->state[i].id = i; | |
| 4320 prog->state[i].lastlist = 0; | |
| 4321 } | |
| 4322 | |
| 4323 retval = nfa_regtry(prog->start, col); | |
| 4324 | |
| 4325 theend: | |
| 4326 return retval; | |
| 4327 } | |
| 4328 | |
| 4329 /* | |
| 4330 * Compile a regular expression into internal code for the NFA matcher. | |
| 4331 * Returns the program in allocated space. Returns NULL for an error. | |
| 4332 */ | |
| 4333 static regprog_T * | |
| 4334 nfa_regcomp(expr, re_flags) | |
| 4335 char_u *expr; | |
| 4336 int re_flags; | |
| 4337 { | |
|
4541
80170d61a85c
updated for version 7.3.1018
Bram Moolenaar <bram@vim.org>
parents:
4539
diff
changeset
|
4338 nfa_regprog_T *prog = NULL; |
| 4458 | 4339 size_t prog_size; |
| 4444 | 4340 int *postfix; |
| 4341 | |
| 4342 if (expr == NULL) | |
| 4343 return NULL; | |
| 4344 | |
| 4345 #ifdef DEBUG | |
| 4346 nfa_regengine.expr = expr; | |
| 4347 #endif | |
| 4348 | |
| 4349 init_class_tab(); | |
| 4350 | |
| 4351 if (nfa_regcomp_start(expr, re_flags) == FAIL) | |
| 4352 return NULL; | |
| 4353 | |
| 4354 /* 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
|
4355 * (and count its size). */ |
| 4444 | 4356 postfix = re2post(); |
| 4357 if (postfix == NULL) | |
|
4555
b2946c06d1b6
updated for version 7.3.1025
Bram Moolenaar <bram@vim.org>
parents:
4553
diff
changeset
|
4358 { |
|
b2946c06d1b6
updated for version 7.3.1025
Bram Moolenaar <bram@vim.org>
parents:
4553
diff
changeset
|
4359 /* TODO: only give this error for debugging? */ |
|
b2946c06d1b6
updated for version 7.3.1025
Bram Moolenaar <bram@vim.org>
parents:
4553
diff
changeset
|
4360 if (post_ptr >= post_end) |
|
b2946c06d1b6
updated for version 7.3.1025
Bram Moolenaar <bram@vim.org>
parents:
4553
diff
changeset
|
4361 EMSGN("Internal error: estimated max number of states insufficient: %ld", post_end - post_start); |
| 4444 | 4362 goto fail; /* Cascaded (syntax?) error */ |
|
4555
b2946c06d1b6
updated for version 7.3.1025
Bram Moolenaar <bram@vim.org>
parents:
4553
diff
changeset
|
4363 } |
| 4444 | 4364 |
| 4365 /* | |
| 4366 * In order to build the NFA, we parse the input regexp twice: | |
| 4367 * 1. first pass to count size (so we can allocate space) | |
| 4368 * 2. second to emit code | |
| 4369 */ | |
| 4370 #ifdef ENABLE_LOG | |
| 4371 { | |
|
4531
1be43c095aff
updated for version 7.3.1013
Bram Moolenaar <bram@vim.org>
parents:
4529
diff
changeset
|
4372 FILE *f = fopen(NFA_REGEXP_RUN_LOG, "a"); |
| 4444 | 4373 |
| 4374 if (f != NULL) | |
| 4375 { | |
| 4376 fprintf(f, "\n*****************************\n\n\n\n\tCompiling regexp \"%s\" ... hold on !\n", expr); | |
| 4377 fclose(f); | |
| 4378 } | |
| 4379 } | |
| 4380 #endif | |
| 4381 | |
| 4382 /* | |
| 4383 * PASS 1 | |
| 4384 * Count number of NFA states in "nstate". Do not build the NFA. | |
| 4385 */ | |
| 4386 post2nfa(postfix, post_ptr, TRUE); | |
|
4541
80170d61a85c
updated for version 7.3.1018
Bram Moolenaar <bram@vim.org>
parents:
4539
diff
changeset
|
4387 |
|
80170d61a85c
updated for version 7.3.1018
Bram Moolenaar <bram@vim.org>
parents:
4539
diff
changeset
|
4388 /* Space for compiled regexp */ |
|
80170d61a85c
updated for version 7.3.1018
Bram Moolenaar <bram@vim.org>
parents:
4539
diff
changeset
|
4389 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
|
4390 prog = (nfa_regprog_T *)lalloc(prog_size, TRUE); |
|
80170d61a85c
updated for version 7.3.1018
Bram Moolenaar <bram@vim.org>
parents:
4539
diff
changeset
|
4391 if (prog == NULL) |
|
80170d61a85c
updated for version 7.3.1018
Bram Moolenaar <bram@vim.org>
parents:
4539
diff
changeset
|
4392 goto fail; |
|
80170d61a85c
updated for version 7.3.1018
Bram Moolenaar <bram@vim.org>
parents:
4539
diff
changeset
|
4393 vim_memset(prog, 0, prog_size); |
| 4444 | 4394 state_ptr = prog->state; |
| 4395 | |
| 4396 /* | |
| 4397 * PASS 2 | |
| 4398 * Build the NFA | |
| 4399 */ | |
| 4400 prog->start = post2nfa(postfix, post_ptr, FALSE); | |
| 4401 if (prog->start == NULL) | |
| 4402 goto fail; | |
| 4403 | |
| 4404 prog->regflags = regflags; | |
| 4405 prog->engine = &nfa_regengine; | |
| 4406 prog->nstate = nstate; | |
|
4553
7b835b2969af
updated for version 7.3.1024
Bram Moolenaar <bram@vim.org>
parents:
4551
diff
changeset
|
4407 prog->has_zend = nfa_has_zend; |
|
4647
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
4408 prog->has_backref = nfa_has_backref; |
|
4561
4d81fdda8f35
updated for version 7.3.1028
Bram Moolenaar <bram@vim.org>
parents:
4559
diff
changeset
|
4409 prog->nsubexp = regnpar; |
| 4444 | 4410 #ifdef ENABLE_LOG |
| 4411 nfa_postfix_dump(expr, OK); | |
| 4412 nfa_dump(prog); | |
| 4413 #endif | |
| 4414 | |
| 4415 out: | |
| 4416 vim_free(post_start); | |
| 4417 post_start = post_ptr = post_end = NULL; | |
| 4418 state_ptr = NULL; | |
| 4419 return (regprog_T *)prog; | |
| 4420 | |
| 4421 fail: | |
| 4422 vim_free(prog); | |
| 4423 prog = NULL; | |
| 4424 #ifdef ENABLE_LOG | |
| 4425 nfa_postfix_dump(expr, FAIL); | |
| 4426 #endif | |
| 4427 #ifdef DEBUG | |
| 4428 nfa_regengine.expr = NULL; | |
| 4429 #endif | |
| 4430 goto out; | |
| 4431 } | |
| 4432 | |
| 4433 | |
| 4434 /* | |
| 4435 * Match a regexp against a string. | |
| 4436 * "rmp->regprog" is a compiled regexp as returned by nfa_regcomp(). | |
| 4437 * Uses curbuf for line count and 'iskeyword'. | |
| 4438 * | |
| 4439 * Return TRUE if there is a match, FALSE if not. | |
| 4440 */ | |
| 4441 static int | |
| 4442 nfa_regexec(rmp, line, col) | |
| 4443 regmatch_T *rmp; | |
| 4444 char_u *line; /* string to match against */ | |
| 4445 colnr_T col; /* column to start looking for match */ | |
| 4446 { | |
| 4447 reg_match = rmp; | |
| 4448 reg_mmatch = NULL; | |
| 4449 reg_maxline = 0; | |
| 4450 reg_line_lbr = FALSE; | |
| 4451 reg_buf = curbuf; | |
| 4452 reg_win = NULL; | |
| 4453 ireg_ic = rmp->rm_ic; | |
| 4454 #ifdef FEAT_MBYTE | |
| 4455 ireg_icombine = FALSE; | |
| 4456 #endif | |
| 4457 ireg_maxcol = 0; | |
| 4458 return (nfa_regexec_both(line, col) != 0); | |
| 4459 } | |
| 4460 | |
| 4461 #if defined(FEAT_MODIFY_FNAME) || defined(FEAT_EVAL) \ | |
| 4462 || defined(FIND_REPLACE_DIALOG) || defined(PROTO) | |
| 4463 | |
| 4464 static int nfa_regexec_nl __ARGS((regmatch_T *rmp, char_u *line, colnr_T col)); | |
| 4465 | |
| 4466 /* | |
| 4467 * Like nfa_regexec(), but consider a "\n" in "line" to be a line break. | |
| 4468 */ | |
| 4469 static int | |
| 4470 nfa_regexec_nl(rmp, line, col) | |
| 4471 regmatch_T *rmp; | |
| 4472 char_u *line; /* string to match against */ | |
| 4473 colnr_T col; /* column to start looking for match */ | |
| 4474 { | |
| 4475 reg_match = rmp; | |
| 4476 reg_mmatch = NULL; | |
| 4477 reg_maxline = 0; | |
| 4478 reg_line_lbr = TRUE; | |
| 4479 reg_buf = curbuf; | |
| 4480 reg_win = NULL; | |
| 4481 ireg_ic = rmp->rm_ic; | |
| 4482 #ifdef FEAT_MBYTE | |
| 4483 ireg_icombine = FALSE; | |
| 4484 #endif | |
| 4485 ireg_maxcol = 0; | |
| 4486 return (nfa_regexec_both(line, col) != 0); | |
| 4487 } | |
| 4488 #endif | |
| 4489 | |
| 4490 | |
| 4491 /* | |
| 4492 * Match a regexp against multiple lines. | |
| 4493 * "rmp->regprog" is a compiled regexp as returned by vim_regcomp(). | |
| 4494 * Uses curbuf for line count and 'iskeyword'. | |
| 4495 * | |
| 4496 * Return zero if there is no match. Return number of lines contained in the | |
| 4497 * match otherwise. | |
| 4498 * | |
| 4499 * Note: the body is the same as bt_regexec() except for nfa_regexec_both() | |
| 4500 * | |
| 4501 * ! Also NOTE : match may actually be in another line. e.g.: | |
| 4502 * when r.e. is \nc, cursor is at 'a' and the text buffer looks like | |
| 4503 * | |
| 4504 * +-------------------------+ | |
| 4505 * |a | | |
| 4506 * |b | | |
| 4507 * |c | | |
| 4508 * | | | |
| 4509 * +-------------------------+ | |
| 4510 * | |
| 4511 * then nfa_regexec_multi() returns 3. while the original | |
| 4512 * vim_regexec_multi() returns 0 and a second call at line 2 will return 2. | |
| 4513 * | |
| 4514 * FIXME if this behavior is not compatible. | |
| 4515 */ | |
| 4516 static long | |
| 4517 nfa_regexec_multi(rmp, win, buf, lnum, col, tm) | |
| 4518 regmmatch_T *rmp; | |
| 4519 win_T *win; /* window in which to search or NULL */ | |
| 4520 buf_T *buf; /* buffer in which to search */ | |
| 4521 linenr_T lnum; /* nr of line to start looking for match */ | |
| 4522 colnr_T col; /* column to start looking for match */ | |
| 4523 proftime_T *tm UNUSED; /* timeout limit or NULL */ | |
| 4524 { | |
| 4525 reg_match = NULL; | |
| 4526 reg_mmatch = rmp; | |
| 4527 reg_buf = buf; | |
| 4528 reg_win = win; | |
| 4529 reg_firstlnum = lnum; | |
| 4530 reg_maxline = reg_buf->b_ml.ml_line_count - lnum; | |
| 4531 reg_line_lbr = FALSE; | |
| 4532 ireg_ic = rmp->rmm_ic; | |
| 4533 #ifdef FEAT_MBYTE | |
| 4534 ireg_icombine = FALSE; | |
| 4535 #endif | |
| 4536 ireg_maxcol = rmp->rmm_maxcol; | |
| 4537 | |
| 4503 | 4538 return nfa_regexec_both(NULL, col); |
| 4444 | 4539 } |
| 4540 | |
| 4541 #ifdef DEBUG | |
| 4542 # undef ENABLE_LOG | |
| 4543 #endif |