Mercurial > vim
annotate src/regexp.c @ 10812:569cb89e14fe
Added tag v8.0.0295 for changeset 4cb74eab17336ed0674cd100740f0c59c8d1f35d
| author | Christian Brabandt <cb@256bit.org> |
|---|---|
| date | Wed, 01 Feb 2017 23:30:05 +0100 |
| parents | 66f1b5bf3fa6 |
| children | 778c10516955 |
| rev | line source |
|---|---|
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commit https://github.com/vim/vim/commit/edf3f97ae2af024708ebb4ac614227327033ca47
Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
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1 /* vi:set ts=8 sts=4 sw=4 noet: |
| 7 | 2 * |
| 3 * Handling of regular expressions: vim_regcomp(), vim_regexec(), vim_regsub() | |
| 4 * | |
| 5 * NOTICE: | |
| 6 * | |
| 7 * This is NOT the original regular expression code as written by Henry | |
| 8 * Spencer. This code has been modified specifically for use with the VIM | |
| 9 * editor, and should not be used separately from Vim. If you want a good | |
| 10 * regular expression library, get the original code. The copyright notice | |
| 11 * that follows is from the original. | |
| 12 * | |
| 13 * END NOTICE | |
| 14 * | |
| 15 * Copyright (c) 1986 by University of Toronto. | |
| 16 * Written by Henry Spencer. Not derived from licensed software. | |
| 17 * | |
| 18 * Permission is granted to anyone to use this software for any | |
| 19 * purpose on any computer system, and to redistribute it freely, | |
| 20 * subject to the following restrictions: | |
| 21 * | |
| 22 * 1. The author is not responsible for the consequences of use of | |
| 23 * this software, no matter how awful, even if they arise | |
| 24 * from defects in it. | |
| 25 * | |
| 26 * 2. The origin of this software must not be misrepresented, either | |
| 27 * by explicit claim or by omission. | |
| 28 * | |
| 29 * 3. Altered versions must be plainly marked as such, and must not | |
| 30 * be misrepresented as being the original software. | |
| 31 * | |
| 32 * Beware that some of this code is subtly aware of the way operator | |
| 33 * precedence is structured in regular expressions. Serious changes in | |
| 34 * regular-expression syntax might require a total rethink. | |
| 35 * | |
| 24 | 36 * Changes have been made by Tony Andrews, Olaf 'Rhialto' Seibert, Robert |
| 37 * Webb, Ciaran McCreesh and Bram Moolenaar. | |
| 7 | 38 * Named character class support added by Walter Briscoe (1998 Jul 01) |
| 39 */ | |
| 40 | |
| 4444 | 41 /* Uncomment the first if you do not want to see debugging logs or files |
| 42 * related to regular expressions, even when compiling with -DDEBUG. | |
| 43 * Uncomment the second to get the regexp debugging. */ | |
| 44 /* #undef DEBUG */ | |
| 45 /* #define DEBUG */ | |
| 46 | |
| 7 | 47 #include "vim.h" |
| 48 | |
| 4444 | 49 #ifdef DEBUG |
| 50 /* show/save debugging data when BT engine is used */ | |
| 51 # define BT_REGEXP_DUMP | |
| 52 /* save the debugging data to a file instead of displaying it */ | |
| 53 # define BT_REGEXP_LOG | |
| 4460 | 54 # define BT_REGEXP_DEBUG_LOG |
| 55 # define BT_REGEXP_DEBUG_LOG_NAME "bt_regexp_debug.log" | |
| 4444 | 56 #endif |
| 7 | 57 |
| 58 /* | |
| 59 * The "internal use only" fields in regexp.h are present to pass info from | |
| 60 * compile to execute that permits the execute phase to run lots faster on | |
| 61 * simple cases. They are: | |
| 62 * | |
| 63 * regstart char that must begin a match; NUL if none obvious; Can be a | |
| 64 * multi-byte character. | |
| 65 * reganch is the match anchored (at beginning-of-line only)? | |
| 66 * regmust string (pointer into program) that match must include, or NULL | |
| 67 * regmlen length of regmust string | |
| 68 * regflags RF_ values or'ed together | |
| 69 * | |
| 70 * Regstart and reganch permit very fast decisions on suitable starting points | |
| 71 * for a match, cutting down the work a lot. Regmust permits fast rejection | |
| 72 * of lines that cannot possibly match. The regmust tests are costly enough | |
| 73 * that vim_regcomp() supplies a regmust only if the r.e. contains something | |
| 74 * potentially expensive (at present, the only such thing detected is * or + | |
| 75 * at the start of the r.e., which can involve a lot of backup). Regmlen is | |
| 76 * supplied because the test in vim_regexec() needs it and vim_regcomp() is | |
| 77 * computing it anyway. | |
| 78 */ | |
| 79 | |
| 80 /* | |
| 81 * Structure for regexp "program". This is essentially a linear encoding | |
| 82 * of a nondeterministic finite-state machine (aka syntax charts or | |
| 83 * "railroad normal form" in parsing technology). Each node is an opcode | |
| 84 * plus a "next" pointer, possibly plus an operand. "Next" pointers of | |
| 85 * all nodes except BRANCH and BRACES_COMPLEX implement concatenation; a "next" | |
| 86 * pointer with a BRANCH on both ends of it is connecting two alternatives. | |
| 87 * (Here we have one of the subtle syntax dependencies: an individual BRANCH | |
| 88 * (as opposed to a collection of them) is never concatenated with anything | |
| 89 * because of operator precedence). The "next" pointer of a BRACES_COMPLEX | |
| 167 | 90 * node points to the node after the stuff to be repeated. |
| 91 * The operand of some types of node is a literal string; for others, it is a | |
| 92 * node leading into a sub-FSM. In particular, the operand of a BRANCH node | |
| 93 * is the first node of the branch. | |
| 94 * (NB this is *not* a tree structure: the tail of the branch connects to the | |
| 95 * thing following the set of BRANCHes.) | |
| 7 | 96 * |
| 97 * pattern is coded like: | |
| 98 * | |
| 99 * +-----------------+ | |
| 100 * | V | |
| 101 * <aa>\|<bb> BRANCH <aa> BRANCH <bb> --> END | |
| 102 * | ^ | ^ | |
| 103 * +------+ +----------+ | |
| 104 * | |
| 105 * | |
| 106 * +------------------+ | |
| 107 * V | | |
| 108 * <aa>* BRANCH BRANCH <aa> --> BACK BRANCH --> NOTHING --> END | |
| 109 * | | ^ ^ | |
| 110 * | +---------------+ | | |
| 111 * +---------------------------------------------+ | |
| 112 * | |
| 113 * | |
| 167 | 114 * +----------------------+ |
| 115 * V | | |
| 233 | 116 * <aa>\+ BRANCH <aa> --> BRANCH --> BACK BRANCH --> NOTHING --> END |
| 856 | 117 * | | ^ ^ |
| 118 * | +-----------+ | | |
| 179 | 119 * +--------------------------------------------------+ |
| 167 | 120 * |
| 121 * | |
| 7 | 122 * +-------------------------+ |
| 123 * V | | |
| 124 * <aa>\{} BRANCH BRACE_LIMITS --> BRACE_COMPLEX <aa> --> BACK END | |
| 125 * | | ^ | |
| 126 * | +----------------+ | |
| 127 * +-----------------------------------------------+ | |
| 128 * | |
| 129 * | |
| 130 * <aa>\@!<bb> BRANCH NOMATCH <aa> --> END <bb> --> END | |
| 131 * | | ^ ^ | |
| 132 * | +----------------+ | | |
| 133 * +--------------------------------+ | |
| 134 * | |
| 135 * +---------+ | |
| 136 * | V | |
| 137 * \z[abc] BRANCH BRANCH a BRANCH b BRANCH c BRANCH NOTHING --> END | |
| 138 * | | | | ^ ^ | |
| 139 * | | | +-----+ | | |
| 140 * | | +----------------+ | | |
| 141 * | +---------------------------+ | | |
| 142 * +------------------------------------------------------+ | |
| 143 * | |
| 1209 | 144 * They all start with a BRANCH for "\|" alternatives, even when there is only |
| 7 | 145 * one alternative. |
| 146 */ | |
| 147 | |
| 148 /* | |
| 149 * The opcodes are: | |
| 150 */ | |
| 151 | |
| 152 /* definition number opnd? meaning */ | |
| 153 #define END 0 /* End of program or NOMATCH operand. */ | |
| 154 #define BOL 1 /* Match "" at beginning of line. */ | |
| 155 #define EOL 2 /* Match "" at end of line. */ | |
| 156 #define BRANCH 3 /* node Match this alternative, or the | |
| 157 * next... */ | |
| 158 #define BACK 4 /* Match "", "next" ptr points backward. */ | |
| 159 #define EXACTLY 5 /* str Match this string. */ | |
| 160 #define NOTHING 6 /* Match empty string. */ | |
| 161 #define STAR 7 /* node Match this (simple) thing 0 or more | |
| 162 * times. */ | |
| 163 #define PLUS 8 /* node Match this (simple) thing 1 or more | |
| 164 * times. */ | |
| 165 #define MATCH 9 /* node match the operand zero-width */ | |
| 166 #define NOMATCH 10 /* node check for no match with operand */ | |
| 167 #define BEHIND 11 /* node look behind for a match with operand */ | |
| 168 #define NOBEHIND 12 /* node look behind for no match with operand */ | |
| 169 #define SUBPAT 13 /* node match the operand here */ | |
| 170 #define BRACE_SIMPLE 14 /* node Match this (simple) thing between m and | |
| 171 * n times (\{m,n\}). */ | |
| 172 #define BOW 15 /* Match "" after [^a-zA-Z0-9_] */ | |
| 173 #define EOW 16 /* Match "" at [^a-zA-Z0-9_] */ | |
| 174 #define BRACE_LIMITS 17 /* nr nr define the min & max for BRACE_SIMPLE | |
| 175 * and BRACE_COMPLEX. */ | |
| 176 #define NEWL 18 /* Match line-break */ | |
| 177 #define BHPOS 19 /* End position for BEHIND or NOBEHIND */ | |
| 178 | |
| 179 | |
| 180 /* character classes: 20-48 normal, 50-78 include a line-break */ | |
| 181 #define ADD_NL 30 | |
| 182 #define FIRST_NL ANY + ADD_NL | |
| 183 #define ANY 20 /* Match any one character. */ | |
| 184 #define ANYOF 21 /* str Match any character in this string. */ | |
| 185 #define ANYBUT 22 /* str Match any character not in this | |
| 186 * string. */ | |
| 187 #define IDENT 23 /* Match identifier char */ | |
| 188 #define SIDENT 24 /* Match identifier char but no digit */ | |
| 189 #define KWORD 25 /* Match keyword char */ | |
| 190 #define SKWORD 26 /* Match word char but no digit */ | |
| 191 #define FNAME 27 /* Match file name char */ | |
| 192 #define SFNAME 28 /* Match file name char but no digit */ | |
| 193 #define PRINT 29 /* Match printable char */ | |
| 194 #define SPRINT 30 /* Match printable char but no digit */ | |
| 195 #define WHITE 31 /* Match whitespace char */ | |
| 196 #define NWHITE 32 /* Match non-whitespace char */ | |
| 197 #define DIGIT 33 /* Match digit char */ | |
| 198 #define NDIGIT 34 /* Match non-digit char */ | |
| 199 #define HEX 35 /* Match hex char */ | |
| 200 #define NHEX 36 /* Match non-hex char */ | |
| 201 #define OCTAL 37 /* Match octal char */ | |
| 202 #define NOCTAL 38 /* Match non-octal char */ | |
| 203 #define WORD 39 /* Match word char */ | |
| 204 #define NWORD 40 /* Match non-word char */ | |
| 205 #define HEAD 41 /* Match head char */ | |
| 206 #define NHEAD 42 /* Match non-head char */ | |
| 207 #define ALPHA 43 /* Match alpha char */ | |
| 208 #define NALPHA 44 /* Match non-alpha char */ | |
| 209 #define LOWER 45 /* Match lowercase char */ | |
| 210 #define NLOWER 46 /* Match non-lowercase char */ | |
| 211 #define UPPER 47 /* Match uppercase char */ | |
| 212 #define NUPPER 48 /* Match non-uppercase char */ | |
| 213 #define LAST_NL NUPPER + ADD_NL | |
| 214 #define WITH_NL(op) ((op) >= FIRST_NL && (op) <= LAST_NL) | |
| 215 | |
| 216 #define MOPEN 80 /* -89 Mark this point in input as start of | |
| 217 * \( subexpr. MOPEN + 0 marks start of | |
| 218 * match. */ | |
| 219 #define MCLOSE 90 /* -99 Analogous to MOPEN. MCLOSE + 0 marks | |
| 220 * end of match. */ | |
| 221 #define BACKREF 100 /* -109 node Match same string again \1-\9 */ | |
| 222 | |
| 223 #ifdef FEAT_SYN_HL | |
| 224 # define ZOPEN 110 /* -119 Mark this point in input as start of | |
| 225 * \z( subexpr. */ | |
| 226 # define ZCLOSE 120 /* -129 Analogous to ZOPEN. */ | |
| 227 # define ZREF 130 /* -139 node Match external submatch \z1-\z9 */ | |
| 228 #endif | |
| 229 | |
| 230 #define BRACE_COMPLEX 140 /* -149 node Match nodes between m & n times */ | |
| 231 | |
| 232 #define NOPEN 150 /* Mark this point in input as start of | |
| 233 \%( subexpr. */ | |
| 234 #define NCLOSE 151 /* Analogous to NOPEN. */ | |
| 235 | |
| 236 #define MULTIBYTECODE 200 /* mbc Match one multi-byte character */ | |
| 237 #define RE_BOF 201 /* Match "" at beginning of file. */ | |
| 238 #define RE_EOF 202 /* Match "" at end of file. */ | |
| 239 #define CURSOR 203 /* Match location of cursor. */ | |
| 240 | |
| 241 #define RE_LNUM 204 /* nr cmp Match line number */ | |
| 242 #define RE_COL 205 /* nr cmp Match column number */ | |
| 243 #define RE_VCOL 206 /* nr cmp Match virtual column number */ | |
| 244 | |
| 639 | 245 #define RE_MARK 207 /* mark cmp Match mark position */ |
| 246 #define RE_VISUAL 208 /* Match Visual area */ | |
| 5901 | 247 #define RE_COMPOSING 209 /* any composing characters */ |
| 639 | 248 |
| 7 | 249 /* |
| 250 * Magic characters have a special meaning, they don't match literally. | |
| 251 * Magic characters are negative. This separates them from literal characters | |
| 252 * (possibly multi-byte). Only ASCII characters can be Magic. | |
| 253 */ | |
| 254 #define Magic(x) ((int)(x) - 256) | |
| 255 #define un_Magic(x) ((x) + 256) | |
| 256 #define is_Magic(x) ((x) < 0) | |
| 257 | |
| 258 static int | |
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259 no_Magic(int x) |
| 7 | 260 { |
| 261 if (is_Magic(x)) | |
| 262 return un_Magic(x); | |
| 263 return x; | |
| 264 } | |
| 265 | |
| 266 static int | |
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267 toggle_Magic(int x) |
| 7 | 268 { |
| 269 if (is_Magic(x)) | |
| 270 return un_Magic(x); | |
| 271 return Magic(x); | |
| 272 } | |
| 273 | |
| 274 /* | |
| 275 * The first byte of the regexp internal "program" is actually this magic | |
| 276 * number; the start node begins in the second byte. It's used to catch the | |
| 277 * most severe mutilation of the program by the caller. | |
| 278 */ | |
| 279 | |
| 280 #define REGMAGIC 0234 | |
| 281 | |
| 282 /* | |
| 283 * Opcode notes: | |
| 284 * | |
| 285 * BRANCH The set of branches constituting a single choice are hooked | |
| 286 * together with their "next" pointers, since precedence prevents | |
| 287 * anything being concatenated to any individual branch. The | |
| 288 * "next" pointer of the last BRANCH in a choice points to the | |
| 289 * thing following the whole choice. This is also where the | |
| 290 * final "next" pointer of each individual branch points; each | |
| 291 * branch starts with the operand node of a BRANCH node. | |
| 292 * | |
| 293 * BACK Normal "next" pointers all implicitly point forward; BACK | |
| 294 * exists to make loop structures possible. | |
| 295 * | |
| 296 * STAR,PLUS '=', and complex '*' and '+', are implemented as circular | |
| 297 * BRANCH structures using BACK. Simple cases (one character | |
| 298 * per match) are implemented with STAR and PLUS for speed | |
| 299 * and to minimize recursive plunges. | |
| 300 * | |
| 301 * BRACE_LIMITS This is always followed by a BRACE_SIMPLE or BRACE_COMPLEX | |
| 302 * node, and defines the min and max limits to be used for that | |
| 303 * node. | |
| 304 * | |
| 305 * MOPEN,MCLOSE ...are numbered at compile time. | |
| 306 * ZOPEN,ZCLOSE ...ditto | |
| 307 */ | |
| 308 | |
| 309 /* | |
| 310 * A node is one char of opcode followed by two chars of "next" pointer. | |
| 311 * "Next" pointers are stored as two 8-bit bytes, high order first. The | |
| 312 * value is a positive offset from the opcode of the node containing it. | |
| 313 * An operand, if any, simply follows the node. (Note that much of the | |
| 314 * code generation knows about this implicit relationship.) | |
| 315 * | |
| 316 * Using two bytes for the "next" pointer is vast overkill for most things, | |
| 317 * but allows patterns to get big without disasters. | |
| 318 */ | |
| 319 #define OP(p) ((int)*(p)) | |
| 320 #define NEXT(p) (((*((p) + 1) & 0377) << 8) + (*((p) + 2) & 0377)) | |
| 321 #define OPERAND(p) ((p) + 3) | |
| 322 /* Obtain an operand that was stored as four bytes, MSB first. */ | |
| 323 #define OPERAND_MIN(p) (((long)(p)[3] << 24) + ((long)(p)[4] << 16) \ | |
| 324 + ((long)(p)[5] << 8) + (long)(p)[6]) | |
| 325 /* Obtain a second operand stored as four bytes. */ | |
| 326 #define OPERAND_MAX(p) OPERAND_MIN((p) + 4) | |
| 327 /* Obtain a second single-byte operand stored after a four bytes operand. */ | |
| 328 #define OPERAND_CMP(p) (p)[7] | |
| 329 | |
| 330 /* | |
| 331 * Utility definitions. | |
| 332 */ | |
| 333 #define UCHARAT(p) ((int)*(char_u *)(p)) | |
| 334 | |
| 335 /* Used for an error (down from) vim_regcomp(): give the error message, set | |
| 336 * rc_did_emsg and return NULL */ | |
| 653 | 337 #define EMSG_RET_NULL(m) return (EMSG(m), rc_did_emsg = TRUE, (void *)NULL) |
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338 #define IEMSG_RET_NULL(m) return (IEMSG(m), rc_did_emsg = TRUE, (void *)NULL) |
| 308 | 339 #define EMSG_RET_FAIL(m) return (EMSG(m), rc_did_emsg = TRUE, FAIL) |
| 4444 | 340 #define EMSG2_RET_NULL(m, c) return (EMSG2((m), (c) ? "" : "\\"), rc_did_emsg = TRUE, (void *)NULL) |
| 341 #define EMSG2_RET_FAIL(m, c) return (EMSG2((m), (c) ? "" : "\\"), rc_did_emsg = TRUE, FAIL) | |
| 342 #define EMSG_ONE_RET_NULL EMSG2_RET_NULL(_("E369: invalid item in %s%%[]"), reg_magic == MAGIC_ALL) | |
| 7 | 343 |
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344 |
| 7 | 345 #define MAX_LIMIT (32767L << 16L) |
| 346 | |
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347 static int re_multi_type(int); |
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348 static int cstrncmp(char_u *s1, char_u *s2, int *n); |
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349 static char_u *cstrchr(char_u *, int); |
| 7 | 350 |
| 4444 | 351 #ifdef BT_REGEXP_DUMP |
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352 static void regdump(char_u *, bt_regprog_T *); |
| 4444 | 353 #endif |
| 7 | 354 #ifdef DEBUG |
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355 static char_u *regprop(char_u *); |
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356 #endif |
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357 |
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358 static int re_mult_next(char *what); |
| 6203 | 359 |
| 4444 | 360 static char_u e_missingbracket[] = N_("E769: Missing ] after %s["); |
| 361 static char_u e_unmatchedpp[] = N_("E53: Unmatched %s%%("); | |
| 362 static char_u e_unmatchedp[] = N_("E54: Unmatched %s("); | |
| 363 static char_u e_unmatchedpar[] = N_("E55: Unmatched %s)"); | |
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364 #ifdef FEAT_SYN_HL |
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365 static char_u e_z_not_allowed[] = N_("E66: \\z( not allowed here"); |
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366 static char_u e_z1_not_allowed[] = N_("E67: \\z1 et al. not allowed here"); |
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367 #endif |
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368 static char_u e_missing_sb[] = N_("E69: Missing ] after %s%%["); |
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369 static char_u e_empty_sb[] = N_("E70: Empty %s%%[]"); |
| 7 | 370 #define NOT_MULTI 0 |
| 371 #define MULTI_ONE 1 | |
| 372 #define MULTI_MULT 2 | |
| 373 /* | |
| 374 * Return NOT_MULTI if c is not a "multi" operator. | |
| 375 * Return MULTI_ONE if c is a single "multi" operator. | |
| 376 * Return MULTI_MULT if c is a multi "multi" operator. | |
| 377 */ | |
| 378 static int | |
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379 re_multi_type(int c) |
| 7 | 380 { |
| 381 if (c == Magic('@') || c == Magic('=') || c == Magic('?')) | |
| 382 return MULTI_ONE; | |
| 383 if (c == Magic('*') || c == Magic('+') || c == Magic('{')) | |
| 384 return MULTI_MULT; | |
| 385 return NOT_MULTI; | |
| 386 } | |
| 387 | |
| 388 /* | |
| 389 * Flags to be passed up and down. | |
| 390 */ | |
| 391 #define HASWIDTH 0x1 /* Known never to match null string. */ | |
| 392 #define SIMPLE 0x2 /* Simple enough to be STAR/PLUS operand. */ | |
| 393 #define SPSTART 0x4 /* Starts with * or +. */ | |
| 394 #define HASNL 0x8 /* Contains some \n. */ | |
| 395 #define HASLOOKBH 0x10 /* Contains "\@<=" or "\@<!". */ | |
| 396 #define WORST 0 /* Worst case. */ | |
| 397 | |
| 398 /* | |
| 399 * When regcode is set to this value, code is not emitted and size is computed | |
| 400 * instead. | |
| 401 */ | |
| 402 #define JUST_CALC_SIZE ((char_u *) -1) | |
| 403 | |
| 359 | 404 static char_u *reg_prev_sub = NULL; |
| 405 | |
| 7 | 406 /* |
| 407 * REGEXP_INRANGE contains all characters which are always special in a [] | |
| 408 * range after '\'. | |
| 409 * REGEXP_ABBR contains all characters which act as abbreviations after '\'. | |
| 410 * These are: | |
| 411 * \n - New line (NL). | |
| 412 * \r - Carriage Return (CR). | |
| 413 * \t - Tab (TAB). | |
| 414 * \e - Escape (ESC). | |
| 415 * \b - Backspace (Ctrl_H). | |
| 24 | 416 * \d - Character code in decimal, eg \d123 |
| 417 * \o - Character code in octal, eg \o80 | |
| 418 * \x - Character code in hex, eg \x4a | |
| 419 * \u - Multibyte character code, eg \u20ac | |
| 420 * \U - Long multibyte character code, eg \U12345678 | |
| 7 | 421 */ |
| 422 static char_u REGEXP_INRANGE[] = "]^-n\\"; | |
| 24 | 423 static char_u REGEXP_ABBR[] = "nrtebdoxuU"; |
| 7 | 424 |
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425 static int backslash_trans(int c); |
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426 static int get_char_class(char_u **pp); |
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427 static int get_equi_class(char_u **pp); |
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428 static void reg_equi_class(int c); |
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429 static int get_coll_element(char_u **pp); |
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430 static char_u *skip_anyof(char_u *p); |
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431 static void init_class_tab(void); |
| 7 | 432 |
| 433 /* | |
| 434 * Translate '\x' to its control character, except "\n", which is Magic. | |
| 435 */ | |
| 436 static int | |
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437 backslash_trans(int c) |
| 7 | 438 { |
| 439 switch (c) | |
| 440 { | |
| 441 case 'r': return CAR; | |
| 442 case 't': return TAB; | |
| 443 case 'e': return ESC; | |
| 444 case 'b': return BS; | |
| 445 } | |
| 446 return c; | |
| 447 } | |
| 448 | |
| 449 /* | |
| 167 | 450 * Check for a character class name "[:name:]". "pp" points to the '['. |
| 7 | 451 * Returns one of the CLASS_ items. CLASS_NONE means that no item was |
| 452 * recognized. Otherwise "pp" is advanced to after the item. | |
| 453 */ | |
| 454 static int | |
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455 get_char_class(char_u **pp) |
| 7 | 456 { |
| 457 static const char *(class_names[]) = | |
| 458 { | |
| 459 "alnum:]", | |
| 460 #define CLASS_ALNUM 0 | |
| 461 "alpha:]", | |
| 462 #define CLASS_ALPHA 1 | |
| 463 "blank:]", | |
| 464 #define CLASS_BLANK 2 | |
| 465 "cntrl:]", | |
| 466 #define CLASS_CNTRL 3 | |
| 467 "digit:]", | |
| 468 #define CLASS_DIGIT 4 | |
| 469 "graph:]", | |
| 470 #define CLASS_GRAPH 5 | |
| 471 "lower:]", | |
| 472 #define CLASS_LOWER 6 | |
| 473 "print:]", | |
| 474 #define CLASS_PRINT 7 | |
| 475 "punct:]", | |
| 476 #define CLASS_PUNCT 8 | |
| 477 "space:]", | |
| 478 #define CLASS_SPACE 9 | |
| 479 "upper:]", | |
| 480 #define CLASS_UPPER 10 | |
| 481 "xdigit:]", | |
| 482 #define CLASS_XDIGIT 11 | |
| 483 "tab:]", | |
| 484 #define CLASS_TAB 12 | |
| 485 "return:]", | |
| 486 #define CLASS_RETURN 13 | |
| 487 "backspace:]", | |
| 488 #define CLASS_BACKSPACE 14 | |
| 489 "escape:]", | |
| 490 #define CLASS_ESCAPE 15 | |
| 491 }; | |
| 492 #define CLASS_NONE 99 | |
| 493 int i; | |
| 494 | |
| 495 if ((*pp)[1] == ':') | |
| 496 { | |
| 1877 | 497 for (i = 0; i < (int)(sizeof(class_names) / sizeof(*class_names)); ++i) |
| 7 | 498 if (STRNCMP(*pp + 2, class_names[i], STRLEN(class_names[i])) == 0) |
| 499 { | |
| 500 *pp += STRLEN(class_names[i]) + 2; | |
| 501 return i; | |
| 502 } | |
| 503 } | |
| 504 return CLASS_NONE; | |
| 505 } | |
| 506 | |
| 507 /* | |
| 508 * Specific version of character class functions. | |
| 509 * Using a table to keep this fast. | |
| 510 */ | |
| 511 static short class_tab[256]; | |
| 512 | |
| 513 #define RI_DIGIT 0x01 | |
| 514 #define RI_HEX 0x02 | |
| 515 #define RI_OCTAL 0x04 | |
| 516 #define RI_WORD 0x08 | |
| 517 #define RI_HEAD 0x10 | |
| 518 #define RI_ALPHA 0x20 | |
| 519 #define RI_LOWER 0x40 | |
| 520 #define RI_UPPER 0x80 | |
| 521 #define RI_WHITE 0x100 | |
| 522 | |
| 523 static void | |
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524 init_class_tab(void) |
| 7 | 525 { |
| 526 int i; | |
| 527 static int done = FALSE; | |
| 528 | |
| 529 if (done) | |
| 530 return; | |
| 531 | |
| 532 for (i = 0; i < 256; ++i) | |
| 533 { | |
| 534 if (i >= '0' && i <= '7') | |
| 535 class_tab[i] = RI_DIGIT + RI_HEX + RI_OCTAL + RI_WORD; | |
| 536 else if (i >= '8' && i <= '9') | |
| 537 class_tab[i] = RI_DIGIT + RI_HEX + RI_WORD; | |
| 538 else if (i >= 'a' && i <= 'f') | |
| 539 class_tab[i] = RI_HEX + RI_WORD + RI_HEAD + RI_ALPHA + RI_LOWER; | |
| 540 #ifdef EBCDIC | |
| 541 else if ((i >= 'g' && i <= 'i') || (i >= 'j' && i <= 'r') | |
| 542 || (i >= 's' && i <= 'z')) | |
| 543 #else | |
| 544 else if (i >= 'g' && i <= 'z') | |
| 545 #endif | |
| 546 class_tab[i] = RI_WORD + RI_HEAD + RI_ALPHA + RI_LOWER; | |
| 547 else if (i >= 'A' && i <= 'F') | |
| 548 class_tab[i] = RI_HEX + RI_WORD + RI_HEAD + RI_ALPHA + RI_UPPER; | |
| 549 #ifdef EBCDIC | |
| 550 else if ((i >= 'G' && i <= 'I') || ( i >= 'J' && i <= 'R') | |
| 551 || (i >= 'S' && i <= 'Z')) | |
| 552 #else | |
| 553 else if (i >= 'G' && i <= 'Z') | |
| 554 #endif | |
| 555 class_tab[i] = RI_WORD + RI_HEAD + RI_ALPHA + RI_UPPER; | |
| 556 else if (i == '_') | |
| 557 class_tab[i] = RI_WORD + RI_HEAD; | |
| 558 else | |
| 559 class_tab[i] = 0; | |
| 560 } | |
| 561 class_tab[' '] |= RI_WHITE; | |
| 562 class_tab['\t'] |= RI_WHITE; | |
| 563 done = TRUE; | |
| 564 } | |
| 565 | |
| 566 #ifdef FEAT_MBYTE | |
| 567 # define ri_digit(c) (c < 0x100 && (class_tab[c] & RI_DIGIT)) | |
| 568 # define ri_hex(c) (c < 0x100 && (class_tab[c] & RI_HEX)) | |
| 569 # define ri_octal(c) (c < 0x100 && (class_tab[c] & RI_OCTAL)) | |
| 570 # define ri_word(c) (c < 0x100 && (class_tab[c] & RI_WORD)) | |
| 571 # define ri_head(c) (c < 0x100 && (class_tab[c] & RI_HEAD)) | |
| 572 # define ri_alpha(c) (c < 0x100 && (class_tab[c] & RI_ALPHA)) | |
| 573 # define ri_lower(c) (c < 0x100 && (class_tab[c] & RI_LOWER)) | |
| 574 # define ri_upper(c) (c < 0x100 && (class_tab[c] & RI_UPPER)) | |
| 575 # define ri_white(c) (c < 0x100 && (class_tab[c] & RI_WHITE)) | |
| 576 #else | |
| 577 # define ri_digit(c) (class_tab[c] & RI_DIGIT) | |
| 578 # define ri_hex(c) (class_tab[c] & RI_HEX) | |
| 579 # define ri_octal(c) (class_tab[c] & RI_OCTAL) | |
| 580 # define ri_word(c) (class_tab[c] & RI_WORD) | |
| 581 # define ri_head(c) (class_tab[c] & RI_HEAD) | |
| 582 # define ri_alpha(c) (class_tab[c] & RI_ALPHA) | |
| 583 # define ri_lower(c) (class_tab[c] & RI_LOWER) | |
| 584 # define ri_upper(c) (class_tab[c] & RI_UPPER) | |
| 585 # define ri_white(c) (class_tab[c] & RI_WHITE) | |
| 586 #endif | |
| 587 | |
| 588 /* flags for regflags */ | |
| 589 #define RF_ICASE 1 /* ignore case */ | |
| 590 #define RF_NOICASE 2 /* don't ignore case */ | |
| 591 #define RF_HASNL 4 /* can match a NL */ | |
| 592 #define RF_ICOMBINE 8 /* ignore combining characters */ | |
| 593 #define RF_LOOKBH 16 /* uses "\@<=" or "\@<!" */ | |
| 594 | |
| 595 /* | |
| 596 * Global work variables for vim_regcomp(). | |
| 597 */ | |
| 598 | |
| 599 static char_u *regparse; /* Input-scan pointer. */ | |
| 600 static int prevchr_len; /* byte length of previous char */ | |
| 601 static int num_complex_braces; /* Complex \{...} count */ | |
| 602 static int regnpar; /* () count. */ | |
| 603 #ifdef FEAT_SYN_HL | |
| 604 static int regnzpar; /* \z() count. */ | |
| 605 static int re_has_z; /* \z item detected */ | |
| 606 #endif | |
| 607 static char_u *regcode; /* Code-emit pointer, or JUST_CALC_SIZE */ | |
| 608 static long regsize; /* Code size. */ | |
| 2010 | 609 static int reg_toolong; /* TRUE when offset out of range */ |
| 7 | 610 static char_u had_endbrace[NSUBEXP]; /* flags, TRUE if end of () found */ |
| 611 static unsigned regflags; /* RF_ flags for prog */ | |
| 612 static long brace_min[10]; /* Minimums for complex brace repeats */ | |
| 613 static long brace_max[10]; /* Maximums for complex brace repeats */ | |
| 614 static int brace_count[10]; /* Current counts for complex brace repeats */ | |
| 615 #if defined(FEAT_SYN_HL) || defined(PROTO) | |
| 616 static int had_eol; /* TRUE when EOL found by vim_regcomp() */ | |
| 617 #endif | |
| 618 static int one_exactly = FALSE; /* only do one char for EXACTLY */ | |
| 619 | |
| 620 static int reg_magic; /* magicness of the pattern: */ | |
| 621 #define MAGIC_NONE 1 /* "\V" very unmagic */ | |
| 622 #define MAGIC_OFF 2 /* "\M" or 'magic' off */ | |
| 623 #define MAGIC_ON 3 /* "\m" or 'magic' */ | |
| 624 #define MAGIC_ALL 4 /* "\v" very magic */ | |
| 625 | |
| 626 static int reg_string; /* matching with a string instead of a buffer | |
| 627 line */ | |
| 481 | 628 static int reg_strict; /* "[abc" is illegal */ |
| 7 | 629 |
| 630 /* | |
| 631 * META contains all characters that may be magic, except '^' and '$'. | |
| 632 */ | |
| 633 | |
| 634 #ifdef EBCDIC | |
| 635 static char_u META[] = "%&()*+.123456789<=>?@ACDFHIKLMOPSUVWX[_acdfhiklmnopsuvwxz{|~"; | |
| 636 #else | |
| 637 /* META[] is used often enough to justify turning it into a table. */ | |
| 638 static char_u META_flags[] = { | |
| 639 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
| 640 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
| 641 /* % & ( ) * + . */ | |
| 642 0, 0, 0, 0, 0, 1, 1, 0, 1, 1, 1, 1, 0, 0, 1, 0, | |
| 643 /* 1 2 3 4 5 6 7 8 9 < = > ? */ | |
| 644 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 1, 1, | |
| 645 /* @ A C D F H I K L M O */ | |
| 646 1, 1, 0, 1, 1, 0, 1, 0, 1, 1, 0, 1, 1, 1, 0, 1, | |
| 647 /* P S U V W X Z [ _ */ | |
| 648 1, 0, 0, 1, 0, 1, 1, 1, 1, 0, 1, 1, 0, 0, 0, 1, | |
| 649 /* a c d f h i k l m n o */ | |
| 650 0, 1, 0, 1, 1, 0, 1, 0, 1, 1, 0, 1, 1, 1, 1, 1, | |
| 651 /* p s u v w x z { | ~ */ | |
| 652 1, 0, 0, 1, 0, 1, 1, 1, 1, 0, 1, 1, 1, 0, 1 | |
| 653 }; | |
| 654 #endif | |
| 655 | |
| 4444 | 656 static int curchr; /* currently parsed character */ |
| 657 /* Previous character. Note: prevchr is sometimes -1 when we are not at the | |
| 658 * start, eg in /[ ^I]^ the pattern was never found even if it existed, | |
| 659 * because ^ was taken to be magic -- webb */ | |
| 660 static int prevchr; | |
| 661 static int prevprevchr; /* previous-previous character */ | |
| 662 static int nextchr; /* used for ungetchr() */ | |
| 7 | 663 |
| 664 /* arguments for reg() */ | |
| 665 #define REG_NOPAREN 0 /* toplevel reg() */ | |
| 666 #define REG_PAREN 1 /* \(\) */ | |
| 667 #define REG_ZPAREN 2 /* \z(\) */ | |
| 668 #define REG_NPAREN 3 /* \%(\) */ | |
| 669 | |
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670 typedef struct |
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671 { |
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672 char_u *regparse; |
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673 int prevchr_len; |
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674 int curchr; |
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675 int prevchr; |
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676 int prevprevchr; |
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677 int nextchr; |
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678 int at_start; |
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679 int prev_at_start; |
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680 int regnpar; |
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681 } parse_state_T; |
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682 |
| 7 | 683 /* |
| 684 * Forward declarations for vim_regcomp()'s friends. | |
| 685 */ | |
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686 static void initchr(char_u *); |
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687 static void save_parse_state(parse_state_T *ps); |
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688 static void restore_parse_state(parse_state_T *ps); |
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689 static int getchr(void); |
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690 static void skipchr_keepstart(void); |
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691 static int peekchr(void); |
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692 static void skipchr(void); |
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693 static void ungetchr(void); |
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694 static int gethexchrs(int maxinputlen); |
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695 static int getoctchrs(void); |
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696 static int getdecchrs(void); |
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697 static int coll_get_char(void); |
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698 static void regcomp_start(char_u *expr, int flags); |
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699 static char_u *reg(int, int *); |
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700 static char_u *regbranch(int *flagp); |
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701 static char_u *regconcat(int *flagp); |
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702 static char_u *regpiece(int *); |
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703 static char_u *regatom(int *); |
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704 static char_u *regnode(int); |
| 714 | 705 #ifdef FEAT_MBYTE |
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706 static int use_multibytecode(int c); |
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707 #endif |
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708 static int prog_magic_wrong(void); |
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709 static char_u *regnext(char_u *); |
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710 static void regc(int b); |
| 7 | 711 #ifdef FEAT_MBYTE |
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712 static void regmbc(int c); |
| 2974 | 713 # define REGMBC(x) regmbc(x); |
| 714 # define CASEMBC(x) case x: | |
| 167 | 715 #else |
| 716 # define regmbc(c) regc(c) | |
| 2974 | 717 # define REGMBC(x) |
| 718 # define CASEMBC(x) | |
| 7 | 719 #endif |
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720 static void reginsert(int, char_u *); |
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721 static void reginsert_nr(int op, long val, char_u *opnd); |
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722 static void reginsert_limits(int, long, long, char_u *); |
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723 static char_u *re_put_long(char_u *pr, long_u val); |
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724 static int read_limits(long *, long *); |
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725 static void regtail(char_u *, char_u *); |
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726 static void regoptail(char_u *, char_u *); |
| 7 | 727 |
| 4444 | 728 static regengine_T bt_regengine; |
| 729 static regengine_T nfa_regengine; | |
| 730 | |
| 7 | 731 /* |
| 732 * Return TRUE if compiled regular expression "prog" can match a line break. | |
| 733 */ | |
| 734 int | |
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735 re_multiline(regprog_T *prog) |
| 7 | 736 { |
| 737 return (prog->regflags & RF_HASNL); | |
| 738 } | |
| 739 | |
| 740 /* | |
| 741 * Return TRUE if compiled regular expression "prog" looks before the start | |
| 742 * position (pattern contains "\@<=" or "\@<!"). | |
| 743 */ | |
| 744 int | |
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745 re_lookbehind(regprog_T *prog) |
| 7 | 746 { |
| 747 return (prog->regflags & RF_LOOKBH); | |
| 748 } | |
| 749 | |
| 750 /* | |
| 167 | 751 * Check for an equivalence class name "[=a=]". "pp" points to the '['. |
| 752 * Returns a character representing the class. Zero means that no item was | |
| 753 * recognized. Otherwise "pp" is advanced to after the item. | |
| 754 */ | |
| 755 static int | |
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756 get_equi_class(char_u **pp) |
| 167 | 757 { |
| 758 int c; | |
| 759 int l = 1; | |
| 760 char_u *p = *pp; | |
| 761 | |
| 762 if (p[1] == '=') | |
| 763 { | |
| 764 #ifdef FEAT_MBYTE | |
| 765 if (has_mbyte) | |
| 474 | 766 l = (*mb_ptr2len)(p + 2); |
| 167 | 767 #endif |
| 768 if (p[l + 2] == '=' && p[l + 3] == ']') | |
| 769 { | |
| 770 #ifdef FEAT_MBYTE | |
| 771 if (has_mbyte) | |
| 772 c = mb_ptr2char(p + 2); | |
| 773 else | |
| 774 #endif | |
| 775 c = p[2]; | |
| 776 *pp += l + 4; | |
| 777 return c; | |
| 778 } | |
| 779 } | |
| 780 return 0; | |
| 781 } | |
| 782 | |
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783 #ifdef EBCDIC |
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784 /* |
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785 * Table for equivalence class "c". (IBM-1047) |
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786 */ |
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787 char *EQUIVAL_CLASS_C[16] = { |
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788 "A\x62\x63\x64\x65\x66\x67", |
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789 "C\x68", |
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790 "E\x71\x72\x73\x74", |
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791 "I\x75\x76\x77\x78", |
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792 "N\x69", |
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793 "O\xEB\xEC\xED\xEE\xEF\x80", |
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794 "U\xFB\xFC\xFD\xFE", |
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795 "Y\xBA", |
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796 "a\x42\x43\x44\x45\x46\x47", |
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797 "c\x48", |
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798 "e\x51\x52\x53\x54", |
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799 "i\x55\x56\x57\x58", |
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800 "n\x49", |
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801 "o\xCB\xCC\xCD\xCE\xCF\x70", |
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802 "u\xDB\xDC\xDD\xDE", |
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803 "y\x8D\xDF", |
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804 }; |
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805 #endif |
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806 |
| 167 | 807 /* |
| 808 * Produce the bytes for equivalence class "c". | |
| 809 * Currently only handles latin1, latin9 and utf-8. | |
| 4444 | 810 * NOTE: When changing this function, also change nfa_emit_equi_class() |
| 167 | 811 */ |
| 812 static void | |
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813 reg_equi_class(int c) |
| 167 | 814 { |
| 815 #ifdef FEAT_MBYTE | |
| 816 if (enc_utf8 || STRCMP(p_enc, "latin1") == 0 | |
| 492 | 817 || STRCMP(p_enc, "iso-8859-15") == 0) |
| 167 | 818 #endif |
| 819 { | |
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820 #ifdef EBCDIC |
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821 int i; |
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822 |
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823 /* This might be slower than switch/case below. */ |
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824 for (i = 0; i < 16; i++) |
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825 { |
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826 if (vim_strchr(EQUIVAL_CLASS_C[i], c) != NULL) |
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827 { |
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828 char *p = EQUIVAL_CLASS_C[i]; |
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829 |
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830 while (*p != 0) |
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831 regmbc(*p++); |
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832 return; |
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833 } |
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834 } |
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835 #else |
| 167 | 836 switch (c) |
| 837 { | |
| 6765 | 838 /* Do not use '\300' style, it results in a negative number. */ |
| 839 case 'A': case 0xc0: case 0xc1: case 0xc2: | |
| 840 case 0xc3: case 0xc4: case 0xc5: | |
| 2974 | 841 CASEMBC(0x100) CASEMBC(0x102) CASEMBC(0x104) CASEMBC(0x1cd) |
| 842 CASEMBC(0x1de) CASEMBC(0x1e0) CASEMBC(0x1ea2) | |
| 6765 | 843 regmbc('A'); regmbc(0xc0); regmbc(0xc1); |
| 844 regmbc(0xc2); regmbc(0xc3); regmbc(0xc4); | |
| 845 regmbc(0xc5); | |
| 2974 | 846 REGMBC(0x100) REGMBC(0x102) REGMBC(0x104) |
| 847 REGMBC(0x1cd) REGMBC(0x1de) REGMBC(0x1e0) | |
| 848 REGMBC(0x1ea2) | |
| 849 return; | |
| 850 case 'B': CASEMBC(0x1e02) CASEMBC(0x1e06) | |
| 851 regmbc('B'); REGMBC(0x1e02) REGMBC(0x1e06) | |
| 167 | 852 return; |
| 6765 | 853 case 'C': case 0xc7: |
| 2974 | 854 CASEMBC(0x106) CASEMBC(0x108) CASEMBC(0x10a) CASEMBC(0x10c) |
| 6765 | 855 regmbc('C'); regmbc(0xc7); |
| 2974 | 856 REGMBC(0x106) REGMBC(0x108) REGMBC(0x10a) |
| 857 REGMBC(0x10c) | |
| 858 return; | |
| 859 case 'D': CASEMBC(0x10e) CASEMBC(0x110) CASEMBC(0x1e0a) | |
| 860 CASEMBC(0x1e0e) CASEMBC(0x1e10) | |
| 861 regmbc('D'); REGMBC(0x10e) REGMBC(0x110) | |
| 862 REGMBC(0x1e0a) REGMBC(0x1e0e) REGMBC(0x1e10) | |
| 167 | 863 return; |
| 6765 | 864 case 'E': case 0xc8: case 0xc9: case 0xca: case 0xcb: |
| 2974 | 865 CASEMBC(0x112) CASEMBC(0x114) CASEMBC(0x116) CASEMBC(0x118) |
| 866 CASEMBC(0x11a) CASEMBC(0x1eba) CASEMBC(0x1ebc) | |
| 6765 | 867 regmbc('E'); regmbc(0xc8); regmbc(0xc9); |
| 868 regmbc(0xca); regmbc(0xcb); | |
| 2974 | 869 REGMBC(0x112) REGMBC(0x114) REGMBC(0x116) |
| 870 REGMBC(0x118) REGMBC(0x11a) REGMBC(0x1eba) | |
| 871 REGMBC(0x1ebc) | |
| 872 return; | |
| 873 case 'F': CASEMBC(0x1e1e) | |
| 874 regmbc('F'); REGMBC(0x1e1e) | |
| 875 return; | |
| 876 case 'G': CASEMBC(0x11c) CASEMBC(0x11e) CASEMBC(0x120) | |
| 877 CASEMBC(0x122) CASEMBC(0x1e4) CASEMBC(0x1e6) CASEMBC(0x1f4) | |
| 878 CASEMBC(0x1e20) | |
| 879 regmbc('G'); REGMBC(0x11c) REGMBC(0x11e) | |
| 880 REGMBC(0x120) REGMBC(0x122) REGMBC(0x1e4) | |
| 881 REGMBC(0x1e6) REGMBC(0x1f4) REGMBC(0x1e20) | |
| 882 return; | |
| 883 case 'H': CASEMBC(0x124) CASEMBC(0x126) CASEMBC(0x1e22) | |
| 884 CASEMBC(0x1e26) CASEMBC(0x1e28) | |
| 885 regmbc('H'); REGMBC(0x124) REGMBC(0x126) | |
| 886 REGMBC(0x1e22) REGMBC(0x1e26) REGMBC(0x1e28) | |
| 167 | 887 return; |
| 6765 | 888 case 'I': case 0xcc: case 0xcd: case 0xce: case 0xcf: |
| 2974 | 889 CASEMBC(0x128) CASEMBC(0x12a) CASEMBC(0x12c) CASEMBC(0x12e) |
| 890 CASEMBC(0x130) CASEMBC(0x1cf) CASEMBC(0x1ec8) | |
| 6765 | 891 regmbc('I'); regmbc(0xcc); regmbc(0xcd); |
| 892 regmbc(0xce); regmbc(0xcf); | |
| 2974 | 893 REGMBC(0x128) REGMBC(0x12a) REGMBC(0x12c) |
| 894 REGMBC(0x12e) REGMBC(0x130) REGMBC(0x1cf) | |
| 895 REGMBC(0x1ec8) | |
| 896 return; | |
| 897 case 'J': CASEMBC(0x134) | |
| 898 regmbc('J'); REGMBC(0x134) | |
| 899 return; | |
| 900 case 'K': CASEMBC(0x136) CASEMBC(0x1e8) CASEMBC(0x1e30) | |
| 901 CASEMBC(0x1e34) | |
| 902 regmbc('K'); REGMBC(0x136) REGMBC(0x1e8) | |
| 903 REGMBC(0x1e30) REGMBC(0x1e34) | |
| 904 return; | |
| 905 case 'L': CASEMBC(0x139) CASEMBC(0x13b) CASEMBC(0x13d) | |
| 906 CASEMBC(0x13f) CASEMBC(0x141) CASEMBC(0x1e3a) | |
| 907 regmbc('L'); REGMBC(0x139) REGMBC(0x13b) | |
| 908 REGMBC(0x13d) REGMBC(0x13f) REGMBC(0x141) | |
| 909 REGMBC(0x1e3a) | |
| 910 return; | |
| 911 case 'M': CASEMBC(0x1e3e) CASEMBC(0x1e40) | |
| 912 regmbc('M'); REGMBC(0x1e3e) REGMBC(0x1e40) | |
| 167 | 913 return; |
| 6765 | 914 case 'N': case 0xd1: |
| 2974 | 915 CASEMBC(0x143) CASEMBC(0x145) CASEMBC(0x147) CASEMBC(0x1e44) |
| 916 CASEMBC(0x1e48) | |
| 6765 | 917 regmbc('N'); regmbc(0xd1); |
| 2974 | 918 REGMBC(0x143) REGMBC(0x145) REGMBC(0x147) |
| 919 REGMBC(0x1e44) REGMBC(0x1e48) | |
| 167 | 920 return; |
| 6765 | 921 case 'O': case 0xd2: case 0xd3: case 0xd4: case 0xd5: |
| 922 case 0xd6: case 0xd8: | |
| 2974 | 923 CASEMBC(0x14c) CASEMBC(0x14e) CASEMBC(0x150) CASEMBC(0x1a0) |
| 924 CASEMBC(0x1d1) CASEMBC(0x1ea) CASEMBC(0x1ec) CASEMBC(0x1ece) | |
| 6765 | 925 regmbc('O'); regmbc(0xd2); regmbc(0xd3); |
| 926 regmbc(0xd4); regmbc(0xd5); regmbc(0xd6); | |
| 927 regmbc(0xd8); | |
| 2974 | 928 REGMBC(0x14c) REGMBC(0x14e) REGMBC(0x150) |
| 929 REGMBC(0x1a0) REGMBC(0x1d1) REGMBC(0x1ea) | |
| 930 REGMBC(0x1ec) REGMBC(0x1ece) | |
| 931 return; | |
| 932 case 'P': case 0x1e54: case 0x1e56: | |
| 933 regmbc('P'); REGMBC(0x1e54) REGMBC(0x1e56) | |
| 934 return; | |
| 935 case 'R': CASEMBC(0x154) CASEMBC(0x156) CASEMBC(0x158) | |
| 936 CASEMBC(0x1e58) CASEMBC(0x1e5e) | |
| 937 regmbc('R'); REGMBC(0x154) REGMBC(0x156) REGMBC(0x158) | |
| 938 REGMBC(0x1e58) REGMBC(0x1e5e) | |
| 939 return; | |
| 940 case 'S': CASEMBC(0x15a) CASEMBC(0x15c) CASEMBC(0x15e) | |
| 941 CASEMBC(0x160) CASEMBC(0x1e60) | |
| 942 regmbc('S'); REGMBC(0x15a) REGMBC(0x15c) | |
| 943 REGMBC(0x15e) REGMBC(0x160) REGMBC(0x1e60) | |
| 944 return; | |
| 945 case 'T': CASEMBC(0x162) CASEMBC(0x164) CASEMBC(0x166) | |
| 946 CASEMBC(0x1e6a) CASEMBC(0x1e6e) | |
| 947 regmbc('T'); REGMBC(0x162) REGMBC(0x164) | |
| 948 REGMBC(0x166) REGMBC(0x1e6a) REGMBC(0x1e6e) | |
| 167 | 949 return; |
| 6765 | 950 case 'U': case 0xd9: case 0xda: case 0xdb: case 0xdc: |
| 2974 | 951 CASEMBC(0x168) CASEMBC(0x16a) CASEMBC(0x16c) CASEMBC(0x16e) |
| 952 CASEMBC(0x170) CASEMBC(0x172) CASEMBC(0x1af) CASEMBC(0x1d3) | |
| 953 CASEMBC(0x1ee6) | |
| 6765 | 954 regmbc('U'); regmbc(0xd9); regmbc(0xda); |
| 955 regmbc(0xdb); regmbc(0xdc); | |
| 2974 | 956 REGMBC(0x168) REGMBC(0x16a) REGMBC(0x16c) |
| 957 REGMBC(0x16e) REGMBC(0x170) REGMBC(0x172) | |
| 958 REGMBC(0x1af) REGMBC(0x1d3) REGMBC(0x1ee6) | |
| 959 return; | |
| 960 case 'V': CASEMBC(0x1e7c) | |
| 961 regmbc('V'); REGMBC(0x1e7c) | |
| 962 return; | |
| 963 case 'W': CASEMBC(0x174) CASEMBC(0x1e80) CASEMBC(0x1e82) | |
| 964 CASEMBC(0x1e84) CASEMBC(0x1e86) | |
| 965 regmbc('W'); REGMBC(0x174) REGMBC(0x1e80) | |
| 966 REGMBC(0x1e82) REGMBC(0x1e84) REGMBC(0x1e86) | |
| 967 return; | |
| 968 case 'X': CASEMBC(0x1e8a) CASEMBC(0x1e8c) | |
| 969 regmbc('X'); REGMBC(0x1e8a) REGMBC(0x1e8c) | |
| 167 | 970 return; |
| 6765 | 971 case 'Y': case 0xdd: |
| 2974 | 972 CASEMBC(0x176) CASEMBC(0x178) CASEMBC(0x1e8e) CASEMBC(0x1ef2) |
| 973 CASEMBC(0x1ef6) CASEMBC(0x1ef8) | |
| 6765 | 974 regmbc('Y'); regmbc(0xdd); |
| 2974 | 975 REGMBC(0x176) REGMBC(0x178) REGMBC(0x1e8e) |
| 976 REGMBC(0x1ef2) REGMBC(0x1ef6) REGMBC(0x1ef8) | |
| 977 return; | |
| 978 case 'Z': CASEMBC(0x179) CASEMBC(0x17b) CASEMBC(0x17d) | |
| 979 CASEMBC(0x1b5) CASEMBC(0x1e90) CASEMBC(0x1e94) | |
| 980 regmbc('Z'); REGMBC(0x179) REGMBC(0x17b) | |
| 981 REGMBC(0x17d) REGMBC(0x1b5) REGMBC(0x1e90) | |
| 982 REGMBC(0x1e94) | |
| 167 | 983 return; |
| 6765 | 984 case 'a': case 0xe0: case 0xe1: case 0xe2: |
| 985 case 0xe3: case 0xe4: case 0xe5: | |
| 2974 | 986 CASEMBC(0x101) CASEMBC(0x103) CASEMBC(0x105) CASEMBC(0x1ce) |
| 987 CASEMBC(0x1df) CASEMBC(0x1e1) CASEMBC(0x1ea3) | |
| 6765 | 988 regmbc('a'); regmbc(0xe0); regmbc(0xe1); |
| 989 regmbc(0xe2); regmbc(0xe3); regmbc(0xe4); | |
| 990 regmbc(0xe5); | |
| 2974 | 991 REGMBC(0x101) REGMBC(0x103) REGMBC(0x105) |
| 992 REGMBC(0x1ce) REGMBC(0x1df) REGMBC(0x1e1) | |
| 993 REGMBC(0x1ea3) | |
| 994 return; | |
| 995 case 'b': CASEMBC(0x1e03) CASEMBC(0x1e07) | |
| 996 regmbc('b'); REGMBC(0x1e03) REGMBC(0x1e07) | |
| 167 | 997 return; |
| 6765 | 998 case 'c': case 0xe7: |
| 2974 | 999 CASEMBC(0x107) CASEMBC(0x109) CASEMBC(0x10b) CASEMBC(0x10d) |
| 6765 | 1000 regmbc('c'); regmbc(0xe7); |
| 2974 | 1001 REGMBC(0x107) REGMBC(0x109) REGMBC(0x10b) |
| 1002 REGMBC(0x10d) | |
| 1003 return; | |
| 6914 | 1004 case 'd': CASEMBC(0x10f) CASEMBC(0x111) CASEMBC(0x1e0b) |
| 1005 CASEMBC(0x1e0f) CASEMBC(0x1e11) | |
| 2974 | 1006 regmbc('d'); REGMBC(0x10f) REGMBC(0x111) |
| 6914 | 1007 REGMBC(0x1e0b) REGMBC(0x1e0f) REGMBC(0x1e11) |
| 167 | 1008 return; |
| 6765 | 1009 case 'e': case 0xe8: case 0xe9: case 0xea: case 0xeb: |
| 2974 | 1010 CASEMBC(0x113) CASEMBC(0x115) CASEMBC(0x117) CASEMBC(0x119) |
| 1011 CASEMBC(0x11b) CASEMBC(0x1ebb) CASEMBC(0x1ebd) | |
| 6765 | 1012 regmbc('e'); regmbc(0xe8); regmbc(0xe9); |
| 1013 regmbc(0xea); regmbc(0xeb); | |
| 2974 | 1014 REGMBC(0x113) REGMBC(0x115) REGMBC(0x117) |
| 1015 REGMBC(0x119) REGMBC(0x11b) REGMBC(0x1ebb) | |
| 1016 REGMBC(0x1ebd) | |
| 1017 return; | |
| 1018 case 'f': CASEMBC(0x1e1f) | |
| 1019 regmbc('f'); REGMBC(0x1e1f) | |
| 1020 return; | |
| 1021 case 'g': CASEMBC(0x11d) CASEMBC(0x11f) CASEMBC(0x121) | |
| 1022 CASEMBC(0x123) CASEMBC(0x1e5) CASEMBC(0x1e7) CASEMBC(0x1f5) | |
| 1023 CASEMBC(0x1e21) | |
| 1024 regmbc('g'); REGMBC(0x11d) REGMBC(0x11f) | |
| 1025 REGMBC(0x121) REGMBC(0x123) REGMBC(0x1e5) | |
| 1026 REGMBC(0x1e7) REGMBC(0x1f5) REGMBC(0x1e21) | |
| 1027 return; | |
| 1028 case 'h': CASEMBC(0x125) CASEMBC(0x127) CASEMBC(0x1e23) | |
| 1029 CASEMBC(0x1e27) CASEMBC(0x1e29) CASEMBC(0x1e96) | |
| 1030 regmbc('h'); REGMBC(0x125) REGMBC(0x127) | |
| 1031 REGMBC(0x1e23) REGMBC(0x1e27) REGMBC(0x1e29) | |
| 1032 REGMBC(0x1e96) | |
| 167 | 1033 return; |
| 6765 | 1034 case 'i': case 0xec: case 0xed: case 0xee: case 0xef: |
| 2974 | 1035 CASEMBC(0x129) CASEMBC(0x12b) CASEMBC(0x12d) CASEMBC(0x12f) |
| 1036 CASEMBC(0x1d0) CASEMBC(0x1ec9) | |
| 6765 | 1037 regmbc('i'); regmbc(0xec); regmbc(0xed); |
| 1038 regmbc(0xee); regmbc(0xef); | |
| 2974 | 1039 REGMBC(0x129) REGMBC(0x12b) REGMBC(0x12d) |
| 1040 REGMBC(0x12f) REGMBC(0x1d0) REGMBC(0x1ec9) | |
| 1041 return; | |
| 1042 case 'j': CASEMBC(0x135) CASEMBC(0x1f0) | |
| 1043 regmbc('j'); REGMBC(0x135) REGMBC(0x1f0) | |
| 1044 return; | |
| 1045 case 'k': CASEMBC(0x137) CASEMBC(0x1e9) CASEMBC(0x1e31) | |
| 1046 CASEMBC(0x1e35) | |
| 1047 regmbc('k'); REGMBC(0x137) REGMBC(0x1e9) | |
| 1048 REGMBC(0x1e31) REGMBC(0x1e35) | |
| 1049 return; | |
| 1050 case 'l': CASEMBC(0x13a) CASEMBC(0x13c) CASEMBC(0x13e) | |
| 1051 CASEMBC(0x140) CASEMBC(0x142) CASEMBC(0x1e3b) | |
| 1052 regmbc('l'); REGMBC(0x13a) REGMBC(0x13c) | |
| 1053 REGMBC(0x13e) REGMBC(0x140) REGMBC(0x142) | |
| 1054 REGMBC(0x1e3b) | |
| 1055 return; | |
| 1056 case 'm': CASEMBC(0x1e3f) CASEMBC(0x1e41) | |
| 1057 regmbc('m'); REGMBC(0x1e3f) REGMBC(0x1e41) | |
| 167 | 1058 return; |
| 6765 | 1059 case 'n': case 0xf1: |
| 2974 | 1060 CASEMBC(0x144) CASEMBC(0x146) CASEMBC(0x148) CASEMBC(0x149) |
| 1061 CASEMBC(0x1e45) CASEMBC(0x1e49) | |
| 6765 | 1062 regmbc('n'); regmbc(0xf1); |
| 2974 | 1063 REGMBC(0x144) REGMBC(0x146) REGMBC(0x148) |
| 1064 REGMBC(0x149) REGMBC(0x1e45) REGMBC(0x1e49) | |
| 167 | 1065 return; |
| 6765 | 1066 case 'o': case 0xf2: case 0xf3: case 0xf4: case 0xf5: |
| 1067 case 0xf6: case 0xf8: | |
| 2974 | 1068 CASEMBC(0x14d) CASEMBC(0x14f) CASEMBC(0x151) CASEMBC(0x1a1) |
| 1069 CASEMBC(0x1d2) CASEMBC(0x1eb) CASEMBC(0x1ed) CASEMBC(0x1ecf) | |
| 6765 | 1070 regmbc('o'); regmbc(0xf2); regmbc(0xf3); |
| 1071 regmbc(0xf4); regmbc(0xf5); regmbc(0xf6); | |
| 1072 regmbc(0xf8); | |
| 2974 | 1073 REGMBC(0x14d) REGMBC(0x14f) REGMBC(0x151) |
| 1074 REGMBC(0x1a1) REGMBC(0x1d2) REGMBC(0x1eb) | |
| 1075 REGMBC(0x1ed) REGMBC(0x1ecf) | |
| 1076 return; | |
| 1077 case 'p': CASEMBC(0x1e55) CASEMBC(0x1e57) | |
| 1078 regmbc('p'); REGMBC(0x1e55) REGMBC(0x1e57) | |
| 1079 return; | |
| 1080 case 'r': CASEMBC(0x155) CASEMBC(0x157) CASEMBC(0x159) | |
| 1081 CASEMBC(0x1e59) CASEMBC(0x1e5f) | |
| 1082 regmbc('r'); REGMBC(0x155) REGMBC(0x157) REGMBC(0x159) | |
| 1083 REGMBC(0x1e59) REGMBC(0x1e5f) | |
| 1084 return; | |
| 1085 case 's': CASEMBC(0x15b) CASEMBC(0x15d) CASEMBC(0x15f) | |
| 1086 CASEMBC(0x161) CASEMBC(0x1e61) | |
| 1087 regmbc('s'); REGMBC(0x15b) REGMBC(0x15d) | |
| 1088 REGMBC(0x15f) REGMBC(0x161) REGMBC(0x1e61) | |
| 1089 return; | |
| 1090 case 't': CASEMBC(0x163) CASEMBC(0x165) CASEMBC(0x167) | |
| 1091 CASEMBC(0x1e6b) CASEMBC(0x1e6f) CASEMBC(0x1e97) | |
| 1092 regmbc('t'); REGMBC(0x163) REGMBC(0x165) REGMBC(0x167) | |
| 1093 REGMBC(0x1e6b) REGMBC(0x1e6f) REGMBC(0x1e97) | |
| 167 | 1094 return; |
| 6765 | 1095 case 'u': case 0xf9: case 0xfa: case 0xfb: case 0xfc: |
| 2974 | 1096 CASEMBC(0x169) CASEMBC(0x16b) CASEMBC(0x16d) CASEMBC(0x16f) |
| 1097 CASEMBC(0x171) CASEMBC(0x173) CASEMBC(0x1b0) CASEMBC(0x1d4) | |
| 1098 CASEMBC(0x1ee7) | |
| 6765 | 1099 regmbc('u'); regmbc(0xf9); regmbc(0xfa); |
| 1100 regmbc(0xfb); regmbc(0xfc); | |
| 2974 | 1101 REGMBC(0x169) REGMBC(0x16b) REGMBC(0x16d) |
| 1102 REGMBC(0x16f) REGMBC(0x171) REGMBC(0x173) | |
| 1103 REGMBC(0x1b0) REGMBC(0x1d4) REGMBC(0x1ee7) | |
| 1104 return; | |
| 1105 case 'v': CASEMBC(0x1e7d) | |
| 1106 regmbc('v'); REGMBC(0x1e7d) | |
| 1107 return; | |
| 1108 case 'w': CASEMBC(0x175) CASEMBC(0x1e81) CASEMBC(0x1e83) | |
| 1109 CASEMBC(0x1e85) CASEMBC(0x1e87) CASEMBC(0x1e98) | |
| 1110 regmbc('w'); REGMBC(0x175) REGMBC(0x1e81) | |
| 1111 REGMBC(0x1e83) REGMBC(0x1e85) REGMBC(0x1e87) | |
| 1112 REGMBC(0x1e98) | |
| 1113 return; | |
| 1114 case 'x': CASEMBC(0x1e8b) CASEMBC(0x1e8d) | |
| 1115 regmbc('x'); REGMBC(0x1e8b) REGMBC(0x1e8d) | |
| 167 | 1116 return; |
| 6765 | 1117 case 'y': case 0xfd: case 0xff: |
| 2974 | 1118 CASEMBC(0x177) CASEMBC(0x1e8f) CASEMBC(0x1e99) |
| 1119 CASEMBC(0x1ef3) CASEMBC(0x1ef7) CASEMBC(0x1ef9) | |
| 6765 | 1120 regmbc('y'); regmbc(0xfd); regmbc(0xff); |
| 2974 | 1121 REGMBC(0x177) REGMBC(0x1e8f) REGMBC(0x1e99) |
| 1122 REGMBC(0x1ef3) REGMBC(0x1ef7) REGMBC(0x1ef9) | |
| 1123 return; | |
| 1124 case 'z': CASEMBC(0x17a) CASEMBC(0x17c) CASEMBC(0x17e) | |
| 1125 CASEMBC(0x1b6) CASEMBC(0x1e91) CASEMBC(0x1e95) | |
| 1126 regmbc('z'); REGMBC(0x17a) REGMBC(0x17c) | |
| 1127 REGMBC(0x17e) REGMBC(0x1b6) REGMBC(0x1e91) | |
| 1128 REGMBC(0x1e95) | |
| 167 | 1129 return; |
| 1130 } | |
|
2247
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parents:
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diff
changeset
|
1131 #endif |
| 167 | 1132 } |
| 1133 regmbc(c); | |
| 1134 } | |
| 1135 | |
| 1136 /* | |
| 1137 * Check for a collating element "[.a.]". "pp" points to the '['. | |
| 1138 * Returns a character. Zero means that no item was recognized. Otherwise | |
| 1139 * "pp" is advanced to after the item. | |
| 1140 * Currently only single characters are recognized! | |
| 1141 */ | |
| 1142 static int | |
|
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c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
1143 get_coll_element(char_u **pp) |
| 167 | 1144 { |
| 1145 int c; | |
| 1146 int l = 1; | |
| 1147 char_u *p = *pp; | |
| 1148 | |
| 6830 | 1149 if (p[0] != NUL && p[1] == '.') |
| 167 | 1150 { |
| 1151 #ifdef FEAT_MBYTE | |
| 1152 if (has_mbyte) | |
| 474 | 1153 l = (*mb_ptr2len)(p + 2); |
| 167 | 1154 #endif |
| 1155 if (p[l + 2] == '.' && p[l + 3] == ']') | |
| 1156 { | |
| 1157 #ifdef FEAT_MBYTE | |
| 1158 if (has_mbyte) | |
| 1159 c = mb_ptr2char(p + 2); | |
| 1160 else | |
| 1161 #endif | |
| 1162 c = p[2]; | |
| 1163 *pp += l + 4; | |
| 1164 return c; | |
| 1165 } | |
| 1166 } | |
| 1167 return 0; | |
| 1168 } | |
| 1169 | |
|
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0b6c37dd858d
commit https://github.com/vim/vim/commit/baaa7e9ec7398a813e21285c272fa99792642077
Christian Brabandt <cb@256bit.org>
parents:
7009
diff
changeset
|
1170 static void get_cpo_flags(void); |
|
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updated for version 7.3.1119
Bram Moolenaar <bram@vim.org>
parents:
4732
diff
changeset
|
1171 static int reg_cpo_lit; /* 'cpoptions' contains 'l' flag */ |
|
a62695305e03
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parents:
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diff
changeset
|
1172 static int reg_cpo_bsl; /* 'cpoptions' contains '\' flag */ |
|
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parents:
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diff
changeset
|
1173 |
|
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|
1174 static void |
|
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c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
1175 get_cpo_flags(void) |
|
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Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
1176 { |
|
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parents:
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changeset
|
1177 reg_cpo_lit = vim_strchr(p_cpo, CPO_LITERAL) != NULL; |
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1178 reg_cpo_bsl = vim_strchr(p_cpo, CPO_BACKSL) != NULL; |
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1179 } |
| 167 | 1180 |
| 1181 /* | |
| 1182 * Skip over a "[]" range. | |
| 1183 * "p" must point to the character after the '['. | |
| 1184 * The returned pointer is on the matching ']', or the terminating NUL. | |
| 1185 */ | |
| 1186 static char_u * | |
|
7833
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
1187 skip_anyof(char_u *p) |
| 167 | 1188 { |
| 1189 #ifdef FEAT_MBYTE | |
| 1190 int l; | |
| 1191 #endif | |
| 1192 | |
| 1193 if (*p == '^') /* Complement of range. */ | |
| 1194 ++p; | |
| 1195 if (*p == ']' || *p == '-') | |
| 1196 ++p; | |
| 1197 while (*p != NUL && *p != ']') | |
| 1198 { | |
| 1199 #ifdef FEAT_MBYTE | |
| 474 | 1200 if (has_mbyte && (l = (*mb_ptr2len)(p)) > 1) |
| 167 | 1201 p += l; |
| 1202 else | |
| 1203 #endif | |
| 1204 if (*p == '-') | |
| 1205 { | |
| 1206 ++p; | |
| 1207 if (*p != ']' && *p != NUL) | |
| 1208 mb_ptr_adv(p); | |
| 1209 } | |
| 1210 else if (*p == '\\' | |
|
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parents:
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|
1211 && !reg_cpo_bsl |
| 167 | 1212 && (vim_strchr(REGEXP_INRANGE, p[1]) != NULL |
|
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1213 || (!reg_cpo_lit && vim_strchr(REGEXP_ABBR, p[1]) != NULL))) |
| 167 | 1214 p += 2; |
| 1215 else if (*p == '[') | |
| 1216 { | |
| 1217 if (get_char_class(&p) == CLASS_NONE | |
| 1218 && get_equi_class(&p) == 0 | |
| 6830 | 1219 && get_coll_element(&p) == 0 |
| 1220 && *p != NUL) | |
| 1221 ++p; /* it is not a class name and not NUL */ | |
| 167 | 1222 } |
| 1223 else | |
| 1224 ++p; | |
| 1225 } | |
| 1226 | |
| 1227 return p; | |
| 1228 } | |
| 1229 | |
| 1230 /* | |
| 7 | 1231 * Skip past regular expression. |
| 153 | 1232 * Stop at end of "startp" or where "dirc" is found ('/', '?', etc). |
| 7 | 1233 * Take care of characters with a backslash in front of it. |
| 1234 * Skip strings inside [ and ]. | |
| 1235 * When "newp" is not NULL and "dirc" is '?', make an allocated copy of the | |
| 1236 * expression and change "\?" to "?". If "*newp" is not NULL the expression | |
| 1237 * is changed in-place. | |
| 1238 */ | |
| 1239 char_u * | |
|
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1240 skip_regexp( |
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1241 char_u *startp, |
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1242 int dirc, |
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1243 int magic, |
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1244 char_u **newp) |
| 7 | 1245 { |
| 1246 int mymagic; | |
| 1247 char_u *p = startp; | |
| 1248 | |
| 1249 if (magic) | |
| 1250 mymagic = MAGIC_ON; | |
| 1251 else | |
| 1252 mymagic = MAGIC_OFF; | |
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1253 get_cpo_flags(); |
| 7 | 1254 |
| 39 | 1255 for (; p[0] != NUL; mb_ptr_adv(p)) |
| 7 | 1256 { |
| 1257 if (p[0] == dirc) /* found end of regexp */ | |
| 1258 break; | |
| 1259 if ((p[0] == '[' && mymagic >= MAGIC_ON) | |
| 1260 || (p[0] == '\\' && p[1] == '[' && mymagic <= MAGIC_OFF)) | |
| 1261 { | |
| 1262 p = skip_anyof(p + 1); | |
| 1263 if (p[0] == NUL) | |
| 1264 break; | |
| 1265 } | |
| 1266 else if (p[0] == '\\' && p[1] != NUL) | |
| 1267 { | |
| 1268 if (dirc == '?' && newp != NULL && p[1] == '?') | |
| 1269 { | |
| 1270 /* change "\?" to "?", make a copy first. */ | |
| 1271 if (*newp == NULL) | |
| 1272 { | |
| 1273 *newp = vim_strsave(startp); | |
| 1274 if (*newp != NULL) | |
| 1275 p = *newp + (p - startp); | |
| 1276 } | |
| 1277 if (*newp != NULL) | |
| 1621 | 1278 STRMOVE(p, p + 1); |
| 7 | 1279 else |
| 1280 ++p; | |
| 1281 } | |
| 1282 else | |
| 1283 ++p; /* skip next character */ | |
| 1284 if (*p == 'v') | |
| 1285 mymagic = MAGIC_ALL; | |
| 1286 else if (*p == 'V') | |
| 1287 mymagic = MAGIC_NONE; | |
| 1288 } | |
| 1289 } | |
| 1290 return p; | |
| 1291 } | |
| 1292 | |
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1293 static regprog_T *bt_regcomp(char_u *expr, int re_flags); |
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1294 static void bt_regfree(regprog_T *prog); |
| 4444 | 1295 |
| 7 | 1296 /* |
| 4444 | 1297 * bt_regcomp() - compile a regular expression into internal code for the |
| 1298 * traditional back track matcher. | |
| 41 | 1299 * Returns the program in allocated space. Returns NULL for an error. |
| 7 | 1300 * |
| 1301 * We can't allocate space until we know how big the compiled form will be, | |
| 1302 * but we can't compile it (and thus know how big it is) until we've got a | |
| 1303 * place to put the code. So we cheat: we compile it twice, once with code | |
| 1304 * generation turned off and size counting turned on, and once "for real". | |
| 1305 * This also means that we don't allocate space until we are sure that the | |
| 1306 * thing really will compile successfully, and we never have to move the | |
| 1307 * code and thus invalidate pointers into it. (Note that it has to be in | |
| 1308 * one piece because vim_free() must be able to free it all.) | |
| 1309 * | |
| 1310 * Whether upper/lower case is to be ignored is decided when executing the | |
| 1311 * program, it does not matter here. | |
| 1312 * | |
| 1313 * Beware that the optimization-preparation code in here knows about some | |
| 1314 * of the structure of the compiled regexp. | |
| 1315 * "re_flags": RE_MAGIC and/or RE_STRING. | |
| 1316 */ | |
| 4444 | 1317 static regprog_T * |
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1318 bt_regcomp(char_u *expr, int re_flags) |
| 7 | 1319 { |
| 4444 | 1320 bt_regprog_T *r; |
| 7 | 1321 char_u *scan; |
| 1322 char_u *longest; | |
| 1323 int len; | |
| 1324 int flags; | |
| 1325 | |
| 1326 if (expr == NULL) | |
| 1327 EMSG_RET_NULL(_(e_null)); | |
| 1328 | |
| 1329 init_class_tab(); | |
| 1330 | |
| 1331 /* | |
| 1332 * First pass: determine size, legality. | |
| 1333 */ | |
| 1334 regcomp_start(expr, re_flags); | |
| 1335 regcode = JUST_CALC_SIZE; | |
| 1336 regc(REGMAGIC); | |
| 1337 if (reg(REG_NOPAREN, &flags) == NULL) | |
| 1338 return NULL; | |
| 1339 | |
| 1340 /* Allocate space. */ | |
| 4444 | 1341 r = (bt_regprog_T *)lalloc(sizeof(bt_regprog_T) + regsize, TRUE); |
| 7 | 1342 if (r == NULL) |
| 1343 return NULL; | |
| 1344 | |
| 1345 /* | |
| 1346 * Second pass: emit code. | |
| 1347 */ | |
| 1348 regcomp_start(expr, re_flags); | |
| 1349 regcode = r->program; | |
| 1350 regc(REGMAGIC); | |
| 2010 | 1351 if (reg(REG_NOPAREN, &flags) == NULL || reg_toolong) |
| 7 | 1352 { |
| 1353 vim_free(r); | |
| 2010 | 1354 if (reg_toolong) |
| 1355 EMSG_RET_NULL(_("E339: Pattern too long")); | |
| 7 | 1356 return NULL; |
| 1357 } | |
| 1358 | |
| 1359 /* Dig out information for optimizations. */ | |
| 1360 r->regstart = NUL; /* Worst-case defaults. */ | |
| 1361 r->reganch = 0; | |
| 1362 r->regmust = NULL; | |
| 1363 r->regmlen = 0; | |
| 1364 r->regflags = regflags; | |
| 1365 if (flags & HASNL) | |
| 1366 r->regflags |= RF_HASNL; | |
| 1367 if (flags & HASLOOKBH) | |
| 1368 r->regflags |= RF_LOOKBH; | |
| 1369 #ifdef FEAT_SYN_HL | |
| 1370 /* Remember whether this pattern has any \z specials in it. */ | |
| 1371 r->reghasz = re_has_z; | |
| 1372 #endif | |
| 1373 scan = r->program + 1; /* First BRANCH. */ | |
| 1374 if (OP(regnext(scan)) == END) /* Only one top-level choice. */ | |
| 1375 { | |
| 1376 scan = OPERAND(scan); | |
| 1377 | |
| 1378 /* Starting-point info. */ | |
| 1379 if (OP(scan) == BOL || OP(scan) == RE_BOF) | |
| 1380 { | |
| 1381 r->reganch++; | |
| 1382 scan = regnext(scan); | |
| 1383 } | |
| 1384 | |
| 1385 if (OP(scan) == EXACTLY) | |
| 1386 { | |
| 1387 #ifdef FEAT_MBYTE | |
| 1388 if (has_mbyte) | |
| 1389 r->regstart = (*mb_ptr2char)(OPERAND(scan)); | |
| 1390 else | |
| 1391 #endif | |
| 1392 r->regstart = *OPERAND(scan); | |
| 1393 } | |
| 1394 else if ((OP(scan) == BOW | |
| 1395 || OP(scan) == EOW | |
| 1396 || OP(scan) == NOTHING | |
| 1397 || OP(scan) == MOPEN + 0 || OP(scan) == NOPEN | |
| 1398 || OP(scan) == MCLOSE + 0 || OP(scan) == NCLOSE) | |
| 1399 && OP(regnext(scan)) == EXACTLY) | |
| 1400 { | |
| 1401 #ifdef FEAT_MBYTE | |
| 1402 if (has_mbyte) | |
| 1403 r->regstart = (*mb_ptr2char)(OPERAND(regnext(scan))); | |
| 1404 else | |
| 1405 #endif | |
| 1406 r->regstart = *OPERAND(regnext(scan)); | |
| 1407 } | |
| 1408 | |
| 1409 /* | |
| 1410 * If there's something expensive in the r.e., find the longest | |
| 1411 * literal string that must appear and make it the regmust. Resolve | |
| 1412 * ties in favor of later strings, since the regstart check works | |
| 1413 * with the beginning of the r.e. and avoiding duplication | |
| 1414 * strengthens checking. Not a strong reason, but sufficient in the | |
| 1415 * absence of others. | |
| 1416 */ | |
| 1417 /* | |
| 1418 * When the r.e. starts with BOW, it is faster to look for a regmust | |
| 1419 * first. Used a lot for "#" and "*" commands. (Added by mool). | |
| 1420 */ | |
| 1421 if ((flags & SPSTART || OP(scan) == BOW || OP(scan) == EOW) | |
| 1422 && !(flags & HASNL)) | |
| 1423 { | |
| 1424 longest = NULL; | |
| 1425 len = 0; | |
| 1426 for (; scan != NULL; scan = regnext(scan)) | |
| 1427 if (OP(scan) == EXACTLY && STRLEN(OPERAND(scan)) >= (size_t)len) | |
| 1428 { | |
| 1429 longest = OPERAND(scan); | |
| 1430 len = (int)STRLEN(OPERAND(scan)); | |
| 1431 } | |
| 1432 r->regmust = longest; | |
| 1433 r->regmlen = len; | |
| 1434 } | |
| 1435 } | |
| 4444 | 1436 #ifdef BT_REGEXP_DUMP |
| 7 | 1437 regdump(expr, r); |
| 1438 #endif | |
| 4444 | 1439 r->engine = &bt_regengine; |
| 1440 return (regprog_T *)r; | |
| 7 | 1441 } |
| 1442 | |
| 1443 /* | |
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1444 * Free a compiled regexp program, returned by bt_regcomp(). |
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1445 */ |
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1446 static void |
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1447 bt_regfree(regprog_T *prog) |
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1448 { |
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1449 vim_free(prog); |
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1450 } |
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1451 |
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1452 /* |
| 7 | 1453 * Setup to parse the regexp. Used once to get the length and once to do it. |
| 1454 */ | |
| 1455 static void | |
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1456 regcomp_start( |
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1457 char_u *expr, |
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1458 int re_flags) /* see vim_regcomp() */ |
| 7 | 1459 { |
| 1460 initchr(expr); | |
| 1461 if (re_flags & RE_MAGIC) | |
| 1462 reg_magic = MAGIC_ON; | |
| 1463 else | |
| 1464 reg_magic = MAGIC_OFF; | |
| 1465 reg_string = (re_flags & RE_STRING); | |
| 481 | 1466 reg_strict = (re_flags & RE_STRICT); |
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1467 get_cpo_flags(); |
| 7 | 1468 |
| 1469 num_complex_braces = 0; | |
| 1470 regnpar = 1; | |
| 1471 vim_memset(had_endbrace, 0, sizeof(had_endbrace)); | |
| 1472 #ifdef FEAT_SYN_HL | |
| 1473 regnzpar = 1; | |
| 1474 re_has_z = 0; | |
| 1475 #endif | |
| 1476 regsize = 0L; | |
| 2010 | 1477 reg_toolong = FALSE; |
| 7 | 1478 regflags = 0; |
| 1479 #if defined(FEAT_SYN_HL) || defined(PROTO) | |
| 1480 had_eol = FALSE; | |
| 1481 #endif | |
| 1482 } | |
| 1483 | |
| 1484 #if defined(FEAT_SYN_HL) || defined(PROTO) | |
| 1485 /* | |
| 1486 * Check if during the previous call to vim_regcomp the EOL item "$" has been | |
| 1487 * found. This is messy, but it works fine. | |
| 1488 */ | |
| 1489 int | |
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1490 vim_regcomp_had_eol(void) |
| 7 | 1491 { |
| 1492 return had_eol; | |
| 1493 } | |
| 1494 #endif | |
| 1495 | |
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1496 /* variables for parsing reginput */ |
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1497 static int at_start; /* True when on the first character */ |
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1498 static int prev_at_start; /* True when on the second character */ |
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1499 |
| 7 | 1500 /* |
| 4444 | 1501 * Parse regular expression, i.e. main body or parenthesized thing. |
| 7 | 1502 * |
| 1503 * Caller must absorb opening parenthesis. | |
| 1504 * | |
| 1505 * Combining parenthesis handling with the base level of regular expression | |
| 1506 * is a trifle forced, but the need to tie the tails of the branches to what | |
| 1507 * follows makes it hard to avoid. | |
| 1508 */ | |
| 1509 static char_u * | |
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1510 reg( |
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1511 int paren, /* REG_NOPAREN, REG_PAREN, REG_NPAREN or REG_ZPAREN */ |
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1512 int *flagp) |
| 7 | 1513 { |
| 1514 char_u *ret; | |
| 1515 char_u *br; | |
| 1516 char_u *ender; | |
| 1517 int parno = 0; | |
| 1518 int flags; | |
| 1519 | |
| 1520 *flagp = HASWIDTH; /* Tentatively. */ | |
| 1521 | |
| 1522 #ifdef FEAT_SYN_HL | |
| 1523 if (paren == REG_ZPAREN) | |
| 1524 { | |
| 1525 /* Make a ZOPEN node. */ | |
| 1526 if (regnzpar >= NSUBEXP) | |
| 1527 EMSG_RET_NULL(_("E50: Too many \\z(")); | |
| 1528 parno = regnzpar; | |
| 1529 regnzpar++; | |
| 1530 ret = regnode(ZOPEN + parno); | |
| 1531 } | |
| 1532 else | |
| 1533 #endif | |
| 1534 if (paren == REG_PAREN) | |
| 1535 { | |
| 1536 /* Make a MOPEN node. */ | |
| 1537 if (regnpar >= NSUBEXP) | |
| 4444 | 1538 EMSG2_RET_NULL(_("E51: Too many %s("), reg_magic == MAGIC_ALL); |
| 7 | 1539 parno = regnpar; |
| 1540 ++regnpar; | |
| 1541 ret = regnode(MOPEN + parno); | |
| 1542 } | |
| 1543 else if (paren == REG_NPAREN) | |
| 1544 { | |
| 1545 /* Make a NOPEN node. */ | |
| 1546 ret = regnode(NOPEN); | |
| 1547 } | |
| 1548 else | |
| 1549 ret = NULL; | |
| 1550 | |
| 1551 /* Pick up the branches, linking them together. */ | |
| 1552 br = regbranch(&flags); | |
| 1553 if (br == NULL) | |
| 1554 return NULL; | |
| 1555 if (ret != NULL) | |
| 1556 regtail(ret, br); /* [MZ]OPEN -> first. */ | |
| 1557 else | |
| 1558 ret = br; | |
| 1559 /* If one of the branches can be zero-width, the whole thing can. | |
| 1560 * If one of the branches has * at start or matches a line-break, the | |
| 1561 * whole thing can. */ | |
| 1562 if (!(flags & HASWIDTH)) | |
| 1563 *flagp &= ~HASWIDTH; | |
| 1564 *flagp |= flags & (SPSTART | HASNL | HASLOOKBH); | |
| 1565 while (peekchr() == Magic('|')) | |
| 1566 { | |
| 1567 skipchr(); | |
| 1568 br = regbranch(&flags); | |
| 2010 | 1569 if (br == NULL || reg_toolong) |
| 7 | 1570 return NULL; |
| 1571 regtail(ret, br); /* BRANCH -> BRANCH. */ | |
| 1572 if (!(flags & HASWIDTH)) | |
| 1573 *flagp &= ~HASWIDTH; | |
| 1574 *flagp |= flags & (SPSTART | HASNL | HASLOOKBH); | |
| 1575 } | |
| 1576 | |
| 1577 /* Make a closing node, and hook it on the end. */ | |
| 1578 ender = regnode( | |
| 1579 #ifdef FEAT_SYN_HL | |
| 1580 paren == REG_ZPAREN ? ZCLOSE + parno : | |
| 1581 #endif | |
| 1582 paren == REG_PAREN ? MCLOSE + parno : | |
| 1583 paren == REG_NPAREN ? NCLOSE : END); | |
| 1584 regtail(ret, ender); | |
| 1585 | |
| 1586 /* Hook the tails of the branches to the closing node. */ | |
| 1587 for (br = ret; br != NULL; br = regnext(br)) | |
| 1588 regoptail(br, ender); | |
| 1589 | |
| 1590 /* Check for proper termination. */ | |
| 1591 if (paren != REG_NOPAREN && getchr() != Magic(')')) | |
| 1592 { | |
| 1593 #ifdef FEAT_SYN_HL | |
| 1594 if (paren == REG_ZPAREN) | |
| 308 | 1595 EMSG_RET_NULL(_("E52: Unmatched \\z(")); |
| 7 | 1596 else |
| 1597 #endif | |
| 1598 if (paren == REG_NPAREN) | |
| 4444 | 1599 EMSG2_RET_NULL(_(e_unmatchedpp), reg_magic == MAGIC_ALL); |
| 7 | 1600 else |
| 4444 | 1601 EMSG2_RET_NULL(_(e_unmatchedp), reg_magic == MAGIC_ALL); |
| 7 | 1602 } |
| 1603 else if (paren == REG_NOPAREN && peekchr() != NUL) | |
| 1604 { | |
| 1605 if (curchr == Magic(')')) | |
| 4444 | 1606 EMSG2_RET_NULL(_(e_unmatchedpar), reg_magic == MAGIC_ALL); |
| 7 | 1607 else |
| 308 | 1608 EMSG_RET_NULL(_(e_trailing)); /* "Can't happen". */ |
| 7 | 1609 /* NOTREACHED */ |
| 1610 } | |
| 1611 /* | |
| 1612 * Here we set the flag allowing back references to this set of | |
| 1613 * parentheses. | |
| 1614 */ | |
| 1615 if (paren == REG_PAREN) | |
| 1616 had_endbrace[parno] = TRUE; /* have seen the close paren */ | |
| 1617 return ret; | |
| 1618 } | |
| 1619 | |
| 1620 /* | |
| 4444 | 1621 * Parse one alternative of an | operator. |
| 7 | 1622 * Implements the & operator. |
| 1623 */ | |
| 1624 static char_u * | |
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Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
1625 regbranch(int *flagp) |
| 7 | 1626 { |
| 1627 char_u *ret; | |
| 1628 char_u *chain = NULL; | |
| 1629 char_u *latest; | |
| 1630 int flags; | |
| 1631 | |
| 1632 *flagp = WORST | HASNL; /* Tentatively. */ | |
| 1633 | |
| 1634 ret = regnode(BRANCH); | |
| 1635 for (;;) | |
| 1636 { | |
| 1637 latest = regconcat(&flags); | |
| 1638 if (latest == NULL) | |
| 1639 return NULL; | |
| 1640 /* If one of the branches has width, the whole thing has. If one of | |
| 1641 * the branches anchors at start-of-line, the whole thing does. | |
| 1642 * If one of the branches uses look-behind, the whole thing does. */ | |
| 1643 *flagp |= flags & (HASWIDTH | SPSTART | HASLOOKBH); | |
| 1644 /* If one of the branches doesn't match a line-break, the whole thing | |
| 1645 * doesn't. */ | |
| 1646 *flagp &= ~HASNL | (flags & HASNL); | |
| 1647 if (chain != NULL) | |
| 1648 regtail(chain, latest); | |
| 1649 if (peekchr() != Magic('&')) | |
| 1650 break; | |
| 1651 skipchr(); | |
| 1652 regtail(latest, regnode(END)); /* operand ends */ | |
| 2010 | 1653 if (reg_toolong) |
| 1654 break; | |
| 7 | 1655 reginsert(MATCH, latest); |
| 1656 chain = latest; | |
| 1657 } | |
| 1658 | |
| 1659 return ret; | |
| 1660 } | |
| 1661 | |
| 1662 /* | |
| 4444 | 1663 * Parse one alternative of an | or & operator. |
| 7 | 1664 * Implements the concatenation operator. |
| 1665 */ | |
| 1666 static char_u * | |
|
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commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
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parents:
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diff
changeset
|
1667 regconcat(int *flagp) |
| 7 | 1668 { |
| 1669 char_u *first = NULL; | |
| 1670 char_u *chain = NULL; | |
| 1671 char_u *latest; | |
| 1672 int flags; | |
| 1673 int cont = TRUE; | |
| 1674 | |
| 1675 *flagp = WORST; /* Tentatively. */ | |
| 1676 | |
| 1677 while (cont) | |
| 1678 { | |
| 1679 switch (peekchr()) | |
| 1680 { | |
| 1681 case NUL: | |
| 1682 case Magic('|'): | |
| 1683 case Magic('&'): | |
| 1684 case Magic(')'): | |
| 1685 cont = FALSE; | |
| 1686 break; | |
| 1687 case Magic('Z'): | |
| 1688 #ifdef FEAT_MBYTE | |
| 1689 regflags |= RF_ICOMBINE; | |
| 1690 #endif | |
| 1691 skipchr_keepstart(); | |
| 1692 break; | |
| 1693 case Magic('c'): | |
| 1694 regflags |= RF_ICASE; | |
| 1695 skipchr_keepstart(); | |
| 1696 break; | |
| 1697 case Magic('C'): | |
| 1698 regflags |= RF_NOICASE; | |
| 1699 skipchr_keepstart(); | |
| 1700 break; | |
| 1701 case Magic('v'): | |
| 1702 reg_magic = MAGIC_ALL; | |
| 1703 skipchr_keepstart(); | |
| 1704 curchr = -1; | |
| 1705 break; | |
| 1706 case Magic('m'): | |
| 1707 reg_magic = MAGIC_ON; | |
| 1708 skipchr_keepstart(); | |
| 1709 curchr = -1; | |
| 1710 break; | |
| 1711 case Magic('M'): | |
| 1712 reg_magic = MAGIC_OFF; | |
| 1713 skipchr_keepstart(); | |
| 1714 curchr = -1; | |
| 1715 break; | |
| 1716 case Magic('V'): | |
| 1717 reg_magic = MAGIC_NONE; | |
| 1718 skipchr_keepstart(); | |
| 1719 curchr = -1; | |
| 1720 break; | |
| 1721 default: | |
| 1722 latest = regpiece(&flags); | |
| 2010 | 1723 if (latest == NULL || reg_toolong) |
| 7 | 1724 return NULL; |
| 1725 *flagp |= flags & (HASWIDTH | HASNL | HASLOOKBH); | |
| 1726 if (chain == NULL) /* First piece. */ | |
| 1727 *flagp |= flags & SPSTART; | |
| 1728 else | |
| 1729 regtail(chain, latest); | |
| 1730 chain = latest; | |
| 1731 if (first == NULL) | |
| 1732 first = latest; | |
| 1733 break; | |
| 1734 } | |
| 1735 } | |
| 1736 if (first == NULL) /* Loop ran zero times. */ | |
| 1737 first = regnode(NOTHING); | |
| 1738 return first; | |
| 1739 } | |
| 1740 | |
| 1741 /* | |
| 4444 | 1742 * Parse something followed by possible [*+=]. |
| 7 | 1743 * |
| 1744 * Note that the branching code sequences used for = and the general cases | |
| 1745 * of * and + are somewhat optimized: they use the same NOTHING node as | |
| 1746 * both the endmarker for their branch list and the body of the last branch. | |
| 1747 * It might seem that this node could be dispensed with entirely, but the | |
| 1748 * endmarker role is not redundant. | |
| 1749 */ | |
| 1750 static char_u * | |
|
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commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
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parents:
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diff
changeset
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1751 regpiece(int *flagp) |
| 7 | 1752 { |
| 1753 char_u *ret; | |
| 1754 int op; | |
| 1755 char_u *next; | |
| 1756 int flags; | |
| 1757 long minval; | |
| 1758 long maxval; | |
| 1759 | |
| 1760 ret = regatom(&flags); | |
| 1761 if (ret == NULL) | |
| 1762 return NULL; | |
| 1763 | |
| 1764 op = peekchr(); | |
| 1765 if (re_multi_type(op) == NOT_MULTI) | |
| 1766 { | |
| 1767 *flagp = flags; | |
| 1768 return ret; | |
| 1769 } | |
| 1770 /* default flags */ | |
| 1771 *flagp = (WORST | SPSTART | (flags & (HASNL | HASLOOKBH))); | |
| 1772 | |
| 1773 skipchr(); | |
| 1774 switch (op) | |
| 1775 { | |
| 1776 case Magic('*'): | |
| 1777 if (flags & SIMPLE) | |
| 1778 reginsert(STAR, ret); | |
| 1779 else | |
| 1780 { | |
| 1781 /* Emit x* as (x&|), where & means "self". */ | |
| 1782 reginsert(BRANCH, ret); /* Either x */ | |
| 1783 regoptail(ret, regnode(BACK)); /* and loop */ | |
| 1784 regoptail(ret, ret); /* back */ | |
| 1785 regtail(ret, regnode(BRANCH)); /* or */ | |
| 1786 regtail(ret, regnode(NOTHING)); /* null. */ | |
| 1787 } | |
| 1788 break; | |
| 1789 | |
| 1790 case Magic('+'): | |
| 1791 if (flags & SIMPLE) | |
| 1792 reginsert(PLUS, ret); | |
| 1793 else | |
| 1794 { | |
| 1795 /* Emit x+ as x(&|), where & means "self". */ | |
| 1796 next = regnode(BRANCH); /* Either */ | |
| 1797 regtail(ret, next); | |
| 233 | 1798 regtail(regnode(BACK), ret); /* loop back */ |
| 7 | 1799 regtail(next, regnode(BRANCH)); /* or */ |
| 1800 regtail(ret, regnode(NOTHING)); /* null. */ | |
| 1801 } | |
| 1802 *flagp = (WORST | HASWIDTH | (flags & (HASNL | HASLOOKBH))); | |
| 1803 break; | |
| 1804 | |
| 1805 case Magic('@'): | |
| 1806 { | |
| 1807 int lop = END; | |
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1808 int nr; |
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1809 |
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1810 nr = getdecchrs(); |
| 7 | 1811 switch (no_Magic(getchr())) |
| 1812 { | |
| 1813 case '=': lop = MATCH; break; /* \@= */ | |
| 1814 case '!': lop = NOMATCH; break; /* \@! */ | |
| 1815 case '>': lop = SUBPAT; break; /* \@> */ | |
| 1816 case '<': switch (no_Magic(getchr())) | |
| 1817 { | |
| 1818 case '=': lop = BEHIND; break; /* \@<= */ | |
| 1819 case '!': lop = NOBEHIND; break; /* \@<! */ | |
| 1820 } | |
| 1821 } | |
| 1822 if (lop == END) | |
| 4444 | 1823 EMSG2_RET_NULL(_("E59: invalid character after %s@"), |
| 7 | 1824 reg_magic == MAGIC_ALL); |
| 1825 /* Look behind must match with behind_pos. */ | |
| 1826 if (lop == BEHIND || lop == NOBEHIND) | |
| 1827 { | |
| 1828 regtail(ret, regnode(BHPOS)); | |
| 1829 *flagp |= HASLOOKBH; | |
| 1830 } | |
| 1831 regtail(ret, regnode(END)); /* operand ends */ | |
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1832 if (lop == BEHIND || lop == NOBEHIND) |
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1833 { |
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1834 if (nr < 0) |
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1835 nr = 0; /* no limit is same as zero limit */ |
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1836 reginsert_nr(lop, nr, ret); |
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1837 } |
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1838 else |
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1839 reginsert(lop, ret); |
| 7 | 1840 break; |
| 1841 } | |
| 1842 | |
| 1843 case Magic('?'): | |
| 1844 case Magic('='): | |
| 1845 /* Emit x= as (x|) */ | |
| 1846 reginsert(BRANCH, ret); /* Either x */ | |
| 1847 regtail(ret, regnode(BRANCH)); /* or */ | |
| 1848 next = regnode(NOTHING); /* null. */ | |
| 1849 regtail(ret, next); | |
| 1850 regoptail(ret, next); | |
| 1851 break; | |
| 1852 | |
| 1853 case Magic('{'): | |
| 1854 if (!read_limits(&minval, &maxval)) | |
| 1855 return NULL; | |
| 1856 if (flags & SIMPLE) | |
| 1857 { | |
| 1858 reginsert(BRACE_SIMPLE, ret); | |
| 1859 reginsert_limits(BRACE_LIMITS, minval, maxval, ret); | |
| 1860 } | |
| 1861 else | |
| 1862 { | |
| 1863 if (num_complex_braces >= 10) | |
| 4444 | 1864 EMSG2_RET_NULL(_("E60: Too many complex %s{...}s"), |
| 7 | 1865 reg_magic == MAGIC_ALL); |
| 1866 reginsert(BRACE_COMPLEX + num_complex_braces, ret); | |
| 1867 regoptail(ret, regnode(BACK)); | |
| 1868 regoptail(ret, ret); | |
| 1869 reginsert_limits(BRACE_LIMITS, minval, maxval, ret); | |
| 1870 ++num_complex_braces; | |
| 1871 } | |
| 1872 if (minval > 0 && maxval > 0) | |
| 1873 *flagp = (HASWIDTH | (flags & (HASNL | HASLOOKBH))); | |
| 1874 break; | |
| 1875 } | |
| 1876 if (re_multi_type(peekchr()) != NOT_MULTI) | |
| 1877 { | |
| 1878 /* Can't have a multi follow a multi. */ | |
| 1879 if (peekchr() == Magic('*')) | |
| 1880 sprintf((char *)IObuff, _("E61: Nested %s*"), | |
| 1881 reg_magic >= MAGIC_ON ? "" : "\\"); | |
| 1882 else | |
| 1883 sprintf((char *)IObuff, _("E62: Nested %s%c"), | |
| 1884 reg_magic == MAGIC_ALL ? "" : "\\", no_Magic(peekchr())); | |
| 1885 EMSG_RET_NULL(IObuff); | |
| 1886 } | |
| 1887 | |
| 1888 return ret; | |
| 1889 } | |
| 1890 | |
| 4444 | 1891 /* When making changes to classchars also change nfa_classcodes. */ |
| 1892 static char_u *classchars = (char_u *)".iIkKfFpPsSdDxXoOwWhHaAlLuU"; | |
| 1893 static int classcodes[] = { | |
| 1894 ANY, IDENT, SIDENT, KWORD, SKWORD, | |
| 1895 FNAME, SFNAME, PRINT, SPRINT, | |
| 1896 WHITE, NWHITE, DIGIT, NDIGIT, | |
| 1897 HEX, NHEX, OCTAL, NOCTAL, | |
| 1898 WORD, NWORD, HEAD, NHEAD, | |
| 1899 ALPHA, NALPHA, LOWER, NLOWER, | |
| 1900 UPPER, NUPPER | |
| 1901 }; | |
| 1902 | |
| 7 | 1903 /* |
| 4444 | 1904 * Parse the lowest level. |
| 7 | 1905 * |
| 1906 * Optimization: gobbles an entire sequence of ordinary characters so that | |
| 1907 * it can turn them into a single node, which is smaller to store and | |
| 1908 * faster to run. Don't do this when one_exactly is set. | |
| 1909 */ | |
| 1910 static char_u * | |
|
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parents:
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diff
changeset
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1911 regatom(int *flagp) |
| 7 | 1912 { |
| 1913 char_u *ret; | |
| 1914 int flags; | |
| 1915 int c; | |
| 1916 char_u *p; | |
| 1917 int extra = 0; | |
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diff
changeset
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1918 int save_prev_at_start = prev_at_start; |
| 7 | 1919 |
| 1920 *flagp = WORST; /* Tentatively. */ | |
| 1921 | |
| 1922 c = getchr(); | |
| 1923 switch (c) | |
| 1924 { | |
| 1925 case Magic('^'): | |
| 1926 ret = regnode(BOL); | |
| 1927 break; | |
| 1928 | |
| 1929 case Magic('$'): | |
| 1930 ret = regnode(EOL); | |
| 1931 #if defined(FEAT_SYN_HL) || defined(PROTO) | |
| 1932 had_eol = TRUE; | |
| 1933 #endif | |
| 1934 break; | |
| 1935 | |
| 1936 case Magic('<'): | |
| 1937 ret = regnode(BOW); | |
| 1938 break; | |
| 1939 | |
| 1940 case Magic('>'): | |
| 1941 ret = regnode(EOW); | |
| 1942 break; | |
| 1943 | |
| 1944 case Magic('_'): | |
| 1945 c = no_Magic(getchr()); | |
| 1946 if (c == '^') /* "\_^" is start-of-line */ | |
| 1947 { | |
| 1948 ret = regnode(BOL); | |
| 1949 break; | |
| 1950 } | |
| 1951 if (c == '$') /* "\_$" is end-of-line */ | |
| 1952 { | |
| 1953 ret = regnode(EOL); | |
| 1954 #if defined(FEAT_SYN_HL) || defined(PROTO) | |
| 1955 had_eol = TRUE; | |
| 1956 #endif | |
| 1957 break; | |
| 1958 } | |
| 1959 | |
| 1960 extra = ADD_NL; | |
| 1961 *flagp |= HASNL; | |
| 1962 | |
| 1963 /* "\_[" is character range plus newline */ | |
| 1964 if (c == '[') | |
| 1965 goto collection; | |
| 1966 | |
| 1967 /* "\_x" is character class plus newline */ | |
| 1968 /*FALLTHROUGH*/ | |
| 1969 | |
| 1970 /* | |
| 1971 * Character classes. | |
| 1972 */ | |
| 1973 case Magic('.'): | |
| 1974 case Magic('i'): | |
| 1975 case Magic('I'): | |
| 1976 case Magic('k'): | |
| 1977 case Magic('K'): | |
| 1978 case Magic('f'): | |
| 1979 case Magic('F'): | |
| 1980 case Magic('p'): | |
| 1981 case Magic('P'): | |
| 1982 case Magic('s'): | |
| 1983 case Magic('S'): | |
| 1984 case Magic('d'): | |
| 1985 case Magic('D'): | |
| 1986 case Magic('x'): | |
| 1987 case Magic('X'): | |
| 1988 case Magic('o'): | |
| 1989 case Magic('O'): | |
| 1990 case Magic('w'): | |
| 1991 case Magic('W'): | |
| 1992 case Magic('h'): | |
| 1993 case Magic('H'): | |
| 1994 case Magic('a'): | |
| 1995 case Magic('A'): | |
| 1996 case Magic('l'): | |
| 1997 case Magic('L'): | |
| 1998 case Magic('u'): | |
| 1999 case Magic('U'): | |
| 2000 p = vim_strchr(classchars, no_Magic(c)); | |
| 2001 if (p == NULL) | |
| 2002 EMSG_RET_NULL(_("E63: invalid use of \\_")); | |
| 714 | 2003 #ifdef FEAT_MBYTE |
| 2004 /* When '.' is followed by a composing char ignore the dot, so that | |
| 2005 * the composing char is matched here. */ | |
| 2006 if (enc_utf8 && c == Magic('.') && utf_iscomposing(peekchr())) | |
| 2007 { | |
| 2008 c = getchr(); | |
| 2009 goto do_multibyte; | |
| 2010 } | |
| 2011 #endif | |
| 7 | 2012 ret = regnode(classcodes[p - classchars] + extra); |
| 2013 *flagp |= HASWIDTH | SIMPLE; | |
| 2014 break; | |
| 2015 | |
| 2016 case Magic('n'): | |
| 2017 if (reg_string) | |
| 2018 { | |
| 2019 /* In a string "\n" matches a newline character. */ | |
| 2020 ret = regnode(EXACTLY); | |
| 2021 regc(NL); | |
| 2022 regc(NUL); | |
| 2023 *flagp |= HASWIDTH | SIMPLE; | |
| 2024 } | |
| 2025 else | |
| 2026 { | |
| 2027 /* In buffer text "\n" matches the end of a line. */ | |
| 2028 ret = regnode(NEWL); | |
| 2029 *flagp |= HASWIDTH | HASNL; | |
| 2030 } | |
| 2031 break; | |
| 2032 | |
| 2033 case Magic('('): | |
| 2034 if (one_exactly) | |
| 2035 EMSG_ONE_RET_NULL; | |
| 2036 ret = reg(REG_PAREN, &flags); | |
| 2037 if (ret == NULL) | |
| 2038 return NULL; | |
| 2039 *flagp |= flags & (HASWIDTH | SPSTART | HASNL | HASLOOKBH); | |
| 2040 break; | |
| 2041 | |
| 2042 case NUL: | |
| 2043 case Magic('|'): | |
| 2044 case Magic('&'): | |
| 2045 case Magic(')'): | |
| 1468 | 2046 if (one_exactly) |
| 2047 EMSG_ONE_RET_NULL; | |
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changeset
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2048 IEMSG_RET_NULL(_(e_internal)); /* Supposed to be caught earlier. */ |
| 7 | 2049 /* NOTREACHED */ |
| 2050 | |
| 2051 case Magic('='): | |
| 2052 case Magic('?'): | |
| 2053 case Magic('+'): | |
| 2054 case Magic('@'): | |
| 2055 case Magic('{'): | |
| 2056 case Magic('*'): | |
| 2057 c = no_Magic(c); | |
| 2058 sprintf((char *)IObuff, _("E64: %s%c follows nothing"), | |
| 2059 (c == '*' ? reg_magic >= MAGIC_ON : reg_magic == MAGIC_ALL) | |
| 2060 ? "" : "\\", c); | |
| 2061 EMSG_RET_NULL(IObuff); | |
| 2062 /* NOTREACHED */ | |
| 2063 | |
| 2064 case Magic('~'): /* previous substitute pattern */ | |
| 359 | 2065 if (reg_prev_sub != NULL) |
| 7 | 2066 { |
| 2067 char_u *lp; | |
| 2068 | |
| 2069 ret = regnode(EXACTLY); | |
| 2070 lp = reg_prev_sub; | |
| 2071 while (*lp != NUL) | |
| 2072 regc(*lp++); | |
| 2073 regc(NUL); | |
| 2074 if (*reg_prev_sub != NUL) | |
| 2075 { | |
| 2076 *flagp |= HASWIDTH; | |
| 2077 if ((lp - reg_prev_sub) == 1) | |
| 2078 *flagp |= SIMPLE; | |
| 2079 } | |
| 2080 } | |
| 2081 else | |
| 2082 EMSG_RET_NULL(_(e_nopresub)); | |
| 2083 break; | |
| 2084 | |
| 2085 case Magic('1'): | |
| 2086 case Magic('2'): | |
| 2087 case Magic('3'): | |
| 2088 case Magic('4'): | |
| 2089 case Magic('5'): | |
| 2090 case Magic('6'): | |
| 2091 case Magic('7'): | |
| 2092 case Magic('8'): | |
| 2093 case Magic('9'): | |
| 2094 { | |
| 2095 int refnum; | |
| 2096 | |
| 2097 refnum = c - Magic('0'); | |
| 2098 /* | |
| 2099 * Check if the back reference is legal. We must have seen the | |
| 2100 * close brace. | |
| 2101 * TODO: Should also check that we don't refer to something | |
| 2102 * that is repeated (+*=): what instance of the repetition | |
| 2103 * should we match? | |
| 2104 */ | |
| 2105 if (!had_endbrace[refnum]) | |
| 2106 { | |
| 2107 /* Trick: check if "@<=" or "@<!" follows, in which case | |
| 2108 * the \1 can appear before the referenced match. */ | |
| 2109 for (p = regparse; *p != NUL; ++p) | |
| 2110 if (p[0] == '@' && p[1] == '<' | |
| 2111 && (p[2] == '!' || p[2] == '=')) | |
| 2112 break; | |
| 2113 if (*p == NUL) | |
| 2114 EMSG_RET_NULL(_("E65: Illegal back reference")); | |
| 2115 } | |
| 2116 ret = regnode(BACKREF + refnum); | |
| 2117 } | |
| 2118 break; | |
| 2119 | |
| 2120 case Magic('z'): | |
| 2121 { | |
| 2122 c = no_Magic(getchr()); | |
| 2123 switch (c) | |
| 2124 { | |
| 741 | 2125 #ifdef FEAT_SYN_HL |
| 7 | 2126 case '(': if (reg_do_extmatch != REX_SET) |
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2127 EMSG_RET_NULL(_(e_z_not_allowed)); |
| 7 | 2128 if (one_exactly) |
| 2129 EMSG_ONE_RET_NULL; | |
| 2130 ret = reg(REG_ZPAREN, &flags); | |
| 2131 if (ret == NULL) | |
| 2132 return NULL; | |
| 2133 *flagp |= flags & (HASWIDTH|SPSTART|HASNL|HASLOOKBH); | |
| 2134 re_has_z = REX_SET; | |
| 2135 break; | |
| 2136 | |
| 2137 case '1': | |
| 2138 case '2': | |
| 2139 case '3': | |
| 2140 case '4': | |
| 2141 case '5': | |
| 2142 case '6': | |
| 2143 case '7': | |
| 2144 case '8': | |
| 2145 case '9': if (reg_do_extmatch != REX_USE) | |
|
4688
371cc0c44097
updated for version 7.3.1091
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2146 EMSG_RET_NULL(_(e_z1_not_allowed)); |
| 7 | 2147 ret = regnode(ZREF + c - '0'); |
| 2148 re_has_z = REX_USE; | |
| 2149 break; | |
| 741 | 2150 #endif |
| 7 | 2151 |
| 2152 case 's': ret = regnode(MOPEN + 0); | |
| 6203 | 2153 if (re_mult_next("\\zs") == FAIL) |
| 2154 return NULL; | |
| 7 | 2155 break; |
| 2156 | |
| 2157 case 'e': ret = regnode(MCLOSE + 0); | |
| 6203 | 2158 if (re_mult_next("\\ze") == FAIL) |
| 2159 return NULL; | |
| 7 | 2160 break; |
| 2161 | |
| 2162 default: EMSG_RET_NULL(_("E68: Invalid character after \\z")); | |
| 2163 } | |
| 2164 } | |
| 2165 break; | |
| 2166 | |
| 2167 case Magic('%'): | |
| 2168 { | |
| 2169 c = no_Magic(getchr()); | |
| 2170 switch (c) | |
| 2171 { | |
| 2172 /* () without a back reference */ | |
| 2173 case '(': | |
| 2174 if (one_exactly) | |
| 2175 EMSG_ONE_RET_NULL; | |
| 2176 ret = reg(REG_NPAREN, &flags); | |
| 2177 if (ret == NULL) | |
| 2178 return NULL; | |
| 2179 *flagp |= flags & (HASWIDTH | SPSTART | HASNL | HASLOOKBH); | |
| 2180 break; | |
| 2181 | |
| 2182 /* Catch \%^ and \%$ regardless of where they appear in the | |
| 2183 * pattern -- regardless of whether or not it makes sense. */ | |
| 2184 case '^': | |
| 2185 ret = regnode(RE_BOF); | |
| 2186 break; | |
| 2187 | |
| 2188 case '$': | |
| 2189 ret = regnode(RE_EOF); | |
| 2190 break; | |
| 2191 | |
| 2192 case '#': | |
| 2193 ret = regnode(CURSOR); | |
| 2194 break; | |
| 2195 | |
| 639 | 2196 case 'V': |
| 2197 ret = regnode(RE_VISUAL); | |
| 2198 break; | |
| 2199 | |
| 5901 | 2200 case 'C': |
| 2201 ret = regnode(RE_COMPOSING); | |
| 2202 break; | |
| 2203 | |
| 7 | 2204 /* \%[abc]: Emit as a list of branches, all ending at the last |
| 2205 * branch which matches nothing. */ | |
| 2206 case '[': | |
| 2207 if (one_exactly) /* doesn't nest */ | |
| 2208 EMSG_ONE_RET_NULL; | |
| 2209 { | |
| 2210 char_u *lastbranch; | |
| 2211 char_u *lastnode = NULL; | |
| 2212 char_u *br; | |
| 2213 | |
| 2214 ret = NULL; | |
| 2215 while ((c = getchr()) != ']') | |
| 2216 { | |
| 2217 if (c == NUL) | |
|
4744
a62695305e03
updated for version 7.3.1119
Bram Moolenaar <bram@vim.org>
parents:
4732
diff
changeset
|
2218 EMSG2_RET_NULL(_(e_missing_sb), |
| 7 | 2219 reg_magic == MAGIC_ALL); |
| 2220 br = regnode(BRANCH); | |
| 2221 if (ret == NULL) | |
| 2222 ret = br; | |
| 2223 else | |
| 2224 regtail(lastnode, br); | |
| 2225 | |
| 2226 ungetchr(); | |
| 2227 one_exactly = TRUE; | |
| 2228 lastnode = regatom(flagp); | |
| 2229 one_exactly = FALSE; | |
| 2230 if (lastnode == NULL) | |
| 2231 return NULL; | |
| 2232 } | |
| 2233 if (ret == NULL) | |
|
4760
532a9855bd30
updated for version 7.3.1127
Bram Moolenaar <bram@vim.org>
parents:
4746
diff
changeset
|
2234 EMSG2_RET_NULL(_(e_empty_sb), |
| 7 | 2235 reg_magic == MAGIC_ALL); |
| 2236 lastbranch = regnode(BRANCH); | |
| 2237 br = regnode(NOTHING); | |
| 2238 if (ret != JUST_CALC_SIZE) | |
| 2239 { | |
| 2240 regtail(lastnode, br); | |
| 2241 regtail(lastbranch, br); | |
| 2242 /* connect all branches to the NOTHING | |
| 2243 * branch at the end */ | |
| 2244 for (br = ret; br != lastnode; ) | |
| 2245 { | |
| 2246 if (OP(br) == BRANCH) | |
| 2247 { | |
| 2248 regtail(br, lastbranch); | |
| 2249 br = OPERAND(br); | |
| 2250 } | |
| 2251 else | |
| 2252 br = regnext(br); | |
| 2253 } | |
| 2254 } | |
| 1701 | 2255 *flagp &= ~(HASWIDTH | SIMPLE); |
| 7 | 2256 break; |
| 2257 } | |
| 2258 | |
| 24 | 2259 case 'd': /* %d123 decimal */ |
| 2260 case 'o': /* %o123 octal */ | |
| 2261 case 'x': /* %xab hex 2 */ | |
| 2262 case 'u': /* %uabcd hex 4 */ | |
| 2263 case 'U': /* %U1234abcd hex 8 */ | |
| 2264 { | |
| 2265 int i; | |
| 2266 | |
| 2267 switch (c) | |
| 2268 { | |
| 2269 case 'd': i = getdecchrs(); break; | |
| 2270 case 'o': i = getoctchrs(); break; | |
| 2271 case 'x': i = gethexchrs(2); break; | |
| 2272 case 'u': i = gethexchrs(4); break; | |
| 2273 case 'U': i = gethexchrs(8); break; | |
| 2274 default: i = -1; break; | |
| 2275 } | |
| 2276 | |
| 2277 if (i < 0) | |
| 4444 | 2278 EMSG2_RET_NULL( |
| 24 | 2279 _("E678: Invalid character after %s%%[dxouU]"), |
| 2280 reg_magic == MAGIC_ALL); | |
| 714 | 2281 #ifdef FEAT_MBYTE |
| 2282 if (use_multibytecode(i)) | |
| 2283 ret = regnode(MULTIBYTECODE); | |
| 2284 else | |
| 2285 #endif | |
| 2286 ret = regnode(EXACTLY); | |
| 24 | 2287 if (i == 0) |
| 2288 regc(0x0a); | |
| 2289 else | |
| 2290 #ifdef FEAT_MBYTE | |
| 2291 regmbc(i); | |
| 2292 #else | |
| 2293 regc(i); | |
| 2294 #endif | |
| 2295 regc(NUL); | |
| 2296 *flagp |= HASWIDTH; | |
| 2297 break; | |
| 2298 } | |
| 2299 | |
| 7 | 2300 default: |
| 639 | 2301 if (VIM_ISDIGIT(c) || c == '<' || c == '>' |
| 2302 || c == '\'') | |
| 7 | 2303 { |
| 2304 long_u n = 0; | |
| 2305 int cmp; | |
| 2306 | |
| 2307 cmp = c; | |
| 2308 if (cmp == '<' || cmp == '>') | |
| 2309 c = getchr(); | |
| 2310 while (VIM_ISDIGIT(c)) | |
| 2311 { | |
| 2312 n = n * 10 + (c - '0'); | |
| 2313 c = getchr(); | |
| 2314 } | |
| 639 | 2315 if (c == '\'' && n == 0) |
| 2316 { | |
| 2317 /* "\%'m", "\%<'m" and "\%>'m": Mark */ | |
| 2318 c = getchr(); | |
| 2319 ret = regnode(RE_MARK); | |
| 2320 if (ret == JUST_CALC_SIZE) | |
| 2321 regsize += 2; | |
| 2322 else | |
| 2323 { | |
| 2324 *regcode++ = c; | |
| 2325 *regcode++ = cmp; | |
| 2326 } | |
| 2327 break; | |
| 2328 } | |
| 2329 else if (c == 'l' || c == 'c' || c == 'v') | |
| 7 | 2330 { |
| 2331 if (c == 'l') | |
|
8021
b6b4f354df23
commit https://github.com/vim/vim/commit/7c29f387819b5817b003d2ba73e2b5cf3cb3d0dd
Christian Brabandt <cb@256bit.org>
parents:
7833
diff
changeset
|
2332 { |
| 7 | 2333 ret = regnode(RE_LNUM); |
|
8021
b6b4f354df23
commit https://github.com/vim/vim/commit/7c29f387819b5817b003d2ba73e2b5cf3cb3d0dd
Christian Brabandt <cb@256bit.org>
parents:
7833
diff
changeset
|
2334 if (save_prev_at_start) |
|
b6b4f354df23
commit https://github.com/vim/vim/commit/7c29f387819b5817b003d2ba73e2b5cf3cb3d0dd
Christian Brabandt <cb@256bit.org>
parents:
7833
diff
changeset
|
2335 at_start = TRUE; |
|
b6b4f354df23
commit https://github.com/vim/vim/commit/7c29f387819b5817b003d2ba73e2b5cf3cb3d0dd
Christian Brabandt <cb@256bit.org>
parents:
7833
diff
changeset
|
2336 } |
| 7 | 2337 else if (c == 'c') |
| 2338 ret = regnode(RE_COL); | |
| 2339 else | |
| 2340 ret = regnode(RE_VCOL); | |
| 2341 if (ret == JUST_CALC_SIZE) | |
| 2342 regsize += 5; | |
| 2343 else | |
| 2344 { | |
| 2345 /* put the number and the optional | |
| 2346 * comparator after the opcode */ | |
| 2347 regcode = re_put_long(regcode, n); | |
| 2348 *regcode++ = cmp; | |
| 2349 } | |
| 2350 break; | |
| 2351 } | |
| 2352 } | |
| 2353 | |
| 4444 | 2354 EMSG2_RET_NULL(_("E71: Invalid character after %s%%"), |
| 7 | 2355 reg_magic == MAGIC_ALL); |
| 2356 } | |
| 2357 } | |
| 2358 break; | |
| 2359 | |
| 2360 case Magic('['): | |
| 2361 collection: | |
| 2362 { | |
| 2363 char_u *lp; | |
| 2364 | |
| 2365 /* | |
| 2366 * If there is no matching ']', we assume the '[' is a normal | |
| 2367 * character. This makes 'incsearch' and ":help [" work. | |
| 2368 */ | |
| 2369 lp = skip_anyof(regparse); | |
| 2370 if (*lp == ']') /* there is a matching ']' */ | |
| 2371 { | |
| 2372 int startc = -1; /* > 0 when next '-' is a range */ | |
| 2373 int endc; | |
| 2374 | |
| 2375 /* | |
| 2376 * In a character class, different parsing rules apply. | |
| 2377 * Not even \ is special anymore, nothing is. | |
| 2378 */ | |
| 2379 if (*regparse == '^') /* Complement of range. */ | |
| 2380 { | |
| 2381 ret = regnode(ANYBUT + extra); | |
| 2382 regparse++; | |
| 2383 } | |
| 2384 else | |
| 2385 ret = regnode(ANYOF + extra); | |
| 2386 | |
| 2387 /* At the start ']' and '-' mean the literal character. */ | |
| 2388 if (*regparse == ']' || *regparse == '-') | |
| 167 | 2389 { |
| 2390 startc = *regparse; | |
| 7 | 2391 regc(*regparse++); |
| 167 | 2392 } |
| 7 | 2393 |
| 2394 while (*regparse != NUL && *regparse != ']') | |
| 2395 { | |
| 2396 if (*regparse == '-') | |
| 2397 { | |
| 2398 ++regparse; | |
| 2399 /* The '-' is not used for a range at the end and | |
| 2400 * after or before a '\n'. */ | |
| 2401 if (*regparse == ']' || *regparse == NUL | |
| 2402 || startc == -1 | |
| 2403 || (regparse[0] == '\\' && regparse[1] == 'n')) | |
| 2404 { | |
| 2405 regc('-'); | |
| 2406 startc = '-'; /* [--x] is a range */ | |
| 2407 } | |
| 2408 else | |
| 2409 { | |
| 167 | 2410 /* Also accept "a-[.z.]" */ |
| 2411 endc = 0; | |
| 2412 if (*regparse == '[') | |
| 2413 endc = get_coll_element(®parse); | |
| 2414 if (endc == 0) | |
| 2415 { | |
| 7 | 2416 #ifdef FEAT_MBYTE |
| 167 | 2417 if (has_mbyte) |
| 2418 endc = mb_ptr2char_adv(®parse); | |
| 2419 else | |
| 7 | 2420 #endif |
| 167 | 2421 endc = *regparse++; |
| 2422 } | |
| 24 | 2423 |
| 2424 /* Handle \o40, \x20 and \u20AC style sequences */ | |
|
4744
a62695305e03
updated for version 7.3.1119
Bram Moolenaar <bram@vim.org>
parents:
4732
diff
changeset
|
2425 if (endc == '\\' && !reg_cpo_lit && !reg_cpo_bsl) |
| 24 | 2426 endc = coll_get_char(); |
| 2427 | |
| 7 | 2428 if (startc > endc) |
| 2429 EMSG_RET_NULL(_(e_invrange)); | |
| 2430 #ifdef FEAT_MBYTE | |
| 2431 if (has_mbyte && ((*mb_char2len)(startc) > 1 | |
| 2432 || (*mb_char2len)(endc) > 1)) | |
| 2433 { | |
| 2434 /* Limit to a range of 256 chars */ | |
| 2435 if (endc > startc + 256) | |
| 2436 EMSG_RET_NULL(_(e_invrange)); | |
| 2437 while (++startc <= endc) | |
| 2438 regmbc(startc); | |
| 2439 } | |
| 2440 else | |
| 2441 #endif | |
| 2442 { | |
| 2443 #ifdef EBCDIC | |
| 2444 int alpha_only = FALSE; | |
| 2445 | |
| 2446 /* for alphabetical range skip the gaps | |
| 2447 * 'i'-'j', 'r'-'s', 'I'-'J' and 'R'-'S'. */ | |
| 2448 if (isalpha(startc) && isalpha(endc)) | |
| 2449 alpha_only = TRUE; | |
| 2450 #endif | |
| 2451 while (++startc <= endc) | |
| 2452 #ifdef EBCDIC | |
| 2453 if (!alpha_only || isalpha(startc)) | |
| 2454 #endif | |
| 2455 regc(startc); | |
| 2456 } | |
| 2457 startc = -1; | |
| 2458 } | |
| 2459 } | |
| 2460 /* | |
| 2461 * Only "\]", "\^", "\]" and "\\" are special in Vi. Vim | |
| 2462 * accepts "\t", "\e", etc., but only when the 'l' flag in | |
| 2463 * 'cpoptions' is not included. | |
| 167 | 2464 * Posix doesn't recognize backslash at all. |
| 7 | 2465 */ |
| 2466 else if (*regparse == '\\' | |
|
4744
a62695305e03
updated for version 7.3.1119
Bram Moolenaar <bram@vim.org>
parents:
4732
diff
changeset
|
2467 && !reg_cpo_bsl |
| 7 | 2468 && (vim_strchr(REGEXP_INRANGE, regparse[1]) != NULL |
|
4744
a62695305e03
updated for version 7.3.1119
Bram Moolenaar <bram@vim.org>
parents:
4732
diff
changeset
|
2469 || (!reg_cpo_lit |
| 7 | 2470 && vim_strchr(REGEXP_ABBR, |
| 2471 regparse[1]) != NULL))) | |
| 2472 { | |
| 2473 regparse++; | |
| 2474 if (*regparse == 'n') | |
| 2475 { | |
| 2476 /* '\n' in range: also match NL */ | |
| 2477 if (ret != JUST_CALC_SIZE) | |
| 2478 { | |
| 4084 | 2479 /* Using \n inside [^] does not change what |
| 2480 * matches. "[^\n]" is the same as ".". */ | |
| 2481 if (*ret == ANYOF) | |
| 2482 { | |
| 7 | 2483 *ret = ANYOF + ADD_NL; |
| 4084 | 2484 *flagp |= HASNL; |
| 2485 } | |
| 7 | 2486 /* else: must have had a \n already */ |
| 2487 } | |
| 2488 regparse++; | |
| 2489 startc = -1; | |
| 2490 } | |
| 24 | 2491 else if (*regparse == 'd' |
| 2492 || *regparse == 'o' | |
| 2493 || *regparse == 'x' | |
| 2494 || *regparse == 'u' | |
| 2495 || *regparse == 'U') | |
| 2496 { | |
| 2497 startc = coll_get_char(); | |
| 2498 if (startc == 0) | |
| 2499 regc(0x0a); | |
| 2500 else | |
| 2501 #ifdef FEAT_MBYTE | |
| 2502 regmbc(startc); | |
| 2503 #else | |
| 2504 regc(startc); | |
| 2505 #endif | |
| 2506 } | |
| 7 | 2507 else |
| 2508 { | |
| 2509 startc = backslash_trans(*regparse++); | |
| 2510 regc(startc); | |
| 2511 } | |
| 2512 } | |
| 2513 else if (*regparse == '[') | |
| 2514 { | |
| 2515 int c_class; | |
| 2516 int cu; | |
| 2517 | |
| 167 | 2518 c_class = get_char_class(®parse); |
| 7 | 2519 startc = -1; |
| 2520 /* Characters assumed to be 8 bits! */ | |
| 2521 switch (c_class) | |
| 2522 { | |
| 2523 case CLASS_NONE: | |
| 167 | 2524 c_class = get_equi_class(®parse); |
| 2525 if (c_class != 0) | |
| 2526 { | |
| 2527 /* produce equivalence class */ | |
| 2528 reg_equi_class(c_class); | |
| 2529 } | |
| 2530 else if ((c_class = | |
| 2531 get_coll_element(®parse)) != 0) | |
| 2532 { | |
| 2533 /* produce a collating element */ | |
| 2534 regmbc(c_class); | |
| 2535 } | |
| 2536 else | |
| 2537 { | |
| 2538 /* literal '[', allow [[-x] as a range */ | |
| 2539 startc = *regparse++; | |
| 2540 regc(startc); | |
| 2541 } | |
| 7 | 2542 break; |
| 2543 case CLASS_ALNUM: | |
|
9015
42b228c8701b
commit https://github.com/vim/vim/commit/e8aee7dcf9b12becff86e8ce1783a86801c5f9f6
Christian Brabandt <cb@256bit.org>
parents:
8995
diff
changeset
|
2544 for (cu = 1; cu < 128; cu++) |
| 7 | 2545 if (isalnum(cu)) |
|
8995
3cf6704d6efc
commit https://github.com/vim/vim/commit/af98a49dd0ef1661b4998f118151fddbf6e4df75
Christian Brabandt <cb@256bit.org>
parents:
8863
diff
changeset
|
2546 regmbc(cu); |
| 7 | 2547 break; |
| 2548 case CLASS_ALPHA: | |
|
9015
42b228c8701b
commit https://github.com/vim/vim/commit/e8aee7dcf9b12becff86e8ce1783a86801c5f9f6
Christian Brabandt <cb@256bit.org>
parents:
8995
diff
changeset
|
2549 for (cu = 1; cu < 128; cu++) |
| 7 | 2550 if (isalpha(cu)) |
|
8995
3cf6704d6efc
commit https://github.com/vim/vim/commit/af98a49dd0ef1661b4998f118151fddbf6e4df75
Christian Brabandt <cb@256bit.org>
parents:
8863
diff
changeset
|
2551 regmbc(cu); |
| 7 | 2552 break; |
| 2553 case CLASS_BLANK: | |
| 2554 regc(' '); | |
| 2555 regc('\t'); | |
| 2556 break; | |
| 2557 case CLASS_CNTRL: | |
| 2558 for (cu = 1; cu <= 255; cu++) | |
| 2559 if (iscntrl(cu)) | |
|
8995
3cf6704d6efc
commit https://github.com/vim/vim/commit/af98a49dd0ef1661b4998f118151fddbf6e4df75
Christian Brabandt <cb@256bit.org>
parents:
8863
diff
changeset
|
2560 regmbc(cu); |
| 7 | 2561 break; |
| 2562 case CLASS_DIGIT: | |
| 2563 for (cu = 1; cu <= 255; cu++) | |
| 2564 if (VIM_ISDIGIT(cu)) | |
|
8995
3cf6704d6efc
commit https://github.com/vim/vim/commit/af98a49dd0ef1661b4998f118151fddbf6e4df75
Christian Brabandt <cb@256bit.org>
parents:
8863
diff
changeset
|
2565 regmbc(cu); |
| 7 | 2566 break; |
| 2567 case CLASS_GRAPH: | |
| 2568 for (cu = 1; cu <= 255; cu++) | |
| 2569 if (isgraph(cu)) | |
|
8995
3cf6704d6efc
commit https://github.com/vim/vim/commit/af98a49dd0ef1661b4998f118151fddbf6e4df75
Christian Brabandt <cb@256bit.org>
parents:
8863
diff
changeset
|
2570 regmbc(cu); |
| 7 | 2571 break; |
| 2572 case CLASS_LOWER: | |
| 2573 for (cu = 1; cu <= 255; cu++) | |
|
9015
42b228c8701b
commit https://github.com/vim/vim/commit/e8aee7dcf9b12becff86e8ce1783a86801c5f9f6
Christian Brabandt <cb@256bit.org>
parents:
8995
diff
changeset
|
2574 if (MB_ISLOWER(cu) && cu != 170 |
|
42b228c8701b
commit https://github.com/vim/vim/commit/e8aee7dcf9b12becff86e8ce1783a86801c5f9f6
Christian Brabandt <cb@256bit.org>
parents:
8995
diff
changeset
|
2575 && cu != 186) |
|
8995
3cf6704d6efc
commit https://github.com/vim/vim/commit/af98a49dd0ef1661b4998f118151fddbf6e4df75
Christian Brabandt <cb@256bit.org>
parents:
8863
diff
changeset
|
2576 regmbc(cu); |
| 7 | 2577 break; |
| 2578 case CLASS_PRINT: | |
| 2579 for (cu = 1; cu <= 255; cu++) | |
| 2580 if (vim_isprintc(cu)) | |
|
8995
3cf6704d6efc
commit https://github.com/vim/vim/commit/af98a49dd0ef1661b4998f118151fddbf6e4df75
Christian Brabandt <cb@256bit.org>
parents:
8863
diff
changeset
|
2581 regmbc(cu); |
| 7 | 2582 break; |
| 2583 case CLASS_PUNCT: | |
|
9015
42b228c8701b
commit https://github.com/vim/vim/commit/e8aee7dcf9b12becff86e8ce1783a86801c5f9f6
Christian Brabandt <cb@256bit.org>
parents:
8995
diff
changeset
|
2584 for (cu = 1; cu < 128; cu++) |
| 7 | 2585 if (ispunct(cu)) |
|
8995
3cf6704d6efc
commit https://github.com/vim/vim/commit/af98a49dd0ef1661b4998f118151fddbf6e4df75
Christian Brabandt <cb@256bit.org>
parents:
8863
diff
changeset
|
2586 regmbc(cu); |
| 7 | 2587 break; |
| 2588 case CLASS_SPACE: | |
| 2589 for (cu = 9; cu <= 13; cu++) | |
| 2590 regc(cu); | |
| 2591 regc(' '); | |
| 2592 break; | |
| 2593 case CLASS_UPPER: | |
| 2594 for (cu = 1; cu <= 255; cu++) | |
| 1347 | 2595 if (MB_ISUPPER(cu)) |
|
8995
3cf6704d6efc
commit https://github.com/vim/vim/commit/af98a49dd0ef1661b4998f118151fddbf6e4df75
Christian Brabandt <cb@256bit.org>
parents:
8863
diff
changeset
|
2596 regmbc(cu); |
| 7 | 2597 break; |
| 2598 case CLASS_XDIGIT: | |
| 2599 for (cu = 1; cu <= 255; cu++) | |
| 2600 if (vim_isxdigit(cu)) | |
|
8995
3cf6704d6efc
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Christian Brabandt <cb@256bit.org>
parents:
8863
diff
changeset
|
2601 regmbc(cu); |
| 7 | 2602 break; |
| 2603 case CLASS_TAB: | |
| 2604 regc('\t'); | |
| 2605 break; | |
| 2606 case CLASS_RETURN: | |
| 2607 regc('\r'); | |
| 2608 break; | |
| 2609 case CLASS_BACKSPACE: | |
| 2610 regc('\b'); | |
| 2611 break; | |
| 2612 case CLASS_ESCAPE: | |
| 2613 regc('\033'); | |
| 2614 break; | |
| 2615 } | |
| 2616 } | |
| 2617 else | |
| 2618 { | |
| 2619 #ifdef FEAT_MBYTE | |
| 2620 if (has_mbyte) | |
| 2621 { | |
| 2622 int len; | |
| 2623 | |
| 2624 /* produce a multibyte character, including any | |
| 2625 * following composing characters */ | |
| 2626 startc = mb_ptr2char(regparse); | |
| 474 | 2627 len = (*mb_ptr2len)(regparse); |
| 7 | 2628 if (enc_utf8 && utf_char2len(startc) != len) |
| 2629 startc = -1; /* composing chars */ | |
| 2630 while (--len >= 0) | |
| 2631 regc(*regparse++); | |
| 2632 } | |
| 2633 else | |
| 2634 #endif | |
| 2635 { | |
| 2636 startc = *regparse++; | |
| 2637 regc(startc); | |
| 2638 } | |
| 2639 } | |
| 2640 } | |
| 2641 regc(NUL); | |
| 2642 prevchr_len = 1; /* last char was the ']' */ | |
| 2643 if (*regparse != ']') | |
| 2644 EMSG_RET_NULL(_(e_toomsbra)); /* Cannot happen? */ | |
| 2645 skipchr(); /* let's be friends with the lexer again */ | |
| 2646 *flagp |= HASWIDTH | SIMPLE; | |
| 2647 break; | |
| 2648 } | |
| 481 | 2649 else if (reg_strict) |
| 4444 | 2650 EMSG2_RET_NULL(_(e_missingbracket), reg_magic > MAGIC_OFF); |
| 7 | 2651 } |
| 2652 /* FALLTHROUGH */ | |
| 2653 | |
| 2654 default: | |
| 2655 { | |
| 2656 int len; | |
| 2657 | |
| 2658 #ifdef FEAT_MBYTE | |
| 2659 /* A multi-byte character is handled as a separate atom if it's | |
| 714 | 2660 * before a multi and when it's a composing char. */ |
| 2661 if (use_multibytecode(c)) | |
| 7 | 2662 { |
| 714 | 2663 do_multibyte: |
| 7 | 2664 ret = regnode(MULTIBYTECODE); |
| 2665 regmbc(c); | |
| 2666 *flagp |= HASWIDTH | SIMPLE; | |
| 2667 break; | |
| 2668 } | |
| 2669 #endif | |
| 2670 | |
| 2671 ret = regnode(EXACTLY); | |
| 2672 | |
| 2673 /* | |
| 2674 * Append characters as long as: | |
| 2675 * - there is no following multi, we then need the character in | |
| 2676 * front of it as a single character operand | |
| 2677 * - not running into a Magic character | |
| 2678 * - "one_exactly" is not set | |
| 2679 * But always emit at least one character. Might be a Multi, | |
| 2680 * e.g., a "[" without matching "]". | |
| 2681 */ | |
| 2682 for (len = 0; c != NUL && (len == 0 | |
| 2683 || (re_multi_type(peekchr()) == NOT_MULTI | |
| 2684 && !one_exactly | |
| 2685 && !is_Magic(c))); ++len) | |
| 2686 { | |
| 2687 c = no_Magic(c); | |
| 2688 #ifdef FEAT_MBYTE | |
| 2689 if (has_mbyte) | |
| 2690 { | |
| 2691 regmbc(c); | |
| 2692 if (enc_utf8) | |
| 2693 { | |
| 2694 int l; | |
| 2695 | |
| 714 | 2696 /* Need to get composing character too. */ |
| 7 | 2697 for (;;) |
| 2698 { | |
| 714 | 2699 l = utf_ptr2len(regparse); |
| 2700 if (!UTF_COMPOSINGLIKE(regparse, regparse + l)) | |
| 7 | 2701 break; |
| 714 | 2702 regmbc(utf_ptr2char(regparse)); |
| 2703 skipchr(); | |
| 7 | 2704 } |
| 2705 } | |
| 2706 } | |
| 2707 else | |
| 2708 #endif | |
| 2709 regc(c); | |
| 2710 c = getchr(); | |
| 2711 } | |
| 2712 ungetchr(); | |
| 2713 | |
| 2714 regc(NUL); | |
| 2715 *flagp |= HASWIDTH; | |
| 2716 if (len == 1) | |
| 2717 *flagp |= SIMPLE; | |
| 2718 } | |
| 2719 break; | |
| 2720 } | |
| 2721 | |
| 2722 return ret; | |
| 2723 } | |
| 2724 | |
| 714 | 2725 #ifdef FEAT_MBYTE |
| 2726 /* | |
| 2727 * Return TRUE if MULTIBYTECODE should be used instead of EXACTLY for | |
| 2728 * character "c". | |
| 2729 */ | |
| 2730 static int | |
|
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parents:
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diff
changeset
|
2731 use_multibytecode(int c) |
| 714 | 2732 { |
| 2733 return has_mbyte && (*mb_char2len)(c) > 1 | |
| 2734 && (re_multi_type(peekchr()) != NOT_MULTI | |
| 2735 || (enc_utf8 && utf_iscomposing(c))); | |
| 2736 } | |
| 2737 #endif | |
| 2738 | |
| 7 | 2739 /* |
| 4444 | 2740 * Emit a node. |
| 7 | 2741 * Return pointer to generated code. |
| 2742 */ | |
| 2743 static char_u * | |
|
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diff
changeset
|
2744 regnode(int op) |
| 7 | 2745 { |
| 2746 char_u *ret; | |
| 2747 | |
| 2748 ret = regcode; | |
| 2749 if (ret == JUST_CALC_SIZE) | |
| 2750 regsize += 3; | |
| 2751 else | |
| 2752 { | |
| 2753 *regcode++ = op; | |
| 2754 *regcode++ = NUL; /* Null "next" pointer. */ | |
| 2755 *regcode++ = NUL; | |
| 2756 } | |
| 2757 return ret; | |
| 2758 } | |
| 2759 | |
| 2760 /* | |
| 2761 * Emit (if appropriate) a byte of code | |
| 2762 */ | |
| 2763 static void | |
|
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parents:
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diff
changeset
|
2764 regc(int b) |
| 7 | 2765 { |
| 2766 if (regcode == JUST_CALC_SIZE) | |
| 2767 regsize++; | |
| 2768 else | |
| 2769 *regcode++ = b; | |
| 2770 } | |
| 2771 | |
| 2772 #ifdef FEAT_MBYTE | |
| 2773 /* | |
| 2774 * Emit (if appropriate) a multi-byte character of code | |
| 2775 */ | |
| 2776 static void | |
|
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diff
changeset
|
2777 regmbc(int c) |
| 7 | 2778 { |
| 2974 | 2779 if (!has_mbyte && c > 0xff) |
| 2780 return; | |
| 7 | 2781 if (regcode == JUST_CALC_SIZE) |
| 2782 regsize += (*mb_char2len)(c); | |
| 2783 else | |
| 2784 regcode += (*mb_char2bytes)(c, regcode); | |
| 2785 } | |
| 2786 #endif | |
| 2787 | |
| 2788 /* | |
| 4444 | 2789 * Insert an operator in front of already-emitted operand |
| 7 | 2790 * |
| 2791 * Means relocating the operand. | |
| 2792 */ | |
| 2793 static void | |
|
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diff
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|
2794 reginsert(int op, char_u *opnd) |
| 7 | 2795 { |
| 2796 char_u *src; | |
| 2797 char_u *dst; | |
| 2798 char_u *place; | |
| 2799 | |
| 2800 if (regcode == JUST_CALC_SIZE) | |
| 2801 { | |
| 2802 regsize += 3; | |
| 2803 return; | |
| 2804 } | |
| 2805 src = regcode; | |
| 2806 regcode += 3; | |
| 2807 dst = regcode; | |
| 2808 while (src > opnd) | |
| 2809 *--dst = *--src; | |
| 2810 | |
| 2811 place = opnd; /* Op node, where operand used to be. */ | |
| 2812 *place++ = op; | |
| 2813 *place++ = NUL; | |
| 2814 *place = NUL; | |
| 2815 } | |
| 2816 | |
| 2817 /* | |
| 4444 | 2818 * Insert an operator in front of already-emitted operand. |
|
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2819 * Add a number to the operator. |
|
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2820 */ |
|
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2821 static void |
|
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|
2822 reginsert_nr(int op, long val, char_u *opnd) |
|
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2823 { |
|
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2824 char_u *src; |
|
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2825 char_u *dst; |
|
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|
2826 char_u *place; |
|
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2827 |
|
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|
2828 if (regcode == JUST_CALC_SIZE) |
|
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|
2829 { |
|
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|
2830 regsize += 7; |
|
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|
2831 return; |
|
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|
2832 } |
|
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|
2833 src = regcode; |
|
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|
2834 regcode += 7; |
|
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|
2835 dst = regcode; |
|
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|
2836 while (src > opnd) |
|
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|
2837 *--dst = *--src; |
|
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2838 |
|
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|
2839 place = opnd; /* Op node, where operand used to be. */ |
|
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|
2840 *place++ = op; |
|
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|
2841 *place++ = NUL; |
|
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|
2842 *place++ = NUL; |
|
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|
2843 place = re_put_long(place, (long_u)val); |
|
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|
2844 } |
|
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|
2845 |
|
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|
2846 /* |
|
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|
2847 * Insert an operator in front of already-emitted operand. |
| 7 | 2848 * The operator has the given limit values as operands. Also set next pointer. |
| 2849 * | |
| 2850 * Means relocating the operand. | |
| 2851 */ | |
| 2852 static void | |
|
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diff
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|
2853 reginsert_limits( |
|
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diff
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|
2854 int op, |
|
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diff
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|
2855 long minval, |
|
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diff
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|
2856 long maxval, |
|
c079097365f3
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parents:
7807
diff
changeset
|
2857 char_u *opnd) |
| 7 | 2858 { |
| 2859 char_u *src; | |
| 2860 char_u *dst; | |
| 2861 char_u *place; | |
| 2862 | |
| 2863 if (regcode == JUST_CALC_SIZE) | |
| 2864 { | |
| 2865 regsize += 11; | |
| 2866 return; | |
| 2867 } | |
| 2868 src = regcode; | |
| 2869 regcode += 11; | |
| 2870 dst = regcode; | |
| 2871 while (src > opnd) | |
| 2872 *--dst = *--src; | |
| 2873 | |
| 2874 place = opnd; /* Op node, where operand used to be. */ | |
| 2875 *place++ = op; | |
| 2876 *place++ = NUL; | |
| 2877 *place++ = NUL; | |
| 2878 place = re_put_long(place, (long_u)minval); | |
| 2879 place = re_put_long(place, (long_u)maxval); | |
| 2880 regtail(opnd, place); | |
| 2881 } | |
| 2882 | |
| 2883 /* | |
| 2884 * Write a long as four bytes at "p" and return pointer to the next char. | |
| 2885 */ | |
| 2886 static char_u * | |
|
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diff
changeset
|
2887 re_put_long(char_u *p, long_u val) |
| 7 | 2888 { |
| 2889 *p++ = (char_u) ((val >> 24) & 0377); | |
| 2890 *p++ = (char_u) ((val >> 16) & 0377); | |
| 2891 *p++ = (char_u) ((val >> 8) & 0377); | |
| 2892 *p++ = (char_u) (val & 0377); | |
| 2893 return p; | |
| 2894 } | |
| 2895 | |
| 2896 /* | |
| 4444 | 2897 * Set the next-pointer at the end of a node chain. |
| 7 | 2898 */ |
| 2899 static void | |
|
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diff
changeset
|
2900 regtail(char_u *p, char_u *val) |
| 7 | 2901 { |
| 2902 char_u *scan; | |
| 2903 char_u *temp; | |
| 2904 int offset; | |
| 2905 | |
| 2906 if (p == JUST_CALC_SIZE) | |
| 2907 return; | |
| 2908 | |
| 2909 /* Find last node. */ | |
| 2910 scan = p; | |
| 2911 for (;;) | |
| 2912 { | |
| 2913 temp = regnext(scan); | |
| 2914 if (temp == NULL) | |
| 2915 break; | |
| 2916 scan = temp; | |
| 2917 } | |
| 2918 | |
| 233 | 2919 if (OP(scan) == BACK) |
| 7 | 2920 offset = (int)(scan - val); |
| 2921 else | |
| 2922 offset = (int)(val - scan); | |
| 2010 | 2923 /* When the offset uses more than 16 bits it can no longer fit in the two |
| 2974 | 2924 * bytes available. Use a global flag to avoid having to check return |
| 2010 | 2925 * values in too many places. */ |
| 2926 if (offset > 0xffff) | |
| 2927 reg_toolong = TRUE; | |
| 2928 else | |
| 2929 { | |
| 2930 *(scan + 1) = (char_u) (((unsigned)offset >> 8) & 0377); | |
| 2931 *(scan + 2) = (char_u) (offset & 0377); | |
| 2932 } | |
| 7 | 2933 } |
| 2934 | |
| 2935 /* | |
| 4444 | 2936 * Like regtail, on item after a BRANCH; nop if none. |
| 7 | 2937 */ |
| 2938 static void | |
|
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diff
changeset
|
2939 regoptail(char_u *p, char_u *val) |
| 7 | 2940 { |
| 2941 /* When op is neither BRANCH nor BRACE_COMPLEX0-9, it is "operandless" */ | |
| 2942 if (p == NULL || p == JUST_CALC_SIZE | |
| 2943 || (OP(p) != BRANCH | |
| 2944 && (OP(p) < BRACE_COMPLEX || OP(p) > BRACE_COMPLEX + 9))) | |
| 2945 return; | |
| 2946 regtail(OPERAND(p), val); | |
| 2947 } | |
| 2948 | |
| 2949 /* | |
| 4444 | 2950 * Functions for getting characters from the regexp input. |
| 7 | 2951 */ |
| 4444 | 2952 /* |
| 2953 * Start parsing at "str". | |
| 2954 */ | |
| 7 | 2955 static void |
|
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changeset
|
2956 initchr(char_u *str) |
| 7 | 2957 { |
| 2958 regparse = str; | |
| 2959 prevchr_len = 0; | |
| 2960 curchr = prevprevchr = prevchr = nextchr = -1; | |
| 2961 at_start = TRUE; | |
| 2962 prev_at_start = FALSE; | |
| 2963 } | |
| 2964 | |
| 4444 | 2965 /* |
|
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|
2966 * Save the current parse state, so that it can be restored and parsing |
|
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|
2967 * starts in the same state again. |
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2968 */ |
|
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|
2969 static void |
|
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|
2970 save_parse_state(parse_state_T *ps) |
|
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2971 { |
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|
2972 ps->regparse = regparse; |
|
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2973 ps->prevchr_len = prevchr_len; |
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2974 ps->curchr = curchr; |
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2975 ps->prevchr = prevchr; |
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2976 ps->prevprevchr = prevprevchr; |
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2977 ps->nextchr = nextchr; |
|
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2978 ps->at_start = at_start; |
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2979 ps->prev_at_start = prev_at_start; |
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2980 ps->regnpar = regnpar; |
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2981 } |
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2982 |
|
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2983 /* |
|
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2984 * Restore a previously saved parse state. |
|
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2985 */ |
|
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|
2986 static void |
|
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|
2987 restore_parse_state(parse_state_T *ps) |
|
4679
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2988 { |
|
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|
2989 regparse = ps->regparse; |
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2990 prevchr_len = ps->prevchr_len; |
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2991 curchr = ps->curchr; |
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2992 prevchr = ps->prevchr; |
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2993 prevprevchr = ps->prevprevchr; |
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2994 nextchr = ps->nextchr; |
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2995 at_start = ps->at_start; |
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2996 prev_at_start = ps->prev_at_start; |
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2997 regnpar = ps->regnpar; |
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2998 } |
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|
2999 |
|
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3000 |
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|
3001 /* |
| 4444 | 3002 * Get the next character without advancing. |
| 3003 */ | |
| 7 | 3004 static int |
|
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changeset
|
3005 peekchr(void) |
| 7 | 3006 { |
| 167 | 3007 static int after_slash = FALSE; |
| 3008 | |
| 7 | 3009 if (curchr == -1) |
| 3010 { | |
| 3011 switch (curchr = regparse[0]) | |
| 3012 { | |
| 3013 case '.': | |
| 3014 case '[': | |
| 3015 case '~': | |
| 3016 /* magic when 'magic' is on */ | |
| 3017 if (reg_magic >= MAGIC_ON) | |
| 3018 curchr = Magic(curchr); | |
| 3019 break; | |
| 3020 case '(': | |
| 3021 case ')': | |
| 3022 case '{': | |
| 3023 case '%': | |
| 3024 case '+': | |
| 3025 case '=': | |
| 3026 case '?': | |
| 3027 case '@': | |
| 3028 case '!': | |
| 3029 case '&': | |
| 3030 case '|': | |
| 3031 case '<': | |
| 3032 case '>': | |
| 3033 case '#': /* future ext. */ | |
| 3034 case '"': /* future ext. */ | |
| 3035 case '\'': /* future ext. */ | |
| 3036 case ',': /* future ext. */ | |
| 3037 case '-': /* future ext. */ | |
| 3038 case ':': /* future ext. */ | |
| 3039 case ';': /* future ext. */ | |
| 3040 case '`': /* future ext. */ | |
| 3041 case '/': /* Can't be used in / command */ | |
| 3042 /* magic only after "\v" */ | |
| 3043 if (reg_magic == MAGIC_ALL) | |
| 3044 curchr = Magic(curchr); | |
| 3045 break; | |
| 3046 case '*': | |
| 167 | 3047 /* * is not magic as the very first character, eg "?*ptr", when |
| 3048 * after '^', eg "/^*ptr" and when after "\(", "\|", "\&". But | |
| 3049 * "\(\*" is not magic, thus must be magic if "after_slash" */ | |
| 3050 if (reg_magic >= MAGIC_ON | |
| 3051 && !at_start | |
| 3052 && !(prev_at_start && prevchr == Magic('^')) | |
| 3053 && (after_slash | |
| 3054 || (prevchr != Magic('(') | |
| 3055 && prevchr != Magic('&') | |
| 3056 && prevchr != Magic('|')))) | |
| 7 | 3057 curchr = Magic('*'); |
| 3058 break; | |
| 3059 case '^': | |
| 3060 /* '^' is only magic as the very first character and if it's after | |
| 3061 * "\(", "\|", "\&' or "\n" */ | |
| 3062 if (reg_magic >= MAGIC_OFF | |
| 3063 && (at_start | |
| 3064 || reg_magic == MAGIC_ALL | |
| 3065 || prevchr == Magic('(') | |
| 3066 || prevchr == Magic('|') | |
| 3067 || prevchr == Magic('&') | |
| 3068 || prevchr == Magic('n') | |
| 3069 || (no_Magic(prevchr) == '(' | |
| 3070 && prevprevchr == Magic('%')))) | |
| 3071 { | |
| 3072 curchr = Magic('^'); | |
| 3073 at_start = TRUE; | |
| 3074 prev_at_start = FALSE; | |
| 3075 } | |
| 3076 break; | |
| 3077 case '$': | |
| 3078 /* '$' is only magic as the very last char and if it's in front of | |
| 3079 * either "\|", "\)", "\&", or "\n" */ | |
| 3080 if (reg_magic >= MAGIC_OFF) | |
| 3081 { | |
| 3082 char_u *p = regparse + 1; | |
| 6041 | 3083 int is_magic_all = (reg_magic == MAGIC_ALL); |
| 3084 | |
| 3085 /* ignore \c \C \m \M \v \V and \Z after '$' */ | |
| 7 | 3086 while (p[0] == '\\' && (p[1] == 'c' || p[1] == 'C' |
| 6041 | 3087 || p[1] == 'm' || p[1] == 'M' |
| 3088 || p[1] == 'v' || p[1] == 'V' || p[1] == 'Z')) | |
| 3089 { | |
| 3090 if (p[1] == 'v') | |
| 3091 is_magic_all = TRUE; | |
| 3092 else if (p[1] == 'm' || p[1] == 'M' || p[1] == 'V') | |
| 3093 is_magic_all = FALSE; | |
| 7 | 3094 p += 2; |
| 6041 | 3095 } |
| 7 | 3096 if (p[0] == NUL |
| 3097 || (p[0] == '\\' | |
| 3098 && (p[1] == '|' || p[1] == '&' || p[1] == ')' | |
| 3099 || p[1] == 'n')) | |
| 6041 | 3100 || (is_magic_all |
| 3101 && (p[0] == '|' || p[0] == '&' || p[0] == ')')) | |
| 7 | 3102 || reg_magic == MAGIC_ALL) |
| 3103 curchr = Magic('$'); | |
| 3104 } | |
| 3105 break; | |
| 3106 case '\\': | |
| 3107 { | |
| 3108 int c = regparse[1]; | |
| 3109 | |
| 3110 if (c == NUL) | |
| 3111 curchr = '\\'; /* trailing '\' */ | |
| 3112 else if ( | |
| 3113 #ifdef EBCDIC | |
| 3114 vim_strchr(META, c) | |
| 3115 #else | |
| 3116 c <= '~' && META_flags[c] | |
| 3117 #endif | |
| 3118 ) | |
| 3119 { | |
| 3120 /* | |
| 3121 * META contains everything that may be magic sometimes, | |
| 3122 * except ^ and $ ("\^" and "\$" are only magic after | |
| 6830 | 3123 * "\V"). We now fetch the next character and toggle its |
| 7 | 3124 * magicness. Therefore, \ is so meta-magic that it is |
| 3125 * not in META. | |
| 3126 */ | |
| 3127 curchr = -1; | |
| 3128 prev_at_start = at_start; | |
| 3129 at_start = FALSE; /* be able to say "/\*ptr" */ | |
| 3130 ++regparse; | |
| 167 | 3131 ++after_slash; |
| 7 | 3132 peekchr(); |
| 3133 --regparse; | |
| 167 | 3134 --after_slash; |
| 7 | 3135 curchr = toggle_Magic(curchr); |
| 3136 } | |
| 3137 else if (vim_strchr(REGEXP_ABBR, c)) | |
| 3138 { | |
| 3139 /* | |
| 3140 * Handle abbreviations, like "\t" for TAB -- webb | |
| 3141 */ | |
| 3142 curchr = backslash_trans(c); | |
| 3143 } | |
| 3144 else if (reg_magic == MAGIC_NONE && (c == '$' || c == '^')) | |
| 3145 curchr = toggle_Magic(c); | |
| 3146 else | |
| 3147 { | |
| 3148 /* | |
| 3149 * Next character can never be (made) magic? | |
| 3150 * Then backslashing it won't do anything. | |
| 3151 */ | |
| 3152 #ifdef FEAT_MBYTE | |
| 3153 if (has_mbyte) | |
| 3154 curchr = (*mb_ptr2char)(regparse + 1); | |
| 3155 else | |
| 3156 #endif | |
| 3157 curchr = c; | |
| 3158 } | |
| 3159 break; | |
| 3160 } | |
| 3161 | |
| 3162 #ifdef FEAT_MBYTE | |
| 3163 default: | |
| 3164 if (has_mbyte) | |
| 3165 curchr = (*mb_ptr2char)(regparse); | |
| 3166 #endif | |
| 3167 } | |
| 3168 } | |
| 3169 | |
| 3170 return curchr; | |
| 3171 } | |
| 3172 | |
| 3173 /* | |
| 3174 * Eat one lexed character. Do this in a way that we can undo it. | |
| 3175 */ | |
| 3176 static void | |
|
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|
3177 skipchr(void) |
| 7 | 3178 { |
| 3179 /* peekchr() eats a backslash, do the same here */ | |
| 3180 if (*regparse == '\\') | |
| 3181 prevchr_len = 1; | |
| 3182 else | |
| 3183 prevchr_len = 0; | |
| 3184 if (regparse[prevchr_len] != NUL) | |
| 3185 { | |
| 3186 #ifdef FEAT_MBYTE | |
| 714 | 3187 if (enc_utf8) |
| 1449 | 3188 /* exclude composing chars that mb_ptr2len does include */ |
| 3189 prevchr_len += utf_ptr2len(regparse + prevchr_len); | |
| 714 | 3190 else if (has_mbyte) |
| 474 | 3191 prevchr_len += (*mb_ptr2len)(regparse + prevchr_len); |
| 7 | 3192 else |
| 3193 #endif | |
| 3194 ++prevchr_len; | |
| 3195 } | |
| 3196 regparse += prevchr_len; | |
| 3197 prev_at_start = at_start; | |
| 3198 at_start = FALSE; | |
| 3199 prevprevchr = prevchr; | |
| 3200 prevchr = curchr; | |
| 3201 curchr = nextchr; /* use previously unget char, or -1 */ | |
| 3202 nextchr = -1; | |
| 3203 } | |
| 3204 | |
| 3205 /* | |
| 3206 * Skip a character while keeping the value of prev_at_start for at_start. | |
| 3207 * prevchr and prevprevchr are also kept. | |
| 3208 */ | |
| 3209 static void | |
|
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diff
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|
3210 skipchr_keepstart(void) |
| 7 | 3211 { |
| 3212 int as = prev_at_start; | |
| 3213 int pr = prevchr; | |
| 3214 int prpr = prevprevchr; | |
| 3215 | |
| 3216 skipchr(); | |
| 3217 at_start = as; | |
| 3218 prevchr = pr; | |
| 3219 prevprevchr = prpr; | |
| 3220 } | |
| 3221 | |
| 4444 | 3222 /* |
| 3223 * Get the next character from the pattern. We know about magic and such, so | |
| 3224 * therefore we need a lexical analyzer. | |
| 3225 */ | |
| 7 | 3226 static int |
|
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|
3227 getchr(void) |
| 7 | 3228 { |
| 3229 int chr = peekchr(); | |
| 3230 | |
| 3231 skipchr(); | |
| 3232 return chr; | |
| 3233 } | |
| 3234 | |
| 3235 /* | |
| 3236 * put character back. Works only once! | |
| 3237 */ | |
| 3238 static void | |
|
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|
3239 ungetchr(void) |
| 7 | 3240 { |
| 3241 nextchr = curchr; | |
| 3242 curchr = prevchr; | |
| 3243 prevchr = prevprevchr; | |
| 3244 at_start = prev_at_start; | |
| 3245 prev_at_start = FALSE; | |
| 3246 | |
| 3247 /* Backup regparse, so that it's at the same position as before the | |
| 3248 * getchr(). */ | |
| 3249 regparse -= prevchr_len; | |
| 3250 } | |
| 3251 | |
| 3252 /* | |
| 29 | 3253 * Get and return the value of the hex string at the current position. |
| 3254 * Return -1 if there is no valid hex number. | |
| 3255 * The position is updated: | |
| 24 | 3256 * blahblah\%x20asdf |
| 856 | 3257 * before-^ ^-after |
| 24 | 3258 * The parameter controls the maximum number of input characters. This will be |
| 3259 * 2 when reading a \%x20 sequence and 4 when reading a \%u20AC sequence. | |
| 3260 */ | |
| 3261 static int | |
|
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|
3262 gethexchrs(int maxinputlen) |
| 24 | 3263 { |
| 3264 int nr = 0; | |
| 3265 int c; | |
| 3266 int i; | |
| 3267 | |
| 3268 for (i = 0; i < maxinputlen; ++i) | |
| 3269 { | |
| 3270 c = regparse[0]; | |
| 3271 if (!vim_isxdigit(c)) | |
| 3272 break; | |
| 3273 nr <<= 4; | |
| 3274 nr |= hex2nr(c); | |
| 3275 ++regparse; | |
| 3276 } | |
| 3277 | |
| 3278 if (i == 0) | |
| 3279 return -1; | |
| 3280 return nr; | |
| 3281 } | |
| 3282 | |
| 3283 /* | |
|
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|
3284 * Get and return the value of the decimal string immediately after the |
| 24 | 3285 * current position. Return -1 for invalid. Consumes all digits. |
| 3286 */ | |
| 3287 static int | |
|
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|
3288 getdecchrs(void) |
| 24 | 3289 { |
| 3290 int nr = 0; | |
| 3291 int c; | |
| 3292 int i; | |
| 3293 | |
| 3294 for (i = 0; ; ++i) | |
| 3295 { | |
| 3296 c = regparse[0]; | |
| 3297 if (c < '0' || c > '9') | |
| 3298 break; | |
| 3299 nr *= 10; | |
| 3300 nr += c - '0'; | |
| 3301 ++regparse; | |
|
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|
3302 curchr = -1; /* no longer valid */ |
| 24 | 3303 } |
| 3304 | |
| 3305 if (i == 0) | |
| 3306 return -1; | |
| 3307 return nr; | |
| 3308 } | |
| 3309 | |
| 3310 /* | |
| 3311 * get and return the value of the octal string immediately after the current | |
| 3312 * position. Return -1 for invalid, or 0-255 for valid. Smart enough to handle | |
| 3313 * numbers > 377 correctly (for example, 400 is treated as 40) and doesn't | |
| 3314 * treat 8 or 9 as recognised characters. Position is updated: | |
| 3315 * blahblah\%o210asdf | |
| 856 | 3316 * before-^ ^-after |
| 24 | 3317 */ |
| 3318 static int | |
|
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|
3319 getoctchrs(void) |
| 24 | 3320 { |
| 3321 int nr = 0; | |
| 3322 int c; | |
| 3323 int i; | |
| 3324 | |
| 3325 for (i = 0; i < 3 && nr < 040; ++i) | |
| 3326 { | |
| 3327 c = regparse[0]; | |
| 3328 if (c < '0' || c > '7') | |
| 3329 break; | |
| 3330 nr <<= 3; | |
| 3331 nr |= hex2nr(c); | |
| 3332 ++regparse; | |
| 3333 } | |
| 3334 | |
| 3335 if (i == 0) | |
| 3336 return -1; | |
| 3337 return nr; | |
| 3338 } | |
| 3339 | |
| 3340 /* | |
| 3341 * Get a number after a backslash that is inside []. | |
| 3342 * When nothing is recognized return a backslash. | |
| 3343 */ | |
| 3344 static int | |
|
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|
3345 coll_get_char(void) |
| 24 | 3346 { |
| 3347 int nr = -1; | |
| 3348 | |
| 3349 switch (*regparse++) | |
| 3350 { | |
| 3351 case 'd': nr = getdecchrs(); break; | |
| 3352 case 'o': nr = getoctchrs(); break; | |
| 3353 case 'x': nr = gethexchrs(2); break; | |
| 3354 case 'u': nr = gethexchrs(4); break; | |
| 3355 case 'U': nr = gethexchrs(8); break; | |
| 3356 } | |
| 3357 if (nr < 0) | |
| 3358 { | |
| 3359 /* If getting the number fails be backwards compatible: the character | |
| 3360 * is a backslash. */ | |
| 3361 --regparse; | |
| 3362 nr = '\\'; | |
| 3363 } | |
| 3364 return nr; | |
| 3365 } | |
| 3366 | |
| 3367 /* | |
| 7 | 3368 * read_limits - Read two integers to be taken as a minimum and maximum. |
| 3369 * If the first character is '-', then the range is reversed. | |
| 3370 * Should end with 'end'. If minval is missing, zero is default, if maxval is | |
| 3371 * missing, a very big number is the default. | |
| 3372 */ | |
| 3373 static int | |
|
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changeset
|
3374 read_limits(long *minval, long *maxval) |
| 7 | 3375 { |
| 3376 int reverse = FALSE; | |
| 3377 char_u *first_char; | |
| 3378 long tmp; | |
| 3379 | |
| 3380 if (*regparse == '-') | |
| 3381 { | |
| 3382 /* Starts with '-', so reverse the range later */ | |
| 3383 regparse++; | |
| 3384 reverse = TRUE; | |
| 3385 } | |
| 3386 first_char = regparse; | |
| 3387 *minval = getdigits(®parse); | |
| 3388 if (*regparse == ',') /* There is a comma */ | |
| 3389 { | |
| 3390 if (vim_isdigit(*++regparse)) | |
| 3391 *maxval = getdigits(®parse); | |
| 3392 else | |
| 3393 *maxval = MAX_LIMIT; | |
| 3394 } | |
| 3395 else if (VIM_ISDIGIT(*first_char)) | |
| 3396 *maxval = *minval; /* It was \{n} or \{-n} */ | |
| 3397 else | |
| 3398 *maxval = MAX_LIMIT; /* It was \{} or \{-} */ | |
| 3399 if (*regparse == '\\') | |
| 3400 regparse++; /* Allow either \{...} or \{...\} */ | |
| 167 | 3401 if (*regparse != '}') |
| 7 | 3402 { |
| 3403 sprintf((char *)IObuff, _("E554: Syntax error in %s{...}"), | |
| 3404 reg_magic == MAGIC_ALL ? "" : "\\"); | |
| 3405 EMSG_RET_FAIL(IObuff); | |
| 3406 } | |
| 3407 | |
| 3408 /* | |
| 3409 * Reverse the range if there was a '-', or make sure it is in the right | |
| 3410 * order otherwise. | |
| 3411 */ | |
| 3412 if ((!reverse && *minval > *maxval) || (reverse && *minval < *maxval)) | |
| 3413 { | |
| 3414 tmp = *minval; | |
| 3415 *minval = *maxval; | |
| 3416 *maxval = tmp; | |
| 3417 } | |
| 3418 skipchr(); /* let's be friends with the lexer again */ | |
| 3419 return OK; | |
| 3420 } | |
| 3421 | |
| 3422 /* | |
| 3423 * vim_regexec and friends | |
| 3424 */ | |
| 3425 | |
| 3426 /* | |
| 3427 * Global work variables for vim_regexec(). | |
| 3428 */ | |
| 3429 | |
| 3430 /* The current match-position is remembered with these variables: */ | |
| 3431 static linenr_T reglnum; /* line number, relative to first line */ | |
| 3432 static char_u *regline; /* start of current line */ | |
| 3433 static char_u *reginput; /* current input, points into "regline" */ | |
| 3434 | |
| 3435 static int need_clear_subexpr; /* subexpressions still need to be | |
| 3436 * cleared */ | |
| 3437 #ifdef FEAT_SYN_HL | |
| 3438 static int need_clear_zsubexpr = FALSE; /* extmatch subexpressions | |
| 3439 * still need to be cleared */ | |
| 3440 #endif | |
| 3441 | |
| 3442 /* | |
| 3443 * Structure used to save the current input state, when it needs to be | |
| 3444 * restored after trying a match. Used by reg_save() and reg_restore(). | |
| 233 | 3445 * Also stores the length of "backpos". |
| 7 | 3446 */ |
| 3447 typedef struct | |
| 3448 { | |
| 3449 union | |
| 3450 { | |
| 3451 char_u *ptr; /* reginput pointer, for single-line regexp */ | |
| 3452 lpos_T pos; /* reginput pos, for multi-line regexp */ | |
| 3453 } rs_u; | |
| 233 | 3454 int rs_len; |
| 7 | 3455 } regsave_T; |
| 3456 | |
| 3457 /* struct to save start/end pointer/position in for \(\) */ | |
| 3458 typedef struct | |
| 3459 { | |
| 3460 union | |
| 3461 { | |
| 3462 char_u *ptr; | |
| 3463 lpos_T pos; | |
| 3464 } se_u; | |
| 3465 } save_se_T; | |
| 3466 | |
| 1579 | 3467 /* used for BEHIND and NOBEHIND matching */ |
| 3468 typedef struct regbehind_S | |
| 3469 { | |
| 3470 regsave_T save_after; | |
| 3471 regsave_T save_behind; | |
| 1602 | 3472 int save_need_clear_subexpr; |
| 1579 | 3473 save_se_T save_start[NSUBEXP]; |
| 3474 save_se_T save_end[NSUBEXP]; | |
| 3475 } regbehind_T; | |
| 3476 | |
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3477 static char_u *reg_getline(linenr_T lnum); |
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3478 static long bt_regexec_both(char_u *line, colnr_T col, proftime_T *tm); |
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3479 static long regtry(bt_regprog_T *prog, colnr_T col); |
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3480 static void cleanup_subexpr(void); |
| 7 | 3481 #ifdef FEAT_SYN_HL |
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3482 static void cleanup_zsubexpr(void); |
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3483 #endif |
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3484 static void save_subexpr(regbehind_T *bp); |
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3485 static void restore_subexpr(regbehind_T *bp); |
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3486 static void reg_nextline(void); |
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3487 static void reg_save(regsave_T *save, garray_T *gap); |
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3488 static void reg_restore(regsave_T *save, garray_T *gap); |
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3489 static int reg_save_equal(regsave_T *save); |
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3490 static void save_se_multi(save_se_T *savep, lpos_T *posp); |
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3491 static void save_se_one(save_se_T *savep, char_u **pp); |
| 7 | 3492 |
| 3493 /* Save the sub-expressions before attempting a match. */ | |
| 3494 #define save_se(savep, posp, pp) \ | |
| 3495 REG_MULTI ? save_se_multi((savep), (posp)) : save_se_one((savep), (pp)) | |
| 3496 | |
| 3497 /* After a failed match restore the sub-expressions. */ | |
| 3498 #define restore_se(savep, posp, pp) { \ | |
| 3499 if (REG_MULTI) \ | |
| 3500 *(posp) = (savep)->se_u.pos; \ | |
| 3501 else \ | |
| 3502 *(pp) = (savep)->se_u.ptr; } | |
| 3503 | |
|
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3504 static int re_num_cmp(long_u val, char_u *scan); |
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3505 static int match_with_backref(linenr_T start_lnum, colnr_T start_col, linenr_T end_lnum, colnr_T end_col, int *bytelen); |
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3506 static int regmatch(char_u *prog); |
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3507 static int regrepeat(char_u *p, long maxcount); |
| 7 | 3508 |
| 3509 #ifdef DEBUG | |
| 3510 int regnarrate = 0; | |
| 3511 #endif | |
| 3512 | |
| 3513 /* | |
| 3514 * Sometimes need to save a copy of a line. Since alloc()/free() is very | |
| 3515 * slow, we keep one allocated piece of memory and only re-allocate it when | |
| 4444 | 3516 * it's too small. It's freed in bt_regexec_both() when finished. |
| 7 | 3517 */ |
| 1468 | 3518 static char_u *reg_tofree = NULL; |
| 7 | 3519 static unsigned reg_tofreelen; |
| 3520 | |
| 3521 /* | |
|
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3522 * Structure used to store the execution state of the regex engine. |
| 1209 | 3523 * Which ones are set depends on whether a single-line or multi-line match is |
| 7 | 3524 * done: |
| 3525 * single-line multi-line | |
| 3526 * reg_match ®match_T NULL | |
| 3527 * reg_mmatch NULL ®mmatch_T | |
| 3528 * reg_startp reg_match->startp <invalid> | |
| 3529 * reg_endp reg_match->endp <invalid> | |
| 3530 * reg_startpos <invalid> reg_mmatch->startpos | |
| 3531 * reg_endpos <invalid> reg_mmatch->endpos | |
| 3532 * reg_win NULL window in which to search | |
| 4061 | 3533 * reg_buf curbuf buffer in which to search |
| 7 | 3534 * reg_firstlnum <invalid> first line in which to search |
| 3535 * reg_maxline 0 last line nr | |
| 3536 * reg_line_lbr FALSE or TRUE FALSE | |
| 3537 */ | |
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3538 typedef struct { |
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3539 regmatch_T *reg_match; |
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3540 regmmatch_T *reg_mmatch; |
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3541 char_u **reg_startp; |
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3542 char_u **reg_endp; |
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3543 lpos_T *reg_startpos; |
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3544 lpos_T *reg_endpos; |
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3545 win_T *reg_win; |
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3546 buf_T *reg_buf; |
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3547 linenr_T reg_firstlnum; |
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3548 linenr_T reg_maxline; |
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3549 int reg_line_lbr; /* "\n" in string is line break */ |
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3550 |
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3551 /* Internal copy of 'ignorecase'. It is set at each call to vim_regexec(). |
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3552 * Normally it gets the value of "rm_ic" or "rmm_ic", but when the pattern |
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3553 * contains '\c' or '\C' the value is overruled. */ |
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3554 int reg_ic; |
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3555 |
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3556 #ifdef FEAT_MBYTE |
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3557 /* Similar to rex.reg_ic, but only for 'combining' characters. Set with \Z |
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3558 * flag in the regexp. Defaults to false, always. */ |
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3559 int reg_icombine; |
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3560 #endif |
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3561 |
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3562 /* Copy of "rmm_maxcol": maximum column to search for a match. Zero when |
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3563 * there is no maximum. */ |
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3564 colnr_T reg_maxcol; |
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3565 } regexec_T; |
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3566 |
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3567 static regexec_T rex; |
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3568 static int rex_in_use = FALSE; |
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3569 |
| 7 | 3570 |
| 270 | 3571 /* Values for rs_state in regitem_T. */ |
| 3572 typedef enum regstate_E | |
| 3573 { | |
| 3574 RS_NOPEN = 0 /* NOPEN and NCLOSE */ | |
| 3575 , RS_MOPEN /* MOPEN + [0-9] */ | |
| 3576 , RS_MCLOSE /* MCLOSE + [0-9] */ | |
| 3577 #ifdef FEAT_SYN_HL | |
| 3578 , RS_ZOPEN /* ZOPEN + [0-9] */ | |
| 3579 , RS_ZCLOSE /* ZCLOSE + [0-9] */ | |
| 3580 #endif | |
| 3581 , RS_BRANCH /* BRANCH */ | |
| 3582 , RS_BRCPLX_MORE /* BRACE_COMPLEX and trying one more match */ | |
| 3583 , RS_BRCPLX_LONG /* BRACE_COMPLEX and trying longest match */ | |
| 3584 , RS_BRCPLX_SHORT /* BRACE_COMPLEX and trying shortest match */ | |
| 3585 , RS_NOMATCH /* NOMATCH */ | |
| 3586 , RS_BEHIND1 /* BEHIND / NOBEHIND matching rest */ | |
| 3587 , RS_BEHIND2 /* BEHIND / NOBEHIND matching behind part */ | |
| 3588 , RS_STAR_LONG /* STAR/PLUS/BRACE_SIMPLE longest match */ | |
| 3589 , RS_STAR_SHORT /* STAR/PLUS/BRACE_SIMPLE shortest match */ | |
| 3590 } regstate_T; | |
| 3591 | |
| 3592 /* | |
| 3593 * When there are alternatives a regstate_T is put on the regstack to remember | |
| 3594 * what we are doing. | |
| 3595 * Before it may be another type of item, depending on rs_state, to remember | |
| 3596 * more things. | |
| 3597 */ | |
| 3598 typedef struct regitem_S | |
| 3599 { | |
| 3600 regstate_T rs_state; /* what we are doing, one of RS_ above */ | |
| 3601 char_u *rs_scan; /* current node in program */ | |
| 3602 union | |
| 3603 { | |
| 3604 save_se_T sesave; | |
| 3605 regsave_T regsave; | |
| 3606 } rs_un; /* room for saving reginput */ | |
| 1579 | 3607 short rs_no; /* submatch nr or BEHIND/NOBEHIND */ |
| 270 | 3608 } regitem_T; |
| 3609 | |
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3610 static regitem_T *regstack_push(regstate_T state, char_u *scan); |
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3611 static void regstack_pop(char_u **scan); |
| 270 | 3612 |
| 3613 /* used for STAR, PLUS and BRACE_SIMPLE matching */ | |
| 3614 typedef struct regstar_S | |
| 3615 { | |
| 3616 int nextb; /* next byte */ | |
| 3617 int nextb_ic; /* next byte reverse case */ | |
| 3618 long count; | |
| 3619 long minval; | |
| 3620 long maxval; | |
| 3621 } regstar_T; | |
| 3622 | |
| 3623 /* used to store input position when a BACK was encountered, so that we now if | |
| 3624 * we made any progress since the last time. */ | |
| 3625 typedef struct backpos_S | |
| 3626 { | |
| 3627 char_u *bp_scan; /* "scan" where BACK was encountered */ | |
| 3628 regsave_T bp_pos; /* last input position */ | |
| 3629 } backpos_T; | |
| 3630 | |
| 3631 /* | |
| 1520 | 3632 * "regstack" and "backpos" are used by regmatch(). They are kept over calls |
| 3633 * to avoid invoking malloc() and free() often. | |
| 3634 * "regstack" is a stack with regitem_T items, sometimes preceded by regstar_T | |
| 3635 * or regbehind_T. | |
| 3636 * "backpos_T" is a table with backpos_T for BACK | |
| 270 | 3637 */ |
| 1520 | 3638 static garray_T regstack = {0, 0, 0, 0, NULL}; |
| 3639 static garray_T backpos = {0, 0, 0, 0, NULL}; | |
| 3640 | |
| 3641 /* | |
| 3642 * Both for regstack and backpos tables we use the following strategy of | |
| 3643 * allocation (to reduce malloc/free calls): | |
| 3644 * - Initial size is fairly small. | |
| 3645 * - When needed, the tables are grown bigger (8 times at first, double after | |
| 3646 * that). | |
| 3647 * - After executing the match we free the memory only if the array has grown. | |
| 3648 * Thus the memory is kept allocated when it's at the initial size. | |
| 3649 * This makes it fast while not keeping a lot of memory allocated. | |
| 3650 * A three times speed increase was observed when using many simple patterns. | |
| 3651 */ | |
| 3652 #define REGSTACK_INITIAL 2048 | |
| 3653 #define BACKPOS_INITIAL 64 | |
| 3654 | |
| 3655 #if defined(EXITFREE) || defined(PROTO) | |
| 3656 void | |
|
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|
3657 free_regexp_stuff(void) |
| 1520 | 3658 { |
| 3659 ga_clear(®stack); | |
| 3660 ga_clear(&backpos); | |
| 3661 vim_free(reg_tofree); | |
| 3662 vim_free(reg_prev_sub); | |
| 3663 } | |
| 3664 #endif | |
| 270 | 3665 |
| 7 | 3666 /* |
| 3667 * Get pointer to the line "lnum", which is relative to "reg_firstlnum". | |
| 3668 */ | |
| 3669 static char_u * | |
|
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3670 reg_getline(linenr_T lnum) |
| 7 | 3671 { |
| 3672 /* when looking behind for a match/no-match lnum is negative. But we | |
| 3673 * can't go before line 1 */ | |
|
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3674 if (rex.reg_firstlnum + lnum < 1) |
| 7 | 3675 return NULL; |
|
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3676 if (lnum > rex.reg_maxline) |
| 481 | 3677 /* Must have matched the "\n" in the last line. */ |
| 3678 return (char_u *)""; | |
|
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|
3679 return ml_get_buf(rex.reg_buf, rex.reg_firstlnum + lnum, FALSE); |
| 7 | 3680 } |
| 3681 | |
| 3682 static regsave_T behind_pos; | |
| 3683 | |
| 3684 #ifdef FEAT_SYN_HL | |
| 3685 static char_u *reg_startzp[NSUBEXP]; /* Workspace to mark beginning */ | |
| 3686 static char_u *reg_endzp[NSUBEXP]; /* and end of \z(...\) matches */ | |
| 3687 static lpos_T reg_startzpos[NSUBEXP]; /* idem, beginning pos */ | |
| 3688 static lpos_T reg_endzpos[NSUBEXP]; /* idem, end pos */ | |
| 3689 #endif | |
| 3690 | |
| 3691 /* TRUE if using multi-line regexp. */ | |
|
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3692 #define REG_MULTI (rex.reg_match == NULL) |
| 4444 | 3693 |
| 7 | 3694 /* |
| 3695 * Match a regexp against a string. | |
| 3696 * "rmp->regprog" is a compiled regexp as returned by vim_regcomp(). | |
| 3697 * Uses curbuf for line count and 'iskeyword'. | |
| 5838 | 3698 * if "line_lbr" is TRUE consider a "\n" in "line" to be a line break. |
| 7 | 3699 * |
| 6390 | 3700 * Returns 0 for failure, number of lines contained in the match otherwise. |
| 7 | 3701 */ |
| 4444 | 3702 static int |
|
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3703 bt_regexec_nl( |
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3704 regmatch_T *rmp, |
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3705 char_u *line, /* string to match against */ |
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3706 colnr_T col, /* column to start looking for match */ |
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3707 int line_lbr) |
| 7 | 3708 { |
|
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3709 rex.reg_match = rmp; |
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3710 rex.reg_mmatch = NULL; |
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3711 rex.reg_maxline = 0; |
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3712 rex.reg_line_lbr = line_lbr; |
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3713 rex.reg_buf = curbuf; |
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3714 rex.reg_win = NULL; |
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3715 rex.reg_ic = rmp->rm_ic; |
| 7 | 3716 #ifdef FEAT_MBYTE |
|
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3717 rex.reg_icombine = FALSE; |
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3718 #endif |
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3719 rex.reg_maxcol = 0; |
| 6390 | 3720 |
| 3721 return bt_regexec_both(line, col, NULL); | |
| 7 | 3722 } |
| 3723 | |
| 3724 /* | |
| 3725 * Match a regexp against multiple lines. | |
| 3726 * "rmp->regprog" is a compiled regexp as returned by vim_regcomp(). | |
| 3727 * Uses curbuf for line count and 'iskeyword'. | |
| 3728 * | |
| 3729 * Return zero if there is no match. Return number of lines contained in the | |
| 3730 * match otherwise. | |
| 3731 */ | |
| 4444 | 3732 static long |
|
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3733 bt_regexec_multi( |
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3734 regmmatch_T *rmp, |
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3735 win_T *win, /* window in which to search or NULL */ |
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3736 buf_T *buf, /* buffer in which to search */ |
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3737 linenr_T lnum, /* nr of line to start looking for match */ |
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3738 colnr_T col, /* column to start looking for match */ |
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3739 proftime_T *tm) /* timeout limit or NULL */ |
| 7 | 3740 { |
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3741 rex.reg_match = NULL; |
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3742 rex.reg_mmatch = rmp; |
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3743 rex.reg_buf = buf; |
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3744 rex.reg_win = win; |
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3745 rex.reg_firstlnum = lnum; |
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3746 rex.reg_maxline = rex.reg_buf->b_ml.ml_line_count - lnum; |
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3747 rex.reg_line_lbr = FALSE; |
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3748 rex.reg_ic = rmp->rmm_ic; |
| 7 | 3749 #ifdef FEAT_MBYTE |
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3750 rex.reg_icombine = FALSE; |
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3751 #endif |
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3752 rex.reg_maxcol = rmp->rmm_maxcol; |
| 7 | 3753 |
| 6390 | 3754 return bt_regexec_both(NULL, col, tm); |
| 7 | 3755 } |
| 3756 | |
| 3757 /* | |
| 3758 * Match a regexp against a string ("line" points to the string) or multiple | |
| 3759 * lines ("line" is NULL, use reg_getline()). | |
| 6390 | 3760 * Returns 0 for failure, number of lines contained in the match otherwise. |
| 7 | 3761 */ |
| 3762 static long | |
|
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3763 bt_regexec_both( |
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3764 char_u *line, |
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3765 colnr_T col, /* column to start looking for match */ |
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|
3766 proftime_T *tm UNUSED) /* timeout limit or NULL */ |
| 7 | 3767 { |
| 6390 | 3768 bt_regprog_T *prog; |
| 3769 char_u *s; | |
| 3770 long retval = 0L; | |
| 7 | 3771 |
| 1520 | 3772 /* Create "regstack" and "backpos" if they are not allocated yet. |
| 3773 * We allocate *_INITIAL amount of bytes first and then set the grow size | |
| 3774 * to much bigger value to avoid many malloc calls in case of deep regular | |
| 3775 * expressions. */ | |
| 3776 if (regstack.ga_data == NULL) | |
| 3777 { | |
| 3778 /* Use an item size of 1 byte, since we push different things | |
| 3779 * onto the regstack. */ | |
| 3780 ga_init2(®stack, 1, REGSTACK_INITIAL); | |
| 7009 | 3781 (void)ga_grow(®stack, REGSTACK_INITIAL); |
| 1520 | 3782 regstack.ga_growsize = REGSTACK_INITIAL * 8; |
| 3783 } | |
| 3784 | |
| 3785 if (backpos.ga_data == NULL) | |
| 3786 { | |
| 3787 ga_init2(&backpos, sizeof(backpos_T), BACKPOS_INITIAL); | |
| 7009 | 3788 (void)ga_grow(&backpos, BACKPOS_INITIAL); |
| 1520 | 3789 backpos.ga_growsize = BACKPOS_INITIAL * 8; |
| 3790 } | |
| 270 | 3791 |
| 7 | 3792 if (REG_MULTI) |
| 3793 { | |
|
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3794 prog = (bt_regprog_T *)rex.reg_mmatch->regprog; |
| 7 | 3795 line = reg_getline((linenr_T)0); |
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3796 rex.reg_startpos = rex.reg_mmatch->startpos; |
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3797 rex.reg_endpos = rex.reg_mmatch->endpos; |
| 7 | 3798 } |
| 3799 else | |
| 3800 { | |
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3801 prog = (bt_regprog_T *)rex.reg_match->regprog; |
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3802 rex.reg_startp = rex.reg_match->startp; |
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3803 rex.reg_endp = rex.reg_match->endp; |
| 7 | 3804 } |
| 3805 | |
| 3806 /* Be paranoid... */ | |
| 3807 if (prog == NULL || line == NULL) | |
| 3808 { | |
| 3809 EMSG(_(e_null)); | |
| 3810 goto theend; | |
| 3811 } | |
| 3812 | |
| 3813 /* Check validity of program. */ | |
| 3814 if (prog_magic_wrong()) | |
| 3815 goto theend; | |
| 3816 | |
| 410 | 3817 /* If the start column is past the maximum column: no need to try. */ |
|
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3818 if (rex.reg_maxcol > 0 && col >= rex.reg_maxcol) |
| 410 | 3819 goto theend; |
| 3820 | |
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3821 /* If pattern contains "\c" or "\C": overrule value of rex.reg_ic */ |
| 7 | 3822 if (prog->regflags & RF_ICASE) |
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3823 rex.reg_ic = TRUE; |
| 7 | 3824 else if (prog->regflags & RF_NOICASE) |
|
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3825 rex.reg_ic = FALSE; |
| 7 | 3826 |
| 3827 #ifdef FEAT_MBYTE | |
|
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3828 /* If pattern contains "\Z" overrule value of rex.reg_icombine */ |
| 7 | 3829 if (prog->regflags & RF_ICOMBINE) |
|
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3830 rex.reg_icombine = TRUE; |
| 7 | 3831 #endif |
| 3832 | |
| 3833 /* If there is a "must appear" string, look for it. */ | |
| 3834 if (prog->regmust != NULL) | |
| 3835 { | |
| 3836 int c; | |
| 3837 | |
| 3838 #ifdef FEAT_MBYTE | |
| 3839 if (has_mbyte) | |
| 3840 c = (*mb_ptr2char)(prog->regmust); | |
| 3841 else | |
| 3842 #endif | |
| 3843 c = *prog->regmust; | |
| 3844 s = line + col; | |
| 170 | 3845 |
| 3846 /* | |
| 3847 * This is used very often, esp. for ":global". Use three versions of | |
| 3848 * the loop to avoid overhead of conditions. | |
| 3849 */ | |
|
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diff
changeset
|
3850 if (!rex.reg_ic |
| 170 | 3851 #ifdef FEAT_MBYTE |
| 3852 && !has_mbyte | |
| 3853 #endif | |
| 3854 ) | |
| 3855 while ((s = vim_strbyte(s, c)) != NULL) | |
| 3856 { | |
| 3857 if (cstrncmp(s, prog->regmust, &prog->regmlen) == 0) | |
| 3858 break; /* Found it. */ | |
| 3859 ++s; | |
| 3860 } | |
| 3861 #ifdef FEAT_MBYTE | |
|
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diff
changeset
|
3862 else if (!rex.reg_ic || (!enc_utf8 && mb_char2len(c) > 1)) |
| 170 | 3863 while ((s = vim_strchr(s, c)) != NULL) |
| 3864 { | |
| 3865 if (cstrncmp(s, prog->regmust, &prog->regmlen) == 0) | |
| 3866 break; /* Found it. */ | |
| 3867 mb_ptr_adv(s); | |
| 3868 } | |
| 3869 #endif | |
| 3870 else | |
| 3871 while ((s = cstrchr(s, c)) != NULL) | |
| 3872 { | |
| 3873 if (cstrncmp(s, prog->regmust, &prog->regmlen) == 0) | |
| 3874 break; /* Found it. */ | |
| 3875 mb_ptr_adv(s); | |
| 3876 } | |
| 7 | 3877 if (s == NULL) /* Not present. */ |
| 3878 goto theend; | |
| 3879 } | |
| 3880 | |
| 3881 regline = line; | |
| 3882 reglnum = 0; | |
| 2578 | 3883 reg_toolong = FALSE; |
| 7 | 3884 |
| 3885 /* Simplest case: Anchored match need be tried only once. */ | |
| 3886 if (prog->reganch) | |
| 3887 { | |
| 3888 int c; | |
| 3889 | |
| 3890 #ifdef FEAT_MBYTE | |
| 3891 if (has_mbyte) | |
| 3892 c = (*mb_ptr2char)(regline + col); | |
| 3893 else | |
| 3894 #endif | |
| 3895 c = regline[col]; | |
| 3896 if (prog->regstart == NUL | |
| 3897 || prog->regstart == c | |
|
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diff
changeset
|
3898 || (rex.reg_ic && (( |
| 7 | 3899 #ifdef FEAT_MBYTE |
| 3900 (enc_utf8 && utf_fold(prog->regstart) == utf_fold(c))) | |
| 3901 || (c < 255 && prog->regstart < 255 && | |
| 3902 #endif | |
| 1347 | 3903 MB_TOLOWER(prog->regstart) == MB_TOLOWER(c))))) |
| 7 | 3904 retval = regtry(prog, col); |
| 3905 else | |
| 3906 retval = 0; | |
| 3907 } | |
| 3908 else | |
| 3909 { | |
| 1521 | 3910 #ifdef FEAT_RELTIME |
| 3911 int tm_count = 0; | |
| 3912 #endif | |
| 7 | 3913 /* Messy cases: unanchored match. */ |
| 180 | 3914 while (!got_int) |
| 7 | 3915 { |
| 3916 if (prog->regstart != NUL) | |
| 3917 { | |
| 170 | 3918 /* Skip until the char we know it must start with. |
| 3919 * Used often, do some work to avoid call overhead. */ | |
|
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diff
changeset
|
3920 if (!rex.reg_ic |
| 170 | 3921 #ifdef FEAT_MBYTE |
| 3922 && !has_mbyte | |
| 3923 #endif | |
| 3924 ) | |
| 3925 s = vim_strbyte(regline + col, prog->regstart); | |
| 3926 else | |
| 3927 s = cstrchr(regline + col, prog->regstart); | |
| 7 | 3928 if (s == NULL) |
| 3929 { | |
| 3930 retval = 0; | |
| 3931 break; | |
| 3932 } | |
| 3933 col = (int)(s - regline); | |
| 3934 } | |
| 3935 | |
| 410 | 3936 /* Check for maximum column to try. */ |
|
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diff
changeset
|
3937 if (rex.reg_maxcol > 0 && col >= rex.reg_maxcol) |
| 410 | 3938 { |
| 3939 retval = 0; | |
| 3940 break; | |
| 3941 } | |
| 3942 | |
| 7 | 3943 retval = regtry(prog, col); |
| 3944 if (retval > 0) | |
| 3945 break; | |
| 3946 | |
| 3947 /* if not currently on the first line, get it again */ | |
| 3948 if (reglnum != 0) | |
| 3949 { | |
| 481 | 3950 reglnum = 0; |
| 7 | 3951 regline = reg_getline((linenr_T)0); |
| 3952 } | |
| 3953 if (regline[col] == NUL) | |
| 3954 break; | |
| 3955 #ifdef FEAT_MBYTE | |
| 3956 if (has_mbyte) | |
| 474 | 3957 col += (*mb_ptr2len)(regline + col); |
| 7 | 3958 else |
| 3959 #endif | |
| 3960 ++col; | |
| 1521 | 3961 #ifdef FEAT_RELTIME |
| 3962 /* Check for timeout once in a twenty times to avoid overhead. */ | |
| 3963 if (tm != NULL && ++tm_count == 20) | |
| 3964 { | |
| 3965 tm_count = 0; | |
| 3966 if (profile_passed_limit(tm)) | |
| 3967 break; | |
| 3968 } | |
| 3969 #endif | |
| 7 | 3970 } |
| 3971 } | |
| 3972 | |
| 3973 theend: | |
| 1520 | 3974 /* Free "reg_tofree" when it's a bit big. |
| 3975 * Free regstack and backpos if they are bigger than their initial size. */ | |
| 3976 if (reg_tofreelen > 400) | |
| 3977 { | |
| 3978 vim_free(reg_tofree); | |
| 3979 reg_tofree = NULL; | |
| 3980 } | |
| 3981 if (regstack.ga_maxlen > REGSTACK_INITIAL) | |
| 3982 ga_clear(®stack); | |
| 3983 if (backpos.ga_maxlen > BACKPOS_INITIAL) | |
| 3984 ga_clear(&backpos); | |
| 270 | 3985 |
| 7 | 3986 return retval; |
| 3987 } | |
| 3988 | |
| 3989 #ifdef FEAT_SYN_HL | |
|
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|
3990 static reg_extmatch_T *make_extmatch(void); |
| 7 | 3991 |
| 3992 /* | |
| 3993 * Create a new extmatch and mark it as referenced once. | |
| 3994 */ | |
| 3995 static reg_extmatch_T * | |
|
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diff
changeset
|
3996 make_extmatch(void) |
| 7 | 3997 { |
| 3998 reg_extmatch_T *em; | |
| 3999 | |
| 4000 em = (reg_extmatch_T *)alloc_clear((unsigned)sizeof(reg_extmatch_T)); | |
| 4001 if (em != NULL) | |
| 4002 em->refcnt = 1; | |
| 4003 return em; | |
| 4004 } | |
| 4005 | |
| 4006 /* | |
| 4007 * Add a reference to an extmatch. | |
| 4008 */ | |
| 4009 reg_extmatch_T * | |
|
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changeset
|
4010 ref_extmatch(reg_extmatch_T *em) |
| 7 | 4011 { |
| 4012 if (em != NULL) | |
| 4013 em->refcnt++; | |
| 4014 return em; | |
| 4015 } | |
| 4016 | |
| 4017 /* | |
| 4018 * Remove a reference to an extmatch. If there are no references left, free | |
| 4019 * the info. | |
| 4020 */ | |
| 4021 void | |
|
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changeset
|
4022 unref_extmatch(reg_extmatch_T *em) |
| 7 | 4023 { |
| 4024 int i; | |
| 4025 | |
| 4026 if (em != NULL && --em->refcnt <= 0) | |
| 4027 { | |
| 4028 for (i = 0; i < NSUBEXP; ++i) | |
| 4029 vim_free(em->matches[i]); | |
| 4030 vim_free(em); | |
| 4031 } | |
| 4032 } | |
| 4033 #endif | |
| 4034 | |
| 4035 /* | |
| 4036 * regtry - try match of "prog" with at regline["col"]. | |
| 4037 * Returns 0 for failure, number of lines contained in the match otherwise. | |
| 4038 */ | |
| 4039 static long | |
|
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diff
changeset
|
4040 regtry(bt_regprog_T *prog, colnr_T col) |
| 7 | 4041 { |
| 4042 reginput = regline + col; | |
| 4043 need_clear_subexpr = TRUE; | |
| 4044 #ifdef FEAT_SYN_HL | |
| 4045 /* Clear the external match subpointers if necessary. */ | |
| 4046 if (prog->reghasz == REX_SET) | |
| 4047 need_clear_zsubexpr = TRUE; | |
| 4048 #endif | |
| 4049 | |
| 189 | 4050 if (regmatch(prog->program + 1) == 0) |
| 4051 return 0; | |
| 4052 | |
| 4053 cleanup_subexpr(); | |
| 4054 if (REG_MULTI) | |
| 7 | 4055 { |
|
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4056 if (rex.reg_startpos[0].lnum < 0) |
| 7 | 4057 { |
|
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|
4058 rex.reg_startpos[0].lnum = 0; |
|
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|
4059 rex.reg_startpos[0].col = col; |
| 189 | 4060 } |
|
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|
4061 if (rex.reg_endpos[0].lnum < 0) |
| 189 | 4062 { |
|
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|
4063 rex.reg_endpos[0].lnum = reglnum; |
|
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diff
changeset
|
4064 rex.reg_endpos[0].col = (int)(reginput - regline); |
| 7 | 4065 } |
| 4066 else | |
| 189 | 4067 /* Use line number of "\ze". */ |
|
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|
4068 reglnum = rex.reg_endpos[0].lnum; |
| 189 | 4069 } |
| 4070 else | |
| 4071 { | |
|
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|
4072 if (rex.reg_startp[0] == NULL) |
|
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diff
changeset
|
4073 rex.reg_startp[0] = regline + col; |
|
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diff
changeset
|
4074 if (rex.reg_endp[0] == NULL) |
|
d76ccdacb41e
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10187
diff
changeset
|
4075 rex.reg_endp[0] = reginput; |
| 189 | 4076 } |
| 7 | 4077 #ifdef FEAT_SYN_HL |
| 189 | 4078 /* Package any found \z(...\) matches for export. Default is none. */ |
| 4079 unref_extmatch(re_extmatch_out); | |
| 4080 re_extmatch_out = NULL; | |
| 4081 | |
| 4082 if (prog->reghasz == REX_SET) | |
| 4083 { | |
| 4084 int i; | |
| 4085 | |
| 4086 cleanup_zsubexpr(); | |
| 4087 re_extmatch_out = make_extmatch(); | |
| 4088 for (i = 0; i < NSUBEXP; i++) | |
| 7 | 4089 { |
| 189 | 4090 if (REG_MULTI) |
| 7 | 4091 { |
| 189 | 4092 /* Only accept single line matches. */ |
| 4093 if (reg_startzpos[i].lnum >= 0 | |
| 5820 | 4094 && reg_endzpos[i].lnum == reg_startzpos[i].lnum |
| 4095 && reg_endzpos[i].col >= reg_startzpos[i].col) | |
| 189 | 4096 re_extmatch_out->matches[i] = |
| 4097 vim_strnsave(reg_getline(reg_startzpos[i].lnum) | |
| 7 | 4098 + reg_startzpos[i].col, |
| 189 | 4099 reg_endzpos[i].col - reg_startzpos[i].col); |
| 4100 } | |
| 4101 else | |
| 4102 { | |
| 4103 if (reg_startzp[i] != NULL && reg_endzp[i] != NULL) | |
| 4104 re_extmatch_out->matches[i] = | |
| 7 | 4105 vim_strnsave(reg_startzp[i], |
| 189 | 4106 (int)(reg_endzp[i] - reg_startzp[i])); |
| 7 | 4107 } |
| 4108 } | |
| 189 | 4109 } |
| 7 | 4110 #endif |
| 189 | 4111 return 1 + reglnum; |
| 7 | 4112 } |
| 4113 | |
| 4114 #ifdef FEAT_MBYTE | |
|
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changeset
|
4115 static int reg_prev_class(void); |
| 7 | 4116 |
| 4117 /* | |
| 4118 * Get class of previous character. | |
| 4119 */ | |
| 4120 static int | |
|
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|
4121 reg_prev_class(void) |
| 7 | 4122 { |
| 4123 if (reginput > regline) | |
| 4069 | 4124 return mb_get_class_buf(reginput - 1 |
|
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|
4125 - (*mb_head_off)(regline, reginput - 1), rex.reg_buf); |
| 7 | 4126 return -1; |
| 4127 } | |
| 5735 | 4128 #endif |
| 4129 | |
|
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|
4130 static int reg_match_visual(void); |
|
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4131 |
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4132 /* |
|
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|
4133 * Return TRUE if the current reginput position matches the Visual area. |
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4134 */ |
|
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4135 static int |
|
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|
4136 reg_match_visual(void) |
|
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4137 { |
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4138 pos_T top, bot; |
|
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4139 linenr_T lnum; |
|
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4140 colnr_T col; |
|
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|
4141 win_T *wp = rex.reg_win == NULL ? curwin : rex.reg_win; |
|
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4142 int mode; |
|
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4143 colnr_T start, end; |
|
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4144 colnr_T start2, end2; |
|
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4145 colnr_T cols; |
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4146 |
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|
4147 /* Check if the buffer is the current buffer. */ |
|
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|
4148 if (rex.reg_buf != curbuf || VIsual.lnum == 0) |
|
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4149 return FALSE; |
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4150 |
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4151 if (VIsual_active) |
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4152 { |
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4153 if (lt(VIsual, wp->w_cursor)) |
|
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4154 { |
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|
4155 top = VIsual; |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4156 bot = wp->w_cursor; |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4157 } |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4158 else |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4159 { |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4160 top = wp->w_cursor; |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4161 bot = VIsual; |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4162 } |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4163 mode = VIsual_mode; |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4164 } |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4165 else |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4166 { |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4167 if (lt(curbuf->b_visual.vi_start, curbuf->b_visual.vi_end)) |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4168 { |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4169 top = curbuf->b_visual.vi_start; |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4170 bot = curbuf->b_visual.vi_end; |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4171 } |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4172 else |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4173 { |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4174 top = curbuf->b_visual.vi_end; |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4175 bot = curbuf->b_visual.vi_start; |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4176 } |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4177 mode = curbuf->b_visual.vi_mode; |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4178 } |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
4179 lnum = reglnum + rex.reg_firstlnum; |
|
4730
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4180 if (lnum < top.lnum || lnum > bot.lnum) |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4181 return FALSE; |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4182 |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4183 if (mode == 'v') |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4184 { |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4185 col = (colnr_T)(reginput - regline); |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4186 if ((lnum == top.lnum && col < top.col) |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4187 || (lnum == bot.lnum && col >= bot.col + (*p_sel != 'e'))) |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4188 return FALSE; |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4189 } |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4190 else if (mode == Ctrl_V) |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4191 { |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4192 getvvcol(wp, &top, &start, NULL, &end); |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4193 getvvcol(wp, &bot, &start2, NULL, &end2); |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4194 if (start2 < start) |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4195 start = start2; |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4196 if (end2 > end) |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4197 end = end2; |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4198 if (top.col == MAXCOL || bot.col == MAXCOL) |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4199 end = MAXCOL; |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4200 cols = win_linetabsize(wp, regline, (colnr_T)(reginput - regline)); |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4201 if (cols < start || cols > end - (*p_sel == 'e')) |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4202 return FALSE; |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4203 } |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4204 return TRUE; |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4205 } |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4206 |
| 39 | 4207 #define ADVANCE_REGINPUT() mb_ptr_adv(reginput) |
| 7 | 4208 |
| 4209 /* | |
| 4210 * The arguments from BRACE_LIMITS are stored here. They are actually local | |
| 4211 * to regmatch(), but they are here to reduce the amount of stack space used | |
| 4212 * (it can be called recursively many times). | |
| 4213 */ | |
| 4214 static long bl_minval; | |
| 4215 static long bl_maxval; | |
| 4216 | |
| 4217 /* | |
| 4218 * regmatch - main matching routine | |
| 4219 * | |
| 180 | 4220 * Conceptually the strategy is simple: Check to see whether the current node |
| 4221 * matches, push an item onto the regstack and loop to see whether the rest | |
| 4222 * matches, and then act accordingly. In practice we make some effort to | |
| 4223 * avoid using the regstack, in particular by going through "ordinary" nodes | |
| 4224 * (that don't need to know whether the rest of the match failed) by a nested | |
| 4225 * loop. | |
| 7 | 4226 * |
| 4227 * Returns TRUE when there is a match. Leaves reginput and reglnum just after | |
| 4228 * the last matched character. | |
| 4229 * Returns FALSE when there is no match. Leaves reginput and reglnum in an | |
| 4230 * undefined state! | |
| 4231 */ | |
| 4232 static int | |
|
7833
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
4233 regmatch( |
|
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
4234 char_u *scan) /* Current node. */ |
| 7 | 4235 { |
| 180 | 4236 char_u *next; /* Next node. */ |
| 4237 int op; | |
| 4238 int c; | |
| 4239 regitem_T *rp; | |
| 4240 int no; | |
| 4241 int status; /* one of the RA_ values: */ | |
| 4242 #define RA_FAIL 1 /* something failed, abort */ | |
| 4243 #define RA_CONT 2 /* continue in inner loop */ | |
| 4244 #define RA_BREAK 3 /* break inner loop */ | |
| 4245 #define RA_MATCH 4 /* successful match */ | |
| 4246 #define RA_NOMATCH 5 /* didn't match */ | |
| 270 | 4247 |
| 1520 | 4248 /* Make "regstack" and "backpos" empty. They are allocated and freed in |
| 4444 | 4249 * bt_regexec_both() to reduce malloc()/free() calls. */ |
| 270 | 4250 regstack.ga_len = 0; |
| 4251 backpos.ga_len = 0; | |
| 233 | 4252 |
| 180 | 4253 /* |
| 233 | 4254 * Repeat until "regstack" is empty. |
| 180 | 4255 */ |
| 4256 for (;;) | |
| 4257 { | |
| 5310 | 4258 /* Some patterns may take a long time to match, e.g., "\([a-z]\+\)\+Q". |
| 4259 * Allow interrupting them with CTRL-C. */ | |
| 7 | 4260 fast_breakcheck(); |
| 4261 | |
| 4262 #ifdef DEBUG | |
| 4263 if (scan != NULL && regnarrate) | |
| 4264 { | |
| 4444 | 4265 mch_errmsg((char *)regprop(scan)); |
| 7 | 4266 mch_errmsg("(\n"); |
| 4267 } | |
| 4268 #endif | |
| 180 | 4269 |
| 4270 /* | |
| 233 | 4271 * Repeat for items that can be matched sequentially, without using the |
| 180 | 4272 * regstack. |
| 4273 */ | |
| 4274 for (;;) | |
| 7 | 4275 { |
| 180 | 4276 if (got_int || scan == NULL) |
| 4277 { | |
| 4278 status = RA_FAIL; | |
| 4279 break; | |
| 4280 } | |
| 4281 status = RA_CONT; | |
| 4282 | |
| 7 | 4283 #ifdef DEBUG |
| 4284 if (regnarrate) | |
| 4285 { | |
| 4444 | 4286 mch_errmsg((char *)regprop(scan)); |
| 7 | 4287 mch_errmsg("...\n"); |
| 4288 # ifdef FEAT_SYN_HL | |
| 4289 if (re_extmatch_in != NULL) | |
| 4290 { | |
| 4291 int i; | |
| 4292 | |
| 4293 mch_errmsg(_("External submatches:\n")); | |
| 4294 for (i = 0; i < NSUBEXP; i++) | |
| 4295 { | |
| 4296 mch_errmsg(" \""); | |
| 4297 if (re_extmatch_in->matches[i] != NULL) | |
| 4444 | 4298 mch_errmsg((char *)re_extmatch_in->matches[i]); |
| 7 | 4299 mch_errmsg("\"\n"); |
| 4300 } | |
| 4301 } | |
| 4302 # endif | |
| 4303 } | |
| 4304 #endif | |
| 4305 next = regnext(scan); | |
| 4306 | |
| 4307 op = OP(scan); | |
| 4308 /* Check for character class with NL added. */ | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
4309 if (!rex.reg_line_lbr && WITH_NL(op) && REG_MULTI |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
4310 && *reginput == NUL && reglnum <= rex.reg_maxline) |
| 7 | 4311 { |
| 4312 reg_nextline(); | |
| 4313 } | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
4314 else if (rex.reg_line_lbr && WITH_NL(op) && *reginput == '\n') |
| 7 | 4315 { |
| 4316 ADVANCE_REGINPUT(); | |
| 4317 } | |
| 4318 else | |
| 4319 { | |
| 4320 if (WITH_NL(op)) | |
| 180 | 4321 op -= ADD_NL; |
| 7 | 4322 #ifdef FEAT_MBYTE |
| 4323 if (has_mbyte) | |
| 4324 c = (*mb_ptr2char)(reginput); | |
| 4325 else | |
| 4326 #endif | |
| 4327 c = *reginput; | |
| 4328 switch (op) | |
| 4329 { | |
| 4330 case BOL: | |
| 4331 if (reginput != regline) | |
| 180 | 4332 status = RA_NOMATCH; |
| 7 | 4333 break; |
| 4334 | |
| 4335 case EOL: | |
| 4336 if (c != NUL) | |
| 180 | 4337 status = RA_NOMATCH; |
| 7 | 4338 break; |
| 4339 | |
| 4340 case RE_BOF: | |
| 1458 | 4341 /* We're not at the beginning of the file when below the first |
| 4342 * line where we started, not at the start of the line or we | |
| 4343 * didn't start at the first line of the buffer. */ | |
| 7 | 4344 if (reglnum != 0 || reginput != regline |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
4345 || (REG_MULTI && rex.reg_firstlnum > 1)) |
| 180 | 4346 status = RA_NOMATCH; |
| 7 | 4347 break; |
| 4348 | |
| 4349 case RE_EOF: | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
4350 if (reglnum != rex.reg_maxline || c != NUL) |
| 180 | 4351 status = RA_NOMATCH; |
| 7 | 4352 break; |
| 4353 | |
| 4354 case CURSOR: | |
| 4355 /* Check if the buffer is in a window and compare the | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
4356 * rex.reg_win->w_cursor position to the match position. */ |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
4357 if (rex.reg_win == NULL |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
4358 || (reglnum + rex.reg_firstlnum |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
4359 != rex.reg_win->w_cursor.lnum) |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
4360 || ((colnr_T)(reginput - regline) |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
4361 != rex.reg_win->w_cursor.col)) |
| 180 | 4362 status = RA_NOMATCH; |
| 7 | 4363 break; |
| 4364 | |
| 639 | 4365 case RE_MARK: |
|
4732
0798b096bab3
updated for version 7.3.1113
Bram Moolenaar <bram@vim.org>
parents:
4730
diff
changeset
|
4366 /* Compare the mark position to the match position. */ |
| 639 | 4367 { |
| 4368 int mark = OPERAND(scan)[0]; | |
| 4369 int cmp = OPERAND(scan)[1]; | |
| 4370 pos_T *pos; | |
| 4371 | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
4372 pos = getmark_buf(rex.reg_buf, mark, FALSE); |
| 1148 | 4373 if (pos == NULL /* mark doesn't exist */ |
|
4732
0798b096bab3
updated for version 7.3.1113
Bram Moolenaar <bram@vim.org>
parents:
4730
diff
changeset
|
4374 || pos->lnum <= 0 /* mark isn't set in reg_buf */ |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
4375 || (pos->lnum == reglnum + rex.reg_firstlnum |
| 639 | 4376 ? (pos->col == (colnr_T)(reginput - regline) |
| 4377 ? (cmp == '<' || cmp == '>') | |
| 4378 : (pos->col < (colnr_T)(reginput - regline) | |
| 4379 ? cmp != '>' | |
| 4380 : cmp != '<')) | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
4381 : (pos->lnum < reglnum + rex.reg_firstlnum |
| 639 | 4382 ? cmp != '>' |
| 4383 : cmp != '<'))) | |
| 4384 status = RA_NOMATCH; | |
| 4385 } | |
| 4386 break; | |
| 4387 | |
| 4388 case RE_VISUAL: | |
|
4730
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4389 if (!reg_match_visual()) |
| 639 | 4390 status = RA_NOMATCH; |
| 4391 break; | |
| 4392 | |
| 7 | 4393 case RE_LNUM: |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
4394 if (!REG_MULTI || !re_num_cmp((long_u)(reglnum + rex.reg_firstlnum), |
| 7 | 4395 scan)) |
| 180 | 4396 status = RA_NOMATCH; |
| 7 | 4397 break; |
| 4398 | |
| 4399 case RE_COL: | |
| 4400 if (!re_num_cmp((long_u)(reginput - regline) + 1, scan)) | |
| 180 | 4401 status = RA_NOMATCH; |
| 7 | 4402 break; |
| 4403 | |
| 4404 case RE_VCOL: | |
| 4405 if (!re_num_cmp((long_u)win_linetabsize( | |
|
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d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
4406 rex.reg_win == NULL ? curwin : rex.reg_win, |
| 7 | 4407 regline, (colnr_T)(reginput - regline)) + 1, scan)) |
| 180 | 4408 status = RA_NOMATCH; |
| 7 | 4409 break; |
| 4410 | |
| 4411 case BOW: /* \<word; reginput points to w */ | |
| 4412 if (c == NUL) /* Can't match at end of line */ | |
| 180 | 4413 status = RA_NOMATCH; |
| 7 | 4414 #ifdef FEAT_MBYTE |
| 180 | 4415 else if (has_mbyte) |
| 7 | 4416 { |
| 4417 int this_class; | |
| 4418 | |
| 4419 /* Get class of current and previous char (if it exists). */ | |
|
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commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
4420 this_class = mb_get_class_buf(reginput, rex.reg_buf); |
| 7 | 4421 if (this_class <= 1) |
| 180 | 4422 status = RA_NOMATCH; /* not on a word at all */ |
| 4423 else if (reg_prev_class() == this_class) | |
| 4424 status = RA_NOMATCH; /* previous char is in same word */ | |
| 7 | 4425 } |
| 4426 #endif | |
| 4427 else | |
| 4428 { | |
|
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d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
4429 if (!vim_iswordc_buf(c, rex.reg_buf) || (reginput > regline |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
4430 && vim_iswordc_buf(reginput[-1], rex.reg_buf))) |
| 180 | 4431 status = RA_NOMATCH; |
| 7 | 4432 } |
| 4433 break; | |
| 4434 | |
| 4435 case EOW: /* word\>; reginput points after d */ | |
| 4436 if (reginput == regline) /* Can't match at start of line */ | |
| 180 | 4437 status = RA_NOMATCH; |
| 7 | 4438 #ifdef FEAT_MBYTE |
| 180 | 4439 else if (has_mbyte) |
| 7 | 4440 { |
| 4441 int this_class, prev_class; | |
| 4442 | |
| 4443 /* Get class of current and previous char (if it exists). */ | |
|
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commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
4444 this_class = mb_get_class_buf(reginput, rex.reg_buf); |
| 7 | 4445 prev_class = reg_prev_class(); |
| 180 | 4446 if (this_class == prev_class |
| 4447 || prev_class == 0 || prev_class == 1) | |
| 4448 status = RA_NOMATCH; | |
| 7 | 4449 } |
| 180 | 4450 #endif |
| 7 | 4451 else |
| 4452 { | |
|
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d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
4453 if (!vim_iswordc_buf(reginput[-1], rex.reg_buf) |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
4454 || (reginput[0] != NUL |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
4455 && vim_iswordc_buf(c, rex.reg_buf))) |
| 180 | 4456 status = RA_NOMATCH; |
| 7 | 4457 } |
| 4458 break; /* Matched with EOW */ | |
| 4459 | |
| 4460 case ANY: | |
| 4084 | 4461 /* ANY does not match new lines. */ |
| 7 | 4462 if (c == NUL) |
| 180 | 4463 status = RA_NOMATCH; |
| 4464 else | |
| 4465 ADVANCE_REGINPUT(); | |
| 7 | 4466 break; |
| 4467 | |
| 4468 case IDENT: | |
| 4469 if (!vim_isIDc(c)) | |
| 180 | 4470 status = RA_NOMATCH; |
| 4471 else | |
| 4472 ADVANCE_REGINPUT(); | |
| 7 | 4473 break; |
| 4474 | |
| 4475 case SIDENT: | |
| 4476 if (VIM_ISDIGIT(*reginput) || !vim_isIDc(c)) | |
| 180 | 4477 status = RA_NOMATCH; |
| 4478 else | |
| 4479 ADVANCE_REGINPUT(); | |
| 7 | 4480 break; |
| 4481 | |
| 4482 case KWORD: | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
4483 if (!vim_iswordp_buf(reginput, rex.reg_buf)) |
| 180 | 4484 status = RA_NOMATCH; |
| 4485 else | |
| 4486 ADVANCE_REGINPUT(); | |
| 7 | 4487 break; |
| 4488 | |
| 4489 case SKWORD: | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
4490 if (VIM_ISDIGIT(*reginput) |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
4491 || !vim_iswordp_buf(reginput, rex.reg_buf)) |
| 180 | 4492 status = RA_NOMATCH; |
| 4493 else | |
| 4494 ADVANCE_REGINPUT(); | |
| 7 | 4495 break; |
| 4496 | |
| 4497 case FNAME: | |
| 4498 if (!vim_isfilec(c)) | |
| 180 | 4499 status = RA_NOMATCH; |
| 4500 else | |
| 4501 ADVANCE_REGINPUT(); | |
| 7 | 4502 break; |
| 4503 | |
| 4504 case SFNAME: | |
| 4505 if (VIM_ISDIGIT(*reginput) || !vim_isfilec(c)) | |
| 180 | 4506 status = RA_NOMATCH; |
| 4507 else | |
| 4508 ADVANCE_REGINPUT(); | |
| 7 | 4509 break; |
| 4510 | |
| 4511 case PRINT: | |
|
5221
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updated for version 7.4a.036
Bram Moolenaar <bram@vim.org>
parents:
4901
diff
changeset
|
4512 if (!vim_isprintc(PTR2CHAR(reginput))) |
| 180 | 4513 status = RA_NOMATCH; |
| 4514 else | |
| 4515 ADVANCE_REGINPUT(); | |
| 7 | 4516 break; |
| 4517 | |
| 4518 case SPRINT: | |
|
5221
9982ec574beb
updated for version 7.4a.036
Bram Moolenaar <bram@vim.org>
parents:
4901
diff
changeset
|
4519 if (VIM_ISDIGIT(*reginput) || !vim_isprintc(PTR2CHAR(reginput))) |
| 180 | 4520 status = RA_NOMATCH; |
| 4521 else | |
| 4522 ADVANCE_REGINPUT(); | |
| 7 | 4523 break; |
| 4524 | |
| 4525 case WHITE: | |
| 4526 if (!vim_iswhite(c)) | |
| 180 | 4527 status = RA_NOMATCH; |
| 4528 else | |
| 4529 ADVANCE_REGINPUT(); | |
| 7 | 4530 break; |
| 4531 | |
| 4532 case NWHITE: | |
| 4533 if (c == NUL || vim_iswhite(c)) | |
| 180 | 4534 status = RA_NOMATCH; |
| 4535 else | |
| 4536 ADVANCE_REGINPUT(); | |
| 7 | 4537 break; |
| 4538 | |
| 4539 case DIGIT: | |
| 4540 if (!ri_digit(c)) | |
| 180 | 4541 status = RA_NOMATCH; |
| 4542 else | |
| 4543 ADVANCE_REGINPUT(); | |
| 7 | 4544 break; |
| 4545 | |
| 4546 case NDIGIT: | |
| 4547 if (c == NUL || ri_digit(c)) | |
| 180 | 4548 status = RA_NOMATCH; |
| 4549 else | |
| 4550 ADVANCE_REGINPUT(); | |
| 7 | 4551 break; |
| 4552 | |
| 4553 case HEX: | |
| 4554 if (!ri_hex(c)) | |
| 180 | 4555 status = RA_NOMATCH; |
| 4556 else | |
| 4557 ADVANCE_REGINPUT(); | |
| 7 | 4558 break; |
| 4559 | |
| 4560 case NHEX: | |
| 4561 if (c == NUL || ri_hex(c)) | |
| 180 | 4562 status = RA_NOMATCH; |
| 4563 else | |
| 4564 ADVANCE_REGINPUT(); | |
| 7 | 4565 break; |
| 4566 | |
| 4567 case OCTAL: | |
| 4568 if (!ri_octal(c)) | |
| 180 | 4569 status = RA_NOMATCH; |
| 4570 else | |
| 4571 ADVANCE_REGINPUT(); | |
| 7 | 4572 break; |
| 4573 | |
| 4574 case NOCTAL: | |
| 4575 if (c == NUL || ri_octal(c)) | |
| 180 | 4576 status = RA_NOMATCH; |
| 4577 else | |
| 4578 ADVANCE_REGINPUT(); | |
| 7 | 4579 break; |
| 4580 | |
| 4581 case WORD: | |
| 4582 if (!ri_word(c)) | |
| 180 | 4583 status = RA_NOMATCH; |
| 4584 else | |
| 4585 ADVANCE_REGINPUT(); | |
| 7 | 4586 break; |
| 4587 | |
| 4588 case NWORD: | |
| 4589 if (c == NUL || ri_word(c)) | |
| 180 | 4590 status = RA_NOMATCH; |
| 4591 else | |
| 4592 ADVANCE_REGINPUT(); | |
| 7 | 4593 break; |
| 4594 | |
| 4595 case HEAD: | |
| 4596 if (!ri_head(c)) | |
| 180 | 4597 status = RA_NOMATCH; |
| 4598 else | |
| 4599 ADVANCE_REGINPUT(); | |
| 7 | 4600 break; |
| 4601 | |
| 4602 case NHEAD: | |
| 4603 if (c == NUL || ri_head(c)) | |
| 180 | 4604 status = RA_NOMATCH; |
| 4605 else | |
| 4606 ADVANCE_REGINPUT(); | |
| 7 | 4607 break; |
| 4608 | |
| 4609 case ALPHA: | |
| 4610 if (!ri_alpha(c)) | |
| 180 | 4611 status = RA_NOMATCH; |
| 4612 else | |
| 4613 ADVANCE_REGINPUT(); | |
| 7 | 4614 break; |
| 4615 | |
| 4616 case NALPHA: | |
| 4617 if (c == NUL || ri_alpha(c)) | |
| 180 | 4618 status = RA_NOMATCH; |
| 4619 else | |
| 4620 ADVANCE_REGINPUT(); | |
| 7 | 4621 break; |
| 4622 | |
| 4623 case LOWER: | |
| 4624 if (!ri_lower(c)) | |
| 180 | 4625 status = RA_NOMATCH; |
| 4626 else | |
| 4627 ADVANCE_REGINPUT(); | |
| 7 | 4628 break; |
| 4629 | |
| 4630 case NLOWER: | |
| 4631 if (c == NUL || ri_lower(c)) | |
| 180 | 4632 status = RA_NOMATCH; |
| 4633 else | |
| 4634 ADVANCE_REGINPUT(); | |
| 7 | 4635 break; |
| 4636 | |
| 4637 case UPPER: | |
| 4638 if (!ri_upper(c)) | |
| 180 | 4639 status = RA_NOMATCH; |
| 4640 else | |
| 4641 ADVANCE_REGINPUT(); | |
| 7 | 4642 break; |
| 4643 | |
| 4644 case NUPPER: | |
| 4645 if (c == NUL || ri_upper(c)) | |
| 180 | 4646 status = RA_NOMATCH; |
| 4647 else | |
| 4648 ADVANCE_REGINPUT(); | |
| 7 | 4649 break; |
| 4650 | |
| 4651 case EXACTLY: | |
| 4652 { | |
| 4653 int len; | |
| 4654 char_u *opnd; | |
| 4655 | |
| 4656 opnd = OPERAND(scan); | |
| 4657 /* Inline the first byte, for speed. */ | |
| 4658 if (*opnd != *reginput | |
|
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d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
4659 && (!rex.reg_ic || ( |
| 7 | 4660 #ifdef FEAT_MBYTE |
| 4661 !enc_utf8 && | |
| 4662 #endif | |
| 1347 | 4663 MB_TOLOWER(*opnd) != MB_TOLOWER(*reginput)))) |
| 180 | 4664 status = RA_NOMATCH; |
| 4665 else if (*opnd == NUL) | |
| 7 | 4666 { |
| 4667 /* match empty string always works; happens when "~" is | |
| 4668 * empty. */ | |
| 4669 } | |
| 5899 | 4670 else |
| 4671 { | |
| 4672 if (opnd[1] == NUL | |
| 7 | 4673 #ifdef FEAT_MBYTE |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
4674 && !(enc_utf8 && rex.reg_ic) |
| 7 | 4675 #endif |
| 4676 ) | |
| 5899 | 4677 { |
| 4678 len = 1; /* matched a single byte above */ | |
| 4679 } | |
| 4680 else | |
| 4681 { | |
| 4682 /* Need to match first byte again for multi-byte. */ | |
| 4683 len = (int)STRLEN(opnd); | |
| 4684 if (cstrncmp(opnd, reginput, &len) != 0) | |
| 4685 status = RA_NOMATCH; | |
| 4686 } | |
| 7 | 4687 #ifdef FEAT_MBYTE |
| 5901 | 4688 /* Check for following composing character, unless %C |
| 4689 * follows (skips over all composing chars). */ | |
| 5899 | 4690 if (status != RA_NOMATCH |
| 4691 && enc_utf8 | |
| 4692 && UTF_COMPOSINGLIKE(reginput, reginput + len) | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
4693 && !rex.reg_icombine |
| 5901 | 4694 && OP(next) != RE_COMPOSING) |
| 7 | 4695 { |
| 4696 /* raaron: This code makes a composing character get | |
| 4697 * ignored, which is the correct behavior (sometimes) | |
| 4698 * for voweled Hebrew texts. */ | |
| 5899 | 4699 status = RA_NOMATCH; |
| 7 | 4700 } |
| 180 | 4701 #endif |
| 5899 | 4702 if (status != RA_NOMATCH) |
| 180 | 4703 reginput += len; |
| 7 | 4704 } |
| 4705 } | |
| 4706 break; | |
| 4707 | |
| 4708 case ANYOF: | |
| 4709 case ANYBUT: | |
| 4710 if (c == NUL) | |
| 180 | 4711 status = RA_NOMATCH; |
| 4712 else if ((cstrchr(OPERAND(scan), c) == NULL) == (op == ANYOF)) | |
| 4713 status = RA_NOMATCH; | |
| 4714 else | |
| 4715 ADVANCE_REGINPUT(); | |
| 7 | 4716 break; |
| 4717 | |
| 4718 #ifdef FEAT_MBYTE | |
| 4719 case MULTIBYTECODE: | |
| 4720 if (has_mbyte) | |
| 4721 { | |
| 4722 int i, len; | |
| 4723 char_u *opnd; | |
| 944 | 4724 int opndc = 0, inpc; |
| 7 | 4725 |
| 4726 opnd = OPERAND(scan); | |
| 4727 /* Safety check (just in case 'encoding' was changed since | |
| 4728 * compiling the program). */ | |
| 474 | 4729 if ((len = (*mb_ptr2len)(opnd)) < 2) |
| 180 | 4730 { |
| 4731 status = RA_NOMATCH; | |
| 4732 break; | |
| 4733 } | |
| 714 | 4734 if (enc_utf8) |
| 4735 opndc = mb_ptr2char(opnd); | |
| 4736 if (enc_utf8 && utf_iscomposing(opndc)) | |
| 4737 { | |
| 4738 /* When only a composing char is given match at any | |
| 4739 * position where that composing char appears. */ | |
| 4740 status = RA_NOMATCH; | |
| 6723 | 4741 for (i = 0; reginput[i] != NUL; |
| 4742 i += utf_ptr2len(reginput + i)) | |
| 180 | 4743 { |
| 714 | 4744 inpc = mb_ptr2char(reginput + i); |
| 4745 if (!utf_iscomposing(inpc)) | |
| 4746 { | |
| 4747 if (i > 0) | |
| 4748 break; | |
| 4749 } | |
| 4750 else if (opndc == inpc) | |
| 4751 { | |
| 4752 /* Include all following composing chars. */ | |
| 4753 len = i + mb_ptr2len(reginput + i); | |
| 4754 status = RA_MATCH; | |
| 4755 break; | |
| 4756 } | |
| 180 | 4757 } |
| 714 | 4758 } |
| 4759 else | |
| 4760 for (i = 0; i < len; ++i) | |
| 4761 if (opnd[i] != reginput[i]) | |
| 4762 { | |
| 4763 status = RA_NOMATCH; | |
| 4764 break; | |
| 4765 } | |
| 7 | 4766 reginput += len; |
| 4767 } | |
| 4768 else | |
| 180 | 4769 status = RA_NOMATCH; |
| 7 | 4770 break; |
| 4771 #endif | |
| 5901 | 4772 case RE_COMPOSING: |
| 4773 #ifdef FEAT_MBYTE | |
| 4774 if (enc_utf8) | |
| 4775 { | |
| 4776 /* Skip composing characters. */ | |
| 4777 while (utf_iscomposing(utf_ptr2char(reginput))) | |
| 4778 mb_cptr_adv(reginput); | |
| 4779 } | |
| 4780 #endif | |
| 4781 break; | |
| 7 | 4782 |
| 4783 case NOTHING: | |
| 4784 break; | |
| 4785 | |
| 4786 case BACK: | |
| 233 | 4787 { |
| 4788 int i; | |
| 4789 backpos_T *bp; | |
| 4790 | |
| 4791 /* | |
| 4792 * When we run into BACK we need to check if we don't keep | |
| 4793 * looping without matching any input. The second and later | |
| 4794 * times a BACK is encountered it fails if the input is still | |
| 4795 * at the same position as the previous time. | |
| 4796 * The positions are stored in "backpos" and found by the | |
| 4797 * current value of "scan", the position in the RE program. | |
| 4798 */ | |
| 4799 bp = (backpos_T *)backpos.ga_data; | |
| 4800 for (i = 0; i < backpos.ga_len; ++i) | |
| 4801 if (bp[i].bp_scan == scan) | |
| 4802 break; | |
| 4803 if (i == backpos.ga_len) | |
| 4804 { | |
| 4805 /* First time at this BACK, make room to store the pos. */ | |
| 4806 if (ga_grow(&backpos, 1) == FAIL) | |
| 4807 status = RA_FAIL; | |
| 4808 else | |
| 4809 { | |
| 4810 /* get "ga_data" again, it may have changed */ | |
| 4811 bp = (backpos_T *)backpos.ga_data; | |
| 4812 bp[i].bp_scan = scan; | |
| 4813 ++backpos.ga_len; | |
| 4814 } | |
| 4815 } | |
| 4816 else if (reg_save_equal(&bp[i].bp_pos)) | |
| 4817 /* Still at same position as last time, fail. */ | |
| 4818 status = RA_NOMATCH; | |
| 4819 | |
| 4820 if (status != RA_FAIL && status != RA_NOMATCH) | |
| 4821 reg_save(&bp[i].bp_pos, &backpos); | |
| 4822 } | |
| 179 | 4823 break; |
| 4824 | |
| 7 | 4825 case MOPEN + 0: /* Match start: \zs */ |
| 4826 case MOPEN + 1: /* \( */ | |
| 4827 case MOPEN + 2: | |
| 4828 case MOPEN + 3: | |
| 4829 case MOPEN + 4: | |
| 4830 case MOPEN + 5: | |
| 4831 case MOPEN + 6: | |
| 4832 case MOPEN + 7: | |
| 4833 case MOPEN + 8: | |
| 4834 case MOPEN + 9: | |
| 4835 { | |
| 4836 no = op - MOPEN; | |
| 4837 cleanup_subexpr(); | |
| 270 | 4838 rp = regstack_push(RS_MOPEN, scan); |
| 180 | 4839 if (rp == NULL) |
| 4840 status = RA_FAIL; | |
| 4841 else | |
| 4842 { | |
| 4843 rp->rs_no = no; | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
4844 save_se(&rp->rs_un.sesave, &rex.reg_startpos[no], |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
4845 &rex.reg_startp[no]); |
| 180 | 4846 /* We simply continue and handle the result when done. */ |
| 4847 } | |
| 7 | 4848 } |
| 180 | 4849 break; |
| 7 | 4850 |
| 4851 case NOPEN: /* \%( */ | |
| 4852 case NCLOSE: /* \) after \%( */ | |
| 270 | 4853 if (regstack_push(RS_NOPEN, scan) == NULL) |
| 180 | 4854 status = RA_FAIL; |
| 4855 /* We simply continue and handle the result when done. */ | |
| 4856 break; | |
| 7 | 4857 |
| 4858 #ifdef FEAT_SYN_HL | |
| 4859 case ZOPEN + 1: | |
| 4860 case ZOPEN + 2: | |
| 4861 case ZOPEN + 3: | |
| 4862 case ZOPEN + 4: | |
| 4863 case ZOPEN + 5: | |
| 4864 case ZOPEN + 6: | |
| 4865 case ZOPEN + 7: | |
| 4866 case ZOPEN + 8: | |
| 4867 case ZOPEN + 9: | |
| 4868 { | |
| 4869 no = op - ZOPEN; | |
| 4870 cleanup_zsubexpr(); | |
| 270 | 4871 rp = regstack_push(RS_ZOPEN, scan); |
| 180 | 4872 if (rp == NULL) |
| 4873 status = RA_FAIL; | |
| 4874 else | |
| 4875 { | |
| 4876 rp->rs_no = no; | |
| 4877 save_se(&rp->rs_un.sesave, ®_startzpos[no], | |
| 4878 ®_startzp[no]); | |
| 4879 /* We simply continue and handle the result when done. */ | |
| 4880 } | |
| 7 | 4881 } |
| 180 | 4882 break; |
| 7 | 4883 #endif |
| 4884 | |
| 4885 case MCLOSE + 0: /* Match end: \ze */ | |
| 4886 case MCLOSE + 1: /* \) */ | |
| 4887 case MCLOSE + 2: | |
| 4888 case MCLOSE + 3: | |
| 4889 case MCLOSE + 4: | |
| 4890 case MCLOSE + 5: | |
| 4891 case MCLOSE + 6: | |
| 4892 case MCLOSE + 7: | |
| 4893 case MCLOSE + 8: | |
| 4894 case MCLOSE + 9: | |
| 4895 { | |
| 4896 no = op - MCLOSE; | |
| 4897 cleanup_subexpr(); | |
| 270 | 4898 rp = regstack_push(RS_MCLOSE, scan); |
| 180 | 4899 if (rp == NULL) |
| 4900 status = RA_FAIL; | |
| 4901 else | |
| 4902 { | |
| 4903 rp->rs_no = no; | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
4904 save_se(&rp->rs_un.sesave, &rex.reg_endpos[no], |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
4905 &rex.reg_endp[no]); |
| 180 | 4906 /* We simply continue and handle the result when done. */ |
| 4907 } | |
| 7 | 4908 } |
| 180 | 4909 break; |
| 7 | 4910 |
| 4911 #ifdef FEAT_SYN_HL | |
| 4912 case ZCLOSE + 1: /* \) after \z( */ | |
| 4913 case ZCLOSE + 2: | |
| 4914 case ZCLOSE + 3: | |
| 4915 case ZCLOSE + 4: | |
| 4916 case ZCLOSE + 5: | |
| 4917 case ZCLOSE + 6: | |
| 4918 case ZCLOSE + 7: | |
| 4919 case ZCLOSE + 8: | |
| 4920 case ZCLOSE + 9: | |
| 4921 { | |
| 4922 no = op - ZCLOSE; | |
| 4923 cleanup_zsubexpr(); | |
| 270 | 4924 rp = regstack_push(RS_ZCLOSE, scan); |
| 180 | 4925 if (rp == NULL) |
| 4926 status = RA_FAIL; | |
| 4927 else | |
| 4928 { | |
| 4929 rp->rs_no = no; | |
| 4930 save_se(&rp->rs_un.sesave, ®_endzpos[no], | |
| 4931 ®_endzp[no]); | |
| 4932 /* We simply continue and handle the result when done. */ | |
| 4933 } | |
| 7 | 4934 } |
| 180 | 4935 break; |
| 7 | 4936 #endif |
| 4937 | |
| 4938 case BACKREF + 1: | |
| 4939 case BACKREF + 2: | |
| 4940 case BACKREF + 3: | |
| 4941 case BACKREF + 4: | |
| 4942 case BACKREF + 5: | |
| 4943 case BACKREF + 6: | |
| 4944 case BACKREF + 7: | |
| 4945 case BACKREF + 8: | |
| 4946 case BACKREF + 9: | |
| 4947 { | |
| 4948 int len; | |
| 4949 | |
| 4950 no = op - BACKREF; | |
| 4951 cleanup_subexpr(); | |
| 4952 if (!REG_MULTI) /* Single-line regexp */ | |
| 4953 { | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
4954 if (rex.reg_startp[no] == NULL || rex.reg_endp[no] == NULL) |
| 7 | 4955 { |
| 4956 /* Backref was not set: Match an empty string. */ | |
| 4957 len = 0; | |
| 4958 } | |
| 4959 else | |
| 4960 { | |
| 4961 /* Compare current input with back-ref in the same | |
| 4962 * line. */ | |
|
10245
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commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
4963 len = (int)(rex.reg_endp[no] - rex.reg_startp[no]); |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
4964 if (cstrncmp(rex.reg_startp[no], reginput, &len) != 0) |
| 180 | 4965 status = RA_NOMATCH; |
| 7 | 4966 } |
| 4967 } | |
| 4968 else /* Multi-line regexp */ | |
| 4969 { | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
4970 if (rex.reg_startpos[no].lnum < 0 |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
4971 || rex.reg_endpos[no].lnum < 0) |
| 7 | 4972 { |
| 4973 /* Backref was not set: Match an empty string. */ | |
| 4974 len = 0; | |
| 4975 } | |
| 4976 else | |
| 4977 { | |
|
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d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
4978 if (rex.reg_startpos[no].lnum == reglnum |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
4979 && rex.reg_endpos[no].lnum == reglnum) |
| 7 | 4980 { |
| 4981 /* Compare back-ref within the current line. */ | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
4982 len = rex.reg_endpos[no].col |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
4983 - rex.reg_startpos[no].col; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
4984 if (cstrncmp(regline + rex.reg_startpos[no].col, |
| 7 | 4985 reginput, &len) != 0) |
| 180 | 4986 status = RA_NOMATCH; |
| 7 | 4987 } |
| 4988 else | |
| 4989 { | |
| 4990 /* Messy situation: Need to compare between two | |
| 4991 * lines. */ | |
|
4901
56fbf60e9476
updated for version 7.3.1196
Bram Moolenaar <bram@vim.org>
parents:
4899
diff
changeset
|
4992 int r = match_with_backref( |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
4993 rex.reg_startpos[no].lnum, |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
4994 rex.reg_startpos[no].col, |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
4995 rex.reg_endpos[no].lnum, |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
4996 rex.reg_endpos[no].col, |
|
4899
4837fd61be52
updated for version 7.3.1195
Bram Moolenaar <bram@vim.org>
parents:
4891
diff
changeset
|
4997 &len); |
|
4901
56fbf60e9476
updated for version 7.3.1196
Bram Moolenaar <bram@vim.org>
parents:
4899
diff
changeset
|
4998 |
|
56fbf60e9476
updated for version 7.3.1196
Bram Moolenaar <bram@vim.org>
parents:
4899
diff
changeset
|
4999 if (r != RA_MATCH) |
|
56fbf60e9476
updated for version 7.3.1196
Bram Moolenaar <bram@vim.org>
parents:
4899
diff
changeset
|
5000 status = r; |
| 7 | 5001 } |
| 5002 } | |
| 5003 } | |
| 5004 | |
| 5005 /* Matched the backref, skip over it. */ | |
| 5006 reginput += len; | |
| 5007 } | |
| 5008 break; | |
| 5009 | |
| 5010 #ifdef FEAT_SYN_HL | |
| 5011 case ZREF + 1: | |
| 5012 case ZREF + 2: | |
| 5013 case ZREF + 3: | |
| 5014 case ZREF + 4: | |
| 5015 case ZREF + 5: | |
| 5016 case ZREF + 6: | |
| 5017 case ZREF + 7: | |
| 5018 case ZREF + 8: | |
| 5019 case ZREF + 9: | |
| 5020 { | |
| 5021 int len; | |
| 5022 | |
| 5023 cleanup_zsubexpr(); | |
| 5024 no = op - ZREF; | |
| 5025 if (re_extmatch_in != NULL | |
| 5026 && re_extmatch_in->matches[no] != NULL) | |
| 5027 { | |
| 5028 len = (int)STRLEN(re_extmatch_in->matches[no]); | |
| 5029 if (cstrncmp(re_extmatch_in->matches[no], | |
| 5030 reginput, &len) != 0) | |
| 180 | 5031 status = RA_NOMATCH; |
| 5032 else | |
| 5033 reginput += len; | |
| 7 | 5034 } |
| 5035 else | |
| 5036 { | |
| 5037 /* Backref was not set: Match an empty string. */ | |
| 5038 } | |
| 5039 } | |
| 5040 break; | |
| 5041 #endif | |
| 5042 | |
| 5043 case BRANCH: | |
| 5044 { | |
| 5045 if (OP(next) != BRANCH) /* No choice. */ | |
| 5046 next = OPERAND(scan); /* Avoid recursion. */ | |
| 5047 else | |
| 5048 { | |
| 270 | 5049 rp = regstack_push(RS_BRANCH, scan); |
| 180 | 5050 if (rp == NULL) |
| 5051 status = RA_FAIL; | |
| 5052 else | |
| 5053 status = RA_BREAK; /* rest is below */ | |
| 7 | 5054 } |
| 5055 } | |
| 5056 break; | |
| 5057 | |
| 5058 case BRACE_LIMITS: | |
| 5059 { | |
| 5060 if (OP(next) == BRACE_SIMPLE) | |
| 5061 { | |
| 5062 bl_minval = OPERAND_MIN(scan); | |
| 5063 bl_maxval = OPERAND_MAX(scan); | |
| 5064 } | |
| 5065 else if (OP(next) >= BRACE_COMPLEX | |
| 5066 && OP(next) < BRACE_COMPLEX + 10) | |
| 5067 { | |
| 5068 no = OP(next) - BRACE_COMPLEX; | |
| 5069 brace_min[no] = OPERAND_MIN(scan); | |
| 5070 brace_max[no] = OPERAND_MAX(scan); | |
| 5071 brace_count[no] = 0; | |
| 5072 } | |
| 5073 else | |
| 5074 { | |
|
10359
66f1b5bf3fa6
commit https://github.com/vim/vim/commit/95f096030ed1a8afea028f2ea295d6f6a70f466f
Christian Brabandt <cb@256bit.org>
parents:
10245
diff
changeset
|
5075 internal_error("BRACE_LIMITS"); |
| 180 | 5076 status = RA_FAIL; |
| 7 | 5077 } |
| 5078 } | |
| 5079 break; | |
| 5080 | |
| 5081 case BRACE_COMPLEX + 0: | |
| 5082 case BRACE_COMPLEX + 1: | |
| 5083 case BRACE_COMPLEX + 2: | |
| 5084 case BRACE_COMPLEX + 3: | |
| 5085 case BRACE_COMPLEX + 4: | |
| 5086 case BRACE_COMPLEX + 5: | |
| 5087 case BRACE_COMPLEX + 6: | |
| 5088 case BRACE_COMPLEX + 7: | |
| 5089 case BRACE_COMPLEX + 8: | |
| 5090 case BRACE_COMPLEX + 9: | |
| 5091 { | |
| 5092 no = op - BRACE_COMPLEX; | |
| 5093 ++brace_count[no]; | |
| 5094 | |
| 5095 /* If not matched enough times yet, try one more */ | |
| 5096 if (brace_count[no] <= (brace_min[no] <= brace_max[no] | |
| 180 | 5097 ? brace_min[no] : brace_max[no])) |
| 7 | 5098 { |
| 270 | 5099 rp = regstack_push(RS_BRCPLX_MORE, scan); |
| 180 | 5100 if (rp == NULL) |
| 5101 status = RA_FAIL; | |
| 5102 else | |
| 5103 { | |
| 5104 rp->rs_no = no; | |
| 233 | 5105 reg_save(&rp->rs_un.regsave, &backpos); |
| 180 | 5106 next = OPERAND(scan); |
| 5107 /* We continue and handle the result when done. */ | |
| 5108 } | |
| 5109 break; | |
| 7 | 5110 } |
| 5111 | |
| 5112 /* If matched enough times, may try matching some more */ | |
| 5113 if (brace_min[no] <= brace_max[no]) | |
| 5114 { | |
| 5115 /* Range is the normal way around, use longest match */ | |
| 5116 if (brace_count[no] <= brace_max[no]) | |
| 5117 { | |
| 270 | 5118 rp = regstack_push(RS_BRCPLX_LONG, scan); |
| 180 | 5119 if (rp == NULL) |
| 5120 status = RA_FAIL; | |
| 5121 else | |
| 5122 { | |
| 5123 rp->rs_no = no; | |
| 233 | 5124 reg_save(&rp->rs_un.regsave, &backpos); |
| 180 | 5125 next = OPERAND(scan); |
| 5126 /* We continue and handle the result when done. */ | |
| 5127 } | |
| 7 | 5128 } |
| 5129 } | |
| 5130 else | |
| 5131 { | |
| 5132 /* Range is backwards, use shortest match first */ | |
| 5133 if (brace_count[no] <= brace_min[no]) | |
| 5134 { | |
| 270 | 5135 rp = regstack_push(RS_BRCPLX_SHORT, scan); |
| 180 | 5136 if (rp == NULL) |
| 5137 status = RA_FAIL; | |
| 5138 else | |
| 5139 { | |
| 233 | 5140 reg_save(&rp->rs_un.regsave, &backpos); |
| 180 | 5141 /* We continue and handle the result when done. */ |
| 5142 } | |
| 7 | 5143 } |
| 5144 } | |
| 5145 } | |
| 5146 break; | |
| 5147 | |
| 5148 case BRACE_SIMPLE: | |
| 5149 case STAR: | |
| 5150 case PLUS: | |
| 5151 { | |
| 180 | 5152 regstar_T rst; |
| 7 | 5153 |
| 5154 /* | |
| 5155 * Lookahead to avoid useless match attempts when we know | |
| 5156 * what character comes next. | |
| 5157 */ | |
| 5158 if (OP(next) == EXACTLY) | |
| 5159 { | |
| 180 | 5160 rst.nextb = *OPERAND(next); |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
5161 if (rex.reg_ic) |
| 7 | 5162 { |
| 1347 | 5163 if (MB_ISUPPER(rst.nextb)) |
| 5164 rst.nextb_ic = MB_TOLOWER(rst.nextb); | |
| 7 | 5165 else |
| 1347 | 5166 rst.nextb_ic = MB_TOUPPER(rst.nextb); |
| 7 | 5167 } |
| 5168 else | |
| 180 | 5169 rst.nextb_ic = rst.nextb; |
| 7 | 5170 } |
| 5171 else | |
| 5172 { | |
| 180 | 5173 rst.nextb = NUL; |
| 5174 rst.nextb_ic = NUL; | |
| 7 | 5175 } |
| 5176 if (op != BRACE_SIMPLE) | |
| 5177 { | |
| 180 | 5178 rst.minval = (op == STAR) ? 0 : 1; |
| 5179 rst.maxval = MAX_LIMIT; | |
| 7 | 5180 } |
| 5181 else | |
| 5182 { | |
| 180 | 5183 rst.minval = bl_minval; |
| 5184 rst.maxval = bl_maxval; | |
| 7 | 5185 } |
| 5186 | |
| 5187 /* | |
| 5188 * When maxval > minval, try matching as much as possible, up | |
| 5189 * to maxval. When maxval < minval, try matching at least the | |
| 5190 * minimal number (since the range is backwards, that's also | |
| 5191 * maxval!). | |
| 5192 */ | |
| 180 | 5193 rst.count = regrepeat(OPERAND(scan), rst.maxval); |
| 7 | 5194 if (got_int) |
| 180 | 5195 { |
| 5196 status = RA_FAIL; | |
| 5197 break; | |
| 5198 } | |
| 5199 if (rst.minval <= rst.maxval | |
| 5200 ? rst.count >= rst.minval : rst.count >= rst.maxval) | |
| 7 | 5201 { |
| 180 | 5202 /* It could match. Prepare for trying to match what |
| 5203 * follows. The code is below. Parameters are stored in | |
| 5204 * a regstar_T on the regstack. */ | |
| 212 | 5205 if ((long)((unsigned)regstack.ga_len >> 10) >= p_mmp) |
| 189 | 5206 { |
| 5207 EMSG(_(e_maxmempat)); | |
| 5208 status = RA_FAIL; | |
| 5209 } | |
| 5210 else if (ga_grow(®stack, sizeof(regstar_T)) == FAIL) | |
| 180 | 5211 status = RA_FAIL; |
| 5212 else | |
| 7 | 5213 { |
| 180 | 5214 regstack.ga_len += sizeof(regstar_T); |
| 270 | 5215 rp = regstack_push(rst.minval <= rst.maxval |
| 233 | 5216 ? RS_STAR_LONG : RS_STAR_SHORT, scan); |
| 180 | 5217 if (rp == NULL) |
| 5218 status = RA_FAIL; | |
| 5219 else | |
| 7 | 5220 { |
| 180 | 5221 *(((regstar_T *)rp) - 1) = rst; |
| 5222 status = RA_BREAK; /* skip the restore bits */ | |
| 7 | 5223 } |
| 5224 } | |
| 5225 } | |
| 5226 else | |
| 180 | 5227 status = RA_NOMATCH; |
| 5228 | |
| 7 | 5229 } |
| 180 | 5230 break; |
| 7 | 5231 |
| 5232 case NOMATCH: | |
| 5233 case MATCH: | |
| 5234 case SUBPAT: | |
| 270 | 5235 rp = regstack_push(RS_NOMATCH, scan); |
| 180 | 5236 if (rp == NULL) |
| 5237 status = RA_FAIL; | |
| 5238 else | |
| 7 | 5239 { |
| 180 | 5240 rp->rs_no = op; |
| 233 | 5241 reg_save(&rp->rs_un.regsave, &backpos); |
| 180 | 5242 next = OPERAND(scan); |
| 5243 /* We continue and handle the result when done. */ | |
| 7 | 5244 } |
| 5245 break; | |
| 5246 | |
| 5247 case BEHIND: | |
| 5248 case NOBEHIND: | |
| 180 | 5249 /* Need a bit of room to store extra positions. */ |
| 212 | 5250 if ((long)((unsigned)regstack.ga_len >> 10) >= p_mmp) |
| 189 | 5251 { |
| 5252 EMSG(_(e_maxmempat)); | |
| 5253 status = RA_FAIL; | |
| 5254 } | |
| 5255 else if (ga_grow(®stack, sizeof(regbehind_T)) == FAIL) | |
| 180 | 5256 status = RA_FAIL; |
| 5257 else | |
| 7 | 5258 { |
| 180 | 5259 regstack.ga_len += sizeof(regbehind_T); |
| 270 | 5260 rp = regstack_push(RS_BEHIND1, scan); |
| 180 | 5261 if (rp == NULL) |
| 5262 status = RA_FAIL; | |
| 5263 else | |
| 7 | 5264 { |
| 1579 | 5265 /* Need to save the subexpr to be able to restore them |
| 5266 * when there is a match but we don't use it. */ | |
| 5267 save_subexpr(((regbehind_T *)rp) - 1); | |
| 5268 | |
| 180 | 5269 rp->rs_no = op; |
| 233 | 5270 reg_save(&rp->rs_un.regsave, &backpos); |
| 180 | 5271 /* First try if what follows matches. If it does then we |
| 5272 * check the behind match by looping. */ | |
| 7 | 5273 } |
| 5274 } | |
| 180 | 5275 break; |
| 7 | 5276 |
| 5277 case BHPOS: | |
| 5278 if (REG_MULTI) | |
| 5279 { | |
| 5280 if (behind_pos.rs_u.pos.col != (colnr_T)(reginput - regline) | |
| 5281 || behind_pos.rs_u.pos.lnum != reglnum) | |
| 180 | 5282 status = RA_NOMATCH; |
| 7 | 5283 } |
| 5284 else if (behind_pos.rs_u.ptr != reginput) | |
| 180 | 5285 status = RA_NOMATCH; |
| 7 | 5286 break; |
| 5287 | |
| 5288 case NEWL: | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
5289 if ((c != NUL || !REG_MULTI || reglnum > rex.reg_maxline |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
5290 || rex.reg_line_lbr) |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
5291 && (c != '\n' || !rex.reg_line_lbr)) |
| 180 | 5292 status = RA_NOMATCH; |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
5293 else if (rex.reg_line_lbr) |
| 7 | 5294 ADVANCE_REGINPUT(); |
| 5295 else | |
| 5296 reg_nextline(); | |
| 5297 break; | |
| 5298 | |
| 5299 case END: | |
| 180 | 5300 status = RA_MATCH; /* Success! */ |
| 5301 break; | |
| 7 | 5302 |
| 5303 default: | |
| 5304 EMSG(_(e_re_corr)); | |
| 5305 #ifdef DEBUG | |
| 5306 printf("Illegal op code %d\n", op); | |
| 5307 #endif | |
| 180 | 5308 status = RA_FAIL; |
| 5309 break; | |
| 7 | 5310 } |
| 5311 } | |
| 5312 | |
| 180 | 5313 /* If we can't continue sequentially, break the inner loop. */ |
| 5314 if (status != RA_CONT) | |
| 5315 break; | |
| 5316 | |
| 5317 /* Continue in inner loop, advance to next item. */ | |
| 7 | 5318 scan = next; |
| 180 | 5319 |
| 5320 } /* end of inner loop */ | |
| 7 | 5321 |
| 5322 /* | |
| 180 | 5323 * If there is something on the regstack execute the code for the state. |
| 233 | 5324 * If the state is popped then loop and use the older state. |
| 7 | 5325 */ |
| 180 | 5326 while (regstack.ga_len > 0 && status != RA_FAIL) |
| 5327 { | |
| 5328 rp = (regitem_T *)((char *)regstack.ga_data + regstack.ga_len) - 1; | |
| 5329 switch (rp->rs_state) | |
| 5330 { | |
| 5331 case RS_NOPEN: | |
| 5332 /* Result is passed on as-is, simply pop the state. */ | |
| 270 | 5333 regstack_pop(&scan); |
| 180 | 5334 break; |
| 5335 | |
| 5336 case RS_MOPEN: | |
| 5337 /* Pop the state. Restore pointers when there is no match. */ | |
| 5338 if (status == RA_NOMATCH) | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
5339 restore_se(&rp->rs_un.sesave, &rex.reg_startpos[rp->rs_no], |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
5340 &rex.reg_startp[rp->rs_no]); |
| 270 | 5341 regstack_pop(&scan); |
| 180 | 5342 break; |
| 5343 | |
| 5344 #ifdef FEAT_SYN_HL | |
| 5345 case RS_ZOPEN: | |
| 5346 /* Pop the state. Restore pointers when there is no match. */ | |
| 5347 if (status == RA_NOMATCH) | |
| 5348 restore_se(&rp->rs_un.sesave, ®_startzpos[rp->rs_no], | |
| 5349 ®_startzp[rp->rs_no]); | |
| 270 | 5350 regstack_pop(&scan); |
| 180 | 5351 break; |
| 5352 #endif | |
| 5353 | |
| 5354 case RS_MCLOSE: | |
| 5355 /* Pop the state. Restore pointers when there is no match. */ | |
| 5356 if (status == RA_NOMATCH) | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
5357 restore_se(&rp->rs_un.sesave, &rex.reg_endpos[rp->rs_no], |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
5358 &rex.reg_endp[rp->rs_no]); |
| 270 | 5359 regstack_pop(&scan); |
| 180 | 5360 break; |
| 5361 | |
| 5362 #ifdef FEAT_SYN_HL | |
| 5363 case RS_ZCLOSE: | |
| 5364 /* Pop the state. Restore pointers when there is no match. */ | |
| 5365 if (status == RA_NOMATCH) | |
| 5366 restore_se(&rp->rs_un.sesave, ®_endzpos[rp->rs_no], | |
| 5367 ®_endzp[rp->rs_no]); | |
| 270 | 5368 regstack_pop(&scan); |
| 180 | 5369 break; |
| 5370 #endif | |
| 5371 | |
| 5372 case RS_BRANCH: | |
| 5373 if (status == RA_MATCH) | |
| 5374 /* this branch matched, use it */ | |
| 270 | 5375 regstack_pop(&scan); |
| 180 | 5376 else |
| 5377 { | |
| 5378 if (status != RA_BREAK) | |
| 5379 { | |
| 5380 /* After a non-matching branch: try next one. */ | |
| 233 | 5381 reg_restore(&rp->rs_un.regsave, &backpos); |
| 180 | 5382 scan = rp->rs_scan; |
| 5383 } | |
| 5384 if (scan == NULL || OP(scan) != BRANCH) | |
| 5385 { | |
| 5386 /* no more branches, didn't find a match */ | |
| 5387 status = RA_NOMATCH; | |
| 270 | 5388 regstack_pop(&scan); |
| 180 | 5389 } |
| 5390 else | |
| 5391 { | |
| 5392 /* Prepare to try a branch. */ | |
| 5393 rp->rs_scan = regnext(scan); | |
| 233 | 5394 reg_save(&rp->rs_un.regsave, &backpos); |
| 180 | 5395 scan = OPERAND(scan); |
| 5396 } | |
| 5397 } | |
| 5398 break; | |
| 5399 | |
| 5400 case RS_BRCPLX_MORE: | |
| 5401 /* Pop the state. Restore pointers when there is no match. */ | |
| 5402 if (status == RA_NOMATCH) | |
| 5403 { | |
| 233 | 5404 reg_restore(&rp->rs_un.regsave, &backpos); |
| 180 | 5405 --brace_count[rp->rs_no]; /* decrement match count */ |
| 5406 } | |
| 270 | 5407 regstack_pop(&scan); |
| 180 | 5408 break; |
| 5409 | |
| 5410 case RS_BRCPLX_LONG: | |
| 5411 /* Pop the state. Restore pointers when there is no match. */ | |
| 5412 if (status == RA_NOMATCH) | |
| 5413 { | |
| 5414 /* There was no match, but we did find enough matches. */ | |
| 233 | 5415 reg_restore(&rp->rs_un.regsave, &backpos); |
| 180 | 5416 --brace_count[rp->rs_no]; |
| 5417 /* continue with the items after "\{}" */ | |
| 5418 status = RA_CONT; | |
| 5419 } | |
| 270 | 5420 regstack_pop(&scan); |
| 180 | 5421 if (status == RA_CONT) |
| 5422 scan = regnext(scan); | |
| 5423 break; | |
| 5424 | |
| 5425 case RS_BRCPLX_SHORT: | |
| 5426 /* Pop the state. Restore pointers when there is no match. */ | |
| 5427 if (status == RA_NOMATCH) | |
| 5428 /* There was no match, try to match one more item. */ | |
| 233 | 5429 reg_restore(&rp->rs_un.regsave, &backpos); |
| 270 | 5430 regstack_pop(&scan); |
| 180 | 5431 if (status == RA_NOMATCH) |
| 5432 { | |
| 5433 scan = OPERAND(scan); | |
| 5434 status = RA_CONT; | |
| 5435 } | |
| 5436 break; | |
| 5437 | |
| 5438 case RS_NOMATCH: | |
| 5439 /* Pop the state. If the operand matches for NOMATCH or | |
| 5440 * doesn't match for MATCH/SUBPAT, we fail. Otherwise backup, | |
| 5441 * except for SUBPAT, and continue with the next item. */ | |
| 5442 if (status == (rp->rs_no == NOMATCH ? RA_MATCH : RA_NOMATCH)) | |
| 5443 status = RA_NOMATCH; | |
| 5444 else | |
| 5445 { | |
| 5446 status = RA_CONT; | |
| 233 | 5447 if (rp->rs_no != SUBPAT) /* zero-width */ |
| 5448 reg_restore(&rp->rs_un.regsave, &backpos); | |
| 180 | 5449 } |
| 270 | 5450 regstack_pop(&scan); |
| 180 | 5451 if (status == RA_CONT) |
| 5452 scan = regnext(scan); | |
| 5453 break; | |
| 5454 | |
| 5455 case RS_BEHIND1: | |
| 5456 if (status == RA_NOMATCH) | |
| 5457 { | |
| 270 | 5458 regstack_pop(&scan); |
| 180 | 5459 regstack.ga_len -= sizeof(regbehind_T); |
| 5460 } | |
| 5461 else | |
| 5462 { | |
| 5463 /* The stuff after BEHIND/NOBEHIND matches. Now try if | |
| 5464 * the behind part does (not) match before the current | |
| 5465 * position in the input. This must be done at every | |
| 5466 * position in the input and checking if the match ends at | |
| 5467 * the current position. */ | |
| 5468 | |
| 5469 /* save the position after the found match for next */ | |
| 233 | 5470 reg_save(&(((regbehind_T *)rp) - 1)->save_after, &backpos); |
| 180 | 5471 |
|
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parents:
4505
diff
changeset
|
5472 /* Start looking for a match with operand at the current |
| 1209 | 5473 * position. Go back one character until we find the |
| 180 | 5474 * result, hitting the start of the line or the previous |
| 5475 * line (for multi-line matching). | |
| 5476 * Set behind_pos to where the match should end, BHPOS | |
| 5477 * will match it. Save the current value. */ | |
| 5478 (((regbehind_T *)rp) - 1)->save_behind = behind_pos; | |
| 5479 behind_pos = rp->rs_un.regsave; | |
| 5480 | |
| 5481 rp->rs_state = RS_BEHIND2; | |
| 5482 | |
| 233 | 5483 reg_restore(&rp->rs_un.regsave, &backpos); |
|
4579
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parents:
4505
diff
changeset
|
5484 scan = OPERAND(rp->rs_scan) + 4; |
| 180 | 5485 } |
| 5486 break; | |
| 5487 | |
| 5488 case RS_BEHIND2: | |
| 5489 /* | |
| 5490 * Looping for BEHIND / NOBEHIND match. | |
| 5491 */ | |
| 5492 if (status == RA_MATCH && reg_save_equal(&behind_pos)) | |
| 5493 { | |
| 5494 /* found a match that ends where "next" started */ | |
| 5495 behind_pos = (((regbehind_T *)rp) - 1)->save_behind; | |
| 5496 if (rp->rs_no == BEHIND) | |
| 233 | 5497 reg_restore(&(((regbehind_T *)rp) - 1)->save_after, |
| 5498 &backpos); | |
| 180 | 5499 else |
| 1579 | 5500 { |
| 5501 /* But we didn't want a match. Need to restore the | |
| 5502 * subexpr, because what follows matched, so they have | |
| 5503 * been set. */ | |
| 180 | 5504 status = RA_NOMATCH; |
| 1579 | 5505 restore_subexpr(((regbehind_T *)rp) - 1); |
| 5506 } | |
| 270 | 5507 regstack_pop(&scan); |
| 180 | 5508 regstack.ga_len -= sizeof(regbehind_T); |
| 5509 } | |
| 5510 else | |
| 5511 { | |
|
4579
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parents:
4505
diff
changeset
|
5512 long limit; |
|
7a2be4a39423
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parents:
4505
diff
changeset
|
5513 |
| 1579 | 5514 /* No match or a match that doesn't end where we want it: Go |
| 5515 * back one character. May go to previous line once. */ | |
| 180 | 5516 no = OK; |
|
4579
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parents:
4505
diff
changeset
|
5517 limit = OPERAND_MIN(rp->rs_scan); |
| 180 | 5518 if (REG_MULTI) |
| 5519 { | |
|
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2f51ee8825db
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parents:
4679
diff
changeset
|
5520 if (limit > 0 |
|
2f51ee8825db
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parents:
4679
diff
changeset
|
5521 && ((rp->rs_un.regsave.rs_u.pos.lnum |
|
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
5522 < behind_pos.rs_u.pos.lnum |
|
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
5523 ? (colnr_T)STRLEN(regline) |
|
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
5524 : behind_pos.rs_u.pos.col) |
|
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
5525 - rp->rs_un.regsave.rs_u.pos.col >= limit)) |
|
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
5526 no = FAIL; |
|
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
5527 else if (rp->rs_un.regsave.rs_u.pos.col == 0) |
| 180 | 5528 { |
| 5529 if (rp->rs_un.regsave.rs_u.pos.lnum | |
| 5530 < behind_pos.rs_u.pos.lnum | |
| 5531 || reg_getline( | |
| 5532 --rp->rs_un.regsave.rs_u.pos.lnum) | |
| 5533 == NULL) | |
| 5534 no = FAIL; | |
| 5535 else | |
| 5536 { | |
| 233 | 5537 reg_restore(&rp->rs_un.regsave, &backpos); |
| 180 | 5538 rp->rs_un.regsave.rs_u.pos.col = |
| 5539 (colnr_T)STRLEN(regline); | |
| 5540 } | |
| 5541 } | |
| 5542 else | |
|
4579
7a2be4a39423
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Bram Moolenaar <bram@vim.org>
parents:
4505
diff
changeset
|
5543 { |
| 4176 | 5544 #ifdef FEAT_MBYTE |
|
4579
7a2be4a39423
updated for version 7.3.1037
Bram Moolenaar <bram@vim.org>
parents:
4505
diff
changeset
|
5545 if (has_mbyte) |
|
7a2be4a39423
updated for version 7.3.1037
Bram Moolenaar <bram@vim.org>
parents:
4505
diff
changeset
|
5546 rp->rs_un.regsave.rs_u.pos.col -= |
|
7a2be4a39423
updated for version 7.3.1037
Bram Moolenaar <bram@vim.org>
parents:
4505
diff
changeset
|
5547 (*mb_head_off)(regline, regline |
| 4176 | 5548 + rp->rs_un.regsave.rs_u.pos.col - 1) + 1; |
|
4579
7a2be4a39423
updated for version 7.3.1037
Bram Moolenaar <bram@vim.org>
parents:
4505
diff
changeset
|
5549 else |
|
7a2be4a39423
updated for version 7.3.1037
Bram Moolenaar <bram@vim.org>
parents:
4505
diff
changeset
|
5550 #endif |
|
7a2be4a39423
updated for version 7.3.1037
Bram Moolenaar <bram@vim.org>
parents:
4505
diff
changeset
|
5551 --rp->rs_un.regsave.rs_u.pos.col; |
|
7a2be4a39423
updated for version 7.3.1037
Bram Moolenaar <bram@vim.org>
parents:
4505
diff
changeset
|
5552 } |
| 180 | 5553 } |
| 5554 else | |
| 5555 { | |
| 5556 if (rp->rs_un.regsave.rs_u.ptr == regline) | |
| 5557 no = FAIL; | |
| 5558 else | |
|
4579
7a2be4a39423
updated for version 7.3.1037
Bram Moolenaar <bram@vim.org>
parents:
4505
diff
changeset
|
5559 { |
|
7a2be4a39423
updated for version 7.3.1037
Bram Moolenaar <bram@vim.org>
parents:
4505
diff
changeset
|
5560 mb_ptr_back(regline, rp->rs_un.regsave.rs_u.ptr); |
|
7a2be4a39423
updated for version 7.3.1037
Bram Moolenaar <bram@vim.org>
parents:
4505
diff
changeset
|
5561 if (limit > 0 && (long)(behind_pos.rs_u.ptr |
|
7a2be4a39423
updated for version 7.3.1037
Bram Moolenaar <bram@vim.org>
parents:
4505
diff
changeset
|
5562 - rp->rs_un.regsave.rs_u.ptr) > limit) |
|
7a2be4a39423
updated for version 7.3.1037
Bram Moolenaar <bram@vim.org>
parents:
4505
diff
changeset
|
5563 no = FAIL; |
|
7a2be4a39423
updated for version 7.3.1037
Bram Moolenaar <bram@vim.org>
parents:
4505
diff
changeset
|
5564 } |
| 180 | 5565 } |
| 5566 if (no == OK) | |
| 5567 { | |
| 5568 /* Advanced, prepare for finding match again. */ | |
| 233 | 5569 reg_restore(&rp->rs_un.regsave, &backpos); |
|
4579
7a2be4a39423
updated for version 7.3.1037
Bram Moolenaar <bram@vim.org>
parents:
4505
diff
changeset
|
5570 scan = OPERAND(rp->rs_scan) + 4; |
| 1579 | 5571 if (status == RA_MATCH) |
| 5572 { | |
| 5573 /* We did match, so subexpr may have been changed, | |
| 5574 * need to restore them for the next try. */ | |
| 5575 status = RA_NOMATCH; | |
| 5576 restore_subexpr(((regbehind_T *)rp) - 1); | |
| 5577 } | |
| 180 | 5578 } |
| 5579 else | |
| 5580 { | |
| 5581 /* Can't advance. For NOBEHIND that's a match. */ | |
| 5582 behind_pos = (((regbehind_T *)rp) - 1)->save_behind; | |
| 5583 if (rp->rs_no == NOBEHIND) | |
| 5584 { | |
| 233 | 5585 reg_restore(&(((regbehind_T *)rp) - 1)->save_after, |
| 5586 &backpos); | |
| 180 | 5587 status = RA_MATCH; |
| 5588 } | |
| 5589 else | |
| 1579 | 5590 { |
| 5591 /* We do want a proper match. Need to restore the | |
| 5592 * subexpr if we had a match, because they may have | |
| 5593 * been set. */ | |
| 5594 if (status == RA_MATCH) | |
| 5595 { | |
| 5596 status = RA_NOMATCH; | |
| 5597 restore_subexpr(((regbehind_T *)rp) - 1); | |
| 5598 } | |
| 5599 } | |
| 270 | 5600 regstack_pop(&scan); |
| 180 | 5601 regstack.ga_len -= sizeof(regbehind_T); |
| 5602 } | |
| 5603 } | |
| 5604 break; | |
| 5605 | |
| 5606 case RS_STAR_LONG: | |
| 5607 case RS_STAR_SHORT: | |
| 5608 { | |
| 5609 regstar_T *rst = ((regstar_T *)rp) - 1; | |
| 5610 | |
| 5611 if (status == RA_MATCH) | |
| 5612 { | |
| 270 | 5613 regstack_pop(&scan); |
| 180 | 5614 regstack.ga_len -= sizeof(regstar_T); |
| 5615 break; | |
| 5616 } | |
| 5617 | |
| 5618 /* Tried once already, restore input pointers. */ | |
| 5619 if (status != RA_BREAK) | |
| 233 | 5620 reg_restore(&rp->rs_un.regsave, &backpos); |
| 180 | 5621 |
| 5622 /* Repeat until we found a position where it could match. */ | |
| 5623 for (;;) | |
| 5624 { | |
| 5625 if (status != RA_BREAK) | |
| 5626 { | |
| 5627 /* Tried first position already, advance. */ | |
| 5628 if (rp->rs_state == RS_STAR_LONG) | |
| 5629 { | |
| 685 | 5630 /* Trying for longest match, but couldn't or |
| 5631 * didn't match -- back up one char. */ | |
| 180 | 5632 if (--rst->count < rst->minval) |
| 5633 break; | |
| 5634 if (reginput == regline) | |
| 5635 { | |
| 5636 /* backup to last char of previous line */ | |
| 5637 --reglnum; | |
| 5638 regline = reg_getline(reglnum); | |
| 5639 /* Just in case regrepeat() didn't count | |
| 5640 * right. */ | |
| 5641 if (regline == NULL) | |
| 5642 break; | |
| 5643 reginput = regline + STRLEN(regline); | |
| 5644 fast_breakcheck(); | |
| 5645 } | |
| 5646 else | |
| 5647 mb_ptr_back(regline, reginput); | |
| 5648 } | |
| 5649 else | |
| 5650 { | |
| 5651 /* Range is backwards, use shortest match first. | |
| 5652 * Careful: maxval and minval are exchanged! | |
| 5653 * Couldn't or didn't match: try advancing one | |
| 5654 * char. */ | |
| 5655 if (rst->count == rst->minval | |
| 5656 || regrepeat(OPERAND(rp->rs_scan), 1L) == 0) | |
| 5657 break; | |
| 5658 ++rst->count; | |
| 5659 } | |
| 5660 if (got_int) | |
| 5661 break; | |
| 5662 } | |
| 5663 else | |
| 5664 status = RA_NOMATCH; | |
| 5665 | |
| 5666 /* If it could match, try it. */ | |
| 5667 if (rst->nextb == NUL || *reginput == rst->nextb | |
| 5668 || *reginput == rst->nextb_ic) | |
| 5669 { | |
| 233 | 5670 reg_save(&rp->rs_un.regsave, &backpos); |
| 180 | 5671 scan = regnext(rp->rs_scan); |
| 5672 status = RA_CONT; | |
| 5673 break; | |
| 5674 } | |
| 5675 } | |
| 5676 if (status != RA_CONT) | |
| 5677 { | |
| 5678 /* Failed. */ | |
| 270 | 5679 regstack_pop(&scan); |
| 180 | 5680 regstack.ga_len -= sizeof(regstar_T); |
| 5681 status = RA_NOMATCH; | |
| 5682 } | |
| 5683 } | |
| 5684 break; | |
| 5685 } | |
| 5686 | |
| 685 | 5687 /* If we want to continue the inner loop or didn't pop a state |
| 5688 * continue matching loop */ | |
| 180 | 5689 if (status == RA_CONT || rp == (regitem_T *) |
| 5690 ((char *)regstack.ga_data + regstack.ga_len) - 1) | |
| 5691 break; | |
| 5692 } | |
| 5693 | |
| 189 | 5694 /* May need to continue with the inner loop, starting at "scan". */ |
| 180 | 5695 if (status == RA_CONT) |
| 5696 continue; | |
| 5697 | |
| 5698 /* | |
| 5699 * If the regstack is empty or something failed we are done. | |
| 5700 */ | |
| 5701 if (regstack.ga_len == 0 || status == RA_FAIL) | |
| 5702 { | |
| 5703 if (scan == NULL) | |
| 5704 { | |
| 5705 /* | |
| 5706 * We get here only if there's trouble -- normally "case END" is | |
| 5707 * the terminating point. | |
| 5708 */ | |
| 5709 EMSG(_(e_re_corr)); | |
| 7 | 5710 #ifdef DEBUG |
| 180 | 5711 printf("Premature EOL\n"); |
| 7 | 5712 #endif |
| 180 | 5713 } |
| 189 | 5714 if (status == RA_FAIL) |
| 5715 got_int = TRUE; | |
| 180 | 5716 return (status == RA_MATCH); |
| 5717 } | |
| 5718 | |
| 5719 } /* End of loop until the regstack is empty. */ | |
| 5720 | |
| 5721 /* NOTREACHED */ | |
| 5722 } | |
| 5723 | |
| 5724 /* | |
| 5725 * Push an item onto the regstack. | |
| 5726 * Returns pointer to new item. Returns NULL when out of memory. | |
| 5727 */ | |
| 5728 static regitem_T * | |
|
7833
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
5729 regstack_push(regstate_T state, char_u *scan) |
| 180 | 5730 { |
| 5731 regitem_T *rp; | |
| 5732 | |
| 270 | 5733 if ((long)((unsigned)regstack.ga_len >> 10) >= p_mmp) |
| 189 | 5734 { |
| 5735 EMSG(_(e_maxmempat)); | |
| 5736 return NULL; | |
| 5737 } | |
| 270 | 5738 if (ga_grow(®stack, sizeof(regitem_T)) == FAIL) |
| 180 | 5739 return NULL; |
| 5740 | |
| 270 | 5741 rp = (regitem_T *)((char *)regstack.ga_data + regstack.ga_len); |
| 180 | 5742 rp->rs_state = state; |
| 5743 rp->rs_scan = scan; | |
| 5744 | |
| 270 | 5745 regstack.ga_len += sizeof(regitem_T); |
| 180 | 5746 return rp; |
| 5747 } | |
| 5748 | |
| 5749 /* | |
| 5750 * Pop an item from the regstack. | |
| 5751 */ | |
| 5752 static void | |
|
7833
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
5753 regstack_pop(char_u **scan) |
| 180 | 5754 { |
| 5755 regitem_T *rp; | |
| 5756 | |
| 270 | 5757 rp = (regitem_T *)((char *)regstack.ga_data + regstack.ga_len) - 1; |
| 180 | 5758 *scan = rp->rs_scan; |
| 5759 | |
| 270 | 5760 regstack.ga_len -= sizeof(regitem_T); |
| 7 | 5761 } |
| 5762 | |
| 5763 /* | |
| 5764 * regrepeat - repeatedly match something simple, return how many. | |
| 5765 * Advances reginput (and reglnum) to just after the matched chars. | |
| 5766 */ | |
| 5767 static int | |
|
7833
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
5768 regrepeat( |
|
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
5769 char_u *p, |
|
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
5770 long maxcount) /* maximum number of matches allowed */ |
| 7 | 5771 { |
| 5772 long count = 0; | |
| 5773 char_u *scan; | |
| 5774 char_u *opnd; | |
| 5775 int mask; | |
| 5776 int testval = 0; | |
| 5777 | |
| 5778 scan = reginput; /* Make local copy of reginput for speed. */ | |
| 5779 opnd = OPERAND(p); | |
| 5780 switch (OP(p)) | |
| 5781 { | |
| 5782 case ANY: | |
| 5783 case ANY + ADD_NL: | |
| 5784 while (count < maxcount) | |
| 5785 { | |
| 5786 /* Matching anything means we continue until end-of-line (or | |
| 5787 * end-of-file for ANY + ADD_NL), only limited by maxcount. */ | |
| 5788 while (*scan != NUL && count < maxcount) | |
| 5789 { | |
| 5790 ++count; | |
| 39 | 5791 mb_ptr_adv(scan); |
| 7 | 5792 } |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
5793 if (!REG_MULTI || !WITH_NL(OP(p)) || reglnum > rex.reg_maxline |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
5794 || rex.reg_line_lbr || count == maxcount) |
| 7 | 5795 break; |
| 5796 ++count; /* count the line-break */ | |
| 5797 reg_nextline(); | |
| 5798 scan = reginput; | |
| 5799 if (got_int) | |
| 5800 break; | |
| 5801 } | |
| 5802 break; | |
| 5803 | |
| 5804 case IDENT: | |
| 5805 case IDENT + ADD_NL: | |
| 5806 testval = TRUE; | |
| 5807 /*FALLTHROUGH*/ | |
| 5808 case SIDENT: | |
| 5809 case SIDENT + ADD_NL: | |
| 5810 while (count < maxcount) | |
| 5811 { | |
| 4466 | 5812 if (vim_isIDc(PTR2CHAR(scan)) && (testval || !VIM_ISDIGIT(*scan))) |
| 7 | 5813 { |
| 39 | 5814 mb_ptr_adv(scan); |
| 7 | 5815 } |
| 5816 else if (*scan == NUL) | |
| 5817 { | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
5818 if (!REG_MULTI || !WITH_NL(OP(p)) || reglnum > rex.reg_maxline |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
5819 || rex.reg_line_lbr) |
| 7 | 5820 break; |
| 5821 reg_nextline(); | |
| 5822 scan = reginput; | |
| 5823 if (got_int) | |
| 5824 break; | |
| 5825 } | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
5826 else if (rex.reg_line_lbr && *scan == '\n' && WITH_NL(OP(p))) |
| 7 | 5827 ++scan; |
| 5828 else | |
| 5829 break; | |
| 5830 ++count; | |
| 5831 } | |
| 5832 break; | |
| 5833 | |
| 5834 case KWORD: | |
| 5835 case KWORD + ADD_NL: | |
| 5836 testval = TRUE; | |
| 5837 /*FALLTHROUGH*/ | |
| 5838 case SKWORD: | |
| 5839 case SKWORD + ADD_NL: | |
| 5840 while (count < maxcount) | |
| 5841 { | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
5842 if (vim_iswordp_buf(scan, rex.reg_buf) |
| 4069 | 5843 && (testval || !VIM_ISDIGIT(*scan))) |
| 7 | 5844 { |
| 39 | 5845 mb_ptr_adv(scan); |
| 7 | 5846 } |
| 5847 else if (*scan == NUL) | |
| 5848 { | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
5849 if (!REG_MULTI || !WITH_NL(OP(p)) || reglnum > rex.reg_maxline |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
5850 || rex.reg_line_lbr) |
| 7 | 5851 break; |
| 5852 reg_nextline(); | |
| 5853 scan = reginput; | |
| 5854 if (got_int) | |
| 5855 break; | |
| 5856 } | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
5857 else if (rex.reg_line_lbr && *scan == '\n' && WITH_NL(OP(p))) |
| 7 | 5858 ++scan; |
| 5859 else | |
| 5860 break; | |
| 5861 ++count; | |
| 5862 } | |
| 5863 break; | |
| 5864 | |
| 5865 case FNAME: | |
| 5866 case FNAME + ADD_NL: | |
| 5867 testval = TRUE; | |
| 5868 /*FALLTHROUGH*/ | |
| 5869 case SFNAME: | |
| 5870 case SFNAME + ADD_NL: | |
| 5871 while (count < maxcount) | |
| 5872 { | |
| 4466 | 5873 if (vim_isfilec(PTR2CHAR(scan)) && (testval || !VIM_ISDIGIT(*scan))) |
| 7 | 5874 { |
| 39 | 5875 mb_ptr_adv(scan); |
| 7 | 5876 } |
| 5877 else if (*scan == NUL) | |
| 5878 { | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
5879 if (!REG_MULTI || !WITH_NL(OP(p)) || reglnum > rex.reg_maxline |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
5880 || rex.reg_line_lbr) |
| 7 | 5881 break; |
| 5882 reg_nextline(); | |
| 5883 scan = reginput; | |
| 5884 if (got_int) | |
| 5885 break; | |
| 5886 } | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
5887 else if (rex.reg_line_lbr && *scan == '\n' && WITH_NL(OP(p))) |
| 7 | 5888 ++scan; |
| 5889 else | |
| 5890 break; | |
| 5891 ++count; | |
| 5892 } | |
| 5893 break; | |
| 5894 | |
| 5895 case PRINT: | |
| 5896 case PRINT + ADD_NL: | |
| 5897 testval = TRUE; | |
| 5898 /*FALLTHROUGH*/ | |
| 5899 case SPRINT: | |
| 5900 case SPRINT + ADD_NL: | |
| 5901 while (count < maxcount) | |
| 5902 { | |
| 5903 if (*scan == NUL) | |
| 5904 { | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
5905 if (!REG_MULTI || !WITH_NL(OP(p)) || reglnum > rex.reg_maxline |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
5906 || rex.reg_line_lbr) |
| 7 | 5907 break; |
| 5908 reg_nextline(); | |
| 5909 scan = reginput; | |
| 5910 if (got_int) | |
| 5911 break; | |
| 5912 } | |
|
5221
9982ec574beb
updated for version 7.4a.036
Bram Moolenaar <bram@vim.org>
parents:
4901
diff
changeset
|
5913 else if (vim_isprintc(PTR2CHAR(scan)) == 1 |
|
9982ec574beb
updated for version 7.4a.036
Bram Moolenaar <bram@vim.org>
parents:
4901
diff
changeset
|
5914 && (testval || !VIM_ISDIGIT(*scan))) |
| 7 | 5915 { |
| 39 | 5916 mb_ptr_adv(scan); |
| 7 | 5917 } |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
5918 else if (rex.reg_line_lbr && *scan == '\n' && WITH_NL(OP(p))) |
| 7 | 5919 ++scan; |
| 5920 else | |
| 5921 break; | |
| 5922 ++count; | |
| 5923 } | |
| 5924 break; | |
| 5925 | |
| 5926 case WHITE: | |
| 5927 case WHITE + ADD_NL: | |
| 5928 testval = mask = RI_WHITE; | |
| 5929 do_class: | |
| 5930 while (count < maxcount) | |
| 5931 { | |
| 5932 #ifdef FEAT_MBYTE | |
| 5933 int l; | |
| 5934 #endif | |
| 5935 if (*scan == NUL) | |
| 5936 { | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
5937 if (!REG_MULTI || !WITH_NL(OP(p)) || reglnum > rex.reg_maxline |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
5938 || rex.reg_line_lbr) |
| 7 | 5939 break; |
| 5940 reg_nextline(); | |
| 5941 scan = reginput; | |
| 5942 if (got_int) | |
| 5943 break; | |
| 5944 } | |
| 5945 #ifdef FEAT_MBYTE | |
| 474 | 5946 else if (has_mbyte && (l = (*mb_ptr2len)(scan)) > 1) |
| 7 | 5947 { |
| 5948 if (testval != 0) | |
| 5949 break; | |
| 5950 scan += l; | |
| 5951 } | |
| 5952 #endif | |
| 5953 else if ((class_tab[*scan] & mask) == testval) | |
| 5954 ++scan; | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
5955 else if (rex.reg_line_lbr && *scan == '\n' && WITH_NL(OP(p))) |
| 7 | 5956 ++scan; |
| 5957 else | |
| 5958 break; | |
| 5959 ++count; | |
| 5960 } | |
| 5961 break; | |
| 5962 | |
| 5963 case NWHITE: | |
| 5964 case NWHITE + ADD_NL: | |
| 5965 mask = RI_WHITE; | |
| 5966 goto do_class; | |
| 5967 case DIGIT: | |
| 5968 case DIGIT + ADD_NL: | |
| 5969 testval = mask = RI_DIGIT; | |
| 5970 goto do_class; | |
| 5971 case NDIGIT: | |
| 5972 case NDIGIT + ADD_NL: | |
| 5973 mask = RI_DIGIT; | |
| 5974 goto do_class; | |
| 5975 case HEX: | |
| 5976 case HEX + ADD_NL: | |
| 5977 testval = mask = RI_HEX; | |
| 5978 goto do_class; | |
| 5979 case NHEX: | |
| 5980 case NHEX + ADD_NL: | |
| 5981 mask = RI_HEX; | |
| 5982 goto do_class; | |
| 5983 case OCTAL: | |
| 5984 case OCTAL + ADD_NL: | |
| 5985 testval = mask = RI_OCTAL; | |
| 5986 goto do_class; | |
| 5987 case NOCTAL: | |
| 5988 case NOCTAL + ADD_NL: | |
| 5989 mask = RI_OCTAL; | |
| 5990 goto do_class; | |
| 5991 case WORD: | |
| 5992 case WORD + ADD_NL: | |
| 5993 testval = mask = RI_WORD; | |
| 5994 goto do_class; | |
| 5995 case NWORD: | |
| 5996 case NWORD + ADD_NL: | |
| 5997 mask = RI_WORD; | |
| 5998 goto do_class; | |
| 5999 case HEAD: | |
| 6000 case HEAD + ADD_NL: | |
| 6001 testval = mask = RI_HEAD; | |
| 6002 goto do_class; | |
| 6003 case NHEAD: | |
| 6004 case NHEAD + ADD_NL: | |
| 6005 mask = RI_HEAD; | |
| 6006 goto do_class; | |
| 6007 case ALPHA: | |
| 6008 case ALPHA + ADD_NL: | |
| 6009 testval = mask = RI_ALPHA; | |
| 6010 goto do_class; | |
| 6011 case NALPHA: | |
| 6012 case NALPHA + ADD_NL: | |
| 6013 mask = RI_ALPHA; | |
| 6014 goto do_class; | |
| 6015 case LOWER: | |
| 6016 case LOWER + ADD_NL: | |
| 6017 testval = mask = RI_LOWER; | |
| 6018 goto do_class; | |
| 6019 case NLOWER: | |
| 6020 case NLOWER + ADD_NL: | |
| 6021 mask = RI_LOWER; | |
| 6022 goto do_class; | |
| 6023 case UPPER: | |
| 6024 case UPPER + ADD_NL: | |
| 6025 testval = mask = RI_UPPER; | |
| 6026 goto do_class; | |
| 6027 case NUPPER: | |
| 6028 case NUPPER + ADD_NL: | |
| 6029 mask = RI_UPPER; | |
| 6030 goto do_class; | |
| 6031 | |
| 6032 case EXACTLY: | |
| 6033 { | |
| 6034 int cu, cl; | |
| 6035 | |
| 6036 /* This doesn't do a multi-byte character, because a MULTIBYTECODE | |
| 1347 | 6037 * would have been used for it. It does handle single-byte |
| 6038 * characters, such as latin1. */ | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
6039 if (rex.reg_ic) |
| 7 | 6040 { |
| 1347 | 6041 cu = MB_TOUPPER(*opnd); |
| 6042 cl = MB_TOLOWER(*opnd); | |
| 7 | 6043 while (count < maxcount && (*scan == cu || *scan == cl)) |
| 6044 { | |
| 6045 count++; | |
| 6046 scan++; | |
| 6047 } | |
| 6048 } | |
| 6049 else | |
| 6050 { | |
| 6051 cu = *opnd; | |
| 6052 while (count < maxcount && *scan == cu) | |
| 6053 { | |
| 6054 count++; | |
| 6055 scan++; | |
| 6056 } | |
| 6057 } | |
| 6058 break; | |
| 6059 } | |
| 6060 | |
| 6061 #ifdef FEAT_MBYTE | |
| 6062 case MULTIBYTECODE: | |
| 6063 { | |
| 6064 int i, len, cf = 0; | |
| 6065 | |
| 6066 /* Safety check (just in case 'encoding' was changed since | |
| 6067 * compiling the program). */ | |
| 474 | 6068 if ((len = (*mb_ptr2len)(opnd)) > 1) |
| 7 | 6069 { |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
6070 if (rex.reg_ic && enc_utf8) |
| 7 | 6071 cf = utf_fold(utf_ptr2char(opnd)); |
| 6785 | 6072 while (count < maxcount && (*mb_ptr2len)(scan) >= len) |
| 7 | 6073 { |
| 6074 for (i = 0; i < len; ++i) | |
| 6075 if (opnd[i] != scan[i]) | |
| 6076 break; | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
6077 if (i < len && (!rex.reg_ic || !enc_utf8 |
| 7 | 6078 || utf_fold(utf_ptr2char(scan)) != cf)) |
| 6079 break; | |
| 6080 scan += len; | |
| 6081 ++count; | |
| 6082 } | |
| 6083 } | |
| 6084 } | |
| 6085 break; | |
| 6086 #endif | |
| 6087 | |
| 6088 case ANYOF: | |
| 6089 case ANYOF + ADD_NL: | |
| 6090 testval = TRUE; | |
| 6091 /*FALLTHROUGH*/ | |
| 6092 | |
| 6093 case ANYBUT: | |
| 6094 case ANYBUT + ADD_NL: | |
| 6095 while (count < maxcount) | |
| 6096 { | |
| 6097 #ifdef FEAT_MBYTE | |
| 6098 int len; | |
| 6099 #endif | |
| 6100 if (*scan == NUL) | |
| 6101 { | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
6102 if (!REG_MULTI || !WITH_NL(OP(p)) || reglnum > rex.reg_maxline |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
6103 || rex.reg_line_lbr) |
| 7 | 6104 break; |
| 6105 reg_nextline(); | |
| 6106 scan = reginput; | |
| 6107 if (got_int) | |
| 6108 break; | |
| 6109 } | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
6110 else if (rex.reg_line_lbr && *scan == '\n' && WITH_NL(OP(p))) |
| 7 | 6111 ++scan; |
| 6112 #ifdef FEAT_MBYTE | |
| 474 | 6113 else if (has_mbyte && (len = (*mb_ptr2len)(scan)) > 1) |
| 7 | 6114 { |
| 6115 if ((cstrchr(opnd, (*mb_ptr2char)(scan)) == NULL) == testval) | |
| 6116 break; | |
| 6117 scan += len; | |
| 6118 } | |
| 6119 #endif | |
| 6120 else | |
| 6121 { | |
| 6122 if ((cstrchr(opnd, *scan) == NULL) == testval) | |
| 6123 break; | |
| 6124 ++scan; | |
| 6125 } | |
| 6126 ++count; | |
| 6127 } | |
| 6128 break; | |
| 6129 | |
| 6130 case NEWL: | |
| 6131 while (count < maxcount | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
6132 && ((*scan == NUL && reglnum <= rex.reg_maxline |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
6133 && !rex.reg_line_lbr && REG_MULTI) |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
6134 || (*scan == '\n' && rex.reg_line_lbr))) |
| 7 | 6135 { |
| 6136 count++; | |
|
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d76ccdacb41e
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parents:
10187
diff
changeset
|
6137 if (rex.reg_line_lbr) |
| 7 | 6138 ADVANCE_REGINPUT(); |
| 6139 else | |
| 6140 reg_nextline(); | |
| 6141 scan = reginput; | |
| 6142 if (got_int) | |
| 6143 break; | |
| 6144 } | |
| 6145 break; | |
| 6146 | |
| 6147 default: /* Oh dear. Called inappropriately. */ | |
| 6148 EMSG(_(e_re_corr)); | |
| 6149 #ifdef DEBUG | |
| 6150 printf("Called regrepeat with op code %d\n", OP(p)); | |
| 6151 #endif | |
| 6152 break; | |
| 6153 } | |
| 6154 | |
| 6155 reginput = scan; | |
| 6156 | |
| 6157 return (int)count; | |
| 6158 } | |
| 6159 | |
| 6160 /* | |
| 6161 * regnext - dig the "next" pointer out of a node | |
| 2010 | 6162 * Returns NULL when calculating size, when there is no next item and when |
| 6163 * there is an error. | |
| 7 | 6164 */ |
| 6165 static char_u * | |
|
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7807
diff
changeset
|
6166 regnext(char_u *p) |
| 7 | 6167 { |
| 6168 int offset; | |
| 6169 | |
| 2010 | 6170 if (p == JUST_CALC_SIZE || reg_toolong) |
| 7 | 6171 return NULL; |
| 6172 | |
| 6173 offset = NEXT(p); | |
| 6174 if (offset == 0) | |
| 6175 return NULL; | |
| 6176 | |
| 233 | 6177 if (OP(p) == BACK) |
| 7 | 6178 return p - offset; |
| 6179 else | |
| 6180 return p + offset; | |
| 6181 } | |
| 6182 | |
| 6183 /* | |
| 6184 * Check the regexp program for its magic number. | |
| 6185 * Return TRUE if it's wrong. | |
| 6186 */ | |
| 6187 static int | |
|
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diff
changeset
|
6188 prog_magic_wrong(void) |
| 7 | 6189 { |
| 4444 | 6190 regprog_T *prog; |
| 6191 | |
|
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diff
changeset
|
6192 prog = REG_MULTI ? rex.reg_mmatch->regprog : rex.reg_match->regprog; |
| 4444 | 6193 if (prog->engine == &nfa_regengine) |
| 6194 /* For NFA matcher we don't check the magic */ | |
| 6195 return FALSE; | |
| 6196 | |
| 6197 if (UCHARAT(((bt_regprog_T *)prog)->program) != REGMAGIC) | |
| 7 | 6198 { |
| 6199 EMSG(_(e_re_corr)); | |
| 6200 return TRUE; | |
| 6201 } | |
| 6202 return FALSE; | |
| 6203 } | |
| 6204 | |
| 6205 /* | |
| 6206 * Cleanup the subexpressions, if this wasn't done yet. | |
| 6207 * This construction is used to clear the subexpressions only when they are | |
| 6208 * used (to increase speed). | |
| 6209 */ | |
| 6210 static void | |
|
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diff
changeset
|
6211 cleanup_subexpr(void) |
| 7 | 6212 { |
| 6213 if (need_clear_subexpr) | |
| 6214 { | |
| 6215 if (REG_MULTI) | |
| 6216 { | |
| 6217 /* Use 0xff to set lnum to -1 */ | |
|
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diff
changeset
|
6218 vim_memset(rex.reg_startpos, 0xff, sizeof(lpos_T) * NSUBEXP); |
|
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10187
diff
changeset
|
6219 vim_memset(rex.reg_endpos, 0xff, sizeof(lpos_T) * NSUBEXP); |
| 7 | 6220 } |
| 6221 else | |
| 6222 { | |
|
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diff
changeset
|
6223 vim_memset(rex.reg_startp, 0, sizeof(char_u *) * NSUBEXP); |
|
d76ccdacb41e
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diff
changeset
|
6224 vim_memset(rex.reg_endp, 0, sizeof(char_u *) * NSUBEXP); |
| 7 | 6225 } |
| 6226 need_clear_subexpr = FALSE; | |
| 6227 } | |
| 6228 } | |
| 6229 | |
| 6230 #ifdef FEAT_SYN_HL | |
| 6231 static void | |
|
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diff
changeset
|
6232 cleanup_zsubexpr(void) |
| 7 | 6233 { |
| 6234 if (need_clear_zsubexpr) | |
| 6235 { | |
| 6236 if (REG_MULTI) | |
| 6237 { | |
| 6238 /* Use 0xff to set lnum to -1 */ | |
| 6239 vim_memset(reg_startzpos, 0xff, sizeof(lpos_T) * NSUBEXP); | |
| 6240 vim_memset(reg_endzpos, 0xff, sizeof(lpos_T) * NSUBEXP); | |
| 6241 } | |
| 6242 else | |
| 6243 { | |
| 6244 vim_memset(reg_startzp, 0, sizeof(char_u *) * NSUBEXP); | |
| 6245 vim_memset(reg_endzp, 0, sizeof(char_u *) * NSUBEXP); | |
| 6246 } | |
| 6247 need_clear_zsubexpr = FALSE; | |
| 6248 } | |
| 6249 } | |
| 6250 #endif | |
| 6251 | |
| 6252 /* | |
| 1579 | 6253 * Save the current subexpr to "bp", so that they can be restored |
| 6254 * later by restore_subexpr(). | |
| 6255 */ | |
| 6256 static void | |
|
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diff
changeset
|
6257 save_subexpr(regbehind_T *bp) |
| 1579 | 6258 { |
| 6259 int i; | |
| 6260 | |
| 1602 | 6261 /* When "need_clear_subexpr" is set we don't need to save the values, only |
| 6262 * remember that this flag needs to be set again when restoring. */ | |
| 6263 bp->save_need_clear_subexpr = need_clear_subexpr; | |
| 6264 if (!need_clear_subexpr) | |
| 1579 | 6265 { |
| 1602 | 6266 for (i = 0; i < NSUBEXP; ++i) |
| 1579 | 6267 { |
| 1602 | 6268 if (REG_MULTI) |
| 6269 { | |
|
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diff
changeset
|
6270 bp->save_start[i].se_u.pos = rex.reg_startpos[i]; |
|
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diff
changeset
|
6271 bp->save_end[i].se_u.pos = rex.reg_endpos[i]; |
| 1602 | 6272 } |
| 6273 else | |
| 6274 { | |
|
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diff
changeset
|
6275 bp->save_start[i].se_u.ptr = rex.reg_startp[i]; |
|
d76ccdacb41e
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diff
changeset
|
6276 bp->save_end[i].se_u.ptr = rex.reg_endp[i]; |
| 1602 | 6277 } |
| 1579 | 6278 } |
| 6279 } | |
| 6280 } | |
| 6281 | |
| 6282 /* | |
| 6283 * Restore the subexpr from "bp". | |
| 6284 */ | |
| 6285 static void | |
|
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changeset
|
6286 restore_subexpr(regbehind_T *bp) |
| 1579 | 6287 { |
| 6288 int i; | |
| 6289 | |
| 1602 | 6290 /* Only need to restore saved values when they are not to be cleared. */ |
| 6291 need_clear_subexpr = bp->save_need_clear_subexpr; | |
| 6292 if (!need_clear_subexpr) | |
| 1579 | 6293 { |
| 1602 | 6294 for (i = 0; i < NSUBEXP; ++i) |
| 1579 | 6295 { |
| 1602 | 6296 if (REG_MULTI) |
| 6297 { | |
|
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diff
changeset
|
6298 rex.reg_startpos[i] = bp->save_start[i].se_u.pos; |
|
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diff
changeset
|
6299 rex.reg_endpos[i] = bp->save_end[i].se_u.pos; |
| 1602 | 6300 } |
| 6301 else | |
| 6302 { | |
|
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diff
changeset
|
6303 rex.reg_startp[i] = bp->save_start[i].se_u.ptr; |
|
d76ccdacb41e
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diff
changeset
|
6304 rex.reg_endp[i] = bp->save_end[i].se_u.ptr; |
| 1602 | 6305 } |
| 1579 | 6306 } |
| 6307 } | |
| 6308 } | |
| 6309 | |
| 6310 /* | |
| 7 | 6311 * Advance reglnum, regline and reginput to the next line. |
| 6312 */ | |
| 6313 static void | |
|
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diff
changeset
|
6314 reg_nextline(void) |
| 7 | 6315 { |
| 6316 regline = reg_getline(++reglnum); | |
| 6317 reginput = regline; | |
| 6318 fast_breakcheck(); | |
| 6319 } | |
| 6320 | |
| 6321 /* | |
| 6322 * Save the input line and position in a regsave_T. | |
| 6323 */ | |
| 6324 static void | |
|
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diff
changeset
|
6325 reg_save(regsave_T *save, garray_T *gap) |
| 7 | 6326 { |
| 6327 if (REG_MULTI) | |
| 6328 { | |
| 6329 save->rs_u.pos.col = (colnr_T)(reginput - regline); | |
| 6330 save->rs_u.pos.lnum = reglnum; | |
| 6331 } | |
| 6332 else | |
| 6333 save->rs_u.ptr = reginput; | |
| 233 | 6334 save->rs_len = gap->ga_len; |
| 7 | 6335 } |
| 6336 | |
| 6337 /* | |
| 6338 * Restore the input line and position from a regsave_T. | |
| 6339 */ | |
| 6340 static void | |
|
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diff
changeset
|
6341 reg_restore(regsave_T *save, garray_T *gap) |
| 7 | 6342 { |
| 6343 if (REG_MULTI) | |
| 6344 { | |
| 6345 if (reglnum != save->rs_u.pos.lnum) | |
| 6346 { | |
| 6347 /* only call reg_getline() when the line number changed to save | |
| 6348 * a bit of time */ | |
| 6349 reglnum = save->rs_u.pos.lnum; | |
| 6350 regline = reg_getline(reglnum); | |
| 6351 } | |
| 6352 reginput = regline + save->rs_u.pos.col; | |
| 6353 } | |
| 6354 else | |
| 6355 reginput = save->rs_u.ptr; | |
| 233 | 6356 gap->ga_len = save->rs_len; |
| 7 | 6357 } |
| 6358 | |
| 6359 /* | |
| 6360 * Return TRUE if current position is equal to saved position. | |
| 6361 */ | |
| 6362 static int | |
|
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diff
changeset
|
6363 reg_save_equal(regsave_T *save) |
| 7 | 6364 { |
| 6365 if (REG_MULTI) | |
| 6366 return reglnum == save->rs_u.pos.lnum | |
| 6367 && reginput == regline + save->rs_u.pos.col; | |
| 6368 return reginput == save->rs_u.ptr; | |
| 6369 } | |
| 6370 | |
| 6371 /* | |
| 6372 * Tentatively set the sub-expression start to the current position (after | |
| 6373 * calling regmatch() they will have changed). Need to save the existing | |
| 6374 * values for when there is no match. | |
| 6375 * Use se_save() to use pointer (save_se_multi()) or position (save_se_one()), | |
| 6376 * depending on REG_MULTI. | |
| 6377 */ | |
| 6378 static void | |
|
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diff
changeset
|
6379 save_se_multi(save_se_T *savep, lpos_T *posp) |
| 7 | 6380 { |
| 6381 savep->se_u.pos = *posp; | |
| 6382 posp->lnum = reglnum; | |
| 6383 posp->col = (colnr_T)(reginput - regline); | |
| 6384 } | |
| 6385 | |
| 6386 static void | |
|
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diff
changeset
|
6387 save_se_one(save_se_T *savep, char_u **pp) |
| 7 | 6388 { |
| 6389 savep->se_u.ptr = *pp; | |
| 6390 *pp = reginput; | |
| 6391 } | |
| 6392 | |
| 6393 /* | |
| 6394 * Compare a number with the operand of RE_LNUM, RE_COL or RE_VCOL. | |
| 6395 */ | |
| 6396 static int | |
|
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diff
changeset
|
6397 re_num_cmp(long_u val, char_u *scan) |
| 7 | 6398 { |
| 6399 long_u n = OPERAND_MIN(scan); | |
| 6400 | |
| 6401 if (OPERAND_CMP(scan) == '>') | |
| 6402 return val > n; | |
| 6403 if (OPERAND_CMP(scan) == '<') | |
| 6404 return val < n; | |
| 6405 return val == n; | |
| 6406 } | |
| 6407 | |
|
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|
6408 /* |
|
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6409 * Check whether a backreference matches. |
|
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6410 * Returns RA_FAIL, RA_NOMATCH or RA_MATCH. |
| 5504 | 6411 * If "bytelen" is not NULL, it is set to the byte length of the match in the |
| 6412 * last line. | |
|
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6413 */ |
|
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6414 static int |
|
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changeset
|
6415 match_with_backref( |
|
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|
6416 linenr_T start_lnum, |
|
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|
6417 colnr_T start_col, |
|
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|
6418 linenr_T end_lnum, |
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|
6419 colnr_T end_col, |
|
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|
6420 int *bytelen) |
|
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6421 { |
|
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6422 linenr_T clnum = start_lnum; |
|
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6423 colnr_T ccol = start_col; |
|
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6424 int len; |
|
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|
6425 char_u *p; |
|
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6426 |
|
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|
6427 if (bytelen != NULL) |
|
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|
6428 *bytelen = 0; |
|
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|
6429 for (;;) |
|
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|
6430 { |
|
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|
6431 /* Since getting one line may invalidate the other, need to make copy. |
|
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6432 * Slow! */ |
|
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|
6433 if (regline != reg_tofree) |
|
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6434 { |
|
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|
6435 len = (int)STRLEN(regline); |
|
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changeset
|
6436 if (reg_tofree == NULL || len >= (int)reg_tofreelen) |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6437 { |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6438 len += 50; /* get some extra */ |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6439 vim_free(reg_tofree); |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6440 reg_tofree = alloc(len); |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6441 if (reg_tofree == NULL) |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6442 return RA_FAIL; /* out of memory!*/ |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6443 reg_tofreelen = len; |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6444 } |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6445 STRCPY(reg_tofree, regline); |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6446 reginput = reg_tofree + (reginput - regline); |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6447 regline = reg_tofree; |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6448 } |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6449 |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6450 /* Get the line to compare with. */ |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6451 p = reg_getline(clnum); |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6452 if (clnum == end_lnum) |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6453 len = end_col - ccol; |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6454 else |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6455 len = (int)STRLEN(p + ccol); |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6456 |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6457 if (cstrncmp(p + ccol, reginput, &len) != 0) |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6458 return RA_NOMATCH; /* doesn't match */ |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6459 if (bytelen != NULL) |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6460 *bytelen += len; |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6461 if (clnum == end_lnum) |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6462 break; /* match and at end! */ |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
6463 if (reglnum >= rex.reg_maxline) |
|
4891
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6464 return RA_NOMATCH; /* text too short */ |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6465 |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6466 /* Advance to next line. */ |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6467 reg_nextline(); |
| 5504 | 6468 if (bytelen != NULL) |
| 6469 *bytelen = 0; | |
|
4891
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6470 ++clnum; |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6471 ccol = 0; |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6472 if (got_int) |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6473 return RA_FAIL; |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6474 } |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6475 |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6476 /* found a match! Note that regline may now point to a copy of the line, |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6477 * that should not matter. */ |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6478 return RA_MATCH; |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6479 } |
| 7 | 6480 |
| 4444 | 6481 #ifdef BT_REGEXP_DUMP |
| 7 | 6482 |
| 6483 /* | |
| 6484 * regdump - dump a regexp onto stdout in vaguely comprehensible form | |
| 6485 */ | |
| 6486 static void | |
|
7833
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
6487 regdump(char_u *pattern, bt_regprog_T *r) |
| 7 | 6488 { |
| 6489 char_u *s; | |
| 6490 int op = EXACTLY; /* Arbitrary non-END op. */ | |
| 6491 char_u *next; | |
| 6492 char_u *end = NULL; | |
| 4444 | 6493 FILE *f; |
| 6494 | |
| 6495 #ifdef BT_REGEXP_LOG | |
| 6496 f = fopen("bt_regexp_log.log", "a"); | |
| 6497 #else | |
| 6498 f = stdout; | |
| 6499 #endif | |
| 6500 if (f == NULL) | |
| 6501 return; | |
| 6502 fprintf(f, "-------------------------------------\n\r\nregcomp(%s):\r\n", pattern); | |
| 7 | 6503 |
| 6504 s = r->program + 1; | |
| 6505 /* | |
| 6506 * Loop until we find the END that isn't before a referred next (an END | |
| 6507 * can also appear in a NOMATCH operand). | |
| 6508 */ | |
| 6509 while (op != END || s <= end) | |
| 6510 { | |
| 6511 op = OP(s); | |
| 4444 | 6512 fprintf(f, "%2d%s", (int)(s - r->program), regprop(s)); /* Where, what. */ |
| 7 | 6513 next = regnext(s); |
| 6514 if (next == NULL) /* Next ptr. */ | |
| 4444 | 6515 fprintf(f, "(0)"); |
| 7 | 6516 else |
| 4444 | 6517 fprintf(f, "(%d)", (int)((s - r->program) + (next - s))); |
| 7 | 6518 if (end < next) |
| 6519 end = next; | |
| 6520 if (op == BRACE_LIMITS) | |
| 6521 { | |
|
4746
d1376091d18b
updated for version 7.3.1120
Bram Moolenaar <bram@vim.org>
parents:
4744
diff
changeset
|
6522 /* Two ints */ |
| 4444 | 6523 fprintf(f, " minval %ld, maxval %ld", OPERAND_MIN(s), OPERAND_MAX(s)); |
| 7 | 6524 s += 8; |
| 6525 } | |
|
4746
d1376091d18b
updated for version 7.3.1120
Bram Moolenaar <bram@vim.org>
parents:
4744
diff
changeset
|
6526 else if (op == BEHIND || op == NOBEHIND) |
|
d1376091d18b
updated for version 7.3.1120
Bram Moolenaar <bram@vim.org>
parents:
4744
diff
changeset
|
6527 { |
|
d1376091d18b
updated for version 7.3.1120
Bram Moolenaar <bram@vim.org>
parents:
4744
diff
changeset
|
6528 /* one int */ |
|
d1376091d18b
updated for version 7.3.1120
Bram Moolenaar <bram@vim.org>
parents:
4744
diff
changeset
|
6529 fprintf(f, " count %ld", OPERAND_MIN(s)); |
|
d1376091d18b
updated for version 7.3.1120
Bram Moolenaar <bram@vim.org>
parents:
4744
diff
changeset
|
6530 s += 4; |
|
d1376091d18b
updated for version 7.3.1120
Bram Moolenaar <bram@vim.org>
parents:
4744
diff
changeset
|
6531 } |
|
4770
b20dbf3a5370
updated for version 7.3.1132
Bram Moolenaar <bram@vim.org>
parents:
4762
diff
changeset
|
6532 else if (op == RE_LNUM || op == RE_COL || op == RE_VCOL) |
|
b20dbf3a5370
updated for version 7.3.1132
Bram Moolenaar <bram@vim.org>
parents:
4762
diff
changeset
|
6533 { |
|
b20dbf3a5370
updated for version 7.3.1132
Bram Moolenaar <bram@vim.org>
parents:
4762
diff
changeset
|
6534 /* one int plus comperator */ |
|
b20dbf3a5370
updated for version 7.3.1132
Bram Moolenaar <bram@vim.org>
parents:
4762
diff
changeset
|
6535 fprintf(f, " count %ld", OPERAND_MIN(s)); |
|
b20dbf3a5370
updated for version 7.3.1132
Bram Moolenaar <bram@vim.org>
parents:
4762
diff
changeset
|
6536 s += 5; |
|
b20dbf3a5370
updated for version 7.3.1132
Bram Moolenaar <bram@vim.org>
parents:
4762
diff
changeset
|
6537 } |
| 7 | 6538 s += 3; |
| 6539 if (op == ANYOF || op == ANYOF + ADD_NL | |
| 6540 || op == ANYBUT || op == ANYBUT + ADD_NL | |
| 6541 || op == EXACTLY) | |
| 6542 { | |
| 6543 /* Literal string, where present. */ | |
| 4444 | 6544 fprintf(f, "\nxxxxxxxxx\n"); |
| 7 | 6545 while (*s != NUL) |
| 4444 | 6546 fprintf(f, "%c", *s++); |
| 6547 fprintf(f, "\nxxxxxxxxx\n"); | |
| 7 | 6548 s++; |
| 6549 } | |
| 4444 | 6550 fprintf(f, "\r\n"); |
| 7 | 6551 } |
| 6552 | |
| 6553 /* Header fields of interest. */ | |
| 6554 if (r->regstart != NUL) | |
| 4444 | 6555 fprintf(f, "start `%s' 0x%x; ", r->regstart < 256 |
| 7 | 6556 ? (char *)transchar(r->regstart) |
| 6557 : "multibyte", r->regstart); | |
| 6558 if (r->reganch) | |
| 4444 | 6559 fprintf(f, "anchored; "); |
| 7 | 6560 if (r->regmust != NULL) |
| 4444 | 6561 fprintf(f, "must have \"%s\"", r->regmust); |
| 6562 fprintf(f, "\r\n"); | |
| 6563 | |
| 6564 #ifdef BT_REGEXP_LOG | |
| 6565 fclose(f); | |
| 6566 #endif | |
| 7 | 6567 } |
| 4444 | 6568 #endif /* BT_REGEXP_DUMP */ |
| 6569 | |
| 6570 #ifdef DEBUG | |
| 7 | 6571 /* |
| 6572 * regprop - printable representation of opcode | |
| 6573 */ | |
| 6574 static char_u * | |
|
7833
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
6575 regprop(char_u *op) |
| 7 | 6576 { |
| 4444 | 6577 char *p; |
| 6578 static char buf[50]; | |
| 6579 | |
| 6580 STRCPY(buf, ":"); | |
| 6581 | |
| 6582 switch ((int) OP(op)) | |
| 7 | 6583 { |
| 6584 case BOL: | |
| 6585 p = "BOL"; | |
| 6586 break; | |
| 6587 case EOL: | |
| 6588 p = "EOL"; | |
| 6589 break; | |
| 6590 case RE_BOF: | |
| 6591 p = "BOF"; | |
| 6592 break; | |
| 6593 case RE_EOF: | |
| 6594 p = "EOF"; | |
| 6595 break; | |
| 6596 case CURSOR: | |
| 6597 p = "CURSOR"; | |
| 6598 break; | |
| 639 | 6599 case RE_VISUAL: |
| 6600 p = "RE_VISUAL"; | |
| 6601 break; | |
| 7 | 6602 case RE_LNUM: |
| 6603 p = "RE_LNUM"; | |
| 6604 break; | |
| 639 | 6605 case RE_MARK: |
| 6606 p = "RE_MARK"; | |
| 6607 break; | |
| 7 | 6608 case RE_COL: |
| 6609 p = "RE_COL"; | |
| 6610 break; | |
| 6611 case RE_VCOL: | |
| 6612 p = "RE_VCOL"; | |
| 6613 break; | |
| 6614 case BOW: | |
| 6615 p = "BOW"; | |
| 6616 break; | |
| 6617 case EOW: | |
| 6618 p = "EOW"; | |
| 6619 break; | |
| 6620 case ANY: | |
| 6621 p = "ANY"; | |
| 6622 break; | |
| 6623 case ANY + ADD_NL: | |
| 6624 p = "ANY+NL"; | |
| 6625 break; | |
| 6626 case ANYOF: | |
| 6627 p = "ANYOF"; | |
| 6628 break; | |
| 6629 case ANYOF + ADD_NL: | |
| 6630 p = "ANYOF+NL"; | |
| 6631 break; | |
| 6632 case ANYBUT: | |
| 6633 p = "ANYBUT"; | |
| 6634 break; | |
| 6635 case ANYBUT + ADD_NL: | |
| 6636 p = "ANYBUT+NL"; | |
| 6637 break; | |
| 6638 case IDENT: | |
| 6639 p = "IDENT"; | |
| 6640 break; | |
| 6641 case IDENT + ADD_NL: | |
| 6642 p = "IDENT+NL"; | |
| 6643 break; | |
| 6644 case SIDENT: | |
| 6645 p = "SIDENT"; | |
| 6646 break; | |
| 6647 case SIDENT + ADD_NL: | |
| 6648 p = "SIDENT+NL"; | |
| 6649 break; | |
| 6650 case KWORD: | |
| 6651 p = "KWORD"; | |
| 6652 break; | |
| 6653 case KWORD + ADD_NL: | |
| 6654 p = "KWORD+NL"; | |
| 6655 break; | |
| 6656 case SKWORD: | |
| 6657 p = "SKWORD"; | |
| 6658 break; | |
| 6659 case SKWORD + ADD_NL: | |
| 6660 p = "SKWORD+NL"; | |
| 6661 break; | |
| 6662 case FNAME: | |
| 6663 p = "FNAME"; | |
| 6664 break; | |
| 6665 case FNAME + ADD_NL: | |
| 6666 p = "FNAME+NL"; | |
| 6667 break; | |
| 6668 case SFNAME: | |
| 6669 p = "SFNAME"; | |
| 6670 break; | |
| 6671 case SFNAME + ADD_NL: | |
| 6672 p = "SFNAME+NL"; | |
| 6673 break; | |
| 6674 case PRINT: | |
| 6675 p = "PRINT"; | |
| 6676 break; | |
| 6677 case PRINT + ADD_NL: | |
| 6678 p = "PRINT+NL"; | |
| 6679 break; | |
| 6680 case SPRINT: | |
| 6681 p = "SPRINT"; | |
| 6682 break; | |
| 6683 case SPRINT + ADD_NL: | |
| 6684 p = "SPRINT+NL"; | |
| 6685 break; | |
| 6686 case WHITE: | |
| 6687 p = "WHITE"; | |
| 6688 break; | |
| 6689 case WHITE + ADD_NL: | |
| 6690 p = "WHITE+NL"; | |
| 6691 break; | |
| 6692 case NWHITE: | |
| 6693 p = "NWHITE"; | |
| 6694 break; | |
| 6695 case NWHITE + ADD_NL: | |
| 6696 p = "NWHITE+NL"; | |
| 6697 break; | |
| 6698 case DIGIT: | |
| 6699 p = "DIGIT"; | |
| 6700 break; | |
| 6701 case DIGIT + ADD_NL: | |
| 6702 p = "DIGIT+NL"; | |
| 6703 break; | |
| 6704 case NDIGIT: | |
| 6705 p = "NDIGIT"; | |
| 6706 break; | |
| 6707 case NDIGIT + ADD_NL: | |
| 6708 p = "NDIGIT+NL"; | |
| 6709 break; | |
| 6710 case HEX: | |
| 6711 p = "HEX"; | |
| 6712 break; | |
| 6713 case HEX + ADD_NL: | |
| 6714 p = "HEX+NL"; | |
| 6715 break; | |
| 6716 case NHEX: | |
| 6717 p = "NHEX"; | |
| 6718 break; | |
| 6719 case NHEX + ADD_NL: | |
| 6720 p = "NHEX+NL"; | |
| 6721 break; | |
| 6722 case OCTAL: | |
| 6723 p = "OCTAL"; | |
| 6724 break; | |
| 6725 case OCTAL + ADD_NL: | |
| 6726 p = "OCTAL+NL"; | |
| 6727 break; | |
| 6728 case NOCTAL: | |
| 6729 p = "NOCTAL"; | |
| 6730 break; | |
| 6731 case NOCTAL + ADD_NL: | |
| 6732 p = "NOCTAL+NL"; | |
| 6733 break; | |
| 6734 case WORD: | |
| 6735 p = "WORD"; | |
| 6736 break; | |
| 6737 case WORD + ADD_NL: | |
| 6738 p = "WORD+NL"; | |
| 6739 break; | |
| 6740 case NWORD: | |
| 6741 p = "NWORD"; | |
| 6742 break; | |
| 6743 case NWORD + ADD_NL: | |
| 6744 p = "NWORD+NL"; | |
| 6745 break; | |
| 6746 case HEAD: | |
| 6747 p = "HEAD"; | |
| 6748 break; | |
| 6749 case HEAD + ADD_NL: | |
| 6750 p = "HEAD+NL"; | |
| 6751 break; | |
| 6752 case NHEAD: | |
| 6753 p = "NHEAD"; | |
| 6754 break; | |
| 6755 case NHEAD + ADD_NL: | |
| 6756 p = "NHEAD+NL"; | |
| 6757 break; | |
| 6758 case ALPHA: | |
| 6759 p = "ALPHA"; | |
| 6760 break; | |
| 6761 case ALPHA + ADD_NL: | |
| 6762 p = "ALPHA+NL"; | |
| 6763 break; | |
| 6764 case NALPHA: | |
| 6765 p = "NALPHA"; | |
| 6766 break; | |
| 6767 case NALPHA + ADD_NL: | |
| 6768 p = "NALPHA+NL"; | |
| 6769 break; | |
| 6770 case LOWER: | |
| 6771 p = "LOWER"; | |
| 6772 break; | |
| 6773 case LOWER + ADD_NL: | |
| 6774 p = "LOWER+NL"; | |
| 6775 break; | |
| 6776 case NLOWER: | |
| 6777 p = "NLOWER"; | |
| 6778 break; | |
| 6779 case NLOWER + ADD_NL: | |
| 6780 p = "NLOWER+NL"; | |
| 6781 break; | |
| 6782 case UPPER: | |
| 6783 p = "UPPER"; | |
| 6784 break; | |
| 6785 case UPPER + ADD_NL: | |
| 6786 p = "UPPER+NL"; | |
| 6787 break; | |
| 6788 case NUPPER: | |
| 6789 p = "NUPPER"; | |
| 6790 break; | |
| 6791 case NUPPER + ADD_NL: | |
| 6792 p = "NUPPER+NL"; | |
| 6793 break; | |
| 6794 case BRANCH: | |
| 6795 p = "BRANCH"; | |
| 6796 break; | |
| 6797 case EXACTLY: | |
| 6798 p = "EXACTLY"; | |
| 6799 break; | |
| 6800 case NOTHING: | |
| 6801 p = "NOTHING"; | |
| 6802 break; | |
| 6803 case BACK: | |
| 6804 p = "BACK"; | |
| 6805 break; | |
| 6806 case END: | |
| 6807 p = "END"; | |
| 6808 break; | |
| 6809 case MOPEN + 0: | |
| 6810 p = "MATCH START"; | |
| 6811 break; | |
| 6812 case MOPEN + 1: | |
| 6813 case MOPEN + 2: | |
| 6814 case MOPEN + 3: | |
| 6815 case MOPEN + 4: | |
| 6816 case MOPEN + 5: | |
| 6817 case MOPEN + 6: | |
| 6818 case MOPEN + 7: | |
| 6819 case MOPEN + 8: | |
| 6820 case MOPEN + 9: | |
| 6821 sprintf(buf + STRLEN(buf), "MOPEN%d", OP(op) - MOPEN); | |
| 6822 p = NULL; | |
| 6823 break; | |
| 6824 case MCLOSE + 0: | |
| 6825 p = "MATCH END"; | |
| 6826 break; | |
| 6827 case MCLOSE + 1: | |
| 6828 case MCLOSE + 2: | |
| 6829 case MCLOSE + 3: | |
| 6830 case MCLOSE + 4: | |
| 6831 case MCLOSE + 5: | |
| 6832 case MCLOSE + 6: | |
| 6833 case MCLOSE + 7: | |
| 6834 case MCLOSE + 8: | |
| 6835 case MCLOSE + 9: | |
| 6836 sprintf(buf + STRLEN(buf), "MCLOSE%d", OP(op) - MCLOSE); | |
| 6837 p = NULL; | |
| 6838 break; | |
| 6839 case BACKREF + 1: | |
| 6840 case BACKREF + 2: | |
| 6841 case BACKREF + 3: | |
| 6842 case BACKREF + 4: | |
| 6843 case BACKREF + 5: | |
| 6844 case BACKREF + 6: | |
| 6845 case BACKREF + 7: | |
| 6846 case BACKREF + 8: | |
| 6847 case BACKREF + 9: | |
| 6848 sprintf(buf + STRLEN(buf), "BACKREF%d", OP(op) - BACKREF); | |
| 6849 p = NULL; | |
| 6850 break; | |
| 6851 case NOPEN: | |
| 6852 p = "NOPEN"; | |
| 6853 break; | |
| 6854 case NCLOSE: | |
| 6855 p = "NCLOSE"; | |
| 6856 break; | |
| 6857 #ifdef FEAT_SYN_HL | |
| 6858 case ZOPEN + 1: | |
| 6859 case ZOPEN + 2: | |
| 6860 case ZOPEN + 3: | |
| 6861 case ZOPEN + 4: | |
| 6862 case ZOPEN + 5: | |
| 6863 case ZOPEN + 6: | |
| 6864 case ZOPEN + 7: | |
| 6865 case ZOPEN + 8: | |
| 6866 case ZOPEN + 9: | |
| 6867 sprintf(buf + STRLEN(buf), "ZOPEN%d", OP(op) - ZOPEN); | |
| 6868 p = NULL; | |
| 6869 break; | |
| 6870 case ZCLOSE + 1: | |
| 6871 case ZCLOSE + 2: | |
| 6872 case ZCLOSE + 3: | |
| 6873 case ZCLOSE + 4: | |
| 6874 case ZCLOSE + 5: | |
| 6875 case ZCLOSE + 6: | |
| 6876 case ZCLOSE + 7: | |
| 6877 case ZCLOSE + 8: | |
| 6878 case ZCLOSE + 9: | |
| 6879 sprintf(buf + STRLEN(buf), "ZCLOSE%d", OP(op) - ZCLOSE); | |
| 6880 p = NULL; | |
| 6881 break; | |
| 6882 case ZREF + 1: | |
| 6883 case ZREF + 2: | |
| 6884 case ZREF + 3: | |
| 6885 case ZREF + 4: | |
| 6886 case ZREF + 5: | |
| 6887 case ZREF + 6: | |
| 6888 case ZREF + 7: | |
| 6889 case ZREF + 8: | |
| 6890 case ZREF + 9: | |
| 6891 sprintf(buf + STRLEN(buf), "ZREF%d", OP(op) - ZREF); | |
| 6892 p = NULL; | |
| 6893 break; | |
| 6894 #endif | |
| 6895 case STAR: | |
| 6896 p = "STAR"; | |
| 6897 break; | |
| 6898 case PLUS: | |
| 6899 p = "PLUS"; | |
| 6900 break; | |
| 6901 case NOMATCH: | |
| 6902 p = "NOMATCH"; | |
| 6903 break; | |
| 6904 case MATCH: | |
| 6905 p = "MATCH"; | |
| 6906 break; | |
| 6907 case BEHIND: | |
| 6908 p = "BEHIND"; | |
| 6909 break; | |
| 6910 case NOBEHIND: | |
| 6911 p = "NOBEHIND"; | |
| 6912 break; | |
| 6913 case SUBPAT: | |
| 6914 p = "SUBPAT"; | |
| 6915 break; | |
| 6916 case BRACE_LIMITS: | |
| 6917 p = "BRACE_LIMITS"; | |
| 6918 break; | |
| 6919 case BRACE_SIMPLE: | |
| 6920 p = "BRACE_SIMPLE"; | |
| 6921 break; | |
| 6922 case BRACE_COMPLEX + 0: | |
| 6923 case BRACE_COMPLEX + 1: | |
| 6924 case BRACE_COMPLEX + 2: | |
| 6925 case BRACE_COMPLEX + 3: | |
| 6926 case BRACE_COMPLEX + 4: | |
| 6927 case BRACE_COMPLEX + 5: | |
| 6928 case BRACE_COMPLEX + 6: | |
| 6929 case BRACE_COMPLEX + 7: | |
| 6930 case BRACE_COMPLEX + 8: | |
| 6931 case BRACE_COMPLEX + 9: | |
| 6932 sprintf(buf + STRLEN(buf), "BRACE_COMPLEX%d", OP(op) - BRACE_COMPLEX); | |
| 6933 p = NULL; | |
| 6934 break; | |
| 6935 #ifdef FEAT_MBYTE | |
| 6936 case MULTIBYTECODE: | |
| 6937 p = "MULTIBYTECODE"; | |
| 6938 break; | |
| 6939 #endif | |
| 6940 case NEWL: | |
| 6941 p = "NEWL"; | |
| 6942 break; | |
| 6943 default: | |
| 6944 sprintf(buf + STRLEN(buf), "corrupt %d", OP(op)); | |
| 6945 p = NULL; | |
| 6946 break; | |
| 6947 } | |
| 6948 if (p != NULL) | |
| 4444 | 6949 STRCAT(buf, p); |
| 6950 return (char_u *)buf; | |
| 7 | 6951 } |
| 4444 | 6952 #endif /* DEBUG */ |
| 7 | 6953 |
| 6203 | 6954 /* |
| 6955 * Used in a place where no * or \+ can follow. | |
| 6956 */ | |
| 6957 static int | |
|
7833
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
6958 re_mult_next(char *what) |
| 6203 | 6959 { |
| 6960 if (re_multi_type(peekchr()) == MULTI_MULT) | |
| 6961 EMSG2_RET_FAIL(_("E888: (NFA regexp) cannot repeat %s"), what); | |
| 6962 return OK; | |
| 6963 } | |
| 6964 | |
| 7 | 6965 #ifdef FEAT_MBYTE |
|
7805
0b6c37dd858d
commit https://github.com/vim/vim/commit/baaa7e9ec7398a813e21285c272fa99792642077
Christian Brabandt <cb@256bit.org>
parents:
7009
diff
changeset
|
6966 static void mb_decompose(int c, int *c1, int *c2, int *c3); |
| 7 | 6967 |
| 6968 typedef struct | |
| 6969 { | |
| 6970 int a, b, c; | |
| 6971 } decomp_T; | |
| 6972 | |
| 6973 | |
| 6974 /* 0xfb20 - 0xfb4f */ | |
| 297 | 6975 static decomp_T decomp_table[0xfb4f-0xfb20+1] = |
| 7 | 6976 { |
| 6977 {0x5e2,0,0}, /* 0xfb20 alt ayin */ | |
| 6978 {0x5d0,0,0}, /* 0xfb21 alt alef */ | |
| 6979 {0x5d3,0,0}, /* 0xfb22 alt dalet */ | |
| 6980 {0x5d4,0,0}, /* 0xfb23 alt he */ | |
| 6981 {0x5db,0,0}, /* 0xfb24 alt kaf */ | |
| 6982 {0x5dc,0,0}, /* 0xfb25 alt lamed */ | |
| 6983 {0x5dd,0,0}, /* 0xfb26 alt mem-sofit */ | |
| 6984 {0x5e8,0,0}, /* 0xfb27 alt resh */ | |
| 6985 {0x5ea,0,0}, /* 0xfb28 alt tav */ | |
| 6986 {'+', 0, 0}, /* 0xfb29 alt plus */ | |
| 6987 {0x5e9, 0x5c1, 0}, /* 0xfb2a shin+shin-dot */ | |
| 6988 {0x5e9, 0x5c2, 0}, /* 0xfb2b shin+sin-dot */ | |
| 6989 {0x5e9, 0x5c1, 0x5bc}, /* 0xfb2c shin+shin-dot+dagesh */ | |
| 6990 {0x5e9, 0x5c2, 0x5bc}, /* 0xfb2d shin+sin-dot+dagesh */ | |
| 6991 {0x5d0, 0x5b7, 0}, /* 0xfb2e alef+patah */ | |
| 6992 {0x5d0, 0x5b8, 0}, /* 0xfb2f alef+qamats */ | |
| 6993 {0x5d0, 0x5b4, 0}, /* 0xfb30 alef+hiriq */ | |
| 6994 {0x5d1, 0x5bc, 0}, /* 0xfb31 bet+dagesh */ | |
| 6995 {0x5d2, 0x5bc, 0}, /* 0xfb32 gimel+dagesh */ | |
| 6996 {0x5d3, 0x5bc, 0}, /* 0xfb33 dalet+dagesh */ | |
| 6997 {0x5d4, 0x5bc, 0}, /* 0xfb34 he+dagesh */ | |
| 6998 {0x5d5, 0x5bc, 0}, /* 0xfb35 vav+dagesh */ | |
| 6999 {0x5d6, 0x5bc, 0}, /* 0xfb36 zayin+dagesh */ | |
| 7000 {0xfb37, 0, 0}, /* 0xfb37 -- UNUSED */ | |
| 7001 {0x5d8, 0x5bc, 0}, /* 0xfb38 tet+dagesh */ | |
| 7002 {0x5d9, 0x5bc, 0}, /* 0xfb39 yud+dagesh */ | |
| 7003 {0x5da, 0x5bc, 0}, /* 0xfb3a kaf sofit+dagesh */ | |
| 7004 {0x5db, 0x5bc, 0}, /* 0xfb3b kaf+dagesh */ | |
| 7005 {0x5dc, 0x5bc, 0}, /* 0xfb3c lamed+dagesh */ | |
| 7006 {0xfb3d, 0, 0}, /* 0xfb3d -- UNUSED */ | |
| 7007 {0x5de, 0x5bc, 0}, /* 0xfb3e mem+dagesh */ | |
| 7008 {0xfb3f, 0, 0}, /* 0xfb3f -- UNUSED */ | |
| 7009 {0x5e0, 0x5bc, 0}, /* 0xfb40 nun+dagesh */ | |
| 7010 {0x5e1, 0x5bc, 0}, /* 0xfb41 samech+dagesh */ | |
| 7011 {0xfb42, 0, 0}, /* 0xfb42 -- UNUSED */ | |
| 7012 {0x5e3, 0x5bc, 0}, /* 0xfb43 pe sofit+dagesh */ | |
| 7013 {0x5e4, 0x5bc,0}, /* 0xfb44 pe+dagesh */ | |
| 7014 {0xfb45, 0, 0}, /* 0xfb45 -- UNUSED */ | |
| 7015 {0x5e6, 0x5bc, 0}, /* 0xfb46 tsadi+dagesh */ | |
| 7016 {0x5e7, 0x5bc, 0}, /* 0xfb47 qof+dagesh */ | |
| 7017 {0x5e8, 0x5bc, 0}, /* 0xfb48 resh+dagesh */ | |
| 7018 {0x5e9, 0x5bc, 0}, /* 0xfb49 shin+dagesh */ | |
| 7019 {0x5ea, 0x5bc, 0}, /* 0xfb4a tav+dagesh */ | |
| 7020 {0x5d5, 0x5b9, 0}, /* 0xfb4b vav+holam */ | |
| 7021 {0x5d1, 0x5bf, 0}, /* 0xfb4c bet+rafe */ | |
| 7022 {0x5db, 0x5bf, 0}, /* 0xfb4d kaf+rafe */ | |
| 7023 {0x5e4, 0x5bf, 0}, /* 0xfb4e pe+rafe */ | |
| 7024 {0x5d0, 0x5dc, 0} /* 0xfb4f alef-lamed */ | |
| 7025 }; | |
| 7026 | |
| 7027 static void | |
|
7833
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
7028 mb_decompose(int c, int *c1, int *c2, int *c3) |
| 7 | 7029 { |
| 7030 decomp_T d; | |
| 7031 | |
|
4505
d037b9cbdaaa
updated for version 7.3.1000
Bram Moolenaar <bram@vim.org>
parents:
4466
diff
changeset
|
7032 if (c >= 0xfb20 && c <= 0xfb4f) |
| 7 | 7033 { |
| 7034 d = decomp_table[c - 0xfb20]; | |
| 7035 *c1 = d.a; | |
| 7036 *c2 = d.b; | |
| 7037 *c3 = d.c; | |
| 7038 } | |
| 7039 else | |
| 7040 { | |
| 7041 *c1 = c; | |
| 7042 *c2 = *c3 = 0; | |
| 7043 } | |
| 7044 } | |
| 7045 #endif | |
| 7046 | |
| 7047 /* | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7048 * Compare two strings, ignore case if rex.reg_ic set. |
| 7 | 7049 * Return 0 if strings match, non-zero otherwise. |
| 7050 * Correct the length "*n" when composing characters are ignored. | |
| 7051 */ | |
| 7052 static int | |
|
7833
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
7053 cstrncmp(char_u *s1, char_u *s2, int *n) |
| 7 | 7054 { |
| 7055 int result; | |
| 7056 | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7057 if (!rex.reg_ic) |
| 7 | 7058 result = STRNCMP(s1, s2, *n); |
| 7059 else | |
| 7060 result = MB_STRNICMP(s1, s2, *n); | |
| 7061 | |
| 7062 #ifdef FEAT_MBYTE | |
| 7063 /* if it failed and it's utf8 and we want to combineignore: */ | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7064 if (result != 0 && enc_utf8 && rex.reg_icombine) |
| 7 | 7065 { |
| 7066 char_u *str1, *str2; | |
| 7067 int c1, c2, c11, c12; | |
| 7068 int junk; | |
| 7069 | |
| 7070 /* we have to handle the strcmp ourselves, since it is necessary to | |
| 7071 * deal with the composing characters by ignoring them: */ | |
| 7072 str1 = s1; | |
| 7073 str2 = s2; | |
| 7074 c1 = c2 = 0; | |
| 507 | 7075 while ((int)(str1 - s1) < *n) |
| 7 | 7076 { |
| 7077 c1 = mb_ptr2char_adv(&str1); | |
| 7078 c2 = mb_ptr2char_adv(&str2); | |
| 7079 | |
| 7080 /* decompose the character if necessary, into 'base' characters | |
| 7081 * because I don't care about Arabic, I will hard-code the Hebrew | |
| 7082 * which I *do* care about! So sue me... */ | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7083 if (c1 != c2 && (!rex.reg_ic || utf_fold(c1) != utf_fold(c2))) |
| 7 | 7084 { |
| 7085 /* decomposition necessary? */ | |
| 7086 mb_decompose(c1, &c11, &junk, &junk); | |
| 7087 mb_decompose(c2, &c12, &junk, &junk); | |
| 7088 c1 = c11; | |
| 7089 c2 = c12; | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7090 if (c11 != c12 |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7091 && (!rex.reg_ic || utf_fold(c11) != utf_fold(c12))) |
| 7 | 7092 break; |
| 7093 } | |
| 7094 } | |
| 7095 result = c2 - c1; | |
| 7096 if (result == 0) | |
| 7097 *n = (int)(str2 - s2); | |
| 7098 } | |
| 7099 #endif | |
| 7100 | |
| 7101 return result; | |
| 7102 } | |
| 7103 | |
| 7104 /* | |
| 7105 * cstrchr: This function is used a lot for simple searches, keep it fast! | |
| 7106 */ | |
| 7107 static char_u * | |
|
7833
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
7108 cstrchr(char_u *s, int c) |
| 7 | 7109 { |
| 7110 char_u *p; | |
| 7111 int cc; | |
| 7112 | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7113 if (!rex.reg_ic |
| 7 | 7114 #ifdef FEAT_MBYTE |
| 7115 || (!enc_utf8 && mb_char2len(c) > 1) | |
| 7116 #endif | |
| 7117 ) | |
| 7118 return vim_strchr(s, c); | |
| 7119 | |
| 7120 /* tolower() and toupper() can be slow, comparing twice should be a lot | |
| 7121 * faster (esp. when using MS Visual C++!). | |
| 7122 * For UTF-8 need to use folded case. */ | |
| 7123 #ifdef FEAT_MBYTE | |
| 7124 if (enc_utf8 && c > 0x80) | |
| 7125 cc = utf_fold(c); | |
| 7126 else | |
| 7127 #endif | |
| 1347 | 7128 if (MB_ISUPPER(c)) |
| 7129 cc = MB_TOLOWER(c); | |
| 7130 else if (MB_ISLOWER(c)) | |
| 7131 cc = MB_TOUPPER(c); | |
| 7 | 7132 else |
| 7133 return vim_strchr(s, c); | |
| 7134 | |
| 7135 #ifdef FEAT_MBYTE | |
| 7136 if (has_mbyte) | |
| 7137 { | |
| 474 | 7138 for (p = s; *p != NUL; p += (*mb_ptr2len)(p)) |
| 7 | 7139 { |
| 7140 if (enc_utf8 && c > 0x80) | |
| 7141 { | |
| 7142 if (utf_fold(utf_ptr2char(p)) == cc) | |
| 7143 return p; | |
| 7144 } | |
| 7145 else if (*p == c || *p == cc) | |
| 7146 return p; | |
| 7147 } | |
| 7148 } | |
| 7149 else | |
| 7150 #endif | |
| 7151 /* Faster version for when there are no multi-byte characters. */ | |
| 7152 for (p = s; *p != NUL; ++p) | |
| 7153 if (*p == c || *p == cc) | |
| 7154 return p; | |
| 7155 | |
| 7156 return NULL; | |
| 7157 } | |
| 7158 | |
| 7159 /*************************************************************** | |
| 7160 * regsub stuff * | |
| 7161 ***************************************************************/ | |
| 7162 | |
| 7163 /* | |
| 7164 * We should define ftpr as a pointer to a function returning a pointer to | |
| 7165 * a function returning a pointer to a function ... | |
| 7166 * This is impossible, so we declare a pointer to a function returning a | |
| 7167 * pointer to a function returning void. This should work for all compilers. | |
| 7168 */ | |
|
7805
0b6c37dd858d
commit https://github.com/vim/vim/commit/baaa7e9ec7398a813e21285c272fa99792642077
Christian Brabandt <cb@256bit.org>
parents:
7009
diff
changeset
|
7169 typedef void (*(*fptr_T)(int *, int))(); |
|
0b6c37dd858d
commit https://github.com/vim/vim/commit/baaa7e9ec7398a813e21285c272fa99792642077
Christian Brabandt <cb@256bit.org>
parents:
7009
diff
changeset
|
7170 |
|
0b6c37dd858d
commit https://github.com/vim/vim/commit/baaa7e9ec7398a813e21285c272fa99792642077
Christian Brabandt <cb@256bit.org>
parents:
7009
diff
changeset
|
7171 static fptr_T do_upper(int *, int); |
|
0b6c37dd858d
commit https://github.com/vim/vim/commit/baaa7e9ec7398a813e21285c272fa99792642077
Christian Brabandt <cb@256bit.org>
parents:
7009
diff
changeset
|
7172 static fptr_T do_Upper(int *, int); |
|
0b6c37dd858d
commit https://github.com/vim/vim/commit/baaa7e9ec7398a813e21285c272fa99792642077
Christian Brabandt <cb@256bit.org>
parents:
7009
diff
changeset
|
7173 static fptr_T do_lower(int *, int); |
|
0b6c37dd858d
commit https://github.com/vim/vim/commit/baaa7e9ec7398a813e21285c272fa99792642077
Christian Brabandt <cb@256bit.org>
parents:
7009
diff
changeset
|
7174 static fptr_T do_Lower(int *, int); |
|
0b6c37dd858d
commit https://github.com/vim/vim/commit/baaa7e9ec7398a813e21285c272fa99792642077
Christian Brabandt <cb@256bit.org>
parents:
7009
diff
changeset
|
7175 |
|
9589
bf204ab1ce7d
commit https://github.com/vim/vim/commit/72ab729c3dcdea0fba44d8e676602c847e841bcd
Christian Brabandt <cb@256bit.org>
parents:
9015
diff
changeset
|
7176 static int vim_regsub_both(char_u *source, typval_T *expr, char_u *dest, int copy, int magic, int backslash); |
| 7 | 7177 |
| 772 | 7178 static fptr_T |
|
7833
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
7179 do_upper(int *d, int c) |
| 7 | 7180 { |
| 772 | 7181 *d = MB_TOUPPER(c); |
| 7182 | |
| 7183 return (fptr_T)NULL; | |
| 7 | 7184 } |
| 7185 | |
| 772 | 7186 static fptr_T |
|
7833
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
7187 do_Upper(int *d, int c) |
| 7 | 7188 { |
| 772 | 7189 *d = MB_TOUPPER(c); |
| 7190 | |
| 7191 return (fptr_T)do_Upper; | |
| 7192 } | |
| 7193 | |
| 7194 static fptr_T | |
|
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c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
7195 do_lower(int *d, int c) |
| 772 | 7196 { |
| 7197 *d = MB_TOLOWER(c); | |
| 7198 | |
| 7199 return (fptr_T)NULL; | |
| 7200 } | |
| 7201 | |
| 7202 static fptr_T | |
|
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|
7203 do_Lower(int *d, int c) |
| 772 | 7204 { |
| 7205 *d = MB_TOLOWER(c); | |
| 7206 | |
| 7207 return (fptr_T)do_Lower; | |
| 7 | 7208 } |
| 7209 | |
| 7210 /* | |
| 7211 * regtilde(): Replace tildes in the pattern by the old pattern. | |
| 7212 * | |
| 7213 * Short explanation of the tilde: It stands for the previous replacement | |
| 7214 * pattern. If that previous pattern also contains a ~ we should go back a | |
| 7215 * step further... But we insert the previous pattern into the current one | |
| 7216 * and remember that. | |
| 772 | 7217 * This still does not handle the case where "magic" changes. So require the |
| 7218 * user to keep his hands off of "magic". | |
| 7 | 7219 * |
| 7220 * The tildes are parsed once before the first call to vim_regsub(). | |
| 7221 */ | |
| 7222 char_u * | |
|
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|
7223 regtilde(char_u *source, int magic) |
| 7 | 7224 { |
| 7225 char_u *newsub = source; | |
| 7226 char_u *tmpsub; | |
| 7227 char_u *p; | |
| 7228 int len; | |
| 7229 int prevlen; | |
| 7230 | |
| 7231 for (p = newsub; *p; ++p) | |
| 7232 { | |
| 7233 if ((*p == '~' && magic) || (*p == '\\' && *(p + 1) == '~' && !magic)) | |
| 7234 { | |
| 7235 if (reg_prev_sub != NULL) | |
| 7236 { | |
| 7237 /* length = len(newsub) - 1 + len(prev_sub) + 1 */ | |
| 7238 prevlen = (int)STRLEN(reg_prev_sub); | |
| 7239 tmpsub = alloc((unsigned)(STRLEN(newsub) + prevlen)); | |
| 7240 if (tmpsub != NULL) | |
| 7241 { | |
| 7242 /* copy prefix */ | |
| 7243 len = (int)(p - newsub); /* not including ~ */ | |
| 7244 mch_memmove(tmpsub, newsub, (size_t)len); | |
| 1209 | 7245 /* interpret tilde */ |
| 7 | 7246 mch_memmove(tmpsub + len, reg_prev_sub, (size_t)prevlen); |
| 7247 /* copy postfix */ | |
| 7248 if (!magic) | |
| 7249 ++p; /* back off \ */ | |
| 7250 STRCPY(tmpsub + len + prevlen, p + 1); | |
| 7251 | |
| 7252 if (newsub != source) /* already allocated newsub */ | |
| 7253 vim_free(newsub); | |
| 7254 newsub = tmpsub; | |
| 7255 p = newsub + len + prevlen; | |
| 7256 } | |
| 7257 } | |
| 7258 else if (magic) | |
| 1621 | 7259 STRMOVE(p, p + 1); /* remove '~' */ |
| 7 | 7260 else |
| 1621 | 7261 STRMOVE(p, p + 2); /* remove '\~' */ |
| 7 | 7262 --p; |
| 7263 } | |
| 7264 else | |
| 7265 { | |
| 7266 if (*p == '\\' && p[1]) /* skip escaped characters */ | |
| 7267 ++p; | |
| 7268 #ifdef FEAT_MBYTE | |
| 7269 if (has_mbyte) | |
| 474 | 7270 p += (*mb_ptr2len)(p) - 1; |
| 7 | 7271 #endif |
| 7272 } | |
| 7273 } | |
| 7274 | |
| 7275 vim_free(reg_prev_sub); | |
| 7276 if (newsub != source) /* newsub was allocated, just keep it */ | |
| 7277 reg_prev_sub = newsub; | |
| 7278 else /* no ~ found, need to save newsub */ | |
| 7279 reg_prev_sub = vim_strsave(newsub); | |
| 7280 return newsub; | |
| 7281 } | |
| 7282 | |
| 7283 #ifdef FEAT_EVAL | |
| 7284 static int can_f_submatch = FALSE; /* TRUE when submatch() can be used */ | |
| 7285 | |
|
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|
7286 /* These pointers are used for reg_submatch(). Needed for when the |
|
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|
7287 * substitution string is an expression that contains a call to substitute() |
|
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|
7288 * and submatch(). */ |
|
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|
7289 typedef struct { |
|
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|
7290 regmatch_T *sm_match; |
|
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|
7291 regmmatch_T *sm_mmatch; |
|
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7292 linenr_T sm_firstlnum; |
|
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7293 linenr_T sm_maxline; |
|
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|
7294 int sm_line_lbr; |
|
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7295 } regsubmatch_T; |
|
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|
7296 |
|
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|
7297 static regsubmatch_T rsm; /* can only be used when can_f_submatch is TRUE */ |
| 7 | 7298 #endif |
| 7299 | |
| 7300 #if defined(FEAT_MODIFY_FNAME) || defined(FEAT_EVAL) || defined(PROTO) | |
|
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7301 |
|
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|
7302 /* |
|
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|
7303 * Put the submatches in "argv[0]" which is a list passed into call_func() by |
|
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|
7304 * vim_regsub_both(). |
|
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|
7305 */ |
|
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|
7306 static int |
|
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|
7307 fill_submatch_list(int argc UNUSED, typval_T *argv, int argcount) |
|
172131507c85
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|
7308 { |
|
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|
7309 listitem_T *li; |
|
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|
7310 int i; |
|
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|
7311 char_u *s; |
|
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|
7312 |
|
172131507c85
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7313 if (argcount == 0) |
|
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7314 /* called function doesn't take an argument */ |
|
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7315 return 0; |
|
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7316 |
|
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7317 /* Relies on sl_list to be the first item in staticList10_T. */ |
|
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7318 init_static_list((staticList10_T *)(argv->vval.v_list)); |
|
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7319 |
|
172131507c85
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|
7320 /* There are always 10 list items in staticList10_T. */ |
|
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|
7321 li = argv->vval.v_list->lv_first; |
|
172131507c85
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|
7322 for (i = 0; i < 10; ++i) |
|
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|
7323 { |
|
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changeset
|
7324 s = rsm.sm_match->startp[i]; |
|
d76ccdacb41e
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changeset
|
7325 if (s == NULL || rsm.sm_match->endp[i] == NULL) |
|
9626
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|
7326 s = NULL; |
|
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|
7327 else |
|
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|
7328 s = vim_strnsave(s, (int)(rsm.sm_match->endp[i] - s)); |
|
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changeset
|
7329 li->li_tv.v_type = VAR_STRING; |
|
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changeset
|
7330 li->li_tv.vval.v_string = s; |
|
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changeset
|
7331 li = li->li_next; |
|
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|
7332 } |
|
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changeset
|
7333 return 1; |
|
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|
7334 } |
|
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changeset
|
7335 |
|
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changeset
|
7336 static void |
|
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changeset
|
7337 clear_submatch_list(staticList10_T *sl) |
|
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|
7338 { |
|
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|
7339 int i; |
|
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changeset
|
7340 |
|
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changeset
|
7341 for (i = 0; i < 10; ++i) |
|
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changeset
|
7342 vim_free(sl->sl_items[i].li_tv.vval.v_string); |
|
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|
7343 } |
|
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changeset
|
7344 |
| 7 | 7345 /* |
| 7346 * vim_regsub() - perform substitutions after a vim_regexec() or | |
| 7347 * vim_regexec_multi() match. | |
| 7348 * | |
| 7349 * If "copy" is TRUE really copy into "dest". | |
| 7350 * If "copy" is FALSE nothing is copied, this is just to find out the length | |
| 7351 * of the result. | |
| 7352 * | |
| 7353 * If "backslash" is TRUE, a backslash will be removed later, need to double | |
| 7354 * them to keep them, and insert a backslash before a CR to avoid it being | |
| 7355 * replaced with a line break later. | |
| 7356 * | |
| 7357 * Note: The matched text must not change between the call of | |
| 7358 * vim_regexec()/vim_regexec_multi() and vim_regsub()! It would make the back | |
| 7359 * references invalid! | |
| 7360 * | |
| 7361 * Returns the size of the replacement, including terminating NUL. | |
| 7362 */ | |
| 7363 int | |
|
7833
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diff
changeset
|
7364 vim_regsub( |
|
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changeset
|
7365 regmatch_T *rmp, |
|
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|
7366 char_u *source, |
|
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|
7367 typval_T *expr, |
|
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|
7368 char_u *dest, |
|
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|
7369 int copy, |
|
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|
7370 int magic, |
|
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|
7371 int backslash) |
| 7 | 7372 { |
|
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|
7373 int result; |
|
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|
7374 regexec_T rex_save; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7375 int rex_in_use_save = rex_in_use; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7376 |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7377 if (rex_in_use) |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7378 /* Being called recursively, save the state. */ |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7379 rex_save = rex; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7380 rex_in_use = TRUE; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7381 |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7382 rex.reg_match = rmp; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7383 rex.reg_mmatch = NULL; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7384 rex.reg_maxline = 0; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7385 rex.reg_buf = curbuf; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7386 rex.reg_line_lbr = TRUE; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7387 result = vim_regsub_both(source, expr, dest, copy, magic, backslash); |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7388 |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7389 rex_in_use = rex_in_use_save; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7390 if (rex_in_use) |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7391 rex = rex_save; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7392 |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7393 return result; |
| 7 | 7394 } |
| 7395 #endif | |
| 7396 | |
| 7397 int | |
|
7833
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
7398 vim_regsub_multi( |
|
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
7399 regmmatch_T *rmp, |
|
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
7400 linenr_T lnum, |
|
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
7401 char_u *source, |
|
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
7402 char_u *dest, |
|
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
7403 int copy, |
|
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
7404 int magic, |
|
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
7405 int backslash) |
| 7 | 7406 { |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7407 int result; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7408 regexec_T rex_save; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7409 int rex_in_use_save = rex_in_use; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7410 |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7411 if (rex_in_use) |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7412 /* Being called recursively, save the state. */ |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7413 rex_save = rex; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7414 rex_in_use = TRUE; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7415 |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7416 rex.reg_match = NULL; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7417 rex.reg_mmatch = rmp; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7418 rex.reg_buf = curbuf; /* always works on the current buffer! */ |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7419 rex.reg_firstlnum = lnum; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7420 rex.reg_maxline = curbuf->b_ml.ml_line_count - lnum; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7421 rex.reg_line_lbr = FALSE; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7422 result = vim_regsub_both(source, NULL, dest, copy, magic, backslash); |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7423 |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7424 rex_in_use = rex_in_use_save; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7425 if (rex_in_use) |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7426 rex = rex_save; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7427 |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7428 return result; |
| 7 | 7429 } |
| 7430 | |
| 7431 static int | |
|
7833
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
7432 vim_regsub_both( |
|
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
7433 char_u *source, |
|
9589
bf204ab1ce7d
commit https://github.com/vim/vim/commit/72ab729c3dcdea0fba44d8e676602c847e841bcd
Christian Brabandt <cb@256bit.org>
parents:
9015
diff
changeset
|
7434 typval_T *expr, |
|
7833
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
7435 char_u *dest, |
|
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
7436 int copy, |
|
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
7437 int magic, |
|
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
7438 int backslash) |
| 7 | 7439 { |
| 7440 char_u *src; | |
| 7441 char_u *dst; | |
| 7442 char_u *s; | |
| 7443 int c; | |
| 772 | 7444 int cc; |
| 7 | 7445 int no = -1; |
| 4244 | 7446 fptr_T func_all = (fptr_T)NULL; |
| 7447 fptr_T func_one = (fptr_T)NULL; | |
| 7 | 7448 linenr_T clnum = 0; /* init for GCC */ |
| 7449 int len = 0; /* init for GCC */ | |
| 7450 #ifdef FEAT_EVAL | |
|
9589
bf204ab1ce7d
commit https://github.com/vim/vim/commit/72ab729c3dcdea0fba44d8e676602c847e841bcd
Christian Brabandt <cb@256bit.org>
parents:
9015
diff
changeset
|
7451 static char_u *eval_result = NULL; |
| 7 | 7452 #endif |
| 7453 | |
| 7454 /* Be paranoid... */ | |
|
9589
bf204ab1ce7d
commit https://github.com/vim/vim/commit/72ab729c3dcdea0fba44d8e676602c847e841bcd
Christian Brabandt <cb@256bit.org>
parents:
9015
diff
changeset
|
7455 if ((source == NULL && expr == NULL) || dest == NULL) |
| 7 | 7456 { |
| 7457 EMSG(_(e_null)); | |
| 7458 return 0; | |
| 7459 } | |
| 7460 if (prog_magic_wrong()) | |
| 7461 return 0; | |
| 7462 src = source; | |
| 7463 dst = dest; | |
| 7464 | |
| 7465 /* | |
| 7466 * When the substitute part starts with "\=" evaluate it as an expression. | |
| 7467 */ | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7468 if (expr != NULL || (source[0] == '\\' && source[1] == '=')) |
| 7 | 7469 { |
| 7470 #ifdef FEAT_EVAL | |
| 7471 /* To make sure that the length doesn't change between checking the | |
| 7472 * length and copying the string, and to speed up things, the | |
| 7473 * resulting string is saved from the call with "copy" == FALSE to the | |
| 7474 * call with "copy" == TRUE. */ | |
| 7475 if (copy) | |
| 7476 { | |
| 7477 if (eval_result != NULL) | |
| 7478 { | |
| 7479 STRCPY(dest, eval_result); | |
| 7480 dst += STRLEN(eval_result); | |
| 7481 vim_free(eval_result); | |
| 7482 eval_result = NULL; | |
| 7483 } | |
| 7484 } | |
| 7485 else | |
| 7486 { | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7487 int prev_can_f_submatch = can_f_submatch; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7488 regsubmatch_T rsm_save; |
| 7 | 7489 |
| 7490 vim_free(eval_result); | |
| 7491 | |
| 7492 /* The expression may contain substitute(), which calls us | |
| 7493 * recursively. Make sure submatch() gets the text from the first | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7494 * level. */ |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7495 if (can_f_submatch) |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7496 rsm_save = rsm; |
| 7 | 7497 can_f_submatch = TRUE; |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7498 rsm.sm_match = rex.reg_match; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7499 rsm.sm_mmatch = rex.reg_mmatch; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7500 rsm.sm_firstlnum = rex.reg_firstlnum; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7501 rsm.sm_maxline = rex.reg_maxline; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7502 rsm.sm_line_lbr = rex.reg_line_lbr; |
| 7 | 7503 |
|
9589
bf204ab1ce7d
commit https://github.com/vim/vim/commit/72ab729c3dcdea0fba44d8e676602c847e841bcd
Christian Brabandt <cb@256bit.org>
parents:
9015
diff
changeset
|
7504 if (expr != NULL) |
|
bf204ab1ce7d
commit https://github.com/vim/vim/commit/72ab729c3dcdea0fba44d8e676602c847e841bcd
Christian Brabandt <cb@256bit.org>
parents:
9015
diff
changeset
|
7505 { |
|
9626
172131507c85
commit https://github.com/vim/vim/commit/df48fb456fb6bf63d94cad9b302ff01d8ee8d311
Christian Brabandt <cb@256bit.org>
parents:
9589
diff
changeset
|
7506 typval_T argv[2]; |
|
9589
bf204ab1ce7d
commit https://github.com/vim/vim/commit/72ab729c3dcdea0fba44d8e676602c847e841bcd
Christian Brabandt <cb@256bit.org>
parents:
9015
diff
changeset
|
7507 int dummy; |
|
bf204ab1ce7d
commit https://github.com/vim/vim/commit/72ab729c3dcdea0fba44d8e676602c847e841bcd
Christian Brabandt <cb@256bit.org>
parents:
9015
diff
changeset
|
7508 char_u buf[NUMBUFLEN]; |
|
bf204ab1ce7d
commit https://github.com/vim/vim/commit/72ab729c3dcdea0fba44d8e676602c847e841bcd
Christian Brabandt <cb@256bit.org>
parents:
9015
diff
changeset
|
7509 typval_T rettv; |
|
9626
172131507c85
commit https://github.com/vim/vim/commit/df48fb456fb6bf63d94cad9b302ff01d8ee8d311
Christian Brabandt <cb@256bit.org>
parents:
9589
diff
changeset
|
7510 staticList10_T matchList; |
|
9589
bf204ab1ce7d
commit https://github.com/vim/vim/commit/72ab729c3dcdea0fba44d8e676602c847e841bcd
Christian Brabandt <cb@256bit.org>
parents:
9015
diff
changeset
|
7511 |
|
bf204ab1ce7d
commit https://github.com/vim/vim/commit/72ab729c3dcdea0fba44d8e676602c847e841bcd
Christian Brabandt <cb@256bit.org>
parents:
9015
diff
changeset
|
7512 rettv.v_type = VAR_STRING; |
|
bf204ab1ce7d
commit https://github.com/vim/vim/commit/72ab729c3dcdea0fba44d8e676602c847e841bcd
Christian Brabandt <cb@256bit.org>
parents:
9015
diff
changeset
|
7513 rettv.vval.v_string = NULL; |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7514 argv[0].v_type = VAR_LIST; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7515 argv[0].vval.v_list = &matchList.sl_list; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7516 matchList.sl_list.lv_len = 0; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7517 if (expr->v_type == VAR_FUNC) |
|
9589
bf204ab1ce7d
commit https://github.com/vim/vim/commit/72ab729c3dcdea0fba44d8e676602c847e841bcd
Christian Brabandt <cb@256bit.org>
parents:
9015
diff
changeset
|
7518 { |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7519 s = expr->vval.v_string; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7520 call_func(s, (int)STRLEN(s), &rettv, |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7521 1, argv, fill_submatch_list, |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7522 0L, 0L, &dummy, TRUE, NULL, NULL); |
|
9589
bf204ab1ce7d
commit https://github.com/vim/vim/commit/72ab729c3dcdea0fba44d8e676602c847e841bcd
Christian Brabandt <cb@256bit.org>
parents:
9015
diff
changeset
|
7523 } |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7524 else if (expr->v_type == VAR_PARTIAL) |
|
9589
bf204ab1ce7d
commit https://github.com/vim/vim/commit/72ab729c3dcdea0fba44d8e676602c847e841bcd
Christian Brabandt <cb@256bit.org>
parents:
9015
diff
changeset
|
7525 { |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7526 partial_T *partial = expr->vval.v_partial; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7527 |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7528 s = partial_name(partial); |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7529 call_func(s, (int)STRLEN(s), &rettv, |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7530 1, argv, fill_submatch_list, |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7531 0L, 0L, &dummy, TRUE, partial, NULL); |
|
9589
bf204ab1ce7d
commit https://github.com/vim/vim/commit/72ab729c3dcdea0fba44d8e676602c847e841bcd
Christian Brabandt <cb@256bit.org>
parents:
9015
diff
changeset
|
7532 } |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7533 if (matchList.sl_list.lv_len > 0) |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7534 /* fill_submatch_list() was called */ |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7535 clear_submatch_list(&matchList); |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7536 |
|
9589
bf204ab1ce7d
commit https://github.com/vim/vim/commit/72ab729c3dcdea0fba44d8e676602c847e841bcd
Christian Brabandt <cb@256bit.org>
parents:
9015
diff
changeset
|
7537 eval_result = get_tv_string_buf_chk(&rettv, buf); |
|
bf204ab1ce7d
commit https://github.com/vim/vim/commit/72ab729c3dcdea0fba44d8e676602c847e841bcd
Christian Brabandt <cb@256bit.org>
parents:
9015
diff
changeset
|
7538 if (eval_result != NULL) |
|
bf204ab1ce7d
commit https://github.com/vim/vim/commit/72ab729c3dcdea0fba44d8e676602c847e841bcd
Christian Brabandt <cb@256bit.org>
parents:
9015
diff
changeset
|
7539 eval_result = vim_strsave(eval_result); |
|
9626
172131507c85
commit https://github.com/vim/vim/commit/df48fb456fb6bf63d94cad9b302ff01d8ee8d311
Christian Brabandt <cb@256bit.org>
parents:
9589
diff
changeset
|
7540 clear_tv(&rettv); |
|
9589
bf204ab1ce7d
commit https://github.com/vim/vim/commit/72ab729c3dcdea0fba44d8e676602c847e841bcd
Christian Brabandt <cb@256bit.org>
parents:
9015
diff
changeset
|
7541 } |
|
bf204ab1ce7d
commit https://github.com/vim/vim/commit/72ab729c3dcdea0fba44d8e676602c847e841bcd
Christian Brabandt <cb@256bit.org>
parents:
9015
diff
changeset
|
7542 else |
|
bf204ab1ce7d
commit https://github.com/vim/vim/commit/72ab729c3dcdea0fba44d8e676602c847e841bcd
Christian Brabandt <cb@256bit.org>
parents:
9015
diff
changeset
|
7543 eval_result = eval_to_string(source + 2, NULL, TRUE); |
|
bf204ab1ce7d
commit https://github.com/vim/vim/commit/72ab729c3dcdea0fba44d8e676602c847e841bcd
Christian Brabandt <cb@256bit.org>
parents:
9015
diff
changeset
|
7544 |
| 7 | 7545 if (eval_result != NULL) |
| 7546 { | |
|
2125
b8744d1982d1
updated for version 7.2.407
Bram Moolenaar <bram@zimbu.org>
parents:
2012
diff
changeset
|
7547 int had_backslash = FALSE; |
|
b8744d1982d1
updated for version 7.2.407
Bram Moolenaar <bram@zimbu.org>
parents:
2012
diff
changeset
|
7548 |
| 39 | 7549 for (s = eval_result; *s != NUL; mb_ptr_adv(s)) |
| 7 | 7550 { |
| 2904 | 7551 /* Change NL to CR, so that it becomes a line break, |
| 7552 * unless called from vim_regexec_nl(). | |
| 7 | 7553 * Skip over a backslashed character. */ |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7554 if (*s == NL && !rsm.sm_line_lbr) |
| 7 | 7555 *s = CAR; |
| 7556 else if (*s == '\\' && s[1] != NUL) | |
|
2125
b8744d1982d1
updated for version 7.2.407
Bram Moolenaar <bram@zimbu.org>
parents:
2012
diff
changeset
|
7557 { |
| 7 | 7558 ++s; |
| 2173 | 7559 /* Change NL to CR here too, so that this works: |
| 7560 * :s/abc\\\ndef/\="aaa\\\nbbb"/ on text: | |
| 7561 * abc\ | |
| 7562 * def | |
| 2904 | 7563 * Not when called from vim_regexec_nl(). |
| 2173 | 7564 */ |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7565 if (*s == NL && !rsm.sm_line_lbr) |
| 2173 | 7566 *s = CAR; |
|
2125
b8744d1982d1
updated for version 7.2.407
Bram Moolenaar <bram@zimbu.org>
parents:
2012
diff
changeset
|
7567 had_backslash = TRUE; |
|
b8744d1982d1
updated for version 7.2.407
Bram Moolenaar <bram@zimbu.org>
parents:
2012
diff
changeset
|
7568 } |
|
b8744d1982d1
updated for version 7.2.407
Bram Moolenaar <bram@zimbu.org>
parents:
2012
diff
changeset
|
7569 } |
|
b8744d1982d1
updated for version 7.2.407
Bram Moolenaar <bram@zimbu.org>
parents:
2012
diff
changeset
|
7570 if (had_backslash && backslash) |
|
b8744d1982d1
updated for version 7.2.407
Bram Moolenaar <bram@zimbu.org>
parents:
2012
diff
changeset
|
7571 { |
|
b8744d1982d1
updated for version 7.2.407
Bram Moolenaar <bram@zimbu.org>
parents:
2012
diff
changeset
|
7572 /* Backslashes will be consumed, need to double them. */ |
|
b8744d1982d1
updated for version 7.2.407
Bram Moolenaar <bram@zimbu.org>
parents:
2012
diff
changeset
|
7573 s = vim_strsave_escaped(eval_result, (char_u *)"\\"); |
|
b8744d1982d1
updated for version 7.2.407
Bram Moolenaar <bram@zimbu.org>
parents:
2012
diff
changeset
|
7574 if (s != NULL) |
|
b8744d1982d1
updated for version 7.2.407
Bram Moolenaar <bram@zimbu.org>
parents:
2012
diff
changeset
|
7575 { |
|
b8744d1982d1
updated for version 7.2.407
Bram Moolenaar <bram@zimbu.org>
parents:
2012
diff
changeset
|
7576 vim_free(eval_result); |
|
b8744d1982d1
updated for version 7.2.407
Bram Moolenaar <bram@zimbu.org>
parents:
2012
diff
changeset
|
7577 eval_result = s; |
|
b8744d1982d1
updated for version 7.2.407
Bram Moolenaar <bram@zimbu.org>
parents:
2012
diff
changeset
|
7578 } |
| 7 | 7579 } |
| 7580 | |
| 7581 dst += STRLEN(eval_result); | |
| 7582 } | |
| 7583 | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7584 can_f_submatch = prev_can_f_submatch; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7585 if (can_f_submatch) |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7586 rsm = rsm_save; |
| 7 | 7587 } |
| 7588 #endif | |
| 7589 } | |
| 7590 else | |
| 7591 while ((c = *src++) != NUL) | |
| 7592 { | |
| 7593 if (c == '&' && magic) | |
| 7594 no = 0; | |
| 7595 else if (c == '\\' && *src != NUL) | |
| 7596 { | |
| 7597 if (*src == '&' && !magic) | |
| 7598 { | |
| 7599 ++src; | |
| 7600 no = 0; | |
| 7601 } | |
| 7602 else if ('0' <= *src && *src <= '9') | |
| 7603 { | |
| 7604 no = *src++ - '0'; | |
| 7605 } | |
| 7606 else if (vim_strchr((char_u *)"uUlLeE", *src)) | |
| 7607 { | |
| 7608 switch (*src++) | |
| 7609 { | |
| 4244 | 7610 case 'u': func_one = (fptr_T)do_upper; |
| 7 | 7611 continue; |
| 4244 | 7612 case 'U': func_all = (fptr_T)do_Upper; |
| 7 | 7613 continue; |
| 4244 | 7614 case 'l': func_one = (fptr_T)do_lower; |
| 7 | 7615 continue; |
| 4244 | 7616 case 'L': func_all = (fptr_T)do_Lower; |
| 7 | 7617 continue; |
| 7618 case 'e': | |
| 4244 | 7619 case 'E': func_one = func_all = (fptr_T)NULL; |
| 7 | 7620 continue; |
| 7621 } | |
| 7622 } | |
| 7623 } | |
| 7624 if (no < 0) /* Ordinary character. */ | |
| 7625 { | |
| 798 | 7626 if (c == K_SPECIAL && src[0] != NUL && src[1] != NUL) |
| 7627 { | |
| 1209 | 7628 /* Copy a special key as-is. */ |
| 798 | 7629 if (copy) |
| 7630 { | |
| 7631 *dst++ = c; | |
| 7632 *dst++ = *src++; | |
| 7633 *dst++ = *src++; | |
| 7634 } | |
| 7635 else | |
| 7636 { | |
| 7637 dst += 3; | |
| 7638 src += 2; | |
| 7639 } | |
| 7640 continue; | |
| 7641 } | |
| 7642 | |
| 7 | 7643 if (c == '\\' && *src != NUL) |
| 7644 { | |
| 7645 /* Check for abbreviations -- webb */ | |
| 7646 switch (*src) | |
| 7647 { | |
| 7648 case 'r': c = CAR; ++src; break; | |
| 7649 case 'n': c = NL; ++src; break; | |
| 7650 case 't': c = TAB; ++src; break; | |
| 7651 /* Oh no! \e already has meaning in subst pat :-( */ | |
| 7652 /* case 'e': c = ESC; ++src; break; */ | |
| 7653 case 'b': c = Ctrl_H; ++src; break; | |
| 7654 | |
| 7655 /* If "backslash" is TRUE the backslash will be removed | |
| 7656 * later. Used to insert a literal CR. */ | |
| 7657 default: if (backslash) | |
| 7658 { | |
| 7659 if (copy) | |
| 7660 *dst = '\\'; | |
| 7661 ++dst; | |
| 7662 } | |
| 7663 c = *src++; | |
| 7664 } | |
| 7665 } | |
| 798 | 7666 #ifdef FEAT_MBYTE |
| 7667 else if (has_mbyte) | |
| 7668 c = mb_ptr2char(src - 1); | |
| 7669 #endif | |
| 7 | 7670 |
| 7671 /* Write to buffer, if copy is set. */ | |
| 4244 | 7672 if (func_one != (fptr_T)NULL) |
| 7673 /* Turbo C complains without the typecast */ | |
| 7674 func_one = (fptr_T)(func_one(&cc, c)); | |
| 7675 else if (func_all != (fptr_T)NULL) | |
| 7676 /* Turbo C complains without the typecast */ | |
| 7677 func_all = (fptr_T)(func_all(&cc, c)); | |
| 7678 else /* just copy */ | |
| 772 | 7679 cc = c; |
| 7680 | |
| 7681 #ifdef FEAT_MBYTE | |
| 7682 if (has_mbyte) | |
| 7 | 7683 { |
|
2307
81527f127fb1
Fix: Composing characters in :s substitute text were dropped.
Bram Moolenaar <bram@vim.org>
parents:
2247
diff
changeset
|
7684 int totlen = mb_ptr2len(src - 1); |
|
81527f127fb1
Fix: Composing characters in :s substitute text were dropped.
Bram Moolenaar <bram@vim.org>
parents:
2247
diff
changeset
|
7685 |
| 7 | 7686 if (copy) |
| 772 | 7687 mb_char2bytes(cc, dst); |
| 7688 dst += mb_char2len(cc) - 1; | |
|
2307
81527f127fb1
Fix: Composing characters in :s substitute text were dropped.
Bram Moolenaar <bram@vim.org>
parents:
2247
diff
changeset
|
7689 if (enc_utf8) |
|
81527f127fb1
Fix: Composing characters in :s substitute text were dropped.
Bram Moolenaar <bram@vim.org>
parents:
2247
diff
changeset
|
7690 { |
|
81527f127fb1
Fix: Composing characters in :s substitute text were dropped.
Bram Moolenaar <bram@vim.org>
parents:
2247
diff
changeset
|
7691 int clen = utf_ptr2len(src - 1); |
|
81527f127fb1
Fix: Composing characters in :s substitute text were dropped.
Bram Moolenaar <bram@vim.org>
parents:
2247
diff
changeset
|
7692 |
|
81527f127fb1
Fix: Composing characters in :s substitute text were dropped.
Bram Moolenaar <bram@vim.org>
parents:
2247
diff
changeset
|
7693 /* If the character length is shorter than "totlen", there |
|
81527f127fb1
Fix: Composing characters in :s substitute text were dropped.
Bram Moolenaar <bram@vim.org>
parents:
2247
diff
changeset
|
7694 * are composing characters; copy them as-is. */ |
|
81527f127fb1
Fix: Composing characters in :s substitute text were dropped.
Bram Moolenaar <bram@vim.org>
parents:
2247
diff
changeset
|
7695 if (clen < totlen) |
|
81527f127fb1
Fix: Composing characters in :s substitute text were dropped.
Bram Moolenaar <bram@vim.org>
parents:
2247
diff
changeset
|
7696 { |
|
81527f127fb1
Fix: Composing characters in :s substitute text were dropped.
Bram Moolenaar <bram@vim.org>
parents:
2247
diff
changeset
|
7697 if (copy) |
|
81527f127fb1
Fix: Composing characters in :s substitute text were dropped.
Bram Moolenaar <bram@vim.org>
parents:
2247
diff
changeset
|
7698 mch_memmove(dst + 1, src - 1 + clen, |
|
81527f127fb1
Fix: Composing characters in :s substitute text were dropped.
Bram Moolenaar <bram@vim.org>
parents:
2247
diff
changeset
|
7699 (size_t)(totlen - clen)); |
|
81527f127fb1
Fix: Composing characters in :s substitute text were dropped.
Bram Moolenaar <bram@vim.org>
parents:
2247
diff
changeset
|
7700 dst += totlen - clen; |
|
81527f127fb1
Fix: Composing characters in :s substitute text were dropped.
Bram Moolenaar <bram@vim.org>
parents:
2247
diff
changeset
|
7701 } |
|
81527f127fb1
Fix: Composing characters in :s substitute text were dropped.
Bram Moolenaar <bram@vim.org>
parents:
2247
diff
changeset
|
7702 } |
|
81527f127fb1
Fix: Composing characters in :s substitute text were dropped.
Bram Moolenaar <bram@vim.org>
parents:
2247
diff
changeset
|
7703 src += totlen - 1; |
| 7 | 7704 } |
| 7705 else | |
| 7706 #endif | |
| 7707 if (copy) | |
| 772 | 7708 *dst = cc; |
| 7 | 7709 dst++; |
| 7710 } | |
| 7711 else | |
| 7712 { | |
| 7713 if (REG_MULTI) | |
| 7714 { | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7715 clnum = rex.reg_mmatch->startpos[no].lnum; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7716 if (clnum < 0 || rex.reg_mmatch->endpos[no].lnum < 0) |
| 7 | 7717 s = NULL; |
| 7718 else | |
| 7719 { | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7720 s = reg_getline(clnum) + rex.reg_mmatch->startpos[no].col; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7721 if (rex.reg_mmatch->endpos[no].lnum == clnum) |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7722 len = rex.reg_mmatch->endpos[no].col |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7723 - rex.reg_mmatch->startpos[no].col; |
| 7 | 7724 else |
| 7725 len = (int)STRLEN(s); | |
| 7726 } | |
| 7727 } | |
| 7728 else | |
| 7729 { | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7730 s = rex.reg_match->startp[no]; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7731 if (rex.reg_match->endp[no] == NULL) |
| 7 | 7732 s = NULL; |
| 7733 else | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7734 len = (int)(rex.reg_match->endp[no] - s); |
| 7 | 7735 } |
| 7736 if (s != NULL) | |
| 7737 { | |
| 7738 for (;;) | |
| 7739 { | |
| 7740 if (len == 0) | |
| 7741 { | |
| 7742 if (REG_MULTI) | |
| 7743 { | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7744 if (rex.reg_mmatch->endpos[no].lnum == clnum) |
| 7 | 7745 break; |
| 7746 if (copy) | |
| 7747 *dst = CAR; | |
| 7748 ++dst; | |
| 7749 s = reg_getline(++clnum); | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7750 if (rex.reg_mmatch->endpos[no].lnum == clnum) |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7751 len = rex.reg_mmatch->endpos[no].col; |
| 7 | 7752 else |
| 7753 len = (int)STRLEN(s); | |
| 7754 } | |
| 7755 else | |
| 7756 break; | |
| 7757 } | |
| 7758 else if (*s == NUL) /* we hit NUL. */ | |
| 7759 { | |
| 7760 if (copy) | |
| 7761 EMSG(_(e_re_damg)); | |
| 7762 goto exit; | |
| 7763 } | |
| 7764 else | |
| 7765 { | |
| 7766 if (backslash && (*s == CAR || *s == '\\')) | |
| 7767 { | |
| 7768 /* | |
| 7769 * Insert a backslash in front of a CR, otherwise | |
| 7770 * it will be replaced by a line break. | |
| 7771 * Number of backslashes will be halved later, | |
| 7772 * double them here. | |
| 7773 */ | |
| 7774 if (copy) | |
| 7775 { | |
| 7776 dst[0] = '\\'; | |
| 7777 dst[1] = *s; | |
| 7778 } | |
| 7779 dst += 2; | |
| 7780 } | |
| 7781 else | |
| 7782 { | |
| 772 | 7783 #ifdef FEAT_MBYTE |
| 7784 if (has_mbyte) | |
| 7785 c = mb_ptr2char(s); | |
| 7786 else | |
| 7787 #endif | |
| 7788 c = *s; | |
| 7789 | |
| 4244 | 7790 if (func_one != (fptr_T)NULL) |
| 7791 /* Turbo C complains without the typecast */ | |
| 7792 func_one = (fptr_T)(func_one(&cc, c)); | |
| 7793 else if (func_all != (fptr_T)NULL) | |
| 7794 /* Turbo C complains without the typecast */ | |
| 7795 func_all = (fptr_T)(func_all(&cc, c)); | |
| 7796 else /* just copy */ | |
| 772 | 7797 cc = c; |
| 7798 | |
| 7799 #ifdef FEAT_MBYTE | |
| 7800 if (has_mbyte) | |
| 7 | 7801 { |
| 1332 | 7802 int l; |
| 7803 | |
| 7804 /* Copy composing characters separately, one | |
| 7805 * at a time. */ | |
| 7806 if (enc_utf8) | |
| 7807 l = utf_ptr2len(s) - 1; | |
| 7808 else | |
| 7809 l = mb_ptr2len(s) - 1; | |
| 772 | 7810 |
| 7811 s += l; | |
| 7812 len -= l; | |
| 7813 if (copy) | |
| 7814 mb_char2bytes(cc, dst); | |
| 7815 dst += mb_char2len(cc) - 1; | |
| 7 | 7816 } |
| 772 | 7817 else |
| 7818 #endif | |
| 7819 if (copy) | |
| 7820 *dst = cc; | |
| 7821 dst++; | |
| 7 | 7822 } |
| 772 | 7823 |
| 7 | 7824 ++s; |
| 7825 --len; | |
| 7826 } | |
| 7827 } | |
| 7828 } | |
| 7829 no = -1; | |
| 7830 } | |
| 7831 } | |
| 7832 if (copy) | |
| 7833 *dst = NUL; | |
| 7834 | |
| 7835 exit: | |
| 7836 return (int)((dst - dest) + 1); | |
| 7837 } | |
| 7838 | |
| 7839 #ifdef FEAT_EVAL | |
|
7805
0b6c37dd858d
commit https://github.com/vim/vim/commit/baaa7e9ec7398a813e21285c272fa99792642077
Christian Brabandt <cb@256bit.org>
parents:
7009
diff
changeset
|
7840 static char_u *reg_getline_submatch(linenr_T lnum); |
| 2012 | 7841 |
| 7 | 7842 /* |
| 2011 | 7843 * Call reg_getline() with the line numbers from the submatch. If a |
| 7844 * substitute() was used the reg_maxline and other values have been | |
| 7845 * overwritten. | |
| 7846 */ | |
| 7847 static char_u * | |
|
7833
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
7848 reg_getline_submatch(linenr_T lnum) |
| 2011 | 7849 { |
| 7850 char_u *s; | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7851 linenr_T save_first = rex.reg_firstlnum; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7852 linenr_T save_max = rex.reg_maxline; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7853 |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7854 rex.reg_firstlnum = rsm.sm_firstlnum; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7855 rex.reg_maxline = rsm.sm_maxline; |
| 2011 | 7856 |
| 7857 s = reg_getline(lnum); | |
| 7858 | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7859 rex.reg_firstlnum = save_first; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7860 rex.reg_maxline = save_max; |
| 2011 | 7861 return s; |
| 7862 } | |
| 7863 | |
| 7864 /* | |
| 1209 | 7865 * Used for the submatch() function: get the string from the n'th submatch in |
| 7 | 7866 * allocated memory. |
| 7867 * Returns NULL when not in a ":s" command and for a non-existing submatch. | |
| 7868 */ | |
| 7869 char_u * | |
|
7833
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
7870 reg_submatch(int no) |
| 7 | 7871 { |
| 7872 char_u *retval = NULL; | |
| 7873 char_u *s; | |
| 7874 int len; | |
| 7875 int round; | |
| 7876 linenr_T lnum; | |
| 7877 | |
| 840 | 7878 if (!can_f_submatch || no < 0) |
| 7 | 7879 return NULL; |
| 7880 | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7881 if (rsm.sm_match == NULL) |
| 7 | 7882 { |
| 7883 /* | |
| 7884 * First round: compute the length and allocate memory. | |
| 7885 * Second round: copy the text. | |
| 7886 */ | |
| 7887 for (round = 1; round <= 2; ++round) | |
| 7888 { | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7889 lnum = rsm.sm_mmatch->startpos[no].lnum; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7890 if (lnum < 0 || rsm.sm_mmatch->endpos[no].lnum < 0) |
| 7 | 7891 return NULL; |
| 7892 | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7893 s = reg_getline_submatch(lnum) + rsm.sm_mmatch->startpos[no].col; |
| 7 | 7894 if (s == NULL) /* anti-crash check, cannot happen? */ |
| 7895 break; | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7896 if (rsm.sm_mmatch->endpos[no].lnum == lnum) |
| 7 | 7897 { |
| 7898 /* Within one line: take form start to end col. */ | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7899 len = rsm.sm_mmatch->endpos[no].col |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7900 - rsm.sm_mmatch->startpos[no].col; |
| 7 | 7901 if (round == 2) |
| 418 | 7902 vim_strncpy(retval, s, len); |
| 7 | 7903 ++len; |
| 7904 } | |
| 7905 else | |
| 7906 { | |
| 7907 /* Multiple lines: take start line from start col, middle | |
| 7908 * lines completely and end line up to end col. */ | |
| 7909 len = (int)STRLEN(s); | |
| 7910 if (round == 2) | |
| 7911 { | |
| 7912 STRCPY(retval, s); | |
| 7913 retval[len] = '\n'; | |
| 7914 } | |
| 7915 ++len; | |
| 7916 ++lnum; | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7917 while (lnum < rsm.sm_mmatch->endpos[no].lnum) |
| 7 | 7918 { |
| 2011 | 7919 s = reg_getline_submatch(lnum++); |
| 7 | 7920 if (round == 2) |
| 7921 STRCPY(retval + len, s); | |
| 7922 len += (int)STRLEN(s); | |
| 7923 if (round == 2) | |
| 7924 retval[len] = '\n'; | |
| 7925 ++len; | |
| 7926 } | |
| 7927 if (round == 2) | |
| 2011 | 7928 STRNCPY(retval + len, reg_getline_submatch(lnum), |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7929 rsm.sm_mmatch->endpos[no].col); |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7930 len += rsm.sm_mmatch->endpos[no].col; |
| 7 | 7931 if (round == 2) |
| 7932 retval[len] = NUL; | |
| 7933 ++len; | |
| 7934 } | |
| 7935 | |
| 840 | 7936 if (retval == NULL) |
| 7 | 7937 { |
| 7938 retval = lalloc((long_u)len, TRUE); | |
| 840 | 7939 if (retval == NULL) |
| 7 | 7940 return NULL; |
| 7941 } | |
| 7942 } | |
| 7943 } | |
| 7944 else | |
| 7945 { | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7946 s = rsm.sm_match->startp[no]; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7947 if (s == NULL || rsm.sm_match->endp[no] == NULL) |
| 7 | 7948 retval = NULL; |
| 7949 else | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7950 retval = vim_strnsave(s, (int)(rsm.sm_match->endp[no] - s)); |
| 7 | 7951 } |
| 7952 | |
| 7953 return retval; | |
| 7954 } | |
| 5794 | 7955 |
| 7956 /* | |
| 7957 * Used for the submatch() function with the optional non-zero argument: get | |
| 7958 * the list of strings from the n'th submatch in allocated memory with NULs | |
| 7959 * represented in NLs. | |
| 7960 * Returns a list of allocated strings. Returns NULL when not in a ":s" | |
| 7961 * command, for a non-existing submatch and for any error. | |
| 7962 */ | |
| 7963 list_T * | |
|
7833
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
7964 reg_submatch_list(int no) |
| 5794 | 7965 { |
| 7966 char_u *s; | |
| 7967 linenr_T slnum; | |
| 7968 linenr_T elnum; | |
| 7969 colnr_T scol; | |
| 7970 colnr_T ecol; | |
| 7971 int i; | |
| 7972 list_T *list; | |
| 7973 int error = FALSE; | |
| 7974 | |
| 7975 if (!can_f_submatch || no < 0) | |
| 7976 return NULL; | |
| 7977 | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7978 if (rsm.sm_match == NULL) |
| 5794 | 7979 { |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7980 slnum = rsm.sm_mmatch->startpos[no].lnum; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7981 elnum = rsm.sm_mmatch->endpos[no].lnum; |
| 5794 | 7982 if (slnum < 0 || elnum < 0) |
| 7983 return NULL; | |
| 7984 | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7985 scol = rsm.sm_mmatch->startpos[no].col; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7986 ecol = rsm.sm_mmatch->endpos[no].col; |
| 5794 | 7987 |
| 7988 list = list_alloc(); | |
| 7989 if (list == NULL) | |
| 7990 return NULL; | |
| 7991 | |
| 7992 s = reg_getline_submatch(slnum) + scol; | |
| 7993 if (slnum == elnum) | |
| 7994 { | |
| 7995 if (list_append_string(list, s, ecol - scol) == FAIL) | |
| 7996 error = TRUE; | |
| 7997 } | |
| 7998 else | |
| 7999 { | |
| 8000 if (list_append_string(list, s, -1) == FAIL) | |
| 8001 error = TRUE; | |
| 8002 for (i = 1; i < elnum - slnum; i++) | |
| 8003 { | |
| 8004 s = reg_getline_submatch(slnum + i); | |
| 8005 if (list_append_string(list, s, -1) == FAIL) | |
| 8006 error = TRUE; | |
| 8007 } | |
| 8008 s = reg_getline_submatch(elnum); | |
| 8009 if (list_append_string(list, s, ecol) == FAIL) | |
| 8010 error = TRUE; | |
| 8011 } | |
| 8012 } | |
| 8013 else | |
| 8014 { | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
8015 s = rsm.sm_match->startp[no]; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
8016 if (s == NULL || rsm.sm_match->endp[no] == NULL) |
| 5794 | 8017 return NULL; |
| 8018 list = list_alloc(); | |
| 8019 if (list == NULL) | |
| 8020 return NULL; | |
| 8021 if (list_append_string(list, s, | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
8022 (int)(rsm.sm_match->endp[no] - s)) == FAIL) |
| 5794 | 8023 error = TRUE; |
| 8024 } | |
| 8025 | |
| 8026 if (error) | |
| 8027 { | |
|
8863
e1b84109506a
commit https://github.com/vim/vim/commit/107e1eef1df3b786ad3ad49fbdb9e058649303b5
Christian Brabandt <cb@256bit.org>
parents:
8825
diff
changeset
|
8028 list_free(list); |
| 5794 | 8029 return NULL; |
| 8030 } | |
| 8031 return list; | |
| 8032 } | |
| 7 | 8033 #endif |
| 4444 | 8034 |
| 8035 static regengine_T bt_regengine = | |
| 8036 { | |
| 8037 bt_regcomp, | |
|
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8038 bt_regfree, |
| 4444 | 8039 bt_regexec_nl, |
| 6328 | 8040 bt_regexec_multi, |
| 8041 (char_u *)"" | |
| 4444 | 8042 }; |
| 8043 | |
| 8044 #include "regexp_nfa.c" | |
| 8045 | |
| 8046 static regengine_T nfa_regengine = | |
| 8047 { | |
| 8048 nfa_regcomp, | |
|
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|
8049 nfa_regfree, |
| 4444 | 8050 nfa_regexec_nl, |
| 6328 | 8051 nfa_regexec_multi, |
| 8052 (char_u *)"" | |
| 4444 | 8053 }; |
| 8054 | |
| 8055 /* Which regexp engine to use? Needed for vim_regcomp(). | |
| 8056 * Must match with 'regexpengine'. */ | |
| 8057 static int regexp_engine = 0; | |
| 6328 | 8058 |
| 4444 | 8059 #ifdef DEBUG |
| 8060 static char_u regname[][30] = { | |
| 8061 "AUTOMATIC Regexp Engine", | |
|
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|
8062 "BACKTRACKING Regexp Engine", |
| 4444 | 8063 "NFA Regexp Engine" |
| 8064 }; | |
| 8065 #endif | |
| 8066 | |
| 8067 /* | |
| 8068 * Compile a regular expression into internal code. | |
|
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|
8069 * Returns the program in allocated memory. |
|
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|
8070 * Use vim_regfree() to free the memory. |
|
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|
8071 * Returns NULL for an error. |
| 4444 | 8072 */ |
| 8073 regprog_T * | |
|
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|
8074 vim_regcomp(char_u *expr_arg, int re_flags) |
| 4444 | 8075 { |
| 8076 regprog_T *prog = NULL; | |
| 8077 char_u *expr = expr_arg; | |
| 8078 | |
| 8079 regexp_engine = p_re; | |
| 8080 | |
| 8081 /* Check for prefix "\%#=", that sets the regexp engine */ | |
| 8082 if (STRNCMP(expr, "\\%#=", 4) == 0) | |
| 8083 { | |
| 8084 int newengine = expr[4] - '0'; | |
| 8085 | |
| 8086 if (newengine == AUTOMATIC_ENGINE | |
| 8087 || newengine == BACKTRACKING_ENGINE | |
| 8088 || newengine == NFA_ENGINE) | |
| 8089 { | |
| 8090 regexp_engine = expr[4] - '0'; | |
| 8091 expr += 5; | |
| 8092 #ifdef DEBUG | |
| 5897 | 8093 smsg((char_u *)"New regexp mode selected (%d): %s", |
| 8094 regexp_engine, regname[newengine]); | |
| 4444 | 8095 #endif |
| 8096 } | |
| 8097 else | |
| 8098 { | |
| 8099 EMSG(_("E864: \\%#= can only be followed by 0, 1, or 2. The automatic engine will be used ")); | |
| 8100 regexp_engine = AUTOMATIC_ENGINE; | |
| 8101 } | |
| 8102 } | |
| 8103 bt_regengine.expr = expr; | |
| 8104 nfa_regengine.expr = expr; | |
| 8105 | |
| 8106 /* | |
| 8107 * First try the NFA engine, unless backtracking was requested. | |
| 8108 */ | |
| 8109 if (regexp_engine != BACKTRACKING_ENGINE) | |
| 6533 | 8110 prog = nfa_regengine.regcomp(expr, |
| 8111 re_flags + (regexp_engine == AUTOMATIC_ENGINE ? RE_AUTO : 0)); | |
| 4444 | 8112 else |
| 8113 prog = bt_regengine.regcomp(expr, re_flags); | |
| 8114 | |
| 6328 | 8115 /* Check for error compiling regexp with initial engine. */ |
| 8116 if (prog == NULL) | |
| 4444 | 8117 { |
| 4460 | 8118 #ifdef BT_REGEXP_DEBUG_LOG |
| 4444 | 8119 if (regexp_engine != BACKTRACKING_ENGINE) /* debugging log for NFA */ |
| 8120 { | |
| 8121 FILE *f; | |
| 4460 | 8122 f = fopen(BT_REGEXP_DEBUG_LOG_NAME, "a"); |
| 4444 | 8123 if (f) |
| 8124 { | |
|
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|
8125 fprintf(f, "Syntax error in \"%s\"\n", expr); |
| 4444 | 8126 fclose(f); |
| 8127 } | |
| 8128 else | |
| 4460 | 8129 EMSG2("(NFA) Could not open \"%s\" to write !!!", |
| 8130 BT_REGEXP_DEBUG_LOG_NAME); | |
| 4444 | 8131 } |
| 8132 #endif | |
| 8133 /* | |
| 6328 | 8134 * If the NFA engine failed, try the backtracking engine. |
| 6533 | 8135 * The NFA engine also fails for patterns that it can't handle well |
| 8136 * but are still valid patterns, thus a retry should work. | |
| 8137 */ | |
| 4444 | 8138 if (regexp_engine == AUTOMATIC_ENGINE) |
| 6328 | 8139 { |
| 6533 | 8140 regexp_engine = BACKTRACKING_ENGINE; |
|
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8141 prog = bt_regengine.regcomp(expr, re_flags); |
| 6328 | 8142 } |
|
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8143 } |
| 4444 | 8144 |
| 6328 | 8145 if (prog != NULL) |
| 8146 { | |
| 8147 /* Store the info needed to call regcomp() again when the engine turns | |
| 8148 * out to be very slow when executing it. */ | |
| 8149 prog->re_engine = regexp_engine; | |
| 8150 prog->re_flags = re_flags; | |
| 8151 } | |
| 8152 | |
| 4444 | 8153 return prog; |
| 8154 } | |
| 8155 | |
| 8156 /* | |
|
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|
8157 * Free a compiled regexp program, returned by vim_regcomp(). |
|
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8158 */ |
|
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|
8159 void |
|
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|
8160 vim_regfree(regprog_T *prog) |
|
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8161 { |
|
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8162 if (prog != NULL) |
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8163 prog->engine->regfree(prog); |
|
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8164 } |
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8165 |
| 6328 | 8166 #ifdef FEAT_EVAL |
|
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|
8167 static void report_re_switch(char_u *pat); |
| 6328 | 8168 |
| 8169 static void | |
|
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|
8170 report_re_switch(char_u *pat) |
| 6328 | 8171 { |
| 8172 if (p_verbose > 0) | |
| 8173 { | |
| 8174 verbose_enter(); | |
| 8175 MSG_PUTS(_("Switching to backtracking RE engine for pattern: ")); | |
| 8176 MSG_PUTS(pat); | |
| 8177 verbose_leave(); | |
| 8178 } | |
| 8179 } | |
| 8180 #endif | |
| 8181 | |
|
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|
8182 static int vim_regexec_both(regmatch_T *rmp, char_u *line, colnr_T col, int nl); |
| 6328 | 8183 |
|
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|
8184 /* |
| 4444 | 8185 * Match a regexp against a string. |
| 8186 * "rmp->regprog" is a compiled regexp as returned by vim_regcomp(). | |
| 6375 | 8187 * Note: "rmp->regprog" may be freed and changed. |
| 4444 | 8188 * Uses curbuf for line count and 'iskeyword'. |
| 6328 | 8189 * When "nl" is TRUE consider a "\n" in "line" to be a line break. |
| 4444 | 8190 * |
| 8191 * Return TRUE if there is a match, FALSE if not. | |
| 8192 */ | |
| 6328 | 8193 static int |
|
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|
8194 vim_regexec_both( |
|
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8195 regmatch_T *rmp, |
|
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|
8196 char_u *line, /* string to match against */ |
|
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|
8197 colnr_T col, /* column to start looking for match */ |
|
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|
8198 int nl) |
| 6328 | 8199 { |
|
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|
8200 int result; |
|
d76ccdacb41e
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|
8201 regexec_T rex_save; |
|
d76ccdacb41e
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|
8202 int rex_in_use_save = rex_in_use; |
|
d76ccdacb41e
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|
8203 |
|
d76ccdacb41e
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|
8204 if (rex_in_use) |
|
d76ccdacb41e
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|
8205 /* Being called recursively, save the state. */ |
|
d76ccdacb41e
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|
8206 rex_save = rex; |
|
d76ccdacb41e
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|
8207 rex_in_use = TRUE; |
|
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|
8208 rex.reg_startp = NULL; |
|
d76ccdacb41e
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|
8209 rex.reg_endp = NULL; |
|
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|
8210 rex.reg_startpos = NULL; |
|
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|
8211 rex.reg_endpos = NULL; |
|
d76ccdacb41e
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|
8212 |
|
d76ccdacb41e
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diff
changeset
|
8213 result = rmp->regprog->engine->regexec_nl(rmp, line, col, nl); |
| 6328 | 8214 |
| 8215 /* NFA engine aborted because it's very slow. */ | |
| 8216 if (rmp->regprog->re_engine == AUTOMATIC_ENGINE | |
| 8217 && result == NFA_TOO_EXPENSIVE) | |
| 8218 { | |
| 8219 int save_p_re = p_re; | |
| 8220 int re_flags = rmp->regprog->re_flags; | |
| 8221 char_u *pat = vim_strsave(((nfa_regprog_T *)rmp->regprog)->pattern); | |
| 8222 | |
| 8223 p_re = BACKTRACKING_ENGINE; | |
| 8224 vim_regfree(rmp->regprog); | |
| 8225 if (pat != NULL) | |
| 8226 { | |
| 8227 #ifdef FEAT_EVAL | |
| 8228 report_re_switch(pat); | |
| 8229 #endif | |
| 8230 rmp->regprog = vim_regcomp(pat, re_flags); | |
| 8231 if (rmp->regprog != NULL) | |
| 8232 result = rmp->regprog->engine->regexec_nl(rmp, line, col, nl); | |
| 8233 vim_free(pat); | |
| 8234 } | |
| 8235 | |
| 8236 p_re = save_p_re; | |
| 8237 } | |
|
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|
8238 |
|
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|
8239 rex_in_use = rex_in_use_save; |
|
d76ccdacb41e
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|
8240 if (rex_in_use) |
|
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|
8241 rex = rex_save; |
|
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|
8242 |
| 6390 | 8243 return result > 0; |
| 6328 | 8244 } |
| 8245 | |
| 6375 | 8246 /* |
| 8247 * Note: "*prog" may be freed and changed. | |
| 6390 | 8248 * Return TRUE if there is a match, FALSE if not. |
| 6375 | 8249 */ |
| 8250 int | |
|
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|
8251 vim_regexec_prog( |
|
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|
8252 regprog_T **prog, |
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|
8253 int ignore_case, |
|
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|
8254 char_u *line, |
|
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changeset
|
8255 colnr_T col) |
| 6375 | 8256 { |
| 8257 int r; | |
| 8258 regmatch_T regmatch; | |
| 8259 | |
| 8260 regmatch.regprog = *prog; | |
| 8261 regmatch.rm_ic = ignore_case; | |
| 8262 r = vim_regexec_both(®match, line, col, FALSE); | |
| 8263 *prog = regmatch.regprog; | |
| 8264 return r; | |
| 8265 } | |
| 8266 | |
| 8267 /* | |
| 8268 * Note: "rmp->regprog" may be freed and changed. | |
| 6390 | 8269 * Return TRUE if there is a match, FALSE if not. |
| 6375 | 8270 */ |
| 4444 | 8271 int |
|
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changeset
|
8272 vim_regexec(regmatch_T *rmp, char_u *line, colnr_T col) |
| 4444 | 8273 { |
| 6328 | 8274 return vim_regexec_both(rmp, line, col, FALSE); |
| 4444 | 8275 } |
| 8276 | |
| 8277 #if defined(FEAT_MODIFY_FNAME) || defined(FEAT_EVAL) \ | |
| 8278 || defined(FIND_REPLACE_DIALOG) || defined(PROTO) | |
| 8279 /* | |
| 8280 * Like vim_regexec(), but consider a "\n" in "line" to be a line break. | |
| 6375 | 8281 * Note: "rmp->regprog" may be freed and changed. |
| 6390 | 8282 * Return TRUE if there is a match, FALSE if not. |
| 4444 | 8283 */ |
| 8284 int | |
|
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changeset
|
8285 vim_regexec_nl(regmatch_T *rmp, char_u *line, colnr_T col) |
| 4444 | 8286 { |
| 6328 | 8287 return vim_regexec_both(rmp, line, col, TRUE); |
| 4444 | 8288 } |
| 8289 #endif | |
| 8290 | |
| 8291 /* | |
| 8292 * Match a regexp against multiple lines. | |
| 8293 * "rmp->regprog" is a compiled regexp as returned by vim_regcomp(). | |
| 6375 | 8294 * Note: "rmp->regprog" may be freed and changed. |
| 4444 | 8295 * Uses curbuf for line count and 'iskeyword'. |
| 8296 * | |
| 8297 * Return zero if there is no match. Return number of lines contained in the | |
| 8298 * match otherwise. | |
| 8299 */ | |
| 8300 long | |
|
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|
8301 vim_regexec_multi( |
|
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|
8302 regmmatch_T *rmp, |
|
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8303 win_T *win, /* window in which to search or NULL */ |
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c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
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8304 buf_T *buf, /* buffer in which to search */ |
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c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
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8305 linenr_T lnum, /* nr of line to start looking for match */ |
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c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
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7807
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8306 colnr_T col, /* column to start looking for match */ |
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commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
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8307 proftime_T *tm) /* timeout limit or NULL */ |
| 4444 | 8308 { |
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8309 int result; |
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commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
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8310 regexec_T rex_save; |
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commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
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parents:
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8311 int rex_in_use_save = rex_in_use; |
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commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
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parents:
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diff
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8312 |
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commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
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parents:
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8313 if (rex_in_use) |
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commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
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8314 /* Being called recursively, save the state. */ |
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d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
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parents:
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diff
changeset
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8315 rex_save = rex; |
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commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
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parents:
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8316 rex_in_use = TRUE; |
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d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
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parents:
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diff
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8317 |
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commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
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parents:
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diff
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8318 result = rmp->regprog->engine->regexec_multi(rmp, win, buf, lnum, col, tm); |
| 6328 | 8319 |
| 8320 /* NFA engine aborted because it's very slow. */ | |
| 8321 if (rmp->regprog->re_engine == AUTOMATIC_ENGINE | |
| 8322 && result == NFA_TOO_EXPENSIVE) | |
| 8323 { | |
| 8324 int save_p_re = p_re; | |
| 8325 int re_flags = rmp->regprog->re_flags; | |
| 8326 char_u *pat = vim_strsave(((nfa_regprog_T *)rmp->regprog)->pattern); | |
| 8327 | |
| 8328 p_re = BACKTRACKING_ENGINE; | |
| 8329 vim_regfree(rmp->regprog); | |
| 8330 if (pat != NULL) | |
| 8331 { | |
| 8332 #ifdef FEAT_EVAL | |
| 8333 report_re_switch(pat); | |
| 8334 #endif | |
| 8335 rmp->regprog = vim_regcomp(pat, re_flags); | |
| 8336 if (rmp->regprog != NULL) | |
| 8337 result = rmp->regprog->engine->regexec_multi( | |
| 8338 rmp, win, buf, lnum, col, tm); | |
| 8339 vim_free(pat); | |
| 8340 } | |
| 8341 p_re = save_p_re; | |
| 8342 } | |
| 8343 | |
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8344 rex_in_use = rex_in_use_save; |
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d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
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8345 if (rex_in_use) |
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d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
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8346 rex = rex_save; |
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commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
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parents:
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8347 |
| 6390 | 8348 return result <= 0 ? 0 : result; |
| 4444 | 8349 } |