Mercurial > vim
annotate src/regexp.c @ 15488:da8b98c008bf v8.1.0752
patch 8.1.0752: one more compiler warning for signed/unsigned string
commit https://github.com/vim/vim/commit/8e481e8dfe0b82930faf005c7e840c49cbcf4511
Author: Bram Moolenaar <Bram@vim.org>
Date: Tue Jan 15 20:07:48 2019 +0100
patch 8.1.0752: one more compiler warning for signed/unsigned string
Problem: One more compiler warning for signed/unsigned string. (Tony
Mechelynck)
Solution: Remove type cast.
| author | Bram Moolenaar <Bram@vim.org> |
|---|---|
| date | Tue, 15 Jan 2019 20:15:06 +0100 |
| parents | bd12ace1bab2 |
| children | dd725a8ab112 |
| 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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changeset
|
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 */ | |
|
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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) |
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339 #define EMSG_RET_FAIL(m) return (emsg((m)), rc_did_emsg = TRUE, FAIL) |
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340 #define EMSG2_RET_NULL(m, c) return (semsg((const char *)(m), (c) ? "" : "\\"), rc_did_emsg = TRUE, (void *)NULL) |
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341 #define EMSG3_RET_NULL(m, c, a) return (semsg((const char *)(m), (c) ? "" : "\\", (a)), rc_did_emsg = TRUE, (void *)NULL) |
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342 #define EMSG2_RET_FAIL(m, c) return (semsg((const char *)(m), (c) ? "" : "\\"), rc_did_emsg = TRUE, FAIL) |
| 4444 | 343 #define EMSG_ONE_RET_NULL EMSG2_RET_NULL(_("E369: invalid item in %s%%[]"), reg_magic == MAGIC_ALL) |
| 7 | 344 |
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345 |
| 7 | 346 #define MAX_LIMIT (32767L << 16L) |
| 347 | |
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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["); |
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361 static char_u e_reverse_range[] = N_("E944: Reverse range in character class"); |
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362 #ifdef FEAT_MBYTE |
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363 static char_u e_large_class[] = N_("E945: Range too large in character class"); |
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364 #endif |
| 4444 | 365 static char_u e_unmatchedpp[] = N_("E53: Unmatched %s%%("); |
| 366 static char_u e_unmatchedp[] = N_("E54: Unmatched %s("); | |
| 367 static char_u e_unmatchedpar[] = N_("E55: Unmatched %s)"); | |
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368 #ifdef FEAT_SYN_HL |
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369 static char_u e_z_not_allowed[] = N_("E66: \\z( not allowed here"); |
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370 static char_u e_z1_not_allowed[] = N_("E67: \\z1 - \\z9 not allowed here"); |
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371 #endif |
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372 static char_u e_missing_sb[] = N_("E69: Missing ] after %s%%["); |
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373 static char_u e_empty_sb[] = N_("E70: Empty %s%%[]"); |
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374 static char_u e_recursive[] = N_("E956: Cannot use pattern recursively"); |
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375 |
| 7 | 376 #define NOT_MULTI 0 |
| 377 #define MULTI_ONE 1 | |
| 378 #define MULTI_MULT 2 | |
| 379 /* | |
| 380 * Return NOT_MULTI if c is not a "multi" operator. | |
| 381 * Return MULTI_ONE if c is a single "multi" operator. | |
| 382 * Return MULTI_MULT if c is a multi "multi" operator. | |
| 383 */ | |
| 384 static int | |
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385 re_multi_type(int c) |
| 7 | 386 { |
| 387 if (c == Magic('@') || c == Magic('=') || c == Magic('?')) | |
| 388 return MULTI_ONE; | |
| 389 if (c == Magic('*') || c == Magic('+') || c == Magic('{')) | |
| 390 return MULTI_MULT; | |
| 391 return NOT_MULTI; | |
| 392 } | |
| 393 | |
| 394 /* | |
| 395 * Flags to be passed up and down. | |
| 396 */ | |
| 397 #define HASWIDTH 0x1 /* Known never to match null string. */ | |
| 398 #define SIMPLE 0x2 /* Simple enough to be STAR/PLUS operand. */ | |
| 399 #define SPSTART 0x4 /* Starts with * or +. */ | |
| 400 #define HASNL 0x8 /* Contains some \n. */ | |
| 401 #define HASLOOKBH 0x10 /* Contains "\@<=" or "\@<!". */ | |
| 402 #define WORST 0 /* Worst case. */ | |
| 403 | |
| 404 /* | |
| 405 * When regcode is set to this value, code is not emitted and size is computed | |
| 406 * instead. | |
| 407 */ | |
| 408 #define JUST_CALC_SIZE ((char_u *) -1) | |
| 409 | |
| 359 | 410 static char_u *reg_prev_sub = NULL; |
| 411 | |
| 7 | 412 /* |
| 413 * REGEXP_INRANGE contains all characters which are always special in a [] | |
| 414 * range after '\'. | |
| 415 * REGEXP_ABBR contains all characters which act as abbreviations after '\'. | |
| 416 * These are: | |
| 417 * \n - New line (NL). | |
| 418 * \r - Carriage Return (CR). | |
| 419 * \t - Tab (TAB). | |
| 420 * \e - Escape (ESC). | |
| 421 * \b - Backspace (Ctrl_H). | |
| 24 | 422 * \d - Character code in decimal, eg \d123 |
| 423 * \o - Character code in octal, eg \o80 | |
| 424 * \x - Character code in hex, eg \x4a | |
| 425 * \u - Multibyte character code, eg \u20ac | |
| 426 * \U - Long multibyte character code, eg \U12345678 | |
| 7 | 427 */ |
| 428 static char_u REGEXP_INRANGE[] = "]^-n\\"; | |
| 24 | 429 static char_u REGEXP_ABBR[] = "nrtebdoxuU"; |
| 7 | 430 |
| 431 /* | |
| 432 * Translate '\x' to its control character, except "\n", which is Magic. | |
| 433 */ | |
| 434 static int | |
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435 backslash_trans(int c) |
| 7 | 436 { |
| 437 switch (c) | |
| 438 { | |
| 439 case 'r': return CAR; | |
| 440 case 't': return TAB; | |
| 441 case 'e': return ESC; | |
| 442 case 'b': return BS; | |
| 443 } | |
| 444 return c; | |
| 445 } | |
| 446 | |
| 447 /* | |
| 167 | 448 * Check for a character class name "[:name:]". "pp" points to the '['. |
| 7 | 449 * Returns one of the CLASS_ items. CLASS_NONE means that no item was |
| 450 * recognized. Otherwise "pp" is advanced to after the item. | |
| 451 */ | |
| 452 static int | |
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453 get_char_class(char_u **pp) |
| 7 | 454 { |
| 455 static const char *(class_names[]) = | |
| 456 { | |
| 457 "alnum:]", | |
| 458 #define CLASS_ALNUM 0 | |
| 459 "alpha:]", | |
| 460 #define CLASS_ALPHA 1 | |
| 461 "blank:]", | |
| 462 #define CLASS_BLANK 2 | |
| 463 "cntrl:]", | |
| 464 #define CLASS_CNTRL 3 | |
| 465 "digit:]", | |
| 466 #define CLASS_DIGIT 4 | |
| 467 "graph:]", | |
| 468 #define CLASS_GRAPH 5 | |
| 469 "lower:]", | |
| 470 #define CLASS_LOWER 6 | |
| 471 "print:]", | |
| 472 #define CLASS_PRINT 7 | |
| 473 "punct:]", | |
| 474 #define CLASS_PUNCT 8 | |
| 475 "space:]", | |
| 476 #define CLASS_SPACE 9 | |
| 477 "upper:]", | |
| 478 #define CLASS_UPPER 10 | |
| 479 "xdigit:]", | |
| 480 #define CLASS_XDIGIT 11 | |
| 481 "tab:]", | |
| 482 #define CLASS_TAB 12 | |
| 483 "return:]", | |
| 484 #define CLASS_RETURN 13 | |
| 485 "backspace:]", | |
| 486 #define CLASS_BACKSPACE 14 | |
| 487 "escape:]", | |
| 488 #define CLASS_ESCAPE 15 | |
| 489 }; | |
| 490 #define CLASS_NONE 99 | |
| 491 int i; | |
| 492 | |
| 493 if ((*pp)[1] == ':') | |
| 494 { | |
| 1877 | 495 for (i = 0; i < (int)(sizeof(class_names) / sizeof(*class_names)); ++i) |
| 7 | 496 if (STRNCMP(*pp + 2, class_names[i], STRLEN(class_names[i])) == 0) |
| 497 { | |
| 498 *pp += STRLEN(class_names[i]) + 2; | |
| 499 return i; | |
| 500 } | |
| 501 } | |
| 502 return CLASS_NONE; | |
| 503 } | |
| 504 | |
| 505 /* | |
| 506 * Specific version of character class functions. | |
| 507 * Using a table to keep this fast. | |
| 508 */ | |
| 509 static short class_tab[256]; | |
| 510 | |
| 511 #define RI_DIGIT 0x01 | |
| 512 #define RI_HEX 0x02 | |
| 513 #define RI_OCTAL 0x04 | |
| 514 #define RI_WORD 0x08 | |
| 515 #define RI_HEAD 0x10 | |
| 516 #define RI_ALPHA 0x20 | |
| 517 #define RI_LOWER 0x40 | |
| 518 #define RI_UPPER 0x80 | |
| 519 #define RI_WHITE 0x100 | |
| 520 | |
| 521 static void | |
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522 init_class_tab(void) |
| 7 | 523 { |
| 524 int i; | |
| 525 static int done = FALSE; | |
| 526 | |
| 527 if (done) | |
| 528 return; | |
| 529 | |
| 530 for (i = 0; i < 256; ++i) | |
| 531 { | |
| 532 if (i >= '0' && i <= '7') | |
| 533 class_tab[i] = RI_DIGIT + RI_HEX + RI_OCTAL + RI_WORD; | |
| 534 else if (i >= '8' && i <= '9') | |
| 535 class_tab[i] = RI_DIGIT + RI_HEX + RI_WORD; | |
| 536 else if (i >= 'a' && i <= 'f') | |
| 537 class_tab[i] = RI_HEX + RI_WORD + RI_HEAD + RI_ALPHA + RI_LOWER; | |
| 538 #ifdef EBCDIC | |
| 539 else if ((i >= 'g' && i <= 'i') || (i >= 'j' && i <= 'r') | |
| 540 || (i >= 's' && i <= 'z')) | |
| 541 #else | |
| 542 else if (i >= 'g' && i <= 'z') | |
| 543 #endif | |
| 544 class_tab[i] = RI_WORD + RI_HEAD + RI_ALPHA + RI_LOWER; | |
| 545 else if (i >= 'A' && i <= 'F') | |
| 546 class_tab[i] = RI_HEX + RI_WORD + RI_HEAD + RI_ALPHA + RI_UPPER; | |
| 547 #ifdef EBCDIC | |
| 548 else if ((i >= 'G' && i <= 'I') || ( i >= 'J' && i <= 'R') | |
| 549 || (i >= 'S' && i <= 'Z')) | |
| 550 #else | |
| 551 else if (i >= 'G' && i <= 'Z') | |
| 552 #endif | |
| 553 class_tab[i] = RI_WORD + RI_HEAD + RI_ALPHA + RI_UPPER; | |
| 554 else if (i == '_') | |
| 555 class_tab[i] = RI_WORD + RI_HEAD; | |
| 556 else | |
| 557 class_tab[i] = 0; | |
| 558 } | |
| 559 class_tab[' '] |= RI_WHITE; | |
| 560 class_tab['\t'] |= RI_WHITE; | |
| 561 done = TRUE; | |
| 562 } | |
| 563 | |
| 564 #ifdef FEAT_MBYTE | |
| 565 # define ri_digit(c) (c < 0x100 && (class_tab[c] & RI_DIGIT)) | |
| 566 # define ri_hex(c) (c < 0x100 && (class_tab[c] & RI_HEX)) | |
| 567 # define ri_octal(c) (c < 0x100 && (class_tab[c] & RI_OCTAL)) | |
| 568 # define ri_word(c) (c < 0x100 && (class_tab[c] & RI_WORD)) | |
| 569 # define ri_head(c) (c < 0x100 && (class_tab[c] & RI_HEAD)) | |
| 570 # define ri_alpha(c) (c < 0x100 && (class_tab[c] & RI_ALPHA)) | |
| 571 # define ri_lower(c) (c < 0x100 && (class_tab[c] & RI_LOWER)) | |
| 572 # define ri_upper(c) (c < 0x100 && (class_tab[c] & RI_UPPER)) | |
| 573 # define ri_white(c) (c < 0x100 && (class_tab[c] & RI_WHITE)) | |
| 574 #else | |
| 575 # define ri_digit(c) (class_tab[c] & RI_DIGIT) | |
| 576 # define ri_hex(c) (class_tab[c] & RI_HEX) | |
| 577 # define ri_octal(c) (class_tab[c] & RI_OCTAL) | |
| 578 # define ri_word(c) (class_tab[c] & RI_WORD) | |
| 579 # define ri_head(c) (class_tab[c] & RI_HEAD) | |
| 580 # define ri_alpha(c) (class_tab[c] & RI_ALPHA) | |
| 581 # define ri_lower(c) (class_tab[c] & RI_LOWER) | |
| 582 # define ri_upper(c) (class_tab[c] & RI_UPPER) | |
| 583 # define ri_white(c) (class_tab[c] & RI_WHITE) | |
| 584 #endif | |
| 585 | |
| 586 /* flags for regflags */ | |
| 587 #define RF_ICASE 1 /* ignore case */ | |
| 588 #define RF_NOICASE 2 /* don't ignore case */ | |
| 589 #define RF_HASNL 4 /* can match a NL */ | |
| 590 #define RF_ICOMBINE 8 /* ignore combining characters */ | |
| 591 #define RF_LOOKBH 16 /* uses "\@<=" or "\@<!" */ | |
| 592 | |
| 593 /* | |
| 594 * Global work variables for vim_regcomp(). | |
| 595 */ | |
| 596 | |
| 597 static char_u *regparse; /* Input-scan pointer. */ | |
| 598 static int prevchr_len; /* byte length of previous char */ | |
| 599 static int num_complex_braces; /* Complex \{...} count */ | |
| 600 static int regnpar; /* () count. */ | |
| 601 #ifdef FEAT_SYN_HL | |
| 602 static int regnzpar; /* \z() count. */ | |
| 603 static int re_has_z; /* \z item detected */ | |
| 604 #endif | |
| 605 static char_u *regcode; /* Code-emit pointer, or JUST_CALC_SIZE */ | |
| 606 static long regsize; /* Code size. */ | |
| 2010 | 607 static int reg_toolong; /* TRUE when offset out of range */ |
| 7 | 608 static char_u had_endbrace[NSUBEXP]; /* flags, TRUE if end of () found */ |
| 609 static unsigned regflags; /* RF_ flags for prog */ | |
| 610 static long brace_min[10]; /* Minimums for complex brace repeats */ | |
| 611 static long brace_max[10]; /* Maximums for complex brace repeats */ | |
| 612 static int brace_count[10]; /* Current counts for complex brace repeats */ | |
| 613 #if defined(FEAT_SYN_HL) || defined(PROTO) | |
| 614 static int had_eol; /* TRUE when EOL found by vim_regcomp() */ | |
| 615 #endif | |
| 616 static int one_exactly = FALSE; /* only do one char for EXACTLY */ | |
| 617 | |
| 618 static int reg_magic; /* magicness of the pattern: */ | |
| 619 #define MAGIC_NONE 1 /* "\V" very unmagic */ | |
| 620 #define MAGIC_OFF 2 /* "\M" or 'magic' off */ | |
| 621 #define MAGIC_ON 3 /* "\m" or 'magic' */ | |
| 622 #define MAGIC_ALL 4 /* "\v" very magic */ | |
| 623 | |
| 624 static int reg_string; /* matching with a string instead of a buffer | |
| 625 line */ | |
| 481 | 626 static int reg_strict; /* "[abc" is illegal */ |
| 7 | 627 |
| 628 /* | |
| 629 * META contains all characters that may be magic, except '^' and '$'. | |
| 630 */ | |
| 631 | |
| 632 #ifdef EBCDIC | |
| 633 static char_u META[] = "%&()*+.123456789<=>?@ACDFHIKLMOPSUVWX[_acdfhiklmnopsuvwxz{|~"; | |
| 634 #else | |
| 635 /* META[] is used often enough to justify turning it into a table. */ | |
| 636 static char_u META_flags[] = { | |
| 637 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
| 638 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
| 639 /* % & ( ) * + . */ | |
| 640 0, 0, 0, 0, 0, 1, 1, 0, 1, 1, 1, 1, 0, 0, 1, 0, | |
| 641 /* 1 2 3 4 5 6 7 8 9 < = > ? */ | |
| 642 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 1, 1, | |
| 643 /* @ A C D F H I K L M O */ | |
| 644 1, 1, 0, 1, 1, 0, 1, 0, 1, 1, 0, 1, 1, 1, 0, 1, | |
| 645 /* P S U V W X Z [ _ */ | |
| 646 1, 0, 0, 1, 0, 1, 1, 1, 1, 0, 1, 1, 0, 0, 0, 1, | |
| 647 /* a c d f h i k l m n o */ | |
| 648 0, 1, 0, 1, 1, 0, 1, 0, 1, 1, 0, 1, 1, 1, 1, 1, | |
| 649 /* p s u v w x z { | ~ */ | |
| 650 1, 0, 0, 1, 0, 1, 1, 1, 1, 0, 1, 1, 1, 0, 1 | |
| 651 }; | |
| 652 #endif | |
| 653 | |
| 4444 | 654 static int curchr; /* currently parsed character */ |
| 655 /* Previous character. Note: prevchr is sometimes -1 when we are not at the | |
| 656 * start, eg in /[ ^I]^ the pattern was never found even if it existed, | |
| 657 * because ^ was taken to be magic -- webb */ | |
| 658 static int prevchr; | |
| 659 static int prevprevchr; /* previous-previous character */ | |
| 660 static int nextchr; /* used for ungetchr() */ | |
| 7 | 661 |
| 662 /* arguments for reg() */ | |
| 663 #define REG_NOPAREN 0 /* toplevel reg() */ | |
| 664 #define REG_PAREN 1 /* \(\) */ | |
| 665 #define REG_ZPAREN 2 /* \z(\) */ | |
| 666 #define REG_NPAREN 3 /* \%(\) */ | |
| 667 | |
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668 typedef struct |
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669 { |
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670 char_u *regparse; |
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671 int prevchr_len; |
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672 int curchr; |
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673 int prevchr; |
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674 int prevprevchr; |
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675 int nextchr; |
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676 int at_start; |
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677 int prev_at_start; |
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678 int regnpar; |
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679 } parse_state_T; |
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680 |
| 7 | 681 /* |
| 682 * Forward declarations for vim_regcomp()'s friends. | |
| 683 */ | |
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684 static void initchr(char_u *); |
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685 static int getchr(void); |
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686 static void skipchr_keepstart(void); |
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687 static int peekchr(void); |
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688 static void skipchr(void); |
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689 static void ungetchr(void); |
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690 static long gethexchrs(int maxinputlen); |
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691 static long getoctchrs(void); |
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692 static long getdecchrs(void); |
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693 static int coll_get_char(void); |
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694 static void regcomp_start(char_u *expr, int flags); |
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695 static char_u *reg(int, int *); |
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696 static char_u *regbranch(int *flagp); |
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697 static char_u *regconcat(int *flagp); |
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698 static char_u *regpiece(int *); |
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699 static char_u *regatom(int *); |
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700 static char_u *regnode(int); |
| 714 | 701 #ifdef FEAT_MBYTE |
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702 static int use_multibytecode(int c); |
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703 #endif |
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704 static int prog_magic_wrong(void); |
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705 static char_u *regnext(char_u *); |
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706 static void regc(int b); |
| 7 | 707 #ifdef FEAT_MBYTE |
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708 static void regmbc(int c); |
| 2974 | 709 # define REGMBC(x) regmbc(x); |
| 710 # define CASEMBC(x) case x: | |
| 167 | 711 #else |
| 712 # define regmbc(c) regc(c) | |
| 2974 | 713 # define REGMBC(x) |
| 714 # define CASEMBC(x) | |
| 7 | 715 #endif |
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716 static void reginsert(int, char_u *); |
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717 static void reginsert_nr(int op, long val, char_u *opnd); |
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718 static void reginsert_limits(int, long, long, char_u *); |
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719 static char_u *re_put_long(char_u *pr, long_u val); |
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720 static int read_limits(long *, long *); |
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721 static void regtail(char_u *, char_u *); |
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722 static void regoptail(char_u *, char_u *); |
| 7 | 723 |
| 4444 | 724 static regengine_T bt_regengine; |
| 725 static regengine_T nfa_regengine; | |
| 726 | |
| 7 | 727 /* |
| 728 * Return TRUE if compiled regular expression "prog" can match a line break. | |
| 729 */ | |
| 730 int | |
|
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731 re_multiline(regprog_T *prog) |
| 7 | 732 { |
| 733 return (prog->regflags & RF_HASNL); | |
| 734 } | |
| 735 | |
| 736 /* | |
| 737 * Return TRUE if compiled regular expression "prog" looks before the start | |
| 738 * position (pattern contains "\@<=" or "\@<!"). | |
| 739 */ | |
| 740 int | |
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741 re_lookbehind(regprog_T *prog) |
| 7 | 742 { |
| 743 return (prog->regflags & RF_LOOKBH); | |
| 744 } | |
| 745 | |
| 746 /* | |
| 167 | 747 * Check for an equivalence class name "[=a=]". "pp" points to the '['. |
| 748 * Returns a character representing the class. Zero means that no item was | |
| 749 * recognized. Otherwise "pp" is advanced to after the item. | |
| 750 */ | |
| 751 static int | |
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752 get_equi_class(char_u **pp) |
| 167 | 753 { |
| 754 int c; | |
| 755 int l = 1; | |
| 756 char_u *p = *pp; | |
| 757 | |
| 758 if (p[1] == '=') | |
| 759 { | |
| 760 #ifdef FEAT_MBYTE | |
| 761 if (has_mbyte) | |
| 474 | 762 l = (*mb_ptr2len)(p + 2); |
| 167 | 763 #endif |
| 764 if (p[l + 2] == '=' && p[l + 3] == ']') | |
| 765 { | |
| 766 #ifdef FEAT_MBYTE | |
| 767 if (has_mbyte) | |
| 768 c = mb_ptr2char(p + 2); | |
| 769 else | |
| 770 #endif | |
| 771 c = p[2]; | |
| 772 *pp += l + 4; | |
| 773 return c; | |
| 774 } | |
| 775 } | |
| 776 return 0; | |
| 777 } | |
| 778 | |
|
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779 #ifdef EBCDIC |
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780 /* |
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781 * Table for equivalence class "c". (IBM-1047) |
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782 */ |
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783 char *EQUIVAL_CLASS_C[16] = { |
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784 "A\x62\x63\x64\x65\x66\x67", |
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785 "C\x68", |
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786 "E\x71\x72\x73\x74", |
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787 "I\x75\x76\x77\x78", |
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788 "N\x69", |
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789 "O\xEB\xEC\xED\xEE\xEF\x80", |
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790 "U\xFB\xFC\xFD\xFE", |
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791 "Y\xBA", |
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792 "a\x42\x43\x44\x45\x46\x47", |
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793 "c\x48", |
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794 "e\x51\x52\x53\x54", |
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795 "i\x55\x56\x57\x58", |
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796 "n\x49", |
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797 "o\xCB\xCC\xCD\xCE\xCF\x70", |
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798 "u\xDB\xDC\xDD\xDE", |
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799 "y\x8D\xDF", |
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800 }; |
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801 #endif |
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802 |
| 167 | 803 /* |
| 804 * Produce the bytes for equivalence class "c". | |
| 805 * Currently only handles latin1, latin9 and utf-8. | |
| 4444 | 806 * NOTE: When changing this function, also change nfa_emit_equi_class() |
| 167 | 807 */ |
| 808 static void | |
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809 reg_equi_class(int c) |
| 167 | 810 { |
| 811 #ifdef FEAT_MBYTE | |
| 812 if (enc_utf8 || STRCMP(p_enc, "latin1") == 0 | |
| 492 | 813 || STRCMP(p_enc, "iso-8859-15") == 0) |
| 167 | 814 #endif |
| 815 { | |
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816 #ifdef EBCDIC |
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817 int i; |
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818 |
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819 /* This might be slower than switch/case below. */ |
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820 for (i = 0; i < 16; i++) |
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821 { |
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822 if (vim_strchr(EQUIVAL_CLASS_C[i], c) != NULL) |
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823 { |
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824 char *p = EQUIVAL_CLASS_C[i]; |
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825 |
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826 while (*p != 0) |
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827 regmbc(*p++); |
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828 return; |
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829 } |
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830 } |
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831 #else |
| 167 | 832 switch (c) |
| 833 { | |
| 6765 | 834 /* Do not use '\300' style, it results in a negative number. */ |
| 835 case 'A': case 0xc0: case 0xc1: case 0xc2: | |
| 836 case 0xc3: case 0xc4: case 0xc5: | |
| 2974 | 837 CASEMBC(0x100) CASEMBC(0x102) CASEMBC(0x104) CASEMBC(0x1cd) |
| 838 CASEMBC(0x1de) CASEMBC(0x1e0) CASEMBC(0x1ea2) | |
| 6765 | 839 regmbc('A'); regmbc(0xc0); regmbc(0xc1); |
| 840 regmbc(0xc2); regmbc(0xc3); regmbc(0xc4); | |
| 841 regmbc(0xc5); | |
| 2974 | 842 REGMBC(0x100) REGMBC(0x102) REGMBC(0x104) |
| 843 REGMBC(0x1cd) REGMBC(0x1de) REGMBC(0x1e0) | |
| 844 REGMBC(0x1ea2) | |
| 845 return; | |
| 846 case 'B': CASEMBC(0x1e02) CASEMBC(0x1e06) | |
| 847 regmbc('B'); REGMBC(0x1e02) REGMBC(0x1e06) | |
| 167 | 848 return; |
| 6765 | 849 case 'C': case 0xc7: |
| 2974 | 850 CASEMBC(0x106) CASEMBC(0x108) CASEMBC(0x10a) CASEMBC(0x10c) |
| 6765 | 851 regmbc('C'); regmbc(0xc7); |
| 2974 | 852 REGMBC(0x106) REGMBC(0x108) REGMBC(0x10a) |
| 853 REGMBC(0x10c) | |
| 854 return; | |
| 855 case 'D': CASEMBC(0x10e) CASEMBC(0x110) CASEMBC(0x1e0a) | |
| 856 CASEMBC(0x1e0e) CASEMBC(0x1e10) | |
| 857 regmbc('D'); REGMBC(0x10e) REGMBC(0x110) | |
| 858 REGMBC(0x1e0a) REGMBC(0x1e0e) REGMBC(0x1e10) | |
| 167 | 859 return; |
| 6765 | 860 case 'E': case 0xc8: case 0xc9: case 0xca: case 0xcb: |
| 2974 | 861 CASEMBC(0x112) CASEMBC(0x114) CASEMBC(0x116) CASEMBC(0x118) |
| 862 CASEMBC(0x11a) CASEMBC(0x1eba) CASEMBC(0x1ebc) | |
| 6765 | 863 regmbc('E'); regmbc(0xc8); regmbc(0xc9); |
| 864 regmbc(0xca); regmbc(0xcb); | |
| 2974 | 865 REGMBC(0x112) REGMBC(0x114) REGMBC(0x116) |
| 866 REGMBC(0x118) REGMBC(0x11a) REGMBC(0x1eba) | |
| 867 REGMBC(0x1ebc) | |
| 868 return; | |
| 869 case 'F': CASEMBC(0x1e1e) | |
| 870 regmbc('F'); REGMBC(0x1e1e) | |
| 871 return; | |
| 872 case 'G': CASEMBC(0x11c) CASEMBC(0x11e) CASEMBC(0x120) | |
| 873 CASEMBC(0x122) CASEMBC(0x1e4) CASEMBC(0x1e6) CASEMBC(0x1f4) | |
| 874 CASEMBC(0x1e20) | |
| 875 regmbc('G'); REGMBC(0x11c) REGMBC(0x11e) | |
| 876 REGMBC(0x120) REGMBC(0x122) REGMBC(0x1e4) | |
| 877 REGMBC(0x1e6) REGMBC(0x1f4) REGMBC(0x1e20) | |
| 878 return; | |
| 879 case 'H': CASEMBC(0x124) CASEMBC(0x126) CASEMBC(0x1e22) | |
| 880 CASEMBC(0x1e26) CASEMBC(0x1e28) | |
| 881 regmbc('H'); REGMBC(0x124) REGMBC(0x126) | |
| 882 REGMBC(0x1e22) REGMBC(0x1e26) REGMBC(0x1e28) | |
| 167 | 883 return; |
| 6765 | 884 case 'I': case 0xcc: case 0xcd: case 0xce: case 0xcf: |
| 2974 | 885 CASEMBC(0x128) CASEMBC(0x12a) CASEMBC(0x12c) CASEMBC(0x12e) |
| 886 CASEMBC(0x130) CASEMBC(0x1cf) CASEMBC(0x1ec8) | |
| 6765 | 887 regmbc('I'); regmbc(0xcc); regmbc(0xcd); |
| 888 regmbc(0xce); regmbc(0xcf); | |
| 2974 | 889 REGMBC(0x128) REGMBC(0x12a) REGMBC(0x12c) |
| 890 REGMBC(0x12e) REGMBC(0x130) REGMBC(0x1cf) | |
| 891 REGMBC(0x1ec8) | |
| 892 return; | |
| 893 case 'J': CASEMBC(0x134) | |
| 894 regmbc('J'); REGMBC(0x134) | |
| 895 return; | |
| 896 case 'K': CASEMBC(0x136) CASEMBC(0x1e8) CASEMBC(0x1e30) | |
| 897 CASEMBC(0x1e34) | |
| 898 regmbc('K'); REGMBC(0x136) REGMBC(0x1e8) | |
| 899 REGMBC(0x1e30) REGMBC(0x1e34) | |
| 900 return; | |
| 901 case 'L': CASEMBC(0x139) CASEMBC(0x13b) CASEMBC(0x13d) | |
| 902 CASEMBC(0x13f) CASEMBC(0x141) CASEMBC(0x1e3a) | |
| 903 regmbc('L'); REGMBC(0x139) REGMBC(0x13b) | |
| 904 REGMBC(0x13d) REGMBC(0x13f) REGMBC(0x141) | |
| 905 REGMBC(0x1e3a) | |
| 906 return; | |
| 907 case 'M': CASEMBC(0x1e3e) CASEMBC(0x1e40) | |
| 908 regmbc('M'); REGMBC(0x1e3e) REGMBC(0x1e40) | |
| 167 | 909 return; |
| 6765 | 910 case 'N': case 0xd1: |
| 2974 | 911 CASEMBC(0x143) CASEMBC(0x145) CASEMBC(0x147) CASEMBC(0x1e44) |
| 912 CASEMBC(0x1e48) | |
| 6765 | 913 regmbc('N'); regmbc(0xd1); |
| 2974 | 914 REGMBC(0x143) REGMBC(0x145) REGMBC(0x147) |
| 915 REGMBC(0x1e44) REGMBC(0x1e48) | |
| 167 | 916 return; |
| 6765 | 917 case 'O': case 0xd2: case 0xd3: case 0xd4: case 0xd5: |
| 918 case 0xd6: case 0xd8: | |
| 2974 | 919 CASEMBC(0x14c) CASEMBC(0x14e) CASEMBC(0x150) CASEMBC(0x1a0) |
| 920 CASEMBC(0x1d1) CASEMBC(0x1ea) CASEMBC(0x1ec) CASEMBC(0x1ece) | |
| 6765 | 921 regmbc('O'); regmbc(0xd2); regmbc(0xd3); |
| 922 regmbc(0xd4); regmbc(0xd5); regmbc(0xd6); | |
| 923 regmbc(0xd8); | |
| 2974 | 924 REGMBC(0x14c) REGMBC(0x14e) REGMBC(0x150) |
| 925 REGMBC(0x1a0) REGMBC(0x1d1) REGMBC(0x1ea) | |
| 926 REGMBC(0x1ec) REGMBC(0x1ece) | |
| 927 return; | |
| 928 case 'P': case 0x1e54: case 0x1e56: | |
| 929 regmbc('P'); REGMBC(0x1e54) REGMBC(0x1e56) | |
| 930 return; | |
| 931 case 'R': CASEMBC(0x154) CASEMBC(0x156) CASEMBC(0x158) | |
| 932 CASEMBC(0x1e58) CASEMBC(0x1e5e) | |
| 933 regmbc('R'); REGMBC(0x154) REGMBC(0x156) REGMBC(0x158) | |
| 934 REGMBC(0x1e58) REGMBC(0x1e5e) | |
| 935 return; | |
| 936 case 'S': CASEMBC(0x15a) CASEMBC(0x15c) CASEMBC(0x15e) | |
| 937 CASEMBC(0x160) CASEMBC(0x1e60) | |
| 938 regmbc('S'); REGMBC(0x15a) REGMBC(0x15c) | |
| 939 REGMBC(0x15e) REGMBC(0x160) REGMBC(0x1e60) | |
| 940 return; | |
| 941 case 'T': CASEMBC(0x162) CASEMBC(0x164) CASEMBC(0x166) | |
| 942 CASEMBC(0x1e6a) CASEMBC(0x1e6e) | |
| 943 regmbc('T'); REGMBC(0x162) REGMBC(0x164) | |
| 944 REGMBC(0x166) REGMBC(0x1e6a) REGMBC(0x1e6e) | |
| 167 | 945 return; |
| 6765 | 946 case 'U': case 0xd9: case 0xda: case 0xdb: case 0xdc: |
| 2974 | 947 CASEMBC(0x168) CASEMBC(0x16a) CASEMBC(0x16c) CASEMBC(0x16e) |
| 948 CASEMBC(0x170) CASEMBC(0x172) CASEMBC(0x1af) CASEMBC(0x1d3) | |
| 949 CASEMBC(0x1ee6) | |
| 6765 | 950 regmbc('U'); regmbc(0xd9); regmbc(0xda); |
| 951 regmbc(0xdb); regmbc(0xdc); | |
| 2974 | 952 REGMBC(0x168) REGMBC(0x16a) REGMBC(0x16c) |
| 953 REGMBC(0x16e) REGMBC(0x170) REGMBC(0x172) | |
| 954 REGMBC(0x1af) REGMBC(0x1d3) REGMBC(0x1ee6) | |
| 955 return; | |
| 956 case 'V': CASEMBC(0x1e7c) | |
| 957 regmbc('V'); REGMBC(0x1e7c) | |
| 958 return; | |
| 959 case 'W': CASEMBC(0x174) CASEMBC(0x1e80) CASEMBC(0x1e82) | |
| 960 CASEMBC(0x1e84) CASEMBC(0x1e86) | |
| 961 regmbc('W'); REGMBC(0x174) REGMBC(0x1e80) | |
| 962 REGMBC(0x1e82) REGMBC(0x1e84) REGMBC(0x1e86) | |
| 963 return; | |
| 964 case 'X': CASEMBC(0x1e8a) CASEMBC(0x1e8c) | |
| 965 regmbc('X'); REGMBC(0x1e8a) REGMBC(0x1e8c) | |
| 167 | 966 return; |
| 6765 | 967 case 'Y': case 0xdd: |
| 2974 | 968 CASEMBC(0x176) CASEMBC(0x178) CASEMBC(0x1e8e) CASEMBC(0x1ef2) |
| 969 CASEMBC(0x1ef6) CASEMBC(0x1ef8) | |
| 6765 | 970 regmbc('Y'); regmbc(0xdd); |
| 2974 | 971 REGMBC(0x176) REGMBC(0x178) REGMBC(0x1e8e) |
| 972 REGMBC(0x1ef2) REGMBC(0x1ef6) REGMBC(0x1ef8) | |
| 973 return; | |
| 974 case 'Z': CASEMBC(0x179) CASEMBC(0x17b) CASEMBC(0x17d) | |
| 975 CASEMBC(0x1b5) CASEMBC(0x1e90) CASEMBC(0x1e94) | |
| 976 regmbc('Z'); REGMBC(0x179) REGMBC(0x17b) | |
| 977 REGMBC(0x17d) REGMBC(0x1b5) REGMBC(0x1e90) | |
| 978 REGMBC(0x1e94) | |
| 167 | 979 return; |
| 6765 | 980 case 'a': case 0xe0: case 0xe1: case 0xe2: |
| 981 case 0xe3: case 0xe4: case 0xe5: | |
| 2974 | 982 CASEMBC(0x101) CASEMBC(0x103) CASEMBC(0x105) CASEMBC(0x1ce) |
| 983 CASEMBC(0x1df) CASEMBC(0x1e1) CASEMBC(0x1ea3) | |
| 6765 | 984 regmbc('a'); regmbc(0xe0); regmbc(0xe1); |
| 985 regmbc(0xe2); regmbc(0xe3); regmbc(0xe4); | |
| 986 regmbc(0xe5); | |
| 2974 | 987 REGMBC(0x101) REGMBC(0x103) REGMBC(0x105) |
| 988 REGMBC(0x1ce) REGMBC(0x1df) REGMBC(0x1e1) | |
| 989 REGMBC(0x1ea3) | |
| 990 return; | |
| 991 case 'b': CASEMBC(0x1e03) CASEMBC(0x1e07) | |
| 992 regmbc('b'); REGMBC(0x1e03) REGMBC(0x1e07) | |
| 167 | 993 return; |
| 6765 | 994 case 'c': case 0xe7: |
| 2974 | 995 CASEMBC(0x107) CASEMBC(0x109) CASEMBC(0x10b) CASEMBC(0x10d) |
| 6765 | 996 regmbc('c'); regmbc(0xe7); |
| 2974 | 997 REGMBC(0x107) REGMBC(0x109) REGMBC(0x10b) |
| 998 REGMBC(0x10d) | |
| 999 return; | |
| 6914 | 1000 case 'd': CASEMBC(0x10f) CASEMBC(0x111) CASEMBC(0x1e0b) |
| 1001 CASEMBC(0x1e0f) CASEMBC(0x1e11) | |
| 2974 | 1002 regmbc('d'); REGMBC(0x10f) REGMBC(0x111) |
| 6914 | 1003 REGMBC(0x1e0b) REGMBC(0x1e0f) REGMBC(0x1e11) |
| 167 | 1004 return; |
| 6765 | 1005 case 'e': case 0xe8: case 0xe9: case 0xea: case 0xeb: |
| 2974 | 1006 CASEMBC(0x113) CASEMBC(0x115) CASEMBC(0x117) CASEMBC(0x119) |
| 1007 CASEMBC(0x11b) CASEMBC(0x1ebb) CASEMBC(0x1ebd) | |
| 6765 | 1008 regmbc('e'); regmbc(0xe8); regmbc(0xe9); |
| 1009 regmbc(0xea); regmbc(0xeb); | |
| 2974 | 1010 REGMBC(0x113) REGMBC(0x115) REGMBC(0x117) |
| 1011 REGMBC(0x119) REGMBC(0x11b) REGMBC(0x1ebb) | |
| 1012 REGMBC(0x1ebd) | |
| 1013 return; | |
| 1014 case 'f': CASEMBC(0x1e1f) | |
| 1015 regmbc('f'); REGMBC(0x1e1f) | |
| 1016 return; | |
| 1017 case 'g': CASEMBC(0x11d) CASEMBC(0x11f) CASEMBC(0x121) | |
| 1018 CASEMBC(0x123) CASEMBC(0x1e5) CASEMBC(0x1e7) CASEMBC(0x1f5) | |
| 1019 CASEMBC(0x1e21) | |
| 1020 regmbc('g'); REGMBC(0x11d) REGMBC(0x11f) | |
| 1021 REGMBC(0x121) REGMBC(0x123) REGMBC(0x1e5) | |
| 1022 REGMBC(0x1e7) REGMBC(0x1f5) REGMBC(0x1e21) | |
| 1023 return; | |
| 1024 case 'h': CASEMBC(0x125) CASEMBC(0x127) CASEMBC(0x1e23) | |
| 1025 CASEMBC(0x1e27) CASEMBC(0x1e29) CASEMBC(0x1e96) | |
| 1026 regmbc('h'); REGMBC(0x125) REGMBC(0x127) | |
| 1027 REGMBC(0x1e23) REGMBC(0x1e27) REGMBC(0x1e29) | |
| 1028 REGMBC(0x1e96) | |
| 167 | 1029 return; |
| 6765 | 1030 case 'i': case 0xec: case 0xed: case 0xee: case 0xef: |
| 2974 | 1031 CASEMBC(0x129) CASEMBC(0x12b) CASEMBC(0x12d) CASEMBC(0x12f) |
| 1032 CASEMBC(0x1d0) CASEMBC(0x1ec9) | |
| 6765 | 1033 regmbc('i'); regmbc(0xec); regmbc(0xed); |
| 1034 regmbc(0xee); regmbc(0xef); | |
| 2974 | 1035 REGMBC(0x129) REGMBC(0x12b) REGMBC(0x12d) |
| 1036 REGMBC(0x12f) REGMBC(0x1d0) REGMBC(0x1ec9) | |
| 1037 return; | |
| 1038 case 'j': CASEMBC(0x135) CASEMBC(0x1f0) | |
| 1039 regmbc('j'); REGMBC(0x135) REGMBC(0x1f0) | |
| 1040 return; | |
| 1041 case 'k': CASEMBC(0x137) CASEMBC(0x1e9) CASEMBC(0x1e31) | |
| 1042 CASEMBC(0x1e35) | |
| 1043 regmbc('k'); REGMBC(0x137) REGMBC(0x1e9) | |
| 1044 REGMBC(0x1e31) REGMBC(0x1e35) | |
| 1045 return; | |
| 1046 case 'l': CASEMBC(0x13a) CASEMBC(0x13c) CASEMBC(0x13e) | |
| 1047 CASEMBC(0x140) CASEMBC(0x142) CASEMBC(0x1e3b) | |
| 1048 regmbc('l'); REGMBC(0x13a) REGMBC(0x13c) | |
| 1049 REGMBC(0x13e) REGMBC(0x140) REGMBC(0x142) | |
| 1050 REGMBC(0x1e3b) | |
| 1051 return; | |
| 1052 case 'm': CASEMBC(0x1e3f) CASEMBC(0x1e41) | |
| 1053 regmbc('m'); REGMBC(0x1e3f) REGMBC(0x1e41) | |
| 167 | 1054 return; |
| 6765 | 1055 case 'n': case 0xf1: |
| 2974 | 1056 CASEMBC(0x144) CASEMBC(0x146) CASEMBC(0x148) CASEMBC(0x149) |
| 1057 CASEMBC(0x1e45) CASEMBC(0x1e49) | |
| 6765 | 1058 regmbc('n'); regmbc(0xf1); |
| 2974 | 1059 REGMBC(0x144) REGMBC(0x146) REGMBC(0x148) |
| 1060 REGMBC(0x149) REGMBC(0x1e45) REGMBC(0x1e49) | |
| 167 | 1061 return; |
| 6765 | 1062 case 'o': case 0xf2: case 0xf3: case 0xf4: case 0xf5: |
| 1063 case 0xf6: case 0xf8: | |
| 2974 | 1064 CASEMBC(0x14d) CASEMBC(0x14f) CASEMBC(0x151) CASEMBC(0x1a1) |
| 1065 CASEMBC(0x1d2) CASEMBC(0x1eb) CASEMBC(0x1ed) CASEMBC(0x1ecf) | |
| 6765 | 1066 regmbc('o'); regmbc(0xf2); regmbc(0xf3); |
| 1067 regmbc(0xf4); regmbc(0xf5); regmbc(0xf6); | |
| 1068 regmbc(0xf8); | |
| 2974 | 1069 REGMBC(0x14d) REGMBC(0x14f) REGMBC(0x151) |
| 1070 REGMBC(0x1a1) REGMBC(0x1d2) REGMBC(0x1eb) | |
| 1071 REGMBC(0x1ed) REGMBC(0x1ecf) | |
| 1072 return; | |
| 1073 case 'p': CASEMBC(0x1e55) CASEMBC(0x1e57) | |
| 1074 regmbc('p'); REGMBC(0x1e55) REGMBC(0x1e57) | |
| 1075 return; | |
| 1076 case 'r': CASEMBC(0x155) CASEMBC(0x157) CASEMBC(0x159) | |
| 1077 CASEMBC(0x1e59) CASEMBC(0x1e5f) | |
| 1078 regmbc('r'); REGMBC(0x155) REGMBC(0x157) REGMBC(0x159) | |
| 1079 REGMBC(0x1e59) REGMBC(0x1e5f) | |
| 1080 return; | |
| 1081 case 's': CASEMBC(0x15b) CASEMBC(0x15d) CASEMBC(0x15f) | |
| 1082 CASEMBC(0x161) CASEMBC(0x1e61) | |
| 1083 regmbc('s'); REGMBC(0x15b) REGMBC(0x15d) | |
| 1084 REGMBC(0x15f) REGMBC(0x161) REGMBC(0x1e61) | |
| 1085 return; | |
| 1086 case 't': CASEMBC(0x163) CASEMBC(0x165) CASEMBC(0x167) | |
| 1087 CASEMBC(0x1e6b) CASEMBC(0x1e6f) CASEMBC(0x1e97) | |
| 1088 regmbc('t'); REGMBC(0x163) REGMBC(0x165) REGMBC(0x167) | |
| 1089 REGMBC(0x1e6b) REGMBC(0x1e6f) REGMBC(0x1e97) | |
| 167 | 1090 return; |
| 6765 | 1091 case 'u': case 0xf9: case 0xfa: case 0xfb: case 0xfc: |
| 2974 | 1092 CASEMBC(0x169) CASEMBC(0x16b) CASEMBC(0x16d) CASEMBC(0x16f) |
| 1093 CASEMBC(0x171) CASEMBC(0x173) CASEMBC(0x1b0) CASEMBC(0x1d4) | |
| 1094 CASEMBC(0x1ee7) | |
| 6765 | 1095 regmbc('u'); regmbc(0xf9); regmbc(0xfa); |
| 1096 regmbc(0xfb); regmbc(0xfc); | |
| 2974 | 1097 REGMBC(0x169) REGMBC(0x16b) REGMBC(0x16d) |
| 1098 REGMBC(0x16f) REGMBC(0x171) REGMBC(0x173) | |
| 1099 REGMBC(0x1b0) REGMBC(0x1d4) REGMBC(0x1ee7) | |
| 1100 return; | |
| 1101 case 'v': CASEMBC(0x1e7d) | |
| 1102 regmbc('v'); REGMBC(0x1e7d) | |
| 1103 return; | |
| 1104 case 'w': CASEMBC(0x175) CASEMBC(0x1e81) CASEMBC(0x1e83) | |
| 1105 CASEMBC(0x1e85) CASEMBC(0x1e87) CASEMBC(0x1e98) | |
| 1106 regmbc('w'); REGMBC(0x175) REGMBC(0x1e81) | |
| 1107 REGMBC(0x1e83) REGMBC(0x1e85) REGMBC(0x1e87) | |
| 1108 REGMBC(0x1e98) | |
| 1109 return; | |
| 1110 case 'x': CASEMBC(0x1e8b) CASEMBC(0x1e8d) | |
| 1111 regmbc('x'); REGMBC(0x1e8b) REGMBC(0x1e8d) | |
| 167 | 1112 return; |
| 6765 | 1113 case 'y': case 0xfd: case 0xff: |
| 2974 | 1114 CASEMBC(0x177) CASEMBC(0x1e8f) CASEMBC(0x1e99) |
| 1115 CASEMBC(0x1ef3) CASEMBC(0x1ef7) CASEMBC(0x1ef9) | |
| 6765 | 1116 regmbc('y'); regmbc(0xfd); regmbc(0xff); |
| 2974 | 1117 REGMBC(0x177) REGMBC(0x1e8f) REGMBC(0x1e99) |
| 1118 REGMBC(0x1ef3) REGMBC(0x1ef7) REGMBC(0x1ef9) | |
| 1119 return; | |
| 1120 case 'z': CASEMBC(0x17a) CASEMBC(0x17c) CASEMBC(0x17e) | |
| 1121 CASEMBC(0x1b6) CASEMBC(0x1e91) CASEMBC(0x1e95) | |
| 1122 regmbc('z'); REGMBC(0x17a) REGMBC(0x17c) | |
| 1123 REGMBC(0x17e) REGMBC(0x1b6) REGMBC(0x1e91) | |
| 1124 REGMBC(0x1e95) | |
| 167 | 1125 return; |
| 1126 } | |
|
2247
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Add patch to improve support of z/OS (OS/390). (Ralf Schandl)
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parents:
2173
diff
changeset
|
1127 #endif |
| 167 | 1128 } |
| 1129 regmbc(c); | |
| 1130 } | |
| 1131 | |
| 1132 /* | |
| 1133 * Check for a collating element "[.a.]". "pp" points to the '['. | |
| 1134 * Returns a character. Zero means that no item was recognized. Otherwise | |
| 1135 * "pp" is advanced to after the item. | |
| 1136 * Currently only single characters are recognized! | |
| 1137 */ | |
| 1138 static int | |
|
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commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
1139 get_coll_element(char_u **pp) |
| 167 | 1140 { |
| 1141 int c; | |
| 1142 int l = 1; | |
| 1143 char_u *p = *pp; | |
| 1144 | |
| 6830 | 1145 if (p[0] != NUL && p[1] == '.') |
| 167 | 1146 { |
| 1147 #ifdef FEAT_MBYTE | |
| 1148 if (has_mbyte) | |
| 474 | 1149 l = (*mb_ptr2len)(p + 2); |
| 167 | 1150 #endif |
| 1151 if (p[l + 2] == '.' && p[l + 3] == ']') | |
| 1152 { | |
| 1153 #ifdef FEAT_MBYTE | |
| 1154 if (has_mbyte) | |
| 1155 c = mb_ptr2char(p + 2); | |
| 1156 else | |
| 1157 #endif | |
| 1158 c = p[2]; | |
| 1159 *pp += l + 4; | |
| 1160 return c; | |
| 1161 } | |
| 1162 } | |
| 1163 return 0; | |
| 1164 } | |
| 1165 | |
|
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parents:
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diff
changeset
|
1166 static int reg_cpo_lit; /* 'cpoptions' contains 'l' flag */ |
|
a62695305e03
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parents:
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diff
changeset
|
1167 static int reg_cpo_bsl; /* 'cpoptions' contains '\' flag */ |
|
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parents:
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1168 |
|
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|
1169 static void |
|
7833
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
1170 get_cpo_flags(void) |
|
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|
1171 { |
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parents:
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diff
changeset
|
1172 reg_cpo_lit = vim_strchr(p_cpo, CPO_LITERAL) != NULL; |
|
a62695305e03
updated for version 7.3.1119
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parents:
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diff
changeset
|
1173 reg_cpo_bsl = vim_strchr(p_cpo, CPO_BACKSL) != NULL; |
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parents:
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|
1174 } |
| 167 | 1175 |
| 1176 /* | |
| 1177 * Skip over a "[]" range. | |
| 1178 * "p" must point to the character after the '['. | |
| 1179 * The returned pointer is on the matching ']', or the terminating NUL. | |
| 1180 */ | |
| 1181 static char_u * | |
|
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c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
1182 skip_anyof(char_u *p) |
| 167 | 1183 { |
| 1184 #ifdef FEAT_MBYTE | |
| 1185 int l; | |
| 1186 #endif | |
| 1187 | |
| 1188 if (*p == '^') /* Complement of range. */ | |
| 1189 ++p; | |
| 1190 if (*p == ']' || *p == '-') | |
| 1191 ++p; | |
| 1192 while (*p != NUL && *p != ']') | |
| 1193 { | |
| 1194 #ifdef FEAT_MBYTE | |
| 474 | 1195 if (has_mbyte && (l = (*mb_ptr2len)(p)) > 1) |
| 167 | 1196 p += l; |
| 1197 else | |
| 1198 #endif | |
| 1199 if (*p == '-') | |
| 1200 { | |
| 1201 ++p; | |
| 1202 if (*p != ']' && *p != NUL) | |
|
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patch 8.0.0451: some macros are in lower case
Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
1203 MB_PTR_ADV(p); |
| 167 | 1204 } |
| 1205 else if (*p == '\\' | |
|
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changeset
|
1206 && !reg_cpo_bsl |
| 167 | 1207 && (vim_strchr(REGEXP_INRANGE, p[1]) != NULL |
|
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1208 || (!reg_cpo_lit && vim_strchr(REGEXP_ABBR, p[1]) != NULL))) |
| 167 | 1209 p += 2; |
| 1210 else if (*p == '[') | |
| 1211 { | |
| 1212 if (get_char_class(&p) == CLASS_NONE | |
| 1213 && get_equi_class(&p) == 0 | |
| 6830 | 1214 && get_coll_element(&p) == 0 |
| 1215 && *p != NUL) | |
| 1216 ++p; /* it is not a class name and not NUL */ | |
| 167 | 1217 } |
| 1218 else | |
| 1219 ++p; | |
| 1220 } | |
| 1221 | |
| 1222 return p; | |
| 1223 } | |
| 1224 | |
| 1225 /* | |
| 7 | 1226 * Skip past regular expression. |
| 153 | 1227 * Stop at end of "startp" or where "dirc" is found ('/', '?', etc). |
| 7 | 1228 * Take care of characters with a backslash in front of it. |
| 1229 * Skip strings inside [ and ]. | |
| 1230 * When "newp" is not NULL and "dirc" is '?', make an allocated copy of the | |
| 1231 * expression and change "\?" to "?". If "*newp" is not NULL the expression | |
| 1232 * is changed in-place. | |
| 1233 */ | |
| 1234 char_u * | |
|
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1235 skip_regexp( |
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1236 char_u *startp, |
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1237 int dirc, |
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1238 int magic, |
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1239 char_u **newp) |
| 7 | 1240 { |
| 1241 int mymagic; | |
| 1242 char_u *p = startp; | |
| 1243 | |
| 1244 if (magic) | |
| 1245 mymagic = MAGIC_ON; | |
| 1246 else | |
| 1247 mymagic = MAGIC_OFF; | |
|
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1248 get_cpo_flags(); |
| 7 | 1249 |
|
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1250 for (; p[0] != NUL; MB_PTR_ADV(p)) |
| 7 | 1251 { |
| 1252 if (p[0] == dirc) /* found end of regexp */ | |
| 1253 break; | |
| 1254 if ((p[0] == '[' && mymagic >= MAGIC_ON) | |
| 1255 || (p[0] == '\\' && p[1] == '[' && mymagic <= MAGIC_OFF)) | |
| 1256 { | |
| 1257 p = skip_anyof(p + 1); | |
| 1258 if (p[0] == NUL) | |
| 1259 break; | |
| 1260 } | |
| 1261 else if (p[0] == '\\' && p[1] != NUL) | |
| 1262 { | |
| 1263 if (dirc == '?' && newp != NULL && p[1] == '?') | |
| 1264 { | |
| 1265 /* change "\?" to "?", make a copy first. */ | |
| 1266 if (*newp == NULL) | |
| 1267 { | |
| 1268 *newp = vim_strsave(startp); | |
| 1269 if (*newp != NULL) | |
| 1270 p = *newp + (p - startp); | |
| 1271 } | |
| 1272 if (*newp != NULL) | |
| 1621 | 1273 STRMOVE(p, p + 1); |
| 7 | 1274 else |
| 1275 ++p; | |
| 1276 } | |
| 1277 else | |
| 1278 ++p; /* skip next character */ | |
| 1279 if (*p == 'v') | |
| 1280 mymagic = MAGIC_ALL; | |
| 1281 else if (*p == 'V') | |
| 1282 mymagic = MAGIC_NONE; | |
| 1283 } | |
| 1284 } | |
| 1285 return p; | |
| 1286 } | |
| 1287 | |
|
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1288 /* |
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1289 * Return TRUE if the back reference is legal. We must have seen the close |
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1290 * brace. |
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1291 * TODO: Should also check that we don't refer to something that is repeated |
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1292 * (+*=): what instance of the repetition should we match? |
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1293 */ |
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1294 static int |
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1295 seen_endbrace(int refnum) |
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1296 { |
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1297 if (!had_endbrace[refnum]) |
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1298 { |
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1299 char_u *p; |
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1300 |
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1301 /* Trick: check if "@<=" or "@<!" follows, in which case |
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1302 * the \1 can appear before the referenced match. */ |
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1303 for (p = regparse; *p != NUL; ++p) |
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1304 if (p[0] == '@' && p[1] == '<' && (p[2] == '!' || p[2] == '=')) |
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1305 break; |
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1306 if (*p == NUL) |
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1307 { |
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1308 emsg(_("E65: Illegal back reference")); |
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1309 rc_did_emsg = TRUE; |
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1310 return FALSE; |
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1311 } |
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1312 } |
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1313 return TRUE; |
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1314 } |
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1315 |
| 7 | 1316 /* |
| 4444 | 1317 * bt_regcomp() - compile a regular expression into internal code for the |
| 1318 * traditional back track matcher. | |
| 41 | 1319 * Returns the program in allocated space. Returns NULL for an error. |
| 7 | 1320 * |
| 1321 * We can't allocate space until we know how big the compiled form will be, | |
| 1322 * but we can't compile it (and thus know how big it is) until we've got a | |
| 1323 * place to put the code. So we cheat: we compile it twice, once with code | |
| 1324 * generation turned off and size counting turned on, and once "for real". | |
| 1325 * This also means that we don't allocate space until we are sure that the | |
| 1326 * thing really will compile successfully, and we never have to move the | |
| 1327 * code and thus invalidate pointers into it. (Note that it has to be in | |
| 1328 * one piece because vim_free() must be able to free it all.) | |
| 1329 * | |
| 1330 * Whether upper/lower case is to be ignored is decided when executing the | |
| 1331 * program, it does not matter here. | |
| 1332 * | |
| 1333 * Beware that the optimization-preparation code in here knows about some | |
| 1334 * of the structure of the compiled regexp. | |
| 1335 * "re_flags": RE_MAGIC and/or RE_STRING. | |
| 1336 */ | |
| 4444 | 1337 static regprog_T * |
|
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1338 bt_regcomp(char_u *expr, int re_flags) |
| 7 | 1339 { |
| 4444 | 1340 bt_regprog_T *r; |
| 7 | 1341 char_u *scan; |
| 1342 char_u *longest; | |
| 1343 int len; | |
| 1344 int flags; | |
| 1345 | |
| 1346 if (expr == NULL) | |
| 1347 EMSG_RET_NULL(_(e_null)); | |
| 1348 | |
| 1349 init_class_tab(); | |
| 1350 | |
| 1351 /* | |
| 1352 * First pass: determine size, legality. | |
| 1353 */ | |
| 1354 regcomp_start(expr, re_flags); | |
| 1355 regcode = JUST_CALC_SIZE; | |
| 1356 regc(REGMAGIC); | |
| 1357 if (reg(REG_NOPAREN, &flags) == NULL) | |
| 1358 return NULL; | |
| 1359 | |
| 1360 /* Allocate space. */ | |
| 4444 | 1361 r = (bt_regprog_T *)lalloc(sizeof(bt_regprog_T) + regsize, TRUE); |
| 7 | 1362 if (r == NULL) |
| 1363 return NULL; | |
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1364 r->re_in_use = FALSE; |
| 7 | 1365 |
| 1366 /* | |
| 1367 * Second pass: emit code. | |
| 1368 */ | |
| 1369 regcomp_start(expr, re_flags); | |
| 1370 regcode = r->program; | |
| 1371 regc(REGMAGIC); | |
| 2010 | 1372 if (reg(REG_NOPAREN, &flags) == NULL || reg_toolong) |
| 7 | 1373 { |
| 1374 vim_free(r); | |
| 2010 | 1375 if (reg_toolong) |
| 1376 EMSG_RET_NULL(_("E339: Pattern too long")); | |
| 7 | 1377 return NULL; |
| 1378 } | |
| 1379 | |
| 1380 /* Dig out information for optimizations. */ | |
| 1381 r->regstart = NUL; /* Worst-case defaults. */ | |
| 1382 r->reganch = 0; | |
| 1383 r->regmust = NULL; | |
| 1384 r->regmlen = 0; | |
| 1385 r->regflags = regflags; | |
| 1386 if (flags & HASNL) | |
| 1387 r->regflags |= RF_HASNL; | |
| 1388 if (flags & HASLOOKBH) | |
| 1389 r->regflags |= RF_LOOKBH; | |
| 1390 #ifdef FEAT_SYN_HL | |
| 1391 /* Remember whether this pattern has any \z specials in it. */ | |
| 1392 r->reghasz = re_has_z; | |
| 1393 #endif | |
| 1394 scan = r->program + 1; /* First BRANCH. */ | |
| 1395 if (OP(regnext(scan)) == END) /* Only one top-level choice. */ | |
| 1396 { | |
| 1397 scan = OPERAND(scan); | |
| 1398 | |
| 1399 /* Starting-point info. */ | |
| 1400 if (OP(scan) == BOL || OP(scan) == RE_BOF) | |
| 1401 { | |
| 1402 r->reganch++; | |
| 1403 scan = regnext(scan); | |
| 1404 } | |
| 1405 | |
| 1406 if (OP(scan) == EXACTLY) | |
| 1407 { | |
| 1408 #ifdef FEAT_MBYTE | |
| 1409 if (has_mbyte) | |
| 1410 r->regstart = (*mb_ptr2char)(OPERAND(scan)); | |
| 1411 else | |
| 1412 #endif | |
| 1413 r->regstart = *OPERAND(scan); | |
| 1414 } | |
| 1415 else if ((OP(scan) == BOW | |
| 1416 || OP(scan) == EOW | |
| 1417 || OP(scan) == NOTHING | |
| 1418 || OP(scan) == MOPEN + 0 || OP(scan) == NOPEN | |
| 1419 || OP(scan) == MCLOSE + 0 || OP(scan) == NCLOSE) | |
| 1420 && OP(regnext(scan)) == EXACTLY) | |
| 1421 { | |
| 1422 #ifdef FEAT_MBYTE | |
| 1423 if (has_mbyte) | |
| 1424 r->regstart = (*mb_ptr2char)(OPERAND(regnext(scan))); | |
| 1425 else | |
| 1426 #endif | |
| 1427 r->regstart = *OPERAND(regnext(scan)); | |
| 1428 } | |
| 1429 | |
| 1430 /* | |
| 1431 * If there's something expensive in the r.e., find the longest | |
| 1432 * literal string that must appear and make it the regmust. Resolve | |
| 1433 * ties in favor of later strings, since the regstart check works | |
| 1434 * with the beginning of the r.e. and avoiding duplication | |
| 1435 * strengthens checking. Not a strong reason, but sufficient in the | |
| 1436 * absence of others. | |
| 1437 */ | |
| 1438 /* | |
| 1439 * When the r.e. starts with BOW, it is faster to look for a regmust | |
| 1440 * first. Used a lot for "#" and "*" commands. (Added by mool). | |
| 1441 */ | |
| 1442 if ((flags & SPSTART || OP(scan) == BOW || OP(scan) == EOW) | |
| 1443 && !(flags & HASNL)) | |
| 1444 { | |
| 1445 longest = NULL; | |
| 1446 len = 0; | |
| 1447 for (; scan != NULL; scan = regnext(scan)) | |
| 1448 if (OP(scan) == EXACTLY && STRLEN(OPERAND(scan)) >= (size_t)len) | |
| 1449 { | |
| 1450 longest = OPERAND(scan); | |
| 1451 len = (int)STRLEN(OPERAND(scan)); | |
| 1452 } | |
| 1453 r->regmust = longest; | |
| 1454 r->regmlen = len; | |
| 1455 } | |
| 1456 } | |
| 4444 | 1457 #ifdef BT_REGEXP_DUMP |
| 7 | 1458 regdump(expr, r); |
| 1459 #endif | |
| 4444 | 1460 r->engine = &bt_regengine; |
| 1461 return (regprog_T *)r; | |
| 7 | 1462 } |
| 1463 | |
| 1464 /* | |
|
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1465 * Free a compiled regexp program, returned by bt_regcomp(). |
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1466 */ |
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1467 static void |
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1468 bt_regfree(regprog_T *prog) |
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1469 { |
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1470 vim_free(prog); |
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1471 } |
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1472 |
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1473 /* |
| 7 | 1474 * Setup to parse the regexp. Used once to get the length and once to do it. |
| 1475 */ | |
| 1476 static void | |
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1477 regcomp_start( |
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1478 char_u *expr, |
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1479 int re_flags) /* see vim_regcomp() */ |
| 7 | 1480 { |
| 1481 initchr(expr); | |
| 1482 if (re_flags & RE_MAGIC) | |
| 1483 reg_magic = MAGIC_ON; | |
| 1484 else | |
| 1485 reg_magic = MAGIC_OFF; | |
| 1486 reg_string = (re_flags & RE_STRING); | |
| 481 | 1487 reg_strict = (re_flags & RE_STRICT); |
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1488 get_cpo_flags(); |
| 7 | 1489 |
| 1490 num_complex_braces = 0; | |
| 1491 regnpar = 1; | |
| 1492 vim_memset(had_endbrace, 0, sizeof(had_endbrace)); | |
| 1493 #ifdef FEAT_SYN_HL | |
| 1494 regnzpar = 1; | |
| 1495 re_has_z = 0; | |
| 1496 #endif | |
| 1497 regsize = 0L; | |
| 2010 | 1498 reg_toolong = FALSE; |
| 7 | 1499 regflags = 0; |
| 1500 #if defined(FEAT_SYN_HL) || defined(PROTO) | |
| 1501 had_eol = FALSE; | |
| 1502 #endif | |
| 1503 } | |
| 1504 | |
| 1505 #if defined(FEAT_SYN_HL) || defined(PROTO) | |
| 1506 /* | |
| 1507 * Check if during the previous call to vim_regcomp the EOL item "$" has been | |
| 1508 * found. This is messy, but it works fine. | |
| 1509 */ | |
| 1510 int | |
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1511 vim_regcomp_had_eol(void) |
| 7 | 1512 { |
| 1513 return had_eol; | |
| 1514 } | |
| 1515 #endif | |
| 1516 | |
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1517 // variables used for parsing |
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1518 static int at_start; // True when on the first character |
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1519 static int prev_at_start; // True when on the second character |
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1520 |
| 7 | 1521 /* |
| 4444 | 1522 * Parse regular expression, i.e. main body or parenthesized thing. |
| 7 | 1523 * |
| 1524 * Caller must absorb opening parenthesis. | |
| 1525 * | |
| 1526 * Combining parenthesis handling with the base level of regular expression | |
| 1527 * is a trifle forced, but the need to tie the tails of the branches to what | |
| 1528 * follows makes it hard to avoid. | |
| 1529 */ | |
| 1530 static char_u * | |
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1531 reg( |
|
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1532 int paren, /* REG_NOPAREN, REG_PAREN, REG_NPAREN or REG_ZPAREN */ |
|
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commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
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|
1533 int *flagp) |
| 7 | 1534 { |
| 1535 char_u *ret; | |
| 1536 char_u *br; | |
| 1537 char_u *ender; | |
| 1538 int parno = 0; | |
| 1539 int flags; | |
| 1540 | |
| 1541 *flagp = HASWIDTH; /* Tentatively. */ | |
| 1542 | |
| 1543 #ifdef FEAT_SYN_HL | |
| 1544 if (paren == REG_ZPAREN) | |
| 1545 { | |
| 1546 /* Make a ZOPEN node. */ | |
| 1547 if (regnzpar >= NSUBEXP) | |
| 1548 EMSG_RET_NULL(_("E50: Too many \\z(")); | |
| 1549 parno = regnzpar; | |
| 1550 regnzpar++; | |
| 1551 ret = regnode(ZOPEN + parno); | |
| 1552 } | |
| 1553 else | |
| 1554 #endif | |
| 1555 if (paren == REG_PAREN) | |
| 1556 { | |
| 1557 /* Make a MOPEN node. */ | |
| 1558 if (regnpar >= NSUBEXP) | |
| 4444 | 1559 EMSG2_RET_NULL(_("E51: Too many %s("), reg_magic == MAGIC_ALL); |
| 7 | 1560 parno = regnpar; |
| 1561 ++regnpar; | |
| 1562 ret = regnode(MOPEN + parno); | |
| 1563 } | |
| 1564 else if (paren == REG_NPAREN) | |
| 1565 { | |
| 1566 /* Make a NOPEN node. */ | |
| 1567 ret = regnode(NOPEN); | |
| 1568 } | |
| 1569 else | |
| 1570 ret = NULL; | |
| 1571 | |
| 1572 /* Pick up the branches, linking them together. */ | |
| 1573 br = regbranch(&flags); | |
| 1574 if (br == NULL) | |
| 1575 return NULL; | |
| 1576 if (ret != NULL) | |
| 1577 regtail(ret, br); /* [MZ]OPEN -> first. */ | |
| 1578 else | |
| 1579 ret = br; | |
| 1580 /* If one of the branches can be zero-width, the whole thing can. | |
| 1581 * If one of the branches has * at start or matches a line-break, the | |
| 1582 * whole thing can. */ | |
| 1583 if (!(flags & HASWIDTH)) | |
| 1584 *flagp &= ~HASWIDTH; | |
| 1585 *flagp |= flags & (SPSTART | HASNL | HASLOOKBH); | |
| 1586 while (peekchr() == Magic('|')) | |
| 1587 { | |
| 1588 skipchr(); | |
| 1589 br = regbranch(&flags); | |
| 2010 | 1590 if (br == NULL || reg_toolong) |
| 7 | 1591 return NULL; |
| 1592 regtail(ret, br); /* BRANCH -> BRANCH. */ | |
| 1593 if (!(flags & HASWIDTH)) | |
| 1594 *flagp &= ~HASWIDTH; | |
| 1595 *flagp |= flags & (SPSTART | HASNL | HASLOOKBH); | |
| 1596 } | |
| 1597 | |
| 1598 /* Make a closing node, and hook it on the end. */ | |
| 1599 ender = regnode( | |
| 1600 #ifdef FEAT_SYN_HL | |
| 1601 paren == REG_ZPAREN ? ZCLOSE + parno : | |
| 1602 #endif | |
| 1603 paren == REG_PAREN ? MCLOSE + parno : | |
| 1604 paren == REG_NPAREN ? NCLOSE : END); | |
| 1605 regtail(ret, ender); | |
| 1606 | |
| 1607 /* Hook the tails of the branches to the closing node. */ | |
| 1608 for (br = ret; br != NULL; br = regnext(br)) | |
| 1609 regoptail(br, ender); | |
| 1610 | |
| 1611 /* Check for proper termination. */ | |
| 1612 if (paren != REG_NOPAREN && getchr() != Magic(')')) | |
| 1613 { | |
| 1614 #ifdef FEAT_SYN_HL | |
| 1615 if (paren == REG_ZPAREN) | |
| 308 | 1616 EMSG_RET_NULL(_("E52: Unmatched \\z(")); |
| 7 | 1617 else |
| 1618 #endif | |
| 1619 if (paren == REG_NPAREN) | |
| 4444 | 1620 EMSG2_RET_NULL(_(e_unmatchedpp), reg_magic == MAGIC_ALL); |
| 7 | 1621 else |
| 4444 | 1622 EMSG2_RET_NULL(_(e_unmatchedp), reg_magic == MAGIC_ALL); |
| 7 | 1623 } |
| 1624 else if (paren == REG_NOPAREN && peekchr() != NUL) | |
| 1625 { | |
| 1626 if (curchr == Magic(')')) | |
| 4444 | 1627 EMSG2_RET_NULL(_(e_unmatchedpar), reg_magic == MAGIC_ALL); |
| 7 | 1628 else |
| 308 | 1629 EMSG_RET_NULL(_(e_trailing)); /* "Can't happen". */ |
| 7 | 1630 /* NOTREACHED */ |
| 1631 } | |
| 1632 /* | |
| 1633 * Here we set the flag allowing back references to this set of | |
| 1634 * parentheses. | |
| 1635 */ | |
| 1636 if (paren == REG_PAREN) | |
| 1637 had_endbrace[parno] = TRUE; /* have seen the close paren */ | |
| 1638 return ret; | |
| 1639 } | |
| 1640 | |
| 1641 /* | |
| 4444 | 1642 * Parse one alternative of an | operator. |
| 7 | 1643 * Implements the & operator. |
| 1644 */ | |
| 1645 static char_u * | |
|
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1646 regbranch(int *flagp) |
| 7 | 1647 { |
| 1648 char_u *ret; | |
| 1649 char_u *chain = NULL; | |
| 1650 char_u *latest; | |
| 1651 int flags; | |
| 1652 | |
| 1653 *flagp = WORST | HASNL; /* Tentatively. */ | |
| 1654 | |
| 1655 ret = regnode(BRANCH); | |
| 1656 for (;;) | |
| 1657 { | |
| 1658 latest = regconcat(&flags); | |
| 1659 if (latest == NULL) | |
| 1660 return NULL; | |
| 1661 /* If one of the branches has width, the whole thing has. If one of | |
| 1662 * the branches anchors at start-of-line, the whole thing does. | |
| 1663 * If one of the branches uses look-behind, the whole thing does. */ | |
| 1664 *flagp |= flags & (HASWIDTH | SPSTART | HASLOOKBH); | |
| 1665 /* If one of the branches doesn't match a line-break, the whole thing | |
| 1666 * doesn't. */ | |
| 1667 *flagp &= ~HASNL | (flags & HASNL); | |
| 1668 if (chain != NULL) | |
| 1669 regtail(chain, latest); | |
| 1670 if (peekchr() != Magic('&')) | |
| 1671 break; | |
| 1672 skipchr(); | |
| 1673 regtail(latest, regnode(END)); /* operand ends */ | |
| 2010 | 1674 if (reg_toolong) |
| 1675 break; | |
| 7 | 1676 reginsert(MATCH, latest); |
| 1677 chain = latest; | |
| 1678 } | |
| 1679 | |
| 1680 return ret; | |
| 1681 } | |
| 1682 | |
| 1683 /* | |
| 4444 | 1684 * Parse one alternative of an | or & operator. |
| 7 | 1685 * Implements the concatenation operator. |
| 1686 */ | |
| 1687 static char_u * | |
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1688 regconcat(int *flagp) |
| 7 | 1689 { |
| 1690 char_u *first = NULL; | |
| 1691 char_u *chain = NULL; | |
| 1692 char_u *latest; | |
| 1693 int flags; | |
| 1694 int cont = TRUE; | |
| 1695 | |
| 1696 *flagp = WORST; /* Tentatively. */ | |
| 1697 | |
| 1698 while (cont) | |
| 1699 { | |
| 1700 switch (peekchr()) | |
| 1701 { | |
| 1702 case NUL: | |
| 1703 case Magic('|'): | |
| 1704 case Magic('&'): | |
| 1705 case Magic(')'): | |
| 1706 cont = FALSE; | |
| 1707 break; | |
| 1708 case Magic('Z'): | |
| 1709 #ifdef FEAT_MBYTE | |
| 1710 regflags |= RF_ICOMBINE; | |
| 1711 #endif | |
| 1712 skipchr_keepstart(); | |
| 1713 break; | |
| 1714 case Magic('c'): | |
| 1715 regflags |= RF_ICASE; | |
| 1716 skipchr_keepstart(); | |
| 1717 break; | |
| 1718 case Magic('C'): | |
| 1719 regflags |= RF_NOICASE; | |
| 1720 skipchr_keepstart(); | |
| 1721 break; | |
| 1722 case Magic('v'): | |
| 1723 reg_magic = MAGIC_ALL; | |
| 1724 skipchr_keepstart(); | |
| 1725 curchr = -1; | |
| 1726 break; | |
| 1727 case Magic('m'): | |
| 1728 reg_magic = MAGIC_ON; | |
| 1729 skipchr_keepstart(); | |
| 1730 curchr = -1; | |
| 1731 break; | |
| 1732 case Magic('M'): | |
| 1733 reg_magic = MAGIC_OFF; | |
| 1734 skipchr_keepstart(); | |
| 1735 curchr = -1; | |
| 1736 break; | |
| 1737 case Magic('V'): | |
| 1738 reg_magic = MAGIC_NONE; | |
| 1739 skipchr_keepstart(); | |
| 1740 curchr = -1; | |
| 1741 break; | |
| 1742 default: | |
| 1743 latest = regpiece(&flags); | |
| 2010 | 1744 if (latest == NULL || reg_toolong) |
| 7 | 1745 return NULL; |
| 1746 *flagp |= flags & (HASWIDTH | HASNL | HASLOOKBH); | |
| 1747 if (chain == NULL) /* First piece. */ | |
| 1748 *flagp |= flags & SPSTART; | |
| 1749 else | |
| 1750 regtail(chain, latest); | |
| 1751 chain = latest; | |
| 1752 if (first == NULL) | |
| 1753 first = latest; | |
| 1754 break; | |
| 1755 } | |
| 1756 } | |
| 1757 if (first == NULL) /* Loop ran zero times. */ | |
| 1758 first = regnode(NOTHING); | |
| 1759 return first; | |
| 1760 } | |
| 1761 | |
| 1762 /* | |
| 4444 | 1763 * Parse something followed by possible [*+=]. |
| 7 | 1764 * |
| 1765 * Note that the branching code sequences used for = and the general cases | |
| 1766 * of * and + are somewhat optimized: they use the same NOTHING node as | |
| 1767 * both the endmarker for their branch list and the body of the last branch. | |
| 1768 * It might seem that this node could be dispensed with entirely, but the | |
| 1769 * endmarker role is not redundant. | |
| 1770 */ | |
| 1771 static char_u * | |
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1772 regpiece(int *flagp) |
| 7 | 1773 { |
| 1774 char_u *ret; | |
| 1775 int op; | |
| 1776 char_u *next; | |
| 1777 int flags; | |
| 1778 long minval; | |
| 1779 long maxval; | |
| 1780 | |
| 1781 ret = regatom(&flags); | |
| 1782 if (ret == NULL) | |
| 1783 return NULL; | |
| 1784 | |
| 1785 op = peekchr(); | |
| 1786 if (re_multi_type(op) == NOT_MULTI) | |
| 1787 { | |
| 1788 *flagp = flags; | |
| 1789 return ret; | |
| 1790 } | |
| 1791 /* default flags */ | |
| 1792 *flagp = (WORST | SPSTART | (flags & (HASNL | HASLOOKBH))); | |
| 1793 | |
| 1794 skipchr(); | |
| 1795 switch (op) | |
| 1796 { | |
| 1797 case Magic('*'): | |
| 1798 if (flags & SIMPLE) | |
| 1799 reginsert(STAR, ret); | |
| 1800 else | |
| 1801 { | |
| 1802 /* Emit x* as (x&|), where & means "self". */ | |
| 1803 reginsert(BRANCH, ret); /* Either x */ | |
| 1804 regoptail(ret, regnode(BACK)); /* and loop */ | |
| 1805 regoptail(ret, ret); /* back */ | |
| 1806 regtail(ret, regnode(BRANCH)); /* or */ | |
| 1807 regtail(ret, regnode(NOTHING)); /* null. */ | |
| 1808 } | |
| 1809 break; | |
| 1810 | |
| 1811 case Magic('+'): | |
| 1812 if (flags & SIMPLE) | |
| 1813 reginsert(PLUS, ret); | |
| 1814 else | |
| 1815 { | |
| 1816 /* Emit x+ as x(&|), where & means "self". */ | |
| 1817 next = regnode(BRANCH); /* Either */ | |
| 1818 regtail(ret, next); | |
| 233 | 1819 regtail(regnode(BACK), ret); /* loop back */ |
| 7 | 1820 regtail(next, regnode(BRANCH)); /* or */ |
| 1821 regtail(ret, regnode(NOTHING)); /* null. */ | |
| 1822 } | |
| 1823 *flagp = (WORST | HASWIDTH | (flags & (HASNL | HASLOOKBH))); | |
| 1824 break; | |
| 1825 | |
| 1826 case Magic('@'): | |
| 1827 { | |
| 1828 int lop = END; | |
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1829 long nr; |
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1830 |
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1831 nr = getdecchrs(); |
| 7 | 1832 switch (no_Magic(getchr())) |
| 1833 { | |
| 1834 case '=': lop = MATCH; break; /* \@= */ | |
| 1835 case '!': lop = NOMATCH; break; /* \@! */ | |
| 1836 case '>': lop = SUBPAT; break; /* \@> */ | |
| 1837 case '<': switch (no_Magic(getchr())) | |
| 1838 { | |
| 1839 case '=': lop = BEHIND; break; /* \@<= */ | |
| 1840 case '!': lop = NOBEHIND; break; /* \@<! */ | |
| 1841 } | |
| 1842 } | |
| 1843 if (lop == END) | |
| 4444 | 1844 EMSG2_RET_NULL(_("E59: invalid character after %s@"), |
| 7 | 1845 reg_magic == MAGIC_ALL); |
| 1846 /* Look behind must match with behind_pos. */ | |
| 1847 if (lop == BEHIND || lop == NOBEHIND) | |
| 1848 { | |
| 1849 regtail(ret, regnode(BHPOS)); | |
| 1850 *flagp |= HASLOOKBH; | |
| 1851 } | |
| 1852 regtail(ret, regnode(END)); /* operand ends */ | |
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1853 if (lop == BEHIND || lop == NOBEHIND) |
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1854 { |
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1855 if (nr < 0) |
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1856 nr = 0; /* no limit is same as zero limit */ |
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1857 reginsert_nr(lop, nr, ret); |
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1858 } |
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1859 else |
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1860 reginsert(lop, ret); |
| 7 | 1861 break; |
| 1862 } | |
| 1863 | |
| 1864 case Magic('?'): | |
| 1865 case Magic('='): | |
| 1866 /* Emit x= as (x|) */ | |
| 1867 reginsert(BRANCH, ret); /* Either x */ | |
| 1868 regtail(ret, regnode(BRANCH)); /* or */ | |
| 1869 next = regnode(NOTHING); /* null. */ | |
| 1870 regtail(ret, next); | |
| 1871 regoptail(ret, next); | |
| 1872 break; | |
| 1873 | |
| 1874 case Magic('{'): | |
| 1875 if (!read_limits(&minval, &maxval)) | |
| 1876 return NULL; | |
| 1877 if (flags & SIMPLE) | |
| 1878 { | |
| 1879 reginsert(BRACE_SIMPLE, ret); | |
| 1880 reginsert_limits(BRACE_LIMITS, minval, maxval, ret); | |
| 1881 } | |
| 1882 else | |
| 1883 { | |
| 1884 if (num_complex_braces >= 10) | |
| 4444 | 1885 EMSG2_RET_NULL(_("E60: Too many complex %s{...}s"), |
| 7 | 1886 reg_magic == MAGIC_ALL); |
| 1887 reginsert(BRACE_COMPLEX + num_complex_braces, ret); | |
| 1888 regoptail(ret, regnode(BACK)); | |
| 1889 regoptail(ret, ret); | |
| 1890 reginsert_limits(BRACE_LIMITS, minval, maxval, ret); | |
| 1891 ++num_complex_braces; | |
| 1892 } | |
| 1893 if (minval > 0 && maxval > 0) | |
| 1894 *flagp = (HASWIDTH | (flags & (HASNL | HASLOOKBH))); | |
| 1895 break; | |
| 1896 } | |
| 1897 if (re_multi_type(peekchr()) != NOT_MULTI) | |
| 1898 { | |
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1899 // Can't have a multi follow a multi. |
| 7 | 1900 if (peekchr() == Magic('*')) |
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1901 EMSG2_RET_NULL(_("E61: Nested %s*"), reg_magic >= MAGIC_ON); |
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1902 EMSG3_RET_NULL(_("E62: Nested %s%c"), reg_magic == MAGIC_ALL, |
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1903 no_Magic(peekchr())); |
| 7 | 1904 } |
| 1905 | |
| 1906 return ret; | |
| 1907 } | |
| 1908 | |
| 4444 | 1909 /* When making changes to classchars also change nfa_classcodes. */ |
| 1910 static char_u *classchars = (char_u *)".iIkKfFpPsSdDxXoOwWhHaAlLuU"; | |
| 1911 static int classcodes[] = { | |
| 1912 ANY, IDENT, SIDENT, KWORD, SKWORD, | |
| 1913 FNAME, SFNAME, PRINT, SPRINT, | |
| 1914 WHITE, NWHITE, DIGIT, NDIGIT, | |
| 1915 HEX, NHEX, OCTAL, NOCTAL, | |
| 1916 WORD, NWORD, HEAD, NHEAD, | |
| 1917 ALPHA, NALPHA, LOWER, NLOWER, | |
| 1918 UPPER, NUPPER | |
| 1919 }; | |
| 1920 | |
| 7 | 1921 /* |
| 4444 | 1922 * Parse the lowest level. |
| 7 | 1923 * |
| 1924 * Optimization: gobbles an entire sequence of ordinary characters so that | |
| 1925 * it can turn them into a single node, which is smaller to store and | |
| 1926 * faster to run. Don't do this when one_exactly is set. | |
| 1927 */ | |
| 1928 static char_u * | |
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1929 regatom(int *flagp) |
| 7 | 1930 { |
| 1931 char_u *ret; | |
| 1932 int flags; | |
| 1933 int c; | |
| 1934 char_u *p; | |
| 1935 int extra = 0; | |
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1936 int save_prev_at_start = prev_at_start; |
| 7 | 1937 |
| 1938 *flagp = WORST; /* Tentatively. */ | |
| 1939 | |
| 1940 c = getchr(); | |
| 1941 switch (c) | |
| 1942 { | |
| 1943 case Magic('^'): | |
| 1944 ret = regnode(BOL); | |
| 1945 break; | |
| 1946 | |
| 1947 case Magic('$'): | |
| 1948 ret = regnode(EOL); | |
| 1949 #if defined(FEAT_SYN_HL) || defined(PROTO) | |
| 1950 had_eol = TRUE; | |
| 1951 #endif | |
| 1952 break; | |
| 1953 | |
| 1954 case Magic('<'): | |
| 1955 ret = regnode(BOW); | |
| 1956 break; | |
| 1957 | |
| 1958 case Magic('>'): | |
| 1959 ret = regnode(EOW); | |
| 1960 break; | |
| 1961 | |
| 1962 case Magic('_'): | |
| 1963 c = no_Magic(getchr()); | |
| 1964 if (c == '^') /* "\_^" is start-of-line */ | |
| 1965 { | |
| 1966 ret = regnode(BOL); | |
| 1967 break; | |
| 1968 } | |
| 1969 if (c == '$') /* "\_$" is end-of-line */ | |
| 1970 { | |
| 1971 ret = regnode(EOL); | |
| 1972 #if defined(FEAT_SYN_HL) || defined(PROTO) | |
| 1973 had_eol = TRUE; | |
| 1974 #endif | |
| 1975 break; | |
| 1976 } | |
| 1977 | |
| 1978 extra = ADD_NL; | |
| 1979 *flagp |= HASNL; | |
| 1980 | |
| 1981 /* "\_[" is character range plus newline */ | |
| 1982 if (c == '[') | |
| 1983 goto collection; | |
| 1984 | |
| 1985 /* "\_x" is character class plus newline */ | |
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1986 /* FALLTHROUGH */ |
| 7 | 1987 |
| 1988 /* | |
| 1989 * Character classes. | |
| 1990 */ | |
| 1991 case Magic('.'): | |
| 1992 case Magic('i'): | |
| 1993 case Magic('I'): | |
| 1994 case Magic('k'): | |
| 1995 case Magic('K'): | |
| 1996 case Magic('f'): | |
| 1997 case Magic('F'): | |
| 1998 case Magic('p'): | |
| 1999 case Magic('P'): | |
| 2000 case Magic('s'): | |
| 2001 case Magic('S'): | |
| 2002 case Magic('d'): | |
| 2003 case Magic('D'): | |
| 2004 case Magic('x'): | |
| 2005 case Magic('X'): | |
| 2006 case Magic('o'): | |
| 2007 case Magic('O'): | |
| 2008 case Magic('w'): | |
| 2009 case Magic('W'): | |
| 2010 case Magic('h'): | |
| 2011 case Magic('H'): | |
| 2012 case Magic('a'): | |
| 2013 case Magic('A'): | |
| 2014 case Magic('l'): | |
| 2015 case Magic('L'): | |
| 2016 case Magic('u'): | |
| 2017 case Magic('U'): | |
| 2018 p = vim_strchr(classchars, no_Magic(c)); | |
| 2019 if (p == NULL) | |
| 2020 EMSG_RET_NULL(_("E63: invalid use of \\_")); | |
| 714 | 2021 #ifdef FEAT_MBYTE |
| 2022 /* When '.' is followed by a composing char ignore the dot, so that | |
| 2023 * the composing char is matched here. */ | |
| 2024 if (enc_utf8 && c == Magic('.') && utf_iscomposing(peekchr())) | |
| 2025 { | |
| 2026 c = getchr(); | |
| 2027 goto do_multibyte; | |
| 2028 } | |
| 2029 #endif | |
| 7 | 2030 ret = regnode(classcodes[p - classchars] + extra); |
| 2031 *flagp |= HASWIDTH | SIMPLE; | |
| 2032 break; | |
| 2033 | |
| 2034 case Magic('n'): | |
| 2035 if (reg_string) | |
| 2036 { | |
| 2037 /* In a string "\n" matches a newline character. */ | |
| 2038 ret = regnode(EXACTLY); | |
| 2039 regc(NL); | |
| 2040 regc(NUL); | |
| 2041 *flagp |= HASWIDTH | SIMPLE; | |
| 2042 } | |
| 2043 else | |
| 2044 { | |
| 2045 /* In buffer text "\n" matches the end of a line. */ | |
| 2046 ret = regnode(NEWL); | |
| 2047 *flagp |= HASWIDTH | HASNL; | |
| 2048 } | |
| 2049 break; | |
| 2050 | |
| 2051 case Magic('('): | |
| 2052 if (one_exactly) | |
| 2053 EMSG_ONE_RET_NULL; | |
| 2054 ret = reg(REG_PAREN, &flags); | |
| 2055 if (ret == NULL) | |
| 2056 return NULL; | |
| 2057 *flagp |= flags & (HASWIDTH | SPSTART | HASNL | HASLOOKBH); | |
| 2058 break; | |
| 2059 | |
| 2060 case NUL: | |
| 2061 case Magic('|'): | |
| 2062 case Magic('&'): | |
| 2063 case Magic(')'): | |
| 1468 | 2064 if (one_exactly) |
| 2065 EMSG_ONE_RET_NULL; | |
|
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commit https://github.com/vim/vim/commit/95f096030ed1a8afea028f2ea295d6f6a70f466f
Christian Brabandt <cb@256bit.org>
parents:
10245
diff
changeset
|
2066 IEMSG_RET_NULL(_(e_internal)); /* Supposed to be caught earlier. */ |
| 7 | 2067 /* NOTREACHED */ |
| 2068 | |
| 2069 case Magic('='): | |
| 2070 case Magic('?'): | |
| 2071 case Magic('+'): | |
| 2072 case Magic('@'): | |
| 2073 case Magic('{'): | |
| 2074 case Magic('*'): | |
| 2075 c = no_Magic(c); | |
|
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patch 8.1.0748: using sprintf() instead of semsg()
Bram Moolenaar <Bram@vim.org>
parents:
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diff
changeset
|
2076 EMSG3_RET_NULL(_("E64: %s%c follows nothing"), |
|
bd12ace1bab2
patch 8.1.0748: using sprintf() instead of semsg()
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parents:
15470
diff
changeset
|
2077 (c == '*' ? reg_magic >= MAGIC_ON : reg_magic == MAGIC_ALL), c); |
| 7 | 2078 /* NOTREACHED */ |
| 2079 | |
| 2080 case Magic('~'): /* previous substitute pattern */ | |
| 359 | 2081 if (reg_prev_sub != NULL) |
| 7 | 2082 { |
| 2083 char_u *lp; | |
| 2084 | |
| 2085 ret = regnode(EXACTLY); | |
| 2086 lp = reg_prev_sub; | |
| 2087 while (*lp != NUL) | |
| 2088 regc(*lp++); | |
| 2089 regc(NUL); | |
| 2090 if (*reg_prev_sub != NUL) | |
| 2091 { | |
| 2092 *flagp |= HASWIDTH; | |
| 2093 if ((lp - reg_prev_sub) == 1) | |
| 2094 *flagp |= SIMPLE; | |
| 2095 } | |
| 2096 } | |
| 2097 else | |
| 2098 EMSG_RET_NULL(_(e_nopresub)); | |
| 2099 break; | |
| 2100 | |
| 2101 case Magic('1'): | |
| 2102 case Magic('2'): | |
| 2103 case Magic('3'): | |
| 2104 case Magic('4'): | |
| 2105 case Magic('5'): | |
| 2106 case Magic('6'): | |
| 2107 case Magic('7'): | |
| 2108 case Magic('8'): | |
| 2109 case Magic('9'): | |
| 2110 { | |
| 2111 int refnum; | |
| 2112 | |
| 2113 refnum = c - Magic('0'); | |
|
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14b6b79d685b
patch 8.0.0645: no error for illegal back reference in NFA engine
Christian Brabandt <cb@256bit.org>
parents:
11521
diff
changeset
|
2114 if (!seen_endbrace(refnum)) |
|
14b6b79d685b
patch 8.0.0645: no error for illegal back reference in NFA engine
Christian Brabandt <cb@256bit.org>
parents:
11521
diff
changeset
|
2115 return NULL; |
| 7 | 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 |
|
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Christian Brabandt <cb@256bit.org>
parents:
13286
diff
changeset
|
2126 case '(': if ((reg_do_extmatch & REX_SET) == 0) |
|
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parents:
4682
diff
changeset
|
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': | |
|
14161
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patch 8.1.0098: segfault when pattern with z() is very slow
Christian Brabandt <cb@256bit.org>
parents:
13286
diff
changeset
|
2145 case '9': if ((reg_do_extmatch & REX_USE) == 0) |
|
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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) | |
|
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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) | |
|
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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 { | |
|
12752
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patch 8.0.1254: undefined left shift in gethexchrs()
Christian Brabandt <cb@256bit.org>
parents:
12674
diff
changeset
|
2265 long i; |
| 24 | 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') | |
|
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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 */ | |
|
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Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
2425 if (endc == '\\' && !reg_cpo_lit && !reg_cpo_bsl) |
| 24 | 2426 endc = coll_get_char(); |
| 2427 | |
| 7 | 2428 if (startc > endc) |
|
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Christian Brabandt <cb@256bit.org>
parents:
11269
diff
changeset
|
2429 EMSG_RET_NULL(_(e_reverse_range)); |
| 7 | 2430 #ifdef FEAT_MBYTE |
| 2431 if (has_mbyte && ((*mb_char2len)(startc) > 1 | |
| 2432 || (*mb_char2len)(endc) > 1)) | |
| 2433 { | |
|
11480
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Christian Brabandt <cb@256bit.org>
parents:
11269
diff
changeset
|
2434 /* Limit to a range of 256 chars. */ |
| 7 | 2435 if (endc > startc + 256) |
|
11480
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patch 8.0.0623: error for invalid regexp is not very informative
Christian Brabandt <cb@256bit.org>
parents:
11269
diff
changeset
|
2436 EMSG_RET_NULL(_(e_large_class)); |
| 7 | 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 == '\\' | |
|
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parents:
4732
diff
changeset
|
2467 && !reg_cpo_bsl |
| 7 | 2468 && (vim_strchr(REGEXP_INRANGE, regparse[1]) != NULL |
|
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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: | |
|
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Christian Brabandt <cb@256bit.org>
parents:
8995
diff
changeset
|
2544 for (cu = 1; cu < 128; cu++) |
| 7 | 2545 if (isalnum(cu)) |
|
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parents:
8863
diff
changeset
|
2546 regmbc(cu); |
| 7 | 2547 break; |
| 2548 case CLASS_ALPHA: | |
|
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commit https://github.com/vim/vim/commit/e8aee7dcf9b12becff86e8ce1783a86801c5f9f6
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parents:
8995
diff
changeset
|
2549 for (cu = 1; cu < 128; cu++) |
| 7 | 2550 if (isalpha(cu)) |
|
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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: | |
|
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diff
changeset
|
2558 for (cu = 1; cu <= 127; cu++) |
| 7 | 2559 if (iscntrl(cu)) |
|
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parents:
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diff
changeset
|
2560 regmbc(cu); |
| 7 | 2561 break; |
| 2562 case CLASS_DIGIT: | |
|
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diff
changeset
|
2563 for (cu = 1; cu <= 127; cu++) |
| 7 | 2564 if (VIM_ISDIGIT(cu)) |
|
8995
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diff
changeset
|
2565 regmbc(cu); |
| 7 | 2566 break; |
| 2567 case CLASS_GRAPH: | |
|
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diff
changeset
|
2568 for (cu = 1; cu <= 127; cu++) |
| 7 | 2569 if (isgraph(cu)) |
|
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parents:
8863
diff
changeset
|
2570 regmbc(cu); |
| 7 | 2571 break; |
| 2572 case CLASS_LOWER: | |
| 2573 for (cu = 1; cu <= 255; cu++) | |
|
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diff
changeset
|
2574 if (MB_ISLOWER(cu) && cu != 170 |
|
42b228c8701b
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diff
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|
2575 && cu != 186) |
|
8995
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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
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diff
changeset
|
2581 regmbc(cu); |
| 7 | 2582 break; |
| 2583 case CLASS_PUNCT: | |
|
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parents:
8995
diff
changeset
|
2584 for (cu = 1; cu < 128; cu++) |
| 7 | 2585 if (ispunct(cu)) |
|
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3cf6704d6efc
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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)) |
|
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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)) | |
|
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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:
7807
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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parents:
7807
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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7807
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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7807
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
changeset
|
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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diff
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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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2853 reginsert_limits( |
|
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|
2854 int op, |
|
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|
2855 long minval, |
|
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|
2856 long maxval, |
|
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|
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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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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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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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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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) |
|
4679
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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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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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changeset
|
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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changeset
|
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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changeset
|
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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diff
changeset
|
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 */ | |
|
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3261 static long |
|
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|
3262 gethexchrs(int maxinputlen) |
| 24 | 3263 { |
|
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changeset
|
3264 long_u nr = 0; |
| 24 | 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; | |
|
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changeset
|
3280 return (long)nr; |
| 24 | 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 */ | |
|
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3287 static long |
|
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|
3288 getdecchrs(void) |
| 24 | 3289 { |
|
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|
3290 long_u nr = 0; |
| 24 | 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; | |
|
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|
3307 return (long)nr; |
| 24 | 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 */ |
|
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3318 static long |
|
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|
3319 getoctchrs(void) |
| 24 | 3320 { |
|
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changeset
|
3321 long_u nr = 0; |
| 24 | 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; | |
|
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changeset
|
3337 return (long)nr; |
| 24 | 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 { |
|
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changeset
|
3347 long nr = -1; |
| 24 | 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 != '}') |
|
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3402 EMSG2_RET_FAIL(_("E554: Syntax error in %s{...}"), |
|
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3403 reg_magic == MAGIC_ALL); |
| 7 | 3404 |
| 3405 /* | |
| 3406 * Reverse the range if there was a '-', or make sure it is in the right | |
| 3407 * order otherwise. | |
| 3408 */ | |
| 3409 if ((!reverse && *minval > *maxval) || (reverse && *minval < *maxval)) | |
| 3410 { | |
| 3411 tmp = *minval; | |
| 3412 *minval = *maxval; | |
| 3413 *maxval = tmp; | |
| 3414 } | |
| 3415 skipchr(); /* let's be friends with the lexer again */ | |
| 3416 return OK; | |
| 3417 } | |
| 3418 | |
| 3419 /* | |
| 3420 * vim_regexec and friends | |
| 3421 */ | |
| 3422 | |
| 3423 /* | |
| 3424 * Global work variables for vim_regexec(). | |
| 3425 */ | |
| 3426 | |
| 3427 /* | |
| 3428 * Structure used to save the current input state, when it needs to be | |
| 3429 * restored after trying a match. Used by reg_save() and reg_restore(). | |
| 233 | 3430 * Also stores the length of "backpos". |
| 7 | 3431 */ |
| 3432 typedef struct | |
| 3433 { | |
| 3434 union | |
| 3435 { | |
|
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3436 char_u *ptr; /* rex.input pointer, for single-line regexp */ |
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3437 lpos_T pos; /* rex.input pos, for multi-line regexp */ |
| 7 | 3438 } rs_u; |
| 233 | 3439 int rs_len; |
| 7 | 3440 } regsave_T; |
| 3441 | |
| 3442 /* struct to save start/end pointer/position in for \(\) */ | |
| 3443 typedef struct | |
| 3444 { | |
| 3445 union | |
| 3446 { | |
| 3447 char_u *ptr; | |
| 3448 lpos_T pos; | |
| 3449 } se_u; | |
| 3450 } save_se_T; | |
| 3451 | |
| 1579 | 3452 /* used for BEHIND and NOBEHIND matching */ |
| 3453 typedef struct regbehind_S | |
| 3454 { | |
| 3455 regsave_T save_after; | |
| 3456 regsave_T save_behind; | |
| 1602 | 3457 int save_need_clear_subexpr; |
| 1579 | 3458 save_se_T save_start[NSUBEXP]; |
| 3459 save_se_T save_end[NSUBEXP]; | |
| 3460 } regbehind_T; | |
| 3461 | |
|
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3462 static long bt_regexec_both(char_u *line, colnr_T col, proftime_T *tm, int *timed_out); |
|
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3463 static long regtry(bt_regprog_T *prog, colnr_T col, proftime_T *tm, int *timed_out); |
|
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3464 static void cleanup_subexpr(void); |
| 7 | 3465 #ifdef FEAT_SYN_HL |
|
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3466 static void cleanup_zsubexpr(void); |
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3467 #endif |
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|
3468 static void save_subexpr(regbehind_T *bp); |
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3469 static void restore_subexpr(regbehind_T *bp); |
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3470 static void reg_nextline(void); |
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3471 static void reg_save(regsave_T *save, garray_T *gap); |
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3472 static void reg_restore(regsave_T *save, garray_T *gap); |
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|
3473 static int reg_save_equal(regsave_T *save); |
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|
3474 static void save_se_multi(save_se_T *savep, lpos_T *posp); |
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|
3475 static void save_se_one(save_se_T *savep, char_u **pp); |
| 7 | 3476 |
| 3477 /* Save the sub-expressions before attempting a match. */ | |
| 3478 #define save_se(savep, posp, pp) \ | |
| 3479 REG_MULTI ? save_se_multi((savep), (posp)) : save_se_one((savep), (pp)) | |
| 3480 | |
| 3481 /* After a failed match restore the sub-expressions. */ | |
| 3482 #define restore_se(savep, posp, pp) { \ | |
| 3483 if (REG_MULTI) \ | |
| 3484 *(posp) = (savep)->se_u.pos; \ | |
| 3485 else \ | |
| 3486 *(pp) = (savep)->se_u.ptr; } | |
| 3487 | |
|
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|
3488 static int re_num_cmp(long_u val, char_u *scan); |
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|
3489 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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3490 static int regmatch(char_u *prog, proftime_T *tm, int *timed_out); |
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|
3491 static int regrepeat(char_u *p, long maxcount); |
| 7 | 3492 |
| 3493 #ifdef DEBUG | |
| 3494 int regnarrate = 0; | |
| 3495 #endif | |
| 3496 | |
| 3497 /* | |
| 3498 * Sometimes need to save a copy of a line. Since alloc()/free() is very | |
| 3499 * slow, we keep one allocated piece of memory and only re-allocate it when | |
| 4444 | 3500 * it's too small. It's freed in bt_regexec_both() when finished. |
| 7 | 3501 */ |
| 1468 | 3502 static char_u *reg_tofree = NULL; |
| 7 | 3503 static unsigned reg_tofreelen; |
| 3504 | |
| 3505 /* | |
|
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3506 * Structure used to store the execution state of the regex engine. |
| 1209 | 3507 * Which ones are set depends on whether a single-line or multi-line match is |
| 7 | 3508 * done: |
| 3509 * single-line multi-line | |
| 3510 * reg_match ®match_T NULL | |
| 3511 * reg_mmatch NULL ®mmatch_T | |
| 3512 * reg_startp reg_match->startp <invalid> | |
| 3513 * reg_endp reg_match->endp <invalid> | |
| 3514 * reg_startpos <invalid> reg_mmatch->startpos | |
| 3515 * reg_endpos <invalid> reg_mmatch->endpos | |
| 3516 * reg_win NULL window in which to search | |
| 4061 | 3517 * reg_buf curbuf buffer in which to search |
| 7 | 3518 * reg_firstlnum <invalid> first line in which to search |
| 3519 * reg_maxline 0 last line nr | |
| 3520 * reg_line_lbr FALSE or TRUE FALSE | |
| 3521 */ | |
|
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3522 typedef struct { |
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3523 regmatch_T *reg_match; |
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3524 regmmatch_T *reg_mmatch; |
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3525 char_u **reg_startp; |
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3526 char_u **reg_endp; |
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3527 lpos_T *reg_startpos; |
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3528 lpos_T *reg_endpos; |
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|
3529 win_T *reg_win; |
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3530 buf_T *reg_buf; |
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3531 linenr_T reg_firstlnum; |
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3532 linenr_T reg_maxline; |
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3533 int reg_line_lbr; /* "\n" in string is line break */ |
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3534 |
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3535 // The current match-position is stord in these variables: |
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3536 linenr_T lnum; // line number, relative to first line |
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3537 char_u *line; // start of current line |
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3538 char_u *input; // current input, points into "regline" |
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3539 |
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3540 int need_clear_subexpr; // subexpressions still need to be cleared |
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3541 #ifdef FEAT_SYN_HL |
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3542 int need_clear_zsubexpr; // extmatch subexpressions still need to be |
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3543 // cleared |
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3544 #endif |
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3545 |
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3546 /* Internal copy of 'ignorecase'. It is set at each call to vim_regexec(). |
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3547 * Normally it gets the value of "rm_ic" or "rmm_ic", but when the pattern |
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3548 * contains '\c' or '\C' the value is overruled. */ |
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3549 int reg_ic; |
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3550 |
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3551 #ifdef FEAT_MBYTE |
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3552 /* Similar to "reg_ic", but only for 'combining' characters. Set with \Z |
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3553 * flag in the regexp. Defaults to false, always. */ |
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3554 int reg_icombine; |
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3555 #endif |
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3556 |
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3557 /* Copy of "rmm_maxcol": maximum column to search for a match. Zero when |
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3558 * there is no maximum. */ |
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3559 colnr_T reg_maxcol; |
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3560 |
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3561 // State for the NFA engine regexec. |
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3562 int nfa_has_zend; // NFA regexp \ze operator encountered. |
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3563 int nfa_has_backref; // NFA regexp \1 .. \9 encountered. |
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3564 int nfa_nsubexpr; // Number of sub expressions actually being used |
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3565 // during execution. 1 if only the whole match |
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3566 // (subexpr 0) is used. |
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3567 // listid is global, so that it increases on recursive calls to |
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3568 // nfa_regmatch(), which means we don't have to clear the lastlist field of |
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3569 // all the states. |
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3570 int nfa_listid; |
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3571 int nfa_alt_listid; |
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3572 |
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3573 #ifdef FEAT_SYN_HL |
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3574 int nfa_has_zsubexpr; // NFA regexp has \z( ), set zsubexpr. |
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3575 #endif |
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3576 } regexec_T; |
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3577 |
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3578 static regexec_T rex; |
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3579 static int rex_in_use = FALSE; |
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3580 |
| 7 | 3581 |
| 270 | 3582 /* Values for rs_state in regitem_T. */ |
| 3583 typedef enum regstate_E | |
| 3584 { | |
| 3585 RS_NOPEN = 0 /* NOPEN and NCLOSE */ | |
| 3586 , RS_MOPEN /* MOPEN + [0-9] */ | |
| 3587 , RS_MCLOSE /* MCLOSE + [0-9] */ | |
| 3588 #ifdef FEAT_SYN_HL | |
| 3589 , RS_ZOPEN /* ZOPEN + [0-9] */ | |
| 3590 , RS_ZCLOSE /* ZCLOSE + [0-9] */ | |
| 3591 #endif | |
| 3592 , RS_BRANCH /* BRANCH */ | |
| 3593 , RS_BRCPLX_MORE /* BRACE_COMPLEX and trying one more match */ | |
| 3594 , RS_BRCPLX_LONG /* BRACE_COMPLEX and trying longest match */ | |
| 3595 , RS_BRCPLX_SHORT /* BRACE_COMPLEX and trying shortest match */ | |
| 3596 , RS_NOMATCH /* NOMATCH */ | |
| 3597 , RS_BEHIND1 /* BEHIND / NOBEHIND matching rest */ | |
| 3598 , RS_BEHIND2 /* BEHIND / NOBEHIND matching behind part */ | |
| 3599 , RS_STAR_LONG /* STAR/PLUS/BRACE_SIMPLE longest match */ | |
| 3600 , RS_STAR_SHORT /* STAR/PLUS/BRACE_SIMPLE shortest match */ | |
| 3601 } regstate_T; | |
| 3602 | |
| 3603 /* | |
| 3604 * When there are alternatives a regstate_T is put on the regstack to remember | |
| 3605 * what we are doing. | |
| 3606 * Before it may be another type of item, depending on rs_state, to remember | |
| 3607 * more things. | |
| 3608 */ | |
| 3609 typedef struct regitem_S | |
| 3610 { | |
| 3611 regstate_T rs_state; /* what we are doing, one of RS_ above */ | |
| 3612 char_u *rs_scan; /* current node in program */ | |
| 3613 union | |
| 3614 { | |
| 3615 save_se_T sesave; | |
| 3616 regsave_T regsave; | |
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3617 } rs_un; /* room for saving rex.input */ |
| 1579 | 3618 short rs_no; /* submatch nr or BEHIND/NOBEHIND */ |
| 270 | 3619 } regitem_T; |
| 3620 | |
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3621 static regitem_T *regstack_push(regstate_T state, char_u *scan); |
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3622 static void regstack_pop(char_u **scan); |
| 270 | 3623 |
| 3624 /* used for STAR, PLUS and BRACE_SIMPLE matching */ | |
| 3625 typedef struct regstar_S | |
| 3626 { | |
| 3627 int nextb; /* next byte */ | |
| 3628 int nextb_ic; /* next byte reverse case */ | |
| 3629 long count; | |
| 3630 long minval; | |
| 3631 long maxval; | |
| 3632 } regstar_T; | |
| 3633 | |
| 3634 /* used to store input position when a BACK was encountered, so that we now if | |
| 3635 * we made any progress since the last time. */ | |
| 3636 typedef struct backpos_S | |
| 3637 { | |
| 3638 char_u *bp_scan; /* "scan" where BACK was encountered */ | |
| 3639 regsave_T bp_pos; /* last input position */ | |
| 3640 } backpos_T; | |
| 3641 | |
| 3642 /* | |
| 1520 | 3643 * "regstack" and "backpos" are used by regmatch(). They are kept over calls |
| 3644 * to avoid invoking malloc() and free() often. | |
| 3645 * "regstack" is a stack with regitem_T items, sometimes preceded by regstar_T | |
| 3646 * or regbehind_T. | |
| 3647 * "backpos_T" is a table with backpos_T for BACK | |
| 270 | 3648 */ |
| 1520 | 3649 static garray_T regstack = {0, 0, 0, 0, NULL}; |
| 3650 static garray_T backpos = {0, 0, 0, 0, NULL}; | |
| 3651 | |
| 3652 /* | |
| 3653 * Both for regstack and backpos tables we use the following strategy of | |
| 3654 * allocation (to reduce malloc/free calls): | |
| 3655 * - Initial size is fairly small. | |
| 3656 * - When needed, the tables are grown bigger (8 times at first, double after | |
| 3657 * that). | |
| 3658 * - After executing the match we free the memory only if the array has grown. | |
| 3659 * Thus the memory is kept allocated when it's at the initial size. | |
| 3660 * This makes it fast while not keeping a lot of memory allocated. | |
| 3661 * A three times speed increase was observed when using many simple patterns. | |
| 3662 */ | |
| 3663 #define REGSTACK_INITIAL 2048 | |
| 3664 #define BACKPOS_INITIAL 64 | |
| 3665 | |
| 3666 #if defined(EXITFREE) || defined(PROTO) | |
| 3667 void | |
|
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3668 free_regexp_stuff(void) |
| 1520 | 3669 { |
| 3670 ga_clear(®stack); | |
| 3671 ga_clear(&backpos); | |
| 3672 vim_free(reg_tofree); | |
| 3673 vim_free(reg_prev_sub); | |
| 3674 } | |
| 3675 #endif | |
| 270 | 3676 |
| 7 | 3677 /* |
| 3678 * Get pointer to the line "lnum", which is relative to "reg_firstlnum". | |
| 3679 */ | |
| 3680 static char_u * | |
|
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3681 reg_getline(linenr_T lnum) |
| 7 | 3682 { |
| 3683 /* when looking behind for a match/no-match lnum is negative. But we | |
| 3684 * can't go before line 1 */ | |
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3685 if (rex.reg_firstlnum + lnum < 1) |
| 7 | 3686 return NULL; |
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3687 if (lnum > rex.reg_maxline) |
| 481 | 3688 /* Must have matched the "\n" in the last line. */ |
| 3689 return (char_u *)""; | |
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3690 return ml_get_buf(rex.reg_buf, rex.reg_firstlnum + lnum, FALSE); |
| 7 | 3691 } |
| 3692 | |
| 3693 static regsave_T behind_pos; | |
| 3694 | |
| 3695 #ifdef FEAT_SYN_HL | |
| 3696 static char_u *reg_startzp[NSUBEXP]; /* Workspace to mark beginning */ | |
| 3697 static char_u *reg_endzp[NSUBEXP]; /* and end of \z(...\) matches */ | |
| 3698 static lpos_T reg_startzpos[NSUBEXP]; /* idem, beginning pos */ | |
| 3699 static lpos_T reg_endzpos[NSUBEXP]; /* idem, end pos */ | |
| 3700 #endif | |
| 3701 | |
| 3702 /* TRUE if using multi-line regexp. */ | |
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3703 #define REG_MULTI (rex.reg_match == NULL) |
| 4444 | 3704 |
| 7 | 3705 /* |
| 3706 * Match a regexp against a string. | |
| 3707 * "rmp->regprog" is a compiled regexp as returned by vim_regcomp(). | |
| 3708 * Uses curbuf for line count and 'iskeyword'. | |
| 5838 | 3709 * if "line_lbr" is TRUE consider a "\n" in "line" to be a line break. |
| 7 | 3710 * |
| 6390 | 3711 * Returns 0 for failure, number of lines contained in the match otherwise. |
| 7 | 3712 */ |
| 4444 | 3713 static int |
|
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3714 bt_regexec_nl( |
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3715 regmatch_T *rmp, |
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3716 char_u *line, /* string to match against */ |
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3717 colnr_T col, /* column to start looking for match */ |
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3718 int line_lbr) |
| 7 | 3719 { |
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3720 rex.reg_match = rmp; |
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3721 rex.reg_mmatch = NULL; |
|
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commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
3722 rex.reg_maxline = 0; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
3723 rex.reg_line_lbr = line_lbr; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
3724 rex.reg_buf = curbuf; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
3725 rex.reg_win = NULL; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
3726 rex.reg_ic = rmp->rm_ic; |
| 7 | 3727 #ifdef FEAT_MBYTE |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
3728 rex.reg_icombine = FALSE; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
3729 #endif |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
3730 rex.reg_maxcol = 0; |
| 6390 | 3731 |
|
11521
578df034735d
patch 8.0.0643: when a pattern search is slow Vim becomes unusable
Christian Brabandt <cb@256bit.org>
parents:
11482
diff
changeset
|
3732 return bt_regexec_both(line, col, NULL, NULL); |
| 7 | 3733 } |
| 3734 | |
| 3735 /* | |
| 3736 * Match a regexp against multiple lines. | |
| 3737 * "rmp->regprog" is a compiled regexp as returned by vim_regcomp(). | |
| 3738 * Uses curbuf for line count and 'iskeyword'. | |
| 3739 * | |
| 3740 * Return zero if there is no match. Return number of lines contained in the | |
| 3741 * match otherwise. | |
| 3742 */ | |
| 4444 | 3743 static long |
|
7833
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
3744 bt_regexec_multi( |
|
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
3745 regmmatch_T *rmp, |
|
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
3746 win_T *win, /* window in which to search or NULL */ |
|
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
3747 buf_T *buf, /* buffer in which to search */ |
|
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
3748 linenr_T lnum, /* nr of line to start looking for match */ |
|
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
3749 colnr_T col, /* column to start looking for match */ |
|
11521
578df034735d
patch 8.0.0643: when a pattern search is slow Vim becomes unusable
Christian Brabandt <cb@256bit.org>
parents:
11482
diff
changeset
|
3750 proftime_T *tm, /* timeout limit or NULL */ |
|
578df034735d
patch 8.0.0643: when a pattern search is slow Vim becomes unusable
Christian Brabandt <cb@256bit.org>
parents:
11482
diff
changeset
|
3751 int *timed_out) /* flag set on timeout or NULL */ |
| 7 | 3752 { |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
3753 rex.reg_match = NULL; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
3754 rex.reg_mmatch = rmp; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
3755 rex.reg_buf = buf; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
3756 rex.reg_win = win; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
3757 rex.reg_firstlnum = lnum; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
3758 rex.reg_maxline = rex.reg_buf->b_ml.ml_line_count - lnum; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
3759 rex.reg_line_lbr = FALSE; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
3760 rex.reg_ic = rmp->rmm_ic; |
| 7 | 3761 #ifdef FEAT_MBYTE |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
3762 rex.reg_icombine = FALSE; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
3763 #endif |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
3764 rex.reg_maxcol = rmp->rmm_maxcol; |
| 7 | 3765 |
|
11521
578df034735d
patch 8.0.0643: when a pattern search is slow Vim becomes unusable
Christian Brabandt <cb@256bit.org>
parents:
11482
diff
changeset
|
3766 return bt_regexec_both(NULL, col, tm, timed_out); |
| 7 | 3767 } |
| 3768 | |
| 3769 /* | |
| 3770 * Match a regexp against a string ("line" points to the string) or multiple | |
| 3771 * lines ("line" is NULL, use reg_getline()). | |
| 6390 | 3772 * Returns 0 for failure, number of lines contained in the match otherwise. |
| 7 | 3773 */ |
| 3774 static long | |
|
7833
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
3775 bt_regexec_both( |
|
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
3776 char_u *line, |
|
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
3777 colnr_T col, /* column to start looking for match */ |
|
11527
ac20f71e8aa4
patch 8.0.0646: the hlsearch test fails on fast systems
Christian Brabandt <cb@256bit.org>
parents:
11525
diff
changeset
|
3778 proftime_T *tm, /* timeout limit or NULL */ |
|
ac20f71e8aa4
patch 8.0.0646: the hlsearch test fails on fast systems
Christian Brabandt <cb@256bit.org>
parents:
11525
diff
changeset
|
3779 int *timed_out) /* flag set on timeout or NULL */ |
| 7 | 3780 { |
| 6390 | 3781 bt_regprog_T *prog; |
| 3782 char_u *s; | |
| 3783 long retval = 0L; | |
| 7 | 3784 |
| 1520 | 3785 /* Create "regstack" and "backpos" if they are not allocated yet. |
| 3786 * We allocate *_INITIAL amount of bytes first and then set the grow size | |
| 3787 * to much bigger value to avoid many malloc calls in case of deep regular | |
| 3788 * expressions. */ | |
| 3789 if (regstack.ga_data == NULL) | |
| 3790 { | |
| 3791 /* Use an item size of 1 byte, since we push different things | |
| 3792 * onto the regstack. */ | |
| 3793 ga_init2(®stack, 1, REGSTACK_INITIAL); | |
| 7009 | 3794 (void)ga_grow(®stack, REGSTACK_INITIAL); |
| 1520 | 3795 regstack.ga_growsize = REGSTACK_INITIAL * 8; |
| 3796 } | |
| 3797 | |
| 3798 if (backpos.ga_data == NULL) | |
| 3799 { | |
| 3800 ga_init2(&backpos, sizeof(backpos_T), BACKPOS_INITIAL); | |
| 7009 | 3801 (void)ga_grow(&backpos, BACKPOS_INITIAL); |
| 1520 | 3802 backpos.ga_growsize = BACKPOS_INITIAL * 8; |
| 3803 } | |
| 270 | 3804 |
| 7 | 3805 if (REG_MULTI) |
| 3806 { | |
|
10245
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commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
3807 prog = (bt_regprog_T *)rex.reg_mmatch->regprog; |
| 7 | 3808 line = reg_getline((linenr_T)0); |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
3809 rex.reg_startpos = rex.reg_mmatch->startpos; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
3810 rex.reg_endpos = rex.reg_mmatch->endpos; |
| 7 | 3811 } |
| 3812 else | |
| 3813 { | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
3814 prog = (bt_regprog_T *)rex.reg_match->regprog; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
3815 rex.reg_startp = rex.reg_match->startp; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
3816 rex.reg_endp = rex.reg_match->endp; |
| 7 | 3817 } |
| 3818 | |
| 3819 /* Be paranoid... */ | |
| 3820 if (prog == NULL || line == NULL) | |
| 3821 { | |
|
15470
55ccc2d353bd
patch 8.1.0743: giving error messages is not flexible
Bram Moolenaar <Bram@vim.org>
parents:
15339
diff
changeset
|
3822 emsg(_(e_null)); |
| 7 | 3823 goto theend; |
| 3824 } | |
| 3825 | |
| 3826 /* Check validity of program. */ | |
| 3827 if (prog_magic_wrong()) | |
| 3828 goto theend; | |
| 3829 | |
| 410 | 3830 /* If the start column is past the maximum column: no need to try. */ |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
3831 if (rex.reg_maxcol > 0 && col >= rex.reg_maxcol) |
| 410 | 3832 goto theend; |
| 3833 | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
3834 /* If pattern contains "\c" or "\C": overrule value of rex.reg_ic */ |
| 7 | 3835 if (prog->regflags & RF_ICASE) |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
3836 rex.reg_ic = TRUE; |
| 7 | 3837 else if (prog->regflags & RF_NOICASE) |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
3838 rex.reg_ic = FALSE; |
| 7 | 3839 |
| 3840 #ifdef FEAT_MBYTE | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
3841 /* If pattern contains "\Z" overrule value of rex.reg_icombine */ |
| 7 | 3842 if (prog->regflags & RF_ICOMBINE) |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
3843 rex.reg_icombine = TRUE; |
| 7 | 3844 #endif |
| 3845 | |
| 3846 /* If there is a "must appear" string, look for it. */ | |
| 3847 if (prog->regmust != NULL) | |
| 3848 { | |
| 3849 int c; | |
| 3850 | |
| 3851 #ifdef FEAT_MBYTE | |
| 3852 if (has_mbyte) | |
| 3853 c = (*mb_ptr2char)(prog->regmust); | |
| 3854 else | |
| 3855 #endif | |
| 3856 c = *prog->regmust; | |
| 3857 s = line + col; | |
| 170 | 3858 |
| 3859 /* | |
| 3860 * This is used very often, esp. for ":global". Use three versions of | |
| 3861 * the loop to avoid overhead of conditions. | |
| 3862 */ | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
3863 if (!rex.reg_ic |
| 170 | 3864 #ifdef FEAT_MBYTE |
| 3865 && !has_mbyte | |
| 3866 #endif | |
| 3867 ) | |
| 3868 while ((s = vim_strbyte(s, c)) != NULL) | |
| 3869 { | |
| 3870 if (cstrncmp(s, prog->regmust, &prog->regmlen) == 0) | |
| 3871 break; /* Found it. */ | |
| 3872 ++s; | |
| 3873 } | |
| 3874 #ifdef FEAT_MBYTE | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
3875 else if (!rex.reg_ic || (!enc_utf8 && mb_char2len(c) > 1)) |
| 170 | 3876 while ((s = vim_strchr(s, c)) != NULL) |
| 3877 { | |
| 3878 if (cstrncmp(s, prog->regmust, &prog->regmlen) == 0) | |
| 3879 break; /* Found it. */ | |
|
11127
506f5d8b7d8b
patch 8.0.0451: some macros are in lower case
Christian Brabandt <cb@256bit.org>
parents:
11121
diff
changeset
|
3880 MB_PTR_ADV(s); |
| 170 | 3881 } |
| 3882 #endif | |
| 3883 else | |
| 3884 while ((s = cstrchr(s, c)) != NULL) | |
| 3885 { | |
| 3886 if (cstrncmp(s, prog->regmust, &prog->regmlen) == 0) | |
| 3887 break; /* Found it. */ | |
|
11127
506f5d8b7d8b
patch 8.0.0451: some macros are in lower case
Christian Brabandt <cb@256bit.org>
parents:
11121
diff
changeset
|
3888 MB_PTR_ADV(s); |
| 170 | 3889 } |
| 7 | 3890 if (s == NULL) /* Not present. */ |
| 3891 goto theend; | |
| 3892 } | |
| 3893 | |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
3894 rex.line = line; |
|
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
3895 rex.lnum = 0; |
| 2578 | 3896 reg_toolong = FALSE; |
| 7 | 3897 |
| 3898 /* Simplest case: Anchored match need be tried only once. */ | |
| 3899 if (prog->reganch) | |
| 3900 { | |
| 3901 int c; | |
| 3902 | |
| 3903 #ifdef FEAT_MBYTE | |
| 3904 if (has_mbyte) | |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
3905 c = (*mb_ptr2char)(rex.line + col); |
| 7 | 3906 else |
| 3907 #endif | |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
3908 c = rex.line[col]; |
| 7 | 3909 if (prog->regstart == NUL |
| 3910 || prog->regstart == c | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
3911 || (rex.reg_ic && (( |
| 7 | 3912 #ifdef FEAT_MBYTE |
| 3913 (enc_utf8 && utf_fold(prog->regstart) == utf_fold(c))) | |
| 3914 || (c < 255 && prog->regstart < 255 && | |
| 3915 #endif | |
| 1347 | 3916 MB_TOLOWER(prog->regstart) == MB_TOLOWER(c))))) |
|
11527
ac20f71e8aa4
patch 8.0.0646: the hlsearch test fails on fast systems
Christian Brabandt <cb@256bit.org>
parents:
11525
diff
changeset
|
3917 retval = regtry(prog, col, tm, timed_out); |
| 7 | 3918 else |
| 3919 retval = 0; | |
| 3920 } | |
| 3921 else | |
| 3922 { | |
| 1521 | 3923 #ifdef FEAT_RELTIME |
| 3924 int tm_count = 0; | |
| 3925 #endif | |
| 7 | 3926 /* Messy cases: unanchored match. */ |
| 180 | 3927 while (!got_int) |
| 7 | 3928 { |
| 3929 if (prog->regstart != NUL) | |
| 3930 { | |
| 170 | 3931 /* Skip until the char we know it must start with. |
| 3932 * Used often, do some work to avoid call overhead. */ | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
3933 if (!rex.reg_ic |
| 170 | 3934 #ifdef FEAT_MBYTE |
| 3935 && !has_mbyte | |
| 3936 #endif | |
| 3937 ) | |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
3938 s = vim_strbyte(rex.line + col, prog->regstart); |
| 170 | 3939 else |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
3940 s = cstrchr(rex.line + col, prog->regstart); |
| 7 | 3941 if (s == NULL) |
| 3942 { | |
| 3943 retval = 0; | |
| 3944 break; | |
| 3945 } | |
|
14354
ffd834f893aa
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Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
3946 col = (int)(s - rex.line); |
| 7 | 3947 } |
| 3948 | |
| 410 | 3949 /* Check for maximum column to try. */ |
|
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commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
3950 if (rex.reg_maxcol > 0 && col >= rex.reg_maxcol) |
| 410 | 3951 { |
| 3952 retval = 0; | |
| 3953 break; | |
| 3954 } | |
| 3955 | |
|
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patch 8.0.0646: the hlsearch test fails on fast systems
Christian Brabandt <cb@256bit.org>
parents:
11525
diff
changeset
|
3956 retval = regtry(prog, col, tm, timed_out); |
| 7 | 3957 if (retval > 0) |
| 3958 break; | |
| 3959 | |
| 3960 /* if not currently on the first line, get it again */ | |
|
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patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
3961 if (rex.lnum != 0) |
| 7 | 3962 { |
|
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patch 8.1.0192: executing regexp recursively fails with a crash
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parents:
14169
diff
changeset
|
3963 rex.lnum = 0; |
|
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patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
3964 rex.line = reg_getline((linenr_T)0); |
| 7 | 3965 } |
|
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parents:
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diff
changeset
|
3966 if (rex.line[col] == NUL) |
| 7 | 3967 break; |
| 3968 #ifdef FEAT_MBYTE | |
| 3969 if (has_mbyte) | |
|
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patch 8.1.0192: executing regexp recursively fails with a crash
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parents:
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diff
changeset
|
3970 col += (*mb_ptr2len)(rex.line + col); |
| 7 | 3971 else |
| 3972 #endif | |
| 3973 ++col; | |
| 1521 | 3974 #ifdef FEAT_RELTIME |
| 3975 /* Check for timeout once in a twenty times to avoid overhead. */ | |
| 3976 if (tm != NULL && ++tm_count == 20) | |
| 3977 { | |
| 3978 tm_count = 0; | |
| 3979 if (profile_passed_limit(tm)) | |
|
11521
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patch 8.0.0643: when a pattern search is slow Vim becomes unusable
Christian Brabandt <cb@256bit.org>
parents:
11482
diff
changeset
|
3980 { |
|
578df034735d
patch 8.0.0643: when a pattern search is slow Vim becomes unusable
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parents:
11482
diff
changeset
|
3981 if (timed_out != NULL) |
|
578df034735d
patch 8.0.0643: when a pattern search is slow Vim becomes unusable
Christian Brabandt <cb@256bit.org>
parents:
11482
diff
changeset
|
3982 *timed_out = TRUE; |
| 1521 | 3983 break; |
|
11521
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patch 8.0.0643: when a pattern search is slow Vim becomes unusable
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parents:
11482
diff
changeset
|
3984 } |
| 1521 | 3985 } |
| 3986 #endif | |
| 7 | 3987 } |
| 3988 } | |
| 3989 | |
| 3990 theend: | |
| 1520 | 3991 /* Free "reg_tofree" when it's a bit big. |
| 3992 * Free regstack and backpos if they are bigger than their initial size. */ | |
| 3993 if (reg_tofreelen > 400) | |
|
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patch 8.0.1496: clearing a pointer takes two lines
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parents:
12752
diff
changeset
|
3994 VIM_CLEAR(reg_tofree); |
| 1520 | 3995 if (regstack.ga_maxlen > REGSTACK_INITIAL) |
| 3996 ga_clear(®stack); | |
| 3997 if (backpos.ga_maxlen > BACKPOS_INITIAL) | |
| 3998 ga_clear(&backpos); | |
| 270 | 3999 |
| 7 | 4000 return retval; |
| 4001 } | |
| 4002 | |
| 4003 #ifdef FEAT_SYN_HL | |
| 4004 /* | |
| 4005 * Create a new extmatch and mark it as referenced once. | |
| 4006 */ | |
| 4007 static reg_extmatch_T * | |
|
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parents:
7807
diff
changeset
|
4008 make_extmatch(void) |
| 7 | 4009 { |
| 4010 reg_extmatch_T *em; | |
| 4011 | |
| 4012 em = (reg_extmatch_T *)alloc_clear((unsigned)sizeof(reg_extmatch_T)); | |
| 4013 if (em != NULL) | |
| 4014 em->refcnt = 1; | |
| 4015 return em; | |
| 4016 } | |
| 4017 | |
| 4018 /* | |
| 4019 * Add a reference to an extmatch. | |
| 4020 */ | |
| 4021 reg_extmatch_T * | |
|
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parents:
7807
diff
changeset
|
4022 ref_extmatch(reg_extmatch_T *em) |
| 7 | 4023 { |
| 4024 if (em != NULL) | |
| 4025 em->refcnt++; | |
| 4026 return em; | |
| 4027 } | |
| 4028 | |
| 4029 /* | |
| 4030 * Remove a reference to an extmatch. If there are no references left, free | |
| 4031 * the info. | |
| 4032 */ | |
| 4033 void | |
|
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7807
diff
changeset
|
4034 unref_extmatch(reg_extmatch_T *em) |
| 7 | 4035 { |
| 4036 int i; | |
| 4037 | |
| 4038 if (em != NULL && --em->refcnt <= 0) | |
| 4039 { | |
| 4040 for (i = 0; i < NSUBEXP; ++i) | |
| 4041 vim_free(em->matches[i]); | |
| 4042 vim_free(em); | |
| 4043 } | |
| 4044 } | |
| 4045 #endif | |
| 4046 | |
| 4047 /* | |
|
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patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
4048 * regtry - try match of "prog" with at rex.line["col"]. |
| 7 | 4049 * Returns 0 for failure, number of lines contained in the match otherwise. |
| 4050 */ | |
| 4051 static long | |
|
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diff
changeset
|
4052 regtry( |
|
ac20f71e8aa4
patch 8.0.0646: the hlsearch test fails on fast systems
Christian Brabandt <cb@256bit.org>
parents:
11525
diff
changeset
|
4053 bt_regprog_T *prog, |
|
ac20f71e8aa4
patch 8.0.0646: the hlsearch test fails on fast systems
Christian Brabandt <cb@256bit.org>
parents:
11525
diff
changeset
|
4054 colnr_T col, |
|
ac20f71e8aa4
patch 8.0.0646: the hlsearch test fails on fast systems
Christian Brabandt <cb@256bit.org>
parents:
11525
diff
changeset
|
4055 proftime_T *tm, /* timeout limit or NULL */ |
|
ac20f71e8aa4
patch 8.0.0646: the hlsearch test fails on fast systems
Christian Brabandt <cb@256bit.org>
parents:
11525
diff
changeset
|
4056 int *timed_out) /* flag set on timeout or NULL */ |
| 7 | 4057 { |
|
14354
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patch 8.1.0192: executing regexp recursively fails with a crash
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parents:
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diff
changeset
|
4058 rex.input = rex.line + col; |
|
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patch 8.1.0192: executing regexp recursively fails with a crash
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parents:
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diff
changeset
|
4059 rex.need_clear_subexpr = TRUE; |
| 7 | 4060 #ifdef FEAT_SYN_HL |
|
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parents:
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diff
changeset
|
4061 // Clear the external match subpointers if necessary. |
|
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
4062 rex.need_clear_zsubexpr = (prog->reghasz == REX_SET); |
| 7 | 4063 #endif |
| 4064 | |
|
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parents:
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diff
changeset
|
4065 if (regmatch(prog->program + 1, tm, timed_out) == 0) |
| 189 | 4066 return 0; |
| 4067 | |
| 4068 cleanup_subexpr(); | |
| 4069 if (REG_MULTI) | |
| 7 | 4070 { |
|
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Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
4071 if (rex.reg_startpos[0].lnum < 0) |
| 7 | 4072 { |
|
10245
d76ccdacb41e
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parents:
10187
diff
changeset
|
4073 rex.reg_startpos[0].lnum = 0; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
4074 rex.reg_startpos[0].col = col; |
| 189 | 4075 } |
|
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d76ccdacb41e
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parents:
10187
diff
changeset
|
4076 if (rex.reg_endpos[0].lnum < 0) |
| 189 | 4077 { |
|
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patch 8.1.0192: executing regexp recursively fails with a crash
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parents:
14169
diff
changeset
|
4078 rex.reg_endpos[0].lnum = rex.lnum; |
|
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
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parents:
14169
diff
changeset
|
4079 rex.reg_endpos[0].col = (int)(rex.input - rex.line); |
| 7 | 4080 } |
| 4081 else | |
| 189 | 4082 /* Use line number of "\ze". */ |
|
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patch 8.1.0192: executing regexp recursively fails with a crash
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parents:
14169
diff
changeset
|
4083 rex.lnum = rex.reg_endpos[0].lnum; |
| 189 | 4084 } |
| 4085 else | |
| 4086 { | |
|
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Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
4087 if (rex.reg_startp[0] == NULL) |
|
14354
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patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
4088 rex.reg_startp[0] = rex.line + col; |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
4089 if (rex.reg_endp[0] == NULL) |
|
14354
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patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
4090 rex.reg_endp[0] = rex.input; |
| 189 | 4091 } |
| 7 | 4092 #ifdef FEAT_SYN_HL |
| 189 | 4093 /* Package any found \z(...\) matches for export. Default is none. */ |
| 4094 unref_extmatch(re_extmatch_out); | |
| 4095 re_extmatch_out = NULL; | |
| 4096 | |
| 4097 if (prog->reghasz == REX_SET) | |
| 4098 { | |
| 4099 int i; | |
| 4100 | |
| 4101 cleanup_zsubexpr(); | |
| 4102 re_extmatch_out = make_extmatch(); | |
| 4103 for (i = 0; i < NSUBEXP; i++) | |
| 7 | 4104 { |
| 189 | 4105 if (REG_MULTI) |
| 7 | 4106 { |
| 189 | 4107 /* Only accept single line matches. */ |
| 4108 if (reg_startzpos[i].lnum >= 0 | |
| 5820 | 4109 && reg_endzpos[i].lnum == reg_startzpos[i].lnum |
| 4110 && reg_endzpos[i].col >= reg_startzpos[i].col) | |
| 189 | 4111 re_extmatch_out->matches[i] = |
| 4112 vim_strnsave(reg_getline(reg_startzpos[i].lnum) | |
| 7 | 4113 + reg_startzpos[i].col, |
| 189 | 4114 reg_endzpos[i].col - reg_startzpos[i].col); |
| 4115 } | |
| 4116 else | |
| 4117 { | |
| 4118 if (reg_startzp[i] != NULL && reg_endzp[i] != NULL) | |
| 4119 re_extmatch_out->matches[i] = | |
| 7 | 4120 vim_strnsave(reg_startzp[i], |
| 189 | 4121 (int)(reg_endzp[i] - reg_startzp[i])); |
| 7 | 4122 } |
| 4123 } | |
| 189 | 4124 } |
| 7 | 4125 #endif |
|
14354
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Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
4126 return 1 + rex.lnum; |
| 7 | 4127 } |
| 4128 | |
| 4129 #ifdef FEAT_MBYTE | |
| 4130 /* | |
| 4131 * Get class of previous character. | |
| 4132 */ | |
| 4133 static int | |
|
7833
c079097365f3
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Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
4134 reg_prev_class(void) |
| 7 | 4135 { |
|
14354
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patch 8.1.0192: executing regexp recursively fails with a crash
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parents:
14169
diff
changeset
|
4136 if (rex.input > rex.line) |
|
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
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parents:
14169
diff
changeset
|
4137 return mb_get_class_buf(rex.input - 1 |
|
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
4138 - (*mb_head_off)(rex.line, rex.input - 1), rex.reg_buf); |
| 7 | 4139 return -1; |
| 4140 } | |
| 5735 | 4141 #endif |
| 4142 | |
|
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parents:
4720
diff
changeset
|
4143 /* |
|
14354
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patch 8.1.0192: executing regexp recursively fails with a crash
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parents:
14169
diff
changeset
|
4144 * Return TRUE if the current rex.input position matches the Visual area. |
|
4730
749e2b2755d5
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parents:
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diff
changeset
|
4145 */ |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4146 static int |
|
7833
c079097365f3
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Christian Brabandt <cb@256bit.org>
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7807
diff
changeset
|
4147 reg_match_visual(void) |
|
4730
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diff
changeset
|
4148 { |
|
749e2b2755d5
updated for version 7.3.1112
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diff
changeset
|
4149 pos_T top, bot; |
|
749e2b2755d5
updated for version 7.3.1112
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diff
changeset
|
4150 linenr_T lnum; |
|
749e2b2755d5
updated for version 7.3.1112
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diff
changeset
|
4151 colnr_T col; |
|
10245
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parents:
10187
diff
changeset
|
4152 win_T *wp = rex.reg_win == NULL ? curwin : rex.reg_win; |
|
4730
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diff
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|
4153 int mode; |
|
749e2b2755d5
updated for version 7.3.1112
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diff
changeset
|
4154 colnr_T start, end; |
|
749e2b2755d5
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diff
changeset
|
4155 colnr_T start2, end2; |
|
749e2b2755d5
updated for version 7.3.1112
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diff
changeset
|
4156 colnr_T cols; |
|
749e2b2755d5
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changeset
|
4157 |
|
749e2b2755d5
updated for version 7.3.1112
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diff
changeset
|
4158 /* Check if the buffer is the current buffer. */ |
|
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10187
diff
changeset
|
4159 if (rex.reg_buf != curbuf || VIsual.lnum == 0) |
|
4730
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|
4160 return FALSE; |
|
749e2b2755d5
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diff
changeset
|
4161 |
|
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changeset
|
4162 if (VIsual_active) |
|
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|
4163 { |
|
11121
778c10516955
patch 8.0.0448: some macros are in lower case
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10359
diff
changeset
|
4164 if (LT_POS(VIsual, wp->w_cursor)) |
|
4730
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changeset
|
4165 { |
|
749e2b2755d5
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diff
changeset
|
4166 top = VIsual; |
|
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|
4167 bot = wp->w_cursor; |
|
749e2b2755d5
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diff
changeset
|
4168 } |
|
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diff
changeset
|
4169 else |
|
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changeset
|
4170 { |
|
749e2b2755d5
updated for version 7.3.1112
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diff
changeset
|
4171 top = wp->w_cursor; |
|
749e2b2755d5
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diff
changeset
|
4172 bot = VIsual; |
|
749e2b2755d5
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diff
changeset
|
4173 } |
|
749e2b2755d5
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diff
changeset
|
4174 mode = VIsual_mode; |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4175 } |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4176 else |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4177 { |
|
11121
778c10516955
patch 8.0.0448: some macros are in lower case
Christian Brabandt <cb@256bit.org>
parents:
10359
diff
changeset
|
4178 if (LT_POS(curbuf->b_visual.vi_start, curbuf->b_visual.vi_end)) |
|
4730
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4179 { |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4180 top = curbuf->b_visual.vi_start; |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4181 bot = curbuf->b_visual.vi_end; |
|
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 else |
|
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 top = curbuf->b_visual.vi_end; |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4186 bot = curbuf->b_visual.vi_start; |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4187 } |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4188 mode = curbuf->b_visual.vi_mode; |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4189 } |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
4190 lnum = rex.lnum + rex.reg_firstlnum; |
|
4730
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4191 if (lnum < top.lnum || lnum > bot.lnum) |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4192 return FALSE; |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4193 |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4194 if (mode == 'v') |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4195 { |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
4196 col = (colnr_T)(rex.input - rex.line); |
|
4730
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4197 if ((lnum == top.lnum && col < top.col) |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4198 || (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
|
4199 return FALSE; |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4200 } |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4201 else if (mode == Ctrl_V) |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4202 { |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4203 getvvcol(wp, &top, &start, NULL, &end); |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4204 getvvcol(wp, &bot, &start2, NULL, &end2); |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4205 if (start2 < start) |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4206 start = start2; |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4207 if (end2 > end) |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4208 end = end2; |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4209 if (top.col == MAXCOL || bot.col == MAXCOL) |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4210 end = MAXCOL; |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
4211 cols = win_linetabsize(wp, rex.line, (colnr_T)(rex.input - rex.line)); |
|
4730
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4212 if (cols < start || cols > end - (*p_sel == 'e')) |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4213 return FALSE; |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4214 } |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4215 return TRUE; |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4216 } |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4217 |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
4218 #define ADVANCE_REGINPUT() MB_PTR_ADV(rex.input) |
| 7 | 4219 |
| 4220 /* | |
| 4221 * The arguments from BRACE_LIMITS are stored here. They are actually local | |
| 4222 * to regmatch(), but they are here to reduce the amount of stack space used | |
| 4223 * (it can be called recursively many times). | |
| 4224 */ | |
| 4225 static long bl_minval; | |
| 4226 static long bl_maxval; | |
| 4227 | |
| 4228 /* | |
| 4229 * regmatch - main matching routine | |
| 4230 * | |
| 180 | 4231 * Conceptually the strategy is simple: Check to see whether the current node |
| 4232 * matches, push an item onto the regstack and loop to see whether the rest | |
| 4233 * matches, and then act accordingly. In practice we make some effort to | |
| 4234 * avoid using the regstack, in particular by going through "ordinary" nodes | |
| 4235 * (that don't need to know whether the rest of the match failed) by a nested | |
| 4236 * loop. | |
| 7 | 4237 * |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
4238 * Returns TRUE when there is a match. Leaves rex.input and rex.lnum just after |
| 7 | 4239 * the last matched character. |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
4240 * Returns FALSE when there is no match. Leaves rex.input and rex.lnum in an |
| 7 | 4241 * undefined state! |
| 4242 */ | |
| 4243 static int | |
|
7833
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
4244 regmatch( |
|
11527
ac20f71e8aa4
patch 8.0.0646: the hlsearch test fails on fast systems
Christian Brabandt <cb@256bit.org>
parents:
11525
diff
changeset
|
4245 char_u *scan, /* Current node. */ |
|
ac20f71e8aa4
patch 8.0.0646: the hlsearch test fails on fast systems
Christian Brabandt <cb@256bit.org>
parents:
11525
diff
changeset
|
4246 proftime_T *tm UNUSED, /* timeout limit or NULL */ |
|
ac20f71e8aa4
patch 8.0.0646: the hlsearch test fails on fast systems
Christian Brabandt <cb@256bit.org>
parents:
11525
diff
changeset
|
4247 int *timed_out UNUSED) /* flag set on timeout or NULL */ |
| 7 | 4248 { |
| 180 | 4249 char_u *next; /* Next node. */ |
| 4250 int op; | |
| 4251 int c; | |
| 4252 regitem_T *rp; | |
| 4253 int no; | |
| 4254 int status; /* one of the RA_ values: */ | |
| 4255 #define RA_FAIL 1 /* something failed, abort */ | |
| 4256 #define RA_CONT 2 /* continue in inner loop */ | |
| 4257 #define RA_BREAK 3 /* break inner loop */ | |
| 4258 #define RA_MATCH 4 /* successful match */ | |
| 4259 #define RA_NOMATCH 5 /* didn't match */ | |
|
11527
ac20f71e8aa4
patch 8.0.0646: the hlsearch test fails on fast systems
Christian Brabandt <cb@256bit.org>
parents:
11525
diff
changeset
|
4260 #ifdef FEAT_RELTIME |
|
ac20f71e8aa4
patch 8.0.0646: the hlsearch test fails on fast systems
Christian Brabandt <cb@256bit.org>
parents:
11525
diff
changeset
|
4261 int tm_count = 0; |
|
ac20f71e8aa4
patch 8.0.0646: the hlsearch test fails on fast systems
Christian Brabandt <cb@256bit.org>
parents:
11525
diff
changeset
|
4262 #endif |
| 270 | 4263 |
| 1520 | 4264 /* Make "regstack" and "backpos" empty. They are allocated and freed in |
| 4444 | 4265 * bt_regexec_both() to reduce malloc()/free() calls. */ |
| 270 | 4266 regstack.ga_len = 0; |
| 4267 backpos.ga_len = 0; | |
| 233 | 4268 |
| 180 | 4269 /* |
| 233 | 4270 * Repeat until "regstack" is empty. |
| 180 | 4271 */ |
| 4272 for (;;) | |
| 4273 { | |
| 5310 | 4274 /* Some patterns may take a long time to match, e.g., "\([a-z]\+\)\+Q". |
| 4275 * Allow interrupting them with CTRL-C. */ | |
| 7 | 4276 fast_breakcheck(); |
| 4277 | |
| 4278 #ifdef DEBUG | |
| 4279 if (scan != NULL && regnarrate) | |
| 4280 { | |
| 4444 | 4281 mch_errmsg((char *)regprop(scan)); |
| 7 | 4282 mch_errmsg("(\n"); |
| 4283 } | |
| 4284 #endif | |
| 180 | 4285 |
| 4286 /* | |
| 233 | 4287 * Repeat for items that can be matched sequentially, without using the |
| 180 | 4288 * regstack. |
| 4289 */ | |
| 4290 for (;;) | |
| 7 | 4291 { |
| 180 | 4292 if (got_int || scan == NULL) |
| 4293 { | |
| 4294 status = RA_FAIL; | |
| 4295 break; | |
| 4296 } | |
|
11527
ac20f71e8aa4
patch 8.0.0646: the hlsearch test fails on fast systems
Christian Brabandt <cb@256bit.org>
parents:
11525
diff
changeset
|
4297 #ifdef FEAT_RELTIME |
|
ac20f71e8aa4
patch 8.0.0646: the hlsearch test fails on fast systems
Christian Brabandt <cb@256bit.org>
parents:
11525
diff
changeset
|
4298 /* Check for timeout once in a 100 times to avoid overhead. */ |
|
ac20f71e8aa4
patch 8.0.0646: the hlsearch test fails on fast systems
Christian Brabandt <cb@256bit.org>
parents:
11525
diff
changeset
|
4299 if (tm != NULL && ++tm_count == 100) |
|
ac20f71e8aa4
patch 8.0.0646: the hlsearch test fails on fast systems
Christian Brabandt <cb@256bit.org>
parents:
11525
diff
changeset
|
4300 { |
|
ac20f71e8aa4
patch 8.0.0646: the hlsearch test fails on fast systems
Christian Brabandt <cb@256bit.org>
parents:
11525
diff
changeset
|
4301 tm_count = 0; |
|
ac20f71e8aa4
patch 8.0.0646: the hlsearch test fails on fast systems
Christian Brabandt <cb@256bit.org>
parents:
11525
diff
changeset
|
4302 if (profile_passed_limit(tm)) |
|
ac20f71e8aa4
patch 8.0.0646: the hlsearch test fails on fast systems
Christian Brabandt <cb@256bit.org>
parents:
11525
diff
changeset
|
4303 { |
|
ac20f71e8aa4
patch 8.0.0646: the hlsearch test fails on fast systems
Christian Brabandt <cb@256bit.org>
parents:
11525
diff
changeset
|
4304 if (timed_out != NULL) |
|
ac20f71e8aa4
patch 8.0.0646: the hlsearch test fails on fast systems
Christian Brabandt <cb@256bit.org>
parents:
11525
diff
changeset
|
4305 *timed_out = TRUE; |
|
ac20f71e8aa4
patch 8.0.0646: the hlsearch test fails on fast systems
Christian Brabandt <cb@256bit.org>
parents:
11525
diff
changeset
|
4306 status = RA_FAIL; |
|
ac20f71e8aa4
patch 8.0.0646: the hlsearch test fails on fast systems
Christian Brabandt <cb@256bit.org>
parents:
11525
diff
changeset
|
4307 break; |
|
ac20f71e8aa4
patch 8.0.0646: the hlsearch test fails on fast systems
Christian Brabandt <cb@256bit.org>
parents:
11525
diff
changeset
|
4308 } |
|
ac20f71e8aa4
patch 8.0.0646: the hlsearch test fails on fast systems
Christian Brabandt <cb@256bit.org>
parents:
11525
diff
changeset
|
4309 } |
|
ac20f71e8aa4
patch 8.0.0646: the hlsearch test fails on fast systems
Christian Brabandt <cb@256bit.org>
parents:
11525
diff
changeset
|
4310 #endif |
| 180 | 4311 status = RA_CONT; |
| 4312 | |
| 7 | 4313 #ifdef DEBUG |
| 4314 if (regnarrate) | |
| 4315 { | |
| 4444 | 4316 mch_errmsg((char *)regprop(scan)); |
| 7 | 4317 mch_errmsg("...\n"); |
| 4318 # ifdef FEAT_SYN_HL | |
| 4319 if (re_extmatch_in != NULL) | |
| 4320 { | |
| 4321 int i; | |
| 4322 | |
| 4323 mch_errmsg(_("External submatches:\n")); | |
| 4324 for (i = 0; i < NSUBEXP; i++) | |
| 4325 { | |
| 4326 mch_errmsg(" \""); | |
| 4327 if (re_extmatch_in->matches[i] != NULL) | |
| 4444 | 4328 mch_errmsg((char *)re_extmatch_in->matches[i]); |
| 7 | 4329 mch_errmsg("\"\n"); |
| 4330 } | |
| 4331 } | |
| 4332 # endif | |
| 4333 } | |
| 4334 #endif | |
| 4335 next = regnext(scan); | |
| 4336 | |
| 4337 op = OP(scan); | |
| 4338 /* 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
|
4339 if (!rex.reg_line_lbr && WITH_NL(op) && REG_MULTI |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
4340 && *rex.input == NUL && rex.lnum <= rex.reg_maxline) |
| 7 | 4341 { |
| 4342 reg_nextline(); | |
| 4343 } | |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
4344 else if (rex.reg_line_lbr && WITH_NL(op) && *rex.input == '\n') |
| 7 | 4345 { |
| 4346 ADVANCE_REGINPUT(); | |
| 4347 } | |
| 4348 else | |
| 4349 { | |
| 4350 if (WITH_NL(op)) | |
| 180 | 4351 op -= ADD_NL; |
| 7 | 4352 #ifdef FEAT_MBYTE |
| 4353 if (has_mbyte) | |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
4354 c = (*mb_ptr2char)(rex.input); |
| 7 | 4355 else |
| 4356 #endif | |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
4357 c = *rex.input; |
| 7 | 4358 switch (op) |
| 4359 { | |
| 4360 case BOL: | |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
4361 if (rex.input != rex.line) |
| 180 | 4362 status = RA_NOMATCH; |
| 7 | 4363 break; |
| 4364 | |
| 4365 case EOL: | |
| 4366 if (c != NUL) | |
| 180 | 4367 status = RA_NOMATCH; |
| 7 | 4368 break; |
| 4369 | |
| 4370 case RE_BOF: | |
| 1458 | 4371 /* We're not at the beginning of the file when below the first |
| 4372 * line where we started, not at the start of the line or we | |
| 4373 * didn't start at the first line of the buffer. */ | |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
4374 if (rex.lnum != 0 || rex.input != rex.line |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
4375 || (REG_MULTI && rex.reg_firstlnum > 1)) |
| 180 | 4376 status = RA_NOMATCH; |
| 7 | 4377 break; |
| 4378 | |
| 4379 case RE_EOF: | |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
4380 if (rex.lnum != rex.reg_maxline || c != NUL) |
| 180 | 4381 status = RA_NOMATCH; |
| 7 | 4382 break; |
| 4383 | |
| 4384 case CURSOR: | |
| 4385 /* 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
|
4386 * 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
|
4387 if (rex.reg_win == NULL |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
4388 || (rex.lnum + rex.reg_firstlnum |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
4389 != rex.reg_win->w_cursor.lnum) |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
4390 || ((colnr_T)(rex.input - rex.line) |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
4391 != rex.reg_win->w_cursor.col)) |
| 180 | 4392 status = RA_NOMATCH; |
| 7 | 4393 break; |
| 4394 | |
| 639 | 4395 case RE_MARK: |
|
4732
0798b096bab3
updated for version 7.3.1113
Bram Moolenaar <bram@vim.org>
parents:
4730
diff
changeset
|
4396 /* Compare the mark position to the match position. */ |
| 639 | 4397 { |
| 4398 int mark = OPERAND(scan)[0]; | |
| 4399 int cmp = OPERAND(scan)[1]; | |
| 4400 pos_T *pos; | |
| 4401 | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
4402 pos = getmark_buf(rex.reg_buf, mark, FALSE); |
| 1148 | 4403 if (pos == NULL /* mark doesn't exist */ |
|
4732
0798b096bab3
updated for version 7.3.1113
Bram Moolenaar <bram@vim.org>
parents:
4730
diff
changeset
|
4404 || pos->lnum <= 0 /* mark isn't set in reg_buf */ |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
4405 || (pos->lnum == rex.lnum + rex.reg_firstlnum |
|
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
4406 ? (pos->col == (colnr_T)(rex.input - rex.line) |
| 639 | 4407 ? (cmp == '<' || cmp == '>') |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
4408 : (pos->col < (colnr_T)(rex.input - rex.line) |
| 639 | 4409 ? cmp != '>' |
| 4410 : cmp != '<')) | |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
4411 : (pos->lnum < rex.lnum + rex.reg_firstlnum |
| 639 | 4412 ? cmp != '>' |
| 4413 : cmp != '<'))) | |
| 4414 status = RA_NOMATCH; | |
| 4415 } | |
| 4416 break; | |
| 4417 | |
| 4418 case RE_VISUAL: | |
|
4730
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4419 if (!reg_match_visual()) |
| 639 | 4420 status = RA_NOMATCH; |
| 4421 break; | |
| 4422 | |
| 7 | 4423 case RE_LNUM: |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
4424 if (!REG_MULTI || !re_num_cmp((long_u)(rex.lnum + rex.reg_firstlnum), |
| 7 | 4425 scan)) |
| 180 | 4426 status = RA_NOMATCH; |
| 7 | 4427 break; |
| 4428 | |
| 4429 case RE_COL: | |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
4430 if (!re_num_cmp((long_u)(rex.input - rex.line) + 1, scan)) |
| 180 | 4431 status = RA_NOMATCH; |
| 7 | 4432 break; |
| 4433 | |
| 4434 case RE_VCOL: | |
| 4435 if (!re_num_cmp((long_u)win_linetabsize( | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
4436 rex.reg_win == NULL ? curwin : rex.reg_win, |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
4437 rex.line, (colnr_T)(rex.input - rex.line)) + 1, scan)) |
| 180 | 4438 status = RA_NOMATCH; |
| 7 | 4439 break; |
| 4440 | |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
4441 case BOW: /* \<word; rex.input points to w */ |
| 7 | 4442 if (c == NUL) /* Can't match at end of line */ |
| 180 | 4443 status = RA_NOMATCH; |
| 7 | 4444 #ifdef FEAT_MBYTE |
| 180 | 4445 else if (has_mbyte) |
| 7 | 4446 { |
| 4447 int this_class; | |
| 4448 | |
| 4449 /* Get class of current and previous char (if it exists). */ | |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
4450 this_class = mb_get_class_buf(rex.input, rex.reg_buf); |
| 7 | 4451 if (this_class <= 1) |
| 180 | 4452 status = RA_NOMATCH; /* not on a word at all */ |
| 4453 else if (reg_prev_class() == this_class) | |
| 4454 status = RA_NOMATCH; /* previous char is in same word */ | |
| 7 | 4455 } |
| 4456 #endif | |
| 4457 else | |
| 4458 { | |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
4459 if (!vim_iswordc_buf(c, rex.reg_buf) || (rex.input > rex.line |
|
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
4460 && vim_iswordc_buf(rex.input[-1], rex.reg_buf))) |
| 180 | 4461 status = RA_NOMATCH; |
| 7 | 4462 } |
| 4463 break; | |
| 4464 | |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
4465 case EOW: /* word\>; rex.input points after d */ |
|
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
4466 if (rex.input == rex.line) /* Can't match at start of line */ |
| 180 | 4467 status = RA_NOMATCH; |
| 7 | 4468 #ifdef FEAT_MBYTE |
| 180 | 4469 else if (has_mbyte) |
| 7 | 4470 { |
| 4471 int this_class, prev_class; | |
| 4472 | |
| 4473 /* Get class of current and previous char (if it exists). */ | |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
4474 this_class = mb_get_class_buf(rex.input, rex.reg_buf); |
| 7 | 4475 prev_class = reg_prev_class(); |
| 180 | 4476 if (this_class == prev_class |
| 4477 || prev_class == 0 || prev_class == 1) | |
| 4478 status = RA_NOMATCH; | |
| 7 | 4479 } |
| 180 | 4480 #endif |
| 7 | 4481 else |
| 4482 { | |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
4483 if (!vim_iswordc_buf(rex.input[-1], rex.reg_buf) |
|
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
4484 || (rex.input[0] != NUL |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
4485 && vim_iswordc_buf(c, rex.reg_buf))) |
| 180 | 4486 status = RA_NOMATCH; |
| 7 | 4487 } |
| 4488 break; /* Matched with EOW */ | |
| 4489 | |
| 4490 case ANY: | |
| 4084 | 4491 /* ANY does not match new lines. */ |
| 7 | 4492 if (c == NUL) |
| 180 | 4493 status = RA_NOMATCH; |
| 4494 else | |
| 4495 ADVANCE_REGINPUT(); | |
| 7 | 4496 break; |
| 4497 | |
| 4498 case IDENT: | |
| 4499 if (!vim_isIDc(c)) | |
| 180 | 4500 status = RA_NOMATCH; |
| 4501 else | |
| 4502 ADVANCE_REGINPUT(); | |
| 7 | 4503 break; |
| 4504 | |
| 4505 case SIDENT: | |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
4506 if (VIM_ISDIGIT(*rex.input) || !vim_isIDc(c)) |
| 180 | 4507 status = RA_NOMATCH; |
| 4508 else | |
| 4509 ADVANCE_REGINPUT(); | |
| 7 | 4510 break; |
| 4511 | |
| 4512 case KWORD: | |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
4513 if (!vim_iswordp_buf(rex.input, rex.reg_buf)) |
| 180 | 4514 status = RA_NOMATCH; |
| 4515 else | |
| 4516 ADVANCE_REGINPUT(); | |
| 7 | 4517 break; |
| 4518 | |
| 4519 case SKWORD: | |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
4520 if (VIM_ISDIGIT(*rex.input) |
|
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
4521 || !vim_iswordp_buf(rex.input, rex.reg_buf)) |
| 180 | 4522 status = RA_NOMATCH; |
| 4523 else | |
| 4524 ADVANCE_REGINPUT(); | |
| 7 | 4525 break; |
| 4526 | |
| 4527 case FNAME: | |
| 4528 if (!vim_isfilec(c)) | |
| 180 | 4529 status = RA_NOMATCH; |
| 4530 else | |
| 4531 ADVANCE_REGINPUT(); | |
| 7 | 4532 break; |
| 4533 | |
| 4534 case SFNAME: | |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
4535 if (VIM_ISDIGIT(*rex.input) || !vim_isfilec(c)) |
| 180 | 4536 status = RA_NOMATCH; |
| 4537 else | |
| 4538 ADVANCE_REGINPUT(); | |
| 7 | 4539 break; |
| 4540 | |
| 4541 case PRINT: | |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
4542 if (!vim_isprintc(PTR2CHAR(rex.input))) |
| 180 | 4543 status = RA_NOMATCH; |
| 4544 else | |
| 4545 ADVANCE_REGINPUT(); | |
| 7 | 4546 break; |
| 4547 | |
| 4548 case SPRINT: | |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
4549 if (VIM_ISDIGIT(*rex.input) || !vim_isprintc(PTR2CHAR(rex.input))) |
| 180 | 4550 status = RA_NOMATCH; |
| 4551 else | |
| 4552 ADVANCE_REGINPUT(); | |
| 7 | 4553 break; |
| 4554 | |
| 4555 case WHITE: | |
|
11129
f4ea50924c6d
patch 8.0.0452: some macros are in lower case
Christian Brabandt <cb@256bit.org>
parents:
11127
diff
changeset
|
4556 if (!VIM_ISWHITE(c)) |
| 180 | 4557 status = RA_NOMATCH; |
| 4558 else | |
| 4559 ADVANCE_REGINPUT(); | |
| 7 | 4560 break; |
| 4561 | |
| 4562 case NWHITE: | |
|
11129
f4ea50924c6d
patch 8.0.0452: some macros are in lower case
Christian Brabandt <cb@256bit.org>
parents:
11127
diff
changeset
|
4563 if (c == NUL || VIM_ISWHITE(c)) |
| 180 | 4564 status = RA_NOMATCH; |
| 4565 else | |
| 4566 ADVANCE_REGINPUT(); | |
| 7 | 4567 break; |
| 4568 | |
| 4569 case DIGIT: | |
| 4570 if (!ri_digit(c)) | |
| 180 | 4571 status = RA_NOMATCH; |
| 4572 else | |
| 4573 ADVANCE_REGINPUT(); | |
| 7 | 4574 break; |
| 4575 | |
| 4576 case NDIGIT: | |
| 4577 if (c == NUL || ri_digit(c)) | |
| 180 | 4578 status = RA_NOMATCH; |
| 4579 else | |
| 4580 ADVANCE_REGINPUT(); | |
| 7 | 4581 break; |
| 4582 | |
| 4583 case HEX: | |
| 4584 if (!ri_hex(c)) | |
| 180 | 4585 status = RA_NOMATCH; |
| 4586 else | |
| 4587 ADVANCE_REGINPUT(); | |
| 7 | 4588 break; |
| 4589 | |
| 4590 case NHEX: | |
| 4591 if (c == NUL || ri_hex(c)) | |
| 180 | 4592 status = RA_NOMATCH; |
| 4593 else | |
| 4594 ADVANCE_REGINPUT(); | |
| 7 | 4595 break; |
| 4596 | |
| 4597 case OCTAL: | |
| 4598 if (!ri_octal(c)) | |
| 180 | 4599 status = RA_NOMATCH; |
| 4600 else | |
| 4601 ADVANCE_REGINPUT(); | |
| 7 | 4602 break; |
| 4603 | |
| 4604 case NOCTAL: | |
| 4605 if (c == NUL || ri_octal(c)) | |
| 180 | 4606 status = RA_NOMATCH; |
| 4607 else | |
| 4608 ADVANCE_REGINPUT(); | |
| 7 | 4609 break; |
| 4610 | |
| 4611 case WORD: | |
| 4612 if (!ri_word(c)) | |
| 180 | 4613 status = RA_NOMATCH; |
| 4614 else | |
| 4615 ADVANCE_REGINPUT(); | |
| 7 | 4616 break; |
| 4617 | |
| 4618 case NWORD: | |
| 4619 if (c == NUL || ri_word(c)) | |
| 180 | 4620 status = RA_NOMATCH; |
| 4621 else | |
| 4622 ADVANCE_REGINPUT(); | |
| 7 | 4623 break; |
| 4624 | |
| 4625 case HEAD: | |
| 4626 if (!ri_head(c)) | |
| 180 | 4627 status = RA_NOMATCH; |
| 4628 else | |
| 4629 ADVANCE_REGINPUT(); | |
| 7 | 4630 break; |
| 4631 | |
| 4632 case NHEAD: | |
| 4633 if (c == NUL || ri_head(c)) | |
| 180 | 4634 status = RA_NOMATCH; |
| 4635 else | |
| 4636 ADVANCE_REGINPUT(); | |
| 7 | 4637 break; |
| 4638 | |
| 4639 case ALPHA: | |
| 4640 if (!ri_alpha(c)) | |
| 180 | 4641 status = RA_NOMATCH; |
| 4642 else | |
| 4643 ADVANCE_REGINPUT(); | |
| 7 | 4644 break; |
| 4645 | |
| 4646 case NALPHA: | |
| 4647 if (c == NUL || ri_alpha(c)) | |
| 180 | 4648 status = RA_NOMATCH; |
| 4649 else | |
| 4650 ADVANCE_REGINPUT(); | |
| 7 | 4651 break; |
| 4652 | |
| 4653 case LOWER: | |
| 4654 if (!ri_lower(c)) | |
| 180 | 4655 status = RA_NOMATCH; |
| 4656 else | |
| 4657 ADVANCE_REGINPUT(); | |
| 7 | 4658 break; |
| 4659 | |
| 4660 case NLOWER: | |
| 4661 if (c == NUL || ri_lower(c)) | |
| 180 | 4662 status = RA_NOMATCH; |
| 4663 else | |
| 4664 ADVANCE_REGINPUT(); | |
| 7 | 4665 break; |
| 4666 | |
| 4667 case UPPER: | |
| 4668 if (!ri_upper(c)) | |
| 180 | 4669 status = RA_NOMATCH; |
| 4670 else | |
| 4671 ADVANCE_REGINPUT(); | |
| 7 | 4672 break; |
| 4673 | |
| 4674 case NUPPER: | |
| 4675 if (c == NUL || ri_upper(c)) | |
| 180 | 4676 status = RA_NOMATCH; |
| 4677 else | |
| 4678 ADVANCE_REGINPUT(); | |
| 7 | 4679 break; |
| 4680 | |
| 4681 case EXACTLY: | |
| 4682 { | |
| 4683 int len; | |
| 4684 char_u *opnd; | |
| 4685 | |
| 4686 opnd = OPERAND(scan); | |
| 4687 /* Inline the first byte, for speed. */ | |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
4688 if (*opnd != *rex.input |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
4689 && (!rex.reg_ic || ( |
| 7 | 4690 #ifdef FEAT_MBYTE |
| 4691 !enc_utf8 && | |
| 4692 #endif | |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
4693 MB_TOLOWER(*opnd) != MB_TOLOWER(*rex.input)))) |
| 180 | 4694 status = RA_NOMATCH; |
| 4695 else if (*opnd == NUL) | |
| 7 | 4696 { |
| 4697 /* match empty string always works; happens when "~" is | |
| 4698 * empty. */ | |
| 4699 } | |
| 5899 | 4700 else |
| 4701 { | |
| 4702 if (opnd[1] == NUL | |
| 7 | 4703 #ifdef FEAT_MBYTE |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
4704 && !(enc_utf8 && rex.reg_ic) |
| 7 | 4705 #endif |
| 4706 ) | |
| 5899 | 4707 { |
| 4708 len = 1; /* matched a single byte above */ | |
| 4709 } | |
| 4710 else | |
| 4711 { | |
| 4712 /* Need to match first byte again for multi-byte. */ | |
| 4713 len = (int)STRLEN(opnd); | |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
4714 if (cstrncmp(opnd, rex.input, &len) != 0) |
| 5899 | 4715 status = RA_NOMATCH; |
| 4716 } | |
| 7 | 4717 #ifdef FEAT_MBYTE |
| 5901 | 4718 /* Check for following composing character, unless %C |
| 4719 * follows (skips over all composing chars). */ | |
| 5899 | 4720 if (status != RA_NOMATCH |
| 4721 && enc_utf8 | |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
4722 && UTF_COMPOSINGLIKE(rex.input, rex.input + len) |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
4723 && !rex.reg_icombine |
| 5901 | 4724 && OP(next) != RE_COMPOSING) |
| 7 | 4725 { |
| 4726 /* raaron: This code makes a composing character get | |
| 4727 * ignored, which is the correct behavior (sometimes) | |
| 4728 * for voweled Hebrew texts. */ | |
| 5899 | 4729 status = RA_NOMATCH; |
| 7 | 4730 } |
| 180 | 4731 #endif |
| 5899 | 4732 if (status != RA_NOMATCH) |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
4733 rex.input += len; |
| 7 | 4734 } |
| 4735 } | |
| 4736 break; | |
| 4737 | |
| 4738 case ANYOF: | |
| 4739 case ANYBUT: | |
| 4740 if (c == NUL) | |
| 180 | 4741 status = RA_NOMATCH; |
| 4742 else if ((cstrchr(OPERAND(scan), c) == NULL) == (op == ANYOF)) | |
| 4743 status = RA_NOMATCH; | |
| 4744 else | |
| 4745 ADVANCE_REGINPUT(); | |
| 7 | 4746 break; |
| 4747 | |
| 4748 #ifdef FEAT_MBYTE | |
| 4749 case MULTIBYTECODE: | |
| 4750 if (has_mbyte) | |
| 4751 { | |
| 4752 int i, len; | |
| 4753 char_u *opnd; | |
| 944 | 4754 int opndc = 0, inpc; |
| 7 | 4755 |
| 4756 opnd = OPERAND(scan); | |
| 4757 /* Safety check (just in case 'encoding' was changed since | |
| 4758 * compiling the program). */ | |
| 474 | 4759 if ((len = (*mb_ptr2len)(opnd)) < 2) |
| 180 | 4760 { |
| 4761 status = RA_NOMATCH; | |
| 4762 break; | |
| 4763 } | |
| 714 | 4764 if (enc_utf8) |
|
11269
121d29004998
patch 8.0.0520: using a function pointer while the function is known
Christian Brabandt <cb@256bit.org>
parents:
11267
diff
changeset
|
4765 opndc = utf_ptr2char(opnd); |
| 714 | 4766 if (enc_utf8 && utf_iscomposing(opndc)) |
| 4767 { | |
| 4768 /* When only a composing char is given match at any | |
| 4769 * position where that composing char appears. */ | |
| 4770 status = RA_NOMATCH; | |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
4771 for (i = 0; rex.input[i] != NUL; |
|
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patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
4772 i += utf_ptr2len(rex.input + i)) |
| 180 | 4773 { |
|
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patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
4774 inpc = utf_ptr2char(rex.input + i); |
| 714 | 4775 if (!utf_iscomposing(inpc)) |
| 4776 { | |
| 4777 if (i > 0) | |
| 4778 break; | |
| 4779 } | |
| 4780 else if (opndc == inpc) | |
| 4781 { | |
| 4782 /* Include all following composing chars. */ | |
|
14354
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patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
4783 len = i + utfc_ptr2len(rex.input + i); |
| 714 | 4784 status = RA_MATCH; |
| 4785 break; | |
| 4786 } | |
| 180 | 4787 } |
| 714 | 4788 } |
| 4789 else | |
| 4790 for (i = 0; i < len; ++i) | |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
4791 if (opnd[i] != rex.input[i]) |
| 714 | 4792 { |
| 4793 status = RA_NOMATCH; | |
| 4794 break; | |
| 4795 } | |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
4796 rex.input += len; |
| 7 | 4797 } |
| 4798 else | |
| 180 | 4799 status = RA_NOMATCH; |
| 7 | 4800 break; |
| 4801 #endif | |
| 5901 | 4802 case RE_COMPOSING: |
| 4803 #ifdef FEAT_MBYTE | |
| 4804 if (enc_utf8) | |
| 4805 { | |
| 4806 /* Skip composing characters. */ | |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
4807 while (utf_iscomposing(utf_ptr2char(rex.input))) |
|
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
4808 MB_CPTR_ADV(rex.input); |
| 5901 | 4809 } |
| 4810 #endif | |
| 4811 break; | |
| 7 | 4812 |
| 4813 case NOTHING: | |
| 4814 break; | |
| 4815 | |
| 4816 case BACK: | |
| 233 | 4817 { |
| 4818 int i; | |
| 4819 backpos_T *bp; | |
| 4820 | |
| 4821 /* | |
| 4822 * When we run into BACK we need to check if we don't keep | |
| 4823 * looping without matching any input. The second and later | |
| 4824 * times a BACK is encountered it fails if the input is still | |
| 4825 * at the same position as the previous time. | |
| 4826 * The positions are stored in "backpos" and found by the | |
| 4827 * current value of "scan", the position in the RE program. | |
| 4828 */ | |
| 4829 bp = (backpos_T *)backpos.ga_data; | |
| 4830 for (i = 0; i < backpos.ga_len; ++i) | |
| 4831 if (bp[i].bp_scan == scan) | |
| 4832 break; | |
| 4833 if (i == backpos.ga_len) | |
| 4834 { | |
| 4835 /* First time at this BACK, make room to store the pos. */ | |
| 4836 if (ga_grow(&backpos, 1) == FAIL) | |
| 4837 status = RA_FAIL; | |
| 4838 else | |
| 4839 { | |
| 4840 /* get "ga_data" again, it may have changed */ | |
| 4841 bp = (backpos_T *)backpos.ga_data; | |
| 4842 bp[i].bp_scan = scan; | |
| 4843 ++backpos.ga_len; | |
| 4844 } | |
| 4845 } | |
| 4846 else if (reg_save_equal(&bp[i].bp_pos)) | |
| 4847 /* Still at same position as last time, fail. */ | |
| 4848 status = RA_NOMATCH; | |
| 4849 | |
| 4850 if (status != RA_FAIL && status != RA_NOMATCH) | |
| 4851 reg_save(&bp[i].bp_pos, &backpos); | |
| 4852 } | |
| 179 | 4853 break; |
| 4854 | |
| 7 | 4855 case MOPEN + 0: /* Match start: \zs */ |
| 4856 case MOPEN + 1: /* \( */ | |
| 4857 case MOPEN + 2: | |
| 4858 case MOPEN + 3: | |
| 4859 case MOPEN + 4: | |
| 4860 case MOPEN + 5: | |
| 4861 case MOPEN + 6: | |
| 4862 case MOPEN + 7: | |
| 4863 case MOPEN + 8: | |
| 4864 case MOPEN + 9: | |
| 4865 { | |
| 4866 no = op - MOPEN; | |
| 4867 cleanup_subexpr(); | |
| 270 | 4868 rp = regstack_push(RS_MOPEN, scan); |
| 180 | 4869 if (rp == NULL) |
| 4870 status = RA_FAIL; | |
| 4871 else | |
| 4872 { | |
| 4873 rp->rs_no = no; | |
|
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Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
4874 save_se(&rp->rs_un.sesave, &rex.reg_startpos[no], |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
4875 &rex.reg_startp[no]); |
| 180 | 4876 /* We simply continue and handle the result when done. */ |
| 4877 } | |
| 7 | 4878 } |
| 180 | 4879 break; |
| 7 | 4880 |
| 4881 case NOPEN: /* \%( */ | |
| 4882 case NCLOSE: /* \) after \%( */ | |
| 270 | 4883 if (regstack_push(RS_NOPEN, scan) == NULL) |
| 180 | 4884 status = RA_FAIL; |
| 4885 /* We simply continue and handle the result when done. */ | |
| 4886 break; | |
| 7 | 4887 |
| 4888 #ifdef FEAT_SYN_HL | |
| 4889 case ZOPEN + 1: | |
| 4890 case ZOPEN + 2: | |
| 4891 case ZOPEN + 3: | |
| 4892 case ZOPEN + 4: | |
| 4893 case ZOPEN + 5: | |
| 4894 case ZOPEN + 6: | |
| 4895 case ZOPEN + 7: | |
| 4896 case ZOPEN + 8: | |
| 4897 case ZOPEN + 9: | |
| 4898 { | |
| 4899 no = op - ZOPEN; | |
| 4900 cleanup_zsubexpr(); | |
| 270 | 4901 rp = regstack_push(RS_ZOPEN, scan); |
| 180 | 4902 if (rp == NULL) |
| 4903 status = RA_FAIL; | |
| 4904 else | |
| 4905 { | |
| 4906 rp->rs_no = no; | |
| 4907 save_se(&rp->rs_un.sesave, ®_startzpos[no], | |
| 4908 ®_startzp[no]); | |
| 4909 /* We simply continue and handle the result when done. */ | |
| 4910 } | |
| 7 | 4911 } |
| 180 | 4912 break; |
| 7 | 4913 #endif |
| 4914 | |
| 4915 case MCLOSE + 0: /* Match end: \ze */ | |
| 4916 case MCLOSE + 1: /* \) */ | |
| 4917 case MCLOSE + 2: | |
| 4918 case MCLOSE + 3: | |
| 4919 case MCLOSE + 4: | |
| 4920 case MCLOSE + 5: | |
| 4921 case MCLOSE + 6: | |
| 4922 case MCLOSE + 7: | |
| 4923 case MCLOSE + 8: | |
| 4924 case MCLOSE + 9: | |
| 4925 { | |
| 4926 no = op - MCLOSE; | |
| 4927 cleanup_subexpr(); | |
| 270 | 4928 rp = regstack_push(RS_MCLOSE, scan); |
| 180 | 4929 if (rp == NULL) |
| 4930 status = RA_FAIL; | |
| 4931 else | |
| 4932 { | |
| 4933 rp->rs_no = no; | |
|
10245
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commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
4934 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
|
4935 &rex.reg_endp[no]); |
| 180 | 4936 /* We simply continue and handle the result when done. */ |
| 4937 } | |
| 7 | 4938 } |
| 180 | 4939 break; |
| 7 | 4940 |
| 4941 #ifdef FEAT_SYN_HL | |
| 4942 case ZCLOSE + 1: /* \) after \z( */ | |
| 4943 case ZCLOSE + 2: | |
| 4944 case ZCLOSE + 3: | |
| 4945 case ZCLOSE + 4: | |
| 4946 case ZCLOSE + 5: | |
| 4947 case ZCLOSE + 6: | |
| 4948 case ZCLOSE + 7: | |
| 4949 case ZCLOSE + 8: | |
| 4950 case ZCLOSE + 9: | |
| 4951 { | |
| 4952 no = op - ZCLOSE; | |
| 4953 cleanup_zsubexpr(); | |
| 270 | 4954 rp = regstack_push(RS_ZCLOSE, scan); |
| 180 | 4955 if (rp == NULL) |
| 4956 status = RA_FAIL; | |
| 4957 else | |
| 4958 { | |
| 4959 rp->rs_no = no; | |
| 4960 save_se(&rp->rs_un.sesave, ®_endzpos[no], | |
| 4961 ®_endzp[no]); | |
| 4962 /* We simply continue and handle the result when done. */ | |
| 4963 } | |
| 7 | 4964 } |
| 180 | 4965 break; |
| 7 | 4966 #endif |
| 4967 | |
| 4968 case BACKREF + 1: | |
| 4969 case BACKREF + 2: | |
| 4970 case BACKREF + 3: | |
| 4971 case BACKREF + 4: | |
| 4972 case BACKREF + 5: | |
| 4973 case BACKREF + 6: | |
| 4974 case BACKREF + 7: | |
| 4975 case BACKREF + 8: | |
| 4976 case BACKREF + 9: | |
| 4977 { | |
| 4978 int len; | |
| 4979 | |
| 4980 no = op - BACKREF; | |
| 4981 cleanup_subexpr(); | |
| 4982 if (!REG_MULTI) /* Single-line regexp */ | |
| 4983 { | |
|
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commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
4984 if (rex.reg_startp[no] == NULL || rex.reg_endp[no] == NULL) |
| 7 | 4985 { |
| 4986 /* Backref was not set: Match an empty string. */ | |
| 4987 len = 0; | |
| 4988 } | |
| 4989 else | |
| 4990 { | |
| 4991 /* Compare current input with back-ref in the same | |
| 4992 * line. */ | |
|
10245
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commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
4993 len = (int)(rex.reg_endp[no] - rex.reg_startp[no]); |
|
14354
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parents:
14169
diff
changeset
|
4994 if (cstrncmp(rex.reg_startp[no], rex.input, &len) != 0) |
| 180 | 4995 status = RA_NOMATCH; |
| 7 | 4996 } |
| 4997 } | |
| 4998 else /* Multi-line regexp */ | |
| 4999 { | |
|
10245
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commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
5000 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
|
5001 || rex.reg_endpos[no].lnum < 0) |
| 7 | 5002 { |
| 5003 /* Backref was not set: Match an empty string. */ | |
| 5004 len = 0; | |
| 5005 } | |
| 5006 else | |
| 5007 { | |
|
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parents:
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diff
changeset
|
5008 if (rex.reg_startpos[no].lnum == rex.lnum |
|
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parents:
14169
diff
changeset
|
5009 && rex.reg_endpos[no].lnum == rex.lnum) |
| 7 | 5010 { |
| 5011 /* Compare back-ref within the current line. */ | |
|
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commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
5012 len = rex.reg_endpos[no].col |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
5013 - rex.reg_startpos[no].col; |
|
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parents:
14169
diff
changeset
|
5014 if (cstrncmp(rex.line + rex.reg_startpos[no].col, |
|
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
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parents:
14169
diff
changeset
|
5015 rex.input, &len) != 0) |
| 180 | 5016 status = RA_NOMATCH; |
| 7 | 5017 } |
| 5018 else | |
| 5019 { | |
| 5020 /* Messy situation: Need to compare between two | |
| 5021 * lines. */ | |
|
4901
56fbf60e9476
updated for version 7.3.1196
Bram Moolenaar <bram@vim.org>
parents:
4899
diff
changeset
|
5022 int r = match_with_backref( |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
5023 rex.reg_startpos[no].lnum, |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
5024 rex.reg_startpos[no].col, |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
5025 rex.reg_endpos[no].lnum, |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
5026 rex.reg_endpos[no].col, |
|
4899
4837fd61be52
updated for version 7.3.1195
Bram Moolenaar <bram@vim.org>
parents:
4891
diff
changeset
|
5027 &len); |
|
4901
56fbf60e9476
updated for version 7.3.1196
Bram Moolenaar <bram@vim.org>
parents:
4899
diff
changeset
|
5028 |
|
56fbf60e9476
updated for version 7.3.1196
Bram Moolenaar <bram@vim.org>
parents:
4899
diff
changeset
|
5029 if (r != RA_MATCH) |
|
56fbf60e9476
updated for version 7.3.1196
Bram Moolenaar <bram@vim.org>
parents:
4899
diff
changeset
|
5030 status = r; |
| 7 | 5031 } |
| 5032 } | |
| 5033 } | |
| 5034 | |
| 5035 /* Matched the backref, skip over it. */ | |
|
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parents:
14169
diff
changeset
|
5036 rex.input += len; |
| 7 | 5037 } |
| 5038 break; | |
| 5039 | |
| 5040 #ifdef FEAT_SYN_HL | |
| 5041 case ZREF + 1: | |
| 5042 case ZREF + 2: | |
| 5043 case ZREF + 3: | |
| 5044 case ZREF + 4: | |
| 5045 case ZREF + 5: | |
| 5046 case ZREF + 6: | |
| 5047 case ZREF + 7: | |
| 5048 case ZREF + 8: | |
| 5049 case ZREF + 9: | |
| 5050 { | |
| 5051 int len; | |
| 5052 | |
| 5053 cleanup_zsubexpr(); | |
| 5054 no = op - ZREF; | |
| 5055 if (re_extmatch_in != NULL | |
| 5056 && re_extmatch_in->matches[no] != NULL) | |
| 5057 { | |
| 5058 len = (int)STRLEN(re_extmatch_in->matches[no]); | |
| 5059 if (cstrncmp(re_extmatch_in->matches[no], | |
|
14354
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patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
5060 rex.input, &len) != 0) |
| 180 | 5061 status = RA_NOMATCH; |
| 5062 else | |
|
14354
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Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
5063 rex.input += len; |
| 7 | 5064 } |
| 5065 else | |
| 5066 { | |
| 5067 /* Backref was not set: Match an empty string. */ | |
| 5068 } | |
| 5069 } | |
| 5070 break; | |
| 5071 #endif | |
| 5072 | |
| 5073 case BRANCH: | |
| 5074 { | |
| 5075 if (OP(next) != BRANCH) /* No choice. */ | |
| 5076 next = OPERAND(scan); /* Avoid recursion. */ | |
| 5077 else | |
| 5078 { | |
| 270 | 5079 rp = regstack_push(RS_BRANCH, scan); |
| 180 | 5080 if (rp == NULL) |
| 5081 status = RA_FAIL; | |
| 5082 else | |
| 5083 status = RA_BREAK; /* rest is below */ | |
| 7 | 5084 } |
| 5085 } | |
| 5086 break; | |
| 5087 | |
| 5088 case BRACE_LIMITS: | |
| 5089 { | |
| 5090 if (OP(next) == BRACE_SIMPLE) | |
| 5091 { | |
| 5092 bl_minval = OPERAND_MIN(scan); | |
| 5093 bl_maxval = OPERAND_MAX(scan); | |
| 5094 } | |
| 5095 else if (OP(next) >= BRACE_COMPLEX | |
| 5096 && OP(next) < BRACE_COMPLEX + 10) | |
| 5097 { | |
| 5098 no = OP(next) - BRACE_COMPLEX; | |
| 5099 brace_min[no] = OPERAND_MIN(scan); | |
| 5100 brace_max[no] = OPERAND_MAX(scan); | |
| 5101 brace_count[no] = 0; | |
| 5102 } | |
| 5103 else | |
| 5104 { | |
|
10359
66f1b5bf3fa6
commit https://github.com/vim/vim/commit/95f096030ed1a8afea028f2ea295d6f6a70f466f
Christian Brabandt <cb@256bit.org>
parents:
10245
diff
changeset
|
5105 internal_error("BRACE_LIMITS"); |
| 180 | 5106 status = RA_FAIL; |
| 7 | 5107 } |
| 5108 } | |
| 5109 break; | |
| 5110 | |
| 5111 case BRACE_COMPLEX + 0: | |
| 5112 case BRACE_COMPLEX + 1: | |
| 5113 case BRACE_COMPLEX + 2: | |
| 5114 case BRACE_COMPLEX + 3: | |
| 5115 case BRACE_COMPLEX + 4: | |
| 5116 case BRACE_COMPLEX + 5: | |
| 5117 case BRACE_COMPLEX + 6: | |
| 5118 case BRACE_COMPLEX + 7: | |
| 5119 case BRACE_COMPLEX + 8: | |
| 5120 case BRACE_COMPLEX + 9: | |
| 5121 { | |
| 5122 no = op - BRACE_COMPLEX; | |
| 5123 ++brace_count[no]; | |
| 5124 | |
| 5125 /* If not matched enough times yet, try one more */ | |
| 5126 if (brace_count[no] <= (brace_min[no] <= brace_max[no] | |
| 180 | 5127 ? brace_min[no] : brace_max[no])) |
| 7 | 5128 { |
| 270 | 5129 rp = regstack_push(RS_BRCPLX_MORE, scan); |
| 180 | 5130 if (rp == NULL) |
| 5131 status = RA_FAIL; | |
| 5132 else | |
| 5133 { | |
| 5134 rp->rs_no = no; | |
| 233 | 5135 reg_save(&rp->rs_un.regsave, &backpos); |
| 180 | 5136 next = OPERAND(scan); |
| 5137 /* We continue and handle the result when done. */ | |
| 5138 } | |
| 5139 break; | |
| 7 | 5140 } |
| 5141 | |
| 5142 /* If matched enough times, may try matching some more */ | |
| 5143 if (brace_min[no] <= brace_max[no]) | |
| 5144 { | |
| 5145 /* Range is the normal way around, use longest match */ | |
| 5146 if (brace_count[no] <= brace_max[no]) | |
| 5147 { | |
| 270 | 5148 rp = regstack_push(RS_BRCPLX_LONG, scan); |
| 180 | 5149 if (rp == NULL) |
| 5150 status = RA_FAIL; | |
| 5151 else | |
| 5152 { | |
| 5153 rp->rs_no = no; | |
| 233 | 5154 reg_save(&rp->rs_un.regsave, &backpos); |
| 180 | 5155 next = OPERAND(scan); |
| 5156 /* We continue and handle the result when done. */ | |
| 5157 } | |
| 7 | 5158 } |
| 5159 } | |
| 5160 else | |
| 5161 { | |
| 5162 /* Range is backwards, use shortest match first */ | |
| 5163 if (brace_count[no] <= brace_min[no]) | |
| 5164 { | |
| 270 | 5165 rp = regstack_push(RS_BRCPLX_SHORT, scan); |
| 180 | 5166 if (rp == NULL) |
| 5167 status = RA_FAIL; | |
| 5168 else | |
| 5169 { | |
| 233 | 5170 reg_save(&rp->rs_un.regsave, &backpos); |
| 180 | 5171 /* We continue and handle the result when done. */ |
| 5172 } | |
| 7 | 5173 } |
| 5174 } | |
| 5175 } | |
| 5176 break; | |
| 5177 | |
| 5178 case BRACE_SIMPLE: | |
| 5179 case STAR: | |
| 5180 case PLUS: | |
| 5181 { | |
| 180 | 5182 regstar_T rst; |
| 7 | 5183 |
| 5184 /* | |
| 5185 * Lookahead to avoid useless match attempts when we know | |
| 5186 * what character comes next. | |
| 5187 */ | |
| 5188 if (OP(next) == EXACTLY) | |
| 5189 { | |
| 180 | 5190 rst.nextb = *OPERAND(next); |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
5191 if (rex.reg_ic) |
| 7 | 5192 { |
| 1347 | 5193 if (MB_ISUPPER(rst.nextb)) |
| 5194 rst.nextb_ic = MB_TOLOWER(rst.nextb); | |
| 7 | 5195 else |
| 1347 | 5196 rst.nextb_ic = MB_TOUPPER(rst.nextb); |
| 7 | 5197 } |
| 5198 else | |
| 180 | 5199 rst.nextb_ic = rst.nextb; |
| 7 | 5200 } |
| 5201 else | |
| 5202 { | |
| 180 | 5203 rst.nextb = NUL; |
| 5204 rst.nextb_ic = NUL; | |
| 7 | 5205 } |
| 5206 if (op != BRACE_SIMPLE) | |
| 5207 { | |
| 180 | 5208 rst.minval = (op == STAR) ? 0 : 1; |
| 5209 rst.maxval = MAX_LIMIT; | |
| 7 | 5210 } |
| 5211 else | |
| 5212 { | |
| 180 | 5213 rst.minval = bl_minval; |
| 5214 rst.maxval = bl_maxval; | |
| 7 | 5215 } |
| 5216 | |
| 5217 /* | |
| 5218 * When maxval > minval, try matching as much as possible, up | |
| 5219 * to maxval. When maxval < minval, try matching at least the | |
| 5220 * minimal number (since the range is backwards, that's also | |
| 5221 * maxval!). | |
| 5222 */ | |
| 180 | 5223 rst.count = regrepeat(OPERAND(scan), rst.maxval); |
| 7 | 5224 if (got_int) |
| 180 | 5225 { |
| 5226 status = RA_FAIL; | |
| 5227 break; | |
| 5228 } | |
| 5229 if (rst.minval <= rst.maxval | |
| 5230 ? rst.count >= rst.minval : rst.count >= rst.maxval) | |
| 7 | 5231 { |
| 180 | 5232 /* It could match. Prepare for trying to match what |
| 5233 * follows. The code is below. Parameters are stored in | |
| 5234 * a regstar_T on the regstack. */ | |
| 212 | 5235 if ((long)((unsigned)regstack.ga_len >> 10) >= p_mmp) |
| 189 | 5236 { |
|
15470
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patch 8.1.0743: giving error messages is not flexible
Bram Moolenaar <Bram@vim.org>
parents:
15339
diff
changeset
|
5237 emsg(_(e_maxmempat)); |
| 189 | 5238 status = RA_FAIL; |
| 5239 } | |
| 5240 else if (ga_grow(®stack, sizeof(regstar_T)) == FAIL) | |
| 180 | 5241 status = RA_FAIL; |
| 5242 else | |
| 7 | 5243 { |
| 180 | 5244 regstack.ga_len += sizeof(regstar_T); |
| 270 | 5245 rp = regstack_push(rst.minval <= rst.maxval |
| 233 | 5246 ? RS_STAR_LONG : RS_STAR_SHORT, scan); |
| 180 | 5247 if (rp == NULL) |
| 5248 status = RA_FAIL; | |
| 5249 else | |
| 7 | 5250 { |
| 180 | 5251 *(((regstar_T *)rp) - 1) = rst; |
| 5252 status = RA_BREAK; /* skip the restore bits */ | |
| 7 | 5253 } |
| 5254 } | |
| 5255 } | |
| 5256 else | |
| 180 | 5257 status = RA_NOMATCH; |
| 5258 | |
| 7 | 5259 } |
| 180 | 5260 break; |
| 7 | 5261 |
| 5262 case NOMATCH: | |
| 5263 case MATCH: | |
| 5264 case SUBPAT: | |
| 270 | 5265 rp = regstack_push(RS_NOMATCH, scan); |
| 180 | 5266 if (rp == NULL) |
| 5267 status = RA_FAIL; | |
| 5268 else | |
| 7 | 5269 { |
| 180 | 5270 rp->rs_no = op; |
| 233 | 5271 reg_save(&rp->rs_un.regsave, &backpos); |
| 180 | 5272 next = OPERAND(scan); |
| 5273 /* We continue and handle the result when done. */ | |
| 7 | 5274 } |
| 5275 break; | |
| 5276 | |
| 5277 case BEHIND: | |
| 5278 case NOBEHIND: | |
| 180 | 5279 /* Need a bit of room to store extra positions. */ |
| 212 | 5280 if ((long)((unsigned)regstack.ga_len >> 10) >= p_mmp) |
| 189 | 5281 { |
|
15470
55ccc2d353bd
patch 8.1.0743: giving error messages is not flexible
Bram Moolenaar <Bram@vim.org>
parents:
15339
diff
changeset
|
5282 emsg(_(e_maxmempat)); |
| 189 | 5283 status = RA_FAIL; |
| 5284 } | |
| 5285 else if (ga_grow(®stack, sizeof(regbehind_T)) == FAIL) | |
| 180 | 5286 status = RA_FAIL; |
| 5287 else | |
| 7 | 5288 { |
| 180 | 5289 regstack.ga_len += sizeof(regbehind_T); |
| 270 | 5290 rp = regstack_push(RS_BEHIND1, scan); |
| 180 | 5291 if (rp == NULL) |
| 5292 status = RA_FAIL; | |
| 5293 else | |
| 7 | 5294 { |
| 1579 | 5295 /* Need to save the subexpr to be able to restore them |
| 5296 * when there is a match but we don't use it. */ | |
| 5297 save_subexpr(((regbehind_T *)rp) - 1); | |
| 5298 | |
| 180 | 5299 rp->rs_no = op; |
| 233 | 5300 reg_save(&rp->rs_un.regsave, &backpos); |
| 180 | 5301 /* First try if what follows matches. If it does then we |
| 5302 * check the behind match by looping. */ | |
| 7 | 5303 } |
| 5304 } | |
| 180 | 5305 break; |
| 7 | 5306 |
| 5307 case BHPOS: | |
| 5308 if (REG_MULTI) | |
| 5309 { | |
|
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patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
5310 if (behind_pos.rs_u.pos.col != (colnr_T)(rex.input - rex.line) |
|
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
5311 || behind_pos.rs_u.pos.lnum != rex.lnum) |
| 180 | 5312 status = RA_NOMATCH; |
| 7 | 5313 } |
|
14354
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patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
5314 else if (behind_pos.rs_u.ptr != rex.input) |
| 180 | 5315 status = RA_NOMATCH; |
| 7 | 5316 break; |
| 5317 | |
| 5318 case NEWL: | |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
5319 if ((c != NUL || !REG_MULTI || rex.lnum > rex.reg_maxline |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
5320 || rex.reg_line_lbr) |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
5321 && (c != '\n' || !rex.reg_line_lbr)) |
| 180 | 5322 status = RA_NOMATCH; |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
5323 else if (rex.reg_line_lbr) |
| 7 | 5324 ADVANCE_REGINPUT(); |
| 5325 else | |
| 5326 reg_nextline(); | |
| 5327 break; | |
| 5328 | |
| 5329 case END: | |
| 180 | 5330 status = RA_MATCH; /* Success! */ |
| 5331 break; | |
| 7 | 5332 |
| 5333 default: | |
|
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patch 8.1.0743: giving error messages is not flexible
Bram Moolenaar <Bram@vim.org>
parents:
15339
diff
changeset
|
5334 emsg(_(e_re_corr)); |
| 7 | 5335 #ifdef DEBUG |
| 5336 printf("Illegal op code %d\n", op); | |
| 5337 #endif | |
| 180 | 5338 status = RA_FAIL; |
| 5339 break; | |
| 7 | 5340 } |
| 5341 } | |
| 5342 | |
| 180 | 5343 /* If we can't continue sequentially, break the inner loop. */ |
| 5344 if (status != RA_CONT) | |
| 5345 break; | |
| 5346 | |
| 5347 /* Continue in inner loop, advance to next item. */ | |
| 7 | 5348 scan = next; |
| 180 | 5349 |
| 5350 } /* end of inner loop */ | |
| 7 | 5351 |
| 5352 /* | |
| 180 | 5353 * If there is something on the regstack execute the code for the state. |
| 233 | 5354 * If the state is popped then loop and use the older state. |
| 7 | 5355 */ |
| 180 | 5356 while (regstack.ga_len > 0 && status != RA_FAIL) |
| 5357 { | |
| 5358 rp = (regitem_T *)((char *)regstack.ga_data + regstack.ga_len) - 1; | |
| 5359 switch (rp->rs_state) | |
| 5360 { | |
| 5361 case RS_NOPEN: | |
| 5362 /* Result is passed on as-is, simply pop the state. */ | |
| 270 | 5363 regstack_pop(&scan); |
| 180 | 5364 break; |
| 5365 | |
| 5366 case RS_MOPEN: | |
| 5367 /* Pop the state. Restore pointers when there is no match. */ | |
| 5368 if (status == RA_NOMATCH) | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
5369 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
|
5370 &rex.reg_startp[rp->rs_no]); |
| 270 | 5371 regstack_pop(&scan); |
| 180 | 5372 break; |
| 5373 | |
| 5374 #ifdef FEAT_SYN_HL | |
| 5375 case RS_ZOPEN: | |
| 5376 /* Pop the state. Restore pointers when there is no match. */ | |
| 5377 if (status == RA_NOMATCH) | |
| 5378 restore_se(&rp->rs_un.sesave, ®_startzpos[rp->rs_no], | |
| 5379 ®_startzp[rp->rs_no]); | |
| 270 | 5380 regstack_pop(&scan); |
| 180 | 5381 break; |
| 5382 #endif | |
| 5383 | |
| 5384 case RS_MCLOSE: | |
| 5385 /* Pop the state. Restore pointers when there is no match. */ | |
| 5386 if (status == RA_NOMATCH) | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
5387 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
|
5388 &rex.reg_endp[rp->rs_no]); |
| 270 | 5389 regstack_pop(&scan); |
| 180 | 5390 break; |
| 5391 | |
| 5392 #ifdef FEAT_SYN_HL | |
| 5393 case RS_ZCLOSE: | |
| 5394 /* Pop the state. Restore pointers when there is no match. */ | |
| 5395 if (status == RA_NOMATCH) | |
| 5396 restore_se(&rp->rs_un.sesave, ®_endzpos[rp->rs_no], | |
| 5397 ®_endzp[rp->rs_no]); | |
| 270 | 5398 regstack_pop(&scan); |
| 180 | 5399 break; |
| 5400 #endif | |
| 5401 | |
| 5402 case RS_BRANCH: | |
| 5403 if (status == RA_MATCH) | |
| 5404 /* this branch matched, use it */ | |
| 270 | 5405 regstack_pop(&scan); |
| 180 | 5406 else |
| 5407 { | |
| 5408 if (status != RA_BREAK) | |
| 5409 { | |
| 5410 /* After a non-matching branch: try next one. */ | |
| 233 | 5411 reg_restore(&rp->rs_un.regsave, &backpos); |
| 180 | 5412 scan = rp->rs_scan; |
| 5413 } | |
| 5414 if (scan == NULL || OP(scan) != BRANCH) | |
| 5415 { | |
| 5416 /* no more branches, didn't find a match */ | |
| 5417 status = RA_NOMATCH; | |
| 270 | 5418 regstack_pop(&scan); |
| 180 | 5419 } |
| 5420 else | |
| 5421 { | |
| 5422 /* Prepare to try a branch. */ | |
| 5423 rp->rs_scan = regnext(scan); | |
| 233 | 5424 reg_save(&rp->rs_un.regsave, &backpos); |
| 180 | 5425 scan = OPERAND(scan); |
| 5426 } | |
| 5427 } | |
| 5428 break; | |
| 5429 | |
| 5430 case RS_BRCPLX_MORE: | |
| 5431 /* Pop the state. Restore pointers when there is no match. */ | |
| 5432 if (status == RA_NOMATCH) | |
| 5433 { | |
| 233 | 5434 reg_restore(&rp->rs_un.regsave, &backpos); |
| 180 | 5435 --brace_count[rp->rs_no]; /* decrement match count */ |
| 5436 } | |
| 270 | 5437 regstack_pop(&scan); |
| 180 | 5438 break; |
| 5439 | |
| 5440 case RS_BRCPLX_LONG: | |
| 5441 /* Pop the state. Restore pointers when there is no match. */ | |
| 5442 if (status == RA_NOMATCH) | |
| 5443 { | |
| 5444 /* There was no match, but we did find enough matches. */ | |
| 233 | 5445 reg_restore(&rp->rs_un.regsave, &backpos); |
| 180 | 5446 --brace_count[rp->rs_no]; |
| 5447 /* continue with the items after "\{}" */ | |
| 5448 status = RA_CONT; | |
| 5449 } | |
| 270 | 5450 regstack_pop(&scan); |
| 180 | 5451 if (status == RA_CONT) |
| 5452 scan = regnext(scan); | |
| 5453 break; | |
| 5454 | |
| 5455 case RS_BRCPLX_SHORT: | |
| 5456 /* Pop the state. Restore pointers when there is no match. */ | |
| 5457 if (status == RA_NOMATCH) | |
| 5458 /* There was no match, try to match one more item. */ | |
| 233 | 5459 reg_restore(&rp->rs_un.regsave, &backpos); |
| 270 | 5460 regstack_pop(&scan); |
| 180 | 5461 if (status == RA_NOMATCH) |
| 5462 { | |
| 5463 scan = OPERAND(scan); | |
| 5464 status = RA_CONT; | |
| 5465 } | |
| 5466 break; | |
| 5467 | |
| 5468 case RS_NOMATCH: | |
| 5469 /* Pop the state. If the operand matches for NOMATCH or | |
| 5470 * doesn't match for MATCH/SUBPAT, we fail. Otherwise backup, | |
| 5471 * except for SUBPAT, and continue with the next item. */ | |
| 5472 if (status == (rp->rs_no == NOMATCH ? RA_MATCH : RA_NOMATCH)) | |
| 5473 status = RA_NOMATCH; | |
| 5474 else | |
| 5475 { | |
| 5476 status = RA_CONT; | |
| 233 | 5477 if (rp->rs_no != SUBPAT) /* zero-width */ |
| 5478 reg_restore(&rp->rs_un.regsave, &backpos); | |
| 180 | 5479 } |
| 270 | 5480 regstack_pop(&scan); |
| 180 | 5481 if (status == RA_CONT) |
| 5482 scan = regnext(scan); | |
| 5483 break; | |
| 5484 | |
| 5485 case RS_BEHIND1: | |
| 5486 if (status == RA_NOMATCH) | |
| 5487 { | |
| 270 | 5488 regstack_pop(&scan); |
| 180 | 5489 regstack.ga_len -= sizeof(regbehind_T); |
| 5490 } | |
| 5491 else | |
| 5492 { | |
| 5493 /* The stuff after BEHIND/NOBEHIND matches. Now try if | |
| 5494 * the behind part does (not) match before the current | |
| 5495 * position in the input. This must be done at every | |
| 5496 * position in the input and checking if the match ends at | |
| 5497 * the current position. */ | |
| 5498 | |
| 5499 /* save the position after the found match for next */ | |
| 233 | 5500 reg_save(&(((regbehind_T *)rp) - 1)->save_after, &backpos); |
| 180 | 5501 |
|
4579
7a2be4a39423
updated for version 7.3.1037
Bram Moolenaar <bram@vim.org>
parents:
4505
diff
changeset
|
5502 /* Start looking for a match with operand at the current |
| 1209 | 5503 * position. Go back one character until we find the |
| 180 | 5504 * result, hitting the start of the line or the previous |
| 5505 * line (for multi-line matching). | |
| 5506 * Set behind_pos to where the match should end, BHPOS | |
| 5507 * will match it. Save the current value. */ | |
| 5508 (((regbehind_T *)rp) - 1)->save_behind = behind_pos; | |
| 5509 behind_pos = rp->rs_un.regsave; | |
| 5510 | |
| 5511 rp->rs_state = RS_BEHIND2; | |
| 5512 | |
| 233 | 5513 reg_restore(&rp->rs_un.regsave, &backpos); |
|
4579
7a2be4a39423
updated for version 7.3.1037
Bram Moolenaar <bram@vim.org>
parents:
4505
diff
changeset
|
5514 scan = OPERAND(rp->rs_scan) + 4; |
| 180 | 5515 } |
| 5516 break; | |
| 5517 | |
| 5518 case RS_BEHIND2: | |
| 5519 /* | |
| 5520 * Looping for BEHIND / NOBEHIND match. | |
| 5521 */ | |
| 5522 if (status == RA_MATCH && reg_save_equal(&behind_pos)) | |
| 5523 { | |
| 5524 /* found a match that ends where "next" started */ | |
| 5525 behind_pos = (((regbehind_T *)rp) - 1)->save_behind; | |
| 5526 if (rp->rs_no == BEHIND) | |
| 233 | 5527 reg_restore(&(((regbehind_T *)rp) - 1)->save_after, |
| 5528 &backpos); | |
| 180 | 5529 else |
| 1579 | 5530 { |
| 5531 /* But we didn't want a match. Need to restore the | |
| 5532 * subexpr, because what follows matched, so they have | |
| 5533 * been set. */ | |
| 180 | 5534 status = RA_NOMATCH; |
| 1579 | 5535 restore_subexpr(((regbehind_T *)rp) - 1); |
| 5536 } | |
| 270 | 5537 regstack_pop(&scan); |
| 180 | 5538 regstack.ga_len -= sizeof(regbehind_T); |
| 5539 } | |
| 5540 else | |
| 5541 { | |
|
4579
7a2be4a39423
updated for version 7.3.1037
Bram Moolenaar <bram@vim.org>
parents:
4505
diff
changeset
|
5542 long limit; |
|
7a2be4a39423
updated for version 7.3.1037
Bram Moolenaar <bram@vim.org>
parents:
4505
diff
changeset
|
5543 |
| 1579 | 5544 /* No match or a match that doesn't end where we want it: Go |
| 5545 * back one character. May go to previous line once. */ | |
| 180 | 5546 no = OK; |
|
4579
7a2be4a39423
updated for version 7.3.1037
Bram Moolenaar <bram@vim.org>
parents:
4505
diff
changeset
|
5547 limit = OPERAND_MIN(rp->rs_scan); |
| 180 | 5548 if (REG_MULTI) |
| 5549 { | |
|
4682
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
5550 if (limit > 0 |
|
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
5551 && ((rp->rs_un.regsave.rs_u.pos.lnum |
|
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
5552 < behind_pos.rs_u.pos.lnum |
|
14354
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patch 8.1.0192: executing regexp recursively fails with a crash
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parents:
14169
diff
changeset
|
5553 ? (colnr_T)STRLEN(rex.line) |
|
4682
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
5554 : behind_pos.rs_u.pos.col) |
|
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
5555 - 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
|
5556 no = FAIL; |
|
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
5557 else if (rp->rs_un.regsave.rs_u.pos.col == 0) |
| 180 | 5558 { |
| 5559 if (rp->rs_un.regsave.rs_u.pos.lnum | |
| 5560 < behind_pos.rs_u.pos.lnum | |
| 5561 || reg_getline( | |
| 5562 --rp->rs_un.regsave.rs_u.pos.lnum) | |
| 5563 == NULL) | |
| 5564 no = FAIL; | |
| 5565 else | |
| 5566 { | |
| 233 | 5567 reg_restore(&rp->rs_un.regsave, &backpos); |
| 180 | 5568 rp->rs_un.regsave.rs_u.pos.col = |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
5569 (colnr_T)STRLEN(rex.line); |
| 180 | 5570 } |
| 5571 } | |
| 5572 else | |
|
4579
7a2be4a39423
updated for version 7.3.1037
Bram Moolenaar <bram@vim.org>
parents:
4505
diff
changeset
|
5573 { |
| 4176 | 5574 #ifdef FEAT_MBYTE |
|
4579
7a2be4a39423
updated for version 7.3.1037
Bram Moolenaar <bram@vim.org>
parents:
4505
diff
changeset
|
5575 if (has_mbyte) |
|
13286
a90bc1e28cbb
patch 8.0.1517: invalid memory acces with pattern using look-behind match
Christian Brabandt <cb@256bit.org>
parents:
13244
diff
changeset
|
5576 { |
|
a90bc1e28cbb
patch 8.0.1517: invalid memory acces with pattern using look-behind match
Christian Brabandt <cb@256bit.org>
parents:
13244
diff
changeset
|
5577 char_u *line = |
|
15339
417bf10a756d
patch 8.1.0677: look-behind match may use the wrong line number
Bram Moolenaar <Bram@vim.org>
parents:
15306
diff
changeset
|
5578 reg_getline(rp->rs_un.regsave.rs_u.pos.lnum); |
|
13286
a90bc1e28cbb
patch 8.0.1517: invalid memory acces with pattern using look-behind match
Christian Brabandt <cb@256bit.org>
parents:
13244
diff
changeset
|
5579 |
|
4579
7a2be4a39423
updated for version 7.3.1037
Bram Moolenaar <bram@vim.org>
parents:
4505
diff
changeset
|
5580 rp->rs_un.regsave.rs_u.pos.col -= |
|
13286
a90bc1e28cbb
patch 8.0.1517: invalid memory acces with pattern using look-behind match
Christian Brabandt <cb@256bit.org>
parents:
13244
diff
changeset
|
5581 (*mb_head_off)(line, line |
| 4176 | 5582 + rp->rs_un.regsave.rs_u.pos.col - 1) + 1; |
|
13286
a90bc1e28cbb
patch 8.0.1517: invalid memory acces with pattern using look-behind match
Christian Brabandt <cb@256bit.org>
parents:
13244
diff
changeset
|
5583 } |
|
4579
7a2be4a39423
updated for version 7.3.1037
Bram Moolenaar <bram@vim.org>
parents:
4505
diff
changeset
|
5584 else |
|
7a2be4a39423
updated for version 7.3.1037
Bram Moolenaar <bram@vim.org>
parents:
4505
diff
changeset
|
5585 #endif |
|
7a2be4a39423
updated for version 7.3.1037
Bram Moolenaar <bram@vim.org>
parents:
4505
diff
changeset
|
5586 --rp->rs_un.regsave.rs_u.pos.col; |
|
7a2be4a39423
updated for version 7.3.1037
Bram Moolenaar <bram@vim.org>
parents:
4505
diff
changeset
|
5587 } |
| 180 | 5588 } |
| 5589 else | |
| 5590 { | |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
5591 if (rp->rs_un.regsave.rs_u.ptr == rex.line) |
| 180 | 5592 no = FAIL; |
| 5593 else | |
|
4579
7a2be4a39423
updated for version 7.3.1037
Bram Moolenaar <bram@vim.org>
parents:
4505
diff
changeset
|
5594 { |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
5595 MB_PTR_BACK(rex.line, rp->rs_un.regsave.rs_u.ptr); |
|
4579
7a2be4a39423
updated for version 7.3.1037
Bram Moolenaar <bram@vim.org>
parents:
4505
diff
changeset
|
5596 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
|
5597 - rp->rs_un.regsave.rs_u.ptr) > limit) |
|
7a2be4a39423
updated for version 7.3.1037
Bram Moolenaar <bram@vim.org>
parents:
4505
diff
changeset
|
5598 no = FAIL; |
|
7a2be4a39423
updated for version 7.3.1037
Bram Moolenaar <bram@vim.org>
parents:
4505
diff
changeset
|
5599 } |
| 180 | 5600 } |
| 5601 if (no == OK) | |
| 5602 { | |
| 5603 /* Advanced, prepare for finding match again. */ | |
| 233 | 5604 reg_restore(&rp->rs_un.regsave, &backpos); |
|
4579
7a2be4a39423
updated for version 7.3.1037
Bram Moolenaar <bram@vim.org>
parents:
4505
diff
changeset
|
5605 scan = OPERAND(rp->rs_scan) + 4; |
| 1579 | 5606 if (status == RA_MATCH) |
| 5607 { | |
| 5608 /* We did match, so subexpr may have been changed, | |
| 5609 * need to restore them for the next try. */ | |
| 5610 status = RA_NOMATCH; | |
| 5611 restore_subexpr(((regbehind_T *)rp) - 1); | |
| 5612 } | |
| 180 | 5613 } |
| 5614 else | |
| 5615 { | |
| 5616 /* Can't advance. For NOBEHIND that's a match. */ | |
| 5617 behind_pos = (((regbehind_T *)rp) - 1)->save_behind; | |
| 5618 if (rp->rs_no == NOBEHIND) | |
| 5619 { | |
| 233 | 5620 reg_restore(&(((regbehind_T *)rp) - 1)->save_after, |
| 5621 &backpos); | |
| 180 | 5622 status = RA_MATCH; |
| 5623 } | |
| 5624 else | |
| 1579 | 5625 { |
| 5626 /* We do want a proper match. Need to restore the | |
| 5627 * subexpr if we had a match, because they may have | |
| 5628 * been set. */ | |
| 5629 if (status == RA_MATCH) | |
| 5630 { | |
| 5631 status = RA_NOMATCH; | |
| 5632 restore_subexpr(((regbehind_T *)rp) - 1); | |
| 5633 } | |
| 5634 } | |
| 270 | 5635 regstack_pop(&scan); |
| 180 | 5636 regstack.ga_len -= sizeof(regbehind_T); |
| 5637 } | |
| 5638 } | |
| 5639 break; | |
| 5640 | |
| 5641 case RS_STAR_LONG: | |
| 5642 case RS_STAR_SHORT: | |
| 5643 { | |
| 5644 regstar_T *rst = ((regstar_T *)rp) - 1; | |
| 5645 | |
| 5646 if (status == RA_MATCH) | |
| 5647 { | |
| 270 | 5648 regstack_pop(&scan); |
| 180 | 5649 regstack.ga_len -= sizeof(regstar_T); |
| 5650 break; | |
| 5651 } | |
| 5652 | |
| 5653 /* Tried once already, restore input pointers. */ | |
| 5654 if (status != RA_BREAK) | |
| 233 | 5655 reg_restore(&rp->rs_un.regsave, &backpos); |
| 180 | 5656 |
| 5657 /* Repeat until we found a position where it could match. */ | |
| 5658 for (;;) | |
| 5659 { | |
| 5660 if (status != RA_BREAK) | |
| 5661 { | |
| 5662 /* Tried first position already, advance. */ | |
| 5663 if (rp->rs_state == RS_STAR_LONG) | |
| 5664 { | |
| 685 | 5665 /* Trying for longest match, but couldn't or |
| 5666 * didn't match -- back up one char. */ | |
| 180 | 5667 if (--rst->count < rst->minval) |
| 5668 break; | |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
5669 if (rex.input == rex.line) |
| 180 | 5670 { |
| 5671 /* backup to last char of previous line */ | |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
5672 --rex.lnum; |
|
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
5673 rex.line = reg_getline(rex.lnum); |
| 180 | 5674 /* Just in case regrepeat() didn't count |
| 5675 * right. */ | |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
5676 if (rex.line == NULL) |
| 180 | 5677 break; |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
5678 rex.input = rex.line + STRLEN(rex.line); |
| 180 | 5679 fast_breakcheck(); |
| 5680 } | |
| 5681 else | |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
5682 MB_PTR_BACK(rex.line, rex.input); |
| 180 | 5683 } |
| 5684 else | |
| 5685 { | |
| 5686 /* Range is backwards, use shortest match first. | |
| 5687 * Careful: maxval and minval are exchanged! | |
| 5688 * Couldn't or didn't match: try advancing one | |
| 5689 * char. */ | |
| 5690 if (rst->count == rst->minval | |
| 5691 || regrepeat(OPERAND(rp->rs_scan), 1L) == 0) | |
| 5692 break; | |
| 5693 ++rst->count; | |
| 5694 } | |
| 5695 if (got_int) | |
| 5696 break; | |
| 5697 } | |
| 5698 else | |
| 5699 status = RA_NOMATCH; | |
| 5700 | |
| 5701 /* If it could match, try it. */ | |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
5702 if (rst->nextb == NUL || *rex.input == rst->nextb |
|
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
5703 || *rex.input == rst->nextb_ic) |
| 180 | 5704 { |
| 233 | 5705 reg_save(&rp->rs_un.regsave, &backpos); |
| 180 | 5706 scan = regnext(rp->rs_scan); |
| 5707 status = RA_CONT; | |
| 5708 break; | |
| 5709 } | |
| 5710 } | |
| 5711 if (status != RA_CONT) | |
| 5712 { | |
| 5713 /* Failed. */ | |
| 270 | 5714 regstack_pop(&scan); |
| 180 | 5715 regstack.ga_len -= sizeof(regstar_T); |
| 5716 status = RA_NOMATCH; | |
| 5717 } | |
| 5718 } | |
| 5719 break; | |
| 5720 } | |
| 5721 | |
| 685 | 5722 /* If we want to continue the inner loop or didn't pop a state |
| 5723 * continue matching loop */ | |
| 180 | 5724 if (status == RA_CONT || rp == (regitem_T *) |
| 5725 ((char *)regstack.ga_data + regstack.ga_len) - 1) | |
| 5726 break; | |
| 5727 } | |
| 5728 | |
| 189 | 5729 /* May need to continue with the inner loop, starting at "scan". */ |
| 180 | 5730 if (status == RA_CONT) |
| 5731 continue; | |
| 5732 | |
| 5733 /* | |
| 5734 * If the regstack is empty or something failed we are done. | |
| 5735 */ | |
| 5736 if (regstack.ga_len == 0 || status == RA_FAIL) | |
| 5737 { | |
| 5738 if (scan == NULL) | |
| 5739 { | |
| 5740 /* | |
| 5741 * We get here only if there's trouble -- normally "case END" is | |
| 5742 * the terminating point. | |
| 5743 */ | |
|
15470
55ccc2d353bd
patch 8.1.0743: giving error messages is not flexible
Bram Moolenaar <Bram@vim.org>
parents:
15339
diff
changeset
|
5744 emsg(_(e_re_corr)); |
| 7 | 5745 #ifdef DEBUG |
| 180 | 5746 printf("Premature EOL\n"); |
| 7 | 5747 #endif |
| 180 | 5748 } |
| 5749 return (status == RA_MATCH); | |
| 5750 } | |
| 5751 | |
| 5752 } /* End of loop until the regstack is empty. */ | |
| 5753 | |
| 5754 /* NOTREACHED */ | |
| 5755 } | |
| 5756 | |
| 5757 /* | |
| 5758 * Push an item onto the regstack. | |
| 5759 * Returns pointer to new item. Returns NULL when out of memory. | |
| 5760 */ | |
| 5761 static regitem_T * | |
|
7833
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
5762 regstack_push(regstate_T state, char_u *scan) |
| 180 | 5763 { |
| 5764 regitem_T *rp; | |
| 5765 | |
| 270 | 5766 if ((long)((unsigned)regstack.ga_len >> 10) >= p_mmp) |
| 189 | 5767 { |
|
15470
55ccc2d353bd
patch 8.1.0743: giving error messages is not flexible
Bram Moolenaar <Bram@vim.org>
parents:
15339
diff
changeset
|
5768 emsg(_(e_maxmempat)); |
| 189 | 5769 return NULL; |
| 5770 } | |
| 270 | 5771 if (ga_grow(®stack, sizeof(regitem_T)) == FAIL) |
| 180 | 5772 return NULL; |
| 5773 | |
| 270 | 5774 rp = (regitem_T *)((char *)regstack.ga_data + regstack.ga_len); |
| 180 | 5775 rp->rs_state = state; |
| 5776 rp->rs_scan = scan; | |
| 5777 | |
| 270 | 5778 regstack.ga_len += sizeof(regitem_T); |
| 180 | 5779 return rp; |
| 5780 } | |
| 5781 | |
| 5782 /* | |
| 5783 * Pop an item from the regstack. | |
| 5784 */ | |
| 5785 static void | |
|
7833
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
5786 regstack_pop(char_u **scan) |
| 180 | 5787 { |
| 5788 regitem_T *rp; | |
| 5789 | |
| 270 | 5790 rp = (regitem_T *)((char *)regstack.ga_data + regstack.ga_len) - 1; |
| 180 | 5791 *scan = rp->rs_scan; |
| 5792 | |
| 270 | 5793 regstack.ga_len -= sizeof(regitem_T); |
| 7 | 5794 } |
| 5795 | |
| 5796 /* | |
| 5797 * regrepeat - repeatedly match something simple, return how many. | |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
5798 * Advances rex.input (and rex.lnum) to just after the matched chars. |
| 7 | 5799 */ |
| 5800 static int | |
|
7833
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
5801 regrepeat( |
|
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
5802 char_u *p, |
|
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
5803 long maxcount) /* maximum number of matches allowed */ |
| 7 | 5804 { |
| 5805 long count = 0; | |
| 5806 char_u *scan; | |
| 5807 char_u *opnd; | |
| 5808 int mask; | |
| 5809 int testval = 0; | |
| 5810 | |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
5811 scan = rex.input; /* Make local copy of rex.input for speed. */ |
| 7 | 5812 opnd = OPERAND(p); |
| 5813 switch (OP(p)) | |
| 5814 { | |
| 5815 case ANY: | |
| 5816 case ANY + ADD_NL: | |
| 5817 while (count < maxcount) | |
| 5818 { | |
| 5819 /* Matching anything means we continue until end-of-line (or | |
| 5820 * end-of-file for ANY + ADD_NL), only limited by maxcount. */ | |
| 5821 while (*scan != NUL && count < maxcount) | |
| 5822 { | |
| 5823 ++count; | |
|
11127
506f5d8b7d8b
patch 8.0.0451: some macros are in lower case
Christian Brabandt <cb@256bit.org>
parents:
11121
diff
changeset
|
5824 MB_PTR_ADV(scan); |
| 7 | 5825 } |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
5826 if (!REG_MULTI || !WITH_NL(OP(p)) || rex.lnum > rex.reg_maxline |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
5827 || rex.reg_line_lbr || count == maxcount) |
| 7 | 5828 break; |
| 5829 ++count; /* count the line-break */ | |
| 5830 reg_nextline(); | |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
5831 scan = rex.input; |
| 7 | 5832 if (got_int) |
| 5833 break; | |
| 5834 } | |
| 5835 break; | |
| 5836 | |
| 5837 case IDENT: | |
| 5838 case IDENT + ADD_NL: | |
| 5839 testval = TRUE; | |
|
12674
e769c912fcd9
patch 8.0.1215: newer gcc warns for implicit fallthrough
Christian Brabandt <cb@256bit.org>
parents:
11529
diff
changeset
|
5840 /* FALLTHROUGH */ |
| 7 | 5841 case SIDENT: |
| 5842 case SIDENT + ADD_NL: | |
| 5843 while (count < maxcount) | |
| 5844 { | |
| 4466 | 5845 if (vim_isIDc(PTR2CHAR(scan)) && (testval || !VIM_ISDIGIT(*scan))) |
| 7 | 5846 { |
|
11127
506f5d8b7d8b
patch 8.0.0451: some macros are in lower case
Christian Brabandt <cb@256bit.org>
parents:
11121
diff
changeset
|
5847 MB_PTR_ADV(scan); |
| 7 | 5848 } |
| 5849 else if (*scan == NUL) | |
| 5850 { | |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
5851 if (!REG_MULTI || !WITH_NL(OP(p)) || rex.lnum > rex.reg_maxline |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
5852 || rex.reg_line_lbr) |
| 7 | 5853 break; |
| 5854 reg_nextline(); | |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
5855 scan = rex.input; |
| 7 | 5856 if (got_int) |
| 5857 break; | |
| 5858 } | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
5859 else if (rex.reg_line_lbr && *scan == '\n' && WITH_NL(OP(p))) |
| 7 | 5860 ++scan; |
| 5861 else | |
| 5862 break; | |
| 5863 ++count; | |
| 5864 } | |
| 5865 break; | |
| 5866 | |
| 5867 case KWORD: | |
| 5868 case KWORD + ADD_NL: | |
| 5869 testval = TRUE; | |
|
12674
e769c912fcd9
patch 8.0.1215: newer gcc warns for implicit fallthrough
Christian Brabandt <cb@256bit.org>
parents:
11529
diff
changeset
|
5870 /* FALLTHROUGH */ |
| 7 | 5871 case SKWORD: |
| 5872 case SKWORD + ADD_NL: | |
| 5873 while (count < maxcount) | |
| 5874 { | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
5875 if (vim_iswordp_buf(scan, rex.reg_buf) |
| 4069 | 5876 && (testval || !VIM_ISDIGIT(*scan))) |
| 7 | 5877 { |
|
11127
506f5d8b7d8b
patch 8.0.0451: some macros are in lower case
Christian Brabandt <cb@256bit.org>
parents:
11121
diff
changeset
|
5878 MB_PTR_ADV(scan); |
| 7 | 5879 } |
| 5880 else if (*scan == NUL) | |
| 5881 { | |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
5882 if (!REG_MULTI || !WITH_NL(OP(p)) || rex.lnum > rex.reg_maxline |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
5883 || rex.reg_line_lbr) |
| 7 | 5884 break; |
| 5885 reg_nextline(); | |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
5886 scan = rex.input; |
| 7 | 5887 if (got_int) |
| 5888 break; | |
| 5889 } | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
5890 else if (rex.reg_line_lbr && *scan == '\n' && WITH_NL(OP(p))) |
| 7 | 5891 ++scan; |
| 5892 else | |
| 5893 break; | |
| 5894 ++count; | |
| 5895 } | |
| 5896 break; | |
| 5897 | |
| 5898 case FNAME: | |
| 5899 case FNAME + ADD_NL: | |
| 5900 testval = TRUE; | |
|
12674
e769c912fcd9
patch 8.0.1215: newer gcc warns for implicit fallthrough
Christian Brabandt <cb@256bit.org>
parents:
11529
diff
changeset
|
5901 /* FALLTHROUGH */ |
| 7 | 5902 case SFNAME: |
| 5903 case SFNAME + ADD_NL: | |
| 5904 while (count < maxcount) | |
| 5905 { | |
| 4466 | 5906 if (vim_isfilec(PTR2CHAR(scan)) && (testval || !VIM_ISDIGIT(*scan))) |
| 7 | 5907 { |
|
11127
506f5d8b7d8b
patch 8.0.0451: some macros are in lower case
Christian Brabandt <cb@256bit.org>
parents:
11121
diff
changeset
|
5908 MB_PTR_ADV(scan); |
| 7 | 5909 } |
| 5910 else if (*scan == NUL) | |
| 5911 { | |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
5912 if (!REG_MULTI || !WITH_NL(OP(p)) || rex.lnum > rex.reg_maxline |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
5913 || rex.reg_line_lbr) |
| 7 | 5914 break; |
| 5915 reg_nextline(); | |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
5916 scan = rex.input; |
| 7 | 5917 if (got_int) |
| 5918 break; | |
| 5919 } | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
5920 else if (rex.reg_line_lbr && *scan == '\n' && WITH_NL(OP(p))) |
| 7 | 5921 ++scan; |
| 5922 else | |
| 5923 break; | |
| 5924 ++count; | |
| 5925 } | |
| 5926 break; | |
| 5927 | |
| 5928 case PRINT: | |
| 5929 case PRINT + ADD_NL: | |
| 5930 testval = TRUE; | |
|
12674
e769c912fcd9
patch 8.0.1215: newer gcc warns for implicit fallthrough
Christian Brabandt <cb@256bit.org>
parents:
11529
diff
changeset
|
5931 /* FALLTHROUGH */ |
| 7 | 5932 case SPRINT: |
| 5933 case SPRINT + ADD_NL: | |
| 5934 while (count < maxcount) | |
| 5935 { | |
| 5936 if (*scan == NUL) | |
| 5937 { | |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
5938 if (!REG_MULTI || !WITH_NL(OP(p)) || rex.lnum > rex.reg_maxline |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
5939 || rex.reg_line_lbr) |
| 7 | 5940 break; |
| 5941 reg_nextline(); | |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
5942 scan = rex.input; |
| 7 | 5943 if (got_int) |
| 5944 break; | |
| 5945 } | |
|
5221
9982ec574beb
updated for version 7.4a.036
Bram Moolenaar <bram@vim.org>
parents:
4901
diff
changeset
|
5946 else if (vim_isprintc(PTR2CHAR(scan)) == 1 |
|
9982ec574beb
updated for version 7.4a.036
Bram Moolenaar <bram@vim.org>
parents:
4901
diff
changeset
|
5947 && (testval || !VIM_ISDIGIT(*scan))) |
| 7 | 5948 { |
|
11127
506f5d8b7d8b
patch 8.0.0451: some macros are in lower case
Christian Brabandt <cb@256bit.org>
parents:
11121
diff
changeset
|
5949 MB_PTR_ADV(scan); |
| 7 | 5950 } |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
5951 else if (rex.reg_line_lbr && *scan == '\n' && WITH_NL(OP(p))) |
| 7 | 5952 ++scan; |
| 5953 else | |
| 5954 break; | |
| 5955 ++count; | |
| 5956 } | |
| 5957 break; | |
| 5958 | |
| 5959 case WHITE: | |
| 5960 case WHITE + ADD_NL: | |
| 5961 testval = mask = RI_WHITE; | |
| 5962 do_class: | |
| 5963 while (count < maxcount) | |
| 5964 { | |
| 5965 #ifdef FEAT_MBYTE | |
| 5966 int l; | |
| 5967 #endif | |
| 5968 if (*scan == NUL) | |
| 5969 { | |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
5970 if (!REG_MULTI || !WITH_NL(OP(p)) || rex.lnum > rex.reg_maxline |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
5971 || rex.reg_line_lbr) |
| 7 | 5972 break; |
| 5973 reg_nextline(); | |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
5974 scan = rex.input; |
| 7 | 5975 if (got_int) |
| 5976 break; | |
| 5977 } | |
| 5978 #ifdef FEAT_MBYTE | |
| 474 | 5979 else if (has_mbyte && (l = (*mb_ptr2len)(scan)) > 1) |
| 7 | 5980 { |
| 5981 if (testval != 0) | |
| 5982 break; | |
| 5983 scan += l; | |
| 5984 } | |
| 5985 #endif | |
| 5986 else if ((class_tab[*scan] & mask) == testval) | |
| 5987 ++scan; | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
5988 else if (rex.reg_line_lbr && *scan == '\n' && WITH_NL(OP(p))) |
| 7 | 5989 ++scan; |
| 5990 else | |
| 5991 break; | |
| 5992 ++count; | |
| 5993 } | |
| 5994 break; | |
| 5995 | |
| 5996 case NWHITE: | |
| 5997 case NWHITE + ADD_NL: | |
| 5998 mask = RI_WHITE; | |
| 5999 goto do_class; | |
| 6000 case DIGIT: | |
| 6001 case DIGIT + ADD_NL: | |
| 6002 testval = mask = RI_DIGIT; | |
| 6003 goto do_class; | |
| 6004 case NDIGIT: | |
| 6005 case NDIGIT + ADD_NL: | |
| 6006 mask = RI_DIGIT; | |
| 6007 goto do_class; | |
| 6008 case HEX: | |
| 6009 case HEX + ADD_NL: | |
| 6010 testval = mask = RI_HEX; | |
| 6011 goto do_class; | |
| 6012 case NHEX: | |
| 6013 case NHEX + ADD_NL: | |
| 6014 mask = RI_HEX; | |
| 6015 goto do_class; | |
| 6016 case OCTAL: | |
| 6017 case OCTAL + ADD_NL: | |
| 6018 testval = mask = RI_OCTAL; | |
| 6019 goto do_class; | |
| 6020 case NOCTAL: | |
| 6021 case NOCTAL + ADD_NL: | |
| 6022 mask = RI_OCTAL; | |
| 6023 goto do_class; | |
| 6024 case WORD: | |
| 6025 case WORD + ADD_NL: | |
| 6026 testval = mask = RI_WORD; | |
| 6027 goto do_class; | |
| 6028 case NWORD: | |
| 6029 case NWORD + ADD_NL: | |
| 6030 mask = RI_WORD; | |
| 6031 goto do_class; | |
| 6032 case HEAD: | |
| 6033 case HEAD + ADD_NL: | |
| 6034 testval = mask = RI_HEAD; | |
| 6035 goto do_class; | |
| 6036 case NHEAD: | |
| 6037 case NHEAD + ADD_NL: | |
| 6038 mask = RI_HEAD; | |
| 6039 goto do_class; | |
| 6040 case ALPHA: | |
| 6041 case ALPHA + ADD_NL: | |
| 6042 testval = mask = RI_ALPHA; | |
| 6043 goto do_class; | |
| 6044 case NALPHA: | |
| 6045 case NALPHA + ADD_NL: | |
| 6046 mask = RI_ALPHA; | |
| 6047 goto do_class; | |
| 6048 case LOWER: | |
| 6049 case LOWER + ADD_NL: | |
| 6050 testval = mask = RI_LOWER; | |
| 6051 goto do_class; | |
| 6052 case NLOWER: | |
| 6053 case NLOWER + ADD_NL: | |
| 6054 mask = RI_LOWER; | |
| 6055 goto do_class; | |
| 6056 case UPPER: | |
| 6057 case UPPER + ADD_NL: | |
| 6058 testval = mask = RI_UPPER; | |
| 6059 goto do_class; | |
| 6060 case NUPPER: | |
| 6061 case NUPPER + ADD_NL: | |
| 6062 mask = RI_UPPER; | |
| 6063 goto do_class; | |
| 6064 | |
| 6065 case EXACTLY: | |
| 6066 { | |
| 6067 int cu, cl; | |
| 6068 | |
| 6069 /* This doesn't do a multi-byte character, because a MULTIBYTECODE | |
| 1347 | 6070 * would have been used for it. It does handle single-byte |
| 6071 * characters, such as latin1. */ | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
6072 if (rex.reg_ic) |
| 7 | 6073 { |
| 1347 | 6074 cu = MB_TOUPPER(*opnd); |
| 6075 cl = MB_TOLOWER(*opnd); | |
| 7 | 6076 while (count < maxcount && (*scan == cu || *scan == cl)) |
| 6077 { | |
| 6078 count++; | |
| 6079 scan++; | |
| 6080 } | |
| 6081 } | |
| 6082 else | |
| 6083 { | |
| 6084 cu = *opnd; | |
| 6085 while (count < maxcount && *scan == cu) | |
| 6086 { | |
| 6087 count++; | |
| 6088 scan++; | |
| 6089 } | |
| 6090 } | |
| 6091 break; | |
| 6092 } | |
| 6093 | |
| 6094 #ifdef FEAT_MBYTE | |
| 6095 case MULTIBYTECODE: | |
| 6096 { | |
| 6097 int i, len, cf = 0; | |
| 6098 | |
| 6099 /* Safety check (just in case 'encoding' was changed since | |
| 6100 * compiling the program). */ | |
| 474 | 6101 if ((len = (*mb_ptr2len)(opnd)) > 1) |
| 7 | 6102 { |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
6103 if (rex.reg_ic && enc_utf8) |
| 7 | 6104 cf = utf_fold(utf_ptr2char(opnd)); |
| 6785 | 6105 while (count < maxcount && (*mb_ptr2len)(scan) >= len) |
| 7 | 6106 { |
| 6107 for (i = 0; i < len; ++i) | |
| 6108 if (opnd[i] != scan[i]) | |
| 6109 break; | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
6110 if (i < len && (!rex.reg_ic || !enc_utf8 |
| 7 | 6111 || utf_fold(utf_ptr2char(scan)) != cf)) |
| 6112 break; | |
| 6113 scan += len; | |
| 6114 ++count; | |
| 6115 } | |
| 6116 } | |
| 6117 } | |
| 6118 break; | |
| 6119 #endif | |
| 6120 | |
| 6121 case ANYOF: | |
| 6122 case ANYOF + ADD_NL: | |
| 6123 testval = TRUE; | |
|
12674
e769c912fcd9
patch 8.0.1215: newer gcc warns for implicit fallthrough
Christian Brabandt <cb@256bit.org>
parents:
11529
diff
changeset
|
6124 /* FALLTHROUGH */ |
| 7 | 6125 |
| 6126 case ANYBUT: | |
| 6127 case ANYBUT + ADD_NL: | |
| 6128 while (count < maxcount) | |
| 6129 { | |
| 6130 #ifdef FEAT_MBYTE | |
| 6131 int len; | |
| 6132 #endif | |
| 6133 if (*scan == NUL) | |
| 6134 { | |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
6135 if (!REG_MULTI || !WITH_NL(OP(p)) || rex.lnum > rex.reg_maxline |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
6136 || rex.reg_line_lbr) |
| 7 | 6137 break; |
| 6138 reg_nextline(); | |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
6139 scan = rex.input; |
| 7 | 6140 if (got_int) |
| 6141 break; | |
| 6142 } | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
6143 else if (rex.reg_line_lbr && *scan == '\n' && WITH_NL(OP(p))) |
| 7 | 6144 ++scan; |
| 6145 #ifdef FEAT_MBYTE | |
| 474 | 6146 else if (has_mbyte && (len = (*mb_ptr2len)(scan)) > 1) |
| 7 | 6147 { |
| 6148 if ((cstrchr(opnd, (*mb_ptr2char)(scan)) == NULL) == testval) | |
| 6149 break; | |
| 6150 scan += len; | |
| 6151 } | |
| 6152 #endif | |
| 6153 else | |
| 6154 { | |
| 6155 if ((cstrchr(opnd, *scan) == NULL) == testval) | |
| 6156 break; | |
| 6157 ++scan; | |
| 6158 } | |
| 6159 ++count; | |
| 6160 } | |
| 6161 break; | |
| 6162 | |
| 6163 case NEWL: | |
| 6164 while (count < maxcount | |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
6165 && ((*scan == NUL && rex.lnum <= rex.reg_maxline |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
6166 && !rex.reg_line_lbr && REG_MULTI) |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
6167 || (*scan == '\n' && rex.reg_line_lbr))) |
| 7 | 6168 { |
| 6169 count++; | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
6170 if (rex.reg_line_lbr) |
| 7 | 6171 ADVANCE_REGINPUT(); |
| 6172 else | |
| 6173 reg_nextline(); | |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
6174 scan = rex.input; |
| 7 | 6175 if (got_int) |
| 6176 break; | |
| 6177 } | |
| 6178 break; | |
| 6179 | |
| 6180 default: /* Oh dear. Called inappropriately. */ | |
|
15470
55ccc2d353bd
patch 8.1.0743: giving error messages is not flexible
Bram Moolenaar <Bram@vim.org>
parents:
15339
diff
changeset
|
6181 emsg(_(e_re_corr)); |
| 7 | 6182 #ifdef DEBUG |
| 6183 printf("Called regrepeat with op code %d\n", OP(p)); | |
| 6184 #endif | |
| 6185 break; | |
| 6186 } | |
| 6187 | |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
6188 rex.input = scan; |
| 7 | 6189 |
| 6190 return (int)count; | |
| 6191 } | |
| 6192 | |
| 6193 /* | |
| 6194 * regnext - dig the "next" pointer out of a node | |
| 2010 | 6195 * Returns NULL when calculating size, when there is no next item and when |
| 6196 * there is an error. | |
| 7 | 6197 */ |
| 6198 static char_u * | |
|
7833
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
6199 regnext(char_u *p) |
| 7 | 6200 { |
| 6201 int offset; | |
| 6202 | |
| 2010 | 6203 if (p == JUST_CALC_SIZE || reg_toolong) |
| 7 | 6204 return NULL; |
| 6205 | |
| 6206 offset = NEXT(p); | |
| 6207 if (offset == 0) | |
| 6208 return NULL; | |
| 6209 | |
| 233 | 6210 if (OP(p) == BACK) |
| 7 | 6211 return p - offset; |
| 6212 else | |
| 6213 return p + offset; | |
| 6214 } | |
| 6215 | |
| 6216 /* | |
| 6217 * Check the regexp program for its magic number. | |
| 6218 * Return TRUE if it's wrong. | |
| 6219 */ | |
| 6220 static int | |
|
7833
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
6221 prog_magic_wrong(void) |
| 7 | 6222 { |
| 4444 | 6223 regprog_T *prog; |
| 6224 | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
6225 prog = REG_MULTI ? rex.reg_mmatch->regprog : rex.reg_match->regprog; |
| 4444 | 6226 if (prog->engine == &nfa_regengine) |
| 6227 /* For NFA matcher we don't check the magic */ | |
| 6228 return FALSE; | |
| 6229 | |
| 6230 if (UCHARAT(((bt_regprog_T *)prog)->program) != REGMAGIC) | |
| 7 | 6231 { |
|
15470
55ccc2d353bd
patch 8.1.0743: giving error messages is not flexible
Bram Moolenaar <Bram@vim.org>
parents:
15339
diff
changeset
|
6232 emsg(_(e_re_corr)); |
| 7 | 6233 return TRUE; |
| 6234 } | |
| 6235 return FALSE; | |
| 6236 } | |
| 6237 | |
| 6238 /* | |
| 6239 * Cleanup the subexpressions, if this wasn't done yet. | |
| 6240 * This construction is used to clear the subexpressions only when they are | |
| 6241 * used (to increase speed). | |
| 6242 */ | |
| 6243 static void | |
|
7833
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
6244 cleanup_subexpr(void) |
| 7 | 6245 { |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
6246 if (rex.need_clear_subexpr) |
| 7 | 6247 { |
| 6248 if (REG_MULTI) | |
| 6249 { | |
| 6250 /* Use 0xff to set lnum to -1 */ | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
6251 vim_memset(rex.reg_startpos, 0xff, sizeof(lpos_T) * NSUBEXP); |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
6252 vim_memset(rex.reg_endpos, 0xff, sizeof(lpos_T) * NSUBEXP); |
| 7 | 6253 } |
| 6254 else | |
| 6255 { | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
6256 vim_memset(rex.reg_startp, 0, sizeof(char_u *) * NSUBEXP); |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
6257 vim_memset(rex.reg_endp, 0, sizeof(char_u *) * NSUBEXP); |
| 7 | 6258 } |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
6259 rex.need_clear_subexpr = FALSE; |
| 7 | 6260 } |
| 6261 } | |
| 6262 | |
| 6263 #ifdef FEAT_SYN_HL | |
| 6264 static void | |
|
7833
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
6265 cleanup_zsubexpr(void) |
| 7 | 6266 { |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
6267 if (rex.need_clear_zsubexpr) |
| 7 | 6268 { |
| 6269 if (REG_MULTI) | |
| 6270 { | |
| 6271 /* Use 0xff to set lnum to -1 */ | |
| 6272 vim_memset(reg_startzpos, 0xff, sizeof(lpos_T) * NSUBEXP); | |
| 6273 vim_memset(reg_endzpos, 0xff, sizeof(lpos_T) * NSUBEXP); | |
| 6274 } | |
| 6275 else | |
| 6276 { | |
| 6277 vim_memset(reg_startzp, 0, sizeof(char_u *) * NSUBEXP); | |
| 6278 vim_memset(reg_endzp, 0, sizeof(char_u *) * NSUBEXP); | |
| 6279 } | |
|
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Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
6280 rex.need_clear_zsubexpr = FALSE; |
| 7 | 6281 } |
| 6282 } | |
| 6283 #endif | |
| 6284 | |
| 6285 /* | |
| 1579 | 6286 * Save the current subexpr to "bp", so that they can be restored |
| 6287 * later by restore_subexpr(). | |
| 6288 */ | |
| 6289 static void | |
|
7833
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Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
6290 save_subexpr(regbehind_T *bp) |
| 1579 | 6291 { |
| 6292 int i; | |
| 6293 | |
|
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diff
changeset
|
6294 /* When "rex.need_clear_subexpr" is set we don't need to save the values, only |
| 1602 | 6295 * remember that this flag needs to be set again when restoring. */ |
|
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diff
changeset
|
6296 bp->save_need_clear_subexpr = rex.need_clear_subexpr; |
|
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diff
changeset
|
6297 if (!rex.need_clear_subexpr) |
| 1579 | 6298 { |
| 1602 | 6299 for (i = 0; i < NSUBEXP; ++i) |
| 1579 | 6300 { |
| 1602 | 6301 if (REG_MULTI) |
| 6302 { | |
|
10245
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Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
6303 bp->save_start[i].se_u.pos = rex.reg_startpos[i]; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
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parents:
10187
diff
changeset
|
6304 bp->save_end[i].se_u.pos = rex.reg_endpos[i]; |
| 1602 | 6305 } |
| 6306 else | |
| 6307 { | |
|
10245
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10187
diff
changeset
|
6308 bp->save_start[i].se_u.ptr = rex.reg_startp[i]; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
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parents:
10187
diff
changeset
|
6309 bp->save_end[i].se_u.ptr = rex.reg_endp[i]; |
| 1602 | 6310 } |
| 1579 | 6311 } |
| 6312 } | |
| 6313 } | |
| 6314 | |
| 6315 /* | |
| 6316 * Restore the subexpr from "bp". | |
| 6317 */ | |
| 6318 static void | |
|
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7807
diff
changeset
|
6319 restore_subexpr(regbehind_T *bp) |
| 1579 | 6320 { |
| 6321 int i; | |
| 6322 | |
| 1602 | 6323 /* Only need to restore saved values when they are not to be cleared. */ |
|
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diff
changeset
|
6324 rex.need_clear_subexpr = bp->save_need_clear_subexpr; |
|
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diff
changeset
|
6325 if (!rex.need_clear_subexpr) |
| 1579 | 6326 { |
| 1602 | 6327 for (i = 0; i < NSUBEXP; ++i) |
| 1579 | 6328 { |
| 1602 | 6329 if (REG_MULTI) |
| 6330 { | |
|
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10187
diff
changeset
|
6331 rex.reg_startpos[i] = bp->save_start[i].se_u.pos; |
|
d76ccdacb41e
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10187
diff
changeset
|
6332 rex.reg_endpos[i] = bp->save_end[i].se_u.pos; |
| 1602 | 6333 } |
| 6334 else | |
| 6335 { | |
|
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10187
diff
changeset
|
6336 rex.reg_startp[i] = bp->save_start[i].se_u.ptr; |
|
d76ccdacb41e
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10187
diff
changeset
|
6337 rex.reg_endp[i] = bp->save_end[i].se_u.ptr; |
| 1602 | 6338 } |
| 1579 | 6339 } |
| 6340 } | |
| 6341 } | |
| 6342 | |
| 6343 /* | |
|
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diff
changeset
|
6344 * Advance rex.lnum, rex.line and rex.input to the next line. |
| 7 | 6345 */ |
| 6346 static void | |
|
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diff
changeset
|
6347 reg_nextline(void) |
| 7 | 6348 { |
|
14354
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diff
changeset
|
6349 rex.line = reg_getline(++rex.lnum); |
|
ffd834f893aa
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parents:
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diff
changeset
|
6350 rex.input = rex.line; |
| 7 | 6351 fast_breakcheck(); |
| 6352 } | |
| 6353 | |
| 6354 /* | |
| 6355 * Save the input line and position in a regsave_T. | |
| 6356 */ | |
| 6357 static void | |
|
7833
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parents:
7807
diff
changeset
|
6358 reg_save(regsave_T *save, garray_T *gap) |
| 7 | 6359 { |
| 6360 if (REG_MULTI) | |
| 6361 { | |
|
14354
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diff
changeset
|
6362 save->rs_u.pos.col = (colnr_T)(rex.input - rex.line); |
|
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parents:
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diff
changeset
|
6363 save->rs_u.pos.lnum = rex.lnum; |
| 7 | 6364 } |
| 6365 else | |
|
14354
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Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
6366 save->rs_u.ptr = rex.input; |
| 233 | 6367 save->rs_len = gap->ga_len; |
| 7 | 6368 } |
| 6369 | |
| 6370 /* | |
| 6371 * Restore the input line and position from a regsave_T. | |
| 6372 */ | |
| 6373 static void | |
|
7833
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Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
6374 reg_restore(regsave_T *save, garray_T *gap) |
| 7 | 6375 { |
| 6376 if (REG_MULTI) | |
| 6377 { | |
|
14354
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parents:
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diff
changeset
|
6378 if (rex.lnum != save->rs_u.pos.lnum) |
| 7 | 6379 { |
| 6380 /* only call reg_getline() when the line number changed to save | |
| 6381 * a bit of time */ | |
|
14354
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parents:
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diff
changeset
|
6382 rex.lnum = save->rs_u.pos.lnum; |
|
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parents:
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diff
changeset
|
6383 rex.line = reg_getline(rex.lnum); |
| 7 | 6384 } |
|
14354
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parents:
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diff
changeset
|
6385 rex.input = rex.line + save->rs_u.pos.col; |
| 7 | 6386 } |
| 6387 else | |
|
14354
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parents:
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diff
changeset
|
6388 rex.input = save->rs_u.ptr; |
| 233 | 6389 gap->ga_len = save->rs_len; |
| 7 | 6390 } |
| 6391 | |
| 6392 /* | |
| 6393 * Return TRUE if current position is equal to saved position. | |
| 6394 */ | |
| 6395 static int | |
|
7833
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parents:
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diff
changeset
|
6396 reg_save_equal(regsave_T *save) |
| 7 | 6397 { |
| 6398 if (REG_MULTI) | |
|
14354
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parents:
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diff
changeset
|
6399 return rex.lnum == save->rs_u.pos.lnum |
|
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parents:
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diff
changeset
|
6400 && rex.input == rex.line + save->rs_u.pos.col; |
|
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
6401 return rex.input == save->rs_u.ptr; |
| 7 | 6402 } |
| 6403 | |
| 6404 /* | |
| 6405 * Tentatively set the sub-expression start to the current position (after | |
| 6406 * calling regmatch() they will have changed). Need to save the existing | |
| 6407 * values for when there is no match. | |
| 6408 * Use se_save() to use pointer (save_se_multi()) or position (save_se_one()), | |
| 6409 * depending on REG_MULTI. | |
| 6410 */ | |
| 6411 static void | |
|
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Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
6412 save_se_multi(save_se_T *savep, lpos_T *posp) |
| 7 | 6413 { |
| 6414 savep->se_u.pos = *posp; | |
|
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diff
changeset
|
6415 posp->lnum = rex.lnum; |
|
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patch 8.1.0192: executing regexp recursively fails with a crash
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parents:
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diff
changeset
|
6416 posp->col = (colnr_T)(rex.input - rex.line); |
| 7 | 6417 } |
| 6418 | |
| 6419 static void | |
|
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Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
6420 save_se_one(save_se_T *savep, char_u **pp) |
| 7 | 6421 { |
| 6422 savep->se_u.ptr = *pp; | |
|
14354
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parents:
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diff
changeset
|
6423 *pp = rex.input; |
| 7 | 6424 } |
| 6425 | |
| 6426 /* | |
| 6427 * Compare a number with the operand of RE_LNUM, RE_COL or RE_VCOL. | |
| 6428 */ | |
| 6429 static int | |
|
7833
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commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
6430 re_num_cmp(long_u val, char_u *scan) |
| 7 | 6431 { |
| 6432 long_u n = OPERAND_MIN(scan); | |
| 6433 | |
| 6434 if (OPERAND_CMP(scan) == '>') | |
| 6435 return val > n; | |
| 6436 if (OPERAND_CMP(scan) == '<') | |
| 6437 return val < n; | |
| 6438 return val == n; | |
| 6439 } | |
| 6440 | |
|
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diff
changeset
|
6441 /* |
|
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diff
changeset
|
6442 * Check whether a backreference matches. |
|
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diff
changeset
|
6443 * Returns RA_FAIL, RA_NOMATCH or RA_MATCH. |
| 5504 | 6444 * If "bytelen" is not NULL, it is set to the byte length of the match in the |
| 6445 * last line. | |
|
4891
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|
6446 */ |
|
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changeset
|
6447 static int |
|
7833
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diff
changeset
|
6448 match_with_backref( |
|
c079097365f3
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diff
changeset
|
6449 linenr_T start_lnum, |
|
c079097365f3
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diff
changeset
|
6450 colnr_T start_col, |
|
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diff
changeset
|
6451 linenr_T end_lnum, |
|
c079097365f3
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diff
changeset
|
6452 colnr_T end_col, |
|
c079097365f3
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diff
changeset
|
6453 int *bytelen) |
|
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|
6454 { |
|
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changeset
|
6455 linenr_T clnum = start_lnum; |
|
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|
6456 colnr_T ccol = start_col; |
|
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|
6457 int len; |
|
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|
6458 char_u *p; |
|
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|
6459 |
|
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|
6460 if (bytelen != NULL) |
|
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|
6461 *bytelen = 0; |
|
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|
6462 for (;;) |
|
4c42efb4c098
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|
6463 { |
|
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changeset
|
6464 /* Since getting one line may invalidate the other, need to make copy. |
|
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|
6465 * Slow! */ |
|
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|
6466 if (rex.line != reg_tofree) |
|
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|
6467 { |
|
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changeset
|
6468 len = (int)STRLEN(rex.line); |
|
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changeset
|
6469 if (reg_tofree == NULL || len >= (int)reg_tofreelen) |
|
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|
6470 { |
|
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changeset
|
6471 len += 50; /* get some extra */ |
|
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changeset
|
6472 vim_free(reg_tofree); |
|
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changeset
|
6473 reg_tofree = alloc(len); |
|
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|
6474 if (reg_tofree == NULL) |
|
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|
6475 return RA_FAIL; /* out of memory!*/ |
|
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changeset
|
6476 reg_tofreelen = len; |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6477 } |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
6478 STRCPY(reg_tofree, rex.line); |
|
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
6479 rex.input = reg_tofree + (rex.input - rex.line); |
|
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
6480 rex.line = reg_tofree; |
|
4891
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6481 } |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6482 |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6483 /* Get the line to compare with. */ |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6484 p = reg_getline(clnum); |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6485 if (clnum == end_lnum) |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6486 len = end_col - ccol; |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6487 else |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6488 len = (int)STRLEN(p + ccol); |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6489 |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
6490 if (cstrncmp(p + ccol, rex.input, &len) != 0) |
|
4891
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6491 return RA_NOMATCH; /* doesn't match */ |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6492 if (bytelen != NULL) |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6493 *bytelen += len; |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6494 if (clnum == end_lnum) |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6495 break; /* match and at end! */ |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
6496 if (rex.lnum >= rex.reg_maxline) |
|
4891
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6497 return RA_NOMATCH; /* text too short */ |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6498 |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6499 /* Advance to next line. */ |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6500 reg_nextline(); |
| 5504 | 6501 if (bytelen != NULL) |
| 6502 *bytelen = 0; | |
|
4891
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6503 ++clnum; |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6504 ccol = 0; |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6505 if (got_int) |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6506 return RA_FAIL; |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6507 } |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6508 |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
6509 /* found a match! Note that rex.line may now point to a copy of the line, |
|
4891
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6510 * that should not matter. */ |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6511 return RA_MATCH; |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6512 } |
| 7 | 6513 |
| 4444 | 6514 #ifdef BT_REGEXP_DUMP |
| 7 | 6515 |
| 6516 /* | |
| 6517 * regdump - dump a regexp onto stdout in vaguely comprehensible form | |
| 6518 */ | |
| 6519 static void | |
|
7833
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
6520 regdump(char_u *pattern, bt_regprog_T *r) |
| 7 | 6521 { |
| 6522 char_u *s; | |
| 6523 int op = EXACTLY; /* Arbitrary non-END op. */ | |
| 6524 char_u *next; | |
| 6525 char_u *end = NULL; | |
| 4444 | 6526 FILE *f; |
| 6527 | |
| 6528 #ifdef BT_REGEXP_LOG | |
| 6529 f = fopen("bt_regexp_log.log", "a"); | |
| 6530 #else | |
| 6531 f = stdout; | |
| 6532 #endif | |
| 6533 if (f == NULL) | |
| 6534 return; | |
| 6535 fprintf(f, "-------------------------------------\n\r\nregcomp(%s):\r\n", pattern); | |
| 7 | 6536 |
| 6537 s = r->program + 1; | |
| 6538 /* | |
| 6539 * Loop until we find the END that isn't before a referred next (an END | |
| 6540 * can also appear in a NOMATCH operand). | |
| 6541 */ | |
| 6542 while (op != END || s <= end) | |
| 6543 { | |
| 6544 op = OP(s); | |
| 4444 | 6545 fprintf(f, "%2d%s", (int)(s - r->program), regprop(s)); /* Where, what. */ |
| 7 | 6546 next = regnext(s); |
| 6547 if (next == NULL) /* Next ptr. */ | |
| 4444 | 6548 fprintf(f, "(0)"); |
| 7 | 6549 else |
| 4444 | 6550 fprintf(f, "(%d)", (int)((s - r->program) + (next - s))); |
| 7 | 6551 if (end < next) |
| 6552 end = next; | |
| 6553 if (op == BRACE_LIMITS) | |
| 6554 { | |
|
4746
d1376091d18b
updated for version 7.3.1120
Bram Moolenaar <bram@vim.org>
parents:
4744
diff
changeset
|
6555 /* Two ints */ |
| 4444 | 6556 fprintf(f, " minval %ld, maxval %ld", OPERAND_MIN(s), OPERAND_MAX(s)); |
| 7 | 6557 s += 8; |
| 6558 } | |
|
4746
d1376091d18b
updated for version 7.3.1120
Bram Moolenaar <bram@vim.org>
parents:
4744
diff
changeset
|
6559 else if (op == BEHIND || op == NOBEHIND) |
|
d1376091d18b
updated for version 7.3.1120
Bram Moolenaar <bram@vim.org>
parents:
4744
diff
changeset
|
6560 { |
|
d1376091d18b
updated for version 7.3.1120
Bram Moolenaar <bram@vim.org>
parents:
4744
diff
changeset
|
6561 /* one int */ |
|
d1376091d18b
updated for version 7.3.1120
Bram Moolenaar <bram@vim.org>
parents:
4744
diff
changeset
|
6562 fprintf(f, " count %ld", OPERAND_MIN(s)); |
|
d1376091d18b
updated for version 7.3.1120
Bram Moolenaar <bram@vim.org>
parents:
4744
diff
changeset
|
6563 s += 4; |
|
d1376091d18b
updated for version 7.3.1120
Bram Moolenaar <bram@vim.org>
parents:
4744
diff
changeset
|
6564 } |
|
4770
b20dbf3a5370
updated for version 7.3.1132
Bram Moolenaar <bram@vim.org>
parents:
4762
diff
changeset
|
6565 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
|
6566 { |
|
b20dbf3a5370
updated for version 7.3.1132
Bram Moolenaar <bram@vim.org>
parents:
4762
diff
changeset
|
6567 /* one int plus comperator */ |
|
b20dbf3a5370
updated for version 7.3.1132
Bram Moolenaar <bram@vim.org>
parents:
4762
diff
changeset
|
6568 fprintf(f, " count %ld", OPERAND_MIN(s)); |
|
b20dbf3a5370
updated for version 7.3.1132
Bram Moolenaar <bram@vim.org>
parents:
4762
diff
changeset
|
6569 s += 5; |
|
b20dbf3a5370
updated for version 7.3.1132
Bram Moolenaar <bram@vim.org>
parents:
4762
diff
changeset
|
6570 } |
| 7 | 6571 s += 3; |
| 6572 if (op == ANYOF || op == ANYOF + ADD_NL | |
| 6573 || op == ANYBUT || op == ANYBUT + ADD_NL | |
| 6574 || op == EXACTLY) | |
| 6575 { | |
| 6576 /* Literal string, where present. */ | |
| 4444 | 6577 fprintf(f, "\nxxxxxxxxx\n"); |
| 7 | 6578 while (*s != NUL) |
| 4444 | 6579 fprintf(f, "%c", *s++); |
| 6580 fprintf(f, "\nxxxxxxxxx\n"); | |
| 7 | 6581 s++; |
| 6582 } | |
| 4444 | 6583 fprintf(f, "\r\n"); |
| 7 | 6584 } |
| 6585 | |
| 6586 /* Header fields of interest. */ | |
| 6587 if (r->regstart != NUL) | |
| 4444 | 6588 fprintf(f, "start `%s' 0x%x; ", r->regstart < 256 |
| 7 | 6589 ? (char *)transchar(r->regstart) |
| 6590 : "multibyte", r->regstart); | |
| 6591 if (r->reganch) | |
| 4444 | 6592 fprintf(f, "anchored; "); |
| 7 | 6593 if (r->regmust != NULL) |
| 4444 | 6594 fprintf(f, "must have \"%s\"", r->regmust); |
| 6595 fprintf(f, "\r\n"); | |
| 6596 | |
| 6597 #ifdef BT_REGEXP_LOG | |
| 6598 fclose(f); | |
| 6599 #endif | |
| 7 | 6600 } |
| 4444 | 6601 #endif /* BT_REGEXP_DUMP */ |
| 6602 | |
| 6603 #ifdef DEBUG | |
| 7 | 6604 /* |
| 6605 * regprop - printable representation of opcode | |
| 6606 */ | |
| 6607 static char_u * | |
|
7833
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
6608 regprop(char_u *op) |
| 7 | 6609 { |
| 4444 | 6610 char *p; |
| 6611 static char buf[50]; | |
| 6612 | |
| 6613 STRCPY(buf, ":"); | |
| 6614 | |
| 6615 switch ((int) OP(op)) | |
| 7 | 6616 { |
| 6617 case BOL: | |
| 6618 p = "BOL"; | |
| 6619 break; | |
| 6620 case EOL: | |
| 6621 p = "EOL"; | |
| 6622 break; | |
| 6623 case RE_BOF: | |
| 6624 p = "BOF"; | |
| 6625 break; | |
| 6626 case RE_EOF: | |
| 6627 p = "EOF"; | |
| 6628 break; | |
| 6629 case CURSOR: | |
| 6630 p = "CURSOR"; | |
| 6631 break; | |
| 639 | 6632 case RE_VISUAL: |
| 6633 p = "RE_VISUAL"; | |
| 6634 break; | |
| 7 | 6635 case RE_LNUM: |
| 6636 p = "RE_LNUM"; | |
| 6637 break; | |
| 639 | 6638 case RE_MARK: |
| 6639 p = "RE_MARK"; | |
| 6640 break; | |
| 7 | 6641 case RE_COL: |
| 6642 p = "RE_COL"; | |
| 6643 break; | |
| 6644 case RE_VCOL: | |
| 6645 p = "RE_VCOL"; | |
| 6646 break; | |
| 6647 case BOW: | |
| 6648 p = "BOW"; | |
| 6649 break; | |
| 6650 case EOW: | |
| 6651 p = "EOW"; | |
| 6652 break; | |
| 6653 case ANY: | |
| 6654 p = "ANY"; | |
| 6655 break; | |
| 6656 case ANY + ADD_NL: | |
| 6657 p = "ANY+NL"; | |
| 6658 break; | |
| 6659 case ANYOF: | |
| 6660 p = "ANYOF"; | |
| 6661 break; | |
| 6662 case ANYOF + ADD_NL: | |
| 6663 p = "ANYOF+NL"; | |
| 6664 break; | |
| 6665 case ANYBUT: | |
| 6666 p = "ANYBUT"; | |
| 6667 break; | |
| 6668 case ANYBUT + ADD_NL: | |
| 6669 p = "ANYBUT+NL"; | |
| 6670 break; | |
| 6671 case IDENT: | |
| 6672 p = "IDENT"; | |
| 6673 break; | |
| 6674 case IDENT + ADD_NL: | |
| 6675 p = "IDENT+NL"; | |
| 6676 break; | |
| 6677 case SIDENT: | |
| 6678 p = "SIDENT"; | |
| 6679 break; | |
| 6680 case SIDENT + ADD_NL: | |
| 6681 p = "SIDENT+NL"; | |
| 6682 break; | |
| 6683 case KWORD: | |
| 6684 p = "KWORD"; | |
| 6685 break; | |
| 6686 case KWORD + ADD_NL: | |
| 6687 p = "KWORD+NL"; | |
| 6688 break; | |
| 6689 case SKWORD: | |
| 6690 p = "SKWORD"; | |
| 6691 break; | |
| 6692 case SKWORD + ADD_NL: | |
| 6693 p = "SKWORD+NL"; | |
| 6694 break; | |
| 6695 case FNAME: | |
| 6696 p = "FNAME"; | |
| 6697 break; | |
| 6698 case FNAME + ADD_NL: | |
| 6699 p = "FNAME+NL"; | |
| 6700 break; | |
| 6701 case SFNAME: | |
| 6702 p = "SFNAME"; | |
| 6703 break; | |
| 6704 case SFNAME + ADD_NL: | |
| 6705 p = "SFNAME+NL"; | |
| 6706 break; | |
| 6707 case PRINT: | |
| 6708 p = "PRINT"; | |
| 6709 break; | |
| 6710 case PRINT + ADD_NL: | |
| 6711 p = "PRINT+NL"; | |
| 6712 break; | |
| 6713 case SPRINT: | |
| 6714 p = "SPRINT"; | |
| 6715 break; | |
| 6716 case SPRINT + ADD_NL: | |
| 6717 p = "SPRINT+NL"; | |
| 6718 break; | |
| 6719 case WHITE: | |
| 6720 p = "WHITE"; | |
| 6721 break; | |
| 6722 case WHITE + ADD_NL: | |
| 6723 p = "WHITE+NL"; | |
| 6724 break; | |
| 6725 case NWHITE: | |
| 6726 p = "NWHITE"; | |
| 6727 break; | |
| 6728 case NWHITE + ADD_NL: | |
| 6729 p = "NWHITE+NL"; | |
| 6730 break; | |
| 6731 case DIGIT: | |
| 6732 p = "DIGIT"; | |
| 6733 break; | |
| 6734 case DIGIT + ADD_NL: | |
| 6735 p = "DIGIT+NL"; | |
| 6736 break; | |
| 6737 case NDIGIT: | |
| 6738 p = "NDIGIT"; | |
| 6739 break; | |
| 6740 case NDIGIT + ADD_NL: | |
| 6741 p = "NDIGIT+NL"; | |
| 6742 break; | |
| 6743 case HEX: | |
| 6744 p = "HEX"; | |
| 6745 break; | |
| 6746 case HEX + ADD_NL: | |
| 6747 p = "HEX+NL"; | |
| 6748 break; | |
| 6749 case NHEX: | |
| 6750 p = "NHEX"; | |
| 6751 break; | |
| 6752 case NHEX + ADD_NL: | |
| 6753 p = "NHEX+NL"; | |
| 6754 break; | |
| 6755 case OCTAL: | |
| 6756 p = "OCTAL"; | |
| 6757 break; | |
| 6758 case OCTAL + ADD_NL: | |
| 6759 p = "OCTAL+NL"; | |
| 6760 break; | |
| 6761 case NOCTAL: | |
| 6762 p = "NOCTAL"; | |
| 6763 break; | |
| 6764 case NOCTAL + ADD_NL: | |
| 6765 p = "NOCTAL+NL"; | |
| 6766 break; | |
| 6767 case WORD: | |
| 6768 p = "WORD"; | |
| 6769 break; | |
| 6770 case WORD + ADD_NL: | |
| 6771 p = "WORD+NL"; | |
| 6772 break; | |
| 6773 case NWORD: | |
| 6774 p = "NWORD"; | |
| 6775 break; | |
| 6776 case NWORD + ADD_NL: | |
| 6777 p = "NWORD+NL"; | |
| 6778 break; | |
| 6779 case HEAD: | |
| 6780 p = "HEAD"; | |
| 6781 break; | |
| 6782 case HEAD + ADD_NL: | |
| 6783 p = "HEAD+NL"; | |
| 6784 break; | |
| 6785 case NHEAD: | |
| 6786 p = "NHEAD"; | |
| 6787 break; | |
| 6788 case NHEAD + ADD_NL: | |
| 6789 p = "NHEAD+NL"; | |
| 6790 break; | |
| 6791 case ALPHA: | |
| 6792 p = "ALPHA"; | |
| 6793 break; | |
| 6794 case ALPHA + ADD_NL: | |
| 6795 p = "ALPHA+NL"; | |
| 6796 break; | |
| 6797 case NALPHA: | |
| 6798 p = "NALPHA"; | |
| 6799 break; | |
| 6800 case NALPHA + ADD_NL: | |
| 6801 p = "NALPHA+NL"; | |
| 6802 break; | |
| 6803 case LOWER: | |
| 6804 p = "LOWER"; | |
| 6805 break; | |
| 6806 case LOWER + ADD_NL: | |
| 6807 p = "LOWER+NL"; | |
| 6808 break; | |
| 6809 case NLOWER: | |
| 6810 p = "NLOWER"; | |
| 6811 break; | |
| 6812 case NLOWER + ADD_NL: | |
| 6813 p = "NLOWER+NL"; | |
| 6814 break; | |
| 6815 case UPPER: | |
| 6816 p = "UPPER"; | |
| 6817 break; | |
| 6818 case UPPER + ADD_NL: | |
| 6819 p = "UPPER+NL"; | |
| 6820 break; | |
| 6821 case NUPPER: | |
| 6822 p = "NUPPER"; | |
| 6823 break; | |
| 6824 case NUPPER + ADD_NL: | |
| 6825 p = "NUPPER+NL"; | |
| 6826 break; | |
| 6827 case BRANCH: | |
| 6828 p = "BRANCH"; | |
| 6829 break; | |
| 6830 case EXACTLY: | |
| 6831 p = "EXACTLY"; | |
| 6832 break; | |
| 6833 case NOTHING: | |
| 6834 p = "NOTHING"; | |
| 6835 break; | |
| 6836 case BACK: | |
| 6837 p = "BACK"; | |
| 6838 break; | |
| 6839 case END: | |
| 6840 p = "END"; | |
| 6841 break; | |
| 6842 case MOPEN + 0: | |
| 6843 p = "MATCH START"; | |
| 6844 break; | |
| 6845 case MOPEN + 1: | |
| 6846 case MOPEN + 2: | |
| 6847 case MOPEN + 3: | |
| 6848 case MOPEN + 4: | |
| 6849 case MOPEN + 5: | |
| 6850 case MOPEN + 6: | |
| 6851 case MOPEN + 7: | |
| 6852 case MOPEN + 8: | |
| 6853 case MOPEN + 9: | |
| 6854 sprintf(buf + STRLEN(buf), "MOPEN%d", OP(op) - MOPEN); | |
| 6855 p = NULL; | |
| 6856 break; | |
| 6857 case MCLOSE + 0: | |
| 6858 p = "MATCH END"; | |
| 6859 break; | |
| 6860 case MCLOSE + 1: | |
| 6861 case MCLOSE + 2: | |
| 6862 case MCLOSE + 3: | |
| 6863 case MCLOSE + 4: | |
| 6864 case MCLOSE + 5: | |
| 6865 case MCLOSE + 6: | |
| 6866 case MCLOSE + 7: | |
| 6867 case MCLOSE + 8: | |
| 6868 case MCLOSE + 9: | |
| 6869 sprintf(buf + STRLEN(buf), "MCLOSE%d", OP(op) - MCLOSE); | |
| 6870 p = NULL; | |
| 6871 break; | |
| 6872 case BACKREF + 1: | |
| 6873 case BACKREF + 2: | |
| 6874 case BACKREF + 3: | |
| 6875 case BACKREF + 4: | |
| 6876 case BACKREF + 5: | |
| 6877 case BACKREF + 6: | |
| 6878 case BACKREF + 7: | |
| 6879 case BACKREF + 8: | |
| 6880 case BACKREF + 9: | |
| 6881 sprintf(buf + STRLEN(buf), "BACKREF%d", OP(op) - BACKREF); | |
| 6882 p = NULL; | |
| 6883 break; | |
| 6884 case NOPEN: | |
| 6885 p = "NOPEN"; | |
| 6886 break; | |
| 6887 case NCLOSE: | |
| 6888 p = "NCLOSE"; | |
| 6889 break; | |
| 6890 #ifdef FEAT_SYN_HL | |
| 6891 case ZOPEN + 1: | |
| 6892 case ZOPEN + 2: | |
| 6893 case ZOPEN + 3: | |
| 6894 case ZOPEN + 4: | |
| 6895 case ZOPEN + 5: | |
| 6896 case ZOPEN + 6: | |
| 6897 case ZOPEN + 7: | |
| 6898 case ZOPEN + 8: | |
| 6899 case ZOPEN + 9: | |
| 6900 sprintf(buf + STRLEN(buf), "ZOPEN%d", OP(op) - ZOPEN); | |
| 6901 p = NULL; | |
| 6902 break; | |
| 6903 case ZCLOSE + 1: | |
| 6904 case ZCLOSE + 2: | |
| 6905 case ZCLOSE + 3: | |
| 6906 case ZCLOSE + 4: | |
| 6907 case ZCLOSE + 5: | |
| 6908 case ZCLOSE + 6: | |
| 6909 case ZCLOSE + 7: | |
| 6910 case ZCLOSE + 8: | |
| 6911 case ZCLOSE + 9: | |
| 6912 sprintf(buf + STRLEN(buf), "ZCLOSE%d", OP(op) - ZCLOSE); | |
| 6913 p = NULL; | |
| 6914 break; | |
| 6915 case ZREF + 1: | |
| 6916 case ZREF + 2: | |
| 6917 case ZREF + 3: | |
| 6918 case ZREF + 4: | |
| 6919 case ZREF + 5: | |
| 6920 case ZREF + 6: | |
| 6921 case ZREF + 7: | |
| 6922 case ZREF + 8: | |
| 6923 case ZREF + 9: | |
| 6924 sprintf(buf + STRLEN(buf), "ZREF%d", OP(op) - ZREF); | |
| 6925 p = NULL; | |
| 6926 break; | |
| 6927 #endif | |
| 6928 case STAR: | |
| 6929 p = "STAR"; | |
| 6930 break; | |
| 6931 case PLUS: | |
| 6932 p = "PLUS"; | |
| 6933 break; | |
| 6934 case NOMATCH: | |
| 6935 p = "NOMATCH"; | |
| 6936 break; | |
| 6937 case MATCH: | |
| 6938 p = "MATCH"; | |
| 6939 break; | |
| 6940 case BEHIND: | |
| 6941 p = "BEHIND"; | |
| 6942 break; | |
| 6943 case NOBEHIND: | |
| 6944 p = "NOBEHIND"; | |
| 6945 break; | |
| 6946 case SUBPAT: | |
| 6947 p = "SUBPAT"; | |
| 6948 break; | |
| 6949 case BRACE_LIMITS: | |
| 6950 p = "BRACE_LIMITS"; | |
| 6951 break; | |
| 6952 case BRACE_SIMPLE: | |
| 6953 p = "BRACE_SIMPLE"; | |
| 6954 break; | |
| 6955 case BRACE_COMPLEX + 0: | |
| 6956 case BRACE_COMPLEX + 1: | |
| 6957 case BRACE_COMPLEX + 2: | |
| 6958 case BRACE_COMPLEX + 3: | |
| 6959 case BRACE_COMPLEX + 4: | |
| 6960 case BRACE_COMPLEX + 5: | |
| 6961 case BRACE_COMPLEX + 6: | |
| 6962 case BRACE_COMPLEX + 7: | |
| 6963 case BRACE_COMPLEX + 8: | |
| 6964 case BRACE_COMPLEX + 9: | |
| 6965 sprintf(buf + STRLEN(buf), "BRACE_COMPLEX%d", OP(op) - BRACE_COMPLEX); | |
| 6966 p = NULL; | |
| 6967 break; | |
| 6968 #ifdef FEAT_MBYTE | |
| 6969 case MULTIBYTECODE: | |
| 6970 p = "MULTIBYTECODE"; | |
| 6971 break; | |
| 6972 #endif | |
| 6973 case NEWL: | |
| 6974 p = "NEWL"; | |
| 6975 break; | |
| 6976 default: | |
| 6977 sprintf(buf + STRLEN(buf), "corrupt %d", OP(op)); | |
| 6978 p = NULL; | |
| 6979 break; | |
| 6980 } | |
| 6981 if (p != NULL) | |
| 4444 | 6982 STRCAT(buf, p); |
| 6983 return (char_u *)buf; | |
| 7 | 6984 } |
| 4444 | 6985 #endif /* DEBUG */ |
| 7 | 6986 |
| 6203 | 6987 /* |
| 6988 * Used in a place where no * or \+ can follow. | |
| 6989 */ | |
| 6990 static int | |
|
7833
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
6991 re_mult_next(char *what) |
| 6203 | 6992 { |
| 6993 if (re_multi_type(peekchr()) == MULTI_MULT) | |
|
15480
bd12ace1bab2
patch 8.1.0748: using sprintf() instead of semsg()
Bram Moolenaar <Bram@vim.org>
parents:
15470
diff
changeset
|
6994 { |
|
bd12ace1bab2
patch 8.1.0748: using sprintf() instead of semsg()
Bram Moolenaar <Bram@vim.org>
parents:
15470
diff
changeset
|
6995 semsg(_("E888: (NFA regexp) cannot repeat %s"), what); |
|
bd12ace1bab2
patch 8.1.0748: using sprintf() instead of semsg()
Bram Moolenaar <Bram@vim.org>
parents:
15470
diff
changeset
|
6996 rc_did_emsg = TRUE; |
|
bd12ace1bab2
patch 8.1.0748: using sprintf() instead of semsg()
Bram Moolenaar <Bram@vim.org>
parents:
15470
diff
changeset
|
6997 return FAIL; |
|
bd12ace1bab2
patch 8.1.0748: using sprintf() instead of semsg()
Bram Moolenaar <Bram@vim.org>
parents:
15470
diff
changeset
|
6998 } |
| 6203 | 6999 return OK; |
| 7000 } | |
| 7001 | |
| 7 | 7002 #ifdef FEAT_MBYTE |
| 7003 typedef struct | |
| 7004 { | |
| 7005 int a, b, c; | |
| 7006 } decomp_T; | |
| 7007 | |
| 7008 | |
| 7009 /* 0xfb20 - 0xfb4f */ | |
| 297 | 7010 static decomp_T decomp_table[0xfb4f-0xfb20+1] = |
| 7 | 7011 { |
| 7012 {0x5e2,0,0}, /* 0xfb20 alt ayin */ | |
| 7013 {0x5d0,0,0}, /* 0xfb21 alt alef */ | |
| 7014 {0x5d3,0,0}, /* 0xfb22 alt dalet */ | |
| 7015 {0x5d4,0,0}, /* 0xfb23 alt he */ | |
| 7016 {0x5db,0,0}, /* 0xfb24 alt kaf */ | |
| 7017 {0x5dc,0,0}, /* 0xfb25 alt lamed */ | |
| 7018 {0x5dd,0,0}, /* 0xfb26 alt mem-sofit */ | |
| 7019 {0x5e8,0,0}, /* 0xfb27 alt resh */ | |
| 7020 {0x5ea,0,0}, /* 0xfb28 alt tav */ | |
| 7021 {'+', 0, 0}, /* 0xfb29 alt plus */ | |
| 7022 {0x5e9, 0x5c1, 0}, /* 0xfb2a shin+shin-dot */ | |
| 7023 {0x5e9, 0x5c2, 0}, /* 0xfb2b shin+sin-dot */ | |
| 7024 {0x5e9, 0x5c1, 0x5bc}, /* 0xfb2c shin+shin-dot+dagesh */ | |
| 7025 {0x5e9, 0x5c2, 0x5bc}, /* 0xfb2d shin+sin-dot+dagesh */ | |
| 7026 {0x5d0, 0x5b7, 0}, /* 0xfb2e alef+patah */ | |
| 7027 {0x5d0, 0x5b8, 0}, /* 0xfb2f alef+qamats */ | |
| 7028 {0x5d0, 0x5b4, 0}, /* 0xfb30 alef+hiriq */ | |
| 7029 {0x5d1, 0x5bc, 0}, /* 0xfb31 bet+dagesh */ | |
| 7030 {0x5d2, 0x5bc, 0}, /* 0xfb32 gimel+dagesh */ | |
| 7031 {0x5d3, 0x5bc, 0}, /* 0xfb33 dalet+dagesh */ | |
| 7032 {0x5d4, 0x5bc, 0}, /* 0xfb34 he+dagesh */ | |
| 7033 {0x5d5, 0x5bc, 0}, /* 0xfb35 vav+dagesh */ | |
| 7034 {0x5d6, 0x5bc, 0}, /* 0xfb36 zayin+dagesh */ | |
| 7035 {0xfb37, 0, 0}, /* 0xfb37 -- UNUSED */ | |
| 7036 {0x5d8, 0x5bc, 0}, /* 0xfb38 tet+dagesh */ | |
| 7037 {0x5d9, 0x5bc, 0}, /* 0xfb39 yud+dagesh */ | |
| 7038 {0x5da, 0x5bc, 0}, /* 0xfb3a kaf sofit+dagesh */ | |
| 7039 {0x5db, 0x5bc, 0}, /* 0xfb3b kaf+dagesh */ | |
| 7040 {0x5dc, 0x5bc, 0}, /* 0xfb3c lamed+dagesh */ | |
| 7041 {0xfb3d, 0, 0}, /* 0xfb3d -- UNUSED */ | |
| 7042 {0x5de, 0x5bc, 0}, /* 0xfb3e mem+dagesh */ | |
| 7043 {0xfb3f, 0, 0}, /* 0xfb3f -- UNUSED */ | |
| 7044 {0x5e0, 0x5bc, 0}, /* 0xfb40 nun+dagesh */ | |
| 7045 {0x5e1, 0x5bc, 0}, /* 0xfb41 samech+dagesh */ | |
| 7046 {0xfb42, 0, 0}, /* 0xfb42 -- UNUSED */ | |
| 7047 {0x5e3, 0x5bc, 0}, /* 0xfb43 pe sofit+dagesh */ | |
| 7048 {0x5e4, 0x5bc,0}, /* 0xfb44 pe+dagesh */ | |
| 7049 {0xfb45, 0, 0}, /* 0xfb45 -- UNUSED */ | |
| 7050 {0x5e6, 0x5bc, 0}, /* 0xfb46 tsadi+dagesh */ | |
| 7051 {0x5e7, 0x5bc, 0}, /* 0xfb47 qof+dagesh */ | |
| 7052 {0x5e8, 0x5bc, 0}, /* 0xfb48 resh+dagesh */ | |
| 7053 {0x5e9, 0x5bc, 0}, /* 0xfb49 shin+dagesh */ | |
| 7054 {0x5ea, 0x5bc, 0}, /* 0xfb4a tav+dagesh */ | |
| 7055 {0x5d5, 0x5b9, 0}, /* 0xfb4b vav+holam */ | |
| 7056 {0x5d1, 0x5bf, 0}, /* 0xfb4c bet+rafe */ | |
| 7057 {0x5db, 0x5bf, 0}, /* 0xfb4d kaf+rafe */ | |
| 7058 {0x5e4, 0x5bf, 0}, /* 0xfb4e pe+rafe */ | |
| 7059 {0x5d0, 0x5dc, 0} /* 0xfb4f alef-lamed */ | |
| 7060 }; | |
| 7061 | |
| 7062 static void | |
|
7833
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
7063 mb_decompose(int c, int *c1, int *c2, int *c3) |
| 7 | 7064 { |
| 7065 decomp_T d; | |
| 7066 | |
|
4505
d037b9cbdaaa
updated for version 7.3.1000
Bram Moolenaar <bram@vim.org>
parents:
4466
diff
changeset
|
7067 if (c >= 0xfb20 && c <= 0xfb4f) |
| 7 | 7068 { |
| 7069 d = decomp_table[c - 0xfb20]; | |
| 7070 *c1 = d.a; | |
| 7071 *c2 = d.b; | |
| 7072 *c3 = d.c; | |
| 7073 } | |
| 7074 else | |
| 7075 { | |
| 7076 *c1 = c; | |
| 7077 *c2 = *c3 = 0; | |
| 7078 } | |
| 7079 } | |
| 7080 #endif | |
| 7081 | |
| 7082 /* | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7083 * Compare two strings, ignore case if rex.reg_ic set. |
| 7 | 7084 * Return 0 if strings match, non-zero otherwise. |
| 7085 * Correct the length "*n" when composing characters are ignored. | |
| 7086 */ | |
| 7087 static int | |
|
7833
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
7088 cstrncmp(char_u *s1, char_u *s2, int *n) |
| 7 | 7089 { |
| 7090 int result; | |
| 7091 | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7092 if (!rex.reg_ic) |
| 7 | 7093 result = STRNCMP(s1, s2, *n); |
| 7094 else | |
| 7095 result = MB_STRNICMP(s1, s2, *n); | |
| 7096 | |
| 7097 #ifdef FEAT_MBYTE | |
| 7098 /* 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
|
7099 if (result != 0 && enc_utf8 && rex.reg_icombine) |
| 7 | 7100 { |
| 7101 char_u *str1, *str2; | |
| 7102 int c1, c2, c11, c12; | |
| 7103 int junk; | |
| 7104 | |
| 7105 /* we have to handle the strcmp ourselves, since it is necessary to | |
| 7106 * deal with the composing characters by ignoring them: */ | |
| 7107 str1 = s1; | |
| 7108 str2 = s2; | |
| 7109 c1 = c2 = 0; | |
| 507 | 7110 while ((int)(str1 - s1) < *n) |
| 7 | 7111 { |
| 7112 c1 = mb_ptr2char_adv(&str1); | |
| 7113 c2 = mb_ptr2char_adv(&str2); | |
| 7114 | |
| 7115 /* decompose the character if necessary, into 'base' characters | |
| 7116 * because I don't care about Arabic, I will hard-code the Hebrew | |
| 7117 * 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
|
7118 if (c1 != c2 && (!rex.reg_ic || utf_fold(c1) != utf_fold(c2))) |
| 7 | 7119 { |
| 7120 /* decomposition necessary? */ | |
| 7121 mb_decompose(c1, &c11, &junk, &junk); | |
| 7122 mb_decompose(c2, &c12, &junk, &junk); | |
| 7123 c1 = c11; | |
| 7124 c2 = c12; | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7125 if (c11 != c12 |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7126 && (!rex.reg_ic || utf_fold(c11) != utf_fold(c12))) |
| 7 | 7127 break; |
| 7128 } | |
| 7129 } | |
| 7130 result = c2 - c1; | |
| 7131 if (result == 0) | |
| 7132 *n = (int)(str2 - s2); | |
| 7133 } | |
| 7134 #endif | |
| 7135 | |
| 7136 return result; | |
| 7137 } | |
| 7138 | |
| 7139 /* | |
| 7140 * cstrchr: This function is used a lot for simple searches, keep it fast! | |
| 7141 */ | |
| 7142 static char_u * | |
|
7833
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
7143 cstrchr(char_u *s, int c) |
| 7 | 7144 { |
| 7145 char_u *p; | |
| 7146 int cc; | |
| 7147 | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7148 if (!rex.reg_ic |
| 7 | 7149 #ifdef FEAT_MBYTE |
| 7150 || (!enc_utf8 && mb_char2len(c) > 1) | |
| 7151 #endif | |
| 7152 ) | |
| 7153 return vim_strchr(s, c); | |
| 7154 | |
| 7155 /* tolower() and toupper() can be slow, comparing twice should be a lot | |
| 7156 * faster (esp. when using MS Visual C++!). | |
| 7157 * For UTF-8 need to use folded case. */ | |
| 7158 #ifdef FEAT_MBYTE | |
| 7159 if (enc_utf8 && c > 0x80) | |
| 7160 cc = utf_fold(c); | |
| 7161 else | |
| 7162 #endif | |
| 1347 | 7163 if (MB_ISUPPER(c)) |
| 7164 cc = MB_TOLOWER(c); | |
| 7165 else if (MB_ISLOWER(c)) | |
| 7166 cc = MB_TOUPPER(c); | |
| 7 | 7167 else |
| 7168 return vim_strchr(s, c); | |
| 7169 | |
| 7170 #ifdef FEAT_MBYTE | |
| 7171 if (has_mbyte) | |
| 7172 { | |
| 474 | 7173 for (p = s; *p != NUL; p += (*mb_ptr2len)(p)) |
| 7 | 7174 { |
| 7175 if (enc_utf8 && c > 0x80) | |
| 7176 { | |
| 7177 if (utf_fold(utf_ptr2char(p)) == cc) | |
| 7178 return p; | |
| 7179 } | |
| 7180 else if (*p == c || *p == cc) | |
| 7181 return p; | |
| 7182 } | |
| 7183 } | |
| 7184 else | |
| 7185 #endif | |
| 7186 /* Faster version for when there are no multi-byte characters. */ | |
| 7187 for (p = s; *p != NUL; ++p) | |
| 7188 if (*p == c || *p == cc) | |
| 7189 return p; | |
| 7190 | |
| 7191 return NULL; | |
| 7192 } | |
| 7193 | |
| 7194 /*************************************************************** | |
| 7195 * regsub stuff * | |
| 7196 ***************************************************************/ | |
| 7197 | |
| 7198 /* | |
| 7199 * We should define ftpr as a pointer to a function returning a pointer to | |
| 7200 * a function returning a pointer to a function ... | |
| 7201 * This is impossible, so we declare a pointer to a function returning a | |
| 7202 * pointer to a function returning void. This should work for all compilers. | |
| 7203 */ | |
|
7805
0b6c37dd858d
commit https://github.com/vim/vim/commit/baaa7e9ec7398a813e21285c272fa99792642077
Christian Brabandt <cb@256bit.org>
parents:
7009
diff
changeset
|
7204 typedef void (*(*fptr_T)(int *, int))(); |
|
0b6c37dd858d
commit https://github.com/vim/vim/commit/baaa7e9ec7398a813e21285c272fa99792642077
Christian Brabandt <cb@256bit.org>
parents:
7009
diff
changeset
|
7205 |
|
9589
bf204ab1ce7d
commit https://github.com/vim/vim/commit/72ab729c3dcdea0fba44d8e676602c847e841bcd
Christian Brabandt <cb@256bit.org>
parents:
9015
diff
changeset
|
7206 static int vim_regsub_both(char_u *source, typval_T *expr, char_u *dest, int copy, int magic, int backslash); |
| 7 | 7207 |
| 772 | 7208 static fptr_T |
|
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commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
7209 do_upper(int *d, int c) |
| 7 | 7210 { |
| 772 | 7211 *d = MB_TOUPPER(c); |
| 7212 | |
| 7213 return (fptr_T)NULL; | |
| 7 | 7214 } |
| 7215 | |
| 772 | 7216 static fptr_T |
|
7833
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
7217 do_Upper(int *d, int c) |
| 7 | 7218 { |
| 772 | 7219 *d = MB_TOUPPER(c); |
| 7220 | |
| 7221 return (fptr_T)do_Upper; | |
| 7222 } | |
| 7223 | |
| 7224 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
|
7225 do_lower(int *d, int c) |
| 772 | 7226 { |
| 7227 *d = MB_TOLOWER(c); | |
| 7228 | |
| 7229 return (fptr_T)NULL; | |
| 7230 } | |
| 7231 | |
| 7232 static fptr_T | |
|
7833
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
7233 do_Lower(int *d, int c) |
| 772 | 7234 { |
| 7235 *d = MB_TOLOWER(c); | |
| 7236 | |
| 7237 return (fptr_T)do_Lower; | |
| 7 | 7238 } |
| 7239 | |
| 7240 /* | |
| 7241 * regtilde(): Replace tildes in the pattern by the old pattern. | |
| 7242 * | |
| 7243 * Short explanation of the tilde: It stands for the previous replacement | |
| 7244 * pattern. If that previous pattern also contains a ~ we should go back a | |
| 7245 * step further... But we insert the previous pattern into the current one | |
| 7246 * and remember that. | |
| 772 | 7247 * This still does not handle the case where "magic" changes. So require the |
| 7248 * user to keep his hands off of "magic". | |
| 7 | 7249 * |
| 7250 * The tildes are parsed once before the first call to vim_regsub(). | |
| 7251 */ | |
| 7252 char_u * | |
|
7833
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
7253 regtilde(char_u *source, int magic) |
| 7 | 7254 { |
| 7255 char_u *newsub = source; | |
| 7256 char_u *tmpsub; | |
| 7257 char_u *p; | |
| 7258 int len; | |
| 7259 int prevlen; | |
| 7260 | |
| 7261 for (p = newsub; *p; ++p) | |
| 7262 { | |
| 7263 if ((*p == '~' && magic) || (*p == '\\' && *(p + 1) == '~' && !magic)) | |
| 7264 { | |
| 7265 if (reg_prev_sub != NULL) | |
| 7266 { | |
| 7267 /* length = len(newsub) - 1 + len(prev_sub) + 1 */ | |
| 7268 prevlen = (int)STRLEN(reg_prev_sub); | |
| 7269 tmpsub = alloc((unsigned)(STRLEN(newsub) + prevlen)); | |
| 7270 if (tmpsub != NULL) | |
| 7271 { | |
| 7272 /* copy prefix */ | |
| 7273 len = (int)(p - newsub); /* not including ~ */ | |
| 7274 mch_memmove(tmpsub, newsub, (size_t)len); | |
| 1209 | 7275 /* interpret tilde */ |
| 7 | 7276 mch_memmove(tmpsub + len, reg_prev_sub, (size_t)prevlen); |
| 7277 /* copy postfix */ | |
| 7278 if (!magic) | |
| 7279 ++p; /* back off \ */ | |
| 7280 STRCPY(tmpsub + len + prevlen, p + 1); | |
| 7281 | |
| 7282 if (newsub != source) /* already allocated newsub */ | |
| 7283 vim_free(newsub); | |
| 7284 newsub = tmpsub; | |
| 7285 p = newsub + len + prevlen; | |
| 7286 } | |
| 7287 } | |
| 7288 else if (magic) | |
| 1621 | 7289 STRMOVE(p, p + 1); /* remove '~' */ |
| 7 | 7290 else |
| 1621 | 7291 STRMOVE(p, p + 2); /* remove '\~' */ |
| 7 | 7292 --p; |
| 7293 } | |
| 7294 else | |
| 7295 { | |
| 7296 if (*p == '\\' && p[1]) /* skip escaped characters */ | |
| 7297 ++p; | |
| 7298 #ifdef FEAT_MBYTE | |
| 7299 if (has_mbyte) | |
| 474 | 7300 p += (*mb_ptr2len)(p) - 1; |
| 7 | 7301 #endif |
| 7302 } | |
| 7303 } | |
| 7304 | |
| 7305 vim_free(reg_prev_sub); | |
| 7306 if (newsub != source) /* newsub was allocated, just keep it */ | |
| 7307 reg_prev_sub = newsub; | |
| 7308 else /* no ~ found, need to save newsub */ | |
| 7309 reg_prev_sub = vim_strsave(newsub); | |
| 7310 return newsub; | |
| 7311 } | |
| 7312 | |
| 7313 #ifdef FEAT_EVAL | |
| 7314 static int can_f_submatch = FALSE; /* TRUE when submatch() can be used */ | |
| 7315 | |
|
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diff
changeset
|
7316 /* These pointers are used for reg_submatch(). Needed for when the |
|
d76ccdacb41e
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diff
changeset
|
7317 * substitution string is an expression that contains a call to substitute() |
|
d76ccdacb41e
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diff
changeset
|
7318 * and submatch(). */ |
|
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diff
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|
7319 typedef struct { |
|
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changeset
|
7320 regmatch_T *sm_match; |
|
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changeset
|
7321 regmmatch_T *sm_mmatch; |
|
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|
7322 linenr_T sm_firstlnum; |
|
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changeset
|
7323 linenr_T sm_maxline; |
|
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diff
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|
7324 int sm_line_lbr; |
|
d76ccdacb41e
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|
7325 } regsubmatch_T; |
|
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diff
changeset
|
7326 |
|
d76ccdacb41e
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diff
changeset
|
7327 static regsubmatch_T rsm; /* can only be used when can_f_submatch is TRUE */ |
| 7 | 7328 #endif |
| 7329 | |
| 7330 #if defined(FEAT_MODIFY_FNAME) || defined(FEAT_EVAL) || defined(PROTO) | |
|
9626
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|
7331 |
|
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|
7332 /* |
|
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changeset
|
7333 * Put the submatches in "argv[0]" which is a list passed into call_func() by |
|
172131507c85
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changeset
|
7334 * vim_regsub_both(). |
|
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|
7335 */ |
|
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changeset
|
7336 static int |
|
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changeset
|
7337 fill_submatch_list(int argc UNUSED, typval_T *argv, int argcount) |
|
172131507c85
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changeset
|
7338 { |
|
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diff
changeset
|
7339 listitem_T *li; |
|
172131507c85
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changeset
|
7340 int i; |
|
172131507c85
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changeset
|
7341 char_u *s; |
|
172131507c85
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diff
changeset
|
7342 |
|
172131507c85
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changeset
|
7343 if (argcount == 0) |
|
172131507c85
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changeset
|
7344 /* called function doesn't take an argument */ |
|
172131507c85
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changeset
|
7345 return 0; |
|
172131507c85
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diff
changeset
|
7346 |
|
172131507c85
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diff
changeset
|
7347 /* Relies on sl_list to be the first item in staticList10_T. */ |
|
172131507c85
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changeset
|
7348 init_static_list((staticList10_T *)(argv->vval.v_list)); |
|
172131507c85
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changeset
|
7349 |
|
172131507c85
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diff
changeset
|
7350 /* There are always 10 list items in staticList10_T. */ |
|
172131507c85
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changeset
|
7351 li = argv->vval.v_list->lv_first; |
|
172131507c85
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changeset
|
7352 for (i = 0; i < 10; ++i) |
|
172131507c85
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changeset
|
7353 { |
|
10245
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diff
changeset
|
7354 s = rsm.sm_match->startp[i]; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
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diff
changeset
|
7355 if (s == NULL || rsm.sm_match->endp[i] == NULL) |
|
9626
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changeset
|
7356 s = NULL; |
|
172131507c85
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|
7357 else |
|
10245
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diff
changeset
|
7358 s = vim_strnsave(s, (int)(rsm.sm_match->endp[i] - s)); |
|
9626
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diff
changeset
|
7359 li->li_tv.v_type = VAR_STRING; |
|
172131507c85
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parents:
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diff
changeset
|
7360 li->li_tv.vval.v_string = s; |
|
172131507c85
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diff
changeset
|
7361 li = li->li_next; |
|
172131507c85
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diff
changeset
|
7362 } |
|
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changeset
|
7363 return 1; |
|
172131507c85
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diff
changeset
|
7364 } |
|
172131507c85
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diff
changeset
|
7365 |
|
172131507c85
commit https://github.com/vim/vim/commit/df48fb456fb6bf63d94cad9b302ff01d8ee8d311
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diff
changeset
|
7366 static void |
|
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diff
changeset
|
7367 clear_submatch_list(staticList10_T *sl) |
|
172131507c85
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diff
changeset
|
7368 { |
|
172131507c85
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diff
changeset
|
7369 int i; |
|
172131507c85
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diff
changeset
|
7370 |
|
172131507c85
commit https://github.com/vim/vim/commit/df48fb456fb6bf63d94cad9b302ff01d8ee8d311
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diff
changeset
|
7371 for (i = 0; i < 10; ++i) |
|
172131507c85
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diff
changeset
|
7372 vim_free(sl->sl_items[i].li_tv.vval.v_string); |
|
172131507c85
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diff
changeset
|
7373 } |
|
172131507c85
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diff
changeset
|
7374 |
| 7 | 7375 /* |
| 7376 * vim_regsub() - perform substitutions after a vim_regexec() or | |
| 7377 * vim_regexec_multi() match. | |
| 7378 * | |
| 7379 * If "copy" is TRUE really copy into "dest". | |
| 7380 * If "copy" is FALSE nothing is copied, this is just to find out the length | |
| 7381 * of the result. | |
| 7382 * | |
| 7383 * If "backslash" is TRUE, a backslash will be removed later, need to double | |
| 7384 * them to keep them, and insert a backslash before a CR to avoid it being | |
| 7385 * replaced with a line break later. | |
| 7386 * | |
| 7387 * Note: The matched text must not change between the call of | |
| 7388 * vim_regexec()/vim_regexec_multi() and vim_regsub()! It would make the back | |
| 7389 * references invalid! | |
| 7390 * | |
| 7391 * Returns the size of the replacement, including terminating NUL. | |
| 7392 */ | |
| 7393 int | |
|
7833
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diff
changeset
|
7394 vim_regsub( |
|
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diff
changeset
|
7395 regmatch_T *rmp, |
|
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changeset
|
7396 char_u *source, |
|
9589
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changeset
|
7397 typval_T *expr, |
|
7833
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changeset
|
7398 char_u *dest, |
|
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changeset
|
7399 int copy, |
|
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changeset
|
7400 int magic, |
|
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changeset
|
7401 int backslash) |
| 7 | 7402 { |
|
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diff
changeset
|
7403 int result; |
|
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changeset
|
7404 regexec_T rex_save; |
|
d76ccdacb41e
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|
7405 int rex_in_use_save = rex_in_use; |
|
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changeset
|
7406 |
|
d76ccdacb41e
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changeset
|
7407 if (rex_in_use) |
|
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diff
changeset
|
7408 /* Being called recursively, save the state. */ |
|
d76ccdacb41e
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changeset
|
7409 rex_save = rex; |
|
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changeset
|
7410 rex_in_use = TRUE; |
|
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changeset
|
7411 |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7412 rex.reg_match = rmp; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7413 rex.reg_mmatch = NULL; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7414 rex.reg_maxline = 0; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7415 rex.reg_buf = curbuf; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7416 rex.reg_line_lbr = TRUE; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7417 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
|
7418 |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7419 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
|
7420 if (rex_in_use) |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7421 rex = rex_save; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7422 |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7423 return result; |
| 7 | 7424 } |
| 7425 #endif | |
| 7426 | |
| 7427 int | |
|
7833
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
7428 vim_regsub_multi( |
|
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
7429 regmmatch_T *rmp, |
|
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
7430 linenr_T lnum, |
|
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
7431 char_u *source, |
|
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
7432 char_u *dest, |
|
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
7433 int copy, |
|
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
7434 int magic, |
|
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
7435 int backslash) |
| 7 | 7436 { |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7437 int result; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7438 regexec_T rex_save; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7439 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
|
7440 |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7441 if (rex_in_use) |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7442 /* Being called recursively, save the state. */ |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7443 rex_save = rex; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7444 rex_in_use = TRUE; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7445 |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7446 rex.reg_match = NULL; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7447 rex.reg_mmatch = rmp; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7448 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
|
7449 rex.reg_firstlnum = lnum; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7450 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
|
7451 rex.reg_line_lbr = FALSE; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7452 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
|
7453 |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7454 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
|
7455 if (rex_in_use) |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7456 rex = rex_save; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7457 |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7458 return result; |
| 7 | 7459 } |
| 7460 | |
| 7461 static int | |
|
7833
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
7462 vim_regsub_both( |
|
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
7463 char_u *source, |
|
9589
bf204ab1ce7d
commit https://github.com/vim/vim/commit/72ab729c3dcdea0fba44d8e676602c847e841bcd
Christian Brabandt <cb@256bit.org>
parents:
9015
diff
changeset
|
7464 typval_T *expr, |
|
7833
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
7465 char_u *dest, |
|
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
7466 int copy, |
|
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
7467 int magic, |
|
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
7468 int backslash) |
| 7 | 7469 { |
| 7470 char_u *src; | |
| 7471 char_u *dst; | |
| 7472 char_u *s; | |
| 7473 int c; | |
| 772 | 7474 int cc; |
| 7 | 7475 int no = -1; |
| 4244 | 7476 fptr_T func_all = (fptr_T)NULL; |
| 7477 fptr_T func_one = (fptr_T)NULL; | |
| 7 | 7478 linenr_T clnum = 0; /* init for GCC */ |
| 7479 int len = 0; /* init for GCC */ | |
| 7480 #ifdef FEAT_EVAL | |
|
9589
bf204ab1ce7d
commit https://github.com/vim/vim/commit/72ab729c3dcdea0fba44d8e676602c847e841bcd
Christian Brabandt <cb@256bit.org>
parents:
9015
diff
changeset
|
7481 static char_u *eval_result = NULL; |
| 7 | 7482 #endif |
| 7483 | |
| 7484 /* Be paranoid... */ | |
|
9589
bf204ab1ce7d
commit https://github.com/vim/vim/commit/72ab729c3dcdea0fba44d8e676602c847e841bcd
Christian Brabandt <cb@256bit.org>
parents:
9015
diff
changeset
|
7485 if ((source == NULL && expr == NULL) || dest == NULL) |
| 7 | 7486 { |
|
15470
55ccc2d353bd
patch 8.1.0743: giving error messages is not flexible
Bram Moolenaar <Bram@vim.org>
parents:
15339
diff
changeset
|
7487 emsg(_(e_null)); |
| 7 | 7488 return 0; |
| 7489 } | |
| 7490 if (prog_magic_wrong()) | |
| 7491 return 0; | |
| 7492 src = source; | |
| 7493 dst = dest; | |
| 7494 | |
| 7495 /* | |
| 7496 * When the substitute part starts with "\=" evaluate it as an expression. | |
| 7497 */ | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7498 if (expr != NULL || (source[0] == '\\' && source[1] == '=')) |
| 7 | 7499 { |
| 7500 #ifdef FEAT_EVAL | |
| 7501 /* To make sure that the length doesn't change between checking the | |
| 7502 * length and copying the string, and to speed up things, the | |
| 7503 * resulting string is saved from the call with "copy" == FALSE to the | |
| 7504 * call with "copy" == TRUE. */ | |
| 7505 if (copy) | |
| 7506 { | |
| 7507 if (eval_result != NULL) | |
| 7508 { | |
| 7509 STRCPY(dest, eval_result); | |
| 7510 dst += STRLEN(eval_result); | |
|
13244
ac42c4b11dbc
patch 8.0.1496: clearing a pointer takes two lines
Christian Brabandt <cb@256bit.org>
parents:
12752
diff
changeset
|
7511 VIM_CLEAR(eval_result); |
| 7 | 7512 } |
| 7513 } | |
| 7514 else | |
| 7515 { | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7516 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
|
7517 regsubmatch_T rsm_save; |
| 7 | 7518 |
| 7519 vim_free(eval_result); | |
| 7520 | |
| 7521 /* The expression may contain substitute(), which calls us | |
| 7522 * 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
|
7523 * level. */ |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7524 if (can_f_submatch) |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7525 rsm_save = rsm; |
| 7 | 7526 can_f_submatch = TRUE; |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7527 rsm.sm_match = rex.reg_match; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7528 rsm.sm_mmatch = rex.reg_mmatch; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7529 rsm.sm_firstlnum = rex.reg_firstlnum; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7530 rsm.sm_maxline = rex.reg_maxline; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7531 rsm.sm_line_lbr = rex.reg_line_lbr; |
| 7 | 7532 |
|
9589
bf204ab1ce7d
commit https://github.com/vim/vim/commit/72ab729c3dcdea0fba44d8e676602c847e841bcd
Christian Brabandt <cb@256bit.org>
parents:
9015
diff
changeset
|
7533 if (expr != NULL) |
|
bf204ab1ce7d
commit https://github.com/vim/vim/commit/72ab729c3dcdea0fba44d8e676602c847e841bcd
Christian Brabandt <cb@256bit.org>
parents:
9015
diff
changeset
|
7534 { |
|
9626
172131507c85
commit https://github.com/vim/vim/commit/df48fb456fb6bf63d94cad9b302ff01d8ee8d311
Christian Brabandt <cb@256bit.org>
parents:
9589
diff
changeset
|
7535 typval_T argv[2]; |
|
9589
bf204ab1ce7d
commit https://github.com/vim/vim/commit/72ab729c3dcdea0fba44d8e676602c847e841bcd
Christian Brabandt <cb@256bit.org>
parents:
9015
diff
changeset
|
7536 int dummy; |
|
bf204ab1ce7d
commit https://github.com/vim/vim/commit/72ab729c3dcdea0fba44d8e676602c847e841bcd
Christian Brabandt <cb@256bit.org>
parents:
9015
diff
changeset
|
7537 char_u buf[NUMBUFLEN]; |
|
bf204ab1ce7d
commit https://github.com/vim/vim/commit/72ab729c3dcdea0fba44d8e676602c847e841bcd
Christian Brabandt <cb@256bit.org>
parents:
9015
diff
changeset
|
7538 typval_T rettv; |
|
9626
172131507c85
commit https://github.com/vim/vim/commit/df48fb456fb6bf63d94cad9b302ff01d8ee8d311
Christian Brabandt <cb@256bit.org>
parents:
9589
diff
changeset
|
7539 staticList10_T matchList; |
|
9589
bf204ab1ce7d
commit https://github.com/vim/vim/commit/72ab729c3dcdea0fba44d8e676602c847e841bcd
Christian Brabandt <cb@256bit.org>
parents:
9015
diff
changeset
|
7540 |
|
bf204ab1ce7d
commit https://github.com/vim/vim/commit/72ab729c3dcdea0fba44d8e676602c847e841bcd
Christian Brabandt <cb@256bit.org>
parents:
9015
diff
changeset
|
7541 rettv.v_type = VAR_STRING; |
|
bf204ab1ce7d
commit https://github.com/vim/vim/commit/72ab729c3dcdea0fba44d8e676602c847e841bcd
Christian Brabandt <cb@256bit.org>
parents:
9015
diff
changeset
|
7542 rettv.vval.v_string = NULL; |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7543 argv[0].v_type = VAR_LIST; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7544 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
|
7545 matchList.sl_list.lv_len = 0; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7546 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
|
7547 { |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7548 s = expr->vval.v_string; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7549 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
|
7550 1, argv, fill_submatch_list, |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7551 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
|
7552 } |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7553 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
|
7554 { |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7555 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
|
7556 |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7557 s = partial_name(partial); |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7558 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
|
7559 1, argv, fill_submatch_list, |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7560 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
|
7561 } |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7562 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
|
7563 /* fill_submatch_list() was called */ |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7564 clear_submatch_list(&matchList); |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7565 |
|
15211
de63593896b3
patch 8.1.0615: get_tv function names are not consistent
Bram Moolenaar <Bram@vim.org>
parents:
14862
diff
changeset
|
7566 eval_result = tv_get_string_buf_chk(&rettv, buf); |
|
9589
bf204ab1ce7d
commit https://github.com/vim/vim/commit/72ab729c3dcdea0fba44d8e676602c847e841bcd
Christian Brabandt <cb@256bit.org>
parents:
9015
diff
changeset
|
7567 if (eval_result != NULL) |
|
bf204ab1ce7d
commit https://github.com/vim/vim/commit/72ab729c3dcdea0fba44d8e676602c847e841bcd
Christian Brabandt <cb@256bit.org>
parents:
9015
diff
changeset
|
7568 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
|
7569 clear_tv(&rettv); |
|
9589
bf204ab1ce7d
commit https://github.com/vim/vim/commit/72ab729c3dcdea0fba44d8e676602c847e841bcd
Christian Brabandt <cb@256bit.org>
parents:
9015
diff
changeset
|
7570 } |
|
bf204ab1ce7d
commit https://github.com/vim/vim/commit/72ab729c3dcdea0fba44d8e676602c847e841bcd
Christian Brabandt <cb@256bit.org>
parents:
9015
diff
changeset
|
7571 else |
|
bf204ab1ce7d
commit https://github.com/vim/vim/commit/72ab729c3dcdea0fba44d8e676602c847e841bcd
Christian Brabandt <cb@256bit.org>
parents:
9015
diff
changeset
|
7572 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
|
7573 |
| 7 | 7574 if (eval_result != NULL) |
| 7575 { | |
|
2125
b8744d1982d1
updated for version 7.2.407
Bram Moolenaar <bram@zimbu.org>
parents:
2012
diff
changeset
|
7576 int had_backslash = FALSE; |
|
b8744d1982d1
updated for version 7.2.407
Bram Moolenaar <bram@zimbu.org>
parents:
2012
diff
changeset
|
7577 |
|
11127
506f5d8b7d8b
patch 8.0.0451: some macros are in lower case
Christian Brabandt <cb@256bit.org>
parents:
11121
diff
changeset
|
7578 for (s = eval_result; *s != NUL; MB_PTR_ADV(s)) |
| 7 | 7579 { |
| 2904 | 7580 /* Change NL to CR, so that it becomes a line break, |
| 7581 * unless called from vim_regexec_nl(). | |
| 7 | 7582 * Skip over a backslashed character. */ |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7583 if (*s == NL && !rsm.sm_line_lbr) |
| 7 | 7584 *s = CAR; |
| 7585 else if (*s == '\\' && s[1] != NUL) | |
|
2125
b8744d1982d1
updated for version 7.2.407
Bram Moolenaar <bram@zimbu.org>
parents:
2012
diff
changeset
|
7586 { |
| 7 | 7587 ++s; |
| 2173 | 7588 /* Change NL to CR here too, so that this works: |
| 7589 * :s/abc\\\ndef/\="aaa\\\nbbb"/ on text: | |
| 7590 * abc\ | |
| 7591 * def | |
| 2904 | 7592 * Not when called from vim_regexec_nl(). |
| 2173 | 7593 */ |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7594 if (*s == NL && !rsm.sm_line_lbr) |
| 2173 | 7595 *s = CAR; |
|
2125
b8744d1982d1
updated for version 7.2.407
Bram Moolenaar <bram@zimbu.org>
parents:
2012
diff
changeset
|
7596 had_backslash = TRUE; |
|
b8744d1982d1
updated for version 7.2.407
Bram Moolenaar <bram@zimbu.org>
parents:
2012
diff
changeset
|
7597 } |
|
b8744d1982d1
updated for version 7.2.407
Bram Moolenaar <bram@zimbu.org>
parents:
2012
diff
changeset
|
7598 } |
|
b8744d1982d1
updated for version 7.2.407
Bram Moolenaar <bram@zimbu.org>
parents:
2012
diff
changeset
|
7599 if (had_backslash && backslash) |
|
b8744d1982d1
updated for version 7.2.407
Bram Moolenaar <bram@zimbu.org>
parents:
2012
diff
changeset
|
7600 { |
|
b8744d1982d1
updated for version 7.2.407
Bram Moolenaar <bram@zimbu.org>
parents:
2012
diff
changeset
|
7601 /* Backslashes will be consumed, need to double them. */ |
|
b8744d1982d1
updated for version 7.2.407
Bram Moolenaar <bram@zimbu.org>
parents:
2012
diff
changeset
|
7602 s = vim_strsave_escaped(eval_result, (char_u *)"\\"); |
|
b8744d1982d1
updated for version 7.2.407
Bram Moolenaar <bram@zimbu.org>
parents:
2012
diff
changeset
|
7603 if (s != NULL) |
|
b8744d1982d1
updated for version 7.2.407
Bram Moolenaar <bram@zimbu.org>
parents:
2012
diff
changeset
|
7604 { |
|
b8744d1982d1
updated for version 7.2.407
Bram Moolenaar <bram@zimbu.org>
parents:
2012
diff
changeset
|
7605 vim_free(eval_result); |
|
b8744d1982d1
updated for version 7.2.407
Bram Moolenaar <bram@zimbu.org>
parents:
2012
diff
changeset
|
7606 eval_result = s; |
|
b8744d1982d1
updated for version 7.2.407
Bram Moolenaar <bram@zimbu.org>
parents:
2012
diff
changeset
|
7607 } |
| 7 | 7608 } |
| 7609 | |
| 7610 dst += STRLEN(eval_result); | |
| 7611 } | |
| 7612 | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7613 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
|
7614 if (can_f_submatch) |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7615 rsm = rsm_save; |
| 7 | 7616 } |
| 7617 #endif | |
| 7618 } | |
| 7619 else | |
| 7620 while ((c = *src++) != NUL) | |
| 7621 { | |
| 7622 if (c == '&' && magic) | |
| 7623 no = 0; | |
| 7624 else if (c == '\\' && *src != NUL) | |
| 7625 { | |
| 7626 if (*src == '&' && !magic) | |
| 7627 { | |
| 7628 ++src; | |
| 7629 no = 0; | |
| 7630 } | |
| 7631 else if ('0' <= *src && *src <= '9') | |
| 7632 { | |
| 7633 no = *src++ - '0'; | |
| 7634 } | |
| 7635 else if (vim_strchr((char_u *)"uUlLeE", *src)) | |
| 7636 { | |
| 7637 switch (*src++) | |
| 7638 { | |
| 4244 | 7639 case 'u': func_one = (fptr_T)do_upper; |
| 7 | 7640 continue; |
| 4244 | 7641 case 'U': func_all = (fptr_T)do_Upper; |
| 7 | 7642 continue; |
| 4244 | 7643 case 'l': func_one = (fptr_T)do_lower; |
| 7 | 7644 continue; |
| 4244 | 7645 case 'L': func_all = (fptr_T)do_Lower; |
| 7 | 7646 continue; |
| 7647 case 'e': | |
| 4244 | 7648 case 'E': func_one = func_all = (fptr_T)NULL; |
| 7 | 7649 continue; |
| 7650 } | |
| 7651 } | |
| 7652 } | |
| 7653 if (no < 0) /* Ordinary character. */ | |
| 7654 { | |
| 798 | 7655 if (c == K_SPECIAL && src[0] != NUL && src[1] != NUL) |
| 7656 { | |
| 1209 | 7657 /* Copy a special key as-is. */ |
| 798 | 7658 if (copy) |
| 7659 { | |
| 7660 *dst++ = c; | |
| 7661 *dst++ = *src++; | |
| 7662 *dst++ = *src++; | |
| 7663 } | |
| 7664 else | |
| 7665 { | |
| 7666 dst += 3; | |
| 7667 src += 2; | |
| 7668 } | |
| 7669 continue; | |
| 7670 } | |
| 7671 | |
| 7 | 7672 if (c == '\\' && *src != NUL) |
| 7673 { | |
| 7674 /* Check for abbreviations -- webb */ | |
| 7675 switch (*src) | |
| 7676 { | |
| 7677 case 'r': c = CAR; ++src; break; | |
| 7678 case 'n': c = NL; ++src; break; | |
| 7679 case 't': c = TAB; ++src; break; | |
| 7680 /* Oh no! \e already has meaning in subst pat :-( */ | |
| 7681 /* case 'e': c = ESC; ++src; break; */ | |
| 7682 case 'b': c = Ctrl_H; ++src; break; | |
| 7683 | |
| 7684 /* If "backslash" is TRUE the backslash will be removed | |
| 7685 * later. Used to insert a literal CR. */ | |
| 7686 default: if (backslash) | |
| 7687 { | |
| 7688 if (copy) | |
| 7689 *dst = '\\'; | |
| 7690 ++dst; | |
| 7691 } | |
| 7692 c = *src++; | |
| 7693 } | |
| 7694 } | |
| 798 | 7695 #ifdef FEAT_MBYTE |
| 7696 else if (has_mbyte) | |
| 7697 c = mb_ptr2char(src - 1); | |
| 7698 #endif | |
| 7 | 7699 |
| 7700 /* Write to buffer, if copy is set. */ | |
| 4244 | 7701 if (func_one != (fptr_T)NULL) |
| 7702 /* Turbo C complains without the typecast */ | |
| 7703 func_one = (fptr_T)(func_one(&cc, c)); | |
| 7704 else if (func_all != (fptr_T)NULL) | |
| 7705 /* Turbo C complains without the typecast */ | |
| 7706 func_all = (fptr_T)(func_all(&cc, c)); | |
| 7707 else /* just copy */ | |
| 772 | 7708 cc = c; |
| 7709 | |
| 7710 #ifdef FEAT_MBYTE | |
| 7711 if (has_mbyte) | |
| 7 | 7712 { |
|
2307
81527f127fb1
Fix: Composing characters in :s substitute text were dropped.
Bram Moolenaar <bram@vim.org>
parents:
2247
diff
changeset
|
7713 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
|
7714 |
| 7 | 7715 if (copy) |
| 772 | 7716 mb_char2bytes(cc, dst); |
| 7717 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
|
7718 if (enc_utf8) |
|
81527f127fb1
Fix: Composing characters in :s substitute text were dropped.
Bram Moolenaar <bram@vim.org>
parents:
2247
diff
changeset
|
7719 { |
|
81527f127fb1
Fix: Composing characters in :s substitute text were dropped.
Bram Moolenaar <bram@vim.org>
parents:
2247
diff
changeset
|
7720 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
|
7721 |
|
81527f127fb1
Fix: Composing characters in :s substitute text were dropped.
Bram Moolenaar <bram@vim.org>
parents:
2247
diff
changeset
|
7722 /* 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
|
7723 * 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
|
7724 if (clen < totlen) |
|
81527f127fb1
Fix: Composing characters in :s substitute text were dropped.
Bram Moolenaar <bram@vim.org>
parents:
2247
diff
changeset
|
7725 { |
|
81527f127fb1
Fix: Composing characters in :s substitute text were dropped.
Bram Moolenaar <bram@vim.org>
parents:
2247
diff
changeset
|
7726 if (copy) |
|
81527f127fb1
Fix: Composing characters in :s substitute text were dropped.
Bram Moolenaar <bram@vim.org>
parents:
2247
diff
changeset
|
7727 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
|
7728 (size_t)(totlen - clen)); |
|
81527f127fb1
Fix: Composing characters in :s substitute text were dropped.
Bram Moolenaar <bram@vim.org>
parents:
2247
diff
changeset
|
7729 dst += totlen - clen; |
|
81527f127fb1
Fix: Composing characters in :s substitute text were dropped.
Bram Moolenaar <bram@vim.org>
parents:
2247
diff
changeset
|
7730 } |
|
81527f127fb1
Fix: Composing characters in :s substitute text were dropped.
Bram Moolenaar <bram@vim.org>
parents:
2247
diff
changeset
|
7731 } |
|
81527f127fb1
Fix: Composing characters in :s substitute text were dropped.
Bram Moolenaar <bram@vim.org>
parents:
2247
diff
changeset
|
7732 src += totlen - 1; |
| 7 | 7733 } |
| 7734 else | |
| 7735 #endif | |
| 7736 if (copy) | |
| 772 | 7737 *dst = cc; |
| 7 | 7738 dst++; |
| 7739 } | |
| 7740 else | |
| 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 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
|
7745 if (clnum < 0 || rex.reg_mmatch->endpos[no].lnum < 0) |
| 7 | 7746 s = NULL; |
| 7747 else | |
| 7748 { | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7749 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
|
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 |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7752 - rex.reg_mmatch->startpos[no].col; |
| 7 | 7753 else |
| 7754 len = (int)STRLEN(s); | |
| 7755 } | |
| 7756 } | |
| 7757 else | |
| 7758 { | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7759 s = rex.reg_match->startp[no]; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7760 if (rex.reg_match->endp[no] == NULL) |
| 7 | 7761 s = NULL; |
| 7762 else | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7763 len = (int)(rex.reg_match->endp[no] - s); |
| 7 | 7764 } |
| 7765 if (s != NULL) | |
| 7766 { | |
| 7767 for (;;) | |
| 7768 { | |
| 7769 if (len == 0) | |
| 7770 { | |
| 7771 if (REG_MULTI) | |
| 7772 { | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7773 if (rex.reg_mmatch->endpos[no].lnum == clnum) |
| 7 | 7774 break; |
| 7775 if (copy) | |
| 7776 *dst = CAR; | |
| 7777 ++dst; | |
| 7778 s = reg_getline(++clnum); | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7779 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
|
7780 len = rex.reg_mmatch->endpos[no].col; |
| 7 | 7781 else |
| 7782 len = (int)STRLEN(s); | |
| 7783 } | |
| 7784 else | |
| 7785 break; | |
| 7786 } | |
| 7787 else if (*s == NUL) /* we hit NUL. */ | |
| 7788 { | |
| 7789 if (copy) | |
|
15470
55ccc2d353bd
patch 8.1.0743: giving error messages is not flexible
Bram Moolenaar <Bram@vim.org>
parents:
15339
diff
changeset
|
7790 emsg(_(e_re_damg)); |
| 7 | 7791 goto exit; |
| 7792 } | |
| 7793 else | |
| 7794 { | |
| 7795 if (backslash && (*s == CAR || *s == '\\')) | |
| 7796 { | |
| 7797 /* | |
| 7798 * Insert a backslash in front of a CR, otherwise | |
| 7799 * it will be replaced by a line break. | |
| 7800 * Number of backslashes will be halved later, | |
| 7801 * double them here. | |
| 7802 */ | |
| 7803 if (copy) | |
| 7804 { | |
| 7805 dst[0] = '\\'; | |
| 7806 dst[1] = *s; | |
| 7807 } | |
| 7808 dst += 2; | |
| 7809 } | |
| 7810 else | |
| 7811 { | |
| 772 | 7812 #ifdef FEAT_MBYTE |
| 7813 if (has_mbyte) | |
| 7814 c = mb_ptr2char(s); | |
| 7815 else | |
| 7816 #endif | |
| 7817 c = *s; | |
| 7818 | |
| 4244 | 7819 if (func_one != (fptr_T)NULL) |
| 7820 /* Turbo C complains without the typecast */ | |
| 7821 func_one = (fptr_T)(func_one(&cc, c)); | |
| 7822 else if (func_all != (fptr_T)NULL) | |
| 7823 /* Turbo C complains without the typecast */ | |
| 7824 func_all = (fptr_T)(func_all(&cc, c)); | |
| 7825 else /* just copy */ | |
| 772 | 7826 cc = c; |
| 7827 | |
| 7828 #ifdef FEAT_MBYTE | |
| 7829 if (has_mbyte) | |
| 7 | 7830 { |
| 1332 | 7831 int l; |
| 7832 | |
| 7833 /* Copy composing characters separately, one | |
| 7834 * at a time. */ | |
| 7835 if (enc_utf8) | |
| 7836 l = utf_ptr2len(s) - 1; | |
| 7837 else | |
| 7838 l = mb_ptr2len(s) - 1; | |
| 772 | 7839 |
| 7840 s += l; | |
| 7841 len -= l; | |
| 7842 if (copy) | |
| 7843 mb_char2bytes(cc, dst); | |
| 7844 dst += mb_char2len(cc) - 1; | |
| 7 | 7845 } |
| 772 | 7846 else |
| 7847 #endif | |
| 7848 if (copy) | |
| 7849 *dst = cc; | |
| 7850 dst++; | |
| 7 | 7851 } |
| 772 | 7852 |
| 7 | 7853 ++s; |
| 7854 --len; | |
| 7855 } | |
| 7856 } | |
| 7857 } | |
| 7858 no = -1; | |
| 7859 } | |
| 7860 } | |
| 7861 if (copy) | |
| 7862 *dst = NUL; | |
| 7863 | |
| 7864 exit: | |
| 7865 return (int)((dst - dest) + 1); | |
| 7866 } | |
| 7867 | |
| 7868 #ifdef FEAT_EVAL | |
| 7869 /* | |
| 2011 | 7870 * Call reg_getline() with the line numbers from the submatch. If a |
| 7871 * substitute() was used the reg_maxline and other values have been | |
| 7872 * overwritten. | |
| 7873 */ | |
| 7874 static char_u * | |
|
7833
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
7875 reg_getline_submatch(linenr_T lnum) |
| 2011 | 7876 { |
| 7877 char_u *s; | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7878 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
|
7879 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
|
7880 |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7881 rex.reg_firstlnum = rsm.sm_firstlnum; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7882 rex.reg_maxline = rsm.sm_maxline; |
| 2011 | 7883 |
| 7884 s = reg_getline(lnum); | |
| 7885 | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7886 rex.reg_firstlnum = save_first; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7887 rex.reg_maxline = save_max; |
| 2011 | 7888 return s; |
| 7889 } | |
| 7890 | |
| 7891 /* | |
| 1209 | 7892 * Used for the submatch() function: get the string from the n'th submatch in |
| 7 | 7893 * allocated memory. |
| 7894 * Returns NULL when not in a ":s" command and for a non-existing submatch. | |
| 7895 */ | |
| 7896 char_u * | |
|
7833
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
7897 reg_submatch(int no) |
| 7 | 7898 { |
| 7899 char_u *retval = NULL; | |
| 7900 char_u *s; | |
| 7901 int len; | |
| 7902 int round; | |
| 7903 linenr_T lnum; | |
| 7904 | |
| 840 | 7905 if (!can_f_submatch || no < 0) |
| 7 | 7906 return NULL; |
| 7907 | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7908 if (rsm.sm_match == NULL) |
| 7 | 7909 { |
| 7910 /* | |
| 7911 * First round: compute the length and allocate memory. | |
| 7912 * Second round: copy the text. | |
| 7913 */ | |
| 7914 for (round = 1; round <= 2; ++round) | |
| 7915 { | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7916 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
|
7917 if (lnum < 0 || rsm.sm_mmatch->endpos[no].lnum < 0) |
| 7 | 7918 return NULL; |
| 7919 | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7920 s = reg_getline_submatch(lnum) + rsm.sm_mmatch->startpos[no].col; |
| 7 | 7921 if (s == NULL) /* anti-crash check, cannot happen? */ |
| 7922 break; | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7923 if (rsm.sm_mmatch->endpos[no].lnum == lnum) |
| 7 | 7924 { |
| 7925 /* 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
|
7926 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
|
7927 - rsm.sm_mmatch->startpos[no].col; |
| 7 | 7928 if (round == 2) |
| 418 | 7929 vim_strncpy(retval, s, len); |
| 7 | 7930 ++len; |
| 7931 } | |
| 7932 else | |
| 7933 { | |
| 7934 /* Multiple lines: take start line from start col, middle | |
| 7935 * lines completely and end line up to end col. */ | |
| 7936 len = (int)STRLEN(s); | |
| 7937 if (round == 2) | |
| 7938 { | |
| 7939 STRCPY(retval, s); | |
| 7940 retval[len] = '\n'; | |
| 7941 } | |
| 7942 ++len; | |
| 7943 ++lnum; | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7944 while (lnum < rsm.sm_mmatch->endpos[no].lnum) |
| 7 | 7945 { |
| 2011 | 7946 s = reg_getline_submatch(lnum++); |
| 7 | 7947 if (round == 2) |
| 7948 STRCPY(retval + len, s); | |
| 7949 len += (int)STRLEN(s); | |
| 7950 if (round == 2) | |
| 7951 retval[len] = '\n'; | |
| 7952 ++len; | |
| 7953 } | |
| 7954 if (round == 2) | |
| 2011 | 7955 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
|
7956 rsm.sm_mmatch->endpos[no].col); |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7957 len += rsm.sm_mmatch->endpos[no].col; |
| 7 | 7958 if (round == 2) |
| 7959 retval[len] = NUL; | |
| 7960 ++len; | |
| 7961 } | |
| 7962 | |
| 840 | 7963 if (retval == NULL) |
| 7 | 7964 { |
| 7965 retval = lalloc((long_u)len, TRUE); | |
| 840 | 7966 if (retval == NULL) |
| 7 | 7967 return NULL; |
| 7968 } | |
| 7969 } | |
| 7970 } | |
| 7971 else | |
| 7972 { | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7973 s = rsm.sm_match->startp[no]; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7974 if (s == NULL || rsm.sm_match->endp[no] == NULL) |
| 7 | 7975 retval = NULL; |
| 7976 else | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7977 retval = vim_strnsave(s, (int)(rsm.sm_match->endp[no] - s)); |
| 7 | 7978 } |
| 7979 | |
| 7980 return retval; | |
| 7981 } | |
| 5794 | 7982 |
| 7983 /* | |
| 7984 * Used for the submatch() function with the optional non-zero argument: get | |
| 7985 * the list of strings from the n'th submatch in allocated memory with NULs | |
| 7986 * represented in NLs. | |
| 7987 * Returns a list of allocated strings. Returns NULL when not in a ":s" | |
| 7988 * command, for a non-existing submatch and for any error. | |
| 7989 */ | |
| 7990 list_T * | |
|
7833
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
7991 reg_submatch_list(int no) |
| 5794 | 7992 { |
| 7993 char_u *s; | |
| 7994 linenr_T slnum; | |
| 7995 linenr_T elnum; | |
| 7996 colnr_T scol; | |
| 7997 colnr_T ecol; | |
| 7998 int i; | |
| 7999 list_T *list; | |
| 8000 int error = FALSE; | |
| 8001 | |
| 8002 if (!can_f_submatch || no < 0) | |
| 8003 return NULL; | |
| 8004 | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
8005 if (rsm.sm_match == NULL) |
| 5794 | 8006 { |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
8007 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
|
8008 elnum = rsm.sm_mmatch->endpos[no].lnum; |
| 5794 | 8009 if (slnum < 0 || elnum < 0) |
| 8010 return NULL; | |
| 8011 | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
8012 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
|
8013 ecol = rsm.sm_mmatch->endpos[no].col; |
| 5794 | 8014 |
| 8015 list = list_alloc(); | |
| 8016 if (list == NULL) | |
| 8017 return NULL; | |
| 8018 | |
| 8019 s = reg_getline_submatch(slnum) + scol; | |
| 8020 if (slnum == elnum) | |
| 8021 { | |
| 8022 if (list_append_string(list, s, ecol - scol) == FAIL) | |
| 8023 error = TRUE; | |
| 8024 } | |
| 8025 else | |
| 8026 { | |
| 8027 if (list_append_string(list, s, -1) == FAIL) | |
| 8028 error = TRUE; | |
| 8029 for (i = 1; i < elnum - slnum; i++) | |
| 8030 { | |
| 8031 s = reg_getline_submatch(slnum + i); | |
| 8032 if (list_append_string(list, s, -1) == FAIL) | |
| 8033 error = TRUE; | |
| 8034 } | |
| 8035 s = reg_getline_submatch(elnum); | |
| 8036 if (list_append_string(list, s, ecol) == FAIL) | |
| 8037 error = TRUE; | |
| 8038 } | |
| 8039 } | |
| 8040 else | |
| 8041 { | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
8042 s = rsm.sm_match->startp[no]; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
8043 if (s == NULL || rsm.sm_match->endp[no] == NULL) |
| 5794 | 8044 return NULL; |
| 8045 list = list_alloc(); | |
| 8046 if (list == NULL) | |
| 8047 return NULL; | |
| 8048 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
|
8049 (int)(rsm.sm_match->endp[no] - s)) == FAIL) |
| 5794 | 8050 error = TRUE; |
| 8051 } | |
| 8052 | |
| 8053 if (error) | |
| 8054 { | |
|
8863
e1b84109506a
commit https://github.com/vim/vim/commit/107e1eef1df3b786ad3ad49fbdb9e058649303b5
Christian Brabandt <cb@256bit.org>
parents:
8825
diff
changeset
|
8055 list_free(list); |
| 5794 | 8056 return NULL; |
| 8057 } | |
| 8058 return list; | |
| 8059 } | |
| 7 | 8060 #endif |
| 4444 | 8061 |
| 8062 static regengine_T bt_regengine = | |
| 8063 { | |
| 8064 bt_regcomp, | |
|
4805
66803af09906
updated for version 7.3.1149
Bram Moolenaar <bram@vim.org>
parents:
4770
diff
changeset
|
8065 bt_regfree, |
| 4444 | 8066 bt_regexec_nl, |
| 6328 | 8067 bt_regexec_multi, |
| 8068 (char_u *)"" | |
| 4444 | 8069 }; |
| 8070 | |
| 8071 #include "regexp_nfa.c" | |
| 8072 | |
| 8073 static regengine_T nfa_regengine = | |
| 8074 { | |
| 8075 nfa_regcomp, | |
|
4805
66803af09906
updated for version 7.3.1149
Bram Moolenaar <bram@vim.org>
parents:
4770
diff
changeset
|
8076 nfa_regfree, |
| 4444 | 8077 nfa_regexec_nl, |
| 6328 | 8078 nfa_regexec_multi, |
| 8079 (char_u *)"" | |
| 4444 | 8080 }; |
| 8081 | |
| 8082 /* Which regexp engine to use? Needed for vim_regcomp(). | |
| 8083 * Must match with 'regexpengine'. */ | |
| 8084 static int regexp_engine = 0; | |
| 6328 | 8085 |
| 4444 | 8086 #ifdef DEBUG |
| 8087 static char_u regname[][30] = { | |
| 8088 "AUTOMATIC Regexp Engine", | |
|
4579
7a2be4a39423
updated for version 7.3.1037
Bram Moolenaar <bram@vim.org>
parents:
4505
diff
changeset
|
8089 "BACKTRACKING Regexp Engine", |
| 4444 | 8090 "NFA Regexp Engine" |
| 8091 }; | |
| 8092 #endif | |
| 8093 | |
| 8094 /* | |
| 8095 * Compile a regular expression into internal code. | |
|
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|
8096 * Returns the program in allocated memory. |
|
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diff
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|
8097 * Use vim_regfree() to free the memory. |
|
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|
8098 * Returns NULL for an error. |
| 4444 | 8099 */ |
| 8100 regprog_T * | |
|
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diff
changeset
|
8101 vim_regcomp(char_u *expr_arg, int re_flags) |
| 4444 | 8102 { |
| 8103 regprog_T *prog = NULL; | |
| 8104 char_u *expr = expr_arg; | |
| 8105 | |
| 8106 regexp_engine = p_re; | |
| 8107 | |
| 8108 /* Check for prefix "\%#=", that sets the regexp engine */ | |
| 8109 if (STRNCMP(expr, "\\%#=", 4) == 0) | |
| 8110 { | |
| 8111 int newengine = expr[4] - '0'; | |
| 8112 | |
| 8113 if (newengine == AUTOMATIC_ENGINE | |
| 8114 || newengine == BACKTRACKING_ENGINE | |
| 8115 || newengine == NFA_ENGINE) | |
| 8116 { | |
| 8117 regexp_engine = expr[4] - '0'; | |
| 8118 expr += 5; | |
| 8119 #ifdef DEBUG | |
|
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|
8120 smsg("New regexp mode selected (%d): %s", |
| 5897 | 8121 regexp_engine, regname[newengine]); |
| 4444 | 8122 #endif |
| 8123 } | |
| 8124 else | |
| 8125 { | |
|
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|
8126 emsg(_("E864: \\%#= can only be followed by 0, 1, or 2. The automatic engine will be used ")); |
| 4444 | 8127 regexp_engine = AUTOMATIC_ENGINE; |
| 8128 } | |
| 8129 } | |
|
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|
8130 #ifdef DEBUG |
| 4444 | 8131 bt_regengine.expr = expr; |
| 8132 nfa_regengine.expr = expr; | |
|
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|
8133 #endif |
| 4444 | 8134 |
| 8135 /* | |
| 8136 * First try the NFA engine, unless backtracking was requested. | |
| 8137 */ | |
| 8138 if (regexp_engine != BACKTRACKING_ENGINE) | |
|
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changeset
|
8139 prog = nfa_regengine.regcomp(expr, |
| 6533 | 8140 re_flags + (regexp_engine == AUTOMATIC_ENGINE ? RE_AUTO : 0)); |
| 4444 | 8141 else |
| 8142 prog = bt_regengine.regcomp(expr, re_flags); | |
| 8143 | |
| 6328 | 8144 /* Check for error compiling regexp with initial engine. */ |
| 8145 if (prog == NULL) | |
| 4444 | 8146 { |
| 4460 | 8147 #ifdef BT_REGEXP_DEBUG_LOG |
| 4444 | 8148 if (regexp_engine != BACKTRACKING_ENGINE) /* debugging log for NFA */ |
| 8149 { | |
| 8150 FILE *f; | |
| 4460 | 8151 f = fopen(BT_REGEXP_DEBUG_LOG_NAME, "a"); |
| 4444 | 8152 if (f) |
| 8153 { | |
|
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|
8154 fprintf(f, "Syntax error in \"%s\"\n", expr); |
| 4444 | 8155 fclose(f); |
| 8156 } | |
| 8157 else | |
|
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|
8158 semsg("(NFA) Could not open \"%s\" to write !!!", |
|
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|
8159 BT_REGEXP_DEBUG_LOG_NAME); |
| 4444 | 8160 } |
| 8161 #endif | |
| 8162 /* | |
| 6328 | 8163 * If the NFA engine failed, try the backtracking engine. |
| 6533 | 8164 * The NFA engine also fails for patterns that it can't handle well |
| 8165 * but are still valid patterns, thus a retry should work. | |
| 8166 */ | |
| 4444 | 8167 if (regexp_engine == AUTOMATIC_ENGINE) |
| 6328 | 8168 { |
| 6533 | 8169 regexp_engine = BACKTRACKING_ENGINE; |
|
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|
8170 prog = bt_regengine.regcomp(expr, re_flags); |
| 6328 | 8171 } |
|
4762
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|
8172 } |
| 4444 | 8173 |
| 6328 | 8174 if (prog != NULL) |
| 8175 { | |
| 8176 /* Store the info needed to call regcomp() again when the engine turns | |
| 8177 * out to be very slow when executing it. */ | |
| 8178 prog->re_engine = regexp_engine; | |
| 8179 prog->re_flags = re_flags; | |
| 8180 } | |
| 8181 | |
| 4444 | 8182 return prog; |
| 8183 } | |
| 8184 | |
| 8185 /* | |
|
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|
8186 * Free a compiled regexp program, returned by vim_regcomp(). |
|
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|
8187 */ |
|
66803af09906
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|
8188 void |
|
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diff
changeset
|
8189 vim_regfree(regprog_T *prog) |
|
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|
8190 { |
|
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|
8191 if (prog != NULL) |
|
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|
8192 prog->engine->regfree(prog); |
|
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|
8193 } |
|
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|
8194 |
| 6328 | 8195 #ifdef FEAT_EVAL |
| 8196 static void | |
|
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diff
changeset
|
8197 report_re_switch(char_u *pat) |
| 6328 | 8198 { |
| 8199 if (p_verbose > 0) | |
| 8200 { | |
| 8201 verbose_enter(); | |
| 8202 MSG_PUTS(_("Switching to backtracking RE engine for pattern: ")); | |
| 8203 MSG_PUTS(pat); | |
| 8204 verbose_leave(); | |
| 8205 } | |
| 8206 } | |
| 8207 #endif | |
| 8208 | |
|
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|
8209 /* |
|
15306
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|
8210 * Return whether "prog" is currently being executed. |
|
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diff
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|
8211 */ |
|
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|
8212 int |
|
7fff2d18e191
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diff
changeset
|
8213 regprog_in_use(regprog_T *prog) |
|
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|
8214 { |
|
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|
8215 return prog->re_in_use; |
|
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|
8216 } |
|
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changeset
|
8217 |
|
7fff2d18e191
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diff
changeset
|
8218 /* |
| 4444 | 8219 * Match a regexp against a string. |
| 8220 * "rmp->regprog" is a compiled regexp as returned by vim_regcomp(). | |
| 6375 | 8221 * Note: "rmp->regprog" may be freed and changed. |
| 4444 | 8222 * Uses curbuf for line count and 'iskeyword'. |
| 6328 | 8223 * When "nl" is TRUE consider a "\n" in "line" to be a line break. |
| 4444 | 8224 * |
| 8225 * Return TRUE if there is a match, FALSE if not. | |
| 8226 */ | |
| 6328 | 8227 static int |
|
11529
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11527
diff
changeset
|
8228 vim_regexec_string( |
|
7833
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diff
changeset
|
8229 regmatch_T *rmp, |
|
c079097365f3
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diff
changeset
|
8230 char_u *line, /* string to match against */ |
|
c079097365f3
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7807
diff
changeset
|
8231 colnr_T col, /* column to start looking for match */ |
|
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
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diff
changeset
|
8232 int nl) |
| 6328 | 8233 { |
|
10245
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10187
diff
changeset
|
8234 int result; |
|
d76ccdacb41e
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Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
8235 regexec_T rex_save; |
|
d76ccdacb41e
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diff
changeset
|
8236 int rex_in_use_save = rex_in_use; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
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diff
changeset
|
8237 |
|
14354
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diff
changeset
|
8238 // Cannot use the same prog recursively, it contains state. |
|
ffd834f893aa
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diff
changeset
|
8239 if (rmp->regprog->re_in_use) |
|
ffd834f893aa
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diff
changeset
|
8240 { |
|
15470
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patch 8.1.0743: giving error messages is not flexible
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changeset
|
8241 emsg(_(e_recursive)); |
|
14354
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diff
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|
8242 return FALSE; |
|
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diff
changeset
|
8243 } |
|
ffd834f893aa
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diff
changeset
|
8244 rmp->regprog->re_in_use = TRUE; |
|
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
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diff
changeset
|
8245 |
|
10245
d76ccdacb41e
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diff
changeset
|
8246 if (rex_in_use) |
|
14354
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diff
changeset
|
8247 // Being called recursively, save the state. |
|
10245
d76ccdacb41e
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diff
changeset
|
8248 rex_save = rex; |
|
d76ccdacb41e
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diff
changeset
|
8249 rex_in_use = TRUE; |
|
14354
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changeset
|
8250 |
|
10245
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diff
changeset
|
8251 rex.reg_startp = NULL; |
|
d76ccdacb41e
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diff
changeset
|
8252 rex.reg_endp = NULL; |
|
d76ccdacb41e
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diff
changeset
|
8253 rex.reg_startpos = NULL; |
|
d76ccdacb41e
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diff
changeset
|
8254 rex.reg_endpos = NULL; |
|
d76ccdacb41e
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changeset
|
8255 |
|
d76ccdacb41e
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10187
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changeset
|
8256 result = rmp->regprog->engine->regexec_nl(rmp, line, col, nl); |
|
14358
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|
8257 rmp->regprog->re_in_use = FALSE; |
| 6328 | 8258 |
| 8259 /* NFA engine aborted because it's very slow. */ | |
| 8260 if (rmp->regprog->re_engine == AUTOMATIC_ENGINE | |
| 8261 && result == NFA_TOO_EXPENSIVE) | |
| 8262 { | |
| 8263 int save_p_re = p_re; | |
| 8264 int re_flags = rmp->regprog->re_flags; | |
| 8265 char_u *pat = vim_strsave(((nfa_regprog_T *)rmp->regprog)->pattern); | |
| 8266 | |
| 8267 p_re = BACKTRACKING_ENGINE; | |
| 8268 vim_regfree(rmp->regprog); | |
| 8269 if (pat != NULL) | |
| 8270 { | |
| 8271 #ifdef FEAT_EVAL | |
| 8272 report_re_switch(pat); | |
| 8273 #endif | |
| 8274 rmp->regprog = vim_regcomp(pat, re_flags); | |
| 8275 if (rmp->regprog != NULL) | |
|
14358
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|
8276 { |
|
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changeset
|
8277 rmp->regprog->re_in_use = TRUE; |
| 6328 | 8278 result = rmp->regprog->engine->regexec_nl(rmp, line, col, nl); |
|
14358
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|
8279 rmp->regprog->re_in_use = FALSE; |
|
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changeset
|
8280 } |
| 6328 | 8281 vim_free(pat); |
| 8282 } | |
| 8283 | |
| 8284 p_re = save_p_re; | |
| 8285 } | |
|
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changeset
|
8286 |
|
d76ccdacb41e
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diff
changeset
|
8287 rex_in_use = rex_in_use_save; |
|
d76ccdacb41e
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changeset
|
8288 if (rex_in_use) |
|
d76ccdacb41e
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changeset
|
8289 rex = rex_save; |
|
d76ccdacb41e
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changeset
|
8290 |
| 6390 | 8291 return result > 0; |
| 6328 | 8292 } |
| 8293 | |
| 6375 | 8294 /* |
| 8295 * Note: "*prog" may be freed and changed. | |
| 6390 | 8296 * Return TRUE if there is a match, FALSE if not. |
| 6375 | 8297 */ |
| 8298 int | |
|
7833
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7807
diff
changeset
|
8299 vim_regexec_prog( |
|
c079097365f3
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7807
diff
changeset
|
8300 regprog_T **prog, |
|
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Christian Brabandt <cb@256bit.org>
parents:
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changeset
|
8301 int ignore_case, |
|
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
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parents:
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diff
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|
8302 char_u *line, |
|
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
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diff
changeset
|
8303 colnr_T col) |
| 6375 | 8304 { |
|
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|
8305 int r; |
|
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|
8306 regmatch_T regmatch; |
| 6375 | 8307 |
| 8308 regmatch.regprog = *prog; | |
| 8309 regmatch.rm_ic = ignore_case; | |
|
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|
8310 r = vim_regexec_string(®match, line, col, FALSE); |
| 6375 | 8311 *prog = regmatch.regprog; |
| 8312 return r; | |
| 8313 } | |
| 8314 | |
| 8315 /* | |
| 8316 * Note: "rmp->regprog" may be freed and changed. | |
| 6390 | 8317 * Return TRUE if there is a match, FALSE if not. |
| 6375 | 8318 */ |
| 4444 | 8319 int |
|
7833
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diff
changeset
|
8320 vim_regexec(regmatch_T *rmp, char_u *line, colnr_T col) |
| 4444 | 8321 { |
|
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8322 return vim_regexec_string(rmp, line, col, FALSE); |
| 4444 | 8323 } |
| 8324 | |
| 8325 #if defined(FEAT_MODIFY_FNAME) || defined(FEAT_EVAL) \ | |
| 8326 || defined(FIND_REPLACE_DIALOG) || defined(PROTO) | |
| 8327 /* | |
| 8328 * Like vim_regexec(), but consider a "\n" in "line" to be a line break. | |
| 6375 | 8329 * Note: "rmp->regprog" may be freed and changed. |
| 6390 | 8330 * Return TRUE if there is a match, FALSE if not. |
| 4444 | 8331 */ |
| 8332 int | |
|
7833
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diff
changeset
|
8333 vim_regexec_nl(regmatch_T *rmp, char_u *line, colnr_T col) |
| 4444 | 8334 { |
|
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8335 return vim_regexec_string(rmp, line, col, TRUE); |
| 4444 | 8336 } |
| 8337 #endif | |
| 8338 | |
| 8339 /* | |
| 8340 * Match a regexp against multiple lines. | |
|
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8341 * "rmp->regprog" must be a compiled regexp as returned by vim_regcomp(). |
|
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8342 * Note: "rmp->regprog" may be freed and changed, even set to NULL. |
| 4444 | 8343 * Uses curbuf for line count and 'iskeyword'. |
| 8344 * | |
| 8345 * Return zero if there is no match. Return number of lines contained in the | |
| 8346 * match otherwise. | |
| 8347 */ | |
| 8348 long | |
|
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diff
changeset
|
8349 vim_regexec_multi( |
|
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commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
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changeset
|
8350 regmmatch_T *rmp, |
|
13244
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8351 win_T *win, /* window in which to search or NULL */ |
|
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8352 buf_T *buf, /* buffer in which to search */ |
|
ac42c4b11dbc
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|
8353 linenr_T lnum, /* nr of line to start looking for match */ |
|
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|
8354 colnr_T col, /* column to start looking for match */ |
|
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8355 proftime_T *tm, /* timeout limit or NULL */ |
|
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8356 int *timed_out) /* flag is set when timeout limit reached */ |
| 4444 | 8357 { |
|
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diff
changeset
|
8358 int result; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
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diff
changeset
|
8359 regexec_T rex_save; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
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diff
changeset
|
8360 int rex_in_use_save = rex_in_use; |
|
d76ccdacb41e
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diff
changeset
|
8361 |
|
14354
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8362 // Cannot use the same prog recursively, it contains state. |
|
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|
8363 if (rmp->regprog->re_in_use) |
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|
8364 { |
|
15470
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patch 8.1.0743: giving error messages is not flexible
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|
8365 emsg(_(e_recursive)); |
|
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8366 return FALSE; |
|
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8367 } |
|
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|
8368 rmp->regprog->re_in_use = TRUE; |
|
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|
8369 |
|
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|
8370 if (rex_in_use) |
|
d76ccdacb41e
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diff
changeset
|
8371 /* Being called recursively, save the state. */ |
|
d76ccdacb41e
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diff
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|
8372 rex_save = rex; |
|
d76ccdacb41e
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|
8373 rex_in_use = TRUE; |
|
d76ccdacb41e
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|
8374 |
|
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|
8375 result = rmp->regprog->engine->regexec_multi( |
|
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|
8376 rmp, win, buf, lnum, col, tm, timed_out); |
|
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|
8377 rmp->regprog->re_in_use = FALSE; |
| 6328 | 8378 |
| 8379 /* NFA engine aborted because it's very slow. */ | |
| 8380 if (rmp->regprog->re_engine == AUTOMATIC_ENGINE | |
| 8381 && result == NFA_TOO_EXPENSIVE) | |
| 8382 { | |
| 8383 int save_p_re = p_re; | |
| 8384 int re_flags = rmp->regprog->re_flags; | |
| 8385 char_u *pat = vim_strsave(((nfa_regprog_T *)rmp->regprog)->pattern); | |
| 8386 | |
| 8387 p_re = BACKTRACKING_ENGINE; | |
| 8388 vim_regfree(rmp->regprog); | |
| 8389 if (pat != NULL) | |
| 8390 { | |
| 8391 #ifdef FEAT_EVAL | |
| 8392 report_re_switch(pat); | |
| 8393 #endif | |
|
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|
8394 #ifdef FEAT_SYN_HL |
|
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|
8395 // checking for \z misuse was already done when compiling for NFA, |
|
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|
8396 // allow all here |
|
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8397 reg_do_extmatch = REX_ALL; |
|
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|
8398 #endif |
| 6328 | 8399 rmp->regprog = vim_regcomp(pat, re_flags); |
|
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|
8400 #ifdef FEAT_SYN_HL |
|
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|
8401 reg_do_extmatch = 0; |
|
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|
8402 #endif |
|
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|
8403 |
| 6328 | 8404 if (rmp->regprog != NULL) |
|
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|
8405 { |
|
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|
8406 rmp->regprog->re_in_use = TRUE; |
| 6328 | 8407 result = rmp->regprog->engine->regexec_multi( |
|
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|
8408 rmp, win, buf, lnum, col, tm, timed_out); |
|
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|
8409 rmp->regprog->re_in_use = FALSE; |
|
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|
8410 } |
| 6328 | 8411 vim_free(pat); |
| 8412 } | |
| 8413 p_re = save_p_re; | |
| 8414 } | |
| 8415 | |
|
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10187
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|
8416 rex_in_use = rex_in_use_save; |
|
d76ccdacb41e
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10187
diff
changeset
|
8417 if (rex_in_use) |
|
d76ccdacb41e
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changeset
|
8418 rex = rex_save; |
|
d76ccdacb41e
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Christian Brabandt <cb@256bit.org>
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diff
changeset
|
8419 |
| 6390 | 8420 return result <= 0 ? 0 : result; |
| 4444 | 8421 } |