Mercurial > vim
annotate src/regexp.c @ 11747:9dd958aba769 v8.0.0756
patch 8.0.0756: cannot build libvterm with MSVC
commit https://github.com/vim/vim/commit/2aeaf3fc013a3c4828d6e98a80e6a2e2d980f109
Author: Bram Moolenaar <Bram@vim.org>
Date: Sun Jul 23 17:11:15 2017 +0200
patch 8.0.0756: cannot build libvterm with MSVC
Problem: Cannot build libvterm with MSVC.
Solution: Add an MSVC Makefile to libvterm. (Yasuhiro Matsumoto, closes
#1865)
| author | Christian Brabandt <cb@256bit.org> |
|---|---|
| date | Sun, 23 Jul 2017 17:15:03 +0200 |
| parents | 998d2cf59caa |
| children | e769c912fcd9 |
| rev | line source |
|---|---|
|
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commit https://github.com/vim/vim/commit/edf3f97ae2af024708ebb4ac614227327033ca47
Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
1 /* vi:set ts=8 sts=4 sw=4 noet: |
| 7 | 2 * |
| 3 * Handling of regular expressions: vim_regcomp(), vim_regexec(), vim_regsub() | |
| 4 * | |
| 5 * NOTICE: | |
| 6 * | |
| 7 * This is NOT the original regular expression code as written by Henry | |
| 8 * Spencer. This code has been modified specifically for use with the VIM | |
| 9 * editor, and should not be used separately from Vim. If you want a good | |
| 10 * regular expression library, get the original code. The copyright notice | |
| 11 * that follows is from the original. | |
| 12 * | |
| 13 * END NOTICE | |
| 14 * | |
| 15 * Copyright (c) 1986 by University of Toronto. | |
| 16 * Written by Henry Spencer. Not derived from licensed software. | |
| 17 * | |
| 18 * Permission is granted to anyone to use this software for any | |
| 19 * purpose on any computer system, and to redistribute it freely, | |
| 20 * subject to the following restrictions: | |
| 21 * | |
| 22 * 1. The author is not responsible for the consequences of use of | |
| 23 * this software, no matter how awful, even if they arise | |
| 24 * from defects in it. | |
| 25 * | |
| 26 * 2. The origin of this software must not be misrepresented, either | |
| 27 * by explicit claim or by omission. | |
| 28 * | |
| 29 * 3. Altered versions must be plainly marked as such, and must not | |
| 30 * be misrepresented as being the original software. | |
| 31 * | |
| 32 * Beware that some of this code is subtly aware of the way operator | |
| 33 * precedence is structured in regular expressions. Serious changes in | |
| 34 * regular-expression syntax might require a total rethink. | |
| 35 * | |
| 24 | 36 * Changes have been made by Tony Andrews, Olaf 'Rhialto' Seibert, Robert |
| 37 * Webb, Ciaran McCreesh and Bram Moolenaar. | |
| 7 | 38 * Named character class support added by Walter Briscoe (1998 Jul 01) |
| 39 */ | |
| 40 | |
| 4444 | 41 /* Uncomment the first if you do not want to see debugging logs or files |
| 42 * related to regular expressions, even when compiling with -DDEBUG. | |
| 43 * Uncomment the second to get the regexp debugging. */ | |
| 44 /* #undef DEBUG */ | |
| 45 /* #define DEBUG */ | |
| 46 | |
| 7 | 47 #include "vim.h" |
| 48 | |
| 4444 | 49 #ifdef DEBUG |
| 50 /* show/save debugging data when BT engine is used */ | |
| 51 # define BT_REGEXP_DUMP | |
| 52 /* save the debugging data to a file instead of displaying it */ | |
| 53 # define BT_REGEXP_LOG | |
| 4460 | 54 # define BT_REGEXP_DEBUG_LOG |
| 55 # define BT_REGEXP_DEBUG_LOG_NAME "bt_regexp_debug.log" | |
| 4444 | 56 #endif |
| 7 | 57 |
| 58 /* | |
| 59 * The "internal use only" fields in regexp.h are present to pass info from | |
| 60 * compile to execute that permits the execute phase to run lots faster on | |
| 61 * simple cases. They are: | |
| 62 * | |
| 63 * regstart char that must begin a match; NUL if none obvious; Can be a | |
| 64 * multi-byte character. | |
| 65 * reganch is the match anchored (at beginning-of-line only)? | |
| 66 * regmust string (pointer into program) that match must include, or NULL | |
| 67 * regmlen length of regmust string | |
| 68 * regflags RF_ values or'ed together | |
| 69 * | |
| 70 * Regstart and reganch permit very fast decisions on suitable starting points | |
| 71 * for a match, cutting down the work a lot. Regmust permits fast rejection | |
| 72 * of lines that cannot possibly match. The regmust tests are costly enough | |
| 73 * that vim_regcomp() supplies a regmust only if the r.e. contains something | |
| 74 * potentially expensive (at present, the only such thing detected is * or + | |
| 75 * at the start of the r.e., which can involve a lot of backup). Regmlen is | |
| 76 * supplied because the test in vim_regexec() needs it and vim_regcomp() is | |
| 77 * computing it anyway. | |
| 78 */ | |
| 79 | |
| 80 /* | |
| 81 * Structure for regexp "program". This is essentially a linear encoding | |
| 82 * of a nondeterministic finite-state machine (aka syntax charts or | |
| 83 * "railroad normal form" in parsing technology). Each node is an opcode | |
| 84 * plus a "next" pointer, possibly plus an operand. "Next" pointers of | |
| 85 * all nodes except BRANCH and BRACES_COMPLEX implement concatenation; a "next" | |
| 86 * pointer with a BRANCH on both ends of it is connecting two alternatives. | |
| 87 * (Here we have one of the subtle syntax dependencies: an individual BRANCH | |
| 88 * (as opposed to a collection of them) is never concatenated with anything | |
| 89 * because of operator precedence). The "next" pointer of a BRACES_COMPLEX | |
| 167 | 90 * node points to the node after the stuff to be repeated. |
| 91 * The operand of some types of node is a literal string; for others, it is a | |
| 92 * node leading into a sub-FSM. In particular, the operand of a BRANCH node | |
| 93 * is the first node of the branch. | |
| 94 * (NB this is *not* a tree structure: the tail of the branch connects to the | |
| 95 * thing following the set of BRANCHes.) | |
| 7 | 96 * |
| 97 * pattern is coded like: | |
| 98 * | |
| 99 * +-----------------+ | |
| 100 * | V | |
| 101 * <aa>\|<bb> BRANCH <aa> BRANCH <bb> --> END | |
| 102 * | ^ | ^ | |
| 103 * +------+ +----------+ | |
| 104 * | |
| 105 * | |
| 106 * +------------------+ | |
| 107 * V | | |
| 108 * <aa>* BRANCH BRANCH <aa> --> BACK BRANCH --> NOTHING --> END | |
| 109 * | | ^ ^ | |
| 110 * | +---------------+ | | |
| 111 * +---------------------------------------------+ | |
| 112 * | |
| 113 * | |
| 167 | 114 * +----------------------+ |
| 115 * V | | |
| 233 | 116 * <aa>\+ BRANCH <aa> --> BRANCH --> BACK BRANCH --> NOTHING --> END |
| 856 | 117 * | | ^ ^ |
| 118 * | +-----------+ | | |
| 179 | 119 * +--------------------------------------------------+ |
| 167 | 120 * |
| 121 * | |
| 7 | 122 * +-------------------------+ |
| 123 * V | | |
| 124 * <aa>\{} BRANCH BRACE_LIMITS --> BRACE_COMPLEX <aa> --> BACK END | |
| 125 * | | ^ | |
| 126 * | +----------------+ | |
| 127 * +-----------------------------------------------+ | |
| 128 * | |
| 129 * | |
| 130 * <aa>\@!<bb> BRANCH NOMATCH <aa> --> END <bb> --> END | |
| 131 * | | ^ ^ | |
| 132 * | +----------------+ | | |
| 133 * +--------------------------------+ | |
| 134 * | |
| 135 * +---------+ | |
| 136 * | V | |
| 137 * \z[abc] BRANCH BRANCH a BRANCH b BRANCH c BRANCH NOTHING --> END | |
| 138 * | | | | ^ ^ | |
| 139 * | | | +-----+ | | |
| 140 * | | +----------------+ | | |
| 141 * | +---------------------------+ | | |
| 142 * +------------------------------------------------------+ | |
| 143 * | |
| 1209 | 144 * They all start with a BRANCH for "\|" alternatives, even when there is only |
| 7 | 145 * one alternative. |
| 146 */ | |
| 147 | |
| 148 /* | |
| 149 * The opcodes are: | |
| 150 */ | |
| 151 | |
| 152 /* definition number opnd? meaning */ | |
| 153 #define END 0 /* End of program or NOMATCH operand. */ | |
| 154 #define BOL 1 /* Match "" at beginning of line. */ | |
| 155 #define EOL 2 /* Match "" at end of line. */ | |
| 156 #define BRANCH 3 /* node Match this alternative, or the | |
| 157 * next... */ | |
| 158 #define BACK 4 /* Match "", "next" ptr points backward. */ | |
| 159 #define EXACTLY 5 /* str Match this string. */ | |
| 160 #define NOTHING 6 /* Match empty string. */ | |
| 161 #define STAR 7 /* node Match this (simple) thing 0 or more | |
| 162 * times. */ | |
| 163 #define PLUS 8 /* node Match this (simple) thing 1 or more | |
| 164 * times. */ | |
| 165 #define MATCH 9 /* node match the operand zero-width */ | |
| 166 #define NOMATCH 10 /* node check for no match with operand */ | |
| 167 #define BEHIND 11 /* node look behind for a match with operand */ | |
| 168 #define NOBEHIND 12 /* node look behind for no match with operand */ | |
| 169 #define SUBPAT 13 /* node match the operand here */ | |
| 170 #define BRACE_SIMPLE 14 /* node Match this (simple) thing between m and | |
| 171 * n times (\{m,n\}). */ | |
| 172 #define BOW 15 /* Match "" after [^a-zA-Z0-9_] */ | |
| 173 #define EOW 16 /* Match "" at [^a-zA-Z0-9_] */ | |
| 174 #define BRACE_LIMITS 17 /* nr nr define the min & max for BRACE_SIMPLE | |
| 175 * and BRACE_COMPLEX. */ | |
| 176 #define NEWL 18 /* Match line-break */ | |
| 177 #define BHPOS 19 /* End position for BEHIND or NOBEHIND */ | |
| 178 | |
| 179 | |
| 180 /* character classes: 20-48 normal, 50-78 include a line-break */ | |
| 181 #define ADD_NL 30 | |
| 182 #define FIRST_NL ANY + ADD_NL | |
| 183 #define ANY 20 /* Match any one character. */ | |
| 184 #define ANYOF 21 /* str Match any character in this string. */ | |
| 185 #define ANYBUT 22 /* str Match any character not in this | |
| 186 * string. */ | |
| 187 #define IDENT 23 /* Match identifier char */ | |
| 188 #define SIDENT 24 /* Match identifier char but no digit */ | |
| 189 #define KWORD 25 /* Match keyword char */ | |
| 190 #define SKWORD 26 /* Match word char but no digit */ | |
| 191 #define FNAME 27 /* Match file name char */ | |
| 192 #define SFNAME 28 /* Match file name char but no digit */ | |
| 193 #define PRINT 29 /* Match printable char */ | |
| 194 #define SPRINT 30 /* Match printable char but no digit */ | |
| 195 #define WHITE 31 /* Match whitespace char */ | |
| 196 #define NWHITE 32 /* Match non-whitespace char */ | |
| 197 #define DIGIT 33 /* Match digit char */ | |
| 198 #define NDIGIT 34 /* Match non-digit char */ | |
| 199 #define HEX 35 /* Match hex char */ | |
| 200 #define NHEX 36 /* Match non-hex char */ | |
| 201 #define OCTAL 37 /* Match octal char */ | |
| 202 #define NOCTAL 38 /* Match non-octal char */ | |
| 203 #define WORD 39 /* Match word char */ | |
| 204 #define NWORD 40 /* Match non-word char */ | |
| 205 #define HEAD 41 /* Match head char */ | |
| 206 #define NHEAD 42 /* Match non-head char */ | |
| 207 #define ALPHA 43 /* Match alpha char */ | |
| 208 #define NALPHA 44 /* Match non-alpha char */ | |
| 209 #define LOWER 45 /* Match lowercase char */ | |
| 210 #define NLOWER 46 /* Match non-lowercase char */ | |
| 211 #define UPPER 47 /* Match uppercase char */ | |
| 212 #define NUPPER 48 /* Match non-uppercase char */ | |
| 213 #define LAST_NL NUPPER + ADD_NL | |
| 214 #define WITH_NL(op) ((op) >= FIRST_NL && (op) <= LAST_NL) | |
| 215 | |
| 216 #define MOPEN 80 /* -89 Mark this point in input as start of | |
| 217 * \( subexpr. MOPEN + 0 marks start of | |
| 218 * match. */ | |
| 219 #define MCLOSE 90 /* -99 Analogous to MOPEN. MCLOSE + 0 marks | |
| 220 * end of match. */ | |
| 221 #define BACKREF 100 /* -109 node Match same string again \1-\9 */ | |
| 222 | |
| 223 #ifdef FEAT_SYN_HL | |
| 224 # define ZOPEN 110 /* -119 Mark this point in input as start of | |
| 225 * \z( subexpr. */ | |
| 226 # define ZCLOSE 120 /* -129 Analogous to ZOPEN. */ | |
| 227 # define ZREF 130 /* -139 node Match external submatch \z1-\z9 */ | |
| 228 #endif | |
| 229 | |
| 230 #define BRACE_COMPLEX 140 /* -149 node Match nodes between m & n times */ | |
| 231 | |
| 232 #define NOPEN 150 /* Mark this point in input as start of | |
| 233 \%( subexpr. */ | |
| 234 #define NCLOSE 151 /* Analogous to NOPEN. */ | |
| 235 | |
| 236 #define MULTIBYTECODE 200 /* mbc Match one multi-byte character */ | |
| 237 #define RE_BOF 201 /* Match "" at beginning of file. */ | |
| 238 #define RE_EOF 202 /* Match "" at end of file. */ | |
| 239 #define CURSOR 203 /* Match location of cursor. */ | |
| 240 | |
| 241 #define RE_LNUM 204 /* nr cmp Match line number */ | |
| 242 #define RE_COL 205 /* nr cmp Match column number */ | |
| 243 #define RE_VCOL 206 /* nr cmp Match virtual column number */ | |
| 244 | |
| 639 | 245 #define RE_MARK 207 /* mark cmp Match mark position */ |
| 246 #define RE_VISUAL 208 /* Match Visual area */ | |
| 5901 | 247 #define RE_COMPOSING 209 /* any composing characters */ |
| 639 | 248 |
| 7 | 249 /* |
| 250 * Magic characters have a special meaning, they don't match literally. | |
| 251 * Magic characters are negative. This separates them from literal characters | |
| 252 * (possibly multi-byte). Only ASCII characters can be Magic. | |
| 253 */ | |
| 254 #define Magic(x) ((int)(x) - 256) | |
| 255 #define un_Magic(x) ((x) + 256) | |
| 256 #define is_Magic(x) ((x) < 0) | |
| 257 | |
| 258 static int | |
|
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259 no_Magic(int x) |
| 7 | 260 { |
| 261 if (is_Magic(x)) | |
| 262 return un_Magic(x); | |
| 263 return x; | |
| 264 } | |
| 265 | |
| 266 static int | |
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267 toggle_Magic(int x) |
| 7 | 268 { |
| 269 if (is_Magic(x)) | |
| 270 return un_Magic(x); | |
| 271 return Magic(x); | |
| 272 } | |
| 273 | |
| 274 /* | |
| 275 * The first byte of the regexp internal "program" is actually this magic | |
| 276 * number; the start node begins in the second byte. It's used to catch the | |
| 277 * most severe mutilation of the program by the caller. | |
| 278 */ | |
| 279 | |
| 280 #define REGMAGIC 0234 | |
| 281 | |
| 282 /* | |
| 283 * Opcode notes: | |
| 284 * | |
| 285 * BRANCH The set of branches constituting a single choice are hooked | |
| 286 * together with their "next" pointers, since precedence prevents | |
| 287 * anything being concatenated to any individual branch. The | |
| 288 * "next" pointer of the last BRANCH in a choice points to the | |
| 289 * thing following the whole choice. This is also where the | |
| 290 * final "next" pointer of each individual branch points; each | |
| 291 * branch starts with the operand node of a BRANCH node. | |
| 292 * | |
| 293 * BACK Normal "next" pointers all implicitly point forward; BACK | |
| 294 * exists to make loop structures possible. | |
| 295 * | |
| 296 * STAR,PLUS '=', and complex '*' and '+', are implemented as circular | |
| 297 * BRANCH structures using BACK. Simple cases (one character | |
| 298 * per match) are implemented with STAR and PLUS for speed | |
| 299 * and to minimize recursive plunges. | |
| 300 * | |
| 301 * BRACE_LIMITS This is always followed by a BRACE_SIMPLE or BRACE_COMPLEX | |
| 302 * node, and defines the min and max limits to be used for that | |
| 303 * node. | |
| 304 * | |
| 305 * MOPEN,MCLOSE ...are numbered at compile time. | |
| 306 * ZOPEN,ZCLOSE ...ditto | |
| 307 */ | |
| 308 | |
| 309 /* | |
| 310 * A node is one char of opcode followed by two chars of "next" pointer. | |
| 311 * "Next" pointers are stored as two 8-bit bytes, high order first. The | |
| 312 * value is a positive offset from the opcode of the node containing it. | |
| 313 * An operand, if any, simply follows the node. (Note that much of the | |
| 314 * code generation knows about this implicit relationship.) | |
| 315 * | |
| 316 * Using two bytes for the "next" pointer is vast overkill for most things, | |
| 317 * but allows patterns to get big without disasters. | |
| 318 */ | |
| 319 #define OP(p) ((int)*(p)) | |
| 320 #define NEXT(p) (((*((p) + 1) & 0377) << 8) + (*((p) + 2) & 0377)) | |
| 321 #define OPERAND(p) ((p) + 3) | |
| 322 /* Obtain an operand that was stored as four bytes, MSB first. */ | |
| 323 #define OPERAND_MIN(p) (((long)(p)[3] << 24) + ((long)(p)[4] << 16) \ | |
| 324 + ((long)(p)[5] << 8) + (long)(p)[6]) | |
| 325 /* Obtain a second operand stored as four bytes. */ | |
| 326 #define OPERAND_MAX(p) OPERAND_MIN((p) + 4) | |
| 327 /* Obtain a second single-byte operand stored after a four bytes operand. */ | |
| 328 #define OPERAND_CMP(p) (p)[7] | |
| 329 | |
| 330 /* | |
| 331 * Utility definitions. | |
| 332 */ | |
| 333 #define UCHARAT(p) ((int)*(char_u *)(p)) | |
| 334 | |
| 335 /* Used for an error (down from) vim_regcomp(): give the error message, set | |
| 336 * rc_did_emsg and return NULL */ | |
| 653 | 337 #define EMSG_RET_NULL(m) return (EMSG(m), rc_did_emsg = TRUE, (void *)NULL) |
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338 #define IEMSG_RET_NULL(m) return (IEMSG(m), rc_did_emsg = TRUE, (void *)NULL) |
| 308 | 339 #define EMSG_RET_FAIL(m) return (EMSG(m), rc_did_emsg = TRUE, FAIL) |
| 4444 | 340 #define EMSG2_RET_NULL(m, c) return (EMSG2((m), (c) ? "" : "\\"), rc_did_emsg = TRUE, (void *)NULL) |
| 341 #define EMSG2_RET_FAIL(m, c) return (EMSG2((m), (c) ? "" : "\\"), rc_did_emsg = TRUE, FAIL) | |
| 342 #define EMSG_ONE_RET_NULL EMSG2_RET_NULL(_("E369: invalid item in %s%%[]"), reg_magic == MAGIC_ALL) | |
| 7 | 343 |
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344 |
| 7 | 345 #define MAX_LIMIT (32767L << 16L) |
| 346 | |
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347 static int re_multi_type(int); |
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348 static int cstrncmp(char_u *s1, char_u *s2, int *n); |
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349 static char_u *cstrchr(char_u *, int); |
| 7 | 350 |
| 4444 | 351 #ifdef BT_REGEXP_DUMP |
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352 static void regdump(char_u *, bt_regprog_T *); |
| 4444 | 353 #endif |
| 7 | 354 #ifdef DEBUG |
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355 static char_u *regprop(char_u *); |
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356 #endif |
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357 |
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358 static int re_mult_next(char *what); |
| 6203 | 359 |
| 4444 | 360 static char_u e_missingbracket[] = N_("E769: Missing ] after %s["); |
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361 static char_u e_reverse_range[] = N_("E944: Reverse range in character class"); |
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362 #ifdef FEAT_MBYTE |
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363 static char_u e_large_class[] = N_("E945: Range too large in character class"); |
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364 #endif |
| 4444 | 365 static char_u e_unmatchedpp[] = N_("E53: Unmatched %s%%("); |
| 366 static char_u e_unmatchedp[] = N_("E54: Unmatched %s("); | |
| 367 static char_u e_unmatchedpar[] = N_("E55: Unmatched %s)"); | |
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368 #ifdef FEAT_SYN_HL |
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369 static char_u e_z_not_allowed[] = N_("E66: \\z( not allowed here"); |
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370 static char_u e_z1_not_allowed[] = N_("E67: \\z1 et al. not allowed here"); |
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371 #endif |
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372 static char_u e_missing_sb[] = N_("E69: Missing ] after %s%%["); |
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373 static char_u e_empty_sb[] = N_("E70: Empty %s%%[]"); |
| 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 |
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429 static int backslash_trans(int c); |
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430 static int get_char_class(char_u **pp); |
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431 static int get_equi_class(char_u **pp); |
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432 static void reg_equi_class(int c); |
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433 static int get_coll_element(char_u **pp); |
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434 static char_u *skip_anyof(char_u *p); |
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435 static void init_class_tab(void); |
| 7 | 436 |
| 437 /* | |
| 438 * Translate '\x' to its control character, except "\n", which is Magic. | |
| 439 */ | |
| 440 static int | |
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441 backslash_trans(int c) |
| 7 | 442 { |
| 443 switch (c) | |
| 444 { | |
| 445 case 'r': return CAR; | |
| 446 case 't': return TAB; | |
| 447 case 'e': return ESC; | |
| 448 case 'b': return BS; | |
| 449 } | |
| 450 return c; | |
| 451 } | |
| 452 | |
| 453 /* | |
| 167 | 454 * Check for a character class name "[:name:]". "pp" points to the '['. |
| 7 | 455 * Returns one of the CLASS_ items. CLASS_NONE means that no item was |
| 456 * recognized. Otherwise "pp" is advanced to after the item. | |
| 457 */ | |
| 458 static int | |
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459 get_char_class(char_u **pp) |
| 7 | 460 { |
| 461 static const char *(class_names[]) = | |
| 462 { | |
| 463 "alnum:]", | |
| 464 #define CLASS_ALNUM 0 | |
| 465 "alpha:]", | |
| 466 #define CLASS_ALPHA 1 | |
| 467 "blank:]", | |
| 468 #define CLASS_BLANK 2 | |
| 469 "cntrl:]", | |
| 470 #define CLASS_CNTRL 3 | |
| 471 "digit:]", | |
| 472 #define CLASS_DIGIT 4 | |
| 473 "graph:]", | |
| 474 #define CLASS_GRAPH 5 | |
| 475 "lower:]", | |
| 476 #define CLASS_LOWER 6 | |
| 477 "print:]", | |
| 478 #define CLASS_PRINT 7 | |
| 479 "punct:]", | |
| 480 #define CLASS_PUNCT 8 | |
| 481 "space:]", | |
| 482 #define CLASS_SPACE 9 | |
| 483 "upper:]", | |
| 484 #define CLASS_UPPER 10 | |
| 485 "xdigit:]", | |
| 486 #define CLASS_XDIGIT 11 | |
| 487 "tab:]", | |
| 488 #define CLASS_TAB 12 | |
| 489 "return:]", | |
| 490 #define CLASS_RETURN 13 | |
| 491 "backspace:]", | |
| 492 #define CLASS_BACKSPACE 14 | |
| 493 "escape:]", | |
| 494 #define CLASS_ESCAPE 15 | |
| 495 }; | |
| 496 #define CLASS_NONE 99 | |
| 497 int i; | |
| 498 | |
| 499 if ((*pp)[1] == ':') | |
| 500 { | |
| 1877 | 501 for (i = 0; i < (int)(sizeof(class_names) / sizeof(*class_names)); ++i) |
| 7 | 502 if (STRNCMP(*pp + 2, class_names[i], STRLEN(class_names[i])) == 0) |
| 503 { | |
| 504 *pp += STRLEN(class_names[i]) + 2; | |
| 505 return i; | |
| 506 } | |
| 507 } | |
| 508 return CLASS_NONE; | |
| 509 } | |
| 510 | |
| 511 /* | |
| 512 * Specific version of character class functions. | |
| 513 * Using a table to keep this fast. | |
| 514 */ | |
| 515 static short class_tab[256]; | |
| 516 | |
| 517 #define RI_DIGIT 0x01 | |
| 518 #define RI_HEX 0x02 | |
| 519 #define RI_OCTAL 0x04 | |
| 520 #define RI_WORD 0x08 | |
| 521 #define RI_HEAD 0x10 | |
| 522 #define RI_ALPHA 0x20 | |
| 523 #define RI_LOWER 0x40 | |
| 524 #define RI_UPPER 0x80 | |
| 525 #define RI_WHITE 0x100 | |
| 526 | |
| 527 static void | |
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528 init_class_tab(void) |
| 7 | 529 { |
| 530 int i; | |
| 531 static int done = FALSE; | |
| 532 | |
| 533 if (done) | |
| 534 return; | |
| 535 | |
| 536 for (i = 0; i < 256; ++i) | |
| 537 { | |
| 538 if (i >= '0' && i <= '7') | |
| 539 class_tab[i] = RI_DIGIT + RI_HEX + RI_OCTAL + RI_WORD; | |
| 540 else if (i >= '8' && i <= '9') | |
| 541 class_tab[i] = RI_DIGIT + RI_HEX + RI_WORD; | |
| 542 else if (i >= 'a' && i <= 'f') | |
| 543 class_tab[i] = RI_HEX + RI_WORD + RI_HEAD + RI_ALPHA + RI_LOWER; | |
| 544 #ifdef EBCDIC | |
| 545 else if ((i >= 'g' && i <= 'i') || (i >= 'j' && i <= 'r') | |
| 546 || (i >= 's' && i <= 'z')) | |
| 547 #else | |
| 548 else if (i >= 'g' && i <= 'z') | |
| 549 #endif | |
| 550 class_tab[i] = RI_WORD + RI_HEAD + RI_ALPHA + RI_LOWER; | |
| 551 else if (i >= 'A' && i <= 'F') | |
| 552 class_tab[i] = RI_HEX + RI_WORD + RI_HEAD + RI_ALPHA + RI_UPPER; | |
| 553 #ifdef EBCDIC | |
| 554 else if ((i >= 'G' && i <= 'I') || ( i >= 'J' && i <= 'R') | |
| 555 || (i >= 'S' && i <= 'Z')) | |
| 556 #else | |
| 557 else if (i >= 'G' && i <= 'Z') | |
| 558 #endif | |
| 559 class_tab[i] = RI_WORD + RI_HEAD + RI_ALPHA + RI_UPPER; | |
| 560 else if (i == '_') | |
| 561 class_tab[i] = RI_WORD + RI_HEAD; | |
| 562 else | |
| 563 class_tab[i] = 0; | |
| 564 } | |
| 565 class_tab[' '] |= RI_WHITE; | |
| 566 class_tab['\t'] |= RI_WHITE; | |
| 567 done = TRUE; | |
| 568 } | |
| 569 | |
| 570 #ifdef FEAT_MBYTE | |
| 571 # define ri_digit(c) (c < 0x100 && (class_tab[c] & RI_DIGIT)) | |
| 572 # define ri_hex(c) (c < 0x100 && (class_tab[c] & RI_HEX)) | |
| 573 # define ri_octal(c) (c < 0x100 && (class_tab[c] & RI_OCTAL)) | |
| 574 # define ri_word(c) (c < 0x100 && (class_tab[c] & RI_WORD)) | |
| 575 # define ri_head(c) (c < 0x100 && (class_tab[c] & RI_HEAD)) | |
| 576 # define ri_alpha(c) (c < 0x100 && (class_tab[c] & RI_ALPHA)) | |
| 577 # define ri_lower(c) (c < 0x100 && (class_tab[c] & RI_LOWER)) | |
| 578 # define ri_upper(c) (c < 0x100 && (class_tab[c] & RI_UPPER)) | |
| 579 # define ri_white(c) (c < 0x100 && (class_tab[c] & RI_WHITE)) | |
| 580 #else | |
| 581 # define ri_digit(c) (class_tab[c] & RI_DIGIT) | |
| 582 # define ri_hex(c) (class_tab[c] & RI_HEX) | |
| 583 # define ri_octal(c) (class_tab[c] & RI_OCTAL) | |
| 584 # define ri_word(c) (class_tab[c] & RI_WORD) | |
| 585 # define ri_head(c) (class_tab[c] & RI_HEAD) | |
| 586 # define ri_alpha(c) (class_tab[c] & RI_ALPHA) | |
| 587 # define ri_lower(c) (class_tab[c] & RI_LOWER) | |
| 588 # define ri_upper(c) (class_tab[c] & RI_UPPER) | |
| 589 # define ri_white(c) (class_tab[c] & RI_WHITE) | |
| 590 #endif | |
| 591 | |
| 592 /* flags for regflags */ | |
| 593 #define RF_ICASE 1 /* ignore case */ | |
| 594 #define RF_NOICASE 2 /* don't ignore case */ | |
| 595 #define RF_HASNL 4 /* can match a NL */ | |
| 596 #define RF_ICOMBINE 8 /* ignore combining characters */ | |
| 597 #define RF_LOOKBH 16 /* uses "\@<=" or "\@<!" */ | |
| 598 | |
| 599 /* | |
| 600 * Global work variables for vim_regcomp(). | |
| 601 */ | |
| 602 | |
| 603 static char_u *regparse; /* Input-scan pointer. */ | |
| 604 static int prevchr_len; /* byte length of previous char */ | |
| 605 static int num_complex_braces; /* Complex \{...} count */ | |
| 606 static int regnpar; /* () count. */ | |
| 607 #ifdef FEAT_SYN_HL | |
| 608 static int regnzpar; /* \z() count. */ | |
| 609 static int re_has_z; /* \z item detected */ | |
| 610 #endif | |
| 611 static char_u *regcode; /* Code-emit pointer, or JUST_CALC_SIZE */ | |
| 612 static long regsize; /* Code size. */ | |
| 2010 | 613 static int reg_toolong; /* TRUE when offset out of range */ |
| 7 | 614 static char_u had_endbrace[NSUBEXP]; /* flags, TRUE if end of () found */ |
| 615 static unsigned regflags; /* RF_ flags for prog */ | |
| 616 static long brace_min[10]; /* Minimums for complex brace repeats */ | |
| 617 static long brace_max[10]; /* Maximums for complex brace repeats */ | |
| 618 static int brace_count[10]; /* Current counts for complex brace repeats */ | |
| 619 #if defined(FEAT_SYN_HL) || defined(PROTO) | |
| 620 static int had_eol; /* TRUE when EOL found by vim_regcomp() */ | |
| 621 #endif | |
| 622 static int one_exactly = FALSE; /* only do one char for EXACTLY */ | |
| 623 | |
| 624 static int reg_magic; /* magicness of the pattern: */ | |
| 625 #define MAGIC_NONE 1 /* "\V" very unmagic */ | |
| 626 #define MAGIC_OFF 2 /* "\M" or 'magic' off */ | |
| 627 #define MAGIC_ON 3 /* "\m" or 'magic' */ | |
| 628 #define MAGIC_ALL 4 /* "\v" very magic */ | |
| 629 | |
| 630 static int reg_string; /* matching with a string instead of a buffer | |
| 631 line */ | |
| 481 | 632 static int reg_strict; /* "[abc" is illegal */ |
| 7 | 633 |
| 634 /* | |
| 635 * META contains all characters that may be magic, except '^' and '$'. | |
| 636 */ | |
| 637 | |
| 638 #ifdef EBCDIC | |
| 639 static char_u META[] = "%&()*+.123456789<=>?@ACDFHIKLMOPSUVWX[_acdfhiklmnopsuvwxz{|~"; | |
| 640 #else | |
| 641 /* META[] is used often enough to justify turning it into a table. */ | |
| 642 static char_u META_flags[] = { | |
| 643 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
| 644 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
| 645 /* % & ( ) * + . */ | |
| 646 0, 0, 0, 0, 0, 1, 1, 0, 1, 1, 1, 1, 0, 0, 1, 0, | |
| 647 /* 1 2 3 4 5 6 7 8 9 < = > ? */ | |
| 648 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 1, 1, | |
| 649 /* @ A C D F H I K L M O */ | |
| 650 1, 1, 0, 1, 1, 0, 1, 0, 1, 1, 0, 1, 1, 1, 0, 1, | |
| 651 /* P S U V W X Z [ _ */ | |
| 652 1, 0, 0, 1, 0, 1, 1, 1, 1, 0, 1, 1, 0, 0, 0, 1, | |
| 653 /* a c d f h i k l m n o */ | |
| 654 0, 1, 0, 1, 1, 0, 1, 0, 1, 1, 0, 1, 1, 1, 1, 1, | |
| 655 /* p s u v w x z { | ~ */ | |
| 656 1, 0, 0, 1, 0, 1, 1, 1, 1, 0, 1, 1, 1, 0, 1 | |
| 657 }; | |
| 658 #endif | |
| 659 | |
| 4444 | 660 static int curchr; /* currently parsed character */ |
| 661 /* Previous character. Note: prevchr is sometimes -1 when we are not at the | |
| 662 * start, eg in /[ ^I]^ the pattern was never found even if it existed, | |
| 663 * because ^ was taken to be magic -- webb */ | |
| 664 static int prevchr; | |
| 665 static int prevprevchr; /* previous-previous character */ | |
| 666 static int nextchr; /* used for ungetchr() */ | |
| 7 | 667 |
| 668 /* arguments for reg() */ | |
| 669 #define REG_NOPAREN 0 /* toplevel reg() */ | |
| 670 #define REG_PAREN 1 /* \(\) */ | |
| 671 #define REG_ZPAREN 2 /* \z(\) */ | |
| 672 #define REG_NPAREN 3 /* \%(\) */ | |
| 673 | |
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674 typedef struct |
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675 { |
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676 char_u *regparse; |
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677 int prevchr_len; |
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678 int curchr; |
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679 int prevchr; |
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680 int prevprevchr; |
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681 int nextchr; |
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682 int at_start; |
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683 int prev_at_start; |
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684 int regnpar; |
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685 } parse_state_T; |
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686 |
| 7 | 687 /* |
| 688 * Forward declarations for vim_regcomp()'s friends. | |
| 689 */ | |
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690 static void initchr(char_u *); |
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691 static void save_parse_state(parse_state_T *ps); |
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692 static void restore_parse_state(parse_state_T *ps); |
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693 static int getchr(void); |
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694 static void skipchr_keepstart(void); |
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695 static int peekchr(void); |
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696 static void skipchr(void); |
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697 static void ungetchr(void); |
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698 static int gethexchrs(int maxinputlen); |
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699 static int getoctchrs(void); |
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700 static int getdecchrs(void); |
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701 static int coll_get_char(void); |
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702 static void regcomp_start(char_u *expr, int flags); |
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703 static char_u *reg(int, int *); |
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704 static char_u *regbranch(int *flagp); |
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705 static char_u *regconcat(int *flagp); |
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706 static char_u *regpiece(int *); |
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707 static char_u *regatom(int *); |
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708 static char_u *regnode(int); |
| 714 | 709 #ifdef FEAT_MBYTE |
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710 static int use_multibytecode(int c); |
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711 #endif |
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712 static int prog_magic_wrong(void); |
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713 static char_u *regnext(char_u *); |
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714 static void regc(int b); |
| 7 | 715 #ifdef FEAT_MBYTE |
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716 static void regmbc(int c); |
| 2974 | 717 # define REGMBC(x) regmbc(x); |
| 718 # define CASEMBC(x) case x: | |
| 167 | 719 #else |
| 720 # define regmbc(c) regc(c) | |
| 2974 | 721 # define REGMBC(x) |
| 722 # define CASEMBC(x) | |
| 7 | 723 #endif |
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724 static void reginsert(int, char_u *); |
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725 static void reginsert_nr(int op, long val, char_u *opnd); |
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726 static void reginsert_limits(int, long, long, char_u *); |
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727 static char_u *re_put_long(char_u *pr, long_u val); |
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728 static int read_limits(long *, long *); |
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729 static void regtail(char_u *, char_u *); |
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730 static void regoptail(char_u *, char_u *); |
| 7 | 731 |
| 4444 | 732 static regengine_T bt_regengine; |
| 733 static regengine_T nfa_regengine; | |
| 734 | |
| 7 | 735 /* |
| 736 * Return TRUE if compiled regular expression "prog" can match a line break. | |
| 737 */ | |
| 738 int | |
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739 re_multiline(regprog_T *prog) |
| 7 | 740 { |
| 741 return (prog->regflags & RF_HASNL); | |
| 742 } | |
| 743 | |
| 744 /* | |
| 745 * Return TRUE if compiled regular expression "prog" looks before the start | |
| 746 * position (pattern contains "\@<=" or "\@<!"). | |
| 747 */ | |
| 748 int | |
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749 re_lookbehind(regprog_T *prog) |
| 7 | 750 { |
| 751 return (prog->regflags & RF_LOOKBH); | |
| 752 } | |
| 753 | |
| 754 /* | |
| 167 | 755 * Check for an equivalence class name "[=a=]". "pp" points to the '['. |
| 756 * Returns a character representing the class. Zero means that no item was | |
| 757 * recognized. Otherwise "pp" is advanced to after the item. | |
| 758 */ | |
| 759 static int | |
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760 get_equi_class(char_u **pp) |
| 167 | 761 { |
| 762 int c; | |
| 763 int l = 1; | |
| 764 char_u *p = *pp; | |
| 765 | |
| 766 if (p[1] == '=') | |
| 767 { | |
| 768 #ifdef FEAT_MBYTE | |
| 769 if (has_mbyte) | |
| 474 | 770 l = (*mb_ptr2len)(p + 2); |
| 167 | 771 #endif |
| 772 if (p[l + 2] == '=' && p[l + 3] == ']') | |
| 773 { | |
| 774 #ifdef FEAT_MBYTE | |
| 775 if (has_mbyte) | |
| 776 c = mb_ptr2char(p + 2); | |
| 777 else | |
| 778 #endif | |
| 779 c = p[2]; | |
| 780 *pp += l + 4; | |
| 781 return c; | |
| 782 } | |
| 783 } | |
| 784 return 0; | |
| 785 } | |
| 786 | |
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787 #ifdef EBCDIC |
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788 /* |
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789 * Table for equivalence class "c". (IBM-1047) |
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790 */ |
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791 char *EQUIVAL_CLASS_C[16] = { |
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792 "A\x62\x63\x64\x65\x66\x67", |
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793 "C\x68", |
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794 "E\x71\x72\x73\x74", |
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795 "I\x75\x76\x77\x78", |
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796 "N\x69", |
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797 "O\xEB\xEC\xED\xEE\xEF\x80", |
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798 "U\xFB\xFC\xFD\xFE", |
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799 "Y\xBA", |
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800 "a\x42\x43\x44\x45\x46\x47", |
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801 "c\x48", |
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802 "e\x51\x52\x53\x54", |
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803 "i\x55\x56\x57\x58", |
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804 "n\x49", |
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805 "o\xCB\xCC\xCD\xCE\xCF\x70", |
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806 "u\xDB\xDC\xDD\xDE", |
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807 "y\x8D\xDF", |
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808 }; |
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809 #endif |
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810 |
| 167 | 811 /* |
| 812 * Produce the bytes for equivalence class "c". | |
| 813 * Currently only handles latin1, latin9 and utf-8. | |
| 4444 | 814 * NOTE: When changing this function, also change nfa_emit_equi_class() |
| 167 | 815 */ |
| 816 static void | |
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817 reg_equi_class(int c) |
| 167 | 818 { |
| 819 #ifdef FEAT_MBYTE | |
| 820 if (enc_utf8 || STRCMP(p_enc, "latin1") == 0 | |
| 492 | 821 || STRCMP(p_enc, "iso-8859-15") == 0) |
| 167 | 822 #endif |
| 823 { | |
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824 #ifdef EBCDIC |
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825 int i; |
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826 |
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827 /* This might be slower than switch/case below. */ |
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828 for (i = 0; i < 16; i++) |
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829 { |
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830 if (vim_strchr(EQUIVAL_CLASS_C[i], c) != NULL) |
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831 { |
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832 char *p = EQUIVAL_CLASS_C[i]; |
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833 |
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834 while (*p != 0) |
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835 regmbc(*p++); |
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836 return; |
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837 } |
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838 } |
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839 #else |
| 167 | 840 switch (c) |
| 841 { | |
| 6765 | 842 /* Do not use '\300' style, it results in a negative number. */ |
| 843 case 'A': case 0xc0: case 0xc1: case 0xc2: | |
| 844 case 0xc3: case 0xc4: case 0xc5: | |
| 2974 | 845 CASEMBC(0x100) CASEMBC(0x102) CASEMBC(0x104) CASEMBC(0x1cd) |
| 846 CASEMBC(0x1de) CASEMBC(0x1e0) CASEMBC(0x1ea2) | |
| 6765 | 847 regmbc('A'); regmbc(0xc0); regmbc(0xc1); |
| 848 regmbc(0xc2); regmbc(0xc3); regmbc(0xc4); | |
| 849 regmbc(0xc5); | |
| 2974 | 850 REGMBC(0x100) REGMBC(0x102) REGMBC(0x104) |
| 851 REGMBC(0x1cd) REGMBC(0x1de) REGMBC(0x1e0) | |
| 852 REGMBC(0x1ea2) | |
| 853 return; | |
| 854 case 'B': CASEMBC(0x1e02) CASEMBC(0x1e06) | |
| 855 regmbc('B'); REGMBC(0x1e02) REGMBC(0x1e06) | |
| 167 | 856 return; |
| 6765 | 857 case 'C': case 0xc7: |
| 2974 | 858 CASEMBC(0x106) CASEMBC(0x108) CASEMBC(0x10a) CASEMBC(0x10c) |
| 6765 | 859 regmbc('C'); regmbc(0xc7); |
| 2974 | 860 REGMBC(0x106) REGMBC(0x108) REGMBC(0x10a) |
| 861 REGMBC(0x10c) | |
| 862 return; | |
| 863 case 'D': CASEMBC(0x10e) CASEMBC(0x110) CASEMBC(0x1e0a) | |
| 864 CASEMBC(0x1e0e) CASEMBC(0x1e10) | |
| 865 regmbc('D'); REGMBC(0x10e) REGMBC(0x110) | |
| 866 REGMBC(0x1e0a) REGMBC(0x1e0e) REGMBC(0x1e10) | |
| 167 | 867 return; |
| 6765 | 868 case 'E': case 0xc8: case 0xc9: case 0xca: case 0xcb: |
| 2974 | 869 CASEMBC(0x112) CASEMBC(0x114) CASEMBC(0x116) CASEMBC(0x118) |
| 870 CASEMBC(0x11a) CASEMBC(0x1eba) CASEMBC(0x1ebc) | |
| 6765 | 871 regmbc('E'); regmbc(0xc8); regmbc(0xc9); |
| 872 regmbc(0xca); regmbc(0xcb); | |
| 2974 | 873 REGMBC(0x112) REGMBC(0x114) REGMBC(0x116) |
| 874 REGMBC(0x118) REGMBC(0x11a) REGMBC(0x1eba) | |
| 875 REGMBC(0x1ebc) | |
| 876 return; | |
| 877 case 'F': CASEMBC(0x1e1e) | |
| 878 regmbc('F'); REGMBC(0x1e1e) | |
| 879 return; | |
| 880 case 'G': CASEMBC(0x11c) CASEMBC(0x11e) CASEMBC(0x120) | |
| 881 CASEMBC(0x122) CASEMBC(0x1e4) CASEMBC(0x1e6) CASEMBC(0x1f4) | |
| 882 CASEMBC(0x1e20) | |
| 883 regmbc('G'); REGMBC(0x11c) REGMBC(0x11e) | |
| 884 REGMBC(0x120) REGMBC(0x122) REGMBC(0x1e4) | |
| 885 REGMBC(0x1e6) REGMBC(0x1f4) REGMBC(0x1e20) | |
| 886 return; | |
| 887 case 'H': CASEMBC(0x124) CASEMBC(0x126) CASEMBC(0x1e22) | |
| 888 CASEMBC(0x1e26) CASEMBC(0x1e28) | |
| 889 regmbc('H'); REGMBC(0x124) REGMBC(0x126) | |
| 890 REGMBC(0x1e22) REGMBC(0x1e26) REGMBC(0x1e28) | |
| 167 | 891 return; |
| 6765 | 892 case 'I': case 0xcc: case 0xcd: case 0xce: case 0xcf: |
| 2974 | 893 CASEMBC(0x128) CASEMBC(0x12a) CASEMBC(0x12c) CASEMBC(0x12e) |
| 894 CASEMBC(0x130) CASEMBC(0x1cf) CASEMBC(0x1ec8) | |
| 6765 | 895 regmbc('I'); regmbc(0xcc); regmbc(0xcd); |
| 896 regmbc(0xce); regmbc(0xcf); | |
| 2974 | 897 REGMBC(0x128) REGMBC(0x12a) REGMBC(0x12c) |
| 898 REGMBC(0x12e) REGMBC(0x130) REGMBC(0x1cf) | |
| 899 REGMBC(0x1ec8) | |
| 900 return; | |
| 901 case 'J': CASEMBC(0x134) | |
| 902 regmbc('J'); REGMBC(0x134) | |
| 903 return; | |
| 904 case 'K': CASEMBC(0x136) CASEMBC(0x1e8) CASEMBC(0x1e30) | |
| 905 CASEMBC(0x1e34) | |
| 906 regmbc('K'); REGMBC(0x136) REGMBC(0x1e8) | |
| 907 REGMBC(0x1e30) REGMBC(0x1e34) | |
| 908 return; | |
| 909 case 'L': CASEMBC(0x139) CASEMBC(0x13b) CASEMBC(0x13d) | |
| 910 CASEMBC(0x13f) CASEMBC(0x141) CASEMBC(0x1e3a) | |
| 911 regmbc('L'); REGMBC(0x139) REGMBC(0x13b) | |
| 912 REGMBC(0x13d) REGMBC(0x13f) REGMBC(0x141) | |
| 913 REGMBC(0x1e3a) | |
| 914 return; | |
| 915 case 'M': CASEMBC(0x1e3e) CASEMBC(0x1e40) | |
| 916 regmbc('M'); REGMBC(0x1e3e) REGMBC(0x1e40) | |
| 167 | 917 return; |
| 6765 | 918 case 'N': case 0xd1: |
| 2974 | 919 CASEMBC(0x143) CASEMBC(0x145) CASEMBC(0x147) CASEMBC(0x1e44) |
| 920 CASEMBC(0x1e48) | |
| 6765 | 921 regmbc('N'); regmbc(0xd1); |
| 2974 | 922 REGMBC(0x143) REGMBC(0x145) REGMBC(0x147) |
| 923 REGMBC(0x1e44) REGMBC(0x1e48) | |
| 167 | 924 return; |
| 6765 | 925 case 'O': case 0xd2: case 0xd3: case 0xd4: case 0xd5: |
| 926 case 0xd6: case 0xd8: | |
| 2974 | 927 CASEMBC(0x14c) CASEMBC(0x14e) CASEMBC(0x150) CASEMBC(0x1a0) |
| 928 CASEMBC(0x1d1) CASEMBC(0x1ea) CASEMBC(0x1ec) CASEMBC(0x1ece) | |
| 6765 | 929 regmbc('O'); regmbc(0xd2); regmbc(0xd3); |
| 930 regmbc(0xd4); regmbc(0xd5); regmbc(0xd6); | |
| 931 regmbc(0xd8); | |
| 2974 | 932 REGMBC(0x14c) REGMBC(0x14e) REGMBC(0x150) |
| 933 REGMBC(0x1a0) REGMBC(0x1d1) REGMBC(0x1ea) | |
| 934 REGMBC(0x1ec) REGMBC(0x1ece) | |
| 935 return; | |
| 936 case 'P': case 0x1e54: case 0x1e56: | |
| 937 regmbc('P'); REGMBC(0x1e54) REGMBC(0x1e56) | |
| 938 return; | |
| 939 case 'R': CASEMBC(0x154) CASEMBC(0x156) CASEMBC(0x158) | |
| 940 CASEMBC(0x1e58) CASEMBC(0x1e5e) | |
| 941 regmbc('R'); REGMBC(0x154) REGMBC(0x156) REGMBC(0x158) | |
| 942 REGMBC(0x1e58) REGMBC(0x1e5e) | |
| 943 return; | |
| 944 case 'S': CASEMBC(0x15a) CASEMBC(0x15c) CASEMBC(0x15e) | |
| 945 CASEMBC(0x160) CASEMBC(0x1e60) | |
| 946 regmbc('S'); REGMBC(0x15a) REGMBC(0x15c) | |
| 947 REGMBC(0x15e) REGMBC(0x160) REGMBC(0x1e60) | |
| 948 return; | |
| 949 case 'T': CASEMBC(0x162) CASEMBC(0x164) CASEMBC(0x166) | |
| 950 CASEMBC(0x1e6a) CASEMBC(0x1e6e) | |
| 951 regmbc('T'); REGMBC(0x162) REGMBC(0x164) | |
| 952 REGMBC(0x166) REGMBC(0x1e6a) REGMBC(0x1e6e) | |
| 167 | 953 return; |
| 6765 | 954 case 'U': case 0xd9: case 0xda: case 0xdb: case 0xdc: |
| 2974 | 955 CASEMBC(0x168) CASEMBC(0x16a) CASEMBC(0x16c) CASEMBC(0x16e) |
| 956 CASEMBC(0x170) CASEMBC(0x172) CASEMBC(0x1af) CASEMBC(0x1d3) | |
| 957 CASEMBC(0x1ee6) | |
| 6765 | 958 regmbc('U'); regmbc(0xd9); regmbc(0xda); |
| 959 regmbc(0xdb); regmbc(0xdc); | |
| 2974 | 960 REGMBC(0x168) REGMBC(0x16a) REGMBC(0x16c) |
| 961 REGMBC(0x16e) REGMBC(0x170) REGMBC(0x172) | |
| 962 REGMBC(0x1af) REGMBC(0x1d3) REGMBC(0x1ee6) | |
| 963 return; | |
| 964 case 'V': CASEMBC(0x1e7c) | |
| 965 regmbc('V'); REGMBC(0x1e7c) | |
| 966 return; | |
| 967 case 'W': CASEMBC(0x174) CASEMBC(0x1e80) CASEMBC(0x1e82) | |
| 968 CASEMBC(0x1e84) CASEMBC(0x1e86) | |
| 969 regmbc('W'); REGMBC(0x174) REGMBC(0x1e80) | |
| 970 REGMBC(0x1e82) REGMBC(0x1e84) REGMBC(0x1e86) | |
| 971 return; | |
| 972 case 'X': CASEMBC(0x1e8a) CASEMBC(0x1e8c) | |
| 973 regmbc('X'); REGMBC(0x1e8a) REGMBC(0x1e8c) | |
| 167 | 974 return; |
| 6765 | 975 case 'Y': case 0xdd: |
| 2974 | 976 CASEMBC(0x176) CASEMBC(0x178) CASEMBC(0x1e8e) CASEMBC(0x1ef2) |
| 977 CASEMBC(0x1ef6) CASEMBC(0x1ef8) | |
| 6765 | 978 regmbc('Y'); regmbc(0xdd); |
| 2974 | 979 REGMBC(0x176) REGMBC(0x178) REGMBC(0x1e8e) |
| 980 REGMBC(0x1ef2) REGMBC(0x1ef6) REGMBC(0x1ef8) | |
| 981 return; | |
| 982 case 'Z': CASEMBC(0x179) CASEMBC(0x17b) CASEMBC(0x17d) | |
| 983 CASEMBC(0x1b5) CASEMBC(0x1e90) CASEMBC(0x1e94) | |
| 984 regmbc('Z'); REGMBC(0x179) REGMBC(0x17b) | |
| 985 REGMBC(0x17d) REGMBC(0x1b5) REGMBC(0x1e90) | |
| 986 REGMBC(0x1e94) | |
| 167 | 987 return; |
| 6765 | 988 case 'a': case 0xe0: case 0xe1: case 0xe2: |
| 989 case 0xe3: case 0xe4: case 0xe5: | |
| 2974 | 990 CASEMBC(0x101) CASEMBC(0x103) CASEMBC(0x105) CASEMBC(0x1ce) |
| 991 CASEMBC(0x1df) CASEMBC(0x1e1) CASEMBC(0x1ea3) | |
| 6765 | 992 regmbc('a'); regmbc(0xe0); regmbc(0xe1); |
| 993 regmbc(0xe2); regmbc(0xe3); regmbc(0xe4); | |
| 994 regmbc(0xe5); | |
| 2974 | 995 REGMBC(0x101) REGMBC(0x103) REGMBC(0x105) |
| 996 REGMBC(0x1ce) REGMBC(0x1df) REGMBC(0x1e1) | |
| 997 REGMBC(0x1ea3) | |
| 998 return; | |
| 999 case 'b': CASEMBC(0x1e03) CASEMBC(0x1e07) | |
| 1000 regmbc('b'); REGMBC(0x1e03) REGMBC(0x1e07) | |
| 167 | 1001 return; |
| 6765 | 1002 case 'c': case 0xe7: |
| 2974 | 1003 CASEMBC(0x107) CASEMBC(0x109) CASEMBC(0x10b) CASEMBC(0x10d) |
| 6765 | 1004 regmbc('c'); regmbc(0xe7); |
| 2974 | 1005 REGMBC(0x107) REGMBC(0x109) REGMBC(0x10b) |
| 1006 REGMBC(0x10d) | |
| 1007 return; | |
| 6914 | 1008 case 'd': CASEMBC(0x10f) CASEMBC(0x111) CASEMBC(0x1e0b) |
| 1009 CASEMBC(0x1e0f) CASEMBC(0x1e11) | |
| 2974 | 1010 regmbc('d'); REGMBC(0x10f) REGMBC(0x111) |
| 6914 | 1011 REGMBC(0x1e0b) REGMBC(0x1e0f) REGMBC(0x1e11) |
| 167 | 1012 return; |
| 6765 | 1013 case 'e': case 0xe8: case 0xe9: case 0xea: case 0xeb: |
| 2974 | 1014 CASEMBC(0x113) CASEMBC(0x115) CASEMBC(0x117) CASEMBC(0x119) |
| 1015 CASEMBC(0x11b) CASEMBC(0x1ebb) CASEMBC(0x1ebd) | |
| 6765 | 1016 regmbc('e'); regmbc(0xe8); regmbc(0xe9); |
| 1017 regmbc(0xea); regmbc(0xeb); | |
| 2974 | 1018 REGMBC(0x113) REGMBC(0x115) REGMBC(0x117) |
| 1019 REGMBC(0x119) REGMBC(0x11b) REGMBC(0x1ebb) | |
| 1020 REGMBC(0x1ebd) | |
| 1021 return; | |
| 1022 case 'f': CASEMBC(0x1e1f) | |
| 1023 regmbc('f'); REGMBC(0x1e1f) | |
| 1024 return; | |
| 1025 case 'g': CASEMBC(0x11d) CASEMBC(0x11f) CASEMBC(0x121) | |
| 1026 CASEMBC(0x123) CASEMBC(0x1e5) CASEMBC(0x1e7) CASEMBC(0x1f5) | |
| 1027 CASEMBC(0x1e21) | |
| 1028 regmbc('g'); REGMBC(0x11d) REGMBC(0x11f) | |
| 1029 REGMBC(0x121) REGMBC(0x123) REGMBC(0x1e5) | |
| 1030 REGMBC(0x1e7) REGMBC(0x1f5) REGMBC(0x1e21) | |
| 1031 return; | |
| 1032 case 'h': CASEMBC(0x125) CASEMBC(0x127) CASEMBC(0x1e23) | |
| 1033 CASEMBC(0x1e27) CASEMBC(0x1e29) CASEMBC(0x1e96) | |
| 1034 regmbc('h'); REGMBC(0x125) REGMBC(0x127) | |
| 1035 REGMBC(0x1e23) REGMBC(0x1e27) REGMBC(0x1e29) | |
| 1036 REGMBC(0x1e96) | |
| 167 | 1037 return; |
| 6765 | 1038 case 'i': case 0xec: case 0xed: case 0xee: case 0xef: |
| 2974 | 1039 CASEMBC(0x129) CASEMBC(0x12b) CASEMBC(0x12d) CASEMBC(0x12f) |
| 1040 CASEMBC(0x1d0) CASEMBC(0x1ec9) | |
| 6765 | 1041 regmbc('i'); regmbc(0xec); regmbc(0xed); |
| 1042 regmbc(0xee); regmbc(0xef); | |
| 2974 | 1043 REGMBC(0x129) REGMBC(0x12b) REGMBC(0x12d) |
| 1044 REGMBC(0x12f) REGMBC(0x1d0) REGMBC(0x1ec9) | |
| 1045 return; | |
| 1046 case 'j': CASEMBC(0x135) CASEMBC(0x1f0) | |
| 1047 regmbc('j'); REGMBC(0x135) REGMBC(0x1f0) | |
| 1048 return; | |
| 1049 case 'k': CASEMBC(0x137) CASEMBC(0x1e9) CASEMBC(0x1e31) | |
| 1050 CASEMBC(0x1e35) | |
| 1051 regmbc('k'); REGMBC(0x137) REGMBC(0x1e9) | |
| 1052 REGMBC(0x1e31) REGMBC(0x1e35) | |
| 1053 return; | |
| 1054 case 'l': CASEMBC(0x13a) CASEMBC(0x13c) CASEMBC(0x13e) | |
| 1055 CASEMBC(0x140) CASEMBC(0x142) CASEMBC(0x1e3b) | |
| 1056 regmbc('l'); REGMBC(0x13a) REGMBC(0x13c) | |
| 1057 REGMBC(0x13e) REGMBC(0x140) REGMBC(0x142) | |
| 1058 REGMBC(0x1e3b) | |
| 1059 return; | |
| 1060 case 'm': CASEMBC(0x1e3f) CASEMBC(0x1e41) | |
| 1061 regmbc('m'); REGMBC(0x1e3f) REGMBC(0x1e41) | |
| 167 | 1062 return; |
| 6765 | 1063 case 'n': case 0xf1: |
| 2974 | 1064 CASEMBC(0x144) CASEMBC(0x146) CASEMBC(0x148) CASEMBC(0x149) |
| 1065 CASEMBC(0x1e45) CASEMBC(0x1e49) | |
| 6765 | 1066 regmbc('n'); regmbc(0xf1); |
| 2974 | 1067 REGMBC(0x144) REGMBC(0x146) REGMBC(0x148) |
| 1068 REGMBC(0x149) REGMBC(0x1e45) REGMBC(0x1e49) | |
| 167 | 1069 return; |
| 6765 | 1070 case 'o': case 0xf2: case 0xf3: case 0xf4: case 0xf5: |
| 1071 case 0xf6: case 0xf8: | |
| 2974 | 1072 CASEMBC(0x14d) CASEMBC(0x14f) CASEMBC(0x151) CASEMBC(0x1a1) |
| 1073 CASEMBC(0x1d2) CASEMBC(0x1eb) CASEMBC(0x1ed) CASEMBC(0x1ecf) | |
| 6765 | 1074 regmbc('o'); regmbc(0xf2); regmbc(0xf3); |
| 1075 regmbc(0xf4); regmbc(0xf5); regmbc(0xf6); | |
| 1076 regmbc(0xf8); | |
| 2974 | 1077 REGMBC(0x14d) REGMBC(0x14f) REGMBC(0x151) |
| 1078 REGMBC(0x1a1) REGMBC(0x1d2) REGMBC(0x1eb) | |
| 1079 REGMBC(0x1ed) REGMBC(0x1ecf) | |
| 1080 return; | |
| 1081 case 'p': CASEMBC(0x1e55) CASEMBC(0x1e57) | |
| 1082 regmbc('p'); REGMBC(0x1e55) REGMBC(0x1e57) | |
| 1083 return; | |
| 1084 case 'r': CASEMBC(0x155) CASEMBC(0x157) CASEMBC(0x159) | |
| 1085 CASEMBC(0x1e59) CASEMBC(0x1e5f) | |
| 1086 regmbc('r'); REGMBC(0x155) REGMBC(0x157) REGMBC(0x159) | |
| 1087 REGMBC(0x1e59) REGMBC(0x1e5f) | |
| 1088 return; | |
| 1089 case 's': CASEMBC(0x15b) CASEMBC(0x15d) CASEMBC(0x15f) | |
| 1090 CASEMBC(0x161) CASEMBC(0x1e61) | |
| 1091 regmbc('s'); REGMBC(0x15b) REGMBC(0x15d) | |
| 1092 REGMBC(0x15f) REGMBC(0x161) REGMBC(0x1e61) | |
| 1093 return; | |
| 1094 case 't': CASEMBC(0x163) CASEMBC(0x165) CASEMBC(0x167) | |
| 1095 CASEMBC(0x1e6b) CASEMBC(0x1e6f) CASEMBC(0x1e97) | |
| 1096 regmbc('t'); REGMBC(0x163) REGMBC(0x165) REGMBC(0x167) | |
| 1097 REGMBC(0x1e6b) REGMBC(0x1e6f) REGMBC(0x1e97) | |
| 167 | 1098 return; |
| 6765 | 1099 case 'u': case 0xf9: case 0xfa: case 0xfb: case 0xfc: |
| 2974 | 1100 CASEMBC(0x169) CASEMBC(0x16b) CASEMBC(0x16d) CASEMBC(0x16f) |
| 1101 CASEMBC(0x171) CASEMBC(0x173) CASEMBC(0x1b0) CASEMBC(0x1d4) | |
| 1102 CASEMBC(0x1ee7) | |
| 6765 | 1103 regmbc('u'); regmbc(0xf9); regmbc(0xfa); |
| 1104 regmbc(0xfb); regmbc(0xfc); | |
| 2974 | 1105 REGMBC(0x169) REGMBC(0x16b) REGMBC(0x16d) |
| 1106 REGMBC(0x16f) REGMBC(0x171) REGMBC(0x173) | |
| 1107 REGMBC(0x1b0) REGMBC(0x1d4) REGMBC(0x1ee7) | |
| 1108 return; | |
| 1109 case 'v': CASEMBC(0x1e7d) | |
| 1110 regmbc('v'); REGMBC(0x1e7d) | |
| 1111 return; | |
| 1112 case 'w': CASEMBC(0x175) CASEMBC(0x1e81) CASEMBC(0x1e83) | |
| 1113 CASEMBC(0x1e85) CASEMBC(0x1e87) CASEMBC(0x1e98) | |
| 1114 regmbc('w'); REGMBC(0x175) REGMBC(0x1e81) | |
| 1115 REGMBC(0x1e83) REGMBC(0x1e85) REGMBC(0x1e87) | |
| 1116 REGMBC(0x1e98) | |
| 1117 return; | |
| 1118 case 'x': CASEMBC(0x1e8b) CASEMBC(0x1e8d) | |
| 1119 regmbc('x'); REGMBC(0x1e8b) REGMBC(0x1e8d) | |
| 167 | 1120 return; |
| 6765 | 1121 case 'y': case 0xfd: case 0xff: |
| 2974 | 1122 CASEMBC(0x177) CASEMBC(0x1e8f) CASEMBC(0x1e99) |
| 1123 CASEMBC(0x1ef3) CASEMBC(0x1ef7) CASEMBC(0x1ef9) | |
| 6765 | 1124 regmbc('y'); regmbc(0xfd); regmbc(0xff); |
| 2974 | 1125 REGMBC(0x177) REGMBC(0x1e8f) REGMBC(0x1e99) |
| 1126 REGMBC(0x1ef3) REGMBC(0x1ef7) REGMBC(0x1ef9) | |
| 1127 return; | |
| 1128 case 'z': CASEMBC(0x17a) CASEMBC(0x17c) CASEMBC(0x17e) | |
| 1129 CASEMBC(0x1b6) CASEMBC(0x1e91) CASEMBC(0x1e95) | |
| 1130 regmbc('z'); REGMBC(0x17a) REGMBC(0x17c) | |
| 1131 REGMBC(0x17e) REGMBC(0x1b6) REGMBC(0x1e91) | |
| 1132 REGMBC(0x1e95) | |
| 167 | 1133 return; |
| 1134 } | |
|
2247
c40cd9aad546
Add patch to improve support of z/OS (OS/390). (Ralf Schandl)
Bram Moolenaar <bram@vim.org>
parents:
2173
diff
changeset
|
1135 #endif |
| 167 | 1136 } |
| 1137 regmbc(c); | |
| 1138 } | |
| 1139 | |
| 1140 /* | |
| 1141 * Check for a collating element "[.a.]". "pp" points to the '['. | |
| 1142 * Returns a character. Zero means that no item was recognized. Otherwise | |
| 1143 * "pp" is advanced to after the item. | |
| 1144 * Currently only single characters are recognized! | |
| 1145 */ | |
| 1146 static int | |
|
7833
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
1147 get_coll_element(char_u **pp) |
| 167 | 1148 { |
| 1149 int c; | |
| 1150 int l = 1; | |
| 1151 char_u *p = *pp; | |
| 1152 | |
| 6830 | 1153 if (p[0] != NUL && p[1] == '.') |
| 167 | 1154 { |
| 1155 #ifdef FEAT_MBYTE | |
| 1156 if (has_mbyte) | |
| 474 | 1157 l = (*mb_ptr2len)(p + 2); |
| 167 | 1158 #endif |
| 1159 if (p[l + 2] == '.' && p[l + 3] == ']') | |
| 1160 { | |
| 1161 #ifdef FEAT_MBYTE | |
| 1162 if (has_mbyte) | |
| 1163 c = mb_ptr2char(p + 2); | |
| 1164 else | |
| 1165 #endif | |
| 1166 c = p[2]; | |
| 1167 *pp += l + 4; | |
| 1168 return c; | |
| 1169 } | |
| 1170 } | |
| 1171 return 0; | |
| 1172 } | |
| 1173 | |
|
7805
0b6c37dd858d
commit https://github.com/vim/vim/commit/baaa7e9ec7398a813e21285c272fa99792642077
Christian Brabandt <cb@256bit.org>
parents:
7009
diff
changeset
|
1174 static void get_cpo_flags(void); |
|
4744
a62695305e03
updated for version 7.3.1119
Bram Moolenaar <bram@vim.org>
parents:
4732
diff
changeset
|
1175 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
|
1176 static int reg_cpo_bsl; /* 'cpoptions' contains '\' flag */ |
|
a62695305e03
updated for version 7.3.1119
Bram Moolenaar <bram@vim.org>
parents:
4732
diff
changeset
|
1177 |
|
a62695305e03
updated for version 7.3.1119
Bram Moolenaar <bram@vim.org>
parents:
4732
diff
changeset
|
1178 static void |
|
7833
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
1179 get_cpo_flags(void) |
|
4744
a62695305e03
updated for version 7.3.1119
Bram Moolenaar <bram@vim.org>
parents:
4732
diff
changeset
|
1180 { |
|
a62695305e03
updated for version 7.3.1119
Bram Moolenaar <bram@vim.org>
parents:
4732
diff
changeset
|
1181 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
|
1182 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
|
1183 } |
| 167 | 1184 |
| 1185 /* | |
| 1186 * Skip over a "[]" range. | |
| 1187 * "p" must point to the character after the '['. | |
| 1188 * The returned pointer is on the matching ']', or the terminating NUL. | |
| 1189 */ | |
| 1190 static char_u * | |
|
7833
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
1191 skip_anyof(char_u *p) |
| 167 | 1192 { |
| 1193 #ifdef FEAT_MBYTE | |
| 1194 int l; | |
| 1195 #endif | |
| 1196 | |
| 1197 if (*p == '^') /* Complement of range. */ | |
| 1198 ++p; | |
| 1199 if (*p == ']' || *p == '-') | |
| 1200 ++p; | |
| 1201 while (*p != NUL && *p != ']') | |
| 1202 { | |
| 1203 #ifdef FEAT_MBYTE | |
| 474 | 1204 if (has_mbyte && (l = (*mb_ptr2len)(p)) > 1) |
| 167 | 1205 p += l; |
| 1206 else | |
| 1207 #endif | |
| 1208 if (*p == '-') | |
| 1209 { | |
| 1210 ++p; | |
| 1211 if (*p != ']' && *p != NUL) | |
|
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1212 MB_PTR_ADV(p); |
| 167 | 1213 } |
| 1214 else if (*p == '\\' | |
|
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1215 && !reg_cpo_bsl |
| 167 | 1216 && (vim_strchr(REGEXP_INRANGE, p[1]) != NULL |
|
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1217 || (!reg_cpo_lit && vim_strchr(REGEXP_ABBR, p[1]) != NULL))) |
| 167 | 1218 p += 2; |
| 1219 else if (*p == '[') | |
| 1220 { | |
| 1221 if (get_char_class(&p) == CLASS_NONE | |
| 1222 && get_equi_class(&p) == 0 | |
| 6830 | 1223 && get_coll_element(&p) == 0 |
| 1224 && *p != NUL) | |
| 1225 ++p; /* it is not a class name and not NUL */ | |
| 167 | 1226 } |
| 1227 else | |
| 1228 ++p; | |
| 1229 } | |
| 1230 | |
| 1231 return p; | |
| 1232 } | |
| 1233 | |
| 1234 /* | |
| 7 | 1235 * Skip past regular expression. |
| 153 | 1236 * Stop at end of "startp" or where "dirc" is found ('/', '?', etc). |
| 7 | 1237 * Take care of characters with a backslash in front of it. |
| 1238 * Skip strings inside [ and ]. | |
| 1239 * When "newp" is not NULL and "dirc" is '?', make an allocated copy of the | |
| 1240 * expression and change "\?" to "?". If "*newp" is not NULL the expression | |
| 1241 * is changed in-place. | |
| 1242 */ | |
| 1243 char_u * | |
|
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1244 skip_regexp( |
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1245 char_u *startp, |
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1246 int dirc, |
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1247 int magic, |
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1248 char_u **newp) |
| 7 | 1249 { |
| 1250 int mymagic; | |
| 1251 char_u *p = startp; | |
| 1252 | |
| 1253 if (magic) | |
| 1254 mymagic = MAGIC_ON; | |
| 1255 else | |
| 1256 mymagic = MAGIC_OFF; | |
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1257 get_cpo_flags(); |
| 7 | 1258 |
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1259 for (; p[0] != NUL; MB_PTR_ADV(p)) |
| 7 | 1260 { |
| 1261 if (p[0] == dirc) /* found end of regexp */ | |
| 1262 break; | |
| 1263 if ((p[0] == '[' && mymagic >= MAGIC_ON) | |
| 1264 || (p[0] == '\\' && p[1] == '[' && mymagic <= MAGIC_OFF)) | |
| 1265 { | |
| 1266 p = skip_anyof(p + 1); | |
| 1267 if (p[0] == NUL) | |
| 1268 break; | |
| 1269 } | |
| 1270 else if (p[0] == '\\' && p[1] != NUL) | |
| 1271 { | |
| 1272 if (dirc == '?' && newp != NULL && p[1] == '?') | |
| 1273 { | |
| 1274 /* change "\?" to "?", make a copy first. */ | |
| 1275 if (*newp == NULL) | |
| 1276 { | |
| 1277 *newp = vim_strsave(startp); | |
| 1278 if (*newp != NULL) | |
| 1279 p = *newp + (p - startp); | |
| 1280 } | |
| 1281 if (*newp != NULL) | |
| 1621 | 1282 STRMOVE(p, p + 1); |
| 7 | 1283 else |
| 1284 ++p; | |
| 1285 } | |
| 1286 else | |
| 1287 ++p; /* skip next character */ | |
| 1288 if (*p == 'v') | |
| 1289 mymagic = MAGIC_ALL; | |
| 1290 else if (*p == 'V') | |
| 1291 mymagic = MAGIC_NONE; | |
| 1292 } | |
| 1293 } | |
| 1294 return p; | |
| 1295 } | |
| 1296 | |
|
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1297 /* |
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1298 * Return TRUE if the back reference is legal. We must have seen the close |
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1299 * brace. |
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1300 * TODO: Should also check that we don't refer to something that is repeated |
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1301 * (+*=): what instance of the repetition should we match? |
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1302 */ |
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1303 static int |
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1304 seen_endbrace(int refnum) |
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1305 { |
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1306 if (!had_endbrace[refnum]) |
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1307 { |
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1308 char_u *p; |
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1309 |
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1310 /* Trick: check if "@<=" or "@<!" follows, in which case |
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1311 * the \1 can appear before the referenced match. */ |
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1312 for (p = regparse; *p != NUL; ++p) |
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1313 if (p[0] == '@' && p[1] == '<' && (p[2] == '!' || p[2] == '=')) |
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1314 break; |
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1315 if (*p == NUL) |
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1316 { |
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1317 EMSG(_("E65: Illegal back reference")); |
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1318 rc_did_emsg = TRUE; |
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1319 return FALSE; |
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1320 } |
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1321 } |
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1322 return TRUE; |
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1323 } |
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1324 |
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1325 static regprog_T *bt_regcomp(char_u *expr, int re_flags); |
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1326 static void bt_regfree(regprog_T *prog); |
| 4444 | 1327 |
| 7 | 1328 /* |
| 4444 | 1329 * bt_regcomp() - compile a regular expression into internal code for the |
| 1330 * traditional back track matcher. | |
| 41 | 1331 * Returns the program in allocated space. Returns NULL for an error. |
| 7 | 1332 * |
| 1333 * We can't allocate space until we know how big the compiled form will be, | |
| 1334 * but we can't compile it (and thus know how big it is) until we've got a | |
| 1335 * place to put the code. So we cheat: we compile it twice, once with code | |
| 1336 * generation turned off and size counting turned on, and once "for real". | |
| 1337 * This also means that we don't allocate space until we are sure that the | |
| 1338 * thing really will compile successfully, and we never have to move the | |
| 1339 * code and thus invalidate pointers into it. (Note that it has to be in | |
| 1340 * one piece because vim_free() must be able to free it all.) | |
| 1341 * | |
| 1342 * Whether upper/lower case is to be ignored is decided when executing the | |
| 1343 * program, it does not matter here. | |
| 1344 * | |
| 1345 * Beware that the optimization-preparation code in here knows about some | |
| 1346 * of the structure of the compiled regexp. | |
| 1347 * "re_flags": RE_MAGIC and/or RE_STRING. | |
| 1348 */ | |
| 4444 | 1349 static regprog_T * |
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1350 bt_regcomp(char_u *expr, int re_flags) |
| 7 | 1351 { |
| 4444 | 1352 bt_regprog_T *r; |
| 7 | 1353 char_u *scan; |
| 1354 char_u *longest; | |
| 1355 int len; | |
| 1356 int flags; | |
| 1357 | |
| 1358 if (expr == NULL) | |
| 1359 EMSG_RET_NULL(_(e_null)); | |
| 1360 | |
| 1361 init_class_tab(); | |
| 1362 | |
| 1363 /* | |
| 1364 * First pass: determine size, legality. | |
| 1365 */ | |
| 1366 regcomp_start(expr, re_flags); | |
| 1367 regcode = JUST_CALC_SIZE; | |
| 1368 regc(REGMAGIC); | |
| 1369 if (reg(REG_NOPAREN, &flags) == NULL) | |
| 1370 return NULL; | |
| 1371 | |
| 1372 /* Allocate space. */ | |
| 4444 | 1373 r = (bt_regprog_T *)lalloc(sizeof(bt_regprog_T) + regsize, TRUE); |
| 7 | 1374 if (r == NULL) |
| 1375 return NULL; | |
| 1376 | |
| 1377 /* | |
| 1378 * Second pass: emit code. | |
| 1379 */ | |
| 1380 regcomp_start(expr, re_flags); | |
| 1381 regcode = r->program; | |
| 1382 regc(REGMAGIC); | |
| 2010 | 1383 if (reg(REG_NOPAREN, &flags) == NULL || reg_toolong) |
| 7 | 1384 { |
| 1385 vim_free(r); | |
| 2010 | 1386 if (reg_toolong) |
| 1387 EMSG_RET_NULL(_("E339: Pattern too long")); | |
| 7 | 1388 return NULL; |
| 1389 } | |
| 1390 | |
| 1391 /* Dig out information for optimizations. */ | |
| 1392 r->regstart = NUL; /* Worst-case defaults. */ | |
| 1393 r->reganch = 0; | |
| 1394 r->regmust = NULL; | |
| 1395 r->regmlen = 0; | |
| 1396 r->regflags = regflags; | |
| 1397 if (flags & HASNL) | |
| 1398 r->regflags |= RF_HASNL; | |
| 1399 if (flags & HASLOOKBH) | |
| 1400 r->regflags |= RF_LOOKBH; | |
| 1401 #ifdef FEAT_SYN_HL | |
| 1402 /* Remember whether this pattern has any \z specials in it. */ | |
| 1403 r->reghasz = re_has_z; | |
| 1404 #endif | |
| 1405 scan = r->program + 1; /* First BRANCH. */ | |
| 1406 if (OP(regnext(scan)) == END) /* Only one top-level choice. */ | |
| 1407 { | |
| 1408 scan = OPERAND(scan); | |
| 1409 | |
| 1410 /* Starting-point info. */ | |
| 1411 if (OP(scan) == BOL || OP(scan) == RE_BOF) | |
| 1412 { | |
| 1413 r->reganch++; | |
| 1414 scan = regnext(scan); | |
| 1415 } | |
| 1416 | |
| 1417 if (OP(scan) == EXACTLY) | |
| 1418 { | |
| 1419 #ifdef FEAT_MBYTE | |
| 1420 if (has_mbyte) | |
| 1421 r->regstart = (*mb_ptr2char)(OPERAND(scan)); | |
| 1422 else | |
| 1423 #endif | |
| 1424 r->regstart = *OPERAND(scan); | |
| 1425 } | |
| 1426 else if ((OP(scan) == BOW | |
| 1427 || OP(scan) == EOW | |
| 1428 || OP(scan) == NOTHING | |
| 1429 || OP(scan) == MOPEN + 0 || OP(scan) == NOPEN | |
| 1430 || OP(scan) == MCLOSE + 0 || OP(scan) == NCLOSE) | |
| 1431 && OP(regnext(scan)) == EXACTLY) | |
| 1432 { | |
| 1433 #ifdef FEAT_MBYTE | |
| 1434 if (has_mbyte) | |
| 1435 r->regstart = (*mb_ptr2char)(OPERAND(regnext(scan))); | |
| 1436 else | |
| 1437 #endif | |
| 1438 r->regstart = *OPERAND(regnext(scan)); | |
| 1439 } | |
| 1440 | |
| 1441 /* | |
| 1442 * If there's something expensive in the r.e., find the longest | |
| 1443 * literal string that must appear and make it the regmust. Resolve | |
| 1444 * ties in favor of later strings, since the regstart check works | |
| 1445 * with the beginning of the r.e. and avoiding duplication | |
| 1446 * strengthens checking. Not a strong reason, but sufficient in the | |
| 1447 * absence of others. | |
| 1448 */ | |
| 1449 /* | |
| 1450 * When the r.e. starts with BOW, it is faster to look for a regmust | |
| 1451 * first. Used a lot for "#" and "*" commands. (Added by mool). | |
| 1452 */ | |
| 1453 if ((flags & SPSTART || OP(scan) == BOW || OP(scan) == EOW) | |
| 1454 && !(flags & HASNL)) | |
| 1455 { | |
| 1456 longest = NULL; | |
| 1457 len = 0; | |
| 1458 for (; scan != NULL; scan = regnext(scan)) | |
| 1459 if (OP(scan) == EXACTLY && STRLEN(OPERAND(scan)) >= (size_t)len) | |
| 1460 { | |
| 1461 longest = OPERAND(scan); | |
| 1462 len = (int)STRLEN(OPERAND(scan)); | |
| 1463 } | |
| 1464 r->regmust = longest; | |
| 1465 r->regmlen = len; | |
| 1466 } | |
| 1467 } | |
| 4444 | 1468 #ifdef BT_REGEXP_DUMP |
| 7 | 1469 regdump(expr, r); |
| 1470 #endif | |
| 4444 | 1471 r->engine = &bt_regengine; |
| 1472 return (regprog_T *)r; | |
| 7 | 1473 } |
| 1474 | |
| 1475 /* | |
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1476 * Free a compiled regexp program, returned by bt_regcomp(). |
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1477 */ |
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1478 static void |
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1479 bt_regfree(regprog_T *prog) |
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1480 { |
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1481 vim_free(prog); |
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1482 } |
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1483 |
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1484 /* |
| 7 | 1485 * Setup to parse the regexp. Used once to get the length and once to do it. |
| 1486 */ | |
| 1487 static void | |
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1488 regcomp_start( |
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1489 char_u *expr, |
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1490 int re_flags) /* see vim_regcomp() */ |
| 7 | 1491 { |
| 1492 initchr(expr); | |
| 1493 if (re_flags & RE_MAGIC) | |
| 1494 reg_magic = MAGIC_ON; | |
| 1495 else | |
| 1496 reg_magic = MAGIC_OFF; | |
| 1497 reg_string = (re_flags & RE_STRING); | |
| 481 | 1498 reg_strict = (re_flags & RE_STRICT); |
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1499 get_cpo_flags(); |
| 7 | 1500 |
| 1501 num_complex_braces = 0; | |
| 1502 regnpar = 1; | |
| 1503 vim_memset(had_endbrace, 0, sizeof(had_endbrace)); | |
| 1504 #ifdef FEAT_SYN_HL | |
| 1505 regnzpar = 1; | |
| 1506 re_has_z = 0; | |
| 1507 #endif | |
| 1508 regsize = 0L; | |
| 2010 | 1509 reg_toolong = FALSE; |
| 7 | 1510 regflags = 0; |
| 1511 #if defined(FEAT_SYN_HL) || defined(PROTO) | |
| 1512 had_eol = FALSE; | |
| 1513 #endif | |
| 1514 } | |
| 1515 | |
| 1516 #if defined(FEAT_SYN_HL) || defined(PROTO) | |
| 1517 /* | |
| 1518 * Check if during the previous call to vim_regcomp the EOL item "$" has been | |
| 1519 * found. This is messy, but it works fine. | |
| 1520 */ | |
| 1521 int | |
|
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1522 vim_regcomp_had_eol(void) |
| 7 | 1523 { |
| 1524 return had_eol; | |
| 1525 } | |
| 1526 #endif | |
| 1527 | |
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1528 /* variables for parsing reginput */ |
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1529 static int at_start; /* True when on the first character */ |
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1530 static int prev_at_start; /* True when on the second character */ |
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1531 |
| 7 | 1532 /* |
| 4444 | 1533 * Parse regular expression, i.e. main body or parenthesized thing. |
| 7 | 1534 * |
| 1535 * Caller must absorb opening parenthesis. | |
| 1536 * | |
| 1537 * Combining parenthesis handling with the base level of regular expression | |
| 1538 * is a trifle forced, but the need to tie the tails of the branches to what | |
| 1539 * follows makes it hard to avoid. | |
| 1540 */ | |
| 1541 static char_u * | |
|
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1542 reg( |
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1543 int paren, /* REG_NOPAREN, REG_PAREN, REG_NPAREN or REG_ZPAREN */ |
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1544 int *flagp) |
| 7 | 1545 { |
| 1546 char_u *ret; | |
| 1547 char_u *br; | |
| 1548 char_u *ender; | |
| 1549 int parno = 0; | |
| 1550 int flags; | |
| 1551 | |
| 1552 *flagp = HASWIDTH; /* Tentatively. */ | |
| 1553 | |
| 1554 #ifdef FEAT_SYN_HL | |
| 1555 if (paren == REG_ZPAREN) | |
| 1556 { | |
| 1557 /* Make a ZOPEN node. */ | |
| 1558 if (regnzpar >= NSUBEXP) | |
| 1559 EMSG_RET_NULL(_("E50: Too many \\z(")); | |
| 1560 parno = regnzpar; | |
| 1561 regnzpar++; | |
| 1562 ret = regnode(ZOPEN + parno); | |
| 1563 } | |
| 1564 else | |
| 1565 #endif | |
| 1566 if (paren == REG_PAREN) | |
| 1567 { | |
| 1568 /* Make a MOPEN node. */ | |
| 1569 if (regnpar >= NSUBEXP) | |
| 4444 | 1570 EMSG2_RET_NULL(_("E51: Too many %s("), reg_magic == MAGIC_ALL); |
| 7 | 1571 parno = regnpar; |
| 1572 ++regnpar; | |
| 1573 ret = regnode(MOPEN + parno); | |
| 1574 } | |
| 1575 else if (paren == REG_NPAREN) | |
| 1576 { | |
| 1577 /* Make a NOPEN node. */ | |
| 1578 ret = regnode(NOPEN); | |
| 1579 } | |
| 1580 else | |
| 1581 ret = NULL; | |
| 1582 | |
| 1583 /* Pick up the branches, linking them together. */ | |
| 1584 br = regbranch(&flags); | |
| 1585 if (br == NULL) | |
| 1586 return NULL; | |
| 1587 if (ret != NULL) | |
| 1588 regtail(ret, br); /* [MZ]OPEN -> first. */ | |
| 1589 else | |
| 1590 ret = br; | |
| 1591 /* If one of the branches can be zero-width, the whole thing can. | |
| 1592 * If one of the branches has * at start or matches a line-break, the | |
| 1593 * whole thing can. */ | |
| 1594 if (!(flags & HASWIDTH)) | |
| 1595 *flagp &= ~HASWIDTH; | |
| 1596 *flagp |= flags & (SPSTART | HASNL | HASLOOKBH); | |
| 1597 while (peekchr() == Magic('|')) | |
| 1598 { | |
| 1599 skipchr(); | |
| 1600 br = regbranch(&flags); | |
| 2010 | 1601 if (br == NULL || reg_toolong) |
| 7 | 1602 return NULL; |
| 1603 regtail(ret, br); /* BRANCH -> BRANCH. */ | |
| 1604 if (!(flags & HASWIDTH)) | |
| 1605 *flagp &= ~HASWIDTH; | |
| 1606 *flagp |= flags & (SPSTART | HASNL | HASLOOKBH); | |
| 1607 } | |
| 1608 | |
| 1609 /* Make a closing node, and hook it on the end. */ | |
| 1610 ender = regnode( | |
| 1611 #ifdef FEAT_SYN_HL | |
| 1612 paren == REG_ZPAREN ? ZCLOSE + parno : | |
| 1613 #endif | |
| 1614 paren == REG_PAREN ? MCLOSE + parno : | |
| 1615 paren == REG_NPAREN ? NCLOSE : END); | |
| 1616 regtail(ret, ender); | |
| 1617 | |
| 1618 /* Hook the tails of the branches to the closing node. */ | |
| 1619 for (br = ret; br != NULL; br = regnext(br)) | |
| 1620 regoptail(br, ender); | |
| 1621 | |
| 1622 /* Check for proper termination. */ | |
| 1623 if (paren != REG_NOPAREN && getchr() != Magic(')')) | |
| 1624 { | |
| 1625 #ifdef FEAT_SYN_HL | |
| 1626 if (paren == REG_ZPAREN) | |
| 308 | 1627 EMSG_RET_NULL(_("E52: Unmatched \\z(")); |
| 7 | 1628 else |
| 1629 #endif | |
| 1630 if (paren == REG_NPAREN) | |
| 4444 | 1631 EMSG2_RET_NULL(_(e_unmatchedpp), reg_magic == MAGIC_ALL); |
| 7 | 1632 else |
| 4444 | 1633 EMSG2_RET_NULL(_(e_unmatchedp), reg_magic == MAGIC_ALL); |
| 7 | 1634 } |
| 1635 else if (paren == REG_NOPAREN && peekchr() != NUL) | |
| 1636 { | |
| 1637 if (curchr == Magic(')')) | |
| 4444 | 1638 EMSG2_RET_NULL(_(e_unmatchedpar), reg_magic == MAGIC_ALL); |
| 7 | 1639 else |
| 308 | 1640 EMSG_RET_NULL(_(e_trailing)); /* "Can't happen". */ |
| 7 | 1641 /* NOTREACHED */ |
| 1642 } | |
| 1643 /* | |
| 1644 * Here we set the flag allowing back references to this set of | |
| 1645 * parentheses. | |
| 1646 */ | |
| 1647 if (paren == REG_PAREN) | |
| 1648 had_endbrace[parno] = TRUE; /* have seen the close paren */ | |
| 1649 return ret; | |
| 1650 } | |
| 1651 | |
| 1652 /* | |
| 4444 | 1653 * Parse one alternative of an | operator. |
| 7 | 1654 * Implements the & operator. |
| 1655 */ | |
| 1656 static char_u * | |
|
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1657 regbranch(int *flagp) |
| 7 | 1658 { |
| 1659 char_u *ret; | |
| 1660 char_u *chain = NULL; | |
| 1661 char_u *latest; | |
| 1662 int flags; | |
| 1663 | |
| 1664 *flagp = WORST | HASNL; /* Tentatively. */ | |
| 1665 | |
| 1666 ret = regnode(BRANCH); | |
| 1667 for (;;) | |
| 1668 { | |
| 1669 latest = regconcat(&flags); | |
| 1670 if (latest == NULL) | |
| 1671 return NULL; | |
| 1672 /* If one of the branches has width, the whole thing has. If one of | |
| 1673 * the branches anchors at start-of-line, the whole thing does. | |
| 1674 * If one of the branches uses look-behind, the whole thing does. */ | |
| 1675 *flagp |= flags & (HASWIDTH | SPSTART | HASLOOKBH); | |
| 1676 /* If one of the branches doesn't match a line-break, the whole thing | |
| 1677 * doesn't. */ | |
| 1678 *flagp &= ~HASNL | (flags & HASNL); | |
| 1679 if (chain != NULL) | |
| 1680 regtail(chain, latest); | |
| 1681 if (peekchr() != Magic('&')) | |
| 1682 break; | |
| 1683 skipchr(); | |
| 1684 regtail(latest, regnode(END)); /* operand ends */ | |
| 2010 | 1685 if (reg_toolong) |
| 1686 break; | |
| 7 | 1687 reginsert(MATCH, latest); |
| 1688 chain = latest; | |
| 1689 } | |
| 1690 | |
| 1691 return ret; | |
| 1692 } | |
| 1693 | |
| 1694 /* | |
| 4444 | 1695 * Parse one alternative of an | or & operator. |
| 7 | 1696 * Implements the concatenation operator. |
| 1697 */ | |
| 1698 static char_u * | |
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1699 regconcat(int *flagp) |
| 7 | 1700 { |
| 1701 char_u *first = NULL; | |
| 1702 char_u *chain = NULL; | |
| 1703 char_u *latest; | |
| 1704 int flags; | |
| 1705 int cont = TRUE; | |
| 1706 | |
| 1707 *flagp = WORST; /* Tentatively. */ | |
| 1708 | |
| 1709 while (cont) | |
| 1710 { | |
| 1711 switch (peekchr()) | |
| 1712 { | |
| 1713 case NUL: | |
| 1714 case Magic('|'): | |
| 1715 case Magic('&'): | |
| 1716 case Magic(')'): | |
| 1717 cont = FALSE; | |
| 1718 break; | |
| 1719 case Magic('Z'): | |
| 1720 #ifdef FEAT_MBYTE | |
| 1721 regflags |= RF_ICOMBINE; | |
| 1722 #endif | |
| 1723 skipchr_keepstart(); | |
| 1724 break; | |
| 1725 case Magic('c'): | |
| 1726 regflags |= RF_ICASE; | |
| 1727 skipchr_keepstart(); | |
| 1728 break; | |
| 1729 case Magic('C'): | |
| 1730 regflags |= RF_NOICASE; | |
| 1731 skipchr_keepstart(); | |
| 1732 break; | |
| 1733 case Magic('v'): | |
| 1734 reg_magic = MAGIC_ALL; | |
| 1735 skipchr_keepstart(); | |
| 1736 curchr = -1; | |
| 1737 break; | |
| 1738 case Magic('m'): | |
| 1739 reg_magic = MAGIC_ON; | |
| 1740 skipchr_keepstart(); | |
| 1741 curchr = -1; | |
| 1742 break; | |
| 1743 case Magic('M'): | |
| 1744 reg_magic = MAGIC_OFF; | |
| 1745 skipchr_keepstart(); | |
| 1746 curchr = -1; | |
| 1747 break; | |
| 1748 case Magic('V'): | |
| 1749 reg_magic = MAGIC_NONE; | |
| 1750 skipchr_keepstart(); | |
| 1751 curchr = -1; | |
| 1752 break; | |
| 1753 default: | |
| 1754 latest = regpiece(&flags); | |
| 2010 | 1755 if (latest == NULL || reg_toolong) |
| 7 | 1756 return NULL; |
| 1757 *flagp |= flags & (HASWIDTH | HASNL | HASLOOKBH); | |
| 1758 if (chain == NULL) /* First piece. */ | |
| 1759 *flagp |= flags & SPSTART; | |
| 1760 else | |
| 1761 regtail(chain, latest); | |
| 1762 chain = latest; | |
| 1763 if (first == NULL) | |
| 1764 first = latest; | |
| 1765 break; | |
| 1766 } | |
| 1767 } | |
| 1768 if (first == NULL) /* Loop ran zero times. */ | |
| 1769 first = regnode(NOTHING); | |
| 1770 return first; | |
| 1771 } | |
| 1772 | |
| 1773 /* | |
| 4444 | 1774 * Parse something followed by possible [*+=]. |
| 7 | 1775 * |
| 1776 * Note that the branching code sequences used for = and the general cases | |
| 1777 * of * and + are somewhat optimized: they use the same NOTHING node as | |
| 1778 * both the endmarker for their branch list and the body of the last branch. | |
| 1779 * It might seem that this node could be dispensed with entirely, but the | |
| 1780 * endmarker role is not redundant. | |
| 1781 */ | |
| 1782 static char_u * | |
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1783 regpiece(int *flagp) |
| 7 | 1784 { |
| 1785 char_u *ret; | |
| 1786 int op; | |
| 1787 char_u *next; | |
| 1788 int flags; | |
| 1789 long minval; | |
| 1790 long maxval; | |
| 1791 | |
| 1792 ret = regatom(&flags); | |
| 1793 if (ret == NULL) | |
| 1794 return NULL; | |
| 1795 | |
| 1796 op = peekchr(); | |
| 1797 if (re_multi_type(op) == NOT_MULTI) | |
| 1798 { | |
| 1799 *flagp = flags; | |
| 1800 return ret; | |
| 1801 } | |
| 1802 /* default flags */ | |
| 1803 *flagp = (WORST | SPSTART | (flags & (HASNL | HASLOOKBH))); | |
| 1804 | |
| 1805 skipchr(); | |
| 1806 switch (op) | |
| 1807 { | |
| 1808 case Magic('*'): | |
| 1809 if (flags & SIMPLE) | |
| 1810 reginsert(STAR, ret); | |
| 1811 else | |
| 1812 { | |
| 1813 /* Emit x* as (x&|), where & means "self". */ | |
| 1814 reginsert(BRANCH, ret); /* Either x */ | |
| 1815 regoptail(ret, regnode(BACK)); /* and loop */ | |
| 1816 regoptail(ret, ret); /* back */ | |
| 1817 regtail(ret, regnode(BRANCH)); /* or */ | |
| 1818 regtail(ret, regnode(NOTHING)); /* null. */ | |
| 1819 } | |
| 1820 break; | |
| 1821 | |
| 1822 case Magic('+'): | |
| 1823 if (flags & SIMPLE) | |
| 1824 reginsert(PLUS, ret); | |
| 1825 else | |
| 1826 { | |
| 1827 /* Emit x+ as x(&|), where & means "self". */ | |
| 1828 next = regnode(BRANCH); /* Either */ | |
| 1829 regtail(ret, next); | |
| 233 | 1830 regtail(regnode(BACK), ret); /* loop back */ |
| 7 | 1831 regtail(next, regnode(BRANCH)); /* or */ |
| 1832 regtail(ret, regnode(NOTHING)); /* null. */ | |
| 1833 } | |
| 1834 *flagp = (WORST | HASWIDTH | (flags & (HASNL | HASLOOKBH))); | |
| 1835 break; | |
| 1836 | |
| 1837 case Magic('@'): | |
| 1838 { | |
| 1839 int lop = END; | |
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1840 int nr; |
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1841 |
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1842 nr = getdecchrs(); |
| 7 | 1843 switch (no_Magic(getchr())) |
| 1844 { | |
| 1845 case '=': lop = MATCH; break; /* \@= */ | |
| 1846 case '!': lop = NOMATCH; break; /* \@! */ | |
| 1847 case '>': lop = SUBPAT; break; /* \@> */ | |
| 1848 case '<': switch (no_Magic(getchr())) | |
| 1849 { | |
| 1850 case '=': lop = BEHIND; break; /* \@<= */ | |
| 1851 case '!': lop = NOBEHIND; break; /* \@<! */ | |
| 1852 } | |
| 1853 } | |
| 1854 if (lop == END) | |
| 4444 | 1855 EMSG2_RET_NULL(_("E59: invalid character after %s@"), |
| 7 | 1856 reg_magic == MAGIC_ALL); |
| 1857 /* Look behind must match with behind_pos. */ | |
| 1858 if (lop == BEHIND || lop == NOBEHIND) | |
| 1859 { | |
| 1860 regtail(ret, regnode(BHPOS)); | |
| 1861 *flagp |= HASLOOKBH; | |
| 1862 } | |
| 1863 regtail(ret, regnode(END)); /* operand ends */ | |
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1864 if (lop == BEHIND || lop == NOBEHIND) |
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1865 { |
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1866 if (nr < 0) |
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1867 nr = 0; /* no limit is same as zero limit */ |
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1868 reginsert_nr(lop, nr, ret); |
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1869 } |
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1870 else |
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1871 reginsert(lop, ret); |
| 7 | 1872 break; |
| 1873 } | |
| 1874 | |
| 1875 case Magic('?'): | |
| 1876 case Magic('='): | |
| 1877 /* Emit x= as (x|) */ | |
| 1878 reginsert(BRANCH, ret); /* Either x */ | |
| 1879 regtail(ret, regnode(BRANCH)); /* or */ | |
| 1880 next = regnode(NOTHING); /* null. */ | |
| 1881 regtail(ret, next); | |
| 1882 regoptail(ret, next); | |
| 1883 break; | |
| 1884 | |
| 1885 case Magic('{'): | |
| 1886 if (!read_limits(&minval, &maxval)) | |
| 1887 return NULL; | |
| 1888 if (flags & SIMPLE) | |
| 1889 { | |
| 1890 reginsert(BRACE_SIMPLE, ret); | |
| 1891 reginsert_limits(BRACE_LIMITS, minval, maxval, ret); | |
| 1892 } | |
| 1893 else | |
| 1894 { | |
| 1895 if (num_complex_braces >= 10) | |
| 4444 | 1896 EMSG2_RET_NULL(_("E60: Too many complex %s{...}s"), |
| 7 | 1897 reg_magic == MAGIC_ALL); |
| 1898 reginsert(BRACE_COMPLEX + num_complex_braces, ret); | |
| 1899 regoptail(ret, regnode(BACK)); | |
| 1900 regoptail(ret, ret); | |
| 1901 reginsert_limits(BRACE_LIMITS, minval, maxval, ret); | |
| 1902 ++num_complex_braces; | |
| 1903 } | |
| 1904 if (minval > 0 && maxval > 0) | |
| 1905 *flagp = (HASWIDTH | (flags & (HASNL | HASLOOKBH))); | |
| 1906 break; | |
| 1907 } | |
| 1908 if (re_multi_type(peekchr()) != NOT_MULTI) | |
| 1909 { | |
| 1910 /* Can't have a multi follow a multi. */ | |
| 1911 if (peekchr() == Magic('*')) | |
| 1912 sprintf((char *)IObuff, _("E61: Nested %s*"), | |
| 1913 reg_magic >= MAGIC_ON ? "" : "\\"); | |
| 1914 else | |
| 1915 sprintf((char *)IObuff, _("E62: Nested %s%c"), | |
| 1916 reg_magic == MAGIC_ALL ? "" : "\\", no_Magic(peekchr())); | |
| 1917 EMSG_RET_NULL(IObuff); | |
| 1918 } | |
| 1919 | |
| 1920 return ret; | |
| 1921 } | |
| 1922 | |
| 4444 | 1923 /* When making changes to classchars also change nfa_classcodes. */ |
| 1924 static char_u *classchars = (char_u *)".iIkKfFpPsSdDxXoOwWhHaAlLuU"; | |
| 1925 static int classcodes[] = { | |
| 1926 ANY, IDENT, SIDENT, KWORD, SKWORD, | |
| 1927 FNAME, SFNAME, PRINT, SPRINT, | |
| 1928 WHITE, NWHITE, DIGIT, NDIGIT, | |
| 1929 HEX, NHEX, OCTAL, NOCTAL, | |
| 1930 WORD, NWORD, HEAD, NHEAD, | |
| 1931 ALPHA, NALPHA, LOWER, NLOWER, | |
| 1932 UPPER, NUPPER | |
| 1933 }; | |
| 1934 | |
| 7 | 1935 /* |
| 4444 | 1936 * Parse the lowest level. |
| 7 | 1937 * |
| 1938 * Optimization: gobbles an entire sequence of ordinary characters so that | |
| 1939 * it can turn them into a single node, which is smaller to store and | |
| 1940 * faster to run. Don't do this when one_exactly is set. | |
| 1941 */ | |
| 1942 static char_u * | |
|
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1943 regatom(int *flagp) |
| 7 | 1944 { |
| 1945 char_u *ret; | |
| 1946 int flags; | |
| 1947 int c; | |
| 1948 char_u *p; | |
| 1949 int extra = 0; | |
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1950 int save_prev_at_start = prev_at_start; |
| 7 | 1951 |
| 1952 *flagp = WORST; /* Tentatively. */ | |
| 1953 | |
| 1954 c = getchr(); | |
| 1955 switch (c) | |
| 1956 { | |
| 1957 case Magic('^'): | |
| 1958 ret = regnode(BOL); | |
| 1959 break; | |
| 1960 | |
| 1961 case Magic('$'): | |
| 1962 ret = regnode(EOL); | |
| 1963 #if defined(FEAT_SYN_HL) || defined(PROTO) | |
| 1964 had_eol = TRUE; | |
| 1965 #endif | |
| 1966 break; | |
| 1967 | |
| 1968 case Magic('<'): | |
| 1969 ret = regnode(BOW); | |
| 1970 break; | |
| 1971 | |
| 1972 case Magic('>'): | |
| 1973 ret = regnode(EOW); | |
| 1974 break; | |
| 1975 | |
| 1976 case Magic('_'): | |
| 1977 c = no_Magic(getchr()); | |
| 1978 if (c == '^') /* "\_^" is start-of-line */ | |
| 1979 { | |
| 1980 ret = regnode(BOL); | |
| 1981 break; | |
| 1982 } | |
| 1983 if (c == '$') /* "\_$" is end-of-line */ | |
| 1984 { | |
| 1985 ret = regnode(EOL); | |
| 1986 #if defined(FEAT_SYN_HL) || defined(PROTO) | |
| 1987 had_eol = TRUE; | |
| 1988 #endif | |
| 1989 break; | |
| 1990 } | |
| 1991 | |
| 1992 extra = ADD_NL; | |
| 1993 *flagp |= HASNL; | |
| 1994 | |
| 1995 /* "\_[" is character range plus newline */ | |
| 1996 if (c == '[') | |
| 1997 goto collection; | |
| 1998 | |
| 1999 /* "\_x" is character class plus newline */ | |
| 2000 /*FALLTHROUGH*/ | |
| 2001 | |
| 2002 /* | |
| 2003 * Character classes. | |
| 2004 */ | |
| 2005 case Magic('.'): | |
| 2006 case Magic('i'): | |
| 2007 case Magic('I'): | |
| 2008 case Magic('k'): | |
| 2009 case Magic('K'): | |
| 2010 case Magic('f'): | |
| 2011 case Magic('F'): | |
| 2012 case Magic('p'): | |
| 2013 case Magic('P'): | |
| 2014 case Magic('s'): | |
| 2015 case Magic('S'): | |
| 2016 case Magic('d'): | |
| 2017 case Magic('D'): | |
| 2018 case Magic('x'): | |
| 2019 case Magic('X'): | |
| 2020 case Magic('o'): | |
| 2021 case Magic('O'): | |
| 2022 case Magic('w'): | |
| 2023 case Magic('W'): | |
| 2024 case Magic('h'): | |
| 2025 case Magic('H'): | |
| 2026 case Magic('a'): | |
| 2027 case Magic('A'): | |
| 2028 case Magic('l'): | |
| 2029 case Magic('L'): | |
| 2030 case Magic('u'): | |
| 2031 case Magic('U'): | |
| 2032 p = vim_strchr(classchars, no_Magic(c)); | |
| 2033 if (p == NULL) | |
| 2034 EMSG_RET_NULL(_("E63: invalid use of \\_")); | |
| 714 | 2035 #ifdef FEAT_MBYTE |
| 2036 /* When '.' is followed by a composing char ignore the dot, so that | |
| 2037 * the composing char is matched here. */ | |
| 2038 if (enc_utf8 && c == Magic('.') && utf_iscomposing(peekchr())) | |
| 2039 { | |
| 2040 c = getchr(); | |
| 2041 goto do_multibyte; | |
| 2042 } | |
| 2043 #endif | |
| 7 | 2044 ret = regnode(classcodes[p - classchars] + extra); |
| 2045 *flagp |= HASWIDTH | SIMPLE; | |
| 2046 break; | |
| 2047 | |
| 2048 case Magic('n'): | |
| 2049 if (reg_string) | |
| 2050 { | |
| 2051 /* In a string "\n" matches a newline character. */ | |
| 2052 ret = regnode(EXACTLY); | |
| 2053 regc(NL); | |
| 2054 regc(NUL); | |
| 2055 *flagp |= HASWIDTH | SIMPLE; | |
| 2056 } | |
| 2057 else | |
| 2058 { | |
| 2059 /* In buffer text "\n" matches the end of a line. */ | |
| 2060 ret = regnode(NEWL); | |
| 2061 *flagp |= HASWIDTH | HASNL; | |
| 2062 } | |
| 2063 break; | |
| 2064 | |
| 2065 case Magic('('): | |
| 2066 if (one_exactly) | |
| 2067 EMSG_ONE_RET_NULL; | |
| 2068 ret = reg(REG_PAREN, &flags); | |
| 2069 if (ret == NULL) | |
| 2070 return NULL; | |
| 2071 *flagp |= flags & (HASWIDTH | SPSTART | HASNL | HASLOOKBH); | |
| 2072 break; | |
| 2073 | |
| 2074 case NUL: | |
| 2075 case Magic('|'): | |
| 2076 case Magic('&'): | |
| 2077 case Magic(')'): | |
| 1468 | 2078 if (one_exactly) |
| 2079 EMSG_ONE_RET_NULL; | |
|
10359
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commit https://github.com/vim/vim/commit/95f096030ed1a8afea028f2ea295d6f6a70f466f
Christian Brabandt <cb@256bit.org>
parents:
10245
diff
changeset
|
2080 IEMSG_RET_NULL(_(e_internal)); /* Supposed to be caught earlier. */ |
| 7 | 2081 /* NOTREACHED */ |
| 2082 | |
| 2083 case Magic('='): | |
| 2084 case Magic('?'): | |
| 2085 case Magic('+'): | |
| 2086 case Magic('@'): | |
| 2087 case Magic('{'): | |
| 2088 case Magic('*'): | |
| 2089 c = no_Magic(c); | |
| 2090 sprintf((char *)IObuff, _("E64: %s%c follows nothing"), | |
| 2091 (c == '*' ? reg_magic >= MAGIC_ON : reg_magic == MAGIC_ALL) | |
| 2092 ? "" : "\\", c); | |
| 2093 EMSG_RET_NULL(IObuff); | |
| 2094 /* NOTREACHED */ | |
| 2095 | |
| 2096 case Magic('~'): /* previous substitute pattern */ | |
| 359 | 2097 if (reg_prev_sub != NULL) |
| 7 | 2098 { |
| 2099 char_u *lp; | |
| 2100 | |
| 2101 ret = regnode(EXACTLY); | |
| 2102 lp = reg_prev_sub; | |
| 2103 while (*lp != NUL) | |
| 2104 regc(*lp++); | |
| 2105 regc(NUL); | |
| 2106 if (*reg_prev_sub != NUL) | |
| 2107 { | |
| 2108 *flagp |= HASWIDTH; | |
| 2109 if ((lp - reg_prev_sub) == 1) | |
| 2110 *flagp |= SIMPLE; | |
| 2111 } | |
| 2112 } | |
| 2113 else | |
| 2114 EMSG_RET_NULL(_(e_nopresub)); | |
| 2115 break; | |
| 2116 | |
| 2117 case Magic('1'): | |
| 2118 case Magic('2'): | |
| 2119 case Magic('3'): | |
| 2120 case Magic('4'): | |
| 2121 case Magic('5'): | |
| 2122 case Magic('6'): | |
| 2123 case Magic('7'): | |
| 2124 case Magic('8'): | |
| 2125 case Magic('9'): | |
| 2126 { | |
| 2127 int refnum; | |
| 2128 | |
| 2129 refnum = c - Magic('0'); | |
|
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Christian Brabandt <cb@256bit.org>
parents:
11521
diff
changeset
|
2130 if (!seen_endbrace(refnum)) |
|
14b6b79d685b
patch 8.0.0645: no error for illegal back reference in NFA engine
Christian Brabandt <cb@256bit.org>
parents:
11521
diff
changeset
|
2131 return NULL; |
| 7 | 2132 ret = regnode(BACKREF + refnum); |
| 2133 } | |
| 2134 break; | |
| 2135 | |
| 2136 case Magic('z'): | |
| 2137 { | |
| 2138 c = no_Magic(getchr()); | |
| 2139 switch (c) | |
| 2140 { | |
| 741 | 2141 #ifdef FEAT_SYN_HL |
| 7 | 2142 case '(': if (reg_do_extmatch != REX_SET) |
|
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Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2143 EMSG_RET_NULL(_(e_z_not_allowed)); |
| 7 | 2144 if (one_exactly) |
| 2145 EMSG_ONE_RET_NULL; | |
| 2146 ret = reg(REG_ZPAREN, &flags); | |
| 2147 if (ret == NULL) | |
| 2148 return NULL; | |
| 2149 *flagp |= flags & (HASWIDTH|SPSTART|HASNL|HASLOOKBH); | |
| 2150 re_has_z = REX_SET; | |
| 2151 break; | |
| 2152 | |
| 2153 case '1': | |
| 2154 case '2': | |
| 2155 case '3': | |
| 2156 case '4': | |
| 2157 case '5': | |
| 2158 case '6': | |
| 2159 case '7': | |
| 2160 case '8': | |
| 2161 case '9': if (reg_do_extmatch != REX_USE) | |
|
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4682
diff
changeset
|
2162 EMSG_RET_NULL(_(e_z1_not_allowed)); |
| 7 | 2163 ret = regnode(ZREF + c - '0'); |
| 2164 re_has_z = REX_USE; | |
| 2165 break; | |
| 741 | 2166 #endif |
| 7 | 2167 |
| 2168 case 's': ret = regnode(MOPEN + 0); | |
| 6203 | 2169 if (re_mult_next("\\zs") == FAIL) |
| 2170 return NULL; | |
| 7 | 2171 break; |
| 2172 | |
| 2173 case 'e': ret = regnode(MCLOSE + 0); | |
| 6203 | 2174 if (re_mult_next("\\ze") == FAIL) |
| 2175 return NULL; | |
| 7 | 2176 break; |
| 2177 | |
| 2178 default: EMSG_RET_NULL(_("E68: Invalid character after \\z")); | |
| 2179 } | |
| 2180 } | |
| 2181 break; | |
| 2182 | |
| 2183 case Magic('%'): | |
| 2184 { | |
| 2185 c = no_Magic(getchr()); | |
| 2186 switch (c) | |
| 2187 { | |
| 2188 /* () without a back reference */ | |
| 2189 case '(': | |
| 2190 if (one_exactly) | |
| 2191 EMSG_ONE_RET_NULL; | |
| 2192 ret = reg(REG_NPAREN, &flags); | |
| 2193 if (ret == NULL) | |
| 2194 return NULL; | |
| 2195 *flagp |= flags & (HASWIDTH | SPSTART | HASNL | HASLOOKBH); | |
| 2196 break; | |
| 2197 | |
| 2198 /* Catch \%^ and \%$ regardless of where they appear in the | |
| 2199 * pattern -- regardless of whether or not it makes sense. */ | |
| 2200 case '^': | |
| 2201 ret = regnode(RE_BOF); | |
| 2202 break; | |
| 2203 | |
| 2204 case '$': | |
| 2205 ret = regnode(RE_EOF); | |
| 2206 break; | |
| 2207 | |
| 2208 case '#': | |
| 2209 ret = regnode(CURSOR); | |
| 2210 break; | |
| 2211 | |
| 639 | 2212 case 'V': |
| 2213 ret = regnode(RE_VISUAL); | |
| 2214 break; | |
| 2215 | |
| 5901 | 2216 case 'C': |
| 2217 ret = regnode(RE_COMPOSING); | |
| 2218 break; | |
| 2219 | |
| 7 | 2220 /* \%[abc]: Emit as a list of branches, all ending at the last |
| 2221 * branch which matches nothing. */ | |
| 2222 case '[': | |
| 2223 if (one_exactly) /* doesn't nest */ | |
| 2224 EMSG_ONE_RET_NULL; | |
| 2225 { | |
| 2226 char_u *lastbranch; | |
| 2227 char_u *lastnode = NULL; | |
| 2228 char_u *br; | |
| 2229 | |
| 2230 ret = NULL; | |
| 2231 while ((c = getchr()) != ']') | |
| 2232 { | |
| 2233 if (c == NUL) | |
|
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Bram Moolenaar <bram@vim.org>
parents:
4732
diff
changeset
|
2234 EMSG2_RET_NULL(_(e_missing_sb), |
| 7 | 2235 reg_magic == MAGIC_ALL); |
| 2236 br = regnode(BRANCH); | |
| 2237 if (ret == NULL) | |
| 2238 ret = br; | |
| 2239 else | |
| 2240 regtail(lastnode, br); | |
| 2241 | |
| 2242 ungetchr(); | |
| 2243 one_exactly = TRUE; | |
| 2244 lastnode = regatom(flagp); | |
| 2245 one_exactly = FALSE; | |
| 2246 if (lastnode == NULL) | |
| 2247 return NULL; | |
| 2248 } | |
| 2249 if (ret == NULL) | |
|
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parents:
4746
diff
changeset
|
2250 EMSG2_RET_NULL(_(e_empty_sb), |
| 7 | 2251 reg_magic == MAGIC_ALL); |
| 2252 lastbranch = regnode(BRANCH); | |
| 2253 br = regnode(NOTHING); | |
| 2254 if (ret != JUST_CALC_SIZE) | |
| 2255 { | |
| 2256 regtail(lastnode, br); | |
| 2257 regtail(lastbranch, br); | |
| 2258 /* connect all branches to the NOTHING | |
| 2259 * branch at the end */ | |
| 2260 for (br = ret; br != lastnode; ) | |
| 2261 { | |
| 2262 if (OP(br) == BRANCH) | |
| 2263 { | |
| 2264 regtail(br, lastbranch); | |
| 2265 br = OPERAND(br); | |
| 2266 } | |
| 2267 else | |
| 2268 br = regnext(br); | |
| 2269 } | |
| 2270 } | |
| 1701 | 2271 *flagp &= ~(HASWIDTH | SIMPLE); |
| 7 | 2272 break; |
| 2273 } | |
| 2274 | |
| 24 | 2275 case 'd': /* %d123 decimal */ |
| 2276 case 'o': /* %o123 octal */ | |
| 2277 case 'x': /* %xab hex 2 */ | |
| 2278 case 'u': /* %uabcd hex 4 */ | |
| 2279 case 'U': /* %U1234abcd hex 8 */ | |
| 2280 { | |
| 2281 int i; | |
| 2282 | |
| 2283 switch (c) | |
| 2284 { | |
| 2285 case 'd': i = getdecchrs(); break; | |
| 2286 case 'o': i = getoctchrs(); break; | |
| 2287 case 'x': i = gethexchrs(2); break; | |
| 2288 case 'u': i = gethexchrs(4); break; | |
| 2289 case 'U': i = gethexchrs(8); break; | |
| 2290 default: i = -1; break; | |
| 2291 } | |
| 2292 | |
| 2293 if (i < 0) | |
| 4444 | 2294 EMSG2_RET_NULL( |
| 24 | 2295 _("E678: Invalid character after %s%%[dxouU]"), |
| 2296 reg_magic == MAGIC_ALL); | |
| 714 | 2297 #ifdef FEAT_MBYTE |
| 2298 if (use_multibytecode(i)) | |
| 2299 ret = regnode(MULTIBYTECODE); | |
| 2300 else | |
| 2301 #endif | |
| 2302 ret = regnode(EXACTLY); | |
| 24 | 2303 if (i == 0) |
| 2304 regc(0x0a); | |
| 2305 else | |
| 2306 #ifdef FEAT_MBYTE | |
| 2307 regmbc(i); | |
| 2308 #else | |
| 2309 regc(i); | |
| 2310 #endif | |
| 2311 regc(NUL); | |
| 2312 *flagp |= HASWIDTH; | |
| 2313 break; | |
| 2314 } | |
| 2315 | |
| 7 | 2316 default: |
| 639 | 2317 if (VIM_ISDIGIT(c) || c == '<' || c == '>' |
| 2318 || c == '\'') | |
| 7 | 2319 { |
| 2320 long_u n = 0; | |
| 2321 int cmp; | |
| 2322 | |
| 2323 cmp = c; | |
| 2324 if (cmp == '<' || cmp == '>') | |
| 2325 c = getchr(); | |
| 2326 while (VIM_ISDIGIT(c)) | |
| 2327 { | |
| 2328 n = n * 10 + (c - '0'); | |
| 2329 c = getchr(); | |
| 2330 } | |
| 639 | 2331 if (c == '\'' && n == 0) |
| 2332 { | |
| 2333 /* "\%'m", "\%<'m" and "\%>'m": Mark */ | |
| 2334 c = getchr(); | |
| 2335 ret = regnode(RE_MARK); | |
| 2336 if (ret == JUST_CALC_SIZE) | |
| 2337 regsize += 2; | |
| 2338 else | |
| 2339 { | |
| 2340 *regcode++ = c; | |
| 2341 *regcode++ = cmp; | |
| 2342 } | |
| 2343 break; | |
| 2344 } | |
| 2345 else if (c == 'l' || c == 'c' || c == 'v') | |
| 7 | 2346 { |
| 2347 if (c == 'l') | |
|
8021
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Christian Brabandt <cb@256bit.org>
parents:
7833
diff
changeset
|
2348 { |
| 7 | 2349 ret = regnode(RE_LNUM); |
|
8021
b6b4f354df23
commit https://github.com/vim/vim/commit/7c29f387819b5817b003d2ba73e2b5cf3cb3d0dd
Christian Brabandt <cb@256bit.org>
parents:
7833
diff
changeset
|
2350 if (save_prev_at_start) |
|
b6b4f354df23
commit https://github.com/vim/vim/commit/7c29f387819b5817b003d2ba73e2b5cf3cb3d0dd
Christian Brabandt <cb@256bit.org>
parents:
7833
diff
changeset
|
2351 at_start = TRUE; |
|
b6b4f354df23
commit https://github.com/vim/vim/commit/7c29f387819b5817b003d2ba73e2b5cf3cb3d0dd
Christian Brabandt <cb@256bit.org>
parents:
7833
diff
changeset
|
2352 } |
| 7 | 2353 else if (c == 'c') |
| 2354 ret = regnode(RE_COL); | |
| 2355 else | |
| 2356 ret = regnode(RE_VCOL); | |
| 2357 if (ret == JUST_CALC_SIZE) | |
| 2358 regsize += 5; | |
| 2359 else | |
| 2360 { | |
| 2361 /* put the number and the optional | |
| 2362 * comparator after the opcode */ | |
| 2363 regcode = re_put_long(regcode, n); | |
| 2364 *regcode++ = cmp; | |
| 2365 } | |
| 2366 break; | |
| 2367 } | |
| 2368 } | |
| 2369 | |
| 4444 | 2370 EMSG2_RET_NULL(_("E71: Invalid character after %s%%"), |
| 7 | 2371 reg_magic == MAGIC_ALL); |
| 2372 } | |
| 2373 } | |
| 2374 break; | |
| 2375 | |
| 2376 case Magic('['): | |
| 2377 collection: | |
| 2378 { | |
| 2379 char_u *lp; | |
| 2380 | |
| 2381 /* | |
| 2382 * If there is no matching ']', we assume the '[' is a normal | |
| 2383 * character. This makes 'incsearch' and ":help [" work. | |
| 2384 */ | |
| 2385 lp = skip_anyof(regparse); | |
| 2386 if (*lp == ']') /* there is a matching ']' */ | |
| 2387 { | |
| 2388 int startc = -1; /* > 0 when next '-' is a range */ | |
| 2389 int endc; | |
| 2390 | |
| 2391 /* | |
| 2392 * In a character class, different parsing rules apply. | |
| 2393 * Not even \ is special anymore, nothing is. | |
| 2394 */ | |
| 2395 if (*regparse == '^') /* Complement of range. */ | |
| 2396 { | |
| 2397 ret = regnode(ANYBUT + extra); | |
| 2398 regparse++; | |
| 2399 } | |
| 2400 else | |
| 2401 ret = regnode(ANYOF + extra); | |
| 2402 | |
| 2403 /* At the start ']' and '-' mean the literal character. */ | |
| 2404 if (*regparse == ']' || *regparse == '-') | |
| 167 | 2405 { |
| 2406 startc = *regparse; | |
| 7 | 2407 regc(*regparse++); |
| 167 | 2408 } |
| 7 | 2409 |
| 2410 while (*regparse != NUL && *regparse != ']') | |
| 2411 { | |
| 2412 if (*regparse == '-') | |
| 2413 { | |
| 2414 ++regparse; | |
| 2415 /* The '-' is not used for a range at the end and | |
| 2416 * after or before a '\n'. */ | |
| 2417 if (*regparse == ']' || *regparse == NUL | |
| 2418 || startc == -1 | |
| 2419 || (regparse[0] == '\\' && regparse[1] == 'n')) | |
| 2420 { | |
| 2421 regc('-'); | |
| 2422 startc = '-'; /* [--x] is a range */ | |
| 2423 } | |
| 2424 else | |
| 2425 { | |
| 167 | 2426 /* Also accept "a-[.z.]" */ |
| 2427 endc = 0; | |
| 2428 if (*regparse == '[') | |
| 2429 endc = get_coll_element(®parse); | |
| 2430 if (endc == 0) | |
| 2431 { | |
| 7 | 2432 #ifdef FEAT_MBYTE |
| 167 | 2433 if (has_mbyte) |
| 2434 endc = mb_ptr2char_adv(®parse); | |
| 2435 else | |
| 7 | 2436 #endif |
| 167 | 2437 endc = *regparse++; |
| 2438 } | |
| 24 | 2439 |
| 2440 /* Handle \o40, \x20 and \u20AC style sequences */ | |
|
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Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
2441 if (endc == '\\' && !reg_cpo_lit && !reg_cpo_bsl) |
| 24 | 2442 endc = coll_get_char(); |
| 2443 | |
| 7 | 2444 if (startc > endc) |
|
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parents:
11269
diff
changeset
|
2445 EMSG_RET_NULL(_(e_reverse_range)); |
| 7 | 2446 #ifdef FEAT_MBYTE |
| 2447 if (has_mbyte && ((*mb_char2len)(startc) > 1 | |
| 2448 || (*mb_char2len)(endc) > 1)) | |
| 2449 { | |
|
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parents:
11269
diff
changeset
|
2450 /* Limit to a range of 256 chars. */ |
| 7 | 2451 if (endc > startc + 256) |
|
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Christian Brabandt <cb@256bit.org>
parents:
11269
diff
changeset
|
2452 EMSG_RET_NULL(_(e_large_class)); |
| 7 | 2453 while (++startc <= endc) |
| 2454 regmbc(startc); | |
| 2455 } | |
| 2456 else | |
| 2457 #endif | |
| 2458 { | |
| 2459 #ifdef EBCDIC | |
| 2460 int alpha_only = FALSE; | |
| 2461 | |
| 2462 /* for alphabetical range skip the gaps | |
| 2463 * 'i'-'j', 'r'-'s', 'I'-'J' and 'R'-'S'. */ | |
| 2464 if (isalpha(startc) && isalpha(endc)) | |
| 2465 alpha_only = TRUE; | |
| 2466 #endif | |
| 2467 while (++startc <= endc) | |
| 2468 #ifdef EBCDIC | |
| 2469 if (!alpha_only || isalpha(startc)) | |
| 2470 #endif | |
| 2471 regc(startc); | |
| 2472 } | |
| 2473 startc = -1; | |
| 2474 } | |
| 2475 } | |
| 2476 /* | |
| 2477 * Only "\]", "\^", "\]" and "\\" are special in Vi. Vim | |
| 2478 * accepts "\t", "\e", etc., but only when the 'l' flag in | |
| 2479 * 'cpoptions' is not included. | |
| 167 | 2480 * Posix doesn't recognize backslash at all. |
| 7 | 2481 */ |
| 2482 else if (*regparse == '\\' | |
|
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Bram Moolenaar <bram@vim.org>
parents:
4732
diff
changeset
|
2483 && !reg_cpo_bsl |
| 7 | 2484 && (vim_strchr(REGEXP_INRANGE, regparse[1]) != NULL |
|
4744
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Bram Moolenaar <bram@vim.org>
parents:
4732
diff
changeset
|
2485 || (!reg_cpo_lit |
| 7 | 2486 && vim_strchr(REGEXP_ABBR, |
| 2487 regparse[1]) != NULL))) | |
| 2488 { | |
| 2489 regparse++; | |
| 2490 if (*regparse == 'n') | |
| 2491 { | |
| 2492 /* '\n' in range: also match NL */ | |
| 2493 if (ret != JUST_CALC_SIZE) | |
| 2494 { | |
| 4084 | 2495 /* Using \n inside [^] does not change what |
| 2496 * matches. "[^\n]" is the same as ".". */ | |
| 2497 if (*ret == ANYOF) | |
| 2498 { | |
| 7 | 2499 *ret = ANYOF + ADD_NL; |
| 4084 | 2500 *flagp |= HASNL; |
| 2501 } | |
| 7 | 2502 /* else: must have had a \n already */ |
| 2503 } | |
| 2504 regparse++; | |
| 2505 startc = -1; | |
| 2506 } | |
| 24 | 2507 else if (*regparse == 'd' |
| 2508 || *regparse == 'o' | |
| 2509 || *regparse == 'x' | |
| 2510 || *regparse == 'u' | |
| 2511 || *regparse == 'U') | |
| 2512 { | |
| 2513 startc = coll_get_char(); | |
| 2514 if (startc == 0) | |
| 2515 regc(0x0a); | |
| 2516 else | |
| 2517 #ifdef FEAT_MBYTE | |
| 2518 regmbc(startc); | |
| 2519 #else | |
| 2520 regc(startc); | |
| 2521 #endif | |
| 2522 } | |
| 7 | 2523 else |
| 2524 { | |
| 2525 startc = backslash_trans(*regparse++); | |
| 2526 regc(startc); | |
| 2527 } | |
| 2528 } | |
| 2529 else if (*regparse == '[') | |
| 2530 { | |
| 2531 int c_class; | |
| 2532 int cu; | |
| 2533 | |
| 167 | 2534 c_class = get_char_class(®parse); |
| 7 | 2535 startc = -1; |
| 2536 /* Characters assumed to be 8 bits! */ | |
| 2537 switch (c_class) | |
| 2538 { | |
| 2539 case CLASS_NONE: | |
| 167 | 2540 c_class = get_equi_class(®parse); |
| 2541 if (c_class != 0) | |
| 2542 { | |
| 2543 /* produce equivalence class */ | |
| 2544 reg_equi_class(c_class); | |
| 2545 } | |
| 2546 else if ((c_class = | |
| 2547 get_coll_element(®parse)) != 0) | |
| 2548 { | |
| 2549 /* produce a collating element */ | |
| 2550 regmbc(c_class); | |
| 2551 } | |
| 2552 else | |
| 2553 { | |
| 2554 /* literal '[', allow [[-x] as a range */ | |
| 2555 startc = *regparse++; | |
| 2556 regc(startc); | |
| 2557 } | |
| 7 | 2558 break; |
| 2559 case CLASS_ALNUM: | |
|
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Christian Brabandt <cb@256bit.org>
parents:
8995
diff
changeset
|
2560 for (cu = 1; cu < 128; cu++) |
| 7 | 2561 if (isalnum(cu)) |
|
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parents:
8863
diff
changeset
|
2562 regmbc(cu); |
| 7 | 2563 break; |
| 2564 case CLASS_ALPHA: | |
|
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parents:
8995
diff
changeset
|
2565 for (cu = 1; cu < 128; cu++) |
| 7 | 2566 if (isalpha(cu)) |
|
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parents:
8863
diff
changeset
|
2567 regmbc(cu); |
| 7 | 2568 break; |
| 2569 case CLASS_BLANK: | |
| 2570 regc(' '); | |
| 2571 regc('\t'); | |
| 2572 break; | |
| 2573 case CLASS_CNTRL: | |
|
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diff
changeset
|
2574 for (cu = 1; cu <= 127; cu++) |
| 7 | 2575 if (iscntrl(cu)) |
|
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parents:
8863
diff
changeset
|
2576 regmbc(cu); |
| 7 | 2577 break; |
| 2578 case CLASS_DIGIT: | |
|
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diff
changeset
|
2579 for (cu = 1; cu <= 127; cu++) |
| 7 | 2580 if (VIM_ISDIGIT(cu)) |
|
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diff
changeset
|
2581 regmbc(cu); |
| 7 | 2582 break; |
| 2583 case CLASS_GRAPH: | |
|
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diff
changeset
|
2584 for (cu = 1; cu <= 127; cu++) |
| 7 | 2585 if (isgraph(cu)) |
|
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parents:
8863
diff
changeset
|
2586 regmbc(cu); |
| 7 | 2587 break; |
| 2588 case CLASS_LOWER: | |
| 2589 for (cu = 1; cu <= 255; cu++) | |
|
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diff
changeset
|
2590 if (MB_ISLOWER(cu) && cu != 170 |
|
42b228c8701b
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diff
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|
2591 && cu != 186) |
|
8995
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parents:
8863
diff
changeset
|
2592 regmbc(cu); |
| 7 | 2593 break; |
| 2594 case CLASS_PRINT: | |
| 2595 for (cu = 1; cu <= 255; cu++) | |
| 2596 if (vim_isprintc(cu)) | |
|
8995
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8863
diff
changeset
|
2597 regmbc(cu); |
| 7 | 2598 break; |
| 2599 case CLASS_PUNCT: | |
|
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parents:
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diff
changeset
|
2600 for (cu = 1; cu < 128; cu++) |
| 7 | 2601 if (ispunct(cu)) |
|
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parents:
8863
diff
changeset
|
2602 regmbc(cu); |
| 7 | 2603 break; |
| 2604 case CLASS_SPACE: | |
| 2605 for (cu = 9; cu <= 13; cu++) | |
| 2606 regc(cu); | |
| 2607 regc(' '); | |
| 2608 break; | |
| 2609 case CLASS_UPPER: | |
| 2610 for (cu = 1; cu <= 255; cu++) | |
| 1347 | 2611 if (MB_ISUPPER(cu)) |
|
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parents:
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diff
changeset
|
2612 regmbc(cu); |
| 7 | 2613 break; |
| 2614 case CLASS_XDIGIT: | |
| 2615 for (cu = 1; cu <= 255; cu++) | |
| 2616 if (vim_isxdigit(cu)) | |
|
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parents:
8863
diff
changeset
|
2617 regmbc(cu); |
| 7 | 2618 break; |
| 2619 case CLASS_TAB: | |
| 2620 regc('\t'); | |
| 2621 break; | |
| 2622 case CLASS_RETURN: | |
| 2623 regc('\r'); | |
| 2624 break; | |
| 2625 case CLASS_BACKSPACE: | |
| 2626 regc('\b'); | |
| 2627 break; | |
| 2628 case CLASS_ESCAPE: | |
| 2629 regc('\033'); | |
| 2630 break; | |
| 2631 } | |
| 2632 } | |
| 2633 else | |
| 2634 { | |
| 2635 #ifdef FEAT_MBYTE | |
| 2636 if (has_mbyte) | |
| 2637 { | |
| 2638 int len; | |
| 2639 | |
| 2640 /* produce a multibyte character, including any | |
| 2641 * following composing characters */ | |
| 2642 startc = mb_ptr2char(regparse); | |
| 474 | 2643 len = (*mb_ptr2len)(regparse); |
| 7 | 2644 if (enc_utf8 && utf_char2len(startc) != len) |
| 2645 startc = -1; /* composing chars */ | |
| 2646 while (--len >= 0) | |
| 2647 regc(*regparse++); | |
| 2648 } | |
| 2649 else | |
| 2650 #endif | |
| 2651 { | |
| 2652 startc = *regparse++; | |
| 2653 regc(startc); | |
| 2654 } | |
| 2655 } | |
| 2656 } | |
| 2657 regc(NUL); | |
| 2658 prevchr_len = 1; /* last char was the ']' */ | |
| 2659 if (*regparse != ']') | |
| 2660 EMSG_RET_NULL(_(e_toomsbra)); /* Cannot happen? */ | |
| 2661 skipchr(); /* let's be friends with the lexer again */ | |
| 2662 *flagp |= HASWIDTH | SIMPLE; | |
| 2663 break; | |
| 2664 } | |
| 481 | 2665 else if (reg_strict) |
| 4444 | 2666 EMSG2_RET_NULL(_(e_missingbracket), reg_magic > MAGIC_OFF); |
| 7 | 2667 } |
| 2668 /* FALLTHROUGH */ | |
| 2669 | |
| 2670 default: | |
| 2671 { | |
| 2672 int len; | |
| 2673 | |
| 2674 #ifdef FEAT_MBYTE | |
| 2675 /* A multi-byte character is handled as a separate atom if it's | |
| 714 | 2676 * before a multi and when it's a composing char. */ |
| 2677 if (use_multibytecode(c)) | |
| 7 | 2678 { |
| 714 | 2679 do_multibyte: |
| 7 | 2680 ret = regnode(MULTIBYTECODE); |
| 2681 regmbc(c); | |
| 2682 *flagp |= HASWIDTH | SIMPLE; | |
| 2683 break; | |
| 2684 } | |
| 2685 #endif | |
| 2686 | |
| 2687 ret = regnode(EXACTLY); | |
| 2688 | |
| 2689 /* | |
| 2690 * Append characters as long as: | |
| 2691 * - there is no following multi, we then need the character in | |
| 2692 * front of it as a single character operand | |
| 2693 * - not running into a Magic character | |
| 2694 * - "one_exactly" is not set | |
| 2695 * But always emit at least one character. Might be a Multi, | |
| 2696 * e.g., a "[" without matching "]". | |
| 2697 */ | |
| 2698 for (len = 0; c != NUL && (len == 0 | |
| 2699 || (re_multi_type(peekchr()) == NOT_MULTI | |
| 2700 && !one_exactly | |
| 2701 && !is_Magic(c))); ++len) | |
| 2702 { | |
| 2703 c = no_Magic(c); | |
| 2704 #ifdef FEAT_MBYTE | |
| 2705 if (has_mbyte) | |
| 2706 { | |
| 2707 regmbc(c); | |
| 2708 if (enc_utf8) | |
| 2709 { | |
| 2710 int l; | |
| 2711 | |
| 714 | 2712 /* Need to get composing character too. */ |
| 7 | 2713 for (;;) |
| 2714 { | |
| 714 | 2715 l = utf_ptr2len(regparse); |
| 2716 if (!UTF_COMPOSINGLIKE(regparse, regparse + l)) | |
| 7 | 2717 break; |
| 714 | 2718 regmbc(utf_ptr2char(regparse)); |
| 2719 skipchr(); | |
| 7 | 2720 } |
| 2721 } | |
| 2722 } | |
| 2723 else | |
| 2724 #endif | |
| 2725 regc(c); | |
| 2726 c = getchr(); | |
| 2727 } | |
| 2728 ungetchr(); | |
| 2729 | |
| 2730 regc(NUL); | |
| 2731 *flagp |= HASWIDTH; | |
| 2732 if (len == 1) | |
| 2733 *flagp |= SIMPLE; | |
| 2734 } | |
| 2735 break; | |
| 2736 } | |
| 2737 | |
| 2738 return ret; | |
| 2739 } | |
| 2740 | |
| 714 | 2741 #ifdef FEAT_MBYTE |
| 2742 /* | |
| 2743 * Return TRUE if MULTIBYTECODE should be used instead of EXACTLY for | |
| 2744 * character "c". | |
| 2745 */ | |
| 2746 static int | |
|
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parents:
7807
diff
changeset
|
2747 use_multibytecode(int c) |
| 714 | 2748 { |
| 2749 return has_mbyte && (*mb_char2len)(c) > 1 | |
| 2750 && (re_multi_type(peekchr()) != NOT_MULTI | |
| 2751 || (enc_utf8 && utf_iscomposing(c))); | |
| 2752 } | |
| 2753 #endif | |
| 2754 | |
| 7 | 2755 /* |
| 4444 | 2756 * Emit a node. |
| 7 | 2757 * Return pointer to generated code. |
| 2758 */ | |
| 2759 static char_u * | |
|
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7807
diff
changeset
|
2760 regnode(int op) |
| 7 | 2761 { |
| 2762 char_u *ret; | |
| 2763 | |
| 2764 ret = regcode; | |
| 2765 if (ret == JUST_CALC_SIZE) | |
| 2766 regsize += 3; | |
| 2767 else | |
| 2768 { | |
| 2769 *regcode++ = op; | |
| 2770 *regcode++ = NUL; /* Null "next" pointer. */ | |
| 2771 *regcode++ = NUL; | |
| 2772 } | |
| 2773 return ret; | |
| 2774 } | |
| 2775 | |
| 2776 /* | |
| 2777 * Emit (if appropriate) a byte of code | |
| 2778 */ | |
| 2779 static void | |
|
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diff
changeset
|
2780 regc(int b) |
| 7 | 2781 { |
| 2782 if (regcode == JUST_CALC_SIZE) | |
| 2783 regsize++; | |
| 2784 else | |
| 2785 *regcode++ = b; | |
| 2786 } | |
| 2787 | |
| 2788 #ifdef FEAT_MBYTE | |
| 2789 /* | |
| 2790 * Emit (if appropriate) a multi-byte character of code | |
| 2791 */ | |
| 2792 static void | |
|
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7807
diff
changeset
|
2793 regmbc(int c) |
| 7 | 2794 { |
| 2974 | 2795 if (!has_mbyte && c > 0xff) |
| 2796 return; | |
| 7 | 2797 if (regcode == JUST_CALC_SIZE) |
| 2798 regsize += (*mb_char2len)(c); | |
| 2799 else | |
| 2800 regcode += (*mb_char2bytes)(c, regcode); | |
| 2801 } | |
| 2802 #endif | |
| 2803 | |
| 2804 /* | |
| 4444 | 2805 * Insert an operator in front of already-emitted operand |
| 7 | 2806 * |
| 2807 * Means relocating the operand. | |
| 2808 */ | |
| 2809 static void | |
|
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diff
changeset
|
2810 reginsert(int op, char_u *opnd) |
| 7 | 2811 { |
| 2812 char_u *src; | |
| 2813 char_u *dst; | |
| 2814 char_u *place; | |
| 2815 | |
| 2816 if (regcode == JUST_CALC_SIZE) | |
| 2817 { | |
| 2818 regsize += 3; | |
| 2819 return; | |
| 2820 } | |
| 2821 src = regcode; | |
| 2822 regcode += 3; | |
| 2823 dst = regcode; | |
| 2824 while (src > opnd) | |
| 2825 *--dst = *--src; | |
| 2826 | |
| 2827 place = opnd; /* Op node, where operand used to be. */ | |
| 2828 *place++ = op; | |
| 2829 *place++ = NUL; | |
| 2830 *place = NUL; | |
| 2831 } | |
| 2832 | |
| 2833 /* | |
| 4444 | 2834 * Insert an operator in front of already-emitted operand. |
|
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|
2835 * Add a number to the operator. |
|
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|
2836 */ |
|
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|
2837 static void |
|
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diff
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|
2838 reginsert_nr(int op, long val, char_u *opnd) |
|
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2839 { |
|
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|
2840 char_u *src; |
|
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|
2841 char_u *dst; |
|
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|
2842 char_u *place; |
|
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|
2843 |
|
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|
2844 if (regcode == JUST_CALC_SIZE) |
|
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|
2845 { |
|
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|
2846 regsize += 7; |
|
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|
2847 return; |
|
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|
2848 } |
|
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2849 src = regcode; |
|
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2850 regcode += 7; |
|
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|
2851 dst = regcode; |
|
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|
2852 while (src > opnd) |
|
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|
2853 *--dst = *--src; |
|
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2854 |
|
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|
2855 place = opnd; /* Op node, where operand used to be. */ |
|
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|
2856 *place++ = op; |
|
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|
2857 *place++ = NUL; |
|
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|
2858 *place++ = NUL; |
|
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|
2859 place = re_put_long(place, (long_u)val); |
|
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|
2860 } |
|
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|
2861 |
|
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2862 /* |
|
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2863 * Insert an operator in front of already-emitted operand. |
| 7 | 2864 * The operator has the given limit values as operands. Also set next pointer. |
| 2865 * | |
| 2866 * Means relocating the operand. | |
| 2867 */ | |
| 2868 static void | |
|
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2869 reginsert_limits( |
|
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|
2870 int op, |
|
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|
2871 long minval, |
|
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|
2872 long maxval, |
|
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|
2873 char_u *opnd) |
| 7 | 2874 { |
| 2875 char_u *src; | |
| 2876 char_u *dst; | |
| 2877 char_u *place; | |
| 2878 | |
| 2879 if (regcode == JUST_CALC_SIZE) | |
| 2880 { | |
| 2881 regsize += 11; | |
| 2882 return; | |
| 2883 } | |
| 2884 src = regcode; | |
| 2885 regcode += 11; | |
| 2886 dst = regcode; | |
| 2887 while (src > opnd) | |
| 2888 *--dst = *--src; | |
| 2889 | |
| 2890 place = opnd; /* Op node, where operand used to be. */ | |
| 2891 *place++ = op; | |
| 2892 *place++ = NUL; | |
| 2893 *place++ = NUL; | |
| 2894 place = re_put_long(place, (long_u)minval); | |
| 2895 place = re_put_long(place, (long_u)maxval); | |
| 2896 regtail(opnd, place); | |
| 2897 } | |
| 2898 | |
| 2899 /* | |
| 2900 * Write a long as four bytes at "p" and return pointer to the next char. | |
| 2901 */ | |
| 2902 static char_u * | |
|
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2903 re_put_long(char_u *p, long_u val) |
| 7 | 2904 { |
| 2905 *p++ = (char_u) ((val >> 24) & 0377); | |
| 2906 *p++ = (char_u) ((val >> 16) & 0377); | |
| 2907 *p++ = (char_u) ((val >> 8) & 0377); | |
| 2908 *p++ = (char_u) (val & 0377); | |
| 2909 return p; | |
| 2910 } | |
| 2911 | |
| 2912 /* | |
| 4444 | 2913 * Set the next-pointer at the end of a node chain. |
| 7 | 2914 */ |
| 2915 static void | |
|
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changeset
|
2916 regtail(char_u *p, char_u *val) |
| 7 | 2917 { |
| 2918 char_u *scan; | |
| 2919 char_u *temp; | |
| 2920 int offset; | |
| 2921 | |
| 2922 if (p == JUST_CALC_SIZE) | |
| 2923 return; | |
| 2924 | |
| 2925 /* Find last node. */ | |
| 2926 scan = p; | |
| 2927 for (;;) | |
| 2928 { | |
| 2929 temp = regnext(scan); | |
| 2930 if (temp == NULL) | |
| 2931 break; | |
| 2932 scan = temp; | |
| 2933 } | |
| 2934 | |
| 233 | 2935 if (OP(scan) == BACK) |
| 7 | 2936 offset = (int)(scan - val); |
| 2937 else | |
| 2938 offset = (int)(val - scan); | |
| 2010 | 2939 /* When the offset uses more than 16 bits it can no longer fit in the two |
| 2974 | 2940 * bytes available. Use a global flag to avoid having to check return |
| 2010 | 2941 * values in too many places. */ |
| 2942 if (offset > 0xffff) | |
| 2943 reg_toolong = TRUE; | |
| 2944 else | |
| 2945 { | |
| 2946 *(scan + 1) = (char_u) (((unsigned)offset >> 8) & 0377); | |
| 2947 *(scan + 2) = (char_u) (offset & 0377); | |
| 2948 } | |
| 7 | 2949 } |
| 2950 | |
| 2951 /* | |
| 4444 | 2952 * Like regtail, on item after a BRANCH; nop if none. |
| 7 | 2953 */ |
| 2954 static void | |
|
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|
2955 regoptail(char_u *p, char_u *val) |
| 7 | 2956 { |
| 2957 /* When op is neither BRANCH nor BRACE_COMPLEX0-9, it is "operandless" */ | |
| 2958 if (p == NULL || p == JUST_CALC_SIZE | |
| 2959 || (OP(p) != BRANCH | |
| 2960 && (OP(p) < BRACE_COMPLEX || OP(p) > BRACE_COMPLEX + 9))) | |
| 2961 return; | |
| 2962 regtail(OPERAND(p), val); | |
| 2963 } | |
| 2964 | |
| 2965 /* | |
| 4444 | 2966 * Functions for getting characters from the regexp input. |
| 7 | 2967 */ |
| 4444 | 2968 /* |
| 2969 * Start parsing at "str". | |
| 2970 */ | |
| 7 | 2971 static void |
|
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|
2972 initchr(char_u *str) |
| 7 | 2973 { |
| 2974 regparse = str; | |
| 2975 prevchr_len = 0; | |
| 2976 curchr = prevprevchr = prevchr = nextchr = -1; | |
| 2977 at_start = TRUE; | |
| 2978 prev_at_start = FALSE; | |
| 2979 } | |
| 2980 | |
| 4444 | 2981 /* |
|
4679
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2982 * Save the current parse state, so that it can be restored and parsing |
|
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2983 * starts in the same state again. |
|
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2984 */ |
|
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2985 static void |
|
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2986 save_parse_state(parse_state_T *ps) |
|
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2987 { |
|
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2988 ps->regparse = regparse; |
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2989 ps->prevchr_len = prevchr_len; |
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2990 ps->curchr = curchr; |
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2991 ps->prevchr = prevchr; |
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2992 ps->prevprevchr = prevprevchr; |
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2993 ps->nextchr = nextchr; |
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2994 ps->at_start = at_start; |
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2995 ps->prev_at_start = prev_at_start; |
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2996 ps->regnpar = regnpar; |
|
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2997 } |
|
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2998 |
|
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2999 /* |
|
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3000 * Restore a previously saved parse state. |
|
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3001 */ |
|
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3002 static void |
|
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|
3003 restore_parse_state(parse_state_T *ps) |
|
4679
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3004 { |
|
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|
3005 regparse = ps->regparse; |
|
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|
3006 prevchr_len = ps->prevchr_len; |
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|
3007 curchr = ps->curchr; |
|
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|
3008 prevchr = ps->prevchr; |
|
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|
3009 prevprevchr = ps->prevprevchr; |
|
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|
3010 nextchr = ps->nextchr; |
|
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|
3011 at_start = ps->at_start; |
|
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|
3012 prev_at_start = ps->prev_at_start; |
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|
3013 regnpar = ps->regnpar; |
|
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|
3014 } |
|
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|
3015 |
|
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3016 |
|
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|
3017 /* |
| 4444 | 3018 * Get the next character without advancing. |
| 3019 */ | |
| 7 | 3020 static int |
|
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diff
changeset
|
3021 peekchr(void) |
| 7 | 3022 { |
| 167 | 3023 static int after_slash = FALSE; |
| 3024 | |
| 7 | 3025 if (curchr == -1) |
| 3026 { | |
| 3027 switch (curchr = regparse[0]) | |
| 3028 { | |
| 3029 case '.': | |
| 3030 case '[': | |
| 3031 case '~': | |
| 3032 /* magic when 'magic' is on */ | |
| 3033 if (reg_magic >= MAGIC_ON) | |
| 3034 curchr = Magic(curchr); | |
| 3035 break; | |
| 3036 case '(': | |
| 3037 case ')': | |
| 3038 case '{': | |
| 3039 case '%': | |
| 3040 case '+': | |
| 3041 case '=': | |
| 3042 case '?': | |
| 3043 case '@': | |
| 3044 case '!': | |
| 3045 case '&': | |
| 3046 case '|': | |
| 3047 case '<': | |
| 3048 case '>': | |
| 3049 case '#': /* future ext. */ | |
| 3050 case '"': /* future ext. */ | |
| 3051 case '\'': /* future ext. */ | |
| 3052 case ',': /* future ext. */ | |
| 3053 case '-': /* future ext. */ | |
| 3054 case ':': /* future ext. */ | |
| 3055 case ';': /* future ext. */ | |
| 3056 case '`': /* future ext. */ | |
| 3057 case '/': /* Can't be used in / command */ | |
| 3058 /* magic only after "\v" */ | |
| 3059 if (reg_magic == MAGIC_ALL) | |
| 3060 curchr = Magic(curchr); | |
| 3061 break; | |
| 3062 case '*': | |
| 167 | 3063 /* * is not magic as the very first character, eg "?*ptr", when |
| 3064 * after '^', eg "/^*ptr" and when after "\(", "\|", "\&". But | |
| 3065 * "\(\*" is not magic, thus must be magic if "after_slash" */ | |
| 3066 if (reg_magic >= MAGIC_ON | |
| 3067 && !at_start | |
| 3068 && !(prev_at_start && prevchr == Magic('^')) | |
| 3069 && (after_slash | |
| 3070 || (prevchr != Magic('(') | |
| 3071 && prevchr != Magic('&') | |
| 3072 && prevchr != Magic('|')))) | |
| 7 | 3073 curchr = Magic('*'); |
| 3074 break; | |
| 3075 case '^': | |
| 3076 /* '^' is only magic as the very first character and if it's after | |
| 3077 * "\(", "\|", "\&' or "\n" */ | |
| 3078 if (reg_magic >= MAGIC_OFF | |
| 3079 && (at_start | |
| 3080 || reg_magic == MAGIC_ALL | |
| 3081 || prevchr == Magic('(') | |
| 3082 || prevchr == Magic('|') | |
| 3083 || prevchr == Magic('&') | |
| 3084 || prevchr == Magic('n') | |
| 3085 || (no_Magic(prevchr) == '(' | |
| 3086 && prevprevchr == Magic('%')))) | |
| 3087 { | |
| 3088 curchr = Magic('^'); | |
| 3089 at_start = TRUE; | |
| 3090 prev_at_start = FALSE; | |
| 3091 } | |
| 3092 break; | |
| 3093 case '$': | |
| 3094 /* '$' is only magic as the very last char and if it's in front of | |
| 3095 * either "\|", "\)", "\&", or "\n" */ | |
| 3096 if (reg_magic >= MAGIC_OFF) | |
| 3097 { | |
| 3098 char_u *p = regparse + 1; | |
| 6041 | 3099 int is_magic_all = (reg_magic == MAGIC_ALL); |
| 3100 | |
| 3101 /* ignore \c \C \m \M \v \V and \Z after '$' */ | |
| 7 | 3102 while (p[0] == '\\' && (p[1] == 'c' || p[1] == 'C' |
| 6041 | 3103 || p[1] == 'm' || p[1] == 'M' |
| 3104 || p[1] == 'v' || p[1] == 'V' || p[1] == 'Z')) | |
| 3105 { | |
| 3106 if (p[1] == 'v') | |
| 3107 is_magic_all = TRUE; | |
| 3108 else if (p[1] == 'm' || p[1] == 'M' || p[1] == 'V') | |
| 3109 is_magic_all = FALSE; | |
| 7 | 3110 p += 2; |
| 6041 | 3111 } |
| 7 | 3112 if (p[0] == NUL |
| 3113 || (p[0] == '\\' | |
| 3114 && (p[1] == '|' || p[1] == '&' || p[1] == ')' | |
| 3115 || p[1] == 'n')) | |
| 6041 | 3116 || (is_magic_all |
| 3117 && (p[0] == '|' || p[0] == '&' || p[0] == ')')) | |
| 7 | 3118 || reg_magic == MAGIC_ALL) |
| 3119 curchr = Magic('$'); | |
| 3120 } | |
| 3121 break; | |
| 3122 case '\\': | |
| 3123 { | |
| 3124 int c = regparse[1]; | |
| 3125 | |
| 3126 if (c == NUL) | |
| 3127 curchr = '\\'; /* trailing '\' */ | |
| 3128 else if ( | |
| 3129 #ifdef EBCDIC | |
| 3130 vim_strchr(META, c) | |
| 3131 #else | |
| 3132 c <= '~' && META_flags[c] | |
| 3133 #endif | |
| 3134 ) | |
| 3135 { | |
| 3136 /* | |
| 3137 * META contains everything that may be magic sometimes, | |
| 3138 * except ^ and $ ("\^" and "\$" are only magic after | |
| 6830 | 3139 * "\V"). We now fetch the next character and toggle its |
| 7 | 3140 * magicness. Therefore, \ is so meta-magic that it is |
| 3141 * not in META. | |
| 3142 */ | |
| 3143 curchr = -1; | |
| 3144 prev_at_start = at_start; | |
| 3145 at_start = FALSE; /* be able to say "/\*ptr" */ | |
| 3146 ++regparse; | |
| 167 | 3147 ++after_slash; |
| 7 | 3148 peekchr(); |
| 3149 --regparse; | |
| 167 | 3150 --after_slash; |
| 7 | 3151 curchr = toggle_Magic(curchr); |
| 3152 } | |
| 3153 else if (vim_strchr(REGEXP_ABBR, c)) | |
| 3154 { | |
| 3155 /* | |
| 3156 * Handle abbreviations, like "\t" for TAB -- webb | |
| 3157 */ | |
| 3158 curchr = backslash_trans(c); | |
| 3159 } | |
| 3160 else if (reg_magic == MAGIC_NONE && (c == '$' || c == '^')) | |
| 3161 curchr = toggle_Magic(c); | |
| 3162 else | |
| 3163 { | |
| 3164 /* | |
| 3165 * Next character can never be (made) magic? | |
| 3166 * Then backslashing it won't do anything. | |
| 3167 */ | |
| 3168 #ifdef FEAT_MBYTE | |
| 3169 if (has_mbyte) | |
| 3170 curchr = (*mb_ptr2char)(regparse + 1); | |
| 3171 else | |
| 3172 #endif | |
| 3173 curchr = c; | |
| 3174 } | |
| 3175 break; | |
| 3176 } | |
| 3177 | |
| 3178 #ifdef FEAT_MBYTE | |
| 3179 default: | |
| 3180 if (has_mbyte) | |
| 3181 curchr = (*mb_ptr2char)(regparse); | |
| 3182 #endif | |
| 3183 } | |
| 3184 } | |
| 3185 | |
| 3186 return curchr; | |
| 3187 } | |
| 3188 | |
| 3189 /* | |
| 3190 * Eat one lexed character. Do this in a way that we can undo it. | |
| 3191 */ | |
| 3192 static void | |
|
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changeset
|
3193 skipchr(void) |
| 7 | 3194 { |
| 3195 /* peekchr() eats a backslash, do the same here */ | |
| 3196 if (*regparse == '\\') | |
| 3197 prevchr_len = 1; | |
| 3198 else | |
| 3199 prevchr_len = 0; | |
| 3200 if (regparse[prevchr_len] != NUL) | |
| 3201 { | |
| 3202 #ifdef FEAT_MBYTE | |
| 714 | 3203 if (enc_utf8) |
| 1449 | 3204 /* exclude composing chars that mb_ptr2len does include */ |
| 3205 prevchr_len += utf_ptr2len(regparse + prevchr_len); | |
| 714 | 3206 else if (has_mbyte) |
| 474 | 3207 prevchr_len += (*mb_ptr2len)(regparse + prevchr_len); |
| 7 | 3208 else |
| 3209 #endif | |
| 3210 ++prevchr_len; | |
| 3211 } | |
| 3212 regparse += prevchr_len; | |
| 3213 prev_at_start = at_start; | |
| 3214 at_start = FALSE; | |
| 3215 prevprevchr = prevchr; | |
| 3216 prevchr = curchr; | |
| 3217 curchr = nextchr; /* use previously unget char, or -1 */ | |
| 3218 nextchr = -1; | |
| 3219 } | |
| 3220 | |
| 3221 /* | |
| 3222 * Skip a character while keeping the value of prev_at_start for at_start. | |
| 3223 * prevchr and prevprevchr are also kept. | |
| 3224 */ | |
| 3225 static void | |
|
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diff
changeset
|
3226 skipchr_keepstart(void) |
| 7 | 3227 { |
| 3228 int as = prev_at_start; | |
| 3229 int pr = prevchr; | |
| 3230 int prpr = prevprevchr; | |
| 3231 | |
| 3232 skipchr(); | |
| 3233 at_start = as; | |
| 3234 prevchr = pr; | |
| 3235 prevprevchr = prpr; | |
| 3236 } | |
| 3237 | |
| 4444 | 3238 /* |
| 3239 * Get the next character from the pattern. We know about magic and such, so | |
| 3240 * therefore we need a lexical analyzer. | |
| 3241 */ | |
| 7 | 3242 static int |
|
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diff
changeset
|
3243 getchr(void) |
| 7 | 3244 { |
| 3245 int chr = peekchr(); | |
| 3246 | |
| 3247 skipchr(); | |
| 3248 return chr; | |
| 3249 } | |
| 3250 | |
| 3251 /* | |
| 3252 * put character back. Works only once! | |
| 3253 */ | |
| 3254 static void | |
|
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diff
changeset
|
3255 ungetchr(void) |
| 7 | 3256 { |
| 3257 nextchr = curchr; | |
| 3258 curchr = prevchr; | |
| 3259 prevchr = prevprevchr; | |
| 3260 at_start = prev_at_start; | |
| 3261 prev_at_start = FALSE; | |
| 3262 | |
| 3263 /* Backup regparse, so that it's at the same position as before the | |
| 3264 * getchr(). */ | |
| 3265 regparse -= prevchr_len; | |
| 3266 } | |
| 3267 | |
| 3268 /* | |
| 29 | 3269 * Get and return the value of the hex string at the current position. |
| 3270 * Return -1 if there is no valid hex number. | |
| 3271 * The position is updated: | |
| 24 | 3272 * blahblah\%x20asdf |
| 856 | 3273 * before-^ ^-after |
| 24 | 3274 * The parameter controls the maximum number of input characters. This will be |
| 3275 * 2 when reading a \%x20 sequence and 4 when reading a \%u20AC sequence. | |
| 3276 */ | |
| 3277 static int | |
|
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diff
changeset
|
3278 gethexchrs(int maxinputlen) |
| 24 | 3279 { |
| 3280 int nr = 0; | |
| 3281 int c; | |
| 3282 int i; | |
| 3283 | |
| 3284 for (i = 0; i < maxinputlen; ++i) | |
| 3285 { | |
| 3286 c = regparse[0]; | |
| 3287 if (!vim_isxdigit(c)) | |
| 3288 break; | |
| 3289 nr <<= 4; | |
| 3290 nr |= hex2nr(c); | |
| 3291 ++regparse; | |
| 3292 } | |
| 3293 | |
| 3294 if (i == 0) | |
| 3295 return -1; | |
| 3296 return nr; | |
| 3297 } | |
| 3298 | |
| 3299 /* | |
|
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|
3300 * Get and return the value of the decimal string immediately after the |
| 24 | 3301 * current position. Return -1 for invalid. Consumes all digits. |
| 3302 */ | |
| 3303 static int | |
|
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diff
changeset
|
3304 getdecchrs(void) |
| 24 | 3305 { |
| 3306 int nr = 0; | |
| 3307 int c; | |
| 3308 int i; | |
| 3309 | |
| 3310 for (i = 0; ; ++i) | |
| 3311 { | |
| 3312 c = regparse[0]; | |
| 3313 if (c < '0' || c > '9') | |
| 3314 break; | |
| 3315 nr *= 10; | |
| 3316 nr += c - '0'; | |
| 3317 ++regparse; | |
|
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|
3318 curchr = -1; /* no longer valid */ |
| 24 | 3319 } |
| 3320 | |
| 3321 if (i == 0) | |
| 3322 return -1; | |
| 3323 return nr; | |
| 3324 } | |
| 3325 | |
| 3326 /* | |
| 3327 * get and return the value of the octal string immediately after the current | |
| 3328 * position. Return -1 for invalid, or 0-255 for valid. Smart enough to handle | |
| 3329 * numbers > 377 correctly (for example, 400 is treated as 40) and doesn't | |
| 3330 * treat 8 or 9 as recognised characters. Position is updated: | |
| 3331 * blahblah\%o210asdf | |
| 856 | 3332 * before-^ ^-after |
| 24 | 3333 */ |
| 3334 static int | |
|
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diff
changeset
|
3335 getoctchrs(void) |
| 24 | 3336 { |
| 3337 int nr = 0; | |
| 3338 int c; | |
| 3339 int i; | |
| 3340 | |
| 3341 for (i = 0; i < 3 && nr < 040; ++i) | |
| 3342 { | |
| 3343 c = regparse[0]; | |
| 3344 if (c < '0' || c > '7') | |
| 3345 break; | |
| 3346 nr <<= 3; | |
| 3347 nr |= hex2nr(c); | |
| 3348 ++regparse; | |
| 3349 } | |
| 3350 | |
| 3351 if (i == 0) | |
| 3352 return -1; | |
| 3353 return nr; | |
| 3354 } | |
| 3355 | |
| 3356 /* | |
| 3357 * Get a number after a backslash that is inside []. | |
| 3358 * When nothing is recognized return a backslash. | |
| 3359 */ | |
| 3360 static int | |
|
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diff
changeset
|
3361 coll_get_char(void) |
| 24 | 3362 { |
| 3363 int nr = -1; | |
| 3364 | |
| 3365 switch (*regparse++) | |
| 3366 { | |
| 3367 case 'd': nr = getdecchrs(); break; | |
| 3368 case 'o': nr = getoctchrs(); break; | |
| 3369 case 'x': nr = gethexchrs(2); break; | |
| 3370 case 'u': nr = gethexchrs(4); break; | |
| 3371 case 'U': nr = gethexchrs(8); break; | |
| 3372 } | |
| 3373 if (nr < 0) | |
| 3374 { | |
| 3375 /* If getting the number fails be backwards compatible: the character | |
| 3376 * is a backslash. */ | |
| 3377 --regparse; | |
| 3378 nr = '\\'; | |
| 3379 } | |
| 3380 return nr; | |
| 3381 } | |
| 3382 | |
| 3383 /* | |
| 7 | 3384 * read_limits - Read two integers to be taken as a minimum and maximum. |
| 3385 * If the first character is '-', then the range is reversed. | |
| 3386 * Should end with 'end'. If minval is missing, zero is default, if maxval is | |
| 3387 * missing, a very big number is the default. | |
| 3388 */ | |
| 3389 static int | |
|
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diff
changeset
|
3390 read_limits(long *minval, long *maxval) |
| 7 | 3391 { |
| 3392 int reverse = FALSE; | |
| 3393 char_u *first_char; | |
| 3394 long tmp; | |
| 3395 | |
| 3396 if (*regparse == '-') | |
| 3397 { | |
| 3398 /* Starts with '-', so reverse the range later */ | |
| 3399 regparse++; | |
| 3400 reverse = TRUE; | |
| 3401 } | |
| 3402 first_char = regparse; | |
| 3403 *minval = getdigits(®parse); | |
| 3404 if (*regparse == ',') /* There is a comma */ | |
| 3405 { | |
| 3406 if (vim_isdigit(*++regparse)) | |
| 3407 *maxval = getdigits(®parse); | |
| 3408 else | |
| 3409 *maxval = MAX_LIMIT; | |
| 3410 } | |
| 3411 else if (VIM_ISDIGIT(*first_char)) | |
| 3412 *maxval = *minval; /* It was \{n} or \{-n} */ | |
| 3413 else | |
| 3414 *maxval = MAX_LIMIT; /* It was \{} or \{-} */ | |
| 3415 if (*regparse == '\\') | |
| 3416 regparse++; /* Allow either \{...} or \{...\} */ | |
| 167 | 3417 if (*regparse != '}') |
| 7 | 3418 { |
| 3419 sprintf((char *)IObuff, _("E554: Syntax error in %s{...}"), | |
| 3420 reg_magic == MAGIC_ALL ? "" : "\\"); | |
| 3421 EMSG_RET_FAIL(IObuff); | |
| 3422 } | |
| 3423 | |
| 3424 /* | |
| 3425 * Reverse the range if there was a '-', or make sure it is in the right | |
| 3426 * order otherwise. | |
| 3427 */ | |
| 3428 if ((!reverse && *minval > *maxval) || (reverse && *minval < *maxval)) | |
| 3429 { | |
| 3430 tmp = *minval; | |
| 3431 *minval = *maxval; | |
| 3432 *maxval = tmp; | |
| 3433 } | |
| 3434 skipchr(); /* let's be friends with the lexer again */ | |
| 3435 return OK; | |
| 3436 } | |
| 3437 | |
| 3438 /* | |
| 3439 * vim_regexec and friends | |
| 3440 */ | |
| 3441 | |
| 3442 /* | |
| 3443 * Global work variables for vim_regexec(). | |
| 3444 */ | |
| 3445 | |
| 3446 /* The current match-position is remembered with these variables: */ | |
| 3447 static linenr_T reglnum; /* line number, relative to first line */ | |
| 3448 static char_u *regline; /* start of current line */ | |
| 3449 static char_u *reginput; /* current input, points into "regline" */ | |
| 3450 | |
| 3451 static int need_clear_subexpr; /* subexpressions still need to be | |
| 3452 * cleared */ | |
| 3453 #ifdef FEAT_SYN_HL | |
| 3454 static int need_clear_zsubexpr = FALSE; /* extmatch subexpressions | |
| 3455 * still need to be cleared */ | |
| 3456 #endif | |
| 3457 | |
| 3458 /* | |
| 3459 * Structure used to save the current input state, when it needs to be | |
| 3460 * restored after trying a match. Used by reg_save() and reg_restore(). | |
| 233 | 3461 * Also stores the length of "backpos". |
| 7 | 3462 */ |
| 3463 typedef struct | |
| 3464 { | |
| 3465 union | |
| 3466 { | |
| 3467 char_u *ptr; /* reginput pointer, for single-line regexp */ | |
| 3468 lpos_T pos; /* reginput pos, for multi-line regexp */ | |
| 3469 } rs_u; | |
| 233 | 3470 int rs_len; |
| 7 | 3471 } regsave_T; |
| 3472 | |
| 3473 /* struct to save start/end pointer/position in for \(\) */ | |
| 3474 typedef struct | |
| 3475 { | |
| 3476 union | |
| 3477 { | |
| 3478 char_u *ptr; | |
| 3479 lpos_T pos; | |
| 3480 } se_u; | |
| 3481 } save_se_T; | |
| 3482 | |
| 1579 | 3483 /* used for BEHIND and NOBEHIND matching */ |
| 3484 typedef struct regbehind_S | |
| 3485 { | |
| 3486 regsave_T save_after; | |
| 3487 regsave_T save_behind; | |
| 1602 | 3488 int save_need_clear_subexpr; |
| 1579 | 3489 save_se_T save_start[NSUBEXP]; |
| 3490 save_se_T save_end[NSUBEXP]; | |
| 3491 } regbehind_T; | |
| 3492 | |
|
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3493 static char_u *reg_getline(linenr_T lnum); |
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3494 static long bt_regexec_both(char_u *line, colnr_T col, proftime_T *tm, int *timed_out); |
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3495 static long regtry(bt_regprog_T *prog, colnr_T col, proftime_T *tm, int *timed_out); |
|
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|
3496 static void cleanup_subexpr(void); |
| 7 | 3497 #ifdef FEAT_SYN_HL |
|
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3498 static void cleanup_zsubexpr(void); |
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3499 #endif |
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|
3500 static void save_subexpr(regbehind_T *bp); |
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|
3501 static void restore_subexpr(regbehind_T *bp); |
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|
3502 static void reg_nextline(void); |
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3503 static void reg_save(regsave_T *save, garray_T *gap); |
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|
3504 static void reg_restore(regsave_T *save, garray_T *gap); |
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|
3505 static int reg_save_equal(regsave_T *save); |
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|
3506 static void save_se_multi(save_se_T *savep, lpos_T *posp); |
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diff
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|
3507 static void save_se_one(save_se_T *savep, char_u **pp); |
| 7 | 3508 |
| 3509 /* Save the sub-expressions before attempting a match. */ | |
| 3510 #define save_se(savep, posp, pp) \ | |
| 3511 REG_MULTI ? save_se_multi((savep), (posp)) : save_se_one((savep), (pp)) | |
| 3512 | |
| 3513 /* After a failed match restore the sub-expressions. */ | |
| 3514 #define restore_se(savep, posp, pp) { \ | |
| 3515 if (REG_MULTI) \ | |
| 3516 *(posp) = (savep)->se_u.pos; \ | |
| 3517 else \ | |
| 3518 *(pp) = (savep)->se_u.ptr; } | |
| 3519 | |
|
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|
3520 static int re_num_cmp(long_u val, char_u *scan); |
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|
3521 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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3522 static int regmatch(char_u *prog, proftime_T *tm, int *timed_out); |
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|
3523 static int regrepeat(char_u *p, long maxcount); |
| 7 | 3524 |
| 3525 #ifdef DEBUG | |
| 3526 int regnarrate = 0; | |
| 3527 #endif | |
| 3528 | |
| 3529 /* | |
| 3530 * Sometimes need to save a copy of a line. Since alloc()/free() is very | |
| 3531 * slow, we keep one allocated piece of memory and only re-allocate it when | |
| 4444 | 3532 * it's too small. It's freed in bt_regexec_both() when finished. |
| 7 | 3533 */ |
| 1468 | 3534 static char_u *reg_tofree = NULL; |
| 7 | 3535 static unsigned reg_tofreelen; |
| 3536 | |
| 3537 /* | |
|
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|
3538 * Structure used to store the execution state of the regex engine. |
| 1209 | 3539 * Which ones are set depends on whether a single-line or multi-line match is |
| 7 | 3540 * done: |
| 3541 * single-line multi-line | |
| 3542 * reg_match ®match_T NULL | |
| 3543 * reg_mmatch NULL ®mmatch_T | |
| 3544 * reg_startp reg_match->startp <invalid> | |
| 3545 * reg_endp reg_match->endp <invalid> | |
| 3546 * reg_startpos <invalid> reg_mmatch->startpos | |
| 3547 * reg_endpos <invalid> reg_mmatch->endpos | |
| 3548 * reg_win NULL window in which to search | |
| 4061 | 3549 * reg_buf curbuf buffer in which to search |
| 7 | 3550 * reg_firstlnum <invalid> first line in which to search |
| 3551 * reg_maxline 0 last line nr | |
| 3552 * reg_line_lbr FALSE or TRUE FALSE | |
| 3553 */ | |
|
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3554 typedef struct { |
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3555 regmatch_T *reg_match; |
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3556 regmmatch_T *reg_mmatch; |
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3557 char_u **reg_startp; |
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3558 char_u **reg_endp; |
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3559 lpos_T *reg_startpos; |
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3560 lpos_T *reg_endpos; |
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3561 win_T *reg_win; |
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3562 buf_T *reg_buf; |
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3563 linenr_T reg_firstlnum; |
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3564 linenr_T reg_maxline; |
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3565 int reg_line_lbr; /* "\n" in string is line break */ |
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3566 |
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3567 /* Internal copy of 'ignorecase'. It is set at each call to vim_regexec(). |
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3568 * Normally it gets the value of "rm_ic" or "rmm_ic", but when the pattern |
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3569 * contains '\c' or '\C' the value is overruled. */ |
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3570 int reg_ic; |
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3571 |
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3572 #ifdef FEAT_MBYTE |
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3573 /* Similar to rex.reg_ic, but only for 'combining' characters. Set with \Z |
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3574 * flag in the regexp. Defaults to false, always. */ |
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3575 int reg_icombine; |
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3576 #endif |
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3577 |
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3578 /* Copy of "rmm_maxcol": maximum column to search for a match. Zero when |
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3579 * there is no maximum. */ |
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3580 colnr_T reg_maxcol; |
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3581 } regexec_T; |
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3582 |
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3583 static regexec_T rex; |
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3584 static int rex_in_use = FALSE; |
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3585 |
| 7 | 3586 |
| 270 | 3587 /* Values for rs_state in regitem_T. */ |
| 3588 typedef enum regstate_E | |
| 3589 { | |
| 3590 RS_NOPEN = 0 /* NOPEN and NCLOSE */ | |
| 3591 , RS_MOPEN /* MOPEN + [0-9] */ | |
| 3592 , RS_MCLOSE /* MCLOSE + [0-9] */ | |
| 3593 #ifdef FEAT_SYN_HL | |
| 3594 , RS_ZOPEN /* ZOPEN + [0-9] */ | |
| 3595 , RS_ZCLOSE /* ZCLOSE + [0-9] */ | |
| 3596 #endif | |
| 3597 , RS_BRANCH /* BRANCH */ | |
| 3598 , RS_BRCPLX_MORE /* BRACE_COMPLEX and trying one more match */ | |
| 3599 , RS_BRCPLX_LONG /* BRACE_COMPLEX and trying longest match */ | |
| 3600 , RS_BRCPLX_SHORT /* BRACE_COMPLEX and trying shortest match */ | |
| 3601 , RS_NOMATCH /* NOMATCH */ | |
| 3602 , RS_BEHIND1 /* BEHIND / NOBEHIND matching rest */ | |
| 3603 , RS_BEHIND2 /* BEHIND / NOBEHIND matching behind part */ | |
| 3604 , RS_STAR_LONG /* STAR/PLUS/BRACE_SIMPLE longest match */ | |
| 3605 , RS_STAR_SHORT /* STAR/PLUS/BRACE_SIMPLE shortest match */ | |
| 3606 } regstate_T; | |
| 3607 | |
| 3608 /* | |
| 3609 * When there are alternatives a regstate_T is put on the regstack to remember | |
| 3610 * what we are doing. | |
| 3611 * Before it may be another type of item, depending on rs_state, to remember | |
| 3612 * more things. | |
| 3613 */ | |
| 3614 typedef struct regitem_S | |
| 3615 { | |
| 3616 regstate_T rs_state; /* what we are doing, one of RS_ above */ | |
| 3617 char_u *rs_scan; /* current node in program */ | |
| 3618 union | |
| 3619 { | |
| 3620 save_se_T sesave; | |
| 3621 regsave_T regsave; | |
| 3622 } rs_un; /* room for saving reginput */ | |
| 1579 | 3623 short rs_no; /* submatch nr or BEHIND/NOBEHIND */ |
| 270 | 3624 } regitem_T; |
| 3625 | |
|
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3626 static regitem_T *regstack_push(regstate_T state, char_u *scan); |
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3627 static void regstack_pop(char_u **scan); |
| 270 | 3628 |
| 3629 /* used for STAR, PLUS and BRACE_SIMPLE matching */ | |
| 3630 typedef struct regstar_S | |
| 3631 { | |
| 3632 int nextb; /* next byte */ | |
| 3633 int nextb_ic; /* next byte reverse case */ | |
| 3634 long count; | |
| 3635 long minval; | |
| 3636 long maxval; | |
| 3637 } regstar_T; | |
| 3638 | |
| 3639 /* used to store input position when a BACK was encountered, so that we now if | |
| 3640 * we made any progress since the last time. */ | |
| 3641 typedef struct backpos_S | |
| 3642 { | |
| 3643 char_u *bp_scan; /* "scan" where BACK was encountered */ | |
| 3644 regsave_T bp_pos; /* last input position */ | |
| 3645 } backpos_T; | |
| 3646 | |
| 3647 /* | |
| 1520 | 3648 * "regstack" and "backpos" are used by regmatch(). They are kept over calls |
| 3649 * to avoid invoking malloc() and free() often. | |
| 3650 * "regstack" is a stack with regitem_T items, sometimes preceded by regstar_T | |
| 3651 * or regbehind_T. | |
| 3652 * "backpos_T" is a table with backpos_T for BACK | |
| 270 | 3653 */ |
| 1520 | 3654 static garray_T regstack = {0, 0, 0, 0, NULL}; |
| 3655 static garray_T backpos = {0, 0, 0, 0, NULL}; | |
| 3656 | |
| 3657 /* | |
| 3658 * Both for regstack and backpos tables we use the following strategy of | |
| 3659 * allocation (to reduce malloc/free calls): | |
| 3660 * - Initial size is fairly small. | |
| 3661 * - When needed, the tables are grown bigger (8 times at first, double after | |
| 3662 * that). | |
| 3663 * - After executing the match we free the memory only if the array has grown. | |
| 3664 * Thus the memory is kept allocated when it's at the initial size. | |
| 3665 * This makes it fast while not keeping a lot of memory allocated. | |
| 3666 * A three times speed increase was observed when using many simple patterns. | |
| 3667 */ | |
| 3668 #define REGSTACK_INITIAL 2048 | |
| 3669 #define BACKPOS_INITIAL 64 | |
| 3670 | |
| 3671 #if defined(EXITFREE) || defined(PROTO) | |
| 3672 void | |
|
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3673 free_regexp_stuff(void) |
| 1520 | 3674 { |
| 3675 ga_clear(®stack); | |
| 3676 ga_clear(&backpos); | |
| 3677 vim_free(reg_tofree); | |
| 3678 vim_free(reg_prev_sub); | |
| 3679 } | |
| 3680 #endif | |
| 270 | 3681 |
| 7 | 3682 /* |
| 3683 * Get pointer to the line "lnum", which is relative to "reg_firstlnum". | |
| 3684 */ | |
| 3685 static char_u * | |
|
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3686 reg_getline(linenr_T lnum) |
| 7 | 3687 { |
| 3688 /* when looking behind for a match/no-match lnum is negative. But we | |
| 3689 * can't go before line 1 */ | |
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3690 if (rex.reg_firstlnum + lnum < 1) |
| 7 | 3691 return NULL; |
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3692 if (lnum > rex.reg_maxline) |
| 481 | 3693 /* Must have matched the "\n" in the last line. */ |
| 3694 return (char_u *)""; | |
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3695 return ml_get_buf(rex.reg_buf, rex.reg_firstlnum + lnum, FALSE); |
| 7 | 3696 } |
| 3697 | |
| 3698 static regsave_T behind_pos; | |
| 3699 | |
| 3700 #ifdef FEAT_SYN_HL | |
| 3701 static char_u *reg_startzp[NSUBEXP]; /* Workspace to mark beginning */ | |
| 3702 static char_u *reg_endzp[NSUBEXP]; /* and end of \z(...\) matches */ | |
| 3703 static lpos_T reg_startzpos[NSUBEXP]; /* idem, beginning pos */ | |
| 3704 static lpos_T reg_endzpos[NSUBEXP]; /* idem, end pos */ | |
| 3705 #endif | |
| 3706 | |
| 3707 /* TRUE if using multi-line regexp. */ | |
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3708 #define REG_MULTI (rex.reg_match == NULL) |
| 4444 | 3709 |
| 7 | 3710 /* |
| 3711 * Match a regexp against a string. | |
| 3712 * "rmp->regprog" is a compiled regexp as returned by vim_regcomp(). | |
| 3713 * Uses curbuf for line count and 'iskeyword'. | |
| 5838 | 3714 * if "line_lbr" is TRUE consider a "\n" in "line" to be a line break. |
| 7 | 3715 * |
| 6390 | 3716 * Returns 0 for failure, number of lines contained in the match otherwise. |
| 7 | 3717 */ |
| 4444 | 3718 static int |
|
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3719 bt_regexec_nl( |
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3720 regmatch_T *rmp, |
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3721 char_u *line, /* string to match against */ |
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3722 colnr_T col, /* column to start looking for match */ |
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3723 int line_lbr) |
| 7 | 3724 { |
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3725 rex.reg_match = rmp; |
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3726 rex.reg_mmatch = NULL; |
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3727 rex.reg_maxline = 0; |
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3728 rex.reg_line_lbr = line_lbr; |
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3729 rex.reg_buf = curbuf; |
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3730 rex.reg_win = NULL; |
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3731 rex.reg_ic = rmp->rm_ic; |
| 7 | 3732 #ifdef FEAT_MBYTE |
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3733 rex.reg_icombine = FALSE; |
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3734 #endif |
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3735 rex.reg_maxcol = 0; |
| 6390 | 3736 |
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3737 return bt_regexec_both(line, col, NULL, NULL); |
| 7 | 3738 } |
| 3739 | |
| 3740 /* | |
| 3741 * Match a regexp against multiple lines. | |
| 3742 * "rmp->regprog" is a compiled regexp as returned by vim_regcomp(). | |
| 3743 * Uses curbuf for line count and 'iskeyword'. | |
| 3744 * | |
| 3745 * Return zero if there is no match. Return number of lines contained in the | |
| 3746 * match otherwise. | |
| 3747 */ | |
| 4444 | 3748 static long |
|
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3749 bt_regexec_multi( |
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3750 regmmatch_T *rmp, |
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3751 win_T *win, /* window in which to search or NULL */ |
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3752 buf_T *buf, /* buffer in which to search */ |
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3753 linenr_T lnum, /* nr of line to start looking for match */ |
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3754 colnr_T col, /* column to start looking for match */ |
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3755 proftime_T *tm, /* timeout limit or NULL */ |
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3756 int *timed_out) /* flag set on timeout or NULL */ |
| 7 | 3757 { |
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3758 rex.reg_match = NULL; |
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3759 rex.reg_mmatch = rmp; |
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3760 rex.reg_buf = buf; |
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3761 rex.reg_win = win; |
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3762 rex.reg_firstlnum = lnum; |
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3763 rex.reg_maxline = rex.reg_buf->b_ml.ml_line_count - lnum; |
|
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commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
3764 rex.reg_line_lbr = FALSE; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
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parents:
10187
diff
changeset
|
3765 rex.reg_ic = rmp->rmm_ic; |
| 7 | 3766 #ifdef FEAT_MBYTE |
|
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parents:
10187
diff
changeset
|
3767 rex.reg_icombine = FALSE; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
3768 #endif |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
3769 rex.reg_maxcol = rmp->rmm_maxcol; |
| 7 | 3770 |
|
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diff
changeset
|
3771 return bt_regexec_both(NULL, col, tm, timed_out); |
| 7 | 3772 } |
| 3773 | |
| 3774 /* | |
| 3775 * Match a regexp against a string ("line" points to the string) or multiple | |
| 3776 * lines ("line" is NULL, use reg_getline()). | |
| 6390 | 3777 * Returns 0 for failure, number of lines contained in the match otherwise. |
| 7 | 3778 */ |
| 3779 static long | |
|
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7807
diff
changeset
|
3780 bt_regexec_both( |
|
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
3781 char_u *line, |
|
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
3782 colnr_T col, /* column to start looking for match */ |
|
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|
3783 proftime_T *tm, /* timeout limit or NULL */ |
|
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diff
changeset
|
3784 int *timed_out) /* flag set on timeout or NULL */ |
| 7 | 3785 { |
| 6390 | 3786 bt_regprog_T *prog; |
| 3787 char_u *s; | |
| 3788 long retval = 0L; | |
| 7 | 3789 |
| 1520 | 3790 /* Create "regstack" and "backpos" if they are not allocated yet. |
| 3791 * We allocate *_INITIAL amount of bytes first and then set the grow size | |
| 3792 * to much bigger value to avoid many malloc calls in case of deep regular | |
| 3793 * expressions. */ | |
| 3794 if (regstack.ga_data == NULL) | |
| 3795 { | |
| 3796 /* Use an item size of 1 byte, since we push different things | |
| 3797 * onto the regstack. */ | |
| 3798 ga_init2(®stack, 1, REGSTACK_INITIAL); | |
| 7009 | 3799 (void)ga_grow(®stack, REGSTACK_INITIAL); |
| 1520 | 3800 regstack.ga_growsize = REGSTACK_INITIAL * 8; |
| 3801 } | |
| 3802 | |
| 3803 if (backpos.ga_data == NULL) | |
| 3804 { | |
| 3805 ga_init2(&backpos, sizeof(backpos_T), BACKPOS_INITIAL); | |
| 7009 | 3806 (void)ga_grow(&backpos, BACKPOS_INITIAL); |
| 1520 | 3807 backpos.ga_growsize = BACKPOS_INITIAL * 8; |
| 3808 } | |
| 270 | 3809 |
| 7 | 3810 if (REG_MULTI) |
| 3811 { | |
|
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Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
3812 prog = (bt_regprog_T *)rex.reg_mmatch->regprog; |
| 7 | 3813 line = reg_getline((linenr_T)0); |
|
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10187
diff
changeset
|
3814 rex.reg_startpos = rex.reg_mmatch->startpos; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
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10187
diff
changeset
|
3815 rex.reg_endpos = rex.reg_mmatch->endpos; |
| 7 | 3816 } |
| 3817 else | |
| 3818 { | |
|
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Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
3819 prog = (bt_regprog_T *)rex.reg_match->regprog; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
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parents:
10187
diff
changeset
|
3820 rex.reg_startp = rex.reg_match->startp; |
|
d76ccdacb41e
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parents:
10187
diff
changeset
|
3821 rex.reg_endp = rex.reg_match->endp; |
| 7 | 3822 } |
| 3823 | |
| 3824 /* Be paranoid... */ | |
| 3825 if (prog == NULL || line == NULL) | |
| 3826 { | |
| 3827 EMSG(_(e_null)); | |
| 3828 goto theend; | |
| 3829 } | |
| 3830 | |
| 3831 /* Check validity of program. */ | |
| 3832 if (prog_magic_wrong()) | |
| 3833 goto theend; | |
| 3834 | |
| 410 | 3835 /* 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
|
3836 if (rex.reg_maxcol > 0 && col >= rex.reg_maxcol) |
| 410 | 3837 goto theend; |
| 3838 | |
|
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Christian Brabandt <cb@256bit.org>
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10187
diff
changeset
|
3839 /* If pattern contains "\c" or "\C": overrule value of rex.reg_ic */ |
| 7 | 3840 if (prog->regflags & RF_ICASE) |
|
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Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
3841 rex.reg_ic = TRUE; |
| 7 | 3842 else if (prog->regflags & RF_NOICASE) |
|
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parents:
10187
diff
changeset
|
3843 rex.reg_ic = FALSE; |
| 7 | 3844 |
| 3845 #ifdef FEAT_MBYTE | |
|
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10187
diff
changeset
|
3846 /* If pattern contains "\Z" overrule value of rex.reg_icombine */ |
| 7 | 3847 if (prog->regflags & RF_ICOMBINE) |
|
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Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
3848 rex.reg_icombine = TRUE; |
| 7 | 3849 #endif |
| 3850 | |
| 3851 /* If there is a "must appear" string, look for it. */ | |
| 3852 if (prog->regmust != NULL) | |
| 3853 { | |
| 3854 int c; | |
| 3855 | |
| 3856 #ifdef FEAT_MBYTE | |
| 3857 if (has_mbyte) | |
| 3858 c = (*mb_ptr2char)(prog->regmust); | |
| 3859 else | |
| 3860 #endif | |
| 3861 c = *prog->regmust; | |
| 3862 s = line + col; | |
| 170 | 3863 |
| 3864 /* | |
| 3865 * This is used very often, esp. for ":global". Use three versions of | |
| 3866 * the loop to avoid overhead of conditions. | |
| 3867 */ | |
|
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10187
diff
changeset
|
3868 if (!rex.reg_ic |
| 170 | 3869 #ifdef FEAT_MBYTE |
| 3870 && !has_mbyte | |
| 3871 #endif | |
| 3872 ) | |
| 3873 while ((s = vim_strbyte(s, c)) != NULL) | |
| 3874 { | |
| 3875 if (cstrncmp(s, prog->regmust, &prog->regmlen) == 0) | |
| 3876 break; /* Found it. */ | |
| 3877 ++s; | |
| 3878 } | |
| 3879 #ifdef FEAT_MBYTE | |
|
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10187
diff
changeset
|
3880 else if (!rex.reg_ic || (!enc_utf8 && mb_char2len(c) > 1)) |
| 170 | 3881 while ((s = vim_strchr(s, c)) != NULL) |
| 3882 { | |
| 3883 if (cstrncmp(s, prog->regmust, &prog->regmlen) == 0) | |
| 3884 break; /* Found it. */ | |
|
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|
3885 MB_PTR_ADV(s); |
| 170 | 3886 } |
| 3887 #endif | |
| 3888 else | |
| 3889 while ((s = cstrchr(s, c)) != NULL) | |
| 3890 { | |
| 3891 if (cstrncmp(s, prog->regmust, &prog->regmlen) == 0) | |
| 3892 break; /* Found it. */ | |
|
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changeset
|
3893 MB_PTR_ADV(s); |
| 170 | 3894 } |
| 7 | 3895 if (s == NULL) /* Not present. */ |
| 3896 goto theend; | |
| 3897 } | |
| 3898 | |
| 3899 regline = line; | |
| 3900 reglnum = 0; | |
| 2578 | 3901 reg_toolong = FALSE; |
| 7 | 3902 |
| 3903 /* Simplest case: Anchored match need be tried only once. */ | |
| 3904 if (prog->reganch) | |
| 3905 { | |
| 3906 int c; | |
| 3907 | |
| 3908 #ifdef FEAT_MBYTE | |
| 3909 if (has_mbyte) | |
| 3910 c = (*mb_ptr2char)(regline + col); | |
| 3911 else | |
| 3912 #endif | |
| 3913 c = regline[col]; | |
| 3914 if (prog->regstart == NUL | |
| 3915 || prog->regstart == c | |
|
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10187
diff
changeset
|
3916 || (rex.reg_ic && (( |
| 7 | 3917 #ifdef FEAT_MBYTE |
| 3918 (enc_utf8 && utf_fold(prog->regstart) == utf_fold(c))) | |
| 3919 || (c < 255 && prog->regstart < 255 && | |
| 3920 #endif | |
| 1347 | 3921 MB_TOLOWER(prog->regstart) == MB_TOLOWER(c))))) |
|
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|
3922 retval = regtry(prog, col, tm, timed_out); |
| 7 | 3923 else |
| 3924 retval = 0; | |
| 3925 } | |
| 3926 else | |
| 3927 { | |
| 1521 | 3928 #ifdef FEAT_RELTIME |
| 3929 int tm_count = 0; | |
| 3930 #endif | |
| 7 | 3931 /* Messy cases: unanchored match. */ |
| 180 | 3932 while (!got_int) |
| 7 | 3933 { |
| 3934 if (prog->regstart != NUL) | |
| 3935 { | |
| 170 | 3936 /* Skip until the char we know it must start with. |
| 3937 * Used often, do some work to avoid call overhead. */ | |
|
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10187
diff
changeset
|
3938 if (!rex.reg_ic |
| 170 | 3939 #ifdef FEAT_MBYTE |
| 3940 && !has_mbyte | |
| 3941 #endif | |
| 3942 ) | |
| 3943 s = vim_strbyte(regline + col, prog->regstart); | |
| 3944 else | |
| 3945 s = cstrchr(regline + col, prog->regstart); | |
| 7 | 3946 if (s == NULL) |
| 3947 { | |
| 3948 retval = 0; | |
| 3949 break; | |
| 3950 } | |
| 3951 col = (int)(s - regline); | |
| 3952 } | |
| 3953 | |
| 410 | 3954 /* Check for maximum column to try. */ |
|
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10187
diff
changeset
|
3955 if (rex.reg_maxcol > 0 && col >= rex.reg_maxcol) |
| 410 | 3956 { |
| 3957 retval = 0; | |
| 3958 break; | |
| 3959 } | |
| 3960 | |
|
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changeset
|
3961 retval = regtry(prog, col, tm, timed_out); |
| 7 | 3962 if (retval > 0) |
| 3963 break; | |
| 3964 | |
| 3965 /* if not currently on the first line, get it again */ | |
| 3966 if (reglnum != 0) | |
| 3967 { | |
| 481 | 3968 reglnum = 0; |
| 7 | 3969 regline = reg_getline((linenr_T)0); |
| 3970 } | |
| 3971 if (regline[col] == NUL) | |
| 3972 break; | |
| 3973 #ifdef FEAT_MBYTE | |
| 3974 if (has_mbyte) | |
| 474 | 3975 col += (*mb_ptr2len)(regline + col); |
| 7 | 3976 else |
| 3977 #endif | |
| 3978 ++col; | |
| 1521 | 3979 #ifdef FEAT_RELTIME |
| 3980 /* Check for timeout once in a twenty times to avoid overhead. */ | |
| 3981 if (tm != NULL && ++tm_count == 20) | |
| 3982 { | |
| 3983 tm_count = 0; | |
| 3984 if (profile_passed_limit(tm)) | |
|
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|
3985 { |
|
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|
3986 if (timed_out != NULL) |
|
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changeset
|
3987 *timed_out = TRUE; |
| 1521 | 3988 break; |
|
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|
3989 } |
| 1521 | 3990 } |
| 3991 #endif | |
| 7 | 3992 } |
| 3993 } | |
| 3994 | |
| 3995 theend: | |
| 1520 | 3996 /* Free "reg_tofree" when it's a bit big. |
| 3997 * Free regstack and backpos if they are bigger than their initial size. */ | |
| 3998 if (reg_tofreelen > 400) | |
| 3999 { | |
| 4000 vim_free(reg_tofree); | |
| 4001 reg_tofree = NULL; | |
| 4002 } | |
| 4003 if (regstack.ga_maxlen > REGSTACK_INITIAL) | |
| 4004 ga_clear(®stack); | |
| 4005 if (backpos.ga_maxlen > BACKPOS_INITIAL) | |
| 4006 ga_clear(&backpos); | |
| 270 | 4007 |
| 7 | 4008 return retval; |
| 4009 } | |
| 4010 | |
| 4011 #ifdef FEAT_SYN_HL | |
|
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7009
diff
changeset
|
4012 static reg_extmatch_T *make_extmatch(void); |
| 7 | 4013 |
| 4014 /* | |
| 4015 * Create a new extmatch and mark it as referenced once. | |
| 4016 */ | |
| 4017 static reg_extmatch_T * | |
|
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7807
diff
changeset
|
4018 make_extmatch(void) |
| 7 | 4019 { |
| 4020 reg_extmatch_T *em; | |
| 4021 | |
| 4022 em = (reg_extmatch_T *)alloc_clear((unsigned)sizeof(reg_extmatch_T)); | |
| 4023 if (em != NULL) | |
| 4024 em->refcnt = 1; | |
| 4025 return em; | |
| 4026 } | |
| 4027 | |
| 4028 /* | |
| 4029 * Add a reference to an extmatch. | |
| 4030 */ | |
| 4031 reg_extmatch_T * | |
|
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7807
diff
changeset
|
4032 ref_extmatch(reg_extmatch_T *em) |
| 7 | 4033 { |
| 4034 if (em != NULL) | |
| 4035 em->refcnt++; | |
| 4036 return em; | |
| 4037 } | |
| 4038 | |
| 4039 /* | |
| 4040 * Remove a reference to an extmatch. If there are no references left, free | |
| 4041 * the info. | |
| 4042 */ | |
| 4043 void | |
|
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parents:
7807
diff
changeset
|
4044 unref_extmatch(reg_extmatch_T *em) |
| 7 | 4045 { |
| 4046 int i; | |
| 4047 | |
| 4048 if (em != NULL && --em->refcnt <= 0) | |
| 4049 { | |
| 4050 for (i = 0; i < NSUBEXP; ++i) | |
| 4051 vim_free(em->matches[i]); | |
| 4052 vim_free(em); | |
| 4053 } | |
| 4054 } | |
| 4055 #endif | |
| 4056 | |
| 4057 /* | |
| 4058 * regtry - try match of "prog" with at regline["col"]. | |
| 4059 * Returns 0 for failure, number of lines contained in the match otherwise. | |
| 4060 */ | |
| 4061 static long | |
|
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|
4062 regtry( |
|
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|
4063 bt_regprog_T *prog, |
|
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|
4064 colnr_T col, |
|
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|
4065 proftime_T *tm, /* timeout limit or NULL */ |
|
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11525
diff
changeset
|
4066 int *timed_out) /* flag set on timeout or NULL */ |
| 7 | 4067 { |
| 4068 reginput = regline + col; | |
| 4069 need_clear_subexpr = TRUE; | |
| 4070 #ifdef FEAT_SYN_HL | |
| 4071 /* Clear the external match subpointers if necessary. */ | |
| 4072 if (prog->reghasz == REX_SET) | |
| 4073 need_clear_zsubexpr = TRUE; | |
| 4074 #endif | |
| 4075 | |
|
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changeset
|
4076 if (regmatch(prog->program + 1, tm, timed_out) == 0) |
| 189 | 4077 return 0; |
| 4078 | |
| 4079 cleanup_subexpr(); | |
| 4080 if (REG_MULTI) | |
| 7 | 4081 { |
|
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diff
changeset
|
4082 if (rex.reg_startpos[0].lnum < 0) |
| 7 | 4083 { |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
4084 rex.reg_startpos[0].lnum = 0; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
4085 rex.reg_startpos[0].col = col; |
| 189 | 4086 } |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
4087 if (rex.reg_endpos[0].lnum < 0) |
| 189 | 4088 { |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
4089 rex.reg_endpos[0].lnum = reglnum; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
4090 rex.reg_endpos[0].col = (int)(reginput - regline); |
| 7 | 4091 } |
| 4092 else | |
| 189 | 4093 /* Use line number of "\ze". */ |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
4094 reglnum = rex.reg_endpos[0].lnum; |
| 189 | 4095 } |
| 4096 else | |
| 4097 { | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
4098 if (rex.reg_startp[0] == NULL) |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
4099 rex.reg_startp[0] = regline + col; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
4100 if (rex.reg_endp[0] == NULL) |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
4101 rex.reg_endp[0] = reginput; |
| 189 | 4102 } |
| 7 | 4103 #ifdef FEAT_SYN_HL |
| 189 | 4104 /* Package any found \z(...\) matches for export. Default is none. */ |
| 4105 unref_extmatch(re_extmatch_out); | |
| 4106 re_extmatch_out = NULL; | |
| 4107 | |
| 4108 if (prog->reghasz == REX_SET) | |
| 4109 { | |
| 4110 int i; | |
| 4111 | |
| 4112 cleanup_zsubexpr(); | |
| 4113 re_extmatch_out = make_extmatch(); | |
| 4114 for (i = 0; i < NSUBEXP; i++) | |
| 7 | 4115 { |
| 189 | 4116 if (REG_MULTI) |
| 7 | 4117 { |
| 189 | 4118 /* Only accept single line matches. */ |
| 4119 if (reg_startzpos[i].lnum >= 0 | |
| 5820 | 4120 && reg_endzpos[i].lnum == reg_startzpos[i].lnum |
| 4121 && reg_endzpos[i].col >= reg_startzpos[i].col) | |
| 189 | 4122 re_extmatch_out->matches[i] = |
| 4123 vim_strnsave(reg_getline(reg_startzpos[i].lnum) | |
| 7 | 4124 + reg_startzpos[i].col, |
| 189 | 4125 reg_endzpos[i].col - reg_startzpos[i].col); |
| 4126 } | |
| 4127 else | |
| 4128 { | |
| 4129 if (reg_startzp[i] != NULL && reg_endzp[i] != NULL) | |
| 4130 re_extmatch_out->matches[i] = | |
| 7 | 4131 vim_strnsave(reg_startzp[i], |
| 189 | 4132 (int)(reg_endzp[i] - reg_startzp[i])); |
| 7 | 4133 } |
| 4134 } | |
| 189 | 4135 } |
| 7 | 4136 #endif |
| 189 | 4137 return 1 + reglnum; |
| 7 | 4138 } |
| 4139 | |
| 4140 #ifdef FEAT_MBYTE | |
|
7805
0b6c37dd858d
commit https://github.com/vim/vim/commit/baaa7e9ec7398a813e21285c272fa99792642077
Christian Brabandt <cb@256bit.org>
parents:
7009
diff
changeset
|
4141 static int reg_prev_class(void); |
| 7 | 4142 |
| 4143 /* | |
| 4144 * Get class of previous character. | |
| 4145 */ | |
| 4146 static int | |
|
7833
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
4147 reg_prev_class(void) |
| 7 | 4148 { |
| 4149 if (reginput > regline) | |
| 4069 | 4150 return mb_get_class_buf(reginput - 1 |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
4151 - (*mb_head_off)(regline, reginput - 1), rex.reg_buf); |
| 7 | 4152 return -1; |
| 4153 } | |
| 5735 | 4154 #endif |
| 4155 | |
|
7805
0b6c37dd858d
commit https://github.com/vim/vim/commit/baaa7e9ec7398a813e21285c272fa99792642077
Christian Brabandt <cb@256bit.org>
parents:
7009
diff
changeset
|
4156 static int reg_match_visual(void); |
|
4730
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4157 |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4158 /* |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4159 * Return TRUE if the current reginput position matches the Visual area. |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4160 */ |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4161 static int |
|
7833
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
4162 reg_match_visual(void) |
|
4730
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4163 { |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4164 pos_T top, bot; |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4165 linenr_T lnum; |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4166 colnr_T col; |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
4167 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
|
4168 int mode; |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4169 colnr_T start, end; |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4170 colnr_T start2, end2; |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4171 colnr_T cols; |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4172 |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4173 /* 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
|
4174 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
|
4175 return FALSE; |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4176 |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4177 if (VIsual_active) |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4178 { |
|
11121
778c10516955
patch 8.0.0448: some macros are in lower case
Christian Brabandt <cb@256bit.org>
parents:
10359
diff
changeset
|
4179 if (LT_POS(VIsual, wp->w_cursor)) |
|
4730
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4180 { |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4181 top = VIsual; |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4182 bot = wp->w_cursor; |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4183 } |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4184 else |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4185 { |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4186 top = wp->w_cursor; |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4187 bot = VIsual; |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4188 } |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4189 mode = VIsual_mode; |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4190 } |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4191 else |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4192 { |
|
11121
778c10516955
patch 8.0.0448: some macros are in lower case
Christian Brabandt <cb@256bit.org>
parents:
10359
diff
changeset
|
4193 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
|
4194 { |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4195 top = curbuf->b_visual.vi_start; |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4196 bot = curbuf->b_visual.vi_end; |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4197 } |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4198 else |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4199 { |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4200 top = curbuf->b_visual.vi_end; |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4201 bot = curbuf->b_visual.vi_start; |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4202 } |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4203 mode = curbuf->b_visual.vi_mode; |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4204 } |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
4205 lnum = reglnum + rex.reg_firstlnum; |
|
4730
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4206 if (lnum < top.lnum || lnum > bot.lnum) |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4207 return FALSE; |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4208 |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4209 if (mode == 'v') |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4210 { |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4211 col = (colnr_T)(reginput - regline); |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4212 if ((lnum == top.lnum && col < top.col) |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4213 || (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
|
4214 return FALSE; |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4215 } |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4216 else if (mode == Ctrl_V) |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4217 { |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4218 getvvcol(wp, &top, &start, NULL, &end); |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4219 getvvcol(wp, &bot, &start2, NULL, &end2); |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4220 if (start2 < start) |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4221 start = start2; |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4222 if (end2 > end) |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4223 end = end2; |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4224 if (top.col == MAXCOL || bot.col == MAXCOL) |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4225 end = MAXCOL; |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4226 cols = win_linetabsize(wp, regline, (colnr_T)(reginput - regline)); |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4227 if (cols < start || cols > end - (*p_sel == 'e')) |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4228 return FALSE; |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4229 } |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4230 return TRUE; |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4231 } |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4232 |
|
11127
506f5d8b7d8b
patch 8.0.0451: some macros are in lower case
Christian Brabandt <cb@256bit.org>
parents:
11121
diff
changeset
|
4233 #define ADVANCE_REGINPUT() MB_PTR_ADV(reginput) |
| 7 | 4234 |
| 4235 /* | |
| 4236 * The arguments from BRACE_LIMITS are stored here. They are actually local | |
| 4237 * to regmatch(), but they are here to reduce the amount of stack space used | |
| 4238 * (it can be called recursively many times). | |
| 4239 */ | |
| 4240 static long bl_minval; | |
| 4241 static long bl_maxval; | |
| 4242 | |
| 4243 /* | |
| 4244 * regmatch - main matching routine | |
| 4245 * | |
| 180 | 4246 * Conceptually the strategy is simple: Check to see whether the current node |
| 4247 * matches, push an item onto the regstack and loop to see whether the rest | |
| 4248 * matches, and then act accordingly. In practice we make some effort to | |
| 4249 * avoid using the regstack, in particular by going through "ordinary" nodes | |
| 4250 * (that don't need to know whether the rest of the match failed) by a nested | |
| 4251 * loop. | |
| 7 | 4252 * |
| 4253 * Returns TRUE when there is a match. Leaves reginput and reglnum just after | |
| 4254 * the last matched character. | |
| 4255 * Returns FALSE when there is no match. Leaves reginput and reglnum in an | |
| 4256 * undefined state! | |
| 4257 */ | |
| 4258 static int | |
|
7833
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
4259 regmatch( |
|
11527
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patch 8.0.0646: the hlsearch test fails on fast systems
Christian Brabandt <cb@256bit.org>
parents:
11525
diff
changeset
|
4260 char_u *scan, /* Current node. */ |
|
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patch 8.0.0646: the hlsearch test fails on fast systems
Christian Brabandt <cb@256bit.org>
parents:
11525
diff
changeset
|
4261 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
|
4262 int *timed_out UNUSED) /* flag set on timeout or NULL */ |
| 7 | 4263 { |
| 180 | 4264 char_u *next; /* Next node. */ |
| 4265 int op; | |
| 4266 int c; | |
| 4267 regitem_T *rp; | |
| 4268 int no; | |
| 4269 int status; /* one of the RA_ values: */ | |
| 4270 #define RA_FAIL 1 /* something failed, abort */ | |
| 4271 #define RA_CONT 2 /* continue in inner loop */ | |
| 4272 #define RA_BREAK 3 /* break inner loop */ | |
| 4273 #define RA_MATCH 4 /* successful match */ | |
| 4274 #define RA_NOMATCH 5 /* didn't match */ | |
|
11527
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Christian Brabandt <cb@256bit.org>
parents:
11525
diff
changeset
|
4275 #ifdef FEAT_RELTIME |
|
ac20f71e8aa4
patch 8.0.0646: the hlsearch test fails on fast systems
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parents:
11525
diff
changeset
|
4276 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
|
4277 #endif |
| 270 | 4278 |
| 1520 | 4279 /* Make "regstack" and "backpos" empty. They are allocated and freed in |
| 4444 | 4280 * bt_regexec_both() to reduce malloc()/free() calls. */ |
| 270 | 4281 regstack.ga_len = 0; |
| 4282 backpos.ga_len = 0; | |
| 233 | 4283 |
| 180 | 4284 /* |
| 233 | 4285 * Repeat until "regstack" is empty. |
| 180 | 4286 */ |
| 4287 for (;;) | |
| 4288 { | |
| 5310 | 4289 /* Some patterns may take a long time to match, e.g., "\([a-z]\+\)\+Q". |
| 4290 * Allow interrupting them with CTRL-C. */ | |
| 7 | 4291 fast_breakcheck(); |
| 4292 | |
| 4293 #ifdef DEBUG | |
| 4294 if (scan != NULL && regnarrate) | |
| 4295 { | |
| 4444 | 4296 mch_errmsg((char *)regprop(scan)); |
| 7 | 4297 mch_errmsg("(\n"); |
| 4298 } | |
| 4299 #endif | |
| 180 | 4300 |
| 4301 /* | |
| 233 | 4302 * Repeat for items that can be matched sequentially, without using the |
| 180 | 4303 * regstack. |
| 4304 */ | |
| 4305 for (;;) | |
| 7 | 4306 { |
| 180 | 4307 if (got_int || scan == NULL) |
| 4308 { | |
| 4309 status = RA_FAIL; | |
| 4310 break; | |
| 4311 } | |
|
11527
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patch 8.0.0646: the hlsearch test fails on fast systems
Christian Brabandt <cb@256bit.org>
parents:
11525
diff
changeset
|
4312 #ifdef FEAT_RELTIME |
|
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patch 8.0.0646: the hlsearch test fails on fast systems
Christian Brabandt <cb@256bit.org>
parents:
11525
diff
changeset
|
4313 /* 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
|
4314 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
|
4315 { |
|
ac20f71e8aa4
patch 8.0.0646: the hlsearch test fails on fast systems
Christian Brabandt <cb@256bit.org>
parents:
11525
diff
changeset
|
4316 tm_count = 0; |
|
ac20f71e8aa4
patch 8.0.0646: the hlsearch test fails on fast systems
Christian Brabandt <cb@256bit.org>
parents:
11525
diff
changeset
|
4317 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
|
4318 { |
|
ac20f71e8aa4
patch 8.0.0646: the hlsearch test fails on fast systems
Christian Brabandt <cb@256bit.org>
parents:
11525
diff
changeset
|
4319 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
|
4320 *timed_out = TRUE; |
|
ac20f71e8aa4
patch 8.0.0646: the hlsearch test fails on fast systems
Christian Brabandt <cb@256bit.org>
parents:
11525
diff
changeset
|
4321 status = RA_FAIL; |
|
ac20f71e8aa4
patch 8.0.0646: the hlsearch test fails on fast systems
Christian Brabandt <cb@256bit.org>
parents:
11525
diff
changeset
|
4322 break; |
|
ac20f71e8aa4
patch 8.0.0646: the hlsearch test fails on fast systems
Christian Brabandt <cb@256bit.org>
parents:
11525
diff
changeset
|
4323 } |
|
ac20f71e8aa4
patch 8.0.0646: the hlsearch test fails on fast systems
Christian Brabandt <cb@256bit.org>
parents:
11525
diff
changeset
|
4324 } |
|
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Christian Brabandt <cb@256bit.org>
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11525
diff
changeset
|
4325 #endif |
| 180 | 4326 status = RA_CONT; |
| 4327 | |
| 7 | 4328 #ifdef DEBUG |
| 4329 if (regnarrate) | |
| 4330 { | |
| 4444 | 4331 mch_errmsg((char *)regprop(scan)); |
| 7 | 4332 mch_errmsg("...\n"); |
| 4333 # ifdef FEAT_SYN_HL | |
| 4334 if (re_extmatch_in != NULL) | |
| 4335 { | |
| 4336 int i; | |
| 4337 | |
| 4338 mch_errmsg(_("External submatches:\n")); | |
| 4339 for (i = 0; i < NSUBEXP; i++) | |
| 4340 { | |
| 4341 mch_errmsg(" \""); | |
| 4342 if (re_extmatch_in->matches[i] != NULL) | |
| 4444 | 4343 mch_errmsg((char *)re_extmatch_in->matches[i]); |
| 7 | 4344 mch_errmsg("\"\n"); |
| 4345 } | |
| 4346 } | |
| 4347 # endif | |
| 4348 } | |
| 4349 #endif | |
| 4350 next = regnext(scan); | |
| 4351 | |
| 4352 op = OP(scan); | |
| 4353 /* Check for character class with NL added. */ | |
|
10245
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commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
4354 if (!rex.reg_line_lbr && WITH_NL(op) && REG_MULTI |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
4355 && *reginput == NUL && reglnum <= rex.reg_maxline) |
| 7 | 4356 { |
| 4357 reg_nextline(); | |
| 4358 } | |
|
10245
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commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
4359 else if (rex.reg_line_lbr && WITH_NL(op) && *reginput == '\n') |
| 7 | 4360 { |
| 4361 ADVANCE_REGINPUT(); | |
| 4362 } | |
| 4363 else | |
| 4364 { | |
| 4365 if (WITH_NL(op)) | |
| 180 | 4366 op -= ADD_NL; |
| 7 | 4367 #ifdef FEAT_MBYTE |
| 4368 if (has_mbyte) | |
| 4369 c = (*mb_ptr2char)(reginput); | |
| 4370 else | |
| 4371 #endif | |
| 4372 c = *reginput; | |
| 4373 switch (op) | |
| 4374 { | |
| 4375 case BOL: | |
| 4376 if (reginput != regline) | |
| 180 | 4377 status = RA_NOMATCH; |
| 7 | 4378 break; |
| 4379 | |
| 4380 case EOL: | |
| 4381 if (c != NUL) | |
| 180 | 4382 status = RA_NOMATCH; |
| 7 | 4383 break; |
| 4384 | |
| 4385 case RE_BOF: | |
| 1458 | 4386 /* We're not at the beginning of the file when below the first |
| 4387 * line where we started, not at the start of the line or we | |
| 4388 * didn't start at the first line of the buffer. */ | |
| 7 | 4389 if (reglnum != 0 || reginput != regline |
|
10245
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commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
4390 || (REG_MULTI && rex.reg_firstlnum > 1)) |
| 180 | 4391 status = RA_NOMATCH; |
| 7 | 4392 break; |
| 4393 | |
| 4394 case RE_EOF: | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
4395 if (reglnum != rex.reg_maxline || c != NUL) |
| 180 | 4396 status = RA_NOMATCH; |
| 7 | 4397 break; |
| 4398 | |
| 4399 case CURSOR: | |
| 4400 /* 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
|
4401 * 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
|
4402 if (rex.reg_win == NULL |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
4403 || (reglnum + rex.reg_firstlnum |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
4404 != rex.reg_win->w_cursor.lnum) |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
4405 || ((colnr_T)(reginput - regline) |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
4406 != rex.reg_win->w_cursor.col)) |
| 180 | 4407 status = RA_NOMATCH; |
| 7 | 4408 break; |
| 4409 | |
| 639 | 4410 case RE_MARK: |
|
4732
0798b096bab3
updated for version 7.3.1113
Bram Moolenaar <bram@vim.org>
parents:
4730
diff
changeset
|
4411 /* Compare the mark position to the match position. */ |
| 639 | 4412 { |
| 4413 int mark = OPERAND(scan)[0]; | |
| 4414 int cmp = OPERAND(scan)[1]; | |
| 4415 pos_T *pos; | |
| 4416 | |
|
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commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
4417 pos = getmark_buf(rex.reg_buf, mark, FALSE); |
| 1148 | 4418 if (pos == NULL /* mark doesn't exist */ |
|
4732
0798b096bab3
updated for version 7.3.1113
Bram Moolenaar <bram@vim.org>
parents:
4730
diff
changeset
|
4419 || pos->lnum <= 0 /* mark isn't set in reg_buf */ |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
4420 || (pos->lnum == reglnum + rex.reg_firstlnum |
| 639 | 4421 ? (pos->col == (colnr_T)(reginput - regline) |
| 4422 ? (cmp == '<' || cmp == '>') | |
| 4423 : (pos->col < (colnr_T)(reginput - regline) | |
| 4424 ? cmp != '>' | |
| 4425 : cmp != '<')) | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
4426 : (pos->lnum < reglnum + rex.reg_firstlnum |
| 639 | 4427 ? cmp != '>' |
| 4428 : cmp != '<'))) | |
| 4429 status = RA_NOMATCH; | |
| 4430 } | |
| 4431 break; | |
| 4432 | |
| 4433 case RE_VISUAL: | |
|
4730
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4434 if (!reg_match_visual()) |
| 639 | 4435 status = RA_NOMATCH; |
| 4436 break; | |
| 4437 | |
| 7 | 4438 case RE_LNUM: |
|
10245
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commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
4439 if (!REG_MULTI || !re_num_cmp((long_u)(reglnum + rex.reg_firstlnum), |
| 7 | 4440 scan)) |
| 180 | 4441 status = RA_NOMATCH; |
| 7 | 4442 break; |
| 4443 | |
| 4444 case RE_COL: | |
| 4445 if (!re_num_cmp((long_u)(reginput - regline) + 1, scan)) | |
| 180 | 4446 status = RA_NOMATCH; |
| 7 | 4447 break; |
| 4448 | |
| 4449 case RE_VCOL: | |
| 4450 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
|
4451 rex.reg_win == NULL ? curwin : rex.reg_win, |
| 7 | 4452 regline, (colnr_T)(reginput - regline)) + 1, scan)) |
| 180 | 4453 status = RA_NOMATCH; |
| 7 | 4454 break; |
| 4455 | |
| 4456 case BOW: /* \<word; reginput points to w */ | |
| 4457 if (c == NUL) /* Can't match at end of line */ | |
| 180 | 4458 status = RA_NOMATCH; |
| 7 | 4459 #ifdef FEAT_MBYTE |
| 180 | 4460 else if (has_mbyte) |
| 7 | 4461 { |
| 4462 int this_class; | |
| 4463 | |
| 4464 /* Get class of current and previous char (if it exists). */ | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
4465 this_class = mb_get_class_buf(reginput, rex.reg_buf); |
| 7 | 4466 if (this_class <= 1) |
| 180 | 4467 status = RA_NOMATCH; /* not on a word at all */ |
| 4468 else if (reg_prev_class() == this_class) | |
| 4469 status = RA_NOMATCH; /* previous char is in same word */ | |
| 7 | 4470 } |
| 4471 #endif | |
| 4472 else | |
| 4473 { | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
4474 if (!vim_iswordc_buf(c, rex.reg_buf) || (reginput > regline |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
4475 && vim_iswordc_buf(reginput[-1], rex.reg_buf))) |
| 180 | 4476 status = RA_NOMATCH; |
| 7 | 4477 } |
| 4478 break; | |
| 4479 | |
| 4480 case EOW: /* word\>; reginput points after d */ | |
| 4481 if (reginput == regline) /* Can't match at start of line */ | |
| 180 | 4482 status = RA_NOMATCH; |
| 7 | 4483 #ifdef FEAT_MBYTE |
| 180 | 4484 else if (has_mbyte) |
| 7 | 4485 { |
| 4486 int this_class, prev_class; | |
| 4487 | |
| 4488 /* Get class of current and previous char (if it exists). */ | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
4489 this_class = mb_get_class_buf(reginput, rex.reg_buf); |
| 7 | 4490 prev_class = reg_prev_class(); |
| 180 | 4491 if (this_class == prev_class |
| 4492 || prev_class == 0 || prev_class == 1) | |
| 4493 status = RA_NOMATCH; | |
| 7 | 4494 } |
| 180 | 4495 #endif |
| 7 | 4496 else |
| 4497 { | |
|
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d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
4498 if (!vim_iswordc_buf(reginput[-1], rex.reg_buf) |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
4499 || (reginput[0] != NUL |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
4500 && vim_iswordc_buf(c, rex.reg_buf))) |
| 180 | 4501 status = RA_NOMATCH; |
| 7 | 4502 } |
| 4503 break; /* Matched with EOW */ | |
| 4504 | |
| 4505 case ANY: | |
| 4084 | 4506 /* ANY does not match new lines. */ |
| 7 | 4507 if (c == NUL) |
| 180 | 4508 status = RA_NOMATCH; |
| 4509 else | |
| 4510 ADVANCE_REGINPUT(); | |
| 7 | 4511 break; |
| 4512 | |
| 4513 case IDENT: | |
| 4514 if (!vim_isIDc(c)) | |
| 180 | 4515 status = RA_NOMATCH; |
| 4516 else | |
| 4517 ADVANCE_REGINPUT(); | |
| 7 | 4518 break; |
| 4519 | |
| 4520 case SIDENT: | |
| 4521 if (VIM_ISDIGIT(*reginput) || !vim_isIDc(c)) | |
| 180 | 4522 status = RA_NOMATCH; |
| 4523 else | |
| 4524 ADVANCE_REGINPUT(); | |
| 7 | 4525 break; |
| 4526 | |
| 4527 case KWORD: | |
|
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d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
4528 if (!vim_iswordp_buf(reginput, rex.reg_buf)) |
| 180 | 4529 status = RA_NOMATCH; |
| 4530 else | |
| 4531 ADVANCE_REGINPUT(); | |
| 7 | 4532 break; |
| 4533 | |
| 4534 case SKWORD: | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
4535 if (VIM_ISDIGIT(*reginput) |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
4536 || !vim_iswordp_buf(reginput, rex.reg_buf)) |
| 180 | 4537 status = RA_NOMATCH; |
| 4538 else | |
| 4539 ADVANCE_REGINPUT(); | |
| 7 | 4540 break; |
| 4541 | |
| 4542 case FNAME: | |
| 4543 if (!vim_isfilec(c)) | |
| 180 | 4544 status = RA_NOMATCH; |
| 4545 else | |
| 4546 ADVANCE_REGINPUT(); | |
| 7 | 4547 break; |
| 4548 | |
| 4549 case SFNAME: | |
| 4550 if (VIM_ISDIGIT(*reginput) || !vim_isfilec(c)) | |
| 180 | 4551 status = RA_NOMATCH; |
| 4552 else | |
| 4553 ADVANCE_REGINPUT(); | |
| 7 | 4554 break; |
| 4555 | |
| 4556 case PRINT: | |
|
5221
9982ec574beb
updated for version 7.4a.036
Bram Moolenaar <bram@vim.org>
parents:
4901
diff
changeset
|
4557 if (!vim_isprintc(PTR2CHAR(reginput))) |
| 180 | 4558 status = RA_NOMATCH; |
| 4559 else | |
| 4560 ADVANCE_REGINPUT(); | |
| 7 | 4561 break; |
| 4562 | |
| 4563 case SPRINT: | |
|
5221
9982ec574beb
updated for version 7.4a.036
Bram Moolenaar <bram@vim.org>
parents:
4901
diff
changeset
|
4564 if (VIM_ISDIGIT(*reginput) || !vim_isprintc(PTR2CHAR(reginput))) |
| 180 | 4565 status = RA_NOMATCH; |
| 4566 else | |
| 4567 ADVANCE_REGINPUT(); | |
| 7 | 4568 break; |
| 4569 | |
| 4570 case WHITE: | |
|
11129
f4ea50924c6d
patch 8.0.0452: some macros are in lower case
Christian Brabandt <cb@256bit.org>
parents:
11127
diff
changeset
|
4571 if (!VIM_ISWHITE(c)) |
| 180 | 4572 status = RA_NOMATCH; |
| 4573 else | |
| 4574 ADVANCE_REGINPUT(); | |
| 7 | 4575 break; |
| 4576 | |
| 4577 case NWHITE: | |
|
11129
f4ea50924c6d
patch 8.0.0452: some macros are in lower case
Christian Brabandt <cb@256bit.org>
parents:
11127
diff
changeset
|
4578 if (c == NUL || VIM_ISWHITE(c)) |
| 180 | 4579 status = RA_NOMATCH; |
| 4580 else | |
| 4581 ADVANCE_REGINPUT(); | |
| 7 | 4582 break; |
| 4583 | |
| 4584 case DIGIT: | |
| 4585 if (!ri_digit(c)) | |
| 180 | 4586 status = RA_NOMATCH; |
| 4587 else | |
| 4588 ADVANCE_REGINPUT(); | |
| 7 | 4589 break; |
| 4590 | |
| 4591 case NDIGIT: | |
| 4592 if (c == NUL || ri_digit(c)) | |
| 180 | 4593 status = RA_NOMATCH; |
| 4594 else | |
| 4595 ADVANCE_REGINPUT(); | |
| 7 | 4596 break; |
| 4597 | |
| 4598 case HEX: | |
| 4599 if (!ri_hex(c)) | |
| 180 | 4600 status = RA_NOMATCH; |
| 4601 else | |
| 4602 ADVANCE_REGINPUT(); | |
| 7 | 4603 break; |
| 4604 | |
| 4605 case NHEX: | |
| 4606 if (c == NUL || ri_hex(c)) | |
| 180 | 4607 status = RA_NOMATCH; |
| 4608 else | |
| 4609 ADVANCE_REGINPUT(); | |
| 7 | 4610 break; |
| 4611 | |
| 4612 case OCTAL: | |
| 4613 if (!ri_octal(c)) | |
| 180 | 4614 status = RA_NOMATCH; |
| 4615 else | |
| 4616 ADVANCE_REGINPUT(); | |
| 7 | 4617 break; |
| 4618 | |
| 4619 case NOCTAL: | |
| 4620 if (c == NUL || ri_octal(c)) | |
| 180 | 4621 status = RA_NOMATCH; |
| 4622 else | |
| 4623 ADVANCE_REGINPUT(); | |
| 7 | 4624 break; |
| 4625 | |
| 4626 case WORD: | |
| 4627 if (!ri_word(c)) | |
| 180 | 4628 status = RA_NOMATCH; |
| 4629 else | |
| 4630 ADVANCE_REGINPUT(); | |
| 7 | 4631 break; |
| 4632 | |
| 4633 case NWORD: | |
| 4634 if (c == NUL || ri_word(c)) | |
| 180 | 4635 status = RA_NOMATCH; |
| 4636 else | |
| 4637 ADVANCE_REGINPUT(); | |
| 7 | 4638 break; |
| 4639 | |
| 4640 case HEAD: | |
| 4641 if (!ri_head(c)) | |
| 180 | 4642 status = RA_NOMATCH; |
| 4643 else | |
| 4644 ADVANCE_REGINPUT(); | |
| 7 | 4645 break; |
| 4646 | |
| 4647 case NHEAD: | |
| 4648 if (c == NUL || ri_head(c)) | |
| 180 | 4649 status = RA_NOMATCH; |
| 4650 else | |
| 4651 ADVANCE_REGINPUT(); | |
| 7 | 4652 break; |
| 4653 | |
| 4654 case ALPHA: | |
| 4655 if (!ri_alpha(c)) | |
| 180 | 4656 status = RA_NOMATCH; |
| 4657 else | |
| 4658 ADVANCE_REGINPUT(); | |
| 7 | 4659 break; |
| 4660 | |
| 4661 case NALPHA: | |
| 4662 if (c == NUL || ri_alpha(c)) | |
| 180 | 4663 status = RA_NOMATCH; |
| 4664 else | |
| 4665 ADVANCE_REGINPUT(); | |
| 7 | 4666 break; |
| 4667 | |
| 4668 case LOWER: | |
| 4669 if (!ri_lower(c)) | |
| 180 | 4670 status = RA_NOMATCH; |
| 4671 else | |
| 4672 ADVANCE_REGINPUT(); | |
| 7 | 4673 break; |
| 4674 | |
| 4675 case NLOWER: | |
| 4676 if (c == NUL || ri_lower(c)) | |
| 180 | 4677 status = RA_NOMATCH; |
| 4678 else | |
| 4679 ADVANCE_REGINPUT(); | |
| 7 | 4680 break; |
| 4681 | |
| 4682 case UPPER: | |
| 4683 if (!ri_upper(c)) | |
| 180 | 4684 status = RA_NOMATCH; |
| 4685 else | |
| 4686 ADVANCE_REGINPUT(); | |
| 7 | 4687 break; |
| 4688 | |
| 4689 case NUPPER: | |
| 4690 if (c == NUL || ri_upper(c)) | |
| 180 | 4691 status = RA_NOMATCH; |
| 4692 else | |
| 4693 ADVANCE_REGINPUT(); | |
| 7 | 4694 break; |
| 4695 | |
| 4696 case EXACTLY: | |
| 4697 { | |
| 4698 int len; | |
| 4699 char_u *opnd; | |
| 4700 | |
| 4701 opnd = OPERAND(scan); | |
| 4702 /* Inline the first byte, for speed. */ | |
| 4703 if (*opnd != *reginput | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
4704 && (!rex.reg_ic || ( |
| 7 | 4705 #ifdef FEAT_MBYTE |
| 4706 !enc_utf8 && | |
| 4707 #endif | |
| 1347 | 4708 MB_TOLOWER(*opnd) != MB_TOLOWER(*reginput)))) |
| 180 | 4709 status = RA_NOMATCH; |
| 4710 else if (*opnd == NUL) | |
| 7 | 4711 { |
| 4712 /* match empty string always works; happens when "~" is | |
| 4713 * empty. */ | |
| 4714 } | |
| 5899 | 4715 else |
| 4716 { | |
| 4717 if (opnd[1] == NUL | |
| 7 | 4718 #ifdef FEAT_MBYTE |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
4719 && !(enc_utf8 && rex.reg_ic) |
| 7 | 4720 #endif |
| 4721 ) | |
| 5899 | 4722 { |
| 4723 len = 1; /* matched a single byte above */ | |
| 4724 } | |
| 4725 else | |
| 4726 { | |
| 4727 /* Need to match first byte again for multi-byte. */ | |
| 4728 len = (int)STRLEN(opnd); | |
| 4729 if (cstrncmp(opnd, reginput, &len) != 0) | |
| 4730 status = RA_NOMATCH; | |
| 4731 } | |
| 7 | 4732 #ifdef FEAT_MBYTE |
| 5901 | 4733 /* Check for following composing character, unless %C |
| 4734 * follows (skips over all composing chars). */ | |
| 5899 | 4735 if (status != RA_NOMATCH |
| 4736 && enc_utf8 | |
| 4737 && UTF_COMPOSINGLIKE(reginput, reginput + len) | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
4738 && !rex.reg_icombine |
| 5901 | 4739 && OP(next) != RE_COMPOSING) |
| 7 | 4740 { |
| 4741 /* raaron: This code makes a composing character get | |
| 4742 * ignored, which is the correct behavior (sometimes) | |
| 4743 * for voweled Hebrew texts. */ | |
| 5899 | 4744 status = RA_NOMATCH; |
| 7 | 4745 } |
| 180 | 4746 #endif |
| 5899 | 4747 if (status != RA_NOMATCH) |
| 180 | 4748 reginput += len; |
| 7 | 4749 } |
| 4750 } | |
| 4751 break; | |
| 4752 | |
| 4753 case ANYOF: | |
| 4754 case ANYBUT: | |
| 4755 if (c == NUL) | |
| 180 | 4756 status = RA_NOMATCH; |
| 4757 else if ((cstrchr(OPERAND(scan), c) == NULL) == (op == ANYOF)) | |
| 4758 status = RA_NOMATCH; | |
| 4759 else | |
| 4760 ADVANCE_REGINPUT(); | |
| 7 | 4761 break; |
| 4762 | |
| 4763 #ifdef FEAT_MBYTE | |
| 4764 case MULTIBYTECODE: | |
| 4765 if (has_mbyte) | |
| 4766 { | |
| 4767 int i, len; | |
| 4768 char_u *opnd; | |
| 944 | 4769 int opndc = 0, inpc; |
| 7 | 4770 |
| 4771 opnd = OPERAND(scan); | |
| 4772 /* Safety check (just in case 'encoding' was changed since | |
| 4773 * compiling the program). */ | |
| 474 | 4774 if ((len = (*mb_ptr2len)(opnd)) < 2) |
| 180 | 4775 { |
| 4776 status = RA_NOMATCH; | |
| 4777 break; | |
| 4778 } | |
| 714 | 4779 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
|
4780 opndc = utf_ptr2char(opnd); |
| 714 | 4781 if (enc_utf8 && utf_iscomposing(opndc)) |
| 4782 { | |
| 4783 /* When only a composing char is given match at any | |
| 4784 * position where that composing char appears. */ | |
| 4785 status = RA_NOMATCH; | |
| 6723 | 4786 for (i = 0; reginput[i] != NUL; |
| 4787 i += utf_ptr2len(reginput + i)) | |
| 180 | 4788 { |
|
11269
121d29004998
patch 8.0.0520: using a function pointer while the function is known
Christian Brabandt <cb@256bit.org>
parents:
11267
diff
changeset
|
4789 inpc = utf_ptr2char(reginput + i); |
| 714 | 4790 if (!utf_iscomposing(inpc)) |
| 4791 { | |
| 4792 if (i > 0) | |
| 4793 break; | |
| 4794 } | |
| 4795 else if (opndc == inpc) | |
| 4796 { | |
| 4797 /* Include all following composing chars. */ | |
|
11269
121d29004998
patch 8.0.0520: using a function pointer while the function is known
Christian Brabandt <cb@256bit.org>
parents:
11267
diff
changeset
|
4798 len = i + utfc_ptr2len(reginput + i); |
| 714 | 4799 status = RA_MATCH; |
| 4800 break; | |
| 4801 } | |
| 180 | 4802 } |
| 714 | 4803 } |
| 4804 else | |
| 4805 for (i = 0; i < len; ++i) | |
| 4806 if (opnd[i] != reginput[i]) | |
| 4807 { | |
| 4808 status = RA_NOMATCH; | |
| 4809 break; | |
| 4810 } | |
| 7 | 4811 reginput += len; |
| 4812 } | |
| 4813 else | |
| 180 | 4814 status = RA_NOMATCH; |
| 7 | 4815 break; |
| 4816 #endif | |
| 5901 | 4817 case RE_COMPOSING: |
| 4818 #ifdef FEAT_MBYTE | |
| 4819 if (enc_utf8) | |
| 4820 { | |
| 4821 /* Skip composing characters. */ | |
| 4822 while (utf_iscomposing(utf_ptr2char(reginput))) | |
|
11127
506f5d8b7d8b
patch 8.0.0451: some macros are in lower case
Christian Brabandt <cb@256bit.org>
parents:
11121
diff
changeset
|
4823 MB_CPTR_ADV(reginput); |
| 5901 | 4824 } |
| 4825 #endif | |
| 4826 break; | |
| 7 | 4827 |
| 4828 case NOTHING: | |
| 4829 break; | |
| 4830 | |
| 4831 case BACK: | |
| 233 | 4832 { |
| 4833 int i; | |
| 4834 backpos_T *bp; | |
| 4835 | |
| 4836 /* | |
| 4837 * When we run into BACK we need to check if we don't keep | |
| 4838 * looping without matching any input. The second and later | |
| 4839 * times a BACK is encountered it fails if the input is still | |
| 4840 * at the same position as the previous time. | |
| 4841 * The positions are stored in "backpos" and found by the | |
| 4842 * current value of "scan", the position in the RE program. | |
| 4843 */ | |
| 4844 bp = (backpos_T *)backpos.ga_data; | |
| 4845 for (i = 0; i < backpos.ga_len; ++i) | |
| 4846 if (bp[i].bp_scan == scan) | |
| 4847 break; | |
| 4848 if (i == backpos.ga_len) | |
| 4849 { | |
| 4850 /* First time at this BACK, make room to store the pos. */ | |
| 4851 if (ga_grow(&backpos, 1) == FAIL) | |
| 4852 status = RA_FAIL; | |
| 4853 else | |
| 4854 { | |
| 4855 /* get "ga_data" again, it may have changed */ | |
| 4856 bp = (backpos_T *)backpos.ga_data; | |
| 4857 bp[i].bp_scan = scan; | |
| 4858 ++backpos.ga_len; | |
| 4859 } | |
| 4860 } | |
| 4861 else if (reg_save_equal(&bp[i].bp_pos)) | |
| 4862 /* Still at same position as last time, fail. */ | |
| 4863 status = RA_NOMATCH; | |
| 4864 | |
| 4865 if (status != RA_FAIL && status != RA_NOMATCH) | |
| 4866 reg_save(&bp[i].bp_pos, &backpos); | |
| 4867 } | |
| 179 | 4868 break; |
| 4869 | |
| 7 | 4870 case MOPEN + 0: /* Match start: \zs */ |
| 4871 case MOPEN + 1: /* \( */ | |
| 4872 case MOPEN + 2: | |
| 4873 case MOPEN + 3: | |
| 4874 case MOPEN + 4: | |
| 4875 case MOPEN + 5: | |
| 4876 case MOPEN + 6: | |
| 4877 case MOPEN + 7: | |
| 4878 case MOPEN + 8: | |
| 4879 case MOPEN + 9: | |
| 4880 { | |
| 4881 no = op - MOPEN; | |
| 4882 cleanup_subexpr(); | |
| 270 | 4883 rp = regstack_push(RS_MOPEN, scan); |
| 180 | 4884 if (rp == NULL) |
| 4885 status = RA_FAIL; | |
| 4886 else | |
| 4887 { | |
| 4888 rp->rs_no = no; | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
4889 save_se(&rp->rs_un.sesave, &rex.reg_startpos[no], |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
4890 &rex.reg_startp[no]); |
| 180 | 4891 /* We simply continue and handle the result when done. */ |
| 4892 } | |
| 7 | 4893 } |
| 180 | 4894 break; |
| 7 | 4895 |
| 4896 case NOPEN: /* \%( */ | |
| 4897 case NCLOSE: /* \) after \%( */ | |
| 270 | 4898 if (regstack_push(RS_NOPEN, scan) == NULL) |
| 180 | 4899 status = RA_FAIL; |
| 4900 /* We simply continue and handle the result when done. */ | |
| 4901 break; | |
| 7 | 4902 |
| 4903 #ifdef FEAT_SYN_HL | |
| 4904 case ZOPEN + 1: | |
| 4905 case ZOPEN + 2: | |
| 4906 case ZOPEN + 3: | |
| 4907 case ZOPEN + 4: | |
| 4908 case ZOPEN + 5: | |
| 4909 case ZOPEN + 6: | |
| 4910 case ZOPEN + 7: | |
| 4911 case ZOPEN + 8: | |
| 4912 case ZOPEN + 9: | |
| 4913 { | |
| 4914 no = op - ZOPEN; | |
| 4915 cleanup_zsubexpr(); | |
| 270 | 4916 rp = regstack_push(RS_ZOPEN, scan); |
| 180 | 4917 if (rp == NULL) |
| 4918 status = RA_FAIL; | |
| 4919 else | |
| 4920 { | |
| 4921 rp->rs_no = no; | |
| 4922 save_se(&rp->rs_un.sesave, ®_startzpos[no], | |
| 4923 ®_startzp[no]); | |
| 4924 /* We simply continue and handle the result when done. */ | |
| 4925 } | |
| 7 | 4926 } |
| 180 | 4927 break; |
| 7 | 4928 #endif |
| 4929 | |
| 4930 case MCLOSE + 0: /* Match end: \ze */ | |
| 4931 case MCLOSE + 1: /* \) */ | |
| 4932 case MCLOSE + 2: | |
| 4933 case MCLOSE + 3: | |
| 4934 case MCLOSE + 4: | |
| 4935 case MCLOSE + 5: | |
| 4936 case MCLOSE + 6: | |
| 4937 case MCLOSE + 7: | |
| 4938 case MCLOSE + 8: | |
| 4939 case MCLOSE + 9: | |
| 4940 { | |
| 4941 no = op - MCLOSE; | |
| 4942 cleanup_subexpr(); | |
| 270 | 4943 rp = regstack_push(RS_MCLOSE, scan); |
| 180 | 4944 if (rp == NULL) |
| 4945 status = RA_FAIL; | |
| 4946 else | |
| 4947 { | |
| 4948 rp->rs_no = no; | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
4949 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
|
4950 &rex.reg_endp[no]); |
| 180 | 4951 /* We simply continue and handle the result when done. */ |
| 4952 } | |
| 7 | 4953 } |
| 180 | 4954 break; |
| 7 | 4955 |
| 4956 #ifdef FEAT_SYN_HL | |
| 4957 case ZCLOSE + 1: /* \) after \z( */ | |
| 4958 case ZCLOSE + 2: | |
| 4959 case ZCLOSE + 3: | |
| 4960 case ZCLOSE + 4: | |
| 4961 case ZCLOSE + 5: | |
| 4962 case ZCLOSE + 6: | |
| 4963 case ZCLOSE + 7: | |
| 4964 case ZCLOSE + 8: | |
| 4965 case ZCLOSE + 9: | |
| 4966 { | |
| 4967 no = op - ZCLOSE; | |
| 4968 cleanup_zsubexpr(); | |
| 270 | 4969 rp = regstack_push(RS_ZCLOSE, scan); |
| 180 | 4970 if (rp == NULL) |
| 4971 status = RA_FAIL; | |
| 4972 else | |
| 4973 { | |
| 4974 rp->rs_no = no; | |
| 4975 save_se(&rp->rs_un.sesave, ®_endzpos[no], | |
| 4976 ®_endzp[no]); | |
| 4977 /* We simply continue and handle the result when done. */ | |
| 4978 } | |
| 7 | 4979 } |
| 180 | 4980 break; |
| 7 | 4981 #endif |
| 4982 | |
| 4983 case BACKREF + 1: | |
| 4984 case BACKREF + 2: | |
| 4985 case BACKREF + 3: | |
| 4986 case BACKREF + 4: | |
| 4987 case BACKREF + 5: | |
| 4988 case BACKREF + 6: | |
| 4989 case BACKREF + 7: | |
| 4990 case BACKREF + 8: | |
| 4991 case BACKREF + 9: | |
| 4992 { | |
| 4993 int len; | |
| 4994 | |
| 4995 no = op - BACKREF; | |
| 4996 cleanup_subexpr(); | |
| 4997 if (!REG_MULTI) /* Single-line regexp */ | |
| 4998 { | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
4999 if (rex.reg_startp[no] == NULL || rex.reg_endp[no] == NULL) |
| 7 | 5000 { |
| 5001 /* Backref was not set: Match an empty string. */ | |
| 5002 len = 0; | |
| 5003 } | |
| 5004 else | |
| 5005 { | |
| 5006 /* Compare current input with back-ref in the same | |
| 5007 * line. */ | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
5008 len = (int)(rex.reg_endp[no] - rex.reg_startp[no]); |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
5009 if (cstrncmp(rex.reg_startp[no], reginput, &len) != 0) |
| 180 | 5010 status = RA_NOMATCH; |
| 7 | 5011 } |
| 5012 } | |
| 5013 else /* Multi-line regexp */ | |
| 5014 { | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
5015 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
|
5016 || rex.reg_endpos[no].lnum < 0) |
| 7 | 5017 { |
| 5018 /* Backref was not set: Match an empty string. */ | |
| 5019 len = 0; | |
| 5020 } | |
| 5021 else | |
| 5022 { | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
5023 if (rex.reg_startpos[no].lnum == reglnum |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
5024 && rex.reg_endpos[no].lnum == reglnum) |
| 7 | 5025 { |
| 5026 /* 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
|
5027 len = rex.reg_endpos[no].col |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
5028 - rex.reg_startpos[no].col; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
5029 if (cstrncmp(regline + rex.reg_startpos[no].col, |
| 7 | 5030 reginput, &len) != 0) |
| 180 | 5031 status = RA_NOMATCH; |
| 7 | 5032 } |
| 5033 else | |
| 5034 { | |
| 5035 /* Messy situation: Need to compare between two | |
| 5036 * lines. */ | |
|
4901
56fbf60e9476
updated for version 7.3.1196
Bram Moolenaar <bram@vim.org>
parents:
4899
diff
changeset
|
5037 int r = match_with_backref( |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
5038 rex.reg_startpos[no].lnum, |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
5039 rex.reg_startpos[no].col, |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
5040 rex.reg_endpos[no].lnum, |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
5041 rex.reg_endpos[no].col, |
|
4899
4837fd61be52
updated for version 7.3.1195
Bram Moolenaar <bram@vim.org>
parents:
4891
diff
changeset
|
5042 &len); |
|
4901
56fbf60e9476
updated for version 7.3.1196
Bram Moolenaar <bram@vim.org>
parents:
4899
diff
changeset
|
5043 |
|
56fbf60e9476
updated for version 7.3.1196
Bram Moolenaar <bram@vim.org>
parents:
4899
diff
changeset
|
5044 if (r != RA_MATCH) |
|
56fbf60e9476
updated for version 7.3.1196
Bram Moolenaar <bram@vim.org>
parents:
4899
diff
changeset
|
5045 status = r; |
| 7 | 5046 } |
| 5047 } | |
| 5048 } | |
| 5049 | |
| 5050 /* Matched the backref, skip over it. */ | |
| 5051 reginput += len; | |
| 5052 } | |
| 5053 break; | |
| 5054 | |
| 5055 #ifdef FEAT_SYN_HL | |
| 5056 case ZREF + 1: | |
| 5057 case ZREF + 2: | |
| 5058 case ZREF + 3: | |
| 5059 case ZREF + 4: | |
| 5060 case ZREF + 5: | |
| 5061 case ZREF + 6: | |
| 5062 case ZREF + 7: | |
| 5063 case ZREF + 8: | |
| 5064 case ZREF + 9: | |
| 5065 { | |
| 5066 int len; | |
| 5067 | |
| 5068 cleanup_zsubexpr(); | |
| 5069 no = op - ZREF; | |
| 5070 if (re_extmatch_in != NULL | |
| 5071 && re_extmatch_in->matches[no] != NULL) | |
| 5072 { | |
| 5073 len = (int)STRLEN(re_extmatch_in->matches[no]); | |
| 5074 if (cstrncmp(re_extmatch_in->matches[no], | |
| 5075 reginput, &len) != 0) | |
| 180 | 5076 status = RA_NOMATCH; |
| 5077 else | |
| 5078 reginput += len; | |
| 7 | 5079 } |
| 5080 else | |
| 5081 { | |
| 5082 /* Backref was not set: Match an empty string. */ | |
| 5083 } | |
| 5084 } | |
| 5085 break; | |
| 5086 #endif | |
| 5087 | |
| 5088 case BRANCH: | |
| 5089 { | |
| 5090 if (OP(next) != BRANCH) /* No choice. */ | |
| 5091 next = OPERAND(scan); /* Avoid recursion. */ | |
| 5092 else | |
| 5093 { | |
| 270 | 5094 rp = regstack_push(RS_BRANCH, scan); |
| 180 | 5095 if (rp == NULL) |
| 5096 status = RA_FAIL; | |
| 5097 else | |
| 5098 status = RA_BREAK; /* rest is below */ | |
| 7 | 5099 } |
| 5100 } | |
| 5101 break; | |
| 5102 | |
| 5103 case BRACE_LIMITS: | |
| 5104 { | |
| 5105 if (OP(next) == BRACE_SIMPLE) | |
| 5106 { | |
| 5107 bl_minval = OPERAND_MIN(scan); | |
| 5108 bl_maxval = OPERAND_MAX(scan); | |
| 5109 } | |
| 5110 else if (OP(next) >= BRACE_COMPLEX | |
| 5111 && OP(next) < BRACE_COMPLEX + 10) | |
| 5112 { | |
| 5113 no = OP(next) - BRACE_COMPLEX; | |
| 5114 brace_min[no] = OPERAND_MIN(scan); | |
| 5115 brace_max[no] = OPERAND_MAX(scan); | |
| 5116 brace_count[no] = 0; | |
| 5117 } | |
| 5118 else | |
| 5119 { | |
|
10359
66f1b5bf3fa6
commit https://github.com/vim/vim/commit/95f096030ed1a8afea028f2ea295d6f6a70f466f
Christian Brabandt <cb@256bit.org>
parents:
10245
diff
changeset
|
5120 internal_error("BRACE_LIMITS"); |
| 180 | 5121 status = RA_FAIL; |
| 7 | 5122 } |
| 5123 } | |
| 5124 break; | |
| 5125 | |
| 5126 case BRACE_COMPLEX + 0: | |
| 5127 case BRACE_COMPLEX + 1: | |
| 5128 case BRACE_COMPLEX + 2: | |
| 5129 case BRACE_COMPLEX + 3: | |
| 5130 case BRACE_COMPLEX + 4: | |
| 5131 case BRACE_COMPLEX + 5: | |
| 5132 case BRACE_COMPLEX + 6: | |
| 5133 case BRACE_COMPLEX + 7: | |
| 5134 case BRACE_COMPLEX + 8: | |
| 5135 case BRACE_COMPLEX + 9: | |
| 5136 { | |
| 5137 no = op - BRACE_COMPLEX; | |
| 5138 ++brace_count[no]; | |
| 5139 | |
| 5140 /* If not matched enough times yet, try one more */ | |
| 5141 if (brace_count[no] <= (brace_min[no] <= brace_max[no] | |
| 180 | 5142 ? brace_min[no] : brace_max[no])) |
| 7 | 5143 { |
| 270 | 5144 rp = regstack_push(RS_BRCPLX_MORE, scan); |
| 180 | 5145 if (rp == NULL) |
| 5146 status = RA_FAIL; | |
| 5147 else | |
| 5148 { | |
| 5149 rp->rs_no = no; | |
| 233 | 5150 reg_save(&rp->rs_un.regsave, &backpos); |
| 180 | 5151 next = OPERAND(scan); |
| 5152 /* We continue and handle the result when done. */ | |
| 5153 } | |
| 5154 break; | |
| 7 | 5155 } |
| 5156 | |
| 5157 /* If matched enough times, may try matching some more */ | |
| 5158 if (brace_min[no] <= brace_max[no]) | |
| 5159 { | |
| 5160 /* Range is the normal way around, use longest match */ | |
| 5161 if (brace_count[no] <= brace_max[no]) | |
| 5162 { | |
| 270 | 5163 rp = regstack_push(RS_BRCPLX_LONG, scan); |
| 180 | 5164 if (rp == NULL) |
| 5165 status = RA_FAIL; | |
| 5166 else | |
| 5167 { | |
| 5168 rp->rs_no = no; | |
| 233 | 5169 reg_save(&rp->rs_un.regsave, &backpos); |
| 180 | 5170 next = OPERAND(scan); |
| 5171 /* We continue and handle the result when done. */ | |
| 5172 } | |
| 7 | 5173 } |
| 5174 } | |
| 5175 else | |
| 5176 { | |
| 5177 /* Range is backwards, use shortest match first */ | |
| 5178 if (brace_count[no] <= brace_min[no]) | |
| 5179 { | |
| 270 | 5180 rp = regstack_push(RS_BRCPLX_SHORT, scan); |
| 180 | 5181 if (rp == NULL) |
| 5182 status = RA_FAIL; | |
| 5183 else | |
| 5184 { | |
| 233 | 5185 reg_save(&rp->rs_un.regsave, &backpos); |
| 180 | 5186 /* We continue and handle the result when done. */ |
| 5187 } | |
| 7 | 5188 } |
| 5189 } | |
| 5190 } | |
| 5191 break; | |
| 5192 | |
| 5193 case BRACE_SIMPLE: | |
| 5194 case STAR: | |
| 5195 case PLUS: | |
| 5196 { | |
| 180 | 5197 regstar_T rst; |
| 7 | 5198 |
| 5199 /* | |
| 5200 * Lookahead to avoid useless match attempts when we know | |
| 5201 * what character comes next. | |
| 5202 */ | |
| 5203 if (OP(next) == EXACTLY) | |
| 5204 { | |
| 180 | 5205 rst.nextb = *OPERAND(next); |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
5206 if (rex.reg_ic) |
| 7 | 5207 { |
| 1347 | 5208 if (MB_ISUPPER(rst.nextb)) |
| 5209 rst.nextb_ic = MB_TOLOWER(rst.nextb); | |
| 7 | 5210 else |
| 1347 | 5211 rst.nextb_ic = MB_TOUPPER(rst.nextb); |
| 7 | 5212 } |
| 5213 else | |
| 180 | 5214 rst.nextb_ic = rst.nextb; |
| 7 | 5215 } |
| 5216 else | |
| 5217 { | |
| 180 | 5218 rst.nextb = NUL; |
| 5219 rst.nextb_ic = NUL; | |
| 7 | 5220 } |
| 5221 if (op != BRACE_SIMPLE) | |
| 5222 { | |
| 180 | 5223 rst.minval = (op == STAR) ? 0 : 1; |
| 5224 rst.maxval = MAX_LIMIT; | |
| 7 | 5225 } |
| 5226 else | |
| 5227 { | |
| 180 | 5228 rst.minval = bl_minval; |
| 5229 rst.maxval = bl_maxval; | |
| 7 | 5230 } |
| 5231 | |
| 5232 /* | |
| 5233 * When maxval > minval, try matching as much as possible, up | |
| 5234 * to maxval. When maxval < minval, try matching at least the | |
| 5235 * minimal number (since the range is backwards, that's also | |
| 5236 * maxval!). | |
| 5237 */ | |
| 180 | 5238 rst.count = regrepeat(OPERAND(scan), rst.maxval); |
| 7 | 5239 if (got_int) |
| 180 | 5240 { |
| 5241 status = RA_FAIL; | |
| 5242 break; | |
| 5243 } | |
| 5244 if (rst.minval <= rst.maxval | |
| 5245 ? rst.count >= rst.minval : rst.count >= rst.maxval) | |
| 7 | 5246 { |
| 180 | 5247 /* It could match. Prepare for trying to match what |
| 5248 * follows. The code is below. Parameters are stored in | |
| 5249 * a regstar_T on the regstack. */ | |
| 212 | 5250 if ((long)((unsigned)regstack.ga_len >> 10) >= p_mmp) |
| 189 | 5251 { |
| 5252 EMSG(_(e_maxmempat)); | |
| 5253 status = RA_FAIL; | |
| 5254 } | |
| 5255 else if (ga_grow(®stack, sizeof(regstar_T)) == FAIL) | |
| 180 | 5256 status = RA_FAIL; |
| 5257 else | |
| 7 | 5258 { |
| 180 | 5259 regstack.ga_len += sizeof(regstar_T); |
| 270 | 5260 rp = regstack_push(rst.minval <= rst.maxval |
| 233 | 5261 ? RS_STAR_LONG : RS_STAR_SHORT, scan); |
| 180 | 5262 if (rp == NULL) |
| 5263 status = RA_FAIL; | |
| 5264 else | |
| 7 | 5265 { |
| 180 | 5266 *(((regstar_T *)rp) - 1) = rst; |
| 5267 status = RA_BREAK; /* skip the restore bits */ | |
| 7 | 5268 } |
| 5269 } | |
| 5270 } | |
| 5271 else | |
| 180 | 5272 status = RA_NOMATCH; |
| 5273 | |
| 7 | 5274 } |
| 180 | 5275 break; |
| 7 | 5276 |
| 5277 case NOMATCH: | |
| 5278 case MATCH: | |
| 5279 case SUBPAT: | |
| 270 | 5280 rp = regstack_push(RS_NOMATCH, scan); |
| 180 | 5281 if (rp == NULL) |
| 5282 status = RA_FAIL; | |
| 5283 else | |
| 7 | 5284 { |
| 180 | 5285 rp->rs_no = op; |
| 233 | 5286 reg_save(&rp->rs_un.regsave, &backpos); |
| 180 | 5287 next = OPERAND(scan); |
| 5288 /* We continue and handle the result when done. */ | |
| 7 | 5289 } |
| 5290 break; | |
| 5291 | |
| 5292 case BEHIND: | |
| 5293 case NOBEHIND: | |
| 180 | 5294 /* Need a bit of room to store extra positions. */ |
| 212 | 5295 if ((long)((unsigned)regstack.ga_len >> 10) >= p_mmp) |
| 189 | 5296 { |
| 5297 EMSG(_(e_maxmempat)); | |
| 5298 status = RA_FAIL; | |
| 5299 } | |
| 5300 else if (ga_grow(®stack, sizeof(regbehind_T)) == FAIL) | |
| 180 | 5301 status = RA_FAIL; |
| 5302 else | |
| 7 | 5303 { |
| 180 | 5304 regstack.ga_len += sizeof(regbehind_T); |
| 270 | 5305 rp = regstack_push(RS_BEHIND1, scan); |
| 180 | 5306 if (rp == NULL) |
| 5307 status = RA_FAIL; | |
| 5308 else | |
| 7 | 5309 { |
| 1579 | 5310 /* Need to save the subexpr to be able to restore them |
| 5311 * when there is a match but we don't use it. */ | |
| 5312 save_subexpr(((regbehind_T *)rp) - 1); | |
| 5313 | |
| 180 | 5314 rp->rs_no = op; |
| 233 | 5315 reg_save(&rp->rs_un.regsave, &backpos); |
| 180 | 5316 /* First try if what follows matches. If it does then we |
| 5317 * check the behind match by looping. */ | |
| 7 | 5318 } |
| 5319 } | |
| 180 | 5320 break; |
| 7 | 5321 |
| 5322 case BHPOS: | |
| 5323 if (REG_MULTI) | |
| 5324 { | |
| 5325 if (behind_pos.rs_u.pos.col != (colnr_T)(reginput - regline) | |
| 5326 || behind_pos.rs_u.pos.lnum != reglnum) | |
| 180 | 5327 status = RA_NOMATCH; |
| 7 | 5328 } |
| 5329 else if (behind_pos.rs_u.ptr != reginput) | |
| 180 | 5330 status = RA_NOMATCH; |
| 7 | 5331 break; |
| 5332 | |
| 5333 case NEWL: | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
5334 if ((c != NUL || !REG_MULTI || reglnum > rex.reg_maxline |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
5335 || rex.reg_line_lbr) |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
5336 && (c != '\n' || !rex.reg_line_lbr)) |
| 180 | 5337 status = RA_NOMATCH; |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
5338 else if (rex.reg_line_lbr) |
| 7 | 5339 ADVANCE_REGINPUT(); |
| 5340 else | |
| 5341 reg_nextline(); | |
| 5342 break; | |
| 5343 | |
| 5344 case END: | |
| 180 | 5345 status = RA_MATCH; /* Success! */ |
| 5346 break; | |
| 7 | 5347 |
| 5348 default: | |
| 5349 EMSG(_(e_re_corr)); | |
| 5350 #ifdef DEBUG | |
| 5351 printf("Illegal op code %d\n", op); | |
| 5352 #endif | |
| 180 | 5353 status = RA_FAIL; |
| 5354 break; | |
| 7 | 5355 } |
| 5356 } | |
| 5357 | |
| 180 | 5358 /* If we can't continue sequentially, break the inner loop. */ |
| 5359 if (status != RA_CONT) | |
| 5360 break; | |
| 5361 | |
| 5362 /* Continue in inner loop, advance to next item. */ | |
| 7 | 5363 scan = next; |
| 180 | 5364 |
| 5365 } /* end of inner loop */ | |
| 7 | 5366 |
| 5367 /* | |
| 180 | 5368 * If there is something on the regstack execute the code for the state. |
| 233 | 5369 * If the state is popped then loop and use the older state. |
| 7 | 5370 */ |
| 180 | 5371 while (regstack.ga_len > 0 && status != RA_FAIL) |
| 5372 { | |
| 5373 rp = (regitem_T *)((char *)regstack.ga_data + regstack.ga_len) - 1; | |
| 5374 switch (rp->rs_state) | |
| 5375 { | |
| 5376 case RS_NOPEN: | |
| 5377 /* Result is passed on as-is, simply pop the state. */ | |
| 270 | 5378 regstack_pop(&scan); |
| 180 | 5379 break; |
| 5380 | |
| 5381 case RS_MOPEN: | |
| 5382 /* Pop the state. Restore pointers when there is no match. */ | |
| 5383 if (status == RA_NOMATCH) | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
5384 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
|
5385 &rex.reg_startp[rp->rs_no]); |
| 270 | 5386 regstack_pop(&scan); |
| 180 | 5387 break; |
| 5388 | |
| 5389 #ifdef FEAT_SYN_HL | |
| 5390 case RS_ZOPEN: | |
| 5391 /* Pop the state. Restore pointers when there is no match. */ | |
| 5392 if (status == RA_NOMATCH) | |
| 5393 restore_se(&rp->rs_un.sesave, ®_startzpos[rp->rs_no], | |
| 5394 ®_startzp[rp->rs_no]); | |
| 270 | 5395 regstack_pop(&scan); |
| 180 | 5396 break; |
| 5397 #endif | |
| 5398 | |
| 5399 case RS_MCLOSE: | |
| 5400 /* Pop the state. Restore pointers when there is no match. */ | |
| 5401 if (status == RA_NOMATCH) | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
5402 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
|
5403 &rex.reg_endp[rp->rs_no]); |
| 270 | 5404 regstack_pop(&scan); |
| 180 | 5405 break; |
| 5406 | |
| 5407 #ifdef FEAT_SYN_HL | |
| 5408 case RS_ZCLOSE: | |
| 5409 /* Pop the state. Restore pointers when there is no match. */ | |
| 5410 if (status == RA_NOMATCH) | |
| 5411 restore_se(&rp->rs_un.sesave, ®_endzpos[rp->rs_no], | |
| 5412 ®_endzp[rp->rs_no]); | |
| 270 | 5413 regstack_pop(&scan); |
| 180 | 5414 break; |
| 5415 #endif | |
| 5416 | |
| 5417 case RS_BRANCH: | |
| 5418 if (status == RA_MATCH) | |
| 5419 /* this branch matched, use it */ | |
| 270 | 5420 regstack_pop(&scan); |
| 180 | 5421 else |
| 5422 { | |
| 5423 if (status != RA_BREAK) | |
| 5424 { | |
| 5425 /* After a non-matching branch: try next one. */ | |
| 233 | 5426 reg_restore(&rp->rs_un.regsave, &backpos); |
| 180 | 5427 scan = rp->rs_scan; |
| 5428 } | |
| 5429 if (scan == NULL || OP(scan) != BRANCH) | |
| 5430 { | |
| 5431 /* no more branches, didn't find a match */ | |
| 5432 status = RA_NOMATCH; | |
| 270 | 5433 regstack_pop(&scan); |
| 180 | 5434 } |
| 5435 else | |
| 5436 { | |
| 5437 /* Prepare to try a branch. */ | |
| 5438 rp->rs_scan = regnext(scan); | |
| 233 | 5439 reg_save(&rp->rs_un.regsave, &backpos); |
| 180 | 5440 scan = OPERAND(scan); |
| 5441 } | |
| 5442 } | |
| 5443 break; | |
| 5444 | |
| 5445 case RS_BRCPLX_MORE: | |
| 5446 /* Pop the state. Restore pointers when there is no match. */ | |
| 5447 if (status == RA_NOMATCH) | |
| 5448 { | |
| 233 | 5449 reg_restore(&rp->rs_un.regsave, &backpos); |
| 180 | 5450 --brace_count[rp->rs_no]; /* decrement match count */ |
| 5451 } | |
| 270 | 5452 regstack_pop(&scan); |
| 180 | 5453 break; |
| 5454 | |
| 5455 case RS_BRCPLX_LONG: | |
| 5456 /* Pop the state. Restore pointers when there is no match. */ | |
| 5457 if (status == RA_NOMATCH) | |
| 5458 { | |
| 5459 /* There was no match, but we did find enough matches. */ | |
| 233 | 5460 reg_restore(&rp->rs_un.regsave, &backpos); |
| 180 | 5461 --brace_count[rp->rs_no]; |
| 5462 /* continue with the items after "\{}" */ | |
| 5463 status = RA_CONT; | |
| 5464 } | |
| 270 | 5465 regstack_pop(&scan); |
| 180 | 5466 if (status == RA_CONT) |
| 5467 scan = regnext(scan); | |
| 5468 break; | |
| 5469 | |
| 5470 case RS_BRCPLX_SHORT: | |
| 5471 /* Pop the state. Restore pointers when there is no match. */ | |
| 5472 if (status == RA_NOMATCH) | |
| 5473 /* There was no match, try to match one more item. */ | |
| 233 | 5474 reg_restore(&rp->rs_un.regsave, &backpos); |
| 270 | 5475 regstack_pop(&scan); |
| 180 | 5476 if (status == RA_NOMATCH) |
| 5477 { | |
| 5478 scan = OPERAND(scan); | |
| 5479 status = RA_CONT; | |
| 5480 } | |
| 5481 break; | |
| 5482 | |
| 5483 case RS_NOMATCH: | |
| 5484 /* Pop the state. If the operand matches for NOMATCH or | |
| 5485 * doesn't match for MATCH/SUBPAT, we fail. Otherwise backup, | |
| 5486 * except for SUBPAT, and continue with the next item. */ | |
| 5487 if (status == (rp->rs_no == NOMATCH ? RA_MATCH : RA_NOMATCH)) | |
| 5488 status = RA_NOMATCH; | |
| 5489 else | |
| 5490 { | |
| 5491 status = RA_CONT; | |
| 233 | 5492 if (rp->rs_no != SUBPAT) /* zero-width */ |
| 5493 reg_restore(&rp->rs_un.regsave, &backpos); | |
| 180 | 5494 } |
| 270 | 5495 regstack_pop(&scan); |
| 180 | 5496 if (status == RA_CONT) |
| 5497 scan = regnext(scan); | |
| 5498 break; | |
| 5499 | |
| 5500 case RS_BEHIND1: | |
| 5501 if (status == RA_NOMATCH) | |
| 5502 { | |
| 270 | 5503 regstack_pop(&scan); |
| 180 | 5504 regstack.ga_len -= sizeof(regbehind_T); |
| 5505 } | |
| 5506 else | |
| 5507 { | |
| 5508 /* The stuff after BEHIND/NOBEHIND matches. Now try if | |
| 5509 * the behind part does (not) match before the current | |
| 5510 * position in the input. This must be done at every | |
| 5511 * position in the input and checking if the match ends at | |
| 5512 * the current position. */ | |
| 5513 | |
| 5514 /* save the position after the found match for next */ | |
| 233 | 5515 reg_save(&(((regbehind_T *)rp) - 1)->save_after, &backpos); |
| 180 | 5516 |
|
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4505
diff
changeset
|
5517 /* Start looking for a match with operand at the current |
| 1209 | 5518 * position. Go back one character until we find the |
| 180 | 5519 * result, hitting the start of the line or the previous |
| 5520 * line (for multi-line matching). | |
| 5521 * Set behind_pos to where the match should end, BHPOS | |
| 5522 * will match it. Save the current value. */ | |
| 5523 (((regbehind_T *)rp) - 1)->save_behind = behind_pos; | |
| 5524 behind_pos = rp->rs_un.regsave; | |
| 5525 | |
| 5526 rp->rs_state = RS_BEHIND2; | |
| 5527 | |
| 233 | 5528 reg_restore(&rp->rs_un.regsave, &backpos); |
|
4579
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parents:
4505
diff
changeset
|
5529 scan = OPERAND(rp->rs_scan) + 4; |
| 180 | 5530 } |
| 5531 break; | |
| 5532 | |
| 5533 case RS_BEHIND2: | |
| 5534 /* | |
| 5535 * Looping for BEHIND / NOBEHIND match. | |
| 5536 */ | |
| 5537 if (status == RA_MATCH && reg_save_equal(&behind_pos)) | |
| 5538 { | |
| 5539 /* found a match that ends where "next" started */ | |
| 5540 behind_pos = (((regbehind_T *)rp) - 1)->save_behind; | |
| 5541 if (rp->rs_no == BEHIND) | |
| 233 | 5542 reg_restore(&(((regbehind_T *)rp) - 1)->save_after, |
| 5543 &backpos); | |
| 180 | 5544 else |
| 1579 | 5545 { |
| 5546 /* But we didn't want a match. Need to restore the | |
| 5547 * subexpr, because what follows matched, so they have | |
| 5548 * been set. */ | |
| 180 | 5549 status = RA_NOMATCH; |
| 1579 | 5550 restore_subexpr(((regbehind_T *)rp) - 1); |
| 5551 } | |
| 270 | 5552 regstack_pop(&scan); |
| 180 | 5553 regstack.ga_len -= sizeof(regbehind_T); |
| 5554 } | |
| 5555 else | |
| 5556 { | |
|
4579
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Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
5557 long limit; |
|
7a2be4a39423
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parents:
4505
diff
changeset
|
5558 |
| 1579 | 5559 /* No match or a match that doesn't end where we want it: Go |
| 5560 * back one character. May go to previous line once. */ | |
| 180 | 5561 no = OK; |
|
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parents:
4505
diff
changeset
|
5562 limit = OPERAND_MIN(rp->rs_scan); |
| 180 | 5563 if (REG_MULTI) |
| 5564 { | |
|
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4679
diff
changeset
|
5565 if (limit > 0 |
|
2f51ee8825db
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parents:
4679
diff
changeset
|
5566 && ((rp->rs_un.regsave.rs_u.pos.lnum |
|
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updated for version 7.3.1088
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parents:
4679
diff
changeset
|
5567 < behind_pos.rs_u.pos.lnum |
|
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
5568 ? (colnr_T)STRLEN(regline) |
|
2f51ee8825db
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parents:
4679
diff
changeset
|
5569 : behind_pos.rs_u.pos.col) |
|
2f51ee8825db
updated for version 7.3.1088
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parents:
4679
diff
changeset
|
5570 - 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
|
5571 no = FAIL; |
|
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
5572 else if (rp->rs_un.regsave.rs_u.pos.col == 0) |
| 180 | 5573 { |
| 5574 if (rp->rs_un.regsave.rs_u.pos.lnum | |
| 5575 < behind_pos.rs_u.pos.lnum | |
| 5576 || reg_getline( | |
| 5577 --rp->rs_un.regsave.rs_u.pos.lnum) | |
| 5578 == NULL) | |
| 5579 no = FAIL; | |
| 5580 else | |
| 5581 { | |
| 233 | 5582 reg_restore(&rp->rs_un.regsave, &backpos); |
| 180 | 5583 rp->rs_un.regsave.rs_u.pos.col = |
| 5584 (colnr_T)STRLEN(regline); | |
| 5585 } | |
| 5586 } | |
| 5587 else | |
|
4579
7a2be4a39423
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Bram Moolenaar <bram@vim.org>
parents:
4505
diff
changeset
|
5588 { |
| 4176 | 5589 #ifdef FEAT_MBYTE |
|
4579
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parents:
4505
diff
changeset
|
5590 if (has_mbyte) |
|
7a2be4a39423
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parents:
4505
diff
changeset
|
5591 rp->rs_un.regsave.rs_u.pos.col -= |
|
7a2be4a39423
updated for version 7.3.1037
Bram Moolenaar <bram@vim.org>
parents:
4505
diff
changeset
|
5592 (*mb_head_off)(regline, regline |
| 4176 | 5593 + rp->rs_un.regsave.rs_u.pos.col - 1) + 1; |
|
4579
7a2be4a39423
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Bram Moolenaar <bram@vim.org>
parents:
4505
diff
changeset
|
5594 else |
|
7a2be4a39423
updated for version 7.3.1037
Bram Moolenaar <bram@vim.org>
parents:
4505
diff
changeset
|
5595 #endif |
|
7a2be4a39423
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parents:
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diff
changeset
|
5596 --rp->rs_un.regsave.rs_u.pos.col; |
|
7a2be4a39423
updated for version 7.3.1037
Bram Moolenaar <bram@vim.org>
parents:
4505
diff
changeset
|
5597 } |
| 180 | 5598 } |
| 5599 else | |
| 5600 { | |
| 5601 if (rp->rs_un.regsave.rs_u.ptr == regline) | |
| 5602 no = FAIL; | |
| 5603 else | |
|
4579
7a2be4a39423
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Bram Moolenaar <bram@vim.org>
parents:
4505
diff
changeset
|
5604 { |
|
11127
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patch 8.0.0451: some macros are in lower case
Christian Brabandt <cb@256bit.org>
parents:
11121
diff
changeset
|
5605 MB_PTR_BACK(regline, rp->rs_un.regsave.rs_u.ptr); |
|
4579
7a2be4a39423
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Bram Moolenaar <bram@vim.org>
parents:
4505
diff
changeset
|
5606 if (limit > 0 && (long)(behind_pos.rs_u.ptr |
|
7a2be4a39423
updated for version 7.3.1037
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parents:
4505
diff
changeset
|
5607 - rp->rs_un.regsave.rs_u.ptr) > limit) |
|
7a2be4a39423
updated for version 7.3.1037
Bram Moolenaar <bram@vim.org>
parents:
4505
diff
changeset
|
5608 no = FAIL; |
|
7a2be4a39423
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Bram Moolenaar <bram@vim.org>
parents:
4505
diff
changeset
|
5609 } |
| 180 | 5610 } |
| 5611 if (no == OK) | |
| 5612 { | |
| 5613 /* Advanced, prepare for finding match again. */ | |
| 233 | 5614 reg_restore(&rp->rs_un.regsave, &backpos); |
|
4579
7a2be4a39423
updated for version 7.3.1037
Bram Moolenaar <bram@vim.org>
parents:
4505
diff
changeset
|
5615 scan = OPERAND(rp->rs_scan) + 4; |
| 1579 | 5616 if (status == RA_MATCH) |
| 5617 { | |
| 5618 /* We did match, so subexpr may have been changed, | |
| 5619 * need to restore them for the next try. */ | |
| 5620 status = RA_NOMATCH; | |
| 5621 restore_subexpr(((regbehind_T *)rp) - 1); | |
| 5622 } | |
| 180 | 5623 } |
| 5624 else | |
| 5625 { | |
| 5626 /* Can't advance. For NOBEHIND that's a match. */ | |
| 5627 behind_pos = (((regbehind_T *)rp) - 1)->save_behind; | |
| 5628 if (rp->rs_no == NOBEHIND) | |
| 5629 { | |
| 233 | 5630 reg_restore(&(((regbehind_T *)rp) - 1)->save_after, |
| 5631 &backpos); | |
| 180 | 5632 status = RA_MATCH; |
| 5633 } | |
| 5634 else | |
| 1579 | 5635 { |
| 5636 /* We do want a proper match. Need to restore the | |
| 5637 * subexpr if we had a match, because they may have | |
| 5638 * been set. */ | |
| 5639 if (status == RA_MATCH) | |
| 5640 { | |
| 5641 status = RA_NOMATCH; | |
| 5642 restore_subexpr(((regbehind_T *)rp) - 1); | |
| 5643 } | |
| 5644 } | |
| 270 | 5645 regstack_pop(&scan); |
| 180 | 5646 regstack.ga_len -= sizeof(regbehind_T); |
| 5647 } | |
| 5648 } | |
| 5649 break; | |
| 5650 | |
| 5651 case RS_STAR_LONG: | |
| 5652 case RS_STAR_SHORT: | |
| 5653 { | |
| 5654 regstar_T *rst = ((regstar_T *)rp) - 1; | |
| 5655 | |
| 5656 if (status == RA_MATCH) | |
| 5657 { | |
| 270 | 5658 regstack_pop(&scan); |
| 180 | 5659 regstack.ga_len -= sizeof(regstar_T); |
| 5660 break; | |
| 5661 } | |
| 5662 | |
| 5663 /* Tried once already, restore input pointers. */ | |
| 5664 if (status != RA_BREAK) | |
| 233 | 5665 reg_restore(&rp->rs_un.regsave, &backpos); |
| 180 | 5666 |
| 5667 /* Repeat until we found a position where it could match. */ | |
| 5668 for (;;) | |
| 5669 { | |
| 5670 if (status != RA_BREAK) | |
| 5671 { | |
| 5672 /* Tried first position already, advance. */ | |
| 5673 if (rp->rs_state == RS_STAR_LONG) | |
| 5674 { | |
| 685 | 5675 /* Trying for longest match, but couldn't or |
| 5676 * didn't match -- back up one char. */ | |
| 180 | 5677 if (--rst->count < rst->minval) |
| 5678 break; | |
| 5679 if (reginput == regline) | |
| 5680 { | |
| 5681 /* backup to last char of previous line */ | |
| 5682 --reglnum; | |
| 5683 regline = reg_getline(reglnum); | |
| 5684 /* Just in case regrepeat() didn't count | |
| 5685 * right. */ | |
| 5686 if (regline == NULL) | |
| 5687 break; | |
| 5688 reginput = regline + STRLEN(regline); | |
| 5689 fast_breakcheck(); | |
| 5690 } | |
| 5691 else | |
|
11127
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patch 8.0.0451: some macros are in lower case
Christian Brabandt <cb@256bit.org>
parents:
11121
diff
changeset
|
5692 MB_PTR_BACK(regline, reginput); |
| 180 | 5693 } |
| 5694 else | |
| 5695 { | |
| 5696 /* Range is backwards, use shortest match first. | |
| 5697 * Careful: maxval and minval are exchanged! | |
| 5698 * Couldn't or didn't match: try advancing one | |
| 5699 * char. */ | |
| 5700 if (rst->count == rst->minval | |
| 5701 || regrepeat(OPERAND(rp->rs_scan), 1L) == 0) | |
| 5702 break; | |
| 5703 ++rst->count; | |
| 5704 } | |
| 5705 if (got_int) | |
| 5706 break; | |
| 5707 } | |
| 5708 else | |
| 5709 status = RA_NOMATCH; | |
| 5710 | |
| 5711 /* If it could match, try it. */ | |
| 5712 if (rst->nextb == NUL || *reginput == rst->nextb | |
| 5713 || *reginput == rst->nextb_ic) | |
| 5714 { | |
| 233 | 5715 reg_save(&rp->rs_un.regsave, &backpos); |
| 180 | 5716 scan = regnext(rp->rs_scan); |
| 5717 status = RA_CONT; | |
| 5718 break; | |
| 5719 } | |
| 5720 } | |
| 5721 if (status != RA_CONT) | |
| 5722 { | |
| 5723 /* Failed. */ | |
| 270 | 5724 regstack_pop(&scan); |
| 180 | 5725 regstack.ga_len -= sizeof(regstar_T); |
| 5726 status = RA_NOMATCH; | |
| 5727 } | |
| 5728 } | |
| 5729 break; | |
| 5730 } | |
| 5731 | |
| 685 | 5732 /* If we want to continue the inner loop or didn't pop a state |
| 5733 * continue matching loop */ | |
| 180 | 5734 if (status == RA_CONT || rp == (regitem_T *) |
| 5735 ((char *)regstack.ga_data + regstack.ga_len) - 1) | |
| 5736 break; | |
| 5737 } | |
| 5738 | |
| 189 | 5739 /* May need to continue with the inner loop, starting at "scan". */ |
| 180 | 5740 if (status == RA_CONT) |
| 5741 continue; | |
| 5742 | |
| 5743 /* | |
| 5744 * If the regstack is empty or something failed we are done. | |
| 5745 */ | |
| 5746 if (regstack.ga_len == 0 || status == RA_FAIL) | |
| 5747 { | |
| 5748 if (scan == NULL) | |
| 5749 { | |
| 5750 /* | |
| 5751 * We get here only if there's trouble -- normally "case END" is | |
| 5752 * the terminating point. | |
| 5753 */ | |
| 5754 EMSG(_(e_re_corr)); | |
| 7 | 5755 #ifdef DEBUG |
| 180 | 5756 printf("Premature EOL\n"); |
| 7 | 5757 #endif |
| 180 | 5758 } |
| 5759 return (status == RA_MATCH); | |
| 5760 } | |
| 5761 | |
| 5762 } /* End of loop until the regstack is empty. */ | |
| 5763 | |
| 5764 /* NOTREACHED */ | |
| 5765 } | |
| 5766 | |
| 5767 /* | |
| 5768 * Push an item onto the regstack. | |
| 5769 * Returns pointer to new item. Returns NULL when out of memory. | |
| 5770 */ | |
| 5771 static regitem_T * | |
|
7833
c079097365f3
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Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
5772 regstack_push(regstate_T state, char_u *scan) |
| 180 | 5773 { |
| 5774 regitem_T *rp; | |
| 5775 | |
| 270 | 5776 if ((long)((unsigned)regstack.ga_len >> 10) >= p_mmp) |
| 189 | 5777 { |
| 5778 EMSG(_(e_maxmempat)); | |
| 5779 return NULL; | |
| 5780 } | |
| 270 | 5781 if (ga_grow(®stack, sizeof(regitem_T)) == FAIL) |
| 180 | 5782 return NULL; |
| 5783 | |
| 270 | 5784 rp = (regitem_T *)((char *)regstack.ga_data + regstack.ga_len); |
| 180 | 5785 rp->rs_state = state; |
| 5786 rp->rs_scan = scan; | |
| 5787 | |
| 270 | 5788 regstack.ga_len += sizeof(regitem_T); |
| 180 | 5789 return rp; |
| 5790 } | |
| 5791 | |
| 5792 /* | |
| 5793 * Pop an item from the regstack. | |
| 5794 */ | |
| 5795 static void | |
|
7833
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
5796 regstack_pop(char_u **scan) |
| 180 | 5797 { |
| 5798 regitem_T *rp; | |
| 5799 | |
| 270 | 5800 rp = (regitem_T *)((char *)regstack.ga_data + regstack.ga_len) - 1; |
| 180 | 5801 *scan = rp->rs_scan; |
| 5802 | |
| 270 | 5803 regstack.ga_len -= sizeof(regitem_T); |
| 7 | 5804 } |
| 5805 | |
| 5806 /* | |
| 5807 * regrepeat - repeatedly match something simple, return how many. | |
| 5808 * Advances reginput (and reglnum) to just after the matched chars. | |
| 5809 */ | |
| 5810 static int | |
|
7833
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
5811 regrepeat( |
|
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
5812 char_u *p, |
|
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
5813 long maxcount) /* maximum number of matches allowed */ |
| 7 | 5814 { |
| 5815 long count = 0; | |
| 5816 char_u *scan; | |
| 5817 char_u *opnd; | |
| 5818 int mask; | |
| 5819 int testval = 0; | |
| 5820 | |
| 5821 scan = reginput; /* Make local copy of reginput for speed. */ | |
| 5822 opnd = OPERAND(p); | |
| 5823 switch (OP(p)) | |
| 5824 { | |
| 5825 case ANY: | |
| 5826 case ANY + ADD_NL: | |
| 5827 while (count < maxcount) | |
| 5828 { | |
| 5829 /* Matching anything means we continue until end-of-line (or | |
| 5830 * end-of-file for ANY + ADD_NL), only limited by maxcount. */ | |
| 5831 while (*scan != NUL && count < maxcount) | |
| 5832 { | |
| 5833 ++count; | |
|
11127
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Christian Brabandt <cb@256bit.org>
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11121
diff
changeset
|
5834 MB_PTR_ADV(scan); |
| 7 | 5835 } |
|
10245
d76ccdacb41e
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Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
5836 if (!REG_MULTI || !WITH_NL(OP(p)) || reglnum > rex.reg_maxline |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
5837 || rex.reg_line_lbr || count == maxcount) |
| 7 | 5838 break; |
| 5839 ++count; /* count the line-break */ | |
| 5840 reg_nextline(); | |
| 5841 scan = reginput; | |
| 5842 if (got_int) | |
| 5843 break; | |
| 5844 } | |
| 5845 break; | |
| 5846 | |
| 5847 case IDENT: | |
| 5848 case IDENT + ADD_NL: | |
| 5849 testval = TRUE; | |
| 5850 /*FALLTHROUGH*/ | |
| 5851 case SIDENT: | |
| 5852 case SIDENT + ADD_NL: | |
| 5853 while (count < maxcount) | |
| 5854 { | |
| 4466 | 5855 if (vim_isIDc(PTR2CHAR(scan)) && (testval || !VIM_ISDIGIT(*scan))) |
| 7 | 5856 { |
|
11127
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Christian Brabandt <cb@256bit.org>
parents:
11121
diff
changeset
|
5857 MB_PTR_ADV(scan); |
| 7 | 5858 } |
| 5859 else if (*scan == NUL) | |
| 5860 { | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
5861 if (!REG_MULTI || !WITH_NL(OP(p)) || reglnum > rex.reg_maxline |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
5862 || rex.reg_line_lbr) |
| 7 | 5863 break; |
| 5864 reg_nextline(); | |
| 5865 scan = reginput; | |
| 5866 if (got_int) | |
| 5867 break; | |
| 5868 } | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
5869 else if (rex.reg_line_lbr && *scan == '\n' && WITH_NL(OP(p))) |
| 7 | 5870 ++scan; |
| 5871 else | |
| 5872 break; | |
| 5873 ++count; | |
| 5874 } | |
| 5875 break; | |
| 5876 | |
| 5877 case KWORD: | |
| 5878 case KWORD + ADD_NL: | |
| 5879 testval = TRUE; | |
| 5880 /*FALLTHROUGH*/ | |
| 5881 case SKWORD: | |
| 5882 case SKWORD + ADD_NL: | |
| 5883 while (count < maxcount) | |
| 5884 { | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
5885 if (vim_iswordp_buf(scan, rex.reg_buf) |
| 4069 | 5886 && (testval || !VIM_ISDIGIT(*scan))) |
| 7 | 5887 { |
|
11127
506f5d8b7d8b
patch 8.0.0451: some macros are in lower case
Christian Brabandt <cb@256bit.org>
parents:
11121
diff
changeset
|
5888 MB_PTR_ADV(scan); |
| 7 | 5889 } |
| 5890 else if (*scan == NUL) | |
| 5891 { | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
5892 if (!REG_MULTI || !WITH_NL(OP(p)) || reglnum > rex.reg_maxline |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
5893 || rex.reg_line_lbr) |
| 7 | 5894 break; |
| 5895 reg_nextline(); | |
| 5896 scan = reginput; | |
| 5897 if (got_int) | |
| 5898 break; | |
| 5899 } | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
5900 else if (rex.reg_line_lbr && *scan == '\n' && WITH_NL(OP(p))) |
| 7 | 5901 ++scan; |
| 5902 else | |
| 5903 break; | |
| 5904 ++count; | |
| 5905 } | |
| 5906 break; | |
| 5907 | |
| 5908 case FNAME: | |
| 5909 case FNAME + ADD_NL: | |
| 5910 testval = TRUE; | |
| 5911 /*FALLTHROUGH*/ | |
| 5912 case SFNAME: | |
| 5913 case SFNAME + ADD_NL: | |
| 5914 while (count < maxcount) | |
| 5915 { | |
| 4466 | 5916 if (vim_isfilec(PTR2CHAR(scan)) && (testval || !VIM_ISDIGIT(*scan))) |
| 7 | 5917 { |
|
11127
506f5d8b7d8b
patch 8.0.0451: some macros are in lower case
Christian Brabandt <cb@256bit.org>
parents:
11121
diff
changeset
|
5918 MB_PTR_ADV(scan); |
| 7 | 5919 } |
| 5920 else if (*scan == NUL) | |
| 5921 { | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
5922 if (!REG_MULTI || !WITH_NL(OP(p)) || reglnum > rex.reg_maxline |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
5923 || rex.reg_line_lbr) |
| 7 | 5924 break; |
| 5925 reg_nextline(); | |
| 5926 scan = reginput; | |
| 5927 if (got_int) | |
| 5928 break; | |
| 5929 } | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
5930 else if (rex.reg_line_lbr && *scan == '\n' && WITH_NL(OP(p))) |
| 7 | 5931 ++scan; |
| 5932 else | |
| 5933 break; | |
| 5934 ++count; | |
| 5935 } | |
| 5936 break; | |
| 5937 | |
| 5938 case PRINT: | |
| 5939 case PRINT + ADD_NL: | |
| 5940 testval = TRUE; | |
| 5941 /*FALLTHROUGH*/ | |
| 5942 case SPRINT: | |
| 5943 case SPRINT + ADD_NL: | |
| 5944 while (count < maxcount) | |
| 5945 { | |
| 5946 if (*scan == NUL) | |
| 5947 { | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
5948 if (!REG_MULTI || !WITH_NL(OP(p)) || reglnum > rex.reg_maxline |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
5949 || rex.reg_line_lbr) |
| 7 | 5950 break; |
| 5951 reg_nextline(); | |
| 5952 scan = reginput; | |
| 5953 if (got_int) | |
| 5954 break; | |
| 5955 } | |
|
5221
9982ec574beb
updated for version 7.4a.036
Bram Moolenaar <bram@vim.org>
parents:
4901
diff
changeset
|
5956 else if (vim_isprintc(PTR2CHAR(scan)) == 1 |
|
9982ec574beb
updated for version 7.4a.036
Bram Moolenaar <bram@vim.org>
parents:
4901
diff
changeset
|
5957 && (testval || !VIM_ISDIGIT(*scan))) |
| 7 | 5958 { |
|
11127
506f5d8b7d8b
patch 8.0.0451: some macros are in lower case
Christian Brabandt <cb@256bit.org>
parents:
11121
diff
changeset
|
5959 MB_PTR_ADV(scan); |
| 7 | 5960 } |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
5961 else if (rex.reg_line_lbr && *scan == '\n' && WITH_NL(OP(p))) |
| 7 | 5962 ++scan; |
| 5963 else | |
| 5964 break; | |
| 5965 ++count; | |
| 5966 } | |
| 5967 break; | |
| 5968 | |
| 5969 case WHITE: | |
| 5970 case WHITE + ADD_NL: | |
| 5971 testval = mask = RI_WHITE; | |
| 5972 do_class: | |
| 5973 while (count < maxcount) | |
| 5974 { | |
| 5975 #ifdef FEAT_MBYTE | |
| 5976 int l; | |
| 5977 #endif | |
| 5978 if (*scan == NUL) | |
| 5979 { | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
5980 if (!REG_MULTI || !WITH_NL(OP(p)) || reglnum > rex.reg_maxline |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
5981 || rex.reg_line_lbr) |
| 7 | 5982 break; |
| 5983 reg_nextline(); | |
| 5984 scan = reginput; | |
| 5985 if (got_int) | |
| 5986 break; | |
| 5987 } | |
| 5988 #ifdef FEAT_MBYTE | |
| 474 | 5989 else if (has_mbyte && (l = (*mb_ptr2len)(scan)) > 1) |
| 7 | 5990 { |
| 5991 if (testval != 0) | |
| 5992 break; | |
| 5993 scan += l; | |
| 5994 } | |
| 5995 #endif | |
| 5996 else if ((class_tab[*scan] & mask) == testval) | |
| 5997 ++scan; | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
5998 else if (rex.reg_line_lbr && *scan == '\n' && WITH_NL(OP(p))) |
| 7 | 5999 ++scan; |
| 6000 else | |
| 6001 break; | |
| 6002 ++count; | |
| 6003 } | |
| 6004 break; | |
| 6005 | |
| 6006 case NWHITE: | |
| 6007 case NWHITE + ADD_NL: | |
| 6008 mask = RI_WHITE; | |
| 6009 goto do_class; | |
| 6010 case DIGIT: | |
| 6011 case DIGIT + ADD_NL: | |
| 6012 testval = mask = RI_DIGIT; | |
| 6013 goto do_class; | |
| 6014 case NDIGIT: | |
| 6015 case NDIGIT + ADD_NL: | |
| 6016 mask = RI_DIGIT; | |
| 6017 goto do_class; | |
| 6018 case HEX: | |
| 6019 case HEX + ADD_NL: | |
| 6020 testval = mask = RI_HEX; | |
| 6021 goto do_class; | |
| 6022 case NHEX: | |
| 6023 case NHEX + ADD_NL: | |
| 6024 mask = RI_HEX; | |
| 6025 goto do_class; | |
| 6026 case OCTAL: | |
| 6027 case OCTAL + ADD_NL: | |
| 6028 testval = mask = RI_OCTAL; | |
| 6029 goto do_class; | |
| 6030 case NOCTAL: | |
| 6031 case NOCTAL + ADD_NL: | |
| 6032 mask = RI_OCTAL; | |
| 6033 goto do_class; | |
| 6034 case WORD: | |
| 6035 case WORD + ADD_NL: | |
| 6036 testval = mask = RI_WORD; | |
| 6037 goto do_class; | |
| 6038 case NWORD: | |
| 6039 case NWORD + ADD_NL: | |
| 6040 mask = RI_WORD; | |
| 6041 goto do_class; | |
| 6042 case HEAD: | |
| 6043 case HEAD + ADD_NL: | |
| 6044 testval = mask = RI_HEAD; | |
| 6045 goto do_class; | |
| 6046 case NHEAD: | |
| 6047 case NHEAD + ADD_NL: | |
| 6048 mask = RI_HEAD; | |
| 6049 goto do_class; | |
| 6050 case ALPHA: | |
| 6051 case ALPHA + ADD_NL: | |
| 6052 testval = mask = RI_ALPHA; | |
| 6053 goto do_class; | |
| 6054 case NALPHA: | |
| 6055 case NALPHA + ADD_NL: | |
| 6056 mask = RI_ALPHA; | |
| 6057 goto do_class; | |
| 6058 case LOWER: | |
| 6059 case LOWER + ADD_NL: | |
| 6060 testval = mask = RI_LOWER; | |
| 6061 goto do_class; | |
| 6062 case NLOWER: | |
| 6063 case NLOWER + ADD_NL: | |
| 6064 mask = RI_LOWER; | |
| 6065 goto do_class; | |
| 6066 case UPPER: | |
| 6067 case UPPER + ADD_NL: | |
| 6068 testval = mask = RI_UPPER; | |
| 6069 goto do_class; | |
| 6070 case NUPPER: | |
| 6071 case NUPPER + ADD_NL: | |
| 6072 mask = RI_UPPER; | |
| 6073 goto do_class; | |
| 6074 | |
| 6075 case EXACTLY: | |
| 6076 { | |
| 6077 int cu, cl; | |
| 6078 | |
| 6079 /* This doesn't do a multi-byte character, because a MULTIBYTECODE | |
| 1347 | 6080 * would have been used for it. It does handle single-byte |
| 6081 * characters, such as latin1. */ | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
6082 if (rex.reg_ic) |
| 7 | 6083 { |
| 1347 | 6084 cu = MB_TOUPPER(*opnd); |
| 6085 cl = MB_TOLOWER(*opnd); | |
| 7 | 6086 while (count < maxcount && (*scan == cu || *scan == cl)) |
| 6087 { | |
| 6088 count++; | |
| 6089 scan++; | |
| 6090 } | |
| 6091 } | |
| 6092 else | |
| 6093 { | |
| 6094 cu = *opnd; | |
| 6095 while (count < maxcount && *scan == cu) | |
| 6096 { | |
| 6097 count++; | |
| 6098 scan++; | |
| 6099 } | |
| 6100 } | |
| 6101 break; | |
| 6102 } | |
| 6103 | |
| 6104 #ifdef FEAT_MBYTE | |
| 6105 case MULTIBYTECODE: | |
| 6106 { | |
| 6107 int i, len, cf = 0; | |
| 6108 | |
| 6109 /* Safety check (just in case 'encoding' was changed since | |
| 6110 * compiling the program). */ | |
| 474 | 6111 if ((len = (*mb_ptr2len)(opnd)) > 1) |
| 7 | 6112 { |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
6113 if (rex.reg_ic && enc_utf8) |
| 7 | 6114 cf = utf_fold(utf_ptr2char(opnd)); |
| 6785 | 6115 while (count < maxcount && (*mb_ptr2len)(scan) >= len) |
| 7 | 6116 { |
| 6117 for (i = 0; i < len; ++i) | |
| 6118 if (opnd[i] != scan[i]) | |
| 6119 break; | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
6120 if (i < len && (!rex.reg_ic || !enc_utf8 |
| 7 | 6121 || utf_fold(utf_ptr2char(scan)) != cf)) |
| 6122 break; | |
| 6123 scan += len; | |
| 6124 ++count; | |
| 6125 } | |
| 6126 } | |
| 6127 } | |
| 6128 break; | |
| 6129 #endif | |
| 6130 | |
| 6131 case ANYOF: | |
| 6132 case ANYOF + ADD_NL: | |
| 6133 testval = TRUE; | |
| 6134 /*FALLTHROUGH*/ | |
| 6135 | |
| 6136 case ANYBUT: | |
| 6137 case ANYBUT + ADD_NL: | |
| 6138 while (count < maxcount) | |
| 6139 { | |
| 6140 #ifdef FEAT_MBYTE | |
| 6141 int len; | |
| 6142 #endif | |
| 6143 if (*scan == NUL) | |
| 6144 { | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
6145 if (!REG_MULTI || !WITH_NL(OP(p)) || reglnum > rex.reg_maxline |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
6146 || rex.reg_line_lbr) |
| 7 | 6147 break; |
| 6148 reg_nextline(); | |
| 6149 scan = reginput; | |
| 6150 if (got_int) | |
| 6151 break; | |
| 6152 } | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
6153 else if (rex.reg_line_lbr && *scan == '\n' && WITH_NL(OP(p))) |
| 7 | 6154 ++scan; |
| 6155 #ifdef FEAT_MBYTE | |
| 474 | 6156 else if (has_mbyte && (len = (*mb_ptr2len)(scan)) > 1) |
| 7 | 6157 { |
| 6158 if ((cstrchr(opnd, (*mb_ptr2char)(scan)) == NULL) == testval) | |
| 6159 break; | |
| 6160 scan += len; | |
| 6161 } | |
| 6162 #endif | |
| 6163 else | |
| 6164 { | |
| 6165 if ((cstrchr(opnd, *scan) == NULL) == testval) | |
| 6166 break; | |
| 6167 ++scan; | |
| 6168 } | |
| 6169 ++count; | |
| 6170 } | |
| 6171 break; | |
| 6172 | |
| 6173 case NEWL: | |
| 6174 while (count < maxcount | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
6175 && ((*scan == NUL && reglnum <= rex.reg_maxline |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
6176 && !rex.reg_line_lbr && REG_MULTI) |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
6177 || (*scan == '\n' && rex.reg_line_lbr))) |
| 7 | 6178 { |
| 6179 count++; | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
6180 if (rex.reg_line_lbr) |
| 7 | 6181 ADVANCE_REGINPUT(); |
| 6182 else | |
| 6183 reg_nextline(); | |
| 6184 scan = reginput; | |
| 6185 if (got_int) | |
| 6186 break; | |
| 6187 } | |
| 6188 break; | |
| 6189 | |
| 6190 default: /* Oh dear. Called inappropriately. */ | |
| 6191 EMSG(_(e_re_corr)); | |
| 6192 #ifdef DEBUG | |
| 6193 printf("Called regrepeat with op code %d\n", OP(p)); | |
| 6194 #endif | |
| 6195 break; | |
| 6196 } | |
| 6197 | |
| 6198 reginput = scan; | |
| 6199 | |
| 6200 return (int)count; | |
| 6201 } | |
| 6202 | |
| 6203 /* | |
| 6204 * regnext - dig the "next" pointer out of a node | |
| 2010 | 6205 * Returns NULL when calculating size, when there is no next item and when |
| 6206 * there is an error. | |
| 7 | 6207 */ |
| 6208 static char_u * | |
|
7833
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
6209 regnext(char_u *p) |
| 7 | 6210 { |
| 6211 int offset; | |
| 6212 | |
| 2010 | 6213 if (p == JUST_CALC_SIZE || reg_toolong) |
| 7 | 6214 return NULL; |
| 6215 | |
| 6216 offset = NEXT(p); | |
| 6217 if (offset == 0) | |
| 6218 return NULL; | |
| 6219 | |
| 233 | 6220 if (OP(p) == BACK) |
| 7 | 6221 return p - offset; |
| 6222 else | |
| 6223 return p + offset; | |
| 6224 } | |
| 6225 | |
| 6226 /* | |
| 6227 * Check the regexp program for its magic number. | |
| 6228 * Return TRUE if it's wrong. | |
| 6229 */ | |
| 6230 static int | |
|
7833
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
6231 prog_magic_wrong(void) |
| 7 | 6232 { |
| 4444 | 6233 regprog_T *prog; |
| 6234 | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
6235 prog = REG_MULTI ? rex.reg_mmatch->regprog : rex.reg_match->regprog; |
| 4444 | 6236 if (prog->engine == &nfa_regengine) |
| 6237 /* For NFA matcher we don't check the magic */ | |
| 6238 return FALSE; | |
| 6239 | |
| 6240 if (UCHARAT(((bt_regprog_T *)prog)->program) != REGMAGIC) | |
| 7 | 6241 { |
| 6242 EMSG(_(e_re_corr)); | |
| 6243 return TRUE; | |
| 6244 } | |
| 6245 return FALSE; | |
| 6246 } | |
| 6247 | |
| 6248 /* | |
| 6249 * Cleanup the subexpressions, if this wasn't done yet. | |
| 6250 * This construction is used to clear the subexpressions only when they are | |
| 6251 * used (to increase speed). | |
| 6252 */ | |
| 6253 static void | |
|
7833
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
6254 cleanup_subexpr(void) |
| 7 | 6255 { |
| 6256 if (need_clear_subexpr) | |
| 6257 { | |
| 6258 if (REG_MULTI) | |
| 6259 { | |
| 6260 /* Use 0xff to set lnum to -1 */ | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
6261 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
|
6262 vim_memset(rex.reg_endpos, 0xff, sizeof(lpos_T) * NSUBEXP); |
| 7 | 6263 } |
| 6264 else | |
| 6265 { | |
|
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Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
6266 vim_memset(rex.reg_startp, 0, sizeof(char_u *) * NSUBEXP); |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
6267 vim_memset(rex.reg_endp, 0, sizeof(char_u *) * NSUBEXP); |
| 7 | 6268 } |
| 6269 need_clear_subexpr = FALSE; | |
| 6270 } | |
| 6271 } | |
| 6272 | |
| 6273 #ifdef FEAT_SYN_HL | |
| 6274 static void | |
|
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Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
6275 cleanup_zsubexpr(void) |
| 7 | 6276 { |
| 6277 if (need_clear_zsubexpr) | |
| 6278 { | |
| 6279 if (REG_MULTI) | |
| 6280 { | |
| 6281 /* Use 0xff to set lnum to -1 */ | |
| 6282 vim_memset(reg_startzpos, 0xff, sizeof(lpos_T) * NSUBEXP); | |
| 6283 vim_memset(reg_endzpos, 0xff, sizeof(lpos_T) * NSUBEXP); | |
| 6284 } | |
| 6285 else | |
| 6286 { | |
| 6287 vim_memset(reg_startzp, 0, sizeof(char_u *) * NSUBEXP); | |
| 6288 vim_memset(reg_endzp, 0, sizeof(char_u *) * NSUBEXP); | |
| 6289 } | |
| 6290 need_clear_zsubexpr = FALSE; | |
| 6291 } | |
| 6292 } | |
| 6293 #endif | |
| 6294 | |
| 6295 /* | |
| 1579 | 6296 * Save the current subexpr to "bp", so that they can be restored |
| 6297 * later by restore_subexpr(). | |
| 6298 */ | |
| 6299 static void | |
|
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Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
6300 save_subexpr(regbehind_T *bp) |
| 1579 | 6301 { |
| 6302 int i; | |
| 6303 | |
| 1602 | 6304 /* When "need_clear_subexpr" is set we don't need to save the values, only |
| 6305 * remember that this flag needs to be set again when restoring. */ | |
| 6306 bp->save_need_clear_subexpr = need_clear_subexpr; | |
| 6307 if (!need_clear_subexpr) | |
| 1579 | 6308 { |
| 1602 | 6309 for (i = 0; i < NSUBEXP; ++i) |
| 1579 | 6310 { |
| 1602 | 6311 if (REG_MULTI) |
| 6312 { | |
|
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parents:
10187
diff
changeset
|
6313 bp->save_start[i].se_u.pos = rex.reg_startpos[i]; |
|
d76ccdacb41e
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Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
6314 bp->save_end[i].se_u.pos = rex.reg_endpos[i]; |
| 1602 | 6315 } |
| 6316 else | |
| 6317 { | |
|
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parents:
10187
diff
changeset
|
6318 bp->save_start[i].se_u.ptr = rex.reg_startp[i]; |
|
d76ccdacb41e
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parents:
10187
diff
changeset
|
6319 bp->save_end[i].se_u.ptr = rex.reg_endp[i]; |
| 1602 | 6320 } |
| 1579 | 6321 } |
| 6322 } | |
| 6323 } | |
| 6324 | |
| 6325 /* | |
| 6326 * Restore the subexpr from "bp". | |
| 6327 */ | |
| 6328 static void | |
|
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Christian Brabandt <cb@256bit.org>
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7807
diff
changeset
|
6329 restore_subexpr(regbehind_T *bp) |
| 1579 | 6330 { |
| 6331 int i; | |
| 6332 | |
| 1602 | 6333 /* Only need to restore saved values when they are not to be cleared. */ |
| 6334 need_clear_subexpr = bp->save_need_clear_subexpr; | |
| 6335 if (!need_clear_subexpr) | |
| 1579 | 6336 { |
| 1602 | 6337 for (i = 0; i < NSUBEXP; ++i) |
| 1579 | 6338 { |
| 1602 | 6339 if (REG_MULTI) |
| 6340 { | |
|
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10187
diff
changeset
|
6341 rex.reg_startpos[i] = bp->save_start[i].se_u.pos; |
|
d76ccdacb41e
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10187
diff
changeset
|
6342 rex.reg_endpos[i] = bp->save_end[i].se_u.pos; |
| 1602 | 6343 } |
| 6344 else | |
| 6345 { | |
|
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10187
diff
changeset
|
6346 rex.reg_startp[i] = bp->save_start[i].se_u.ptr; |
|
d76ccdacb41e
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parents:
10187
diff
changeset
|
6347 rex.reg_endp[i] = bp->save_end[i].se_u.ptr; |
| 1602 | 6348 } |
| 1579 | 6349 } |
| 6350 } | |
| 6351 } | |
| 6352 | |
| 6353 /* | |
| 7 | 6354 * Advance reglnum, regline and reginput to the next line. |
| 6355 */ | |
| 6356 static void | |
|
7833
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Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
6357 reg_nextline(void) |
| 7 | 6358 { |
| 6359 regline = reg_getline(++reglnum); | |
| 6360 reginput = regline; | |
| 6361 fast_breakcheck(); | |
| 6362 } | |
| 6363 | |
| 6364 /* | |
| 6365 * Save the input line and position in a regsave_T. | |
| 6366 */ | |
| 6367 static void | |
|
7833
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Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
6368 reg_save(regsave_T *save, garray_T *gap) |
| 7 | 6369 { |
| 6370 if (REG_MULTI) | |
| 6371 { | |
| 6372 save->rs_u.pos.col = (colnr_T)(reginput - regline); | |
| 6373 save->rs_u.pos.lnum = reglnum; | |
| 6374 } | |
| 6375 else | |
| 6376 save->rs_u.ptr = reginput; | |
| 233 | 6377 save->rs_len = gap->ga_len; |
| 7 | 6378 } |
| 6379 | |
| 6380 /* | |
| 6381 * Restore the input line and position from a regsave_T. | |
| 6382 */ | |
| 6383 static void | |
|
7833
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Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
6384 reg_restore(regsave_T *save, garray_T *gap) |
| 7 | 6385 { |
| 6386 if (REG_MULTI) | |
| 6387 { | |
| 6388 if (reglnum != save->rs_u.pos.lnum) | |
| 6389 { | |
| 6390 /* only call reg_getline() when the line number changed to save | |
| 6391 * a bit of time */ | |
| 6392 reglnum = save->rs_u.pos.lnum; | |
| 6393 regline = reg_getline(reglnum); | |
| 6394 } | |
| 6395 reginput = regline + save->rs_u.pos.col; | |
| 6396 } | |
| 6397 else | |
| 6398 reginput = save->rs_u.ptr; | |
| 233 | 6399 gap->ga_len = save->rs_len; |
| 7 | 6400 } |
| 6401 | |
| 6402 /* | |
| 6403 * Return TRUE if current position is equal to saved position. | |
| 6404 */ | |
| 6405 static int | |
|
7833
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Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
6406 reg_save_equal(regsave_T *save) |
| 7 | 6407 { |
| 6408 if (REG_MULTI) | |
| 6409 return reglnum == save->rs_u.pos.lnum | |
| 6410 && reginput == regline + save->rs_u.pos.col; | |
| 6411 return reginput == save->rs_u.ptr; | |
| 6412 } | |
| 6413 | |
| 6414 /* | |
| 6415 * Tentatively set the sub-expression start to the current position (after | |
| 6416 * calling regmatch() they will have changed). Need to save the existing | |
| 6417 * values for when there is no match. | |
| 6418 * Use se_save() to use pointer (save_se_multi()) or position (save_se_one()), | |
| 6419 * depending on REG_MULTI. | |
| 6420 */ | |
| 6421 static void | |
|
7833
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Christian Brabandt <cb@256bit.org>
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7807
diff
changeset
|
6422 save_se_multi(save_se_T *savep, lpos_T *posp) |
| 7 | 6423 { |
| 6424 savep->se_u.pos = *posp; | |
| 6425 posp->lnum = reglnum; | |
| 6426 posp->col = (colnr_T)(reginput - regline); | |
| 6427 } | |
| 6428 | |
| 6429 static void | |
|
7833
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Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
6430 save_se_one(save_se_T *savep, char_u **pp) |
| 7 | 6431 { |
| 6432 savep->se_u.ptr = *pp; | |
| 6433 *pp = reginput; | |
| 6434 } | |
| 6435 | |
| 6436 /* | |
| 6437 * Compare a number with the operand of RE_LNUM, RE_COL or RE_VCOL. | |
| 6438 */ | |
| 6439 static int | |
|
7833
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Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
6440 re_num_cmp(long_u val, char_u *scan) |
| 7 | 6441 { |
| 6442 long_u n = OPERAND_MIN(scan); | |
| 6443 | |
| 6444 if (OPERAND_CMP(scan) == '>') | |
| 6445 return val > n; | |
| 6446 if (OPERAND_CMP(scan) == '<') | |
| 6447 return val < n; | |
| 6448 return val == n; | |
| 6449 } | |
| 6450 | |
|
4891
4c42efb4c098
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diff
changeset
|
6451 /* |
|
4c42efb4c098
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diff
changeset
|
6452 * Check whether a backreference matches. |
|
4c42efb4c098
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diff
changeset
|
6453 * Returns RA_FAIL, RA_NOMATCH or RA_MATCH. |
| 5504 | 6454 * If "bytelen" is not NULL, it is set to the byte length of the match in the |
| 6455 * last line. | |
|
4891
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updated for version 7.3.1191
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diff
changeset
|
6456 */ |
|
4c42efb4c098
updated for version 7.3.1191
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diff
changeset
|
6457 static int |
|
7833
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Christian Brabandt <cb@256bit.org>
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7807
diff
changeset
|
6458 match_with_backref( |
|
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
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parents:
7807
diff
changeset
|
6459 linenr_T start_lnum, |
|
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
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7807
diff
changeset
|
6460 colnr_T start_col, |
|
c079097365f3
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parents:
7807
diff
changeset
|
6461 linenr_T end_lnum, |
|
c079097365f3
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parents:
7807
diff
changeset
|
6462 colnr_T end_col, |
|
c079097365f3
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7807
diff
changeset
|
6463 int *bytelen) |
|
4891
4c42efb4c098
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diff
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|
6464 { |
|
4c42efb4c098
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diff
changeset
|
6465 linenr_T clnum = start_lnum; |
|
4c42efb4c098
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changeset
|
6466 colnr_T ccol = start_col; |
|
4c42efb4c098
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|
6467 int len; |
|
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changeset
|
6468 char_u *p; |
|
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changeset
|
6469 |
|
4c42efb4c098
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changeset
|
6470 if (bytelen != NULL) |
|
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|
6471 *bytelen = 0; |
|
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changeset
|
6472 for (;;) |
|
4c42efb4c098
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diff
changeset
|
6473 { |
|
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changeset
|
6474 /* Since getting one line may invalidate the other, need to make copy. |
|
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|
6475 * Slow! */ |
|
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changeset
|
6476 if (regline != reg_tofree) |
|
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|
6477 { |
|
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changeset
|
6478 len = (int)STRLEN(regline); |
|
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|
6479 if (reg_tofree == NULL || len >= (int)reg_tofreelen) |
|
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|
6480 { |
|
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changeset
|
6481 len += 50; /* get some extra */ |
|
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|
6482 vim_free(reg_tofree); |
|
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|
6483 reg_tofree = alloc(len); |
|
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|
6484 if (reg_tofree == NULL) |
|
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|
6485 return RA_FAIL; /* out of memory!*/ |
|
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|
6486 reg_tofreelen = len; |
|
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|
6487 } |
|
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changeset
|
6488 STRCPY(reg_tofree, regline); |
|
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|
6489 reginput = reg_tofree + (reginput - regline); |
|
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|
6490 regline = reg_tofree; |
|
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|
6491 } |
|
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changeset
|
6492 |
|
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changeset
|
6493 /* Get the line to compare with. */ |
|
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changeset
|
6494 p = reg_getline(clnum); |
|
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changeset
|
6495 if (clnum == end_lnum) |
|
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|
6496 len = end_col - ccol; |
|
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changeset
|
6497 else |
|
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changeset
|
6498 len = (int)STRLEN(p + ccol); |
|
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|
6499 |
|
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changeset
|
6500 if (cstrncmp(p + ccol, reginput, &len) != 0) |
|
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changeset
|
6501 return RA_NOMATCH; /* doesn't match */ |
|
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changeset
|
6502 if (bytelen != NULL) |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6503 *bytelen += len; |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6504 if (clnum == end_lnum) |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6505 break; /* match and at end! */ |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
6506 if (reglnum >= rex.reg_maxline) |
|
4891
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6507 return RA_NOMATCH; /* text too short */ |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6508 |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6509 /* Advance to next line. */ |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6510 reg_nextline(); |
| 5504 | 6511 if (bytelen != NULL) |
| 6512 *bytelen = 0; | |
|
4891
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6513 ++clnum; |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6514 ccol = 0; |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6515 if (got_int) |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6516 return RA_FAIL; |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6517 } |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6518 |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6519 /* found a match! Note that regline may now point to a copy of the line, |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6520 * that should not matter. */ |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6521 return RA_MATCH; |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6522 } |
| 7 | 6523 |
| 4444 | 6524 #ifdef BT_REGEXP_DUMP |
| 7 | 6525 |
| 6526 /* | |
| 6527 * regdump - dump a regexp onto stdout in vaguely comprehensible form | |
| 6528 */ | |
| 6529 static void | |
|
7833
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
6530 regdump(char_u *pattern, bt_regprog_T *r) |
| 7 | 6531 { |
| 6532 char_u *s; | |
| 6533 int op = EXACTLY; /* Arbitrary non-END op. */ | |
| 6534 char_u *next; | |
| 6535 char_u *end = NULL; | |
| 4444 | 6536 FILE *f; |
| 6537 | |
| 6538 #ifdef BT_REGEXP_LOG | |
| 6539 f = fopen("bt_regexp_log.log", "a"); | |
| 6540 #else | |
| 6541 f = stdout; | |
| 6542 #endif | |
| 6543 if (f == NULL) | |
| 6544 return; | |
| 6545 fprintf(f, "-------------------------------------\n\r\nregcomp(%s):\r\n", pattern); | |
| 7 | 6546 |
| 6547 s = r->program + 1; | |
| 6548 /* | |
| 6549 * Loop until we find the END that isn't before a referred next (an END | |
| 6550 * can also appear in a NOMATCH operand). | |
| 6551 */ | |
| 6552 while (op != END || s <= end) | |
| 6553 { | |
| 6554 op = OP(s); | |
| 4444 | 6555 fprintf(f, "%2d%s", (int)(s - r->program), regprop(s)); /* Where, what. */ |
| 7 | 6556 next = regnext(s); |
| 6557 if (next == NULL) /* Next ptr. */ | |
| 4444 | 6558 fprintf(f, "(0)"); |
| 7 | 6559 else |
| 4444 | 6560 fprintf(f, "(%d)", (int)((s - r->program) + (next - s))); |
| 7 | 6561 if (end < next) |
| 6562 end = next; | |
| 6563 if (op == BRACE_LIMITS) | |
| 6564 { | |
|
4746
d1376091d18b
updated for version 7.3.1120
Bram Moolenaar <bram@vim.org>
parents:
4744
diff
changeset
|
6565 /* Two ints */ |
| 4444 | 6566 fprintf(f, " minval %ld, maxval %ld", OPERAND_MIN(s), OPERAND_MAX(s)); |
| 7 | 6567 s += 8; |
| 6568 } | |
|
4746
d1376091d18b
updated for version 7.3.1120
Bram Moolenaar <bram@vim.org>
parents:
4744
diff
changeset
|
6569 else if (op == BEHIND || op == NOBEHIND) |
|
d1376091d18b
updated for version 7.3.1120
Bram Moolenaar <bram@vim.org>
parents:
4744
diff
changeset
|
6570 { |
|
d1376091d18b
updated for version 7.3.1120
Bram Moolenaar <bram@vim.org>
parents:
4744
diff
changeset
|
6571 /* one int */ |
|
d1376091d18b
updated for version 7.3.1120
Bram Moolenaar <bram@vim.org>
parents:
4744
diff
changeset
|
6572 fprintf(f, " count %ld", OPERAND_MIN(s)); |
|
d1376091d18b
updated for version 7.3.1120
Bram Moolenaar <bram@vim.org>
parents:
4744
diff
changeset
|
6573 s += 4; |
|
d1376091d18b
updated for version 7.3.1120
Bram Moolenaar <bram@vim.org>
parents:
4744
diff
changeset
|
6574 } |
|
4770
b20dbf3a5370
updated for version 7.3.1132
Bram Moolenaar <bram@vim.org>
parents:
4762
diff
changeset
|
6575 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
|
6576 { |
|
b20dbf3a5370
updated for version 7.3.1132
Bram Moolenaar <bram@vim.org>
parents:
4762
diff
changeset
|
6577 /* one int plus comperator */ |
|
b20dbf3a5370
updated for version 7.3.1132
Bram Moolenaar <bram@vim.org>
parents:
4762
diff
changeset
|
6578 fprintf(f, " count %ld", OPERAND_MIN(s)); |
|
b20dbf3a5370
updated for version 7.3.1132
Bram Moolenaar <bram@vim.org>
parents:
4762
diff
changeset
|
6579 s += 5; |
|
b20dbf3a5370
updated for version 7.3.1132
Bram Moolenaar <bram@vim.org>
parents:
4762
diff
changeset
|
6580 } |
| 7 | 6581 s += 3; |
| 6582 if (op == ANYOF || op == ANYOF + ADD_NL | |
| 6583 || op == ANYBUT || op == ANYBUT + ADD_NL | |
| 6584 || op == EXACTLY) | |
| 6585 { | |
| 6586 /* Literal string, where present. */ | |
| 4444 | 6587 fprintf(f, "\nxxxxxxxxx\n"); |
| 7 | 6588 while (*s != NUL) |
| 4444 | 6589 fprintf(f, "%c", *s++); |
| 6590 fprintf(f, "\nxxxxxxxxx\n"); | |
| 7 | 6591 s++; |
| 6592 } | |
| 4444 | 6593 fprintf(f, "\r\n"); |
| 7 | 6594 } |
| 6595 | |
| 6596 /* Header fields of interest. */ | |
| 6597 if (r->regstart != NUL) | |
| 4444 | 6598 fprintf(f, "start `%s' 0x%x; ", r->regstart < 256 |
| 7 | 6599 ? (char *)transchar(r->regstart) |
| 6600 : "multibyte", r->regstart); | |
| 6601 if (r->reganch) | |
| 4444 | 6602 fprintf(f, "anchored; "); |
| 7 | 6603 if (r->regmust != NULL) |
| 4444 | 6604 fprintf(f, "must have \"%s\"", r->regmust); |
| 6605 fprintf(f, "\r\n"); | |
| 6606 | |
| 6607 #ifdef BT_REGEXP_LOG | |
| 6608 fclose(f); | |
| 6609 #endif | |
| 7 | 6610 } |
| 4444 | 6611 #endif /* BT_REGEXP_DUMP */ |
| 6612 | |
| 6613 #ifdef DEBUG | |
| 7 | 6614 /* |
| 6615 * regprop - printable representation of opcode | |
| 6616 */ | |
| 6617 static char_u * | |
|
7833
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
6618 regprop(char_u *op) |
| 7 | 6619 { |
| 4444 | 6620 char *p; |
| 6621 static char buf[50]; | |
| 6622 | |
| 6623 STRCPY(buf, ":"); | |
| 6624 | |
| 6625 switch ((int) OP(op)) | |
| 7 | 6626 { |
| 6627 case BOL: | |
| 6628 p = "BOL"; | |
| 6629 break; | |
| 6630 case EOL: | |
| 6631 p = "EOL"; | |
| 6632 break; | |
| 6633 case RE_BOF: | |
| 6634 p = "BOF"; | |
| 6635 break; | |
| 6636 case RE_EOF: | |
| 6637 p = "EOF"; | |
| 6638 break; | |
| 6639 case CURSOR: | |
| 6640 p = "CURSOR"; | |
| 6641 break; | |
| 639 | 6642 case RE_VISUAL: |
| 6643 p = "RE_VISUAL"; | |
| 6644 break; | |
| 7 | 6645 case RE_LNUM: |
| 6646 p = "RE_LNUM"; | |
| 6647 break; | |
| 639 | 6648 case RE_MARK: |
| 6649 p = "RE_MARK"; | |
| 6650 break; | |
| 7 | 6651 case RE_COL: |
| 6652 p = "RE_COL"; | |
| 6653 break; | |
| 6654 case RE_VCOL: | |
| 6655 p = "RE_VCOL"; | |
| 6656 break; | |
| 6657 case BOW: | |
| 6658 p = "BOW"; | |
| 6659 break; | |
| 6660 case EOW: | |
| 6661 p = "EOW"; | |
| 6662 break; | |
| 6663 case ANY: | |
| 6664 p = "ANY"; | |
| 6665 break; | |
| 6666 case ANY + ADD_NL: | |
| 6667 p = "ANY+NL"; | |
| 6668 break; | |
| 6669 case ANYOF: | |
| 6670 p = "ANYOF"; | |
| 6671 break; | |
| 6672 case ANYOF + ADD_NL: | |
| 6673 p = "ANYOF+NL"; | |
| 6674 break; | |
| 6675 case ANYBUT: | |
| 6676 p = "ANYBUT"; | |
| 6677 break; | |
| 6678 case ANYBUT + ADD_NL: | |
| 6679 p = "ANYBUT+NL"; | |
| 6680 break; | |
| 6681 case IDENT: | |
| 6682 p = "IDENT"; | |
| 6683 break; | |
| 6684 case IDENT + ADD_NL: | |
| 6685 p = "IDENT+NL"; | |
| 6686 break; | |
| 6687 case SIDENT: | |
| 6688 p = "SIDENT"; | |
| 6689 break; | |
| 6690 case SIDENT + ADD_NL: | |
| 6691 p = "SIDENT+NL"; | |
| 6692 break; | |
| 6693 case KWORD: | |
| 6694 p = "KWORD"; | |
| 6695 break; | |
| 6696 case KWORD + ADD_NL: | |
| 6697 p = "KWORD+NL"; | |
| 6698 break; | |
| 6699 case SKWORD: | |
| 6700 p = "SKWORD"; | |
| 6701 break; | |
| 6702 case SKWORD + ADD_NL: | |
| 6703 p = "SKWORD+NL"; | |
| 6704 break; | |
| 6705 case FNAME: | |
| 6706 p = "FNAME"; | |
| 6707 break; | |
| 6708 case FNAME + ADD_NL: | |
| 6709 p = "FNAME+NL"; | |
| 6710 break; | |
| 6711 case SFNAME: | |
| 6712 p = "SFNAME"; | |
| 6713 break; | |
| 6714 case SFNAME + ADD_NL: | |
| 6715 p = "SFNAME+NL"; | |
| 6716 break; | |
| 6717 case PRINT: | |
| 6718 p = "PRINT"; | |
| 6719 break; | |
| 6720 case PRINT + ADD_NL: | |
| 6721 p = "PRINT+NL"; | |
| 6722 break; | |
| 6723 case SPRINT: | |
| 6724 p = "SPRINT"; | |
| 6725 break; | |
| 6726 case SPRINT + ADD_NL: | |
| 6727 p = "SPRINT+NL"; | |
| 6728 break; | |
| 6729 case WHITE: | |
| 6730 p = "WHITE"; | |
| 6731 break; | |
| 6732 case WHITE + ADD_NL: | |
| 6733 p = "WHITE+NL"; | |
| 6734 break; | |
| 6735 case NWHITE: | |
| 6736 p = "NWHITE"; | |
| 6737 break; | |
| 6738 case NWHITE + ADD_NL: | |
| 6739 p = "NWHITE+NL"; | |
| 6740 break; | |
| 6741 case DIGIT: | |
| 6742 p = "DIGIT"; | |
| 6743 break; | |
| 6744 case DIGIT + ADD_NL: | |
| 6745 p = "DIGIT+NL"; | |
| 6746 break; | |
| 6747 case NDIGIT: | |
| 6748 p = "NDIGIT"; | |
| 6749 break; | |
| 6750 case NDIGIT + ADD_NL: | |
| 6751 p = "NDIGIT+NL"; | |
| 6752 break; | |
| 6753 case HEX: | |
| 6754 p = "HEX"; | |
| 6755 break; | |
| 6756 case HEX + ADD_NL: | |
| 6757 p = "HEX+NL"; | |
| 6758 break; | |
| 6759 case NHEX: | |
| 6760 p = "NHEX"; | |
| 6761 break; | |
| 6762 case NHEX + ADD_NL: | |
| 6763 p = "NHEX+NL"; | |
| 6764 break; | |
| 6765 case OCTAL: | |
| 6766 p = "OCTAL"; | |
| 6767 break; | |
| 6768 case OCTAL + ADD_NL: | |
| 6769 p = "OCTAL+NL"; | |
| 6770 break; | |
| 6771 case NOCTAL: | |
| 6772 p = "NOCTAL"; | |
| 6773 break; | |
| 6774 case NOCTAL + ADD_NL: | |
| 6775 p = "NOCTAL+NL"; | |
| 6776 break; | |
| 6777 case WORD: | |
| 6778 p = "WORD"; | |
| 6779 break; | |
| 6780 case WORD + ADD_NL: | |
| 6781 p = "WORD+NL"; | |
| 6782 break; | |
| 6783 case NWORD: | |
| 6784 p = "NWORD"; | |
| 6785 break; | |
| 6786 case NWORD + ADD_NL: | |
| 6787 p = "NWORD+NL"; | |
| 6788 break; | |
| 6789 case HEAD: | |
| 6790 p = "HEAD"; | |
| 6791 break; | |
| 6792 case HEAD + ADD_NL: | |
| 6793 p = "HEAD+NL"; | |
| 6794 break; | |
| 6795 case NHEAD: | |
| 6796 p = "NHEAD"; | |
| 6797 break; | |
| 6798 case NHEAD + ADD_NL: | |
| 6799 p = "NHEAD+NL"; | |
| 6800 break; | |
| 6801 case ALPHA: | |
| 6802 p = "ALPHA"; | |
| 6803 break; | |
| 6804 case ALPHA + ADD_NL: | |
| 6805 p = "ALPHA+NL"; | |
| 6806 break; | |
| 6807 case NALPHA: | |
| 6808 p = "NALPHA"; | |
| 6809 break; | |
| 6810 case NALPHA + ADD_NL: | |
| 6811 p = "NALPHA+NL"; | |
| 6812 break; | |
| 6813 case LOWER: | |
| 6814 p = "LOWER"; | |
| 6815 break; | |
| 6816 case LOWER + ADD_NL: | |
| 6817 p = "LOWER+NL"; | |
| 6818 break; | |
| 6819 case NLOWER: | |
| 6820 p = "NLOWER"; | |
| 6821 break; | |
| 6822 case NLOWER + ADD_NL: | |
| 6823 p = "NLOWER+NL"; | |
| 6824 break; | |
| 6825 case UPPER: | |
| 6826 p = "UPPER"; | |
| 6827 break; | |
| 6828 case UPPER + ADD_NL: | |
| 6829 p = "UPPER+NL"; | |
| 6830 break; | |
| 6831 case NUPPER: | |
| 6832 p = "NUPPER"; | |
| 6833 break; | |
| 6834 case NUPPER + ADD_NL: | |
| 6835 p = "NUPPER+NL"; | |
| 6836 break; | |
| 6837 case BRANCH: | |
| 6838 p = "BRANCH"; | |
| 6839 break; | |
| 6840 case EXACTLY: | |
| 6841 p = "EXACTLY"; | |
| 6842 break; | |
| 6843 case NOTHING: | |
| 6844 p = "NOTHING"; | |
| 6845 break; | |
| 6846 case BACK: | |
| 6847 p = "BACK"; | |
| 6848 break; | |
| 6849 case END: | |
| 6850 p = "END"; | |
| 6851 break; | |
| 6852 case MOPEN + 0: | |
| 6853 p = "MATCH START"; | |
| 6854 break; | |
| 6855 case MOPEN + 1: | |
| 6856 case MOPEN + 2: | |
| 6857 case MOPEN + 3: | |
| 6858 case MOPEN + 4: | |
| 6859 case MOPEN + 5: | |
| 6860 case MOPEN + 6: | |
| 6861 case MOPEN + 7: | |
| 6862 case MOPEN + 8: | |
| 6863 case MOPEN + 9: | |
| 6864 sprintf(buf + STRLEN(buf), "MOPEN%d", OP(op) - MOPEN); | |
| 6865 p = NULL; | |
| 6866 break; | |
| 6867 case MCLOSE + 0: | |
| 6868 p = "MATCH END"; | |
| 6869 break; | |
| 6870 case MCLOSE + 1: | |
| 6871 case MCLOSE + 2: | |
| 6872 case MCLOSE + 3: | |
| 6873 case MCLOSE + 4: | |
| 6874 case MCLOSE + 5: | |
| 6875 case MCLOSE + 6: | |
| 6876 case MCLOSE + 7: | |
| 6877 case MCLOSE + 8: | |
| 6878 case MCLOSE + 9: | |
| 6879 sprintf(buf + STRLEN(buf), "MCLOSE%d", OP(op) - MCLOSE); | |
| 6880 p = NULL; | |
| 6881 break; | |
| 6882 case BACKREF + 1: | |
| 6883 case BACKREF + 2: | |
| 6884 case BACKREF + 3: | |
| 6885 case BACKREF + 4: | |
| 6886 case BACKREF + 5: | |
| 6887 case BACKREF + 6: | |
| 6888 case BACKREF + 7: | |
| 6889 case BACKREF + 8: | |
| 6890 case BACKREF + 9: | |
| 6891 sprintf(buf + STRLEN(buf), "BACKREF%d", OP(op) - BACKREF); | |
| 6892 p = NULL; | |
| 6893 break; | |
| 6894 case NOPEN: | |
| 6895 p = "NOPEN"; | |
| 6896 break; | |
| 6897 case NCLOSE: | |
| 6898 p = "NCLOSE"; | |
| 6899 break; | |
| 6900 #ifdef FEAT_SYN_HL | |
| 6901 case ZOPEN + 1: | |
| 6902 case ZOPEN + 2: | |
| 6903 case ZOPEN + 3: | |
| 6904 case ZOPEN + 4: | |
| 6905 case ZOPEN + 5: | |
| 6906 case ZOPEN + 6: | |
| 6907 case ZOPEN + 7: | |
| 6908 case ZOPEN + 8: | |
| 6909 case ZOPEN + 9: | |
| 6910 sprintf(buf + STRLEN(buf), "ZOPEN%d", OP(op) - ZOPEN); | |
| 6911 p = NULL; | |
| 6912 break; | |
| 6913 case ZCLOSE + 1: | |
| 6914 case ZCLOSE + 2: | |
| 6915 case ZCLOSE + 3: | |
| 6916 case ZCLOSE + 4: | |
| 6917 case ZCLOSE + 5: | |
| 6918 case ZCLOSE + 6: | |
| 6919 case ZCLOSE + 7: | |
| 6920 case ZCLOSE + 8: | |
| 6921 case ZCLOSE + 9: | |
| 6922 sprintf(buf + STRLEN(buf), "ZCLOSE%d", OP(op) - ZCLOSE); | |
| 6923 p = NULL; | |
| 6924 break; | |
| 6925 case ZREF + 1: | |
| 6926 case ZREF + 2: | |
| 6927 case ZREF + 3: | |
| 6928 case ZREF + 4: | |
| 6929 case ZREF + 5: | |
| 6930 case ZREF + 6: | |
| 6931 case ZREF + 7: | |
| 6932 case ZREF + 8: | |
| 6933 case ZREF + 9: | |
| 6934 sprintf(buf + STRLEN(buf), "ZREF%d", OP(op) - ZREF); | |
| 6935 p = NULL; | |
| 6936 break; | |
| 6937 #endif | |
| 6938 case STAR: | |
| 6939 p = "STAR"; | |
| 6940 break; | |
| 6941 case PLUS: | |
| 6942 p = "PLUS"; | |
| 6943 break; | |
| 6944 case NOMATCH: | |
| 6945 p = "NOMATCH"; | |
| 6946 break; | |
| 6947 case MATCH: | |
| 6948 p = "MATCH"; | |
| 6949 break; | |
| 6950 case BEHIND: | |
| 6951 p = "BEHIND"; | |
| 6952 break; | |
| 6953 case NOBEHIND: | |
| 6954 p = "NOBEHIND"; | |
| 6955 break; | |
| 6956 case SUBPAT: | |
| 6957 p = "SUBPAT"; | |
| 6958 break; | |
| 6959 case BRACE_LIMITS: | |
| 6960 p = "BRACE_LIMITS"; | |
| 6961 break; | |
| 6962 case BRACE_SIMPLE: | |
| 6963 p = "BRACE_SIMPLE"; | |
| 6964 break; | |
| 6965 case BRACE_COMPLEX + 0: | |
| 6966 case BRACE_COMPLEX + 1: | |
| 6967 case BRACE_COMPLEX + 2: | |
| 6968 case BRACE_COMPLEX + 3: | |
| 6969 case BRACE_COMPLEX + 4: | |
| 6970 case BRACE_COMPLEX + 5: | |
| 6971 case BRACE_COMPLEX + 6: | |
| 6972 case BRACE_COMPLEX + 7: | |
| 6973 case BRACE_COMPLEX + 8: | |
| 6974 case BRACE_COMPLEX + 9: | |
| 6975 sprintf(buf + STRLEN(buf), "BRACE_COMPLEX%d", OP(op) - BRACE_COMPLEX); | |
| 6976 p = NULL; | |
| 6977 break; | |
| 6978 #ifdef FEAT_MBYTE | |
| 6979 case MULTIBYTECODE: | |
| 6980 p = "MULTIBYTECODE"; | |
| 6981 break; | |
| 6982 #endif | |
| 6983 case NEWL: | |
| 6984 p = "NEWL"; | |
| 6985 break; | |
| 6986 default: | |
| 6987 sprintf(buf + STRLEN(buf), "corrupt %d", OP(op)); | |
| 6988 p = NULL; | |
| 6989 break; | |
| 6990 } | |
| 6991 if (p != NULL) | |
| 4444 | 6992 STRCAT(buf, p); |
| 6993 return (char_u *)buf; | |
| 7 | 6994 } |
| 4444 | 6995 #endif /* DEBUG */ |
| 7 | 6996 |
| 6203 | 6997 /* |
| 6998 * Used in a place where no * or \+ can follow. | |
| 6999 */ | |
| 7000 static int | |
|
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Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
7001 re_mult_next(char *what) |
| 6203 | 7002 { |
| 7003 if (re_multi_type(peekchr()) == MULTI_MULT) | |
| 7004 EMSG2_RET_FAIL(_("E888: (NFA regexp) cannot repeat %s"), what); | |
| 7005 return OK; | |
| 7006 } | |
| 7007 | |
| 7 | 7008 #ifdef FEAT_MBYTE |
|
7805
0b6c37dd858d
commit https://github.com/vim/vim/commit/baaa7e9ec7398a813e21285c272fa99792642077
Christian Brabandt <cb@256bit.org>
parents:
7009
diff
changeset
|
7009 static void mb_decompose(int c, int *c1, int *c2, int *c3); |
| 7 | 7010 |
| 7011 typedef struct | |
| 7012 { | |
| 7013 int a, b, c; | |
| 7014 } decomp_T; | |
| 7015 | |
| 7016 | |
| 7017 /* 0xfb20 - 0xfb4f */ | |
| 297 | 7018 static decomp_T decomp_table[0xfb4f-0xfb20+1] = |
| 7 | 7019 { |
| 7020 {0x5e2,0,0}, /* 0xfb20 alt ayin */ | |
| 7021 {0x5d0,0,0}, /* 0xfb21 alt alef */ | |
| 7022 {0x5d3,0,0}, /* 0xfb22 alt dalet */ | |
| 7023 {0x5d4,0,0}, /* 0xfb23 alt he */ | |
| 7024 {0x5db,0,0}, /* 0xfb24 alt kaf */ | |
| 7025 {0x5dc,0,0}, /* 0xfb25 alt lamed */ | |
| 7026 {0x5dd,0,0}, /* 0xfb26 alt mem-sofit */ | |
| 7027 {0x5e8,0,0}, /* 0xfb27 alt resh */ | |
| 7028 {0x5ea,0,0}, /* 0xfb28 alt tav */ | |
| 7029 {'+', 0, 0}, /* 0xfb29 alt plus */ | |
| 7030 {0x5e9, 0x5c1, 0}, /* 0xfb2a shin+shin-dot */ | |
| 7031 {0x5e9, 0x5c2, 0}, /* 0xfb2b shin+sin-dot */ | |
| 7032 {0x5e9, 0x5c1, 0x5bc}, /* 0xfb2c shin+shin-dot+dagesh */ | |
| 7033 {0x5e9, 0x5c2, 0x5bc}, /* 0xfb2d shin+sin-dot+dagesh */ | |
| 7034 {0x5d0, 0x5b7, 0}, /* 0xfb2e alef+patah */ | |
| 7035 {0x5d0, 0x5b8, 0}, /* 0xfb2f alef+qamats */ | |
| 7036 {0x5d0, 0x5b4, 0}, /* 0xfb30 alef+hiriq */ | |
| 7037 {0x5d1, 0x5bc, 0}, /* 0xfb31 bet+dagesh */ | |
| 7038 {0x5d2, 0x5bc, 0}, /* 0xfb32 gimel+dagesh */ | |
| 7039 {0x5d3, 0x5bc, 0}, /* 0xfb33 dalet+dagesh */ | |
| 7040 {0x5d4, 0x5bc, 0}, /* 0xfb34 he+dagesh */ | |
| 7041 {0x5d5, 0x5bc, 0}, /* 0xfb35 vav+dagesh */ | |
| 7042 {0x5d6, 0x5bc, 0}, /* 0xfb36 zayin+dagesh */ | |
| 7043 {0xfb37, 0, 0}, /* 0xfb37 -- UNUSED */ | |
| 7044 {0x5d8, 0x5bc, 0}, /* 0xfb38 tet+dagesh */ | |
| 7045 {0x5d9, 0x5bc, 0}, /* 0xfb39 yud+dagesh */ | |
| 7046 {0x5da, 0x5bc, 0}, /* 0xfb3a kaf sofit+dagesh */ | |
| 7047 {0x5db, 0x5bc, 0}, /* 0xfb3b kaf+dagesh */ | |
| 7048 {0x5dc, 0x5bc, 0}, /* 0xfb3c lamed+dagesh */ | |
| 7049 {0xfb3d, 0, 0}, /* 0xfb3d -- UNUSED */ | |
| 7050 {0x5de, 0x5bc, 0}, /* 0xfb3e mem+dagesh */ | |
| 7051 {0xfb3f, 0, 0}, /* 0xfb3f -- UNUSED */ | |
| 7052 {0x5e0, 0x5bc, 0}, /* 0xfb40 nun+dagesh */ | |
| 7053 {0x5e1, 0x5bc, 0}, /* 0xfb41 samech+dagesh */ | |
| 7054 {0xfb42, 0, 0}, /* 0xfb42 -- UNUSED */ | |
| 7055 {0x5e3, 0x5bc, 0}, /* 0xfb43 pe sofit+dagesh */ | |
| 7056 {0x5e4, 0x5bc,0}, /* 0xfb44 pe+dagesh */ | |
| 7057 {0xfb45, 0, 0}, /* 0xfb45 -- UNUSED */ | |
| 7058 {0x5e6, 0x5bc, 0}, /* 0xfb46 tsadi+dagesh */ | |
| 7059 {0x5e7, 0x5bc, 0}, /* 0xfb47 qof+dagesh */ | |
| 7060 {0x5e8, 0x5bc, 0}, /* 0xfb48 resh+dagesh */ | |
| 7061 {0x5e9, 0x5bc, 0}, /* 0xfb49 shin+dagesh */ | |
| 7062 {0x5ea, 0x5bc, 0}, /* 0xfb4a tav+dagesh */ | |
| 7063 {0x5d5, 0x5b9, 0}, /* 0xfb4b vav+holam */ | |
| 7064 {0x5d1, 0x5bf, 0}, /* 0xfb4c bet+rafe */ | |
| 7065 {0x5db, 0x5bf, 0}, /* 0xfb4d kaf+rafe */ | |
| 7066 {0x5e4, 0x5bf, 0}, /* 0xfb4e pe+rafe */ | |
| 7067 {0x5d0, 0x5dc, 0} /* 0xfb4f alef-lamed */ | |
| 7068 }; | |
| 7069 | |
| 7070 static void | |
|
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Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
7071 mb_decompose(int c, int *c1, int *c2, int *c3) |
| 7 | 7072 { |
| 7073 decomp_T d; | |
| 7074 | |
|
4505
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Bram Moolenaar <bram@vim.org>
parents:
4466
diff
changeset
|
7075 if (c >= 0xfb20 && c <= 0xfb4f) |
| 7 | 7076 { |
| 7077 d = decomp_table[c - 0xfb20]; | |
| 7078 *c1 = d.a; | |
| 7079 *c2 = d.b; | |
| 7080 *c3 = d.c; | |
| 7081 } | |
| 7082 else | |
| 7083 { | |
| 7084 *c1 = c; | |
| 7085 *c2 = *c3 = 0; | |
| 7086 } | |
| 7087 } | |
| 7088 #endif | |
| 7089 | |
| 7090 /* | |
|
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Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7091 * Compare two strings, ignore case if rex.reg_ic set. |
| 7 | 7092 * Return 0 if strings match, non-zero otherwise. |
| 7093 * Correct the length "*n" when composing characters are ignored. | |
| 7094 */ | |
| 7095 static int | |
|
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commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
7096 cstrncmp(char_u *s1, char_u *s2, int *n) |
| 7 | 7097 { |
| 7098 int result; | |
| 7099 | |
|
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commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7100 if (!rex.reg_ic) |
| 7 | 7101 result = STRNCMP(s1, s2, *n); |
| 7102 else | |
| 7103 result = MB_STRNICMP(s1, s2, *n); | |
| 7104 | |
| 7105 #ifdef FEAT_MBYTE | |
| 7106 /* if it failed and it's utf8 and we want to combineignore: */ | |
|
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Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7107 if (result != 0 && enc_utf8 && rex.reg_icombine) |
| 7 | 7108 { |
| 7109 char_u *str1, *str2; | |
| 7110 int c1, c2, c11, c12; | |
| 7111 int junk; | |
| 7112 | |
| 7113 /* we have to handle the strcmp ourselves, since it is necessary to | |
| 7114 * deal with the composing characters by ignoring them: */ | |
| 7115 str1 = s1; | |
| 7116 str2 = s2; | |
| 7117 c1 = c2 = 0; | |
| 507 | 7118 while ((int)(str1 - s1) < *n) |
| 7 | 7119 { |
| 7120 c1 = mb_ptr2char_adv(&str1); | |
| 7121 c2 = mb_ptr2char_adv(&str2); | |
| 7122 | |
| 7123 /* decompose the character if necessary, into 'base' characters | |
| 7124 * because I don't care about Arabic, I will hard-code the Hebrew | |
| 7125 * which I *do* care about! So sue me... */ | |
|
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Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7126 if (c1 != c2 && (!rex.reg_ic || utf_fold(c1) != utf_fold(c2))) |
| 7 | 7127 { |
| 7128 /* decomposition necessary? */ | |
| 7129 mb_decompose(c1, &c11, &junk, &junk); | |
| 7130 mb_decompose(c2, &c12, &junk, &junk); | |
| 7131 c1 = c11; | |
| 7132 c2 = c12; | |
|
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commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7133 if (c11 != c12 |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7134 && (!rex.reg_ic || utf_fold(c11) != utf_fold(c12))) |
| 7 | 7135 break; |
| 7136 } | |
| 7137 } | |
| 7138 result = c2 - c1; | |
| 7139 if (result == 0) | |
| 7140 *n = (int)(str2 - s2); | |
| 7141 } | |
| 7142 #endif | |
| 7143 | |
| 7144 return result; | |
| 7145 } | |
| 7146 | |
| 7147 /* | |
| 7148 * cstrchr: This function is used a lot for simple searches, keep it fast! | |
| 7149 */ | |
| 7150 static char_u * | |
|
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Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
7151 cstrchr(char_u *s, int c) |
| 7 | 7152 { |
| 7153 char_u *p; | |
| 7154 int cc; | |
| 7155 | |
|
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Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7156 if (!rex.reg_ic |
| 7 | 7157 #ifdef FEAT_MBYTE |
| 7158 || (!enc_utf8 && mb_char2len(c) > 1) | |
| 7159 #endif | |
| 7160 ) | |
| 7161 return vim_strchr(s, c); | |
| 7162 | |
| 7163 /* tolower() and toupper() can be slow, comparing twice should be a lot | |
| 7164 * faster (esp. when using MS Visual C++!). | |
| 7165 * For UTF-8 need to use folded case. */ | |
| 7166 #ifdef FEAT_MBYTE | |
| 7167 if (enc_utf8 && c > 0x80) | |
| 7168 cc = utf_fold(c); | |
| 7169 else | |
| 7170 #endif | |
| 1347 | 7171 if (MB_ISUPPER(c)) |
| 7172 cc = MB_TOLOWER(c); | |
| 7173 else if (MB_ISLOWER(c)) | |
| 7174 cc = MB_TOUPPER(c); | |
| 7 | 7175 else |
| 7176 return vim_strchr(s, c); | |
| 7177 | |
| 7178 #ifdef FEAT_MBYTE | |
| 7179 if (has_mbyte) | |
| 7180 { | |
| 474 | 7181 for (p = s; *p != NUL; p += (*mb_ptr2len)(p)) |
| 7 | 7182 { |
| 7183 if (enc_utf8 && c > 0x80) | |
| 7184 { | |
| 7185 if (utf_fold(utf_ptr2char(p)) == cc) | |
| 7186 return p; | |
| 7187 } | |
| 7188 else if (*p == c || *p == cc) | |
| 7189 return p; | |
| 7190 } | |
| 7191 } | |
| 7192 else | |
| 7193 #endif | |
| 7194 /* Faster version for when there are no multi-byte characters. */ | |
| 7195 for (p = s; *p != NUL; ++p) | |
| 7196 if (*p == c || *p == cc) | |
| 7197 return p; | |
| 7198 | |
| 7199 return NULL; | |
| 7200 } | |
| 7201 | |
| 7202 /*************************************************************** | |
| 7203 * regsub stuff * | |
| 7204 ***************************************************************/ | |
| 7205 | |
| 7206 /* | |
| 7207 * We should define ftpr as a pointer to a function returning a pointer to | |
| 7208 * a function returning a pointer to a function ... | |
| 7209 * This is impossible, so we declare a pointer to a function returning a | |
| 7210 * pointer to a function returning void. This should work for all compilers. | |
| 7211 */ | |
|
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Christian Brabandt <cb@256bit.org>
parents:
7009
diff
changeset
|
7212 typedef void (*(*fptr_T)(int *, int))(); |
|
0b6c37dd858d
commit https://github.com/vim/vim/commit/baaa7e9ec7398a813e21285c272fa99792642077
Christian Brabandt <cb@256bit.org>
parents:
7009
diff
changeset
|
7213 |
|
0b6c37dd858d
commit https://github.com/vim/vim/commit/baaa7e9ec7398a813e21285c272fa99792642077
Christian Brabandt <cb@256bit.org>
parents:
7009
diff
changeset
|
7214 static fptr_T do_upper(int *, int); |
|
0b6c37dd858d
commit https://github.com/vim/vim/commit/baaa7e9ec7398a813e21285c272fa99792642077
Christian Brabandt <cb@256bit.org>
parents:
7009
diff
changeset
|
7215 static fptr_T do_Upper(int *, int); |
|
0b6c37dd858d
commit https://github.com/vim/vim/commit/baaa7e9ec7398a813e21285c272fa99792642077
Christian Brabandt <cb@256bit.org>
parents:
7009
diff
changeset
|
7216 static fptr_T do_lower(int *, int); |
|
0b6c37dd858d
commit https://github.com/vim/vim/commit/baaa7e9ec7398a813e21285c272fa99792642077
Christian Brabandt <cb@256bit.org>
parents:
7009
diff
changeset
|
7217 static fptr_T do_Lower(int *, int); |
|
0b6c37dd858d
commit https://github.com/vim/vim/commit/baaa7e9ec7398a813e21285c272fa99792642077
Christian Brabandt <cb@256bit.org>
parents:
7009
diff
changeset
|
7218 |
|
9589
bf204ab1ce7d
commit https://github.com/vim/vim/commit/72ab729c3dcdea0fba44d8e676602c847e841bcd
Christian Brabandt <cb@256bit.org>
parents:
9015
diff
changeset
|
7219 static int vim_regsub_both(char_u *source, typval_T *expr, char_u *dest, int copy, int magic, int backslash); |
| 7 | 7220 |
| 772 | 7221 static fptr_T |
|
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Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
7222 do_upper(int *d, int c) |
| 7 | 7223 { |
| 772 | 7224 *d = MB_TOUPPER(c); |
| 7225 | |
| 7226 return (fptr_T)NULL; | |
| 7 | 7227 } |
| 7228 | |
| 772 | 7229 static fptr_T |
|
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Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
7230 do_Upper(int *d, int c) |
| 7 | 7231 { |
| 772 | 7232 *d = MB_TOUPPER(c); |
| 7233 | |
| 7234 return (fptr_T)do_Upper; | |
| 7235 } | |
| 7236 | |
| 7237 static fptr_T | |
|
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Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
7238 do_lower(int *d, int c) |
| 772 | 7239 { |
| 7240 *d = MB_TOLOWER(c); | |
| 7241 | |
| 7242 return (fptr_T)NULL; | |
| 7243 } | |
| 7244 | |
| 7245 static fptr_T | |
|
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Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
7246 do_Lower(int *d, int c) |
| 772 | 7247 { |
| 7248 *d = MB_TOLOWER(c); | |
| 7249 | |
| 7250 return (fptr_T)do_Lower; | |
| 7 | 7251 } |
| 7252 | |
| 7253 /* | |
| 7254 * regtilde(): Replace tildes in the pattern by the old pattern. | |
| 7255 * | |
| 7256 * Short explanation of the tilde: It stands for the previous replacement | |
| 7257 * pattern. If that previous pattern also contains a ~ we should go back a | |
| 7258 * step further... But we insert the previous pattern into the current one | |
| 7259 * and remember that. | |
| 772 | 7260 * This still does not handle the case where "magic" changes. So require the |
| 7261 * user to keep his hands off of "magic". | |
| 7 | 7262 * |
| 7263 * The tildes are parsed once before the first call to vim_regsub(). | |
| 7264 */ | |
| 7265 char_u * | |
|
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Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
7266 regtilde(char_u *source, int magic) |
| 7 | 7267 { |
| 7268 char_u *newsub = source; | |
| 7269 char_u *tmpsub; | |
| 7270 char_u *p; | |
| 7271 int len; | |
| 7272 int prevlen; | |
| 7273 | |
| 7274 for (p = newsub; *p; ++p) | |
| 7275 { | |
| 7276 if ((*p == '~' && magic) || (*p == '\\' && *(p + 1) == '~' && !magic)) | |
| 7277 { | |
| 7278 if (reg_prev_sub != NULL) | |
| 7279 { | |
| 7280 /* length = len(newsub) - 1 + len(prev_sub) + 1 */ | |
| 7281 prevlen = (int)STRLEN(reg_prev_sub); | |
| 7282 tmpsub = alloc((unsigned)(STRLEN(newsub) + prevlen)); | |
| 7283 if (tmpsub != NULL) | |
| 7284 { | |
| 7285 /* copy prefix */ | |
| 7286 len = (int)(p - newsub); /* not including ~ */ | |
| 7287 mch_memmove(tmpsub, newsub, (size_t)len); | |
| 1209 | 7288 /* interpret tilde */ |
| 7 | 7289 mch_memmove(tmpsub + len, reg_prev_sub, (size_t)prevlen); |
| 7290 /* copy postfix */ | |
| 7291 if (!magic) | |
| 7292 ++p; /* back off \ */ | |
| 7293 STRCPY(tmpsub + len + prevlen, p + 1); | |
| 7294 | |
| 7295 if (newsub != source) /* already allocated newsub */ | |
| 7296 vim_free(newsub); | |
| 7297 newsub = tmpsub; | |
| 7298 p = newsub + len + prevlen; | |
| 7299 } | |
| 7300 } | |
| 7301 else if (magic) | |
| 1621 | 7302 STRMOVE(p, p + 1); /* remove '~' */ |
| 7 | 7303 else |
| 1621 | 7304 STRMOVE(p, p + 2); /* remove '\~' */ |
| 7 | 7305 --p; |
| 7306 } | |
| 7307 else | |
| 7308 { | |
| 7309 if (*p == '\\' && p[1]) /* skip escaped characters */ | |
| 7310 ++p; | |
| 7311 #ifdef FEAT_MBYTE | |
| 7312 if (has_mbyte) | |
| 474 | 7313 p += (*mb_ptr2len)(p) - 1; |
| 7 | 7314 #endif |
| 7315 } | |
| 7316 } | |
| 7317 | |
| 7318 vim_free(reg_prev_sub); | |
| 7319 if (newsub != source) /* newsub was allocated, just keep it */ | |
| 7320 reg_prev_sub = newsub; | |
| 7321 else /* no ~ found, need to save newsub */ | |
| 7322 reg_prev_sub = vim_strsave(newsub); | |
| 7323 return newsub; | |
| 7324 } | |
| 7325 | |
| 7326 #ifdef FEAT_EVAL | |
| 7327 static int can_f_submatch = FALSE; /* TRUE when submatch() can be used */ | |
| 7328 | |
|
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parents:
10187
diff
changeset
|
7329 /* These pointers are used for reg_submatch(). Needed for when the |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7330 * substitution string is an expression that contains a call to substitute() |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
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parents:
10187
diff
changeset
|
7331 * and submatch(). */ |
|
d76ccdacb41e
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Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7332 typedef struct { |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
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parents:
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diff
changeset
|
7333 regmatch_T *sm_match; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
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parents:
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diff
changeset
|
7334 regmmatch_T *sm_mmatch; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
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parents:
10187
diff
changeset
|
7335 linenr_T sm_firstlnum; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
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parents:
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diff
changeset
|
7336 linenr_T sm_maxline; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
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diff
changeset
|
7337 int sm_line_lbr; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
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diff
changeset
|
7338 } regsubmatch_T; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
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diff
changeset
|
7339 |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
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diff
changeset
|
7340 static regsubmatch_T rsm; /* can only be used when can_f_submatch is TRUE */ |
| 7 | 7341 #endif |
| 7342 | |
| 7343 #if defined(FEAT_MODIFY_FNAME) || defined(FEAT_EVAL) || defined(PROTO) | |
|
9626
172131507c85
commit https://github.com/vim/vim/commit/df48fb456fb6bf63d94cad9b302ff01d8ee8d311
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parents:
9589
diff
changeset
|
7344 |
|
172131507c85
commit https://github.com/vim/vim/commit/df48fb456fb6bf63d94cad9b302ff01d8ee8d311
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diff
changeset
|
7345 /* |
|
172131507c85
commit https://github.com/vim/vim/commit/df48fb456fb6bf63d94cad9b302ff01d8ee8d311
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diff
changeset
|
7346 * Put the submatches in "argv[0]" which is a list passed into call_func() by |
|
172131507c85
commit https://github.com/vim/vim/commit/df48fb456fb6bf63d94cad9b302ff01d8ee8d311
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parents:
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diff
changeset
|
7347 * vim_regsub_both(). |
|
172131507c85
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diff
changeset
|
7348 */ |
|
172131507c85
commit https://github.com/vim/vim/commit/df48fb456fb6bf63d94cad9b302ff01d8ee8d311
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parents:
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diff
changeset
|
7349 static int |
|
172131507c85
commit https://github.com/vim/vim/commit/df48fb456fb6bf63d94cad9b302ff01d8ee8d311
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diff
changeset
|
7350 fill_submatch_list(int argc UNUSED, typval_T *argv, int argcount) |
|
172131507c85
commit https://github.com/vim/vim/commit/df48fb456fb6bf63d94cad9b302ff01d8ee8d311
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diff
changeset
|
7351 { |
|
172131507c85
commit https://github.com/vim/vim/commit/df48fb456fb6bf63d94cad9b302ff01d8ee8d311
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diff
changeset
|
7352 listitem_T *li; |
|
172131507c85
commit https://github.com/vim/vim/commit/df48fb456fb6bf63d94cad9b302ff01d8ee8d311
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diff
changeset
|
7353 int i; |
|
172131507c85
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diff
changeset
|
7354 char_u *s; |
|
172131507c85
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diff
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|
7355 |
|
172131507c85
commit https://github.com/vim/vim/commit/df48fb456fb6bf63d94cad9b302ff01d8ee8d311
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diff
changeset
|
7356 if (argcount == 0) |
|
172131507c85
commit https://github.com/vim/vim/commit/df48fb456fb6bf63d94cad9b302ff01d8ee8d311
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diff
changeset
|
7357 /* called function doesn't take an argument */ |
|
172131507c85
commit https://github.com/vim/vim/commit/df48fb456fb6bf63d94cad9b302ff01d8ee8d311
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diff
changeset
|
7358 return 0; |
|
172131507c85
commit https://github.com/vim/vim/commit/df48fb456fb6bf63d94cad9b302ff01d8ee8d311
Christian Brabandt <cb@256bit.org>
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diff
changeset
|
7359 |
|
172131507c85
commit https://github.com/vim/vim/commit/df48fb456fb6bf63d94cad9b302ff01d8ee8d311
Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
7360 /* Relies on sl_list to be the first item in staticList10_T. */ |
|
172131507c85
commit https://github.com/vim/vim/commit/df48fb456fb6bf63d94cad9b302ff01d8ee8d311
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parents:
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diff
changeset
|
7361 init_static_list((staticList10_T *)(argv->vval.v_list)); |
|
172131507c85
commit https://github.com/vim/vim/commit/df48fb456fb6bf63d94cad9b302ff01d8ee8d311
Christian Brabandt <cb@256bit.org>
parents:
9589
diff
changeset
|
7362 |
|
172131507c85
commit https://github.com/vim/vim/commit/df48fb456fb6bf63d94cad9b302ff01d8ee8d311
Christian Brabandt <cb@256bit.org>
parents:
9589
diff
changeset
|
7363 /* There are always 10 list items in staticList10_T. */ |
|
172131507c85
commit https://github.com/vim/vim/commit/df48fb456fb6bf63d94cad9b302ff01d8ee8d311
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parents:
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diff
changeset
|
7364 li = argv->vval.v_list->lv_first; |
|
172131507c85
commit https://github.com/vim/vim/commit/df48fb456fb6bf63d94cad9b302ff01d8ee8d311
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parents:
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diff
changeset
|
7365 for (i = 0; i < 10; ++i) |
|
172131507c85
commit https://github.com/vim/vim/commit/df48fb456fb6bf63d94cad9b302ff01d8ee8d311
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diff
changeset
|
7366 { |
|
10245
d76ccdacb41e
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diff
changeset
|
7367 s = rsm.sm_match->startp[i]; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
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10187
diff
changeset
|
7368 if (s == NULL || rsm.sm_match->endp[i] == NULL) |
|
9626
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diff
changeset
|
7369 s = NULL; |
|
172131507c85
commit https://github.com/vim/vim/commit/df48fb456fb6bf63d94cad9b302ff01d8ee8d311
Christian Brabandt <cb@256bit.org>
parents:
9589
diff
changeset
|
7370 else |
|
10245
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commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
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10187
diff
changeset
|
7371 s = vim_strnsave(s, (int)(rsm.sm_match->endp[i] - s)); |
|
9626
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commit https://github.com/vim/vim/commit/df48fb456fb6bf63d94cad9b302ff01d8ee8d311
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diff
changeset
|
7372 li->li_tv.v_type = VAR_STRING; |
|
172131507c85
commit https://github.com/vim/vim/commit/df48fb456fb6bf63d94cad9b302ff01d8ee8d311
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diff
changeset
|
7373 li->li_tv.vval.v_string = s; |
|
172131507c85
commit https://github.com/vim/vim/commit/df48fb456fb6bf63d94cad9b302ff01d8ee8d311
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diff
changeset
|
7374 li = li->li_next; |
|
172131507c85
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diff
changeset
|
7375 } |
|
172131507c85
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diff
changeset
|
7376 return 1; |
|
172131507c85
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diff
changeset
|
7377 } |
|
172131507c85
commit https://github.com/vim/vim/commit/df48fb456fb6bf63d94cad9b302ff01d8ee8d311
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diff
changeset
|
7378 |
|
172131507c85
commit https://github.com/vim/vim/commit/df48fb456fb6bf63d94cad9b302ff01d8ee8d311
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parents:
9589
diff
changeset
|
7379 static void |
|
172131507c85
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parents:
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diff
changeset
|
7380 clear_submatch_list(staticList10_T *sl) |
|
172131507c85
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diff
changeset
|
7381 { |
|
172131507c85
commit https://github.com/vim/vim/commit/df48fb456fb6bf63d94cad9b302ff01d8ee8d311
Christian Brabandt <cb@256bit.org>
parents:
9589
diff
changeset
|
7382 int i; |
|
172131507c85
commit https://github.com/vim/vim/commit/df48fb456fb6bf63d94cad9b302ff01d8ee8d311
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parents:
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diff
changeset
|
7383 |
|
172131507c85
commit https://github.com/vim/vim/commit/df48fb456fb6bf63d94cad9b302ff01d8ee8d311
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parents:
9589
diff
changeset
|
7384 for (i = 0; i < 10; ++i) |
|
172131507c85
commit https://github.com/vim/vim/commit/df48fb456fb6bf63d94cad9b302ff01d8ee8d311
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parents:
9589
diff
changeset
|
7385 vim_free(sl->sl_items[i].li_tv.vval.v_string); |
|
172131507c85
commit https://github.com/vim/vim/commit/df48fb456fb6bf63d94cad9b302ff01d8ee8d311
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parents:
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diff
changeset
|
7386 } |
|
172131507c85
commit https://github.com/vim/vim/commit/df48fb456fb6bf63d94cad9b302ff01d8ee8d311
Christian Brabandt <cb@256bit.org>
parents:
9589
diff
changeset
|
7387 |
| 7 | 7388 /* |
| 7389 * vim_regsub() - perform substitutions after a vim_regexec() or | |
| 7390 * vim_regexec_multi() match. | |
| 7391 * | |
| 7392 * If "copy" is TRUE really copy into "dest". | |
| 7393 * If "copy" is FALSE nothing is copied, this is just to find out the length | |
| 7394 * of the result. | |
| 7395 * | |
| 7396 * If "backslash" is TRUE, a backslash will be removed later, need to double | |
| 7397 * them to keep them, and insert a backslash before a CR to avoid it being | |
| 7398 * replaced with a line break later. | |
| 7399 * | |
| 7400 * Note: The matched text must not change between the call of | |
| 7401 * vim_regexec()/vim_regexec_multi() and vim_regsub()! It would make the back | |
| 7402 * references invalid! | |
| 7403 * | |
| 7404 * Returns the size of the replacement, including terminating NUL. | |
| 7405 */ | |
| 7406 int | |
|
7833
c079097365f3
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parents:
7807
diff
changeset
|
7407 vim_regsub( |
|
c079097365f3
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diff
changeset
|
7408 regmatch_T *rmp, |
|
c079097365f3
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7807
diff
changeset
|
7409 char_u *source, |
|
9589
bf204ab1ce7d
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9015
diff
changeset
|
7410 typval_T *expr, |
|
7833
c079097365f3
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diff
changeset
|
7411 char_u *dest, |
|
c079097365f3
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diff
changeset
|
7412 int copy, |
|
c079097365f3
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diff
changeset
|
7413 int magic, |
|
c079097365f3
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diff
changeset
|
7414 int backslash) |
| 7 | 7415 { |
|
10245
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diff
changeset
|
7416 int result; |
|
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diff
changeset
|
7417 regexec_T rex_save; |
|
d76ccdacb41e
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diff
changeset
|
7418 int rex_in_use_save = rex_in_use; |
|
d76ccdacb41e
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changeset
|
7419 |
|
d76ccdacb41e
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diff
changeset
|
7420 if (rex_in_use) |
|
d76ccdacb41e
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diff
changeset
|
7421 /* Being called recursively, save the state. */ |
|
d76ccdacb41e
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diff
changeset
|
7422 rex_save = rex; |
|
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diff
changeset
|
7423 rex_in_use = TRUE; |
|
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diff
changeset
|
7424 |
|
d76ccdacb41e
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diff
changeset
|
7425 rex.reg_match = rmp; |
|
d76ccdacb41e
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changeset
|
7426 rex.reg_mmatch = NULL; |
|
d76ccdacb41e
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diff
changeset
|
7427 rex.reg_maxline = 0; |
|
d76ccdacb41e
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diff
changeset
|
7428 rex.reg_buf = curbuf; |
|
d76ccdacb41e
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diff
changeset
|
7429 rex.reg_line_lbr = TRUE; |
|
d76ccdacb41e
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changeset
|
7430 result = vim_regsub_both(source, expr, dest, copy, magic, backslash); |
|
d76ccdacb41e
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diff
changeset
|
7431 |
|
d76ccdacb41e
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diff
changeset
|
7432 rex_in_use = rex_in_use_save; |
|
d76ccdacb41e
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diff
changeset
|
7433 if (rex_in_use) |
|
d76ccdacb41e
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diff
changeset
|
7434 rex = rex_save; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
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parents:
10187
diff
changeset
|
7435 |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7436 return result; |
| 7 | 7437 } |
| 7438 #endif | |
| 7439 | |
| 7440 int | |
|
7833
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
7441 vim_regsub_multi( |
|
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
7442 regmmatch_T *rmp, |
|
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
7443 linenr_T lnum, |
|
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
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diff
changeset
|
7444 char_u *source, |
|
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
7445 char_u *dest, |
|
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
7446 int copy, |
|
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
7447 int magic, |
|
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
7448 int backslash) |
| 7 | 7449 { |
|
10245
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Christian Brabandt <cb@256bit.org>
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diff
changeset
|
7450 int result; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7451 regexec_T rex_save; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7452 int rex_in_use_save = rex_in_use; |
|
d76ccdacb41e
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parents:
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diff
changeset
|
7453 |
|
d76ccdacb41e
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parents:
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diff
changeset
|
7454 if (rex_in_use) |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
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diff
changeset
|
7455 /* Being called recursively, save the state. */ |
|
d76ccdacb41e
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diff
changeset
|
7456 rex_save = rex; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
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10187
diff
changeset
|
7457 rex_in_use = TRUE; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
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diff
changeset
|
7458 |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
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diff
changeset
|
7459 rex.reg_match = NULL; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
7460 rex.reg_mmatch = rmp; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
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diff
changeset
|
7461 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
|
7462 rex.reg_firstlnum = lnum; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
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diff
changeset
|
7463 rex.reg_maxline = curbuf->b_ml.ml_line_count - lnum; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
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diff
changeset
|
7464 rex.reg_line_lbr = FALSE; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
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10187
diff
changeset
|
7465 result = vim_regsub_both(source, NULL, dest, copy, magic, backslash); |
|
d76ccdacb41e
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diff
changeset
|
7466 |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
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diff
changeset
|
7467 rex_in_use = rex_in_use_save; |
|
d76ccdacb41e
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10187
diff
changeset
|
7468 if (rex_in_use) |
|
d76ccdacb41e
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10187
diff
changeset
|
7469 rex = rex_save; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
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parents:
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diff
changeset
|
7470 |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
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diff
changeset
|
7471 return result; |
| 7 | 7472 } |
| 7473 | |
| 7474 static int | |
|
7833
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diff
changeset
|
7475 vim_regsub_both( |
|
c079097365f3
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diff
changeset
|
7476 char_u *source, |
|
9589
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diff
changeset
|
7477 typval_T *expr, |
|
7833
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7807
diff
changeset
|
7478 char_u *dest, |
|
c079097365f3
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diff
changeset
|
7479 int copy, |
|
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
7480 int magic, |
|
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
7481 int backslash) |
| 7 | 7482 { |
| 7483 char_u *src; | |
| 7484 char_u *dst; | |
| 7485 char_u *s; | |
| 7486 int c; | |
| 772 | 7487 int cc; |
| 7 | 7488 int no = -1; |
| 4244 | 7489 fptr_T func_all = (fptr_T)NULL; |
| 7490 fptr_T func_one = (fptr_T)NULL; | |
| 7 | 7491 linenr_T clnum = 0; /* init for GCC */ |
| 7492 int len = 0; /* init for GCC */ | |
| 7493 #ifdef FEAT_EVAL | |
|
9589
bf204ab1ce7d
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parents:
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diff
changeset
|
7494 static char_u *eval_result = NULL; |
| 7 | 7495 #endif |
| 7496 | |
| 7497 /* Be paranoid... */ | |
|
9589
bf204ab1ce7d
commit https://github.com/vim/vim/commit/72ab729c3dcdea0fba44d8e676602c847e841bcd
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parents:
9015
diff
changeset
|
7498 if ((source == NULL && expr == NULL) || dest == NULL) |
| 7 | 7499 { |
| 7500 EMSG(_(e_null)); | |
| 7501 return 0; | |
| 7502 } | |
| 7503 if (prog_magic_wrong()) | |
| 7504 return 0; | |
| 7505 src = source; | |
| 7506 dst = dest; | |
| 7507 | |
| 7508 /* | |
| 7509 * When the substitute part starts with "\=" evaluate it as an expression. | |
| 7510 */ | |
|
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diff
changeset
|
7511 if (expr != NULL || (source[0] == '\\' && source[1] == '=')) |
| 7 | 7512 { |
| 7513 #ifdef FEAT_EVAL | |
| 7514 /* To make sure that the length doesn't change between checking the | |
| 7515 * length and copying the string, and to speed up things, the | |
| 7516 * resulting string is saved from the call with "copy" == FALSE to the | |
| 7517 * call with "copy" == TRUE. */ | |
| 7518 if (copy) | |
| 7519 { | |
| 7520 if (eval_result != NULL) | |
| 7521 { | |
| 7522 STRCPY(dest, eval_result); | |
| 7523 dst += STRLEN(eval_result); | |
| 7524 vim_free(eval_result); | |
| 7525 eval_result = NULL; | |
| 7526 } | |
| 7527 } | |
| 7528 else | |
| 7529 { | |
|
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parents:
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diff
changeset
|
7530 int prev_can_f_submatch = can_f_submatch; |
|
d76ccdacb41e
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parents:
10187
diff
changeset
|
7531 regsubmatch_T rsm_save; |
| 7 | 7532 |
| 7533 vim_free(eval_result); | |
| 7534 | |
| 7535 /* The expression may contain substitute(), which calls us | |
| 7536 * recursively. Make sure submatch() gets the text from the first | |
|
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diff
changeset
|
7537 * level. */ |
|
d76ccdacb41e
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parents:
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diff
changeset
|
7538 if (can_f_submatch) |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
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diff
changeset
|
7539 rsm_save = rsm; |
| 7 | 7540 can_f_submatch = TRUE; |
|
10245
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diff
changeset
|
7541 rsm.sm_match = rex.reg_match; |
|
d76ccdacb41e
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diff
changeset
|
7542 rsm.sm_mmatch = rex.reg_mmatch; |
|
d76ccdacb41e
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diff
changeset
|
7543 rsm.sm_firstlnum = rex.reg_firstlnum; |
|
d76ccdacb41e
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diff
changeset
|
7544 rsm.sm_maxline = rex.reg_maxline; |
|
d76ccdacb41e
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diff
changeset
|
7545 rsm.sm_line_lbr = rex.reg_line_lbr; |
| 7 | 7546 |
|
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changeset
|
7547 if (expr != NULL) |
|
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diff
changeset
|
7548 { |
|
9626
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diff
changeset
|
7549 typval_T argv[2]; |
|
9589
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diff
changeset
|
7550 int dummy; |
|
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diff
changeset
|
7551 char_u buf[NUMBUFLEN]; |
|
bf204ab1ce7d
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diff
changeset
|
7552 typval_T rettv; |
|
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diff
changeset
|
7553 staticList10_T matchList; |
|
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diff
changeset
|
7554 |
|
bf204ab1ce7d
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diff
changeset
|
7555 rettv.v_type = VAR_STRING; |
|
bf204ab1ce7d
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diff
changeset
|
7556 rettv.vval.v_string = NULL; |
|
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|
7557 argv[0].v_type = VAR_LIST; |
|
d76ccdacb41e
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diff
changeset
|
7558 argv[0].vval.v_list = &matchList.sl_list; |
|
d76ccdacb41e
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changeset
|
7559 matchList.sl_list.lv_len = 0; |
|
d76ccdacb41e
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diff
changeset
|
7560 if (expr->v_type == VAR_FUNC) |
|
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|
7561 { |
|
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changeset
|
7562 s = expr->vval.v_string; |
|
d76ccdacb41e
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changeset
|
7563 call_func(s, (int)STRLEN(s), &rettv, |
|
d76ccdacb41e
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changeset
|
7564 1, argv, fill_submatch_list, |
|
d76ccdacb41e
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changeset
|
7565 0L, 0L, &dummy, TRUE, NULL, NULL); |
|
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|
7566 } |
|
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changeset
|
7567 else if (expr->v_type == VAR_PARTIAL) |
|
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|
7568 { |
|
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changeset
|
7569 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
|
7570 |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7571 s = partial_name(partial); |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7572 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
|
7573 1, argv, fill_submatch_list, |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7574 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
|
7575 } |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7576 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
|
7577 /* fill_submatch_list() was called */ |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7578 clear_submatch_list(&matchList); |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7579 |
|
9589
bf204ab1ce7d
commit https://github.com/vim/vim/commit/72ab729c3dcdea0fba44d8e676602c847e841bcd
Christian Brabandt <cb@256bit.org>
parents:
9015
diff
changeset
|
7580 eval_result = get_tv_string_buf_chk(&rettv, buf); |
|
bf204ab1ce7d
commit https://github.com/vim/vim/commit/72ab729c3dcdea0fba44d8e676602c847e841bcd
Christian Brabandt <cb@256bit.org>
parents:
9015
diff
changeset
|
7581 if (eval_result != NULL) |
|
bf204ab1ce7d
commit https://github.com/vim/vim/commit/72ab729c3dcdea0fba44d8e676602c847e841bcd
Christian Brabandt <cb@256bit.org>
parents:
9015
diff
changeset
|
7582 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
|
7583 clear_tv(&rettv); |
|
9589
bf204ab1ce7d
commit https://github.com/vim/vim/commit/72ab729c3dcdea0fba44d8e676602c847e841bcd
Christian Brabandt <cb@256bit.org>
parents:
9015
diff
changeset
|
7584 } |
|
bf204ab1ce7d
commit https://github.com/vim/vim/commit/72ab729c3dcdea0fba44d8e676602c847e841bcd
Christian Brabandt <cb@256bit.org>
parents:
9015
diff
changeset
|
7585 else |
|
bf204ab1ce7d
commit https://github.com/vim/vim/commit/72ab729c3dcdea0fba44d8e676602c847e841bcd
Christian Brabandt <cb@256bit.org>
parents:
9015
diff
changeset
|
7586 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
|
7587 |
| 7 | 7588 if (eval_result != NULL) |
| 7589 { | |
|
2125
b8744d1982d1
updated for version 7.2.407
Bram Moolenaar <bram@zimbu.org>
parents:
2012
diff
changeset
|
7590 int had_backslash = FALSE; |
|
b8744d1982d1
updated for version 7.2.407
Bram Moolenaar <bram@zimbu.org>
parents:
2012
diff
changeset
|
7591 |
|
11127
506f5d8b7d8b
patch 8.0.0451: some macros are in lower case
Christian Brabandt <cb@256bit.org>
parents:
11121
diff
changeset
|
7592 for (s = eval_result; *s != NUL; MB_PTR_ADV(s)) |
| 7 | 7593 { |
| 2904 | 7594 /* Change NL to CR, so that it becomes a line break, |
| 7595 * unless called from vim_regexec_nl(). | |
| 7 | 7596 * Skip over a backslashed character. */ |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7597 if (*s == NL && !rsm.sm_line_lbr) |
| 7 | 7598 *s = CAR; |
| 7599 else if (*s == '\\' && s[1] != NUL) | |
|
2125
b8744d1982d1
updated for version 7.2.407
Bram Moolenaar <bram@zimbu.org>
parents:
2012
diff
changeset
|
7600 { |
| 7 | 7601 ++s; |
| 2173 | 7602 /* Change NL to CR here too, so that this works: |
| 7603 * :s/abc\\\ndef/\="aaa\\\nbbb"/ on text: | |
| 7604 * abc\ | |
| 7605 * def | |
| 2904 | 7606 * Not when called from vim_regexec_nl(). |
| 2173 | 7607 */ |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7608 if (*s == NL && !rsm.sm_line_lbr) |
| 2173 | 7609 *s = CAR; |
|
2125
b8744d1982d1
updated for version 7.2.407
Bram Moolenaar <bram@zimbu.org>
parents:
2012
diff
changeset
|
7610 had_backslash = TRUE; |
|
b8744d1982d1
updated for version 7.2.407
Bram Moolenaar <bram@zimbu.org>
parents:
2012
diff
changeset
|
7611 } |
|
b8744d1982d1
updated for version 7.2.407
Bram Moolenaar <bram@zimbu.org>
parents:
2012
diff
changeset
|
7612 } |
|
b8744d1982d1
updated for version 7.2.407
Bram Moolenaar <bram@zimbu.org>
parents:
2012
diff
changeset
|
7613 if (had_backslash && backslash) |
|
b8744d1982d1
updated for version 7.2.407
Bram Moolenaar <bram@zimbu.org>
parents:
2012
diff
changeset
|
7614 { |
|
b8744d1982d1
updated for version 7.2.407
Bram Moolenaar <bram@zimbu.org>
parents:
2012
diff
changeset
|
7615 /* Backslashes will be consumed, need to double them. */ |
|
b8744d1982d1
updated for version 7.2.407
Bram Moolenaar <bram@zimbu.org>
parents:
2012
diff
changeset
|
7616 s = vim_strsave_escaped(eval_result, (char_u *)"\\"); |
|
b8744d1982d1
updated for version 7.2.407
Bram Moolenaar <bram@zimbu.org>
parents:
2012
diff
changeset
|
7617 if (s != NULL) |
|
b8744d1982d1
updated for version 7.2.407
Bram Moolenaar <bram@zimbu.org>
parents:
2012
diff
changeset
|
7618 { |
|
b8744d1982d1
updated for version 7.2.407
Bram Moolenaar <bram@zimbu.org>
parents:
2012
diff
changeset
|
7619 vim_free(eval_result); |
|
b8744d1982d1
updated for version 7.2.407
Bram Moolenaar <bram@zimbu.org>
parents:
2012
diff
changeset
|
7620 eval_result = s; |
|
b8744d1982d1
updated for version 7.2.407
Bram Moolenaar <bram@zimbu.org>
parents:
2012
diff
changeset
|
7621 } |
| 7 | 7622 } |
| 7623 | |
| 7624 dst += STRLEN(eval_result); | |
| 7625 } | |
| 7626 | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7627 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
|
7628 if (can_f_submatch) |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7629 rsm = rsm_save; |
| 7 | 7630 } |
| 7631 #endif | |
| 7632 } | |
| 7633 else | |
| 7634 while ((c = *src++) != NUL) | |
| 7635 { | |
| 7636 if (c == '&' && magic) | |
| 7637 no = 0; | |
| 7638 else if (c == '\\' && *src != NUL) | |
| 7639 { | |
| 7640 if (*src == '&' && !magic) | |
| 7641 { | |
| 7642 ++src; | |
| 7643 no = 0; | |
| 7644 } | |
| 7645 else if ('0' <= *src && *src <= '9') | |
| 7646 { | |
| 7647 no = *src++ - '0'; | |
| 7648 } | |
| 7649 else if (vim_strchr((char_u *)"uUlLeE", *src)) | |
| 7650 { | |
| 7651 switch (*src++) | |
| 7652 { | |
| 4244 | 7653 case 'u': func_one = (fptr_T)do_upper; |
| 7 | 7654 continue; |
| 4244 | 7655 case 'U': func_all = (fptr_T)do_Upper; |
| 7 | 7656 continue; |
| 4244 | 7657 case 'l': func_one = (fptr_T)do_lower; |
| 7 | 7658 continue; |
| 4244 | 7659 case 'L': func_all = (fptr_T)do_Lower; |
| 7 | 7660 continue; |
| 7661 case 'e': | |
| 4244 | 7662 case 'E': func_one = func_all = (fptr_T)NULL; |
| 7 | 7663 continue; |
| 7664 } | |
| 7665 } | |
| 7666 } | |
| 7667 if (no < 0) /* Ordinary character. */ | |
| 7668 { | |
| 798 | 7669 if (c == K_SPECIAL && src[0] != NUL && src[1] != NUL) |
| 7670 { | |
| 1209 | 7671 /* Copy a special key as-is. */ |
| 798 | 7672 if (copy) |
| 7673 { | |
| 7674 *dst++ = c; | |
| 7675 *dst++ = *src++; | |
| 7676 *dst++ = *src++; | |
| 7677 } | |
| 7678 else | |
| 7679 { | |
| 7680 dst += 3; | |
| 7681 src += 2; | |
| 7682 } | |
| 7683 continue; | |
| 7684 } | |
| 7685 | |
| 7 | 7686 if (c == '\\' && *src != NUL) |
| 7687 { | |
| 7688 /* Check for abbreviations -- webb */ | |
| 7689 switch (*src) | |
| 7690 { | |
| 7691 case 'r': c = CAR; ++src; break; | |
| 7692 case 'n': c = NL; ++src; break; | |
| 7693 case 't': c = TAB; ++src; break; | |
| 7694 /* Oh no! \e already has meaning in subst pat :-( */ | |
| 7695 /* case 'e': c = ESC; ++src; break; */ | |
| 7696 case 'b': c = Ctrl_H; ++src; break; | |
| 7697 | |
| 7698 /* If "backslash" is TRUE the backslash will be removed | |
| 7699 * later. Used to insert a literal CR. */ | |
| 7700 default: if (backslash) | |
| 7701 { | |
| 7702 if (copy) | |
| 7703 *dst = '\\'; | |
| 7704 ++dst; | |
| 7705 } | |
| 7706 c = *src++; | |
| 7707 } | |
| 7708 } | |
| 798 | 7709 #ifdef FEAT_MBYTE |
| 7710 else if (has_mbyte) | |
| 7711 c = mb_ptr2char(src - 1); | |
| 7712 #endif | |
| 7 | 7713 |
| 7714 /* Write to buffer, if copy is set. */ | |
| 4244 | 7715 if (func_one != (fptr_T)NULL) |
| 7716 /* Turbo C complains without the typecast */ | |
| 7717 func_one = (fptr_T)(func_one(&cc, c)); | |
| 7718 else if (func_all != (fptr_T)NULL) | |
| 7719 /* Turbo C complains without the typecast */ | |
| 7720 func_all = (fptr_T)(func_all(&cc, c)); | |
| 7721 else /* just copy */ | |
| 772 | 7722 cc = c; |
| 7723 | |
| 7724 #ifdef FEAT_MBYTE | |
| 7725 if (has_mbyte) | |
| 7 | 7726 { |
|
2307
81527f127fb1
Fix: Composing characters in :s substitute text were dropped.
Bram Moolenaar <bram@vim.org>
parents:
2247
diff
changeset
|
7727 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
|
7728 |
| 7 | 7729 if (copy) |
| 772 | 7730 mb_char2bytes(cc, dst); |
| 7731 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
|
7732 if (enc_utf8) |
|
81527f127fb1
Fix: Composing characters in :s substitute text were dropped.
Bram Moolenaar <bram@vim.org>
parents:
2247
diff
changeset
|
7733 { |
|
81527f127fb1
Fix: Composing characters in :s substitute text were dropped.
Bram Moolenaar <bram@vim.org>
parents:
2247
diff
changeset
|
7734 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
|
7735 |
|
81527f127fb1
Fix: Composing characters in :s substitute text were dropped.
Bram Moolenaar <bram@vim.org>
parents:
2247
diff
changeset
|
7736 /* 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
|
7737 * 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
|
7738 if (clen < totlen) |
|
81527f127fb1
Fix: Composing characters in :s substitute text were dropped.
Bram Moolenaar <bram@vim.org>
parents:
2247
diff
changeset
|
7739 { |
|
81527f127fb1
Fix: Composing characters in :s substitute text were dropped.
Bram Moolenaar <bram@vim.org>
parents:
2247
diff
changeset
|
7740 if (copy) |
|
81527f127fb1
Fix: Composing characters in :s substitute text were dropped.
Bram Moolenaar <bram@vim.org>
parents:
2247
diff
changeset
|
7741 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
|
7742 (size_t)(totlen - clen)); |
|
81527f127fb1
Fix: Composing characters in :s substitute text were dropped.
Bram Moolenaar <bram@vim.org>
parents:
2247
diff
changeset
|
7743 dst += totlen - clen; |
|
81527f127fb1
Fix: Composing characters in :s substitute text were dropped.
Bram Moolenaar <bram@vim.org>
parents:
2247
diff
changeset
|
7744 } |
|
81527f127fb1
Fix: Composing characters in :s substitute text were dropped.
Bram Moolenaar <bram@vim.org>
parents:
2247
diff
changeset
|
7745 } |
|
81527f127fb1
Fix: Composing characters in :s substitute text were dropped.
Bram Moolenaar <bram@vim.org>
parents:
2247
diff
changeset
|
7746 src += totlen - 1; |
| 7 | 7747 } |
| 7748 else | |
| 7749 #endif | |
| 7750 if (copy) | |
| 772 | 7751 *dst = cc; |
| 7 | 7752 dst++; |
| 7753 } | |
| 7754 else | |
| 7755 { | |
| 7756 if (REG_MULTI) | |
| 7757 { | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7758 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
|
7759 if (clnum < 0 || rex.reg_mmatch->endpos[no].lnum < 0) |
| 7 | 7760 s = NULL; |
| 7761 else | |
| 7762 { | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7763 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
|
7764 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
|
7765 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
|
7766 - rex.reg_mmatch->startpos[no].col; |
| 7 | 7767 else |
| 7768 len = (int)STRLEN(s); | |
| 7769 } | |
| 7770 } | |
| 7771 else | |
| 7772 { | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7773 s = rex.reg_match->startp[no]; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7774 if (rex.reg_match->endp[no] == NULL) |
| 7 | 7775 s = NULL; |
| 7776 else | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7777 len = (int)(rex.reg_match->endp[no] - s); |
| 7 | 7778 } |
| 7779 if (s != NULL) | |
| 7780 { | |
| 7781 for (;;) | |
| 7782 { | |
| 7783 if (len == 0) | |
| 7784 { | |
| 7785 if (REG_MULTI) | |
| 7786 { | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7787 if (rex.reg_mmatch->endpos[no].lnum == clnum) |
| 7 | 7788 break; |
| 7789 if (copy) | |
| 7790 *dst = CAR; | |
| 7791 ++dst; | |
| 7792 s = reg_getline(++clnum); | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7793 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
|
7794 len = rex.reg_mmatch->endpos[no].col; |
| 7 | 7795 else |
| 7796 len = (int)STRLEN(s); | |
| 7797 } | |
| 7798 else | |
| 7799 break; | |
| 7800 } | |
| 7801 else if (*s == NUL) /* we hit NUL. */ | |
| 7802 { | |
| 7803 if (copy) | |
| 7804 EMSG(_(e_re_damg)); | |
| 7805 goto exit; | |
| 7806 } | |
| 7807 else | |
| 7808 { | |
| 7809 if (backslash && (*s == CAR || *s == '\\')) | |
| 7810 { | |
| 7811 /* | |
| 7812 * Insert a backslash in front of a CR, otherwise | |
| 7813 * it will be replaced by a line break. | |
| 7814 * Number of backslashes will be halved later, | |
| 7815 * double them here. | |
| 7816 */ | |
| 7817 if (copy) | |
| 7818 { | |
| 7819 dst[0] = '\\'; | |
| 7820 dst[1] = *s; | |
| 7821 } | |
| 7822 dst += 2; | |
| 7823 } | |
| 7824 else | |
| 7825 { | |
| 772 | 7826 #ifdef FEAT_MBYTE |
| 7827 if (has_mbyte) | |
| 7828 c = mb_ptr2char(s); | |
| 7829 else | |
| 7830 #endif | |
| 7831 c = *s; | |
| 7832 | |
| 4244 | 7833 if (func_one != (fptr_T)NULL) |
| 7834 /* Turbo C complains without the typecast */ | |
| 7835 func_one = (fptr_T)(func_one(&cc, c)); | |
| 7836 else if (func_all != (fptr_T)NULL) | |
| 7837 /* Turbo C complains without the typecast */ | |
| 7838 func_all = (fptr_T)(func_all(&cc, c)); | |
| 7839 else /* just copy */ | |
| 772 | 7840 cc = c; |
| 7841 | |
| 7842 #ifdef FEAT_MBYTE | |
| 7843 if (has_mbyte) | |
| 7 | 7844 { |
| 1332 | 7845 int l; |
| 7846 | |
| 7847 /* Copy composing characters separately, one | |
| 7848 * at a time. */ | |
| 7849 if (enc_utf8) | |
| 7850 l = utf_ptr2len(s) - 1; | |
| 7851 else | |
| 7852 l = mb_ptr2len(s) - 1; | |
| 772 | 7853 |
| 7854 s += l; | |
| 7855 len -= l; | |
| 7856 if (copy) | |
| 7857 mb_char2bytes(cc, dst); | |
| 7858 dst += mb_char2len(cc) - 1; | |
| 7 | 7859 } |
| 772 | 7860 else |
| 7861 #endif | |
| 7862 if (copy) | |
| 7863 *dst = cc; | |
| 7864 dst++; | |
| 7 | 7865 } |
| 772 | 7866 |
| 7 | 7867 ++s; |
| 7868 --len; | |
| 7869 } | |
| 7870 } | |
| 7871 } | |
| 7872 no = -1; | |
| 7873 } | |
| 7874 } | |
| 7875 if (copy) | |
| 7876 *dst = NUL; | |
| 7877 | |
| 7878 exit: | |
| 7879 return (int)((dst - dest) + 1); | |
| 7880 } | |
| 7881 | |
| 7882 #ifdef FEAT_EVAL | |
|
7805
0b6c37dd858d
commit https://github.com/vim/vim/commit/baaa7e9ec7398a813e21285c272fa99792642077
Christian Brabandt <cb@256bit.org>
parents:
7009
diff
changeset
|
7883 static char_u *reg_getline_submatch(linenr_T lnum); |
| 2012 | 7884 |
| 7 | 7885 /* |
| 2011 | 7886 * Call reg_getline() with the line numbers from the submatch. If a |
| 7887 * substitute() was used the reg_maxline and other values have been | |
| 7888 * overwritten. | |
| 7889 */ | |
| 7890 static char_u * | |
|
7833
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
7891 reg_getline_submatch(linenr_T lnum) |
| 2011 | 7892 { |
| 7893 char_u *s; | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7894 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
|
7895 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
|
7896 |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7897 rex.reg_firstlnum = rsm.sm_firstlnum; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7898 rex.reg_maxline = rsm.sm_maxline; |
| 2011 | 7899 |
| 7900 s = reg_getline(lnum); | |
| 7901 | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7902 rex.reg_firstlnum = save_first; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7903 rex.reg_maxline = save_max; |
| 2011 | 7904 return s; |
| 7905 } | |
| 7906 | |
| 7907 /* | |
| 1209 | 7908 * Used for the submatch() function: get the string from the n'th submatch in |
| 7 | 7909 * allocated memory. |
| 7910 * Returns NULL when not in a ":s" command and for a non-existing submatch. | |
| 7911 */ | |
| 7912 char_u * | |
|
7833
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
7913 reg_submatch(int no) |
| 7 | 7914 { |
| 7915 char_u *retval = NULL; | |
| 7916 char_u *s; | |
| 7917 int len; | |
| 7918 int round; | |
| 7919 linenr_T lnum; | |
| 7920 | |
| 840 | 7921 if (!can_f_submatch || no < 0) |
| 7 | 7922 return NULL; |
| 7923 | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7924 if (rsm.sm_match == NULL) |
| 7 | 7925 { |
| 7926 /* | |
| 7927 * First round: compute the length and allocate memory. | |
| 7928 * Second round: copy the text. | |
| 7929 */ | |
| 7930 for (round = 1; round <= 2; ++round) | |
| 7931 { | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7932 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
|
7933 if (lnum < 0 || rsm.sm_mmatch->endpos[no].lnum < 0) |
| 7 | 7934 return NULL; |
| 7935 | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7936 s = reg_getline_submatch(lnum) + rsm.sm_mmatch->startpos[no].col; |
| 7 | 7937 if (s == NULL) /* anti-crash check, cannot happen? */ |
| 7938 break; | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7939 if (rsm.sm_mmatch->endpos[no].lnum == lnum) |
| 7 | 7940 { |
| 7941 /* 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
|
7942 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
|
7943 - rsm.sm_mmatch->startpos[no].col; |
| 7 | 7944 if (round == 2) |
| 418 | 7945 vim_strncpy(retval, s, len); |
| 7 | 7946 ++len; |
| 7947 } | |
| 7948 else | |
| 7949 { | |
| 7950 /* Multiple lines: take start line from start col, middle | |
| 7951 * lines completely and end line up to end col. */ | |
| 7952 len = (int)STRLEN(s); | |
| 7953 if (round == 2) | |
| 7954 { | |
| 7955 STRCPY(retval, s); | |
| 7956 retval[len] = '\n'; | |
| 7957 } | |
| 7958 ++len; | |
| 7959 ++lnum; | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7960 while (lnum < rsm.sm_mmatch->endpos[no].lnum) |
| 7 | 7961 { |
| 2011 | 7962 s = reg_getline_submatch(lnum++); |
| 7 | 7963 if (round == 2) |
| 7964 STRCPY(retval + len, s); | |
| 7965 len += (int)STRLEN(s); | |
| 7966 if (round == 2) | |
| 7967 retval[len] = '\n'; | |
| 7968 ++len; | |
| 7969 } | |
| 7970 if (round == 2) | |
| 2011 | 7971 STRNCPY(retval + len, reg_getline_submatch(lnum), |
|
10245
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commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7972 rsm.sm_mmatch->endpos[no].col); |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7973 len += rsm.sm_mmatch->endpos[no].col; |
| 7 | 7974 if (round == 2) |
| 7975 retval[len] = NUL; | |
| 7976 ++len; | |
| 7977 } | |
| 7978 | |
| 840 | 7979 if (retval == NULL) |
| 7 | 7980 { |
| 7981 retval = lalloc((long_u)len, TRUE); | |
| 840 | 7982 if (retval == NULL) |
| 7 | 7983 return NULL; |
| 7984 } | |
| 7985 } | |
| 7986 } | |
| 7987 else | |
| 7988 { | |
|
10245
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commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7989 s = rsm.sm_match->startp[no]; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7990 if (s == NULL || rsm.sm_match->endp[no] == NULL) |
| 7 | 7991 retval = NULL; |
| 7992 else | |
|
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d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
7993 retval = vim_strnsave(s, (int)(rsm.sm_match->endp[no] - s)); |
| 7 | 7994 } |
| 7995 | |
| 7996 return retval; | |
| 7997 } | |
| 5794 | 7998 |
| 7999 /* | |
| 8000 * Used for the submatch() function with the optional non-zero argument: get | |
| 8001 * the list of strings from the n'th submatch in allocated memory with NULs | |
| 8002 * represented in NLs. | |
| 8003 * Returns a list of allocated strings. Returns NULL when not in a ":s" | |
| 8004 * command, for a non-existing submatch and for any error. | |
| 8005 */ | |
| 8006 list_T * | |
|
7833
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
8007 reg_submatch_list(int no) |
| 5794 | 8008 { |
| 8009 char_u *s; | |
| 8010 linenr_T slnum; | |
| 8011 linenr_T elnum; | |
| 8012 colnr_T scol; | |
| 8013 colnr_T ecol; | |
| 8014 int i; | |
| 8015 list_T *list; | |
| 8016 int error = FALSE; | |
| 8017 | |
| 8018 if (!can_f_submatch || no < 0) | |
| 8019 return NULL; | |
| 8020 | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
8021 if (rsm.sm_match == NULL) |
| 5794 | 8022 { |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
8023 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
|
8024 elnum = rsm.sm_mmatch->endpos[no].lnum; |
| 5794 | 8025 if (slnum < 0 || elnum < 0) |
| 8026 return NULL; | |
| 8027 | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
8028 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
|
8029 ecol = rsm.sm_mmatch->endpos[no].col; |
| 5794 | 8030 |
| 8031 list = list_alloc(); | |
| 8032 if (list == NULL) | |
| 8033 return NULL; | |
| 8034 | |
| 8035 s = reg_getline_submatch(slnum) + scol; | |
| 8036 if (slnum == elnum) | |
| 8037 { | |
| 8038 if (list_append_string(list, s, ecol - scol) == FAIL) | |
| 8039 error = TRUE; | |
| 8040 } | |
| 8041 else | |
| 8042 { | |
| 8043 if (list_append_string(list, s, -1) == FAIL) | |
| 8044 error = TRUE; | |
| 8045 for (i = 1; i < elnum - slnum; i++) | |
| 8046 { | |
| 8047 s = reg_getline_submatch(slnum + i); | |
| 8048 if (list_append_string(list, s, -1) == FAIL) | |
| 8049 error = TRUE; | |
| 8050 } | |
| 8051 s = reg_getline_submatch(elnum); | |
| 8052 if (list_append_string(list, s, ecol) == FAIL) | |
| 8053 error = TRUE; | |
| 8054 } | |
| 8055 } | |
| 8056 else | |
| 8057 { | |
|
10245
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commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
8058 s = rsm.sm_match->startp[no]; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
8059 if (s == NULL || rsm.sm_match->endp[no] == NULL) |
| 5794 | 8060 return NULL; |
| 8061 list = list_alloc(); | |
| 8062 if (list == NULL) | |
| 8063 return NULL; | |
| 8064 if (list_append_string(list, s, | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
8065 (int)(rsm.sm_match->endp[no] - s)) == FAIL) |
| 5794 | 8066 error = TRUE; |
| 8067 } | |
| 8068 | |
| 8069 if (error) | |
| 8070 { | |
|
8863
e1b84109506a
commit https://github.com/vim/vim/commit/107e1eef1df3b786ad3ad49fbdb9e058649303b5
Christian Brabandt <cb@256bit.org>
parents:
8825
diff
changeset
|
8071 list_free(list); |
| 5794 | 8072 return NULL; |
| 8073 } | |
| 8074 return list; | |
| 8075 } | |
| 7 | 8076 #endif |
| 4444 | 8077 |
| 8078 static regengine_T bt_regengine = | |
| 8079 { | |
| 8080 bt_regcomp, | |
|
4805
66803af09906
updated for version 7.3.1149
Bram Moolenaar <bram@vim.org>
parents:
4770
diff
changeset
|
8081 bt_regfree, |
| 4444 | 8082 bt_regexec_nl, |
| 6328 | 8083 bt_regexec_multi, |
| 8084 (char_u *)"" | |
| 4444 | 8085 }; |
| 8086 | |
| 8087 #include "regexp_nfa.c" | |
| 8088 | |
| 8089 static regengine_T nfa_regengine = | |
| 8090 { | |
| 8091 nfa_regcomp, | |
|
4805
66803af09906
updated for version 7.3.1149
Bram Moolenaar <bram@vim.org>
parents:
4770
diff
changeset
|
8092 nfa_regfree, |
| 4444 | 8093 nfa_regexec_nl, |
| 6328 | 8094 nfa_regexec_multi, |
| 8095 (char_u *)"" | |
| 4444 | 8096 }; |
| 8097 | |
| 8098 /* Which regexp engine to use? Needed for vim_regcomp(). | |
| 8099 * Must match with 'regexpengine'. */ | |
| 8100 static int regexp_engine = 0; | |
| 6328 | 8101 |
| 4444 | 8102 #ifdef DEBUG |
| 8103 static char_u regname[][30] = { | |
| 8104 "AUTOMATIC Regexp Engine", | |
|
4579
7a2be4a39423
updated for version 7.3.1037
Bram Moolenaar <bram@vim.org>
parents:
4505
diff
changeset
|
8105 "BACKTRACKING Regexp Engine", |
| 4444 | 8106 "NFA Regexp Engine" |
| 8107 }; | |
| 8108 #endif | |
| 8109 | |
| 8110 /* | |
| 8111 * Compile a regular expression into internal code. | |
|
4805
66803af09906
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Bram Moolenaar <bram@vim.org>
parents:
4770
diff
changeset
|
8112 * Returns the program in allocated memory. |
|
66803af09906
updated for version 7.3.1149
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parents:
4770
diff
changeset
|
8113 * Use vim_regfree() to free the memory. |
|
66803af09906
updated for version 7.3.1149
Bram Moolenaar <bram@vim.org>
parents:
4770
diff
changeset
|
8114 * Returns NULL for an error. |
| 4444 | 8115 */ |
| 8116 regprog_T * | |
|
7833
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
8117 vim_regcomp(char_u *expr_arg, int re_flags) |
| 4444 | 8118 { |
| 8119 regprog_T *prog = NULL; | |
| 8120 char_u *expr = expr_arg; | |
| 8121 | |
| 8122 regexp_engine = p_re; | |
| 8123 | |
| 8124 /* Check for prefix "\%#=", that sets the regexp engine */ | |
| 8125 if (STRNCMP(expr, "\\%#=", 4) == 0) | |
| 8126 { | |
| 8127 int newengine = expr[4] - '0'; | |
| 8128 | |
| 8129 if (newengine == AUTOMATIC_ENGINE | |
| 8130 || newengine == BACKTRACKING_ENGINE | |
| 8131 || newengine == NFA_ENGINE) | |
| 8132 { | |
| 8133 regexp_engine = expr[4] - '0'; | |
| 8134 expr += 5; | |
| 8135 #ifdef DEBUG | |
| 5897 | 8136 smsg((char_u *)"New regexp mode selected (%d): %s", |
| 8137 regexp_engine, regname[newengine]); | |
| 4444 | 8138 #endif |
| 8139 } | |
| 8140 else | |
| 8141 { | |
| 8142 EMSG(_("E864: \\%#= can only be followed by 0, 1, or 2. The automatic engine will be used ")); | |
| 8143 regexp_engine = AUTOMATIC_ENGINE; | |
| 8144 } | |
| 8145 } | |
| 8146 bt_regengine.expr = expr; | |
| 8147 nfa_regengine.expr = expr; | |
| 8148 | |
| 8149 /* | |
| 8150 * First try the NFA engine, unless backtracking was requested. | |
| 8151 */ | |
| 8152 if (regexp_engine != BACKTRACKING_ENGINE) | |
| 6533 | 8153 prog = nfa_regengine.regcomp(expr, |
| 8154 re_flags + (regexp_engine == AUTOMATIC_ENGINE ? RE_AUTO : 0)); | |
| 4444 | 8155 else |
| 8156 prog = bt_regengine.regcomp(expr, re_flags); | |
| 8157 | |
| 6328 | 8158 /* Check for error compiling regexp with initial engine. */ |
| 8159 if (prog == NULL) | |
| 4444 | 8160 { |
| 4460 | 8161 #ifdef BT_REGEXP_DEBUG_LOG |
| 4444 | 8162 if (regexp_engine != BACKTRACKING_ENGINE) /* debugging log for NFA */ |
| 8163 { | |
| 8164 FILE *f; | |
| 4460 | 8165 f = fopen(BT_REGEXP_DEBUG_LOG_NAME, "a"); |
| 4444 | 8166 if (f) |
| 8167 { | |
|
4762
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diff
changeset
|
8168 fprintf(f, "Syntax error in \"%s\"\n", expr); |
| 4444 | 8169 fclose(f); |
| 8170 } | |
| 8171 else | |
| 4460 | 8172 EMSG2("(NFA) Could not open \"%s\" to write !!!", |
| 8173 BT_REGEXP_DEBUG_LOG_NAME); | |
| 4444 | 8174 } |
| 8175 #endif | |
| 8176 /* | |
| 6328 | 8177 * If the NFA engine failed, try the backtracking engine. |
| 6533 | 8178 * The NFA engine also fails for patterns that it can't handle well |
| 8179 * but are still valid patterns, thus a retry should work. | |
| 8180 */ | |
| 4444 | 8181 if (regexp_engine == AUTOMATIC_ENGINE) |
| 6328 | 8182 { |
| 6533 | 8183 regexp_engine = BACKTRACKING_ENGINE; |
|
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diff
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|
8184 prog = bt_regengine.regcomp(expr, re_flags); |
| 6328 | 8185 } |
|
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|
8186 } |
| 4444 | 8187 |
| 6328 | 8188 if (prog != NULL) |
| 8189 { | |
| 8190 /* Store the info needed to call regcomp() again when the engine turns | |
| 8191 * out to be very slow when executing it. */ | |
| 8192 prog->re_engine = regexp_engine; | |
| 8193 prog->re_flags = re_flags; | |
| 8194 } | |
| 8195 | |
| 4444 | 8196 return prog; |
| 8197 } | |
| 8198 | |
| 8199 /* | |
|
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diff
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|
8200 * Free a compiled regexp program, returned by vim_regcomp(). |
|
66803af09906
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|
8201 */ |
|
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|
8202 void |
|
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diff
changeset
|
8203 vim_regfree(regprog_T *prog) |
|
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|
8204 { |
|
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|
8205 if (prog != NULL) |
|
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changeset
|
8206 prog->engine->regfree(prog); |
|
66803af09906
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|
8207 } |
|
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diff
changeset
|
8208 |
| 6328 | 8209 #ifdef FEAT_EVAL |
|
7805
0b6c37dd858d
commit https://github.com/vim/vim/commit/baaa7e9ec7398a813e21285c272fa99792642077
Christian Brabandt <cb@256bit.org>
parents:
7009
diff
changeset
|
8210 static void report_re_switch(char_u *pat); |
| 6328 | 8211 |
| 8212 static void | |
|
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diff
changeset
|
8213 report_re_switch(char_u *pat) |
| 6328 | 8214 { |
| 8215 if (p_verbose > 0) | |
| 8216 { | |
| 8217 verbose_enter(); | |
| 8218 MSG_PUTS(_("Switching to backtracking RE engine for pattern: ")); | |
| 8219 MSG_PUTS(pat); | |
| 8220 verbose_leave(); | |
| 8221 } | |
| 8222 } | |
| 8223 #endif | |
| 8224 | |
|
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|
8225 /* |
| 4444 | 8226 * Match a regexp against a string. |
| 8227 * "rmp->regprog" is a compiled regexp as returned by vim_regcomp(). | |
| 6375 | 8228 * Note: "rmp->regprog" may be freed and changed. |
| 4444 | 8229 * Uses curbuf for line count and 'iskeyword'. |
| 6328 | 8230 * When "nl" is TRUE consider a "\n" in "line" to be a line break. |
| 4444 | 8231 * |
| 8232 * Return TRUE if there is a match, FALSE if not. | |
| 8233 */ | |
| 6328 | 8234 static int |
|
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|
8235 vim_regexec_string( |
|
7833
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diff
changeset
|
8236 regmatch_T *rmp, |
|
c079097365f3
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diff
changeset
|
8237 char_u *line, /* string to match against */ |
|
c079097365f3
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diff
changeset
|
8238 colnr_T col, /* column to start looking for match */ |
|
c079097365f3
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parents:
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diff
changeset
|
8239 int nl) |
| 6328 | 8240 { |
|
10245
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diff
changeset
|
8241 int result; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
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parents:
10187
diff
changeset
|
8242 regexec_T rex_save; |
|
d76ccdacb41e
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parents:
10187
diff
changeset
|
8243 int rex_in_use_save = rex_in_use; |
|
d76ccdacb41e
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diff
changeset
|
8244 |
|
d76ccdacb41e
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parents:
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diff
changeset
|
8245 if (rex_in_use) |
|
d76ccdacb41e
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parents:
10187
diff
changeset
|
8246 /* Being called recursively, save the state. */ |
|
d76ccdacb41e
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diff
changeset
|
8247 rex_save = rex; |
|
d76ccdacb41e
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diff
changeset
|
8248 rex_in_use = TRUE; |
|
d76ccdacb41e
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10187
diff
changeset
|
8249 rex.reg_startp = NULL; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
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diff
changeset
|
8250 rex.reg_endp = NULL; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
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parents:
10187
diff
changeset
|
8251 rex.reg_startpos = NULL; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
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parents:
10187
diff
changeset
|
8252 rex.reg_endpos = NULL; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
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parents:
10187
diff
changeset
|
8253 |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
8254 result = rmp->regprog->engine->regexec_nl(rmp, line, col, nl); |
| 6328 | 8255 |
| 8256 /* NFA engine aborted because it's very slow. */ | |
| 8257 if (rmp->regprog->re_engine == AUTOMATIC_ENGINE | |
| 8258 && result == NFA_TOO_EXPENSIVE) | |
| 8259 { | |
| 8260 int save_p_re = p_re; | |
| 8261 int re_flags = rmp->regprog->re_flags; | |
| 8262 char_u *pat = vim_strsave(((nfa_regprog_T *)rmp->regprog)->pattern); | |
| 8263 | |
| 8264 p_re = BACKTRACKING_ENGINE; | |
| 8265 vim_regfree(rmp->regprog); | |
| 8266 if (pat != NULL) | |
| 8267 { | |
| 8268 #ifdef FEAT_EVAL | |
| 8269 report_re_switch(pat); | |
| 8270 #endif | |
| 8271 rmp->regprog = vim_regcomp(pat, re_flags); | |
| 8272 if (rmp->regprog != NULL) | |
| 8273 result = rmp->regprog->engine->regexec_nl(rmp, line, col, nl); | |
| 8274 vim_free(pat); | |
| 8275 } | |
| 8276 | |
| 8277 p_re = save_p_re; | |
| 8278 } | |
|
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parents:
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diff
changeset
|
8279 |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
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parents:
10187
diff
changeset
|
8280 rex_in_use = rex_in_use_save; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
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parents:
10187
diff
changeset
|
8281 if (rex_in_use) |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
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parents:
10187
diff
changeset
|
8282 rex = rex_save; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
8283 |
| 6390 | 8284 return result > 0; |
| 6328 | 8285 } |
| 8286 | |
| 6375 | 8287 /* |
| 8288 * Note: "*prog" may be freed and changed. | |
| 6390 | 8289 * Return TRUE if there is a match, FALSE if not. |
| 6375 | 8290 */ |
| 8291 int | |
|
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parents:
7807
diff
changeset
|
8292 vim_regexec_prog( |
|
c079097365f3
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parents:
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diff
changeset
|
8293 regprog_T **prog, |
|
c079097365f3
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parents:
7807
diff
changeset
|
8294 int ignore_case, |
|
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
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parents:
7807
diff
changeset
|
8295 char_u *line, |
|
c079097365f3
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parents:
7807
diff
changeset
|
8296 colnr_T col) |
| 6375 | 8297 { |
|
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diff
changeset
|
8298 int r; |
|
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11527
diff
changeset
|
8299 regmatch_T regmatch; |
| 6375 | 8300 |
| 8301 regmatch.regprog = *prog; | |
| 8302 regmatch.rm_ic = ignore_case; | |
|
11529
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parents:
11527
diff
changeset
|
8303 r = vim_regexec_string(®match, line, col, FALSE); |
| 6375 | 8304 *prog = regmatch.regprog; |
| 8305 return r; | |
| 8306 } | |
| 8307 | |
| 8308 /* | |
| 8309 * Note: "rmp->regprog" may be freed and changed. | |
| 6390 | 8310 * Return TRUE if there is a match, FALSE if not. |
| 6375 | 8311 */ |
| 4444 | 8312 int |
|
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parents:
7807
diff
changeset
|
8313 vim_regexec(regmatch_T *rmp, char_u *line, colnr_T col) |
| 4444 | 8314 { |
|
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parents:
11527
diff
changeset
|
8315 return vim_regexec_string(rmp, line, col, FALSE); |
| 4444 | 8316 } |
| 8317 | |
| 8318 #if defined(FEAT_MODIFY_FNAME) || defined(FEAT_EVAL) \ | |
| 8319 || defined(FIND_REPLACE_DIALOG) || defined(PROTO) | |
| 8320 /* | |
| 8321 * Like vim_regexec(), but consider a "\n" in "line" to be a line break. | |
| 6375 | 8322 * Note: "rmp->regprog" may be freed and changed. |
| 6390 | 8323 * Return TRUE if there is a match, FALSE if not. |
| 4444 | 8324 */ |
| 8325 int | |
|
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7807
diff
changeset
|
8326 vim_regexec_nl(regmatch_T *rmp, char_u *line, colnr_T col) |
| 4444 | 8327 { |
|
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|
8328 return vim_regexec_string(rmp, line, col, TRUE); |
| 4444 | 8329 } |
| 8330 #endif | |
| 8331 | |
| 8332 /* | |
| 8333 * Match a regexp against multiple lines. | |
| 8334 * "rmp->regprog" is a compiled regexp as returned by vim_regcomp(). | |
| 6375 | 8335 * Note: "rmp->regprog" may be freed and changed. |
| 4444 | 8336 * Uses curbuf for line count and 'iskeyword'. |
| 8337 * | |
| 8338 * Return zero if there is no match. Return number of lines contained in the | |
| 8339 * match otherwise. | |
| 8340 */ | |
| 8341 long | |
|
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diff
changeset
|
8342 vim_regexec_multi( |
|
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diff
changeset
|
8343 regmmatch_T *rmp, |
|
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diff
changeset
|
8344 win_T *win, /* window in which to search or NULL */ |
|
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diff
changeset
|
8345 buf_T *buf, /* buffer in which to search */ |
|
c079097365f3
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diff
changeset
|
8346 linenr_T lnum, /* nr of line to start looking for match */ |
|
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changeset
|
8347 colnr_T col, /* column to start looking for match */ |
|
11521
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|
8348 proftime_T *tm, /* timeout limit or NULL */ |
|
578df034735d
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changeset
|
8349 int *timed_out) /* flag is set when timeout limit reached */ |
| 4444 | 8350 { |
|
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changeset
|
8351 int result; |
|
d76ccdacb41e
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changeset
|
8352 regexec_T rex_save; |
|
d76ccdacb41e
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changeset
|
8353 int rex_in_use_save = rex_in_use; |
|
d76ccdacb41e
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changeset
|
8354 |
|
d76ccdacb41e
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changeset
|
8355 if (rex_in_use) |
|
d76ccdacb41e
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diff
changeset
|
8356 /* Being called recursively, save the state. */ |
|
d76ccdacb41e
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diff
changeset
|
8357 rex_save = rex; |
|
d76ccdacb41e
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changeset
|
8358 rex_in_use = TRUE; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
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8359 |
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11521
578df034735d
patch 8.0.0643: when a pattern search is slow Vim becomes unusable
Christian Brabandt <cb@256bit.org>
parents:
11482
diff
changeset
|
8360 result = rmp->regprog->engine->regexec_multi( |
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578df034735d
patch 8.0.0643: when a pattern search is slow Vim becomes unusable
Christian Brabandt <cb@256bit.org>
parents:
11482
diff
changeset
|
8361 rmp, win, buf, lnum, col, tm, timed_out); |
| 6328 | 8362 |
| 8363 /* NFA engine aborted because it's very slow. */ | |
| 8364 if (rmp->regprog->re_engine == AUTOMATIC_ENGINE | |
| 8365 && result == NFA_TOO_EXPENSIVE) | |
| 8366 { | |
| 8367 int save_p_re = p_re; | |
| 8368 int re_flags = rmp->regprog->re_flags; | |
| 8369 char_u *pat = vim_strsave(((nfa_regprog_T *)rmp->regprog)->pattern); | |
| 8370 | |
| 8371 p_re = BACKTRACKING_ENGINE; | |
| 8372 vim_regfree(rmp->regprog); | |
| 8373 if (pat != NULL) | |
| 8374 { | |
| 8375 #ifdef FEAT_EVAL | |
| 8376 report_re_switch(pat); | |
| 8377 #endif | |
| 8378 rmp->regprog = vim_regcomp(pat, re_flags); | |
| 8379 if (rmp->regprog != NULL) | |
| 8380 result = rmp->regprog->engine->regexec_multi( | |
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11521
578df034735d
patch 8.0.0643: when a pattern search is slow Vim becomes unusable
Christian Brabandt <cb@256bit.org>
parents:
11482
diff
changeset
|
8381 rmp, win, buf, lnum, col, tm, timed_out); |
| 6328 | 8382 vim_free(pat); |
| 8383 } | |
| 8384 p_re = save_p_re; | |
| 8385 } | |
| 8386 | |
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10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
8387 rex_in_use = rex_in_use_save; |
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d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
8388 if (rex_in_use) |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
8389 rex = rex_save; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
8390 |
| 6390 | 8391 return result <= 0 ? 0 : result; |
| 4444 | 8392 } |