Mercurial > vim
annotate src/regexp.c @ 16435:65d5f7039131 v8.1.1222
patch 8.1.1222: build still fails on MS-Windows
commit https://github.com/vim/vim/commit/dcaa54dded7c7ef9b2217a205d23301d313e96dc
Author: Bram Moolenaar <Bram@vim.org>
Date: Sat Apr 27 22:45:00 2019 +0200
patch 8.1.1222: build still fails on MS-Windows
Problem: Build still fails on MS-Windows.
Solution: Move another declaration to start of block.
| author | Bram Moolenaar <Bram@vim.org> |
|---|---|
| date | Sat, 27 Apr 2019 23:00:04 +0200 |
| parents | a849fe2a4b21 |
| children | a1ba0bd74e7d |
| 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
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1 /* vi:set ts=8 sts=4 sw=4 noet: |
| 7 | 2 * |
| 3 * Handling of regular expressions: vim_regcomp(), vim_regexec(), vim_regsub() | |
| 4 * | |
| 5 * NOTICE: | |
| 6 * | |
| 7 * This is NOT the original regular expression code as written by Henry | |
| 8 * Spencer. This code has been modified specifically for use with the VIM | |
| 9 * editor, and should not be used separately from Vim. If you want a good | |
| 10 * regular expression library, get the original code. The copyright notice | |
| 11 * that follows is from the original. | |
| 12 * | |
| 13 * END NOTICE | |
| 14 * | |
| 15 * Copyright (c) 1986 by University of Toronto. | |
| 16 * Written by Henry Spencer. Not derived from licensed software. | |
| 17 * | |
| 18 * Permission is granted to anyone to use this software for any | |
| 19 * purpose on any computer system, and to redistribute it freely, | |
| 20 * subject to the following restrictions: | |
| 21 * | |
| 22 * 1. The author is not responsible for the consequences of use of | |
| 23 * this software, no matter how awful, even if they arise | |
| 24 * from defects in it. | |
| 25 * | |
| 26 * 2. The origin of this software must not be misrepresented, either | |
| 27 * by explicit claim or by omission. | |
| 28 * | |
| 29 * 3. Altered versions must be plainly marked as such, and must not | |
| 30 * be misrepresented as being the original software. | |
| 31 * | |
| 32 * Beware that some of this code is subtly aware of the way operator | |
| 33 * precedence is structured in regular expressions. Serious changes in | |
| 34 * regular-expression syntax might require a total rethink. | |
| 35 * | |
| 24 | 36 * Changes have been made by Tony Andrews, Olaf 'Rhialto' Seibert, Robert |
| 37 * Webb, Ciaran McCreesh and Bram Moolenaar. | |
| 7 | 38 * Named character class support added by Walter Briscoe (1998 Jul 01) |
| 39 */ | |
| 40 | |
|
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patch 8.1.1202: always get regexp debugging logs when building with -DDEBUG
Bram Moolenaar <Bram@vim.org>
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41 // By default: do not create debugging logs or files related to regular |
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patch 8.1.1202: always get regexp debugging logs when building with -DDEBUG
Bram Moolenaar <Bram@vim.org>
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42 // expressions, even when compiling with -DDEBUG. |
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43 // Uncomment the second line to get the regexp debugging. |
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patch 8.1.1202: always get regexp debugging logs when building with -DDEBUG
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44 #undef DEBUG |
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patch 8.1.1202: always get regexp debugging logs when building with -DDEBUG
Bram Moolenaar <Bram@vim.org>
parents:
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diff
changeset
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45 // #define DEBUG |
| 4444 | 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 static char_u e_large_class[] = N_("E945: Range too large in character class"); |
| 4444 | 363 static char_u e_unmatchedpp[] = N_("E53: Unmatched %s%%("); |
| 364 static char_u e_unmatchedp[] = N_("E54: Unmatched %s("); | |
| 365 static char_u e_unmatchedpar[] = N_("E55: Unmatched %s)"); | |
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366 #ifdef FEAT_SYN_HL |
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367 static char_u e_z_not_allowed[] = N_("E66: \\z( not allowed here"); |
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368 static char_u e_z1_not_allowed[] = N_("E67: \\z1 - \\z9 not allowed here"); |
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369 #endif |
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370 static char_u e_missing_sb[] = N_("E69: Missing ] after %s%%["); |
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371 static char_u e_empty_sb[] = N_("E70: Empty %s%%[]"); |
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372 static char_u e_recursive[] = N_("E956: Cannot use pattern recursively"); |
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373 |
| 7 | 374 #define NOT_MULTI 0 |
| 375 #define MULTI_ONE 1 | |
| 376 #define MULTI_MULT 2 | |
| 377 /* | |
| 378 * Return NOT_MULTI if c is not a "multi" operator. | |
| 379 * Return MULTI_ONE if c is a single "multi" operator. | |
| 380 * Return MULTI_MULT if c is a multi "multi" operator. | |
| 381 */ | |
| 382 static int | |
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383 re_multi_type(int c) |
| 7 | 384 { |
| 385 if (c == Magic('@') || c == Magic('=') || c == Magic('?')) | |
| 386 return MULTI_ONE; | |
| 387 if (c == Magic('*') || c == Magic('+') || c == Magic('{')) | |
| 388 return MULTI_MULT; | |
| 389 return NOT_MULTI; | |
| 390 } | |
| 391 | |
| 392 /* | |
| 393 * Flags to be passed up and down. | |
| 394 */ | |
| 395 #define HASWIDTH 0x1 /* Known never to match null string. */ | |
| 396 #define SIMPLE 0x2 /* Simple enough to be STAR/PLUS operand. */ | |
| 397 #define SPSTART 0x4 /* Starts with * or +. */ | |
| 398 #define HASNL 0x8 /* Contains some \n. */ | |
| 399 #define HASLOOKBH 0x10 /* Contains "\@<=" or "\@<!". */ | |
| 400 #define WORST 0 /* Worst case. */ | |
| 401 | |
| 402 /* | |
| 403 * When regcode is set to this value, code is not emitted and size is computed | |
| 404 * instead. | |
| 405 */ | |
| 406 #define JUST_CALC_SIZE ((char_u *) -1) | |
| 407 | |
| 359 | 408 static char_u *reg_prev_sub = NULL; |
| 409 | |
| 7 | 410 /* |
| 411 * REGEXP_INRANGE contains all characters which are always special in a [] | |
| 412 * range after '\'. | |
| 413 * REGEXP_ABBR contains all characters which act as abbreviations after '\'. | |
| 414 * These are: | |
| 415 * \n - New line (NL). | |
| 416 * \r - Carriage Return (CR). | |
| 417 * \t - Tab (TAB). | |
| 418 * \e - Escape (ESC). | |
| 419 * \b - Backspace (Ctrl_H). | |
| 24 | 420 * \d - Character code in decimal, eg \d123 |
| 421 * \o - Character code in octal, eg \o80 | |
| 422 * \x - Character code in hex, eg \x4a | |
| 423 * \u - Multibyte character code, eg \u20ac | |
| 424 * \U - Long multibyte character code, eg \U12345678 | |
| 7 | 425 */ |
| 426 static char_u REGEXP_INRANGE[] = "]^-n\\"; | |
| 24 | 427 static char_u REGEXP_ABBR[] = "nrtebdoxuU"; |
| 7 | 428 |
| 429 /* | |
| 430 * Translate '\x' to its control character, except "\n", which is Magic. | |
| 431 */ | |
| 432 static int | |
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433 backslash_trans(int c) |
| 7 | 434 { |
| 435 switch (c) | |
| 436 { | |
| 437 case 'r': return CAR; | |
| 438 case 't': return TAB; | |
| 439 case 'e': return ESC; | |
| 440 case 'b': return BS; | |
| 441 } | |
| 442 return c; | |
| 443 } | |
| 444 | |
| 445 /* | |
| 167 | 446 * Check for a character class name "[:name:]". "pp" points to the '['. |
| 7 | 447 * Returns one of the CLASS_ items. CLASS_NONE means that no item was |
| 448 * recognized. Otherwise "pp" is advanced to after the item. | |
| 449 */ | |
| 450 static int | |
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451 get_char_class(char_u **pp) |
| 7 | 452 { |
| 453 static const char *(class_names[]) = | |
| 454 { | |
| 455 "alnum:]", | |
| 456 #define CLASS_ALNUM 0 | |
| 457 "alpha:]", | |
| 458 #define CLASS_ALPHA 1 | |
| 459 "blank:]", | |
| 460 #define CLASS_BLANK 2 | |
| 461 "cntrl:]", | |
| 462 #define CLASS_CNTRL 3 | |
| 463 "digit:]", | |
| 464 #define CLASS_DIGIT 4 | |
| 465 "graph:]", | |
| 466 #define CLASS_GRAPH 5 | |
| 467 "lower:]", | |
| 468 #define CLASS_LOWER 6 | |
| 469 "print:]", | |
| 470 #define CLASS_PRINT 7 | |
| 471 "punct:]", | |
| 472 #define CLASS_PUNCT 8 | |
| 473 "space:]", | |
| 474 #define CLASS_SPACE 9 | |
| 475 "upper:]", | |
| 476 #define CLASS_UPPER 10 | |
| 477 "xdigit:]", | |
| 478 #define CLASS_XDIGIT 11 | |
| 479 "tab:]", | |
| 480 #define CLASS_TAB 12 | |
| 481 "return:]", | |
| 482 #define CLASS_RETURN 13 | |
| 483 "backspace:]", | |
| 484 #define CLASS_BACKSPACE 14 | |
| 485 "escape:]", | |
| 486 #define CLASS_ESCAPE 15 | |
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487 "ident:]", |
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488 #define CLASS_IDENT 16 |
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489 "keyword:]", |
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490 #define CLASS_KEYWORD 17 |
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491 "fname:]", |
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492 #define CLASS_FNAME 18 |
| 7 | 493 }; |
| 494 #define CLASS_NONE 99 | |
| 495 int i; | |
| 496 | |
| 497 if ((*pp)[1] == ':') | |
| 498 { | |
| 1877 | 499 for (i = 0; i < (int)(sizeof(class_names) / sizeof(*class_names)); ++i) |
| 7 | 500 if (STRNCMP(*pp + 2, class_names[i], STRLEN(class_names[i])) == 0) |
| 501 { | |
| 502 *pp += STRLEN(class_names[i]) + 2; | |
| 503 return i; | |
| 504 } | |
| 505 } | |
| 506 return CLASS_NONE; | |
| 507 } | |
| 508 | |
| 509 /* | |
| 510 * Specific version of character class functions. | |
| 511 * Using a table to keep this fast. | |
| 512 */ | |
| 513 static short class_tab[256]; | |
| 514 | |
| 515 #define RI_DIGIT 0x01 | |
| 516 #define RI_HEX 0x02 | |
| 517 #define RI_OCTAL 0x04 | |
| 518 #define RI_WORD 0x08 | |
| 519 #define RI_HEAD 0x10 | |
| 520 #define RI_ALPHA 0x20 | |
| 521 #define RI_LOWER 0x40 | |
| 522 #define RI_UPPER 0x80 | |
| 523 #define RI_WHITE 0x100 | |
| 524 | |
| 525 static void | |
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526 init_class_tab(void) |
| 7 | 527 { |
| 528 int i; | |
| 529 static int done = FALSE; | |
| 530 | |
| 531 if (done) | |
| 532 return; | |
| 533 | |
| 534 for (i = 0; i < 256; ++i) | |
| 535 { | |
| 536 if (i >= '0' && i <= '7') | |
| 537 class_tab[i] = RI_DIGIT + RI_HEX + RI_OCTAL + RI_WORD; | |
| 538 else if (i >= '8' && i <= '9') | |
| 539 class_tab[i] = RI_DIGIT + RI_HEX + RI_WORD; | |
| 540 else if (i >= 'a' && i <= 'f') | |
| 541 class_tab[i] = RI_HEX + RI_WORD + RI_HEAD + RI_ALPHA + RI_LOWER; | |
| 542 #ifdef EBCDIC | |
| 543 else if ((i >= 'g' && i <= 'i') || (i >= 'j' && i <= 'r') | |
| 544 || (i >= 's' && i <= 'z')) | |
| 545 #else | |
| 546 else if (i >= 'g' && i <= 'z') | |
| 547 #endif | |
| 548 class_tab[i] = RI_WORD + RI_HEAD + RI_ALPHA + RI_LOWER; | |
| 549 else if (i >= 'A' && i <= 'F') | |
| 550 class_tab[i] = RI_HEX + RI_WORD + RI_HEAD + RI_ALPHA + RI_UPPER; | |
| 551 #ifdef EBCDIC | |
| 552 else if ((i >= 'G' && i <= 'I') || ( i >= 'J' && i <= 'R') | |
| 553 || (i >= 'S' && i <= 'Z')) | |
| 554 #else | |
| 555 else if (i >= 'G' && i <= 'Z') | |
| 556 #endif | |
| 557 class_tab[i] = RI_WORD + RI_HEAD + RI_ALPHA + RI_UPPER; | |
| 558 else if (i == '_') | |
| 559 class_tab[i] = RI_WORD + RI_HEAD; | |
| 560 else | |
| 561 class_tab[i] = 0; | |
| 562 } | |
| 563 class_tab[' '] |= RI_WHITE; | |
| 564 class_tab['\t'] |= RI_WHITE; | |
| 565 done = TRUE; | |
| 566 } | |
| 567 | |
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568 #define ri_digit(c) (c < 0x100 && (class_tab[c] & RI_DIGIT)) |
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569 #define ri_hex(c) (c < 0x100 && (class_tab[c] & RI_HEX)) |
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570 #define ri_octal(c) (c < 0x100 && (class_tab[c] & RI_OCTAL)) |
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571 #define ri_word(c) (c < 0x100 && (class_tab[c] & RI_WORD)) |
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572 #define ri_head(c) (c < 0x100 && (class_tab[c] & RI_HEAD)) |
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573 #define ri_alpha(c) (c < 0x100 && (class_tab[c] & RI_ALPHA)) |
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574 #define ri_lower(c) (c < 0x100 && (class_tab[c] & RI_LOWER)) |
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575 #define ri_upper(c) (c < 0x100 && (class_tab[c] & RI_UPPER)) |
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576 #define ri_white(c) (c < 0x100 && (class_tab[c] & RI_WHITE)) |
| 7 | 577 |
| 578 /* flags for regflags */ | |
| 579 #define RF_ICASE 1 /* ignore case */ | |
| 580 #define RF_NOICASE 2 /* don't ignore case */ | |
| 581 #define RF_HASNL 4 /* can match a NL */ | |
| 582 #define RF_ICOMBINE 8 /* ignore combining characters */ | |
| 583 #define RF_LOOKBH 16 /* uses "\@<=" or "\@<!" */ | |
| 584 | |
| 585 /* | |
| 586 * Global work variables for vim_regcomp(). | |
| 587 */ | |
| 588 | |
| 589 static char_u *regparse; /* Input-scan pointer. */ | |
| 590 static int prevchr_len; /* byte length of previous char */ | |
| 591 static int num_complex_braces; /* Complex \{...} count */ | |
| 592 static int regnpar; /* () count. */ | |
| 593 #ifdef FEAT_SYN_HL | |
| 594 static int regnzpar; /* \z() count. */ | |
| 595 static int re_has_z; /* \z item detected */ | |
| 596 #endif | |
| 597 static char_u *regcode; /* Code-emit pointer, or JUST_CALC_SIZE */ | |
| 598 static long regsize; /* Code size. */ | |
| 2010 | 599 static int reg_toolong; /* TRUE when offset out of range */ |
| 7 | 600 static char_u had_endbrace[NSUBEXP]; /* flags, TRUE if end of () found */ |
| 601 static unsigned regflags; /* RF_ flags for prog */ | |
| 602 static long brace_min[10]; /* Minimums for complex brace repeats */ | |
| 603 static long brace_max[10]; /* Maximums for complex brace repeats */ | |
| 604 static int brace_count[10]; /* Current counts for complex brace repeats */ | |
| 605 #if defined(FEAT_SYN_HL) || defined(PROTO) | |
| 606 static int had_eol; /* TRUE when EOL found by vim_regcomp() */ | |
| 607 #endif | |
| 608 static int one_exactly = FALSE; /* only do one char for EXACTLY */ | |
| 609 | |
| 610 static int reg_magic; /* magicness of the pattern: */ | |
| 611 #define MAGIC_NONE 1 /* "\V" very unmagic */ | |
| 612 #define MAGIC_OFF 2 /* "\M" or 'magic' off */ | |
| 613 #define MAGIC_ON 3 /* "\m" or 'magic' */ | |
| 614 #define MAGIC_ALL 4 /* "\v" very magic */ | |
| 615 | |
| 616 static int reg_string; /* matching with a string instead of a buffer | |
| 617 line */ | |
| 481 | 618 static int reg_strict; /* "[abc" is illegal */ |
| 7 | 619 |
| 620 /* | |
| 621 * META contains all characters that may be magic, except '^' and '$'. | |
| 622 */ | |
| 623 | |
| 624 #ifdef EBCDIC | |
| 625 static char_u META[] = "%&()*+.123456789<=>?@ACDFHIKLMOPSUVWX[_acdfhiklmnopsuvwxz{|~"; | |
| 626 #else | |
| 627 /* META[] is used often enough to justify turning it into a table. */ | |
| 628 static char_u META_flags[] = { | |
| 629 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
| 630 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
| 631 /* % & ( ) * + . */ | |
| 632 0, 0, 0, 0, 0, 1, 1, 0, 1, 1, 1, 1, 0, 0, 1, 0, | |
| 633 /* 1 2 3 4 5 6 7 8 9 < = > ? */ | |
| 634 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 1, 1, | |
| 635 /* @ A C D F H I K L M O */ | |
| 636 1, 1, 0, 1, 1, 0, 1, 0, 1, 1, 0, 1, 1, 1, 0, 1, | |
| 637 /* P S U V W X Z [ _ */ | |
| 638 1, 0, 0, 1, 0, 1, 1, 1, 1, 0, 1, 1, 0, 0, 0, 1, | |
| 639 /* a c d f h i k l m n o */ | |
| 640 0, 1, 0, 1, 1, 0, 1, 0, 1, 1, 0, 1, 1, 1, 1, 1, | |
| 641 /* p s u v w x z { | ~ */ | |
| 642 1, 0, 0, 1, 0, 1, 1, 1, 1, 0, 1, 1, 1, 0, 1 | |
| 643 }; | |
| 644 #endif | |
| 645 | |
| 4444 | 646 static int curchr; /* currently parsed character */ |
| 647 /* Previous character. Note: prevchr is sometimes -1 when we are not at the | |
| 648 * start, eg in /[ ^I]^ the pattern was never found even if it existed, | |
| 649 * because ^ was taken to be magic -- webb */ | |
| 650 static int prevchr; | |
| 651 static int prevprevchr; /* previous-previous character */ | |
| 652 static int nextchr; /* used for ungetchr() */ | |
| 7 | 653 |
| 654 /* arguments for reg() */ | |
| 655 #define REG_NOPAREN 0 /* toplevel reg() */ | |
| 656 #define REG_PAREN 1 /* \(\) */ | |
| 657 #define REG_ZPAREN 2 /* \z(\) */ | |
| 658 #define REG_NPAREN 3 /* \%(\) */ | |
| 659 | |
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660 typedef struct |
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661 { |
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662 char_u *regparse; |
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663 int prevchr_len; |
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664 int curchr; |
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665 int prevchr; |
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666 int prevprevchr; |
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667 int nextchr; |
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668 int at_start; |
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669 int prev_at_start; |
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670 int regnpar; |
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671 } parse_state_T; |
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672 |
| 7 | 673 /* |
| 674 * Forward declarations for vim_regcomp()'s friends. | |
| 675 */ | |
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676 static void initchr(char_u *); |
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677 static int getchr(void); |
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678 static void skipchr_keepstart(void); |
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679 static int peekchr(void); |
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680 static void skipchr(void); |
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681 static void ungetchr(void); |
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682 static long gethexchrs(int maxinputlen); |
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683 static long getoctchrs(void); |
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684 static long getdecchrs(void); |
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685 static int coll_get_char(void); |
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686 static void regcomp_start(char_u *expr, int flags); |
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687 static char_u *reg(int, int *); |
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688 static char_u *regbranch(int *flagp); |
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689 static char_u *regconcat(int *flagp); |
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690 static char_u *regpiece(int *); |
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691 static char_u *regatom(int *); |
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692 static char_u *regnode(int); |
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693 static int use_multibytecode(int c); |
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694 static int prog_magic_wrong(void); |
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695 static char_u *regnext(char_u *); |
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696 static void regc(int b); |
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697 static void regmbc(int c); |
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698 #define REGMBC(x) regmbc(x); |
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699 #define CASEMBC(x) case x: |
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700 static void reginsert(int, char_u *); |
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701 static void reginsert_nr(int op, long val, char_u *opnd); |
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702 static void reginsert_limits(int, long, long, char_u *); |
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703 static char_u *re_put_long(char_u *pr, long_u val); |
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704 static int read_limits(long *, long *); |
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705 static void regtail(char_u *, char_u *); |
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706 static void regoptail(char_u *, char_u *); |
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707 static int reg_iswordc(int); |
| 7 | 708 |
| 4444 | 709 static regengine_T bt_regengine; |
| 710 static regengine_T nfa_regengine; | |
| 711 | |
| 7 | 712 /* |
| 713 * Return TRUE if compiled regular expression "prog" can match a line break. | |
| 714 */ | |
| 715 int | |
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716 re_multiline(regprog_T *prog) |
| 7 | 717 { |
| 718 return (prog->regflags & RF_HASNL); | |
| 719 } | |
| 720 | |
| 721 /* | |
| 167 | 722 * Check for an equivalence class name "[=a=]". "pp" points to the '['. |
| 723 * Returns a character representing the class. Zero means that no item was | |
| 724 * recognized. Otherwise "pp" is advanced to after the item. | |
| 725 */ | |
| 726 static int | |
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727 get_equi_class(char_u **pp) |
| 167 | 728 { |
| 729 int c; | |
| 730 int l = 1; | |
| 731 char_u *p = *pp; | |
| 732 | |
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733 if (p[1] == '=' && p[2] != NUL) |
| 167 | 734 { |
| 735 if (has_mbyte) | |
| 474 | 736 l = (*mb_ptr2len)(p + 2); |
| 167 | 737 if (p[l + 2] == '=' && p[l + 3] == ']') |
| 738 { | |
| 739 if (has_mbyte) | |
| 740 c = mb_ptr2char(p + 2); | |
| 741 else | |
| 742 c = p[2]; | |
| 743 *pp += l + 4; | |
| 744 return c; | |
| 745 } | |
| 746 } | |
| 747 return 0; | |
| 748 } | |
| 749 | |
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750 #ifdef EBCDIC |
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751 /* |
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752 * Table for equivalence class "c". (IBM-1047) |
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753 */ |
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754 char *EQUIVAL_CLASS_C[16] = { |
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755 "A\x62\x63\x64\x65\x66\x67", |
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756 "C\x68", |
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757 "E\x71\x72\x73\x74", |
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758 "I\x75\x76\x77\x78", |
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759 "N\x69", |
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760 "O\xEB\xEC\xED\xEE\xEF\x80", |
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761 "U\xFB\xFC\xFD\xFE", |
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762 "Y\xBA", |
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763 "a\x42\x43\x44\x45\x46\x47", |
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764 "c\x48", |
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765 "e\x51\x52\x53\x54", |
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766 "i\x55\x56\x57\x58", |
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767 "n\x49", |
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768 "o\xCB\xCC\xCD\xCE\xCF\x70", |
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769 "u\xDB\xDC\xDD\xDE", |
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770 "y\x8D\xDF", |
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771 }; |
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772 #endif |
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773 |
| 167 | 774 /* |
| 775 * Produce the bytes for equivalence class "c". | |
| 776 * Currently only handles latin1, latin9 and utf-8. | |
| 4444 | 777 * NOTE: When changing this function, also change nfa_emit_equi_class() |
| 167 | 778 */ |
| 779 static void | |
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780 reg_equi_class(int c) |
| 167 | 781 { |
| 782 if (enc_utf8 || STRCMP(p_enc, "latin1") == 0 | |
| 492 | 783 || STRCMP(p_enc, "iso-8859-15") == 0) |
| 167 | 784 { |
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785 #ifdef EBCDIC |
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786 int i; |
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787 |
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788 /* This might be slower than switch/case below. */ |
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789 for (i = 0; i < 16; i++) |
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790 { |
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791 if (vim_strchr(EQUIVAL_CLASS_C[i], c) != NULL) |
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792 { |
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793 char *p = EQUIVAL_CLASS_C[i]; |
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794 |
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795 while (*p != 0) |
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796 regmbc(*p++); |
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797 return; |
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798 } |
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799 } |
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800 #else |
| 167 | 801 switch (c) |
| 802 { | |
| 6765 | 803 /* Do not use '\300' style, it results in a negative number. */ |
| 804 case 'A': case 0xc0: case 0xc1: case 0xc2: | |
| 805 case 0xc3: case 0xc4: case 0xc5: | |
| 2974 | 806 CASEMBC(0x100) CASEMBC(0x102) CASEMBC(0x104) CASEMBC(0x1cd) |
| 807 CASEMBC(0x1de) CASEMBC(0x1e0) CASEMBC(0x1ea2) | |
| 6765 | 808 regmbc('A'); regmbc(0xc0); regmbc(0xc1); |
| 809 regmbc(0xc2); regmbc(0xc3); regmbc(0xc4); | |
| 810 regmbc(0xc5); | |
| 2974 | 811 REGMBC(0x100) REGMBC(0x102) REGMBC(0x104) |
| 812 REGMBC(0x1cd) REGMBC(0x1de) REGMBC(0x1e0) | |
| 813 REGMBC(0x1ea2) | |
| 814 return; | |
| 815 case 'B': CASEMBC(0x1e02) CASEMBC(0x1e06) | |
| 816 regmbc('B'); REGMBC(0x1e02) REGMBC(0x1e06) | |
| 167 | 817 return; |
| 6765 | 818 case 'C': case 0xc7: |
| 2974 | 819 CASEMBC(0x106) CASEMBC(0x108) CASEMBC(0x10a) CASEMBC(0x10c) |
| 6765 | 820 regmbc('C'); regmbc(0xc7); |
| 2974 | 821 REGMBC(0x106) REGMBC(0x108) REGMBC(0x10a) |
| 822 REGMBC(0x10c) | |
| 823 return; | |
| 824 case 'D': CASEMBC(0x10e) CASEMBC(0x110) CASEMBC(0x1e0a) | |
| 825 CASEMBC(0x1e0e) CASEMBC(0x1e10) | |
| 826 regmbc('D'); REGMBC(0x10e) REGMBC(0x110) | |
| 827 REGMBC(0x1e0a) REGMBC(0x1e0e) REGMBC(0x1e10) | |
| 167 | 828 return; |
| 6765 | 829 case 'E': case 0xc8: case 0xc9: case 0xca: case 0xcb: |
| 2974 | 830 CASEMBC(0x112) CASEMBC(0x114) CASEMBC(0x116) CASEMBC(0x118) |
| 831 CASEMBC(0x11a) CASEMBC(0x1eba) CASEMBC(0x1ebc) | |
| 6765 | 832 regmbc('E'); regmbc(0xc8); regmbc(0xc9); |
| 833 regmbc(0xca); regmbc(0xcb); | |
| 2974 | 834 REGMBC(0x112) REGMBC(0x114) REGMBC(0x116) |
| 835 REGMBC(0x118) REGMBC(0x11a) REGMBC(0x1eba) | |
| 836 REGMBC(0x1ebc) | |
| 837 return; | |
| 838 case 'F': CASEMBC(0x1e1e) | |
| 839 regmbc('F'); REGMBC(0x1e1e) | |
| 840 return; | |
| 841 case 'G': CASEMBC(0x11c) CASEMBC(0x11e) CASEMBC(0x120) | |
| 842 CASEMBC(0x122) CASEMBC(0x1e4) CASEMBC(0x1e6) CASEMBC(0x1f4) | |
| 843 CASEMBC(0x1e20) | |
| 844 regmbc('G'); REGMBC(0x11c) REGMBC(0x11e) | |
| 845 REGMBC(0x120) REGMBC(0x122) REGMBC(0x1e4) | |
| 846 REGMBC(0x1e6) REGMBC(0x1f4) REGMBC(0x1e20) | |
| 847 return; | |
| 848 case 'H': CASEMBC(0x124) CASEMBC(0x126) CASEMBC(0x1e22) | |
| 849 CASEMBC(0x1e26) CASEMBC(0x1e28) | |
| 850 regmbc('H'); REGMBC(0x124) REGMBC(0x126) | |
| 851 REGMBC(0x1e22) REGMBC(0x1e26) REGMBC(0x1e28) | |
| 167 | 852 return; |
| 6765 | 853 case 'I': case 0xcc: case 0xcd: case 0xce: case 0xcf: |
| 2974 | 854 CASEMBC(0x128) CASEMBC(0x12a) CASEMBC(0x12c) CASEMBC(0x12e) |
| 855 CASEMBC(0x130) CASEMBC(0x1cf) CASEMBC(0x1ec8) | |
| 6765 | 856 regmbc('I'); regmbc(0xcc); regmbc(0xcd); |
| 857 regmbc(0xce); regmbc(0xcf); | |
| 2974 | 858 REGMBC(0x128) REGMBC(0x12a) REGMBC(0x12c) |
| 859 REGMBC(0x12e) REGMBC(0x130) REGMBC(0x1cf) | |
| 860 REGMBC(0x1ec8) | |
| 861 return; | |
| 862 case 'J': CASEMBC(0x134) | |
| 863 regmbc('J'); REGMBC(0x134) | |
| 864 return; | |
| 865 case 'K': CASEMBC(0x136) CASEMBC(0x1e8) CASEMBC(0x1e30) | |
| 866 CASEMBC(0x1e34) | |
| 867 regmbc('K'); REGMBC(0x136) REGMBC(0x1e8) | |
| 868 REGMBC(0x1e30) REGMBC(0x1e34) | |
| 869 return; | |
| 870 case 'L': CASEMBC(0x139) CASEMBC(0x13b) CASEMBC(0x13d) | |
| 871 CASEMBC(0x13f) CASEMBC(0x141) CASEMBC(0x1e3a) | |
| 872 regmbc('L'); REGMBC(0x139) REGMBC(0x13b) | |
| 873 REGMBC(0x13d) REGMBC(0x13f) REGMBC(0x141) | |
| 874 REGMBC(0x1e3a) | |
| 875 return; | |
| 876 case 'M': CASEMBC(0x1e3e) CASEMBC(0x1e40) | |
| 877 regmbc('M'); REGMBC(0x1e3e) REGMBC(0x1e40) | |
| 167 | 878 return; |
| 6765 | 879 case 'N': case 0xd1: |
| 2974 | 880 CASEMBC(0x143) CASEMBC(0x145) CASEMBC(0x147) CASEMBC(0x1e44) |
| 881 CASEMBC(0x1e48) | |
| 6765 | 882 regmbc('N'); regmbc(0xd1); |
| 2974 | 883 REGMBC(0x143) REGMBC(0x145) REGMBC(0x147) |
| 884 REGMBC(0x1e44) REGMBC(0x1e48) | |
| 167 | 885 return; |
| 6765 | 886 case 'O': case 0xd2: case 0xd3: case 0xd4: case 0xd5: |
| 887 case 0xd6: case 0xd8: | |
| 2974 | 888 CASEMBC(0x14c) CASEMBC(0x14e) CASEMBC(0x150) CASEMBC(0x1a0) |
| 889 CASEMBC(0x1d1) CASEMBC(0x1ea) CASEMBC(0x1ec) CASEMBC(0x1ece) | |
| 6765 | 890 regmbc('O'); regmbc(0xd2); regmbc(0xd3); |
| 891 regmbc(0xd4); regmbc(0xd5); regmbc(0xd6); | |
| 892 regmbc(0xd8); | |
| 2974 | 893 REGMBC(0x14c) REGMBC(0x14e) REGMBC(0x150) |
| 894 REGMBC(0x1a0) REGMBC(0x1d1) REGMBC(0x1ea) | |
| 895 REGMBC(0x1ec) REGMBC(0x1ece) | |
| 896 return; | |
| 897 case 'P': case 0x1e54: case 0x1e56: | |
| 898 regmbc('P'); REGMBC(0x1e54) REGMBC(0x1e56) | |
| 899 return; | |
| 900 case 'R': CASEMBC(0x154) CASEMBC(0x156) CASEMBC(0x158) | |
| 901 CASEMBC(0x1e58) CASEMBC(0x1e5e) | |
| 902 regmbc('R'); REGMBC(0x154) REGMBC(0x156) REGMBC(0x158) | |
| 903 REGMBC(0x1e58) REGMBC(0x1e5e) | |
| 904 return; | |
| 905 case 'S': CASEMBC(0x15a) CASEMBC(0x15c) CASEMBC(0x15e) | |
| 906 CASEMBC(0x160) CASEMBC(0x1e60) | |
| 907 regmbc('S'); REGMBC(0x15a) REGMBC(0x15c) | |
| 908 REGMBC(0x15e) REGMBC(0x160) REGMBC(0x1e60) | |
| 909 return; | |
| 910 case 'T': CASEMBC(0x162) CASEMBC(0x164) CASEMBC(0x166) | |
| 911 CASEMBC(0x1e6a) CASEMBC(0x1e6e) | |
| 912 regmbc('T'); REGMBC(0x162) REGMBC(0x164) | |
| 913 REGMBC(0x166) REGMBC(0x1e6a) REGMBC(0x1e6e) | |
| 167 | 914 return; |
| 6765 | 915 case 'U': case 0xd9: case 0xda: case 0xdb: case 0xdc: |
| 2974 | 916 CASEMBC(0x168) CASEMBC(0x16a) CASEMBC(0x16c) CASEMBC(0x16e) |
| 917 CASEMBC(0x170) CASEMBC(0x172) CASEMBC(0x1af) CASEMBC(0x1d3) | |
| 918 CASEMBC(0x1ee6) | |
| 6765 | 919 regmbc('U'); regmbc(0xd9); regmbc(0xda); |
| 920 regmbc(0xdb); regmbc(0xdc); | |
| 2974 | 921 REGMBC(0x168) REGMBC(0x16a) REGMBC(0x16c) |
| 922 REGMBC(0x16e) REGMBC(0x170) REGMBC(0x172) | |
| 923 REGMBC(0x1af) REGMBC(0x1d3) REGMBC(0x1ee6) | |
| 924 return; | |
| 925 case 'V': CASEMBC(0x1e7c) | |
| 926 regmbc('V'); REGMBC(0x1e7c) | |
| 927 return; | |
| 928 case 'W': CASEMBC(0x174) CASEMBC(0x1e80) CASEMBC(0x1e82) | |
| 929 CASEMBC(0x1e84) CASEMBC(0x1e86) | |
| 930 regmbc('W'); REGMBC(0x174) REGMBC(0x1e80) | |
| 931 REGMBC(0x1e82) REGMBC(0x1e84) REGMBC(0x1e86) | |
| 932 return; | |
| 933 case 'X': CASEMBC(0x1e8a) CASEMBC(0x1e8c) | |
| 934 regmbc('X'); REGMBC(0x1e8a) REGMBC(0x1e8c) | |
| 167 | 935 return; |
| 6765 | 936 case 'Y': case 0xdd: |
| 2974 | 937 CASEMBC(0x176) CASEMBC(0x178) CASEMBC(0x1e8e) CASEMBC(0x1ef2) |
| 938 CASEMBC(0x1ef6) CASEMBC(0x1ef8) | |
| 6765 | 939 regmbc('Y'); regmbc(0xdd); |
| 2974 | 940 REGMBC(0x176) REGMBC(0x178) REGMBC(0x1e8e) |
| 941 REGMBC(0x1ef2) REGMBC(0x1ef6) REGMBC(0x1ef8) | |
| 942 return; | |
| 943 case 'Z': CASEMBC(0x179) CASEMBC(0x17b) CASEMBC(0x17d) | |
| 944 CASEMBC(0x1b5) CASEMBC(0x1e90) CASEMBC(0x1e94) | |
| 945 regmbc('Z'); REGMBC(0x179) REGMBC(0x17b) | |
| 946 REGMBC(0x17d) REGMBC(0x1b5) REGMBC(0x1e90) | |
| 947 REGMBC(0x1e94) | |
| 167 | 948 return; |
| 6765 | 949 case 'a': case 0xe0: case 0xe1: case 0xe2: |
| 950 case 0xe3: case 0xe4: case 0xe5: | |
| 2974 | 951 CASEMBC(0x101) CASEMBC(0x103) CASEMBC(0x105) CASEMBC(0x1ce) |
| 952 CASEMBC(0x1df) CASEMBC(0x1e1) CASEMBC(0x1ea3) | |
| 6765 | 953 regmbc('a'); regmbc(0xe0); regmbc(0xe1); |
| 954 regmbc(0xe2); regmbc(0xe3); regmbc(0xe4); | |
| 955 regmbc(0xe5); | |
| 2974 | 956 REGMBC(0x101) REGMBC(0x103) REGMBC(0x105) |
| 957 REGMBC(0x1ce) REGMBC(0x1df) REGMBC(0x1e1) | |
| 958 REGMBC(0x1ea3) | |
| 959 return; | |
| 960 case 'b': CASEMBC(0x1e03) CASEMBC(0x1e07) | |
| 961 regmbc('b'); REGMBC(0x1e03) REGMBC(0x1e07) | |
| 167 | 962 return; |
| 6765 | 963 case 'c': case 0xe7: |
| 2974 | 964 CASEMBC(0x107) CASEMBC(0x109) CASEMBC(0x10b) CASEMBC(0x10d) |
| 6765 | 965 regmbc('c'); regmbc(0xe7); |
| 2974 | 966 REGMBC(0x107) REGMBC(0x109) REGMBC(0x10b) |
| 967 REGMBC(0x10d) | |
| 968 return; | |
| 6914 | 969 case 'd': CASEMBC(0x10f) CASEMBC(0x111) CASEMBC(0x1e0b) |
| 970 CASEMBC(0x1e0f) CASEMBC(0x1e11) | |
| 2974 | 971 regmbc('d'); REGMBC(0x10f) REGMBC(0x111) |
| 6914 | 972 REGMBC(0x1e0b) REGMBC(0x1e0f) REGMBC(0x1e11) |
| 167 | 973 return; |
| 6765 | 974 case 'e': case 0xe8: case 0xe9: case 0xea: case 0xeb: |
| 2974 | 975 CASEMBC(0x113) CASEMBC(0x115) CASEMBC(0x117) CASEMBC(0x119) |
| 976 CASEMBC(0x11b) CASEMBC(0x1ebb) CASEMBC(0x1ebd) | |
| 6765 | 977 regmbc('e'); regmbc(0xe8); regmbc(0xe9); |
| 978 regmbc(0xea); regmbc(0xeb); | |
| 2974 | 979 REGMBC(0x113) REGMBC(0x115) REGMBC(0x117) |
| 980 REGMBC(0x119) REGMBC(0x11b) REGMBC(0x1ebb) | |
| 981 REGMBC(0x1ebd) | |
| 982 return; | |
| 983 case 'f': CASEMBC(0x1e1f) | |
| 984 regmbc('f'); REGMBC(0x1e1f) | |
| 985 return; | |
| 986 case 'g': CASEMBC(0x11d) CASEMBC(0x11f) CASEMBC(0x121) | |
| 987 CASEMBC(0x123) CASEMBC(0x1e5) CASEMBC(0x1e7) CASEMBC(0x1f5) | |
| 988 CASEMBC(0x1e21) | |
| 989 regmbc('g'); REGMBC(0x11d) REGMBC(0x11f) | |
| 990 REGMBC(0x121) REGMBC(0x123) REGMBC(0x1e5) | |
| 991 REGMBC(0x1e7) REGMBC(0x1f5) REGMBC(0x1e21) | |
| 992 return; | |
| 993 case 'h': CASEMBC(0x125) CASEMBC(0x127) CASEMBC(0x1e23) | |
| 994 CASEMBC(0x1e27) CASEMBC(0x1e29) CASEMBC(0x1e96) | |
| 995 regmbc('h'); REGMBC(0x125) REGMBC(0x127) | |
| 996 REGMBC(0x1e23) REGMBC(0x1e27) REGMBC(0x1e29) | |
| 997 REGMBC(0x1e96) | |
| 167 | 998 return; |
| 6765 | 999 case 'i': case 0xec: case 0xed: case 0xee: case 0xef: |
| 2974 | 1000 CASEMBC(0x129) CASEMBC(0x12b) CASEMBC(0x12d) CASEMBC(0x12f) |
| 1001 CASEMBC(0x1d0) CASEMBC(0x1ec9) | |
| 6765 | 1002 regmbc('i'); regmbc(0xec); regmbc(0xed); |
| 1003 regmbc(0xee); regmbc(0xef); | |
| 2974 | 1004 REGMBC(0x129) REGMBC(0x12b) REGMBC(0x12d) |
| 1005 REGMBC(0x12f) REGMBC(0x1d0) REGMBC(0x1ec9) | |
| 1006 return; | |
| 1007 case 'j': CASEMBC(0x135) CASEMBC(0x1f0) | |
| 1008 regmbc('j'); REGMBC(0x135) REGMBC(0x1f0) | |
| 1009 return; | |
| 1010 case 'k': CASEMBC(0x137) CASEMBC(0x1e9) CASEMBC(0x1e31) | |
| 1011 CASEMBC(0x1e35) | |
| 1012 regmbc('k'); REGMBC(0x137) REGMBC(0x1e9) | |
| 1013 REGMBC(0x1e31) REGMBC(0x1e35) | |
| 1014 return; | |
| 1015 case 'l': CASEMBC(0x13a) CASEMBC(0x13c) CASEMBC(0x13e) | |
| 1016 CASEMBC(0x140) CASEMBC(0x142) CASEMBC(0x1e3b) | |
| 1017 regmbc('l'); REGMBC(0x13a) REGMBC(0x13c) | |
| 1018 REGMBC(0x13e) REGMBC(0x140) REGMBC(0x142) | |
| 1019 REGMBC(0x1e3b) | |
| 1020 return; | |
| 1021 case 'm': CASEMBC(0x1e3f) CASEMBC(0x1e41) | |
| 1022 regmbc('m'); REGMBC(0x1e3f) REGMBC(0x1e41) | |
| 167 | 1023 return; |
| 6765 | 1024 case 'n': case 0xf1: |
| 2974 | 1025 CASEMBC(0x144) CASEMBC(0x146) CASEMBC(0x148) CASEMBC(0x149) |
| 1026 CASEMBC(0x1e45) CASEMBC(0x1e49) | |
| 6765 | 1027 regmbc('n'); regmbc(0xf1); |
| 2974 | 1028 REGMBC(0x144) REGMBC(0x146) REGMBC(0x148) |
| 1029 REGMBC(0x149) REGMBC(0x1e45) REGMBC(0x1e49) | |
| 167 | 1030 return; |
| 6765 | 1031 case 'o': case 0xf2: case 0xf3: case 0xf4: case 0xf5: |
| 1032 case 0xf6: case 0xf8: | |
| 2974 | 1033 CASEMBC(0x14d) CASEMBC(0x14f) CASEMBC(0x151) CASEMBC(0x1a1) |
| 1034 CASEMBC(0x1d2) CASEMBC(0x1eb) CASEMBC(0x1ed) CASEMBC(0x1ecf) | |
| 6765 | 1035 regmbc('o'); regmbc(0xf2); regmbc(0xf3); |
| 1036 regmbc(0xf4); regmbc(0xf5); regmbc(0xf6); | |
| 1037 regmbc(0xf8); | |
| 2974 | 1038 REGMBC(0x14d) REGMBC(0x14f) REGMBC(0x151) |
| 1039 REGMBC(0x1a1) REGMBC(0x1d2) REGMBC(0x1eb) | |
| 1040 REGMBC(0x1ed) REGMBC(0x1ecf) | |
| 1041 return; | |
| 1042 case 'p': CASEMBC(0x1e55) CASEMBC(0x1e57) | |
| 1043 regmbc('p'); REGMBC(0x1e55) REGMBC(0x1e57) | |
| 1044 return; | |
| 1045 case 'r': CASEMBC(0x155) CASEMBC(0x157) CASEMBC(0x159) | |
| 1046 CASEMBC(0x1e59) CASEMBC(0x1e5f) | |
| 1047 regmbc('r'); REGMBC(0x155) REGMBC(0x157) REGMBC(0x159) | |
| 1048 REGMBC(0x1e59) REGMBC(0x1e5f) | |
| 1049 return; | |
| 1050 case 's': CASEMBC(0x15b) CASEMBC(0x15d) CASEMBC(0x15f) | |
| 1051 CASEMBC(0x161) CASEMBC(0x1e61) | |
| 1052 regmbc('s'); REGMBC(0x15b) REGMBC(0x15d) | |
| 1053 REGMBC(0x15f) REGMBC(0x161) REGMBC(0x1e61) | |
| 1054 return; | |
| 1055 case 't': CASEMBC(0x163) CASEMBC(0x165) CASEMBC(0x167) | |
| 1056 CASEMBC(0x1e6b) CASEMBC(0x1e6f) CASEMBC(0x1e97) | |
| 1057 regmbc('t'); REGMBC(0x163) REGMBC(0x165) REGMBC(0x167) | |
| 1058 REGMBC(0x1e6b) REGMBC(0x1e6f) REGMBC(0x1e97) | |
| 167 | 1059 return; |
| 6765 | 1060 case 'u': case 0xf9: case 0xfa: case 0xfb: case 0xfc: |
| 2974 | 1061 CASEMBC(0x169) CASEMBC(0x16b) CASEMBC(0x16d) CASEMBC(0x16f) |
| 1062 CASEMBC(0x171) CASEMBC(0x173) CASEMBC(0x1b0) CASEMBC(0x1d4) | |
| 1063 CASEMBC(0x1ee7) | |
| 6765 | 1064 regmbc('u'); regmbc(0xf9); regmbc(0xfa); |
| 1065 regmbc(0xfb); regmbc(0xfc); | |
| 2974 | 1066 REGMBC(0x169) REGMBC(0x16b) REGMBC(0x16d) |
| 1067 REGMBC(0x16f) REGMBC(0x171) REGMBC(0x173) | |
| 1068 REGMBC(0x1b0) REGMBC(0x1d4) REGMBC(0x1ee7) | |
| 1069 return; | |
| 1070 case 'v': CASEMBC(0x1e7d) | |
| 1071 regmbc('v'); REGMBC(0x1e7d) | |
| 1072 return; | |
| 1073 case 'w': CASEMBC(0x175) CASEMBC(0x1e81) CASEMBC(0x1e83) | |
| 1074 CASEMBC(0x1e85) CASEMBC(0x1e87) CASEMBC(0x1e98) | |
| 1075 regmbc('w'); REGMBC(0x175) REGMBC(0x1e81) | |
| 1076 REGMBC(0x1e83) REGMBC(0x1e85) REGMBC(0x1e87) | |
| 1077 REGMBC(0x1e98) | |
| 1078 return; | |
| 1079 case 'x': CASEMBC(0x1e8b) CASEMBC(0x1e8d) | |
| 1080 regmbc('x'); REGMBC(0x1e8b) REGMBC(0x1e8d) | |
| 167 | 1081 return; |
| 6765 | 1082 case 'y': case 0xfd: case 0xff: |
| 2974 | 1083 CASEMBC(0x177) CASEMBC(0x1e8f) CASEMBC(0x1e99) |
| 1084 CASEMBC(0x1ef3) CASEMBC(0x1ef7) CASEMBC(0x1ef9) | |
| 6765 | 1085 regmbc('y'); regmbc(0xfd); regmbc(0xff); |
| 2974 | 1086 REGMBC(0x177) REGMBC(0x1e8f) REGMBC(0x1e99) |
| 1087 REGMBC(0x1ef3) REGMBC(0x1ef7) REGMBC(0x1ef9) | |
| 1088 return; | |
| 1089 case 'z': CASEMBC(0x17a) CASEMBC(0x17c) CASEMBC(0x17e) | |
| 1090 CASEMBC(0x1b6) CASEMBC(0x1e91) CASEMBC(0x1e95) | |
| 1091 regmbc('z'); REGMBC(0x17a) REGMBC(0x17c) | |
| 1092 REGMBC(0x17e) REGMBC(0x1b6) REGMBC(0x1e91) | |
| 1093 REGMBC(0x1e95) | |
| 167 | 1094 return; |
| 1095 } | |
|
2247
c40cd9aad546
Add patch to improve support of z/OS (OS/390). (Ralf Schandl)
Bram Moolenaar <bram@vim.org>
parents:
2173
diff
changeset
|
1096 #endif |
| 167 | 1097 } |
| 1098 regmbc(c); | |
| 1099 } | |
| 1100 | |
| 1101 /* | |
| 1102 * Check for a collating element "[.a.]". "pp" points to the '['. | |
| 1103 * Returns a character. Zero means that no item was recognized. Otherwise | |
| 1104 * "pp" is advanced to after the item. | |
| 1105 * Currently only single characters are recognized! | |
| 1106 */ | |
| 1107 static int | |
|
7833
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
1108 get_coll_element(char_u **pp) |
| 167 | 1109 { |
| 1110 int c; | |
| 1111 int l = 1; | |
| 1112 char_u *p = *pp; | |
| 1113 | |
|
15860
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patch 8.1.0937: invalid memory access in search pattern
Bram Moolenaar <Bram@vim.org>
parents:
15856
diff
changeset
|
1114 if (p[0] != NUL && p[1] == '.' && p[2] != NUL) |
| 167 | 1115 { |
| 1116 if (has_mbyte) | |
| 474 | 1117 l = (*mb_ptr2len)(p + 2); |
| 167 | 1118 if (p[l + 2] == '.' && p[l + 3] == ']') |
| 1119 { | |
| 1120 if (has_mbyte) | |
| 1121 c = mb_ptr2char(p + 2); | |
| 1122 else | |
| 1123 c = p[2]; | |
| 1124 *pp += l + 4; | |
| 1125 return c; | |
| 1126 } | |
| 1127 } | |
| 1128 return 0; | |
| 1129 } | |
| 1130 | |
|
4744
a62695305e03
updated for version 7.3.1119
Bram Moolenaar <bram@vim.org>
parents:
4732
diff
changeset
|
1131 static int reg_cpo_lit; /* 'cpoptions' contains 'l' flag */ |
|
a62695305e03
updated for version 7.3.1119
Bram Moolenaar <bram@vim.org>
parents:
4732
diff
changeset
|
1132 static int reg_cpo_bsl; /* 'cpoptions' contains '\' flag */ |
|
a62695305e03
updated for version 7.3.1119
Bram Moolenaar <bram@vim.org>
parents:
4732
diff
changeset
|
1133 |
|
a62695305e03
updated for version 7.3.1119
Bram Moolenaar <bram@vim.org>
parents:
4732
diff
changeset
|
1134 static void |
|
7833
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
1135 get_cpo_flags(void) |
|
4744
a62695305e03
updated for version 7.3.1119
Bram Moolenaar <bram@vim.org>
parents:
4732
diff
changeset
|
1136 { |
|
a62695305e03
updated for version 7.3.1119
Bram Moolenaar <bram@vim.org>
parents:
4732
diff
changeset
|
1137 reg_cpo_lit = vim_strchr(p_cpo, CPO_LITERAL) != NULL; |
|
a62695305e03
updated for version 7.3.1119
Bram Moolenaar <bram@vim.org>
parents:
4732
diff
changeset
|
1138 reg_cpo_bsl = vim_strchr(p_cpo, CPO_BACKSL) != NULL; |
|
a62695305e03
updated for version 7.3.1119
Bram Moolenaar <bram@vim.org>
parents:
4732
diff
changeset
|
1139 } |
| 167 | 1140 |
| 1141 /* | |
| 1142 * Skip over a "[]" range. | |
| 1143 * "p" must point to the character after the '['. | |
| 1144 * The returned pointer is on the matching ']', or the terminating NUL. | |
| 1145 */ | |
| 1146 static char_u * | |
|
7833
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
1147 skip_anyof(char_u *p) |
| 167 | 1148 { |
| 1149 int l; | |
| 1150 | |
| 1151 if (*p == '^') /* Complement of range. */ | |
| 1152 ++p; | |
| 1153 if (*p == ']' || *p == '-') | |
| 1154 ++p; | |
| 1155 while (*p != NUL && *p != ']') | |
| 1156 { | |
| 474 | 1157 if (has_mbyte && (l = (*mb_ptr2len)(p)) > 1) |
| 167 | 1158 p += l; |
| 1159 else | |
| 1160 if (*p == '-') | |
| 1161 { | |
| 1162 ++p; | |
| 1163 if (*p != ']' && *p != NUL) | |
|
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1164 MB_PTR_ADV(p); |
| 167 | 1165 } |
| 1166 else if (*p == '\\' | |
|
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1167 && !reg_cpo_bsl |
| 167 | 1168 && (vim_strchr(REGEXP_INRANGE, p[1]) != NULL |
|
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1169 || (!reg_cpo_lit && vim_strchr(REGEXP_ABBR, p[1]) != NULL))) |
| 167 | 1170 p += 2; |
| 1171 else if (*p == '[') | |
| 1172 { | |
| 1173 if (get_char_class(&p) == CLASS_NONE | |
| 1174 && get_equi_class(&p) == 0 | |
| 6830 | 1175 && get_coll_element(&p) == 0 |
| 1176 && *p != NUL) | |
| 1177 ++p; /* it is not a class name and not NUL */ | |
| 167 | 1178 } |
| 1179 else | |
| 1180 ++p; | |
| 1181 } | |
| 1182 | |
| 1183 return p; | |
| 1184 } | |
| 1185 | |
| 1186 /* | |
| 7 | 1187 * Skip past regular expression. |
| 153 | 1188 * Stop at end of "startp" or where "dirc" is found ('/', '?', etc). |
| 7 | 1189 * Take care of characters with a backslash in front of it. |
| 1190 * Skip strings inside [ and ]. | |
| 1191 * When "newp" is not NULL and "dirc" is '?', make an allocated copy of the | |
| 1192 * expression and change "\?" to "?". If "*newp" is not NULL the expression | |
| 1193 * is changed in-place. | |
| 1194 */ | |
| 1195 char_u * | |
|
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1196 skip_regexp( |
|
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1197 char_u *startp, |
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1198 int dirc, |
|
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1199 int magic, |
|
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1200 char_u **newp) |
| 7 | 1201 { |
| 1202 int mymagic; | |
| 1203 char_u *p = startp; | |
| 1204 | |
| 1205 if (magic) | |
| 1206 mymagic = MAGIC_ON; | |
| 1207 else | |
| 1208 mymagic = MAGIC_OFF; | |
|
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1209 get_cpo_flags(); |
| 7 | 1210 |
|
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1211 for (; p[0] != NUL; MB_PTR_ADV(p)) |
| 7 | 1212 { |
| 1213 if (p[0] == dirc) /* found end of regexp */ | |
| 1214 break; | |
| 1215 if ((p[0] == '[' && mymagic >= MAGIC_ON) | |
| 1216 || (p[0] == '\\' && p[1] == '[' && mymagic <= MAGIC_OFF)) | |
| 1217 { | |
| 1218 p = skip_anyof(p + 1); | |
| 1219 if (p[0] == NUL) | |
| 1220 break; | |
| 1221 } | |
| 1222 else if (p[0] == '\\' && p[1] != NUL) | |
| 1223 { | |
| 1224 if (dirc == '?' && newp != NULL && p[1] == '?') | |
| 1225 { | |
| 1226 /* change "\?" to "?", make a copy first. */ | |
| 1227 if (*newp == NULL) | |
| 1228 { | |
| 1229 *newp = vim_strsave(startp); | |
| 1230 if (*newp != NULL) | |
| 1231 p = *newp + (p - startp); | |
| 1232 } | |
| 1233 if (*newp != NULL) | |
| 1621 | 1234 STRMOVE(p, p + 1); |
| 7 | 1235 else |
| 1236 ++p; | |
| 1237 } | |
| 1238 else | |
| 1239 ++p; /* skip next character */ | |
| 1240 if (*p == 'v') | |
| 1241 mymagic = MAGIC_ALL; | |
| 1242 else if (*p == 'V') | |
| 1243 mymagic = MAGIC_NONE; | |
| 1244 } | |
| 1245 } | |
| 1246 return p; | |
| 1247 } | |
| 1248 | |
|
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1249 /* |
|
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1250 * Return TRUE if the back reference is legal. We must have seen the close |
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1251 * brace. |
|
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1252 * TODO: Should also check that we don't refer to something that is repeated |
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1253 * (+*=): what instance of the repetition should we match? |
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1254 */ |
|
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1255 static int |
|
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1256 seen_endbrace(int refnum) |
|
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1257 { |
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1258 if (!had_endbrace[refnum]) |
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1259 { |
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1260 char_u *p; |
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1261 |
|
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1262 /* Trick: check if "@<=" or "@<!" follows, in which case |
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1263 * the \1 can appear before the referenced match. */ |
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1264 for (p = regparse; *p != NUL; ++p) |
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1265 if (p[0] == '@' && p[1] == '<' && (p[2] == '!' || p[2] == '=')) |
|
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1266 break; |
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1267 if (*p == NUL) |
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1268 { |
|
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1269 emsg(_("E65: Illegal back reference")); |
|
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1270 rc_did_emsg = TRUE; |
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1271 return FALSE; |
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1272 } |
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1273 } |
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1274 return TRUE; |
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1275 } |
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1276 |
| 7 | 1277 /* |
| 4444 | 1278 * bt_regcomp() - compile a regular expression into internal code for the |
| 1279 * traditional back track matcher. | |
| 41 | 1280 * Returns the program in allocated space. Returns NULL for an error. |
| 7 | 1281 * |
| 1282 * We can't allocate space until we know how big the compiled form will be, | |
| 1283 * but we can't compile it (and thus know how big it is) until we've got a | |
| 1284 * place to put the code. So we cheat: we compile it twice, once with code | |
| 1285 * generation turned off and size counting turned on, and once "for real". | |
| 1286 * This also means that we don't allocate space until we are sure that the | |
| 1287 * thing really will compile successfully, and we never have to move the | |
| 1288 * code and thus invalidate pointers into it. (Note that it has to be in | |
| 1289 * one piece because vim_free() must be able to free it all.) | |
| 1290 * | |
| 1291 * Whether upper/lower case is to be ignored is decided when executing the | |
| 1292 * program, it does not matter here. | |
| 1293 * | |
| 1294 * Beware that the optimization-preparation code in here knows about some | |
| 1295 * of the structure of the compiled regexp. | |
| 1296 * "re_flags": RE_MAGIC and/or RE_STRING. | |
| 1297 */ | |
| 4444 | 1298 static regprog_T * |
|
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1299 bt_regcomp(char_u *expr, int re_flags) |
| 7 | 1300 { |
| 4444 | 1301 bt_regprog_T *r; |
| 7 | 1302 char_u *scan; |
| 1303 char_u *longest; | |
| 1304 int len; | |
| 1305 int flags; | |
| 1306 | |
| 1307 if (expr == NULL) | |
| 1308 EMSG_RET_NULL(_(e_null)); | |
| 1309 | |
| 1310 init_class_tab(); | |
| 1311 | |
| 1312 /* | |
| 1313 * First pass: determine size, legality. | |
| 1314 */ | |
| 1315 regcomp_start(expr, re_flags); | |
| 1316 regcode = JUST_CALC_SIZE; | |
| 1317 regc(REGMAGIC); | |
| 1318 if (reg(REG_NOPAREN, &flags) == NULL) | |
| 1319 return NULL; | |
| 1320 | |
| 1321 /* Allocate space. */ | |
| 4444 | 1322 r = (bt_regprog_T *)lalloc(sizeof(bt_regprog_T) + regsize, TRUE); |
| 7 | 1323 if (r == NULL) |
| 1324 return NULL; | |
|
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1325 r->re_in_use = FALSE; |
| 7 | 1326 |
| 1327 /* | |
| 1328 * Second pass: emit code. | |
| 1329 */ | |
| 1330 regcomp_start(expr, re_flags); | |
| 1331 regcode = r->program; | |
| 1332 regc(REGMAGIC); | |
| 2010 | 1333 if (reg(REG_NOPAREN, &flags) == NULL || reg_toolong) |
| 7 | 1334 { |
| 1335 vim_free(r); | |
| 2010 | 1336 if (reg_toolong) |
| 1337 EMSG_RET_NULL(_("E339: Pattern too long")); | |
| 7 | 1338 return NULL; |
| 1339 } | |
| 1340 | |
| 1341 /* Dig out information for optimizations. */ | |
| 1342 r->regstart = NUL; /* Worst-case defaults. */ | |
| 1343 r->reganch = 0; | |
| 1344 r->regmust = NULL; | |
| 1345 r->regmlen = 0; | |
| 1346 r->regflags = regflags; | |
| 1347 if (flags & HASNL) | |
| 1348 r->regflags |= RF_HASNL; | |
| 1349 if (flags & HASLOOKBH) | |
| 1350 r->regflags |= RF_LOOKBH; | |
| 1351 #ifdef FEAT_SYN_HL | |
| 1352 /* Remember whether this pattern has any \z specials in it. */ | |
| 1353 r->reghasz = re_has_z; | |
| 1354 #endif | |
| 1355 scan = r->program + 1; /* First BRANCH. */ | |
| 1356 if (OP(regnext(scan)) == END) /* Only one top-level choice. */ | |
| 1357 { | |
| 1358 scan = OPERAND(scan); | |
| 1359 | |
| 1360 /* Starting-point info. */ | |
| 1361 if (OP(scan) == BOL || OP(scan) == RE_BOF) | |
| 1362 { | |
| 1363 r->reganch++; | |
| 1364 scan = regnext(scan); | |
| 1365 } | |
| 1366 | |
| 1367 if (OP(scan) == EXACTLY) | |
| 1368 { | |
| 1369 if (has_mbyte) | |
| 1370 r->regstart = (*mb_ptr2char)(OPERAND(scan)); | |
| 1371 else | |
| 1372 r->regstart = *OPERAND(scan); | |
| 1373 } | |
| 1374 else if ((OP(scan) == BOW | |
| 1375 || OP(scan) == EOW | |
| 1376 || OP(scan) == NOTHING | |
| 1377 || OP(scan) == MOPEN + 0 || OP(scan) == NOPEN | |
| 1378 || OP(scan) == MCLOSE + 0 || OP(scan) == NCLOSE) | |
| 1379 && OP(regnext(scan)) == EXACTLY) | |
| 1380 { | |
| 1381 if (has_mbyte) | |
| 1382 r->regstart = (*mb_ptr2char)(OPERAND(regnext(scan))); | |
| 1383 else | |
| 1384 r->regstart = *OPERAND(regnext(scan)); | |
| 1385 } | |
| 1386 | |
| 1387 /* | |
| 1388 * If there's something expensive in the r.e., find the longest | |
| 1389 * literal string that must appear and make it the regmust. Resolve | |
| 1390 * ties in favor of later strings, since the regstart check works | |
| 1391 * with the beginning of the r.e. and avoiding duplication | |
| 1392 * strengthens checking. Not a strong reason, but sufficient in the | |
| 1393 * absence of others. | |
| 1394 */ | |
| 1395 /* | |
| 1396 * When the r.e. starts with BOW, it is faster to look for a regmust | |
| 1397 * first. Used a lot for "#" and "*" commands. (Added by mool). | |
| 1398 */ | |
| 1399 if ((flags & SPSTART || OP(scan) == BOW || OP(scan) == EOW) | |
| 1400 && !(flags & HASNL)) | |
| 1401 { | |
| 1402 longest = NULL; | |
| 1403 len = 0; | |
| 1404 for (; scan != NULL; scan = regnext(scan)) | |
| 1405 if (OP(scan) == EXACTLY && STRLEN(OPERAND(scan)) >= (size_t)len) | |
| 1406 { | |
| 1407 longest = OPERAND(scan); | |
| 1408 len = (int)STRLEN(OPERAND(scan)); | |
| 1409 } | |
| 1410 r->regmust = longest; | |
| 1411 r->regmlen = len; | |
| 1412 } | |
| 1413 } | |
| 4444 | 1414 #ifdef BT_REGEXP_DUMP |
| 7 | 1415 regdump(expr, r); |
| 1416 #endif | |
| 4444 | 1417 r->engine = &bt_regengine; |
| 1418 return (regprog_T *)r; | |
| 7 | 1419 } |
| 1420 | |
| 1421 /* | |
|
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1422 * Free a compiled regexp program, returned by bt_regcomp(). |
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1423 */ |
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1424 static void |
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1425 bt_regfree(regprog_T *prog) |
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1426 { |
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1427 vim_free(prog); |
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1428 } |
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1429 |
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1430 /* |
| 7 | 1431 * Setup to parse the regexp. Used once to get the length and once to do it. |
| 1432 */ | |
| 1433 static void | |
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1434 regcomp_start( |
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1435 char_u *expr, |
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1436 int re_flags) /* see vim_regcomp() */ |
| 7 | 1437 { |
| 1438 initchr(expr); | |
| 1439 if (re_flags & RE_MAGIC) | |
| 1440 reg_magic = MAGIC_ON; | |
| 1441 else | |
| 1442 reg_magic = MAGIC_OFF; | |
| 1443 reg_string = (re_flags & RE_STRING); | |
| 481 | 1444 reg_strict = (re_flags & RE_STRICT); |
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1445 get_cpo_flags(); |
| 7 | 1446 |
| 1447 num_complex_braces = 0; | |
| 1448 regnpar = 1; | |
| 1449 vim_memset(had_endbrace, 0, sizeof(had_endbrace)); | |
| 1450 #ifdef FEAT_SYN_HL | |
| 1451 regnzpar = 1; | |
| 1452 re_has_z = 0; | |
| 1453 #endif | |
| 1454 regsize = 0L; | |
| 2010 | 1455 reg_toolong = FALSE; |
| 7 | 1456 regflags = 0; |
| 1457 #if defined(FEAT_SYN_HL) || defined(PROTO) | |
| 1458 had_eol = FALSE; | |
| 1459 #endif | |
| 1460 } | |
| 1461 | |
| 1462 #if defined(FEAT_SYN_HL) || defined(PROTO) | |
| 1463 /* | |
| 1464 * Check if during the previous call to vim_regcomp the EOL item "$" has been | |
| 1465 * found. This is messy, but it works fine. | |
| 1466 */ | |
| 1467 int | |
|
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1468 vim_regcomp_had_eol(void) |
| 7 | 1469 { |
| 1470 return had_eol; | |
| 1471 } | |
| 1472 #endif | |
| 1473 | |
|
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|
1474 // variables used for parsing |
|
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|
1475 static int at_start; // True when on the first character |
|
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diff
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|
1476 static int prev_at_start; // True when on the second character |
|
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|
1477 |
| 7 | 1478 /* |
| 4444 | 1479 * Parse regular expression, i.e. main body or parenthesized thing. |
| 7 | 1480 * |
| 1481 * Caller must absorb opening parenthesis. | |
| 1482 * | |
| 1483 * Combining parenthesis handling with the base level of regular expression | |
| 1484 * is a trifle forced, but the need to tie the tails of the branches to what | |
| 1485 * follows makes it hard to avoid. | |
| 1486 */ | |
| 1487 static char_u * | |
|
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|
1488 reg( |
|
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|
1489 int paren, /* REG_NOPAREN, REG_PAREN, REG_NPAREN or REG_ZPAREN */ |
|
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|
1490 int *flagp) |
| 7 | 1491 { |
| 1492 char_u *ret; | |
| 1493 char_u *br; | |
| 1494 char_u *ender; | |
| 1495 int parno = 0; | |
| 1496 int flags; | |
| 1497 | |
| 1498 *flagp = HASWIDTH; /* Tentatively. */ | |
| 1499 | |
| 1500 #ifdef FEAT_SYN_HL | |
| 1501 if (paren == REG_ZPAREN) | |
| 1502 { | |
| 1503 /* Make a ZOPEN node. */ | |
| 1504 if (regnzpar >= NSUBEXP) | |
| 1505 EMSG_RET_NULL(_("E50: Too many \\z(")); | |
| 1506 parno = regnzpar; | |
| 1507 regnzpar++; | |
| 1508 ret = regnode(ZOPEN + parno); | |
| 1509 } | |
| 1510 else | |
| 1511 #endif | |
| 1512 if (paren == REG_PAREN) | |
| 1513 { | |
| 1514 /* Make a MOPEN node. */ | |
| 1515 if (regnpar >= NSUBEXP) | |
| 4444 | 1516 EMSG2_RET_NULL(_("E51: Too many %s("), reg_magic == MAGIC_ALL); |
| 7 | 1517 parno = regnpar; |
| 1518 ++regnpar; | |
| 1519 ret = regnode(MOPEN + parno); | |
| 1520 } | |
| 1521 else if (paren == REG_NPAREN) | |
| 1522 { | |
| 1523 /* Make a NOPEN node. */ | |
| 1524 ret = regnode(NOPEN); | |
| 1525 } | |
| 1526 else | |
| 1527 ret = NULL; | |
| 1528 | |
| 1529 /* Pick up the branches, linking them together. */ | |
| 1530 br = regbranch(&flags); | |
| 1531 if (br == NULL) | |
| 1532 return NULL; | |
| 1533 if (ret != NULL) | |
| 1534 regtail(ret, br); /* [MZ]OPEN -> first. */ | |
| 1535 else | |
| 1536 ret = br; | |
| 1537 /* If one of the branches can be zero-width, the whole thing can. | |
| 1538 * If one of the branches has * at start or matches a line-break, the | |
| 1539 * whole thing can. */ | |
| 1540 if (!(flags & HASWIDTH)) | |
| 1541 *flagp &= ~HASWIDTH; | |
| 1542 *flagp |= flags & (SPSTART | HASNL | HASLOOKBH); | |
| 1543 while (peekchr() == Magic('|')) | |
| 1544 { | |
| 1545 skipchr(); | |
| 1546 br = regbranch(&flags); | |
| 2010 | 1547 if (br == NULL || reg_toolong) |
| 7 | 1548 return NULL; |
| 1549 regtail(ret, br); /* BRANCH -> BRANCH. */ | |
| 1550 if (!(flags & HASWIDTH)) | |
| 1551 *flagp &= ~HASWIDTH; | |
| 1552 *flagp |= flags & (SPSTART | HASNL | HASLOOKBH); | |
| 1553 } | |
| 1554 | |
| 1555 /* Make a closing node, and hook it on the end. */ | |
| 1556 ender = regnode( | |
| 1557 #ifdef FEAT_SYN_HL | |
| 1558 paren == REG_ZPAREN ? ZCLOSE + parno : | |
| 1559 #endif | |
| 1560 paren == REG_PAREN ? MCLOSE + parno : | |
| 1561 paren == REG_NPAREN ? NCLOSE : END); | |
| 1562 regtail(ret, ender); | |
| 1563 | |
| 1564 /* Hook the tails of the branches to the closing node. */ | |
| 1565 for (br = ret; br != NULL; br = regnext(br)) | |
| 1566 regoptail(br, ender); | |
| 1567 | |
| 1568 /* Check for proper termination. */ | |
| 1569 if (paren != REG_NOPAREN && getchr() != Magic(')')) | |
| 1570 { | |
| 1571 #ifdef FEAT_SYN_HL | |
| 1572 if (paren == REG_ZPAREN) | |
| 308 | 1573 EMSG_RET_NULL(_("E52: Unmatched \\z(")); |
| 7 | 1574 else |
| 1575 #endif | |
| 1576 if (paren == REG_NPAREN) | |
| 4444 | 1577 EMSG2_RET_NULL(_(e_unmatchedpp), reg_magic == MAGIC_ALL); |
| 7 | 1578 else |
| 4444 | 1579 EMSG2_RET_NULL(_(e_unmatchedp), reg_magic == MAGIC_ALL); |
| 7 | 1580 } |
| 1581 else if (paren == REG_NOPAREN && peekchr() != NUL) | |
| 1582 { | |
| 1583 if (curchr == Magic(')')) | |
| 4444 | 1584 EMSG2_RET_NULL(_(e_unmatchedpar), reg_magic == MAGIC_ALL); |
| 7 | 1585 else |
| 308 | 1586 EMSG_RET_NULL(_(e_trailing)); /* "Can't happen". */ |
| 7 | 1587 /* NOTREACHED */ |
| 1588 } | |
| 1589 /* | |
| 1590 * Here we set the flag allowing back references to this set of | |
| 1591 * parentheses. | |
| 1592 */ | |
| 1593 if (paren == REG_PAREN) | |
| 1594 had_endbrace[parno] = TRUE; /* have seen the close paren */ | |
| 1595 return ret; | |
| 1596 } | |
| 1597 | |
| 1598 /* | |
| 4444 | 1599 * Parse one alternative of an | operator. |
| 7 | 1600 * Implements the & operator. |
| 1601 */ | |
| 1602 static char_u * | |
|
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diff
changeset
|
1603 regbranch(int *flagp) |
| 7 | 1604 { |
| 1605 char_u *ret; | |
| 1606 char_u *chain = NULL; | |
| 1607 char_u *latest; | |
| 1608 int flags; | |
| 1609 | |
| 1610 *flagp = WORST | HASNL; /* Tentatively. */ | |
| 1611 | |
| 1612 ret = regnode(BRANCH); | |
| 1613 for (;;) | |
| 1614 { | |
| 1615 latest = regconcat(&flags); | |
| 1616 if (latest == NULL) | |
| 1617 return NULL; | |
| 1618 /* If one of the branches has width, the whole thing has. If one of | |
| 1619 * the branches anchors at start-of-line, the whole thing does. | |
| 1620 * If one of the branches uses look-behind, the whole thing does. */ | |
| 1621 *flagp |= flags & (HASWIDTH | SPSTART | HASLOOKBH); | |
| 1622 /* If one of the branches doesn't match a line-break, the whole thing | |
| 1623 * doesn't. */ | |
| 1624 *flagp &= ~HASNL | (flags & HASNL); | |
| 1625 if (chain != NULL) | |
| 1626 regtail(chain, latest); | |
| 1627 if (peekchr() != Magic('&')) | |
| 1628 break; | |
| 1629 skipchr(); | |
| 1630 regtail(latest, regnode(END)); /* operand ends */ | |
| 2010 | 1631 if (reg_toolong) |
| 1632 break; | |
| 7 | 1633 reginsert(MATCH, latest); |
| 1634 chain = latest; | |
| 1635 } | |
| 1636 | |
| 1637 return ret; | |
| 1638 } | |
| 1639 | |
| 1640 /* | |
| 4444 | 1641 * Parse one alternative of an | or & operator. |
| 7 | 1642 * Implements the concatenation operator. |
| 1643 */ | |
| 1644 static char_u * | |
|
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|
1645 regconcat(int *flagp) |
| 7 | 1646 { |
| 1647 char_u *first = NULL; | |
| 1648 char_u *chain = NULL; | |
| 1649 char_u *latest; | |
| 1650 int flags; | |
| 1651 int cont = TRUE; | |
| 1652 | |
| 1653 *flagp = WORST; /* Tentatively. */ | |
| 1654 | |
| 1655 while (cont) | |
| 1656 { | |
| 1657 switch (peekchr()) | |
| 1658 { | |
| 1659 case NUL: | |
| 1660 case Magic('|'): | |
| 1661 case Magic('&'): | |
| 1662 case Magic(')'): | |
| 1663 cont = FALSE; | |
| 1664 break; | |
| 1665 case Magic('Z'): | |
| 1666 regflags |= RF_ICOMBINE; | |
| 1667 skipchr_keepstart(); | |
| 1668 break; | |
| 1669 case Magic('c'): | |
| 1670 regflags |= RF_ICASE; | |
| 1671 skipchr_keepstart(); | |
| 1672 break; | |
| 1673 case Magic('C'): | |
| 1674 regflags |= RF_NOICASE; | |
| 1675 skipchr_keepstart(); | |
| 1676 break; | |
| 1677 case Magic('v'): | |
| 1678 reg_magic = MAGIC_ALL; | |
| 1679 skipchr_keepstart(); | |
| 1680 curchr = -1; | |
| 1681 break; | |
| 1682 case Magic('m'): | |
| 1683 reg_magic = MAGIC_ON; | |
| 1684 skipchr_keepstart(); | |
| 1685 curchr = -1; | |
| 1686 break; | |
| 1687 case Magic('M'): | |
| 1688 reg_magic = MAGIC_OFF; | |
| 1689 skipchr_keepstart(); | |
| 1690 curchr = -1; | |
| 1691 break; | |
| 1692 case Magic('V'): | |
| 1693 reg_magic = MAGIC_NONE; | |
| 1694 skipchr_keepstart(); | |
| 1695 curchr = -1; | |
| 1696 break; | |
| 1697 default: | |
| 1698 latest = regpiece(&flags); | |
| 2010 | 1699 if (latest == NULL || reg_toolong) |
| 7 | 1700 return NULL; |
| 1701 *flagp |= flags & (HASWIDTH | HASNL | HASLOOKBH); | |
| 1702 if (chain == NULL) /* First piece. */ | |
| 1703 *flagp |= flags & SPSTART; | |
| 1704 else | |
| 1705 regtail(chain, latest); | |
| 1706 chain = latest; | |
| 1707 if (first == NULL) | |
| 1708 first = latest; | |
| 1709 break; | |
| 1710 } | |
| 1711 } | |
| 1712 if (first == NULL) /* Loop ran zero times. */ | |
| 1713 first = regnode(NOTHING); | |
| 1714 return first; | |
| 1715 } | |
| 1716 | |
| 1717 /* | |
| 4444 | 1718 * Parse something followed by possible [*+=]. |
| 7 | 1719 * |
| 1720 * Note that the branching code sequences used for = and the general cases | |
| 1721 * of * and + are somewhat optimized: they use the same NOTHING node as | |
| 1722 * both the endmarker for their branch list and the body of the last branch. | |
| 1723 * It might seem that this node could be dispensed with entirely, but the | |
| 1724 * endmarker role is not redundant. | |
| 1725 */ | |
| 1726 static char_u * | |
|
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1727 regpiece(int *flagp) |
| 7 | 1728 { |
| 1729 char_u *ret; | |
| 1730 int op; | |
| 1731 char_u *next; | |
| 1732 int flags; | |
| 1733 long minval; | |
| 1734 long maxval; | |
| 1735 | |
| 1736 ret = regatom(&flags); | |
| 1737 if (ret == NULL) | |
| 1738 return NULL; | |
| 1739 | |
| 1740 op = peekchr(); | |
| 1741 if (re_multi_type(op) == NOT_MULTI) | |
| 1742 { | |
| 1743 *flagp = flags; | |
| 1744 return ret; | |
| 1745 } | |
| 1746 /* default flags */ | |
| 1747 *flagp = (WORST | SPSTART | (flags & (HASNL | HASLOOKBH))); | |
| 1748 | |
| 1749 skipchr(); | |
| 1750 switch (op) | |
| 1751 { | |
| 1752 case Magic('*'): | |
| 1753 if (flags & SIMPLE) | |
| 1754 reginsert(STAR, ret); | |
| 1755 else | |
| 1756 { | |
| 1757 /* Emit x* as (x&|), where & means "self". */ | |
| 1758 reginsert(BRANCH, ret); /* Either x */ | |
| 1759 regoptail(ret, regnode(BACK)); /* and loop */ | |
| 1760 regoptail(ret, ret); /* back */ | |
| 1761 regtail(ret, regnode(BRANCH)); /* or */ | |
| 1762 regtail(ret, regnode(NOTHING)); /* null. */ | |
| 1763 } | |
| 1764 break; | |
| 1765 | |
| 1766 case Magic('+'): | |
| 1767 if (flags & SIMPLE) | |
| 1768 reginsert(PLUS, ret); | |
| 1769 else | |
| 1770 { | |
| 1771 /* Emit x+ as x(&|), where & means "self". */ | |
| 1772 next = regnode(BRANCH); /* Either */ | |
| 1773 regtail(ret, next); | |
| 233 | 1774 regtail(regnode(BACK), ret); /* loop back */ |
| 7 | 1775 regtail(next, regnode(BRANCH)); /* or */ |
| 1776 regtail(ret, regnode(NOTHING)); /* null. */ | |
| 1777 } | |
| 1778 *flagp = (WORST | HASWIDTH | (flags & (HASNL | HASLOOKBH))); | |
| 1779 break; | |
| 1780 | |
| 1781 case Magic('@'): | |
| 1782 { | |
| 1783 int lop = END; | |
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1784 long nr; |
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1785 |
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1786 nr = getdecchrs(); |
| 7 | 1787 switch (no_Magic(getchr())) |
| 1788 { | |
| 1789 case '=': lop = MATCH; break; /* \@= */ | |
| 1790 case '!': lop = NOMATCH; break; /* \@! */ | |
| 1791 case '>': lop = SUBPAT; break; /* \@> */ | |
| 1792 case '<': switch (no_Magic(getchr())) | |
| 1793 { | |
| 1794 case '=': lop = BEHIND; break; /* \@<= */ | |
| 1795 case '!': lop = NOBEHIND; break; /* \@<! */ | |
| 1796 } | |
| 1797 } | |
| 1798 if (lop == END) | |
| 4444 | 1799 EMSG2_RET_NULL(_("E59: invalid character after %s@"), |
| 7 | 1800 reg_magic == MAGIC_ALL); |
| 1801 /* Look behind must match with behind_pos. */ | |
| 1802 if (lop == BEHIND || lop == NOBEHIND) | |
| 1803 { | |
| 1804 regtail(ret, regnode(BHPOS)); | |
| 1805 *flagp |= HASLOOKBH; | |
| 1806 } | |
| 1807 regtail(ret, regnode(END)); /* operand ends */ | |
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1808 if (lop == BEHIND || lop == NOBEHIND) |
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1809 { |
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1810 if (nr < 0) |
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1811 nr = 0; /* no limit is same as zero limit */ |
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1812 reginsert_nr(lop, nr, ret); |
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1813 } |
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1814 else |
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1815 reginsert(lop, ret); |
| 7 | 1816 break; |
| 1817 } | |
| 1818 | |
| 1819 case Magic('?'): | |
| 1820 case Magic('='): | |
| 1821 /* Emit x= as (x|) */ | |
| 1822 reginsert(BRANCH, ret); /* Either x */ | |
| 1823 regtail(ret, regnode(BRANCH)); /* or */ | |
| 1824 next = regnode(NOTHING); /* null. */ | |
| 1825 regtail(ret, next); | |
| 1826 regoptail(ret, next); | |
| 1827 break; | |
| 1828 | |
| 1829 case Magic('{'): | |
| 1830 if (!read_limits(&minval, &maxval)) | |
| 1831 return NULL; | |
| 1832 if (flags & SIMPLE) | |
| 1833 { | |
| 1834 reginsert(BRACE_SIMPLE, ret); | |
| 1835 reginsert_limits(BRACE_LIMITS, minval, maxval, ret); | |
| 1836 } | |
| 1837 else | |
| 1838 { | |
| 1839 if (num_complex_braces >= 10) | |
| 4444 | 1840 EMSG2_RET_NULL(_("E60: Too many complex %s{...}s"), |
| 7 | 1841 reg_magic == MAGIC_ALL); |
| 1842 reginsert(BRACE_COMPLEX + num_complex_braces, ret); | |
| 1843 regoptail(ret, regnode(BACK)); | |
| 1844 regoptail(ret, ret); | |
| 1845 reginsert_limits(BRACE_LIMITS, minval, maxval, ret); | |
| 1846 ++num_complex_braces; | |
| 1847 } | |
| 1848 if (minval > 0 && maxval > 0) | |
| 1849 *flagp = (HASWIDTH | (flags & (HASNL | HASLOOKBH))); | |
| 1850 break; | |
| 1851 } | |
| 1852 if (re_multi_type(peekchr()) != NOT_MULTI) | |
| 1853 { | |
|
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1854 // Can't have a multi follow a multi. |
| 7 | 1855 if (peekchr() == Magic('*')) |
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1856 EMSG2_RET_NULL(_("E61: Nested %s*"), reg_magic >= MAGIC_ON); |
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1857 EMSG3_RET_NULL(_("E62: Nested %s%c"), reg_magic == MAGIC_ALL, |
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1858 no_Magic(peekchr())); |
| 7 | 1859 } |
| 1860 | |
| 1861 return ret; | |
| 1862 } | |
| 1863 | |
| 4444 | 1864 /* When making changes to classchars also change nfa_classcodes. */ |
| 1865 static char_u *classchars = (char_u *)".iIkKfFpPsSdDxXoOwWhHaAlLuU"; | |
| 1866 static int classcodes[] = { | |
| 1867 ANY, IDENT, SIDENT, KWORD, SKWORD, | |
| 1868 FNAME, SFNAME, PRINT, SPRINT, | |
| 1869 WHITE, NWHITE, DIGIT, NDIGIT, | |
| 1870 HEX, NHEX, OCTAL, NOCTAL, | |
| 1871 WORD, NWORD, HEAD, NHEAD, | |
| 1872 ALPHA, NALPHA, LOWER, NLOWER, | |
| 1873 UPPER, NUPPER | |
| 1874 }; | |
| 1875 | |
| 7 | 1876 /* |
| 4444 | 1877 * Parse the lowest level. |
| 7 | 1878 * |
| 1879 * Optimization: gobbles an entire sequence of ordinary characters so that | |
| 1880 * it can turn them into a single node, which is smaller to store and | |
| 1881 * faster to run. Don't do this when one_exactly is set. | |
| 1882 */ | |
| 1883 static char_u * | |
|
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1884 regatom(int *flagp) |
| 7 | 1885 { |
| 1886 char_u *ret; | |
| 1887 int flags; | |
| 1888 int c; | |
| 1889 char_u *p; | |
| 1890 int extra = 0; | |
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1891 int save_prev_at_start = prev_at_start; |
| 7 | 1892 |
| 1893 *flagp = WORST; /* Tentatively. */ | |
| 1894 | |
| 1895 c = getchr(); | |
| 1896 switch (c) | |
| 1897 { | |
| 1898 case Magic('^'): | |
| 1899 ret = regnode(BOL); | |
| 1900 break; | |
| 1901 | |
| 1902 case Magic('$'): | |
| 1903 ret = regnode(EOL); | |
| 1904 #if defined(FEAT_SYN_HL) || defined(PROTO) | |
| 1905 had_eol = TRUE; | |
| 1906 #endif | |
| 1907 break; | |
| 1908 | |
| 1909 case Magic('<'): | |
| 1910 ret = regnode(BOW); | |
| 1911 break; | |
| 1912 | |
| 1913 case Magic('>'): | |
| 1914 ret = regnode(EOW); | |
| 1915 break; | |
| 1916 | |
| 1917 case Magic('_'): | |
| 1918 c = no_Magic(getchr()); | |
| 1919 if (c == '^') /* "\_^" is start-of-line */ | |
| 1920 { | |
| 1921 ret = regnode(BOL); | |
| 1922 break; | |
| 1923 } | |
| 1924 if (c == '$') /* "\_$" is end-of-line */ | |
| 1925 { | |
| 1926 ret = regnode(EOL); | |
| 1927 #if defined(FEAT_SYN_HL) || defined(PROTO) | |
| 1928 had_eol = TRUE; | |
| 1929 #endif | |
| 1930 break; | |
| 1931 } | |
| 1932 | |
| 1933 extra = ADD_NL; | |
| 1934 *flagp |= HASNL; | |
| 1935 | |
| 1936 /* "\_[" is character range plus newline */ | |
| 1937 if (c == '[') | |
| 1938 goto collection; | |
| 1939 | |
| 1940 /* "\_x" is character class plus newline */ | |
|
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patch 8.0.1215: newer gcc warns for implicit fallthrough
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diff
changeset
|
1941 /* FALLTHROUGH */ |
| 7 | 1942 |
| 1943 /* | |
| 1944 * Character classes. | |
| 1945 */ | |
| 1946 case Magic('.'): | |
| 1947 case Magic('i'): | |
| 1948 case Magic('I'): | |
| 1949 case Magic('k'): | |
| 1950 case Magic('K'): | |
| 1951 case Magic('f'): | |
| 1952 case Magic('F'): | |
| 1953 case Magic('p'): | |
| 1954 case Magic('P'): | |
| 1955 case Magic('s'): | |
| 1956 case Magic('S'): | |
| 1957 case Magic('d'): | |
| 1958 case Magic('D'): | |
| 1959 case Magic('x'): | |
| 1960 case Magic('X'): | |
| 1961 case Magic('o'): | |
| 1962 case Magic('O'): | |
| 1963 case Magic('w'): | |
| 1964 case Magic('W'): | |
| 1965 case Magic('h'): | |
| 1966 case Magic('H'): | |
| 1967 case Magic('a'): | |
| 1968 case Magic('A'): | |
| 1969 case Magic('l'): | |
| 1970 case Magic('L'): | |
| 1971 case Magic('u'): | |
| 1972 case Magic('U'): | |
| 1973 p = vim_strchr(classchars, no_Magic(c)); | |
| 1974 if (p == NULL) | |
| 1975 EMSG_RET_NULL(_("E63: invalid use of \\_")); | |
|
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Bram Moolenaar <Bram@vim.org>
parents:
15555
diff
changeset
|
1976 |
| 714 | 1977 /* When '.' is followed by a composing char ignore the dot, so that |
| 1978 * the composing char is matched here. */ | |
| 1979 if (enc_utf8 && c == Magic('.') && utf_iscomposing(peekchr())) | |
| 1980 { | |
| 1981 c = getchr(); | |
| 1982 goto do_multibyte; | |
| 1983 } | |
| 7 | 1984 ret = regnode(classcodes[p - classchars] + extra); |
| 1985 *flagp |= HASWIDTH | SIMPLE; | |
| 1986 break; | |
| 1987 | |
| 1988 case Magic('n'): | |
| 1989 if (reg_string) | |
| 1990 { | |
| 1991 /* In a string "\n" matches a newline character. */ | |
| 1992 ret = regnode(EXACTLY); | |
| 1993 regc(NL); | |
| 1994 regc(NUL); | |
| 1995 *flagp |= HASWIDTH | SIMPLE; | |
| 1996 } | |
| 1997 else | |
| 1998 { | |
| 1999 /* In buffer text "\n" matches the end of a line. */ | |
| 2000 ret = regnode(NEWL); | |
| 2001 *flagp |= HASWIDTH | HASNL; | |
| 2002 } | |
| 2003 break; | |
| 2004 | |
| 2005 case Magic('('): | |
| 2006 if (one_exactly) | |
| 2007 EMSG_ONE_RET_NULL; | |
| 2008 ret = reg(REG_PAREN, &flags); | |
| 2009 if (ret == NULL) | |
| 2010 return NULL; | |
| 2011 *flagp |= flags & (HASWIDTH | SPSTART | HASNL | HASLOOKBH); | |
| 2012 break; | |
| 2013 | |
| 2014 case NUL: | |
| 2015 case Magic('|'): | |
| 2016 case Magic('&'): | |
| 2017 case Magic(')'): | |
| 1468 | 2018 if (one_exactly) |
| 2019 EMSG_ONE_RET_NULL; | |
|
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10245
diff
changeset
|
2020 IEMSG_RET_NULL(_(e_internal)); /* Supposed to be caught earlier. */ |
| 7 | 2021 /* NOTREACHED */ |
| 2022 | |
| 2023 case Magic('='): | |
| 2024 case Magic('?'): | |
| 2025 case Magic('+'): | |
| 2026 case Magic('@'): | |
| 2027 case Magic('{'): | |
| 2028 case Magic('*'): | |
| 2029 c = no_Magic(c); | |
|
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patch 8.1.0748: using sprintf() instead of semsg()
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diff
changeset
|
2030 EMSG3_RET_NULL(_("E64: %s%c follows nothing"), |
|
bd12ace1bab2
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changeset
|
2031 (c == '*' ? reg_magic >= MAGIC_ON : reg_magic == MAGIC_ALL), c); |
| 7 | 2032 /* NOTREACHED */ |
| 2033 | |
| 2034 case Magic('~'): /* previous substitute pattern */ | |
| 359 | 2035 if (reg_prev_sub != NULL) |
| 7 | 2036 { |
| 2037 char_u *lp; | |
| 2038 | |
| 2039 ret = regnode(EXACTLY); | |
| 2040 lp = reg_prev_sub; | |
| 2041 while (*lp != NUL) | |
| 2042 regc(*lp++); | |
| 2043 regc(NUL); | |
| 2044 if (*reg_prev_sub != NUL) | |
| 2045 { | |
| 2046 *flagp |= HASWIDTH; | |
| 2047 if ((lp - reg_prev_sub) == 1) | |
| 2048 *flagp |= SIMPLE; | |
| 2049 } | |
| 2050 } | |
| 2051 else | |
| 2052 EMSG_RET_NULL(_(e_nopresub)); | |
| 2053 break; | |
| 2054 | |
| 2055 case Magic('1'): | |
| 2056 case Magic('2'): | |
| 2057 case Magic('3'): | |
| 2058 case Magic('4'): | |
| 2059 case Magic('5'): | |
| 2060 case Magic('6'): | |
| 2061 case Magic('7'): | |
| 2062 case Magic('8'): | |
| 2063 case Magic('9'): | |
| 2064 { | |
| 2065 int refnum; | |
| 2066 | |
| 2067 refnum = c - Magic('0'); | |
|
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parents:
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diff
changeset
|
2068 if (!seen_endbrace(refnum)) |
|
14b6b79d685b
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Christian Brabandt <cb@256bit.org>
parents:
11521
diff
changeset
|
2069 return NULL; |
| 7 | 2070 ret = regnode(BACKREF + refnum); |
| 2071 } | |
| 2072 break; | |
| 2073 | |
| 2074 case Magic('z'): | |
| 2075 { | |
| 2076 c = no_Magic(getchr()); | |
| 2077 switch (c) | |
| 2078 { | |
| 741 | 2079 #ifdef FEAT_SYN_HL |
|
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patch 8.1.0098: segfault when pattern with z() is very slow
Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
2080 case '(': if ((reg_do_extmatch & REX_SET) == 0) |
|
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diff
changeset
|
2081 EMSG_RET_NULL(_(e_z_not_allowed)); |
| 7 | 2082 if (one_exactly) |
| 2083 EMSG_ONE_RET_NULL; | |
| 2084 ret = reg(REG_ZPAREN, &flags); | |
| 2085 if (ret == NULL) | |
| 2086 return NULL; | |
| 2087 *flagp |= flags & (HASWIDTH|SPSTART|HASNL|HASLOOKBH); | |
| 2088 re_has_z = REX_SET; | |
| 2089 break; | |
| 2090 | |
| 2091 case '1': | |
| 2092 case '2': | |
| 2093 case '3': | |
| 2094 case '4': | |
| 2095 case '5': | |
| 2096 case '6': | |
| 2097 case '7': | |
| 2098 case '8': | |
|
14161
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Christian Brabandt <cb@256bit.org>
parents:
13286
diff
changeset
|
2099 case '9': if ((reg_do_extmatch & REX_USE) == 0) |
|
4688
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4682
diff
changeset
|
2100 EMSG_RET_NULL(_(e_z1_not_allowed)); |
| 7 | 2101 ret = regnode(ZREF + c - '0'); |
| 2102 re_has_z = REX_USE; | |
| 2103 break; | |
| 741 | 2104 #endif |
| 7 | 2105 |
| 2106 case 's': ret = regnode(MOPEN + 0); | |
| 6203 | 2107 if (re_mult_next("\\zs") == FAIL) |
| 2108 return NULL; | |
| 7 | 2109 break; |
| 2110 | |
| 2111 case 'e': ret = regnode(MCLOSE + 0); | |
| 6203 | 2112 if (re_mult_next("\\ze") == FAIL) |
| 2113 return NULL; | |
| 7 | 2114 break; |
| 2115 | |
| 2116 default: EMSG_RET_NULL(_("E68: Invalid character after \\z")); | |
| 2117 } | |
| 2118 } | |
| 2119 break; | |
| 2120 | |
| 2121 case Magic('%'): | |
| 2122 { | |
| 2123 c = no_Magic(getchr()); | |
| 2124 switch (c) | |
| 2125 { | |
| 2126 /* () without a back reference */ | |
| 2127 case '(': | |
| 2128 if (one_exactly) | |
| 2129 EMSG_ONE_RET_NULL; | |
| 2130 ret = reg(REG_NPAREN, &flags); | |
| 2131 if (ret == NULL) | |
| 2132 return NULL; | |
| 2133 *flagp |= flags & (HASWIDTH | SPSTART | HASNL | HASLOOKBH); | |
| 2134 break; | |
| 2135 | |
| 2136 /* Catch \%^ and \%$ regardless of where they appear in the | |
| 2137 * pattern -- regardless of whether or not it makes sense. */ | |
| 2138 case '^': | |
| 2139 ret = regnode(RE_BOF); | |
| 2140 break; | |
| 2141 | |
| 2142 case '$': | |
| 2143 ret = regnode(RE_EOF); | |
| 2144 break; | |
| 2145 | |
| 2146 case '#': | |
| 2147 ret = regnode(CURSOR); | |
| 2148 break; | |
| 2149 | |
| 639 | 2150 case 'V': |
| 2151 ret = regnode(RE_VISUAL); | |
| 2152 break; | |
| 2153 | |
| 5901 | 2154 case 'C': |
| 2155 ret = regnode(RE_COMPOSING); | |
| 2156 break; | |
| 2157 | |
| 7 | 2158 /* \%[abc]: Emit as a list of branches, all ending at the last |
| 2159 * branch which matches nothing. */ | |
| 2160 case '[': | |
| 2161 if (one_exactly) /* doesn't nest */ | |
| 2162 EMSG_ONE_RET_NULL; | |
| 2163 { | |
| 2164 char_u *lastbranch; | |
| 2165 char_u *lastnode = NULL; | |
| 2166 char_u *br; | |
| 2167 | |
| 2168 ret = NULL; | |
| 2169 while ((c = getchr()) != ']') | |
| 2170 { | |
| 2171 if (c == NUL) | |
|
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changeset
|
2172 EMSG2_RET_NULL(_(e_missing_sb), |
| 7 | 2173 reg_magic == MAGIC_ALL); |
| 2174 br = regnode(BRANCH); | |
| 2175 if (ret == NULL) | |
| 2176 ret = br; | |
| 2177 else | |
| 2178 regtail(lastnode, br); | |
| 2179 | |
| 2180 ungetchr(); | |
| 2181 one_exactly = TRUE; | |
| 2182 lastnode = regatom(flagp); | |
| 2183 one_exactly = FALSE; | |
| 2184 if (lastnode == NULL) | |
| 2185 return NULL; | |
| 2186 } | |
| 2187 if (ret == NULL) | |
|
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4746
diff
changeset
|
2188 EMSG2_RET_NULL(_(e_empty_sb), |
| 7 | 2189 reg_magic == MAGIC_ALL); |
| 2190 lastbranch = regnode(BRANCH); | |
| 2191 br = regnode(NOTHING); | |
| 2192 if (ret != JUST_CALC_SIZE) | |
| 2193 { | |
| 2194 regtail(lastnode, br); | |
| 2195 regtail(lastbranch, br); | |
| 2196 /* connect all branches to the NOTHING | |
| 2197 * branch at the end */ | |
| 2198 for (br = ret; br != lastnode; ) | |
| 2199 { | |
| 2200 if (OP(br) == BRANCH) | |
| 2201 { | |
| 2202 regtail(br, lastbranch); | |
| 2203 br = OPERAND(br); | |
| 2204 } | |
| 2205 else | |
| 2206 br = regnext(br); | |
| 2207 } | |
| 2208 } | |
| 1701 | 2209 *flagp &= ~(HASWIDTH | SIMPLE); |
| 7 | 2210 break; |
| 2211 } | |
| 2212 | |
| 24 | 2213 case 'd': /* %d123 decimal */ |
| 2214 case 'o': /* %o123 octal */ | |
| 2215 case 'x': /* %xab hex 2 */ | |
| 2216 case 'u': /* %uabcd hex 4 */ | |
| 2217 case 'U': /* %U1234abcd hex 8 */ | |
| 2218 { | |
|
12752
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patch 8.0.1254: undefined left shift in gethexchrs()
Christian Brabandt <cb@256bit.org>
parents:
12674
diff
changeset
|
2219 long i; |
| 24 | 2220 |
| 2221 switch (c) | |
| 2222 { | |
| 2223 case 'd': i = getdecchrs(); break; | |
| 2224 case 'o': i = getoctchrs(); break; | |
| 2225 case 'x': i = gethexchrs(2); break; | |
| 2226 case 'u': i = gethexchrs(4); break; | |
| 2227 case 'U': i = gethexchrs(8); break; | |
| 2228 default: i = -1; break; | |
| 2229 } | |
| 2230 | |
|
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patch 8.1.0985: crash with large number in regexp
Bram Moolenaar <Bram@vim.org>
parents:
15935
diff
changeset
|
2231 if (i < 0 || i > INT_MAX) |
| 4444 | 2232 EMSG2_RET_NULL( |
| 24 | 2233 _("E678: Invalid character after %s%%[dxouU]"), |
| 2234 reg_magic == MAGIC_ALL); | |
| 714 | 2235 if (use_multibytecode(i)) |
| 2236 ret = regnode(MULTIBYTECODE); | |
| 2237 else | |
| 2238 ret = regnode(EXACTLY); | |
| 24 | 2239 if (i == 0) |
| 2240 regc(0x0a); | |
| 2241 else | |
| 2242 regmbc(i); | |
| 2243 regc(NUL); | |
| 2244 *flagp |= HASWIDTH; | |
| 2245 break; | |
| 2246 } | |
| 2247 | |
| 7 | 2248 default: |
| 639 | 2249 if (VIM_ISDIGIT(c) || c == '<' || c == '>' |
| 2250 || c == '\'') | |
| 7 | 2251 { |
| 2252 long_u n = 0; | |
| 2253 int cmp; | |
| 2254 | |
| 2255 cmp = c; | |
| 2256 if (cmp == '<' || cmp == '>') | |
| 2257 c = getchr(); | |
| 2258 while (VIM_ISDIGIT(c)) | |
| 2259 { | |
| 2260 n = n * 10 + (c - '0'); | |
| 2261 c = getchr(); | |
| 2262 } | |
| 639 | 2263 if (c == '\'' && n == 0) |
| 2264 { | |
| 2265 /* "\%'m", "\%<'m" and "\%>'m": Mark */ | |
| 2266 c = getchr(); | |
| 2267 ret = regnode(RE_MARK); | |
| 2268 if (ret == JUST_CALC_SIZE) | |
| 2269 regsize += 2; | |
| 2270 else | |
| 2271 { | |
| 2272 *regcode++ = c; | |
| 2273 *regcode++ = cmp; | |
| 2274 } | |
| 2275 break; | |
| 2276 } | |
| 2277 else if (c == 'l' || c == 'c' || c == 'v') | |
| 7 | 2278 { |
| 2279 if (c == 'l') | |
|
8021
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Christian Brabandt <cb@256bit.org>
parents:
7833
diff
changeset
|
2280 { |
| 7 | 2281 ret = regnode(RE_LNUM); |
|
8021
b6b4f354df23
commit https://github.com/vim/vim/commit/7c29f387819b5817b003d2ba73e2b5cf3cb3d0dd
Christian Brabandt <cb@256bit.org>
parents:
7833
diff
changeset
|
2282 if (save_prev_at_start) |
|
b6b4f354df23
commit https://github.com/vim/vim/commit/7c29f387819b5817b003d2ba73e2b5cf3cb3d0dd
Christian Brabandt <cb@256bit.org>
parents:
7833
diff
changeset
|
2283 at_start = TRUE; |
|
b6b4f354df23
commit https://github.com/vim/vim/commit/7c29f387819b5817b003d2ba73e2b5cf3cb3d0dd
Christian Brabandt <cb@256bit.org>
parents:
7833
diff
changeset
|
2284 } |
| 7 | 2285 else if (c == 'c') |
| 2286 ret = regnode(RE_COL); | |
| 2287 else | |
| 2288 ret = regnode(RE_VCOL); | |
| 2289 if (ret == JUST_CALC_SIZE) | |
| 2290 regsize += 5; | |
| 2291 else | |
| 2292 { | |
| 2293 /* put the number and the optional | |
| 2294 * comparator after the opcode */ | |
| 2295 regcode = re_put_long(regcode, n); | |
| 2296 *regcode++ = cmp; | |
| 2297 } | |
| 2298 break; | |
| 2299 } | |
| 2300 } | |
| 2301 | |
| 4444 | 2302 EMSG2_RET_NULL(_("E71: Invalid character after %s%%"), |
| 7 | 2303 reg_magic == MAGIC_ALL); |
| 2304 } | |
| 2305 } | |
| 2306 break; | |
| 2307 | |
| 2308 case Magic('['): | |
| 2309 collection: | |
| 2310 { | |
| 2311 char_u *lp; | |
| 2312 | |
| 2313 /* | |
| 2314 * If there is no matching ']', we assume the '[' is a normal | |
| 2315 * character. This makes 'incsearch' and ":help [" work. | |
| 2316 */ | |
| 2317 lp = skip_anyof(regparse); | |
| 2318 if (*lp == ']') /* there is a matching ']' */ | |
| 2319 { | |
| 2320 int startc = -1; /* > 0 when next '-' is a range */ | |
| 2321 int endc; | |
| 2322 | |
| 2323 /* | |
| 2324 * In a character class, different parsing rules apply. | |
| 2325 * Not even \ is special anymore, nothing is. | |
| 2326 */ | |
| 2327 if (*regparse == '^') /* Complement of range. */ | |
| 2328 { | |
| 2329 ret = regnode(ANYBUT + extra); | |
| 2330 regparse++; | |
| 2331 } | |
| 2332 else | |
| 2333 ret = regnode(ANYOF + extra); | |
| 2334 | |
| 2335 /* At the start ']' and '-' mean the literal character. */ | |
| 2336 if (*regparse == ']' || *regparse == '-') | |
| 167 | 2337 { |
| 2338 startc = *regparse; | |
| 7 | 2339 regc(*regparse++); |
| 167 | 2340 } |
| 7 | 2341 |
| 2342 while (*regparse != NUL && *regparse != ']') | |
| 2343 { | |
| 2344 if (*regparse == '-') | |
| 2345 { | |
| 2346 ++regparse; | |
| 2347 /* The '-' is not used for a range at the end and | |
| 2348 * after or before a '\n'. */ | |
| 2349 if (*regparse == ']' || *regparse == NUL | |
| 2350 || startc == -1 | |
| 2351 || (regparse[0] == '\\' && regparse[1] == 'n')) | |
| 2352 { | |
| 2353 regc('-'); | |
| 2354 startc = '-'; /* [--x] is a range */ | |
| 2355 } | |
| 2356 else | |
| 2357 { | |
| 167 | 2358 /* Also accept "a-[.z.]" */ |
| 2359 endc = 0; | |
| 2360 if (*regparse == '[') | |
| 2361 endc = get_coll_element(®parse); | |
| 2362 if (endc == 0) | |
| 2363 { | |
| 2364 if (has_mbyte) | |
| 2365 endc = mb_ptr2char_adv(®parse); | |
| 2366 else | |
| 2367 endc = *regparse++; | |
| 2368 } | |
| 24 | 2369 |
| 2370 /* Handle \o40, \x20 and \u20AC style sequences */ | |
|
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diff
changeset
|
2371 if (endc == '\\' && !reg_cpo_lit && !reg_cpo_bsl) |
| 24 | 2372 endc = coll_get_char(); |
| 2373 | |
| 7 | 2374 if (startc > endc) |
|
11480
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parents:
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diff
changeset
|
2375 EMSG_RET_NULL(_(e_reverse_range)); |
| 7 | 2376 if (has_mbyte && ((*mb_char2len)(startc) > 1 |
| 2377 || (*mb_char2len)(endc) > 1)) | |
| 2378 { | |
|
11480
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parents:
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diff
changeset
|
2379 /* Limit to a range of 256 chars. */ |
| 7 | 2380 if (endc > startc + 256) |
|
11480
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Christian Brabandt <cb@256bit.org>
parents:
11269
diff
changeset
|
2381 EMSG_RET_NULL(_(e_large_class)); |
| 7 | 2382 while (++startc <= endc) |
| 2383 regmbc(startc); | |
| 2384 } | |
| 2385 else | |
| 2386 { | |
| 2387 #ifdef EBCDIC | |
| 2388 int alpha_only = FALSE; | |
| 2389 | |
| 2390 /* for alphabetical range skip the gaps | |
| 2391 * 'i'-'j', 'r'-'s', 'I'-'J' and 'R'-'S'. */ | |
| 2392 if (isalpha(startc) && isalpha(endc)) | |
| 2393 alpha_only = TRUE; | |
| 2394 #endif | |
| 2395 while (++startc <= endc) | |
| 2396 #ifdef EBCDIC | |
| 2397 if (!alpha_only || isalpha(startc)) | |
| 2398 #endif | |
| 2399 regc(startc); | |
| 2400 } | |
| 2401 startc = -1; | |
| 2402 } | |
| 2403 } | |
| 2404 /* | |
| 2405 * Only "\]", "\^", "\]" and "\\" are special in Vi. Vim | |
| 2406 * accepts "\t", "\e", etc., but only when the 'l' flag in | |
| 2407 * 'cpoptions' is not included. | |
| 167 | 2408 * Posix doesn't recognize backslash at all. |
| 7 | 2409 */ |
| 2410 else if (*regparse == '\\' | |
|
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parents:
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diff
changeset
|
2411 && !reg_cpo_bsl |
| 7 | 2412 && (vim_strchr(REGEXP_INRANGE, regparse[1]) != NULL |
|
4744
a62695305e03
updated for version 7.3.1119
Bram Moolenaar <bram@vim.org>
parents:
4732
diff
changeset
|
2413 || (!reg_cpo_lit |
| 7 | 2414 && vim_strchr(REGEXP_ABBR, |
| 2415 regparse[1]) != NULL))) | |
| 2416 { | |
| 2417 regparse++; | |
| 2418 if (*regparse == 'n') | |
| 2419 { | |
| 2420 /* '\n' in range: also match NL */ | |
| 2421 if (ret != JUST_CALC_SIZE) | |
| 2422 { | |
| 4084 | 2423 /* Using \n inside [^] does not change what |
| 2424 * matches. "[^\n]" is the same as ".". */ | |
| 2425 if (*ret == ANYOF) | |
| 2426 { | |
| 7 | 2427 *ret = ANYOF + ADD_NL; |
| 4084 | 2428 *flagp |= HASNL; |
| 2429 } | |
| 7 | 2430 /* else: must have had a \n already */ |
| 2431 } | |
| 2432 regparse++; | |
| 2433 startc = -1; | |
| 2434 } | |
| 24 | 2435 else if (*regparse == 'd' |
| 2436 || *regparse == 'o' | |
| 2437 || *regparse == 'x' | |
| 2438 || *regparse == 'u' | |
| 2439 || *regparse == 'U') | |
| 2440 { | |
| 2441 startc = coll_get_char(); | |
| 2442 if (startc == 0) | |
| 2443 regc(0x0a); | |
| 2444 else | |
| 2445 regmbc(startc); | |
| 2446 } | |
| 7 | 2447 else |
| 2448 { | |
| 2449 startc = backslash_trans(*regparse++); | |
| 2450 regc(startc); | |
| 2451 } | |
| 2452 } | |
| 2453 else if (*regparse == '[') | |
| 2454 { | |
| 2455 int c_class; | |
| 2456 int cu; | |
| 2457 | |
| 167 | 2458 c_class = get_char_class(®parse); |
| 7 | 2459 startc = -1; |
| 2460 /* Characters assumed to be 8 bits! */ | |
| 2461 switch (c_class) | |
| 2462 { | |
| 2463 case CLASS_NONE: | |
| 167 | 2464 c_class = get_equi_class(®parse); |
| 2465 if (c_class != 0) | |
| 2466 { | |
| 2467 /* produce equivalence class */ | |
| 2468 reg_equi_class(c_class); | |
| 2469 } | |
| 2470 else if ((c_class = | |
| 2471 get_coll_element(®parse)) != 0) | |
| 2472 { | |
| 2473 /* produce a collating element */ | |
| 2474 regmbc(c_class); | |
| 2475 } | |
| 2476 else | |
| 2477 { | |
| 2478 /* literal '[', allow [[-x] as a range */ | |
| 2479 startc = *regparse++; | |
| 2480 regc(startc); | |
| 2481 } | |
| 7 | 2482 break; |
| 2483 case CLASS_ALNUM: | |
|
9015
42b228c8701b
commit https://github.com/vim/vim/commit/e8aee7dcf9b12becff86e8ce1783a86801c5f9f6
Christian Brabandt <cb@256bit.org>
parents:
8995
diff
changeset
|
2484 for (cu = 1; cu < 128; cu++) |
| 7 | 2485 if (isalnum(cu)) |
|
8995
3cf6704d6efc
commit https://github.com/vim/vim/commit/af98a49dd0ef1661b4998f118151fddbf6e4df75
Christian Brabandt <cb@256bit.org>
parents:
8863
diff
changeset
|
2486 regmbc(cu); |
| 7 | 2487 break; |
| 2488 case CLASS_ALPHA: | |
|
9015
42b228c8701b
commit https://github.com/vim/vim/commit/e8aee7dcf9b12becff86e8ce1783a86801c5f9f6
Christian Brabandt <cb@256bit.org>
parents:
8995
diff
changeset
|
2489 for (cu = 1; cu < 128; cu++) |
| 7 | 2490 if (isalpha(cu)) |
|
8995
3cf6704d6efc
commit https://github.com/vim/vim/commit/af98a49dd0ef1661b4998f118151fddbf6e4df75
Christian Brabandt <cb@256bit.org>
parents:
8863
diff
changeset
|
2491 regmbc(cu); |
| 7 | 2492 break; |
| 2493 case CLASS_BLANK: | |
| 2494 regc(' '); | |
| 2495 regc('\t'); | |
| 2496 break; | |
| 2497 case CLASS_CNTRL: | |
|
11267
588de97b40e7
patch 8.0.0519: character classes are not well tested
Christian Brabandt <cb@256bit.org>
parents:
11129
diff
changeset
|
2498 for (cu = 1; cu <= 127; cu++) |
| 7 | 2499 if (iscntrl(cu)) |
|
8995
3cf6704d6efc
commit https://github.com/vim/vim/commit/af98a49dd0ef1661b4998f118151fddbf6e4df75
Christian Brabandt <cb@256bit.org>
parents:
8863
diff
changeset
|
2500 regmbc(cu); |
| 7 | 2501 break; |
| 2502 case CLASS_DIGIT: | |
|
11267
588de97b40e7
patch 8.0.0519: character classes are not well tested
Christian Brabandt <cb@256bit.org>
parents:
11129
diff
changeset
|
2503 for (cu = 1; cu <= 127; cu++) |
| 7 | 2504 if (VIM_ISDIGIT(cu)) |
|
8995
3cf6704d6efc
commit https://github.com/vim/vim/commit/af98a49dd0ef1661b4998f118151fddbf6e4df75
Christian Brabandt <cb@256bit.org>
parents:
8863
diff
changeset
|
2505 regmbc(cu); |
| 7 | 2506 break; |
| 2507 case CLASS_GRAPH: | |
|
11267
588de97b40e7
patch 8.0.0519: character classes are not well tested
Christian Brabandt <cb@256bit.org>
parents:
11129
diff
changeset
|
2508 for (cu = 1; cu <= 127; cu++) |
| 7 | 2509 if (isgraph(cu)) |
|
8995
3cf6704d6efc
commit https://github.com/vim/vim/commit/af98a49dd0ef1661b4998f118151fddbf6e4df75
Christian Brabandt <cb@256bit.org>
parents:
8863
diff
changeset
|
2510 regmbc(cu); |
| 7 | 2511 break; |
| 2512 case CLASS_LOWER: | |
| 2513 for (cu = 1; cu <= 255; cu++) | |
|
9015
42b228c8701b
commit https://github.com/vim/vim/commit/e8aee7dcf9b12becff86e8ce1783a86801c5f9f6
Christian Brabandt <cb@256bit.org>
parents:
8995
diff
changeset
|
2514 if (MB_ISLOWER(cu) && cu != 170 |
|
42b228c8701b
commit https://github.com/vim/vim/commit/e8aee7dcf9b12becff86e8ce1783a86801c5f9f6
Christian Brabandt <cb@256bit.org>
parents:
8995
diff
changeset
|
2515 && cu != 186) |
|
8995
3cf6704d6efc
commit https://github.com/vim/vim/commit/af98a49dd0ef1661b4998f118151fddbf6e4df75
Christian Brabandt <cb@256bit.org>
parents:
8863
diff
changeset
|
2516 regmbc(cu); |
| 7 | 2517 break; |
| 2518 case CLASS_PRINT: | |
| 2519 for (cu = 1; cu <= 255; cu++) | |
| 2520 if (vim_isprintc(cu)) | |
|
8995
3cf6704d6efc
commit https://github.com/vim/vim/commit/af98a49dd0ef1661b4998f118151fddbf6e4df75
Christian Brabandt <cb@256bit.org>
parents:
8863
diff
changeset
|
2521 regmbc(cu); |
| 7 | 2522 break; |
| 2523 case CLASS_PUNCT: | |
|
9015
42b228c8701b
commit https://github.com/vim/vim/commit/e8aee7dcf9b12becff86e8ce1783a86801c5f9f6
Christian Brabandt <cb@256bit.org>
parents:
8995
diff
changeset
|
2524 for (cu = 1; cu < 128; cu++) |
| 7 | 2525 if (ispunct(cu)) |
|
8995
3cf6704d6efc
commit https://github.com/vim/vim/commit/af98a49dd0ef1661b4998f118151fddbf6e4df75
Christian Brabandt <cb@256bit.org>
parents:
8863
diff
changeset
|
2526 regmbc(cu); |
| 7 | 2527 break; |
| 2528 case CLASS_SPACE: | |
| 2529 for (cu = 9; cu <= 13; cu++) | |
| 2530 regc(cu); | |
| 2531 regc(' '); | |
| 2532 break; | |
| 2533 case CLASS_UPPER: | |
| 2534 for (cu = 1; cu <= 255; cu++) | |
| 1347 | 2535 if (MB_ISUPPER(cu)) |
|
8995
3cf6704d6efc
commit https://github.com/vim/vim/commit/af98a49dd0ef1661b4998f118151fddbf6e4df75
Christian Brabandt <cb@256bit.org>
parents:
8863
diff
changeset
|
2536 regmbc(cu); |
| 7 | 2537 break; |
| 2538 case CLASS_XDIGIT: | |
| 2539 for (cu = 1; cu <= 255; cu++) | |
| 2540 if (vim_isxdigit(cu)) | |
|
8995
3cf6704d6efc
commit https://github.com/vim/vim/commit/af98a49dd0ef1661b4998f118151fddbf6e4df75
Christian Brabandt <cb@256bit.org>
parents:
8863
diff
changeset
|
2541 regmbc(cu); |
| 7 | 2542 break; |
| 2543 case CLASS_TAB: | |
| 2544 regc('\t'); | |
| 2545 break; | |
| 2546 case CLASS_RETURN: | |
| 2547 regc('\r'); | |
| 2548 break; | |
| 2549 case CLASS_BACKSPACE: | |
| 2550 regc('\b'); | |
| 2551 break; | |
| 2552 case CLASS_ESCAPE: | |
| 2553 regc('\033'); | |
| 2554 break; | |
|
15709
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patch 8.1.0862: no verbose version of character classes
Bram Moolenaar <Bram@vim.org>
parents:
15603
diff
changeset
|
2555 case CLASS_IDENT: |
|
2e2f07561f4b
patch 8.1.0862: no verbose version of character classes
Bram Moolenaar <Bram@vim.org>
parents:
15603
diff
changeset
|
2556 for (cu = 1; cu <= 255; cu++) |
|
2e2f07561f4b
patch 8.1.0862: no verbose version of character classes
Bram Moolenaar <Bram@vim.org>
parents:
15603
diff
changeset
|
2557 if (vim_isIDc(cu)) |
|
2e2f07561f4b
patch 8.1.0862: no verbose version of character classes
Bram Moolenaar <Bram@vim.org>
parents:
15603
diff
changeset
|
2558 regmbc(cu); |
|
2e2f07561f4b
patch 8.1.0862: no verbose version of character classes
Bram Moolenaar <Bram@vim.org>
parents:
15603
diff
changeset
|
2559 break; |
|
2e2f07561f4b
patch 8.1.0862: no verbose version of character classes
Bram Moolenaar <Bram@vim.org>
parents:
15603
diff
changeset
|
2560 case CLASS_KEYWORD: |
|
2e2f07561f4b
patch 8.1.0862: no verbose version of character classes
Bram Moolenaar <Bram@vim.org>
parents:
15603
diff
changeset
|
2561 for (cu = 1; cu <= 255; cu++) |
|
2e2f07561f4b
patch 8.1.0862: no verbose version of character classes
Bram Moolenaar <Bram@vim.org>
parents:
15603
diff
changeset
|
2562 if (reg_iswordc(cu)) |
|
2e2f07561f4b
patch 8.1.0862: no verbose version of character classes
Bram Moolenaar <Bram@vim.org>
parents:
15603
diff
changeset
|
2563 regmbc(cu); |
|
2e2f07561f4b
patch 8.1.0862: no verbose version of character classes
Bram Moolenaar <Bram@vim.org>
parents:
15603
diff
changeset
|
2564 break; |
|
2e2f07561f4b
patch 8.1.0862: no verbose version of character classes
Bram Moolenaar <Bram@vim.org>
parents:
15603
diff
changeset
|
2565 case CLASS_FNAME: |
|
2e2f07561f4b
patch 8.1.0862: no verbose version of character classes
Bram Moolenaar <Bram@vim.org>
parents:
15603
diff
changeset
|
2566 for (cu = 1; cu <= 255; cu++) |
|
2e2f07561f4b
patch 8.1.0862: no verbose version of character classes
Bram Moolenaar <Bram@vim.org>
parents:
15603
diff
changeset
|
2567 if (vim_isfilec(cu)) |
|
2e2f07561f4b
patch 8.1.0862: no verbose version of character classes
Bram Moolenaar <Bram@vim.org>
parents:
15603
diff
changeset
|
2568 regmbc(cu); |
|
2e2f07561f4b
patch 8.1.0862: no verbose version of character classes
Bram Moolenaar <Bram@vim.org>
parents:
15603
diff
changeset
|
2569 break; |
| 7 | 2570 } |
| 2571 } | |
| 2572 else | |
| 2573 { | |
| 2574 if (has_mbyte) | |
| 2575 { | |
| 2576 int len; | |
| 2577 | |
| 2578 /* produce a multibyte character, including any | |
| 2579 * following composing characters */ | |
| 2580 startc = mb_ptr2char(regparse); | |
| 474 | 2581 len = (*mb_ptr2len)(regparse); |
| 7 | 2582 if (enc_utf8 && utf_char2len(startc) != len) |
| 2583 startc = -1; /* composing chars */ | |
| 2584 while (--len >= 0) | |
| 2585 regc(*regparse++); | |
| 2586 } | |
| 2587 else | |
| 2588 { | |
| 2589 startc = *regparse++; | |
| 2590 regc(startc); | |
| 2591 } | |
| 2592 } | |
| 2593 } | |
| 2594 regc(NUL); | |
| 2595 prevchr_len = 1; /* last char was the ']' */ | |
| 2596 if (*regparse != ']') | |
| 2597 EMSG_RET_NULL(_(e_toomsbra)); /* Cannot happen? */ | |
| 2598 skipchr(); /* let's be friends with the lexer again */ | |
| 2599 *flagp |= HASWIDTH | SIMPLE; | |
| 2600 break; | |
| 2601 } | |
| 481 | 2602 else if (reg_strict) |
| 4444 | 2603 EMSG2_RET_NULL(_(e_missingbracket), reg_magic > MAGIC_OFF); |
| 7 | 2604 } |
| 2605 /* FALLTHROUGH */ | |
| 2606 | |
| 2607 default: | |
| 2608 { | |
| 2609 int len; | |
| 2610 | |
| 2611 /* A multi-byte character is handled as a separate atom if it's | |
| 714 | 2612 * before a multi and when it's a composing char. */ |
| 2613 if (use_multibytecode(c)) | |
| 7 | 2614 { |
| 714 | 2615 do_multibyte: |
| 7 | 2616 ret = regnode(MULTIBYTECODE); |
| 2617 regmbc(c); | |
| 2618 *flagp |= HASWIDTH | SIMPLE; | |
| 2619 break; | |
| 2620 } | |
| 2621 | |
| 2622 ret = regnode(EXACTLY); | |
| 2623 | |
| 2624 /* | |
| 2625 * Append characters as long as: | |
| 2626 * - there is no following multi, we then need the character in | |
| 2627 * front of it as a single character operand | |
| 2628 * - not running into a Magic character | |
| 2629 * - "one_exactly" is not set | |
| 2630 * But always emit at least one character. Might be a Multi, | |
| 2631 * e.g., a "[" without matching "]". | |
| 2632 */ | |
| 2633 for (len = 0; c != NUL && (len == 0 | |
| 2634 || (re_multi_type(peekchr()) == NOT_MULTI | |
| 2635 && !one_exactly | |
| 2636 && !is_Magic(c))); ++len) | |
| 2637 { | |
| 2638 c = no_Magic(c); | |
| 2639 if (has_mbyte) | |
| 2640 { | |
| 2641 regmbc(c); | |
| 2642 if (enc_utf8) | |
| 2643 { | |
| 2644 int l; | |
| 2645 | |
| 714 | 2646 /* Need to get composing character too. */ |
| 7 | 2647 for (;;) |
| 2648 { | |
| 714 | 2649 l = utf_ptr2len(regparse); |
| 2650 if (!UTF_COMPOSINGLIKE(regparse, regparse + l)) | |
| 7 | 2651 break; |
| 714 | 2652 regmbc(utf_ptr2char(regparse)); |
| 2653 skipchr(); | |
| 7 | 2654 } |
| 2655 } | |
| 2656 } | |
| 2657 else | |
| 2658 regc(c); | |
| 2659 c = getchr(); | |
| 2660 } | |
| 2661 ungetchr(); | |
| 2662 | |
| 2663 regc(NUL); | |
| 2664 *flagp |= HASWIDTH; | |
| 2665 if (len == 1) | |
| 2666 *flagp |= SIMPLE; | |
| 2667 } | |
| 2668 break; | |
| 2669 } | |
| 2670 | |
| 2671 return ret; | |
| 2672 } | |
| 2673 | |
| 714 | 2674 /* |
| 2675 * Return TRUE if MULTIBYTECODE should be used instead of EXACTLY for | |
| 2676 * character "c". | |
| 2677 */ | |
| 2678 static int | |
|
7833
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Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
2679 use_multibytecode(int c) |
| 714 | 2680 { |
| 2681 return has_mbyte && (*mb_char2len)(c) > 1 | |
| 2682 && (re_multi_type(peekchr()) != NOT_MULTI | |
| 2683 || (enc_utf8 && utf_iscomposing(c))); | |
| 2684 } | |
| 2685 | |
| 7 | 2686 /* |
| 4444 | 2687 * Emit a node. |
| 7 | 2688 * Return pointer to generated code. |
| 2689 */ | |
| 2690 static char_u * | |
|
7833
c079097365f3
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Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
2691 regnode(int op) |
| 7 | 2692 { |
| 2693 char_u *ret; | |
| 2694 | |
| 2695 ret = regcode; | |
| 2696 if (ret == JUST_CALC_SIZE) | |
| 2697 regsize += 3; | |
| 2698 else | |
| 2699 { | |
| 2700 *regcode++ = op; | |
| 2701 *regcode++ = NUL; /* Null "next" pointer. */ | |
| 2702 *regcode++ = NUL; | |
| 2703 } | |
| 2704 return ret; | |
| 2705 } | |
| 2706 | |
| 2707 /* | |
| 2708 * Emit (if appropriate) a byte of code | |
| 2709 */ | |
| 2710 static void | |
|
7833
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Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
2711 regc(int b) |
| 7 | 2712 { |
| 2713 if (regcode == JUST_CALC_SIZE) | |
| 2714 regsize++; | |
| 2715 else | |
| 2716 *regcode++ = b; | |
| 2717 } | |
| 2718 | |
| 2719 /* | |
| 2720 * Emit (if appropriate) a multi-byte character of code | |
| 2721 */ | |
| 2722 static void | |
|
7833
c079097365f3
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Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
2723 regmbc(int c) |
| 7 | 2724 { |
| 2974 | 2725 if (!has_mbyte && c > 0xff) |
| 2726 return; | |
| 7 | 2727 if (regcode == JUST_CALC_SIZE) |
| 2728 regsize += (*mb_char2len)(c); | |
| 2729 else | |
| 2730 regcode += (*mb_char2bytes)(c, regcode); | |
| 2731 } | |
| 2732 | |
| 2733 /* | |
| 4444 | 2734 * Insert an operator in front of already-emitted operand |
| 7 | 2735 * |
| 2736 * Means relocating the operand. | |
| 2737 */ | |
| 2738 static void | |
|
7833
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
2739 reginsert(int op, char_u *opnd) |
| 7 | 2740 { |
| 2741 char_u *src; | |
| 2742 char_u *dst; | |
| 2743 char_u *place; | |
| 2744 | |
| 2745 if (regcode == JUST_CALC_SIZE) | |
| 2746 { | |
| 2747 regsize += 3; | |
| 2748 return; | |
| 2749 } | |
| 2750 src = regcode; | |
| 2751 regcode += 3; | |
| 2752 dst = regcode; | |
| 2753 while (src > opnd) | |
| 2754 *--dst = *--src; | |
| 2755 | |
| 2756 place = opnd; /* Op node, where operand used to be. */ | |
| 2757 *place++ = op; | |
| 2758 *place++ = NUL; | |
| 2759 *place = NUL; | |
| 2760 } | |
| 2761 | |
| 2762 /* | |
| 4444 | 2763 * Insert an operator in front of already-emitted operand. |
|
4579
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Bram Moolenaar <bram@vim.org>
parents:
4505
diff
changeset
|
2764 * Add a number to the operator. |
|
7a2be4a39423
updated for version 7.3.1037
Bram Moolenaar <bram@vim.org>
parents:
4505
diff
changeset
|
2765 */ |
|
7a2be4a39423
updated for version 7.3.1037
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
2766 static void |
|
7833
c079097365f3
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Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
2767 reginsert_nr(int op, long val, char_u *opnd) |
|
4579
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parents:
4505
diff
changeset
|
2768 { |
|
7a2be4a39423
updated for version 7.3.1037
Bram Moolenaar <bram@vim.org>
parents:
4505
diff
changeset
|
2769 char_u *src; |
|
7a2be4a39423
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Bram Moolenaar <bram@vim.org>
parents:
4505
diff
changeset
|
2770 char_u *dst; |
|
7a2be4a39423
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Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
2771 char_u *place; |
|
7a2be4a39423
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Bram Moolenaar <bram@vim.org>
parents:
4505
diff
changeset
|
2772 |
|
7a2be4a39423
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diff
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|
2773 if (regcode == JUST_CALC_SIZE) |
|
7a2be4a39423
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diff
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|
2774 { |
|
7a2be4a39423
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diff
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|
2775 regsize += 7; |
|
7a2be4a39423
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diff
changeset
|
2776 return; |
|
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|
2777 } |
|
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|
2778 src = regcode; |
|
7a2be4a39423
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|
2779 regcode += 7; |
|
7a2be4a39423
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|
2780 dst = regcode; |
|
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|
2781 while (src > opnd) |
|
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|
2782 *--dst = *--src; |
|
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|
2783 |
|
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|
2784 place = opnd; /* Op node, where operand used to be. */ |
|
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|
2785 *place++ = op; |
|
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|
2786 *place++ = NUL; |
|
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|
2787 *place++ = NUL; |
|
16054
78faa25f9698
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changeset
|
2788 re_put_long(place, (long_u)val); |
|
4579
7a2be4a39423
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|
2789 } |
|
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|
2790 |
|
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|
2791 /* |
|
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|
2792 * Insert an operator in front of already-emitted operand. |
| 7 | 2793 * The operator has the given limit values as operands. Also set next pointer. |
| 2794 * | |
| 2795 * Means relocating the operand. | |
| 2796 */ | |
| 2797 static void | |
|
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|
2798 reginsert_limits( |
|
c079097365f3
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Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
2799 int op, |
|
c079097365f3
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Christian Brabandt <cb@256bit.org>
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diff
changeset
|
2800 long minval, |
|
c079097365f3
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Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
2801 long maxval, |
|
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
2802 char_u *opnd) |
| 7 | 2803 { |
| 2804 char_u *src; | |
| 2805 char_u *dst; | |
| 2806 char_u *place; | |
| 2807 | |
| 2808 if (regcode == JUST_CALC_SIZE) | |
| 2809 { | |
| 2810 regsize += 11; | |
| 2811 return; | |
| 2812 } | |
| 2813 src = regcode; | |
| 2814 regcode += 11; | |
| 2815 dst = regcode; | |
| 2816 while (src > opnd) | |
| 2817 *--dst = *--src; | |
| 2818 | |
| 2819 place = opnd; /* Op node, where operand used to be. */ | |
| 2820 *place++ = op; | |
| 2821 *place++ = NUL; | |
| 2822 *place++ = NUL; | |
| 2823 place = re_put_long(place, (long_u)minval); | |
| 2824 place = re_put_long(place, (long_u)maxval); | |
| 2825 regtail(opnd, place); | |
| 2826 } | |
| 2827 | |
| 2828 /* | |
| 2829 * Write a long as four bytes at "p" and return pointer to the next char. | |
| 2830 */ | |
| 2831 static char_u * | |
|
7833
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Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
2832 re_put_long(char_u *p, long_u val) |
| 7 | 2833 { |
| 2834 *p++ = (char_u) ((val >> 24) & 0377); | |
| 2835 *p++ = (char_u) ((val >> 16) & 0377); | |
| 2836 *p++ = (char_u) ((val >> 8) & 0377); | |
| 2837 *p++ = (char_u) (val & 0377); | |
| 2838 return p; | |
| 2839 } | |
| 2840 | |
| 2841 /* | |
| 4444 | 2842 * Set the next-pointer at the end of a node chain. |
| 7 | 2843 */ |
| 2844 static void | |
|
7833
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Christian Brabandt <cb@256bit.org>
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7807
diff
changeset
|
2845 regtail(char_u *p, char_u *val) |
| 7 | 2846 { |
| 2847 char_u *scan; | |
| 2848 char_u *temp; | |
| 2849 int offset; | |
| 2850 | |
| 2851 if (p == JUST_CALC_SIZE) | |
| 2852 return; | |
| 2853 | |
| 2854 /* Find last node. */ | |
| 2855 scan = p; | |
| 2856 for (;;) | |
| 2857 { | |
| 2858 temp = regnext(scan); | |
| 2859 if (temp == NULL) | |
| 2860 break; | |
| 2861 scan = temp; | |
| 2862 } | |
| 2863 | |
| 233 | 2864 if (OP(scan) == BACK) |
| 7 | 2865 offset = (int)(scan - val); |
| 2866 else | |
| 2867 offset = (int)(val - scan); | |
| 2010 | 2868 /* When the offset uses more than 16 bits it can no longer fit in the two |
| 2974 | 2869 * bytes available. Use a global flag to avoid having to check return |
| 2010 | 2870 * values in too many places. */ |
| 2871 if (offset > 0xffff) | |
| 2872 reg_toolong = TRUE; | |
| 2873 else | |
| 2874 { | |
| 2875 *(scan + 1) = (char_u) (((unsigned)offset >> 8) & 0377); | |
| 2876 *(scan + 2) = (char_u) (offset & 0377); | |
| 2877 } | |
| 7 | 2878 } |
| 2879 | |
| 2880 /* | |
| 4444 | 2881 * Like regtail, on item after a BRANCH; nop if none. |
| 7 | 2882 */ |
| 2883 static void | |
|
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diff
changeset
|
2884 regoptail(char_u *p, char_u *val) |
| 7 | 2885 { |
| 2886 /* When op is neither BRANCH nor BRACE_COMPLEX0-9, it is "operandless" */ | |
| 2887 if (p == NULL || p == JUST_CALC_SIZE | |
| 2888 || (OP(p) != BRANCH | |
| 2889 && (OP(p) < BRACE_COMPLEX || OP(p) > BRACE_COMPLEX + 9))) | |
| 2890 return; | |
| 2891 regtail(OPERAND(p), val); | |
| 2892 } | |
| 2893 | |
| 2894 /* | |
| 4444 | 2895 * Functions for getting characters from the regexp input. |
| 7 | 2896 */ |
| 4444 | 2897 /* |
| 2898 * Start parsing at "str". | |
| 2899 */ | |
| 7 | 2900 static void |
|
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diff
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|
2901 initchr(char_u *str) |
| 7 | 2902 { |
| 2903 regparse = str; | |
| 2904 prevchr_len = 0; | |
| 2905 curchr = prevprevchr = prevchr = nextchr = -1; | |
| 2906 at_start = TRUE; | |
| 2907 prev_at_start = FALSE; | |
| 2908 } | |
| 2909 | |
| 4444 | 2910 /* |
|
4679
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diff
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|
2911 * Save the current parse state, so that it can be restored and parsing |
|
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diff
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|
2912 * starts in the same state again. |
|
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|
2913 */ |
|
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|
2914 static void |
|
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diff
changeset
|
2915 save_parse_state(parse_state_T *ps) |
|
4679
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|
2916 { |
|
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|
2917 ps->regparse = regparse; |
|
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diff
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|
2918 ps->prevchr_len = prevchr_len; |
|
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|
2919 ps->curchr = curchr; |
|
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|
2920 ps->prevchr = prevchr; |
|
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diff
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|
2921 ps->prevprevchr = prevprevchr; |
|
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|
2922 ps->nextchr = nextchr; |
|
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|
2923 ps->at_start = at_start; |
|
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|
2924 ps->prev_at_start = prev_at_start; |
|
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|
2925 ps->regnpar = regnpar; |
|
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|
2926 } |
|
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|
2927 |
|
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|
2928 /* |
|
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|
2929 * Restore a previously saved parse state. |
|
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|
2930 */ |
|
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|
2931 static void |
|
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7807
diff
changeset
|
2932 restore_parse_state(parse_state_T *ps) |
|
4679
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|
2933 { |
|
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|
2934 regparse = ps->regparse; |
|
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|
2935 prevchr_len = ps->prevchr_len; |
|
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|
2936 curchr = ps->curchr; |
|
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diff
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|
2937 prevchr = ps->prevchr; |
|
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diff
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|
2938 prevprevchr = ps->prevprevchr; |
|
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|
2939 nextchr = ps->nextchr; |
|
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|
2940 at_start = ps->at_start; |
|
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|
2941 prev_at_start = ps->prev_at_start; |
|
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|
2942 regnpar = ps->regnpar; |
|
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|
2943 } |
|
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|
2944 |
|
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|
2945 |
|
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|
2946 /* |
| 4444 | 2947 * Get the next character without advancing. |
| 2948 */ | |
| 7 | 2949 static int |
|
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diff
changeset
|
2950 peekchr(void) |
| 7 | 2951 { |
| 167 | 2952 static int after_slash = FALSE; |
| 2953 | |
| 7 | 2954 if (curchr == -1) |
| 2955 { | |
| 2956 switch (curchr = regparse[0]) | |
| 2957 { | |
| 2958 case '.': | |
| 2959 case '[': | |
| 2960 case '~': | |
| 2961 /* magic when 'magic' is on */ | |
| 2962 if (reg_magic >= MAGIC_ON) | |
| 2963 curchr = Magic(curchr); | |
| 2964 break; | |
| 2965 case '(': | |
| 2966 case ')': | |
| 2967 case '{': | |
| 2968 case '%': | |
| 2969 case '+': | |
| 2970 case '=': | |
| 2971 case '?': | |
| 2972 case '@': | |
| 2973 case '!': | |
| 2974 case '&': | |
| 2975 case '|': | |
| 2976 case '<': | |
| 2977 case '>': | |
| 2978 case '#': /* future ext. */ | |
| 2979 case '"': /* future ext. */ | |
| 2980 case '\'': /* future ext. */ | |
| 2981 case ',': /* future ext. */ | |
| 2982 case '-': /* future ext. */ | |
| 2983 case ':': /* future ext. */ | |
| 2984 case ';': /* future ext. */ | |
| 2985 case '`': /* future ext. */ | |
| 2986 case '/': /* Can't be used in / command */ | |
| 2987 /* magic only after "\v" */ | |
| 2988 if (reg_magic == MAGIC_ALL) | |
| 2989 curchr = Magic(curchr); | |
| 2990 break; | |
| 2991 case '*': | |
| 167 | 2992 /* * is not magic as the very first character, eg "?*ptr", when |
| 2993 * after '^', eg "/^*ptr" and when after "\(", "\|", "\&". But | |
| 2994 * "\(\*" is not magic, thus must be magic if "after_slash" */ | |
| 2995 if (reg_magic >= MAGIC_ON | |
| 2996 && !at_start | |
| 2997 && !(prev_at_start && prevchr == Magic('^')) | |
| 2998 && (after_slash | |
| 2999 || (prevchr != Magic('(') | |
| 3000 && prevchr != Magic('&') | |
| 3001 && prevchr != Magic('|')))) | |
| 7 | 3002 curchr = Magic('*'); |
| 3003 break; | |
| 3004 case '^': | |
| 3005 /* '^' is only magic as the very first character and if it's after | |
| 3006 * "\(", "\|", "\&' or "\n" */ | |
| 3007 if (reg_magic >= MAGIC_OFF | |
| 3008 && (at_start | |
| 3009 || reg_magic == MAGIC_ALL | |
| 3010 || prevchr == Magic('(') | |
| 3011 || prevchr == Magic('|') | |
| 3012 || prevchr == Magic('&') | |
| 3013 || prevchr == Magic('n') | |
| 3014 || (no_Magic(prevchr) == '(' | |
| 3015 && prevprevchr == Magic('%')))) | |
| 3016 { | |
| 3017 curchr = Magic('^'); | |
| 3018 at_start = TRUE; | |
| 3019 prev_at_start = FALSE; | |
| 3020 } | |
| 3021 break; | |
| 3022 case '$': | |
| 3023 /* '$' is only magic as the very last char and if it's in front of | |
| 3024 * either "\|", "\)", "\&", or "\n" */ | |
| 3025 if (reg_magic >= MAGIC_OFF) | |
| 3026 { | |
| 3027 char_u *p = regparse + 1; | |
| 6041 | 3028 int is_magic_all = (reg_magic == MAGIC_ALL); |
| 3029 | |
| 3030 /* ignore \c \C \m \M \v \V and \Z after '$' */ | |
| 7 | 3031 while (p[0] == '\\' && (p[1] == 'c' || p[1] == 'C' |
| 6041 | 3032 || p[1] == 'm' || p[1] == 'M' |
| 3033 || p[1] == 'v' || p[1] == 'V' || p[1] == 'Z')) | |
| 3034 { | |
| 3035 if (p[1] == 'v') | |
| 3036 is_magic_all = TRUE; | |
| 3037 else if (p[1] == 'm' || p[1] == 'M' || p[1] == 'V') | |
| 3038 is_magic_all = FALSE; | |
| 7 | 3039 p += 2; |
| 6041 | 3040 } |
| 7 | 3041 if (p[0] == NUL |
| 3042 || (p[0] == '\\' | |
| 3043 && (p[1] == '|' || p[1] == '&' || p[1] == ')' | |
| 3044 || p[1] == 'n')) | |
| 6041 | 3045 || (is_magic_all |
| 3046 && (p[0] == '|' || p[0] == '&' || p[0] == ')')) | |
| 7 | 3047 || reg_magic == MAGIC_ALL) |
| 3048 curchr = Magic('$'); | |
| 3049 } | |
| 3050 break; | |
| 3051 case '\\': | |
| 3052 { | |
| 3053 int c = regparse[1]; | |
| 3054 | |
| 3055 if (c == NUL) | |
| 3056 curchr = '\\'; /* trailing '\' */ | |
| 3057 else if ( | |
| 3058 #ifdef EBCDIC | |
| 3059 vim_strchr(META, c) | |
| 3060 #else | |
| 3061 c <= '~' && META_flags[c] | |
| 3062 #endif | |
| 3063 ) | |
| 3064 { | |
| 3065 /* | |
| 3066 * META contains everything that may be magic sometimes, | |
| 3067 * except ^ and $ ("\^" and "\$" are only magic after | |
| 6830 | 3068 * "\V"). We now fetch the next character and toggle its |
| 7 | 3069 * magicness. Therefore, \ is so meta-magic that it is |
| 3070 * not in META. | |
| 3071 */ | |
| 3072 curchr = -1; | |
| 3073 prev_at_start = at_start; | |
| 3074 at_start = FALSE; /* be able to say "/\*ptr" */ | |
| 3075 ++regparse; | |
| 167 | 3076 ++after_slash; |
| 7 | 3077 peekchr(); |
| 3078 --regparse; | |
| 167 | 3079 --after_slash; |
| 7 | 3080 curchr = toggle_Magic(curchr); |
| 3081 } | |
| 3082 else if (vim_strchr(REGEXP_ABBR, c)) | |
| 3083 { | |
| 3084 /* | |
| 3085 * Handle abbreviations, like "\t" for TAB -- webb | |
| 3086 */ | |
| 3087 curchr = backslash_trans(c); | |
| 3088 } | |
| 3089 else if (reg_magic == MAGIC_NONE && (c == '$' || c == '^')) | |
| 3090 curchr = toggle_Magic(c); | |
| 3091 else | |
| 3092 { | |
| 3093 /* | |
| 3094 * Next character can never be (made) magic? | |
| 3095 * Then backslashing it won't do anything. | |
| 3096 */ | |
| 3097 if (has_mbyte) | |
| 3098 curchr = (*mb_ptr2char)(regparse + 1); | |
| 3099 else | |
| 3100 curchr = c; | |
| 3101 } | |
| 3102 break; | |
| 3103 } | |
| 3104 | |
| 3105 default: | |
| 3106 if (has_mbyte) | |
| 3107 curchr = (*mb_ptr2char)(regparse); | |
| 3108 } | |
| 3109 } | |
| 3110 | |
| 3111 return curchr; | |
| 3112 } | |
| 3113 | |
| 3114 /* | |
| 3115 * Eat one lexed character. Do this in a way that we can undo it. | |
| 3116 */ | |
| 3117 static void | |
|
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diff
changeset
|
3118 skipchr(void) |
| 7 | 3119 { |
| 3120 /* peekchr() eats a backslash, do the same here */ | |
| 3121 if (*regparse == '\\') | |
| 3122 prevchr_len = 1; | |
| 3123 else | |
| 3124 prevchr_len = 0; | |
| 3125 if (regparse[prevchr_len] != NUL) | |
| 3126 { | |
| 714 | 3127 if (enc_utf8) |
| 1449 | 3128 /* exclude composing chars that mb_ptr2len does include */ |
| 3129 prevchr_len += utf_ptr2len(regparse + prevchr_len); | |
| 714 | 3130 else if (has_mbyte) |
| 474 | 3131 prevchr_len += (*mb_ptr2len)(regparse + prevchr_len); |
| 7 | 3132 else |
| 3133 ++prevchr_len; | |
| 3134 } | |
| 3135 regparse += prevchr_len; | |
| 3136 prev_at_start = at_start; | |
| 3137 at_start = FALSE; | |
| 3138 prevprevchr = prevchr; | |
| 3139 prevchr = curchr; | |
| 3140 curchr = nextchr; /* use previously unget char, or -1 */ | |
| 3141 nextchr = -1; | |
| 3142 } | |
| 3143 | |
| 3144 /* | |
| 3145 * Skip a character while keeping the value of prev_at_start for at_start. | |
| 3146 * prevchr and prevprevchr are also kept. | |
| 3147 */ | |
| 3148 static void | |
|
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diff
changeset
|
3149 skipchr_keepstart(void) |
| 7 | 3150 { |
| 3151 int as = prev_at_start; | |
| 3152 int pr = prevchr; | |
| 3153 int prpr = prevprevchr; | |
| 3154 | |
| 3155 skipchr(); | |
| 3156 at_start = as; | |
| 3157 prevchr = pr; | |
| 3158 prevprevchr = prpr; | |
| 3159 } | |
| 3160 | |
| 4444 | 3161 /* |
| 3162 * Get the next character from the pattern. We know about magic and such, so | |
| 3163 * therefore we need a lexical analyzer. | |
| 3164 */ | |
| 7 | 3165 static int |
|
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diff
changeset
|
3166 getchr(void) |
| 7 | 3167 { |
| 3168 int chr = peekchr(); | |
| 3169 | |
| 3170 skipchr(); | |
| 3171 return chr; | |
| 3172 } | |
| 3173 | |
| 3174 /* | |
| 3175 * put character back. Works only once! | |
| 3176 */ | |
| 3177 static void | |
|
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changeset
|
3178 ungetchr(void) |
| 7 | 3179 { |
| 3180 nextchr = curchr; | |
| 3181 curchr = prevchr; | |
| 3182 prevchr = prevprevchr; | |
| 3183 at_start = prev_at_start; | |
| 3184 prev_at_start = FALSE; | |
| 3185 | |
| 3186 /* Backup regparse, so that it's at the same position as before the | |
| 3187 * getchr(). */ | |
| 3188 regparse -= prevchr_len; | |
| 3189 } | |
| 3190 | |
| 3191 /* | |
| 29 | 3192 * Get and return the value of the hex string at the current position. |
| 3193 * Return -1 if there is no valid hex number. | |
| 3194 * The position is updated: | |
| 24 | 3195 * blahblah\%x20asdf |
| 856 | 3196 * before-^ ^-after |
| 24 | 3197 * The parameter controls the maximum number of input characters. This will be |
| 3198 * 2 when reading a \%x20 sequence and 4 when reading a \%u20AC sequence. | |
| 3199 */ | |
|
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3200 static long |
|
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|
3201 gethexchrs(int maxinputlen) |
| 24 | 3202 { |
|
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|
3203 long_u nr = 0; |
| 24 | 3204 int c; |
| 3205 int i; | |
| 3206 | |
| 3207 for (i = 0; i < maxinputlen; ++i) | |
| 3208 { | |
| 3209 c = regparse[0]; | |
| 3210 if (!vim_isxdigit(c)) | |
| 3211 break; | |
| 3212 nr <<= 4; | |
| 3213 nr |= hex2nr(c); | |
| 3214 ++regparse; | |
| 3215 } | |
| 3216 | |
| 3217 if (i == 0) | |
| 3218 return -1; | |
|
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|
3219 return (long)nr; |
| 24 | 3220 } |
| 3221 | |
| 3222 /* | |
|
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|
3223 * Get and return the value of the decimal string immediately after the |
| 24 | 3224 * current position. Return -1 for invalid. Consumes all digits. |
| 3225 */ | |
|
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|
3226 static long |
|
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|
3227 getdecchrs(void) |
| 24 | 3228 { |
|
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changeset
|
3229 long_u nr = 0; |
| 24 | 3230 int c; |
| 3231 int i; | |
| 3232 | |
| 3233 for (i = 0; ; ++i) | |
| 3234 { | |
| 3235 c = regparse[0]; | |
| 3236 if (c < '0' || c > '9') | |
| 3237 break; | |
| 3238 nr *= 10; | |
| 3239 nr += c - '0'; | |
| 3240 ++regparse; | |
|
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|
3241 curchr = -1; /* no longer valid */ |
| 24 | 3242 } |
| 3243 | |
| 3244 if (i == 0) | |
| 3245 return -1; | |
|
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changeset
|
3246 return (long)nr; |
| 24 | 3247 } |
| 3248 | |
| 3249 /* | |
| 3250 * get and return the value of the octal string immediately after the current | |
| 3251 * position. Return -1 for invalid, or 0-255 for valid. Smart enough to handle | |
| 3252 * numbers > 377 correctly (for example, 400 is treated as 40) and doesn't | |
| 3253 * treat 8 or 9 as recognised characters. Position is updated: | |
| 3254 * blahblah\%o210asdf | |
| 856 | 3255 * before-^ ^-after |
| 24 | 3256 */ |
|
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|
3257 static long |
|
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|
3258 getoctchrs(void) |
| 24 | 3259 { |
|
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|
3260 long_u nr = 0; |
| 24 | 3261 int c; |
| 3262 int i; | |
| 3263 | |
| 3264 for (i = 0; i < 3 && nr < 040; ++i) | |
| 3265 { | |
| 3266 c = regparse[0]; | |
| 3267 if (c < '0' || c > '7') | |
| 3268 break; | |
| 3269 nr <<= 3; | |
| 3270 nr |= hex2nr(c); | |
| 3271 ++regparse; | |
| 3272 } | |
| 3273 | |
| 3274 if (i == 0) | |
| 3275 return -1; | |
|
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changeset
|
3276 return (long)nr; |
| 24 | 3277 } |
| 3278 | |
| 3279 /* | |
| 3280 * Get a number after a backslash that is inside []. | |
| 3281 * When nothing is recognized return a backslash. | |
| 3282 */ | |
| 3283 static int | |
|
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|
3284 coll_get_char(void) |
| 24 | 3285 { |
|
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|
3286 long nr = -1; |
| 24 | 3287 |
| 3288 switch (*regparse++) | |
| 3289 { | |
| 3290 case 'd': nr = getdecchrs(); break; | |
| 3291 case 'o': nr = getoctchrs(); break; | |
| 3292 case 'x': nr = gethexchrs(2); break; | |
| 3293 case 'u': nr = gethexchrs(4); break; | |
| 3294 case 'U': nr = gethexchrs(8); break; | |
| 3295 } | |
|
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|
3296 if (nr < 0 || nr > INT_MAX) |
| 24 | 3297 { |
| 3298 /* If getting the number fails be backwards compatible: the character | |
| 3299 * is a backslash. */ | |
| 3300 --regparse; | |
| 3301 nr = '\\'; | |
| 3302 } | |
| 3303 return nr; | |
| 3304 } | |
| 3305 | |
| 3306 /* | |
| 7 | 3307 * read_limits - Read two integers to be taken as a minimum and maximum. |
| 3308 * If the first character is '-', then the range is reversed. | |
| 3309 * Should end with 'end'. If minval is missing, zero is default, if maxval is | |
| 3310 * missing, a very big number is the default. | |
| 3311 */ | |
| 3312 static int | |
|
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diff
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|
3313 read_limits(long *minval, long *maxval) |
| 7 | 3314 { |
| 3315 int reverse = FALSE; | |
| 3316 char_u *first_char; | |
| 3317 long tmp; | |
| 3318 | |
| 3319 if (*regparse == '-') | |
| 3320 { | |
| 3321 /* Starts with '-', so reverse the range later */ | |
| 3322 regparse++; | |
| 3323 reverse = TRUE; | |
| 3324 } | |
| 3325 first_char = regparse; | |
| 3326 *minval = getdigits(®parse); | |
| 3327 if (*regparse == ',') /* There is a comma */ | |
| 3328 { | |
| 3329 if (vim_isdigit(*++regparse)) | |
| 3330 *maxval = getdigits(®parse); | |
| 3331 else | |
| 3332 *maxval = MAX_LIMIT; | |
| 3333 } | |
| 3334 else if (VIM_ISDIGIT(*first_char)) | |
| 3335 *maxval = *minval; /* It was \{n} or \{-n} */ | |
| 3336 else | |
| 3337 *maxval = MAX_LIMIT; /* It was \{} or \{-} */ | |
| 3338 if (*regparse == '\\') | |
| 3339 regparse++; /* Allow either \{...} or \{...\} */ | |
| 167 | 3340 if (*regparse != '}') |
|
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|
3341 EMSG2_RET_FAIL(_("E554: Syntax error in %s{...}"), |
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|
3342 reg_magic == MAGIC_ALL); |
| 7 | 3343 |
| 3344 /* | |
| 3345 * Reverse the range if there was a '-', or make sure it is in the right | |
| 3346 * order otherwise. | |
| 3347 */ | |
| 3348 if ((!reverse && *minval > *maxval) || (reverse && *minval < *maxval)) | |
| 3349 { | |
| 3350 tmp = *minval; | |
| 3351 *minval = *maxval; | |
| 3352 *maxval = tmp; | |
| 3353 } | |
| 3354 skipchr(); /* let's be friends with the lexer again */ | |
| 3355 return OK; | |
| 3356 } | |
| 3357 | |
| 3358 /* | |
| 3359 * vim_regexec and friends | |
| 3360 */ | |
| 3361 | |
| 3362 /* | |
| 3363 * Global work variables for vim_regexec(). | |
| 3364 */ | |
| 3365 | |
| 3366 /* | |
| 3367 * Structure used to save the current input state, when it needs to be | |
| 3368 * restored after trying a match. Used by reg_save() and reg_restore(). | |
| 233 | 3369 * Also stores the length of "backpos". |
| 7 | 3370 */ |
| 3371 typedef struct | |
| 3372 { | |
| 3373 union | |
| 3374 { | |
|
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|
3375 char_u *ptr; /* rex.input pointer, for single-line regexp */ |
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3376 lpos_T pos; /* rex.input pos, for multi-line regexp */ |
| 7 | 3377 } rs_u; |
| 233 | 3378 int rs_len; |
| 7 | 3379 } regsave_T; |
| 3380 | |
| 3381 /* struct to save start/end pointer/position in for \(\) */ | |
| 3382 typedef struct | |
| 3383 { | |
| 3384 union | |
| 3385 { | |
| 3386 char_u *ptr; | |
| 3387 lpos_T pos; | |
| 3388 } se_u; | |
| 3389 } save_se_T; | |
| 3390 | |
| 1579 | 3391 /* used for BEHIND and NOBEHIND matching */ |
| 3392 typedef struct regbehind_S | |
| 3393 { | |
| 3394 regsave_T save_after; | |
| 3395 regsave_T save_behind; | |
| 1602 | 3396 int save_need_clear_subexpr; |
| 1579 | 3397 save_se_T save_start[NSUBEXP]; |
| 3398 save_se_T save_end[NSUBEXP]; | |
| 3399 } regbehind_T; | |
| 3400 | |
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3401 static long bt_regexec_both(char_u *line, colnr_T col, proftime_T *tm, int *timed_out); |
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3402 static long regtry(bt_regprog_T *prog, colnr_T col, proftime_T *tm, int *timed_out); |
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3403 static void cleanup_subexpr(void); |
| 7 | 3404 #ifdef FEAT_SYN_HL |
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3405 static void cleanup_zsubexpr(void); |
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3406 #endif |
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3407 static void save_subexpr(regbehind_T *bp); |
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|
3408 static void restore_subexpr(regbehind_T *bp); |
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3409 static void reg_nextline(void); |
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|
3410 static void reg_save(regsave_T *save, garray_T *gap); |
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3411 static void reg_restore(regsave_T *save, garray_T *gap); |
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|
3412 static int reg_save_equal(regsave_T *save); |
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|
3413 static void save_se_multi(save_se_T *savep, lpos_T *posp); |
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|
3414 static void save_se_one(save_se_T *savep, char_u **pp); |
| 7 | 3415 |
| 3416 /* Save the sub-expressions before attempting a match. */ | |
| 3417 #define save_se(savep, posp, pp) \ | |
| 3418 REG_MULTI ? save_se_multi((savep), (posp)) : save_se_one((savep), (pp)) | |
| 3419 | |
| 3420 /* After a failed match restore the sub-expressions. */ | |
| 3421 #define restore_se(savep, posp, pp) { \ | |
| 3422 if (REG_MULTI) \ | |
| 3423 *(posp) = (savep)->se_u.pos; \ | |
| 3424 else \ | |
| 3425 *(pp) = (savep)->se_u.ptr; } | |
| 3426 | |
|
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|
3427 static int re_num_cmp(long_u val, char_u *scan); |
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|
3428 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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3429 static int regmatch(char_u *prog, proftime_T *tm, int *timed_out); |
|
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3430 static int regrepeat(char_u *p, long maxcount); |
| 7 | 3431 |
| 3432 #ifdef DEBUG | |
| 3433 int regnarrate = 0; | |
| 3434 #endif | |
| 3435 | |
| 3436 /* | |
| 3437 * Sometimes need to save a copy of a line. Since alloc()/free() is very | |
| 3438 * slow, we keep one allocated piece of memory and only re-allocate it when | |
| 4444 | 3439 * it's too small. It's freed in bt_regexec_both() when finished. |
| 7 | 3440 */ |
| 1468 | 3441 static char_u *reg_tofree = NULL; |
| 7 | 3442 static unsigned reg_tofreelen; |
| 3443 | |
| 3444 /* | |
|
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3445 * Structure used to store the execution state of the regex engine. |
| 1209 | 3446 * Which ones are set depends on whether a single-line or multi-line match is |
| 7 | 3447 * done: |
| 3448 * single-line multi-line | |
| 3449 * reg_match ®match_T NULL | |
| 3450 * reg_mmatch NULL ®mmatch_T | |
| 3451 * reg_startp reg_match->startp <invalid> | |
| 3452 * reg_endp reg_match->endp <invalid> | |
| 3453 * reg_startpos <invalid> reg_mmatch->startpos | |
| 3454 * reg_endpos <invalid> reg_mmatch->endpos | |
| 3455 * reg_win NULL window in which to search | |
| 4061 | 3456 * reg_buf curbuf buffer in which to search |
| 7 | 3457 * reg_firstlnum <invalid> first line in which to search |
| 3458 * reg_maxline 0 last line nr | |
| 3459 * reg_line_lbr FALSE or TRUE FALSE | |
| 3460 */ | |
|
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3461 typedef struct { |
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3462 regmatch_T *reg_match; |
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3463 regmmatch_T *reg_mmatch; |
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3464 char_u **reg_startp; |
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3465 char_u **reg_endp; |
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3466 lpos_T *reg_startpos; |
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3467 lpos_T *reg_endpos; |
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3468 win_T *reg_win; |
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3469 buf_T *reg_buf; |
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3470 linenr_T reg_firstlnum; |
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3471 linenr_T reg_maxline; |
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3472 int reg_line_lbr; /* "\n" in string is line break */ |
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3473 |
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3474 // The current match-position is stord in these variables: |
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3475 linenr_T lnum; // line number, relative to first line |
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3476 char_u *line; // start of current line |
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3477 char_u *input; // current input, points into "regline" |
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3478 |
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3479 int need_clear_subexpr; // subexpressions still need to be cleared |
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3480 #ifdef FEAT_SYN_HL |
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3481 int need_clear_zsubexpr; // extmatch subexpressions still need to be |
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3482 // cleared |
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3483 #endif |
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3484 |
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3485 /* Internal copy of 'ignorecase'. It is set at each call to vim_regexec(). |
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3486 * Normally it gets the value of "rm_ic" or "rmm_ic", but when the pattern |
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3487 * contains '\c' or '\C' the value is overruled. */ |
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3488 int reg_ic; |
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3489 |
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3490 /* Similar to "reg_ic", but only for 'combining' characters. Set with \Z |
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3491 * flag in the regexp. Defaults to false, always. */ |
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3492 int reg_icombine; |
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3493 |
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3494 /* Copy of "rmm_maxcol": maximum column to search for a match. Zero when |
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3495 * there is no maximum. */ |
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3496 colnr_T reg_maxcol; |
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3497 |
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3498 // State for the NFA engine regexec. |
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3499 int nfa_has_zend; // NFA regexp \ze operator encountered. |
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3500 int nfa_has_backref; // NFA regexp \1 .. \9 encountered. |
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3501 int nfa_nsubexpr; // Number of sub expressions actually being used |
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3502 // during execution. 1 if only the whole match |
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3503 // (subexpr 0) is used. |
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3504 // listid is global, so that it increases on recursive calls to |
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3505 // nfa_regmatch(), which means we don't have to clear the lastlist field of |
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3506 // all the states. |
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3507 int nfa_listid; |
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3508 int nfa_alt_listid; |
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3509 |
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3510 #ifdef FEAT_SYN_HL |
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3511 int nfa_has_zsubexpr; // NFA regexp has \z( ), set zsubexpr. |
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3512 #endif |
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3513 } regexec_T; |
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3514 |
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3515 static regexec_T rex; |
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3516 static int rex_in_use = FALSE; |
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3517 |
| 7 | 3518 |
| 270 | 3519 /* Values for rs_state in regitem_T. */ |
| 3520 typedef enum regstate_E | |
| 3521 { | |
| 3522 RS_NOPEN = 0 /* NOPEN and NCLOSE */ | |
| 3523 , RS_MOPEN /* MOPEN + [0-9] */ | |
| 3524 , RS_MCLOSE /* MCLOSE + [0-9] */ | |
| 3525 #ifdef FEAT_SYN_HL | |
| 3526 , RS_ZOPEN /* ZOPEN + [0-9] */ | |
| 3527 , RS_ZCLOSE /* ZCLOSE + [0-9] */ | |
| 3528 #endif | |
| 3529 , RS_BRANCH /* BRANCH */ | |
| 3530 , RS_BRCPLX_MORE /* BRACE_COMPLEX and trying one more match */ | |
| 3531 , RS_BRCPLX_LONG /* BRACE_COMPLEX and trying longest match */ | |
| 3532 , RS_BRCPLX_SHORT /* BRACE_COMPLEX and trying shortest match */ | |
| 3533 , RS_NOMATCH /* NOMATCH */ | |
| 3534 , RS_BEHIND1 /* BEHIND / NOBEHIND matching rest */ | |
| 3535 , RS_BEHIND2 /* BEHIND / NOBEHIND matching behind part */ | |
| 3536 , RS_STAR_LONG /* STAR/PLUS/BRACE_SIMPLE longest match */ | |
| 3537 , RS_STAR_SHORT /* STAR/PLUS/BRACE_SIMPLE shortest match */ | |
| 3538 } regstate_T; | |
| 3539 | |
| 3540 /* | |
| 3541 * When there are alternatives a regstate_T is put on the regstack to remember | |
| 3542 * what we are doing. | |
| 3543 * Before it may be another type of item, depending on rs_state, to remember | |
| 3544 * more things. | |
| 3545 */ | |
| 3546 typedef struct regitem_S | |
| 3547 { | |
|
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3548 regstate_T rs_state; // what we are doing, one of RS_ above |
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3549 short rs_no; // submatch nr or BEHIND/NOBEHIND |
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3550 char_u *rs_scan; // current node in program |
| 270 | 3551 union |
| 3552 { | |
| 3553 save_se_T sesave; | |
| 3554 regsave_T regsave; | |
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3555 } rs_un; // room for saving rex.input |
| 270 | 3556 } regitem_T; |
| 3557 | |
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3558 static regitem_T *regstack_push(regstate_T state, char_u *scan); |
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3559 static void regstack_pop(char_u **scan); |
| 270 | 3560 |
| 3561 /* used for STAR, PLUS and BRACE_SIMPLE matching */ | |
| 3562 typedef struct regstar_S | |
| 3563 { | |
| 3564 int nextb; /* next byte */ | |
| 3565 int nextb_ic; /* next byte reverse case */ | |
| 3566 long count; | |
| 3567 long minval; | |
| 3568 long maxval; | |
| 3569 } regstar_T; | |
| 3570 | |
| 3571 /* used to store input position when a BACK was encountered, so that we now if | |
| 3572 * we made any progress since the last time. */ | |
| 3573 typedef struct backpos_S | |
| 3574 { | |
| 3575 char_u *bp_scan; /* "scan" where BACK was encountered */ | |
| 3576 regsave_T bp_pos; /* last input position */ | |
| 3577 } backpos_T; | |
| 3578 | |
| 3579 /* | |
| 1520 | 3580 * "regstack" and "backpos" are used by regmatch(). They are kept over calls |
| 3581 * to avoid invoking malloc() and free() often. | |
| 3582 * "regstack" is a stack with regitem_T items, sometimes preceded by regstar_T | |
| 3583 * or regbehind_T. | |
| 3584 * "backpos_T" is a table with backpos_T for BACK | |
| 270 | 3585 */ |
| 1520 | 3586 static garray_T regstack = {0, 0, 0, 0, NULL}; |
| 3587 static garray_T backpos = {0, 0, 0, 0, NULL}; | |
| 3588 | |
| 3589 /* | |
| 3590 * Both for regstack and backpos tables we use the following strategy of | |
| 3591 * allocation (to reduce malloc/free calls): | |
| 3592 * - Initial size is fairly small. | |
| 3593 * - When needed, the tables are grown bigger (8 times at first, double after | |
| 3594 * that). | |
| 3595 * - After executing the match we free the memory only if the array has grown. | |
| 3596 * Thus the memory is kept allocated when it's at the initial size. | |
| 3597 * This makes it fast while not keeping a lot of memory allocated. | |
| 3598 * A three times speed increase was observed when using many simple patterns. | |
| 3599 */ | |
| 3600 #define REGSTACK_INITIAL 2048 | |
| 3601 #define BACKPOS_INITIAL 64 | |
| 3602 | |
| 3603 #if defined(EXITFREE) || defined(PROTO) | |
| 3604 void | |
|
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3605 free_regexp_stuff(void) |
| 1520 | 3606 { |
| 3607 ga_clear(®stack); | |
| 3608 ga_clear(&backpos); | |
| 3609 vim_free(reg_tofree); | |
| 3610 vim_free(reg_prev_sub); | |
| 3611 } | |
| 3612 #endif | |
| 270 | 3613 |
| 7 | 3614 /* |
|
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3615 * Return TRUE if character 'c' is included in 'iskeyword' option for |
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3616 * "reg_buf" buffer. |
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3617 */ |
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changeset
|
3618 static int |
|
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patch 8.1.0862: no verbose version of character classes
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parents:
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diff
changeset
|
3619 reg_iswordc(int c) |
|
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Bram Moolenaar <Bram@vim.org>
parents:
15603
diff
changeset
|
3620 { |
|
2e2f07561f4b
patch 8.1.0862: no verbose version of character classes
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parents:
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diff
changeset
|
3621 return vim_iswordc_buf(c, rex.reg_buf); |
|
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Bram Moolenaar <Bram@vim.org>
parents:
15603
diff
changeset
|
3622 } |
|
2e2f07561f4b
patch 8.1.0862: no verbose version of character classes
Bram Moolenaar <Bram@vim.org>
parents:
15603
diff
changeset
|
3623 |
|
2e2f07561f4b
patch 8.1.0862: no verbose version of character classes
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parents:
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diff
changeset
|
3624 /* |
| 7 | 3625 * Get pointer to the line "lnum", which is relative to "reg_firstlnum". |
| 3626 */ | |
| 3627 static char_u * | |
|
7833
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Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
3628 reg_getline(linenr_T lnum) |
| 7 | 3629 { |
| 3630 /* when looking behind for a match/no-match lnum is negative. But we | |
| 3631 * can't go before line 1 */ | |
|
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parents:
10187
diff
changeset
|
3632 if (rex.reg_firstlnum + lnum < 1) |
| 7 | 3633 return NULL; |
|
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parents:
10187
diff
changeset
|
3634 if (lnum > rex.reg_maxline) |
| 481 | 3635 /* Must have matched the "\n" in the last line. */ |
| 3636 return (char_u *)""; | |
|
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Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
3637 return ml_get_buf(rex.reg_buf, rex.reg_firstlnum + lnum, FALSE); |
| 7 | 3638 } |
| 3639 | |
| 3640 static regsave_T behind_pos; | |
| 3641 | |
| 3642 #ifdef FEAT_SYN_HL | |
| 3643 static char_u *reg_startzp[NSUBEXP]; /* Workspace to mark beginning */ | |
| 3644 static char_u *reg_endzp[NSUBEXP]; /* and end of \z(...\) matches */ | |
| 3645 static lpos_T reg_startzpos[NSUBEXP]; /* idem, beginning pos */ | |
| 3646 static lpos_T reg_endzpos[NSUBEXP]; /* idem, end pos */ | |
| 3647 #endif | |
| 3648 | |
| 3649 /* TRUE if using multi-line regexp. */ | |
|
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Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
3650 #define REG_MULTI (rex.reg_match == NULL) |
| 4444 | 3651 |
| 7 | 3652 /* |
| 3653 * Match a regexp against a string. | |
| 3654 * "rmp->regprog" is a compiled regexp as returned by vim_regcomp(). | |
| 3655 * Uses curbuf for line count and 'iskeyword'. | |
| 5838 | 3656 * if "line_lbr" is TRUE consider a "\n" in "line" to be a line break. |
| 7 | 3657 * |
| 6390 | 3658 * Returns 0 for failure, number of lines contained in the match otherwise. |
| 7 | 3659 */ |
| 4444 | 3660 static int |
|
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diff
changeset
|
3661 bt_regexec_nl( |
|
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
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parents:
7807
diff
changeset
|
3662 regmatch_T *rmp, |
|
c079097365f3
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diff
changeset
|
3663 char_u *line, /* string to match against */ |
|
c079097365f3
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7807
diff
changeset
|
3664 colnr_T col, /* column to start looking for match */ |
|
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
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diff
changeset
|
3665 int line_lbr) |
| 7 | 3666 { |
|
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diff
changeset
|
3667 rex.reg_match = rmp; |
|
d76ccdacb41e
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10187
diff
changeset
|
3668 rex.reg_mmatch = NULL; |
|
d76ccdacb41e
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10187
diff
changeset
|
3669 rex.reg_maxline = 0; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
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parents:
10187
diff
changeset
|
3670 rex.reg_line_lbr = line_lbr; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
3671 rex.reg_buf = curbuf; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
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10187
diff
changeset
|
3672 rex.reg_win = NULL; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
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10187
diff
changeset
|
3673 rex.reg_ic = rmp->rm_ic; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
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parents:
10187
diff
changeset
|
3674 rex.reg_icombine = FALSE; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
3675 rex.reg_maxcol = 0; |
| 6390 | 3676 |
|
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
|
3677 return bt_regexec_both(line, col, NULL, NULL); |
| 7 | 3678 } |
| 3679 | |
| 3680 /* | |
| 3681 * Match a regexp against multiple lines. | |
| 3682 * "rmp->regprog" is a compiled regexp as returned by vim_regcomp(). | |
| 3683 * Uses curbuf for line count and 'iskeyword'. | |
| 3684 * | |
| 3685 * Return zero if there is no match. Return number of lines contained in the | |
| 3686 * match otherwise. | |
| 3687 */ | |
| 4444 | 3688 static long |
|
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parents:
7807
diff
changeset
|
3689 bt_regexec_multi( |
|
c079097365f3
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parents:
7807
diff
changeset
|
3690 regmmatch_T *rmp, |
|
c079097365f3
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diff
changeset
|
3691 win_T *win, /* window in which to search or NULL */ |
|
c079097365f3
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parents:
7807
diff
changeset
|
3692 buf_T *buf, /* buffer in which to search */ |
|
c079097365f3
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parents:
7807
diff
changeset
|
3693 linenr_T lnum, /* nr of line to start looking for match */ |
|
c079097365f3
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7807
diff
changeset
|
3694 colnr_T col, /* column to start looking for match */ |
|
11521
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Christian Brabandt <cb@256bit.org>
parents:
11482
diff
changeset
|
3695 proftime_T *tm, /* timeout limit or NULL */ |
|
578df034735d
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Christian Brabandt <cb@256bit.org>
parents:
11482
diff
changeset
|
3696 int *timed_out) /* flag set on timeout or NULL */ |
| 7 | 3697 { |
|
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10187
diff
changeset
|
3698 rex.reg_match = NULL; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
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10187
diff
changeset
|
3699 rex.reg_mmatch = rmp; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
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parents:
10187
diff
changeset
|
3700 rex.reg_buf = buf; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
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10187
diff
changeset
|
3701 rex.reg_win = win; |
|
d76ccdacb41e
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10187
diff
changeset
|
3702 rex.reg_firstlnum = lnum; |
|
d76ccdacb41e
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Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
3703 rex.reg_maxline = rex.reg_buf->b_ml.ml_line_count - lnum; |
|
d76ccdacb41e
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10187
diff
changeset
|
3704 rex.reg_line_lbr = FALSE; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
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parents:
10187
diff
changeset
|
3705 rex.reg_ic = rmp->rmm_ic; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
3706 rex.reg_icombine = FALSE; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
3707 rex.reg_maxcol = rmp->rmm_maxcol; |
| 7 | 3708 |
|
11521
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Christian Brabandt <cb@256bit.org>
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11482
diff
changeset
|
3709 return bt_regexec_both(NULL, col, tm, timed_out); |
| 7 | 3710 } |
| 3711 | |
| 3712 /* | |
| 3713 * Match a regexp against a string ("line" points to the string) or multiple | |
| 3714 * lines ("line" is NULL, use reg_getline()). | |
| 6390 | 3715 * Returns 0 for failure, number of lines contained in the match otherwise. |
| 7 | 3716 */ |
| 3717 static long | |
|
7833
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parents:
7807
diff
changeset
|
3718 bt_regexec_both( |
|
c079097365f3
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parents:
7807
diff
changeset
|
3719 char_u *line, |
|
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
3720 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
|
3721 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
|
3722 int *timed_out) /* flag set on timeout or NULL */ |
| 7 | 3723 { |
| 6390 | 3724 bt_regprog_T *prog; |
| 3725 char_u *s; | |
| 3726 long retval = 0L; | |
| 7 | 3727 |
| 1520 | 3728 /* Create "regstack" and "backpos" if they are not allocated yet. |
| 3729 * We allocate *_INITIAL amount of bytes first and then set the grow size | |
| 3730 * to much bigger value to avoid many malloc calls in case of deep regular | |
| 3731 * expressions. */ | |
| 3732 if (regstack.ga_data == NULL) | |
| 3733 { | |
| 3734 /* Use an item size of 1 byte, since we push different things | |
| 3735 * onto the regstack. */ | |
| 3736 ga_init2(®stack, 1, REGSTACK_INITIAL); | |
| 7009 | 3737 (void)ga_grow(®stack, REGSTACK_INITIAL); |
| 1520 | 3738 regstack.ga_growsize = REGSTACK_INITIAL * 8; |
| 3739 } | |
| 3740 | |
| 3741 if (backpos.ga_data == NULL) | |
| 3742 { | |
| 3743 ga_init2(&backpos, sizeof(backpos_T), BACKPOS_INITIAL); | |
| 7009 | 3744 (void)ga_grow(&backpos, BACKPOS_INITIAL); |
| 1520 | 3745 backpos.ga_growsize = BACKPOS_INITIAL * 8; |
| 3746 } | |
| 270 | 3747 |
| 7 | 3748 if (REG_MULTI) |
| 3749 { | |
|
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parents:
10187
diff
changeset
|
3750 prog = (bt_regprog_T *)rex.reg_mmatch->regprog; |
| 7 | 3751 line = reg_getline((linenr_T)0); |
|
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10187
diff
changeset
|
3752 rex.reg_startpos = rex.reg_mmatch->startpos; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
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parents:
10187
diff
changeset
|
3753 rex.reg_endpos = rex.reg_mmatch->endpos; |
| 7 | 3754 } |
| 3755 else | |
| 3756 { | |
|
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parents:
10187
diff
changeset
|
3757 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
|
3758 rex.reg_startp = rex.reg_match->startp; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
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10187
diff
changeset
|
3759 rex.reg_endp = rex.reg_match->endp; |
| 7 | 3760 } |
| 3761 | |
| 3762 /* Be paranoid... */ | |
| 3763 if (prog == NULL || line == NULL) | |
| 3764 { | |
|
15470
55ccc2d353bd
patch 8.1.0743: giving error messages is not flexible
Bram Moolenaar <Bram@vim.org>
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15339
diff
changeset
|
3765 emsg(_(e_null)); |
| 7 | 3766 goto theend; |
| 3767 } | |
| 3768 | |
| 3769 /* Check validity of program. */ | |
| 3770 if (prog_magic_wrong()) | |
| 3771 goto theend; | |
| 3772 | |
| 410 | 3773 /* If the start column is past the maximum column: no need to try. */ |
|
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Christian Brabandt <cb@256bit.org>
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10187
diff
changeset
|
3774 if (rex.reg_maxcol > 0 && col >= rex.reg_maxcol) |
| 410 | 3775 goto theend; |
| 3776 | |
|
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Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
3777 /* If pattern contains "\c" or "\C": overrule value of rex.reg_ic */ |
| 7 | 3778 if (prog->regflags & RF_ICASE) |
|
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10187
diff
changeset
|
3779 rex.reg_ic = TRUE; |
| 7 | 3780 else if (prog->regflags & RF_NOICASE) |
|
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10187
diff
changeset
|
3781 rex.reg_ic = FALSE; |
| 7 | 3782 |
|
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commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
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10187
diff
changeset
|
3783 /* If pattern contains "\Z" overrule value of rex.reg_icombine */ |
| 7 | 3784 if (prog->regflags & RF_ICOMBINE) |
|
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commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
3785 rex.reg_icombine = TRUE; |
| 7 | 3786 |
| 3787 /* If there is a "must appear" string, look for it. */ | |
| 3788 if (prog->regmust != NULL) | |
| 3789 { | |
| 3790 int c; | |
| 3791 | |
| 3792 if (has_mbyte) | |
| 3793 c = (*mb_ptr2char)(prog->regmust); | |
| 3794 else | |
| 3795 c = *prog->regmust; | |
| 3796 s = line + col; | |
| 170 | 3797 |
| 3798 /* | |
| 3799 * This is used very often, esp. for ":global". Use three versions of | |
| 3800 * the loop to avoid overhead of conditions. | |
| 3801 */ | |
|
15603
639b8318472c
patch 8.1.0809: too many #ifdefs
Bram Moolenaar <Bram@vim.org>
parents:
15555
diff
changeset
|
3802 if (!rex.reg_ic && !has_mbyte) |
| 170 | 3803 while ((s = vim_strbyte(s, c)) != NULL) |
| 3804 { | |
| 3805 if (cstrncmp(s, prog->regmust, &prog->regmlen) == 0) | |
| 3806 break; /* Found it. */ | |
| 3807 ++s; | |
| 3808 } | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
3809 else if (!rex.reg_ic || (!enc_utf8 && mb_char2len(c) > 1)) |
| 170 | 3810 while ((s = vim_strchr(s, c)) != NULL) |
| 3811 { | |
| 3812 if (cstrncmp(s, prog->regmust, &prog->regmlen) == 0) | |
| 3813 break; /* Found it. */ | |
|
11127
506f5d8b7d8b
patch 8.0.0451: some macros are in lower case
Christian Brabandt <cb@256bit.org>
parents:
11121
diff
changeset
|
3814 MB_PTR_ADV(s); |
| 170 | 3815 } |
| 3816 else | |
| 3817 while ((s = cstrchr(s, c)) != NULL) | |
| 3818 { | |
| 3819 if (cstrncmp(s, prog->regmust, &prog->regmlen) == 0) | |
| 3820 break; /* Found it. */ | |
|
11127
506f5d8b7d8b
patch 8.0.0451: some macros are in lower case
Christian Brabandt <cb@256bit.org>
parents:
11121
diff
changeset
|
3821 MB_PTR_ADV(s); |
| 170 | 3822 } |
| 7 | 3823 if (s == NULL) /* Not present. */ |
| 3824 goto theend; | |
| 3825 } | |
| 3826 | |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
3827 rex.line = line; |
|
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
3828 rex.lnum = 0; |
| 2578 | 3829 reg_toolong = FALSE; |
| 7 | 3830 |
| 3831 /* Simplest case: Anchored match need be tried only once. */ | |
| 3832 if (prog->reganch) | |
| 3833 { | |
| 3834 int c; | |
| 3835 | |
| 3836 if (has_mbyte) | |
|
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
|
3837 c = (*mb_ptr2char)(rex.line + col); |
| 7 | 3838 else |
|
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
|
3839 c = rex.line[col]; |
| 7 | 3840 if (prog->regstart == NUL |
| 3841 || prog->regstart == c | |
|
15603
639b8318472c
patch 8.1.0809: too many #ifdefs
Bram Moolenaar <Bram@vim.org>
parents:
15555
diff
changeset
|
3842 || (rex.reg_ic |
|
639b8318472c
patch 8.1.0809: too many #ifdefs
Bram Moolenaar <Bram@vim.org>
parents:
15555
diff
changeset
|
3843 && (((enc_utf8 && utf_fold(prog->regstart) == utf_fold(c))) |
| 7 | 3844 || (c < 255 && prog->regstart < 255 && |
| 1347 | 3845 MB_TOLOWER(prog->regstart) == MB_TOLOWER(c))))) |
|
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patch 8.0.0646: the hlsearch test fails on fast systems
Christian Brabandt <cb@256bit.org>
parents:
11525
diff
changeset
|
3846 retval = regtry(prog, col, tm, timed_out); |
| 7 | 3847 else |
| 3848 retval = 0; | |
| 3849 } | |
| 3850 else | |
| 3851 { | |
| 1521 | 3852 #ifdef FEAT_RELTIME |
| 3853 int tm_count = 0; | |
| 3854 #endif | |
| 7 | 3855 /* Messy cases: unanchored match. */ |
| 180 | 3856 while (!got_int) |
| 7 | 3857 { |
| 3858 if (prog->regstart != NUL) | |
| 3859 { | |
| 170 | 3860 /* Skip until the char we know it must start with. |
| 3861 * Used often, do some work to avoid call overhead. */ | |
|
15603
639b8318472c
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Bram Moolenaar <Bram@vim.org>
parents:
15555
diff
changeset
|
3862 if (!rex.reg_ic && !has_mbyte) |
|
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
|
3863 s = vim_strbyte(rex.line + col, prog->regstart); |
| 170 | 3864 else |
|
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
|
3865 s = cstrchr(rex.line + col, prog->regstart); |
| 7 | 3866 if (s == NULL) |
| 3867 { | |
| 3868 retval = 0; | |
| 3869 break; | |
| 3870 } | |
|
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
|
3871 col = (int)(s - rex.line); |
| 7 | 3872 } |
| 3873 | |
| 410 | 3874 /* Check for maximum column to try. */ |
|
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d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
3875 if (rex.reg_maxcol > 0 && col >= rex.reg_maxcol) |
| 410 | 3876 { |
| 3877 retval = 0; | |
| 3878 break; | |
| 3879 } | |
| 3880 | |
|
11527
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Christian Brabandt <cb@256bit.org>
parents:
11525
diff
changeset
|
3881 retval = regtry(prog, col, tm, timed_out); |
| 7 | 3882 if (retval > 0) |
| 3883 break; | |
| 3884 | |
| 3885 /* if not currently on the first line, get it again */ | |
|
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
|
3886 if (rex.lnum != 0) |
| 7 | 3887 { |
|
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
|
3888 rex.lnum = 0; |
|
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
3889 rex.line = reg_getline((linenr_T)0); |
| 7 | 3890 } |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
3891 if (rex.line[col] == NUL) |
| 7 | 3892 break; |
| 3893 if (has_mbyte) | |
|
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
|
3894 col += (*mb_ptr2len)(rex.line + col); |
| 7 | 3895 else |
| 3896 ++col; | |
| 1521 | 3897 #ifdef FEAT_RELTIME |
| 3898 /* Check for timeout once in a twenty times to avoid overhead. */ | |
| 3899 if (tm != NULL && ++tm_count == 20) | |
| 3900 { | |
| 3901 tm_count = 0; | |
| 3902 if (profile_passed_limit(tm)) | |
|
11521
578df034735d
patch 8.0.0643: when a pattern search is slow Vim becomes unusable
Christian Brabandt <cb@256bit.org>
parents:
11482
diff
changeset
|
3903 { |
|
578df034735d
patch 8.0.0643: when a pattern search is slow Vim becomes unusable
Christian Brabandt <cb@256bit.org>
parents:
11482
diff
changeset
|
3904 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
|
3905 *timed_out = TRUE; |
| 1521 | 3906 break; |
|
11521
578df034735d
patch 8.0.0643: when a pattern search is slow Vim becomes unusable
Christian Brabandt <cb@256bit.org>
parents:
11482
diff
changeset
|
3907 } |
| 1521 | 3908 } |
| 3909 #endif | |
| 7 | 3910 } |
| 3911 } | |
| 3912 | |
| 3913 theend: | |
| 1520 | 3914 /* Free "reg_tofree" when it's a bit big. |
| 3915 * Free regstack and backpos if they are bigger than their initial size. */ | |
| 3916 if (reg_tofreelen > 400) | |
|
13244
ac42c4b11dbc
patch 8.0.1496: clearing a pointer takes two lines
Christian Brabandt <cb@256bit.org>
parents:
12752
diff
changeset
|
3917 VIM_CLEAR(reg_tofree); |
| 1520 | 3918 if (regstack.ga_maxlen > REGSTACK_INITIAL) |
| 3919 ga_clear(®stack); | |
| 3920 if (backpos.ga_maxlen > BACKPOS_INITIAL) | |
| 3921 ga_clear(&backpos); | |
| 270 | 3922 |
| 7 | 3923 return retval; |
| 3924 } | |
| 3925 | |
| 3926 #ifdef FEAT_SYN_HL | |
| 3927 /* | |
| 3928 * Create a new extmatch and mark it as referenced once. | |
| 3929 */ | |
| 3930 static reg_extmatch_T * | |
|
7833
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Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
3931 make_extmatch(void) |
| 7 | 3932 { |
| 3933 reg_extmatch_T *em; | |
| 3934 | |
| 3935 em = (reg_extmatch_T *)alloc_clear((unsigned)sizeof(reg_extmatch_T)); | |
| 3936 if (em != NULL) | |
| 3937 em->refcnt = 1; | |
| 3938 return em; | |
| 3939 } | |
| 3940 | |
| 3941 /* | |
| 3942 * Add a reference to an extmatch. | |
| 3943 */ | |
| 3944 reg_extmatch_T * | |
|
7833
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Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
3945 ref_extmatch(reg_extmatch_T *em) |
| 7 | 3946 { |
| 3947 if (em != NULL) | |
| 3948 em->refcnt++; | |
| 3949 return em; | |
| 3950 } | |
| 3951 | |
| 3952 /* | |
| 3953 * Remove a reference to an extmatch. If there are no references left, free | |
| 3954 * the info. | |
| 3955 */ | |
| 3956 void | |
|
7833
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
3957 unref_extmatch(reg_extmatch_T *em) |
| 7 | 3958 { |
| 3959 int i; | |
| 3960 | |
| 3961 if (em != NULL && --em->refcnt <= 0) | |
| 3962 { | |
| 3963 for (i = 0; i < NSUBEXP; ++i) | |
| 3964 vim_free(em->matches[i]); | |
| 3965 vim_free(em); | |
| 3966 } | |
| 3967 } | |
| 3968 #endif | |
| 3969 | |
| 3970 /* | |
|
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Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
3971 * regtry - try match of "prog" with at rex.line["col"]. |
| 7 | 3972 * Returns 0 for failure, number of lines contained in the match otherwise. |
| 3973 */ | |
| 3974 static long | |
|
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Christian Brabandt <cb@256bit.org>
parents:
11525
diff
changeset
|
3975 regtry( |
|
ac20f71e8aa4
patch 8.0.0646: the hlsearch test fails on fast systems
Christian Brabandt <cb@256bit.org>
parents:
11525
diff
changeset
|
3976 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
|
3977 colnr_T col, |
|
ac20f71e8aa4
patch 8.0.0646: the hlsearch test fails on fast systems
Christian Brabandt <cb@256bit.org>
parents:
11525
diff
changeset
|
3978 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
|
3979 int *timed_out) /* flag set on timeout or NULL */ |
| 7 | 3980 { |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
3981 rex.input = rex.line + col; |
|
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
3982 rex.need_clear_subexpr = TRUE; |
| 7 | 3983 #ifdef FEAT_SYN_HL |
|
14354
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Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
3984 // 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
|
3985 rex.need_clear_zsubexpr = (prog->reghasz == REX_SET); |
| 7 | 3986 #endif |
| 3987 | |
|
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Christian Brabandt <cb@256bit.org>
parents:
11525
diff
changeset
|
3988 if (regmatch(prog->program + 1, tm, timed_out) == 0) |
| 189 | 3989 return 0; |
| 3990 | |
| 3991 cleanup_subexpr(); | |
| 3992 if (REG_MULTI) | |
| 7 | 3993 { |
|
10245
d76ccdacb41e
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Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
3994 if (rex.reg_startpos[0].lnum < 0) |
| 7 | 3995 { |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
3996 rex.reg_startpos[0].lnum = 0; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
3997 rex.reg_startpos[0].col = col; |
| 189 | 3998 } |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
3999 if (rex.reg_endpos[0].lnum < 0) |
| 189 | 4000 { |
|
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
|
4001 rex.reg_endpos[0].lnum = rex.lnum; |
|
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14169
diff
changeset
|
4002 rex.reg_endpos[0].col = (int)(rex.input - rex.line); |
| 7 | 4003 } |
| 4004 else | |
| 189 | 4005 /* Use line number of "\ze". */ |
|
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diff
changeset
|
4006 rex.lnum = rex.reg_endpos[0].lnum; |
| 189 | 4007 } |
| 4008 else | |
| 4009 { | |
|
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Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
4010 if (rex.reg_startp[0] == NULL) |
|
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diff
changeset
|
4011 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
|
4012 if (rex.reg_endp[0] == NULL) |
|
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parents:
14169
diff
changeset
|
4013 rex.reg_endp[0] = rex.input; |
| 189 | 4014 } |
| 7 | 4015 #ifdef FEAT_SYN_HL |
| 189 | 4016 /* Package any found \z(...\) matches for export. Default is none. */ |
| 4017 unref_extmatch(re_extmatch_out); | |
| 4018 re_extmatch_out = NULL; | |
| 4019 | |
| 4020 if (prog->reghasz == REX_SET) | |
| 4021 { | |
| 4022 int i; | |
| 4023 | |
| 4024 cleanup_zsubexpr(); | |
| 4025 re_extmatch_out = make_extmatch(); | |
| 4026 for (i = 0; i < NSUBEXP; i++) | |
| 7 | 4027 { |
| 189 | 4028 if (REG_MULTI) |
| 7 | 4029 { |
| 189 | 4030 /* Only accept single line matches. */ |
| 4031 if (reg_startzpos[i].lnum >= 0 | |
| 5820 | 4032 && reg_endzpos[i].lnum == reg_startzpos[i].lnum |
| 4033 && reg_endzpos[i].col >= reg_startzpos[i].col) | |
| 189 | 4034 re_extmatch_out->matches[i] = |
| 4035 vim_strnsave(reg_getline(reg_startzpos[i].lnum) | |
| 7 | 4036 + reg_startzpos[i].col, |
| 189 | 4037 reg_endzpos[i].col - reg_startzpos[i].col); |
| 4038 } | |
| 4039 else | |
| 4040 { | |
| 4041 if (reg_startzp[i] != NULL && reg_endzp[i] != NULL) | |
| 4042 re_extmatch_out->matches[i] = | |
| 7 | 4043 vim_strnsave(reg_startzp[i], |
| 189 | 4044 (int)(reg_endzp[i] - reg_startzp[i])); |
| 7 | 4045 } |
| 4046 } | |
| 189 | 4047 } |
| 7 | 4048 #endif |
|
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changeset
|
4049 return 1 + rex.lnum; |
| 7 | 4050 } |
| 4051 | |
| 4052 /* | |
| 4053 * Get class of previous character. | |
| 4054 */ | |
| 4055 static int | |
|
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7807
diff
changeset
|
4056 reg_prev_class(void) |
| 7 | 4057 { |
|
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changeset
|
4058 if (rex.input > rex.line) |
|
ffd834f893aa
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Christian Brabandt <cb@256bit.org>
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14169
diff
changeset
|
4059 return mb_get_class_buf(rex.input - 1 |
|
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diff
changeset
|
4060 - (*mb_head_off)(rex.line, rex.input - 1), rex.reg_buf); |
| 7 | 4061 return -1; |
| 4062 } | |
| 5735 | 4063 |
|
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changeset
|
4064 /* |
|
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changeset
|
4065 * Return TRUE if the current rex.input position matches the Visual area. |
|
4730
749e2b2755d5
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diff
changeset
|
4066 */ |
|
749e2b2755d5
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diff
changeset
|
4067 static int |
|
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Christian Brabandt <cb@256bit.org>
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7807
diff
changeset
|
4068 reg_match_visual(void) |
|
4730
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changeset
|
4069 { |
|
749e2b2755d5
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Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4070 pos_T top, bot; |
|
749e2b2755d5
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parents:
4720
diff
changeset
|
4071 linenr_T lnum; |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4072 colnr_T col; |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
4073 win_T *wp = rex.reg_win == NULL ? curwin : rex.reg_win; |
|
4730
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4074 int mode; |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4075 colnr_T start, end; |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4076 colnr_T start2, end2; |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4077 colnr_T cols; |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4078 |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4079 /* Check if the buffer is the current buffer. */ |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
4080 if (rex.reg_buf != curbuf || VIsual.lnum == 0) |
|
4730
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4081 return FALSE; |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4082 |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4083 if (VIsual_active) |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4084 { |
|
11121
778c10516955
patch 8.0.0448: some macros are in lower case
Christian Brabandt <cb@256bit.org>
parents:
10359
diff
changeset
|
4085 if (LT_POS(VIsual, wp->w_cursor)) |
|
4730
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4086 { |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4087 top = VIsual; |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4088 bot = wp->w_cursor; |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4089 } |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4090 else |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4091 { |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4092 top = wp->w_cursor; |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4093 bot = VIsual; |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4094 } |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4095 mode = VIsual_mode; |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4096 } |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4097 else |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4098 { |
|
11121
778c10516955
patch 8.0.0448: some macros are in lower case
Christian Brabandt <cb@256bit.org>
parents:
10359
diff
changeset
|
4099 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
|
4100 { |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4101 top = curbuf->b_visual.vi_start; |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4102 bot = curbuf->b_visual.vi_end; |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4103 } |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4104 else |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4105 { |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4106 top = curbuf->b_visual.vi_end; |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4107 bot = curbuf->b_visual.vi_start; |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4108 } |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4109 mode = curbuf->b_visual.vi_mode; |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4110 } |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
4111 lnum = rex.lnum + rex.reg_firstlnum; |
|
4730
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4112 if (lnum < top.lnum || lnum > bot.lnum) |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4113 return FALSE; |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4114 |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4115 if (mode == 'v') |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4116 { |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
4117 col = (colnr_T)(rex.input - rex.line); |
|
4730
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4118 if ((lnum == top.lnum && col < top.col) |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4119 || (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
|
4120 return FALSE; |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4121 } |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4122 else if (mode == Ctrl_V) |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4123 { |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4124 getvvcol(wp, &top, &start, NULL, &end); |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4125 getvvcol(wp, &bot, &start2, NULL, &end2); |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4126 if (start2 < start) |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4127 start = start2; |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4128 if (end2 > end) |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4129 end = end2; |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4130 if (top.col == MAXCOL || bot.col == MAXCOL) |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4131 end = MAXCOL; |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
4132 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
|
4133 if (cols < start || cols > end - (*p_sel == 'e')) |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4134 return FALSE; |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4135 } |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4136 return TRUE; |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4137 } |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4138 |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
4139 #define ADVANCE_REGINPUT() MB_PTR_ADV(rex.input) |
| 7 | 4140 |
| 4141 /* | |
| 4142 * The arguments from BRACE_LIMITS are stored here. They are actually local | |
| 4143 * to regmatch(), but they are here to reduce the amount of stack space used | |
| 4144 * (it can be called recursively many times). | |
| 4145 */ | |
| 4146 static long bl_minval; | |
| 4147 static long bl_maxval; | |
| 4148 | |
| 4149 /* | |
| 4150 * regmatch - main matching routine | |
| 4151 * | |
| 180 | 4152 * Conceptually the strategy is simple: Check to see whether the current node |
| 4153 * matches, push an item onto the regstack and loop to see whether the rest | |
| 4154 * matches, and then act accordingly. In practice we make some effort to | |
| 4155 * avoid using the regstack, in particular by going through "ordinary" nodes | |
| 4156 * (that don't need to know whether the rest of the match failed) by a nested | |
| 4157 * loop. | |
| 7 | 4158 * |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
4159 * Returns TRUE when there is a match. Leaves rex.input and rex.lnum just after |
| 7 | 4160 * 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
|
4161 * Returns FALSE when there is no match. Leaves rex.input and rex.lnum in an |
| 7 | 4162 * undefined state! |
| 4163 */ | |
| 4164 static int | |
|
7833
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
4165 regmatch( |
|
11527
ac20f71e8aa4
patch 8.0.0646: the hlsearch test fails on fast systems
Christian Brabandt <cb@256bit.org>
parents:
11525
diff
changeset
|
4166 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
|
4167 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
|
4168 int *timed_out UNUSED) /* flag set on timeout or NULL */ |
| 7 | 4169 { |
| 180 | 4170 char_u *next; /* Next node. */ |
| 4171 int op; | |
| 4172 int c; | |
| 4173 regitem_T *rp; | |
| 4174 int no; | |
| 4175 int status; /* one of the RA_ values: */ | |
| 4176 #define RA_FAIL 1 /* something failed, abort */ | |
| 4177 #define RA_CONT 2 /* continue in inner loop */ | |
| 4178 #define RA_BREAK 3 /* break inner loop */ | |
| 4179 #define RA_MATCH 4 /* successful match */ | |
| 4180 #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
|
4181 #ifdef FEAT_RELTIME |
|
ac20f71e8aa4
patch 8.0.0646: the hlsearch test fails on fast systems
Christian Brabandt <cb@256bit.org>
parents:
11525
diff
changeset
|
4182 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
|
4183 #endif |
| 270 | 4184 |
| 1520 | 4185 /* Make "regstack" and "backpos" empty. They are allocated and freed in |
| 4444 | 4186 * bt_regexec_both() to reduce malloc()/free() calls. */ |
| 270 | 4187 regstack.ga_len = 0; |
| 4188 backpos.ga_len = 0; | |
| 233 | 4189 |
| 180 | 4190 /* |
| 233 | 4191 * Repeat until "regstack" is empty. |
| 180 | 4192 */ |
| 4193 for (;;) | |
| 4194 { | |
| 5310 | 4195 /* Some patterns may take a long time to match, e.g., "\([a-z]\+\)\+Q". |
| 4196 * Allow interrupting them with CTRL-C. */ | |
| 7 | 4197 fast_breakcheck(); |
| 4198 | |
| 4199 #ifdef DEBUG | |
| 4200 if (scan != NULL && regnarrate) | |
| 4201 { | |
| 4444 | 4202 mch_errmsg((char *)regprop(scan)); |
| 7 | 4203 mch_errmsg("(\n"); |
| 4204 } | |
| 4205 #endif | |
| 180 | 4206 |
| 4207 /* | |
| 233 | 4208 * Repeat for items that can be matched sequentially, without using the |
| 180 | 4209 * regstack. |
| 4210 */ | |
| 4211 for (;;) | |
| 7 | 4212 { |
| 180 | 4213 if (got_int || scan == NULL) |
| 4214 { | |
| 4215 status = RA_FAIL; | |
| 4216 break; | |
| 4217 } | |
|
11527
ac20f71e8aa4
patch 8.0.0646: the hlsearch test fails on fast systems
Christian Brabandt <cb@256bit.org>
parents:
11525
diff
changeset
|
4218 #ifdef FEAT_RELTIME |
|
ac20f71e8aa4
patch 8.0.0646: the hlsearch test fails on fast systems
Christian Brabandt <cb@256bit.org>
parents:
11525
diff
changeset
|
4219 /* 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
|
4220 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
|
4221 { |
|
ac20f71e8aa4
patch 8.0.0646: the hlsearch test fails on fast systems
Christian Brabandt <cb@256bit.org>
parents:
11525
diff
changeset
|
4222 tm_count = 0; |
|
ac20f71e8aa4
patch 8.0.0646: the hlsearch test fails on fast systems
Christian Brabandt <cb@256bit.org>
parents:
11525
diff
changeset
|
4223 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
|
4224 { |
|
ac20f71e8aa4
patch 8.0.0646: the hlsearch test fails on fast systems
Christian Brabandt <cb@256bit.org>
parents:
11525
diff
changeset
|
4225 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
|
4226 *timed_out = TRUE; |
|
ac20f71e8aa4
patch 8.0.0646: the hlsearch test fails on fast systems
Christian Brabandt <cb@256bit.org>
parents:
11525
diff
changeset
|
4227 status = RA_FAIL; |
|
ac20f71e8aa4
patch 8.0.0646: the hlsearch test fails on fast systems
Christian Brabandt <cb@256bit.org>
parents:
11525
diff
changeset
|
4228 break; |
|
ac20f71e8aa4
patch 8.0.0646: the hlsearch test fails on fast systems
Christian Brabandt <cb@256bit.org>
parents:
11525
diff
changeset
|
4229 } |
|
ac20f71e8aa4
patch 8.0.0646: the hlsearch test fails on fast systems
Christian Brabandt <cb@256bit.org>
parents:
11525
diff
changeset
|
4230 } |
|
ac20f71e8aa4
patch 8.0.0646: the hlsearch test fails on fast systems
Christian Brabandt <cb@256bit.org>
parents:
11525
diff
changeset
|
4231 #endif |
| 180 | 4232 status = RA_CONT; |
| 4233 | |
| 7 | 4234 #ifdef DEBUG |
| 4235 if (regnarrate) | |
| 4236 { | |
| 4444 | 4237 mch_errmsg((char *)regprop(scan)); |
| 7 | 4238 mch_errmsg("...\n"); |
| 4239 # ifdef FEAT_SYN_HL | |
| 4240 if (re_extmatch_in != NULL) | |
| 4241 { | |
| 4242 int i; | |
| 4243 | |
| 4244 mch_errmsg(_("External submatches:\n")); | |
| 4245 for (i = 0; i < NSUBEXP; i++) | |
| 4246 { | |
| 4247 mch_errmsg(" \""); | |
| 4248 if (re_extmatch_in->matches[i] != NULL) | |
| 4444 | 4249 mch_errmsg((char *)re_extmatch_in->matches[i]); |
| 7 | 4250 mch_errmsg("\"\n"); |
| 4251 } | |
| 4252 } | |
| 4253 # endif | |
| 4254 } | |
| 4255 #endif | |
| 4256 next = regnext(scan); | |
| 4257 | |
| 4258 op = OP(scan); | |
| 4259 /* 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
|
4260 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
|
4261 && *rex.input == NUL && rex.lnum <= rex.reg_maxline) |
| 7 | 4262 { |
| 4263 reg_nextline(); | |
| 4264 } | |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
4265 else if (rex.reg_line_lbr && WITH_NL(op) && *rex.input == '\n') |
| 7 | 4266 { |
| 4267 ADVANCE_REGINPUT(); | |
| 4268 } | |
| 4269 else | |
| 4270 { | |
| 4271 if (WITH_NL(op)) | |
| 180 | 4272 op -= ADD_NL; |
| 7 | 4273 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
|
4274 c = (*mb_ptr2char)(rex.input); |
| 7 | 4275 else |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
4276 c = *rex.input; |
| 7 | 4277 switch (op) |
| 4278 { | |
| 4279 case BOL: | |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
4280 if (rex.input != rex.line) |
| 180 | 4281 status = RA_NOMATCH; |
| 7 | 4282 break; |
| 4283 | |
| 4284 case EOL: | |
| 4285 if (c != NUL) | |
| 180 | 4286 status = RA_NOMATCH; |
| 7 | 4287 break; |
| 4288 | |
| 4289 case RE_BOF: | |
| 1458 | 4290 /* We're not at the beginning of the file when below the first |
| 4291 * line where we started, not at the start of the line or we | |
| 4292 * 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
|
4293 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
|
4294 || (REG_MULTI && rex.reg_firstlnum > 1)) |
| 180 | 4295 status = RA_NOMATCH; |
| 7 | 4296 break; |
| 4297 | |
| 4298 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
|
4299 if (rex.lnum != rex.reg_maxline || c != NUL) |
| 180 | 4300 status = RA_NOMATCH; |
| 7 | 4301 break; |
| 4302 | |
| 4303 case CURSOR: | |
| 4304 /* 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
|
4305 * 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
|
4306 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
|
4307 || (rex.lnum + rex.reg_firstlnum |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
4308 != 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
|
4309 || ((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
|
4310 != rex.reg_win->w_cursor.col)) |
| 180 | 4311 status = RA_NOMATCH; |
| 7 | 4312 break; |
| 4313 | |
| 639 | 4314 case RE_MARK: |
|
4732
0798b096bab3
updated for version 7.3.1113
Bram Moolenaar <bram@vim.org>
parents:
4730
diff
changeset
|
4315 /* Compare the mark position to the match position. */ |
| 639 | 4316 { |
| 4317 int mark = OPERAND(scan)[0]; | |
| 4318 int cmp = OPERAND(scan)[1]; | |
| 4319 pos_T *pos; | |
| 4320 | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
4321 pos = getmark_buf(rex.reg_buf, mark, FALSE); |
| 1148 | 4322 if (pos == NULL /* mark doesn't exist */ |
|
4732
0798b096bab3
updated for version 7.3.1113
Bram Moolenaar <bram@vim.org>
parents:
4730
diff
changeset
|
4323 || 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
|
4324 || (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
|
4325 ? (pos->col == (colnr_T)(rex.input - rex.line) |
| 639 | 4326 ? (cmp == '<' || cmp == '>') |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
4327 : (pos->col < (colnr_T)(rex.input - rex.line) |
| 639 | 4328 ? cmp != '>' |
| 4329 : cmp != '<')) | |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
4330 : (pos->lnum < rex.lnum + rex.reg_firstlnum |
| 639 | 4331 ? cmp != '>' |
| 4332 : cmp != '<'))) | |
| 4333 status = RA_NOMATCH; | |
| 4334 } | |
| 4335 break; | |
| 4336 | |
| 4337 case RE_VISUAL: | |
|
4730
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4338 if (!reg_match_visual()) |
| 639 | 4339 status = RA_NOMATCH; |
| 4340 break; | |
| 4341 | |
| 7 | 4342 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
|
4343 if (!REG_MULTI || !re_num_cmp((long_u)(rex.lnum + rex.reg_firstlnum), |
| 7 | 4344 scan)) |
| 180 | 4345 status = RA_NOMATCH; |
| 7 | 4346 break; |
| 4347 | |
| 4348 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
|
4349 if (!re_num_cmp((long_u)(rex.input - rex.line) + 1, scan)) |
| 180 | 4350 status = RA_NOMATCH; |
| 7 | 4351 break; |
| 4352 | |
| 4353 case RE_VCOL: | |
| 4354 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
|
4355 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
|
4356 rex.line, (colnr_T)(rex.input - rex.line)) + 1, scan)) |
| 180 | 4357 status = RA_NOMATCH; |
| 7 | 4358 break; |
| 4359 | |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
4360 case BOW: /* \<word; rex.input points to w */ |
| 7 | 4361 if (c == NUL) /* Can't match at end of line */ |
| 180 | 4362 status = RA_NOMATCH; |
| 4363 else if (has_mbyte) | |
| 7 | 4364 { |
| 4365 int this_class; | |
| 4366 | |
| 4367 /* 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
|
4368 this_class = mb_get_class_buf(rex.input, rex.reg_buf); |
| 7 | 4369 if (this_class <= 1) |
| 180 | 4370 status = RA_NOMATCH; /* not on a word at all */ |
| 4371 else if (reg_prev_class() == this_class) | |
| 4372 status = RA_NOMATCH; /* previous char is in same word */ | |
| 7 | 4373 } |
| 4374 else | |
| 4375 { | |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
4376 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
|
4377 && vim_iswordc_buf(rex.input[-1], rex.reg_buf))) |
| 180 | 4378 status = RA_NOMATCH; |
| 7 | 4379 } |
| 4380 break; | |
| 4381 | |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
4382 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
|
4383 if (rex.input == rex.line) /* Can't match at start of line */ |
| 180 | 4384 status = RA_NOMATCH; |
| 4385 else if (has_mbyte) | |
| 7 | 4386 { |
| 4387 int this_class, prev_class; | |
| 4388 | |
| 4389 /* 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
|
4390 this_class = mb_get_class_buf(rex.input, rex.reg_buf); |
| 7 | 4391 prev_class = reg_prev_class(); |
| 180 | 4392 if (this_class == prev_class |
| 4393 || prev_class == 0 || prev_class == 1) | |
| 4394 status = RA_NOMATCH; | |
| 7 | 4395 } |
| 4396 else | |
| 4397 { | |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
4398 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
|
4399 || (rex.input[0] != NUL |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
4400 && vim_iswordc_buf(c, rex.reg_buf))) |
| 180 | 4401 status = RA_NOMATCH; |
| 7 | 4402 } |
| 4403 break; /* Matched with EOW */ | |
| 4404 | |
| 4405 case ANY: | |
| 4084 | 4406 /* ANY does not match new lines. */ |
| 7 | 4407 if (c == NUL) |
| 180 | 4408 status = RA_NOMATCH; |
| 4409 else | |
| 4410 ADVANCE_REGINPUT(); | |
| 7 | 4411 break; |
| 4412 | |
| 4413 case IDENT: | |
| 4414 if (!vim_isIDc(c)) | |
| 180 | 4415 status = RA_NOMATCH; |
| 4416 else | |
| 4417 ADVANCE_REGINPUT(); | |
| 7 | 4418 break; |
| 4419 | |
| 4420 case SIDENT: | |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
4421 if (VIM_ISDIGIT(*rex.input) || !vim_isIDc(c)) |
| 180 | 4422 status = RA_NOMATCH; |
| 4423 else | |
| 4424 ADVANCE_REGINPUT(); | |
| 7 | 4425 break; |
| 4426 | |
| 4427 case KWORD: | |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
4428 if (!vim_iswordp_buf(rex.input, rex.reg_buf)) |
| 180 | 4429 status = RA_NOMATCH; |
| 4430 else | |
| 4431 ADVANCE_REGINPUT(); | |
| 7 | 4432 break; |
| 4433 | |
| 4434 case SKWORD: | |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
4435 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
|
4436 || !vim_iswordp_buf(rex.input, rex.reg_buf)) |
| 180 | 4437 status = RA_NOMATCH; |
| 4438 else | |
| 4439 ADVANCE_REGINPUT(); | |
| 7 | 4440 break; |
| 4441 | |
| 4442 case FNAME: | |
| 4443 if (!vim_isfilec(c)) | |
| 180 | 4444 status = RA_NOMATCH; |
| 4445 else | |
| 4446 ADVANCE_REGINPUT(); | |
| 7 | 4447 break; |
| 4448 | |
| 4449 case SFNAME: | |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
4450 if (VIM_ISDIGIT(*rex.input) || !vim_isfilec(c)) |
| 180 | 4451 status = RA_NOMATCH; |
| 4452 else | |
| 4453 ADVANCE_REGINPUT(); | |
| 7 | 4454 break; |
| 4455 | |
| 4456 case PRINT: | |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
4457 if (!vim_isprintc(PTR2CHAR(rex.input))) |
| 180 | 4458 status = RA_NOMATCH; |
| 4459 else | |
| 4460 ADVANCE_REGINPUT(); | |
| 7 | 4461 break; |
| 4462 | |
| 4463 case SPRINT: | |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
4464 if (VIM_ISDIGIT(*rex.input) || !vim_isprintc(PTR2CHAR(rex.input))) |
| 180 | 4465 status = RA_NOMATCH; |
| 4466 else | |
| 4467 ADVANCE_REGINPUT(); | |
| 7 | 4468 break; |
| 4469 | |
| 4470 case WHITE: | |
|
11129
f4ea50924c6d
patch 8.0.0452: some macros are in lower case
Christian Brabandt <cb@256bit.org>
parents:
11127
diff
changeset
|
4471 if (!VIM_ISWHITE(c)) |
| 180 | 4472 status = RA_NOMATCH; |
| 4473 else | |
| 4474 ADVANCE_REGINPUT(); | |
| 7 | 4475 break; |
| 4476 | |
| 4477 case NWHITE: | |
|
11129
f4ea50924c6d
patch 8.0.0452: some macros are in lower case
Christian Brabandt <cb@256bit.org>
parents:
11127
diff
changeset
|
4478 if (c == NUL || VIM_ISWHITE(c)) |
| 180 | 4479 status = RA_NOMATCH; |
| 4480 else | |
| 4481 ADVANCE_REGINPUT(); | |
| 7 | 4482 break; |
| 4483 | |
| 4484 case DIGIT: | |
| 4485 if (!ri_digit(c)) | |
| 180 | 4486 status = RA_NOMATCH; |
| 4487 else | |
| 4488 ADVANCE_REGINPUT(); | |
| 7 | 4489 break; |
| 4490 | |
| 4491 case NDIGIT: | |
| 4492 if (c == NUL || ri_digit(c)) | |
| 180 | 4493 status = RA_NOMATCH; |
| 4494 else | |
| 4495 ADVANCE_REGINPUT(); | |
| 7 | 4496 break; |
| 4497 | |
| 4498 case HEX: | |
| 4499 if (!ri_hex(c)) | |
| 180 | 4500 status = RA_NOMATCH; |
| 4501 else | |
| 4502 ADVANCE_REGINPUT(); | |
| 7 | 4503 break; |
| 4504 | |
| 4505 case NHEX: | |
| 4506 if (c == NUL || ri_hex(c)) | |
| 180 | 4507 status = RA_NOMATCH; |
| 4508 else | |
| 4509 ADVANCE_REGINPUT(); | |
| 7 | 4510 break; |
| 4511 | |
| 4512 case OCTAL: | |
| 4513 if (!ri_octal(c)) | |
| 180 | 4514 status = RA_NOMATCH; |
| 4515 else | |
| 4516 ADVANCE_REGINPUT(); | |
| 7 | 4517 break; |
| 4518 | |
| 4519 case NOCTAL: | |
| 4520 if (c == NUL || ri_octal(c)) | |
| 180 | 4521 status = RA_NOMATCH; |
| 4522 else | |
| 4523 ADVANCE_REGINPUT(); | |
| 7 | 4524 break; |
| 4525 | |
| 4526 case WORD: | |
| 4527 if (!ri_word(c)) | |
| 180 | 4528 status = RA_NOMATCH; |
| 4529 else | |
| 4530 ADVANCE_REGINPUT(); | |
| 7 | 4531 break; |
| 4532 | |
| 4533 case NWORD: | |
| 4534 if (c == NUL || ri_word(c)) | |
| 180 | 4535 status = RA_NOMATCH; |
| 4536 else | |
| 4537 ADVANCE_REGINPUT(); | |
| 7 | 4538 break; |
| 4539 | |
| 4540 case HEAD: | |
| 4541 if (!ri_head(c)) | |
| 180 | 4542 status = RA_NOMATCH; |
| 4543 else | |
| 4544 ADVANCE_REGINPUT(); | |
| 7 | 4545 break; |
| 4546 | |
| 4547 case NHEAD: | |
| 4548 if (c == NUL || ri_head(c)) | |
| 180 | 4549 status = RA_NOMATCH; |
| 4550 else | |
| 4551 ADVANCE_REGINPUT(); | |
| 7 | 4552 break; |
| 4553 | |
| 4554 case ALPHA: | |
| 4555 if (!ri_alpha(c)) | |
| 180 | 4556 status = RA_NOMATCH; |
| 4557 else | |
| 4558 ADVANCE_REGINPUT(); | |
| 7 | 4559 break; |
| 4560 | |
| 4561 case NALPHA: | |
| 4562 if (c == NUL || ri_alpha(c)) | |
| 180 | 4563 status = RA_NOMATCH; |
| 4564 else | |
| 4565 ADVANCE_REGINPUT(); | |
| 7 | 4566 break; |
| 4567 | |
| 4568 case LOWER: | |
| 4569 if (!ri_lower(c)) | |
| 180 | 4570 status = RA_NOMATCH; |
| 4571 else | |
| 4572 ADVANCE_REGINPUT(); | |
| 7 | 4573 break; |
| 4574 | |
| 4575 case NLOWER: | |
| 4576 if (c == NUL || ri_lower(c)) | |
| 180 | 4577 status = RA_NOMATCH; |
| 4578 else | |
| 4579 ADVANCE_REGINPUT(); | |
| 7 | 4580 break; |
| 4581 | |
| 4582 case UPPER: | |
| 4583 if (!ri_upper(c)) | |
| 180 | 4584 status = RA_NOMATCH; |
| 4585 else | |
| 4586 ADVANCE_REGINPUT(); | |
| 7 | 4587 break; |
| 4588 | |
| 4589 case NUPPER: | |
| 4590 if (c == NUL || ri_upper(c)) | |
| 180 | 4591 status = RA_NOMATCH; |
| 4592 else | |
| 4593 ADVANCE_REGINPUT(); | |
| 7 | 4594 break; |
| 4595 | |
| 4596 case EXACTLY: | |
| 4597 { | |
| 4598 int len; | |
| 4599 char_u *opnd; | |
| 4600 | |
| 4601 opnd = OPERAND(scan); | |
| 4602 /* 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
|
4603 if (*opnd != *rex.input |
|
15603
639b8318472c
patch 8.1.0809: too many #ifdefs
Bram Moolenaar <Bram@vim.org>
parents:
15555
diff
changeset
|
4604 && (!rex.reg_ic |
|
639b8318472c
patch 8.1.0809: too many #ifdefs
Bram Moolenaar <Bram@vim.org>
parents:
15555
diff
changeset
|
4605 || (!enc_utf8 |
|
639b8318472c
patch 8.1.0809: too many #ifdefs
Bram Moolenaar <Bram@vim.org>
parents:
15555
diff
changeset
|
4606 && MB_TOLOWER(*opnd) != MB_TOLOWER(*rex.input)))) |
| 180 | 4607 status = RA_NOMATCH; |
| 4608 else if (*opnd == NUL) | |
| 7 | 4609 { |
| 4610 /* match empty string always works; happens when "~" is | |
| 4611 * empty. */ | |
| 4612 } | |
| 5899 | 4613 else |
| 4614 { | |
|
15603
639b8318472c
patch 8.1.0809: too many #ifdefs
Bram Moolenaar <Bram@vim.org>
parents:
15555
diff
changeset
|
4615 if (opnd[1] == NUL && !(enc_utf8 && rex.reg_ic)) |
| 5899 | 4616 { |
| 4617 len = 1; /* matched a single byte above */ | |
| 4618 } | |
| 4619 else | |
| 4620 { | |
| 4621 /* Need to match first byte again for multi-byte. */ | |
| 4622 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
|
4623 if (cstrncmp(opnd, rex.input, &len) != 0) |
| 5899 | 4624 status = RA_NOMATCH; |
| 4625 } | |
| 5901 | 4626 /* Check for following composing character, unless %C |
| 4627 * follows (skips over all composing chars). */ | |
| 5899 | 4628 if (status != RA_NOMATCH |
| 4629 && enc_utf8 | |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
4630 && 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
|
4631 && !rex.reg_icombine |
| 5901 | 4632 && OP(next) != RE_COMPOSING) |
| 7 | 4633 { |
| 4634 /* raaron: This code makes a composing character get | |
| 4635 * ignored, which is the correct behavior (sometimes) | |
| 4636 * for voweled Hebrew texts. */ | |
| 5899 | 4637 status = RA_NOMATCH; |
| 7 | 4638 } |
| 5899 | 4639 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
|
4640 rex.input += len; |
| 7 | 4641 } |
| 4642 } | |
| 4643 break; | |
| 4644 | |
| 4645 case ANYOF: | |
| 4646 case ANYBUT: | |
| 4647 if (c == NUL) | |
| 180 | 4648 status = RA_NOMATCH; |
| 4649 else if ((cstrchr(OPERAND(scan), c) == NULL) == (op == ANYOF)) | |
| 4650 status = RA_NOMATCH; | |
| 4651 else | |
| 4652 ADVANCE_REGINPUT(); | |
| 7 | 4653 break; |
| 4654 | |
| 4655 case MULTIBYTECODE: | |
| 4656 if (has_mbyte) | |
| 4657 { | |
| 4658 int i, len; | |
| 4659 char_u *opnd; | |
| 944 | 4660 int opndc = 0, inpc; |
| 7 | 4661 |
| 4662 opnd = OPERAND(scan); | |
| 4663 /* Safety check (just in case 'encoding' was changed since | |
| 4664 * compiling the program). */ | |
| 474 | 4665 if ((len = (*mb_ptr2len)(opnd)) < 2) |
| 180 | 4666 { |
| 4667 status = RA_NOMATCH; | |
| 4668 break; | |
| 4669 } | |
| 714 | 4670 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
|
4671 opndc = utf_ptr2char(opnd); |
| 714 | 4672 if (enc_utf8 && utf_iscomposing(opndc)) |
| 4673 { | |
| 4674 /* When only a composing char is given match at any | |
| 4675 * position where that composing char appears. */ | |
| 4676 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
|
4677 for (i = 0; rex.input[i] != NUL; |
|
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
4678 i += utf_ptr2len(rex.input + i)) |
| 180 | 4679 { |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
4680 inpc = utf_ptr2char(rex.input + i); |
| 714 | 4681 if (!utf_iscomposing(inpc)) |
| 4682 { | |
| 4683 if (i > 0) | |
| 4684 break; | |
| 4685 } | |
| 4686 else if (opndc == inpc) | |
| 4687 { | |
| 4688 /* 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
|
4689 len = i + utfc_ptr2len(rex.input + i); |
| 714 | 4690 status = RA_MATCH; |
| 4691 break; | |
| 4692 } | |
| 180 | 4693 } |
| 714 | 4694 } |
| 4695 else | |
| 4696 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
|
4697 if (opnd[i] != rex.input[i]) |
| 714 | 4698 { |
| 4699 status = RA_NOMATCH; | |
| 4700 break; | |
| 4701 } | |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
4702 rex.input += len; |
| 7 | 4703 } |
| 4704 else | |
| 180 | 4705 status = RA_NOMATCH; |
| 7 | 4706 break; |
| 5901 | 4707 case RE_COMPOSING: |
| 4708 if (enc_utf8) | |
| 4709 { | |
| 4710 /* 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
|
4711 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
|
4712 MB_CPTR_ADV(rex.input); |
| 5901 | 4713 } |
| 4714 break; | |
| 7 | 4715 |
| 4716 case NOTHING: | |
| 4717 break; | |
| 4718 | |
| 4719 case BACK: | |
| 233 | 4720 { |
| 4721 int i; | |
| 4722 backpos_T *bp; | |
| 4723 | |
| 4724 /* | |
| 4725 * When we run into BACK we need to check if we don't keep | |
| 4726 * looping without matching any input. The second and later | |
| 4727 * times a BACK is encountered it fails if the input is still | |
| 4728 * at the same position as the previous time. | |
| 4729 * The positions are stored in "backpos" and found by the | |
| 4730 * current value of "scan", the position in the RE program. | |
| 4731 */ | |
| 4732 bp = (backpos_T *)backpos.ga_data; | |
| 4733 for (i = 0; i < backpos.ga_len; ++i) | |
| 4734 if (bp[i].bp_scan == scan) | |
| 4735 break; | |
| 4736 if (i == backpos.ga_len) | |
| 4737 { | |
| 4738 /* First time at this BACK, make room to store the pos. */ | |
| 4739 if (ga_grow(&backpos, 1) == FAIL) | |
| 4740 status = RA_FAIL; | |
| 4741 else | |
| 4742 { | |
| 4743 /* get "ga_data" again, it may have changed */ | |
| 4744 bp = (backpos_T *)backpos.ga_data; | |
| 4745 bp[i].bp_scan = scan; | |
| 4746 ++backpos.ga_len; | |
| 4747 } | |
| 4748 } | |
| 4749 else if (reg_save_equal(&bp[i].bp_pos)) | |
| 4750 /* Still at same position as last time, fail. */ | |
| 4751 status = RA_NOMATCH; | |
| 4752 | |
| 4753 if (status != RA_FAIL && status != RA_NOMATCH) | |
| 4754 reg_save(&bp[i].bp_pos, &backpos); | |
| 4755 } | |
| 179 | 4756 break; |
| 4757 | |
| 7 | 4758 case MOPEN + 0: /* Match start: \zs */ |
| 4759 case MOPEN + 1: /* \( */ | |
| 4760 case MOPEN + 2: | |
| 4761 case MOPEN + 3: | |
| 4762 case MOPEN + 4: | |
| 4763 case MOPEN + 5: | |
| 4764 case MOPEN + 6: | |
| 4765 case MOPEN + 7: | |
| 4766 case MOPEN + 8: | |
| 4767 case MOPEN + 9: | |
| 4768 { | |
| 4769 no = op - MOPEN; | |
| 4770 cleanup_subexpr(); | |
| 270 | 4771 rp = regstack_push(RS_MOPEN, scan); |
| 180 | 4772 if (rp == NULL) |
| 4773 status = RA_FAIL; | |
| 4774 else | |
| 4775 { | |
| 4776 rp->rs_no = no; | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
4777 save_se(&rp->rs_un.sesave, &rex.reg_startpos[no], |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
4778 &rex.reg_startp[no]); |
| 180 | 4779 /* We simply continue and handle the result when done. */ |
| 4780 } | |
| 7 | 4781 } |
| 180 | 4782 break; |
| 7 | 4783 |
| 4784 case NOPEN: /* \%( */ | |
| 4785 case NCLOSE: /* \) after \%( */ | |
| 270 | 4786 if (regstack_push(RS_NOPEN, scan) == NULL) |
| 180 | 4787 status = RA_FAIL; |
| 4788 /* We simply continue and handle the result when done. */ | |
| 4789 break; | |
| 7 | 4790 |
| 4791 #ifdef FEAT_SYN_HL | |
| 4792 case ZOPEN + 1: | |
| 4793 case ZOPEN + 2: | |
| 4794 case ZOPEN + 3: | |
| 4795 case ZOPEN + 4: | |
| 4796 case ZOPEN + 5: | |
| 4797 case ZOPEN + 6: | |
| 4798 case ZOPEN + 7: | |
| 4799 case ZOPEN + 8: | |
| 4800 case ZOPEN + 9: | |
| 4801 { | |
| 4802 no = op - ZOPEN; | |
| 4803 cleanup_zsubexpr(); | |
| 270 | 4804 rp = regstack_push(RS_ZOPEN, scan); |
| 180 | 4805 if (rp == NULL) |
| 4806 status = RA_FAIL; | |
| 4807 else | |
| 4808 { | |
| 4809 rp->rs_no = no; | |
| 4810 save_se(&rp->rs_un.sesave, ®_startzpos[no], | |
| 4811 ®_startzp[no]); | |
| 4812 /* We simply continue and handle the result when done. */ | |
| 4813 } | |
| 7 | 4814 } |
| 180 | 4815 break; |
| 7 | 4816 #endif |
| 4817 | |
| 4818 case MCLOSE + 0: /* Match end: \ze */ | |
| 4819 case MCLOSE + 1: /* \) */ | |
| 4820 case MCLOSE + 2: | |
| 4821 case MCLOSE + 3: | |
| 4822 case MCLOSE + 4: | |
| 4823 case MCLOSE + 5: | |
| 4824 case MCLOSE + 6: | |
| 4825 case MCLOSE + 7: | |
| 4826 case MCLOSE + 8: | |
| 4827 case MCLOSE + 9: | |
| 4828 { | |
| 4829 no = op - MCLOSE; | |
| 4830 cleanup_subexpr(); | |
| 270 | 4831 rp = regstack_push(RS_MCLOSE, scan); |
| 180 | 4832 if (rp == NULL) |
| 4833 status = RA_FAIL; | |
| 4834 else | |
| 4835 { | |
| 4836 rp->rs_no = no; | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
4837 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
|
4838 &rex.reg_endp[no]); |
| 180 | 4839 /* We simply continue and handle the result when done. */ |
| 4840 } | |
| 7 | 4841 } |
| 180 | 4842 break; |
| 7 | 4843 |
| 4844 #ifdef FEAT_SYN_HL | |
| 4845 case ZCLOSE + 1: /* \) after \z( */ | |
| 4846 case ZCLOSE + 2: | |
| 4847 case ZCLOSE + 3: | |
| 4848 case ZCLOSE + 4: | |
| 4849 case ZCLOSE + 5: | |
| 4850 case ZCLOSE + 6: | |
| 4851 case ZCLOSE + 7: | |
| 4852 case ZCLOSE + 8: | |
| 4853 case ZCLOSE + 9: | |
| 4854 { | |
| 4855 no = op - ZCLOSE; | |
| 4856 cleanup_zsubexpr(); | |
| 270 | 4857 rp = regstack_push(RS_ZCLOSE, scan); |
| 180 | 4858 if (rp == NULL) |
| 4859 status = RA_FAIL; | |
| 4860 else | |
| 4861 { | |
| 4862 rp->rs_no = no; | |
| 4863 save_se(&rp->rs_un.sesave, ®_endzpos[no], | |
| 4864 ®_endzp[no]); | |
| 4865 /* We simply continue and handle the result when done. */ | |
| 4866 } | |
| 7 | 4867 } |
| 180 | 4868 break; |
| 7 | 4869 #endif |
| 4870 | |
| 4871 case BACKREF + 1: | |
| 4872 case BACKREF + 2: | |
| 4873 case BACKREF + 3: | |
| 4874 case BACKREF + 4: | |
| 4875 case BACKREF + 5: | |
| 4876 case BACKREF + 6: | |
| 4877 case BACKREF + 7: | |
| 4878 case BACKREF + 8: | |
| 4879 case BACKREF + 9: | |
| 4880 { | |
| 4881 int len; | |
| 4882 | |
| 4883 no = op - BACKREF; | |
| 4884 cleanup_subexpr(); | |
| 4885 if (!REG_MULTI) /* Single-line regexp */ | |
| 4886 { | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
4887 if (rex.reg_startp[no] == NULL || rex.reg_endp[no] == NULL) |
| 7 | 4888 { |
| 4889 /* Backref was not set: Match an empty string. */ | |
| 4890 len = 0; | |
| 4891 } | |
| 4892 else | |
| 4893 { | |
| 4894 /* Compare current input with back-ref in the same | |
| 4895 * line. */ | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
4896 len = (int)(rex.reg_endp[no] - rex.reg_startp[no]); |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
4897 if (cstrncmp(rex.reg_startp[no], rex.input, &len) != 0) |
| 180 | 4898 status = RA_NOMATCH; |
| 7 | 4899 } |
| 4900 } | |
| 4901 else /* Multi-line regexp */ | |
| 4902 { | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
4903 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
|
4904 || rex.reg_endpos[no].lnum < 0) |
| 7 | 4905 { |
| 4906 /* Backref was not set: Match an empty string. */ | |
| 4907 len = 0; | |
| 4908 } | |
| 4909 else | |
| 4910 { | |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
4911 if (rex.reg_startpos[no].lnum == rex.lnum |
|
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
4912 && rex.reg_endpos[no].lnum == rex.lnum) |
| 7 | 4913 { |
| 4914 /* Compare back-ref within the current line. */ | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
4915 len = rex.reg_endpos[no].col |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
4916 - rex.reg_startpos[no].col; |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
4917 if (cstrncmp(rex.line + rex.reg_startpos[no].col, |
|
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
4918 rex.input, &len) != 0) |
| 180 | 4919 status = RA_NOMATCH; |
| 7 | 4920 } |
| 4921 else | |
| 4922 { | |
| 4923 /* Messy situation: Need to compare between two | |
| 4924 * lines. */ | |
|
4901
56fbf60e9476
updated for version 7.3.1196
Bram Moolenaar <bram@vim.org>
parents:
4899
diff
changeset
|
4925 int r = match_with_backref( |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
4926 rex.reg_startpos[no].lnum, |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
4927 rex.reg_startpos[no].col, |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
4928 rex.reg_endpos[no].lnum, |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
4929 rex.reg_endpos[no].col, |
|
4899
4837fd61be52
updated for version 7.3.1195
Bram Moolenaar <bram@vim.org>
parents:
4891
diff
changeset
|
4930 &len); |
|
4901
56fbf60e9476
updated for version 7.3.1196
Bram Moolenaar <bram@vim.org>
parents:
4899
diff
changeset
|
4931 |
|
56fbf60e9476
updated for version 7.3.1196
Bram Moolenaar <bram@vim.org>
parents:
4899
diff
changeset
|
4932 if (r != RA_MATCH) |
|
56fbf60e9476
updated for version 7.3.1196
Bram Moolenaar <bram@vim.org>
parents:
4899
diff
changeset
|
4933 status = r; |
| 7 | 4934 } |
| 4935 } | |
| 4936 } | |
| 4937 | |
| 4938 /* Matched the backref, skip over it. */ | |
|
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
|
4939 rex.input += len; |
| 7 | 4940 } |
| 4941 break; | |
| 4942 | |
| 4943 #ifdef FEAT_SYN_HL | |
| 4944 case ZREF + 1: | |
| 4945 case ZREF + 2: | |
| 4946 case ZREF + 3: | |
| 4947 case ZREF + 4: | |
| 4948 case ZREF + 5: | |
| 4949 case ZREF + 6: | |
| 4950 case ZREF + 7: | |
| 4951 case ZREF + 8: | |
| 4952 case ZREF + 9: | |
| 4953 { | |
| 4954 int len; | |
| 4955 | |
| 4956 cleanup_zsubexpr(); | |
| 4957 no = op - ZREF; | |
| 4958 if (re_extmatch_in != NULL | |
| 4959 && re_extmatch_in->matches[no] != NULL) | |
| 4960 { | |
| 4961 len = (int)STRLEN(re_extmatch_in->matches[no]); | |
| 4962 if (cstrncmp(re_extmatch_in->matches[no], | |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
4963 rex.input, &len) != 0) |
| 180 | 4964 status = RA_NOMATCH; |
| 4965 else | |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
4966 rex.input += len; |
| 7 | 4967 } |
| 4968 else | |
| 4969 { | |
| 4970 /* Backref was not set: Match an empty string. */ | |
| 4971 } | |
| 4972 } | |
| 4973 break; | |
| 4974 #endif | |
| 4975 | |
| 4976 case BRANCH: | |
| 4977 { | |
| 4978 if (OP(next) != BRANCH) /* No choice. */ | |
| 4979 next = OPERAND(scan); /* Avoid recursion. */ | |
| 4980 else | |
| 4981 { | |
| 270 | 4982 rp = regstack_push(RS_BRANCH, scan); |
| 180 | 4983 if (rp == NULL) |
| 4984 status = RA_FAIL; | |
| 4985 else | |
| 4986 status = RA_BREAK; /* rest is below */ | |
| 7 | 4987 } |
| 4988 } | |
| 4989 break; | |
| 4990 | |
| 4991 case BRACE_LIMITS: | |
| 4992 { | |
| 4993 if (OP(next) == BRACE_SIMPLE) | |
| 4994 { | |
| 4995 bl_minval = OPERAND_MIN(scan); | |
| 4996 bl_maxval = OPERAND_MAX(scan); | |
| 4997 } | |
| 4998 else if (OP(next) >= BRACE_COMPLEX | |
| 4999 && OP(next) < BRACE_COMPLEX + 10) | |
| 5000 { | |
| 5001 no = OP(next) - BRACE_COMPLEX; | |
| 5002 brace_min[no] = OPERAND_MIN(scan); | |
| 5003 brace_max[no] = OPERAND_MAX(scan); | |
| 5004 brace_count[no] = 0; | |
| 5005 } | |
| 5006 else | |
| 5007 { | |
|
10359
66f1b5bf3fa6
commit https://github.com/vim/vim/commit/95f096030ed1a8afea028f2ea295d6f6a70f466f
Christian Brabandt <cb@256bit.org>
parents:
10245
diff
changeset
|
5008 internal_error("BRACE_LIMITS"); |
| 180 | 5009 status = RA_FAIL; |
| 7 | 5010 } |
| 5011 } | |
| 5012 break; | |
| 5013 | |
| 5014 case BRACE_COMPLEX + 0: | |
| 5015 case BRACE_COMPLEX + 1: | |
| 5016 case BRACE_COMPLEX + 2: | |
| 5017 case BRACE_COMPLEX + 3: | |
| 5018 case BRACE_COMPLEX + 4: | |
| 5019 case BRACE_COMPLEX + 5: | |
| 5020 case BRACE_COMPLEX + 6: | |
| 5021 case BRACE_COMPLEX + 7: | |
| 5022 case BRACE_COMPLEX + 8: | |
| 5023 case BRACE_COMPLEX + 9: | |
| 5024 { | |
| 5025 no = op - BRACE_COMPLEX; | |
| 5026 ++brace_count[no]; | |
| 5027 | |
| 5028 /* If not matched enough times yet, try one more */ | |
| 5029 if (brace_count[no] <= (brace_min[no] <= brace_max[no] | |
| 180 | 5030 ? brace_min[no] : brace_max[no])) |
| 7 | 5031 { |
| 270 | 5032 rp = regstack_push(RS_BRCPLX_MORE, scan); |
| 180 | 5033 if (rp == NULL) |
| 5034 status = RA_FAIL; | |
| 5035 else | |
| 5036 { | |
| 5037 rp->rs_no = no; | |
| 233 | 5038 reg_save(&rp->rs_un.regsave, &backpos); |
| 180 | 5039 next = OPERAND(scan); |
| 5040 /* We continue and handle the result when done. */ | |
| 5041 } | |
| 5042 break; | |
| 7 | 5043 } |
| 5044 | |
| 5045 /* If matched enough times, may try matching some more */ | |
| 5046 if (brace_min[no] <= brace_max[no]) | |
| 5047 { | |
| 5048 /* Range is the normal way around, use longest match */ | |
| 5049 if (brace_count[no] <= brace_max[no]) | |
| 5050 { | |
| 270 | 5051 rp = regstack_push(RS_BRCPLX_LONG, scan); |
| 180 | 5052 if (rp == NULL) |
| 5053 status = RA_FAIL; | |
| 5054 else | |
| 5055 { | |
| 5056 rp->rs_no = no; | |
| 233 | 5057 reg_save(&rp->rs_un.regsave, &backpos); |
| 180 | 5058 next = OPERAND(scan); |
| 5059 /* We continue and handle the result when done. */ | |
| 5060 } | |
| 7 | 5061 } |
| 5062 } | |
| 5063 else | |
| 5064 { | |
| 5065 /* Range is backwards, use shortest match first */ | |
| 5066 if (brace_count[no] <= brace_min[no]) | |
| 5067 { | |
| 270 | 5068 rp = regstack_push(RS_BRCPLX_SHORT, scan); |
| 180 | 5069 if (rp == NULL) |
| 5070 status = RA_FAIL; | |
| 5071 else | |
| 5072 { | |
| 233 | 5073 reg_save(&rp->rs_un.regsave, &backpos); |
| 180 | 5074 /* We continue and handle the result when done. */ |
| 5075 } | |
| 7 | 5076 } |
| 5077 } | |
| 5078 } | |
| 5079 break; | |
| 5080 | |
| 5081 case BRACE_SIMPLE: | |
| 5082 case STAR: | |
| 5083 case PLUS: | |
| 5084 { | |
| 180 | 5085 regstar_T rst; |
| 7 | 5086 |
| 5087 /* | |
| 5088 * Lookahead to avoid useless match attempts when we know | |
| 5089 * what character comes next. | |
| 5090 */ | |
| 5091 if (OP(next) == EXACTLY) | |
| 5092 { | |
| 180 | 5093 rst.nextb = *OPERAND(next); |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
5094 if (rex.reg_ic) |
| 7 | 5095 { |
| 1347 | 5096 if (MB_ISUPPER(rst.nextb)) |
| 5097 rst.nextb_ic = MB_TOLOWER(rst.nextb); | |
| 7 | 5098 else |
| 1347 | 5099 rst.nextb_ic = MB_TOUPPER(rst.nextb); |
| 7 | 5100 } |
| 5101 else | |
| 180 | 5102 rst.nextb_ic = rst.nextb; |
| 7 | 5103 } |
| 5104 else | |
| 5105 { | |
| 180 | 5106 rst.nextb = NUL; |
| 5107 rst.nextb_ic = NUL; | |
| 7 | 5108 } |
| 5109 if (op != BRACE_SIMPLE) | |
| 5110 { | |
| 180 | 5111 rst.minval = (op == STAR) ? 0 : 1; |
| 5112 rst.maxval = MAX_LIMIT; | |
| 7 | 5113 } |
| 5114 else | |
| 5115 { | |
| 180 | 5116 rst.minval = bl_minval; |
| 5117 rst.maxval = bl_maxval; | |
| 7 | 5118 } |
| 5119 | |
| 5120 /* | |
| 5121 * When maxval > minval, try matching as much as possible, up | |
| 5122 * to maxval. When maxval < minval, try matching at least the | |
| 5123 * minimal number (since the range is backwards, that's also | |
| 5124 * maxval!). | |
| 5125 */ | |
| 180 | 5126 rst.count = regrepeat(OPERAND(scan), rst.maxval); |
| 7 | 5127 if (got_int) |
| 180 | 5128 { |
| 5129 status = RA_FAIL; | |
| 5130 break; | |
| 5131 } | |
| 5132 if (rst.minval <= rst.maxval | |
| 5133 ? rst.count >= rst.minval : rst.count >= rst.maxval) | |
| 7 | 5134 { |
| 180 | 5135 /* It could match. Prepare for trying to match what |
| 5136 * follows. The code is below. Parameters are stored in | |
| 5137 * a regstar_T on the regstack. */ | |
| 212 | 5138 if ((long)((unsigned)regstack.ga_len >> 10) >= p_mmp) |
| 189 | 5139 { |
|
15470
55ccc2d353bd
patch 8.1.0743: giving error messages is not flexible
Bram Moolenaar <Bram@vim.org>
parents:
15339
diff
changeset
|
5140 emsg(_(e_maxmempat)); |
| 189 | 5141 status = RA_FAIL; |
| 5142 } | |
| 5143 else if (ga_grow(®stack, sizeof(regstar_T)) == FAIL) | |
| 180 | 5144 status = RA_FAIL; |
| 5145 else | |
| 7 | 5146 { |
| 180 | 5147 regstack.ga_len += sizeof(regstar_T); |
| 270 | 5148 rp = regstack_push(rst.minval <= rst.maxval |
| 233 | 5149 ? RS_STAR_LONG : RS_STAR_SHORT, scan); |
| 180 | 5150 if (rp == NULL) |
| 5151 status = RA_FAIL; | |
| 5152 else | |
| 7 | 5153 { |
| 180 | 5154 *(((regstar_T *)rp) - 1) = rst; |
| 5155 status = RA_BREAK; /* skip the restore bits */ | |
| 7 | 5156 } |
| 5157 } | |
| 5158 } | |
| 5159 else | |
| 180 | 5160 status = RA_NOMATCH; |
| 5161 | |
| 7 | 5162 } |
| 180 | 5163 break; |
| 7 | 5164 |
| 5165 case NOMATCH: | |
| 5166 case MATCH: | |
| 5167 case SUBPAT: | |
| 270 | 5168 rp = regstack_push(RS_NOMATCH, scan); |
| 180 | 5169 if (rp == NULL) |
| 5170 status = RA_FAIL; | |
| 5171 else | |
| 7 | 5172 { |
| 180 | 5173 rp->rs_no = op; |
| 233 | 5174 reg_save(&rp->rs_un.regsave, &backpos); |
| 180 | 5175 next = OPERAND(scan); |
| 5176 /* We continue and handle the result when done. */ | |
| 7 | 5177 } |
| 5178 break; | |
| 5179 | |
| 5180 case BEHIND: | |
| 5181 case NOBEHIND: | |
| 180 | 5182 /* Need a bit of room to store extra positions. */ |
| 212 | 5183 if ((long)((unsigned)regstack.ga_len >> 10) >= p_mmp) |
| 189 | 5184 { |
|
15470
55ccc2d353bd
patch 8.1.0743: giving error messages is not flexible
Bram Moolenaar <Bram@vim.org>
parents:
15339
diff
changeset
|
5185 emsg(_(e_maxmempat)); |
| 189 | 5186 status = RA_FAIL; |
| 5187 } | |
| 5188 else if (ga_grow(®stack, sizeof(regbehind_T)) == FAIL) | |
| 180 | 5189 status = RA_FAIL; |
| 5190 else | |
| 7 | 5191 { |
| 180 | 5192 regstack.ga_len += sizeof(regbehind_T); |
| 270 | 5193 rp = regstack_push(RS_BEHIND1, scan); |
| 180 | 5194 if (rp == NULL) |
| 5195 status = RA_FAIL; | |
| 5196 else | |
| 7 | 5197 { |
| 1579 | 5198 /* Need to save the subexpr to be able to restore them |
| 5199 * when there is a match but we don't use it. */ | |
| 5200 save_subexpr(((regbehind_T *)rp) - 1); | |
| 5201 | |
| 180 | 5202 rp->rs_no = op; |
| 233 | 5203 reg_save(&rp->rs_un.regsave, &backpos); |
| 180 | 5204 /* First try if what follows matches. If it does then we |
| 5205 * check the behind match by looping. */ | |
| 7 | 5206 } |
| 5207 } | |
| 180 | 5208 break; |
| 7 | 5209 |
| 5210 case BHPOS: | |
| 5211 if (REG_MULTI) | |
| 5212 { | |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
5213 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
|
5214 || behind_pos.rs_u.pos.lnum != rex.lnum) |
| 180 | 5215 status = RA_NOMATCH; |
| 7 | 5216 } |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
5217 else if (behind_pos.rs_u.ptr != rex.input) |
| 180 | 5218 status = RA_NOMATCH; |
| 7 | 5219 break; |
| 5220 | |
| 5221 case NEWL: | |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
5222 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
|
5223 || rex.reg_line_lbr) |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
5224 && (c != '\n' || !rex.reg_line_lbr)) |
| 180 | 5225 status = RA_NOMATCH; |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
5226 else if (rex.reg_line_lbr) |
| 7 | 5227 ADVANCE_REGINPUT(); |
| 5228 else | |
| 5229 reg_nextline(); | |
| 5230 break; | |
| 5231 | |
| 5232 case END: | |
| 180 | 5233 status = RA_MATCH; /* Success! */ |
| 5234 break; | |
| 7 | 5235 |
| 5236 default: | |
|
15470
55ccc2d353bd
patch 8.1.0743: giving error messages is not flexible
Bram Moolenaar <Bram@vim.org>
parents:
15339
diff
changeset
|
5237 emsg(_(e_re_corr)); |
| 7 | 5238 #ifdef DEBUG |
| 5239 printf("Illegal op code %d\n", op); | |
| 5240 #endif | |
| 180 | 5241 status = RA_FAIL; |
| 5242 break; | |
| 7 | 5243 } |
| 5244 } | |
| 5245 | |
| 180 | 5246 /* If we can't continue sequentially, break the inner loop. */ |
| 5247 if (status != RA_CONT) | |
| 5248 break; | |
| 5249 | |
| 5250 /* Continue in inner loop, advance to next item. */ | |
| 7 | 5251 scan = next; |
| 180 | 5252 |
| 5253 } /* end of inner loop */ | |
| 7 | 5254 |
| 5255 /* | |
| 180 | 5256 * If there is something on the regstack execute the code for the state. |
| 233 | 5257 * If the state is popped then loop and use the older state. |
| 7 | 5258 */ |
| 180 | 5259 while (regstack.ga_len > 0 && status != RA_FAIL) |
| 5260 { | |
| 5261 rp = (regitem_T *)((char *)regstack.ga_data + regstack.ga_len) - 1; | |
| 5262 switch (rp->rs_state) | |
| 5263 { | |
| 5264 case RS_NOPEN: | |
| 5265 /* Result is passed on as-is, simply pop the state. */ | |
| 270 | 5266 regstack_pop(&scan); |
| 180 | 5267 break; |
| 5268 | |
| 5269 case RS_MOPEN: | |
| 5270 /* Pop the state. Restore pointers when there is no match. */ | |
| 5271 if (status == RA_NOMATCH) | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
5272 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
|
5273 &rex.reg_startp[rp->rs_no]); |
| 270 | 5274 regstack_pop(&scan); |
| 180 | 5275 break; |
| 5276 | |
| 5277 #ifdef FEAT_SYN_HL | |
| 5278 case RS_ZOPEN: | |
| 5279 /* Pop the state. Restore pointers when there is no match. */ | |
| 5280 if (status == RA_NOMATCH) | |
| 5281 restore_se(&rp->rs_un.sesave, ®_startzpos[rp->rs_no], | |
| 5282 ®_startzp[rp->rs_no]); | |
| 270 | 5283 regstack_pop(&scan); |
| 180 | 5284 break; |
| 5285 #endif | |
| 5286 | |
| 5287 case RS_MCLOSE: | |
| 5288 /* Pop the state. Restore pointers when there is no match. */ | |
| 5289 if (status == RA_NOMATCH) | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
5290 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
|
5291 &rex.reg_endp[rp->rs_no]); |
| 270 | 5292 regstack_pop(&scan); |
| 180 | 5293 break; |
| 5294 | |
| 5295 #ifdef FEAT_SYN_HL | |
| 5296 case RS_ZCLOSE: | |
| 5297 /* Pop the state. Restore pointers when there is no match. */ | |
| 5298 if (status == RA_NOMATCH) | |
| 5299 restore_se(&rp->rs_un.sesave, ®_endzpos[rp->rs_no], | |
| 5300 ®_endzp[rp->rs_no]); | |
| 270 | 5301 regstack_pop(&scan); |
| 180 | 5302 break; |
| 5303 #endif | |
| 5304 | |
| 5305 case RS_BRANCH: | |
| 5306 if (status == RA_MATCH) | |
| 5307 /* this branch matched, use it */ | |
| 270 | 5308 regstack_pop(&scan); |
| 180 | 5309 else |
| 5310 { | |
| 5311 if (status != RA_BREAK) | |
| 5312 { | |
| 5313 /* After a non-matching branch: try next one. */ | |
| 233 | 5314 reg_restore(&rp->rs_un.regsave, &backpos); |
| 180 | 5315 scan = rp->rs_scan; |
| 5316 } | |
| 5317 if (scan == NULL || OP(scan) != BRANCH) | |
| 5318 { | |
| 5319 /* no more branches, didn't find a match */ | |
| 5320 status = RA_NOMATCH; | |
| 270 | 5321 regstack_pop(&scan); |
| 180 | 5322 } |
| 5323 else | |
| 5324 { | |
| 5325 /* Prepare to try a branch. */ | |
| 5326 rp->rs_scan = regnext(scan); | |
| 233 | 5327 reg_save(&rp->rs_un.regsave, &backpos); |
| 180 | 5328 scan = OPERAND(scan); |
| 5329 } | |
| 5330 } | |
| 5331 break; | |
| 5332 | |
| 5333 case RS_BRCPLX_MORE: | |
| 5334 /* Pop the state. Restore pointers when there is no match. */ | |
| 5335 if (status == RA_NOMATCH) | |
| 5336 { | |
| 233 | 5337 reg_restore(&rp->rs_un.regsave, &backpos); |
| 180 | 5338 --brace_count[rp->rs_no]; /* decrement match count */ |
| 5339 } | |
| 270 | 5340 regstack_pop(&scan); |
| 180 | 5341 break; |
| 5342 | |
| 5343 case RS_BRCPLX_LONG: | |
| 5344 /* Pop the state. Restore pointers when there is no match. */ | |
| 5345 if (status == RA_NOMATCH) | |
| 5346 { | |
| 5347 /* There was no match, but we did find enough matches. */ | |
| 233 | 5348 reg_restore(&rp->rs_un.regsave, &backpos); |
| 180 | 5349 --brace_count[rp->rs_no]; |
| 5350 /* continue with the items after "\{}" */ | |
| 5351 status = RA_CONT; | |
| 5352 } | |
| 270 | 5353 regstack_pop(&scan); |
| 180 | 5354 if (status == RA_CONT) |
| 5355 scan = regnext(scan); | |
| 5356 break; | |
| 5357 | |
| 5358 case RS_BRCPLX_SHORT: | |
| 5359 /* Pop the state. Restore pointers when there is no match. */ | |
| 5360 if (status == RA_NOMATCH) | |
| 5361 /* There was no match, try to match one more item. */ | |
| 233 | 5362 reg_restore(&rp->rs_un.regsave, &backpos); |
| 270 | 5363 regstack_pop(&scan); |
| 180 | 5364 if (status == RA_NOMATCH) |
| 5365 { | |
| 5366 scan = OPERAND(scan); | |
| 5367 status = RA_CONT; | |
| 5368 } | |
| 5369 break; | |
| 5370 | |
| 5371 case RS_NOMATCH: | |
| 5372 /* Pop the state. If the operand matches for NOMATCH or | |
| 5373 * doesn't match for MATCH/SUBPAT, we fail. Otherwise backup, | |
| 5374 * except for SUBPAT, and continue with the next item. */ | |
| 5375 if (status == (rp->rs_no == NOMATCH ? RA_MATCH : RA_NOMATCH)) | |
| 5376 status = RA_NOMATCH; | |
| 5377 else | |
| 5378 { | |
| 5379 status = RA_CONT; | |
| 233 | 5380 if (rp->rs_no != SUBPAT) /* zero-width */ |
| 5381 reg_restore(&rp->rs_un.regsave, &backpos); | |
| 180 | 5382 } |
| 270 | 5383 regstack_pop(&scan); |
| 180 | 5384 if (status == RA_CONT) |
| 5385 scan = regnext(scan); | |
| 5386 break; | |
| 5387 | |
| 5388 case RS_BEHIND1: | |
| 5389 if (status == RA_NOMATCH) | |
| 5390 { | |
| 270 | 5391 regstack_pop(&scan); |
| 180 | 5392 regstack.ga_len -= sizeof(regbehind_T); |
| 5393 } | |
| 5394 else | |
| 5395 { | |
| 5396 /* The stuff after BEHIND/NOBEHIND matches. Now try if | |
| 5397 * the behind part does (not) match before the current | |
| 5398 * position in the input. This must be done at every | |
| 5399 * position in the input and checking if the match ends at | |
| 5400 * the current position. */ | |
| 5401 | |
| 5402 /* save the position after the found match for next */ | |
| 233 | 5403 reg_save(&(((regbehind_T *)rp) - 1)->save_after, &backpos); |
| 180 | 5404 |
|
4579
7a2be4a39423
updated for version 7.3.1037
Bram Moolenaar <bram@vim.org>
parents:
4505
diff
changeset
|
5405 /* Start looking for a match with operand at the current |
| 1209 | 5406 * position. Go back one character until we find the |
| 180 | 5407 * result, hitting the start of the line or the previous |
| 5408 * line (for multi-line matching). | |
| 5409 * Set behind_pos to where the match should end, BHPOS | |
| 5410 * will match it. Save the current value. */ | |
| 5411 (((regbehind_T *)rp) - 1)->save_behind = behind_pos; | |
| 5412 behind_pos = rp->rs_un.regsave; | |
| 5413 | |
| 5414 rp->rs_state = RS_BEHIND2; | |
| 5415 | |
| 233 | 5416 reg_restore(&rp->rs_un.regsave, &backpos); |
|
4579
7a2be4a39423
updated for version 7.3.1037
Bram Moolenaar <bram@vim.org>
parents:
4505
diff
changeset
|
5417 scan = OPERAND(rp->rs_scan) + 4; |
| 180 | 5418 } |
| 5419 break; | |
| 5420 | |
| 5421 case RS_BEHIND2: | |
| 5422 /* | |
| 5423 * Looping for BEHIND / NOBEHIND match. | |
| 5424 */ | |
| 5425 if (status == RA_MATCH && reg_save_equal(&behind_pos)) | |
| 5426 { | |
| 5427 /* found a match that ends where "next" started */ | |
| 5428 behind_pos = (((regbehind_T *)rp) - 1)->save_behind; | |
| 5429 if (rp->rs_no == BEHIND) | |
| 233 | 5430 reg_restore(&(((regbehind_T *)rp) - 1)->save_after, |
| 5431 &backpos); | |
| 180 | 5432 else |
| 1579 | 5433 { |
| 5434 /* But we didn't want a match. Need to restore the | |
| 5435 * subexpr, because what follows matched, so they have | |
| 5436 * been set. */ | |
| 180 | 5437 status = RA_NOMATCH; |
| 1579 | 5438 restore_subexpr(((regbehind_T *)rp) - 1); |
| 5439 } | |
| 270 | 5440 regstack_pop(&scan); |
| 180 | 5441 regstack.ga_len -= sizeof(regbehind_T); |
| 5442 } | |
| 5443 else | |
| 5444 { | |
|
4579
7a2be4a39423
updated for version 7.3.1037
Bram Moolenaar <bram@vim.org>
parents:
4505
diff
changeset
|
5445 long limit; |
|
7a2be4a39423
updated for version 7.3.1037
Bram Moolenaar <bram@vim.org>
parents:
4505
diff
changeset
|
5446 |
| 1579 | 5447 /* No match or a match that doesn't end where we want it: Go |
| 5448 * back one character. May go to previous line once. */ | |
| 180 | 5449 no = OK; |
|
4579
7a2be4a39423
updated for version 7.3.1037
Bram Moolenaar <bram@vim.org>
parents:
4505
diff
changeset
|
5450 limit = OPERAND_MIN(rp->rs_scan); |
| 180 | 5451 if (REG_MULTI) |
| 5452 { | |
|
4682
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
5453 if (limit > 0 |
|
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
5454 && ((rp->rs_un.regsave.rs_u.pos.lnum |
|
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
5455 < behind_pos.rs_u.pos.lnum |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
5456 ? (colnr_T)STRLEN(rex.line) |
|
4682
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
5457 : behind_pos.rs_u.pos.col) |
|
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
5458 - 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
|
5459 no = FAIL; |
|
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
5460 else if (rp->rs_un.regsave.rs_u.pos.col == 0) |
| 180 | 5461 { |
| 5462 if (rp->rs_un.regsave.rs_u.pos.lnum | |
| 5463 < behind_pos.rs_u.pos.lnum | |
| 5464 || reg_getline( | |
| 5465 --rp->rs_un.regsave.rs_u.pos.lnum) | |
| 5466 == NULL) | |
| 5467 no = FAIL; | |
| 5468 else | |
| 5469 { | |
| 233 | 5470 reg_restore(&rp->rs_un.regsave, &backpos); |
| 180 | 5471 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
|
5472 (colnr_T)STRLEN(rex.line); |
| 180 | 5473 } |
| 5474 } | |
| 5475 else | |
|
4579
7a2be4a39423
updated for version 7.3.1037
Bram Moolenaar <bram@vim.org>
parents:
4505
diff
changeset
|
5476 { |
|
7a2be4a39423
updated for version 7.3.1037
Bram Moolenaar <bram@vim.org>
parents:
4505
diff
changeset
|
5477 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
|
5478 { |
|
a90bc1e28cbb
patch 8.0.1517: invalid memory acces with pattern using look-behind match
Christian Brabandt <cb@256bit.org>
parents:
13244
diff
changeset
|
5479 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
|
5480 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
|
5481 |
|
4579
7a2be4a39423
updated for version 7.3.1037
Bram Moolenaar <bram@vim.org>
parents:
4505
diff
changeset
|
5482 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
|
5483 (*mb_head_off)(line, line |
| 4176 | 5484 + 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
|
5485 } |
|
4579
7a2be4a39423
updated for version 7.3.1037
Bram Moolenaar <bram@vim.org>
parents:
4505
diff
changeset
|
5486 else |
|
7a2be4a39423
updated for version 7.3.1037
Bram Moolenaar <bram@vim.org>
parents:
4505
diff
changeset
|
5487 --rp->rs_un.regsave.rs_u.pos.col; |
|
7a2be4a39423
updated for version 7.3.1037
Bram Moolenaar <bram@vim.org>
parents:
4505
diff
changeset
|
5488 } |
| 180 | 5489 } |
| 5490 else | |
| 5491 { | |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
5492 if (rp->rs_un.regsave.rs_u.ptr == rex.line) |
| 180 | 5493 no = FAIL; |
| 5494 else | |
|
4579
7a2be4a39423
updated for version 7.3.1037
Bram Moolenaar <bram@vim.org>
parents:
4505
diff
changeset
|
5495 { |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
5496 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
|
5497 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
|
5498 - rp->rs_un.regsave.rs_u.ptr) > limit) |
|
7a2be4a39423
updated for version 7.3.1037
Bram Moolenaar <bram@vim.org>
parents:
4505
diff
changeset
|
5499 no = FAIL; |
|
7a2be4a39423
updated for version 7.3.1037
Bram Moolenaar <bram@vim.org>
parents:
4505
diff
changeset
|
5500 } |
| 180 | 5501 } |
| 5502 if (no == OK) | |
| 5503 { | |
| 5504 /* Advanced, prepare for finding match again. */ | |
| 233 | 5505 reg_restore(&rp->rs_un.regsave, &backpos); |
|
4579
7a2be4a39423
updated for version 7.3.1037
Bram Moolenaar <bram@vim.org>
parents:
4505
diff
changeset
|
5506 scan = OPERAND(rp->rs_scan) + 4; |
| 1579 | 5507 if (status == RA_MATCH) |
| 5508 { | |
| 5509 /* We did match, so subexpr may have been changed, | |
| 5510 * need to restore them for the next try. */ | |
| 5511 status = RA_NOMATCH; | |
| 5512 restore_subexpr(((regbehind_T *)rp) - 1); | |
| 5513 } | |
| 180 | 5514 } |
| 5515 else | |
| 5516 { | |
| 5517 /* Can't advance. For NOBEHIND that's a match. */ | |
| 5518 behind_pos = (((regbehind_T *)rp) - 1)->save_behind; | |
| 5519 if (rp->rs_no == NOBEHIND) | |
| 5520 { | |
| 233 | 5521 reg_restore(&(((regbehind_T *)rp) - 1)->save_after, |
| 5522 &backpos); | |
| 180 | 5523 status = RA_MATCH; |
| 5524 } | |
| 5525 else | |
| 1579 | 5526 { |
| 5527 /* We do want a proper match. Need to restore the | |
| 5528 * subexpr if we had a match, because they may have | |
| 5529 * been set. */ | |
| 5530 if (status == RA_MATCH) | |
| 5531 { | |
| 5532 status = RA_NOMATCH; | |
| 5533 restore_subexpr(((regbehind_T *)rp) - 1); | |
| 5534 } | |
| 5535 } | |
| 270 | 5536 regstack_pop(&scan); |
| 180 | 5537 regstack.ga_len -= sizeof(regbehind_T); |
| 5538 } | |
| 5539 } | |
| 5540 break; | |
| 5541 | |
| 5542 case RS_STAR_LONG: | |
| 5543 case RS_STAR_SHORT: | |
| 5544 { | |
| 5545 regstar_T *rst = ((regstar_T *)rp) - 1; | |
| 5546 | |
| 5547 if (status == RA_MATCH) | |
| 5548 { | |
| 270 | 5549 regstack_pop(&scan); |
| 180 | 5550 regstack.ga_len -= sizeof(regstar_T); |
| 5551 break; | |
| 5552 } | |
| 5553 | |
| 5554 /* Tried once already, restore input pointers. */ | |
| 5555 if (status != RA_BREAK) | |
| 233 | 5556 reg_restore(&rp->rs_un.regsave, &backpos); |
| 180 | 5557 |
| 5558 /* Repeat until we found a position where it could match. */ | |
| 5559 for (;;) | |
| 5560 { | |
| 5561 if (status != RA_BREAK) | |
| 5562 { | |
| 5563 /* Tried first position already, advance. */ | |
| 5564 if (rp->rs_state == RS_STAR_LONG) | |
| 5565 { | |
| 685 | 5566 /* Trying for longest match, but couldn't or |
| 5567 * didn't match -- back up one char. */ | |
| 180 | 5568 if (--rst->count < rst->minval) |
| 5569 break; | |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
5570 if (rex.input == rex.line) |
| 180 | 5571 { |
| 5572 /* 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
|
5573 --rex.lnum; |
|
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
5574 rex.line = reg_getline(rex.lnum); |
| 180 | 5575 /* Just in case regrepeat() didn't count |
| 5576 * right. */ | |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
5577 if (rex.line == NULL) |
| 180 | 5578 break; |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
5579 rex.input = rex.line + STRLEN(rex.line); |
| 180 | 5580 fast_breakcheck(); |
| 5581 } | |
| 5582 else | |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
5583 MB_PTR_BACK(rex.line, rex.input); |
| 180 | 5584 } |
| 5585 else | |
| 5586 { | |
| 5587 /* Range is backwards, use shortest match first. | |
| 5588 * Careful: maxval and minval are exchanged! | |
| 5589 * Couldn't or didn't match: try advancing one | |
| 5590 * char. */ | |
| 5591 if (rst->count == rst->minval | |
| 5592 || regrepeat(OPERAND(rp->rs_scan), 1L) == 0) | |
| 5593 break; | |
| 5594 ++rst->count; | |
| 5595 } | |
| 5596 if (got_int) | |
| 5597 break; | |
| 5598 } | |
| 5599 else | |
| 5600 status = RA_NOMATCH; | |
| 5601 | |
| 5602 /* 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
|
5603 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
|
5604 || *rex.input == rst->nextb_ic) |
| 180 | 5605 { |
| 233 | 5606 reg_save(&rp->rs_un.regsave, &backpos); |
| 180 | 5607 scan = regnext(rp->rs_scan); |
| 5608 status = RA_CONT; | |
| 5609 break; | |
| 5610 } | |
| 5611 } | |
| 5612 if (status != RA_CONT) | |
| 5613 { | |
| 5614 /* Failed. */ | |
| 270 | 5615 regstack_pop(&scan); |
| 180 | 5616 regstack.ga_len -= sizeof(regstar_T); |
| 5617 status = RA_NOMATCH; | |
| 5618 } | |
| 5619 } | |
| 5620 break; | |
| 5621 } | |
| 5622 | |
| 685 | 5623 /* If we want to continue the inner loop or didn't pop a state |
| 5624 * continue matching loop */ | |
| 180 | 5625 if (status == RA_CONT || rp == (regitem_T *) |
| 5626 ((char *)regstack.ga_data + regstack.ga_len) - 1) | |
| 5627 break; | |
| 5628 } | |
| 5629 | |
| 189 | 5630 /* May need to continue with the inner loop, starting at "scan". */ |
| 180 | 5631 if (status == RA_CONT) |
| 5632 continue; | |
| 5633 | |
| 5634 /* | |
| 5635 * If the regstack is empty or something failed we are done. | |
| 5636 */ | |
| 5637 if (regstack.ga_len == 0 || status == RA_FAIL) | |
| 5638 { | |
| 5639 if (scan == NULL) | |
| 5640 { | |
| 5641 /* | |
| 5642 * We get here only if there's trouble -- normally "case END" is | |
| 5643 * the terminating point. | |
| 5644 */ | |
|
15470
55ccc2d353bd
patch 8.1.0743: giving error messages is not flexible
Bram Moolenaar <Bram@vim.org>
parents:
15339
diff
changeset
|
5645 emsg(_(e_re_corr)); |
| 7 | 5646 #ifdef DEBUG |
| 180 | 5647 printf("Premature EOL\n"); |
| 7 | 5648 #endif |
| 180 | 5649 } |
| 5650 return (status == RA_MATCH); | |
| 5651 } | |
| 5652 | |
| 5653 } /* End of loop until the regstack is empty. */ | |
| 5654 | |
| 5655 /* NOTREACHED */ | |
| 5656 } | |
| 5657 | |
| 5658 /* | |
| 5659 * Push an item onto the regstack. | |
| 5660 * Returns pointer to new item. Returns NULL when out of memory. | |
| 5661 */ | |
| 5662 static regitem_T * | |
|
7833
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
5663 regstack_push(regstate_T state, char_u *scan) |
| 180 | 5664 { |
| 5665 regitem_T *rp; | |
| 5666 | |
| 270 | 5667 if ((long)((unsigned)regstack.ga_len >> 10) >= p_mmp) |
| 189 | 5668 { |
|
15470
55ccc2d353bd
patch 8.1.0743: giving error messages is not flexible
Bram Moolenaar <Bram@vim.org>
parents:
15339
diff
changeset
|
5669 emsg(_(e_maxmempat)); |
| 189 | 5670 return NULL; |
| 5671 } | |
| 270 | 5672 if (ga_grow(®stack, sizeof(regitem_T)) == FAIL) |
| 180 | 5673 return NULL; |
| 5674 | |
| 270 | 5675 rp = (regitem_T *)((char *)regstack.ga_data + regstack.ga_len); |
| 180 | 5676 rp->rs_state = state; |
| 5677 rp->rs_scan = scan; | |
| 5678 | |
| 270 | 5679 regstack.ga_len += sizeof(regitem_T); |
| 180 | 5680 return rp; |
| 5681 } | |
| 5682 | |
| 5683 /* | |
| 5684 * Pop an item from the regstack. | |
| 5685 */ | |
| 5686 static void | |
|
7833
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
5687 regstack_pop(char_u **scan) |
| 180 | 5688 { |
| 5689 regitem_T *rp; | |
| 5690 | |
| 270 | 5691 rp = (regitem_T *)((char *)regstack.ga_data + regstack.ga_len) - 1; |
| 180 | 5692 *scan = rp->rs_scan; |
| 5693 | |
| 270 | 5694 regstack.ga_len -= sizeof(regitem_T); |
| 7 | 5695 } |
| 5696 | |
| 5697 /* | |
| 5698 * 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
|
5699 * Advances rex.input (and rex.lnum) to just after the matched chars. |
| 7 | 5700 */ |
| 5701 static int | |
|
7833
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
5702 regrepeat( |
|
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
5703 char_u *p, |
|
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
5704 long maxcount) /* maximum number of matches allowed */ |
| 7 | 5705 { |
| 5706 long count = 0; | |
| 5707 char_u *scan; | |
| 5708 char_u *opnd; | |
| 5709 int mask; | |
| 5710 int testval = 0; | |
| 5711 | |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
5712 scan = rex.input; /* Make local copy of rex.input for speed. */ |
| 7 | 5713 opnd = OPERAND(p); |
| 5714 switch (OP(p)) | |
| 5715 { | |
| 5716 case ANY: | |
| 5717 case ANY + ADD_NL: | |
| 5718 while (count < maxcount) | |
| 5719 { | |
| 5720 /* Matching anything means we continue until end-of-line (or | |
| 5721 * end-of-file for ANY + ADD_NL), only limited by maxcount. */ | |
| 5722 while (*scan != NUL && count < maxcount) | |
| 5723 { | |
| 5724 ++count; | |
|
11127
506f5d8b7d8b
patch 8.0.0451: some macros are in lower case
Christian Brabandt <cb@256bit.org>
parents:
11121
diff
changeset
|
5725 MB_PTR_ADV(scan); |
| 7 | 5726 } |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
5727 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
|
5728 || rex.reg_line_lbr || count == maxcount) |
| 7 | 5729 break; |
| 5730 ++count; /* count the line-break */ | |
| 5731 reg_nextline(); | |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
5732 scan = rex.input; |
| 7 | 5733 if (got_int) |
| 5734 break; | |
| 5735 } | |
| 5736 break; | |
| 5737 | |
| 5738 case IDENT: | |
| 5739 case IDENT + ADD_NL: | |
| 5740 testval = TRUE; | |
|
12674
e769c912fcd9
patch 8.0.1215: newer gcc warns for implicit fallthrough
Christian Brabandt <cb@256bit.org>
parents:
11529
diff
changeset
|
5741 /* FALLTHROUGH */ |
| 7 | 5742 case SIDENT: |
| 5743 case SIDENT + ADD_NL: | |
| 5744 while (count < maxcount) | |
| 5745 { | |
| 4466 | 5746 if (vim_isIDc(PTR2CHAR(scan)) && (testval || !VIM_ISDIGIT(*scan))) |
| 7 | 5747 { |
|
11127
506f5d8b7d8b
patch 8.0.0451: some macros are in lower case
Christian Brabandt <cb@256bit.org>
parents:
11121
diff
changeset
|
5748 MB_PTR_ADV(scan); |
| 7 | 5749 } |
| 5750 else if (*scan == NUL) | |
| 5751 { | |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
5752 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
|
5753 || rex.reg_line_lbr) |
| 7 | 5754 break; |
| 5755 reg_nextline(); | |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
5756 scan = rex.input; |
| 7 | 5757 if (got_int) |
| 5758 break; | |
| 5759 } | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
5760 else if (rex.reg_line_lbr && *scan == '\n' && WITH_NL(OP(p))) |
| 7 | 5761 ++scan; |
| 5762 else | |
| 5763 break; | |
| 5764 ++count; | |
| 5765 } | |
| 5766 break; | |
| 5767 | |
| 5768 case KWORD: | |
| 5769 case KWORD + ADD_NL: | |
| 5770 testval = TRUE; | |
|
12674
e769c912fcd9
patch 8.0.1215: newer gcc warns for implicit fallthrough
Christian Brabandt <cb@256bit.org>
parents:
11529
diff
changeset
|
5771 /* FALLTHROUGH */ |
| 7 | 5772 case SKWORD: |
| 5773 case SKWORD + ADD_NL: | |
| 5774 while (count < maxcount) | |
| 5775 { | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
5776 if (vim_iswordp_buf(scan, rex.reg_buf) |
| 4069 | 5777 && (testval || !VIM_ISDIGIT(*scan))) |
| 7 | 5778 { |
|
11127
506f5d8b7d8b
patch 8.0.0451: some macros are in lower case
Christian Brabandt <cb@256bit.org>
parents:
11121
diff
changeset
|
5779 MB_PTR_ADV(scan); |
| 7 | 5780 } |
| 5781 else if (*scan == NUL) | |
| 5782 { | |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
5783 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
|
5784 || rex.reg_line_lbr) |
| 7 | 5785 break; |
| 5786 reg_nextline(); | |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
5787 scan = rex.input; |
| 7 | 5788 if (got_int) |
| 5789 break; | |
| 5790 } | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
5791 else if (rex.reg_line_lbr && *scan == '\n' && WITH_NL(OP(p))) |
| 7 | 5792 ++scan; |
| 5793 else | |
| 5794 break; | |
| 5795 ++count; | |
| 5796 } | |
| 5797 break; | |
| 5798 | |
| 5799 case FNAME: | |
| 5800 case FNAME + ADD_NL: | |
| 5801 testval = TRUE; | |
|
12674
e769c912fcd9
patch 8.0.1215: newer gcc warns for implicit fallthrough
Christian Brabandt <cb@256bit.org>
parents:
11529
diff
changeset
|
5802 /* FALLTHROUGH */ |
| 7 | 5803 case SFNAME: |
| 5804 case SFNAME + ADD_NL: | |
| 5805 while (count < maxcount) | |
| 5806 { | |
| 4466 | 5807 if (vim_isfilec(PTR2CHAR(scan)) && (testval || !VIM_ISDIGIT(*scan))) |
| 7 | 5808 { |
|
11127
506f5d8b7d8b
patch 8.0.0451: some macros are in lower case
Christian Brabandt <cb@256bit.org>
parents:
11121
diff
changeset
|
5809 MB_PTR_ADV(scan); |
| 7 | 5810 } |
| 5811 else if (*scan == NUL) | |
| 5812 { | |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
5813 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
|
5814 || rex.reg_line_lbr) |
| 7 | 5815 break; |
| 5816 reg_nextline(); | |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
5817 scan = rex.input; |
| 7 | 5818 if (got_int) |
| 5819 break; | |
| 5820 } | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
5821 else if (rex.reg_line_lbr && *scan == '\n' && WITH_NL(OP(p))) |
| 7 | 5822 ++scan; |
| 5823 else | |
| 5824 break; | |
| 5825 ++count; | |
| 5826 } | |
| 5827 break; | |
| 5828 | |
| 5829 case PRINT: | |
| 5830 case PRINT + ADD_NL: | |
| 5831 testval = TRUE; | |
|
12674
e769c912fcd9
patch 8.0.1215: newer gcc warns for implicit fallthrough
Christian Brabandt <cb@256bit.org>
parents:
11529
diff
changeset
|
5832 /* FALLTHROUGH */ |
| 7 | 5833 case SPRINT: |
| 5834 case SPRINT + ADD_NL: | |
| 5835 while (count < maxcount) | |
| 5836 { | |
| 5837 if (*scan == NUL) | |
| 5838 { | |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
5839 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
|
5840 || rex.reg_line_lbr) |
| 7 | 5841 break; |
| 5842 reg_nextline(); | |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
5843 scan = rex.input; |
| 7 | 5844 if (got_int) |
| 5845 break; | |
| 5846 } | |
|
5221
9982ec574beb
updated for version 7.4a.036
Bram Moolenaar <bram@vim.org>
parents:
4901
diff
changeset
|
5847 else if (vim_isprintc(PTR2CHAR(scan)) == 1 |
|
9982ec574beb
updated for version 7.4a.036
Bram Moolenaar <bram@vim.org>
parents:
4901
diff
changeset
|
5848 && (testval || !VIM_ISDIGIT(*scan))) |
| 7 | 5849 { |
|
11127
506f5d8b7d8b
patch 8.0.0451: some macros are in lower case
Christian Brabandt <cb@256bit.org>
parents:
11121
diff
changeset
|
5850 MB_PTR_ADV(scan); |
| 7 | 5851 } |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
5852 else if (rex.reg_line_lbr && *scan == '\n' && WITH_NL(OP(p))) |
| 7 | 5853 ++scan; |
| 5854 else | |
| 5855 break; | |
| 5856 ++count; | |
| 5857 } | |
| 5858 break; | |
| 5859 | |
| 5860 case WHITE: | |
| 5861 case WHITE + ADD_NL: | |
| 5862 testval = mask = RI_WHITE; | |
| 5863 do_class: | |
| 5864 while (count < maxcount) | |
| 5865 { | |
| 5866 int l; | |
|
15603
639b8318472c
patch 8.1.0809: too many #ifdefs
Bram Moolenaar <Bram@vim.org>
parents:
15555
diff
changeset
|
5867 |
| 7 | 5868 if (*scan == NUL) |
| 5869 { | |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
5870 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
|
5871 || rex.reg_line_lbr) |
| 7 | 5872 break; |
| 5873 reg_nextline(); | |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
5874 scan = rex.input; |
| 7 | 5875 if (got_int) |
| 5876 break; | |
| 5877 } | |
| 474 | 5878 else if (has_mbyte && (l = (*mb_ptr2len)(scan)) > 1) |
| 7 | 5879 { |
| 5880 if (testval != 0) | |
| 5881 break; | |
| 5882 scan += l; | |
| 5883 } | |
| 5884 else if ((class_tab[*scan] & mask) == testval) | |
| 5885 ++scan; | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
5886 else if (rex.reg_line_lbr && *scan == '\n' && WITH_NL(OP(p))) |
| 7 | 5887 ++scan; |
| 5888 else | |
| 5889 break; | |
| 5890 ++count; | |
| 5891 } | |
| 5892 break; | |
| 5893 | |
| 5894 case NWHITE: | |
| 5895 case NWHITE + ADD_NL: | |
| 5896 mask = RI_WHITE; | |
| 5897 goto do_class; | |
| 5898 case DIGIT: | |
| 5899 case DIGIT + ADD_NL: | |
| 5900 testval = mask = RI_DIGIT; | |
| 5901 goto do_class; | |
| 5902 case NDIGIT: | |
| 5903 case NDIGIT + ADD_NL: | |
| 5904 mask = RI_DIGIT; | |
| 5905 goto do_class; | |
| 5906 case HEX: | |
| 5907 case HEX + ADD_NL: | |
| 5908 testval = mask = RI_HEX; | |
| 5909 goto do_class; | |
| 5910 case NHEX: | |
| 5911 case NHEX + ADD_NL: | |
| 5912 mask = RI_HEX; | |
| 5913 goto do_class; | |
| 5914 case OCTAL: | |
| 5915 case OCTAL + ADD_NL: | |
| 5916 testval = mask = RI_OCTAL; | |
| 5917 goto do_class; | |
| 5918 case NOCTAL: | |
| 5919 case NOCTAL + ADD_NL: | |
| 5920 mask = RI_OCTAL; | |
| 5921 goto do_class; | |
| 5922 case WORD: | |
| 5923 case WORD + ADD_NL: | |
| 5924 testval = mask = RI_WORD; | |
| 5925 goto do_class; | |
| 5926 case NWORD: | |
| 5927 case NWORD + ADD_NL: | |
| 5928 mask = RI_WORD; | |
| 5929 goto do_class; | |
| 5930 case HEAD: | |
| 5931 case HEAD + ADD_NL: | |
| 5932 testval = mask = RI_HEAD; | |
| 5933 goto do_class; | |
| 5934 case NHEAD: | |
| 5935 case NHEAD + ADD_NL: | |
| 5936 mask = RI_HEAD; | |
| 5937 goto do_class; | |
| 5938 case ALPHA: | |
| 5939 case ALPHA + ADD_NL: | |
| 5940 testval = mask = RI_ALPHA; | |
| 5941 goto do_class; | |
| 5942 case NALPHA: | |
| 5943 case NALPHA + ADD_NL: | |
| 5944 mask = RI_ALPHA; | |
| 5945 goto do_class; | |
| 5946 case LOWER: | |
| 5947 case LOWER + ADD_NL: | |
| 5948 testval = mask = RI_LOWER; | |
| 5949 goto do_class; | |
| 5950 case NLOWER: | |
| 5951 case NLOWER + ADD_NL: | |
| 5952 mask = RI_LOWER; | |
| 5953 goto do_class; | |
| 5954 case UPPER: | |
| 5955 case UPPER + ADD_NL: | |
| 5956 testval = mask = RI_UPPER; | |
| 5957 goto do_class; | |
| 5958 case NUPPER: | |
| 5959 case NUPPER + ADD_NL: | |
| 5960 mask = RI_UPPER; | |
| 5961 goto do_class; | |
| 5962 | |
| 5963 case EXACTLY: | |
| 5964 { | |
| 5965 int cu, cl; | |
| 5966 | |
| 5967 /* This doesn't do a multi-byte character, because a MULTIBYTECODE | |
| 1347 | 5968 * would have been used for it. It does handle single-byte |
| 5969 * characters, such as latin1. */ | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
5970 if (rex.reg_ic) |
| 7 | 5971 { |
| 1347 | 5972 cu = MB_TOUPPER(*opnd); |
| 5973 cl = MB_TOLOWER(*opnd); | |
| 7 | 5974 while (count < maxcount && (*scan == cu || *scan == cl)) |
| 5975 { | |
| 5976 count++; | |
| 5977 scan++; | |
| 5978 } | |
| 5979 } | |
| 5980 else | |
| 5981 { | |
| 5982 cu = *opnd; | |
| 5983 while (count < maxcount && *scan == cu) | |
| 5984 { | |
| 5985 count++; | |
| 5986 scan++; | |
| 5987 } | |
| 5988 } | |
| 5989 break; | |
| 5990 } | |
| 5991 | |
| 5992 case MULTIBYTECODE: | |
| 5993 { | |
| 5994 int i, len, cf = 0; | |
| 5995 | |
| 5996 /* Safety check (just in case 'encoding' was changed since | |
| 5997 * compiling the program). */ | |
| 474 | 5998 if ((len = (*mb_ptr2len)(opnd)) > 1) |
| 7 | 5999 { |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
6000 if (rex.reg_ic && enc_utf8) |
| 7 | 6001 cf = utf_fold(utf_ptr2char(opnd)); |
| 6785 | 6002 while (count < maxcount && (*mb_ptr2len)(scan) >= len) |
| 7 | 6003 { |
| 6004 for (i = 0; i < len; ++i) | |
| 6005 if (opnd[i] != scan[i]) | |
| 6006 break; | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
6007 if (i < len && (!rex.reg_ic || !enc_utf8 |
| 7 | 6008 || utf_fold(utf_ptr2char(scan)) != cf)) |
| 6009 break; | |
| 6010 scan += len; | |
| 6011 ++count; | |
| 6012 } | |
| 6013 } | |
| 6014 } | |
| 6015 break; | |
| 6016 | |
| 6017 case ANYOF: | |
| 6018 case ANYOF + ADD_NL: | |
| 6019 testval = TRUE; | |
|
12674
e769c912fcd9
patch 8.0.1215: newer gcc warns for implicit fallthrough
Christian Brabandt <cb@256bit.org>
parents:
11529
diff
changeset
|
6020 /* FALLTHROUGH */ |
| 7 | 6021 |
| 6022 case ANYBUT: | |
| 6023 case ANYBUT + ADD_NL: | |
| 6024 while (count < maxcount) | |
| 6025 { | |
| 6026 int len; | |
|
15603
639b8318472c
patch 8.1.0809: too many #ifdefs
Bram Moolenaar <Bram@vim.org>
parents:
15555
diff
changeset
|
6027 |
| 7 | 6028 if (*scan == NUL) |
| 6029 { | |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
6030 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
|
6031 || rex.reg_line_lbr) |
| 7 | 6032 break; |
| 6033 reg_nextline(); | |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
6034 scan = rex.input; |
| 7 | 6035 if (got_int) |
| 6036 break; | |
| 6037 } | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
6038 else if (rex.reg_line_lbr && *scan == '\n' && WITH_NL(OP(p))) |
| 7 | 6039 ++scan; |
| 474 | 6040 else if (has_mbyte && (len = (*mb_ptr2len)(scan)) > 1) |
| 7 | 6041 { |
| 6042 if ((cstrchr(opnd, (*mb_ptr2char)(scan)) == NULL) == testval) | |
| 6043 break; | |
| 6044 scan += len; | |
| 6045 } | |
| 6046 else | |
| 6047 { | |
| 6048 if ((cstrchr(opnd, *scan) == NULL) == testval) | |
| 6049 break; | |
| 6050 ++scan; | |
| 6051 } | |
| 6052 ++count; | |
| 6053 } | |
| 6054 break; | |
| 6055 | |
| 6056 case NEWL: | |
| 6057 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
|
6058 && ((*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
|
6059 && !rex.reg_line_lbr && REG_MULTI) |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
6060 || (*scan == '\n' && rex.reg_line_lbr))) |
| 7 | 6061 { |
| 6062 count++; | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
6063 if (rex.reg_line_lbr) |
| 7 | 6064 ADVANCE_REGINPUT(); |
| 6065 else | |
| 6066 reg_nextline(); | |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
6067 scan = rex.input; |
| 7 | 6068 if (got_int) |
| 6069 break; | |
| 6070 } | |
| 6071 break; | |
| 6072 | |
| 6073 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
|
6074 emsg(_(e_re_corr)); |
| 7 | 6075 #ifdef DEBUG |
| 6076 printf("Called regrepeat with op code %d\n", OP(p)); | |
| 6077 #endif | |
| 6078 break; | |
| 6079 } | |
| 6080 | |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
6081 rex.input = scan; |
| 7 | 6082 |
| 6083 return (int)count; | |
| 6084 } | |
| 6085 | |
| 6086 /* | |
| 6087 * regnext - dig the "next" pointer out of a node | |
| 2010 | 6088 * Returns NULL when calculating size, when there is no next item and when |
| 6089 * there is an error. | |
| 7 | 6090 */ |
| 6091 static char_u * | |
|
7833
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
6092 regnext(char_u *p) |
| 7 | 6093 { |
| 6094 int offset; | |
| 6095 | |
| 2010 | 6096 if (p == JUST_CALC_SIZE || reg_toolong) |
| 7 | 6097 return NULL; |
| 6098 | |
| 6099 offset = NEXT(p); | |
| 6100 if (offset == 0) | |
| 6101 return NULL; | |
| 6102 | |
| 233 | 6103 if (OP(p) == BACK) |
| 7 | 6104 return p - offset; |
| 6105 else | |
| 6106 return p + offset; | |
| 6107 } | |
| 6108 | |
| 6109 /* | |
| 6110 * Check the regexp program for its magic number. | |
| 6111 * Return TRUE if it's wrong. | |
| 6112 */ | |
| 6113 static int | |
|
7833
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
6114 prog_magic_wrong(void) |
| 7 | 6115 { |
| 4444 | 6116 regprog_T *prog; |
| 6117 | |
|
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Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
6118 prog = REG_MULTI ? rex.reg_mmatch->regprog : rex.reg_match->regprog; |
| 4444 | 6119 if (prog->engine == &nfa_regengine) |
| 6120 /* For NFA matcher we don't check the magic */ | |
| 6121 return FALSE; | |
| 6122 | |
| 6123 if (UCHARAT(((bt_regprog_T *)prog)->program) != REGMAGIC) | |
| 7 | 6124 { |
|
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patch 8.1.0743: giving error messages is not flexible
Bram Moolenaar <Bram@vim.org>
parents:
15339
diff
changeset
|
6125 emsg(_(e_re_corr)); |
| 7 | 6126 return TRUE; |
| 6127 } | |
| 6128 return FALSE; | |
| 6129 } | |
| 6130 | |
| 6131 /* | |
| 6132 * Cleanup the subexpressions, if this wasn't done yet. | |
| 6133 * This construction is used to clear the subexpressions only when they are | |
| 6134 * used (to increase speed). | |
| 6135 */ | |
| 6136 static void | |
|
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Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
6137 cleanup_subexpr(void) |
| 7 | 6138 { |
|
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patch 8.1.0192: executing regexp recursively fails with a crash
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14169
diff
changeset
|
6139 if (rex.need_clear_subexpr) |
| 7 | 6140 { |
| 6141 if (REG_MULTI) | |
| 6142 { | |
| 6143 /* Use 0xff to set lnum to -1 */ | |
|
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commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
6144 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
|
6145 vim_memset(rex.reg_endpos, 0xff, sizeof(lpos_T) * NSUBEXP); |
| 7 | 6146 } |
| 6147 else | |
| 6148 { | |
|
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parents:
10187
diff
changeset
|
6149 vim_memset(rex.reg_startp, 0, sizeof(char_u *) * NSUBEXP); |
|
d76ccdacb41e
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parents:
10187
diff
changeset
|
6150 vim_memset(rex.reg_endp, 0, sizeof(char_u *) * NSUBEXP); |
| 7 | 6151 } |
|
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parents:
14169
diff
changeset
|
6152 rex.need_clear_subexpr = FALSE; |
| 7 | 6153 } |
| 6154 } | |
| 6155 | |
| 6156 #ifdef FEAT_SYN_HL | |
| 6157 static void | |
|
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parents:
7807
diff
changeset
|
6158 cleanup_zsubexpr(void) |
| 7 | 6159 { |
|
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parents:
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diff
changeset
|
6160 if (rex.need_clear_zsubexpr) |
| 7 | 6161 { |
| 6162 if (REG_MULTI) | |
| 6163 { | |
| 6164 /* Use 0xff to set lnum to -1 */ | |
| 6165 vim_memset(reg_startzpos, 0xff, sizeof(lpos_T) * NSUBEXP); | |
| 6166 vim_memset(reg_endzpos, 0xff, sizeof(lpos_T) * NSUBEXP); | |
| 6167 } | |
| 6168 else | |
| 6169 { | |
| 6170 vim_memset(reg_startzp, 0, sizeof(char_u *) * NSUBEXP); | |
| 6171 vim_memset(reg_endzp, 0, sizeof(char_u *) * NSUBEXP); | |
| 6172 } | |
|
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parents:
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diff
changeset
|
6173 rex.need_clear_zsubexpr = FALSE; |
| 7 | 6174 } |
| 6175 } | |
| 6176 #endif | |
| 6177 | |
| 6178 /* | |
| 1579 | 6179 * Save the current subexpr to "bp", so that they can be restored |
| 6180 * later by restore_subexpr(). | |
| 6181 */ | |
| 6182 static void | |
|
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parents:
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diff
changeset
|
6183 save_subexpr(regbehind_T *bp) |
| 1579 | 6184 { |
| 6185 int i; | |
| 6186 | |
|
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diff
changeset
|
6187 /* When "rex.need_clear_subexpr" is set we don't need to save the values, only |
| 1602 | 6188 * remember that this flag needs to be set again when restoring. */ |
|
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diff
changeset
|
6189 bp->save_need_clear_subexpr = rex.need_clear_subexpr; |
|
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diff
changeset
|
6190 if (!rex.need_clear_subexpr) |
| 1579 | 6191 { |
| 1602 | 6192 for (i = 0; i < NSUBEXP; ++i) |
| 1579 | 6193 { |
| 1602 | 6194 if (REG_MULTI) |
| 6195 { | |
|
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parents:
10187
diff
changeset
|
6196 bp->save_start[i].se_u.pos = rex.reg_startpos[i]; |
|
d76ccdacb41e
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parents:
10187
diff
changeset
|
6197 bp->save_end[i].se_u.pos = rex.reg_endpos[i]; |
| 1602 | 6198 } |
| 6199 else | |
| 6200 { | |
|
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10187
diff
changeset
|
6201 bp->save_start[i].se_u.ptr = rex.reg_startp[i]; |
|
d76ccdacb41e
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parents:
10187
diff
changeset
|
6202 bp->save_end[i].se_u.ptr = rex.reg_endp[i]; |
| 1602 | 6203 } |
| 1579 | 6204 } |
| 6205 } | |
| 6206 } | |
| 6207 | |
| 6208 /* | |
| 6209 * Restore the subexpr from "bp". | |
| 6210 */ | |
| 6211 static void | |
|
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Christian Brabandt <cb@256bit.org>
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7807
diff
changeset
|
6212 restore_subexpr(regbehind_T *bp) |
| 1579 | 6213 { |
| 6214 int i; | |
| 6215 | |
| 1602 | 6216 /* Only need to restore saved values when they are not to be cleared. */ |
|
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diff
changeset
|
6217 rex.need_clear_subexpr = bp->save_need_clear_subexpr; |
|
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diff
changeset
|
6218 if (!rex.need_clear_subexpr) |
| 1579 | 6219 { |
| 1602 | 6220 for (i = 0; i < NSUBEXP; ++i) |
| 1579 | 6221 { |
| 1602 | 6222 if (REG_MULTI) |
| 6223 { | |
|
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parents:
10187
diff
changeset
|
6224 rex.reg_startpos[i] = bp->save_start[i].se_u.pos; |
|
d76ccdacb41e
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parents:
10187
diff
changeset
|
6225 rex.reg_endpos[i] = bp->save_end[i].se_u.pos; |
| 1602 | 6226 } |
| 6227 else | |
| 6228 { | |
|
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10187
diff
changeset
|
6229 rex.reg_startp[i] = bp->save_start[i].se_u.ptr; |
|
d76ccdacb41e
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diff
changeset
|
6230 rex.reg_endp[i] = bp->save_end[i].se_u.ptr; |
| 1602 | 6231 } |
| 1579 | 6232 } |
| 6233 } | |
| 6234 } | |
| 6235 | |
| 6236 /* | |
|
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diff
changeset
|
6237 * Advance rex.lnum, rex.line and rex.input to the next line. |
| 7 | 6238 */ |
| 6239 static void | |
|
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diff
changeset
|
6240 reg_nextline(void) |
| 7 | 6241 { |
|
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diff
changeset
|
6242 rex.line = reg_getline(++rex.lnum); |
|
ffd834f893aa
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diff
changeset
|
6243 rex.input = rex.line; |
| 7 | 6244 fast_breakcheck(); |
| 6245 } | |
| 6246 | |
| 6247 /* | |
| 6248 * Save the input line and position in a regsave_T. | |
| 6249 */ | |
| 6250 static void | |
|
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parents:
7807
diff
changeset
|
6251 reg_save(regsave_T *save, garray_T *gap) |
| 7 | 6252 { |
| 6253 if (REG_MULTI) | |
| 6254 { | |
|
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diff
changeset
|
6255 save->rs_u.pos.col = (colnr_T)(rex.input - rex.line); |
|
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parents:
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diff
changeset
|
6256 save->rs_u.pos.lnum = rex.lnum; |
| 7 | 6257 } |
| 6258 else | |
|
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parents:
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diff
changeset
|
6259 save->rs_u.ptr = rex.input; |
| 233 | 6260 save->rs_len = gap->ga_len; |
| 7 | 6261 } |
| 6262 | |
| 6263 /* | |
| 6264 * Restore the input line and position from a regsave_T. | |
| 6265 */ | |
| 6266 static void | |
|
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Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
6267 reg_restore(regsave_T *save, garray_T *gap) |
| 7 | 6268 { |
| 6269 if (REG_MULTI) | |
| 6270 { | |
|
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parents:
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diff
changeset
|
6271 if (rex.lnum != save->rs_u.pos.lnum) |
| 7 | 6272 { |
| 6273 /* only call reg_getline() when the line number changed to save | |
| 6274 * a bit of time */ | |
|
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diff
changeset
|
6275 rex.lnum = save->rs_u.pos.lnum; |
|
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diff
changeset
|
6276 rex.line = reg_getline(rex.lnum); |
| 7 | 6277 } |
|
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parents:
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diff
changeset
|
6278 rex.input = rex.line + save->rs_u.pos.col; |
| 7 | 6279 } |
| 6280 else | |
|
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parents:
14169
diff
changeset
|
6281 rex.input = save->rs_u.ptr; |
| 233 | 6282 gap->ga_len = save->rs_len; |
| 7 | 6283 } |
| 6284 | |
| 6285 /* | |
| 6286 * Return TRUE if current position is equal to saved position. | |
| 6287 */ | |
| 6288 static int | |
|
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parents:
7807
diff
changeset
|
6289 reg_save_equal(regsave_T *save) |
| 7 | 6290 { |
| 6291 if (REG_MULTI) | |
|
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diff
changeset
|
6292 return rex.lnum == save->rs_u.pos.lnum |
|
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changeset
|
6293 && rex.input == rex.line + save->rs_u.pos.col; |
|
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parents:
14169
diff
changeset
|
6294 return rex.input == save->rs_u.ptr; |
| 7 | 6295 } |
| 6296 | |
| 6297 /* | |
| 6298 * Tentatively set the sub-expression start to the current position (after | |
| 6299 * calling regmatch() they will have changed). Need to save the existing | |
| 6300 * values for when there is no match. | |
| 6301 * Use se_save() to use pointer (save_se_multi()) or position (save_se_one()), | |
| 6302 * depending on REG_MULTI. | |
| 6303 */ | |
| 6304 static void | |
|
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parents:
7807
diff
changeset
|
6305 save_se_multi(save_se_T *savep, lpos_T *posp) |
| 7 | 6306 { |
| 6307 savep->se_u.pos = *posp; | |
|
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changeset
|
6308 posp->lnum = rex.lnum; |
|
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changeset
|
6309 posp->col = (colnr_T)(rex.input - rex.line); |
| 7 | 6310 } |
| 6311 | |
| 6312 static void | |
|
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7807
diff
changeset
|
6313 save_se_one(save_se_T *savep, char_u **pp) |
| 7 | 6314 { |
| 6315 savep->se_u.ptr = *pp; | |
|
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changeset
|
6316 *pp = rex.input; |
| 7 | 6317 } |
| 6318 | |
| 6319 /* | |
| 6320 * Compare a number with the operand of RE_LNUM, RE_COL or RE_VCOL. | |
| 6321 */ | |
| 6322 static int | |
|
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7807
diff
changeset
|
6323 re_num_cmp(long_u val, char_u *scan) |
| 7 | 6324 { |
| 6325 long_u n = OPERAND_MIN(scan); | |
| 6326 | |
| 6327 if (OPERAND_CMP(scan) == '>') | |
| 6328 return val > n; | |
| 6329 if (OPERAND_CMP(scan) == '<') | |
| 6330 return val < n; | |
| 6331 return val == n; | |
| 6332 } | |
| 6333 | |
|
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changeset
|
6334 /* |
|
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changeset
|
6335 * Check whether a backreference matches. |
|
4c42efb4c098
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changeset
|
6336 * Returns RA_FAIL, RA_NOMATCH or RA_MATCH. |
| 5504 | 6337 * If "bytelen" is not NULL, it is set to the byte length of the match in the |
| 6338 * last line. | |
|
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changeset
|
6339 */ |
|
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changeset
|
6340 static int |
|
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diff
changeset
|
6341 match_with_backref( |
|
c079097365f3
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diff
changeset
|
6342 linenr_T start_lnum, |
|
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diff
changeset
|
6343 colnr_T start_col, |
|
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diff
changeset
|
6344 linenr_T end_lnum, |
|
c079097365f3
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diff
changeset
|
6345 colnr_T end_col, |
|
c079097365f3
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diff
changeset
|
6346 int *bytelen) |
|
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changeset
|
6347 { |
|
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changeset
|
6348 linenr_T clnum = start_lnum; |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6349 colnr_T ccol = start_col; |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6350 int len; |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6351 char_u *p; |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6352 |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6353 if (bytelen != NULL) |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6354 *bytelen = 0; |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6355 for (;;) |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6356 { |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6357 /* Since getting one line may invalidate the other, need to make copy. |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6358 * Slow! */ |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
6359 if (rex.line != reg_tofree) |
|
4891
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6360 { |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
6361 len = (int)STRLEN(rex.line); |
|
4891
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6362 if (reg_tofree == NULL || len >= (int)reg_tofreelen) |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6363 { |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6364 len += 50; /* get some extra */ |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6365 vim_free(reg_tofree); |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6366 reg_tofree = alloc(len); |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6367 if (reg_tofree == NULL) |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6368 return RA_FAIL; /* out of memory!*/ |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6369 reg_tofreelen = len; |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6370 } |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
6371 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
|
6372 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
|
6373 rex.line = reg_tofree; |
|
4891
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6374 } |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6375 |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6376 /* Get the line to compare with. */ |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6377 p = reg_getline(clnum); |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6378 if (clnum == end_lnum) |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6379 len = end_col - ccol; |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6380 else |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6381 len = (int)STRLEN(p + ccol); |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6382 |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
6383 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
|
6384 return RA_NOMATCH; /* doesn't match */ |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6385 if (bytelen != NULL) |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6386 *bytelen += len; |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6387 if (clnum == end_lnum) |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6388 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
|
6389 if (rex.lnum >= rex.reg_maxline) |
|
4891
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6390 return RA_NOMATCH; /* text too short */ |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6391 |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6392 /* Advance to next line. */ |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6393 reg_nextline(); |
| 5504 | 6394 if (bytelen != NULL) |
| 6395 *bytelen = 0; | |
|
4891
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6396 ++clnum; |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6397 ccol = 0; |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6398 if (got_int) |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6399 return RA_FAIL; |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6400 } |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6401 |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
6402 /* 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
|
6403 * that should not matter. */ |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6404 return RA_MATCH; |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6405 } |
| 7 | 6406 |
| 4444 | 6407 #ifdef BT_REGEXP_DUMP |
| 7 | 6408 |
| 6409 /* | |
| 6410 * regdump - dump a regexp onto stdout in vaguely comprehensible form | |
| 6411 */ | |
| 6412 static void | |
|
7833
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
6413 regdump(char_u *pattern, bt_regprog_T *r) |
| 7 | 6414 { |
| 6415 char_u *s; | |
| 6416 int op = EXACTLY; /* Arbitrary non-END op. */ | |
| 6417 char_u *next; | |
| 6418 char_u *end = NULL; | |
| 4444 | 6419 FILE *f; |
| 6420 | |
| 6421 #ifdef BT_REGEXP_LOG | |
| 6422 f = fopen("bt_regexp_log.log", "a"); | |
| 6423 #else | |
| 6424 f = stdout; | |
| 6425 #endif | |
| 6426 if (f == NULL) | |
| 6427 return; | |
| 6428 fprintf(f, "-------------------------------------\n\r\nregcomp(%s):\r\n", pattern); | |
| 7 | 6429 |
| 6430 s = r->program + 1; | |
| 6431 /* | |
| 6432 * Loop until we find the END that isn't before a referred next (an END | |
| 6433 * can also appear in a NOMATCH operand). | |
| 6434 */ | |
| 6435 while (op != END || s <= end) | |
| 6436 { | |
| 6437 op = OP(s); | |
| 4444 | 6438 fprintf(f, "%2d%s", (int)(s - r->program), regprop(s)); /* Where, what. */ |
| 7 | 6439 next = regnext(s); |
| 6440 if (next == NULL) /* Next ptr. */ | |
| 4444 | 6441 fprintf(f, "(0)"); |
| 7 | 6442 else |
| 4444 | 6443 fprintf(f, "(%d)", (int)((s - r->program) + (next - s))); |
| 7 | 6444 if (end < next) |
| 6445 end = next; | |
| 6446 if (op == BRACE_LIMITS) | |
| 6447 { | |
|
4746
d1376091d18b
updated for version 7.3.1120
Bram Moolenaar <bram@vim.org>
parents:
4744
diff
changeset
|
6448 /* Two ints */ |
| 4444 | 6449 fprintf(f, " minval %ld, maxval %ld", OPERAND_MIN(s), OPERAND_MAX(s)); |
| 7 | 6450 s += 8; |
| 6451 } | |
|
4746
d1376091d18b
updated for version 7.3.1120
Bram Moolenaar <bram@vim.org>
parents:
4744
diff
changeset
|
6452 else if (op == BEHIND || op == NOBEHIND) |
|
d1376091d18b
updated for version 7.3.1120
Bram Moolenaar <bram@vim.org>
parents:
4744
diff
changeset
|
6453 { |
|
d1376091d18b
updated for version 7.3.1120
Bram Moolenaar <bram@vim.org>
parents:
4744
diff
changeset
|
6454 /* one int */ |
|
d1376091d18b
updated for version 7.3.1120
Bram Moolenaar <bram@vim.org>
parents:
4744
diff
changeset
|
6455 fprintf(f, " count %ld", OPERAND_MIN(s)); |
|
d1376091d18b
updated for version 7.3.1120
Bram Moolenaar <bram@vim.org>
parents:
4744
diff
changeset
|
6456 s += 4; |
|
d1376091d18b
updated for version 7.3.1120
Bram Moolenaar <bram@vim.org>
parents:
4744
diff
changeset
|
6457 } |
|
4770
b20dbf3a5370
updated for version 7.3.1132
Bram Moolenaar <bram@vim.org>
parents:
4762
diff
changeset
|
6458 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
|
6459 { |
|
15967
ddd82b1c9e9d
patch 8.1.0989: various small code ugliness
Bram Moolenaar <Bram@vim.org>
parents:
15959
diff
changeset
|
6460 /* one int plus comparator */ |
|
4770
b20dbf3a5370
updated for version 7.3.1132
Bram Moolenaar <bram@vim.org>
parents:
4762
diff
changeset
|
6461 fprintf(f, " count %ld", OPERAND_MIN(s)); |
|
b20dbf3a5370
updated for version 7.3.1132
Bram Moolenaar <bram@vim.org>
parents:
4762
diff
changeset
|
6462 s += 5; |
|
b20dbf3a5370
updated for version 7.3.1132
Bram Moolenaar <bram@vim.org>
parents:
4762
diff
changeset
|
6463 } |
| 7 | 6464 s += 3; |
| 6465 if (op == ANYOF || op == ANYOF + ADD_NL | |
| 6466 || op == ANYBUT || op == ANYBUT + ADD_NL | |
| 6467 || op == EXACTLY) | |
| 6468 { | |
| 6469 /* Literal string, where present. */ | |
| 4444 | 6470 fprintf(f, "\nxxxxxxxxx\n"); |
| 7 | 6471 while (*s != NUL) |
| 4444 | 6472 fprintf(f, "%c", *s++); |
| 6473 fprintf(f, "\nxxxxxxxxx\n"); | |
| 7 | 6474 s++; |
| 6475 } | |
| 4444 | 6476 fprintf(f, "\r\n"); |
| 7 | 6477 } |
| 6478 | |
| 6479 /* Header fields of interest. */ | |
| 6480 if (r->regstart != NUL) | |
| 4444 | 6481 fprintf(f, "start `%s' 0x%x; ", r->regstart < 256 |
| 7 | 6482 ? (char *)transchar(r->regstart) |
| 6483 : "multibyte", r->regstart); | |
| 6484 if (r->reganch) | |
| 4444 | 6485 fprintf(f, "anchored; "); |
| 7 | 6486 if (r->regmust != NULL) |
| 4444 | 6487 fprintf(f, "must have \"%s\"", r->regmust); |
| 6488 fprintf(f, "\r\n"); | |
| 6489 | |
| 6490 #ifdef BT_REGEXP_LOG | |
| 6491 fclose(f); | |
| 6492 #endif | |
| 7 | 6493 } |
| 4444 | 6494 #endif /* BT_REGEXP_DUMP */ |
| 6495 | |
| 6496 #ifdef DEBUG | |
| 7 | 6497 /* |
| 6498 * regprop - printable representation of opcode | |
| 6499 */ | |
| 6500 static char_u * | |
|
7833
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
6501 regprop(char_u *op) |
| 7 | 6502 { |
| 4444 | 6503 char *p; |
| 6504 static char buf[50]; | |
| 6505 | |
| 6506 STRCPY(buf, ":"); | |
| 6507 | |
| 6508 switch ((int) OP(op)) | |
| 7 | 6509 { |
| 6510 case BOL: | |
| 6511 p = "BOL"; | |
| 6512 break; | |
| 6513 case EOL: | |
| 6514 p = "EOL"; | |
| 6515 break; | |
| 6516 case RE_BOF: | |
| 6517 p = "BOF"; | |
| 6518 break; | |
| 6519 case RE_EOF: | |
| 6520 p = "EOF"; | |
| 6521 break; | |
| 6522 case CURSOR: | |
| 6523 p = "CURSOR"; | |
| 6524 break; | |
| 639 | 6525 case RE_VISUAL: |
| 6526 p = "RE_VISUAL"; | |
| 6527 break; | |
| 7 | 6528 case RE_LNUM: |
| 6529 p = "RE_LNUM"; | |
| 6530 break; | |
| 639 | 6531 case RE_MARK: |
| 6532 p = "RE_MARK"; | |
| 6533 break; | |
| 7 | 6534 case RE_COL: |
| 6535 p = "RE_COL"; | |
| 6536 break; | |
| 6537 case RE_VCOL: | |
| 6538 p = "RE_VCOL"; | |
| 6539 break; | |
| 6540 case BOW: | |
| 6541 p = "BOW"; | |
| 6542 break; | |
| 6543 case EOW: | |
| 6544 p = "EOW"; | |
| 6545 break; | |
| 6546 case ANY: | |
| 6547 p = "ANY"; | |
| 6548 break; | |
| 6549 case ANY + ADD_NL: | |
| 6550 p = "ANY+NL"; | |
| 6551 break; | |
| 6552 case ANYOF: | |
| 6553 p = "ANYOF"; | |
| 6554 break; | |
| 6555 case ANYOF + ADD_NL: | |
| 6556 p = "ANYOF+NL"; | |
| 6557 break; | |
| 6558 case ANYBUT: | |
| 6559 p = "ANYBUT"; | |
| 6560 break; | |
| 6561 case ANYBUT + ADD_NL: | |
| 6562 p = "ANYBUT+NL"; | |
| 6563 break; | |
| 6564 case IDENT: | |
| 6565 p = "IDENT"; | |
| 6566 break; | |
| 6567 case IDENT + ADD_NL: | |
| 6568 p = "IDENT+NL"; | |
| 6569 break; | |
| 6570 case SIDENT: | |
| 6571 p = "SIDENT"; | |
| 6572 break; | |
| 6573 case SIDENT + ADD_NL: | |
| 6574 p = "SIDENT+NL"; | |
| 6575 break; | |
| 6576 case KWORD: | |
| 6577 p = "KWORD"; | |
| 6578 break; | |
| 6579 case KWORD + ADD_NL: | |
| 6580 p = "KWORD+NL"; | |
| 6581 break; | |
| 6582 case SKWORD: | |
| 6583 p = "SKWORD"; | |
| 6584 break; | |
| 6585 case SKWORD + ADD_NL: | |
| 6586 p = "SKWORD+NL"; | |
| 6587 break; | |
| 6588 case FNAME: | |
| 6589 p = "FNAME"; | |
| 6590 break; | |
| 6591 case FNAME + ADD_NL: | |
| 6592 p = "FNAME+NL"; | |
| 6593 break; | |
| 6594 case SFNAME: | |
| 6595 p = "SFNAME"; | |
| 6596 break; | |
| 6597 case SFNAME + ADD_NL: | |
| 6598 p = "SFNAME+NL"; | |
| 6599 break; | |
| 6600 case PRINT: | |
| 6601 p = "PRINT"; | |
| 6602 break; | |
| 6603 case PRINT + ADD_NL: | |
| 6604 p = "PRINT+NL"; | |
| 6605 break; | |
| 6606 case SPRINT: | |
| 6607 p = "SPRINT"; | |
| 6608 break; | |
| 6609 case SPRINT + ADD_NL: | |
| 6610 p = "SPRINT+NL"; | |
| 6611 break; | |
| 6612 case WHITE: | |
| 6613 p = "WHITE"; | |
| 6614 break; | |
| 6615 case WHITE + ADD_NL: | |
| 6616 p = "WHITE+NL"; | |
| 6617 break; | |
| 6618 case NWHITE: | |
| 6619 p = "NWHITE"; | |
| 6620 break; | |
| 6621 case NWHITE + ADD_NL: | |
| 6622 p = "NWHITE+NL"; | |
| 6623 break; | |
| 6624 case DIGIT: | |
| 6625 p = "DIGIT"; | |
| 6626 break; | |
| 6627 case DIGIT + ADD_NL: | |
| 6628 p = "DIGIT+NL"; | |
| 6629 break; | |
| 6630 case NDIGIT: | |
| 6631 p = "NDIGIT"; | |
| 6632 break; | |
| 6633 case NDIGIT + ADD_NL: | |
| 6634 p = "NDIGIT+NL"; | |
| 6635 break; | |
| 6636 case HEX: | |
| 6637 p = "HEX"; | |
| 6638 break; | |
| 6639 case HEX + ADD_NL: | |
| 6640 p = "HEX+NL"; | |
| 6641 break; | |
| 6642 case NHEX: | |
| 6643 p = "NHEX"; | |
| 6644 break; | |
| 6645 case NHEX + ADD_NL: | |
| 6646 p = "NHEX+NL"; | |
| 6647 break; | |
| 6648 case OCTAL: | |
| 6649 p = "OCTAL"; | |
| 6650 break; | |
| 6651 case OCTAL + ADD_NL: | |
| 6652 p = "OCTAL+NL"; | |
| 6653 break; | |
| 6654 case NOCTAL: | |
| 6655 p = "NOCTAL"; | |
| 6656 break; | |
| 6657 case NOCTAL + ADD_NL: | |
| 6658 p = "NOCTAL+NL"; | |
| 6659 break; | |
| 6660 case WORD: | |
| 6661 p = "WORD"; | |
| 6662 break; | |
| 6663 case WORD + ADD_NL: | |
| 6664 p = "WORD+NL"; | |
| 6665 break; | |
| 6666 case NWORD: | |
| 6667 p = "NWORD"; | |
| 6668 break; | |
| 6669 case NWORD + ADD_NL: | |
| 6670 p = "NWORD+NL"; | |
| 6671 break; | |
| 6672 case HEAD: | |
| 6673 p = "HEAD"; | |
| 6674 break; | |
| 6675 case HEAD + ADD_NL: | |
| 6676 p = "HEAD+NL"; | |
| 6677 break; | |
| 6678 case NHEAD: | |
| 6679 p = "NHEAD"; | |
| 6680 break; | |
| 6681 case NHEAD + ADD_NL: | |
| 6682 p = "NHEAD+NL"; | |
| 6683 break; | |
| 6684 case ALPHA: | |
| 6685 p = "ALPHA"; | |
| 6686 break; | |
| 6687 case ALPHA + ADD_NL: | |
| 6688 p = "ALPHA+NL"; | |
| 6689 break; | |
| 6690 case NALPHA: | |
| 6691 p = "NALPHA"; | |
| 6692 break; | |
| 6693 case NALPHA + ADD_NL: | |
| 6694 p = "NALPHA+NL"; | |
| 6695 break; | |
| 6696 case LOWER: | |
| 6697 p = "LOWER"; | |
| 6698 break; | |
| 6699 case LOWER + ADD_NL: | |
| 6700 p = "LOWER+NL"; | |
| 6701 break; | |
| 6702 case NLOWER: | |
| 6703 p = "NLOWER"; | |
| 6704 break; | |
| 6705 case NLOWER + ADD_NL: | |
| 6706 p = "NLOWER+NL"; | |
| 6707 break; | |
| 6708 case UPPER: | |
| 6709 p = "UPPER"; | |
| 6710 break; | |
| 6711 case UPPER + ADD_NL: | |
| 6712 p = "UPPER+NL"; | |
| 6713 break; | |
| 6714 case NUPPER: | |
| 6715 p = "NUPPER"; | |
| 6716 break; | |
| 6717 case NUPPER + ADD_NL: | |
| 6718 p = "NUPPER+NL"; | |
| 6719 break; | |
| 6720 case BRANCH: | |
| 6721 p = "BRANCH"; | |
| 6722 break; | |
| 6723 case EXACTLY: | |
| 6724 p = "EXACTLY"; | |
| 6725 break; | |
| 6726 case NOTHING: | |
| 6727 p = "NOTHING"; | |
| 6728 break; | |
| 6729 case BACK: | |
| 6730 p = "BACK"; | |
| 6731 break; | |
| 6732 case END: | |
| 6733 p = "END"; | |
| 6734 break; | |
| 6735 case MOPEN + 0: | |
| 6736 p = "MATCH START"; | |
| 6737 break; | |
| 6738 case MOPEN + 1: | |
| 6739 case MOPEN + 2: | |
| 6740 case MOPEN + 3: | |
| 6741 case MOPEN + 4: | |
| 6742 case MOPEN + 5: | |
| 6743 case MOPEN + 6: | |
| 6744 case MOPEN + 7: | |
| 6745 case MOPEN + 8: | |
| 6746 case MOPEN + 9: | |
| 6747 sprintf(buf + STRLEN(buf), "MOPEN%d", OP(op) - MOPEN); | |
| 6748 p = NULL; | |
| 6749 break; | |
| 6750 case MCLOSE + 0: | |
| 6751 p = "MATCH END"; | |
| 6752 break; | |
| 6753 case MCLOSE + 1: | |
| 6754 case MCLOSE + 2: | |
| 6755 case MCLOSE + 3: | |
| 6756 case MCLOSE + 4: | |
| 6757 case MCLOSE + 5: | |
| 6758 case MCLOSE + 6: | |
| 6759 case MCLOSE + 7: | |
| 6760 case MCLOSE + 8: | |
| 6761 case MCLOSE + 9: | |
| 6762 sprintf(buf + STRLEN(buf), "MCLOSE%d", OP(op) - MCLOSE); | |
| 6763 p = NULL; | |
| 6764 break; | |
| 6765 case BACKREF + 1: | |
| 6766 case BACKREF + 2: | |
| 6767 case BACKREF + 3: | |
| 6768 case BACKREF + 4: | |
| 6769 case BACKREF + 5: | |
| 6770 case BACKREF + 6: | |
| 6771 case BACKREF + 7: | |
| 6772 case BACKREF + 8: | |
| 6773 case BACKREF + 9: | |
| 6774 sprintf(buf + STRLEN(buf), "BACKREF%d", OP(op) - BACKREF); | |
| 6775 p = NULL; | |
| 6776 break; | |
| 6777 case NOPEN: | |
| 6778 p = "NOPEN"; | |
| 6779 break; | |
| 6780 case NCLOSE: | |
| 6781 p = "NCLOSE"; | |
| 6782 break; | |
| 6783 #ifdef FEAT_SYN_HL | |
| 6784 case ZOPEN + 1: | |
| 6785 case ZOPEN + 2: | |
| 6786 case ZOPEN + 3: | |
| 6787 case ZOPEN + 4: | |
| 6788 case ZOPEN + 5: | |
| 6789 case ZOPEN + 6: | |
| 6790 case ZOPEN + 7: | |
| 6791 case ZOPEN + 8: | |
| 6792 case ZOPEN + 9: | |
| 6793 sprintf(buf + STRLEN(buf), "ZOPEN%d", OP(op) - ZOPEN); | |
| 6794 p = NULL; | |
| 6795 break; | |
| 6796 case ZCLOSE + 1: | |
| 6797 case ZCLOSE + 2: | |
| 6798 case ZCLOSE + 3: | |
| 6799 case ZCLOSE + 4: | |
| 6800 case ZCLOSE + 5: | |
| 6801 case ZCLOSE + 6: | |
| 6802 case ZCLOSE + 7: | |
| 6803 case ZCLOSE + 8: | |
| 6804 case ZCLOSE + 9: | |
| 6805 sprintf(buf + STRLEN(buf), "ZCLOSE%d", OP(op) - ZCLOSE); | |
| 6806 p = NULL; | |
| 6807 break; | |
| 6808 case ZREF + 1: | |
| 6809 case ZREF + 2: | |
| 6810 case ZREF + 3: | |
| 6811 case ZREF + 4: | |
| 6812 case ZREF + 5: | |
| 6813 case ZREF + 6: | |
| 6814 case ZREF + 7: | |
| 6815 case ZREF + 8: | |
| 6816 case ZREF + 9: | |
| 6817 sprintf(buf + STRLEN(buf), "ZREF%d", OP(op) - ZREF); | |
| 6818 p = NULL; | |
| 6819 break; | |
| 6820 #endif | |
| 6821 case STAR: | |
| 6822 p = "STAR"; | |
| 6823 break; | |
| 6824 case PLUS: | |
| 6825 p = "PLUS"; | |
| 6826 break; | |
| 6827 case NOMATCH: | |
| 6828 p = "NOMATCH"; | |
| 6829 break; | |
| 6830 case MATCH: | |
| 6831 p = "MATCH"; | |
| 6832 break; | |
| 6833 case BEHIND: | |
| 6834 p = "BEHIND"; | |
| 6835 break; | |
| 6836 case NOBEHIND: | |
| 6837 p = "NOBEHIND"; | |
| 6838 break; | |
| 6839 case SUBPAT: | |
| 6840 p = "SUBPAT"; | |
| 6841 break; | |
| 6842 case BRACE_LIMITS: | |
| 6843 p = "BRACE_LIMITS"; | |
| 6844 break; | |
| 6845 case BRACE_SIMPLE: | |
| 6846 p = "BRACE_SIMPLE"; | |
| 6847 break; | |
| 6848 case BRACE_COMPLEX + 0: | |
| 6849 case BRACE_COMPLEX + 1: | |
| 6850 case BRACE_COMPLEX + 2: | |
| 6851 case BRACE_COMPLEX + 3: | |
| 6852 case BRACE_COMPLEX + 4: | |
| 6853 case BRACE_COMPLEX + 5: | |
| 6854 case BRACE_COMPLEX + 6: | |
| 6855 case BRACE_COMPLEX + 7: | |
| 6856 case BRACE_COMPLEX + 8: | |
| 6857 case BRACE_COMPLEX + 9: | |
| 6858 sprintf(buf + STRLEN(buf), "BRACE_COMPLEX%d", OP(op) - BRACE_COMPLEX); | |
| 6859 p = NULL; | |
| 6860 break; | |
| 6861 case MULTIBYTECODE: | |
| 6862 p = "MULTIBYTECODE"; | |
| 6863 break; | |
| 6864 case NEWL: | |
| 6865 p = "NEWL"; | |
| 6866 break; | |
| 6867 default: | |
| 6868 sprintf(buf + STRLEN(buf), "corrupt %d", OP(op)); | |
| 6869 p = NULL; | |
| 6870 break; | |
| 6871 } | |
| 6872 if (p != NULL) | |
| 4444 | 6873 STRCAT(buf, p); |
| 6874 return (char_u *)buf; | |
| 7 | 6875 } |
| 4444 | 6876 #endif /* DEBUG */ |
| 7 | 6877 |
| 6203 | 6878 /* |
| 6879 * Used in a place where no * or \+ can follow. | |
| 6880 */ | |
| 6881 static int | |
|
7833
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
6882 re_mult_next(char *what) |
| 6203 | 6883 { |
| 6884 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
|
6885 { |
|
bd12ace1bab2
patch 8.1.0748: using sprintf() instead of semsg()
Bram Moolenaar <Bram@vim.org>
parents:
15470
diff
changeset
|
6886 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
|
6887 rc_did_emsg = TRUE; |
|
bd12ace1bab2
patch 8.1.0748: using sprintf() instead of semsg()
Bram Moolenaar <Bram@vim.org>
parents:
15470
diff
changeset
|
6888 return FAIL; |
|
bd12ace1bab2
patch 8.1.0748: using sprintf() instead of semsg()
Bram Moolenaar <Bram@vim.org>
parents:
15470
diff
changeset
|
6889 } |
| 6203 | 6890 return OK; |
| 6891 } | |
| 6892 | |
| 7 | 6893 typedef struct |
| 6894 { | |
| 6895 int a, b, c; | |
| 6896 } decomp_T; | |
| 6897 | |
| 6898 | |
| 6899 /* 0xfb20 - 0xfb4f */ | |
| 297 | 6900 static decomp_T decomp_table[0xfb4f-0xfb20+1] = |
| 7 | 6901 { |
| 6902 {0x5e2,0,0}, /* 0xfb20 alt ayin */ | |
| 6903 {0x5d0,0,0}, /* 0xfb21 alt alef */ | |
| 6904 {0x5d3,0,0}, /* 0xfb22 alt dalet */ | |
| 6905 {0x5d4,0,0}, /* 0xfb23 alt he */ | |
| 6906 {0x5db,0,0}, /* 0xfb24 alt kaf */ | |
| 6907 {0x5dc,0,0}, /* 0xfb25 alt lamed */ | |
| 6908 {0x5dd,0,0}, /* 0xfb26 alt mem-sofit */ | |
| 6909 {0x5e8,0,0}, /* 0xfb27 alt resh */ | |
| 6910 {0x5ea,0,0}, /* 0xfb28 alt tav */ | |
| 6911 {'+', 0, 0}, /* 0xfb29 alt plus */ | |
| 6912 {0x5e9, 0x5c1, 0}, /* 0xfb2a shin+shin-dot */ | |
| 6913 {0x5e9, 0x5c2, 0}, /* 0xfb2b shin+sin-dot */ | |
| 6914 {0x5e9, 0x5c1, 0x5bc}, /* 0xfb2c shin+shin-dot+dagesh */ | |
| 6915 {0x5e9, 0x5c2, 0x5bc}, /* 0xfb2d shin+sin-dot+dagesh */ | |
| 6916 {0x5d0, 0x5b7, 0}, /* 0xfb2e alef+patah */ | |
| 6917 {0x5d0, 0x5b8, 0}, /* 0xfb2f alef+qamats */ | |
| 6918 {0x5d0, 0x5b4, 0}, /* 0xfb30 alef+hiriq */ | |
| 6919 {0x5d1, 0x5bc, 0}, /* 0xfb31 bet+dagesh */ | |
| 6920 {0x5d2, 0x5bc, 0}, /* 0xfb32 gimel+dagesh */ | |
| 6921 {0x5d3, 0x5bc, 0}, /* 0xfb33 dalet+dagesh */ | |
| 6922 {0x5d4, 0x5bc, 0}, /* 0xfb34 he+dagesh */ | |
| 6923 {0x5d5, 0x5bc, 0}, /* 0xfb35 vav+dagesh */ | |
| 6924 {0x5d6, 0x5bc, 0}, /* 0xfb36 zayin+dagesh */ | |
| 6925 {0xfb37, 0, 0}, /* 0xfb37 -- UNUSED */ | |
| 6926 {0x5d8, 0x5bc, 0}, /* 0xfb38 tet+dagesh */ | |
| 6927 {0x5d9, 0x5bc, 0}, /* 0xfb39 yud+dagesh */ | |
| 6928 {0x5da, 0x5bc, 0}, /* 0xfb3a kaf sofit+dagesh */ | |
| 6929 {0x5db, 0x5bc, 0}, /* 0xfb3b kaf+dagesh */ | |
| 6930 {0x5dc, 0x5bc, 0}, /* 0xfb3c lamed+dagesh */ | |
| 6931 {0xfb3d, 0, 0}, /* 0xfb3d -- UNUSED */ | |
| 6932 {0x5de, 0x5bc, 0}, /* 0xfb3e mem+dagesh */ | |
| 6933 {0xfb3f, 0, 0}, /* 0xfb3f -- UNUSED */ | |
| 6934 {0x5e0, 0x5bc, 0}, /* 0xfb40 nun+dagesh */ | |
| 6935 {0x5e1, 0x5bc, 0}, /* 0xfb41 samech+dagesh */ | |
| 6936 {0xfb42, 0, 0}, /* 0xfb42 -- UNUSED */ | |
| 6937 {0x5e3, 0x5bc, 0}, /* 0xfb43 pe sofit+dagesh */ | |
| 6938 {0x5e4, 0x5bc,0}, /* 0xfb44 pe+dagesh */ | |
| 6939 {0xfb45, 0, 0}, /* 0xfb45 -- UNUSED */ | |
| 6940 {0x5e6, 0x5bc, 0}, /* 0xfb46 tsadi+dagesh */ | |
| 6941 {0x5e7, 0x5bc, 0}, /* 0xfb47 qof+dagesh */ | |
| 6942 {0x5e8, 0x5bc, 0}, /* 0xfb48 resh+dagesh */ | |
| 6943 {0x5e9, 0x5bc, 0}, /* 0xfb49 shin+dagesh */ | |
| 6944 {0x5ea, 0x5bc, 0}, /* 0xfb4a tav+dagesh */ | |
| 6945 {0x5d5, 0x5b9, 0}, /* 0xfb4b vav+holam */ | |
| 6946 {0x5d1, 0x5bf, 0}, /* 0xfb4c bet+rafe */ | |
| 6947 {0x5db, 0x5bf, 0}, /* 0xfb4d kaf+rafe */ | |
| 6948 {0x5e4, 0x5bf, 0}, /* 0xfb4e pe+rafe */ | |
| 6949 {0x5d0, 0x5dc, 0} /* 0xfb4f alef-lamed */ | |
| 6950 }; | |
| 6951 | |
| 6952 static void | |
|
7833
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
6953 mb_decompose(int c, int *c1, int *c2, int *c3) |
| 7 | 6954 { |
| 6955 decomp_T d; | |
| 6956 | |
|
4505
d037b9cbdaaa
updated for version 7.3.1000
Bram Moolenaar <bram@vim.org>
parents:
4466
diff
changeset
|
6957 if (c >= 0xfb20 && c <= 0xfb4f) |
| 7 | 6958 { |
| 6959 d = decomp_table[c - 0xfb20]; | |
| 6960 *c1 = d.a; | |
| 6961 *c2 = d.b; | |
| 6962 *c3 = d.c; | |
| 6963 } | |
| 6964 else | |
| 6965 { | |
| 6966 *c1 = c; | |
| 6967 *c2 = *c3 = 0; | |
| 6968 } | |
| 6969 } | |
| 6970 | |
| 6971 /* | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
6972 * Compare two strings, ignore case if rex.reg_ic set. |
| 7 | 6973 * Return 0 if strings match, non-zero otherwise. |
| 6974 * Correct the length "*n" when composing characters are ignored. | |
| 6975 */ | |
| 6976 static int | |
|
7833
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
6977 cstrncmp(char_u *s1, char_u *s2, int *n) |
| 7 | 6978 { |
| 6979 int result; | |
| 6980 | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
6981 if (!rex.reg_ic) |
| 7 | 6982 result = STRNCMP(s1, s2, *n); |
| 6983 else | |
| 6984 result = MB_STRNICMP(s1, s2, *n); | |
| 6985 | |
| 6986 /* 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
|
6987 if (result != 0 && enc_utf8 && rex.reg_icombine) |
| 7 | 6988 { |
| 6989 char_u *str1, *str2; | |
| 6990 int c1, c2, c11, c12; | |
| 6991 int junk; | |
| 6992 | |
| 6993 /* we have to handle the strcmp ourselves, since it is necessary to | |
| 6994 * deal with the composing characters by ignoring them: */ | |
| 6995 str1 = s1; | |
| 6996 str2 = s2; | |
| 6997 c1 = c2 = 0; | |
| 507 | 6998 while ((int)(str1 - s1) < *n) |
| 7 | 6999 { |
| 7000 c1 = mb_ptr2char_adv(&str1); | |
| 7001 c2 = mb_ptr2char_adv(&str2); | |
| 7002 | |
| 7003 /* decompose the character if necessary, into 'base' characters | |
| 7004 * because I don't care about Arabic, I will hard-code the Hebrew | |
| 7005 * 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
|
7006 if (c1 != c2 && (!rex.reg_ic || utf_fold(c1) != utf_fold(c2))) |
| 7 | 7007 { |
| 7008 /* decomposition necessary? */ | |
| 7009 mb_decompose(c1, &c11, &junk, &junk); | |
| 7010 mb_decompose(c2, &c12, &junk, &junk); | |
| 7011 c1 = c11; | |
| 7012 c2 = c12; | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7013 if (c11 != c12 |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7014 && (!rex.reg_ic || utf_fold(c11) != utf_fold(c12))) |
| 7 | 7015 break; |
| 7016 } | |
| 7017 } | |
| 7018 result = c2 - c1; | |
| 7019 if (result == 0) | |
| 7020 *n = (int)(str2 - s2); | |
| 7021 } | |
| 7022 | |
| 7023 return result; | |
| 7024 } | |
| 7025 | |
| 7026 /* | |
| 7027 * cstrchr: This function is used a lot for simple searches, keep it fast! | |
| 7028 */ | |
| 7029 static char_u * | |
|
7833
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
7030 cstrchr(char_u *s, int c) |
| 7 | 7031 { |
| 7032 char_u *p; | |
| 7033 int cc; | |
| 7034 | |
|
15603
639b8318472c
patch 8.1.0809: too many #ifdefs
Bram Moolenaar <Bram@vim.org>
parents:
15555
diff
changeset
|
7035 if (!rex.reg_ic || (!enc_utf8 && mb_char2len(c) > 1)) |
| 7 | 7036 return vim_strchr(s, c); |
| 7037 | |
| 7038 /* tolower() and toupper() can be slow, comparing twice should be a lot | |
| 7039 * faster (esp. when using MS Visual C++!). | |
| 7040 * For UTF-8 need to use folded case. */ | |
| 7041 if (enc_utf8 && c > 0x80) | |
| 7042 cc = utf_fold(c); | |
| 7043 else | |
| 1347 | 7044 if (MB_ISUPPER(c)) |
| 7045 cc = MB_TOLOWER(c); | |
| 7046 else if (MB_ISLOWER(c)) | |
| 7047 cc = MB_TOUPPER(c); | |
| 7 | 7048 else |
| 7049 return vim_strchr(s, c); | |
| 7050 | |
| 7051 if (has_mbyte) | |
| 7052 { | |
| 474 | 7053 for (p = s; *p != NUL; p += (*mb_ptr2len)(p)) |
| 7 | 7054 { |
| 7055 if (enc_utf8 && c > 0x80) | |
| 7056 { | |
| 7057 if (utf_fold(utf_ptr2char(p)) == cc) | |
| 7058 return p; | |
| 7059 } | |
| 7060 else if (*p == c || *p == cc) | |
| 7061 return p; | |
| 7062 } | |
| 7063 } | |
| 7064 else | |
| 7065 /* Faster version for when there are no multi-byte characters. */ | |
| 7066 for (p = s; *p != NUL; ++p) | |
| 7067 if (*p == c || *p == cc) | |
| 7068 return p; | |
| 7069 | |
| 7070 return NULL; | |
| 7071 } | |
| 7072 | |
| 7073 /*************************************************************** | |
| 7074 * regsub stuff * | |
| 7075 ***************************************************************/ | |
| 7076 | |
| 7077 /* | |
| 7078 * We should define ftpr as a pointer to a function returning a pointer to | |
| 7079 * a function returning a pointer to a function ... | |
| 7080 * This is impossible, so we declare a pointer to a function returning a | |
| 7081 * pointer to a function returning void. This should work for all compilers. | |
| 7082 */ | |
|
7805
0b6c37dd858d
commit https://github.com/vim/vim/commit/baaa7e9ec7398a813e21285c272fa99792642077
Christian Brabandt <cb@256bit.org>
parents:
7009
diff
changeset
|
7083 typedef void (*(*fptr_T)(int *, int))(); |
|
0b6c37dd858d
commit https://github.com/vim/vim/commit/baaa7e9ec7398a813e21285c272fa99792642077
Christian Brabandt <cb@256bit.org>
parents:
7009
diff
changeset
|
7084 |
|
9589
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parents:
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changeset
|
7085 static int vim_regsub_both(char_u *source, typval_T *expr, char_u *dest, int copy, int magic, int backslash); |
| 7 | 7086 |
| 772 | 7087 static fptr_T |
|
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diff
changeset
|
7088 do_upper(int *d, int c) |
| 7 | 7089 { |
| 772 | 7090 *d = MB_TOUPPER(c); |
| 7091 | |
| 7092 return (fptr_T)NULL; | |
| 7 | 7093 } |
| 7094 | |
| 772 | 7095 static fptr_T |
|
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diff
changeset
|
7096 do_Upper(int *d, int c) |
| 7 | 7097 { |
| 772 | 7098 *d = MB_TOUPPER(c); |
| 7099 | |
| 7100 return (fptr_T)do_Upper; | |
| 7101 } | |
| 7102 | |
| 7103 static fptr_T | |
|
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diff
changeset
|
7104 do_lower(int *d, int c) |
| 772 | 7105 { |
| 7106 *d = MB_TOLOWER(c); | |
| 7107 | |
| 7108 return (fptr_T)NULL; | |
| 7109 } | |
| 7110 | |
| 7111 static fptr_T | |
|
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diff
changeset
|
7112 do_Lower(int *d, int c) |
| 772 | 7113 { |
| 7114 *d = MB_TOLOWER(c); | |
| 7115 | |
| 7116 return (fptr_T)do_Lower; | |
| 7 | 7117 } |
| 7118 | |
| 7119 /* | |
| 7120 * regtilde(): Replace tildes in the pattern by the old pattern. | |
| 7121 * | |
| 7122 * Short explanation of the tilde: It stands for the previous replacement | |
| 7123 * pattern. If that previous pattern also contains a ~ we should go back a | |
| 7124 * step further... But we insert the previous pattern into the current one | |
| 7125 * and remember that. | |
| 772 | 7126 * This still does not handle the case where "magic" changes. So require the |
| 7127 * user to keep his hands off of "magic". | |
| 7 | 7128 * |
| 7129 * The tildes are parsed once before the first call to vim_regsub(). | |
| 7130 */ | |
| 7131 char_u * | |
|
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diff
changeset
|
7132 regtilde(char_u *source, int magic) |
| 7 | 7133 { |
| 7134 char_u *newsub = source; | |
| 7135 char_u *tmpsub; | |
| 7136 char_u *p; | |
| 7137 int len; | |
| 7138 int prevlen; | |
| 7139 | |
| 7140 for (p = newsub; *p; ++p) | |
| 7141 { | |
| 7142 if ((*p == '~' && magic) || (*p == '\\' && *(p + 1) == '~' && !magic)) | |
| 7143 { | |
| 7144 if (reg_prev_sub != NULL) | |
| 7145 { | |
| 7146 /* length = len(newsub) - 1 + len(prev_sub) + 1 */ | |
| 7147 prevlen = (int)STRLEN(reg_prev_sub); | |
| 7148 tmpsub = alloc((unsigned)(STRLEN(newsub) + prevlen)); | |
| 7149 if (tmpsub != NULL) | |
| 7150 { | |
| 7151 /* copy prefix */ | |
| 7152 len = (int)(p - newsub); /* not including ~ */ | |
| 7153 mch_memmove(tmpsub, newsub, (size_t)len); | |
| 1209 | 7154 /* interpret tilde */ |
| 7 | 7155 mch_memmove(tmpsub + len, reg_prev_sub, (size_t)prevlen); |
| 7156 /* copy postfix */ | |
| 7157 if (!magic) | |
| 7158 ++p; /* back off \ */ | |
| 7159 STRCPY(tmpsub + len + prevlen, p + 1); | |
| 7160 | |
| 7161 if (newsub != source) /* already allocated newsub */ | |
| 7162 vim_free(newsub); | |
| 7163 newsub = tmpsub; | |
| 7164 p = newsub + len + prevlen; | |
| 7165 } | |
| 7166 } | |
| 7167 else if (magic) | |
| 1621 | 7168 STRMOVE(p, p + 1); /* remove '~' */ |
| 7 | 7169 else |
| 1621 | 7170 STRMOVE(p, p + 2); /* remove '\~' */ |
| 7 | 7171 --p; |
| 7172 } | |
| 7173 else | |
| 7174 { | |
| 7175 if (*p == '\\' && p[1]) /* skip escaped characters */ | |
| 7176 ++p; | |
| 7177 if (has_mbyte) | |
| 474 | 7178 p += (*mb_ptr2len)(p) - 1; |
| 7 | 7179 } |
| 7180 } | |
| 7181 | |
| 7182 vim_free(reg_prev_sub); | |
| 7183 if (newsub != source) /* newsub was allocated, just keep it */ | |
| 7184 reg_prev_sub = newsub; | |
| 7185 else /* no ~ found, need to save newsub */ | |
| 7186 reg_prev_sub = vim_strsave(newsub); | |
| 7187 return newsub; | |
| 7188 } | |
| 7189 | |
| 7190 #ifdef FEAT_EVAL | |
| 7191 static int can_f_submatch = FALSE; /* TRUE when submatch() can be used */ | |
| 7192 | |
|
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|
7193 /* These pointers are used for reg_submatch(). Needed for when the |
|
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|
7194 * substitution string is an expression that contains a call to substitute() |
|
d76ccdacb41e
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7195 * and submatch(). */ |
|
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|
7196 typedef struct { |
|
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7197 regmatch_T *sm_match; |
|
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|
7198 regmmatch_T *sm_mmatch; |
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7199 linenr_T sm_firstlnum; |
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7200 linenr_T sm_maxline; |
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7201 int sm_line_lbr; |
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7202 } regsubmatch_T; |
|
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|
7203 |
|
d76ccdacb41e
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|
7204 static regsubmatch_T rsm; /* can only be used when can_f_submatch is TRUE */ |
| 7 | 7205 #endif |
| 7206 | |
| 7207 #if defined(FEAT_MODIFY_FNAME) || defined(FEAT_EVAL) || defined(PROTO) | |
|
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7208 |
|
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|
7209 /* |
|
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|
7210 * Put the submatches in "argv[0]" which is a list passed into call_func() by |
|
172131507c85
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|
7211 * vim_regsub_both(). |
|
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7212 */ |
|
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|
7213 static int |
|
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|
7214 fill_submatch_list(int argc UNUSED, typval_T *argv, int argcount) |
|
172131507c85
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|
7215 { |
|
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|
7216 listitem_T *li; |
|
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|
7217 int i; |
|
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|
7218 char_u *s; |
|
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diff
changeset
|
7219 |
|
172131507c85
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|
7220 if (argcount == 0) |
|
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diff
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|
7221 /* called function doesn't take an argument */ |
|
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changeset
|
7222 return 0; |
|
172131507c85
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changeset
|
7223 |
|
172131507c85
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diff
changeset
|
7224 /* Relies on sl_list to be the first item in staticList10_T. */ |
|
172131507c85
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parents:
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diff
changeset
|
7225 init_static_list((staticList10_T *)(argv->vval.v_list)); |
|
172131507c85
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changeset
|
7226 |
|
172131507c85
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parents:
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diff
changeset
|
7227 /* There are always 10 list items in staticList10_T. */ |
|
172131507c85
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diff
changeset
|
7228 li = argv->vval.v_list->lv_first; |
|
172131507c85
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changeset
|
7229 for (i = 0; i < 10; ++i) |
|
172131507c85
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|
7230 { |
|
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diff
changeset
|
7231 s = rsm.sm_match->startp[i]; |
|
d76ccdacb41e
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diff
changeset
|
7232 if (s == NULL || rsm.sm_match->endp[i] == NULL) |
|
9626
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|
7233 s = NULL; |
|
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|
7234 else |
|
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diff
changeset
|
7235 s = vim_strnsave(s, (int)(rsm.sm_match->endp[i] - s)); |
|
9626
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changeset
|
7236 li->li_tv.v_type = VAR_STRING; |
|
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diff
changeset
|
7237 li->li_tv.vval.v_string = s; |
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diff
changeset
|
7238 li = li->li_next; |
|
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|
7239 } |
|
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changeset
|
7240 return 1; |
|
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|
7241 } |
|
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changeset
|
7242 |
|
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diff
changeset
|
7243 static void |
|
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changeset
|
7244 clear_submatch_list(staticList10_T *sl) |
|
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changeset
|
7245 { |
|
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changeset
|
7246 int i; |
|
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changeset
|
7247 |
|
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changeset
|
7248 for (i = 0; i < 10; ++i) |
|
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changeset
|
7249 vim_free(sl->sl_items[i].li_tv.vval.v_string); |
|
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changeset
|
7250 } |
|
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changeset
|
7251 |
| 7 | 7252 /* |
| 7253 * vim_regsub() - perform substitutions after a vim_regexec() or | |
| 7254 * vim_regexec_multi() match. | |
| 7255 * | |
| 7256 * If "copy" is TRUE really copy into "dest". | |
| 7257 * If "copy" is FALSE nothing is copied, this is just to find out the length | |
| 7258 * of the result. | |
| 7259 * | |
| 7260 * If "backslash" is TRUE, a backslash will be removed later, need to double | |
| 7261 * them to keep them, and insert a backslash before a CR to avoid it being | |
| 7262 * replaced with a line break later. | |
| 7263 * | |
| 7264 * Note: The matched text must not change between the call of | |
| 7265 * vim_regexec()/vim_regexec_multi() and vim_regsub()! It would make the back | |
| 7266 * references invalid! | |
| 7267 * | |
| 7268 * Returns the size of the replacement, including terminating NUL. | |
| 7269 */ | |
| 7270 int | |
|
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diff
changeset
|
7271 vim_regsub( |
|
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changeset
|
7272 regmatch_T *rmp, |
|
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changeset
|
7273 char_u *source, |
|
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changeset
|
7274 typval_T *expr, |
|
7833
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
7275 char_u *dest, |
|
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
7276 int copy, |
|
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
7277 int magic, |
|
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
7278 int backslash) |
| 7 | 7279 { |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7280 int result; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7281 regexec_T rex_save; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7282 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
|
7283 |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7284 if (rex_in_use) |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7285 /* Being called recursively, save the state. */ |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7286 rex_save = rex; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7287 rex_in_use = TRUE; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7288 |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7289 rex.reg_match = rmp; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7290 rex.reg_mmatch = NULL; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7291 rex.reg_maxline = 0; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7292 rex.reg_buf = curbuf; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7293 rex.reg_line_lbr = TRUE; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7294 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
|
7295 |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7296 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
|
7297 if (rex_in_use) |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7298 rex = rex_save; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7299 |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7300 return result; |
| 7 | 7301 } |
| 7302 #endif | |
| 7303 | |
| 7304 int | |
|
7833
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
7305 vim_regsub_multi( |
|
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
7306 regmmatch_T *rmp, |
|
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
7307 linenr_T lnum, |
|
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
7308 char_u *source, |
|
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
7309 char_u *dest, |
|
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
7310 int copy, |
|
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
7311 int magic, |
|
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
7312 int backslash) |
| 7 | 7313 { |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7314 int result; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7315 regexec_T rex_save; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7316 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
|
7317 |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7318 if (rex_in_use) |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7319 /* Being called recursively, save the state. */ |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7320 rex_save = rex; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7321 rex_in_use = TRUE; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7322 |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7323 rex.reg_match = NULL; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7324 rex.reg_mmatch = rmp; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7325 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
|
7326 rex.reg_firstlnum = lnum; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7327 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
|
7328 rex.reg_line_lbr = FALSE; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7329 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
|
7330 |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7331 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
|
7332 if (rex_in_use) |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7333 rex = rex_save; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7334 |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7335 return result; |
| 7 | 7336 } |
| 7337 | |
| 7338 static int | |
|
7833
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
7339 vim_regsub_both( |
|
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
7340 char_u *source, |
|
9589
bf204ab1ce7d
commit https://github.com/vim/vim/commit/72ab729c3dcdea0fba44d8e676602c847e841bcd
Christian Brabandt <cb@256bit.org>
parents:
9015
diff
changeset
|
7341 typval_T *expr, |
|
7833
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
7342 char_u *dest, |
|
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
7343 int copy, |
|
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
7344 int magic, |
|
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
7345 int backslash) |
| 7 | 7346 { |
| 7347 char_u *src; | |
| 7348 char_u *dst; | |
| 7349 char_u *s; | |
| 7350 int c; | |
| 772 | 7351 int cc; |
| 7 | 7352 int no = -1; |
| 4244 | 7353 fptr_T func_all = (fptr_T)NULL; |
| 7354 fptr_T func_one = (fptr_T)NULL; | |
| 7 | 7355 linenr_T clnum = 0; /* init for GCC */ |
| 7356 int len = 0; /* init for GCC */ | |
| 7357 #ifdef FEAT_EVAL | |
|
9589
bf204ab1ce7d
commit https://github.com/vim/vim/commit/72ab729c3dcdea0fba44d8e676602c847e841bcd
Christian Brabandt <cb@256bit.org>
parents:
9015
diff
changeset
|
7358 static char_u *eval_result = NULL; |
| 7 | 7359 #endif |
| 7360 | |
| 7361 /* Be paranoid... */ | |
|
9589
bf204ab1ce7d
commit https://github.com/vim/vim/commit/72ab729c3dcdea0fba44d8e676602c847e841bcd
Christian Brabandt <cb@256bit.org>
parents:
9015
diff
changeset
|
7362 if ((source == NULL && expr == NULL) || dest == NULL) |
| 7 | 7363 { |
|
15470
55ccc2d353bd
patch 8.1.0743: giving error messages is not flexible
Bram Moolenaar <Bram@vim.org>
parents:
15339
diff
changeset
|
7364 emsg(_(e_null)); |
| 7 | 7365 return 0; |
| 7366 } | |
| 7367 if (prog_magic_wrong()) | |
| 7368 return 0; | |
| 7369 src = source; | |
| 7370 dst = dest; | |
| 7371 | |
| 7372 /* | |
| 7373 * When the substitute part starts with "\=" evaluate it as an expression. | |
| 7374 */ | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7375 if (expr != NULL || (source[0] == '\\' && source[1] == '=')) |
| 7 | 7376 { |
| 7377 #ifdef FEAT_EVAL | |
| 7378 /* To make sure that the length doesn't change between checking the | |
| 7379 * length and copying the string, and to speed up things, the | |
| 7380 * resulting string is saved from the call with "copy" == FALSE to the | |
| 7381 * call with "copy" == TRUE. */ | |
| 7382 if (copy) | |
| 7383 { | |
| 7384 if (eval_result != NULL) | |
| 7385 { | |
| 7386 STRCPY(dest, eval_result); | |
| 7387 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
|
7388 VIM_CLEAR(eval_result); |
| 7 | 7389 } |
| 7390 } | |
| 7391 else | |
| 7392 { | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7393 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
|
7394 regsubmatch_T rsm_save; |
| 7 | 7395 |
| 7396 vim_free(eval_result); | |
| 7397 | |
| 7398 /* The expression may contain substitute(), which calls us | |
| 7399 * 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
|
7400 * level. */ |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7401 if (can_f_submatch) |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7402 rsm_save = rsm; |
| 7 | 7403 can_f_submatch = TRUE; |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7404 rsm.sm_match = rex.reg_match; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7405 rsm.sm_mmatch = rex.reg_mmatch; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7406 rsm.sm_firstlnum = rex.reg_firstlnum; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7407 rsm.sm_maxline = rex.reg_maxline; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7408 rsm.sm_line_lbr = rex.reg_line_lbr; |
| 7 | 7409 |
|
9589
bf204ab1ce7d
commit https://github.com/vim/vim/commit/72ab729c3dcdea0fba44d8e676602c847e841bcd
Christian Brabandt <cb@256bit.org>
parents:
9015
diff
changeset
|
7410 if (expr != NULL) |
|
bf204ab1ce7d
commit https://github.com/vim/vim/commit/72ab729c3dcdea0fba44d8e676602c847e841bcd
Christian Brabandt <cb@256bit.org>
parents:
9015
diff
changeset
|
7411 { |
|
9626
172131507c85
commit https://github.com/vim/vim/commit/df48fb456fb6bf63d94cad9b302ff01d8ee8d311
Christian Brabandt <cb@256bit.org>
parents:
9589
diff
changeset
|
7412 typval_T argv[2]; |
|
9589
bf204ab1ce7d
commit https://github.com/vim/vim/commit/72ab729c3dcdea0fba44d8e676602c847e841bcd
Christian Brabandt <cb@256bit.org>
parents:
9015
diff
changeset
|
7413 int dummy; |
|
bf204ab1ce7d
commit https://github.com/vim/vim/commit/72ab729c3dcdea0fba44d8e676602c847e841bcd
Christian Brabandt <cb@256bit.org>
parents:
9015
diff
changeset
|
7414 char_u buf[NUMBUFLEN]; |
|
bf204ab1ce7d
commit https://github.com/vim/vim/commit/72ab729c3dcdea0fba44d8e676602c847e841bcd
Christian Brabandt <cb@256bit.org>
parents:
9015
diff
changeset
|
7415 typval_T rettv; |
|
9626
172131507c85
commit https://github.com/vim/vim/commit/df48fb456fb6bf63d94cad9b302ff01d8ee8d311
Christian Brabandt <cb@256bit.org>
parents:
9589
diff
changeset
|
7416 staticList10_T matchList; |
|
9589
bf204ab1ce7d
commit https://github.com/vim/vim/commit/72ab729c3dcdea0fba44d8e676602c847e841bcd
Christian Brabandt <cb@256bit.org>
parents:
9015
diff
changeset
|
7417 |
|
bf204ab1ce7d
commit https://github.com/vim/vim/commit/72ab729c3dcdea0fba44d8e676602c847e841bcd
Christian Brabandt <cb@256bit.org>
parents:
9015
diff
changeset
|
7418 rettv.v_type = VAR_STRING; |
|
bf204ab1ce7d
commit https://github.com/vim/vim/commit/72ab729c3dcdea0fba44d8e676602c847e841bcd
Christian Brabandt <cb@256bit.org>
parents:
9015
diff
changeset
|
7419 rettv.vval.v_string = NULL; |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7420 argv[0].v_type = VAR_LIST; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7421 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
|
7422 matchList.sl_list.lv_len = 0; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7423 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
|
7424 { |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7425 s = expr->vval.v_string; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7426 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
|
7427 1, argv, fill_submatch_list, |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7428 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
|
7429 } |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7430 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
|
7431 { |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7432 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
|
7433 |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7434 s = partial_name(partial); |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7435 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
|
7436 1, argv, fill_submatch_list, |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7437 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
|
7438 } |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7439 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
|
7440 /* fill_submatch_list() was called */ |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7441 clear_submatch_list(&matchList); |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7442 |
|
15211
de63593896b3
patch 8.1.0615: get_tv function names are not consistent
Bram Moolenaar <Bram@vim.org>
parents:
14862
diff
changeset
|
7443 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
|
7444 if (eval_result != NULL) |
|
bf204ab1ce7d
commit https://github.com/vim/vim/commit/72ab729c3dcdea0fba44d8e676602c847e841bcd
Christian Brabandt <cb@256bit.org>
parents:
9015
diff
changeset
|
7445 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
|
7446 clear_tv(&rettv); |
|
9589
bf204ab1ce7d
commit https://github.com/vim/vim/commit/72ab729c3dcdea0fba44d8e676602c847e841bcd
Christian Brabandt <cb@256bit.org>
parents:
9015
diff
changeset
|
7447 } |
|
bf204ab1ce7d
commit https://github.com/vim/vim/commit/72ab729c3dcdea0fba44d8e676602c847e841bcd
Christian Brabandt <cb@256bit.org>
parents:
9015
diff
changeset
|
7448 else |
|
bf204ab1ce7d
commit https://github.com/vim/vim/commit/72ab729c3dcdea0fba44d8e676602c847e841bcd
Christian Brabandt <cb@256bit.org>
parents:
9015
diff
changeset
|
7449 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
|
7450 |
| 7 | 7451 if (eval_result != NULL) |
| 7452 { | |
|
2125
b8744d1982d1
updated for version 7.2.407
Bram Moolenaar <bram@zimbu.org>
parents:
2012
diff
changeset
|
7453 int had_backslash = FALSE; |
|
b8744d1982d1
updated for version 7.2.407
Bram Moolenaar <bram@zimbu.org>
parents:
2012
diff
changeset
|
7454 |
|
11127
506f5d8b7d8b
patch 8.0.0451: some macros are in lower case
Christian Brabandt <cb@256bit.org>
parents:
11121
diff
changeset
|
7455 for (s = eval_result; *s != NUL; MB_PTR_ADV(s)) |
| 7 | 7456 { |
| 2904 | 7457 /* Change NL to CR, so that it becomes a line break, |
| 7458 * unless called from vim_regexec_nl(). | |
| 7 | 7459 * Skip over a backslashed character. */ |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7460 if (*s == NL && !rsm.sm_line_lbr) |
| 7 | 7461 *s = CAR; |
| 7462 else if (*s == '\\' && s[1] != NUL) | |
|
2125
b8744d1982d1
updated for version 7.2.407
Bram Moolenaar <bram@zimbu.org>
parents:
2012
diff
changeset
|
7463 { |
| 7 | 7464 ++s; |
| 2173 | 7465 /* Change NL to CR here too, so that this works: |
| 7466 * :s/abc\\\ndef/\="aaa\\\nbbb"/ on text: | |
| 7467 * abc\ | |
| 7468 * def | |
| 2904 | 7469 * Not when called from vim_regexec_nl(). |
| 2173 | 7470 */ |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7471 if (*s == NL && !rsm.sm_line_lbr) |
| 2173 | 7472 *s = CAR; |
|
2125
b8744d1982d1
updated for version 7.2.407
Bram Moolenaar <bram@zimbu.org>
parents:
2012
diff
changeset
|
7473 had_backslash = TRUE; |
|
b8744d1982d1
updated for version 7.2.407
Bram Moolenaar <bram@zimbu.org>
parents:
2012
diff
changeset
|
7474 } |
|
b8744d1982d1
updated for version 7.2.407
Bram Moolenaar <bram@zimbu.org>
parents:
2012
diff
changeset
|
7475 } |
|
b8744d1982d1
updated for version 7.2.407
Bram Moolenaar <bram@zimbu.org>
parents:
2012
diff
changeset
|
7476 if (had_backslash && backslash) |
|
b8744d1982d1
updated for version 7.2.407
Bram Moolenaar <bram@zimbu.org>
parents:
2012
diff
changeset
|
7477 { |
|
b8744d1982d1
updated for version 7.2.407
Bram Moolenaar <bram@zimbu.org>
parents:
2012
diff
changeset
|
7478 /* Backslashes will be consumed, need to double them. */ |
|
b8744d1982d1
updated for version 7.2.407
Bram Moolenaar <bram@zimbu.org>
parents:
2012
diff
changeset
|
7479 s = vim_strsave_escaped(eval_result, (char_u *)"\\"); |
|
b8744d1982d1
updated for version 7.2.407
Bram Moolenaar <bram@zimbu.org>
parents:
2012
diff
changeset
|
7480 if (s != NULL) |
|
b8744d1982d1
updated for version 7.2.407
Bram Moolenaar <bram@zimbu.org>
parents:
2012
diff
changeset
|
7481 { |
|
b8744d1982d1
updated for version 7.2.407
Bram Moolenaar <bram@zimbu.org>
parents:
2012
diff
changeset
|
7482 vim_free(eval_result); |
|
b8744d1982d1
updated for version 7.2.407
Bram Moolenaar <bram@zimbu.org>
parents:
2012
diff
changeset
|
7483 eval_result = s; |
|
b8744d1982d1
updated for version 7.2.407
Bram Moolenaar <bram@zimbu.org>
parents:
2012
diff
changeset
|
7484 } |
| 7 | 7485 } |
| 7486 | |
| 7487 dst += STRLEN(eval_result); | |
| 7488 } | |
| 7489 | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7490 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
|
7491 if (can_f_submatch) |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7492 rsm = rsm_save; |
| 7 | 7493 } |
| 7494 #endif | |
| 7495 } | |
| 7496 else | |
| 7497 while ((c = *src++) != NUL) | |
| 7498 { | |
| 7499 if (c == '&' && magic) | |
| 7500 no = 0; | |
| 7501 else if (c == '\\' && *src != NUL) | |
| 7502 { | |
| 7503 if (*src == '&' && !magic) | |
| 7504 { | |
| 7505 ++src; | |
| 7506 no = 0; | |
| 7507 } | |
| 7508 else if ('0' <= *src && *src <= '9') | |
| 7509 { | |
| 7510 no = *src++ - '0'; | |
| 7511 } | |
| 7512 else if (vim_strchr((char_u *)"uUlLeE", *src)) | |
| 7513 { | |
| 7514 switch (*src++) | |
| 7515 { | |
| 4244 | 7516 case 'u': func_one = (fptr_T)do_upper; |
| 7 | 7517 continue; |
| 4244 | 7518 case 'U': func_all = (fptr_T)do_Upper; |
| 7 | 7519 continue; |
| 4244 | 7520 case 'l': func_one = (fptr_T)do_lower; |
| 7 | 7521 continue; |
| 4244 | 7522 case 'L': func_all = (fptr_T)do_Lower; |
| 7 | 7523 continue; |
| 7524 case 'e': | |
| 4244 | 7525 case 'E': func_one = func_all = (fptr_T)NULL; |
| 7 | 7526 continue; |
| 7527 } | |
| 7528 } | |
| 7529 } | |
| 7530 if (no < 0) /* Ordinary character. */ | |
| 7531 { | |
| 798 | 7532 if (c == K_SPECIAL && src[0] != NUL && src[1] != NUL) |
| 7533 { | |
| 1209 | 7534 /* Copy a special key as-is. */ |
| 798 | 7535 if (copy) |
| 7536 { | |
| 7537 *dst++ = c; | |
| 7538 *dst++ = *src++; | |
| 7539 *dst++ = *src++; | |
| 7540 } | |
| 7541 else | |
| 7542 { | |
| 7543 dst += 3; | |
| 7544 src += 2; | |
| 7545 } | |
| 7546 continue; | |
| 7547 } | |
| 7548 | |
| 7 | 7549 if (c == '\\' && *src != NUL) |
| 7550 { | |
| 7551 /* Check for abbreviations -- webb */ | |
| 7552 switch (*src) | |
| 7553 { | |
| 7554 case 'r': c = CAR; ++src; break; | |
| 7555 case 'n': c = NL; ++src; break; | |
| 7556 case 't': c = TAB; ++src; break; | |
| 7557 /* Oh no! \e already has meaning in subst pat :-( */ | |
| 7558 /* case 'e': c = ESC; ++src; break; */ | |
| 7559 case 'b': c = Ctrl_H; ++src; break; | |
| 7560 | |
| 7561 /* If "backslash" is TRUE the backslash will be removed | |
| 7562 * later. Used to insert a literal CR. */ | |
| 7563 default: if (backslash) | |
| 7564 { | |
| 7565 if (copy) | |
| 7566 *dst = '\\'; | |
| 7567 ++dst; | |
| 7568 } | |
| 7569 c = *src++; | |
| 7570 } | |
| 7571 } | |
| 798 | 7572 else if (has_mbyte) |
| 7573 c = mb_ptr2char(src - 1); | |
| 7 | 7574 |
| 7575 /* Write to buffer, if copy is set. */ | |
| 4244 | 7576 if (func_one != (fptr_T)NULL) |
| 7577 /* Turbo C complains without the typecast */ | |
| 7578 func_one = (fptr_T)(func_one(&cc, c)); | |
| 7579 else if (func_all != (fptr_T)NULL) | |
| 7580 /* Turbo C complains without the typecast */ | |
| 7581 func_all = (fptr_T)(func_all(&cc, c)); | |
| 7582 else /* just copy */ | |
| 772 | 7583 cc = c; |
| 7584 | |
| 7585 if (has_mbyte) | |
| 7 | 7586 { |
|
2307
81527f127fb1
Fix: Composing characters in :s substitute text were dropped.
Bram Moolenaar <bram@vim.org>
parents:
2247
diff
changeset
|
7587 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
|
7588 |
| 7 | 7589 if (copy) |
| 772 | 7590 mb_char2bytes(cc, dst); |
| 7591 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
|
7592 if (enc_utf8) |
|
81527f127fb1
Fix: Composing characters in :s substitute text were dropped.
Bram Moolenaar <bram@vim.org>
parents:
2247
diff
changeset
|
7593 { |
|
81527f127fb1
Fix: Composing characters in :s substitute text were dropped.
Bram Moolenaar <bram@vim.org>
parents:
2247
diff
changeset
|
7594 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
|
7595 |
|
81527f127fb1
Fix: Composing characters in :s substitute text were dropped.
Bram Moolenaar <bram@vim.org>
parents:
2247
diff
changeset
|
7596 /* 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
|
7597 * 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
|
7598 if (clen < totlen) |
|
81527f127fb1
Fix: Composing characters in :s substitute text were dropped.
Bram Moolenaar <bram@vim.org>
parents:
2247
diff
changeset
|
7599 { |
|
81527f127fb1
Fix: Composing characters in :s substitute text were dropped.
Bram Moolenaar <bram@vim.org>
parents:
2247
diff
changeset
|
7600 if (copy) |
|
81527f127fb1
Fix: Composing characters in :s substitute text were dropped.
Bram Moolenaar <bram@vim.org>
parents:
2247
diff
changeset
|
7601 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
|
7602 (size_t)(totlen - clen)); |
|
81527f127fb1
Fix: Composing characters in :s substitute text were dropped.
Bram Moolenaar <bram@vim.org>
parents:
2247
diff
changeset
|
7603 dst += totlen - clen; |
|
81527f127fb1
Fix: Composing characters in :s substitute text were dropped.
Bram Moolenaar <bram@vim.org>
parents:
2247
diff
changeset
|
7604 } |
|
81527f127fb1
Fix: Composing characters in :s substitute text were dropped.
Bram Moolenaar <bram@vim.org>
parents:
2247
diff
changeset
|
7605 } |
|
81527f127fb1
Fix: Composing characters in :s substitute text were dropped.
Bram Moolenaar <bram@vim.org>
parents:
2247
diff
changeset
|
7606 src += totlen - 1; |
| 7 | 7607 } |
|
15603
639b8318472c
patch 8.1.0809: too many #ifdefs
Bram Moolenaar <Bram@vim.org>
parents:
15555
diff
changeset
|
7608 else if (copy) |
| 772 | 7609 *dst = cc; |
| 7 | 7610 dst++; |
| 7611 } | |
| 7612 else | |
| 7613 { | |
| 7614 if (REG_MULTI) | |
| 7615 { | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7616 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
|
7617 if (clnum < 0 || rex.reg_mmatch->endpos[no].lnum < 0) |
| 7 | 7618 s = NULL; |
| 7619 else | |
| 7620 { | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7621 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
|
7622 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
|
7623 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
|
7624 - rex.reg_mmatch->startpos[no].col; |
| 7 | 7625 else |
| 7626 len = (int)STRLEN(s); | |
| 7627 } | |
| 7628 } | |
| 7629 else | |
| 7630 { | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7631 s = rex.reg_match->startp[no]; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7632 if (rex.reg_match->endp[no] == NULL) |
| 7 | 7633 s = NULL; |
| 7634 else | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7635 len = (int)(rex.reg_match->endp[no] - s); |
| 7 | 7636 } |
| 7637 if (s != NULL) | |
| 7638 { | |
| 7639 for (;;) | |
| 7640 { | |
| 7641 if (len == 0) | |
| 7642 { | |
| 7643 if (REG_MULTI) | |
| 7644 { | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7645 if (rex.reg_mmatch->endpos[no].lnum == clnum) |
| 7 | 7646 break; |
| 7647 if (copy) | |
| 7648 *dst = CAR; | |
| 7649 ++dst; | |
| 7650 s = reg_getline(++clnum); | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7651 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
|
7652 len = rex.reg_mmatch->endpos[no].col; |
| 7 | 7653 else |
| 7654 len = (int)STRLEN(s); | |
| 7655 } | |
| 7656 else | |
| 7657 break; | |
| 7658 } | |
| 7659 else if (*s == NUL) /* we hit NUL. */ | |
| 7660 { | |
| 7661 if (copy) | |
|
15470
55ccc2d353bd
patch 8.1.0743: giving error messages is not flexible
Bram Moolenaar <Bram@vim.org>
parents:
15339
diff
changeset
|
7662 emsg(_(e_re_damg)); |
| 7 | 7663 goto exit; |
| 7664 } | |
| 7665 else | |
| 7666 { | |
| 7667 if (backslash && (*s == CAR || *s == '\\')) | |
| 7668 { | |
| 7669 /* | |
| 7670 * Insert a backslash in front of a CR, otherwise | |
| 7671 * it will be replaced by a line break. | |
| 7672 * Number of backslashes will be halved later, | |
| 7673 * double them here. | |
| 7674 */ | |
| 7675 if (copy) | |
| 7676 { | |
| 7677 dst[0] = '\\'; | |
| 7678 dst[1] = *s; | |
| 7679 } | |
| 7680 dst += 2; | |
| 7681 } | |
| 7682 else | |
| 7683 { | |
| 772 | 7684 if (has_mbyte) |
| 7685 c = mb_ptr2char(s); | |
| 7686 else | |
| 7687 c = *s; | |
| 7688 | |
| 4244 | 7689 if (func_one != (fptr_T)NULL) |
| 7690 /* Turbo C complains without the typecast */ | |
| 7691 func_one = (fptr_T)(func_one(&cc, c)); | |
| 7692 else if (func_all != (fptr_T)NULL) | |
| 7693 /* Turbo C complains without the typecast */ | |
| 7694 func_all = (fptr_T)(func_all(&cc, c)); | |
| 7695 else /* just copy */ | |
| 772 | 7696 cc = c; |
| 7697 | |
| 7698 if (has_mbyte) | |
| 7 | 7699 { |
| 1332 | 7700 int l; |
| 7701 | |
| 7702 /* Copy composing characters separately, one | |
| 7703 * at a time. */ | |
| 7704 if (enc_utf8) | |
| 7705 l = utf_ptr2len(s) - 1; | |
| 7706 else | |
| 7707 l = mb_ptr2len(s) - 1; | |
| 772 | 7708 |
| 7709 s += l; | |
| 7710 len -= l; | |
| 7711 if (copy) | |
| 7712 mb_char2bytes(cc, dst); | |
| 7713 dst += mb_char2len(cc) - 1; | |
| 7 | 7714 } |
|
15603
639b8318472c
patch 8.1.0809: too many #ifdefs
Bram Moolenaar <Bram@vim.org>
parents:
15555
diff
changeset
|
7715 else if (copy) |
| 772 | 7716 *dst = cc; |
| 7717 dst++; | |
| 7 | 7718 } |
| 772 | 7719 |
| 7 | 7720 ++s; |
| 7721 --len; | |
| 7722 } | |
| 7723 } | |
| 7724 } | |
| 7725 no = -1; | |
| 7726 } | |
| 7727 } | |
| 7728 if (copy) | |
| 7729 *dst = NUL; | |
| 7730 | |
| 7731 exit: | |
| 7732 return (int)((dst - dest) + 1); | |
| 7733 } | |
| 7734 | |
| 7735 #ifdef FEAT_EVAL | |
| 7736 /* | |
| 2011 | 7737 * Call reg_getline() with the line numbers from the submatch. If a |
| 7738 * substitute() was used the reg_maxline and other values have been | |
| 7739 * overwritten. | |
| 7740 */ | |
| 7741 static char_u * | |
|
7833
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
7742 reg_getline_submatch(linenr_T lnum) |
| 2011 | 7743 { |
| 7744 char_u *s; | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7745 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
|
7746 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
|
7747 |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7748 rex.reg_firstlnum = rsm.sm_firstlnum; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7749 rex.reg_maxline = rsm.sm_maxline; |
| 2011 | 7750 |
| 7751 s = reg_getline(lnum); | |
| 7752 | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7753 rex.reg_firstlnum = save_first; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7754 rex.reg_maxline = save_max; |
| 2011 | 7755 return s; |
| 7756 } | |
| 7757 | |
| 7758 /* | |
| 1209 | 7759 * Used for the submatch() function: get the string from the n'th submatch in |
| 7 | 7760 * allocated memory. |
| 7761 * Returns NULL when not in a ":s" command and for a non-existing submatch. | |
| 7762 */ | |
| 7763 char_u * | |
|
7833
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
7764 reg_submatch(int no) |
| 7 | 7765 { |
| 7766 char_u *retval = NULL; | |
| 7767 char_u *s; | |
| 7768 int len; | |
| 7769 int round; | |
| 7770 linenr_T lnum; | |
| 7771 | |
| 840 | 7772 if (!can_f_submatch || no < 0) |
| 7 | 7773 return NULL; |
| 7774 | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7775 if (rsm.sm_match == NULL) |
| 7 | 7776 { |
| 7777 /* | |
| 7778 * First round: compute the length and allocate memory. | |
| 7779 * Second round: copy the text. | |
| 7780 */ | |
| 7781 for (round = 1; round <= 2; ++round) | |
| 7782 { | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7783 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
|
7784 if (lnum < 0 || rsm.sm_mmatch->endpos[no].lnum < 0) |
| 7 | 7785 return NULL; |
| 7786 | |
|
16040
13ab270dd68d
patch 8.1.1025: checking NULL pointer after addition
Bram Moolenaar <Bram@vim.org>
parents:
15967
diff
changeset
|
7787 s = reg_getline_submatch(lnum); |
|
13ab270dd68d
patch 8.1.1025: checking NULL pointer after addition
Bram Moolenaar <Bram@vim.org>
parents:
15967
diff
changeset
|
7788 if (s == NULL) // anti-crash check, cannot happen? |
| 7 | 7789 break; |
|
16040
13ab270dd68d
patch 8.1.1025: checking NULL pointer after addition
Bram Moolenaar <Bram@vim.org>
parents:
15967
diff
changeset
|
7790 s += rsm.sm_mmatch->startpos[no].col; |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7791 if (rsm.sm_mmatch->endpos[no].lnum == lnum) |
| 7 | 7792 { |
| 7793 /* 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
|
7794 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
|
7795 - rsm.sm_mmatch->startpos[no].col; |
| 7 | 7796 if (round == 2) |
| 418 | 7797 vim_strncpy(retval, s, len); |
| 7 | 7798 ++len; |
| 7799 } | |
| 7800 else | |
| 7801 { | |
| 7802 /* Multiple lines: take start line from start col, middle | |
| 7803 * lines completely and end line up to end col. */ | |
| 7804 len = (int)STRLEN(s); | |
| 7805 if (round == 2) | |
| 7806 { | |
| 7807 STRCPY(retval, s); | |
| 7808 retval[len] = '\n'; | |
| 7809 } | |
| 7810 ++len; | |
| 7811 ++lnum; | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7812 while (lnum < rsm.sm_mmatch->endpos[no].lnum) |
| 7 | 7813 { |
| 2011 | 7814 s = reg_getline_submatch(lnum++); |
| 7 | 7815 if (round == 2) |
| 7816 STRCPY(retval + len, s); | |
| 7817 len += (int)STRLEN(s); | |
| 7818 if (round == 2) | |
| 7819 retval[len] = '\n'; | |
| 7820 ++len; | |
| 7821 } | |
| 7822 if (round == 2) | |
| 2011 | 7823 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
|
7824 rsm.sm_mmatch->endpos[no].col); |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7825 len += rsm.sm_mmatch->endpos[no].col; |
| 7 | 7826 if (round == 2) |
| 7827 retval[len] = NUL; | |
| 7828 ++len; | |
| 7829 } | |
| 7830 | |
| 840 | 7831 if (retval == NULL) |
| 7 | 7832 { |
| 7833 retval = lalloc((long_u)len, TRUE); | |
| 840 | 7834 if (retval == NULL) |
| 7 | 7835 return NULL; |
| 7836 } | |
| 7837 } | |
| 7838 } | |
| 7839 else | |
| 7840 { | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7841 s = rsm.sm_match->startp[no]; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7842 if (s == NULL || rsm.sm_match->endp[no] == NULL) |
| 7 | 7843 retval = NULL; |
| 7844 else | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7845 retval = vim_strnsave(s, (int)(rsm.sm_match->endp[no] - s)); |
| 7 | 7846 } |
| 7847 | |
| 7848 return retval; | |
| 7849 } | |
| 5794 | 7850 |
| 7851 /* | |
| 7852 * Used for the submatch() function with the optional non-zero argument: get | |
| 7853 * the list of strings from the n'th submatch in allocated memory with NULs | |
| 7854 * represented in NLs. | |
| 7855 * Returns a list of allocated strings. Returns NULL when not in a ":s" | |
| 7856 * command, for a non-existing submatch and for any error. | |
| 7857 */ | |
| 7858 list_T * | |
|
7833
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
7859 reg_submatch_list(int no) |
| 5794 | 7860 { |
| 7861 char_u *s; | |
| 7862 linenr_T slnum; | |
| 7863 linenr_T elnum; | |
| 7864 colnr_T scol; | |
| 7865 colnr_T ecol; | |
| 7866 int i; | |
| 7867 list_T *list; | |
| 7868 int error = FALSE; | |
| 7869 | |
| 7870 if (!can_f_submatch || no < 0) | |
| 7871 return NULL; | |
| 7872 | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7873 if (rsm.sm_match == NULL) |
| 5794 | 7874 { |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7875 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
|
7876 elnum = rsm.sm_mmatch->endpos[no].lnum; |
| 5794 | 7877 if (slnum < 0 || elnum < 0) |
| 7878 return NULL; | |
| 7879 | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7880 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
|
7881 ecol = rsm.sm_mmatch->endpos[no].col; |
| 5794 | 7882 |
| 7883 list = list_alloc(); | |
| 7884 if (list == NULL) | |
| 7885 return NULL; | |
| 7886 | |
| 7887 s = reg_getline_submatch(slnum) + scol; | |
| 7888 if (slnum == elnum) | |
| 7889 { | |
| 7890 if (list_append_string(list, s, ecol - scol) == FAIL) | |
| 7891 error = TRUE; | |
| 7892 } | |
| 7893 else | |
| 7894 { | |
| 7895 if (list_append_string(list, s, -1) == FAIL) | |
| 7896 error = TRUE; | |
| 7897 for (i = 1; i < elnum - slnum; i++) | |
| 7898 { | |
| 7899 s = reg_getline_submatch(slnum + i); | |
| 7900 if (list_append_string(list, s, -1) == FAIL) | |
| 7901 error = TRUE; | |
| 7902 } | |
| 7903 s = reg_getline_submatch(elnum); | |
| 7904 if (list_append_string(list, s, ecol) == FAIL) | |
| 7905 error = TRUE; | |
| 7906 } | |
| 7907 } | |
| 7908 else | |
| 7909 { | |
|
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Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7910 s = rsm.sm_match->startp[no]; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7911 if (s == NULL || rsm.sm_match->endp[no] == NULL) |
| 5794 | 7912 return NULL; |
| 7913 list = list_alloc(); | |
| 7914 if (list == NULL) | |
| 7915 return NULL; | |
| 7916 if (list_append_string(list, s, | |
|
10245
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commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7917 (int)(rsm.sm_match->endp[no] - s)) == FAIL) |
| 5794 | 7918 error = TRUE; |
| 7919 } | |
| 7920 | |
| 7921 if (error) | |
| 7922 { | |
|
8863
e1b84109506a
commit https://github.com/vim/vim/commit/107e1eef1df3b786ad3ad49fbdb9e058649303b5
Christian Brabandt <cb@256bit.org>
parents:
8825
diff
changeset
|
7923 list_free(list); |
| 5794 | 7924 return NULL; |
| 7925 } | |
| 7926 return list; | |
| 7927 } | |
| 7 | 7928 #endif |
| 4444 | 7929 |
| 7930 static regengine_T bt_regengine = | |
| 7931 { | |
| 7932 bt_regcomp, | |
|
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Bram Moolenaar <bram@vim.org>
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diff
changeset
|
7933 bt_regfree, |
| 4444 | 7934 bt_regexec_nl, |
| 6328 | 7935 bt_regexec_multi, |
| 7936 (char_u *)"" | |
| 4444 | 7937 }; |
| 7938 | |
| 7939 #include "regexp_nfa.c" | |
| 7940 | |
| 7941 static regengine_T nfa_regengine = | |
| 7942 { | |
| 7943 nfa_regcomp, | |
|
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diff
changeset
|
7944 nfa_regfree, |
| 4444 | 7945 nfa_regexec_nl, |
| 6328 | 7946 nfa_regexec_multi, |
| 7947 (char_u *)"" | |
| 4444 | 7948 }; |
| 7949 | |
| 7950 /* Which regexp engine to use? Needed for vim_regcomp(). | |
| 7951 * Must match with 'regexpengine'. */ | |
| 7952 static int regexp_engine = 0; | |
| 6328 | 7953 |
| 4444 | 7954 #ifdef DEBUG |
| 7955 static char_u regname[][30] = { | |
| 7956 "AUTOMATIC Regexp Engine", | |
|
4579
7a2be4a39423
updated for version 7.3.1037
Bram Moolenaar <bram@vim.org>
parents:
4505
diff
changeset
|
7957 "BACKTRACKING Regexp Engine", |
| 4444 | 7958 "NFA Regexp Engine" |
| 7959 }; | |
| 7960 #endif | |
| 7961 | |
| 7962 /* | |
| 7963 * Compile a regular expression into internal code. | |
|
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diff
changeset
|
7964 * Returns the program in allocated memory. |
|
66803af09906
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diff
changeset
|
7965 * Use vim_regfree() to free the memory. |
|
66803af09906
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parents:
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diff
changeset
|
7966 * Returns NULL for an error. |
| 4444 | 7967 */ |
| 7968 regprog_T * | |
|
7833
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Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
7969 vim_regcomp(char_u *expr_arg, int re_flags) |
| 4444 | 7970 { |
| 7971 regprog_T *prog = NULL; | |
| 7972 char_u *expr = expr_arg; | |
|
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diff
changeset
|
7973 int save_called_emsg; |
| 4444 | 7974 |
| 7975 regexp_engine = p_re; | |
| 7976 | |
| 7977 /* Check for prefix "\%#=", that sets the regexp engine */ | |
| 7978 if (STRNCMP(expr, "\\%#=", 4) == 0) | |
| 7979 { | |
| 7980 int newengine = expr[4] - '0'; | |
| 7981 | |
| 7982 if (newengine == AUTOMATIC_ENGINE | |
| 7983 || newengine == BACKTRACKING_ENGINE | |
| 7984 || newengine == NFA_ENGINE) | |
| 7985 { | |
| 7986 regexp_engine = expr[4] - '0'; | |
| 7987 expr += 5; | |
| 7988 #ifdef DEBUG | |
|
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patch 8.1.0743: giving error messages is not flexible
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15339
diff
changeset
|
7989 smsg("New regexp mode selected (%d): %s", |
| 5897 | 7990 regexp_engine, regname[newengine]); |
| 4444 | 7991 #endif |
| 7992 } | |
| 7993 else | |
| 7994 { | |
|
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patch 8.1.0743: giving error messages is not flexible
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15339
diff
changeset
|
7995 emsg(_("E864: \\%#= can only be followed by 0, 1, or 2. The automatic engine will be used ")); |
| 4444 | 7996 regexp_engine = AUTOMATIC_ENGINE; |
| 7997 } | |
| 7998 } | |
|
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diff
changeset
|
7999 #ifdef DEBUG |
| 4444 | 8000 bt_regengine.expr = expr; |
| 8001 nfa_regengine.expr = expr; | |
|
14354
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diff
changeset
|
8002 #endif |
|
15856
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patch 8.1.0935: old regexp engine may use invalid buffer
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parents:
15854
diff
changeset
|
8003 // reg_iswordc() uses rex.reg_buf |
|
e44b7caaf373
patch 8.1.0935: old regexp engine may use invalid buffer
Bram Moolenaar <Bram@vim.org>
parents:
15854
diff
changeset
|
8004 rex.reg_buf = curbuf; |
| 4444 | 8005 |
| 8006 /* | |
| 8007 * First try the NFA engine, unless backtracking was requested. | |
| 8008 */ | |
|
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diff
changeset
|
8009 save_called_emsg = called_emsg; |
|
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15860
diff
changeset
|
8010 called_emsg = FALSE; |
| 4444 | 8011 if (regexp_engine != BACKTRACKING_ENGINE) |
|
13244
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patch 8.0.1496: clearing a pointer takes two lines
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parents:
12752
diff
changeset
|
8012 prog = nfa_regengine.regcomp(expr, |
| 6533 | 8013 re_flags + (regexp_engine == AUTOMATIC_ENGINE ? RE_AUTO : 0)); |
| 4444 | 8014 else |
| 8015 prog = bt_regengine.regcomp(expr, re_flags); | |
| 8016 | |
| 6328 | 8017 /* Check for error compiling regexp with initial engine. */ |
| 8018 if (prog == NULL) | |
| 4444 | 8019 { |
| 4460 | 8020 #ifdef BT_REGEXP_DEBUG_LOG |
| 4444 | 8021 if (regexp_engine != BACKTRACKING_ENGINE) /* debugging log for NFA */ |
| 8022 { | |
| 8023 FILE *f; | |
| 4460 | 8024 f = fopen(BT_REGEXP_DEBUG_LOG_NAME, "a"); |
| 4444 | 8025 if (f) |
| 8026 { | |
|
4762
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parents:
4760
diff
changeset
|
8027 fprintf(f, "Syntax error in \"%s\"\n", expr); |
| 4444 | 8028 fclose(f); |
| 8029 } | |
| 8030 else | |
|
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patch 8.1.0743: giving error messages is not flexible
Bram Moolenaar <Bram@vim.org>
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15339
diff
changeset
|
8031 semsg("(NFA) Could not open \"%s\" to write !!!", |
|
13244
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Christian Brabandt <cb@256bit.org>
parents:
12752
diff
changeset
|
8032 BT_REGEXP_DEBUG_LOG_NAME); |
| 4444 | 8033 } |
| 8034 #endif | |
| 8035 /* | |
| 6328 | 8036 * If the NFA engine failed, try the backtracking engine. |
| 6533 | 8037 * The NFA engine also fails for patterns that it can't handle well |
| 8038 * but are still valid patterns, thus a retry should work. | |
|
15935
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diff
changeset
|
8039 * But don't try if an error message was given. |
| 6533 | 8040 */ |
|
15935
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diff
changeset
|
8041 if (regexp_engine == AUTOMATIC_ENGINE && !called_emsg) |
| 6328 | 8042 { |
| 6533 | 8043 regexp_engine = BACKTRACKING_ENGINE; |
|
4762
47906f888725
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parents:
4760
diff
changeset
|
8044 prog = bt_regengine.regcomp(expr, re_flags); |
| 6328 | 8045 } |
|
4762
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diff
changeset
|
8046 } |
|
15935
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diff
changeset
|
8047 called_emsg |= save_called_emsg; |
| 4444 | 8048 |
| 6328 | 8049 if (prog != NULL) |
| 8050 { | |
| 8051 /* Store the info needed to call regcomp() again when the engine turns | |
| 8052 * out to be very slow when executing it. */ | |
| 8053 prog->re_engine = regexp_engine; | |
| 8054 prog->re_flags = re_flags; | |
| 8055 } | |
| 8056 | |
| 4444 | 8057 return prog; |
| 8058 } | |
| 8059 | |
| 8060 /* | |
|
4805
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diff
changeset
|
8061 * Free a compiled regexp program, returned by vim_regcomp(). |
|
66803af09906
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parents:
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diff
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|
8062 */ |
|
66803af09906
updated for version 7.3.1149
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parents:
4770
diff
changeset
|
8063 void |
|
7833
c079097365f3
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7807
diff
changeset
|
8064 vim_regfree(regprog_T *prog) |
|
4805
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diff
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|
8065 { |
|
66803af09906
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4770
diff
changeset
|
8066 if (prog != NULL) |
|
66803af09906
updated for version 7.3.1149
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parents:
4770
diff
changeset
|
8067 prog->engine->regfree(prog); |
|
66803af09906
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diff
changeset
|
8068 } |
|
66803af09906
updated for version 7.3.1149
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4770
diff
changeset
|
8069 |
| 6328 | 8070 #ifdef FEAT_EVAL |
| 8071 static void | |
|
7833
c079097365f3
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Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
8072 report_re_switch(char_u *pat) |
| 6328 | 8073 { |
| 8074 if (p_verbose > 0) | |
| 8075 { | |
| 8076 verbose_enter(); | |
|
15543
dd725a8ab112
patch 8.1.0779: argument for message functions is inconsistent
Bram Moolenaar <Bram@vim.org>
parents:
15480
diff
changeset
|
8077 msg_puts(_("Switching to backtracking RE engine for pattern: ")); |
|
dd725a8ab112
patch 8.1.0779: argument for message functions is inconsistent
Bram Moolenaar <Bram@vim.org>
parents:
15480
diff
changeset
|
8078 msg_puts((char *)pat); |
| 6328 | 8079 verbose_leave(); |
| 8080 } | |
| 8081 } | |
| 8082 #endif | |
| 8083 | |
|
15555
d89c5b339c2a
patch 8.1.0785: depending on the configuration some functions are unused
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parents:
15543
diff
changeset
|
8084 #if (defined(FEAT_X11) && (defined(FEAT_TITLE) || defined(FEAT_XCLIPBOARD))) \ |
|
d89c5b339c2a
patch 8.1.0785: depending on the configuration some functions are unused
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15543
diff
changeset
|
8085 || defined(PROTO) |
|
4805
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diff
changeset
|
8086 /* |
|
15306
7fff2d18e191
patch 8.1.0661: clipboard regexp might be used recursively
Bram Moolenaar <Bram@vim.org>
parents:
15211
diff
changeset
|
8087 * Return whether "prog" is currently being executed. |
|
7fff2d18e191
patch 8.1.0661: clipboard regexp might be used recursively
Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
8088 */ |
|
7fff2d18e191
patch 8.1.0661: clipboard regexp might be used recursively
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diff
changeset
|
8089 int |
|
7fff2d18e191
patch 8.1.0661: clipboard regexp might be used recursively
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15211
diff
changeset
|
8090 regprog_in_use(regprog_T *prog) |
|
7fff2d18e191
patch 8.1.0661: clipboard regexp might be used recursively
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diff
changeset
|
8091 { |
|
7fff2d18e191
patch 8.1.0661: clipboard regexp might be used recursively
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diff
changeset
|
8092 return prog->re_in_use; |
|
7fff2d18e191
patch 8.1.0661: clipboard regexp might be used recursively
Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
8093 } |
|
15555
d89c5b339c2a
patch 8.1.0785: depending on the configuration some functions are unused
Bram Moolenaar <Bram@vim.org>
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15543
diff
changeset
|
8094 #endif |
|
15306
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diff
changeset
|
8095 |
|
7fff2d18e191
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diff
changeset
|
8096 /* |
| 4444 | 8097 * Match a regexp against a string. |
| 8098 * "rmp->regprog" is a compiled regexp as returned by vim_regcomp(). | |
| 6375 | 8099 * Note: "rmp->regprog" may be freed and changed. |
| 4444 | 8100 * Uses curbuf for line count and 'iskeyword'. |
| 6328 | 8101 * When "nl" is TRUE consider a "\n" in "line" to be a line break. |
| 4444 | 8102 * |
| 8103 * Return TRUE if there is a match, FALSE if not. | |
| 8104 */ | |
| 6328 | 8105 static int |
|
11529
998d2cf59caa
patch 8.0.0647: syntax highlighting can make cause a freeze
Christian Brabandt <cb@256bit.org>
parents:
11527
diff
changeset
|
8106 vim_regexec_string( |
|
7833
c079097365f3
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7807
diff
changeset
|
8107 regmatch_T *rmp, |
|
c079097365f3
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7807
diff
changeset
|
8108 char_u *line, /* string to match against */ |
|
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
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7807
diff
changeset
|
8109 colnr_T col, /* column to start looking for match */ |
|
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
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7807
diff
changeset
|
8110 int nl) |
| 6328 | 8111 { |
|
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10187
diff
changeset
|
8112 int result; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
8113 regexec_T rex_save; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
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parents:
10187
diff
changeset
|
8114 int rex_in_use_save = rex_in_use; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
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10187
diff
changeset
|
8115 |
|
14354
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diff
changeset
|
8116 // Cannot use the same prog recursively, it contains state. |
|
ffd834f893aa
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changeset
|
8117 if (rmp->regprog->re_in_use) |
|
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diff
changeset
|
8118 { |
|
15470
55ccc2d353bd
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changeset
|
8119 emsg(_(e_recursive)); |
|
14354
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diff
changeset
|
8120 return FALSE; |
|
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diff
changeset
|
8121 } |
|
ffd834f893aa
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diff
changeset
|
8122 rmp->regprog->re_in_use = TRUE; |
|
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
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diff
changeset
|
8123 |
|
10245
d76ccdacb41e
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10187
diff
changeset
|
8124 if (rex_in_use) |
|
14354
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diff
changeset
|
8125 // Being called recursively, save the state. |
|
10245
d76ccdacb41e
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Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
8126 rex_save = rex; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
8127 rex_in_use = TRUE; |
|
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
|
8128 |
|
10245
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commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
8129 rex.reg_startp = NULL; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
8130 rex.reg_endp = NULL; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
8131 rex.reg_startpos = NULL; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
8132 rex.reg_endpos = NULL; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
8133 |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
8134 result = rmp->regprog->engine->regexec_nl(rmp, line, col, nl); |
|
14358
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patch 8.1.0194: possibly use of NULL pointer
Christian Brabandt <cb@256bit.org>
parents:
14354
diff
changeset
|
8135 rmp->regprog->re_in_use = FALSE; |
| 6328 | 8136 |
| 8137 /* NFA engine aborted because it's very slow. */ | |
| 8138 if (rmp->regprog->re_engine == AUTOMATIC_ENGINE | |
| 8139 && result == NFA_TOO_EXPENSIVE) | |
| 8140 { | |
| 8141 int save_p_re = p_re; | |
| 8142 int re_flags = rmp->regprog->re_flags; | |
| 8143 char_u *pat = vim_strsave(((nfa_regprog_T *)rmp->regprog)->pattern); | |
| 8144 | |
| 8145 p_re = BACKTRACKING_ENGINE; | |
| 8146 vim_regfree(rmp->regprog); | |
| 8147 if (pat != NULL) | |
| 8148 { | |
| 8149 #ifdef FEAT_EVAL | |
| 8150 report_re_switch(pat); | |
| 8151 #endif | |
| 8152 rmp->regprog = vim_regcomp(pat, re_flags); | |
| 8153 if (rmp->regprog != NULL) | |
|
14358
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diff
changeset
|
8154 { |
|
72d506d94f3f
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parents:
14354
diff
changeset
|
8155 rmp->regprog->re_in_use = TRUE; |
| 6328 | 8156 result = rmp->regprog->engine->regexec_nl(rmp, line, col, nl); |
|
14358
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parents:
14354
diff
changeset
|
8157 rmp->regprog->re_in_use = FALSE; |
|
72d506d94f3f
patch 8.1.0194: possibly use of NULL pointer
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parents:
14354
diff
changeset
|
8158 } |
| 6328 | 8159 vim_free(pat); |
| 8160 } | |
| 8161 | |
| 8162 p_re = save_p_re; | |
| 8163 } | |
|
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Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
8164 |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
8165 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
|
8166 if (rex_in_use) |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
8167 rex = rex_save; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
8168 |
| 6390 | 8169 return result > 0; |
| 6328 | 8170 } |
| 8171 | |
| 6375 | 8172 /* |
| 8173 * Note: "*prog" may be freed and changed. | |
| 6390 | 8174 * Return TRUE if there is a match, FALSE if not. |
| 6375 | 8175 */ |
| 8176 int | |
|
7833
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parents:
7807
diff
changeset
|
8177 vim_regexec_prog( |
|
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
8178 regprog_T **prog, |
|
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
8179 int ignore_case, |
|
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
8180 char_u *line, |
|
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
8181 colnr_T col) |
| 6375 | 8182 { |
|
11529
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patch 8.0.0647: syntax highlighting can make cause a freeze
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parents:
11527
diff
changeset
|
8183 int r; |
|
998d2cf59caa
patch 8.0.0647: syntax highlighting can make cause a freeze
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parents:
11527
diff
changeset
|
8184 regmatch_T regmatch; |
| 6375 | 8185 |
| 8186 regmatch.regprog = *prog; | |
| 8187 regmatch.rm_ic = ignore_case; | |
|
11529
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parents:
11527
diff
changeset
|
8188 r = vim_regexec_string(®match, line, col, FALSE); |
| 6375 | 8189 *prog = regmatch.regprog; |
| 8190 return r; | |
| 8191 } | |
| 8192 | |
| 8193 /* | |
| 8194 * Note: "rmp->regprog" may be freed and changed. | |
| 6390 | 8195 * Return TRUE if there is a match, FALSE if not. |
| 6375 | 8196 */ |
| 4444 | 8197 int |
|
7833
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Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
8198 vim_regexec(regmatch_T *rmp, char_u *line, colnr_T col) |
| 4444 | 8199 { |
|
11529
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patch 8.0.0647: syntax highlighting can make cause a freeze
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parents:
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diff
changeset
|
8200 return vim_regexec_string(rmp, line, col, FALSE); |
| 4444 | 8201 } |
| 8202 | |
| 8203 #if defined(FEAT_MODIFY_FNAME) || defined(FEAT_EVAL) \ | |
| 8204 || defined(FIND_REPLACE_DIALOG) || defined(PROTO) | |
| 8205 /* | |
| 8206 * Like vim_regexec(), but consider a "\n" in "line" to be a line break. | |
| 6375 | 8207 * Note: "rmp->regprog" may be freed and changed. |
| 6390 | 8208 * Return TRUE if there is a match, FALSE if not. |
| 4444 | 8209 */ |
| 8210 int | |
|
7833
c079097365f3
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parents:
7807
diff
changeset
|
8211 vim_regexec_nl(regmatch_T *rmp, char_u *line, colnr_T col) |
| 4444 | 8212 { |
|
11529
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parents:
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diff
changeset
|
8213 return vim_regexec_string(rmp, line, col, TRUE); |
| 4444 | 8214 } |
| 8215 #endif | |
| 8216 | |
| 8217 /* | |
| 8218 * Match a regexp against multiple lines. | |
|
14161
7cac4646c552
patch 8.1.0098: segfault when pattern with z() is very slow
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parents:
13286
diff
changeset
|
8219 * "rmp->regprog" must be a compiled regexp as returned by vim_regcomp(). |
|
7cac4646c552
patch 8.1.0098: segfault when pattern with z() is very slow
Christian Brabandt <cb@256bit.org>
parents:
13286
diff
changeset
|
8220 * Note: "rmp->regprog" may be freed and changed, even set to NULL. |
| 4444 | 8221 * Uses curbuf for line count and 'iskeyword'. |
| 8222 * | |
| 8223 * Return zero if there is no match. Return number of lines contained in the | |
| 8224 * match otherwise. | |
| 8225 */ | |
| 8226 long | |
|
7833
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Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
8227 vim_regexec_multi( |
|
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
8228 regmmatch_T *rmp, |
|
13244
ac42c4b11dbc
patch 8.0.1496: clearing a pointer takes two lines
Christian Brabandt <cb@256bit.org>
parents:
12752
diff
changeset
|
8229 win_T *win, /* window in which to search or NULL */ |
|
ac42c4b11dbc
patch 8.0.1496: clearing a pointer takes two lines
Christian Brabandt <cb@256bit.org>
parents:
12752
diff
changeset
|
8230 buf_T *buf, /* buffer in which to search */ |
|
ac42c4b11dbc
patch 8.0.1496: clearing a pointer takes two lines
Christian Brabandt <cb@256bit.org>
parents:
12752
diff
changeset
|
8231 linenr_T lnum, /* nr of line to start looking for match */ |
|
ac42c4b11dbc
patch 8.0.1496: clearing a pointer takes two lines
Christian Brabandt <cb@256bit.org>
parents:
12752
diff
changeset
|
8232 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
|
8233 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
|
8234 int *timed_out) /* flag is set when timeout limit reached */ |
| 4444 | 8235 { |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
8236 int result; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
8237 regexec_T rex_save; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
8238 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
|
8239 |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
8240 // Cannot use the same prog recursively, it contains state. |
|
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
8241 if (rmp->regprog->re_in_use) |
|
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
8242 { |
|
15470
55ccc2d353bd
patch 8.1.0743: giving error messages is not flexible
Bram Moolenaar <Bram@vim.org>
parents:
15339
diff
changeset
|
8243 emsg(_(e_recursive)); |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
8244 return FALSE; |
|
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
8245 } |
|
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
8246 rmp->regprog->re_in_use = TRUE; |
|
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
8247 |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
8248 if (rex_in_use) |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
8249 /* Being called recursively, save the state. */ |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
8250 rex_save = rex; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
8251 rex_in_use = TRUE; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
8252 |
|
11521
578df034735d
patch 8.0.0643: when a pattern search is slow Vim becomes unusable
Christian Brabandt <cb@256bit.org>
parents:
11482
diff
changeset
|
8253 result = rmp->regprog->engine->regexec_multi( |
|
578df034735d
patch 8.0.0643: when a pattern search is slow Vim becomes unusable
Christian Brabandt <cb@256bit.org>
parents:
11482
diff
changeset
|
8254 rmp, win, buf, lnum, col, tm, timed_out); |
|
14358
72d506d94f3f
patch 8.1.0194: possibly use of NULL pointer
Christian Brabandt <cb@256bit.org>
parents:
14354
diff
changeset
|
8255 rmp->regprog->re_in_use = FALSE; |
| 6328 | 8256 |
| 8257 /* NFA engine aborted because it's very slow. */ | |
| 8258 if (rmp->regprog->re_engine == AUTOMATIC_ENGINE | |
| 8259 && result == NFA_TOO_EXPENSIVE) | |
| 8260 { | |
| 8261 int save_p_re = p_re; | |
| 8262 int re_flags = rmp->regprog->re_flags; | |
| 8263 char_u *pat = vim_strsave(((nfa_regprog_T *)rmp->regprog)->pattern); | |
| 8264 | |
| 8265 p_re = BACKTRACKING_ENGINE; | |
| 8266 vim_regfree(rmp->regprog); | |
| 8267 if (pat != NULL) | |
| 8268 { | |
| 8269 #ifdef FEAT_EVAL | |
| 8270 report_re_switch(pat); | |
| 8271 #endif | |
|
14169
42a9178374d1
patch 8.1.0102: cannot build without syntax highlighting
Christian Brabandt <cb@256bit.org>
parents:
14161
diff
changeset
|
8272 #ifdef FEAT_SYN_HL |
|
14161
7cac4646c552
patch 8.1.0098: segfault when pattern with z() is very slow
Christian Brabandt <cb@256bit.org>
parents:
13286
diff
changeset
|
8273 // checking for \z misuse was already done when compiling for NFA, |
|
7cac4646c552
patch 8.1.0098: segfault when pattern with z() is very slow
Christian Brabandt <cb@256bit.org>
parents:
13286
diff
changeset
|
8274 // allow all here |
|
7cac4646c552
patch 8.1.0098: segfault when pattern with z() is very slow
Christian Brabandt <cb@256bit.org>
parents:
13286
diff
changeset
|
8275 reg_do_extmatch = REX_ALL; |
|
14169
42a9178374d1
patch 8.1.0102: cannot build without syntax highlighting
Christian Brabandt <cb@256bit.org>
parents:
14161
diff
changeset
|
8276 #endif |
| 6328 | 8277 rmp->regprog = vim_regcomp(pat, re_flags); |
|
14169
42a9178374d1
patch 8.1.0102: cannot build without syntax highlighting
Christian Brabandt <cb@256bit.org>
parents:
14161
diff
changeset
|
8278 #ifdef FEAT_SYN_HL |
|
14161
7cac4646c552
patch 8.1.0098: segfault when pattern with z() is very slow
Christian Brabandt <cb@256bit.org>
parents:
13286
diff
changeset
|
8279 reg_do_extmatch = 0; |
|
14169
42a9178374d1
patch 8.1.0102: cannot build without syntax highlighting
Christian Brabandt <cb@256bit.org>
parents:
14161
diff
changeset
|
8280 #endif |
|
14161
7cac4646c552
patch 8.1.0098: segfault when pattern with z() is very slow
Christian Brabandt <cb@256bit.org>
parents:
13286
diff
changeset
|
8281 |
| 6328 | 8282 if (rmp->regprog != NULL) |
|
14358
72d506d94f3f
patch 8.1.0194: possibly use of NULL pointer
Christian Brabandt <cb@256bit.org>
parents:
14354
diff
changeset
|
8283 { |
|
72d506d94f3f
patch 8.1.0194: possibly use of NULL pointer
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parents:
14354
diff
changeset
|
8284 rmp->regprog->re_in_use = TRUE; |
| 6328 | 8285 result = rmp->regprog->engine->regexec_multi( |
|
11521
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changeset
|
8286 rmp, win, buf, lnum, col, tm, timed_out); |
|
14358
72d506d94f3f
patch 8.1.0194: possibly use of NULL pointer
Christian Brabandt <cb@256bit.org>
parents:
14354
diff
changeset
|
8287 rmp->regprog->re_in_use = FALSE; |
|
72d506d94f3f
patch 8.1.0194: possibly use of NULL pointer
Christian Brabandt <cb@256bit.org>
parents:
14354
diff
changeset
|
8288 } |
| 6328 | 8289 vim_free(pat); |
| 8290 } | |
| 8291 p_re = save_p_re; | |
| 8292 } | |
| 8293 | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
8294 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
|
8295 if (rex_in_use) |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
8296 rex = rex_save; |
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d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
8297 |
| 6390 | 8298 return result <= 0 ? 0 : result; |
| 4444 | 8299 } |