Mercurial > vim
annotate src/regexp.c @ 6766:c3ab2c7db150
Added tag v7-4-704 for changeset ec46a5ca1b51
| author | Bram Moolenaar <bram@vim.org> |
|---|---|
| date | Tue, 21 Apr 2015 14:02:35 +0200 |
| parents | ec46a5ca1b51 |
| children | de90405940be |
| rev | line source |
|---|---|
| 7 | 1 /* vi:set ts=8 sts=4 sw=4: |
| 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 no_Magic __ARGS((int x)); | |
| 259 static int toggle_Magic __ARGS((int x)); | |
| 260 | |
| 261 static int | |
| 262 no_Magic(x) | |
| 263 int x; | |
| 264 { | |
| 265 if (is_Magic(x)) | |
| 266 return un_Magic(x); | |
| 267 return x; | |
| 268 } | |
| 269 | |
| 270 static int | |
| 271 toggle_Magic(x) | |
| 272 int x; | |
| 273 { | |
| 274 if (is_Magic(x)) | |
| 275 return un_Magic(x); | |
| 276 return Magic(x); | |
| 277 } | |
| 278 | |
| 279 /* | |
| 280 * The first byte of the regexp internal "program" is actually this magic | |
| 281 * number; the start node begins in the second byte. It's used to catch the | |
| 282 * most severe mutilation of the program by the caller. | |
| 283 */ | |
| 284 | |
| 285 #define REGMAGIC 0234 | |
| 286 | |
| 287 /* | |
| 288 * Opcode notes: | |
| 289 * | |
| 290 * BRANCH The set of branches constituting a single choice are hooked | |
| 291 * together with their "next" pointers, since precedence prevents | |
| 292 * anything being concatenated to any individual branch. The | |
| 293 * "next" pointer of the last BRANCH in a choice points to the | |
| 294 * thing following the whole choice. This is also where the | |
| 295 * final "next" pointer of each individual branch points; each | |
| 296 * branch starts with the operand node of a BRANCH node. | |
| 297 * | |
| 298 * BACK Normal "next" pointers all implicitly point forward; BACK | |
| 299 * exists to make loop structures possible. | |
| 300 * | |
| 301 * STAR,PLUS '=', and complex '*' and '+', are implemented as circular | |
| 302 * BRANCH structures using BACK. Simple cases (one character | |
| 303 * per match) are implemented with STAR and PLUS for speed | |
| 304 * and to minimize recursive plunges. | |
| 305 * | |
| 306 * BRACE_LIMITS This is always followed by a BRACE_SIMPLE or BRACE_COMPLEX | |
| 307 * node, and defines the min and max limits to be used for that | |
| 308 * node. | |
| 309 * | |
| 310 * MOPEN,MCLOSE ...are numbered at compile time. | |
| 311 * ZOPEN,ZCLOSE ...ditto | |
| 312 */ | |
| 313 | |
| 314 /* | |
| 315 * A node is one char of opcode followed by two chars of "next" pointer. | |
| 316 * "Next" pointers are stored as two 8-bit bytes, high order first. The | |
| 317 * value is a positive offset from the opcode of the node containing it. | |
| 318 * An operand, if any, simply follows the node. (Note that much of the | |
| 319 * code generation knows about this implicit relationship.) | |
| 320 * | |
| 321 * Using two bytes for the "next" pointer is vast overkill for most things, | |
| 322 * but allows patterns to get big without disasters. | |
| 323 */ | |
| 324 #define OP(p) ((int)*(p)) | |
| 325 #define NEXT(p) (((*((p) + 1) & 0377) << 8) + (*((p) + 2) & 0377)) | |
| 326 #define OPERAND(p) ((p) + 3) | |
| 327 /* Obtain an operand that was stored as four bytes, MSB first. */ | |
| 328 #define OPERAND_MIN(p) (((long)(p)[3] << 24) + ((long)(p)[4] << 16) \ | |
| 329 + ((long)(p)[5] << 8) + (long)(p)[6]) | |
| 330 /* Obtain a second operand stored as four bytes. */ | |
| 331 #define OPERAND_MAX(p) OPERAND_MIN((p) + 4) | |
| 332 /* Obtain a second single-byte operand stored after a four bytes operand. */ | |
| 333 #define OPERAND_CMP(p) (p)[7] | |
| 334 | |
| 335 /* | |
| 336 * Utility definitions. | |
| 337 */ | |
| 338 #define UCHARAT(p) ((int)*(char_u *)(p)) | |
| 339 | |
| 340 /* Used for an error (down from) vim_regcomp(): give the error message, set | |
| 341 * rc_did_emsg and return NULL */ | |
| 653 | 342 #define EMSG_RET_NULL(m) return (EMSG(m), rc_did_emsg = TRUE, (void *)NULL) |
| 308 | 343 #define EMSG_RET_FAIL(m) return (EMSG(m), rc_did_emsg = TRUE, FAIL) |
| 4444 | 344 #define EMSG2_RET_NULL(m, c) return (EMSG2((m), (c) ? "" : "\\"), rc_did_emsg = TRUE, (void *)NULL) |
| 345 #define EMSG2_RET_FAIL(m, c) return (EMSG2((m), (c) ? "" : "\\"), rc_did_emsg = TRUE, FAIL) | |
| 346 #define EMSG_ONE_RET_NULL EMSG2_RET_NULL(_("E369: invalid item in %s%%[]"), reg_magic == MAGIC_ALL) | |
| 7 | 347 |
| 348 #define MAX_LIMIT (32767L << 16L) | |
| 349 | |
| 350 static int re_multi_type __ARGS((int)); | |
| 351 static int cstrncmp __ARGS((char_u *s1, char_u *s2, int *n)); | |
| 352 static char_u *cstrchr __ARGS((char_u *, int)); | |
| 353 | |
| 4444 | 354 #ifdef BT_REGEXP_DUMP |
| 355 static void regdump __ARGS((char_u *, bt_regprog_T *)); | |
| 356 #endif | |
| 7 | 357 #ifdef DEBUG |
| 358 static char_u *regprop __ARGS((char_u *)); | |
| 359 #endif | |
| 360 | |
| 6203 | 361 static int re_mult_next __ARGS((char *what)); |
| 362 | |
| 4444 | 363 static char_u e_missingbracket[] = N_("E769: Missing ] after %s["); |
| 364 static char_u e_unmatchedpp[] = N_("E53: Unmatched %s%%("); | |
| 365 static char_u e_unmatchedp[] = N_("E54: Unmatched %s("); | |
| 366 static char_u e_unmatchedpar[] = N_("E55: Unmatched %s)"); | |
|
4720
bd6bef0bd0fb
updated for version 7.3.1107
Bram Moolenaar <bram@vim.org>
parents:
4688
diff
changeset
|
367 #ifdef FEAT_SYN_HL |
|
4688
371cc0c44097
updated for version 7.3.1091
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
368 static char_u e_z_not_allowed[] = N_("E66: \\z( not allowed here"); |
|
371cc0c44097
updated for version 7.3.1091
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
369 static char_u e_z1_not_allowed[] = N_("E67: \\z1 et al. not allowed here"); |
|
4720
bd6bef0bd0fb
updated for version 7.3.1107
Bram Moolenaar <bram@vim.org>
parents:
4688
diff
changeset
|
370 #endif |
|
4744
a62695305e03
updated for version 7.3.1119
Bram Moolenaar <bram@vim.org>
parents:
4732
diff
changeset
|
371 static char_u e_missing_sb[] = N_("E69: Missing ] after %s%%["); |
|
4760
532a9855bd30
updated for version 7.3.1127
Bram Moolenaar <bram@vim.org>
parents:
4746
diff
changeset
|
372 static char_u e_empty_sb[] = N_("E70: Empty %s%%[]"); |
| 7 | 373 #define NOT_MULTI 0 |
| 374 #define MULTI_ONE 1 | |
| 375 #define MULTI_MULT 2 | |
| 376 /* | |
| 377 * Return NOT_MULTI if c is not a "multi" operator. | |
| 378 * Return MULTI_ONE if c is a single "multi" operator. | |
| 379 * Return MULTI_MULT if c is a multi "multi" operator. | |
| 380 */ | |
| 381 static int | |
| 382 re_multi_type(c) | |
| 383 int c; | |
| 384 { | |
| 385 if (c == Magic('@') || c == Magic('=') || c == Magic('?')) | |
| 386 return MULTI_ONE; | |
| 387 if (c == Magic('*') || c == Magic('+') || c == Magic('{')) | |
| 388 return MULTI_MULT; | |
| 389 return NOT_MULTI; | |
| 390 } | |
| 391 | |
| 392 /* | |
| 393 * Flags to be passed up and down. | |
| 394 */ | |
| 395 #define HASWIDTH 0x1 /* Known never to match null string. */ | |
| 396 #define SIMPLE 0x2 /* Simple enough to be STAR/PLUS operand. */ | |
| 397 #define SPSTART 0x4 /* Starts with * or +. */ | |
| 398 #define HASNL 0x8 /* Contains some \n. */ | |
| 399 #define HASLOOKBH 0x10 /* Contains "\@<=" or "\@<!". */ | |
| 400 #define WORST 0 /* Worst case. */ | |
| 401 | |
| 402 /* | |
| 403 * When regcode is set to this value, code is not emitted and size is computed | |
| 404 * instead. | |
| 405 */ | |
| 406 #define JUST_CALC_SIZE ((char_u *) -1) | |
| 407 | |
| 359 | 408 static char_u *reg_prev_sub = NULL; |
| 409 | |
| 7 | 410 /* |
| 411 * REGEXP_INRANGE contains all characters which are always special in a [] | |
| 412 * range after '\'. | |
| 413 * REGEXP_ABBR contains all characters which act as abbreviations after '\'. | |
| 414 * These are: | |
| 415 * \n - New line (NL). | |
| 416 * \r - Carriage Return (CR). | |
| 417 * \t - Tab (TAB). | |
| 418 * \e - Escape (ESC). | |
| 419 * \b - Backspace (Ctrl_H). | |
| 24 | 420 * \d - Character code in decimal, eg \d123 |
| 421 * \o - Character code in octal, eg \o80 | |
| 422 * \x - Character code in hex, eg \x4a | |
| 423 * \u - Multibyte character code, eg \u20ac | |
| 424 * \U - Long multibyte character code, eg \U12345678 | |
| 7 | 425 */ |
| 426 static char_u REGEXP_INRANGE[] = "]^-n\\"; | |
| 24 | 427 static char_u REGEXP_ABBR[] = "nrtebdoxuU"; |
| 7 | 428 |
| 429 static int backslash_trans __ARGS((int c)); | |
| 167 | 430 static int get_char_class __ARGS((char_u **pp)); |
| 431 static int get_equi_class __ARGS((char_u **pp)); | |
| 432 static void reg_equi_class __ARGS((int c)); | |
| 433 static int get_coll_element __ARGS((char_u **pp)); | |
| 7 | 434 static char_u *skip_anyof __ARGS((char_u *p)); |
| 435 static void init_class_tab __ARGS((void)); | |
| 436 | |
| 437 /* | |
| 438 * Translate '\x' to its control character, except "\n", which is Magic. | |
| 439 */ | |
| 440 static int | |
| 441 backslash_trans(c) | |
| 442 int c; | |
| 443 { | |
| 444 switch (c) | |
| 445 { | |
| 446 case 'r': return CAR; | |
| 447 case 't': return TAB; | |
| 448 case 'e': return ESC; | |
| 449 case 'b': return BS; | |
| 450 } | |
| 451 return c; | |
| 452 } | |
| 453 | |
| 454 /* | |
| 167 | 455 * Check for a character class name "[:name:]". "pp" points to the '['. |
| 7 | 456 * Returns one of the CLASS_ items. CLASS_NONE means that no item was |
| 457 * recognized. Otherwise "pp" is advanced to after the item. | |
| 458 */ | |
| 459 static int | |
| 167 | 460 get_char_class(pp) |
| 7 | 461 char_u **pp; |
| 462 { | |
| 463 static const char *(class_names[]) = | |
| 464 { | |
| 465 "alnum:]", | |
| 466 #define CLASS_ALNUM 0 | |
| 467 "alpha:]", | |
| 468 #define CLASS_ALPHA 1 | |
| 469 "blank:]", | |
| 470 #define CLASS_BLANK 2 | |
| 471 "cntrl:]", | |
| 472 #define CLASS_CNTRL 3 | |
| 473 "digit:]", | |
| 474 #define CLASS_DIGIT 4 | |
| 475 "graph:]", | |
| 476 #define CLASS_GRAPH 5 | |
| 477 "lower:]", | |
| 478 #define CLASS_LOWER 6 | |
| 479 "print:]", | |
| 480 #define CLASS_PRINT 7 | |
| 481 "punct:]", | |
| 482 #define CLASS_PUNCT 8 | |
| 483 "space:]", | |
| 484 #define CLASS_SPACE 9 | |
| 485 "upper:]", | |
| 486 #define CLASS_UPPER 10 | |
| 487 "xdigit:]", | |
| 488 #define CLASS_XDIGIT 11 | |
| 489 "tab:]", | |
| 490 #define CLASS_TAB 12 | |
| 491 "return:]", | |
| 492 #define CLASS_RETURN 13 | |
| 493 "backspace:]", | |
| 494 #define CLASS_BACKSPACE 14 | |
| 495 "escape:]", | |
| 496 #define CLASS_ESCAPE 15 | |
| 497 }; | |
| 498 #define CLASS_NONE 99 | |
| 499 int i; | |
| 500 | |
| 501 if ((*pp)[1] == ':') | |
| 502 { | |
| 1877 | 503 for (i = 0; i < (int)(sizeof(class_names) / sizeof(*class_names)); ++i) |
| 7 | 504 if (STRNCMP(*pp + 2, class_names[i], STRLEN(class_names[i])) == 0) |
| 505 { | |
| 506 *pp += STRLEN(class_names[i]) + 2; | |
| 507 return i; | |
| 508 } | |
| 509 } | |
| 510 return CLASS_NONE; | |
| 511 } | |
| 512 | |
| 513 /* | |
| 514 * Specific version of character class functions. | |
| 515 * Using a table to keep this fast. | |
| 516 */ | |
| 517 static short class_tab[256]; | |
| 518 | |
| 519 #define RI_DIGIT 0x01 | |
| 520 #define RI_HEX 0x02 | |
| 521 #define RI_OCTAL 0x04 | |
| 522 #define RI_WORD 0x08 | |
| 523 #define RI_HEAD 0x10 | |
| 524 #define RI_ALPHA 0x20 | |
| 525 #define RI_LOWER 0x40 | |
| 526 #define RI_UPPER 0x80 | |
| 527 #define RI_WHITE 0x100 | |
| 528 | |
| 529 static void | |
| 530 init_class_tab() | |
| 531 { | |
| 532 int i; | |
| 533 static int done = FALSE; | |
| 534 | |
| 535 if (done) | |
| 536 return; | |
| 537 | |
| 538 for (i = 0; i < 256; ++i) | |
| 539 { | |
| 540 if (i >= '0' && i <= '7') | |
| 541 class_tab[i] = RI_DIGIT + RI_HEX + RI_OCTAL + RI_WORD; | |
| 542 else if (i >= '8' && i <= '9') | |
| 543 class_tab[i] = RI_DIGIT + RI_HEX + RI_WORD; | |
| 544 else if (i >= 'a' && i <= 'f') | |
| 545 class_tab[i] = RI_HEX + RI_WORD + RI_HEAD + RI_ALPHA + RI_LOWER; | |
| 546 #ifdef EBCDIC | |
| 547 else if ((i >= 'g' && i <= 'i') || (i >= 'j' && i <= 'r') | |
| 548 || (i >= 's' && i <= 'z')) | |
| 549 #else | |
| 550 else if (i >= 'g' && i <= 'z') | |
| 551 #endif | |
| 552 class_tab[i] = RI_WORD + RI_HEAD + RI_ALPHA + RI_LOWER; | |
| 553 else if (i >= 'A' && i <= 'F') | |
| 554 class_tab[i] = RI_HEX + RI_WORD + RI_HEAD + RI_ALPHA + RI_UPPER; | |
| 555 #ifdef EBCDIC | |
| 556 else if ((i >= 'G' && i <= 'I') || ( i >= 'J' && i <= 'R') | |
| 557 || (i >= 'S' && i <= 'Z')) | |
| 558 #else | |
| 559 else if (i >= 'G' && i <= 'Z') | |
| 560 #endif | |
| 561 class_tab[i] = RI_WORD + RI_HEAD + RI_ALPHA + RI_UPPER; | |
| 562 else if (i == '_') | |
| 563 class_tab[i] = RI_WORD + RI_HEAD; | |
| 564 else | |
| 565 class_tab[i] = 0; | |
| 566 } | |
| 567 class_tab[' '] |= RI_WHITE; | |
| 568 class_tab['\t'] |= RI_WHITE; | |
| 569 done = TRUE; | |
| 570 } | |
| 571 | |
| 572 #ifdef FEAT_MBYTE | |
| 573 # define ri_digit(c) (c < 0x100 && (class_tab[c] & RI_DIGIT)) | |
| 574 # define ri_hex(c) (c < 0x100 && (class_tab[c] & RI_HEX)) | |
| 575 # define ri_octal(c) (c < 0x100 && (class_tab[c] & RI_OCTAL)) | |
| 576 # define ri_word(c) (c < 0x100 && (class_tab[c] & RI_WORD)) | |
| 577 # define ri_head(c) (c < 0x100 && (class_tab[c] & RI_HEAD)) | |
| 578 # define ri_alpha(c) (c < 0x100 && (class_tab[c] & RI_ALPHA)) | |
| 579 # define ri_lower(c) (c < 0x100 && (class_tab[c] & RI_LOWER)) | |
| 580 # define ri_upper(c) (c < 0x100 && (class_tab[c] & RI_UPPER)) | |
| 581 # define ri_white(c) (c < 0x100 && (class_tab[c] & RI_WHITE)) | |
| 582 #else | |
| 583 # define ri_digit(c) (class_tab[c] & RI_DIGIT) | |
| 584 # define ri_hex(c) (class_tab[c] & RI_HEX) | |
| 585 # define ri_octal(c) (class_tab[c] & RI_OCTAL) | |
| 586 # define ri_word(c) (class_tab[c] & RI_WORD) | |
| 587 # define ri_head(c) (class_tab[c] & RI_HEAD) | |
| 588 # define ri_alpha(c) (class_tab[c] & RI_ALPHA) | |
| 589 # define ri_lower(c) (class_tab[c] & RI_LOWER) | |
| 590 # define ri_upper(c) (class_tab[c] & RI_UPPER) | |
| 591 # define ri_white(c) (class_tab[c] & RI_WHITE) | |
| 592 #endif | |
| 593 | |
| 594 /* flags for regflags */ | |
| 595 #define RF_ICASE 1 /* ignore case */ | |
| 596 #define RF_NOICASE 2 /* don't ignore case */ | |
| 597 #define RF_HASNL 4 /* can match a NL */ | |
| 598 #define RF_ICOMBINE 8 /* ignore combining characters */ | |
| 599 #define RF_LOOKBH 16 /* uses "\@<=" or "\@<!" */ | |
| 600 | |
| 601 /* | |
| 602 * Global work variables for vim_regcomp(). | |
| 603 */ | |
| 604 | |
| 605 static char_u *regparse; /* Input-scan pointer. */ | |
| 606 static int prevchr_len; /* byte length of previous char */ | |
| 607 static int num_complex_braces; /* Complex \{...} count */ | |
| 608 static int regnpar; /* () count. */ | |
| 609 #ifdef FEAT_SYN_HL | |
| 610 static int regnzpar; /* \z() count. */ | |
| 611 static int re_has_z; /* \z item detected */ | |
| 612 #endif | |
| 613 static char_u *regcode; /* Code-emit pointer, or JUST_CALC_SIZE */ | |
| 614 static long regsize; /* Code size. */ | |
| 2010 | 615 static int reg_toolong; /* TRUE when offset out of range */ |
| 7 | 616 static char_u had_endbrace[NSUBEXP]; /* flags, TRUE if end of () found */ |
| 617 static unsigned regflags; /* RF_ flags for prog */ | |
| 618 static long brace_min[10]; /* Minimums for complex brace repeats */ | |
| 619 static long brace_max[10]; /* Maximums for complex brace repeats */ | |
| 620 static int brace_count[10]; /* Current counts for complex brace repeats */ | |
| 621 #if defined(FEAT_SYN_HL) || defined(PROTO) | |
| 622 static int had_eol; /* TRUE when EOL found by vim_regcomp() */ | |
| 623 #endif | |
| 624 static int one_exactly = FALSE; /* only do one char for EXACTLY */ | |
| 625 | |
| 626 static int reg_magic; /* magicness of the pattern: */ | |
| 627 #define MAGIC_NONE 1 /* "\V" very unmagic */ | |
| 628 #define MAGIC_OFF 2 /* "\M" or 'magic' off */ | |
| 629 #define MAGIC_ON 3 /* "\m" or 'magic' */ | |
| 630 #define MAGIC_ALL 4 /* "\v" very magic */ | |
| 631 | |
| 632 static int reg_string; /* matching with a string instead of a buffer | |
| 633 line */ | |
| 481 | 634 static int reg_strict; /* "[abc" is illegal */ |
| 7 | 635 |
| 636 /* | |
| 637 * META contains all characters that may be magic, except '^' and '$'. | |
| 638 */ | |
| 639 | |
| 640 #ifdef EBCDIC | |
| 641 static char_u META[] = "%&()*+.123456789<=>?@ACDFHIKLMOPSUVWX[_acdfhiklmnopsuvwxz{|~"; | |
| 642 #else | |
| 643 /* META[] is used often enough to justify turning it into a table. */ | |
| 644 static char_u META_flags[] = { | |
| 645 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
| 646 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
| 647 /* % & ( ) * + . */ | |
| 648 0, 0, 0, 0, 0, 1, 1, 0, 1, 1, 1, 1, 0, 0, 1, 0, | |
| 649 /* 1 2 3 4 5 6 7 8 9 < = > ? */ | |
| 650 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 1, 1, | |
| 651 /* @ A C D F H I K L M O */ | |
| 652 1, 1, 0, 1, 1, 0, 1, 0, 1, 1, 0, 1, 1, 1, 0, 1, | |
| 653 /* P S U V W X Z [ _ */ | |
| 654 1, 0, 0, 1, 0, 1, 1, 1, 1, 0, 1, 1, 0, 0, 0, 1, | |
| 655 /* a c d f h i k l m n o */ | |
| 656 0, 1, 0, 1, 1, 0, 1, 0, 1, 1, 0, 1, 1, 1, 1, 1, | |
| 657 /* p s u v w x z { | ~ */ | |
| 658 1, 0, 0, 1, 0, 1, 1, 1, 1, 0, 1, 1, 1, 0, 1 | |
| 659 }; | |
| 660 #endif | |
| 661 | |
| 4444 | 662 static int curchr; /* currently parsed character */ |
| 663 /* Previous character. Note: prevchr is sometimes -1 when we are not at the | |
| 664 * start, eg in /[ ^I]^ the pattern was never found even if it existed, | |
| 665 * because ^ was taken to be magic -- webb */ | |
| 666 static int prevchr; | |
| 667 static int prevprevchr; /* previous-previous character */ | |
| 668 static int nextchr; /* used for ungetchr() */ | |
| 7 | 669 |
| 670 /* arguments for reg() */ | |
| 671 #define REG_NOPAREN 0 /* toplevel reg() */ | |
| 672 #define REG_PAREN 1 /* \(\) */ | |
| 673 #define REG_ZPAREN 2 /* \z(\) */ | |
| 674 #define REG_NPAREN 3 /* \%(\) */ | |
| 675 | |
|
4679
4d92b873acef
updated for version 7.3.1087
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
676 typedef struct |
|
4d92b873acef
updated for version 7.3.1087
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
677 { |
|
4d92b873acef
updated for version 7.3.1087
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
678 char_u *regparse; |
|
4d92b873acef
updated for version 7.3.1087
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
679 int prevchr_len; |
|
4d92b873acef
updated for version 7.3.1087
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
680 int curchr; |
|
4d92b873acef
updated for version 7.3.1087
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
681 int prevchr; |
|
4d92b873acef
updated for version 7.3.1087
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
682 int prevprevchr; |
|
4d92b873acef
updated for version 7.3.1087
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
683 int nextchr; |
|
4d92b873acef
updated for version 7.3.1087
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
684 int at_start; |
|
4d92b873acef
updated for version 7.3.1087
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
685 int prev_at_start; |
|
4d92b873acef
updated for version 7.3.1087
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
686 int regnpar; |
|
4d92b873acef
updated for version 7.3.1087
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
687 } parse_state_T; |
|
4d92b873acef
updated for version 7.3.1087
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
688 |
| 7 | 689 /* |
| 690 * Forward declarations for vim_regcomp()'s friends. | |
| 691 */ | |
| 692 static void initchr __ARGS((char_u *)); | |
|
4679
4d92b873acef
updated for version 7.3.1087
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
693 static void save_parse_state __ARGS((parse_state_T *ps)); |
|
4d92b873acef
updated for version 7.3.1087
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
694 static void restore_parse_state __ARGS((parse_state_T *ps)); |
| 7 | 695 static int getchr __ARGS((void)); |
| 696 static void skipchr_keepstart __ARGS((void)); | |
| 697 static int peekchr __ARGS((void)); | |
| 698 static void skipchr __ARGS((void)); | |
| 699 static void ungetchr __ARGS((void)); | |
| 24 | 700 static int gethexchrs __ARGS((int maxinputlen)); |
| 701 static int getoctchrs __ARGS((void)); | |
| 702 static int getdecchrs __ARGS((void)); | |
| 703 static int coll_get_char __ARGS((void)); | |
| 7 | 704 static void regcomp_start __ARGS((char_u *expr, int flags)); |
| 705 static char_u *reg __ARGS((int, int *)); | |
| 706 static char_u *regbranch __ARGS((int *flagp)); | |
| 707 static char_u *regconcat __ARGS((int *flagp)); | |
| 708 static char_u *regpiece __ARGS((int *)); | |
| 709 static char_u *regatom __ARGS((int *)); | |
| 710 static char_u *regnode __ARGS((int)); | |
| 714 | 711 #ifdef FEAT_MBYTE |
| 712 static int use_multibytecode __ARGS((int c)); | |
| 713 #endif | |
| 7 | 714 static int prog_magic_wrong __ARGS((void)); |
| 715 static char_u *regnext __ARGS((char_u *)); | |
| 716 static void regc __ARGS((int b)); | |
| 717 #ifdef FEAT_MBYTE | |
| 718 static void regmbc __ARGS((int c)); | |
| 2974 | 719 # define REGMBC(x) regmbc(x); |
| 720 # define CASEMBC(x) case x: | |
| 167 | 721 #else |
| 722 # define regmbc(c) regc(c) | |
| 2974 | 723 # define REGMBC(x) |
| 724 # define CASEMBC(x) | |
| 7 | 725 #endif |
| 726 static void reginsert __ARGS((int, char_u *)); | |
|
4579
7a2be4a39423
updated for version 7.3.1037
Bram Moolenaar <bram@vim.org>
parents:
4505
diff
changeset
|
727 static void reginsert_nr __ARGS((int op, long val, char_u *opnd)); |
| 7 | 728 static void reginsert_limits __ARGS((int, long, long, char_u *)); |
| 729 static char_u *re_put_long __ARGS((char_u *pr, long_u val)); | |
| 730 static int read_limits __ARGS((long *, long *)); | |
| 731 static void regtail __ARGS((char_u *, char_u *)); | |
| 732 static void regoptail __ARGS((char_u *, char_u *)); | |
| 733 | |
| 4444 | 734 static regengine_T bt_regengine; |
| 735 static regengine_T nfa_regengine; | |
| 736 | |
| 7 | 737 /* |
| 738 * Return TRUE if compiled regular expression "prog" can match a line break. | |
| 739 */ | |
| 740 int | |
| 741 re_multiline(prog) | |
| 742 regprog_T *prog; | |
| 743 { | |
| 744 return (prog->regflags & RF_HASNL); | |
| 745 } | |
| 746 | |
| 747 /* | |
| 748 * Return TRUE if compiled regular expression "prog" looks before the start | |
| 749 * position (pattern contains "\@<=" or "\@<!"). | |
| 750 */ | |
| 751 int | |
| 752 re_lookbehind(prog) | |
| 753 regprog_T *prog; | |
| 754 { | |
| 755 return (prog->regflags & RF_LOOKBH); | |
| 756 } | |
| 757 | |
| 758 /* | |
| 167 | 759 * Check for an equivalence class name "[=a=]". "pp" points to the '['. |
| 760 * Returns a character representing the class. Zero means that no item was | |
| 761 * recognized. Otherwise "pp" is advanced to after the item. | |
| 762 */ | |
| 763 static int | |
| 764 get_equi_class(pp) | |
| 765 char_u **pp; | |
| 766 { | |
| 767 int c; | |
| 768 int l = 1; | |
| 769 char_u *p = *pp; | |
| 770 | |
| 771 if (p[1] == '=') | |
| 772 { | |
| 773 #ifdef FEAT_MBYTE | |
| 774 if (has_mbyte) | |
| 474 | 775 l = (*mb_ptr2len)(p + 2); |
| 167 | 776 #endif |
| 777 if (p[l + 2] == '=' && p[l + 3] == ']') | |
| 778 { | |
| 779 #ifdef FEAT_MBYTE | |
| 780 if (has_mbyte) | |
| 781 c = mb_ptr2char(p + 2); | |
| 782 else | |
| 783 #endif | |
| 784 c = p[2]; | |
| 785 *pp += l + 4; | |
| 786 return c; | |
| 787 } | |
| 788 } | |
| 789 return 0; | |
| 790 } | |
| 791 | |
|
2247
c40cd9aad546
Add patch to improve support of z/OS (OS/390). (Ralf Schandl)
Bram Moolenaar <bram@vim.org>
parents:
2173
diff
changeset
|
792 #ifdef EBCDIC |
|
c40cd9aad546
Add patch to improve support of z/OS (OS/390). (Ralf Schandl)
Bram Moolenaar <bram@vim.org>
parents:
2173
diff
changeset
|
793 /* |
|
c40cd9aad546
Add patch to improve support of z/OS (OS/390). (Ralf Schandl)
Bram Moolenaar <bram@vim.org>
parents:
2173
diff
changeset
|
794 * Table for equivalence class "c". (IBM-1047) |
|
c40cd9aad546
Add patch to improve support of z/OS (OS/390). (Ralf Schandl)
Bram Moolenaar <bram@vim.org>
parents:
2173
diff
changeset
|
795 */ |
|
c40cd9aad546
Add patch to improve support of z/OS (OS/390). (Ralf Schandl)
Bram Moolenaar <bram@vim.org>
parents:
2173
diff
changeset
|
796 char *EQUIVAL_CLASS_C[16] = { |
|
c40cd9aad546
Add patch to improve support of z/OS (OS/390). (Ralf Schandl)
Bram Moolenaar <bram@vim.org>
parents:
2173
diff
changeset
|
797 "A\x62\x63\x64\x65\x66\x67", |
|
c40cd9aad546
Add patch to improve support of z/OS (OS/390). (Ralf Schandl)
Bram Moolenaar <bram@vim.org>
parents:
2173
diff
changeset
|
798 "C\x68", |
|
c40cd9aad546
Add patch to improve support of z/OS (OS/390). (Ralf Schandl)
Bram Moolenaar <bram@vim.org>
parents:
2173
diff
changeset
|
799 "E\x71\x72\x73\x74", |
|
c40cd9aad546
Add patch to improve support of z/OS (OS/390). (Ralf Schandl)
Bram Moolenaar <bram@vim.org>
parents:
2173
diff
changeset
|
800 "I\x75\x76\x77\x78", |
|
c40cd9aad546
Add patch to improve support of z/OS (OS/390). (Ralf Schandl)
Bram Moolenaar <bram@vim.org>
parents:
2173
diff
changeset
|
801 "N\x69", |
|
c40cd9aad546
Add patch to improve support of z/OS (OS/390). (Ralf Schandl)
Bram Moolenaar <bram@vim.org>
parents:
2173
diff
changeset
|
802 "O\xEB\xEC\xED\xEE\xEF", |
|
c40cd9aad546
Add patch to improve support of z/OS (OS/390). (Ralf Schandl)
Bram Moolenaar <bram@vim.org>
parents:
2173
diff
changeset
|
803 "U\xFB\xFC\xFD\xFE", |
|
c40cd9aad546
Add patch to improve support of z/OS (OS/390). (Ralf Schandl)
Bram Moolenaar <bram@vim.org>
parents:
2173
diff
changeset
|
804 "Y\xBA", |
|
c40cd9aad546
Add patch to improve support of z/OS (OS/390). (Ralf Schandl)
Bram Moolenaar <bram@vim.org>
parents:
2173
diff
changeset
|
805 "a\x42\x43\x44\x45\x46\x47", |
|
c40cd9aad546
Add patch to improve support of z/OS (OS/390). (Ralf Schandl)
Bram Moolenaar <bram@vim.org>
parents:
2173
diff
changeset
|
806 "c\x48", |
|
c40cd9aad546
Add patch to improve support of z/OS (OS/390). (Ralf Schandl)
Bram Moolenaar <bram@vim.org>
parents:
2173
diff
changeset
|
807 "e\x51\x52\x53\x54", |
|
c40cd9aad546
Add patch to improve support of z/OS (OS/390). (Ralf Schandl)
Bram Moolenaar <bram@vim.org>
parents:
2173
diff
changeset
|
808 "i\x55\x56\x57\x58", |
|
c40cd9aad546
Add patch to improve support of z/OS (OS/390). (Ralf Schandl)
Bram Moolenaar <bram@vim.org>
parents:
2173
diff
changeset
|
809 "n\x49", |
|
c40cd9aad546
Add patch to improve support of z/OS (OS/390). (Ralf Schandl)
Bram Moolenaar <bram@vim.org>
parents:
2173
diff
changeset
|
810 "o\xCB\xCC\xCD\xCE\xCF", |
|
c40cd9aad546
Add patch to improve support of z/OS (OS/390). (Ralf Schandl)
Bram Moolenaar <bram@vim.org>
parents:
2173
diff
changeset
|
811 "u\xDB\xDC\xDD\xDE", |
|
c40cd9aad546
Add patch to improve support of z/OS (OS/390). (Ralf Schandl)
Bram Moolenaar <bram@vim.org>
parents:
2173
diff
changeset
|
812 "y\x8D\xDF", |
|
c40cd9aad546
Add patch to improve support of z/OS (OS/390). (Ralf Schandl)
Bram Moolenaar <bram@vim.org>
parents:
2173
diff
changeset
|
813 }; |
|
c40cd9aad546
Add patch to improve support of z/OS (OS/390). (Ralf Schandl)
Bram Moolenaar <bram@vim.org>
parents:
2173
diff
changeset
|
814 #endif |
|
c40cd9aad546
Add patch to improve support of z/OS (OS/390). (Ralf Schandl)
Bram Moolenaar <bram@vim.org>
parents:
2173
diff
changeset
|
815 |
| 167 | 816 /* |
| 817 * Produce the bytes for equivalence class "c". | |
| 818 * Currently only handles latin1, latin9 and utf-8. | |
| 4444 | 819 * NOTE: When changing this function, also change nfa_emit_equi_class() |
| 167 | 820 */ |
| 821 static void | |
| 822 reg_equi_class(c) | |
| 823 int c; | |
| 824 { | |
| 825 #ifdef FEAT_MBYTE | |
| 826 if (enc_utf8 || STRCMP(p_enc, "latin1") == 0 | |
| 492 | 827 || STRCMP(p_enc, "iso-8859-15") == 0) |
| 167 | 828 #endif |
| 829 { | |
|
2247
c40cd9aad546
Add patch to improve support of z/OS (OS/390). (Ralf Schandl)
Bram Moolenaar <bram@vim.org>
parents:
2173
diff
changeset
|
830 #ifdef EBCDIC |
|
c40cd9aad546
Add patch to improve support of z/OS (OS/390). (Ralf Schandl)
Bram Moolenaar <bram@vim.org>
parents:
2173
diff
changeset
|
831 int i; |
|
c40cd9aad546
Add patch to improve support of z/OS (OS/390). (Ralf Schandl)
Bram Moolenaar <bram@vim.org>
parents:
2173
diff
changeset
|
832 |
|
c40cd9aad546
Add patch to improve support of z/OS (OS/390). (Ralf Schandl)
Bram Moolenaar <bram@vim.org>
parents:
2173
diff
changeset
|
833 /* This might be slower than switch/case below. */ |
|
c40cd9aad546
Add patch to improve support of z/OS (OS/390). (Ralf Schandl)
Bram Moolenaar <bram@vim.org>
parents:
2173
diff
changeset
|
834 for (i = 0; i < 16; i++) |
|
c40cd9aad546
Add patch to improve support of z/OS (OS/390). (Ralf Schandl)
Bram Moolenaar <bram@vim.org>
parents:
2173
diff
changeset
|
835 { |
|
c40cd9aad546
Add patch to improve support of z/OS (OS/390). (Ralf Schandl)
Bram Moolenaar <bram@vim.org>
parents:
2173
diff
changeset
|
836 if (vim_strchr(EQUIVAL_CLASS_C[i], c) != NULL) |
|
c40cd9aad546
Add patch to improve support of z/OS (OS/390). (Ralf Schandl)
Bram Moolenaar <bram@vim.org>
parents:
2173
diff
changeset
|
837 { |
|
c40cd9aad546
Add patch to improve support of z/OS (OS/390). (Ralf Schandl)
Bram Moolenaar <bram@vim.org>
parents:
2173
diff
changeset
|
838 char *p = EQUIVAL_CLASS_C[i]; |
|
c40cd9aad546
Add patch to improve support of z/OS (OS/390). (Ralf Schandl)
Bram Moolenaar <bram@vim.org>
parents:
2173
diff
changeset
|
839 |
|
c40cd9aad546
Add patch to improve support of z/OS (OS/390). (Ralf Schandl)
Bram Moolenaar <bram@vim.org>
parents:
2173
diff
changeset
|
840 while (*p != 0) |
|
c40cd9aad546
Add patch to improve support of z/OS (OS/390). (Ralf Schandl)
Bram Moolenaar <bram@vim.org>
parents:
2173
diff
changeset
|
841 regmbc(*p++); |
|
c40cd9aad546
Add patch to improve support of z/OS (OS/390). (Ralf Schandl)
Bram Moolenaar <bram@vim.org>
parents:
2173
diff
changeset
|
842 return; |
|
c40cd9aad546
Add patch to improve support of z/OS (OS/390). (Ralf Schandl)
Bram Moolenaar <bram@vim.org>
parents:
2173
diff
changeset
|
843 } |
|
c40cd9aad546
Add patch to improve support of z/OS (OS/390). (Ralf Schandl)
Bram Moolenaar <bram@vim.org>
parents:
2173
diff
changeset
|
844 } |
|
c40cd9aad546
Add patch to improve support of z/OS (OS/390). (Ralf Schandl)
Bram Moolenaar <bram@vim.org>
parents:
2173
diff
changeset
|
845 #else |
| 167 | 846 switch (c) |
| 847 { | |
| 6765 | 848 /* Do not use '\300' style, it results in a negative number. */ |
| 849 case 'A': case 0xc0: case 0xc1: case 0xc2: | |
| 850 case 0xc3: case 0xc4: case 0xc5: | |
| 2974 | 851 CASEMBC(0x100) CASEMBC(0x102) CASEMBC(0x104) CASEMBC(0x1cd) |
| 852 CASEMBC(0x1de) CASEMBC(0x1e0) CASEMBC(0x1ea2) | |
| 6765 | 853 regmbc('A'); regmbc(0xc0); regmbc(0xc1); |
| 854 regmbc(0xc2); regmbc(0xc3); regmbc(0xc4); | |
| 855 regmbc(0xc5); | |
| 2974 | 856 REGMBC(0x100) REGMBC(0x102) REGMBC(0x104) |
| 857 REGMBC(0x1cd) REGMBC(0x1de) REGMBC(0x1e0) | |
| 858 REGMBC(0x1ea2) | |
| 859 return; | |
| 860 case 'B': CASEMBC(0x1e02) CASEMBC(0x1e06) | |
| 861 regmbc('B'); REGMBC(0x1e02) REGMBC(0x1e06) | |
| 167 | 862 return; |
| 6765 | 863 case 'C': case 0xc7: |
| 2974 | 864 CASEMBC(0x106) CASEMBC(0x108) CASEMBC(0x10a) CASEMBC(0x10c) |
| 6765 | 865 regmbc('C'); regmbc(0xc7); |
| 2974 | 866 REGMBC(0x106) REGMBC(0x108) REGMBC(0x10a) |
| 867 REGMBC(0x10c) | |
| 868 return; | |
| 869 case 'D': CASEMBC(0x10e) CASEMBC(0x110) CASEMBC(0x1e0a) | |
| 870 CASEMBC(0x1e0e) CASEMBC(0x1e10) | |
| 871 regmbc('D'); REGMBC(0x10e) REGMBC(0x110) | |
| 872 REGMBC(0x1e0a) REGMBC(0x1e0e) REGMBC(0x1e10) | |
| 167 | 873 return; |
| 6765 | 874 case 'E': case 0xc8: case 0xc9: case 0xca: case 0xcb: |
| 2974 | 875 CASEMBC(0x112) CASEMBC(0x114) CASEMBC(0x116) CASEMBC(0x118) |
| 876 CASEMBC(0x11a) CASEMBC(0x1eba) CASEMBC(0x1ebc) | |
| 6765 | 877 regmbc('E'); regmbc(0xc8); regmbc(0xc9); |
| 878 regmbc(0xca); regmbc(0xcb); | |
| 2974 | 879 REGMBC(0x112) REGMBC(0x114) REGMBC(0x116) |
| 880 REGMBC(0x118) REGMBC(0x11a) REGMBC(0x1eba) | |
| 881 REGMBC(0x1ebc) | |
| 882 return; | |
| 883 case 'F': CASEMBC(0x1e1e) | |
| 884 regmbc('F'); REGMBC(0x1e1e) | |
| 885 return; | |
| 886 case 'G': CASEMBC(0x11c) CASEMBC(0x11e) CASEMBC(0x120) | |
| 887 CASEMBC(0x122) CASEMBC(0x1e4) CASEMBC(0x1e6) CASEMBC(0x1f4) | |
| 888 CASEMBC(0x1e20) | |
| 889 regmbc('G'); REGMBC(0x11c) REGMBC(0x11e) | |
| 890 REGMBC(0x120) REGMBC(0x122) REGMBC(0x1e4) | |
| 891 REGMBC(0x1e6) REGMBC(0x1f4) REGMBC(0x1e20) | |
| 892 return; | |
| 893 case 'H': CASEMBC(0x124) CASEMBC(0x126) CASEMBC(0x1e22) | |
| 894 CASEMBC(0x1e26) CASEMBC(0x1e28) | |
| 895 regmbc('H'); REGMBC(0x124) REGMBC(0x126) | |
| 896 REGMBC(0x1e22) REGMBC(0x1e26) REGMBC(0x1e28) | |
| 167 | 897 return; |
| 6765 | 898 case 'I': case 0xcc: case 0xcd: case 0xce: case 0xcf: |
| 2974 | 899 CASEMBC(0x128) CASEMBC(0x12a) CASEMBC(0x12c) CASEMBC(0x12e) |
| 900 CASEMBC(0x130) CASEMBC(0x1cf) CASEMBC(0x1ec8) | |
| 6765 | 901 regmbc('I'); regmbc(0xcc); regmbc(0xcd); |
| 902 regmbc(0xce); regmbc(0xcf); | |
| 2974 | 903 REGMBC(0x128) REGMBC(0x12a) REGMBC(0x12c) |
| 904 REGMBC(0x12e) REGMBC(0x130) REGMBC(0x1cf) | |
| 905 REGMBC(0x1ec8) | |
| 906 return; | |
| 907 case 'J': CASEMBC(0x134) | |
| 908 regmbc('J'); REGMBC(0x134) | |
| 909 return; | |
| 910 case 'K': CASEMBC(0x136) CASEMBC(0x1e8) CASEMBC(0x1e30) | |
| 911 CASEMBC(0x1e34) | |
| 912 regmbc('K'); REGMBC(0x136) REGMBC(0x1e8) | |
| 913 REGMBC(0x1e30) REGMBC(0x1e34) | |
| 914 return; | |
| 915 case 'L': CASEMBC(0x139) CASEMBC(0x13b) CASEMBC(0x13d) | |
| 916 CASEMBC(0x13f) CASEMBC(0x141) CASEMBC(0x1e3a) | |
| 917 regmbc('L'); REGMBC(0x139) REGMBC(0x13b) | |
| 918 REGMBC(0x13d) REGMBC(0x13f) REGMBC(0x141) | |
| 919 REGMBC(0x1e3a) | |
| 920 return; | |
| 921 case 'M': CASEMBC(0x1e3e) CASEMBC(0x1e40) | |
| 922 regmbc('M'); REGMBC(0x1e3e) REGMBC(0x1e40) | |
| 167 | 923 return; |
| 6765 | 924 case 'N': case 0xd1: |
| 2974 | 925 CASEMBC(0x143) CASEMBC(0x145) CASEMBC(0x147) CASEMBC(0x1e44) |
| 926 CASEMBC(0x1e48) | |
| 6765 | 927 regmbc('N'); regmbc(0xd1); |
| 2974 | 928 REGMBC(0x143) REGMBC(0x145) REGMBC(0x147) |
| 929 REGMBC(0x1e44) REGMBC(0x1e48) | |
| 167 | 930 return; |
| 6765 | 931 case 'O': case 0xd2: case 0xd3: case 0xd4: case 0xd5: |
| 932 case 0xd6: case 0xd8: | |
| 2974 | 933 CASEMBC(0x14c) CASEMBC(0x14e) CASEMBC(0x150) CASEMBC(0x1a0) |
| 934 CASEMBC(0x1d1) CASEMBC(0x1ea) CASEMBC(0x1ec) CASEMBC(0x1ece) | |
| 6765 | 935 regmbc('O'); regmbc(0xd2); regmbc(0xd3); |
| 936 regmbc(0xd4); regmbc(0xd5); regmbc(0xd6); | |
| 937 regmbc(0xd8); | |
| 2974 | 938 REGMBC(0x14c) REGMBC(0x14e) REGMBC(0x150) |
| 939 REGMBC(0x1a0) REGMBC(0x1d1) REGMBC(0x1ea) | |
| 940 REGMBC(0x1ec) REGMBC(0x1ece) | |
| 941 return; | |
| 942 case 'P': case 0x1e54: case 0x1e56: | |
| 943 regmbc('P'); REGMBC(0x1e54) REGMBC(0x1e56) | |
| 944 return; | |
| 945 case 'R': CASEMBC(0x154) CASEMBC(0x156) CASEMBC(0x158) | |
| 946 CASEMBC(0x1e58) CASEMBC(0x1e5e) | |
| 947 regmbc('R'); REGMBC(0x154) REGMBC(0x156) REGMBC(0x158) | |
| 948 REGMBC(0x1e58) REGMBC(0x1e5e) | |
| 949 return; | |
| 950 case 'S': CASEMBC(0x15a) CASEMBC(0x15c) CASEMBC(0x15e) | |
| 951 CASEMBC(0x160) CASEMBC(0x1e60) | |
| 952 regmbc('S'); REGMBC(0x15a) REGMBC(0x15c) | |
| 953 REGMBC(0x15e) REGMBC(0x160) REGMBC(0x1e60) | |
| 954 return; | |
| 955 case 'T': CASEMBC(0x162) CASEMBC(0x164) CASEMBC(0x166) | |
| 956 CASEMBC(0x1e6a) CASEMBC(0x1e6e) | |
| 957 regmbc('T'); REGMBC(0x162) REGMBC(0x164) | |
| 958 REGMBC(0x166) REGMBC(0x1e6a) REGMBC(0x1e6e) | |
| 167 | 959 return; |
| 6765 | 960 case 'U': case 0xd9: case 0xda: case 0xdb: case 0xdc: |
| 2974 | 961 CASEMBC(0x168) CASEMBC(0x16a) CASEMBC(0x16c) CASEMBC(0x16e) |
| 962 CASEMBC(0x170) CASEMBC(0x172) CASEMBC(0x1af) CASEMBC(0x1d3) | |
| 963 CASEMBC(0x1ee6) | |
| 6765 | 964 regmbc('U'); regmbc(0xd9); regmbc(0xda); |
| 965 regmbc(0xdb); regmbc(0xdc); | |
| 2974 | 966 REGMBC(0x168) REGMBC(0x16a) REGMBC(0x16c) |
| 967 REGMBC(0x16e) REGMBC(0x170) REGMBC(0x172) | |
| 968 REGMBC(0x1af) REGMBC(0x1d3) REGMBC(0x1ee6) | |
| 969 return; | |
| 970 case 'V': CASEMBC(0x1e7c) | |
| 971 regmbc('V'); REGMBC(0x1e7c) | |
| 972 return; | |
| 973 case 'W': CASEMBC(0x174) CASEMBC(0x1e80) CASEMBC(0x1e82) | |
| 974 CASEMBC(0x1e84) CASEMBC(0x1e86) | |
| 975 regmbc('W'); REGMBC(0x174) REGMBC(0x1e80) | |
| 976 REGMBC(0x1e82) REGMBC(0x1e84) REGMBC(0x1e86) | |
| 977 return; | |
| 978 case 'X': CASEMBC(0x1e8a) CASEMBC(0x1e8c) | |
| 979 regmbc('X'); REGMBC(0x1e8a) REGMBC(0x1e8c) | |
| 167 | 980 return; |
| 6765 | 981 case 'Y': case 0xdd: |
| 2974 | 982 CASEMBC(0x176) CASEMBC(0x178) CASEMBC(0x1e8e) CASEMBC(0x1ef2) |
| 983 CASEMBC(0x1ef6) CASEMBC(0x1ef8) | |
| 6765 | 984 regmbc('Y'); regmbc(0xdd); |
| 2974 | 985 REGMBC(0x176) REGMBC(0x178) REGMBC(0x1e8e) |
| 986 REGMBC(0x1ef2) REGMBC(0x1ef6) REGMBC(0x1ef8) | |
| 987 return; | |
| 988 case 'Z': CASEMBC(0x179) CASEMBC(0x17b) CASEMBC(0x17d) | |
| 989 CASEMBC(0x1b5) CASEMBC(0x1e90) CASEMBC(0x1e94) | |
| 990 regmbc('Z'); REGMBC(0x179) REGMBC(0x17b) | |
| 991 REGMBC(0x17d) REGMBC(0x1b5) REGMBC(0x1e90) | |
| 992 REGMBC(0x1e94) | |
| 167 | 993 return; |
| 6765 | 994 case 'a': case 0xe0: case 0xe1: case 0xe2: |
| 995 case 0xe3: case 0xe4: case 0xe5: | |
| 2974 | 996 CASEMBC(0x101) CASEMBC(0x103) CASEMBC(0x105) CASEMBC(0x1ce) |
| 997 CASEMBC(0x1df) CASEMBC(0x1e1) CASEMBC(0x1ea3) | |
| 6765 | 998 regmbc('a'); regmbc(0xe0); regmbc(0xe1); |
| 999 regmbc(0xe2); regmbc(0xe3); regmbc(0xe4); | |
| 1000 regmbc(0xe5); | |
| 2974 | 1001 REGMBC(0x101) REGMBC(0x103) REGMBC(0x105) |
| 1002 REGMBC(0x1ce) REGMBC(0x1df) REGMBC(0x1e1) | |
| 1003 REGMBC(0x1ea3) | |
| 1004 return; | |
| 1005 case 'b': CASEMBC(0x1e03) CASEMBC(0x1e07) | |
| 1006 regmbc('b'); REGMBC(0x1e03) REGMBC(0x1e07) | |
| 167 | 1007 return; |
| 6765 | 1008 case 'c': case 0xe7: |
| 2974 | 1009 CASEMBC(0x107) CASEMBC(0x109) CASEMBC(0x10b) CASEMBC(0x10d) |
| 6765 | 1010 regmbc('c'); regmbc(0xe7); |
| 2974 | 1011 REGMBC(0x107) REGMBC(0x109) REGMBC(0x10b) |
| 1012 REGMBC(0x10d) | |
| 1013 return; | |
| 1014 case 'd': CASEMBC(0x10f) CASEMBC(0x111) CASEMBC(0x1d0b) | |
| 1015 CASEMBC(0x1e11) | |
| 1016 regmbc('d'); REGMBC(0x10f) REGMBC(0x111) | |
| 1017 REGMBC(0x1e0b) REGMBC(0x01e0f) REGMBC(0x1e11) | |
| 167 | 1018 return; |
| 6765 | 1019 case 'e': case 0xe8: case 0xe9: case 0xea: case 0xeb: |
| 2974 | 1020 CASEMBC(0x113) CASEMBC(0x115) CASEMBC(0x117) CASEMBC(0x119) |
| 1021 CASEMBC(0x11b) CASEMBC(0x1ebb) CASEMBC(0x1ebd) | |
| 6765 | 1022 regmbc('e'); regmbc(0xe8); regmbc(0xe9); |
| 1023 regmbc(0xea); regmbc(0xeb); | |
| 2974 | 1024 REGMBC(0x113) REGMBC(0x115) REGMBC(0x117) |
| 1025 REGMBC(0x119) REGMBC(0x11b) REGMBC(0x1ebb) | |
| 1026 REGMBC(0x1ebd) | |
| 1027 return; | |
| 1028 case 'f': CASEMBC(0x1e1f) | |
| 1029 regmbc('f'); REGMBC(0x1e1f) | |
| 1030 return; | |
| 1031 case 'g': CASEMBC(0x11d) CASEMBC(0x11f) CASEMBC(0x121) | |
| 1032 CASEMBC(0x123) CASEMBC(0x1e5) CASEMBC(0x1e7) CASEMBC(0x1f5) | |
| 1033 CASEMBC(0x1e21) | |
| 1034 regmbc('g'); REGMBC(0x11d) REGMBC(0x11f) | |
| 1035 REGMBC(0x121) REGMBC(0x123) REGMBC(0x1e5) | |
| 1036 REGMBC(0x1e7) REGMBC(0x1f5) REGMBC(0x1e21) | |
| 1037 return; | |
| 1038 case 'h': CASEMBC(0x125) CASEMBC(0x127) CASEMBC(0x1e23) | |
| 1039 CASEMBC(0x1e27) CASEMBC(0x1e29) CASEMBC(0x1e96) | |
| 1040 regmbc('h'); REGMBC(0x125) REGMBC(0x127) | |
| 1041 REGMBC(0x1e23) REGMBC(0x1e27) REGMBC(0x1e29) | |
| 1042 REGMBC(0x1e96) | |
| 167 | 1043 return; |
| 6765 | 1044 case 'i': case 0xec: case 0xed: case 0xee: case 0xef: |
| 2974 | 1045 CASEMBC(0x129) CASEMBC(0x12b) CASEMBC(0x12d) CASEMBC(0x12f) |
| 1046 CASEMBC(0x1d0) CASEMBC(0x1ec9) | |
| 6765 | 1047 regmbc('i'); regmbc(0xec); regmbc(0xed); |
| 1048 regmbc(0xee); regmbc(0xef); | |
| 2974 | 1049 REGMBC(0x129) REGMBC(0x12b) REGMBC(0x12d) |
| 1050 REGMBC(0x12f) REGMBC(0x1d0) REGMBC(0x1ec9) | |
| 1051 return; | |
| 1052 case 'j': CASEMBC(0x135) CASEMBC(0x1f0) | |
| 1053 regmbc('j'); REGMBC(0x135) REGMBC(0x1f0) | |
| 1054 return; | |
| 1055 case 'k': CASEMBC(0x137) CASEMBC(0x1e9) CASEMBC(0x1e31) | |
| 1056 CASEMBC(0x1e35) | |
| 1057 regmbc('k'); REGMBC(0x137) REGMBC(0x1e9) | |
| 1058 REGMBC(0x1e31) REGMBC(0x1e35) | |
| 1059 return; | |
| 1060 case 'l': CASEMBC(0x13a) CASEMBC(0x13c) CASEMBC(0x13e) | |
| 1061 CASEMBC(0x140) CASEMBC(0x142) CASEMBC(0x1e3b) | |
| 1062 regmbc('l'); REGMBC(0x13a) REGMBC(0x13c) | |
| 1063 REGMBC(0x13e) REGMBC(0x140) REGMBC(0x142) | |
| 1064 REGMBC(0x1e3b) | |
| 1065 return; | |
| 1066 case 'm': CASEMBC(0x1e3f) CASEMBC(0x1e41) | |
| 1067 regmbc('m'); REGMBC(0x1e3f) REGMBC(0x1e41) | |
| 167 | 1068 return; |
| 6765 | 1069 case 'n': case 0xf1: |
| 2974 | 1070 CASEMBC(0x144) CASEMBC(0x146) CASEMBC(0x148) CASEMBC(0x149) |
| 1071 CASEMBC(0x1e45) CASEMBC(0x1e49) | |
| 6765 | 1072 regmbc('n'); regmbc(0xf1); |
| 2974 | 1073 REGMBC(0x144) REGMBC(0x146) REGMBC(0x148) |
| 1074 REGMBC(0x149) REGMBC(0x1e45) REGMBC(0x1e49) | |
| 167 | 1075 return; |
| 6765 | 1076 case 'o': case 0xf2: case 0xf3: case 0xf4: case 0xf5: |
| 1077 case 0xf6: case 0xf8: | |
| 2974 | 1078 CASEMBC(0x14d) CASEMBC(0x14f) CASEMBC(0x151) CASEMBC(0x1a1) |
| 1079 CASEMBC(0x1d2) CASEMBC(0x1eb) CASEMBC(0x1ed) CASEMBC(0x1ecf) | |
| 6765 | 1080 regmbc('o'); regmbc(0xf2); regmbc(0xf3); |
| 1081 regmbc(0xf4); regmbc(0xf5); regmbc(0xf6); | |
| 1082 regmbc(0xf8); | |
| 2974 | 1083 REGMBC(0x14d) REGMBC(0x14f) REGMBC(0x151) |
| 1084 REGMBC(0x1a1) REGMBC(0x1d2) REGMBC(0x1eb) | |
| 1085 REGMBC(0x1ed) REGMBC(0x1ecf) | |
| 1086 return; | |
| 1087 case 'p': CASEMBC(0x1e55) CASEMBC(0x1e57) | |
| 1088 regmbc('p'); REGMBC(0x1e55) REGMBC(0x1e57) | |
| 1089 return; | |
| 1090 case 'r': CASEMBC(0x155) CASEMBC(0x157) CASEMBC(0x159) | |
| 1091 CASEMBC(0x1e59) CASEMBC(0x1e5f) | |
| 1092 regmbc('r'); REGMBC(0x155) REGMBC(0x157) REGMBC(0x159) | |
| 1093 REGMBC(0x1e59) REGMBC(0x1e5f) | |
| 1094 return; | |
| 1095 case 's': CASEMBC(0x15b) CASEMBC(0x15d) CASEMBC(0x15f) | |
| 1096 CASEMBC(0x161) CASEMBC(0x1e61) | |
| 1097 regmbc('s'); REGMBC(0x15b) REGMBC(0x15d) | |
| 1098 REGMBC(0x15f) REGMBC(0x161) REGMBC(0x1e61) | |
| 1099 return; | |
| 1100 case 't': CASEMBC(0x163) CASEMBC(0x165) CASEMBC(0x167) | |
| 1101 CASEMBC(0x1e6b) CASEMBC(0x1e6f) CASEMBC(0x1e97) | |
| 1102 regmbc('t'); REGMBC(0x163) REGMBC(0x165) REGMBC(0x167) | |
| 1103 REGMBC(0x1e6b) REGMBC(0x1e6f) REGMBC(0x1e97) | |
| 167 | 1104 return; |
| 6765 | 1105 case 'u': case 0xf9: case 0xfa: case 0xfb: case 0xfc: |
| 2974 | 1106 CASEMBC(0x169) CASEMBC(0x16b) CASEMBC(0x16d) CASEMBC(0x16f) |
| 1107 CASEMBC(0x171) CASEMBC(0x173) CASEMBC(0x1b0) CASEMBC(0x1d4) | |
| 1108 CASEMBC(0x1ee7) | |
| 6765 | 1109 regmbc('u'); regmbc(0xf9); regmbc(0xfa); |
| 1110 regmbc(0xfb); regmbc(0xfc); | |
| 2974 | 1111 REGMBC(0x169) REGMBC(0x16b) REGMBC(0x16d) |
| 1112 REGMBC(0x16f) REGMBC(0x171) REGMBC(0x173) | |
| 1113 REGMBC(0x1b0) REGMBC(0x1d4) REGMBC(0x1ee7) | |
| 1114 return; | |
| 1115 case 'v': CASEMBC(0x1e7d) | |
| 1116 regmbc('v'); REGMBC(0x1e7d) | |
| 1117 return; | |
| 1118 case 'w': CASEMBC(0x175) CASEMBC(0x1e81) CASEMBC(0x1e83) | |
| 1119 CASEMBC(0x1e85) CASEMBC(0x1e87) CASEMBC(0x1e98) | |
| 1120 regmbc('w'); REGMBC(0x175) REGMBC(0x1e81) | |
| 1121 REGMBC(0x1e83) REGMBC(0x1e85) REGMBC(0x1e87) | |
| 1122 REGMBC(0x1e98) | |
| 1123 return; | |
| 1124 case 'x': CASEMBC(0x1e8b) CASEMBC(0x1e8d) | |
| 1125 regmbc('x'); REGMBC(0x1e8b) REGMBC(0x1e8d) | |
| 167 | 1126 return; |
| 6765 | 1127 case 'y': case 0xfd: case 0xff: |
| 2974 | 1128 CASEMBC(0x177) CASEMBC(0x1e8f) CASEMBC(0x1e99) |
| 1129 CASEMBC(0x1ef3) CASEMBC(0x1ef7) CASEMBC(0x1ef9) | |
| 6765 | 1130 regmbc('y'); regmbc(0xfd); regmbc(0xff); |
| 2974 | 1131 REGMBC(0x177) REGMBC(0x1e8f) REGMBC(0x1e99) |
| 1132 REGMBC(0x1ef3) REGMBC(0x1ef7) REGMBC(0x1ef9) | |
| 1133 return; | |
| 1134 case 'z': CASEMBC(0x17a) CASEMBC(0x17c) CASEMBC(0x17e) | |
| 1135 CASEMBC(0x1b6) CASEMBC(0x1e91) CASEMBC(0x1e95) | |
| 1136 regmbc('z'); REGMBC(0x17a) REGMBC(0x17c) | |
| 1137 REGMBC(0x17e) REGMBC(0x1b6) REGMBC(0x1e91) | |
| 1138 REGMBC(0x1e95) | |
| 167 | 1139 return; |
| 1140 } | |
|
2247
c40cd9aad546
Add patch to improve support of z/OS (OS/390). (Ralf Schandl)
Bram Moolenaar <bram@vim.org>
parents:
2173
diff
changeset
|
1141 #endif |
| 167 | 1142 } |
| 1143 regmbc(c); | |
| 1144 } | |
| 1145 | |
| 1146 /* | |
| 1147 * Check for a collating element "[.a.]". "pp" points to the '['. | |
| 1148 * Returns a character. Zero means that no item was recognized. Otherwise | |
| 1149 * "pp" is advanced to after the item. | |
| 1150 * Currently only single characters are recognized! | |
| 1151 */ | |
| 1152 static int | |
| 1153 get_coll_element(pp) | |
| 1154 char_u **pp; | |
| 1155 { | |
| 1156 int c; | |
| 1157 int l = 1; | |
| 1158 char_u *p = *pp; | |
| 1159 | |
| 1160 if (p[1] == '.') | |
| 1161 { | |
| 1162 #ifdef FEAT_MBYTE | |
| 1163 if (has_mbyte) | |
| 474 | 1164 l = (*mb_ptr2len)(p + 2); |
| 167 | 1165 #endif |
| 1166 if (p[l + 2] == '.' && p[l + 3] == ']') | |
| 1167 { | |
| 1168 #ifdef FEAT_MBYTE | |
| 1169 if (has_mbyte) | |
| 1170 c = mb_ptr2char(p + 2); | |
| 1171 else | |
| 1172 #endif | |
| 1173 c = p[2]; | |
| 1174 *pp += l + 4; | |
| 1175 return c; | |
| 1176 } | |
| 1177 } | |
| 1178 return 0; | |
| 1179 } | |
| 1180 | |
|
4744
a62695305e03
updated for version 7.3.1119
Bram Moolenaar <bram@vim.org>
parents:
4732
diff
changeset
|
1181 static void get_cpo_flags __ARGS((void)); |
|
a62695305e03
updated for version 7.3.1119
Bram Moolenaar <bram@vim.org>
parents:
4732
diff
changeset
|
1182 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
|
1183 static int reg_cpo_bsl; /* 'cpoptions' contains '\' flag */ |
|
a62695305e03
updated for version 7.3.1119
Bram Moolenaar <bram@vim.org>
parents:
4732
diff
changeset
|
1184 |
|
a62695305e03
updated for version 7.3.1119
Bram Moolenaar <bram@vim.org>
parents:
4732
diff
changeset
|
1185 static void |
|
a62695305e03
updated for version 7.3.1119
Bram Moolenaar <bram@vim.org>
parents:
4732
diff
changeset
|
1186 get_cpo_flags() |
|
a62695305e03
updated for version 7.3.1119
Bram Moolenaar <bram@vim.org>
parents:
4732
diff
changeset
|
1187 { |
|
a62695305e03
updated for version 7.3.1119
Bram Moolenaar <bram@vim.org>
parents:
4732
diff
changeset
|
1188 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
|
1189 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
|
1190 } |
| 167 | 1191 |
| 1192 /* | |
| 1193 * Skip over a "[]" range. | |
| 1194 * "p" must point to the character after the '['. | |
| 1195 * The returned pointer is on the matching ']', or the terminating NUL. | |
| 1196 */ | |
| 1197 static char_u * | |
| 1198 skip_anyof(p) | |
| 1199 char_u *p; | |
| 1200 { | |
| 1201 #ifdef FEAT_MBYTE | |
| 1202 int l; | |
| 1203 #endif | |
| 1204 | |
| 1205 if (*p == '^') /* Complement of range. */ | |
| 1206 ++p; | |
| 1207 if (*p == ']' || *p == '-') | |
| 1208 ++p; | |
| 1209 while (*p != NUL && *p != ']') | |
| 1210 { | |
| 1211 #ifdef FEAT_MBYTE | |
| 474 | 1212 if (has_mbyte && (l = (*mb_ptr2len)(p)) > 1) |
| 167 | 1213 p += l; |
| 1214 else | |
| 1215 #endif | |
| 1216 if (*p == '-') | |
| 1217 { | |
| 1218 ++p; | |
| 1219 if (*p != ']' && *p != NUL) | |
| 1220 mb_ptr_adv(p); | |
| 1221 } | |
| 1222 else if (*p == '\\' | |
|
4744
a62695305e03
updated for version 7.3.1119
Bram Moolenaar <bram@vim.org>
parents:
4732
diff
changeset
|
1223 && !reg_cpo_bsl |
| 167 | 1224 && (vim_strchr(REGEXP_INRANGE, p[1]) != NULL |
|
4744
a62695305e03
updated for version 7.3.1119
Bram Moolenaar <bram@vim.org>
parents:
4732
diff
changeset
|
1225 || (!reg_cpo_lit && vim_strchr(REGEXP_ABBR, p[1]) != NULL))) |
| 167 | 1226 p += 2; |
| 1227 else if (*p == '[') | |
| 1228 { | |
| 1229 if (get_char_class(&p) == CLASS_NONE | |
| 1230 && get_equi_class(&p) == 0 | |
| 1231 && get_coll_element(&p) == 0) | |
| 1232 ++p; /* It was not a class name */ | |
| 1233 } | |
| 1234 else | |
| 1235 ++p; | |
| 1236 } | |
| 1237 | |
| 1238 return p; | |
| 1239 } | |
| 1240 | |
| 1241 /* | |
| 7 | 1242 * Skip past regular expression. |
| 153 | 1243 * Stop at end of "startp" or where "dirc" is found ('/', '?', etc). |
| 7 | 1244 * Take care of characters with a backslash in front of it. |
| 1245 * Skip strings inside [ and ]. | |
| 1246 * When "newp" is not NULL and "dirc" is '?', make an allocated copy of the | |
| 1247 * expression and change "\?" to "?". If "*newp" is not NULL the expression | |
| 1248 * is changed in-place. | |
| 1249 */ | |
| 1250 char_u * | |
| 1251 skip_regexp(startp, dirc, magic, newp) | |
| 1252 char_u *startp; | |
| 1253 int dirc; | |
| 1254 int magic; | |
| 1255 char_u **newp; | |
| 1256 { | |
| 1257 int mymagic; | |
| 1258 char_u *p = startp; | |
| 1259 | |
| 1260 if (magic) | |
| 1261 mymagic = MAGIC_ON; | |
| 1262 else | |
| 1263 mymagic = MAGIC_OFF; | |
|
4744
a62695305e03
updated for version 7.3.1119
Bram Moolenaar <bram@vim.org>
parents:
4732
diff
changeset
|
1264 get_cpo_flags(); |
| 7 | 1265 |
| 39 | 1266 for (; p[0] != NUL; mb_ptr_adv(p)) |
| 7 | 1267 { |
| 1268 if (p[0] == dirc) /* found end of regexp */ | |
| 1269 break; | |
| 1270 if ((p[0] == '[' && mymagic >= MAGIC_ON) | |
| 1271 || (p[0] == '\\' && p[1] == '[' && mymagic <= MAGIC_OFF)) | |
| 1272 { | |
| 1273 p = skip_anyof(p + 1); | |
| 1274 if (p[0] == NUL) | |
| 1275 break; | |
| 1276 } | |
| 1277 else if (p[0] == '\\' && p[1] != NUL) | |
| 1278 { | |
| 1279 if (dirc == '?' && newp != NULL && p[1] == '?') | |
| 1280 { | |
| 1281 /* change "\?" to "?", make a copy first. */ | |
| 1282 if (*newp == NULL) | |
| 1283 { | |
| 1284 *newp = vim_strsave(startp); | |
| 1285 if (*newp != NULL) | |
| 1286 p = *newp + (p - startp); | |
| 1287 } | |
| 1288 if (*newp != NULL) | |
| 1621 | 1289 STRMOVE(p, p + 1); |
| 7 | 1290 else |
| 1291 ++p; | |
| 1292 } | |
| 1293 else | |
| 1294 ++p; /* skip next character */ | |
| 1295 if (*p == 'v') | |
| 1296 mymagic = MAGIC_ALL; | |
| 1297 else if (*p == 'V') | |
| 1298 mymagic = MAGIC_NONE; | |
| 1299 } | |
| 1300 } | |
| 1301 return p; | |
| 1302 } | |
| 1303 | |
|
4805
66803af09906
updated for version 7.3.1149
Bram Moolenaar <bram@vim.org>
parents:
4770
diff
changeset
|
1304 static regprog_T *bt_regcomp __ARGS((char_u *expr, int re_flags)); |
|
66803af09906
updated for version 7.3.1149
Bram Moolenaar <bram@vim.org>
parents:
4770
diff
changeset
|
1305 static void bt_regfree __ARGS((regprog_T *prog)); |
| 4444 | 1306 |
| 7 | 1307 /* |
| 4444 | 1308 * bt_regcomp() - compile a regular expression into internal code for the |
| 1309 * traditional back track matcher. | |
| 41 | 1310 * Returns the program in allocated space. Returns NULL for an error. |
| 7 | 1311 * |
| 1312 * We can't allocate space until we know how big the compiled form will be, | |
| 1313 * but we can't compile it (and thus know how big it is) until we've got a | |
| 1314 * place to put the code. So we cheat: we compile it twice, once with code | |
| 1315 * generation turned off and size counting turned on, and once "for real". | |
| 1316 * This also means that we don't allocate space until we are sure that the | |
| 1317 * thing really will compile successfully, and we never have to move the | |
| 1318 * code and thus invalidate pointers into it. (Note that it has to be in | |
| 1319 * one piece because vim_free() must be able to free it all.) | |
| 1320 * | |
| 1321 * Whether upper/lower case is to be ignored is decided when executing the | |
| 1322 * program, it does not matter here. | |
| 1323 * | |
| 1324 * Beware that the optimization-preparation code in here knows about some | |
| 1325 * of the structure of the compiled regexp. | |
| 1326 * "re_flags": RE_MAGIC and/or RE_STRING. | |
| 1327 */ | |
| 4444 | 1328 static regprog_T * |
| 1329 bt_regcomp(expr, re_flags) | |
| 7 | 1330 char_u *expr; |
| 1331 int re_flags; | |
| 1332 { | |
| 4444 | 1333 bt_regprog_T *r; |
| 7 | 1334 char_u *scan; |
| 1335 char_u *longest; | |
| 1336 int len; | |
| 1337 int flags; | |
| 1338 | |
| 1339 if (expr == NULL) | |
| 1340 EMSG_RET_NULL(_(e_null)); | |
| 1341 | |
| 1342 init_class_tab(); | |
| 1343 | |
| 1344 /* | |
| 1345 * First pass: determine size, legality. | |
| 1346 */ | |
| 1347 regcomp_start(expr, re_flags); | |
| 1348 regcode = JUST_CALC_SIZE; | |
| 1349 regc(REGMAGIC); | |
| 1350 if (reg(REG_NOPAREN, &flags) == NULL) | |
| 1351 return NULL; | |
| 1352 | |
| 1353 /* Small enough for pointer-storage convention? */ | |
| 1354 #ifdef SMALL_MALLOC /* 16 bit storage allocation */ | |
| 1355 if (regsize >= 65536L - 256L) | |
| 1356 EMSG_RET_NULL(_("E339: Pattern too long")); | |
| 1357 #endif | |
| 1358 | |
| 1359 /* Allocate space. */ | |
| 4444 | 1360 r = (bt_regprog_T *)lalloc(sizeof(bt_regprog_T) + regsize, TRUE); |
| 7 | 1361 if (r == NULL) |
| 1362 return NULL; | |
| 1363 | |
| 1364 /* | |
| 1365 * Second pass: emit code. | |
| 1366 */ | |
| 1367 regcomp_start(expr, re_flags); | |
| 1368 regcode = r->program; | |
| 1369 regc(REGMAGIC); | |
| 2010 | 1370 if (reg(REG_NOPAREN, &flags) == NULL || reg_toolong) |
| 7 | 1371 { |
| 1372 vim_free(r); | |
| 2010 | 1373 if (reg_toolong) |
| 1374 EMSG_RET_NULL(_("E339: Pattern too long")); | |
| 7 | 1375 return NULL; |
| 1376 } | |
| 1377 | |
| 1378 /* Dig out information for optimizations. */ | |
| 1379 r->regstart = NUL; /* Worst-case defaults. */ | |
| 1380 r->reganch = 0; | |
| 1381 r->regmust = NULL; | |
| 1382 r->regmlen = 0; | |
| 1383 r->regflags = regflags; | |
| 1384 if (flags & HASNL) | |
| 1385 r->regflags |= RF_HASNL; | |
| 1386 if (flags & HASLOOKBH) | |
| 1387 r->regflags |= RF_LOOKBH; | |
| 1388 #ifdef FEAT_SYN_HL | |
| 1389 /* Remember whether this pattern has any \z specials in it. */ | |
| 1390 r->reghasz = re_has_z; | |
| 1391 #endif | |
| 1392 scan = r->program + 1; /* First BRANCH. */ | |
| 1393 if (OP(regnext(scan)) == END) /* Only one top-level choice. */ | |
| 1394 { | |
| 1395 scan = OPERAND(scan); | |
| 1396 | |
| 1397 /* Starting-point info. */ | |
| 1398 if (OP(scan) == BOL || OP(scan) == RE_BOF) | |
| 1399 { | |
| 1400 r->reganch++; | |
| 1401 scan = regnext(scan); | |
| 1402 } | |
| 1403 | |
| 1404 if (OP(scan) == EXACTLY) | |
| 1405 { | |
| 1406 #ifdef FEAT_MBYTE | |
| 1407 if (has_mbyte) | |
| 1408 r->regstart = (*mb_ptr2char)(OPERAND(scan)); | |
| 1409 else | |
| 1410 #endif | |
| 1411 r->regstart = *OPERAND(scan); | |
| 1412 } | |
| 1413 else if ((OP(scan) == BOW | |
| 1414 || OP(scan) == EOW | |
| 1415 || OP(scan) == NOTHING | |
| 1416 || OP(scan) == MOPEN + 0 || OP(scan) == NOPEN | |
| 1417 || OP(scan) == MCLOSE + 0 || OP(scan) == NCLOSE) | |
| 1418 && OP(regnext(scan)) == EXACTLY) | |
| 1419 { | |
| 1420 #ifdef FEAT_MBYTE | |
| 1421 if (has_mbyte) | |
| 1422 r->regstart = (*mb_ptr2char)(OPERAND(regnext(scan))); | |
| 1423 else | |
| 1424 #endif | |
| 1425 r->regstart = *OPERAND(regnext(scan)); | |
| 1426 } | |
| 1427 | |
| 1428 /* | |
| 1429 * If there's something expensive in the r.e., find the longest | |
| 1430 * literal string that must appear and make it the regmust. Resolve | |
| 1431 * ties in favor of later strings, since the regstart check works | |
| 1432 * with the beginning of the r.e. and avoiding duplication | |
| 1433 * strengthens checking. Not a strong reason, but sufficient in the | |
| 1434 * absence of others. | |
| 1435 */ | |
| 1436 /* | |
| 1437 * When the r.e. starts with BOW, it is faster to look for a regmust | |
| 1438 * first. Used a lot for "#" and "*" commands. (Added by mool). | |
| 1439 */ | |
| 1440 if ((flags & SPSTART || OP(scan) == BOW || OP(scan) == EOW) | |
| 1441 && !(flags & HASNL)) | |
| 1442 { | |
| 1443 longest = NULL; | |
| 1444 len = 0; | |
| 1445 for (; scan != NULL; scan = regnext(scan)) | |
| 1446 if (OP(scan) == EXACTLY && STRLEN(OPERAND(scan)) >= (size_t)len) | |
| 1447 { | |
| 1448 longest = OPERAND(scan); | |
| 1449 len = (int)STRLEN(OPERAND(scan)); | |
| 1450 } | |
| 1451 r->regmust = longest; | |
| 1452 r->regmlen = len; | |
| 1453 } | |
| 1454 } | |
| 4444 | 1455 #ifdef BT_REGEXP_DUMP |
| 7 | 1456 regdump(expr, r); |
| 1457 #endif | |
| 4444 | 1458 r->engine = &bt_regengine; |
| 1459 return (regprog_T *)r; | |
| 7 | 1460 } |
| 1461 | |
| 1462 /* | |
|
4805
66803af09906
updated for version 7.3.1149
Bram Moolenaar <bram@vim.org>
parents:
4770
diff
changeset
|
1463 * Free a compiled regexp program, returned by bt_regcomp(). |
|
66803af09906
updated for version 7.3.1149
Bram Moolenaar <bram@vim.org>
parents:
4770
diff
changeset
|
1464 */ |
|
66803af09906
updated for version 7.3.1149
Bram Moolenaar <bram@vim.org>
parents:
4770
diff
changeset
|
1465 static void |
|
66803af09906
updated for version 7.3.1149
Bram Moolenaar <bram@vim.org>
parents:
4770
diff
changeset
|
1466 bt_regfree(prog) |
|
66803af09906
updated for version 7.3.1149
Bram Moolenaar <bram@vim.org>
parents:
4770
diff
changeset
|
1467 regprog_T *prog; |
|
66803af09906
updated for version 7.3.1149
Bram Moolenaar <bram@vim.org>
parents:
4770
diff
changeset
|
1468 { |
|
66803af09906
updated for version 7.3.1149
Bram Moolenaar <bram@vim.org>
parents:
4770
diff
changeset
|
1469 vim_free(prog); |
|
66803af09906
updated for version 7.3.1149
Bram Moolenaar <bram@vim.org>
parents:
4770
diff
changeset
|
1470 } |
|
66803af09906
updated for version 7.3.1149
Bram Moolenaar <bram@vim.org>
parents:
4770
diff
changeset
|
1471 |
|
66803af09906
updated for version 7.3.1149
Bram Moolenaar <bram@vim.org>
parents:
4770
diff
changeset
|
1472 /* |
| 7 | 1473 * Setup to parse the regexp. Used once to get the length and once to do it. |
| 1474 */ | |
| 1475 static void | |
| 1476 regcomp_start(expr, re_flags) | |
| 1477 char_u *expr; | |
| 1478 int re_flags; /* see vim_regcomp() */ | |
| 1479 { | |
| 1480 initchr(expr); | |
| 1481 if (re_flags & RE_MAGIC) | |
| 1482 reg_magic = MAGIC_ON; | |
| 1483 else | |
| 1484 reg_magic = MAGIC_OFF; | |
| 1485 reg_string = (re_flags & RE_STRING); | |
| 481 | 1486 reg_strict = (re_flags & RE_STRICT); |
|
4744
a62695305e03
updated for version 7.3.1119
Bram Moolenaar <bram@vim.org>
parents:
4732
diff
changeset
|
1487 get_cpo_flags(); |
| 7 | 1488 |
| 1489 num_complex_braces = 0; | |
| 1490 regnpar = 1; | |
| 1491 vim_memset(had_endbrace, 0, sizeof(had_endbrace)); | |
| 1492 #ifdef FEAT_SYN_HL | |
| 1493 regnzpar = 1; | |
| 1494 re_has_z = 0; | |
| 1495 #endif | |
| 1496 regsize = 0L; | |
| 2010 | 1497 reg_toolong = FALSE; |
| 7 | 1498 regflags = 0; |
| 1499 #if defined(FEAT_SYN_HL) || defined(PROTO) | |
| 1500 had_eol = FALSE; | |
| 1501 #endif | |
| 1502 } | |
| 1503 | |
| 1504 #if defined(FEAT_SYN_HL) || defined(PROTO) | |
| 1505 /* | |
| 1506 * Check if during the previous call to vim_regcomp the EOL item "$" has been | |
| 1507 * found. This is messy, but it works fine. | |
| 1508 */ | |
| 1509 int | |
| 1510 vim_regcomp_had_eol() | |
| 1511 { | |
| 1512 return had_eol; | |
| 1513 } | |
| 1514 #endif | |
| 1515 | |
| 1516 /* | |
| 4444 | 1517 * Parse regular expression, i.e. main body or parenthesized thing. |
| 7 | 1518 * |
| 1519 * Caller must absorb opening parenthesis. | |
| 1520 * | |
| 1521 * Combining parenthesis handling with the base level of regular expression | |
| 1522 * is a trifle forced, but the need to tie the tails of the branches to what | |
| 1523 * follows makes it hard to avoid. | |
| 1524 */ | |
| 1525 static char_u * | |
| 1526 reg(paren, flagp) | |
| 1527 int paren; /* REG_NOPAREN, REG_PAREN, REG_NPAREN or REG_ZPAREN */ | |
| 1528 int *flagp; | |
| 1529 { | |
| 1530 char_u *ret; | |
| 1531 char_u *br; | |
| 1532 char_u *ender; | |
| 1533 int parno = 0; | |
| 1534 int flags; | |
| 1535 | |
| 1536 *flagp = HASWIDTH; /* Tentatively. */ | |
| 1537 | |
| 1538 #ifdef FEAT_SYN_HL | |
| 1539 if (paren == REG_ZPAREN) | |
| 1540 { | |
| 1541 /* Make a ZOPEN node. */ | |
| 1542 if (regnzpar >= NSUBEXP) | |
| 1543 EMSG_RET_NULL(_("E50: Too many \\z(")); | |
| 1544 parno = regnzpar; | |
| 1545 regnzpar++; | |
| 1546 ret = regnode(ZOPEN + parno); | |
| 1547 } | |
| 1548 else | |
| 1549 #endif | |
| 1550 if (paren == REG_PAREN) | |
| 1551 { | |
| 1552 /* Make a MOPEN node. */ | |
| 1553 if (regnpar >= NSUBEXP) | |
| 4444 | 1554 EMSG2_RET_NULL(_("E51: Too many %s("), reg_magic == MAGIC_ALL); |
| 7 | 1555 parno = regnpar; |
| 1556 ++regnpar; | |
| 1557 ret = regnode(MOPEN + parno); | |
| 1558 } | |
| 1559 else if (paren == REG_NPAREN) | |
| 1560 { | |
| 1561 /* Make a NOPEN node. */ | |
| 1562 ret = regnode(NOPEN); | |
| 1563 } | |
| 1564 else | |
| 1565 ret = NULL; | |
| 1566 | |
| 1567 /* Pick up the branches, linking them together. */ | |
| 1568 br = regbranch(&flags); | |
| 1569 if (br == NULL) | |
| 1570 return NULL; | |
| 1571 if (ret != NULL) | |
| 1572 regtail(ret, br); /* [MZ]OPEN -> first. */ | |
| 1573 else | |
| 1574 ret = br; | |
| 1575 /* If one of the branches can be zero-width, the whole thing can. | |
| 1576 * If one of the branches has * at start or matches a line-break, the | |
| 1577 * whole thing can. */ | |
| 1578 if (!(flags & HASWIDTH)) | |
| 1579 *flagp &= ~HASWIDTH; | |
| 1580 *flagp |= flags & (SPSTART | HASNL | HASLOOKBH); | |
| 1581 while (peekchr() == Magic('|')) | |
| 1582 { | |
| 1583 skipchr(); | |
| 1584 br = regbranch(&flags); | |
| 2010 | 1585 if (br == NULL || reg_toolong) |
| 7 | 1586 return NULL; |
| 1587 regtail(ret, br); /* BRANCH -> BRANCH. */ | |
| 1588 if (!(flags & HASWIDTH)) | |
| 1589 *flagp &= ~HASWIDTH; | |
| 1590 *flagp |= flags & (SPSTART | HASNL | HASLOOKBH); | |
| 1591 } | |
| 1592 | |
| 1593 /* Make a closing node, and hook it on the end. */ | |
| 1594 ender = regnode( | |
| 1595 #ifdef FEAT_SYN_HL | |
| 1596 paren == REG_ZPAREN ? ZCLOSE + parno : | |
| 1597 #endif | |
| 1598 paren == REG_PAREN ? MCLOSE + parno : | |
| 1599 paren == REG_NPAREN ? NCLOSE : END); | |
| 1600 regtail(ret, ender); | |
| 1601 | |
| 1602 /* Hook the tails of the branches to the closing node. */ | |
| 1603 for (br = ret; br != NULL; br = regnext(br)) | |
| 1604 regoptail(br, ender); | |
| 1605 | |
| 1606 /* Check for proper termination. */ | |
| 1607 if (paren != REG_NOPAREN && getchr() != Magic(')')) | |
| 1608 { | |
| 1609 #ifdef FEAT_SYN_HL | |
| 1610 if (paren == REG_ZPAREN) | |
| 308 | 1611 EMSG_RET_NULL(_("E52: Unmatched \\z(")); |
| 7 | 1612 else |
| 1613 #endif | |
| 1614 if (paren == REG_NPAREN) | |
| 4444 | 1615 EMSG2_RET_NULL(_(e_unmatchedpp), reg_magic == MAGIC_ALL); |
| 7 | 1616 else |
| 4444 | 1617 EMSG2_RET_NULL(_(e_unmatchedp), reg_magic == MAGIC_ALL); |
| 7 | 1618 } |
| 1619 else if (paren == REG_NOPAREN && peekchr() != NUL) | |
| 1620 { | |
| 1621 if (curchr == Magic(')')) | |
| 4444 | 1622 EMSG2_RET_NULL(_(e_unmatchedpar), reg_magic == MAGIC_ALL); |
| 7 | 1623 else |
| 308 | 1624 EMSG_RET_NULL(_(e_trailing)); /* "Can't happen". */ |
| 7 | 1625 /* NOTREACHED */ |
| 1626 } | |
| 1627 /* | |
| 1628 * Here we set the flag allowing back references to this set of | |
| 1629 * parentheses. | |
| 1630 */ | |
| 1631 if (paren == REG_PAREN) | |
| 1632 had_endbrace[parno] = TRUE; /* have seen the close paren */ | |
| 1633 return ret; | |
| 1634 } | |
| 1635 | |
| 1636 /* | |
| 4444 | 1637 * Parse one alternative of an | operator. |
| 7 | 1638 * Implements the & operator. |
| 1639 */ | |
| 1640 static char_u * | |
| 1641 regbranch(flagp) | |
| 1642 int *flagp; | |
| 1643 { | |
| 1644 char_u *ret; | |
| 1645 char_u *chain = NULL; | |
| 1646 char_u *latest; | |
| 1647 int flags; | |
| 1648 | |
| 1649 *flagp = WORST | HASNL; /* Tentatively. */ | |
| 1650 | |
| 1651 ret = regnode(BRANCH); | |
| 1652 for (;;) | |
| 1653 { | |
| 1654 latest = regconcat(&flags); | |
| 1655 if (latest == NULL) | |
| 1656 return NULL; | |
| 1657 /* If one of the branches has width, the whole thing has. If one of | |
| 1658 * the branches anchors at start-of-line, the whole thing does. | |
| 1659 * If one of the branches uses look-behind, the whole thing does. */ | |
| 1660 *flagp |= flags & (HASWIDTH | SPSTART | HASLOOKBH); | |
| 1661 /* If one of the branches doesn't match a line-break, the whole thing | |
| 1662 * doesn't. */ | |
| 1663 *flagp &= ~HASNL | (flags & HASNL); | |
| 1664 if (chain != NULL) | |
| 1665 regtail(chain, latest); | |
| 1666 if (peekchr() != Magic('&')) | |
| 1667 break; | |
| 1668 skipchr(); | |
| 1669 regtail(latest, regnode(END)); /* operand ends */ | |
| 2010 | 1670 if (reg_toolong) |
| 1671 break; | |
| 7 | 1672 reginsert(MATCH, latest); |
| 1673 chain = latest; | |
| 1674 } | |
| 1675 | |
| 1676 return ret; | |
| 1677 } | |
| 1678 | |
| 1679 /* | |
| 4444 | 1680 * Parse one alternative of an | or & operator. |
| 7 | 1681 * Implements the concatenation operator. |
| 1682 */ | |
| 1683 static char_u * | |
| 1684 regconcat(flagp) | |
| 1685 int *flagp; | |
| 1686 { | |
| 1687 char_u *first = NULL; | |
| 1688 char_u *chain = NULL; | |
| 1689 char_u *latest; | |
| 1690 int flags; | |
| 1691 int cont = TRUE; | |
| 1692 | |
| 1693 *flagp = WORST; /* Tentatively. */ | |
| 1694 | |
| 1695 while (cont) | |
| 1696 { | |
| 1697 switch (peekchr()) | |
| 1698 { | |
| 1699 case NUL: | |
| 1700 case Magic('|'): | |
| 1701 case Magic('&'): | |
| 1702 case Magic(')'): | |
| 1703 cont = FALSE; | |
| 1704 break; | |
| 1705 case Magic('Z'): | |
| 1706 #ifdef FEAT_MBYTE | |
| 1707 regflags |= RF_ICOMBINE; | |
| 1708 #endif | |
| 1709 skipchr_keepstart(); | |
| 1710 break; | |
| 1711 case Magic('c'): | |
| 1712 regflags |= RF_ICASE; | |
| 1713 skipchr_keepstart(); | |
| 1714 break; | |
| 1715 case Magic('C'): | |
| 1716 regflags |= RF_NOICASE; | |
| 1717 skipchr_keepstart(); | |
| 1718 break; | |
| 1719 case Magic('v'): | |
| 1720 reg_magic = MAGIC_ALL; | |
| 1721 skipchr_keepstart(); | |
| 1722 curchr = -1; | |
| 1723 break; | |
| 1724 case Magic('m'): | |
| 1725 reg_magic = MAGIC_ON; | |
| 1726 skipchr_keepstart(); | |
| 1727 curchr = -1; | |
| 1728 break; | |
| 1729 case Magic('M'): | |
| 1730 reg_magic = MAGIC_OFF; | |
| 1731 skipchr_keepstart(); | |
| 1732 curchr = -1; | |
| 1733 break; | |
| 1734 case Magic('V'): | |
| 1735 reg_magic = MAGIC_NONE; | |
| 1736 skipchr_keepstart(); | |
| 1737 curchr = -1; | |
| 1738 break; | |
| 1739 default: | |
| 1740 latest = regpiece(&flags); | |
| 2010 | 1741 if (latest == NULL || reg_toolong) |
| 7 | 1742 return NULL; |
| 1743 *flagp |= flags & (HASWIDTH | HASNL | HASLOOKBH); | |
| 1744 if (chain == NULL) /* First piece. */ | |
| 1745 *flagp |= flags & SPSTART; | |
| 1746 else | |
| 1747 regtail(chain, latest); | |
| 1748 chain = latest; | |
| 1749 if (first == NULL) | |
| 1750 first = latest; | |
| 1751 break; | |
| 1752 } | |
| 1753 } | |
| 1754 if (first == NULL) /* Loop ran zero times. */ | |
| 1755 first = regnode(NOTHING); | |
| 1756 return first; | |
| 1757 } | |
| 1758 | |
| 1759 /* | |
| 4444 | 1760 * Parse something followed by possible [*+=]. |
| 7 | 1761 * |
| 1762 * Note that the branching code sequences used for = and the general cases | |
| 1763 * of * and + are somewhat optimized: they use the same NOTHING node as | |
| 1764 * both the endmarker for their branch list and the body of the last branch. | |
| 1765 * It might seem that this node could be dispensed with entirely, but the | |
| 1766 * endmarker role is not redundant. | |
| 1767 */ | |
| 1768 static char_u * | |
| 1769 regpiece(flagp) | |
| 1770 int *flagp; | |
| 1771 { | |
| 1772 char_u *ret; | |
| 1773 int op; | |
| 1774 char_u *next; | |
| 1775 int flags; | |
| 1776 long minval; | |
| 1777 long maxval; | |
| 1778 | |
| 1779 ret = regatom(&flags); | |
| 1780 if (ret == NULL) | |
| 1781 return NULL; | |
| 1782 | |
| 1783 op = peekchr(); | |
| 1784 if (re_multi_type(op) == NOT_MULTI) | |
| 1785 { | |
| 1786 *flagp = flags; | |
| 1787 return ret; | |
| 1788 } | |
| 1789 /* default flags */ | |
| 1790 *flagp = (WORST | SPSTART | (flags & (HASNL | HASLOOKBH))); | |
| 1791 | |
| 1792 skipchr(); | |
| 1793 switch (op) | |
| 1794 { | |
| 1795 case Magic('*'): | |
| 1796 if (flags & SIMPLE) | |
| 1797 reginsert(STAR, ret); | |
| 1798 else | |
| 1799 { | |
| 1800 /* Emit x* as (x&|), where & means "self". */ | |
| 1801 reginsert(BRANCH, ret); /* Either x */ | |
| 1802 regoptail(ret, regnode(BACK)); /* and loop */ | |
| 1803 regoptail(ret, ret); /* back */ | |
| 1804 regtail(ret, regnode(BRANCH)); /* or */ | |
| 1805 regtail(ret, regnode(NOTHING)); /* null. */ | |
| 1806 } | |
| 1807 break; | |
| 1808 | |
| 1809 case Magic('+'): | |
| 1810 if (flags & SIMPLE) | |
| 1811 reginsert(PLUS, ret); | |
| 1812 else | |
| 1813 { | |
| 1814 /* Emit x+ as x(&|), where & means "self". */ | |
| 1815 next = regnode(BRANCH); /* Either */ | |
| 1816 regtail(ret, next); | |
| 233 | 1817 regtail(regnode(BACK), ret); /* loop back */ |
| 7 | 1818 regtail(next, regnode(BRANCH)); /* or */ |
| 1819 regtail(ret, regnode(NOTHING)); /* null. */ | |
| 1820 } | |
| 1821 *flagp = (WORST | HASWIDTH | (flags & (HASNL | HASLOOKBH))); | |
| 1822 break; | |
| 1823 | |
| 1824 case Magic('@'): | |
| 1825 { | |
| 1826 int lop = END; | |
|
4579
7a2be4a39423
updated for version 7.3.1037
Bram Moolenaar <bram@vim.org>
parents:
4505
diff
changeset
|
1827 int nr; |
|
7a2be4a39423
updated for version 7.3.1037
Bram Moolenaar <bram@vim.org>
parents:
4505
diff
changeset
|
1828 |
|
7a2be4a39423
updated for version 7.3.1037
Bram Moolenaar <bram@vim.org>
parents:
4505
diff
changeset
|
1829 nr = getdecchrs(); |
| 7 | 1830 switch (no_Magic(getchr())) |
| 1831 { | |
| 1832 case '=': lop = MATCH; break; /* \@= */ | |
| 1833 case '!': lop = NOMATCH; break; /* \@! */ | |
| 1834 case '>': lop = SUBPAT; break; /* \@> */ | |
| 1835 case '<': switch (no_Magic(getchr())) | |
| 1836 { | |
| 1837 case '=': lop = BEHIND; break; /* \@<= */ | |
| 1838 case '!': lop = NOBEHIND; break; /* \@<! */ | |
| 1839 } | |
| 1840 } | |
| 1841 if (lop == END) | |
| 4444 | 1842 EMSG2_RET_NULL(_("E59: invalid character after %s@"), |
| 7 | 1843 reg_magic == MAGIC_ALL); |
| 1844 /* Look behind must match with behind_pos. */ | |
| 1845 if (lop == BEHIND || lop == NOBEHIND) | |
| 1846 { | |
| 1847 regtail(ret, regnode(BHPOS)); | |
| 1848 *flagp |= HASLOOKBH; | |
| 1849 } | |
| 1850 regtail(ret, regnode(END)); /* operand ends */ | |
|
4579
7a2be4a39423
updated for version 7.3.1037
Bram Moolenaar <bram@vim.org>
parents:
4505
diff
changeset
|
1851 if (lop == BEHIND || lop == NOBEHIND) |
|
7a2be4a39423
updated for version 7.3.1037
Bram Moolenaar <bram@vim.org>
parents:
4505
diff
changeset
|
1852 { |
|
7a2be4a39423
updated for version 7.3.1037
Bram Moolenaar <bram@vim.org>
parents:
4505
diff
changeset
|
1853 if (nr < 0) |
|
7a2be4a39423
updated for version 7.3.1037
Bram Moolenaar <bram@vim.org>
parents:
4505
diff
changeset
|
1854 nr = 0; /* no limit is same as zero limit */ |
|
7a2be4a39423
updated for version 7.3.1037
Bram Moolenaar <bram@vim.org>
parents:
4505
diff
changeset
|
1855 reginsert_nr(lop, nr, ret); |
|
7a2be4a39423
updated for version 7.3.1037
Bram Moolenaar <bram@vim.org>
parents:
4505
diff
changeset
|
1856 } |
|
7a2be4a39423
updated for version 7.3.1037
Bram Moolenaar <bram@vim.org>
parents:
4505
diff
changeset
|
1857 else |
|
7a2be4a39423
updated for version 7.3.1037
Bram Moolenaar <bram@vim.org>
parents:
4505
diff
changeset
|
1858 reginsert(lop, ret); |
| 7 | 1859 break; |
| 1860 } | |
| 1861 | |
| 1862 case Magic('?'): | |
| 1863 case Magic('='): | |
| 1864 /* Emit x= as (x|) */ | |
| 1865 reginsert(BRANCH, ret); /* Either x */ | |
| 1866 regtail(ret, regnode(BRANCH)); /* or */ | |
| 1867 next = regnode(NOTHING); /* null. */ | |
| 1868 regtail(ret, next); | |
| 1869 regoptail(ret, next); | |
| 1870 break; | |
| 1871 | |
| 1872 case Magic('{'): | |
| 1873 if (!read_limits(&minval, &maxval)) | |
| 1874 return NULL; | |
| 1875 if (flags & SIMPLE) | |
| 1876 { | |
| 1877 reginsert(BRACE_SIMPLE, ret); | |
| 1878 reginsert_limits(BRACE_LIMITS, minval, maxval, ret); | |
| 1879 } | |
| 1880 else | |
| 1881 { | |
| 1882 if (num_complex_braces >= 10) | |
| 4444 | 1883 EMSG2_RET_NULL(_("E60: Too many complex %s{...}s"), |
| 7 | 1884 reg_magic == MAGIC_ALL); |
| 1885 reginsert(BRACE_COMPLEX + num_complex_braces, ret); | |
| 1886 regoptail(ret, regnode(BACK)); | |
| 1887 regoptail(ret, ret); | |
| 1888 reginsert_limits(BRACE_LIMITS, minval, maxval, ret); | |
| 1889 ++num_complex_braces; | |
| 1890 } | |
| 1891 if (minval > 0 && maxval > 0) | |
| 1892 *flagp = (HASWIDTH | (flags & (HASNL | HASLOOKBH))); | |
| 1893 break; | |
| 1894 } | |
| 1895 if (re_multi_type(peekchr()) != NOT_MULTI) | |
| 1896 { | |
| 1897 /* Can't have a multi follow a multi. */ | |
| 1898 if (peekchr() == Magic('*')) | |
| 1899 sprintf((char *)IObuff, _("E61: Nested %s*"), | |
| 1900 reg_magic >= MAGIC_ON ? "" : "\\"); | |
| 1901 else | |
| 1902 sprintf((char *)IObuff, _("E62: Nested %s%c"), | |
| 1903 reg_magic == MAGIC_ALL ? "" : "\\", no_Magic(peekchr())); | |
| 1904 EMSG_RET_NULL(IObuff); | |
| 1905 } | |
| 1906 | |
| 1907 return ret; | |
| 1908 } | |
| 1909 | |
| 4444 | 1910 /* When making changes to classchars also change nfa_classcodes. */ |
| 1911 static char_u *classchars = (char_u *)".iIkKfFpPsSdDxXoOwWhHaAlLuU"; | |
| 1912 static int classcodes[] = { | |
| 1913 ANY, IDENT, SIDENT, KWORD, SKWORD, | |
| 1914 FNAME, SFNAME, PRINT, SPRINT, | |
| 1915 WHITE, NWHITE, DIGIT, NDIGIT, | |
| 1916 HEX, NHEX, OCTAL, NOCTAL, | |
| 1917 WORD, NWORD, HEAD, NHEAD, | |
| 1918 ALPHA, NALPHA, LOWER, NLOWER, | |
| 1919 UPPER, NUPPER | |
| 1920 }; | |
| 1921 | |
| 7 | 1922 /* |
| 4444 | 1923 * Parse the lowest level. |
| 7 | 1924 * |
| 1925 * Optimization: gobbles an entire sequence of ordinary characters so that | |
| 1926 * it can turn them into a single node, which is smaller to store and | |
| 1927 * faster to run. Don't do this when one_exactly is set. | |
| 1928 */ | |
| 1929 static char_u * | |
| 1930 regatom(flagp) | |
| 1931 int *flagp; | |
| 1932 { | |
| 1933 char_u *ret; | |
| 1934 int flags; | |
| 1935 int c; | |
| 1936 char_u *p; | |
| 1937 int extra = 0; | |
| 1938 | |
| 1939 *flagp = WORST; /* Tentatively. */ | |
| 1940 | |
| 1941 c = getchr(); | |
| 1942 switch (c) | |
| 1943 { | |
| 1944 case Magic('^'): | |
| 1945 ret = regnode(BOL); | |
| 1946 break; | |
| 1947 | |
| 1948 case Magic('$'): | |
| 1949 ret = regnode(EOL); | |
| 1950 #if defined(FEAT_SYN_HL) || defined(PROTO) | |
| 1951 had_eol = TRUE; | |
| 1952 #endif | |
| 1953 break; | |
| 1954 | |
| 1955 case Magic('<'): | |
| 1956 ret = regnode(BOW); | |
| 1957 break; | |
| 1958 | |
| 1959 case Magic('>'): | |
| 1960 ret = regnode(EOW); | |
| 1961 break; | |
| 1962 | |
| 1963 case Magic('_'): | |
| 1964 c = no_Magic(getchr()); | |
| 1965 if (c == '^') /* "\_^" is start-of-line */ | |
| 1966 { | |
| 1967 ret = regnode(BOL); | |
| 1968 break; | |
| 1969 } | |
| 1970 if (c == '$') /* "\_$" is end-of-line */ | |
| 1971 { | |
| 1972 ret = regnode(EOL); | |
| 1973 #if defined(FEAT_SYN_HL) || defined(PROTO) | |
| 1974 had_eol = TRUE; | |
| 1975 #endif | |
| 1976 break; | |
| 1977 } | |
| 1978 | |
| 1979 extra = ADD_NL; | |
| 1980 *flagp |= HASNL; | |
| 1981 | |
| 1982 /* "\_[" is character range plus newline */ | |
| 1983 if (c == '[') | |
| 1984 goto collection; | |
| 1985 | |
| 1986 /* "\_x" is character class plus newline */ | |
| 1987 /*FALLTHROUGH*/ | |
| 1988 | |
| 1989 /* | |
| 1990 * Character classes. | |
| 1991 */ | |
| 1992 case Magic('.'): | |
| 1993 case Magic('i'): | |
| 1994 case Magic('I'): | |
| 1995 case Magic('k'): | |
| 1996 case Magic('K'): | |
| 1997 case Magic('f'): | |
| 1998 case Magic('F'): | |
| 1999 case Magic('p'): | |
| 2000 case Magic('P'): | |
| 2001 case Magic('s'): | |
| 2002 case Magic('S'): | |
| 2003 case Magic('d'): | |
| 2004 case Magic('D'): | |
| 2005 case Magic('x'): | |
| 2006 case Magic('X'): | |
| 2007 case Magic('o'): | |
| 2008 case Magic('O'): | |
| 2009 case Magic('w'): | |
| 2010 case Magic('W'): | |
| 2011 case Magic('h'): | |
| 2012 case Magic('H'): | |
| 2013 case Magic('a'): | |
| 2014 case Magic('A'): | |
| 2015 case Magic('l'): | |
| 2016 case Magic('L'): | |
| 2017 case Magic('u'): | |
| 2018 case Magic('U'): | |
| 2019 p = vim_strchr(classchars, no_Magic(c)); | |
| 2020 if (p == NULL) | |
| 2021 EMSG_RET_NULL(_("E63: invalid use of \\_")); | |
| 714 | 2022 #ifdef FEAT_MBYTE |
| 2023 /* When '.' is followed by a composing char ignore the dot, so that | |
| 2024 * the composing char is matched here. */ | |
| 2025 if (enc_utf8 && c == Magic('.') && utf_iscomposing(peekchr())) | |
| 2026 { | |
| 2027 c = getchr(); | |
| 2028 goto do_multibyte; | |
| 2029 } | |
| 2030 #endif | |
| 7 | 2031 ret = regnode(classcodes[p - classchars] + extra); |
| 2032 *flagp |= HASWIDTH | SIMPLE; | |
| 2033 break; | |
| 2034 | |
| 2035 case Magic('n'): | |
| 2036 if (reg_string) | |
| 2037 { | |
| 2038 /* In a string "\n" matches a newline character. */ | |
| 2039 ret = regnode(EXACTLY); | |
| 2040 regc(NL); | |
| 2041 regc(NUL); | |
| 2042 *flagp |= HASWIDTH | SIMPLE; | |
| 2043 } | |
| 2044 else | |
| 2045 { | |
| 2046 /* In buffer text "\n" matches the end of a line. */ | |
| 2047 ret = regnode(NEWL); | |
| 2048 *flagp |= HASWIDTH | HASNL; | |
| 2049 } | |
| 2050 break; | |
| 2051 | |
| 2052 case Magic('('): | |
| 2053 if (one_exactly) | |
| 2054 EMSG_ONE_RET_NULL; | |
| 2055 ret = reg(REG_PAREN, &flags); | |
| 2056 if (ret == NULL) | |
| 2057 return NULL; | |
| 2058 *flagp |= flags & (HASWIDTH | SPSTART | HASNL | HASLOOKBH); | |
| 2059 break; | |
| 2060 | |
| 2061 case NUL: | |
| 2062 case Magic('|'): | |
| 2063 case Magic('&'): | |
| 2064 case Magic(')'): | |
| 1468 | 2065 if (one_exactly) |
| 2066 EMSG_ONE_RET_NULL; | |
| 7 | 2067 EMSG_RET_NULL(_(e_internal)); /* Supposed to be caught earlier. */ |
| 2068 /* NOTREACHED */ | |
| 2069 | |
| 2070 case Magic('='): | |
| 2071 case Magic('?'): | |
| 2072 case Magic('+'): | |
| 2073 case Magic('@'): | |
| 2074 case Magic('{'): | |
| 2075 case Magic('*'): | |
| 2076 c = no_Magic(c); | |
| 2077 sprintf((char *)IObuff, _("E64: %s%c follows nothing"), | |
| 2078 (c == '*' ? reg_magic >= MAGIC_ON : reg_magic == MAGIC_ALL) | |
| 2079 ? "" : "\\", c); | |
| 2080 EMSG_RET_NULL(IObuff); | |
| 2081 /* NOTREACHED */ | |
| 2082 | |
| 2083 case Magic('~'): /* previous substitute pattern */ | |
| 359 | 2084 if (reg_prev_sub != NULL) |
| 7 | 2085 { |
| 2086 char_u *lp; | |
| 2087 | |
| 2088 ret = regnode(EXACTLY); | |
| 2089 lp = reg_prev_sub; | |
| 2090 while (*lp != NUL) | |
| 2091 regc(*lp++); | |
| 2092 regc(NUL); | |
| 2093 if (*reg_prev_sub != NUL) | |
| 2094 { | |
| 2095 *flagp |= HASWIDTH; | |
| 2096 if ((lp - reg_prev_sub) == 1) | |
| 2097 *flagp |= SIMPLE; | |
| 2098 } | |
| 2099 } | |
| 2100 else | |
| 2101 EMSG_RET_NULL(_(e_nopresub)); | |
| 2102 break; | |
| 2103 | |
| 2104 case Magic('1'): | |
| 2105 case Magic('2'): | |
| 2106 case Magic('3'): | |
| 2107 case Magic('4'): | |
| 2108 case Magic('5'): | |
| 2109 case Magic('6'): | |
| 2110 case Magic('7'): | |
| 2111 case Magic('8'): | |
| 2112 case Magic('9'): | |
| 2113 { | |
| 2114 int refnum; | |
| 2115 | |
| 2116 refnum = c - Magic('0'); | |
| 2117 /* | |
| 2118 * Check if the back reference is legal. We must have seen the | |
| 2119 * close brace. | |
| 2120 * TODO: Should also check that we don't refer to something | |
| 2121 * that is repeated (+*=): what instance of the repetition | |
| 2122 * should we match? | |
| 2123 */ | |
| 2124 if (!had_endbrace[refnum]) | |
| 2125 { | |
| 2126 /* Trick: check if "@<=" or "@<!" follows, in which case | |
| 2127 * the \1 can appear before the referenced match. */ | |
| 2128 for (p = regparse; *p != NUL; ++p) | |
| 2129 if (p[0] == '@' && p[1] == '<' | |
| 2130 && (p[2] == '!' || p[2] == '=')) | |
| 2131 break; | |
| 2132 if (*p == NUL) | |
| 2133 EMSG_RET_NULL(_("E65: Illegal back reference")); | |
| 2134 } | |
| 2135 ret = regnode(BACKREF + refnum); | |
| 2136 } | |
| 2137 break; | |
| 2138 | |
| 2139 case Magic('z'): | |
| 2140 { | |
| 2141 c = no_Magic(getchr()); | |
| 2142 switch (c) | |
| 2143 { | |
| 741 | 2144 #ifdef FEAT_SYN_HL |
| 7 | 2145 case '(': if (reg_do_extmatch != REX_SET) |
|
4688
371cc0c44097
updated for version 7.3.1091
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2146 EMSG_RET_NULL(_(e_z_not_allowed)); |
| 7 | 2147 if (one_exactly) |
| 2148 EMSG_ONE_RET_NULL; | |
| 2149 ret = reg(REG_ZPAREN, &flags); | |
| 2150 if (ret == NULL) | |
| 2151 return NULL; | |
| 2152 *flagp |= flags & (HASWIDTH|SPSTART|HASNL|HASLOOKBH); | |
| 2153 re_has_z = REX_SET; | |
| 2154 break; | |
| 2155 | |
| 2156 case '1': | |
| 2157 case '2': | |
| 2158 case '3': | |
| 2159 case '4': | |
| 2160 case '5': | |
| 2161 case '6': | |
| 2162 case '7': | |
| 2163 case '8': | |
| 2164 case '9': if (reg_do_extmatch != REX_USE) | |
|
4688
371cc0c44097
updated for version 7.3.1091
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2165 EMSG_RET_NULL(_(e_z1_not_allowed)); |
| 7 | 2166 ret = regnode(ZREF + c - '0'); |
| 2167 re_has_z = REX_USE; | |
| 2168 break; | |
| 741 | 2169 #endif |
| 7 | 2170 |
| 2171 case 's': ret = regnode(MOPEN + 0); | |
| 6203 | 2172 if (re_mult_next("\\zs") == FAIL) |
| 2173 return NULL; | |
| 7 | 2174 break; |
| 2175 | |
| 2176 case 'e': ret = regnode(MCLOSE + 0); | |
| 6203 | 2177 if (re_mult_next("\\ze") == FAIL) |
| 2178 return NULL; | |
| 7 | 2179 break; |
| 2180 | |
| 2181 default: EMSG_RET_NULL(_("E68: Invalid character after \\z")); | |
| 2182 } | |
| 2183 } | |
| 2184 break; | |
| 2185 | |
| 2186 case Magic('%'): | |
| 2187 { | |
| 2188 c = no_Magic(getchr()); | |
| 2189 switch (c) | |
| 2190 { | |
| 2191 /* () without a back reference */ | |
| 2192 case '(': | |
| 2193 if (one_exactly) | |
| 2194 EMSG_ONE_RET_NULL; | |
| 2195 ret = reg(REG_NPAREN, &flags); | |
| 2196 if (ret == NULL) | |
| 2197 return NULL; | |
| 2198 *flagp |= flags & (HASWIDTH | SPSTART | HASNL | HASLOOKBH); | |
| 2199 break; | |
| 2200 | |
| 2201 /* Catch \%^ and \%$ regardless of where they appear in the | |
| 2202 * pattern -- regardless of whether or not it makes sense. */ | |
| 2203 case '^': | |
| 2204 ret = regnode(RE_BOF); | |
| 2205 break; | |
| 2206 | |
| 2207 case '$': | |
| 2208 ret = regnode(RE_EOF); | |
| 2209 break; | |
| 2210 | |
| 2211 case '#': | |
| 2212 ret = regnode(CURSOR); | |
| 2213 break; | |
| 2214 | |
| 639 | 2215 case 'V': |
| 2216 ret = regnode(RE_VISUAL); | |
| 2217 break; | |
| 2218 | |
| 5901 | 2219 case 'C': |
| 2220 ret = regnode(RE_COMPOSING); | |
| 2221 break; | |
| 2222 | |
| 7 | 2223 /* \%[abc]: Emit as a list of branches, all ending at the last |
| 2224 * branch which matches nothing. */ | |
| 2225 case '[': | |
| 2226 if (one_exactly) /* doesn't nest */ | |
| 2227 EMSG_ONE_RET_NULL; | |
| 2228 { | |
| 2229 char_u *lastbranch; | |
| 2230 char_u *lastnode = NULL; | |
| 2231 char_u *br; | |
| 2232 | |
| 2233 ret = NULL; | |
| 2234 while ((c = getchr()) != ']') | |
| 2235 { | |
| 2236 if (c == NUL) | |
|
4744
a62695305e03
updated for version 7.3.1119
Bram Moolenaar <bram@vim.org>
parents:
4732
diff
changeset
|
2237 EMSG2_RET_NULL(_(e_missing_sb), |
| 7 | 2238 reg_magic == MAGIC_ALL); |
| 2239 br = regnode(BRANCH); | |
| 2240 if (ret == NULL) | |
| 2241 ret = br; | |
| 2242 else | |
| 2243 regtail(lastnode, br); | |
| 2244 | |
| 2245 ungetchr(); | |
| 2246 one_exactly = TRUE; | |
| 2247 lastnode = regatom(flagp); | |
| 2248 one_exactly = FALSE; | |
| 2249 if (lastnode == NULL) | |
| 2250 return NULL; | |
| 2251 } | |
| 2252 if (ret == NULL) | |
|
4760
532a9855bd30
updated for version 7.3.1127
Bram Moolenaar <bram@vim.org>
parents:
4746
diff
changeset
|
2253 EMSG2_RET_NULL(_(e_empty_sb), |
| 7 | 2254 reg_magic == MAGIC_ALL); |
| 2255 lastbranch = regnode(BRANCH); | |
| 2256 br = regnode(NOTHING); | |
| 2257 if (ret != JUST_CALC_SIZE) | |
| 2258 { | |
| 2259 regtail(lastnode, br); | |
| 2260 regtail(lastbranch, br); | |
| 2261 /* connect all branches to the NOTHING | |
| 2262 * branch at the end */ | |
| 2263 for (br = ret; br != lastnode; ) | |
| 2264 { | |
| 2265 if (OP(br) == BRANCH) | |
| 2266 { | |
| 2267 regtail(br, lastbranch); | |
| 2268 br = OPERAND(br); | |
| 2269 } | |
| 2270 else | |
| 2271 br = regnext(br); | |
| 2272 } | |
| 2273 } | |
| 1701 | 2274 *flagp &= ~(HASWIDTH | SIMPLE); |
| 7 | 2275 break; |
| 2276 } | |
| 2277 | |
| 24 | 2278 case 'd': /* %d123 decimal */ |
| 2279 case 'o': /* %o123 octal */ | |
| 2280 case 'x': /* %xab hex 2 */ | |
| 2281 case 'u': /* %uabcd hex 4 */ | |
| 2282 case 'U': /* %U1234abcd hex 8 */ | |
| 2283 { | |
| 2284 int i; | |
| 2285 | |
| 2286 switch (c) | |
| 2287 { | |
| 2288 case 'd': i = getdecchrs(); break; | |
| 2289 case 'o': i = getoctchrs(); break; | |
| 2290 case 'x': i = gethexchrs(2); break; | |
| 2291 case 'u': i = gethexchrs(4); break; | |
| 2292 case 'U': i = gethexchrs(8); break; | |
| 2293 default: i = -1; break; | |
| 2294 } | |
| 2295 | |
| 2296 if (i < 0) | |
| 4444 | 2297 EMSG2_RET_NULL( |
| 24 | 2298 _("E678: Invalid character after %s%%[dxouU]"), |
| 2299 reg_magic == MAGIC_ALL); | |
| 714 | 2300 #ifdef FEAT_MBYTE |
| 2301 if (use_multibytecode(i)) | |
| 2302 ret = regnode(MULTIBYTECODE); | |
| 2303 else | |
| 2304 #endif | |
| 2305 ret = regnode(EXACTLY); | |
| 24 | 2306 if (i == 0) |
| 2307 regc(0x0a); | |
| 2308 else | |
| 2309 #ifdef FEAT_MBYTE | |
| 2310 regmbc(i); | |
| 2311 #else | |
| 2312 regc(i); | |
| 2313 #endif | |
| 2314 regc(NUL); | |
| 2315 *flagp |= HASWIDTH; | |
| 2316 break; | |
| 2317 } | |
| 2318 | |
| 7 | 2319 default: |
| 639 | 2320 if (VIM_ISDIGIT(c) || c == '<' || c == '>' |
| 2321 || c == '\'') | |
| 7 | 2322 { |
| 2323 long_u n = 0; | |
| 2324 int cmp; | |
| 2325 | |
| 2326 cmp = c; | |
| 2327 if (cmp == '<' || cmp == '>') | |
| 2328 c = getchr(); | |
| 2329 while (VIM_ISDIGIT(c)) | |
| 2330 { | |
| 2331 n = n * 10 + (c - '0'); | |
| 2332 c = getchr(); | |
| 2333 } | |
| 639 | 2334 if (c == '\'' && n == 0) |
| 2335 { | |
| 2336 /* "\%'m", "\%<'m" and "\%>'m": Mark */ | |
| 2337 c = getchr(); | |
| 2338 ret = regnode(RE_MARK); | |
| 2339 if (ret == JUST_CALC_SIZE) | |
| 2340 regsize += 2; | |
| 2341 else | |
| 2342 { | |
| 2343 *regcode++ = c; | |
| 2344 *regcode++ = cmp; | |
| 2345 } | |
| 2346 break; | |
| 2347 } | |
| 2348 else if (c == 'l' || c == 'c' || c == 'v') | |
| 7 | 2349 { |
| 2350 if (c == 'l') | |
| 2351 ret = regnode(RE_LNUM); | |
| 2352 else if (c == 'c') | |
| 2353 ret = regnode(RE_COL); | |
| 2354 else | |
| 2355 ret = regnode(RE_VCOL); | |
| 2356 if (ret == JUST_CALC_SIZE) | |
| 2357 regsize += 5; | |
| 2358 else | |
| 2359 { | |
| 2360 /* put the number and the optional | |
| 2361 * comparator after the opcode */ | |
| 2362 regcode = re_put_long(regcode, n); | |
| 2363 *regcode++ = cmp; | |
| 2364 } | |
| 2365 break; | |
| 2366 } | |
| 2367 } | |
| 2368 | |
| 4444 | 2369 EMSG2_RET_NULL(_("E71: Invalid character after %s%%"), |
| 7 | 2370 reg_magic == MAGIC_ALL); |
| 2371 } | |
| 2372 } | |
| 2373 break; | |
| 2374 | |
| 2375 case Magic('['): | |
| 2376 collection: | |
| 2377 { | |
| 2378 char_u *lp; | |
| 2379 | |
| 2380 /* | |
| 2381 * If there is no matching ']', we assume the '[' is a normal | |
| 2382 * character. This makes 'incsearch' and ":help [" work. | |
| 2383 */ | |
| 2384 lp = skip_anyof(regparse); | |
| 2385 if (*lp == ']') /* there is a matching ']' */ | |
| 2386 { | |
| 2387 int startc = -1; /* > 0 when next '-' is a range */ | |
| 2388 int endc; | |
| 2389 | |
| 2390 /* | |
| 2391 * In a character class, different parsing rules apply. | |
| 2392 * Not even \ is special anymore, nothing is. | |
| 2393 */ | |
| 2394 if (*regparse == '^') /* Complement of range. */ | |
| 2395 { | |
| 2396 ret = regnode(ANYBUT + extra); | |
| 2397 regparse++; | |
| 2398 } | |
| 2399 else | |
| 2400 ret = regnode(ANYOF + extra); | |
| 2401 | |
| 2402 /* At the start ']' and '-' mean the literal character. */ | |
| 2403 if (*regparse == ']' || *regparse == '-') | |
| 167 | 2404 { |
| 2405 startc = *regparse; | |
| 7 | 2406 regc(*regparse++); |
| 167 | 2407 } |
| 7 | 2408 |
| 2409 while (*regparse != NUL && *regparse != ']') | |
| 2410 { | |
| 2411 if (*regparse == '-') | |
| 2412 { | |
| 2413 ++regparse; | |
| 2414 /* The '-' is not used for a range at the end and | |
| 2415 * after or before a '\n'. */ | |
| 2416 if (*regparse == ']' || *regparse == NUL | |
| 2417 || startc == -1 | |
| 2418 || (regparse[0] == '\\' && regparse[1] == 'n')) | |
| 2419 { | |
| 2420 regc('-'); | |
| 2421 startc = '-'; /* [--x] is a range */ | |
| 2422 } | |
| 2423 else | |
| 2424 { | |
| 167 | 2425 /* Also accept "a-[.z.]" */ |
| 2426 endc = 0; | |
| 2427 if (*regparse == '[') | |
| 2428 endc = get_coll_element(®parse); | |
| 2429 if (endc == 0) | |
| 2430 { | |
| 7 | 2431 #ifdef FEAT_MBYTE |
| 167 | 2432 if (has_mbyte) |
| 2433 endc = mb_ptr2char_adv(®parse); | |
| 2434 else | |
| 7 | 2435 #endif |
| 167 | 2436 endc = *regparse++; |
| 2437 } | |
| 24 | 2438 |
| 2439 /* Handle \o40, \x20 and \u20AC style sequences */ | |
|
4744
a62695305e03
updated for version 7.3.1119
Bram Moolenaar <bram@vim.org>
parents:
4732
diff
changeset
|
2440 if (endc == '\\' && !reg_cpo_lit && !reg_cpo_bsl) |
| 24 | 2441 endc = coll_get_char(); |
| 2442 | |
| 7 | 2443 if (startc > endc) |
| 2444 EMSG_RET_NULL(_(e_invrange)); | |
| 2445 #ifdef FEAT_MBYTE | |
| 2446 if (has_mbyte && ((*mb_char2len)(startc) > 1 | |
| 2447 || (*mb_char2len)(endc) > 1)) | |
| 2448 { | |
| 2449 /* Limit to a range of 256 chars */ | |
| 2450 if (endc > startc + 256) | |
| 2451 EMSG_RET_NULL(_(e_invrange)); | |
| 2452 while (++startc <= endc) | |
| 2453 regmbc(startc); | |
| 2454 } | |
| 2455 else | |
| 2456 #endif | |
| 2457 { | |
| 2458 #ifdef EBCDIC | |
| 2459 int alpha_only = FALSE; | |
| 2460 | |
| 2461 /* for alphabetical range skip the gaps | |
| 2462 * 'i'-'j', 'r'-'s', 'I'-'J' and 'R'-'S'. */ | |
| 2463 if (isalpha(startc) && isalpha(endc)) | |
| 2464 alpha_only = TRUE; | |
| 2465 #endif | |
| 2466 while (++startc <= endc) | |
| 2467 #ifdef EBCDIC | |
| 2468 if (!alpha_only || isalpha(startc)) | |
| 2469 #endif | |
| 2470 regc(startc); | |
| 2471 } | |
| 2472 startc = -1; | |
| 2473 } | |
| 2474 } | |
| 2475 /* | |
| 2476 * Only "\]", "\^", "\]" and "\\" are special in Vi. Vim | |
| 2477 * accepts "\t", "\e", etc., but only when the 'l' flag in | |
| 2478 * 'cpoptions' is not included. | |
| 167 | 2479 * Posix doesn't recognize backslash at all. |
| 7 | 2480 */ |
| 2481 else if (*regparse == '\\' | |
|
4744
a62695305e03
updated for version 7.3.1119
Bram Moolenaar <bram@vim.org>
parents:
4732
diff
changeset
|
2482 && !reg_cpo_bsl |
| 7 | 2483 && (vim_strchr(REGEXP_INRANGE, regparse[1]) != NULL |
|
4744
a62695305e03
updated for version 7.3.1119
Bram Moolenaar <bram@vim.org>
parents:
4732
diff
changeset
|
2484 || (!reg_cpo_lit |
| 7 | 2485 && vim_strchr(REGEXP_ABBR, |
| 2486 regparse[1]) != NULL))) | |
| 2487 { | |
| 2488 regparse++; | |
| 2489 if (*regparse == 'n') | |
| 2490 { | |
| 2491 /* '\n' in range: also match NL */ | |
| 2492 if (ret != JUST_CALC_SIZE) | |
| 2493 { | |
| 4084 | 2494 /* Using \n inside [^] does not change what |
| 2495 * matches. "[^\n]" is the same as ".". */ | |
| 2496 if (*ret == ANYOF) | |
| 2497 { | |
| 7 | 2498 *ret = ANYOF + ADD_NL; |
| 4084 | 2499 *flagp |= HASNL; |
| 2500 } | |
| 7 | 2501 /* else: must have had a \n already */ |
| 2502 } | |
| 2503 regparse++; | |
| 2504 startc = -1; | |
| 2505 } | |
| 24 | 2506 else if (*regparse == 'd' |
| 2507 || *regparse == 'o' | |
| 2508 || *regparse == 'x' | |
| 2509 || *regparse == 'u' | |
| 2510 || *regparse == 'U') | |
| 2511 { | |
| 2512 startc = coll_get_char(); | |
| 2513 if (startc == 0) | |
| 2514 regc(0x0a); | |
| 2515 else | |
| 2516 #ifdef FEAT_MBYTE | |
| 2517 regmbc(startc); | |
| 2518 #else | |
| 2519 regc(startc); | |
| 2520 #endif | |
| 2521 } | |
| 7 | 2522 else |
| 2523 { | |
| 2524 startc = backslash_trans(*regparse++); | |
| 2525 regc(startc); | |
| 2526 } | |
| 2527 } | |
| 2528 else if (*regparse == '[') | |
| 2529 { | |
| 2530 int c_class; | |
| 2531 int cu; | |
| 2532 | |
| 167 | 2533 c_class = get_char_class(®parse); |
| 7 | 2534 startc = -1; |
| 2535 /* Characters assumed to be 8 bits! */ | |
| 2536 switch (c_class) | |
| 2537 { | |
| 2538 case CLASS_NONE: | |
| 167 | 2539 c_class = get_equi_class(®parse); |
| 2540 if (c_class != 0) | |
| 2541 { | |
| 2542 /* produce equivalence class */ | |
| 2543 reg_equi_class(c_class); | |
| 2544 } | |
| 2545 else if ((c_class = | |
| 2546 get_coll_element(®parse)) != 0) | |
| 2547 { | |
| 2548 /* produce a collating element */ | |
| 2549 regmbc(c_class); | |
| 2550 } | |
| 2551 else | |
| 2552 { | |
| 2553 /* literal '[', allow [[-x] as a range */ | |
| 2554 startc = *regparse++; | |
| 2555 regc(startc); | |
| 2556 } | |
| 7 | 2557 break; |
| 2558 case CLASS_ALNUM: | |
| 2559 for (cu = 1; cu <= 255; cu++) | |
| 2560 if (isalnum(cu)) | |
| 2561 regc(cu); | |
| 2562 break; | |
| 2563 case CLASS_ALPHA: | |
| 2564 for (cu = 1; cu <= 255; cu++) | |
| 2565 if (isalpha(cu)) | |
| 2566 regc(cu); | |
| 2567 break; | |
| 2568 case CLASS_BLANK: | |
| 2569 regc(' '); | |
| 2570 regc('\t'); | |
| 2571 break; | |
| 2572 case CLASS_CNTRL: | |
| 2573 for (cu = 1; cu <= 255; cu++) | |
| 2574 if (iscntrl(cu)) | |
| 2575 regc(cu); | |
| 2576 break; | |
| 2577 case CLASS_DIGIT: | |
| 2578 for (cu = 1; cu <= 255; cu++) | |
| 2579 if (VIM_ISDIGIT(cu)) | |
| 2580 regc(cu); | |
| 2581 break; | |
| 2582 case CLASS_GRAPH: | |
| 2583 for (cu = 1; cu <= 255; cu++) | |
| 2584 if (isgraph(cu)) | |
| 2585 regc(cu); | |
| 2586 break; | |
| 2587 case CLASS_LOWER: | |
| 2588 for (cu = 1; cu <= 255; cu++) | |
| 1347 | 2589 if (MB_ISLOWER(cu)) |
| 7 | 2590 regc(cu); |
| 2591 break; | |
| 2592 case CLASS_PRINT: | |
| 2593 for (cu = 1; cu <= 255; cu++) | |
| 2594 if (vim_isprintc(cu)) | |
| 2595 regc(cu); | |
| 2596 break; | |
| 2597 case CLASS_PUNCT: | |
| 2598 for (cu = 1; cu <= 255; cu++) | |
| 2599 if (ispunct(cu)) | |
| 2600 regc(cu); | |
| 2601 break; | |
| 2602 case CLASS_SPACE: | |
| 2603 for (cu = 9; cu <= 13; cu++) | |
| 2604 regc(cu); | |
| 2605 regc(' '); | |
| 2606 break; | |
| 2607 case CLASS_UPPER: | |
| 2608 for (cu = 1; cu <= 255; cu++) | |
| 1347 | 2609 if (MB_ISUPPER(cu)) |
| 7 | 2610 regc(cu); |
| 2611 break; | |
| 2612 case CLASS_XDIGIT: | |
| 2613 for (cu = 1; cu <= 255; cu++) | |
| 2614 if (vim_isxdigit(cu)) | |
| 2615 regc(cu); | |
| 2616 break; | |
| 2617 case CLASS_TAB: | |
| 2618 regc('\t'); | |
| 2619 break; | |
| 2620 case CLASS_RETURN: | |
| 2621 regc('\r'); | |
| 2622 break; | |
| 2623 case CLASS_BACKSPACE: | |
| 2624 regc('\b'); | |
| 2625 break; | |
| 2626 case CLASS_ESCAPE: | |
| 2627 regc('\033'); | |
| 2628 break; | |
| 2629 } | |
| 2630 } | |
| 2631 else | |
| 2632 { | |
| 2633 #ifdef FEAT_MBYTE | |
| 2634 if (has_mbyte) | |
| 2635 { | |
| 2636 int len; | |
| 2637 | |
| 2638 /* produce a multibyte character, including any | |
| 2639 * following composing characters */ | |
| 2640 startc = mb_ptr2char(regparse); | |
| 474 | 2641 len = (*mb_ptr2len)(regparse); |
| 7 | 2642 if (enc_utf8 && utf_char2len(startc) != len) |
| 2643 startc = -1; /* composing chars */ | |
| 2644 while (--len >= 0) | |
| 2645 regc(*regparse++); | |
| 2646 } | |
| 2647 else | |
| 2648 #endif | |
| 2649 { | |
| 2650 startc = *regparse++; | |
| 2651 regc(startc); | |
| 2652 } | |
| 2653 } | |
| 2654 } | |
| 2655 regc(NUL); | |
| 2656 prevchr_len = 1; /* last char was the ']' */ | |
| 2657 if (*regparse != ']') | |
| 2658 EMSG_RET_NULL(_(e_toomsbra)); /* Cannot happen? */ | |
| 2659 skipchr(); /* let's be friends with the lexer again */ | |
| 2660 *flagp |= HASWIDTH | SIMPLE; | |
| 2661 break; | |
| 2662 } | |
| 481 | 2663 else if (reg_strict) |
| 4444 | 2664 EMSG2_RET_NULL(_(e_missingbracket), reg_magic > MAGIC_OFF); |
| 7 | 2665 } |
| 2666 /* FALLTHROUGH */ | |
| 2667 | |
| 2668 default: | |
| 2669 { | |
| 2670 int len; | |
| 2671 | |
| 2672 #ifdef FEAT_MBYTE | |
| 2673 /* A multi-byte character is handled as a separate atom if it's | |
| 714 | 2674 * before a multi and when it's a composing char. */ |
| 2675 if (use_multibytecode(c)) | |
| 7 | 2676 { |
| 714 | 2677 do_multibyte: |
| 7 | 2678 ret = regnode(MULTIBYTECODE); |
| 2679 regmbc(c); | |
| 2680 *flagp |= HASWIDTH | SIMPLE; | |
| 2681 break; | |
| 2682 } | |
| 2683 #endif | |
| 2684 | |
| 2685 ret = regnode(EXACTLY); | |
| 2686 | |
| 2687 /* | |
| 2688 * Append characters as long as: | |
| 2689 * - there is no following multi, we then need the character in | |
| 2690 * front of it as a single character operand | |
| 2691 * - not running into a Magic character | |
| 2692 * - "one_exactly" is not set | |
| 2693 * But always emit at least one character. Might be a Multi, | |
| 2694 * e.g., a "[" without matching "]". | |
| 2695 */ | |
| 2696 for (len = 0; c != NUL && (len == 0 | |
| 2697 || (re_multi_type(peekchr()) == NOT_MULTI | |
| 2698 && !one_exactly | |
| 2699 && !is_Magic(c))); ++len) | |
| 2700 { | |
| 2701 c = no_Magic(c); | |
| 2702 #ifdef FEAT_MBYTE | |
| 2703 if (has_mbyte) | |
| 2704 { | |
| 2705 regmbc(c); | |
| 2706 if (enc_utf8) | |
| 2707 { | |
| 2708 int l; | |
| 2709 | |
| 714 | 2710 /* Need to get composing character too. */ |
| 7 | 2711 for (;;) |
| 2712 { | |
| 714 | 2713 l = utf_ptr2len(regparse); |
| 2714 if (!UTF_COMPOSINGLIKE(regparse, regparse + l)) | |
| 7 | 2715 break; |
| 714 | 2716 regmbc(utf_ptr2char(regparse)); |
| 2717 skipchr(); | |
| 7 | 2718 } |
| 2719 } | |
| 2720 } | |
| 2721 else | |
| 2722 #endif | |
| 2723 regc(c); | |
| 2724 c = getchr(); | |
| 2725 } | |
| 2726 ungetchr(); | |
| 2727 | |
| 2728 regc(NUL); | |
| 2729 *flagp |= HASWIDTH; | |
| 2730 if (len == 1) | |
| 2731 *flagp |= SIMPLE; | |
| 2732 } | |
| 2733 break; | |
| 2734 } | |
| 2735 | |
| 2736 return ret; | |
| 2737 } | |
| 2738 | |
| 714 | 2739 #ifdef FEAT_MBYTE |
| 2740 /* | |
| 2741 * Return TRUE if MULTIBYTECODE should be used instead of EXACTLY for | |
| 2742 * character "c". | |
| 2743 */ | |
| 2744 static int | |
| 2745 use_multibytecode(c) | |
| 2746 int c; | |
| 2747 { | |
| 2748 return has_mbyte && (*mb_char2len)(c) > 1 | |
| 2749 && (re_multi_type(peekchr()) != NOT_MULTI | |
| 2750 || (enc_utf8 && utf_iscomposing(c))); | |
| 2751 } | |
| 2752 #endif | |
| 2753 | |
| 7 | 2754 /* |
| 4444 | 2755 * Emit a node. |
| 7 | 2756 * Return pointer to generated code. |
| 2757 */ | |
| 2758 static char_u * | |
| 2759 regnode(op) | |
| 2760 int op; | |
| 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 | |
| 2780 regc(b) | |
| 2781 int b; | |
| 2782 { | |
| 2783 if (regcode == JUST_CALC_SIZE) | |
| 2784 regsize++; | |
| 2785 else | |
| 2786 *regcode++ = b; | |
| 2787 } | |
| 2788 | |
| 2789 #ifdef FEAT_MBYTE | |
| 2790 /* | |
| 2791 * Emit (if appropriate) a multi-byte character of code | |
| 2792 */ | |
| 2793 static void | |
| 2794 regmbc(c) | |
| 2795 int c; | |
| 2796 { | |
| 2974 | 2797 if (!has_mbyte && c > 0xff) |
| 2798 return; | |
| 7 | 2799 if (regcode == JUST_CALC_SIZE) |
| 2800 regsize += (*mb_char2len)(c); | |
| 2801 else | |
| 2802 regcode += (*mb_char2bytes)(c, regcode); | |
| 2803 } | |
| 2804 #endif | |
| 2805 | |
| 2806 /* | |
| 4444 | 2807 * Insert an operator in front of already-emitted operand |
| 7 | 2808 * |
| 2809 * Means relocating the operand. | |
| 2810 */ | |
| 2811 static void | |
| 2812 reginsert(op, opnd) | |
| 2813 int op; | |
| 2814 char_u *opnd; | |
| 2815 { | |
| 2816 char_u *src; | |
| 2817 char_u *dst; | |
| 2818 char_u *place; | |
| 2819 | |
| 2820 if (regcode == JUST_CALC_SIZE) | |
| 2821 { | |
| 2822 regsize += 3; | |
| 2823 return; | |
| 2824 } | |
| 2825 src = regcode; | |
| 2826 regcode += 3; | |
| 2827 dst = regcode; | |
| 2828 while (src > opnd) | |
| 2829 *--dst = *--src; | |
| 2830 | |
| 2831 place = opnd; /* Op node, where operand used to be. */ | |
| 2832 *place++ = op; | |
| 2833 *place++ = NUL; | |
| 2834 *place = NUL; | |
| 2835 } | |
| 2836 | |
| 2837 /* | |
| 4444 | 2838 * Insert an operator in front of already-emitted operand. |
|
4579
7a2be4a39423
updated for version 7.3.1037
Bram Moolenaar <bram@vim.org>
parents:
4505
diff
changeset
|
2839 * Add a number to the operator. |
|
7a2be4a39423
updated for version 7.3.1037
Bram Moolenaar <bram@vim.org>
parents:
4505
diff
changeset
|
2840 */ |
|
7a2be4a39423
updated for version 7.3.1037
Bram Moolenaar <bram@vim.org>
parents:
4505
diff
changeset
|
2841 static void |
|
7a2be4a39423
updated for version 7.3.1037
Bram Moolenaar <bram@vim.org>
parents:
4505
diff
changeset
|
2842 reginsert_nr(op, val, opnd) |
|
7a2be4a39423
updated for version 7.3.1037
Bram Moolenaar <bram@vim.org>
parents:
4505
diff
changeset
|
2843 int op; |
|
7a2be4a39423
updated for version 7.3.1037
Bram Moolenaar <bram@vim.org>
parents:
4505
diff
changeset
|
2844 long val; |
|
7a2be4a39423
updated for version 7.3.1037
Bram Moolenaar <bram@vim.org>
parents:
4505
diff
changeset
|
2845 char_u *opnd; |
|
7a2be4a39423
updated for version 7.3.1037
Bram Moolenaar <bram@vim.org>
parents:
4505
diff
changeset
|
2846 { |
|
7a2be4a39423
updated for version 7.3.1037
Bram Moolenaar <bram@vim.org>
parents:
4505
diff
changeset
|
2847 char_u *src; |
|
7a2be4a39423
updated for version 7.3.1037
Bram Moolenaar <bram@vim.org>
parents:
4505
diff
changeset
|
2848 char_u *dst; |
|
7a2be4a39423
updated for version 7.3.1037
Bram Moolenaar <bram@vim.org>
parents:
4505
diff
changeset
|
2849 char_u *place; |
|
7a2be4a39423
updated for version 7.3.1037
Bram Moolenaar <bram@vim.org>
parents:
4505
diff
changeset
|
2850 |
|
7a2be4a39423
updated for version 7.3.1037
Bram Moolenaar <bram@vim.org>
parents:
4505
diff
changeset
|
2851 if (regcode == JUST_CALC_SIZE) |
|
7a2be4a39423
updated for version 7.3.1037
Bram Moolenaar <bram@vim.org>
parents:
4505
diff
changeset
|
2852 { |
|
7a2be4a39423
updated for version 7.3.1037
Bram Moolenaar <bram@vim.org>
parents:
4505
diff
changeset
|
2853 regsize += 7; |
|
7a2be4a39423
updated for version 7.3.1037
Bram Moolenaar <bram@vim.org>
parents:
4505
diff
changeset
|
2854 return; |
|
7a2be4a39423
updated for version 7.3.1037
Bram Moolenaar <bram@vim.org>
parents:
4505
diff
changeset
|
2855 } |
|
7a2be4a39423
updated for version 7.3.1037
Bram Moolenaar <bram@vim.org>
parents:
4505
diff
changeset
|
2856 src = regcode; |
|
7a2be4a39423
updated for version 7.3.1037
Bram Moolenaar <bram@vim.org>
parents:
4505
diff
changeset
|
2857 regcode += 7; |
|
7a2be4a39423
updated for version 7.3.1037
Bram Moolenaar <bram@vim.org>
parents:
4505
diff
changeset
|
2858 dst = regcode; |
|
7a2be4a39423
updated for version 7.3.1037
Bram Moolenaar <bram@vim.org>
parents:
4505
diff
changeset
|
2859 while (src > opnd) |
|
7a2be4a39423
updated for version 7.3.1037
Bram Moolenaar <bram@vim.org>
parents:
4505
diff
changeset
|
2860 *--dst = *--src; |
|
7a2be4a39423
updated for version 7.3.1037
Bram Moolenaar <bram@vim.org>
parents:
4505
diff
changeset
|
2861 |
|
7a2be4a39423
updated for version 7.3.1037
Bram Moolenaar <bram@vim.org>
parents:
4505
diff
changeset
|
2862 place = opnd; /* Op node, where operand used to be. */ |
|
7a2be4a39423
updated for version 7.3.1037
Bram Moolenaar <bram@vim.org>
parents:
4505
diff
changeset
|
2863 *place++ = op; |
|
7a2be4a39423
updated for version 7.3.1037
Bram Moolenaar <bram@vim.org>
parents:
4505
diff
changeset
|
2864 *place++ = NUL; |
|
7a2be4a39423
updated for version 7.3.1037
Bram Moolenaar <bram@vim.org>
parents:
4505
diff
changeset
|
2865 *place++ = NUL; |
|
7a2be4a39423
updated for version 7.3.1037
Bram Moolenaar <bram@vim.org>
parents:
4505
diff
changeset
|
2866 place = re_put_long(place, (long_u)val); |
|
7a2be4a39423
updated for version 7.3.1037
Bram Moolenaar <bram@vim.org>
parents:
4505
diff
changeset
|
2867 } |
|
7a2be4a39423
updated for version 7.3.1037
Bram Moolenaar <bram@vim.org>
parents:
4505
diff
changeset
|
2868 |
|
7a2be4a39423
updated for version 7.3.1037
Bram Moolenaar <bram@vim.org>
parents:
4505
diff
changeset
|
2869 /* |
|
7a2be4a39423
updated for version 7.3.1037
Bram Moolenaar <bram@vim.org>
parents:
4505
diff
changeset
|
2870 * Insert an operator in front of already-emitted operand. |
| 7 | 2871 * The operator has the given limit values as operands. Also set next pointer. |
| 2872 * | |
| 2873 * Means relocating the operand. | |
| 2874 */ | |
| 2875 static void | |
| 2876 reginsert_limits(op, minval, maxval, opnd) | |
| 2877 int op; | |
| 2878 long minval; | |
| 2879 long maxval; | |
| 2880 char_u *opnd; | |
| 2881 { | |
| 2882 char_u *src; | |
| 2883 char_u *dst; | |
| 2884 char_u *place; | |
| 2885 | |
| 2886 if (regcode == JUST_CALC_SIZE) | |
| 2887 { | |
| 2888 regsize += 11; | |
| 2889 return; | |
| 2890 } | |
| 2891 src = regcode; | |
| 2892 regcode += 11; | |
| 2893 dst = regcode; | |
| 2894 while (src > opnd) | |
| 2895 *--dst = *--src; | |
| 2896 | |
| 2897 place = opnd; /* Op node, where operand used to be. */ | |
| 2898 *place++ = op; | |
| 2899 *place++ = NUL; | |
| 2900 *place++ = NUL; | |
| 2901 place = re_put_long(place, (long_u)minval); | |
| 2902 place = re_put_long(place, (long_u)maxval); | |
| 2903 regtail(opnd, place); | |
| 2904 } | |
| 2905 | |
| 2906 /* | |
| 2907 * Write a long as four bytes at "p" and return pointer to the next char. | |
| 2908 */ | |
| 2909 static char_u * | |
| 2910 re_put_long(p, val) | |
| 2911 char_u *p; | |
| 2912 long_u val; | |
| 2913 { | |
| 2914 *p++ = (char_u) ((val >> 24) & 0377); | |
| 2915 *p++ = (char_u) ((val >> 16) & 0377); | |
| 2916 *p++ = (char_u) ((val >> 8) & 0377); | |
| 2917 *p++ = (char_u) (val & 0377); | |
| 2918 return p; | |
| 2919 } | |
| 2920 | |
| 2921 /* | |
| 4444 | 2922 * Set the next-pointer at the end of a node chain. |
| 7 | 2923 */ |
| 2924 static void | |
| 2925 regtail(p, val) | |
| 2926 char_u *p; | |
| 2927 char_u *val; | |
| 2928 { | |
| 2929 char_u *scan; | |
| 2930 char_u *temp; | |
| 2931 int offset; | |
| 2932 | |
| 2933 if (p == JUST_CALC_SIZE) | |
| 2934 return; | |
| 2935 | |
| 2936 /* Find last node. */ | |
| 2937 scan = p; | |
| 2938 for (;;) | |
| 2939 { | |
| 2940 temp = regnext(scan); | |
| 2941 if (temp == NULL) | |
| 2942 break; | |
| 2943 scan = temp; | |
| 2944 } | |
| 2945 | |
| 233 | 2946 if (OP(scan) == BACK) |
| 7 | 2947 offset = (int)(scan - val); |
| 2948 else | |
| 2949 offset = (int)(val - scan); | |
| 2010 | 2950 /* When the offset uses more than 16 bits it can no longer fit in the two |
| 2974 | 2951 * bytes available. Use a global flag to avoid having to check return |
| 2010 | 2952 * values in too many places. */ |
| 2953 if (offset > 0xffff) | |
| 2954 reg_toolong = TRUE; | |
| 2955 else | |
| 2956 { | |
| 2957 *(scan + 1) = (char_u) (((unsigned)offset >> 8) & 0377); | |
| 2958 *(scan + 2) = (char_u) (offset & 0377); | |
| 2959 } | |
| 7 | 2960 } |
| 2961 | |
| 2962 /* | |
| 4444 | 2963 * Like regtail, on item after a BRANCH; nop if none. |
| 7 | 2964 */ |
| 2965 static void | |
| 2966 regoptail(p, val) | |
| 2967 char_u *p; | |
| 2968 char_u *val; | |
| 2969 { | |
| 2970 /* When op is neither BRANCH nor BRACE_COMPLEX0-9, it is "operandless" */ | |
| 2971 if (p == NULL || p == JUST_CALC_SIZE | |
| 2972 || (OP(p) != BRANCH | |
| 2973 && (OP(p) < BRACE_COMPLEX || OP(p) > BRACE_COMPLEX + 9))) | |
| 2974 return; | |
| 2975 regtail(OPERAND(p), val); | |
| 2976 } | |
| 2977 | |
| 2978 /* | |
| 4444 | 2979 * Functions for getting characters from the regexp input. |
| 7 | 2980 */ |
| 2981 | |
| 2982 static int at_start; /* True when on the first character */ | |
| 2983 static int prev_at_start; /* True when on the second character */ | |
| 2984 | |
| 4444 | 2985 /* |
| 2986 * Start parsing at "str". | |
| 2987 */ | |
| 7 | 2988 static void |
| 2989 initchr(str) | |
| 2990 char_u *str; | |
| 2991 { | |
| 2992 regparse = str; | |
| 2993 prevchr_len = 0; | |
| 2994 curchr = prevprevchr = prevchr = nextchr = -1; | |
| 2995 at_start = TRUE; | |
| 2996 prev_at_start = FALSE; | |
| 2997 } | |
| 2998 | |
| 4444 | 2999 /* |
|
4679
4d92b873acef
updated for version 7.3.1087
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
3000 * Save the current parse state, so that it can be restored and parsing |
|
4d92b873acef
updated for version 7.3.1087
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
3001 * starts in the same state again. |
|
4d92b873acef
updated for version 7.3.1087
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
3002 */ |
|
4d92b873acef
updated for version 7.3.1087
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
3003 static void |
|
4d92b873acef
updated for version 7.3.1087
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
3004 save_parse_state(ps) |
|
4d92b873acef
updated for version 7.3.1087
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
3005 parse_state_T *ps; |
|
4d92b873acef
updated for version 7.3.1087
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
3006 { |
|
4d92b873acef
updated for version 7.3.1087
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
3007 ps->regparse = regparse; |
|
4d92b873acef
updated for version 7.3.1087
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
3008 ps->prevchr_len = prevchr_len; |
|
4d92b873acef
updated for version 7.3.1087
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
3009 ps->curchr = curchr; |
|
4d92b873acef
updated for version 7.3.1087
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
3010 ps->prevchr = prevchr; |
|
4d92b873acef
updated for version 7.3.1087
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
3011 ps->prevprevchr = prevprevchr; |
|
4d92b873acef
updated for version 7.3.1087
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
3012 ps->nextchr = nextchr; |
|
4d92b873acef
updated for version 7.3.1087
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
3013 ps->at_start = at_start; |
|
4d92b873acef
updated for version 7.3.1087
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
3014 ps->prev_at_start = prev_at_start; |
|
4d92b873acef
updated for version 7.3.1087
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
3015 ps->regnpar = regnpar; |
|
4d92b873acef
updated for version 7.3.1087
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
3016 } |
|
4d92b873acef
updated for version 7.3.1087
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
3017 |
|
4d92b873acef
updated for version 7.3.1087
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
3018 /* |
|
4d92b873acef
updated for version 7.3.1087
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
3019 * Restore a previously saved parse state. |
|
4d92b873acef
updated for version 7.3.1087
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
3020 */ |
|
4d92b873acef
updated for version 7.3.1087
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
3021 static void |
|
4d92b873acef
updated for version 7.3.1087
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
3022 restore_parse_state(ps) |
|
4d92b873acef
updated for version 7.3.1087
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
3023 parse_state_T *ps; |
|
4d92b873acef
updated for version 7.3.1087
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
3024 { |
|
4d92b873acef
updated for version 7.3.1087
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
3025 regparse = ps->regparse; |
|
4d92b873acef
updated for version 7.3.1087
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
3026 prevchr_len = ps->prevchr_len; |
|
4d92b873acef
updated for version 7.3.1087
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
3027 curchr = ps->curchr; |
|
4d92b873acef
updated for version 7.3.1087
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
3028 prevchr = ps->prevchr; |
|
4d92b873acef
updated for version 7.3.1087
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
3029 prevprevchr = ps->prevprevchr; |
|
4d92b873acef
updated for version 7.3.1087
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
3030 nextchr = ps->nextchr; |
|
4d92b873acef
updated for version 7.3.1087
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
3031 at_start = ps->at_start; |
|
4d92b873acef
updated for version 7.3.1087
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
3032 prev_at_start = ps->prev_at_start; |
|
4d92b873acef
updated for version 7.3.1087
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
3033 regnpar = ps->regnpar; |
|
4d92b873acef
updated for version 7.3.1087
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
3034 } |
|
4d92b873acef
updated for version 7.3.1087
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
3035 |
|
4d92b873acef
updated for version 7.3.1087
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
3036 |
|
4d92b873acef
updated for version 7.3.1087
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
3037 /* |
| 4444 | 3038 * Get the next character without advancing. |
| 3039 */ | |
| 7 | 3040 static int |
| 3041 peekchr() | |
| 3042 { | |
| 167 | 3043 static int after_slash = FALSE; |
| 3044 | |
| 7 | 3045 if (curchr == -1) |
| 3046 { | |
| 3047 switch (curchr = regparse[0]) | |
| 3048 { | |
| 3049 case '.': | |
| 3050 case '[': | |
| 3051 case '~': | |
| 3052 /* magic when 'magic' is on */ | |
| 3053 if (reg_magic >= MAGIC_ON) | |
| 3054 curchr = Magic(curchr); | |
| 3055 break; | |
| 3056 case '(': | |
| 3057 case ')': | |
| 3058 case '{': | |
| 3059 case '%': | |
| 3060 case '+': | |
| 3061 case '=': | |
| 3062 case '?': | |
| 3063 case '@': | |
| 3064 case '!': | |
| 3065 case '&': | |
| 3066 case '|': | |
| 3067 case '<': | |
| 3068 case '>': | |
| 3069 case '#': /* future ext. */ | |
| 3070 case '"': /* future ext. */ | |
| 3071 case '\'': /* future ext. */ | |
| 3072 case ',': /* future ext. */ | |
| 3073 case '-': /* future ext. */ | |
| 3074 case ':': /* future ext. */ | |
| 3075 case ';': /* future ext. */ | |
| 3076 case '`': /* future ext. */ | |
| 3077 case '/': /* Can't be used in / command */ | |
| 3078 /* magic only after "\v" */ | |
| 3079 if (reg_magic == MAGIC_ALL) | |
| 3080 curchr = Magic(curchr); | |
| 3081 break; | |
| 3082 case '*': | |
| 167 | 3083 /* * is not magic as the very first character, eg "?*ptr", when |
| 3084 * after '^', eg "/^*ptr" and when after "\(", "\|", "\&". But | |
| 3085 * "\(\*" is not magic, thus must be magic if "after_slash" */ | |
| 3086 if (reg_magic >= MAGIC_ON | |
| 3087 && !at_start | |
| 3088 && !(prev_at_start && prevchr == Magic('^')) | |
| 3089 && (after_slash | |
| 3090 || (prevchr != Magic('(') | |
| 3091 && prevchr != Magic('&') | |
| 3092 && prevchr != Magic('|')))) | |
| 7 | 3093 curchr = Magic('*'); |
| 3094 break; | |
| 3095 case '^': | |
| 3096 /* '^' is only magic as the very first character and if it's after | |
| 3097 * "\(", "\|", "\&' or "\n" */ | |
| 3098 if (reg_magic >= MAGIC_OFF | |
| 3099 && (at_start | |
| 3100 || reg_magic == MAGIC_ALL | |
| 3101 || prevchr == Magic('(') | |
| 3102 || prevchr == Magic('|') | |
| 3103 || prevchr == Magic('&') | |
| 3104 || prevchr == Magic('n') | |
| 3105 || (no_Magic(prevchr) == '(' | |
| 3106 && prevprevchr == Magic('%')))) | |
| 3107 { | |
| 3108 curchr = Magic('^'); | |
| 3109 at_start = TRUE; | |
| 3110 prev_at_start = FALSE; | |
| 3111 } | |
| 3112 break; | |
| 3113 case '$': | |
| 3114 /* '$' is only magic as the very last char and if it's in front of | |
| 3115 * either "\|", "\)", "\&", or "\n" */ | |
| 3116 if (reg_magic >= MAGIC_OFF) | |
| 3117 { | |
| 3118 char_u *p = regparse + 1; | |
| 6041 | 3119 int is_magic_all = (reg_magic == MAGIC_ALL); |
| 3120 | |
| 3121 /* ignore \c \C \m \M \v \V and \Z after '$' */ | |
| 7 | 3122 while (p[0] == '\\' && (p[1] == 'c' || p[1] == 'C' |
| 6041 | 3123 || p[1] == 'm' || p[1] == 'M' |
| 3124 || p[1] == 'v' || p[1] == 'V' || p[1] == 'Z')) | |
| 3125 { | |
| 3126 if (p[1] == 'v') | |
| 3127 is_magic_all = TRUE; | |
| 3128 else if (p[1] == 'm' || p[1] == 'M' || p[1] == 'V') | |
| 3129 is_magic_all = FALSE; | |
| 7 | 3130 p += 2; |
| 6041 | 3131 } |
| 7 | 3132 if (p[0] == NUL |
| 3133 || (p[0] == '\\' | |
| 3134 && (p[1] == '|' || p[1] == '&' || p[1] == ')' | |
| 3135 || p[1] == 'n')) | |
| 6041 | 3136 || (is_magic_all |
| 3137 && (p[0] == '|' || p[0] == '&' || p[0] == ')')) | |
| 7 | 3138 || reg_magic == MAGIC_ALL) |
| 3139 curchr = Magic('$'); | |
| 3140 } | |
| 3141 break; | |
| 3142 case '\\': | |
| 3143 { | |
| 3144 int c = regparse[1]; | |
| 3145 | |
| 3146 if (c == NUL) | |
| 3147 curchr = '\\'; /* trailing '\' */ | |
| 3148 else if ( | |
| 3149 #ifdef EBCDIC | |
| 3150 vim_strchr(META, c) | |
| 3151 #else | |
| 3152 c <= '~' && META_flags[c] | |
| 3153 #endif | |
| 3154 ) | |
| 3155 { | |
| 3156 /* | |
| 3157 * META contains everything that may be magic sometimes, | |
| 3158 * except ^ and $ ("\^" and "\$" are only magic after | |
| 3159 * "\v"). We now fetch the next character and toggle its | |
| 3160 * magicness. Therefore, \ is so meta-magic that it is | |
| 3161 * not in META. | |
| 3162 */ | |
| 3163 curchr = -1; | |
| 3164 prev_at_start = at_start; | |
| 3165 at_start = FALSE; /* be able to say "/\*ptr" */ | |
| 3166 ++regparse; | |
| 167 | 3167 ++after_slash; |
| 7 | 3168 peekchr(); |
| 3169 --regparse; | |
| 167 | 3170 --after_slash; |
| 7 | 3171 curchr = toggle_Magic(curchr); |
| 3172 } | |
| 3173 else if (vim_strchr(REGEXP_ABBR, c)) | |
| 3174 { | |
| 3175 /* | |
| 3176 * Handle abbreviations, like "\t" for TAB -- webb | |
| 3177 */ | |
| 3178 curchr = backslash_trans(c); | |
| 3179 } | |
| 3180 else if (reg_magic == MAGIC_NONE && (c == '$' || c == '^')) | |
| 3181 curchr = toggle_Magic(c); | |
| 3182 else | |
| 3183 { | |
| 3184 /* | |
| 3185 * Next character can never be (made) magic? | |
| 3186 * Then backslashing it won't do anything. | |
| 3187 */ | |
| 3188 #ifdef FEAT_MBYTE | |
| 3189 if (has_mbyte) | |
| 3190 curchr = (*mb_ptr2char)(regparse + 1); | |
| 3191 else | |
| 3192 #endif | |
| 3193 curchr = c; | |
| 3194 } | |
| 3195 break; | |
| 3196 } | |
| 3197 | |
| 3198 #ifdef FEAT_MBYTE | |
| 3199 default: | |
| 3200 if (has_mbyte) | |
| 3201 curchr = (*mb_ptr2char)(regparse); | |
| 3202 #endif | |
| 3203 } | |
| 3204 } | |
| 3205 | |
| 3206 return curchr; | |
| 3207 } | |
| 3208 | |
| 3209 /* | |
| 3210 * Eat one lexed character. Do this in a way that we can undo it. | |
| 3211 */ | |
| 3212 static void | |
| 3213 skipchr() | |
| 3214 { | |
| 3215 /* peekchr() eats a backslash, do the same here */ | |
| 3216 if (*regparse == '\\') | |
| 3217 prevchr_len = 1; | |
| 3218 else | |
| 3219 prevchr_len = 0; | |
| 3220 if (regparse[prevchr_len] != NUL) | |
| 3221 { | |
| 3222 #ifdef FEAT_MBYTE | |
| 714 | 3223 if (enc_utf8) |
| 1449 | 3224 /* exclude composing chars that mb_ptr2len does include */ |
| 3225 prevchr_len += utf_ptr2len(regparse + prevchr_len); | |
| 714 | 3226 else if (has_mbyte) |
| 474 | 3227 prevchr_len += (*mb_ptr2len)(regparse + prevchr_len); |
| 7 | 3228 else |
| 3229 #endif | |
| 3230 ++prevchr_len; | |
| 3231 } | |
| 3232 regparse += prevchr_len; | |
| 3233 prev_at_start = at_start; | |
| 3234 at_start = FALSE; | |
| 3235 prevprevchr = prevchr; | |
| 3236 prevchr = curchr; | |
| 3237 curchr = nextchr; /* use previously unget char, or -1 */ | |
| 3238 nextchr = -1; | |
| 3239 } | |
| 3240 | |
| 3241 /* | |
| 3242 * Skip a character while keeping the value of prev_at_start for at_start. | |
| 3243 * prevchr and prevprevchr are also kept. | |
| 3244 */ | |
| 3245 static void | |
| 3246 skipchr_keepstart() | |
| 3247 { | |
| 3248 int as = prev_at_start; | |
| 3249 int pr = prevchr; | |
| 3250 int prpr = prevprevchr; | |
| 3251 | |
| 3252 skipchr(); | |
| 3253 at_start = as; | |
| 3254 prevchr = pr; | |
| 3255 prevprevchr = prpr; | |
| 3256 } | |
| 3257 | |
| 4444 | 3258 /* |
| 3259 * Get the next character from the pattern. We know about magic and such, so | |
| 3260 * therefore we need a lexical analyzer. | |
| 3261 */ | |
| 7 | 3262 static int |
| 3263 getchr() | |
| 3264 { | |
| 3265 int chr = peekchr(); | |
| 3266 | |
| 3267 skipchr(); | |
| 3268 return chr; | |
| 3269 } | |
| 3270 | |
| 3271 /* | |
| 3272 * put character back. Works only once! | |
| 3273 */ | |
| 3274 static void | |
| 3275 ungetchr() | |
| 3276 { | |
| 3277 nextchr = curchr; | |
| 3278 curchr = prevchr; | |
| 3279 prevchr = prevprevchr; | |
| 3280 at_start = prev_at_start; | |
| 3281 prev_at_start = FALSE; | |
| 3282 | |
| 3283 /* Backup regparse, so that it's at the same position as before the | |
| 3284 * getchr(). */ | |
| 3285 regparse -= prevchr_len; | |
| 3286 } | |
| 3287 | |
| 3288 /* | |
| 29 | 3289 * Get and return the value of the hex string at the current position. |
| 3290 * Return -1 if there is no valid hex number. | |
| 3291 * The position is updated: | |
| 24 | 3292 * blahblah\%x20asdf |
| 856 | 3293 * before-^ ^-after |
| 24 | 3294 * The parameter controls the maximum number of input characters. This will be |
| 3295 * 2 when reading a \%x20 sequence and 4 when reading a \%u20AC sequence. | |
| 3296 */ | |
| 3297 static int | |
| 3298 gethexchrs(maxinputlen) | |
| 3299 int maxinputlen; | |
| 3300 { | |
| 3301 int nr = 0; | |
| 3302 int c; | |
| 3303 int i; | |
| 3304 | |
| 3305 for (i = 0; i < maxinputlen; ++i) | |
| 3306 { | |
| 3307 c = regparse[0]; | |
| 3308 if (!vim_isxdigit(c)) | |
| 3309 break; | |
| 3310 nr <<= 4; | |
| 3311 nr |= hex2nr(c); | |
| 3312 ++regparse; | |
| 3313 } | |
| 3314 | |
| 3315 if (i == 0) | |
| 3316 return -1; | |
| 3317 return nr; | |
| 3318 } | |
| 3319 | |
| 3320 /* | |
|
4579
7a2be4a39423
updated for version 7.3.1037
Bram Moolenaar <bram@vim.org>
parents:
4505
diff
changeset
|
3321 * Get and return the value of the decimal string immediately after the |
| 24 | 3322 * current position. Return -1 for invalid. Consumes all digits. |
| 3323 */ | |
| 3324 static int | |
| 3325 getdecchrs() | |
| 3326 { | |
| 3327 int nr = 0; | |
| 3328 int c; | |
| 3329 int i; | |
| 3330 | |
| 3331 for (i = 0; ; ++i) | |
| 3332 { | |
| 3333 c = regparse[0]; | |
| 3334 if (c < '0' || c > '9') | |
| 3335 break; | |
| 3336 nr *= 10; | |
| 3337 nr += c - '0'; | |
| 3338 ++regparse; | |
|
4579
7a2be4a39423
updated for version 7.3.1037
Bram Moolenaar <bram@vim.org>
parents:
4505
diff
changeset
|
3339 curchr = -1; /* no longer valid */ |
| 24 | 3340 } |
| 3341 | |
| 3342 if (i == 0) | |
| 3343 return -1; | |
| 3344 return nr; | |
| 3345 } | |
| 3346 | |
| 3347 /* | |
| 3348 * get and return the value of the octal string immediately after the current | |
| 3349 * position. Return -1 for invalid, or 0-255 for valid. Smart enough to handle | |
| 3350 * numbers > 377 correctly (for example, 400 is treated as 40) and doesn't | |
| 3351 * treat 8 or 9 as recognised characters. Position is updated: | |
| 3352 * blahblah\%o210asdf | |
| 856 | 3353 * before-^ ^-after |
| 24 | 3354 */ |
| 3355 static int | |
| 3356 getoctchrs() | |
| 3357 { | |
| 3358 int nr = 0; | |
| 3359 int c; | |
| 3360 int i; | |
| 3361 | |
| 3362 for (i = 0; i < 3 && nr < 040; ++i) | |
| 3363 { | |
| 3364 c = regparse[0]; | |
| 3365 if (c < '0' || c > '7') | |
| 3366 break; | |
| 3367 nr <<= 3; | |
| 3368 nr |= hex2nr(c); | |
| 3369 ++regparse; | |
| 3370 } | |
| 3371 | |
| 3372 if (i == 0) | |
| 3373 return -1; | |
| 3374 return nr; | |
| 3375 } | |
| 3376 | |
| 3377 /* | |
| 3378 * Get a number after a backslash that is inside []. | |
| 3379 * When nothing is recognized return a backslash. | |
| 3380 */ | |
| 3381 static int | |
| 3382 coll_get_char() | |
| 3383 { | |
| 3384 int nr = -1; | |
| 3385 | |
| 3386 switch (*regparse++) | |
| 3387 { | |
| 3388 case 'd': nr = getdecchrs(); break; | |
| 3389 case 'o': nr = getoctchrs(); break; | |
| 3390 case 'x': nr = gethexchrs(2); break; | |
| 3391 case 'u': nr = gethexchrs(4); break; | |
| 3392 case 'U': nr = gethexchrs(8); break; | |
| 3393 } | |
| 3394 if (nr < 0) | |
| 3395 { | |
| 3396 /* If getting the number fails be backwards compatible: the character | |
| 3397 * is a backslash. */ | |
| 3398 --regparse; | |
| 3399 nr = '\\'; | |
| 3400 } | |
| 3401 return nr; | |
| 3402 } | |
| 3403 | |
| 3404 /* | |
| 7 | 3405 * read_limits - Read two integers to be taken as a minimum and maximum. |
| 3406 * If the first character is '-', then the range is reversed. | |
| 3407 * Should end with 'end'. If minval is missing, zero is default, if maxval is | |
| 3408 * missing, a very big number is the default. | |
| 3409 */ | |
| 3410 static int | |
| 3411 read_limits(minval, maxval) | |
| 3412 long *minval; | |
| 3413 long *maxval; | |
| 3414 { | |
| 3415 int reverse = FALSE; | |
| 3416 char_u *first_char; | |
| 3417 long tmp; | |
| 3418 | |
| 3419 if (*regparse == '-') | |
| 3420 { | |
| 3421 /* Starts with '-', so reverse the range later */ | |
| 3422 regparse++; | |
| 3423 reverse = TRUE; | |
| 3424 } | |
| 3425 first_char = regparse; | |
| 3426 *minval = getdigits(®parse); | |
| 3427 if (*regparse == ',') /* There is a comma */ | |
| 3428 { | |
| 3429 if (vim_isdigit(*++regparse)) | |
| 3430 *maxval = getdigits(®parse); | |
| 3431 else | |
| 3432 *maxval = MAX_LIMIT; | |
| 3433 } | |
| 3434 else if (VIM_ISDIGIT(*first_char)) | |
| 3435 *maxval = *minval; /* It was \{n} or \{-n} */ | |
| 3436 else | |
| 3437 *maxval = MAX_LIMIT; /* It was \{} or \{-} */ | |
| 3438 if (*regparse == '\\') | |
| 3439 regparse++; /* Allow either \{...} or \{...\} */ | |
| 167 | 3440 if (*regparse != '}') |
| 7 | 3441 { |
| 3442 sprintf((char *)IObuff, _("E554: Syntax error in %s{...}"), | |
| 3443 reg_magic == MAGIC_ALL ? "" : "\\"); | |
| 3444 EMSG_RET_FAIL(IObuff); | |
| 3445 } | |
| 3446 | |
| 3447 /* | |
| 3448 * Reverse the range if there was a '-', or make sure it is in the right | |
| 3449 * order otherwise. | |
| 3450 */ | |
| 3451 if ((!reverse && *minval > *maxval) || (reverse && *minval < *maxval)) | |
| 3452 { | |
| 3453 tmp = *minval; | |
| 3454 *minval = *maxval; | |
| 3455 *maxval = tmp; | |
| 3456 } | |
| 3457 skipchr(); /* let's be friends with the lexer again */ | |
| 3458 return OK; | |
| 3459 } | |
| 3460 | |
| 3461 /* | |
| 3462 * vim_regexec and friends | |
| 3463 */ | |
| 3464 | |
| 3465 /* | |
| 3466 * Global work variables for vim_regexec(). | |
| 3467 */ | |
| 3468 | |
| 3469 /* The current match-position is remembered with these variables: */ | |
| 3470 static linenr_T reglnum; /* line number, relative to first line */ | |
| 3471 static char_u *regline; /* start of current line */ | |
| 3472 static char_u *reginput; /* current input, points into "regline" */ | |
| 3473 | |
| 3474 static int need_clear_subexpr; /* subexpressions still need to be | |
| 3475 * cleared */ | |
| 3476 #ifdef FEAT_SYN_HL | |
| 3477 static int need_clear_zsubexpr = FALSE; /* extmatch subexpressions | |
| 3478 * still need to be cleared */ | |
| 3479 #endif | |
| 3480 | |
| 3481 /* | |
| 3482 * Structure used to save the current input state, when it needs to be | |
| 3483 * restored after trying a match. Used by reg_save() and reg_restore(). | |
| 233 | 3484 * Also stores the length of "backpos". |
| 7 | 3485 */ |
| 3486 typedef struct | |
| 3487 { | |
| 3488 union | |
| 3489 { | |
| 3490 char_u *ptr; /* reginput pointer, for single-line regexp */ | |
| 3491 lpos_T pos; /* reginput pos, for multi-line regexp */ | |
| 3492 } rs_u; | |
| 233 | 3493 int rs_len; |
| 7 | 3494 } regsave_T; |
| 3495 | |
| 3496 /* struct to save start/end pointer/position in for \(\) */ | |
| 3497 typedef struct | |
| 3498 { | |
| 3499 union | |
| 3500 { | |
| 3501 char_u *ptr; | |
| 3502 lpos_T pos; | |
| 3503 } se_u; | |
| 3504 } save_se_T; | |
| 3505 | |
| 1579 | 3506 /* used for BEHIND and NOBEHIND matching */ |
| 3507 typedef struct regbehind_S | |
| 3508 { | |
| 3509 regsave_T save_after; | |
| 3510 regsave_T save_behind; | |
| 1602 | 3511 int save_need_clear_subexpr; |
| 1579 | 3512 save_se_T save_start[NSUBEXP]; |
| 3513 save_se_T save_end[NSUBEXP]; | |
| 3514 } regbehind_T; | |
| 3515 | |
| 7 | 3516 static char_u *reg_getline __ARGS((linenr_T lnum)); |
| 4444 | 3517 static long bt_regexec_both __ARGS((char_u *line, colnr_T col, proftime_T *tm)); |
| 3518 static long regtry __ARGS((bt_regprog_T *prog, colnr_T col)); | |
| 7 | 3519 static void cleanup_subexpr __ARGS((void)); |
| 3520 #ifdef FEAT_SYN_HL | |
| 3521 static void cleanup_zsubexpr __ARGS((void)); | |
| 3522 #endif | |
| 1579 | 3523 static void save_subexpr __ARGS((regbehind_T *bp)); |
| 3524 static void restore_subexpr __ARGS((regbehind_T *bp)); | |
| 7 | 3525 static void reg_nextline __ARGS((void)); |
| 233 | 3526 static void reg_save __ARGS((regsave_T *save, garray_T *gap)); |
| 3527 static void reg_restore __ARGS((regsave_T *save, garray_T *gap)); | |
| 7 | 3528 static int reg_save_equal __ARGS((regsave_T *save)); |
| 3529 static void save_se_multi __ARGS((save_se_T *savep, lpos_T *posp)); | |
| 3530 static void save_se_one __ARGS((save_se_T *savep, char_u **pp)); | |
| 3531 | |
| 3532 /* Save the sub-expressions before attempting a match. */ | |
| 3533 #define save_se(savep, posp, pp) \ | |
| 3534 REG_MULTI ? save_se_multi((savep), (posp)) : save_se_one((savep), (pp)) | |
| 3535 | |
| 3536 /* After a failed match restore the sub-expressions. */ | |
| 3537 #define restore_se(savep, posp, pp) { \ | |
| 3538 if (REG_MULTI) \ | |
| 3539 *(posp) = (savep)->se_u.pos; \ | |
| 3540 else \ | |
| 3541 *(pp) = (savep)->se_u.ptr; } | |
| 3542 | |
| 3543 static int re_num_cmp __ARGS((long_u val, char_u *scan)); | |
|
4891
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
3544 static int match_with_backref __ARGS((linenr_T start_lnum, colnr_T start_col, linenr_T end_lnum, colnr_T end_col, int *bytelen)); |
| 180 | 3545 static int regmatch __ARGS((char_u *prog)); |
| 7 | 3546 static int regrepeat __ARGS((char_u *p, long maxcount)); |
| 3547 | |
| 3548 #ifdef DEBUG | |
| 3549 int regnarrate = 0; | |
| 3550 #endif | |
| 3551 | |
| 3552 /* | |
| 3553 * Internal copy of 'ignorecase'. It is set at each call to vim_regexec(). | |
| 3554 * Normally it gets the value of "rm_ic" or "rmm_ic", but when the pattern | |
| 3555 * contains '\c' or '\C' the value is overruled. | |
| 3556 */ | |
| 3557 static int ireg_ic; | |
| 3558 | |
| 3559 #ifdef FEAT_MBYTE | |
| 3560 /* | |
| 3561 * Similar to ireg_ic, but only for 'combining' characters. Set with \Z flag | |
| 3562 * in the regexp. Defaults to false, always. | |
| 3563 */ | |
| 3564 static int ireg_icombine; | |
| 3565 #endif | |
| 3566 | |
| 3567 /* | |
| 410 | 3568 * Copy of "rmm_maxcol": maximum column to search for a match. Zero when |
| 3569 * there is no maximum. | |
| 3570 */ | |
| 418 | 3571 static colnr_T ireg_maxcol; |
| 410 | 3572 |
| 3573 /* | |
| 7 | 3574 * Sometimes need to save a copy of a line. Since alloc()/free() is very |
| 3575 * slow, we keep one allocated piece of memory and only re-allocate it when | |
| 4444 | 3576 * it's too small. It's freed in bt_regexec_both() when finished. |
| 7 | 3577 */ |
| 1468 | 3578 static char_u *reg_tofree = NULL; |
| 7 | 3579 static unsigned reg_tofreelen; |
| 3580 | |
| 3581 /* | |
| 3582 * These variables are set when executing a regexp to speed up the execution. | |
| 1209 | 3583 * Which ones are set depends on whether a single-line or multi-line match is |
| 7 | 3584 * done: |
| 3585 * single-line multi-line | |
| 3586 * reg_match ®match_T NULL | |
| 3587 * reg_mmatch NULL ®mmatch_T | |
| 3588 * reg_startp reg_match->startp <invalid> | |
| 3589 * reg_endp reg_match->endp <invalid> | |
| 3590 * reg_startpos <invalid> reg_mmatch->startpos | |
| 3591 * reg_endpos <invalid> reg_mmatch->endpos | |
| 3592 * reg_win NULL window in which to search | |
| 4061 | 3593 * reg_buf curbuf buffer in which to search |
| 7 | 3594 * reg_firstlnum <invalid> first line in which to search |
| 3595 * reg_maxline 0 last line nr | |
| 3596 * reg_line_lbr FALSE or TRUE FALSE | |
| 3597 */ | |
| 3598 static regmatch_T *reg_match; | |
| 3599 static regmmatch_T *reg_mmatch; | |
| 3600 static char_u **reg_startp = NULL; | |
| 3601 static char_u **reg_endp = NULL; | |
| 3602 static lpos_T *reg_startpos = NULL; | |
| 3603 static lpos_T *reg_endpos = NULL; | |
| 3604 static win_T *reg_win; | |
| 3605 static buf_T *reg_buf; | |
| 3606 static linenr_T reg_firstlnum; | |
| 3607 static linenr_T reg_maxline; | |
| 3608 static int reg_line_lbr; /* "\n" in string is line break */ | |
| 3609 | |
| 270 | 3610 /* Values for rs_state in regitem_T. */ |
| 3611 typedef enum regstate_E | |
| 3612 { | |
| 3613 RS_NOPEN = 0 /* NOPEN and NCLOSE */ | |
| 3614 , RS_MOPEN /* MOPEN + [0-9] */ | |
| 3615 , RS_MCLOSE /* MCLOSE + [0-9] */ | |
| 3616 #ifdef FEAT_SYN_HL | |
| 3617 , RS_ZOPEN /* ZOPEN + [0-9] */ | |
| 3618 , RS_ZCLOSE /* ZCLOSE + [0-9] */ | |
| 3619 #endif | |
| 3620 , RS_BRANCH /* BRANCH */ | |
| 3621 , RS_BRCPLX_MORE /* BRACE_COMPLEX and trying one more match */ | |
| 3622 , RS_BRCPLX_LONG /* BRACE_COMPLEX and trying longest match */ | |
| 3623 , RS_BRCPLX_SHORT /* BRACE_COMPLEX and trying shortest match */ | |
| 3624 , RS_NOMATCH /* NOMATCH */ | |
| 3625 , RS_BEHIND1 /* BEHIND / NOBEHIND matching rest */ | |
| 3626 , RS_BEHIND2 /* BEHIND / NOBEHIND matching behind part */ | |
| 3627 , RS_STAR_LONG /* STAR/PLUS/BRACE_SIMPLE longest match */ | |
| 3628 , RS_STAR_SHORT /* STAR/PLUS/BRACE_SIMPLE shortest match */ | |
| 3629 } regstate_T; | |
| 3630 | |
| 3631 /* | |
| 3632 * When there are alternatives a regstate_T is put on the regstack to remember | |
| 3633 * what we are doing. | |
| 3634 * Before it may be another type of item, depending on rs_state, to remember | |
| 3635 * more things. | |
| 3636 */ | |
| 3637 typedef struct regitem_S | |
| 3638 { | |
| 3639 regstate_T rs_state; /* what we are doing, one of RS_ above */ | |
| 3640 char_u *rs_scan; /* current node in program */ | |
| 3641 union | |
| 3642 { | |
| 3643 save_se_T sesave; | |
| 3644 regsave_T regsave; | |
| 3645 } rs_un; /* room for saving reginput */ | |
| 1579 | 3646 short rs_no; /* submatch nr or BEHIND/NOBEHIND */ |
| 270 | 3647 } regitem_T; |
| 3648 | |
| 3649 static regitem_T *regstack_push __ARGS((regstate_T state, char_u *scan)); | |
| 3650 static void regstack_pop __ARGS((char_u **scan)); | |
| 3651 | |
| 3652 /* used for STAR, PLUS and BRACE_SIMPLE matching */ | |
| 3653 typedef struct regstar_S | |
| 3654 { | |
| 3655 int nextb; /* next byte */ | |
| 3656 int nextb_ic; /* next byte reverse case */ | |
| 3657 long count; | |
| 3658 long minval; | |
| 3659 long maxval; | |
| 3660 } regstar_T; | |
| 3661 | |
| 3662 /* used to store input position when a BACK was encountered, so that we now if | |
| 3663 * we made any progress since the last time. */ | |
| 3664 typedef struct backpos_S | |
| 3665 { | |
| 3666 char_u *bp_scan; /* "scan" where BACK was encountered */ | |
| 3667 regsave_T bp_pos; /* last input position */ | |
| 3668 } backpos_T; | |
| 3669 | |
| 3670 /* | |
| 1520 | 3671 * "regstack" and "backpos" are used by regmatch(). They are kept over calls |
| 3672 * to avoid invoking malloc() and free() often. | |
| 3673 * "regstack" is a stack with regitem_T items, sometimes preceded by regstar_T | |
| 3674 * or regbehind_T. | |
| 3675 * "backpos_T" is a table with backpos_T for BACK | |
| 270 | 3676 */ |
| 1520 | 3677 static garray_T regstack = {0, 0, 0, 0, NULL}; |
| 3678 static garray_T backpos = {0, 0, 0, 0, NULL}; | |
| 3679 | |
| 3680 /* | |
| 3681 * Both for regstack and backpos tables we use the following strategy of | |
| 3682 * allocation (to reduce malloc/free calls): | |
| 3683 * - Initial size is fairly small. | |
| 3684 * - When needed, the tables are grown bigger (8 times at first, double after | |
| 3685 * that). | |
| 3686 * - After executing the match we free the memory only if the array has grown. | |
| 3687 * Thus the memory is kept allocated when it's at the initial size. | |
| 3688 * This makes it fast while not keeping a lot of memory allocated. | |
| 3689 * A three times speed increase was observed when using many simple patterns. | |
| 3690 */ | |
| 3691 #define REGSTACK_INITIAL 2048 | |
| 3692 #define BACKPOS_INITIAL 64 | |
| 3693 | |
| 3694 #if defined(EXITFREE) || defined(PROTO) | |
| 3695 void | |
| 3696 free_regexp_stuff() | |
| 3697 { | |
| 3698 ga_clear(®stack); | |
| 3699 ga_clear(&backpos); | |
| 3700 vim_free(reg_tofree); | |
| 3701 vim_free(reg_prev_sub); | |
| 3702 } | |
| 3703 #endif | |
| 270 | 3704 |
| 7 | 3705 /* |
| 3706 * Get pointer to the line "lnum", which is relative to "reg_firstlnum". | |
| 3707 */ | |
| 3708 static char_u * | |
| 3709 reg_getline(lnum) | |
| 3710 linenr_T lnum; | |
| 3711 { | |
| 3712 /* when looking behind for a match/no-match lnum is negative. But we | |
| 3713 * can't go before line 1 */ | |
| 3714 if (reg_firstlnum + lnum < 1) | |
| 3715 return NULL; | |
| 482 | 3716 if (lnum > reg_maxline) |
| 481 | 3717 /* Must have matched the "\n" in the last line. */ |
| 3718 return (char_u *)""; | |
| 7 | 3719 return ml_get_buf(reg_buf, reg_firstlnum + lnum, FALSE); |
| 3720 } | |
| 3721 | |
| 3722 static regsave_T behind_pos; | |
| 3723 | |
| 3724 #ifdef FEAT_SYN_HL | |
| 3725 static char_u *reg_startzp[NSUBEXP]; /* Workspace to mark beginning */ | |
| 3726 static char_u *reg_endzp[NSUBEXP]; /* and end of \z(...\) matches */ | |
| 3727 static lpos_T reg_startzpos[NSUBEXP]; /* idem, beginning pos */ | |
| 3728 static lpos_T reg_endzpos[NSUBEXP]; /* idem, end pos */ | |
| 3729 #endif | |
| 3730 | |
| 3731 /* TRUE if using multi-line regexp. */ | |
| 3732 #define REG_MULTI (reg_match == NULL) | |
| 3733 | |
| 5838 | 3734 static int bt_regexec_nl __ARGS((regmatch_T *rmp, char_u *line, colnr_T col, int line_lbr)); |
| 3735 | |
| 4444 | 3736 |
| 7 | 3737 /* |
| 3738 * Match a regexp against a string. | |
| 3739 * "rmp->regprog" is a compiled regexp as returned by vim_regcomp(). | |
| 3740 * Uses curbuf for line count and 'iskeyword'. | |
| 5838 | 3741 * if "line_lbr" is TRUE consider a "\n" in "line" to be a line break. |
| 7 | 3742 * |
| 6390 | 3743 * Returns 0 for failure, number of lines contained in the match otherwise. |
| 7 | 3744 */ |
| 4444 | 3745 static int |
| 5838 | 3746 bt_regexec_nl(rmp, line, col, line_lbr) |
| 7 | 3747 regmatch_T *rmp; |
| 3748 char_u *line; /* string to match against */ | |
| 3749 colnr_T col; /* column to start looking for match */ | |
| 5838 | 3750 int line_lbr; |
| 7 | 3751 { |
| 3752 reg_match = rmp; | |
| 3753 reg_mmatch = NULL; | |
| 3754 reg_maxline = 0; | |
| 5838 | 3755 reg_line_lbr = line_lbr; |
| 4061 | 3756 reg_buf = curbuf; |
| 7 | 3757 reg_win = NULL; |
| 3758 ireg_ic = rmp->rm_ic; | |
| 3759 #ifdef FEAT_MBYTE | |
| 3760 ireg_icombine = FALSE; | |
| 3761 #endif | |
| 410 | 3762 ireg_maxcol = 0; |
| 6390 | 3763 |
| 3764 return bt_regexec_both(line, col, NULL); | |
| 7 | 3765 } |
| 3766 | |
| 4444 | 3767 static long bt_regexec_multi __ARGS((regmmatch_T *rmp, win_T *win, buf_T *buf, linenr_T lnum, colnr_T col, proftime_T *tm)); |
| 3768 | |
| 7 | 3769 /* |
| 3770 * Match a regexp against multiple lines. | |
| 3771 * "rmp->regprog" is a compiled regexp as returned by vim_regcomp(). | |
| 3772 * Uses curbuf for line count and 'iskeyword'. | |
| 3773 * | |
| 3774 * Return zero if there is no match. Return number of lines contained in the | |
| 3775 * match otherwise. | |
| 3776 */ | |
| 4444 | 3777 static long |
| 3778 bt_regexec_multi(rmp, win, buf, lnum, col, tm) | |
| 7 | 3779 regmmatch_T *rmp; |
| 3780 win_T *win; /* window in which to search or NULL */ | |
| 3781 buf_T *buf; /* buffer in which to search */ | |
| 3782 linenr_T lnum; /* nr of line to start looking for match */ | |
| 3783 colnr_T col; /* column to start looking for match */ | |
| 1521 | 3784 proftime_T *tm; /* timeout limit or NULL */ |
| 7 | 3785 { |
| 3786 reg_match = NULL; | |
| 3787 reg_mmatch = rmp; | |
| 3788 reg_buf = buf; | |
| 3789 reg_win = win; | |
| 3790 reg_firstlnum = lnum; | |
| 3791 reg_maxline = reg_buf->b_ml.ml_line_count - lnum; | |
| 3792 reg_line_lbr = FALSE; | |
| 3793 ireg_ic = rmp->rmm_ic; | |
| 3794 #ifdef FEAT_MBYTE | |
| 3795 ireg_icombine = FALSE; | |
| 3796 #endif | |
| 410 | 3797 ireg_maxcol = rmp->rmm_maxcol; |
| 7 | 3798 |
| 6390 | 3799 return bt_regexec_both(NULL, col, tm); |
| 7 | 3800 } |
| 3801 | |
| 3802 /* | |
| 3803 * Match a regexp against a string ("line" points to the string) or multiple | |
| 3804 * lines ("line" is NULL, use reg_getline()). | |
| 6390 | 3805 * Returns 0 for failure, number of lines contained in the match otherwise. |
| 7 | 3806 */ |
| 3807 static long | |
| 4444 | 3808 bt_regexec_both(line, col, tm) |
| 7 | 3809 char_u *line; |
| 3810 colnr_T col; /* column to start looking for match */ | |
| 1877 | 3811 proftime_T *tm UNUSED; /* timeout limit or NULL */ |
| 7 | 3812 { |
| 6390 | 3813 bt_regprog_T *prog; |
| 3814 char_u *s; | |
| 3815 long retval = 0L; | |
| 7 | 3816 |
| 1520 | 3817 /* Create "regstack" and "backpos" if they are not allocated yet. |
| 3818 * We allocate *_INITIAL amount of bytes first and then set the grow size | |
| 3819 * to much bigger value to avoid many malloc calls in case of deep regular | |
| 3820 * expressions. */ | |
| 3821 if (regstack.ga_data == NULL) | |
| 3822 { | |
| 3823 /* Use an item size of 1 byte, since we push different things | |
| 3824 * onto the regstack. */ | |
| 3825 ga_init2(®stack, 1, REGSTACK_INITIAL); | |
| 3826 ga_grow(®stack, REGSTACK_INITIAL); | |
| 3827 regstack.ga_growsize = REGSTACK_INITIAL * 8; | |
| 3828 } | |
| 3829 | |
| 3830 if (backpos.ga_data == NULL) | |
| 3831 { | |
| 3832 ga_init2(&backpos, sizeof(backpos_T), BACKPOS_INITIAL); | |
| 3833 ga_grow(&backpos, BACKPOS_INITIAL); | |
| 3834 backpos.ga_growsize = BACKPOS_INITIAL * 8; | |
| 3835 } | |
| 270 | 3836 |
| 7 | 3837 if (REG_MULTI) |
| 3838 { | |
| 4444 | 3839 prog = (bt_regprog_T *)reg_mmatch->regprog; |
| 7 | 3840 line = reg_getline((linenr_T)0); |
| 3841 reg_startpos = reg_mmatch->startpos; | |
| 3842 reg_endpos = reg_mmatch->endpos; | |
| 3843 } | |
| 3844 else | |
| 3845 { | |
| 4444 | 3846 prog = (bt_regprog_T *)reg_match->regprog; |
| 7 | 3847 reg_startp = reg_match->startp; |
| 3848 reg_endp = reg_match->endp; | |
| 3849 } | |
| 3850 | |
| 3851 /* Be paranoid... */ | |
| 3852 if (prog == NULL || line == NULL) | |
| 3853 { | |
| 3854 EMSG(_(e_null)); | |
| 3855 goto theend; | |
| 3856 } | |
| 3857 | |
| 3858 /* Check validity of program. */ | |
| 3859 if (prog_magic_wrong()) | |
| 3860 goto theend; | |
| 3861 | |
| 410 | 3862 /* If the start column is past the maximum column: no need to try. */ |
| 3863 if (ireg_maxcol > 0 && col >= ireg_maxcol) | |
| 3864 goto theend; | |
| 3865 | |
| 7 | 3866 /* If pattern contains "\c" or "\C": overrule value of ireg_ic */ |
| 3867 if (prog->regflags & RF_ICASE) | |
| 3868 ireg_ic = TRUE; | |
| 3869 else if (prog->regflags & RF_NOICASE) | |
| 3870 ireg_ic = FALSE; | |
| 3871 | |
| 3872 #ifdef FEAT_MBYTE | |
| 3873 /* If pattern contains "\Z" overrule value of ireg_icombine */ | |
| 3874 if (prog->regflags & RF_ICOMBINE) | |
| 3875 ireg_icombine = TRUE; | |
| 3876 #endif | |
| 3877 | |
| 3878 /* If there is a "must appear" string, look for it. */ | |
| 3879 if (prog->regmust != NULL) | |
| 3880 { | |
| 3881 int c; | |
| 3882 | |
| 3883 #ifdef FEAT_MBYTE | |
| 3884 if (has_mbyte) | |
| 3885 c = (*mb_ptr2char)(prog->regmust); | |
| 3886 else | |
| 3887 #endif | |
| 3888 c = *prog->regmust; | |
| 3889 s = line + col; | |
| 170 | 3890 |
| 3891 /* | |
| 3892 * This is used very often, esp. for ":global". Use three versions of | |
| 3893 * the loop to avoid overhead of conditions. | |
| 3894 */ | |
| 3895 if (!ireg_ic | |
| 3896 #ifdef FEAT_MBYTE | |
| 3897 && !has_mbyte | |
| 3898 #endif | |
| 3899 ) | |
| 3900 while ((s = vim_strbyte(s, c)) != NULL) | |
| 3901 { | |
| 3902 if (cstrncmp(s, prog->regmust, &prog->regmlen) == 0) | |
| 3903 break; /* Found it. */ | |
| 3904 ++s; | |
| 3905 } | |
| 3906 #ifdef FEAT_MBYTE | |
| 3907 else if (!ireg_ic || (!enc_utf8 && mb_char2len(c) > 1)) | |
| 3908 while ((s = vim_strchr(s, c)) != NULL) | |
| 3909 { | |
| 3910 if (cstrncmp(s, prog->regmust, &prog->regmlen) == 0) | |
| 3911 break; /* Found it. */ | |
| 3912 mb_ptr_adv(s); | |
| 3913 } | |
| 3914 #endif | |
| 3915 else | |
| 3916 while ((s = cstrchr(s, c)) != NULL) | |
| 3917 { | |
| 3918 if (cstrncmp(s, prog->regmust, &prog->regmlen) == 0) | |
| 3919 break; /* Found it. */ | |
| 3920 mb_ptr_adv(s); | |
| 3921 } | |
| 7 | 3922 if (s == NULL) /* Not present. */ |
| 3923 goto theend; | |
| 3924 } | |
| 3925 | |
| 3926 regline = line; | |
| 3927 reglnum = 0; | |
| 2578 | 3928 reg_toolong = FALSE; |
| 7 | 3929 |
| 3930 /* Simplest case: Anchored match need be tried only once. */ | |
| 3931 if (prog->reganch) | |
| 3932 { | |
| 3933 int c; | |
| 3934 | |
| 3935 #ifdef FEAT_MBYTE | |
| 3936 if (has_mbyte) | |
| 3937 c = (*mb_ptr2char)(regline + col); | |
| 3938 else | |
| 3939 #endif | |
| 3940 c = regline[col]; | |
| 3941 if (prog->regstart == NUL | |
| 3942 || prog->regstart == c | |
| 3943 || (ireg_ic && (( | |
| 3944 #ifdef FEAT_MBYTE | |
| 3945 (enc_utf8 && utf_fold(prog->regstart) == utf_fold(c))) | |
| 3946 || (c < 255 && prog->regstart < 255 && | |
| 3947 #endif | |
| 1347 | 3948 MB_TOLOWER(prog->regstart) == MB_TOLOWER(c))))) |
| 7 | 3949 retval = regtry(prog, col); |
| 3950 else | |
| 3951 retval = 0; | |
| 3952 } | |
| 3953 else | |
| 3954 { | |
| 1521 | 3955 #ifdef FEAT_RELTIME |
| 3956 int tm_count = 0; | |
| 3957 #endif | |
| 7 | 3958 /* Messy cases: unanchored match. */ |
| 180 | 3959 while (!got_int) |
| 7 | 3960 { |
| 3961 if (prog->regstart != NUL) | |
| 3962 { | |
| 170 | 3963 /* Skip until the char we know it must start with. |
| 3964 * Used often, do some work to avoid call overhead. */ | |
| 3965 if (!ireg_ic | |
| 3966 #ifdef FEAT_MBYTE | |
| 3967 && !has_mbyte | |
| 3968 #endif | |
| 3969 ) | |
| 3970 s = vim_strbyte(regline + col, prog->regstart); | |
| 3971 else | |
| 3972 s = cstrchr(regline + col, prog->regstart); | |
| 7 | 3973 if (s == NULL) |
| 3974 { | |
| 3975 retval = 0; | |
| 3976 break; | |
| 3977 } | |
| 3978 col = (int)(s - regline); | |
| 3979 } | |
| 3980 | |
| 410 | 3981 /* Check for maximum column to try. */ |
| 3982 if (ireg_maxcol > 0 && col >= ireg_maxcol) | |
| 3983 { | |
| 3984 retval = 0; | |
| 3985 break; | |
| 3986 } | |
| 3987 | |
| 7 | 3988 retval = regtry(prog, col); |
| 3989 if (retval > 0) | |
| 3990 break; | |
| 3991 | |
| 3992 /* if not currently on the first line, get it again */ | |
| 3993 if (reglnum != 0) | |
| 3994 { | |
| 481 | 3995 reglnum = 0; |
| 7 | 3996 regline = reg_getline((linenr_T)0); |
| 3997 } | |
| 3998 if (regline[col] == NUL) | |
| 3999 break; | |
| 4000 #ifdef FEAT_MBYTE | |
| 4001 if (has_mbyte) | |
| 474 | 4002 col += (*mb_ptr2len)(regline + col); |
| 7 | 4003 else |
| 4004 #endif | |
| 4005 ++col; | |
| 1521 | 4006 #ifdef FEAT_RELTIME |
| 4007 /* Check for timeout once in a twenty times to avoid overhead. */ | |
| 4008 if (tm != NULL && ++tm_count == 20) | |
| 4009 { | |
| 4010 tm_count = 0; | |
| 4011 if (profile_passed_limit(tm)) | |
| 4012 break; | |
| 4013 } | |
| 4014 #endif | |
| 7 | 4015 } |
| 4016 } | |
| 4017 | |
| 4018 theend: | |
| 1520 | 4019 /* Free "reg_tofree" when it's a bit big. |
| 4020 * Free regstack and backpos if they are bigger than their initial size. */ | |
| 4021 if (reg_tofreelen > 400) | |
| 4022 { | |
| 4023 vim_free(reg_tofree); | |
| 4024 reg_tofree = NULL; | |
| 4025 } | |
| 4026 if (regstack.ga_maxlen > REGSTACK_INITIAL) | |
| 4027 ga_clear(®stack); | |
| 4028 if (backpos.ga_maxlen > BACKPOS_INITIAL) | |
| 4029 ga_clear(&backpos); | |
| 270 | 4030 |
| 7 | 4031 return retval; |
| 4032 } | |
| 4033 | |
| 4034 #ifdef FEAT_SYN_HL | |
| 4035 static reg_extmatch_T *make_extmatch __ARGS((void)); | |
| 4036 | |
| 4037 /* | |
| 4038 * Create a new extmatch and mark it as referenced once. | |
| 4039 */ | |
| 4040 static reg_extmatch_T * | |
| 4041 make_extmatch() | |
| 4042 { | |
| 4043 reg_extmatch_T *em; | |
| 4044 | |
| 4045 em = (reg_extmatch_T *)alloc_clear((unsigned)sizeof(reg_extmatch_T)); | |
| 4046 if (em != NULL) | |
| 4047 em->refcnt = 1; | |
| 4048 return em; | |
| 4049 } | |
| 4050 | |
| 4051 /* | |
| 4052 * Add a reference to an extmatch. | |
| 4053 */ | |
| 4054 reg_extmatch_T * | |
| 4055 ref_extmatch(em) | |
| 4056 reg_extmatch_T *em; | |
| 4057 { | |
| 4058 if (em != NULL) | |
| 4059 em->refcnt++; | |
| 4060 return em; | |
| 4061 } | |
| 4062 | |
| 4063 /* | |
| 4064 * Remove a reference to an extmatch. If there are no references left, free | |
| 4065 * the info. | |
| 4066 */ | |
| 4067 void | |
| 4068 unref_extmatch(em) | |
| 4069 reg_extmatch_T *em; | |
| 4070 { | |
| 4071 int i; | |
| 4072 | |
| 4073 if (em != NULL && --em->refcnt <= 0) | |
| 4074 { | |
| 4075 for (i = 0; i < NSUBEXP; ++i) | |
| 4076 vim_free(em->matches[i]); | |
| 4077 vim_free(em); | |
| 4078 } | |
| 4079 } | |
| 4080 #endif | |
| 4081 | |
| 4082 /* | |
| 4083 * regtry - try match of "prog" with at regline["col"]. | |
| 4084 * Returns 0 for failure, number of lines contained in the match otherwise. | |
| 4085 */ | |
| 4086 static long | |
| 4087 regtry(prog, col) | |
| 4444 | 4088 bt_regprog_T *prog; |
| 7 | 4089 colnr_T col; |
| 4090 { | |
| 4091 reginput = regline + col; | |
| 4092 need_clear_subexpr = TRUE; | |
| 4093 #ifdef FEAT_SYN_HL | |
| 4094 /* Clear the external match subpointers if necessary. */ | |
| 4095 if (prog->reghasz == REX_SET) | |
| 4096 need_clear_zsubexpr = TRUE; | |
| 4097 #endif | |
| 4098 | |
| 189 | 4099 if (regmatch(prog->program + 1) == 0) |
| 4100 return 0; | |
| 4101 | |
| 4102 cleanup_subexpr(); | |
| 4103 if (REG_MULTI) | |
| 7 | 4104 { |
| 189 | 4105 if (reg_startpos[0].lnum < 0) |
| 7 | 4106 { |
| 189 | 4107 reg_startpos[0].lnum = 0; |
| 4108 reg_startpos[0].col = col; | |
| 4109 } | |
| 4110 if (reg_endpos[0].lnum < 0) | |
| 4111 { | |
| 4112 reg_endpos[0].lnum = reglnum; | |
| 4113 reg_endpos[0].col = (int)(reginput - regline); | |
| 7 | 4114 } |
| 4115 else | |
| 189 | 4116 /* Use line number of "\ze". */ |
| 4117 reglnum = reg_endpos[0].lnum; | |
| 4118 } | |
| 4119 else | |
| 4120 { | |
| 4121 if (reg_startp[0] == NULL) | |
| 4122 reg_startp[0] = regline + col; | |
| 4123 if (reg_endp[0] == NULL) | |
| 4124 reg_endp[0] = reginput; | |
| 4125 } | |
| 7 | 4126 #ifdef FEAT_SYN_HL |
| 189 | 4127 /* Package any found \z(...\) matches for export. Default is none. */ |
| 4128 unref_extmatch(re_extmatch_out); | |
| 4129 re_extmatch_out = NULL; | |
| 4130 | |
| 4131 if (prog->reghasz == REX_SET) | |
| 4132 { | |
| 4133 int i; | |
| 4134 | |
| 4135 cleanup_zsubexpr(); | |
| 4136 re_extmatch_out = make_extmatch(); | |
| 4137 for (i = 0; i < NSUBEXP; i++) | |
| 7 | 4138 { |
| 189 | 4139 if (REG_MULTI) |
| 7 | 4140 { |
| 189 | 4141 /* Only accept single line matches. */ |
| 4142 if (reg_startzpos[i].lnum >= 0 | |
| 5820 | 4143 && reg_endzpos[i].lnum == reg_startzpos[i].lnum |
| 4144 && reg_endzpos[i].col >= reg_startzpos[i].col) | |
| 189 | 4145 re_extmatch_out->matches[i] = |
| 4146 vim_strnsave(reg_getline(reg_startzpos[i].lnum) | |
| 7 | 4147 + reg_startzpos[i].col, |
| 189 | 4148 reg_endzpos[i].col - reg_startzpos[i].col); |
| 4149 } | |
| 4150 else | |
| 4151 { | |
| 4152 if (reg_startzp[i] != NULL && reg_endzp[i] != NULL) | |
| 4153 re_extmatch_out->matches[i] = | |
| 7 | 4154 vim_strnsave(reg_startzp[i], |
| 189 | 4155 (int)(reg_endzp[i] - reg_startzp[i])); |
| 7 | 4156 } |
| 4157 } | |
| 189 | 4158 } |
| 7 | 4159 #endif |
| 189 | 4160 return 1 + reglnum; |
| 7 | 4161 } |
| 4162 | |
| 4163 #ifdef FEAT_MBYTE | |
| 4164 static int reg_prev_class __ARGS((void)); | |
| 4165 | |
| 4166 /* | |
| 4167 * Get class of previous character. | |
| 4168 */ | |
| 4169 static int | |
| 4170 reg_prev_class() | |
| 4171 { | |
| 4172 if (reginput > regline) | |
| 4069 | 4173 return mb_get_class_buf(reginput - 1 |
| 4174 - (*mb_head_off)(regline, reginput - 1), reg_buf); | |
| 7 | 4175 return -1; |
| 4176 } | |
| 5735 | 4177 #endif |
| 4178 | |
|
4730
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4179 static int reg_match_visual __ARGS((void)); |
|
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 /* |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4182 * 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
|
4183 */ |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4184 static int |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4185 reg_match_visual() |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4186 { |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4187 pos_T top, bot; |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4188 linenr_T lnum; |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4189 colnr_T col; |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4190 win_T *wp = reg_win == NULL ? curwin : reg_win; |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4191 int mode; |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4192 colnr_T start, end; |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4193 colnr_T start2, end2; |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4194 colnr_T cols; |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4195 |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4196 /* Check if the buffer is the current buffer. */ |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4197 if (reg_buf != curbuf || VIsual.lnum == 0) |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4198 return FALSE; |
|
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 if (VIsual_active) |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4201 { |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4202 if (lt(VIsual, wp->w_cursor)) |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4203 { |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4204 top = VIsual; |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4205 bot = wp->w_cursor; |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4206 } |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4207 else |
|
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 top = wp->w_cursor; |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4210 bot = VIsual; |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4211 } |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4212 mode = VIsual_mode; |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4213 } |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4214 else |
|
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 if (lt(curbuf->b_visual.vi_start, curbuf->b_visual.vi_end)) |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4217 { |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4218 top = curbuf->b_visual.vi_start; |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4219 bot = curbuf->b_visual.vi_end; |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4220 } |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4221 else |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4222 { |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4223 top = curbuf->b_visual.vi_end; |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4224 bot = curbuf->b_visual.vi_start; |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4225 } |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4226 mode = curbuf->b_visual.vi_mode; |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4227 } |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4228 lnum = reglnum + reg_firstlnum; |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4229 if (lnum < top.lnum || lnum > bot.lnum) |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4230 return FALSE; |
|
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 if (mode == 'v') |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4233 { |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4234 col = (colnr_T)(reginput - regline); |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4235 if ((lnum == top.lnum && col < top.col) |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4236 || (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
|
4237 return FALSE; |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4238 } |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4239 else if (mode == Ctrl_V) |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4240 { |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4241 getvvcol(wp, &top, &start, NULL, &end); |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4242 getvvcol(wp, &bot, &start2, NULL, &end2); |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4243 if (start2 < start) |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4244 start = start2; |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4245 if (end2 > end) |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4246 end = end2; |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4247 if (top.col == MAXCOL || bot.col == MAXCOL) |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4248 end = MAXCOL; |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4249 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
|
4250 if (cols < start || cols > end - (*p_sel == 'e')) |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4251 return FALSE; |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4252 } |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4253 return TRUE; |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4254 } |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4255 |
| 39 | 4256 #define ADVANCE_REGINPUT() mb_ptr_adv(reginput) |
| 7 | 4257 |
| 4258 /* | |
| 4259 * The arguments from BRACE_LIMITS are stored here. They are actually local | |
| 4260 * to regmatch(), but they are here to reduce the amount of stack space used | |
| 4261 * (it can be called recursively many times). | |
| 4262 */ | |
| 4263 static long bl_minval; | |
| 4264 static long bl_maxval; | |
| 4265 | |
| 4266 /* | |
| 4267 * regmatch - main matching routine | |
| 4268 * | |
| 180 | 4269 * Conceptually the strategy is simple: Check to see whether the current node |
| 4270 * matches, push an item onto the regstack and loop to see whether the rest | |
| 4271 * matches, and then act accordingly. In practice we make some effort to | |
| 4272 * avoid using the regstack, in particular by going through "ordinary" nodes | |
| 4273 * (that don't need to know whether the rest of the match failed) by a nested | |
| 4274 * loop. | |
| 7 | 4275 * |
| 4276 * Returns TRUE when there is a match. Leaves reginput and reglnum just after | |
| 4277 * the last matched character. | |
| 4278 * Returns FALSE when there is no match. Leaves reginput and reglnum in an | |
| 4279 * undefined state! | |
| 4280 */ | |
| 4281 static int | |
| 180 | 4282 regmatch(scan) |
| 7 | 4283 char_u *scan; /* Current node. */ |
| 4284 { | |
| 180 | 4285 char_u *next; /* Next node. */ |
| 4286 int op; | |
| 4287 int c; | |
| 4288 regitem_T *rp; | |
| 4289 int no; | |
| 4290 int status; /* one of the RA_ values: */ | |
| 4291 #define RA_FAIL 1 /* something failed, abort */ | |
| 4292 #define RA_CONT 2 /* continue in inner loop */ | |
| 4293 #define RA_BREAK 3 /* break inner loop */ | |
| 4294 #define RA_MATCH 4 /* successful match */ | |
| 4295 #define RA_NOMATCH 5 /* didn't match */ | |
| 270 | 4296 |
| 1520 | 4297 /* Make "regstack" and "backpos" empty. They are allocated and freed in |
| 4444 | 4298 * bt_regexec_both() to reduce malloc()/free() calls. */ |
| 270 | 4299 regstack.ga_len = 0; |
| 4300 backpos.ga_len = 0; | |
| 233 | 4301 |
| 180 | 4302 /* |
| 233 | 4303 * Repeat until "regstack" is empty. |
| 180 | 4304 */ |
| 4305 for (;;) | |
| 4306 { | |
| 5310 | 4307 /* Some patterns may take a long time to match, e.g., "\([a-z]\+\)\+Q". |
| 4308 * Allow interrupting them with CTRL-C. */ | |
| 7 | 4309 fast_breakcheck(); |
| 4310 | |
| 4311 #ifdef DEBUG | |
| 4312 if (scan != NULL && regnarrate) | |
| 4313 { | |
| 4444 | 4314 mch_errmsg((char *)regprop(scan)); |
| 7 | 4315 mch_errmsg("(\n"); |
| 4316 } | |
| 4317 #endif | |
| 180 | 4318 |
| 4319 /* | |
| 233 | 4320 * Repeat for items that can be matched sequentially, without using the |
| 180 | 4321 * regstack. |
| 4322 */ | |
| 4323 for (;;) | |
| 7 | 4324 { |
| 180 | 4325 if (got_int || scan == NULL) |
| 4326 { | |
| 4327 status = RA_FAIL; | |
| 4328 break; | |
| 4329 } | |
| 4330 status = RA_CONT; | |
| 4331 | |
| 7 | 4332 #ifdef DEBUG |
| 4333 if (regnarrate) | |
| 4334 { | |
| 4444 | 4335 mch_errmsg((char *)regprop(scan)); |
| 7 | 4336 mch_errmsg("...\n"); |
| 4337 # ifdef FEAT_SYN_HL | |
| 4338 if (re_extmatch_in != NULL) | |
| 4339 { | |
| 4340 int i; | |
| 4341 | |
| 4342 mch_errmsg(_("External submatches:\n")); | |
| 4343 for (i = 0; i < NSUBEXP; i++) | |
| 4344 { | |
| 4345 mch_errmsg(" \""); | |
| 4346 if (re_extmatch_in->matches[i] != NULL) | |
| 4444 | 4347 mch_errmsg((char *)re_extmatch_in->matches[i]); |
| 7 | 4348 mch_errmsg("\"\n"); |
| 4349 } | |
| 4350 } | |
| 4351 # endif | |
| 4352 } | |
| 4353 #endif | |
| 4354 next = regnext(scan); | |
| 4355 | |
| 4356 op = OP(scan); | |
| 4357 /* Check for character class with NL added. */ | |
| 1018 | 4358 if (!reg_line_lbr && WITH_NL(op) && REG_MULTI |
| 4359 && *reginput == NUL && reglnum <= reg_maxline) | |
| 7 | 4360 { |
| 4361 reg_nextline(); | |
| 4362 } | |
| 4363 else if (reg_line_lbr && WITH_NL(op) && *reginput == '\n') | |
| 4364 { | |
| 4365 ADVANCE_REGINPUT(); | |
| 4366 } | |
| 4367 else | |
| 4368 { | |
| 4369 if (WITH_NL(op)) | |
| 180 | 4370 op -= ADD_NL; |
| 7 | 4371 #ifdef FEAT_MBYTE |
| 4372 if (has_mbyte) | |
| 4373 c = (*mb_ptr2char)(reginput); | |
| 4374 else | |
| 4375 #endif | |
| 4376 c = *reginput; | |
| 4377 switch (op) | |
| 4378 { | |
| 4379 case BOL: | |
| 4380 if (reginput != regline) | |
| 180 | 4381 status = RA_NOMATCH; |
| 7 | 4382 break; |
| 4383 | |
| 4384 case EOL: | |
| 4385 if (c != NUL) | |
| 180 | 4386 status = RA_NOMATCH; |
| 7 | 4387 break; |
| 4388 | |
| 4389 case RE_BOF: | |
| 1458 | 4390 /* We're not at the beginning of the file when below the first |
| 4391 * line where we started, not at the start of the line or we | |
| 4392 * didn't start at the first line of the buffer. */ | |
| 7 | 4393 if (reglnum != 0 || reginput != regline |
| 1458 | 4394 || (REG_MULTI && reg_firstlnum > 1)) |
| 180 | 4395 status = RA_NOMATCH; |
| 7 | 4396 break; |
| 4397 | |
| 4398 case RE_EOF: | |
| 4399 if (reglnum != reg_maxline || c != NUL) | |
| 180 | 4400 status = RA_NOMATCH; |
| 7 | 4401 break; |
| 4402 | |
| 4403 case CURSOR: | |
| 4404 /* Check if the buffer is in a window and compare the | |
| 4405 * reg_win->w_cursor position to the match position. */ | |
| 4406 if (reg_win == NULL | |
| 4407 || (reglnum + reg_firstlnum != reg_win->w_cursor.lnum) | |
| 4408 || ((colnr_T)(reginput - regline) != reg_win->w_cursor.col)) | |
| 180 | 4409 status = RA_NOMATCH; |
| 7 | 4410 break; |
| 4411 | |
| 639 | 4412 case RE_MARK: |
|
4732
0798b096bab3
updated for version 7.3.1113
Bram Moolenaar <bram@vim.org>
parents:
4730
diff
changeset
|
4413 /* Compare the mark position to the match position. */ |
| 639 | 4414 { |
| 4415 int mark = OPERAND(scan)[0]; | |
| 4416 int cmp = OPERAND(scan)[1]; | |
| 4417 pos_T *pos; | |
| 4418 | |
| 4043 | 4419 pos = getmark_buf(reg_buf, mark, FALSE); |
| 1148 | 4420 if (pos == NULL /* mark doesn't exist */ |
|
4732
0798b096bab3
updated for version 7.3.1113
Bram Moolenaar <bram@vim.org>
parents:
4730
diff
changeset
|
4421 || pos->lnum <= 0 /* mark isn't set in reg_buf */ |
| 639 | 4422 || (pos->lnum == reglnum + reg_firstlnum |
| 4423 ? (pos->col == (colnr_T)(reginput - regline) | |
| 4424 ? (cmp == '<' || cmp == '>') | |
| 4425 : (pos->col < (colnr_T)(reginput - regline) | |
| 4426 ? cmp != '>' | |
| 4427 : cmp != '<')) | |
| 4428 : (pos->lnum < reglnum + reg_firstlnum | |
| 4429 ? cmp != '>' | |
| 4430 : cmp != '<'))) | |
| 4431 status = RA_NOMATCH; | |
| 4432 } | |
| 4433 break; | |
| 4434 | |
| 4435 case RE_VISUAL: | |
|
4730
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
4436 if (!reg_match_visual()) |
| 639 | 4437 status = RA_NOMATCH; |
| 4438 break; | |
| 4439 | |
| 7 | 4440 case RE_LNUM: |
| 4441 if (!REG_MULTI || !re_num_cmp((long_u)(reglnum + reg_firstlnum), | |
| 4442 scan)) | |
| 180 | 4443 status = RA_NOMATCH; |
| 7 | 4444 break; |
| 4445 | |
| 4446 case RE_COL: | |
| 4447 if (!re_num_cmp((long_u)(reginput - regline) + 1, scan)) | |
| 180 | 4448 status = RA_NOMATCH; |
| 7 | 4449 break; |
| 4450 | |
| 4451 case RE_VCOL: | |
| 4452 if (!re_num_cmp((long_u)win_linetabsize( | |
| 4453 reg_win == NULL ? curwin : reg_win, | |
| 4454 regline, (colnr_T)(reginput - regline)) + 1, scan)) | |
| 180 | 4455 status = RA_NOMATCH; |
| 7 | 4456 break; |
| 4457 | |
| 4458 case BOW: /* \<word; reginput points to w */ | |
| 4459 if (c == NUL) /* Can't match at end of line */ | |
| 180 | 4460 status = RA_NOMATCH; |
| 7 | 4461 #ifdef FEAT_MBYTE |
| 180 | 4462 else if (has_mbyte) |
| 7 | 4463 { |
| 4464 int this_class; | |
| 4465 | |
| 4466 /* Get class of current and previous char (if it exists). */ | |
| 4069 | 4467 this_class = mb_get_class_buf(reginput, reg_buf); |
| 7 | 4468 if (this_class <= 1) |
| 180 | 4469 status = RA_NOMATCH; /* not on a word at all */ |
| 4470 else if (reg_prev_class() == this_class) | |
| 4471 status = RA_NOMATCH; /* previous char is in same word */ | |
| 7 | 4472 } |
| 4473 #endif | |
| 4474 else | |
| 4475 { | |
| 4061 | 4476 if (!vim_iswordc_buf(c, reg_buf) || (reginput > regline |
| 4477 && vim_iswordc_buf(reginput[-1], reg_buf))) | |
| 180 | 4478 status = RA_NOMATCH; |
| 7 | 4479 } |
| 4480 break; | |
| 4481 | |
| 4482 case EOW: /* word\>; reginput points after d */ | |
| 4483 if (reginput == regline) /* Can't match at start of line */ | |
| 180 | 4484 status = RA_NOMATCH; |
| 7 | 4485 #ifdef FEAT_MBYTE |
| 180 | 4486 else if (has_mbyte) |
| 7 | 4487 { |
| 4488 int this_class, prev_class; | |
| 4489 | |
| 4490 /* Get class of current and previous char (if it exists). */ | |
| 4069 | 4491 this_class = mb_get_class_buf(reginput, reg_buf); |
| 7 | 4492 prev_class = reg_prev_class(); |
| 180 | 4493 if (this_class == prev_class |
| 4494 || prev_class == 0 || prev_class == 1) | |
| 4495 status = RA_NOMATCH; | |
| 7 | 4496 } |
| 180 | 4497 #endif |
| 7 | 4498 else |
| 4499 { | |
| 4043 | 4500 if (!vim_iswordc_buf(reginput[-1], reg_buf) |
| 4501 || (reginput[0] != NUL && vim_iswordc_buf(c, reg_buf))) | |
| 180 | 4502 status = RA_NOMATCH; |
| 7 | 4503 } |
| 4504 break; /* Matched with EOW */ | |
| 4505 | |
| 4506 case ANY: | |
| 4084 | 4507 /* ANY does not match new lines. */ |
| 7 | 4508 if (c == NUL) |
| 180 | 4509 status = RA_NOMATCH; |
| 4510 else | |
| 4511 ADVANCE_REGINPUT(); | |
| 7 | 4512 break; |
| 4513 | |
| 4514 case IDENT: | |
| 4515 if (!vim_isIDc(c)) | |
| 180 | 4516 status = RA_NOMATCH; |
| 4517 else | |
| 4518 ADVANCE_REGINPUT(); | |
| 7 | 4519 break; |
| 4520 | |
| 4521 case SIDENT: | |
| 4522 if (VIM_ISDIGIT(*reginput) || !vim_isIDc(c)) | |
| 180 | 4523 status = RA_NOMATCH; |
| 4524 else | |
| 4525 ADVANCE_REGINPUT(); | |
| 7 | 4526 break; |
| 4527 | |
| 4528 case KWORD: | |
| 4069 | 4529 if (!vim_iswordp_buf(reginput, reg_buf)) |
| 180 | 4530 status = RA_NOMATCH; |
| 4531 else | |
| 4532 ADVANCE_REGINPUT(); | |
| 7 | 4533 break; |
| 4534 | |
| 4535 case SKWORD: | |
| 4069 | 4536 if (VIM_ISDIGIT(*reginput) || !vim_iswordp_buf(reginput, 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: | |
| 4571 if (!vim_iswhite(c)) | |
| 180 | 4572 status = RA_NOMATCH; |
| 4573 else | |
| 4574 ADVANCE_REGINPUT(); | |
| 7 | 4575 break; |
| 4576 | |
| 4577 case NWHITE: | |
| 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 | |
| 4704 && (!ireg_ic || ( | |
| 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 |
| 4719 && !(enc_utf8 && ireg_ic) | |
| 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) | |
| 5901 | 4738 && !ireg_icombine |
| 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) |
| 4780 opndc = mb_ptr2char(opnd); | |
| 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 { |
| 714 | 4789 inpc = mb_ptr2char(reginput + i); |
| 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. */ | |
| 4798 len = i + mb_ptr2len(reginput + i); | |
| 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))) | |
| 4823 mb_cptr_adv(reginput); | |
| 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: /* \( */ | |
| 4872 case MOPEN + 2: | |
| 4873 case MOPEN + 3: | |
| 4874 case MOPEN + 4: | |
| 4875 case MOPEN + 5: | |
| 4876 case MOPEN + 6: | |
| 4877 case MOPEN + 7: | |
| 4878 case MOPEN + 8: | |
| 4879 case MOPEN + 9: | |
| 4880 { | |
| 4881 no = op - MOPEN; | |
| 4882 cleanup_subexpr(); | |
| 270 | 4883 rp = regstack_push(RS_MOPEN, scan); |
| 180 | 4884 if (rp == NULL) |
| 4885 status = RA_FAIL; | |
| 4886 else | |
| 4887 { | |
| 4888 rp->rs_no = no; | |
| 4889 save_se(&rp->rs_un.sesave, ®_startpos[no], | |
| 4890 ®_startp[no]); | |
| 4891 /* We simply continue and handle the result when done. */ | |
| 4892 } | |
| 7 | 4893 } |
| 180 | 4894 break; |
| 7 | 4895 |
| 4896 case NOPEN: /* \%( */ | |
| 4897 case NCLOSE: /* \) 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; | |
| 4949 save_se(&rp->rs_un.sesave, ®_endpos[no], ®_endp[no]); | |
| 4950 /* We simply continue and handle the result when done. */ | |
| 4951 } | |
| 7 | 4952 } |
| 180 | 4953 break; |
| 7 | 4954 |
| 4955 #ifdef FEAT_SYN_HL | |
| 4956 case ZCLOSE + 1: /* \) after \z( */ | |
| 4957 case ZCLOSE + 2: | |
| 4958 case ZCLOSE + 3: | |
| 4959 case ZCLOSE + 4: | |
| 4960 case ZCLOSE + 5: | |
| 4961 case ZCLOSE + 6: | |
| 4962 case ZCLOSE + 7: | |
| 4963 case ZCLOSE + 8: | |
| 4964 case ZCLOSE + 9: | |
| 4965 { | |
| 4966 no = op - ZCLOSE; | |
| 4967 cleanup_zsubexpr(); | |
| 270 | 4968 rp = regstack_push(RS_ZCLOSE, scan); |
| 180 | 4969 if (rp == NULL) |
| 4970 status = RA_FAIL; | |
| 4971 else | |
| 4972 { | |
| 4973 rp->rs_no = no; | |
| 4974 save_se(&rp->rs_un.sesave, ®_endzpos[no], | |
| 4975 ®_endzp[no]); | |
| 4976 /* We simply continue and handle the result when done. */ | |
| 4977 } | |
| 7 | 4978 } |
| 180 | 4979 break; |
| 7 | 4980 #endif |
| 4981 | |
| 4982 case BACKREF + 1: | |
| 4983 case BACKREF + 2: | |
| 4984 case BACKREF + 3: | |
| 4985 case BACKREF + 4: | |
| 4986 case BACKREF + 5: | |
| 4987 case BACKREF + 6: | |
| 4988 case BACKREF + 7: | |
| 4989 case BACKREF + 8: | |
| 4990 case BACKREF + 9: | |
| 4991 { | |
| 4992 int len; | |
| 4993 | |
| 4994 no = op - BACKREF; | |
| 4995 cleanup_subexpr(); | |
| 4996 if (!REG_MULTI) /* Single-line regexp */ | |
| 4997 { | |
| 1815 | 4998 if (reg_startp[no] == NULL || reg_endp[no] == NULL) |
| 7 | 4999 { |
| 5000 /* Backref was not set: Match an empty string. */ | |
| 5001 len = 0; | |
| 5002 } | |
| 5003 else | |
| 5004 { | |
| 5005 /* Compare current input with back-ref in the same | |
| 5006 * line. */ | |
| 5007 len = (int)(reg_endp[no] - reg_startp[no]); | |
| 5008 if (cstrncmp(reg_startp[no], reginput, &len) != 0) | |
| 180 | 5009 status = RA_NOMATCH; |
| 7 | 5010 } |
| 5011 } | |
| 5012 else /* Multi-line regexp */ | |
| 5013 { | |
| 1815 | 5014 if (reg_startpos[no].lnum < 0 || reg_endpos[no].lnum < 0) |
| 7 | 5015 { |
| 5016 /* Backref was not set: Match an empty string. */ | |
| 5017 len = 0; | |
| 5018 } | |
| 5019 else | |
| 5020 { | |
| 5021 if (reg_startpos[no].lnum == reglnum | |
| 5022 && reg_endpos[no].lnum == reglnum) | |
| 5023 { | |
| 5024 /* Compare back-ref within the current line. */ | |
| 5025 len = reg_endpos[no].col - reg_startpos[no].col; | |
| 5026 if (cstrncmp(regline + reg_startpos[no].col, | |
| 5027 reginput, &len) != 0) | |
| 180 | 5028 status = RA_NOMATCH; |
| 7 | 5029 } |
| 5030 else | |
| 5031 { | |
| 5032 /* Messy situation: Need to compare between two | |
| 5033 * lines. */ | |
|
4901
56fbf60e9476
updated for version 7.3.1196
Bram Moolenaar <bram@vim.org>
parents:
4899
diff
changeset
|
5034 int r = match_with_backref( |
|
4891
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
5035 reg_startpos[no].lnum, |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
5036 reg_startpos[no].col, |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
5037 reg_endpos[no].lnum, |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
5038 reg_endpos[no].col, |
|
4899
4837fd61be52
updated for version 7.3.1195
Bram Moolenaar <bram@vim.org>
parents:
4891
diff
changeset
|
5039 &len); |
|
4901
56fbf60e9476
updated for version 7.3.1196
Bram Moolenaar <bram@vim.org>
parents:
4899
diff
changeset
|
5040 |
|
56fbf60e9476
updated for version 7.3.1196
Bram Moolenaar <bram@vim.org>
parents:
4899
diff
changeset
|
5041 if (r != RA_MATCH) |
|
56fbf60e9476
updated for version 7.3.1196
Bram Moolenaar <bram@vim.org>
parents:
4899
diff
changeset
|
5042 status = r; |
| 7 | 5043 } |
| 5044 } | |
| 5045 } | |
| 5046 | |
| 5047 /* Matched the backref, skip over it. */ | |
| 5048 reginput += len; | |
| 5049 } | |
| 5050 break; | |
| 5051 | |
| 5052 #ifdef FEAT_SYN_HL | |
| 5053 case ZREF + 1: | |
| 5054 case ZREF + 2: | |
| 5055 case ZREF + 3: | |
| 5056 case ZREF + 4: | |
| 5057 case ZREF + 5: | |
| 5058 case ZREF + 6: | |
| 5059 case ZREF + 7: | |
| 5060 case ZREF + 8: | |
| 5061 case ZREF + 9: | |
| 5062 { | |
| 5063 int len; | |
| 5064 | |
| 5065 cleanup_zsubexpr(); | |
| 5066 no = op - ZREF; | |
| 5067 if (re_extmatch_in != NULL | |
| 5068 && re_extmatch_in->matches[no] != NULL) | |
| 5069 { | |
| 5070 len = (int)STRLEN(re_extmatch_in->matches[no]); | |
| 5071 if (cstrncmp(re_extmatch_in->matches[no], | |
| 5072 reginput, &len) != 0) | |
| 180 | 5073 status = RA_NOMATCH; |
| 5074 else | |
| 5075 reginput += len; | |
| 7 | 5076 } |
| 5077 else | |
| 5078 { | |
| 5079 /* Backref was not set: Match an empty string. */ | |
| 5080 } | |
| 5081 } | |
| 5082 break; | |
| 5083 #endif | |
| 5084 | |
| 5085 case BRANCH: | |
| 5086 { | |
| 5087 if (OP(next) != BRANCH) /* No choice. */ | |
| 5088 next = OPERAND(scan); /* Avoid recursion. */ | |
| 5089 else | |
| 5090 { | |
| 270 | 5091 rp = regstack_push(RS_BRANCH, scan); |
| 180 | 5092 if (rp == NULL) |
| 5093 status = RA_FAIL; | |
| 5094 else | |
| 5095 status = RA_BREAK; /* rest is below */ | |
| 7 | 5096 } |
| 5097 } | |
| 5098 break; | |
| 5099 | |
| 5100 case BRACE_LIMITS: | |
| 5101 { | |
| 5102 if (OP(next) == BRACE_SIMPLE) | |
| 5103 { | |
| 5104 bl_minval = OPERAND_MIN(scan); | |
| 5105 bl_maxval = OPERAND_MAX(scan); | |
| 5106 } | |
| 5107 else if (OP(next) >= BRACE_COMPLEX | |
| 5108 && OP(next) < BRACE_COMPLEX + 10) | |
| 5109 { | |
| 5110 no = OP(next) - BRACE_COMPLEX; | |
| 5111 brace_min[no] = OPERAND_MIN(scan); | |
| 5112 brace_max[no] = OPERAND_MAX(scan); | |
| 5113 brace_count[no] = 0; | |
| 5114 } | |
| 5115 else | |
| 5116 { | |
| 5117 EMSG(_(e_internal)); /* Shouldn't happen */ | |
| 180 | 5118 status = RA_FAIL; |
| 7 | 5119 } |
| 5120 } | |
| 5121 break; | |
| 5122 | |
| 5123 case BRACE_COMPLEX + 0: | |
| 5124 case BRACE_COMPLEX + 1: | |
| 5125 case BRACE_COMPLEX + 2: | |
| 5126 case BRACE_COMPLEX + 3: | |
| 5127 case BRACE_COMPLEX + 4: | |
| 5128 case BRACE_COMPLEX + 5: | |
| 5129 case BRACE_COMPLEX + 6: | |
| 5130 case BRACE_COMPLEX + 7: | |
| 5131 case BRACE_COMPLEX + 8: | |
| 5132 case BRACE_COMPLEX + 9: | |
| 5133 { | |
| 5134 no = op - BRACE_COMPLEX; | |
| 5135 ++brace_count[no]; | |
| 5136 | |
| 5137 /* If not matched enough times yet, try one more */ | |
| 5138 if (brace_count[no] <= (brace_min[no] <= brace_max[no] | |
| 180 | 5139 ? brace_min[no] : brace_max[no])) |
| 7 | 5140 { |
| 270 | 5141 rp = regstack_push(RS_BRCPLX_MORE, scan); |
| 180 | 5142 if (rp == NULL) |
| 5143 status = RA_FAIL; | |
| 5144 else | |
| 5145 { | |
| 5146 rp->rs_no = no; | |
| 233 | 5147 reg_save(&rp->rs_un.regsave, &backpos); |
| 180 | 5148 next = OPERAND(scan); |
| 5149 /* We continue and handle the result when done. */ | |
| 5150 } | |
| 5151 break; | |
| 7 | 5152 } |
| 5153 | |
| 5154 /* If matched enough times, may try matching some more */ | |
| 5155 if (brace_min[no] <= brace_max[no]) | |
| 5156 { | |
| 5157 /* Range is the normal way around, use longest match */ | |
| 5158 if (brace_count[no] <= brace_max[no]) | |
| 5159 { | |
| 270 | 5160 rp = regstack_push(RS_BRCPLX_LONG, scan); |
| 180 | 5161 if (rp == NULL) |
| 5162 status = RA_FAIL; | |
| 5163 else | |
| 5164 { | |
| 5165 rp->rs_no = no; | |
| 233 | 5166 reg_save(&rp->rs_un.regsave, &backpos); |
| 180 | 5167 next = OPERAND(scan); |
| 5168 /* We continue and handle the result when done. */ | |
| 5169 } | |
| 7 | 5170 } |
| 5171 } | |
| 5172 else | |
| 5173 { | |
| 5174 /* Range is backwards, use shortest match first */ | |
| 5175 if (brace_count[no] <= brace_min[no]) | |
| 5176 { | |
| 270 | 5177 rp = regstack_push(RS_BRCPLX_SHORT, scan); |
| 180 | 5178 if (rp == NULL) |
| 5179 status = RA_FAIL; | |
| 5180 else | |
| 5181 { | |
| 233 | 5182 reg_save(&rp->rs_un.regsave, &backpos); |
| 180 | 5183 /* We continue and handle the result when done. */ |
| 5184 } | |
| 7 | 5185 } |
| 5186 } | |
| 5187 } | |
| 5188 break; | |
| 5189 | |
| 5190 case BRACE_SIMPLE: | |
| 5191 case STAR: | |
| 5192 case PLUS: | |
| 5193 { | |
| 180 | 5194 regstar_T rst; |
| 7 | 5195 |
| 5196 /* | |
| 5197 * Lookahead to avoid useless match attempts when we know | |
| 5198 * what character comes next. | |
| 5199 */ | |
| 5200 if (OP(next) == EXACTLY) | |
| 5201 { | |
| 180 | 5202 rst.nextb = *OPERAND(next); |
| 7 | 5203 if (ireg_ic) |
| 5204 { | |
| 1347 | 5205 if (MB_ISUPPER(rst.nextb)) |
| 5206 rst.nextb_ic = MB_TOLOWER(rst.nextb); | |
| 7 | 5207 else |
| 1347 | 5208 rst.nextb_ic = MB_TOUPPER(rst.nextb); |
| 7 | 5209 } |
| 5210 else | |
| 180 | 5211 rst.nextb_ic = rst.nextb; |
| 7 | 5212 } |
| 5213 else | |
| 5214 { | |
| 180 | 5215 rst.nextb = NUL; |
| 5216 rst.nextb_ic = NUL; | |
| 7 | 5217 } |
| 5218 if (op != BRACE_SIMPLE) | |
| 5219 { | |
| 180 | 5220 rst.minval = (op == STAR) ? 0 : 1; |
| 5221 rst.maxval = MAX_LIMIT; | |
| 7 | 5222 } |
| 5223 else | |
| 5224 { | |
| 180 | 5225 rst.minval = bl_minval; |
| 5226 rst.maxval = bl_maxval; | |
| 7 | 5227 } |
| 5228 | |
| 5229 /* | |
| 5230 * When maxval > minval, try matching as much as possible, up | |
| 5231 * to maxval. When maxval < minval, try matching at least the | |
| 5232 * minimal number (since the range is backwards, that's also | |
| 5233 * maxval!). | |
| 5234 */ | |
| 180 | 5235 rst.count = regrepeat(OPERAND(scan), rst.maxval); |
| 7 | 5236 if (got_int) |
| 180 | 5237 { |
| 5238 status = RA_FAIL; | |
| 5239 break; | |
| 5240 } | |
| 5241 if (rst.minval <= rst.maxval | |
| 5242 ? rst.count >= rst.minval : rst.count >= rst.maxval) | |
| 7 | 5243 { |
| 180 | 5244 /* It could match. Prepare for trying to match what |
| 5245 * follows. The code is below. Parameters are stored in | |
| 5246 * a regstar_T on the regstack. */ | |
| 212 | 5247 if ((long)((unsigned)regstack.ga_len >> 10) >= p_mmp) |
| 189 | 5248 { |
| 5249 EMSG(_(e_maxmempat)); | |
| 5250 status = RA_FAIL; | |
| 5251 } | |
| 5252 else if (ga_grow(®stack, sizeof(regstar_T)) == FAIL) | |
| 180 | 5253 status = RA_FAIL; |
| 5254 else | |
| 7 | 5255 { |
| 180 | 5256 regstack.ga_len += sizeof(regstar_T); |
| 270 | 5257 rp = regstack_push(rst.minval <= rst.maxval |
| 233 | 5258 ? RS_STAR_LONG : RS_STAR_SHORT, scan); |
| 180 | 5259 if (rp == NULL) |
| 5260 status = RA_FAIL; | |
| 5261 else | |
| 7 | 5262 { |
| 180 | 5263 *(((regstar_T *)rp) - 1) = rst; |
| 5264 status = RA_BREAK; /* skip the restore bits */ | |
| 7 | 5265 } |
| 5266 } | |
| 5267 } | |
| 5268 else | |
| 180 | 5269 status = RA_NOMATCH; |
| 5270 | |
| 7 | 5271 } |
| 180 | 5272 break; |
| 7 | 5273 |
| 5274 case NOMATCH: | |
| 5275 case MATCH: | |
| 5276 case SUBPAT: | |
| 270 | 5277 rp = regstack_push(RS_NOMATCH, scan); |
| 180 | 5278 if (rp == NULL) |
| 5279 status = RA_FAIL; | |
| 5280 else | |
| 7 | 5281 { |
| 180 | 5282 rp->rs_no = op; |
| 233 | 5283 reg_save(&rp->rs_un.regsave, &backpos); |
| 180 | 5284 next = OPERAND(scan); |
| 5285 /* We continue and handle the result when done. */ | |
| 7 | 5286 } |
| 5287 break; | |
| 5288 | |
| 5289 case BEHIND: | |
| 5290 case NOBEHIND: | |
| 180 | 5291 /* Need a bit of room to store extra positions. */ |
| 212 | 5292 if ((long)((unsigned)regstack.ga_len >> 10) >= p_mmp) |
| 189 | 5293 { |
| 5294 EMSG(_(e_maxmempat)); | |
| 5295 status = RA_FAIL; | |
| 5296 } | |
| 5297 else if (ga_grow(®stack, sizeof(regbehind_T)) == FAIL) | |
| 180 | 5298 status = RA_FAIL; |
| 5299 else | |
| 7 | 5300 { |
| 180 | 5301 regstack.ga_len += sizeof(regbehind_T); |
| 270 | 5302 rp = regstack_push(RS_BEHIND1, scan); |
| 180 | 5303 if (rp == NULL) |
| 5304 status = RA_FAIL; | |
| 5305 else | |
| 7 | 5306 { |
| 1579 | 5307 /* Need to save the subexpr to be able to restore them |
| 5308 * when there is a match but we don't use it. */ | |
| 5309 save_subexpr(((regbehind_T *)rp) - 1); | |
| 5310 | |
| 180 | 5311 rp->rs_no = op; |
| 233 | 5312 reg_save(&rp->rs_un.regsave, &backpos); |
| 180 | 5313 /* First try if what follows matches. If it does then we |
| 5314 * check the behind match by looping. */ | |
| 7 | 5315 } |
| 5316 } | |
| 180 | 5317 break; |
| 7 | 5318 |
| 5319 case BHPOS: | |
| 5320 if (REG_MULTI) | |
| 5321 { | |
| 5322 if (behind_pos.rs_u.pos.col != (colnr_T)(reginput - regline) | |
| 5323 || behind_pos.rs_u.pos.lnum != reglnum) | |
| 180 | 5324 status = RA_NOMATCH; |
| 7 | 5325 } |
| 5326 else if (behind_pos.rs_u.ptr != reginput) | |
| 180 | 5327 status = RA_NOMATCH; |
| 7 | 5328 break; |
| 5329 | |
| 5330 case NEWL: | |
| 1018 | 5331 if ((c != NUL || !REG_MULTI || reglnum > reg_maxline |
| 5332 || reg_line_lbr) && (c != '\n' || !reg_line_lbr)) | |
| 180 | 5333 status = RA_NOMATCH; |
| 5334 else if (reg_line_lbr) | |
| 7 | 5335 ADVANCE_REGINPUT(); |
| 5336 else | |
| 5337 reg_nextline(); | |
| 5338 break; | |
| 5339 | |
| 5340 case END: | |
| 180 | 5341 status = RA_MATCH; /* Success! */ |
| 5342 break; | |
| 7 | 5343 |
| 5344 default: | |
| 5345 EMSG(_(e_re_corr)); | |
| 5346 #ifdef DEBUG | |
| 5347 printf("Illegal op code %d\n", op); | |
| 5348 #endif | |
| 180 | 5349 status = RA_FAIL; |
| 5350 break; | |
| 7 | 5351 } |
| 5352 } | |
| 5353 | |
| 180 | 5354 /* If we can't continue sequentially, break the inner loop. */ |
| 5355 if (status != RA_CONT) | |
| 5356 break; | |
| 5357 | |
| 5358 /* Continue in inner loop, advance to next item. */ | |
| 7 | 5359 scan = next; |
| 180 | 5360 |
| 5361 } /* end of inner loop */ | |
| 7 | 5362 |
| 5363 /* | |
| 180 | 5364 * If there is something on the regstack execute the code for the state. |
| 233 | 5365 * If the state is popped then loop and use the older state. |
| 7 | 5366 */ |
| 180 | 5367 while (regstack.ga_len > 0 && status != RA_FAIL) |
| 5368 { | |
| 5369 rp = (regitem_T *)((char *)regstack.ga_data + regstack.ga_len) - 1; | |
| 5370 switch (rp->rs_state) | |
| 5371 { | |
| 5372 case RS_NOPEN: | |
| 5373 /* Result is passed on as-is, simply pop the state. */ | |
| 270 | 5374 regstack_pop(&scan); |
| 180 | 5375 break; |
| 5376 | |
| 5377 case RS_MOPEN: | |
| 5378 /* Pop the state. Restore pointers when there is no match. */ | |
| 5379 if (status == RA_NOMATCH) | |
| 5380 restore_se(&rp->rs_un.sesave, ®_startpos[rp->rs_no], | |
| 5381 ®_startp[rp->rs_no]); | |
| 270 | 5382 regstack_pop(&scan); |
| 180 | 5383 break; |
| 5384 | |
| 5385 #ifdef FEAT_SYN_HL | |
| 5386 case RS_ZOPEN: | |
| 5387 /* Pop the state. Restore pointers when there is no match. */ | |
| 5388 if (status == RA_NOMATCH) | |
| 5389 restore_se(&rp->rs_un.sesave, ®_startzpos[rp->rs_no], | |
| 5390 ®_startzp[rp->rs_no]); | |
| 270 | 5391 regstack_pop(&scan); |
| 180 | 5392 break; |
| 5393 #endif | |
| 5394 | |
| 5395 case RS_MCLOSE: | |
| 5396 /* Pop the state. Restore pointers when there is no match. */ | |
| 5397 if (status == RA_NOMATCH) | |
| 5398 restore_se(&rp->rs_un.sesave, ®_endpos[rp->rs_no], | |
| 5399 ®_endp[rp->rs_no]); | |
| 270 | 5400 regstack_pop(&scan); |
| 180 | 5401 break; |
| 5402 | |
| 5403 #ifdef FEAT_SYN_HL | |
| 5404 case RS_ZCLOSE: | |
| 5405 /* Pop the state. Restore pointers when there is no match. */ | |
| 5406 if (status == RA_NOMATCH) | |
| 5407 restore_se(&rp->rs_un.sesave, ®_endzpos[rp->rs_no], | |
| 5408 ®_endzp[rp->rs_no]); | |
| 270 | 5409 regstack_pop(&scan); |
| 180 | 5410 break; |
| 5411 #endif | |
| 5412 | |
| 5413 case RS_BRANCH: | |
| 5414 if (status == RA_MATCH) | |
| 5415 /* this branch matched, use it */ | |
| 270 | 5416 regstack_pop(&scan); |
| 180 | 5417 else |
| 5418 { | |
| 5419 if (status != RA_BREAK) | |
| 5420 { | |
| 5421 /* After a non-matching branch: try next one. */ | |
| 233 | 5422 reg_restore(&rp->rs_un.regsave, &backpos); |
| 180 | 5423 scan = rp->rs_scan; |
| 5424 } | |
| 5425 if (scan == NULL || OP(scan) != BRANCH) | |
| 5426 { | |
| 5427 /* no more branches, didn't find a match */ | |
| 5428 status = RA_NOMATCH; | |
| 270 | 5429 regstack_pop(&scan); |
| 180 | 5430 } |
| 5431 else | |
| 5432 { | |
| 5433 /* Prepare to try a branch. */ | |
| 5434 rp->rs_scan = regnext(scan); | |
| 233 | 5435 reg_save(&rp->rs_un.regsave, &backpos); |
| 180 | 5436 scan = OPERAND(scan); |
| 5437 } | |
| 5438 } | |
| 5439 break; | |
| 5440 | |
| 5441 case RS_BRCPLX_MORE: | |
| 5442 /* Pop the state. Restore pointers when there is no match. */ | |
| 5443 if (status == RA_NOMATCH) | |
| 5444 { | |
| 233 | 5445 reg_restore(&rp->rs_un.regsave, &backpos); |
| 180 | 5446 --brace_count[rp->rs_no]; /* decrement match count */ |
| 5447 } | |
| 270 | 5448 regstack_pop(&scan); |
| 180 | 5449 break; |
| 5450 | |
| 5451 case RS_BRCPLX_LONG: | |
| 5452 /* Pop the state. Restore pointers when there is no match. */ | |
| 5453 if (status == RA_NOMATCH) | |
| 5454 { | |
| 5455 /* There was no match, but we did find enough matches. */ | |
| 233 | 5456 reg_restore(&rp->rs_un.regsave, &backpos); |
| 180 | 5457 --brace_count[rp->rs_no]; |
| 5458 /* continue with the items after "\{}" */ | |
| 5459 status = RA_CONT; | |
| 5460 } | |
| 270 | 5461 regstack_pop(&scan); |
| 180 | 5462 if (status == RA_CONT) |
| 5463 scan = regnext(scan); | |
| 5464 break; | |
| 5465 | |
| 5466 case RS_BRCPLX_SHORT: | |
| 5467 /* Pop the state. Restore pointers when there is no match. */ | |
| 5468 if (status == RA_NOMATCH) | |
| 5469 /* There was no match, try to match one more item. */ | |
| 233 | 5470 reg_restore(&rp->rs_un.regsave, &backpos); |
| 270 | 5471 regstack_pop(&scan); |
| 180 | 5472 if (status == RA_NOMATCH) |
| 5473 { | |
| 5474 scan = OPERAND(scan); | |
| 5475 status = RA_CONT; | |
| 5476 } | |
| 5477 break; | |
| 5478 | |
| 5479 case RS_NOMATCH: | |
| 5480 /* Pop the state. If the operand matches for NOMATCH or | |
| 5481 * doesn't match for MATCH/SUBPAT, we fail. Otherwise backup, | |
| 5482 * except for SUBPAT, and continue with the next item. */ | |
| 5483 if (status == (rp->rs_no == NOMATCH ? RA_MATCH : RA_NOMATCH)) | |
| 5484 status = RA_NOMATCH; | |
| 5485 else | |
| 5486 { | |
| 5487 status = RA_CONT; | |
| 233 | 5488 if (rp->rs_no != SUBPAT) /* zero-width */ |
| 5489 reg_restore(&rp->rs_un.regsave, &backpos); | |
| 180 | 5490 } |
| 270 | 5491 regstack_pop(&scan); |
| 180 | 5492 if (status == RA_CONT) |
| 5493 scan = regnext(scan); | |
| 5494 break; | |
| 5495 | |
| 5496 case RS_BEHIND1: | |
| 5497 if (status == RA_NOMATCH) | |
| 5498 { | |
| 270 | 5499 regstack_pop(&scan); |
| 180 | 5500 regstack.ga_len -= sizeof(regbehind_T); |
| 5501 } | |
| 5502 else | |
| 5503 { | |
| 5504 /* The stuff after BEHIND/NOBEHIND matches. Now try if | |
| 5505 * the behind part does (not) match before the current | |
| 5506 * position in the input. This must be done at every | |
| 5507 * position in the input and checking if the match ends at | |
| 5508 * the current position. */ | |
| 5509 | |
| 5510 /* save the position after the found match for next */ | |
| 233 | 5511 reg_save(&(((regbehind_T *)rp) - 1)->save_after, &backpos); |
| 180 | 5512 |
|
4579
7a2be4a39423
updated for version 7.3.1037
Bram Moolenaar <bram@vim.org>
parents:
4505
diff
changeset
|
5513 /* Start looking for a match with operand at the current |
| 1209 | 5514 * position. Go back one character until we find the |
| 180 | 5515 * result, hitting the start of the line or the previous |
| 5516 * line (for multi-line matching). | |
| 5517 * Set behind_pos to where the match should end, BHPOS | |
| 5518 * will match it. Save the current value. */ | |
| 5519 (((regbehind_T *)rp) - 1)->save_behind = behind_pos; | |
| 5520 behind_pos = rp->rs_un.regsave; | |
| 5521 | |
| 5522 rp->rs_state = RS_BEHIND2; | |
| 5523 | |
| 233 | 5524 reg_restore(&rp->rs_un.regsave, &backpos); |
|
4579
7a2be4a39423
updated for version 7.3.1037
Bram Moolenaar <bram@vim.org>
parents:
4505
diff
changeset
|
5525 scan = OPERAND(rp->rs_scan) + 4; |
| 180 | 5526 } |
| 5527 break; | |
| 5528 | |
| 5529 case RS_BEHIND2: | |
| 5530 /* | |
| 5531 * Looping for BEHIND / NOBEHIND match. | |
| 5532 */ | |
| 5533 if (status == RA_MATCH && reg_save_equal(&behind_pos)) | |
| 5534 { | |
| 5535 /* found a match that ends where "next" started */ | |
| 5536 behind_pos = (((regbehind_T *)rp) - 1)->save_behind; | |
| 5537 if (rp->rs_no == BEHIND) | |
| 233 | 5538 reg_restore(&(((regbehind_T *)rp) - 1)->save_after, |
| 5539 &backpos); | |
| 180 | 5540 else |
| 1579 | 5541 { |
| 5542 /* But we didn't want a match. Need to restore the | |
| 5543 * subexpr, because what follows matched, so they have | |
| 5544 * been set. */ | |
| 180 | 5545 status = RA_NOMATCH; |
| 1579 | 5546 restore_subexpr(((regbehind_T *)rp) - 1); |
| 5547 } | |
| 270 | 5548 regstack_pop(&scan); |
| 180 | 5549 regstack.ga_len -= sizeof(regbehind_T); |
| 5550 } | |
| 5551 else | |
| 5552 { | |
|
4579
7a2be4a39423
updated for version 7.3.1037
Bram Moolenaar <bram@vim.org>
parents:
4505
diff
changeset
|
5553 long limit; |
|
7a2be4a39423
updated for version 7.3.1037
Bram Moolenaar <bram@vim.org>
parents:
4505
diff
changeset
|
5554 |
| 1579 | 5555 /* No match or a match that doesn't end where we want it: Go |
| 5556 * back one character. May go to previous line once. */ | |
| 180 | 5557 no = OK; |
|
4579
7a2be4a39423
updated for version 7.3.1037
Bram Moolenaar <bram@vim.org>
parents:
4505
diff
changeset
|
5558 limit = OPERAND_MIN(rp->rs_scan); |
| 180 | 5559 if (REG_MULTI) |
| 5560 { | |
|
4682
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
5561 if (limit > 0 |
|
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
5562 && ((rp->rs_un.regsave.rs_u.pos.lnum |
|
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
5563 < behind_pos.rs_u.pos.lnum |
|
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
5564 ? (colnr_T)STRLEN(regline) |
|
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
5565 : behind_pos.rs_u.pos.col) |
|
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
5566 - 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
|
5567 no = FAIL; |
|
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
5568 else if (rp->rs_un.regsave.rs_u.pos.col == 0) |
| 180 | 5569 { |
| 5570 if (rp->rs_un.regsave.rs_u.pos.lnum | |
| 5571 < behind_pos.rs_u.pos.lnum | |
| 5572 || reg_getline( | |
| 5573 --rp->rs_un.regsave.rs_u.pos.lnum) | |
| 5574 == NULL) | |
| 5575 no = FAIL; | |
| 5576 else | |
| 5577 { | |
| 233 | 5578 reg_restore(&rp->rs_un.regsave, &backpos); |
| 180 | 5579 rp->rs_un.regsave.rs_u.pos.col = |
| 5580 (colnr_T)STRLEN(regline); | |
| 5581 } | |
| 5582 } | |
| 5583 else | |
|
4579
7a2be4a39423
updated for version 7.3.1037
Bram Moolenaar <bram@vim.org>
parents:
4505
diff
changeset
|
5584 { |
| 4176 | 5585 #ifdef FEAT_MBYTE |
|
4579
7a2be4a39423
updated for version 7.3.1037
Bram Moolenaar <bram@vim.org>
parents:
4505
diff
changeset
|
5586 if (has_mbyte) |
|
7a2be4a39423
updated for version 7.3.1037
Bram Moolenaar <bram@vim.org>
parents:
4505
diff
changeset
|
5587 rp->rs_un.regsave.rs_u.pos.col -= |
|
7a2be4a39423
updated for version 7.3.1037
Bram Moolenaar <bram@vim.org>
parents:
4505
diff
changeset
|
5588 (*mb_head_off)(regline, regline |
| 4176 | 5589 + rp->rs_un.regsave.rs_u.pos.col - 1) + 1; |
|
4579
7a2be4a39423
updated for version 7.3.1037
Bram Moolenaar <bram@vim.org>
parents:
4505
diff
changeset
|
5590 else |
|
7a2be4a39423
updated for version 7.3.1037
Bram Moolenaar <bram@vim.org>
parents:
4505
diff
changeset
|
5591 #endif |
|
7a2be4a39423
updated for version 7.3.1037
Bram Moolenaar <bram@vim.org>
parents:
4505
diff
changeset
|
5592 --rp->rs_un.regsave.rs_u.pos.col; |
|
7a2be4a39423
updated for version 7.3.1037
Bram Moolenaar <bram@vim.org>
parents:
4505
diff
changeset
|
5593 } |
| 180 | 5594 } |
| 5595 else | |
| 5596 { | |
| 5597 if (rp->rs_un.regsave.rs_u.ptr == regline) | |
| 5598 no = FAIL; | |
| 5599 else | |
|
4579
7a2be4a39423
updated for version 7.3.1037
Bram Moolenaar <bram@vim.org>
parents:
4505
diff
changeset
|
5600 { |
|
7a2be4a39423
updated for version 7.3.1037
Bram Moolenaar <bram@vim.org>
parents:
4505
diff
changeset
|
5601 mb_ptr_back(regline, rp->rs_un.regsave.rs_u.ptr); |
|
7a2be4a39423
updated for version 7.3.1037
Bram Moolenaar <bram@vim.org>
parents:
4505
diff
changeset
|
5602 if (limit > 0 && (long)(behind_pos.rs_u.ptr |
|
7a2be4a39423
updated for version 7.3.1037
Bram Moolenaar <bram@vim.org>
parents:
4505
diff
changeset
|
5603 - rp->rs_un.regsave.rs_u.ptr) > limit) |
|
7a2be4a39423
updated for version 7.3.1037
Bram Moolenaar <bram@vim.org>
parents:
4505
diff
changeset
|
5604 no = FAIL; |
|
7a2be4a39423
updated for version 7.3.1037
Bram Moolenaar <bram@vim.org>
parents:
4505
diff
changeset
|
5605 } |
| 180 | 5606 } |
| 5607 if (no == OK) | |
| 5608 { | |
| 5609 /* Advanced, prepare for finding match again. */ | |
| 233 | 5610 reg_restore(&rp->rs_un.regsave, &backpos); |
|
4579
7a2be4a39423
updated for version 7.3.1037
Bram Moolenaar <bram@vim.org>
parents:
4505
diff
changeset
|
5611 scan = OPERAND(rp->rs_scan) + 4; |
| 1579 | 5612 if (status == RA_MATCH) |
| 5613 { | |
| 5614 /* We did match, so subexpr may have been changed, | |
| 5615 * need to restore them for the next try. */ | |
| 5616 status = RA_NOMATCH; | |
| 5617 restore_subexpr(((regbehind_T *)rp) - 1); | |
| 5618 } | |
| 180 | 5619 } |
| 5620 else | |
| 5621 { | |
| 5622 /* Can't advance. For NOBEHIND that's a match. */ | |
| 5623 behind_pos = (((regbehind_T *)rp) - 1)->save_behind; | |
| 5624 if (rp->rs_no == NOBEHIND) | |
| 5625 { | |
| 233 | 5626 reg_restore(&(((regbehind_T *)rp) - 1)->save_after, |
| 5627 &backpos); | |
| 180 | 5628 status = RA_MATCH; |
| 5629 } | |
| 5630 else | |
| 1579 | 5631 { |
| 5632 /* We do want a proper match. Need to restore the | |
| 5633 * subexpr if we had a match, because they may have | |
| 5634 * been set. */ | |
| 5635 if (status == RA_MATCH) | |
| 5636 { | |
| 5637 status = RA_NOMATCH; | |
| 5638 restore_subexpr(((regbehind_T *)rp) - 1); | |
| 5639 } | |
| 5640 } | |
| 270 | 5641 regstack_pop(&scan); |
| 180 | 5642 regstack.ga_len -= sizeof(regbehind_T); |
| 5643 } | |
| 5644 } | |
| 5645 break; | |
| 5646 | |
| 5647 case RS_STAR_LONG: | |
| 5648 case RS_STAR_SHORT: | |
| 5649 { | |
| 5650 regstar_T *rst = ((regstar_T *)rp) - 1; | |
| 5651 | |
| 5652 if (status == RA_MATCH) | |
| 5653 { | |
| 270 | 5654 regstack_pop(&scan); |
| 180 | 5655 regstack.ga_len -= sizeof(regstar_T); |
| 5656 break; | |
| 5657 } | |
| 5658 | |
| 5659 /* Tried once already, restore input pointers. */ | |
| 5660 if (status != RA_BREAK) | |
| 233 | 5661 reg_restore(&rp->rs_un.regsave, &backpos); |
| 180 | 5662 |
| 5663 /* Repeat until we found a position where it could match. */ | |
| 5664 for (;;) | |
| 5665 { | |
| 5666 if (status != RA_BREAK) | |
| 5667 { | |
| 5668 /* Tried first position already, advance. */ | |
| 5669 if (rp->rs_state == RS_STAR_LONG) | |
| 5670 { | |
| 685 | 5671 /* Trying for longest match, but couldn't or |
| 5672 * didn't match -- back up one char. */ | |
| 180 | 5673 if (--rst->count < rst->minval) |
| 5674 break; | |
| 5675 if (reginput == regline) | |
| 5676 { | |
| 5677 /* backup to last char of previous line */ | |
| 5678 --reglnum; | |
| 5679 regline = reg_getline(reglnum); | |
| 5680 /* Just in case regrepeat() didn't count | |
| 5681 * right. */ | |
| 5682 if (regline == NULL) | |
| 5683 break; | |
| 5684 reginput = regline + STRLEN(regline); | |
| 5685 fast_breakcheck(); | |
| 5686 } | |
| 5687 else | |
| 5688 mb_ptr_back(regline, reginput); | |
| 5689 } | |
| 5690 else | |
| 5691 { | |
| 5692 /* Range is backwards, use shortest match first. | |
| 5693 * Careful: maxval and minval are exchanged! | |
| 5694 * Couldn't or didn't match: try advancing one | |
| 5695 * char. */ | |
| 5696 if (rst->count == rst->minval | |
| 5697 || regrepeat(OPERAND(rp->rs_scan), 1L) == 0) | |
| 5698 break; | |
| 5699 ++rst->count; | |
| 5700 } | |
| 5701 if (got_int) | |
| 5702 break; | |
| 5703 } | |
| 5704 else | |
| 5705 status = RA_NOMATCH; | |
| 5706 | |
| 5707 /* If it could match, try it. */ | |
| 5708 if (rst->nextb == NUL || *reginput == rst->nextb | |
| 5709 || *reginput == rst->nextb_ic) | |
| 5710 { | |
| 233 | 5711 reg_save(&rp->rs_un.regsave, &backpos); |
| 180 | 5712 scan = regnext(rp->rs_scan); |
| 5713 status = RA_CONT; | |
| 5714 break; | |
| 5715 } | |
| 5716 } | |
| 5717 if (status != RA_CONT) | |
| 5718 { | |
| 5719 /* Failed. */ | |
| 270 | 5720 regstack_pop(&scan); |
| 180 | 5721 regstack.ga_len -= sizeof(regstar_T); |
| 5722 status = RA_NOMATCH; | |
| 5723 } | |
| 5724 } | |
| 5725 break; | |
| 5726 } | |
| 5727 | |
| 685 | 5728 /* If we want to continue the inner loop or didn't pop a state |
| 5729 * continue matching loop */ | |
| 180 | 5730 if (status == RA_CONT || rp == (regitem_T *) |
| 5731 ((char *)regstack.ga_data + regstack.ga_len) - 1) | |
| 5732 break; | |
| 5733 } | |
| 5734 | |
| 189 | 5735 /* May need to continue with the inner loop, starting at "scan". */ |
| 180 | 5736 if (status == RA_CONT) |
| 5737 continue; | |
| 5738 | |
| 5739 /* | |
| 5740 * If the regstack is empty or something failed we are done. | |
| 5741 */ | |
| 5742 if (regstack.ga_len == 0 || status == RA_FAIL) | |
| 5743 { | |
| 5744 if (scan == NULL) | |
| 5745 { | |
| 5746 /* | |
| 5747 * We get here only if there's trouble -- normally "case END" is | |
| 5748 * the terminating point. | |
| 5749 */ | |
| 5750 EMSG(_(e_re_corr)); | |
| 7 | 5751 #ifdef DEBUG |
| 180 | 5752 printf("Premature EOL\n"); |
| 7 | 5753 #endif |
| 180 | 5754 } |
| 189 | 5755 if (status == RA_FAIL) |
| 5756 got_int = TRUE; | |
| 180 | 5757 return (status == RA_MATCH); |
| 5758 } | |
| 5759 | |
| 5760 } /* End of loop until the regstack is empty. */ | |
| 5761 | |
| 5762 /* NOTREACHED */ | |
| 5763 } | |
| 5764 | |
| 5765 /* | |
| 5766 * Push an item onto the regstack. | |
| 5767 * Returns pointer to new item. Returns NULL when out of memory. | |
| 5768 */ | |
| 5769 static regitem_T * | |
| 270 | 5770 regstack_push(state, scan) |
| 180 | 5771 regstate_T state; |
| 5772 char_u *scan; | |
| 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 | |
| 270 | 5796 regstack_pop(scan) |
| 180 | 5797 char_u **scan; |
| 5798 { | |
| 5799 regitem_T *rp; | |
| 5800 | |
| 270 | 5801 rp = (regitem_T *)((char *)regstack.ga_data + regstack.ga_len) - 1; |
| 180 | 5802 *scan = rp->rs_scan; |
| 5803 | |
| 270 | 5804 regstack.ga_len -= sizeof(regitem_T); |
| 7 | 5805 } |
| 5806 | |
| 5807 /* | |
| 5808 * regrepeat - repeatedly match something simple, return how many. | |
| 5809 * Advances reginput (and reglnum) to just after the matched chars. | |
| 5810 */ | |
| 5811 static int | |
| 5812 regrepeat(p, maxcount) | |
| 5813 char_u *p; | |
| 5814 long maxcount; /* maximum number of matches allowed */ | |
| 5815 { | |
| 5816 long count = 0; | |
| 5817 char_u *scan; | |
| 5818 char_u *opnd; | |
| 5819 int mask; | |
| 5820 int testval = 0; | |
| 5821 | |
| 5822 scan = reginput; /* Make local copy of reginput for speed. */ | |
| 5823 opnd = OPERAND(p); | |
| 5824 switch (OP(p)) | |
| 5825 { | |
| 5826 case ANY: | |
| 5827 case ANY + ADD_NL: | |
| 5828 while (count < maxcount) | |
| 5829 { | |
| 5830 /* Matching anything means we continue until end-of-line (or | |
| 5831 * end-of-file for ANY + ADD_NL), only limited by maxcount. */ | |
| 5832 while (*scan != NUL && count < maxcount) | |
| 5833 { | |
| 5834 ++count; | |
| 39 | 5835 mb_ptr_adv(scan); |
| 7 | 5836 } |
| 1018 | 5837 if (!REG_MULTI || !WITH_NL(OP(p)) || reglnum > reg_maxline |
| 5838 || reg_line_lbr || count == maxcount) | |
| 7 | 5839 break; |
| 5840 ++count; /* count the line-break */ | |
| 5841 reg_nextline(); | |
| 5842 scan = reginput; | |
| 5843 if (got_int) | |
| 5844 break; | |
| 5845 } | |
| 5846 break; | |
| 5847 | |
| 5848 case IDENT: | |
| 5849 case IDENT + ADD_NL: | |
| 5850 testval = TRUE; | |
| 5851 /*FALLTHROUGH*/ | |
| 5852 case SIDENT: | |
| 5853 case SIDENT + ADD_NL: | |
| 5854 while (count < maxcount) | |
| 5855 { | |
| 4466 | 5856 if (vim_isIDc(PTR2CHAR(scan)) && (testval || !VIM_ISDIGIT(*scan))) |
| 7 | 5857 { |
| 39 | 5858 mb_ptr_adv(scan); |
| 7 | 5859 } |
| 5860 else if (*scan == NUL) | |
| 5861 { | |
| 1018 | 5862 if (!REG_MULTI || !WITH_NL(OP(p)) || reglnum > reg_maxline |
| 5863 || reg_line_lbr) | |
| 7 | 5864 break; |
| 5865 reg_nextline(); | |
| 5866 scan = reginput; | |
| 5867 if (got_int) | |
| 5868 break; | |
| 5869 } | |
| 5870 else if (reg_line_lbr && *scan == '\n' && WITH_NL(OP(p))) | |
| 5871 ++scan; | |
| 5872 else | |
| 5873 break; | |
| 5874 ++count; | |
| 5875 } | |
| 5876 break; | |
| 5877 | |
| 5878 case KWORD: | |
| 5879 case KWORD + ADD_NL: | |
| 5880 testval = TRUE; | |
| 5881 /*FALLTHROUGH*/ | |
| 5882 case SKWORD: | |
| 5883 case SKWORD + ADD_NL: | |
| 5884 while (count < maxcount) | |
| 5885 { | |
| 4069 | 5886 if (vim_iswordp_buf(scan, reg_buf) |
| 5887 && (testval || !VIM_ISDIGIT(*scan))) | |
| 7 | 5888 { |
| 39 | 5889 mb_ptr_adv(scan); |
| 7 | 5890 } |
| 5891 else if (*scan == NUL) | |
| 5892 { | |
| 1018 | 5893 if (!REG_MULTI || !WITH_NL(OP(p)) || reglnum > reg_maxline |
| 5894 || reg_line_lbr) | |
| 7 | 5895 break; |
| 5896 reg_nextline(); | |
| 5897 scan = reginput; | |
| 5898 if (got_int) | |
| 5899 break; | |
| 5900 } | |
| 5901 else if (reg_line_lbr && *scan == '\n' && WITH_NL(OP(p))) | |
| 5902 ++scan; | |
| 5903 else | |
| 5904 break; | |
| 5905 ++count; | |
| 5906 } | |
| 5907 break; | |
| 5908 | |
| 5909 case FNAME: | |
| 5910 case FNAME + ADD_NL: | |
| 5911 testval = TRUE; | |
| 5912 /*FALLTHROUGH*/ | |
| 5913 case SFNAME: | |
| 5914 case SFNAME + ADD_NL: | |
| 5915 while (count < maxcount) | |
| 5916 { | |
| 4466 | 5917 if (vim_isfilec(PTR2CHAR(scan)) && (testval || !VIM_ISDIGIT(*scan))) |
| 7 | 5918 { |
| 39 | 5919 mb_ptr_adv(scan); |
| 7 | 5920 } |
| 5921 else if (*scan == NUL) | |
| 5922 { | |
| 1018 | 5923 if (!REG_MULTI || !WITH_NL(OP(p)) || reglnum > reg_maxline |
| 5924 || reg_line_lbr) | |
| 7 | 5925 break; |
| 5926 reg_nextline(); | |
| 5927 scan = reginput; | |
| 5928 if (got_int) | |
| 5929 break; | |
| 5930 } | |
| 5931 else if (reg_line_lbr && *scan == '\n' && WITH_NL(OP(p))) | |
| 5932 ++scan; | |
| 5933 else | |
| 5934 break; | |
| 5935 ++count; | |
| 5936 } | |
| 5937 break; | |
| 5938 | |
| 5939 case PRINT: | |
| 5940 case PRINT + ADD_NL: | |
| 5941 testval = TRUE; | |
| 5942 /*FALLTHROUGH*/ | |
| 5943 case SPRINT: | |
| 5944 case SPRINT + ADD_NL: | |
| 5945 while (count < maxcount) | |
| 5946 { | |
| 5947 if (*scan == NUL) | |
| 5948 { | |
| 1018 | 5949 if (!REG_MULTI || !WITH_NL(OP(p)) || reglnum > reg_maxline |
| 5950 || reg_line_lbr) | |
| 7 | 5951 break; |
| 5952 reg_nextline(); | |
| 5953 scan = reginput; | |
| 5954 if (got_int) | |
| 5955 break; | |
| 5956 } | |
|
5221
9982ec574beb
updated for version 7.4a.036
Bram Moolenaar <bram@vim.org>
parents:
4901
diff
changeset
|
5957 else if (vim_isprintc(PTR2CHAR(scan)) == 1 |
|
9982ec574beb
updated for version 7.4a.036
Bram Moolenaar <bram@vim.org>
parents:
4901
diff
changeset
|
5958 && (testval || !VIM_ISDIGIT(*scan))) |
| 7 | 5959 { |
| 39 | 5960 mb_ptr_adv(scan); |
| 7 | 5961 } |
| 5962 else if (reg_line_lbr && *scan == '\n' && WITH_NL(OP(p))) | |
| 5963 ++scan; | |
| 5964 else | |
| 5965 break; | |
| 5966 ++count; | |
| 5967 } | |
| 5968 break; | |
| 5969 | |
| 5970 case WHITE: | |
| 5971 case WHITE + ADD_NL: | |
| 5972 testval = mask = RI_WHITE; | |
| 5973 do_class: | |
| 5974 while (count < maxcount) | |
| 5975 { | |
| 5976 #ifdef FEAT_MBYTE | |
| 5977 int l; | |
| 5978 #endif | |
| 5979 if (*scan == NUL) | |
| 5980 { | |
| 1018 | 5981 if (!REG_MULTI || !WITH_NL(OP(p)) || reglnum > reg_maxline |
| 5982 || reg_line_lbr) | |
| 7 | 5983 break; |
| 5984 reg_nextline(); | |
| 5985 scan = reginput; | |
| 5986 if (got_int) | |
| 5987 break; | |
| 5988 } | |
| 5989 #ifdef FEAT_MBYTE | |
| 474 | 5990 else if (has_mbyte && (l = (*mb_ptr2len)(scan)) > 1) |
| 7 | 5991 { |
| 5992 if (testval != 0) | |
| 5993 break; | |
| 5994 scan += l; | |
| 5995 } | |
| 5996 #endif | |
| 5997 else if ((class_tab[*scan] & mask) == testval) | |
| 5998 ++scan; | |
| 5999 else if (reg_line_lbr && *scan == '\n' && WITH_NL(OP(p))) | |
| 6000 ++scan; | |
| 6001 else | |
| 6002 break; | |
| 6003 ++count; | |
| 6004 } | |
| 6005 break; | |
| 6006 | |
| 6007 case NWHITE: | |
| 6008 case NWHITE + ADD_NL: | |
| 6009 mask = RI_WHITE; | |
| 6010 goto do_class; | |
| 6011 case DIGIT: | |
| 6012 case DIGIT + ADD_NL: | |
| 6013 testval = mask = RI_DIGIT; | |
| 6014 goto do_class; | |
| 6015 case NDIGIT: | |
| 6016 case NDIGIT + ADD_NL: | |
| 6017 mask = RI_DIGIT; | |
| 6018 goto do_class; | |
| 6019 case HEX: | |
| 6020 case HEX + ADD_NL: | |
| 6021 testval = mask = RI_HEX; | |
| 6022 goto do_class; | |
| 6023 case NHEX: | |
| 6024 case NHEX + ADD_NL: | |
| 6025 mask = RI_HEX; | |
| 6026 goto do_class; | |
| 6027 case OCTAL: | |
| 6028 case OCTAL + ADD_NL: | |
| 6029 testval = mask = RI_OCTAL; | |
| 6030 goto do_class; | |
| 6031 case NOCTAL: | |
| 6032 case NOCTAL + ADD_NL: | |
| 6033 mask = RI_OCTAL; | |
| 6034 goto do_class; | |
| 6035 case WORD: | |
| 6036 case WORD + ADD_NL: | |
| 6037 testval = mask = RI_WORD; | |
| 6038 goto do_class; | |
| 6039 case NWORD: | |
| 6040 case NWORD + ADD_NL: | |
| 6041 mask = RI_WORD; | |
| 6042 goto do_class; | |
| 6043 case HEAD: | |
| 6044 case HEAD + ADD_NL: | |
| 6045 testval = mask = RI_HEAD; | |
| 6046 goto do_class; | |
| 6047 case NHEAD: | |
| 6048 case NHEAD + ADD_NL: | |
| 6049 mask = RI_HEAD; | |
| 6050 goto do_class; | |
| 6051 case ALPHA: | |
| 6052 case ALPHA + ADD_NL: | |
| 6053 testval = mask = RI_ALPHA; | |
| 6054 goto do_class; | |
| 6055 case NALPHA: | |
| 6056 case NALPHA + ADD_NL: | |
| 6057 mask = RI_ALPHA; | |
| 6058 goto do_class; | |
| 6059 case LOWER: | |
| 6060 case LOWER + ADD_NL: | |
| 6061 testval = mask = RI_LOWER; | |
| 6062 goto do_class; | |
| 6063 case NLOWER: | |
| 6064 case NLOWER + ADD_NL: | |
| 6065 mask = RI_LOWER; | |
| 6066 goto do_class; | |
| 6067 case UPPER: | |
| 6068 case UPPER + ADD_NL: | |
| 6069 testval = mask = RI_UPPER; | |
| 6070 goto do_class; | |
| 6071 case NUPPER: | |
| 6072 case NUPPER + ADD_NL: | |
| 6073 mask = RI_UPPER; | |
| 6074 goto do_class; | |
| 6075 | |
| 6076 case EXACTLY: | |
| 6077 { | |
| 6078 int cu, cl; | |
| 6079 | |
| 6080 /* This doesn't do a multi-byte character, because a MULTIBYTECODE | |
| 1347 | 6081 * would have been used for it. It does handle single-byte |
| 6082 * characters, such as latin1. */ | |
| 7 | 6083 if (ireg_ic) |
| 6084 { | |
| 1347 | 6085 cu = MB_TOUPPER(*opnd); |
| 6086 cl = MB_TOLOWER(*opnd); | |
| 7 | 6087 while (count < maxcount && (*scan == cu || *scan == cl)) |
| 6088 { | |
| 6089 count++; | |
| 6090 scan++; | |
| 6091 } | |
| 6092 } | |
| 6093 else | |
| 6094 { | |
| 6095 cu = *opnd; | |
| 6096 while (count < maxcount && *scan == cu) | |
| 6097 { | |
| 6098 count++; | |
| 6099 scan++; | |
| 6100 } | |
| 6101 } | |
| 6102 break; | |
| 6103 } | |
| 6104 | |
| 6105 #ifdef FEAT_MBYTE | |
| 6106 case MULTIBYTECODE: | |
| 6107 { | |
| 6108 int i, len, cf = 0; | |
| 6109 | |
| 6110 /* Safety check (just in case 'encoding' was changed since | |
| 6111 * compiling the program). */ | |
| 474 | 6112 if ((len = (*mb_ptr2len)(opnd)) > 1) |
| 7 | 6113 { |
| 6114 if (ireg_ic && enc_utf8) | |
| 6115 cf = utf_fold(utf_ptr2char(opnd)); | |
| 6116 while (count < maxcount) | |
| 6117 { | |
| 6118 for (i = 0; i < len; ++i) | |
| 6119 if (opnd[i] != scan[i]) | |
| 6120 break; | |
| 6121 if (i < len && (!ireg_ic || !enc_utf8 | |
| 6122 || utf_fold(utf_ptr2char(scan)) != cf)) | |
| 6123 break; | |
| 6124 scan += len; | |
| 6125 ++count; | |
| 6126 } | |
| 6127 } | |
| 6128 } | |
| 6129 break; | |
| 6130 #endif | |
| 6131 | |
| 6132 case ANYOF: | |
| 6133 case ANYOF + ADD_NL: | |
| 6134 testval = TRUE; | |
| 6135 /*FALLTHROUGH*/ | |
| 6136 | |
| 6137 case ANYBUT: | |
| 6138 case ANYBUT + ADD_NL: | |
| 6139 while (count < maxcount) | |
| 6140 { | |
| 6141 #ifdef FEAT_MBYTE | |
| 6142 int len; | |
| 6143 #endif | |
| 6144 if (*scan == NUL) | |
| 6145 { | |
| 1018 | 6146 if (!REG_MULTI || !WITH_NL(OP(p)) || reglnum > reg_maxline |
| 6147 || reg_line_lbr) | |
| 7 | 6148 break; |
| 6149 reg_nextline(); | |
| 6150 scan = reginput; | |
| 6151 if (got_int) | |
| 6152 break; | |
| 6153 } | |
| 6154 else if (reg_line_lbr && *scan == '\n' && WITH_NL(OP(p))) | |
| 6155 ++scan; | |
| 6156 #ifdef FEAT_MBYTE | |
| 474 | 6157 else if (has_mbyte && (len = (*mb_ptr2len)(scan)) > 1) |
| 7 | 6158 { |
| 6159 if ((cstrchr(opnd, (*mb_ptr2char)(scan)) == NULL) == testval) | |
| 6160 break; | |
| 6161 scan += len; | |
| 6162 } | |
| 6163 #endif | |
| 6164 else | |
| 6165 { | |
| 6166 if ((cstrchr(opnd, *scan) == NULL) == testval) | |
| 6167 break; | |
| 6168 ++scan; | |
| 6169 } | |
| 6170 ++count; | |
| 6171 } | |
| 6172 break; | |
| 6173 | |
| 6174 case NEWL: | |
| 6175 while (count < maxcount | |
| 1018 | 6176 && ((*scan == NUL && reglnum <= reg_maxline && !reg_line_lbr |
| 6177 && REG_MULTI) || (*scan == '\n' && reg_line_lbr))) | |
| 7 | 6178 { |
| 6179 count++; | |
| 6180 if (reg_line_lbr) | |
| 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 * | |
| 6209 regnext(p) | |
| 6210 char_u *p; | |
| 6211 { | |
| 6212 int offset; | |
| 6213 | |
| 2010 | 6214 if (p == JUST_CALC_SIZE || reg_toolong) |
| 7 | 6215 return NULL; |
| 6216 | |
| 6217 offset = NEXT(p); | |
| 6218 if (offset == 0) | |
| 6219 return NULL; | |
| 6220 | |
| 233 | 6221 if (OP(p) == BACK) |
| 7 | 6222 return p - offset; |
| 6223 else | |
| 6224 return p + offset; | |
| 6225 } | |
| 6226 | |
| 6227 /* | |
| 6228 * Check the regexp program for its magic number. | |
| 6229 * Return TRUE if it's wrong. | |
| 6230 */ | |
| 6231 static int | |
| 6232 prog_magic_wrong() | |
| 6233 { | |
| 4444 | 6234 regprog_T *prog; |
| 6235 | |
| 6236 prog = REG_MULTI ? reg_mmatch->regprog : reg_match->regprog; | |
| 6237 if (prog->engine == &nfa_regengine) | |
| 6238 /* For NFA matcher we don't check the magic */ | |
| 6239 return FALSE; | |
| 6240 | |
| 6241 if (UCHARAT(((bt_regprog_T *)prog)->program) != REGMAGIC) | |
| 7 | 6242 { |
| 6243 EMSG(_(e_re_corr)); | |
| 6244 return TRUE; | |
| 6245 } | |
| 6246 return FALSE; | |
| 6247 } | |
| 6248 | |
| 6249 /* | |
| 6250 * Cleanup the subexpressions, if this wasn't done yet. | |
| 6251 * This construction is used to clear the subexpressions only when they are | |
| 6252 * used (to increase speed). | |
| 6253 */ | |
| 6254 static void | |
| 6255 cleanup_subexpr() | |
| 6256 { | |
| 6257 if (need_clear_subexpr) | |
| 6258 { | |
| 6259 if (REG_MULTI) | |
| 6260 { | |
| 6261 /* Use 0xff to set lnum to -1 */ | |
| 6262 vim_memset(reg_startpos, 0xff, sizeof(lpos_T) * NSUBEXP); | |
| 6263 vim_memset(reg_endpos, 0xff, sizeof(lpos_T) * NSUBEXP); | |
| 6264 } | |
| 6265 else | |
| 6266 { | |
| 6267 vim_memset(reg_startp, 0, sizeof(char_u *) * NSUBEXP); | |
| 6268 vim_memset(reg_endp, 0, sizeof(char_u *) * NSUBEXP); | |
| 6269 } | |
| 6270 need_clear_subexpr = FALSE; | |
| 6271 } | |
| 6272 } | |
| 6273 | |
| 6274 #ifdef FEAT_SYN_HL | |
| 6275 static void | |
| 6276 cleanup_zsubexpr() | |
| 6277 { | |
| 6278 if (need_clear_zsubexpr) | |
| 6279 { | |
| 6280 if (REG_MULTI) | |
| 6281 { | |
| 6282 /* Use 0xff to set lnum to -1 */ | |
| 6283 vim_memset(reg_startzpos, 0xff, sizeof(lpos_T) * NSUBEXP); | |
| 6284 vim_memset(reg_endzpos, 0xff, sizeof(lpos_T) * NSUBEXP); | |
| 6285 } | |
| 6286 else | |
| 6287 { | |
| 6288 vim_memset(reg_startzp, 0, sizeof(char_u *) * NSUBEXP); | |
| 6289 vim_memset(reg_endzp, 0, sizeof(char_u *) * NSUBEXP); | |
| 6290 } | |
| 6291 need_clear_zsubexpr = FALSE; | |
| 6292 } | |
| 6293 } | |
| 6294 #endif | |
| 6295 | |
| 6296 /* | |
| 1579 | 6297 * Save the current subexpr to "bp", so that they can be restored |
| 6298 * later by restore_subexpr(). | |
| 6299 */ | |
| 6300 static void | |
| 6301 save_subexpr(bp) | |
| 6302 regbehind_T *bp; | |
| 6303 { | |
| 6304 int i; | |
| 6305 | |
| 1602 | 6306 /* When "need_clear_subexpr" is set we don't need to save the values, only |
| 6307 * remember that this flag needs to be set again when restoring. */ | |
| 6308 bp->save_need_clear_subexpr = need_clear_subexpr; | |
| 6309 if (!need_clear_subexpr) | |
| 1579 | 6310 { |
| 1602 | 6311 for (i = 0; i < NSUBEXP; ++i) |
| 1579 | 6312 { |
| 1602 | 6313 if (REG_MULTI) |
| 6314 { | |
| 6315 bp->save_start[i].se_u.pos = reg_startpos[i]; | |
| 6316 bp->save_end[i].se_u.pos = reg_endpos[i]; | |
| 6317 } | |
| 6318 else | |
| 6319 { | |
| 6320 bp->save_start[i].se_u.ptr = reg_startp[i]; | |
| 6321 bp->save_end[i].se_u.ptr = reg_endp[i]; | |
| 6322 } | |
| 1579 | 6323 } |
| 6324 } | |
| 6325 } | |
| 6326 | |
| 6327 /* | |
| 6328 * Restore the subexpr from "bp". | |
| 6329 */ | |
| 6330 static void | |
| 6331 restore_subexpr(bp) | |
| 6332 regbehind_T *bp; | |
| 6333 { | |
| 6334 int i; | |
| 6335 | |
| 1602 | 6336 /* Only need to restore saved values when they are not to be cleared. */ |
| 6337 need_clear_subexpr = bp->save_need_clear_subexpr; | |
| 6338 if (!need_clear_subexpr) | |
| 1579 | 6339 { |
| 1602 | 6340 for (i = 0; i < NSUBEXP; ++i) |
| 1579 | 6341 { |
| 1602 | 6342 if (REG_MULTI) |
| 6343 { | |
| 6344 reg_startpos[i] = bp->save_start[i].se_u.pos; | |
| 6345 reg_endpos[i] = bp->save_end[i].se_u.pos; | |
| 6346 } | |
| 6347 else | |
| 6348 { | |
| 6349 reg_startp[i] = bp->save_start[i].se_u.ptr; | |
| 6350 reg_endp[i] = bp->save_end[i].se_u.ptr; | |
| 6351 } | |
| 1579 | 6352 } |
| 6353 } | |
| 6354 } | |
| 6355 | |
| 6356 /* | |
| 7 | 6357 * Advance reglnum, regline and reginput to the next line. |
| 6358 */ | |
| 6359 static void | |
| 6360 reg_nextline() | |
| 6361 { | |
| 6362 regline = reg_getline(++reglnum); | |
| 6363 reginput = regline; | |
| 6364 fast_breakcheck(); | |
| 6365 } | |
| 6366 | |
| 6367 /* | |
| 6368 * Save the input line and position in a regsave_T. | |
| 6369 */ | |
| 6370 static void | |
| 233 | 6371 reg_save(save, gap) |
| 7 | 6372 regsave_T *save; |
| 233 | 6373 garray_T *gap; |
| 7 | 6374 { |
| 6375 if (REG_MULTI) | |
| 6376 { | |
| 6377 save->rs_u.pos.col = (colnr_T)(reginput - regline); | |
| 6378 save->rs_u.pos.lnum = reglnum; | |
| 6379 } | |
| 6380 else | |
| 6381 save->rs_u.ptr = reginput; | |
| 233 | 6382 save->rs_len = gap->ga_len; |
| 7 | 6383 } |
| 6384 | |
| 6385 /* | |
| 6386 * Restore the input line and position from a regsave_T. | |
| 6387 */ | |
| 6388 static void | |
| 233 | 6389 reg_restore(save, gap) |
| 7 | 6390 regsave_T *save; |
| 233 | 6391 garray_T *gap; |
| 7 | 6392 { |
| 6393 if (REG_MULTI) | |
| 6394 { | |
| 6395 if (reglnum != save->rs_u.pos.lnum) | |
| 6396 { | |
| 6397 /* only call reg_getline() when the line number changed to save | |
| 6398 * a bit of time */ | |
| 6399 reglnum = save->rs_u.pos.lnum; | |
| 6400 regline = reg_getline(reglnum); | |
| 6401 } | |
| 6402 reginput = regline + save->rs_u.pos.col; | |
| 6403 } | |
| 6404 else | |
| 6405 reginput = save->rs_u.ptr; | |
| 233 | 6406 gap->ga_len = save->rs_len; |
| 7 | 6407 } |
| 6408 | |
| 6409 /* | |
| 6410 * Return TRUE if current position is equal to saved position. | |
| 6411 */ | |
| 6412 static int | |
| 6413 reg_save_equal(save) | |
| 6414 regsave_T *save; | |
| 6415 { | |
| 6416 if (REG_MULTI) | |
| 6417 return reglnum == save->rs_u.pos.lnum | |
| 6418 && reginput == regline + save->rs_u.pos.col; | |
| 6419 return reginput == save->rs_u.ptr; | |
| 6420 } | |
| 6421 | |
| 6422 /* | |
| 6423 * Tentatively set the sub-expression start to the current position (after | |
| 6424 * calling regmatch() they will have changed). Need to save the existing | |
| 6425 * values for when there is no match. | |
| 6426 * Use se_save() to use pointer (save_se_multi()) or position (save_se_one()), | |
| 6427 * depending on REG_MULTI. | |
| 6428 */ | |
| 6429 static void | |
| 6430 save_se_multi(savep, posp) | |
| 6431 save_se_T *savep; | |
| 6432 lpos_T *posp; | |
| 6433 { | |
| 6434 savep->se_u.pos = *posp; | |
| 6435 posp->lnum = reglnum; | |
| 6436 posp->col = (colnr_T)(reginput - regline); | |
| 6437 } | |
| 6438 | |
| 6439 static void | |
| 6440 save_se_one(savep, pp) | |
| 6441 save_se_T *savep; | |
| 6442 char_u **pp; | |
| 6443 { | |
| 6444 savep->se_u.ptr = *pp; | |
| 6445 *pp = reginput; | |
| 6446 } | |
| 6447 | |
| 6448 /* | |
| 6449 * Compare a number with the operand of RE_LNUM, RE_COL or RE_VCOL. | |
| 6450 */ | |
| 6451 static int | |
| 6452 re_num_cmp(val, scan) | |
| 6453 long_u val; | |
| 6454 char_u *scan; | |
| 6455 { | |
| 6456 long_u n = OPERAND_MIN(scan); | |
| 6457 | |
| 6458 if (OPERAND_CMP(scan) == '>') | |
| 6459 return val > n; | |
| 6460 if (OPERAND_CMP(scan) == '<') | |
| 6461 return val < n; | |
| 6462 return val == n; | |
| 6463 } | |
| 6464 | |
|
4891
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6465 /* |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6466 * Check whether a backreference matches. |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6467 * Returns RA_FAIL, RA_NOMATCH or RA_MATCH. |
| 5504 | 6468 * If "bytelen" is not NULL, it is set to the byte length of the match in the |
| 6469 * last line. | |
|
4891
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6470 */ |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6471 static int |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6472 match_with_backref(start_lnum, start_col, end_lnum, end_col, bytelen) |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6473 linenr_T start_lnum; |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6474 colnr_T start_col; |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6475 linenr_T end_lnum; |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6476 colnr_T end_col; |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6477 int *bytelen; |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6478 { |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6479 linenr_T clnum = start_lnum; |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6480 colnr_T ccol = start_col; |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6481 int len; |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6482 char_u *p; |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6483 |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6484 if (bytelen != NULL) |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6485 *bytelen = 0; |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6486 for (;;) |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6487 { |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6488 /* Since getting one line may invalidate the other, need to make copy. |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6489 * Slow! */ |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6490 if (regline != reg_tofree) |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6491 { |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6492 len = (int)STRLEN(regline); |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6493 if (reg_tofree == NULL || len >= (int)reg_tofreelen) |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6494 { |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6495 len += 50; /* get some extra */ |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6496 vim_free(reg_tofree); |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6497 reg_tofree = alloc(len); |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6498 if (reg_tofree == NULL) |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6499 return RA_FAIL; /* out of memory!*/ |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6500 reg_tofreelen = len; |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6501 } |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6502 STRCPY(reg_tofree, regline); |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6503 reginput = reg_tofree + (reginput - regline); |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6504 regline = reg_tofree; |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6505 } |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6506 |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6507 /* Get the line to compare with. */ |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6508 p = reg_getline(clnum); |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6509 if (clnum == end_lnum) |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6510 len = end_col - ccol; |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6511 else |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6512 len = (int)STRLEN(p + ccol); |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6513 |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6514 if (cstrncmp(p + ccol, reginput, &len) != 0) |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6515 return RA_NOMATCH; /* doesn't match */ |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6516 if (bytelen != NULL) |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6517 *bytelen += len; |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6518 if (clnum == end_lnum) |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6519 break; /* match and at end! */ |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6520 if (reglnum >= reg_maxline) |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6521 return RA_NOMATCH; /* text too short */ |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6522 |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6523 /* Advance to next line. */ |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6524 reg_nextline(); |
| 5504 | 6525 if (bytelen != NULL) |
| 6526 *bytelen = 0; | |
|
4891
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6527 ++clnum; |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6528 ccol = 0; |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6529 if (got_int) |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6530 return RA_FAIL; |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6531 } |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6532 |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6533 /* 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
|
6534 * that should not matter. */ |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6535 return RA_MATCH; |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
6536 } |
| 7 | 6537 |
| 4444 | 6538 #ifdef BT_REGEXP_DUMP |
| 7 | 6539 |
| 6540 /* | |
| 6541 * regdump - dump a regexp onto stdout in vaguely comprehensible form | |
| 6542 */ | |
| 6543 static void | |
| 6544 regdump(pattern, r) | |
| 6545 char_u *pattern; | |
| 4444 | 6546 bt_regprog_T *r; |
| 7 | 6547 { |
| 6548 char_u *s; | |
| 6549 int op = EXACTLY; /* Arbitrary non-END op. */ | |
| 6550 char_u *next; | |
| 6551 char_u *end = NULL; | |
| 4444 | 6552 FILE *f; |
| 6553 | |
| 6554 #ifdef BT_REGEXP_LOG | |
| 6555 f = fopen("bt_regexp_log.log", "a"); | |
| 6556 #else | |
| 6557 f = stdout; | |
| 6558 #endif | |
| 6559 if (f == NULL) | |
| 6560 return; | |
| 6561 fprintf(f, "-------------------------------------\n\r\nregcomp(%s):\r\n", pattern); | |
| 7 | 6562 |
| 6563 s = r->program + 1; | |
| 6564 /* | |
| 6565 * Loop until we find the END that isn't before a referred next (an END | |
| 6566 * can also appear in a NOMATCH operand). | |
| 6567 */ | |
| 6568 while (op != END || s <= end) | |
| 6569 { | |
| 6570 op = OP(s); | |
| 4444 | 6571 fprintf(f, "%2d%s", (int)(s - r->program), regprop(s)); /* Where, what. */ |
| 7 | 6572 next = regnext(s); |
| 6573 if (next == NULL) /* Next ptr. */ | |
| 4444 | 6574 fprintf(f, "(0)"); |
| 7 | 6575 else |
| 4444 | 6576 fprintf(f, "(%d)", (int)((s - r->program) + (next - s))); |
| 7 | 6577 if (end < next) |
| 6578 end = next; | |
| 6579 if (op == BRACE_LIMITS) | |
| 6580 { | |
|
4746
d1376091d18b
updated for version 7.3.1120
Bram Moolenaar <bram@vim.org>
parents:
4744
diff
changeset
|
6581 /* Two ints */ |
| 4444 | 6582 fprintf(f, " minval %ld, maxval %ld", OPERAND_MIN(s), OPERAND_MAX(s)); |
| 7 | 6583 s += 8; |
| 6584 } | |
|
4746
d1376091d18b
updated for version 7.3.1120
Bram Moolenaar <bram@vim.org>
parents:
4744
diff
changeset
|
6585 else if (op == BEHIND || op == NOBEHIND) |
|
d1376091d18b
updated for version 7.3.1120
Bram Moolenaar <bram@vim.org>
parents:
4744
diff
changeset
|
6586 { |
|
d1376091d18b
updated for version 7.3.1120
Bram Moolenaar <bram@vim.org>
parents:
4744
diff
changeset
|
6587 /* one int */ |
|
d1376091d18b
updated for version 7.3.1120
Bram Moolenaar <bram@vim.org>
parents:
4744
diff
changeset
|
6588 fprintf(f, " count %ld", OPERAND_MIN(s)); |
|
d1376091d18b
updated for version 7.3.1120
Bram Moolenaar <bram@vim.org>
parents:
4744
diff
changeset
|
6589 s += 4; |
|
d1376091d18b
updated for version 7.3.1120
Bram Moolenaar <bram@vim.org>
parents:
4744
diff
changeset
|
6590 } |
|
4770
b20dbf3a5370
updated for version 7.3.1132
Bram Moolenaar <bram@vim.org>
parents:
4762
diff
changeset
|
6591 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
|
6592 { |
|
b20dbf3a5370
updated for version 7.3.1132
Bram Moolenaar <bram@vim.org>
parents:
4762
diff
changeset
|
6593 /* one int plus comperator */ |
|
b20dbf3a5370
updated for version 7.3.1132
Bram Moolenaar <bram@vim.org>
parents:
4762
diff
changeset
|
6594 fprintf(f, " count %ld", OPERAND_MIN(s)); |
|
b20dbf3a5370
updated for version 7.3.1132
Bram Moolenaar <bram@vim.org>
parents:
4762
diff
changeset
|
6595 s += 5; |
|
b20dbf3a5370
updated for version 7.3.1132
Bram Moolenaar <bram@vim.org>
parents:
4762
diff
changeset
|
6596 } |
| 7 | 6597 s += 3; |
| 6598 if (op == ANYOF || op == ANYOF + ADD_NL | |
| 6599 || op == ANYBUT || op == ANYBUT + ADD_NL | |
| 6600 || op == EXACTLY) | |
| 6601 { | |
| 6602 /* Literal string, where present. */ | |
| 4444 | 6603 fprintf(f, "\nxxxxxxxxx\n"); |
| 7 | 6604 while (*s != NUL) |
| 4444 | 6605 fprintf(f, "%c", *s++); |
| 6606 fprintf(f, "\nxxxxxxxxx\n"); | |
| 7 | 6607 s++; |
| 6608 } | |
| 4444 | 6609 fprintf(f, "\r\n"); |
| 7 | 6610 } |
| 6611 | |
| 6612 /* Header fields of interest. */ | |
| 6613 if (r->regstart != NUL) | |
| 4444 | 6614 fprintf(f, "start `%s' 0x%x; ", r->regstart < 256 |
| 7 | 6615 ? (char *)transchar(r->regstart) |
| 6616 : "multibyte", r->regstart); | |
| 6617 if (r->reganch) | |
| 4444 | 6618 fprintf(f, "anchored; "); |
| 7 | 6619 if (r->regmust != NULL) |
| 4444 | 6620 fprintf(f, "must have \"%s\"", r->regmust); |
| 6621 fprintf(f, "\r\n"); | |
| 6622 | |
| 6623 #ifdef BT_REGEXP_LOG | |
| 6624 fclose(f); | |
| 6625 #endif | |
| 7 | 6626 } |
| 4444 | 6627 #endif /* BT_REGEXP_DUMP */ |
| 6628 | |
| 6629 #ifdef DEBUG | |
| 7 | 6630 /* |
| 6631 * regprop - printable representation of opcode | |
| 6632 */ | |
| 6633 static char_u * | |
| 6634 regprop(op) | |
| 6635 char_u *op; | |
| 6636 { | |
| 4444 | 6637 char *p; |
| 6638 static char buf[50]; | |
| 6639 | |
| 6640 STRCPY(buf, ":"); | |
| 6641 | |
| 6642 switch ((int) OP(op)) | |
| 7 | 6643 { |
| 6644 case BOL: | |
| 6645 p = "BOL"; | |
| 6646 break; | |
| 6647 case EOL: | |
| 6648 p = "EOL"; | |
| 6649 break; | |
| 6650 case RE_BOF: | |
| 6651 p = "BOF"; | |
| 6652 break; | |
| 6653 case RE_EOF: | |
| 6654 p = "EOF"; | |
| 6655 break; | |
| 6656 case CURSOR: | |
| 6657 p = "CURSOR"; | |
| 6658 break; | |
| 639 | 6659 case RE_VISUAL: |
| 6660 p = "RE_VISUAL"; | |
| 6661 break; | |
| 7 | 6662 case RE_LNUM: |
| 6663 p = "RE_LNUM"; | |
| 6664 break; | |
| 639 | 6665 case RE_MARK: |
| 6666 p = "RE_MARK"; | |
| 6667 break; | |
| 7 | 6668 case RE_COL: |
| 6669 p = "RE_COL"; | |
| 6670 break; | |
| 6671 case RE_VCOL: | |
| 6672 p = "RE_VCOL"; | |
| 6673 break; | |
| 6674 case BOW: | |
| 6675 p = "BOW"; | |
| 6676 break; | |
| 6677 case EOW: | |
| 6678 p = "EOW"; | |
| 6679 break; | |
| 6680 case ANY: | |
| 6681 p = "ANY"; | |
| 6682 break; | |
| 6683 case ANY + ADD_NL: | |
| 6684 p = "ANY+NL"; | |
| 6685 break; | |
| 6686 case ANYOF: | |
| 6687 p = "ANYOF"; | |
| 6688 break; | |
| 6689 case ANYOF + ADD_NL: | |
| 6690 p = "ANYOF+NL"; | |
| 6691 break; | |
| 6692 case ANYBUT: | |
| 6693 p = "ANYBUT"; | |
| 6694 break; | |
| 6695 case ANYBUT + ADD_NL: | |
| 6696 p = "ANYBUT+NL"; | |
| 6697 break; | |
| 6698 case IDENT: | |
| 6699 p = "IDENT"; | |
| 6700 break; | |
| 6701 case IDENT + ADD_NL: | |
| 6702 p = "IDENT+NL"; | |
| 6703 break; | |
| 6704 case SIDENT: | |
| 6705 p = "SIDENT"; | |
| 6706 break; | |
| 6707 case SIDENT + ADD_NL: | |
| 6708 p = "SIDENT+NL"; | |
| 6709 break; | |
| 6710 case KWORD: | |
| 6711 p = "KWORD"; | |
| 6712 break; | |
| 6713 case KWORD + ADD_NL: | |
| 6714 p = "KWORD+NL"; | |
| 6715 break; | |
| 6716 case SKWORD: | |
| 6717 p = "SKWORD"; | |
| 6718 break; | |
| 6719 case SKWORD + ADD_NL: | |
| 6720 p = "SKWORD+NL"; | |
| 6721 break; | |
| 6722 case FNAME: | |
| 6723 p = "FNAME"; | |
| 6724 break; | |
| 6725 case FNAME + ADD_NL: | |
| 6726 p = "FNAME+NL"; | |
| 6727 break; | |
| 6728 case SFNAME: | |
| 6729 p = "SFNAME"; | |
| 6730 break; | |
| 6731 case SFNAME + ADD_NL: | |
| 6732 p = "SFNAME+NL"; | |
| 6733 break; | |
| 6734 case PRINT: | |
| 6735 p = "PRINT"; | |
| 6736 break; | |
| 6737 case PRINT + ADD_NL: | |
| 6738 p = "PRINT+NL"; | |
| 6739 break; | |
| 6740 case SPRINT: | |
| 6741 p = "SPRINT"; | |
| 6742 break; | |
| 6743 case SPRINT + ADD_NL: | |
| 6744 p = "SPRINT+NL"; | |
| 6745 break; | |
| 6746 case WHITE: | |
| 6747 p = "WHITE"; | |
| 6748 break; | |
| 6749 case WHITE + ADD_NL: | |
| 6750 p = "WHITE+NL"; | |
| 6751 break; | |
| 6752 case NWHITE: | |
| 6753 p = "NWHITE"; | |
| 6754 break; | |
| 6755 case NWHITE + ADD_NL: | |
| 6756 p = "NWHITE+NL"; | |
| 6757 break; | |
| 6758 case DIGIT: | |
| 6759 p = "DIGIT"; | |
| 6760 break; | |
| 6761 case DIGIT + ADD_NL: | |
| 6762 p = "DIGIT+NL"; | |
| 6763 break; | |
| 6764 case NDIGIT: | |
| 6765 p = "NDIGIT"; | |
| 6766 break; | |
| 6767 case NDIGIT + ADD_NL: | |
| 6768 p = "NDIGIT+NL"; | |
| 6769 break; | |
| 6770 case HEX: | |
| 6771 p = "HEX"; | |
| 6772 break; | |
| 6773 case HEX + ADD_NL: | |
| 6774 p = "HEX+NL"; | |
| 6775 break; | |
| 6776 case NHEX: | |
| 6777 p = "NHEX"; | |
| 6778 break; | |
| 6779 case NHEX + ADD_NL: | |
| 6780 p = "NHEX+NL"; | |
| 6781 break; | |
| 6782 case OCTAL: | |
| 6783 p = "OCTAL"; | |
| 6784 break; | |
| 6785 case OCTAL + ADD_NL: | |
| 6786 p = "OCTAL+NL"; | |
| 6787 break; | |
| 6788 case NOCTAL: | |
| 6789 p = "NOCTAL"; | |
| 6790 break; | |
| 6791 case NOCTAL + ADD_NL: | |
| 6792 p = "NOCTAL+NL"; | |
| 6793 break; | |
| 6794 case WORD: | |
| 6795 p = "WORD"; | |
| 6796 break; | |
| 6797 case WORD + ADD_NL: | |
| 6798 p = "WORD+NL"; | |
| 6799 break; | |
| 6800 case NWORD: | |
| 6801 p = "NWORD"; | |
| 6802 break; | |
| 6803 case NWORD + ADD_NL: | |
| 6804 p = "NWORD+NL"; | |
| 6805 break; | |
| 6806 case HEAD: | |
| 6807 p = "HEAD"; | |
| 6808 break; | |
| 6809 case HEAD + ADD_NL: | |
| 6810 p = "HEAD+NL"; | |
| 6811 break; | |
| 6812 case NHEAD: | |
| 6813 p = "NHEAD"; | |
| 6814 break; | |
| 6815 case NHEAD + ADD_NL: | |
| 6816 p = "NHEAD+NL"; | |
| 6817 break; | |
| 6818 case ALPHA: | |
| 6819 p = "ALPHA"; | |
| 6820 break; | |
| 6821 case ALPHA + ADD_NL: | |
| 6822 p = "ALPHA+NL"; | |
| 6823 break; | |
| 6824 case NALPHA: | |
| 6825 p = "NALPHA"; | |
| 6826 break; | |
| 6827 case NALPHA + ADD_NL: | |
| 6828 p = "NALPHA+NL"; | |
| 6829 break; | |
| 6830 case LOWER: | |
| 6831 p = "LOWER"; | |
| 6832 break; | |
| 6833 case LOWER + ADD_NL: | |
| 6834 p = "LOWER+NL"; | |
| 6835 break; | |
| 6836 case NLOWER: | |
| 6837 p = "NLOWER"; | |
| 6838 break; | |
| 6839 case NLOWER + ADD_NL: | |
| 6840 p = "NLOWER+NL"; | |
| 6841 break; | |
| 6842 case UPPER: | |
| 6843 p = "UPPER"; | |
| 6844 break; | |
| 6845 case UPPER + ADD_NL: | |
| 6846 p = "UPPER+NL"; | |
| 6847 break; | |
| 6848 case NUPPER: | |
| 6849 p = "NUPPER"; | |
| 6850 break; | |
| 6851 case NUPPER + ADD_NL: | |
| 6852 p = "NUPPER+NL"; | |
| 6853 break; | |
| 6854 case BRANCH: | |
| 6855 p = "BRANCH"; | |
| 6856 break; | |
| 6857 case EXACTLY: | |
| 6858 p = "EXACTLY"; | |
| 6859 break; | |
| 6860 case NOTHING: | |
| 6861 p = "NOTHING"; | |
| 6862 break; | |
| 6863 case BACK: | |
| 6864 p = "BACK"; | |
| 6865 break; | |
| 6866 case END: | |
| 6867 p = "END"; | |
| 6868 break; | |
| 6869 case MOPEN + 0: | |
| 6870 p = "MATCH START"; | |
| 6871 break; | |
| 6872 case MOPEN + 1: | |
| 6873 case MOPEN + 2: | |
| 6874 case MOPEN + 3: | |
| 6875 case MOPEN + 4: | |
| 6876 case MOPEN + 5: | |
| 6877 case MOPEN + 6: | |
| 6878 case MOPEN + 7: | |
| 6879 case MOPEN + 8: | |
| 6880 case MOPEN + 9: | |
| 6881 sprintf(buf + STRLEN(buf), "MOPEN%d", OP(op) - MOPEN); | |
| 6882 p = NULL; | |
| 6883 break; | |
| 6884 case MCLOSE + 0: | |
| 6885 p = "MATCH END"; | |
| 6886 break; | |
| 6887 case MCLOSE + 1: | |
| 6888 case MCLOSE + 2: | |
| 6889 case MCLOSE + 3: | |
| 6890 case MCLOSE + 4: | |
| 6891 case MCLOSE + 5: | |
| 6892 case MCLOSE + 6: | |
| 6893 case MCLOSE + 7: | |
| 6894 case MCLOSE + 8: | |
| 6895 case MCLOSE + 9: | |
| 6896 sprintf(buf + STRLEN(buf), "MCLOSE%d", OP(op) - MCLOSE); | |
| 6897 p = NULL; | |
| 6898 break; | |
| 6899 case BACKREF + 1: | |
| 6900 case BACKREF + 2: | |
| 6901 case BACKREF + 3: | |
| 6902 case BACKREF + 4: | |
| 6903 case BACKREF + 5: | |
| 6904 case BACKREF + 6: | |
| 6905 case BACKREF + 7: | |
| 6906 case BACKREF + 8: | |
| 6907 case BACKREF + 9: | |
| 6908 sprintf(buf + STRLEN(buf), "BACKREF%d", OP(op) - BACKREF); | |
| 6909 p = NULL; | |
| 6910 break; | |
| 6911 case NOPEN: | |
| 6912 p = "NOPEN"; | |
| 6913 break; | |
| 6914 case NCLOSE: | |
| 6915 p = "NCLOSE"; | |
| 6916 break; | |
| 6917 #ifdef FEAT_SYN_HL | |
| 6918 case ZOPEN + 1: | |
| 6919 case ZOPEN + 2: | |
| 6920 case ZOPEN + 3: | |
| 6921 case ZOPEN + 4: | |
| 6922 case ZOPEN + 5: | |
| 6923 case ZOPEN + 6: | |
| 6924 case ZOPEN + 7: | |
| 6925 case ZOPEN + 8: | |
| 6926 case ZOPEN + 9: | |
| 6927 sprintf(buf + STRLEN(buf), "ZOPEN%d", OP(op) - ZOPEN); | |
| 6928 p = NULL; | |
| 6929 break; | |
| 6930 case ZCLOSE + 1: | |
| 6931 case ZCLOSE + 2: | |
| 6932 case ZCLOSE + 3: | |
| 6933 case ZCLOSE + 4: | |
| 6934 case ZCLOSE + 5: | |
| 6935 case ZCLOSE + 6: | |
| 6936 case ZCLOSE + 7: | |
| 6937 case ZCLOSE + 8: | |
| 6938 case ZCLOSE + 9: | |
| 6939 sprintf(buf + STRLEN(buf), "ZCLOSE%d", OP(op) - ZCLOSE); | |
| 6940 p = NULL; | |
| 6941 break; | |
| 6942 case ZREF + 1: | |
| 6943 case ZREF + 2: | |
| 6944 case ZREF + 3: | |
| 6945 case ZREF + 4: | |
| 6946 case ZREF + 5: | |
| 6947 case ZREF + 6: | |
| 6948 case ZREF + 7: | |
| 6949 case ZREF + 8: | |
| 6950 case ZREF + 9: | |
| 6951 sprintf(buf + STRLEN(buf), "ZREF%d", OP(op) - ZREF); | |
| 6952 p = NULL; | |
| 6953 break; | |
| 6954 #endif | |
| 6955 case STAR: | |
| 6956 p = "STAR"; | |
| 6957 break; | |
| 6958 case PLUS: | |
| 6959 p = "PLUS"; | |
| 6960 break; | |
| 6961 case NOMATCH: | |
| 6962 p = "NOMATCH"; | |
| 6963 break; | |
| 6964 case MATCH: | |
| 6965 p = "MATCH"; | |
| 6966 break; | |
| 6967 case BEHIND: | |
| 6968 p = "BEHIND"; | |
| 6969 break; | |
| 6970 case NOBEHIND: | |
| 6971 p = "NOBEHIND"; | |
| 6972 break; | |
| 6973 case SUBPAT: | |
| 6974 p = "SUBPAT"; | |
| 6975 break; | |
| 6976 case BRACE_LIMITS: | |
| 6977 p = "BRACE_LIMITS"; | |
| 6978 break; | |
| 6979 case BRACE_SIMPLE: | |
| 6980 p = "BRACE_SIMPLE"; | |
| 6981 break; | |
| 6982 case BRACE_COMPLEX + 0: | |
| 6983 case BRACE_COMPLEX + 1: | |
| 6984 case BRACE_COMPLEX + 2: | |
| 6985 case BRACE_COMPLEX + 3: | |
| 6986 case BRACE_COMPLEX + 4: | |
| 6987 case BRACE_COMPLEX + 5: | |
| 6988 case BRACE_COMPLEX + 6: | |
| 6989 case BRACE_COMPLEX + 7: | |
| 6990 case BRACE_COMPLEX + 8: | |
| 6991 case BRACE_COMPLEX + 9: | |
| 6992 sprintf(buf + STRLEN(buf), "BRACE_COMPLEX%d", OP(op) - BRACE_COMPLEX); | |
| 6993 p = NULL; | |
| 6994 break; | |
| 6995 #ifdef FEAT_MBYTE | |
| 6996 case MULTIBYTECODE: | |
| 6997 p = "MULTIBYTECODE"; | |
| 6998 break; | |
| 6999 #endif | |
| 7000 case NEWL: | |
| 7001 p = "NEWL"; | |
| 7002 break; | |
| 7003 default: | |
| 7004 sprintf(buf + STRLEN(buf), "corrupt %d", OP(op)); | |
| 7005 p = NULL; | |
| 7006 break; | |
| 7007 } | |
| 7008 if (p != NULL) | |
| 4444 | 7009 STRCAT(buf, p); |
| 7010 return (char_u *)buf; | |
| 7 | 7011 } |
| 4444 | 7012 #endif /* DEBUG */ |
| 7 | 7013 |
| 6203 | 7014 /* |
| 7015 * Used in a place where no * or \+ can follow. | |
| 7016 */ | |
| 7017 static int | |
| 7018 re_mult_next(what) | |
| 7019 char *what; | |
| 7020 { | |
| 7021 if (re_multi_type(peekchr()) == MULTI_MULT) | |
| 7022 EMSG2_RET_FAIL(_("E888: (NFA regexp) cannot repeat %s"), what); | |
| 7023 return OK; | |
| 7024 } | |
| 7025 | |
| 7 | 7026 #ifdef FEAT_MBYTE |
| 7027 static void mb_decompose __ARGS((int c, int *c1, int *c2, int *c3)); | |
| 7028 | |
| 7029 typedef struct | |
| 7030 { | |
| 7031 int a, b, c; | |
| 7032 } decomp_T; | |
| 7033 | |
| 7034 | |
| 7035 /* 0xfb20 - 0xfb4f */ | |
| 297 | 7036 static decomp_T decomp_table[0xfb4f-0xfb20+1] = |
| 7 | 7037 { |
| 7038 {0x5e2,0,0}, /* 0xfb20 alt ayin */ | |
| 7039 {0x5d0,0,0}, /* 0xfb21 alt alef */ | |
| 7040 {0x5d3,0,0}, /* 0xfb22 alt dalet */ | |
| 7041 {0x5d4,0,0}, /* 0xfb23 alt he */ | |
| 7042 {0x5db,0,0}, /* 0xfb24 alt kaf */ | |
| 7043 {0x5dc,0,0}, /* 0xfb25 alt lamed */ | |
| 7044 {0x5dd,0,0}, /* 0xfb26 alt mem-sofit */ | |
| 7045 {0x5e8,0,0}, /* 0xfb27 alt resh */ | |
| 7046 {0x5ea,0,0}, /* 0xfb28 alt tav */ | |
| 7047 {'+', 0, 0}, /* 0xfb29 alt plus */ | |
| 7048 {0x5e9, 0x5c1, 0}, /* 0xfb2a shin+shin-dot */ | |
| 7049 {0x5e9, 0x5c2, 0}, /* 0xfb2b shin+sin-dot */ | |
| 7050 {0x5e9, 0x5c1, 0x5bc}, /* 0xfb2c shin+shin-dot+dagesh */ | |
| 7051 {0x5e9, 0x5c2, 0x5bc}, /* 0xfb2d shin+sin-dot+dagesh */ | |
| 7052 {0x5d0, 0x5b7, 0}, /* 0xfb2e alef+patah */ | |
| 7053 {0x5d0, 0x5b8, 0}, /* 0xfb2f alef+qamats */ | |
| 7054 {0x5d0, 0x5b4, 0}, /* 0xfb30 alef+hiriq */ | |
| 7055 {0x5d1, 0x5bc, 0}, /* 0xfb31 bet+dagesh */ | |
| 7056 {0x5d2, 0x5bc, 0}, /* 0xfb32 gimel+dagesh */ | |
| 7057 {0x5d3, 0x5bc, 0}, /* 0xfb33 dalet+dagesh */ | |
| 7058 {0x5d4, 0x5bc, 0}, /* 0xfb34 he+dagesh */ | |
| 7059 {0x5d5, 0x5bc, 0}, /* 0xfb35 vav+dagesh */ | |
| 7060 {0x5d6, 0x5bc, 0}, /* 0xfb36 zayin+dagesh */ | |
| 7061 {0xfb37, 0, 0}, /* 0xfb37 -- UNUSED */ | |
| 7062 {0x5d8, 0x5bc, 0}, /* 0xfb38 tet+dagesh */ | |
| 7063 {0x5d9, 0x5bc, 0}, /* 0xfb39 yud+dagesh */ | |
| 7064 {0x5da, 0x5bc, 0}, /* 0xfb3a kaf sofit+dagesh */ | |
| 7065 {0x5db, 0x5bc, 0}, /* 0xfb3b kaf+dagesh */ | |
| 7066 {0x5dc, 0x5bc, 0}, /* 0xfb3c lamed+dagesh */ | |
| 7067 {0xfb3d, 0, 0}, /* 0xfb3d -- UNUSED */ | |
| 7068 {0x5de, 0x5bc, 0}, /* 0xfb3e mem+dagesh */ | |
| 7069 {0xfb3f, 0, 0}, /* 0xfb3f -- UNUSED */ | |
| 7070 {0x5e0, 0x5bc, 0}, /* 0xfb40 nun+dagesh */ | |
| 7071 {0x5e1, 0x5bc, 0}, /* 0xfb41 samech+dagesh */ | |
| 7072 {0xfb42, 0, 0}, /* 0xfb42 -- UNUSED */ | |
| 7073 {0x5e3, 0x5bc, 0}, /* 0xfb43 pe sofit+dagesh */ | |
| 7074 {0x5e4, 0x5bc,0}, /* 0xfb44 pe+dagesh */ | |
| 7075 {0xfb45, 0, 0}, /* 0xfb45 -- UNUSED */ | |
| 7076 {0x5e6, 0x5bc, 0}, /* 0xfb46 tsadi+dagesh */ | |
| 7077 {0x5e7, 0x5bc, 0}, /* 0xfb47 qof+dagesh */ | |
| 7078 {0x5e8, 0x5bc, 0}, /* 0xfb48 resh+dagesh */ | |
| 7079 {0x5e9, 0x5bc, 0}, /* 0xfb49 shin+dagesh */ | |
| 7080 {0x5ea, 0x5bc, 0}, /* 0xfb4a tav+dagesh */ | |
| 7081 {0x5d5, 0x5b9, 0}, /* 0xfb4b vav+holam */ | |
| 7082 {0x5d1, 0x5bf, 0}, /* 0xfb4c bet+rafe */ | |
| 7083 {0x5db, 0x5bf, 0}, /* 0xfb4d kaf+rafe */ | |
| 7084 {0x5e4, 0x5bf, 0}, /* 0xfb4e pe+rafe */ | |
| 7085 {0x5d0, 0x5dc, 0} /* 0xfb4f alef-lamed */ | |
| 7086 }; | |
| 7087 | |
| 7088 static void | |
| 7089 mb_decompose(c, c1, c2, c3) | |
| 7090 int c, *c1, *c2, *c3; | |
| 7091 { | |
| 7092 decomp_T d; | |
| 7093 | |
|
4505
d037b9cbdaaa
updated for version 7.3.1000
Bram Moolenaar <bram@vim.org>
parents:
4466
diff
changeset
|
7094 if (c >= 0xfb20 && c <= 0xfb4f) |
| 7 | 7095 { |
| 7096 d = decomp_table[c - 0xfb20]; | |
| 7097 *c1 = d.a; | |
| 7098 *c2 = d.b; | |
| 7099 *c3 = d.c; | |
| 7100 } | |
| 7101 else | |
| 7102 { | |
| 7103 *c1 = c; | |
| 7104 *c2 = *c3 = 0; | |
| 7105 } | |
| 7106 } | |
| 7107 #endif | |
| 7108 | |
| 7109 /* | |
| 7110 * Compare two strings, ignore case if ireg_ic set. | |
| 7111 * Return 0 if strings match, non-zero otherwise. | |
| 7112 * Correct the length "*n" when composing characters are ignored. | |
| 7113 */ | |
| 7114 static int | |
| 7115 cstrncmp(s1, s2, n) | |
| 7116 char_u *s1, *s2; | |
| 7117 int *n; | |
| 7118 { | |
| 7119 int result; | |
| 7120 | |
| 7121 if (!ireg_ic) | |
| 7122 result = STRNCMP(s1, s2, *n); | |
| 7123 else | |
| 7124 result = MB_STRNICMP(s1, s2, *n); | |
| 7125 | |
| 7126 #ifdef FEAT_MBYTE | |
| 7127 /* if it failed and it's utf8 and we want to combineignore: */ | |
| 7128 if (result != 0 && enc_utf8 && ireg_icombine) | |
| 7129 { | |
| 7130 char_u *str1, *str2; | |
| 7131 int c1, c2, c11, c12; | |
| 7132 int junk; | |
| 7133 | |
| 7134 /* we have to handle the strcmp ourselves, since it is necessary to | |
| 7135 * deal with the composing characters by ignoring them: */ | |
| 7136 str1 = s1; | |
| 7137 str2 = s2; | |
| 7138 c1 = c2 = 0; | |
| 507 | 7139 while ((int)(str1 - s1) < *n) |
| 7 | 7140 { |
| 7141 c1 = mb_ptr2char_adv(&str1); | |
| 7142 c2 = mb_ptr2char_adv(&str2); | |
| 7143 | |
| 7144 /* decompose the character if necessary, into 'base' characters | |
| 7145 * because I don't care about Arabic, I will hard-code the Hebrew | |
| 7146 * which I *do* care about! So sue me... */ | |
| 7147 if (c1 != c2 && (!ireg_ic || utf_fold(c1) != utf_fold(c2))) | |
| 7148 { | |
| 7149 /* decomposition necessary? */ | |
| 7150 mb_decompose(c1, &c11, &junk, &junk); | |
| 7151 mb_decompose(c2, &c12, &junk, &junk); | |
| 7152 c1 = c11; | |
| 7153 c2 = c12; | |
| 7154 if (c11 != c12 && (!ireg_ic || utf_fold(c11) != utf_fold(c12))) | |
| 7155 break; | |
| 7156 } | |
| 7157 } | |
| 7158 result = c2 - c1; | |
| 7159 if (result == 0) | |
| 7160 *n = (int)(str2 - s2); | |
| 7161 } | |
| 7162 #endif | |
| 7163 | |
| 7164 return result; | |
| 7165 } | |
| 7166 | |
| 7167 /* | |
| 7168 * cstrchr: This function is used a lot for simple searches, keep it fast! | |
| 7169 */ | |
| 7170 static char_u * | |
| 7171 cstrchr(s, c) | |
| 7172 char_u *s; | |
| 7173 int c; | |
| 7174 { | |
| 7175 char_u *p; | |
| 7176 int cc; | |
| 7177 | |
| 7178 if (!ireg_ic | |
| 7179 #ifdef FEAT_MBYTE | |
| 7180 || (!enc_utf8 && mb_char2len(c) > 1) | |
| 7181 #endif | |
| 7182 ) | |
| 7183 return vim_strchr(s, c); | |
| 7184 | |
| 7185 /* tolower() and toupper() can be slow, comparing twice should be a lot | |
| 7186 * faster (esp. when using MS Visual C++!). | |
| 7187 * For UTF-8 need to use folded case. */ | |
| 7188 #ifdef FEAT_MBYTE | |
| 7189 if (enc_utf8 && c > 0x80) | |
| 7190 cc = utf_fold(c); | |
| 7191 else | |
| 7192 #endif | |
| 1347 | 7193 if (MB_ISUPPER(c)) |
| 7194 cc = MB_TOLOWER(c); | |
| 7195 else if (MB_ISLOWER(c)) | |
| 7196 cc = MB_TOUPPER(c); | |
| 7 | 7197 else |
| 7198 return vim_strchr(s, c); | |
| 7199 | |
| 7200 #ifdef FEAT_MBYTE | |
| 7201 if (has_mbyte) | |
| 7202 { | |
| 474 | 7203 for (p = s; *p != NUL; p += (*mb_ptr2len)(p)) |
| 7 | 7204 { |
| 7205 if (enc_utf8 && c > 0x80) | |
| 7206 { | |
| 7207 if (utf_fold(utf_ptr2char(p)) == cc) | |
| 7208 return p; | |
| 7209 } | |
| 7210 else if (*p == c || *p == cc) | |
| 7211 return p; | |
| 7212 } | |
| 7213 } | |
| 7214 else | |
| 7215 #endif | |
| 7216 /* Faster version for when there are no multi-byte characters. */ | |
| 7217 for (p = s; *p != NUL; ++p) | |
| 7218 if (*p == c || *p == cc) | |
| 7219 return p; | |
| 7220 | |
| 7221 return NULL; | |
| 7222 } | |
| 7223 | |
| 7224 /*************************************************************** | |
| 7225 * regsub stuff * | |
| 7226 ***************************************************************/ | |
| 7227 | |
| 7228 /* This stuff below really confuses cc on an SGI -- webb */ | |
| 7229 #ifdef __sgi | |
| 7230 # undef __ARGS | |
| 7231 # define __ARGS(x) () | |
| 7232 #endif | |
| 7233 | |
| 7234 /* | |
| 7235 * We should define ftpr as a pointer to a function returning a pointer to | |
| 7236 * a function returning a pointer to a function ... | |
| 7237 * This is impossible, so we declare a pointer to a function returning a | |
| 7238 * pointer to a function returning void. This should work for all compilers. | |
| 7239 */ | |
| 772 | 7240 typedef void (*(*fptr_T) __ARGS((int *, int)))(); |
| 7241 | |
| 7242 static fptr_T do_upper __ARGS((int *, int)); | |
| 7243 static fptr_T do_Upper __ARGS((int *, int)); | |
| 7244 static fptr_T do_lower __ARGS((int *, int)); | |
| 7245 static fptr_T do_Lower __ARGS((int *, int)); | |
| 7 | 7246 |
| 7247 static int vim_regsub_both __ARGS((char_u *source, char_u *dest, int copy, int magic, int backslash)); | |
| 7248 | |
| 772 | 7249 static fptr_T |
| 7 | 7250 do_upper(d, c) |
| 772 | 7251 int *d; |
| 7252 int c; | |
| 7 | 7253 { |
| 772 | 7254 *d = MB_TOUPPER(c); |
| 7255 | |
| 7256 return (fptr_T)NULL; | |
| 7 | 7257 } |
| 7258 | |
| 772 | 7259 static fptr_T |
| 7260 do_Upper(d, c) | |
| 7261 int *d; | |
| 7 | 7262 int c; |
| 7263 { | |
| 772 | 7264 *d = MB_TOUPPER(c); |
| 7265 | |
| 7266 return (fptr_T)do_Upper; | |
| 7267 } | |
| 7268 | |
| 7269 static fptr_T | |
| 7270 do_lower(d, c) | |
| 7271 int *d; | |
| 7272 int c; | |
| 7273 { | |
| 7274 *d = MB_TOLOWER(c); | |
| 7275 | |
| 7276 return (fptr_T)NULL; | |
| 7277 } | |
| 7278 | |
| 7279 static fptr_T | |
| 7280 do_Lower(d, c) | |
| 7281 int *d; | |
| 7282 int c; | |
| 7283 { | |
| 7284 *d = MB_TOLOWER(c); | |
| 7285 | |
| 7286 return (fptr_T)do_Lower; | |
| 7 | 7287 } |
| 7288 | |
| 7289 /* | |
| 7290 * regtilde(): Replace tildes in the pattern by the old pattern. | |
| 7291 * | |
| 7292 * Short explanation of the tilde: It stands for the previous replacement | |
| 7293 * pattern. If that previous pattern also contains a ~ we should go back a | |
| 7294 * step further... But we insert the previous pattern into the current one | |
| 7295 * and remember that. | |
| 772 | 7296 * This still does not handle the case where "magic" changes. So require the |
| 7297 * user to keep his hands off of "magic". | |
| 7 | 7298 * |
| 7299 * The tildes are parsed once before the first call to vim_regsub(). | |
| 7300 */ | |
| 7301 char_u * | |
| 7302 regtilde(source, magic) | |
| 7303 char_u *source; | |
| 7304 int magic; | |
| 7305 { | |
| 7306 char_u *newsub = source; | |
| 7307 char_u *tmpsub; | |
| 7308 char_u *p; | |
| 7309 int len; | |
| 7310 int prevlen; | |
| 7311 | |
| 7312 for (p = newsub; *p; ++p) | |
| 7313 { | |
| 7314 if ((*p == '~' && magic) || (*p == '\\' && *(p + 1) == '~' && !magic)) | |
| 7315 { | |
| 7316 if (reg_prev_sub != NULL) | |
| 7317 { | |
| 7318 /* length = len(newsub) - 1 + len(prev_sub) + 1 */ | |
| 7319 prevlen = (int)STRLEN(reg_prev_sub); | |
| 7320 tmpsub = alloc((unsigned)(STRLEN(newsub) + prevlen)); | |
| 7321 if (tmpsub != NULL) | |
| 7322 { | |
| 7323 /* copy prefix */ | |
| 7324 len = (int)(p - newsub); /* not including ~ */ | |
| 7325 mch_memmove(tmpsub, newsub, (size_t)len); | |
| 1209 | 7326 /* interpret tilde */ |
| 7 | 7327 mch_memmove(tmpsub + len, reg_prev_sub, (size_t)prevlen); |
| 7328 /* copy postfix */ | |
| 7329 if (!magic) | |
| 7330 ++p; /* back off \ */ | |
| 7331 STRCPY(tmpsub + len + prevlen, p + 1); | |
| 7332 | |
| 7333 if (newsub != source) /* already allocated newsub */ | |
| 7334 vim_free(newsub); | |
| 7335 newsub = tmpsub; | |
| 7336 p = newsub + len + prevlen; | |
| 7337 } | |
| 7338 } | |
| 7339 else if (magic) | |
| 1621 | 7340 STRMOVE(p, p + 1); /* remove '~' */ |
| 7 | 7341 else |
| 1621 | 7342 STRMOVE(p, p + 2); /* remove '\~' */ |
| 7 | 7343 --p; |
| 7344 } | |
| 7345 else | |
| 7346 { | |
| 7347 if (*p == '\\' && p[1]) /* skip escaped characters */ | |
| 7348 ++p; | |
| 7349 #ifdef FEAT_MBYTE | |
| 7350 if (has_mbyte) | |
| 474 | 7351 p += (*mb_ptr2len)(p) - 1; |
| 7 | 7352 #endif |
| 7353 } | |
| 7354 } | |
| 7355 | |
| 7356 vim_free(reg_prev_sub); | |
| 7357 if (newsub != source) /* newsub was allocated, just keep it */ | |
| 7358 reg_prev_sub = newsub; | |
| 7359 else /* no ~ found, need to save newsub */ | |
| 7360 reg_prev_sub = vim_strsave(newsub); | |
| 7361 return newsub; | |
| 7362 } | |
| 7363 | |
| 7364 #ifdef FEAT_EVAL | |
| 7365 static int can_f_submatch = FALSE; /* TRUE when submatch() can be used */ | |
| 7366 | |
| 7367 /* These pointers are used instead of reg_match and reg_mmatch for | |
| 7368 * reg_submatch(). Needed for when the substitution string is an expression | |
| 7369 * that contains a call to substitute() and submatch(). */ | |
| 7370 static regmatch_T *submatch_match; | |
| 7371 static regmmatch_T *submatch_mmatch; | |
| 2011 | 7372 static linenr_T submatch_firstlnum; |
| 7373 static linenr_T submatch_maxline; | |
| 2904 | 7374 static int submatch_line_lbr; |
| 7 | 7375 #endif |
| 7376 | |
| 7377 #if defined(FEAT_MODIFY_FNAME) || defined(FEAT_EVAL) || defined(PROTO) | |
| 7378 /* | |
| 7379 * vim_regsub() - perform substitutions after a vim_regexec() or | |
| 7380 * vim_regexec_multi() match. | |
| 7381 * | |
| 7382 * If "copy" is TRUE really copy into "dest". | |
| 7383 * If "copy" is FALSE nothing is copied, this is just to find out the length | |
| 7384 * of the result. | |
| 7385 * | |
| 7386 * If "backslash" is TRUE, a backslash will be removed later, need to double | |
| 7387 * them to keep them, and insert a backslash before a CR to avoid it being | |
| 7388 * replaced with a line break later. | |
| 7389 * | |
| 7390 * Note: The matched text must not change between the call of | |
| 7391 * vim_regexec()/vim_regexec_multi() and vim_regsub()! It would make the back | |
| 7392 * references invalid! | |
| 7393 * | |
| 7394 * Returns the size of the replacement, including terminating NUL. | |
| 7395 */ | |
| 7396 int | |
| 7397 vim_regsub(rmp, source, dest, copy, magic, backslash) | |
| 7398 regmatch_T *rmp; | |
| 7399 char_u *source; | |
| 7400 char_u *dest; | |
| 7401 int copy; | |
| 7402 int magic; | |
| 7403 int backslash; | |
| 7404 { | |
| 7405 reg_match = rmp; | |
| 7406 reg_mmatch = NULL; | |
| 7407 reg_maxline = 0; | |
| 4061 | 7408 reg_buf = curbuf; |
| 5836 | 7409 reg_line_lbr = TRUE; |
| 7 | 7410 return vim_regsub_both(source, dest, copy, magic, backslash); |
| 7411 } | |
| 7412 #endif | |
| 7413 | |
| 7414 int | |
| 7415 vim_regsub_multi(rmp, lnum, source, dest, copy, magic, backslash) | |
| 7416 regmmatch_T *rmp; | |
| 7417 linenr_T lnum; | |
| 7418 char_u *source; | |
| 7419 char_u *dest; | |
| 7420 int copy; | |
| 7421 int magic; | |
| 7422 int backslash; | |
| 7423 { | |
| 7424 reg_match = NULL; | |
| 7425 reg_mmatch = rmp; | |
| 7426 reg_buf = curbuf; /* always works on the current buffer! */ | |
| 7427 reg_firstlnum = lnum; | |
| 7428 reg_maxline = curbuf->b_ml.ml_line_count - lnum; | |
| 5836 | 7429 reg_line_lbr = FALSE; |
| 7 | 7430 return vim_regsub_both(source, dest, copy, magic, backslash); |
| 7431 } | |
| 7432 | |
| 7433 static int | |
| 7434 vim_regsub_both(source, dest, copy, magic, backslash) | |
| 7435 char_u *source; | |
| 7436 char_u *dest; | |
| 7437 int copy; | |
| 7438 int magic; | |
| 7439 int backslash; | |
| 7440 { | |
| 7441 char_u *src; | |
| 7442 char_u *dst; | |
| 7443 char_u *s; | |
| 7444 int c; | |
| 772 | 7445 int cc; |
| 7 | 7446 int no = -1; |
| 4244 | 7447 fptr_T func_all = (fptr_T)NULL; |
| 7448 fptr_T func_one = (fptr_T)NULL; | |
| 7 | 7449 linenr_T clnum = 0; /* init for GCC */ |
| 7450 int len = 0; /* init for GCC */ | |
| 7451 #ifdef FEAT_EVAL | |
| 7452 static char_u *eval_result = NULL; | |
| 7453 #endif | |
| 7454 | |
| 7455 /* Be paranoid... */ | |
| 7456 if (source == NULL || dest == NULL) | |
| 7457 { | |
| 7458 EMSG(_(e_null)); | |
| 7459 return 0; | |
| 7460 } | |
| 7461 if (prog_magic_wrong()) | |
| 7462 return 0; | |
| 7463 src = source; | |
| 7464 dst = dest; | |
| 7465 | |
| 7466 /* | |
| 7467 * When the substitute part starts with "\=" evaluate it as an expression. | |
| 7468 */ | |
| 7469 if (source[0] == '\\' && source[1] == '=' | |
| 7470 #ifdef FEAT_EVAL | |
| 7471 && !can_f_submatch /* can't do this recursively */ | |
| 7472 #endif | |
| 7473 ) | |
| 7474 { | |
| 7475 #ifdef FEAT_EVAL | |
| 7476 /* To make sure that the length doesn't change between checking the | |
| 7477 * length and copying the string, and to speed up things, the | |
| 7478 * resulting string is saved from the call with "copy" == FALSE to the | |
| 7479 * call with "copy" == TRUE. */ | |
| 7480 if (copy) | |
| 7481 { | |
| 7482 if (eval_result != NULL) | |
| 7483 { | |
| 7484 STRCPY(dest, eval_result); | |
| 7485 dst += STRLEN(eval_result); | |
| 7486 vim_free(eval_result); | |
| 7487 eval_result = NULL; | |
| 7488 } | |
| 7489 } | |
| 7490 else | |
| 7491 { | |
| 7492 win_T *save_reg_win; | |
| 7493 int save_ireg_ic; | |
| 7494 | |
| 7495 vim_free(eval_result); | |
| 7496 | |
| 7497 /* The expression may contain substitute(), which calls us | |
| 7498 * recursively. Make sure submatch() gets the text from the first | |
| 7499 * level. Don't need to save "reg_buf", because | |
| 7500 * vim_regexec_multi() can't be called recursively. */ | |
| 7501 submatch_match = reg_match; | |
| 7502 submatch_mmatch = reg_mmatch; | |
| 2011 | 7503 submatch_firstlnum = reg_firstlnum; |
| 7504 submatch_maxline = reg_maxline; | |
| 2904 | 7505 submatch_line_lbr = reg_line_lbr; |
| 7 | 7506 save_reg_win = reg_win; |
| 7507 save_ireg_ic = ireg_ic; | |
| 7508 can_f_submatch = TRUE; | |
| 7509 | |
| 714 | 7510 eval_result = eval_to_string(source + 2, NULL, TRUE); |
| 7 | 7511 if (eval_result != NULL) |
| 7512 { | |
|
2125
b8744d1982d1
updated for version 7.2.407
Bram Moolenaar <bram@zimbu.org>
parents:
2012
diff
changeset
|
7513 int had_backslash = FALSE; |
|
b8744d1982d1
updated for version 7.2.407
Bram Moolenaar <bram@zimbu.org>
parents:
2012
diff
changeset
|
7514 |
| 39 | 7515 for (s = eval_result; *s != NUL; mb_ptr_adv(s)) |
| 7 | 7516 { |
| 2904 | 7517 /* Change NL to CR, so that it becomes a line break, |
| 7518 * unless called from vim_regexec_nl(). | |
| 7 | 7519 * Skip over a backslashed character. */ |
| 2904 | 7520 if (*s == NL && !submatch_line_lbr) |
| 7 | 7521 *s = CAR; |
| 7522 else if (*s == '\\' && s[1] != NUL) | |
|
2125
b8744d1982d1
updated for version 7.2.407
Bram Moolenaar <bram@zimbu.org>
parents:
2012
diff
changeset
|
7523 { |
| 7 | 7524 ++s; |
| 2173 | 7525 /* Change NL to CR here too, so that this works: |
| 7526 * :s/abc\\\ndef/\="aaa\\\nbbb"/ on text: | |
| 7527 * abc\ | |
| 7528 * def | |
| 2904 | 7529 * Not when called from vim_regexec_nl(). |
| 2173 | 7530 */ |
| 2904 | 7531 if (*s == NL && !submatch_line_lbr) |
| 2173 | 7532 *s = CAR; |
|
2125
b8744d1982d1
updated for version 7.2.407
Bram Moolenaar <bram@zimbu.org>
parents:
2012
diff
changeset
|
7533 had_backslash = TRUE; |
|
b8744d1982d1
updated for version 7.2.407
Bram Moolenaar <bram@zimbu.org>
parents:
2012
diff
changeset
|
7534 } |
|
b8744d1982d1
updated for version 7.2.407
Bram Moolenaar <bram@zimbu.org>
parents:
2012
diff
changeset
|
7535 } |
|
b8744d1982d1
updated for version 7.2.407
Bram Moolenaar <bram@zimbu.org>
parents:
2012
diff
changeset
|
7536 if (had_backslash && backslash) |
|
b8744d1982d1
updated for version 7.2.407
Bram Moolenaar <bram@zimbu.org>
parents:
2012
diff
changeset
|
7537 { |
|
b8744d1982d1
updated for version 7.2.407
Bram Moolenaar <bram@zimbu.org>
parents:
2012
diff
changeset
|
7538 /* Backslashes will be consumed, need to double them. */ |
|
b8744d1982d1
updated for version 7.2.407
Bram Moolenaar <bram@zimbu.org>
parents:
2012
diff
changeset
|
7539 s = vim_strsave_escaped(eval_result, (char_u *)"\\"); |
|
b8744d1982d1
updated for version 7.2.407
Bram Moolenaar <bram@zimbu.org>
parents:
2012
diff
changeset
|
7540 if (s != NULL) |
|
b8744d1982d1
updated for version 7.2.407
Bram Moolenaar <bram@zimbu.org>
parents:
2012
diff
changeset
|
7541 { |
|
b8744d1982d1
updated for version 7.2.407
Bram Moolenaar <bram@zimbu.org>
parents:
2012
diff
changeset
|
7542 vim_free(eval_result); |
|
b8744d1982d1
updated for version 7.2.407
Bram Moolenaar <bram@zimbu.org>
parents:
2012
diff
changeset
|
7543 eval_result = s; |
|
b8744d1982d1
updated for version 7.2.407
Bram Moolenaar <bram@zimbu.org>
parents:
2012
diff
changeset
|
7544 } |
| 7 | 7545 } |
| 7546 | |
| 7547 dst += STRLEN(eval_result); | |
| 7548 } | |
| 7549 | |
| 7550 reg_match = submatch_match; | |
| 7551 reg_mmatch = submatch_mmatch; | |
| 2011 | 7552 reg_firstlnum = submatch_firstlnum; |
| 7553 reg_maxline = submatch_maxline; | |
| 2904 | 7554 reg_line_lbr = submatch_line_lbr; |
| 7 | 7555 reg_win = save_reg_win; |
| 7556 ireg_ic = save_ireg_ic; | |
| 7557 can_f_submatch = FALSE; | |
| 7558 } | |
| 7559 #endif | |
| 7560 } | |
| 7561 else | |
| 7562 while ((c = *src++) != NUL) | |
| 7563 { | |
| 7564 if (c == '&' && magic) | |
| 7565 no = 0; | |
| 7566 else if (c == '\\' && *src != NUL) | |
| 7567 { | |
| 7568 if (*src == '&' && !magic) | |
| 7569 { | |
| 7570 ++src; | |
| 7571 no = 0; | |
| 7572 } | |
| 7573 else if ('0' <= *src && *src <= '9') | |
| 7574 { | |
| 7575 no = *src++ - '0'; | |
| 7576 } | |
| 7577 else if (vim_strchr((char_u *)"uUlLeE", *src)) | |
| 7578 { | |
| 7579 switch (*src++) | |
| 7580 { | |
| 4244 | 7581 case 'u': func_one = (fptr_T)do_upper; |
| 7 | 7582 continue; |
| 4244 | 7583 case 'U': func_all = (fptr_T)do_Upper; |
| 7 | 7584 continue; |
| 4244 | 7585 case 'l': func_one = (fptr_T)do_lower; |
| 7 | 7586 continue; |
| 4244 | 7587 case 'L': func_all = (fptr_T)do_Lower; |
| 7 | 7588 continue; |
| 7589 case 'e': | |
| 4244 | 7590 case 'E': func_one = func_all = (fptr_T)NULL; |
| 7 | 7591 continue; |
| 7592 } | |
| 7593 } | |
| 7594 } | |
| 7595 if (no < 0) /* Ordinary character. */ | |
| 7596 { | |
| 798 | 7597 if (c == K_SPECIAL && src[0] != NUL && src[1] != NUL) |
| 7598 { | |
| 1209 | 7599 /* Copy a special key as-is. */ |
| 798 | 7600 if (copy) |
| 7601 { | |
| 7602 *dst++ = c; | |
| 7603 *dst++ = *src++; | |
| 7604 *dst++ = *src++; | |
| 7605 } | |
| 7606 else | |
| 7607 { | |
| 7608 dst += 3; | |
| 7609 src += 2; | |
| 7610 } | |
| 7611 continue; | |
| 7612 } | |
| 7613 | |
| 7 | 7614 if (c == '\\' && *src != NUL) |
| 7615 { | |
| 7616 /* Check for abbreviations -- webb */ | |
| 7617 switch (*src) | |
| 7618 { | |
| 7619 case 'r': c = CAR; ++src; break; | |
| 7620 case 'n': c = NL; ++src; break; | |
| 7621 case 't': c = TAB; ++src; break; | |
| 7622 /* Oh no! \e already has meaning in subst pat :-( */ | |
| 7623 /* case 'e': c = ESC; ++src; break; */ | |
| 7624 case 'b': c = Ctrl_H; ++src; break; | |
| 7625 | |
| 7626 /* If "backslash" is TRUE the backslash will be removed | |
| 7627 * later. Used to insert a literal CR. */ | |
| 7628 default: if (backslash) | |
| 7629 { | |
| 7630 if (copy) | |
| 7631 *dst = '\\'; | |
| 7632 ++dst; | |
| 7633 } | |
| 7634 c = *src++; | |
| 7635 } | |
| 7636 } | |
| 798 | 7637 #ifdef FEAT_MBYTE |
| 7638 else if (has_mbyte) | |
| 7639 c = mb_ptr2char(src - 1); | |
| 7640 #endif | |
| 7 | 7641 |
| 7642 /* Write to buffer, if copy is set. */ | |
| 4244 | 7643 if (func_one != (fptr_T)NULL) |
| 7644 /* Turbo C complains without the typecast */ | |
| 7645 func_one = (fptr_T)(func_one(&cc, c)); | |
| 7646 else if (func_all != (fptr_T)NULL) | |
| 7647 /* Turbo C complains without the typecast */ | |
| 7648 func_all = (fptr_T)(func_all(&cc, c)); | |
| 7649 else /* just copy */ | |
| 772 | 7650 cc = c; |
| 7651 | |
| 7652 #ifdef FEAT_MBYTE | |
| 7653 if (has_mbyte) | |
| 7 | 7654 { |
|
2307
81527f127fb1
Fix: Composing characters in :s substitute text were dropped.
Bram Moolenaar <bram@vim.org>
parents:
2247
diff
changeset
|
7655 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
|
7656 |
| 7 | 7657 if (copy) |
| 772 | 7658 mb_char2bytes(cc, dst); |
| 7659 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
|
7660 if (enc_utf8) |
|
81527f127fb1
Fix: Composing characters in :s substitute text were dropped.
Bram Moolenaar <bram@vim.org>
parents:
2247
diff
changeset
|
7661 { |
|
81527f127fb1
Fix: Composing characters in :s substitute text were dropped.
Bram Moolenaar <bram@vim.org>
parents:
2247
diff
changeset
|
7662 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
|
7663 |
|
81527f127fb1
Fix: Composing characters in :s substitute text were dropped.
Bram Moolenaar <bram@vim.org>
parents:
2247
diff
changeset
|
7664 /* 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
|
7665 * 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
|
7666 if (clen < totlen) |
|
81527f127fb1
Fix: Composing characters in :s substitute text were dropped.
Bram Moolenaar <bram@vim.org>
parents:
2247
diff
changeset
|
7667 { |
|
81527f127fb1
Fix: Composing characters in :s substitute text were dropped.
Bram Moolenaar <bram@vim.org>
parents:
2247
diff
changeset
|
7668 if (copy) |
|
81527f127fb1
Fix: Composing characters in :s substitute text were dropped.
Bram Moolenaar <bram@vim.org>
parents:
2247
diff
changeset
|
7669 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
|
7670 (size_t)(totlen - clen)); |
|
81527f127fb1
Fix: Composing characters in :s substitute text were dropped.
Bram Moolenaar <bram@vim.org>
parents:
2247
diff
changeset
|
7671 dst += totlen - clen; |
|
81527f127fb1
Fix: Composing characters in :s substitute text were dropped.
Bram Moolenaar <bram@vim.org>
parents:
2247
diff
changeset
|
7672 } |
|
81527f127fb1
Fix: Composing characters in :s substitute text were dropped.
Bram Moolenaar <bram@vim.org>
parents:
2247
diff
changeset
|
7673 } |
|
81527f127fb1
Fix: Composing characters in :s substitute text were dropped.
Bram Moolenaar <bram@vim.org>
parents:
2247
diff
changeset
|
7674 src += totlen - 1; |
| 7 | 7675 } |
| 7676 else | |
| 7677 #endif | |
| 7678 if (copy) | |
| 772 | 7679 *dst = cc; |
| 7 | 7680 dst++; |
| 7681 } | |
| 7682 else | |
| 7683 { | |
| 7684 if (REG_MULTI) | |
| 7685 { | |
| 7686 clnum = reg_mmatch->startpos[no].lnum; | |
| 7687 if (clnum < 0 || reg_mmatch->endpos[no].lnum < 0) | |
| 7688 s = NULL; | |
| 7689 else | |
| 7690 { | |
| 7691 s = reg_getline(clnum) + reg_mmatch->startpos[no].col; | |
| 7692 if (reg_mmatch->endpos[no].lnum == clnum) | |
| 7693 len = reg_mmatch->endpos[no].col | |
| 7694 - reg_mmatch->startpos[no].col; | |
| 7695 else | |
| 7696 len = (int)STRLEN(s); | |
| 7697 } | |
| 7698 } | |
| 7699 else | |
| 7700 { | |
| 7701 s = reg_match->startp[no]; | |
| 7702 if (reg_match->endp[no] == NULL) | |
| 7703 s = NULL; | |
| 7704 else | |
| 7705 len = (int)(reg_match->endp[no] - s); | |
| 7706 } | |
| 7707 if (s != NULL) | |
| 7708 { | |
| 7709 for (;;) | |
| 7710 { | |
| 7711 if (len == 0) | |
| 7712 { | |
| 7713 if (REG_MULTI) | |
| 7714 { | |
| 7715 if (reg_mmatch->endpos[no].lnum == clnum) | |
| 7716 break; | |
| 7717 if (copy) | |
| 7718 *dst = CAR; | |
| 7719 ++dst; | |
| 7720 s = reg_getline(++clnum); | |
| 7721 if (reg_mmatch->endpos[no].lnum == clnum) | |
| 7722 len = reg_mmatch->endpos[no].col; | |
| 7723 else | |
| 7724 len = (int)STRLEN(s); | |
| 7725 } | |
| 7726 else | |
| 7727 break; | |
| 7728 } | |
| 7729 else if (*s == NUL) /* we hit NUL. */ | |
| 7730 { | |
| 7731 if (copy) | |
| 7732 EMSG(_(e_re_damg)); | |
| 7733 goto exit; | |
| 7734 } | |
| 7735 else | |
| 7736 { | |
| 7737 if (backslash && (*s == CAR || *s == '\\')) | |
| 7738 { | |
| 7739 /* | |
| 7740 * Insert a backslash in front of a CR, otherwise | |
| 7741 * it will be replaced by a line break. | |
| 7742 * Number of backslashes will be halved later, | |
| 7743 * double them here. | |
| 7744 */ | |
| 7745 if (copy) | |
| 7746 { | |
| 7747 dst[0] = '\\'; | |
| 7748 dst[1] = *s; | |
| 7749 } | |
| 7750 dst += 2; | |
| 7751 } | |
| 7752 else | |
| 7753 { | |
| 772 | 7754 #ifdef FEAT_MBYTE |
| 7755 if (has_mbyte) | |
| 7756 c = mb_ptr2char(s); | |
| 7757 else | |
| 7758 #endif | |
| 7759 c = *s; | |
| 7760 | |
| 4244 | 7761 if (func_one != (fptr_T)NULL) |
| 7762 /* Turbo C complains without the typecast */ | |
| 7763 func_one = (fptr_T)(func_one(&cc, c)); | |
| 7764 else if (func_all != (fptr_T)NULL) | |
| 7765 /* Turbo C complains without the typecast */ | |
| 7766 func_all = (fptr_T)(func_all(&cc, c)); | |
| 7767 else /* just copy */ | |
| 772 | 7768 cc = c; |
| 7769 | |
| 7770 #ifdef FEAT_MBYTE | |
| 7771 if (has_mbyte) | |
| 7 | 7772 { |
| 1332 | 7773 int l; |
| 7774 | |
| 7775 /* Copy composing characters separately, one | |
| 7776 * at a time. */ | |
| 7777 if (enc_utf8) | |
| 7778 l = utf_ptr2len(s) - 1; | |
| 7779 else | |
| 7780 l = mb_ptr2len(s) - 1; | |
| 772 | 7781 |
| 7782 s += l; | |
| 7783 len -= l; | |
| 7784 if (copy) | |
| 7785 mb_char2bytes(cc, dst); | |
| 7786 dst += mb_char2len(cc) - 1; | |
| 7 | 7787 } |
| 772 | 7788 else |
| 7789 #endif | |
| 7790 if (copy) | |
| 7791 *dst = cc; | |
| 7792 dst++; | |
| 7 | 7793 } |
| 772 | 7794 |
| 7 | 7795 ++s; |
| 7796 --len; | |
| 7797 } | |
| 7798 } | |
| 7799 } | |
| 7800 no = -1; | |
| 7801 } | |
| 7802 } | |
| 7803 if (copy) | |
| 7804 *dst = NUL; | |
| 7805 | |
| 7806 exit: | |
| 7807 return (int)((dst - dest) + 1); | |
| 7808 } | |
| 7809 | |
| 7810 #ifdef FEAT_EVAL | |
| 2012 | 7811 static char_u *reg_getline_submatch __ARGS((linenr_T lnum)); |
| 7812 | |
| 7 | 7813 /* |
| 2011 | 7814 * Call reg_getline() with the line numbers from the submatch. If a |
| 7815 * substitute() was used the reg_maxline and other values have been | |
| 7816 * overwritten. | |
| 7817 */ | |
| 7818 static char_u * | |
| 7819 reg_getline_submatch(lnum) | |
| 7820 linenr_T lnum; | |
| 7821 { | |
| 7822 char_u *s; | |
| 7823 linenr_T save_first = reg_firstlnum; | |
| 7824 linenr_T save_max = reg_maxline; | |
| 7825 | |
| 7826 reg_firstlnum = submatch_firstlnum; | |
| 7827 reg_maxline = submatch_maxline; | |
| 7828 | |
| 7829 s = reg_getline(lnum); | |
| 7830 | |
| 7831 reg_firstlnum = save_first; | |
| 7832 reg_maxline = save_max; | |
| 7833 return s; | |
| 7834 } | |
| 7835 | |
| 7836 /* | |
| 1209 | 7837 * Used for the submatch() function: get the string from the n'th submatch in |
| 7 | 7838 * allocated memory. |
| 7839 * Returns NULL when not in a ":s" command and for a non-existing submatch. | |
| 7840 */ | |
| 7841 char_u * | |
| 7842 reg_submatch(no) | |
| 7843 int no; | |
| 7844 { | |
| 7845 char_u *retval = NULL; | |
| 7846 char_u *s; | |
| 7847 int len; | |
| 7848 int round; | |
| 7849 linenr_T lnum; | |
| 7850 | |
| 840 | 7851 if (!can_f_submatch || no < 0) |
| 7 | 7852 return NULL; |
| 7853 | |
| 7854 if (submatch_match == NULL) | |
| 7855 { | |
| 7856 /* | |
| 7857 * First round: compute the length and allocate memory. | |
| 7858 * Second round: copy the text. | |
| 7859 */ | |
| 7860 for (round = 1; round <= 2; ++round) | |
| 7861 { | |
| 7862 lnum = submatch_mmatch->startpos[no].lnum; | |
| 7863 if (lnum < 0 || submatch_mmatch->endpos[no].lnum < 0) | |
| 7864 return NULL; | |
| 7865 | |
| 2011 | 7866 s = reg_getline_submatch(lnum) + submatch_mmatch->startpos[no].col; |
| 7 | 7867 if (s == NULL) /* anti-crash check, cannot happen? */ |
| 7868 break; | |
| 7869 if (submatch_mmatch->endpos[no].lnum == lnum) | |
| 7870 { | |
| 7871 /* Within one line: take form start to end col. */ | |
| 7872 len = submatch_mmatch->endpos[no].col | |
| 7873 - submatch_mmatch->startpos[no].col; | |
| 7874 if (round == 2) | |
| 418 | 7875 vim_strncpy(retval, s, len); |
| 7 | 7876 ++len; |
| 7877 } | |
| 7878 else | |
| 7879 { | |
| 7880 /* Multiple lines: take start line from start col, middle | |
| 7881 * lines completely and end line up to end col. */ | |
| 7882 len = (int)STRLEN(s); | |
| 7883 if (round == 2) | |
| 7884 { | |
| 7885 STRCPY(retval, s); | |
| 7886 retval[len] = '\n'; | |
| 7887 } | |
| 7888 ++len; | |
| 7889 ++lnum; | |
| 7890 while (lnum < submatch_mmatch->endpos[no].lnum) | |
| 7891 { | |
| 2011 | 7892 s = reg_getline_submatch(lnum++); |
| 7 | 7893 if (round == 2) |
| 7894 STRCPY(retval + len, s); | |
| 7895 len += (int)STRLEN(s); | |
| 7896 if (round == 2) | |
| 7897 retval[len] = '\n'; | |
| 7898 ++len; | |
| 7899 } | |
| 7900 if (round == 2) | |
| 2011 | 7901 STRNCPY(retval + len, reg_getline_submatch(lnum), |
| 7 | 7902 submatch_mmatch->endpos[no].col); |
| 7903 len += submatch_mmatch->endpos[no].col; | |
| 7904 if (round == 2) | |
| 7905 retval[len] = NUL; | |
| 7906 ++len; | |
| 7907 } | |
| 7908 | |
| 840 | 7909 if (retval == NULL) |
| 7 | 7910 { |
| 7911 retval = lalloc((long_u)len, TRUE); | |
| 840 | 7912 if (retval == NULL) |
| 7 | 7913 return NULL; |
| 7914 } | |
| 7915 } | |
| 7916 } | |
| 7917 else | |
| 7918 { | |
| 1815 | 7919 s = submatch_match->startp[no]; |
| 7920 if (s == NULL || submatch_match->endp[no] == NULL) | |
| 7 | 7921 retval = NULL; |
| 7922 else | |
| 7923 retval = vim_strnsave(s, (int)(submatch_match->endp[no] - s)); | |
| 7924 } | |
| 7925 | |
| 7926 return retval; | |
| 7927 } | |
| 5794 | 7928 |
| 7929 /* | |
| 7930 * Used for the submatch() function with the optional non-zero argument: get | |
| 7931 * the list of strings from the n'th submatch in allocated memory with NULs | |
| 7932 * represented in NLs. | |
| 7933 * Returns a list of allocated strings. Returns NULL when not in a ":s" | |
| 7934 * command, for a non-existing submatch and for any error. | |
| 7935 */ | |
| 7936 list_T * | |
| 7937 reg_submatch_list(no) | |
| 7938 int no; | |
| 7939 { | |
| 7940 char_u *s; | |
| 7941 linenr_T slnum; | |
| 7942 linenr_T elnum; | |
| 7943 colnr_T scol; | |
| 7944 colnr_T ecol; | |
| 7945 int i; | |
| 7946 list_T *list; | |
| 7947 int error = FALSE; | |
| 7948 | |
| 7949 if (!can_f_submatch || no < 0) | |
| 7950 return NULL; | |
| 7951 | |
| 7952 if (submatch_match == NULL) | |
| 7953 { | |
| 7954 slnum = submatch_mmatch->startpos[no].lnum; | |
| 7955 elnum = submatch_mmatch->endpos[no].lnum; | |
| 7956 if (slnum < 0 || elnum < 0) | |
| 7957 return NULL; | |
| 7958 | |
| 7959 scol = submatch_mmatch->startpos[no].col; | |
| 7960 ecol = submatch_mmatch->endpos[no].col; | |
| 7961 | |
| 7962 list = list_alloc(); | |
| 7963 if (list == NULL) | |
| 7964 return NULL; | |
| 7965 | |
| 7966 s = reg_getline_submatch(slnum) + scol; | |
| 7967 if (slnum == elnum) | |
| 7968 { | |
| 7969 if (list_append_string(list, s, ecol - scol) == FAIL) | |
| 7970 error = TRUE; | |
| 7971 } | |
| 7972 else | |
| 7973 { | |
| 7974 if (list_append_string(list, s, -1) == FAIL) | |
| 7975 error = TRUE; | |
| 7976 for (i = 1; i < elnum - slnum; i++) | |
| 7977 { | |
| 7978 s = reg_getline_submatch(slnum + i); | |
| 7979 if (list_append_string(list, s, -1) == FAIL) | |
| 7980 error = TRUE; | |
| 7981 } | |
| 7982 s = reg_getline_submatch(elnum); | |
| 7983 if (list_append_string(list, s, ecol) == FAIL) | |
| 7984 error = TRUE; | |
| 7985 } | |
| 7986 } | |
| 7987 else | |
| 7988 { | |
| 7989 s = submatch_match->startp[no]; | |
| 7990 if (s == NULL || submatch_match->endp[no] == NULL) | |
| 7991 return NULL; | |
| 7992 list = list_alloc(); | |
| 7993 if (list == NULL) | |
| 7994 return NULL; | |
| 7995 if (list_append_string(list, s, | |
| 7996 (int)(submatch_match->endp[no] - s)) == FAIL) | |
| 7997 error = TRUE; | |
| 7998 } | |
| 7999 | |
| 8000 if (error) | |
| 8001 { | |
| 8002 list_free(list, TRUE); | |
| 8003 return NULL; | |
| 8004 } | |
| 8005 return list; | |
| 8006 } | |
| 7 | 8007 #endif |
| 4444 | 8008 |
| 8009 static regengine_T bt_regengine = | |
| 8010 { | |
| 8011 bt_regcomp, | |
|
4805
66803af09906
updated for version 7.3.1149
Bram Moolenaar <bram@vim.org>
parents:
4770
diff
changeset
|
8012 bt_regfree, |
| 4444 | 8013 bt_regexec_nl, |
| 6328 | 8014 bt_regexec_multi, |
| 8015 (char_u *)"" | |
| 4444 | 8016 }; |
| 8017 | |
| 8018 #include "regexp_nfa.c" | |
| 8019 | |
| 8020 static regengine_T nfa_regengine = | |
| 8021 { | |
| 8022 nfa_regcomp, | |
|
4805
66803af09906
updated for version 7.3.1149
Bram Moolenaar <bram@vim.org>
parents:
4770
diff
changeset
|
8023 nfa_regfree, |
| 4444 | 8024 nfa_regexec_nl, |
| 6328 | 8025 nfa_regexec_multi, |
| 8026 (char_u *)"" | |
| 4444 | 8027 }; |
| 8028 | |
| 8029 /* Which regexp engine to use? Needed for vim_regcomp(). | |
| 8030 * Must match with 'regexpengine'. */ | |
| 8031 static int regexp_engine = 0; | |
| 6328 | 8032 |
| 4444 | 8033 #ifdef DEBUG |
| 8034 static char_u regname[][30] = { | |
| 8035 "AUTOMATIC Regexp Engine", | |
|
4579
7a2be4a39423
updated for version 7.3.1037
Bram Moolenaar <bram@vim.org>
parents:
4505
diff
changeset
|
8036 "BACKTRACKING Regexp Engine", |
| 4444 | 8037 "NFA Regexp Engine" |
| 8038 }; | |
| 8039 #endif | |
| 8040 | |
| 8041 /* | |
| 8042 * Compile a regular expression into internal code. | |
|
4805
66803af09906
updated for version 7.3.1149
Bram Moolenaar <bram@vim.org>
parents:
4770
diff
changeset
|
8043 * Returns the program in allocated memory. |
|
66803af09906
updated for version 7.3.1149
Bram Moolenaar <bram@vim.org>
parents:
4770
diff
changeset
|
8044 * Use vim_regfree() to free the memory. |
|
66803af09906
updated for version 7.3.1149
Bram Moolenaar <bram@vim.org>
parents:
4770
diff
changeset
|
8045 * Returns NULL for an error. |
| 4444 | 8046 */ |
| 8047 regprog_T * | |
| 8048 vim_regcomp(expr_arg, re_flags) | |
| 8049 char_u *expr_arg; | |
| 8050 int re_flags; | |
| 8051 { | |
| 8052 regprog_T *prog = NULL; | |
| 8053 char_u *expr = expr_arg; | |
| 8054 | |
| 8055 regexp_engine = p_re; | |
| 8056 | |
| 8057 /* Check for prefix "\%#=", that sets the regexp engine */ | |
| 8058 if (STRNCMP(expr, "\\%#=", 4) == 0) | |
| 8059 { | |
| 8060 int newengine = expr[4] - '0'; | |
| 8061 | |
| 8062 if (newengine == AUTOMATIC_ENGINE | |
| 8063 || newengine == BACKTRACKING_ENGINE | |
| 8064 || newengine == NFA_ENGINE) | |
| 8065 { | |
| 8066 regexp_engine = expr[4] - '0'; | |
| 8067 expr += 5; | |
| 8068 #ifdef DEBUG | |
| 5897 | 8069 smsg((char_u *)"New regexp mode selected (%d): %s", |
| 8070 regexp_engine, regname[newengine]); | |
| 4444 | 8071 #endif |
| 8072 } | |
| 8073 else | |
| 8074 { | |
| 8075 EMSG(_("E864: \\%#= can only be followed by 0, 1, or 2. The automatic engine will be used ")); | |
| 8076 regexp_engine = AUTOMATIC_ENGINE; | |
| 8077 } | |
| 8078 } | |
| 8079 bt_regengine.expr = expr; | |
| 8080 nfa_regengine.expr = expr; | |
| 8081 | |
| 8082 /* | |
| 8083 * First try the NFA engine, unless backtracking was requested. | |
| 8084 */ | |
| 8085 if (regexp_engine != BACKTRACKING_ENGINE) | |
| 6533 | 8086 prog = nfa_regengine.regcomp(expr, |
| 8087 re_flags + (regexp_engine == AUTOMATIC_ENGINE ? RE_AUTO : 0)); | |
| 4444 | 8088 else |
| 8089 prog = bt_regengine.regcomp(expr, re_flags); | |
| 8090 | |
| 6328 | 8091 /* Check for error compiling regexp with initial engine. */ |
| 8092 if (prog == NULL) | |
| 4444 | 8093 { |
| 4460 | 8094 #ifdef BT_REGEXP_DEBUG_LOG |
| 4444 | 8095 if (regexp_engine != BACKTRACKING_ENGINE) /* debugging log for NFA */ |
| 8096 { | |
| 8097 FILE *f; | |
| 4460 | 8098 f = fopen(BT_REGEXP_DEBUG_LOG_NAME, "a"); |
| 4444 | 8099 if (f) |
| 8100 { | |
|
4762
47906f888725
updated for version 7.3.1128
Bram Moolenaar <bram@vim.org>
parents:
4760
diff
changeset
|
8101 fprintf(f, "Syntax error in \"%s\"\n", expr); |
| 4444 | 8102 fclose(f); |
| 8103 } | |
| 8104 else | |
| 4460 | 8105 EMSG2("(NFA) Could not open \"%s\" to write !!!", |
| 8106 BT_REGEXP_DEBUG_LOG_NAME); | |
| 4444 | 8107 } |
| 8108 #endif | |
| 8109 /* | |
| 6328 | 8110 * If the NFA engine failed, try the backtracking engine. |
| 6533 | 8111 * The NFA engine also fails for patterns that it can't handle well |
| 8112 * but are still valid patterns, thus a retry should work. | |
| 8113 */ | |
| 4444 | 8114 if (regexp_engine == AUTOMATIC_ENGINE) |
| 6328 | 8115 { |
| 6533 | 8116 regexp_engine = BACKTRACKING_ENGINE; |
|
4762
47906f888725
updated for version 7.3.1128
Bram Moolenaar <bram@vim.org>
parents:
4760
diff
changeset
|
8117 prog = bt_regengine.regcomp(expr, re_flags); |
| 6328 | 8118 } |
|
4762
47906f888725
updated for version 7.3.1128
Bram Moolenaar <bram@vim.org>
parents:
4760
diff
changeset
|
8119 } |
| 4444 | 8120 |
| 6328 | 8121 if (prog != NULL) |
| 8122 { | |
| 8123 /* Store the info needed to call regcomp() again when the engine turns | |
| 8124 * out to be very slow when executing it. */ | |
| 8125 prog->re_engine = regexp_engine; | |
| 8126 prog->re_flags = re_flags; | |
| 8127 } | |
| 8128 | |
| 4444 | 8129 return prog; |
| 8130 } | |
| 8131 | |
| 8132 /* | |
|
4805
66803af09906
updated for version 7.3.1149
Bram Moolenaar <bram@vim.org>
parents:
4770
diff
changeset
|
8133 * Free a compiled regexp program, returned by vim_regcomp(). |
|
66803af09906
updated for version 7.3.1149
Bram Moolenaar <bram@vim.org>
parents:
4770
diff
changeset
|
8134 */ |
|
66803af09906
updated for version 7.3.1149
Bram Moolenaar <bram@vim.org>
parents:
4770
diff
changeset
|
8135 void |
|
66803af09906
updated for version 7.3.1149
Bram Moolenaar <bram@vim.org>
parents:
4770
diff
changeset
|
8136 vim_regfree(prog) |
|
66803af09906
updated for version 7.3.1149
Bram Moolenaar <bram@vim.org>
parents:
4770
diff
changeset
|
8137 regprog_T *prog; |
|
66803af09906
updated for version 7.3.1149
Bram Moolenaar <bram@vim.org>
parents:
4770
diff
changeset
|
8138 { |
|
66803af09906
updated for version 7.3.1149
Bram Moolenaar <bram@vim.org>
parents:
4770
diff
changeset
|
8139 if (prog != NULL) |
|
66803af09906
updated for version 7.3.1149
Bram Moolenaar <bram@vim.org>
parents:
4770
diff
changeset
|
8140 prog->engine->regfree(prog); |
|
66803af09906
updated for version 7.3.1149
Bram Moolenaar <bram@vim.org>
parents:
4770
diff
changeset
|
8141 } |
|
66803af09906
updated for version 7.3.1149
Bram Moolenaar <bram@vim.org>
parents:
4770
diff
changeset
|
8142 |
| 6328 | 8143 #ifdef FEAT_EVAL |
| 8144 static void report_re_switch __ARGS((char_u *pat)); | |
| 8145 | |
| 8146 static void | |
| 8147 report_re_switch(pat) | |
| 8148 char_u *pat; | |
| 8149 { | |
| 8150 if (p_verbose > 0) | |
| 8151 { | |
| 8152 verbose_enter(); | |
| 8153 MSG_PUTS(_("Switching to backtracking RE engine for pattern: ")); | |
| 8154 MSG_PUTS(pat); | |
| 8155 verbose_leave(); | |
| 8156 } | |
| 8157 } | |
| 8158 #endif | |
| 8159 | |
| 8160 static int vim_regexec_both __ARGS((regmatch_T *rmp, char_u *line, colnr_T col, int nl)); | |
| 8161 | |
|
4805
66803af09906
updated for version 7.3.1149
Bram Moolenaar <bram@vim.org>
parents:
4770
diff
changeset
|
8162 /* |
| 4444 | 8163 * Match a regexp against a string. |
| 8164 * "rmp->regprog" is a compiled regexp as returned by vim_regcomp(). | |
| 6375 | 8165 * Note: "rmp->regprog" may be freed and changed. |
| 4444 | 8166 * Uses curbuf for line count and 'iskeyword'. |
| 6328 | 8167 * When "nl" is TRUE consider a "\n" in "line" to be a line break. |
| 4444 | 8168 * |
| 8169 * Return TRUE if there is a match, FALSE if not. | |
| 8170 */ | |
| 6328 | 8171 static int |
| 8172 vim_regexec_both(rmp, line, col, nl) | |
| 8173 regmatch_T *rmp; | |
| 8174 char_u *line; /* string to match against */ | |
| 8175 colnr_T col; /* column to start looking for match */ | |
| 8176 int nl; | |
| 8177 { | |
| 8178 int result = rmp->regprog->engine->regexec_nl(rmp, line, col, nl); | |
| 8179 | |
| 8180 /* NFA engine aborted because it's very slow. */ | |
| 8181 if (rmp->regprog->re_engine == AUTOMATIC_ENGINE | |
| 8182 && result == NFA_TOO_EXPENSIVE) | |
| 8183 { | |
| 8184 int save_p_re = p_re; | |
| 8185 int re_flags = rmp->regprog->re_flags; | |
| 8186 char_u *pat = vim_strsave(((nfa_regprog_T *)rmp->regprog)->pattern); | |
| 8187 | |
| 8188 p_re = BACKTRACKING_ENGINE; | |
| 8189 vim_regfree(rmp->regprog); | |
| 8190 if (pat != NULL) | |
| 8191 { | |
| 8192 #ifdef FEAT_EVAL | |
| 8193 report_re_switch(pat); | |
| 8194 #endif | |
| 8195 rmp->regprog = vim_regcomp(pat, re_flags); | |
| 8196 if (rmp->regprog != NULL) | |
| 8197 result = rmp->regprog->engine->regexec_nl(rmp, line, col, nl); | |
| 8198 vim_free(pat); | |
| 8199 } | |
| 8200 | |
| 8201 p_re = save_p_re; | |
| 8202 } | |
| 6390 | 8203 return result > 0; |
| 6328 | 8204 } |
| 8205 | |
| 6375 | 8206 /* |
| 8207 * Note: "*prog" may be freed and changed. | |
| 6390 | 8208 * Return TRUE if there is a match, FALSE if not. |
| 6375 | 8209 */ |
| 8210 int | |
| 8211 vim_regexec_prog(prog, ignore_case, line, col) | |
| 8212 regprog_T **prog; | |
| 8213 int ignore_case; | |
| 8214 char_u *line; | |
| 8215 colnr_T col; | |
| 8216 { | |
| 8217 int r; | |
| 8218 regmatch_T regmatch; | |
| 8219 | |
| 8220 regmatch.regprog = *prog; | |
| 8221 regmatch.rm_ic = ignore_case; | |
| 8222 r = vim_regexec_both(®match, line, col, FALSE); | |
| 8223 *prog = regmatch.regprog; | |
| 8224 return r; | |
| 8225 } | |
| 8226 | |
| 8227 /* | |
| 8228 * Note: "rmp->regprog" may be freed and changed. | |
| 6390 | 8229 * Return TRUE if there is a match, FALSE if not. |
| 6375 | 8230 */ |
| 4444 | 8231 int |
| 8232 vim_regexec(rmp, line, col) | |
| 6328 | 8233 regmatch_T *rmp; |
| 8234 char_u *line; | |
| 8235 colnr_T col; | |
| 4444 | 8236 { |
| 6328 | 8237 return vim_regexec_both(rmp, line, col, FALSE); |
| 4444 | 8238 } |
| 8239 | |
| 8240 #if defined(FEAT_MODIFY_FNAME) || defined(FEAT_EVAL) \ | |
| 8241 || defined(FIND_REPLACE_DIALOG) || defined(PROTO) | |
| 8242 /* | |
| 8243 * Like vim_regexec(), but consider a "\n" in "line" to be a line break. | |
| 6375 | 8244 * Note: "rmp->regprog" may be freed and changed. |
| 6390 | 8245 * Return TRUE if there is a match, FALSE if not. |
| 4444 | 8246 */ |
| 8247 int | |
| 8248 vim_regexec_nl(rmp, line, col) | |
| 6328 | 8249 regmatch_T *rmp; |
| 8250 char_u *line; | |
| 8251 colnr_T col; | |
| 4444 | 8252 { |
| 6328 | 8253 return vim_regexec_both(rmp, line, col, TRUE); |
| 4444 | 8254 } |
| 8255 #endif | |
| 8256 | |
| 8257 /* | |
| 8258 * Match a regexp against multiple lines. | |
| 8259 * "rmp->regprog" is a compiled regexp as returned by vim_regcomp(). | |
| 6375 | 8260 * Note: "rmp->regprog" may be freed and changed. |
| 4444 | 8261 * Uses curbuf for line count and 'iskeyword'. |
| 8262 * | |
| 8263 * Return zero if there is no match. Return number of lines contained in the | |
| 8264 * match otherwise. | |
| 8265 */ | |
| 8266 long | |
| 8267 vim_regexec_multi(rmp, win, buf, lnum, col, tm) | |
| 8268 regmmatch_T *rmp; | |
| 8269 win_T *win; /* window in which to search or NULL */ | |
| 8270 buf_T *buf; /* buffer in which to search */ | |
| 8271 linenr_T lnum; /* nr of line to start looking for match */ | |
| 8272 colnr_T col; /* column to start looking for match */ | |
| 8273 proftime_T *tm; /* timeout limit or NULL */ | |
| 8274 { | |
| 6328 | 8275 int result = rmp->regprog->engine->regexec_multi( |
| 8276 rmp, win, buf, lnum, col, tm); | |
| 8277 | |
| 8278 /* NFA engine aborted because it's very slow. */ | |
| 8279 if (rmp->regprog->re_engine == AUTOMATIC_ENGINE | |
| 8280 && result == NFA_TOO_EXPENSIVE) | |
| 8281 { | |
| 8282 int save_p_re = p_re; | |
| 8283 int re_flags = rmp->regprog->re_flags; | |
| 8284 char_u *pat = vim_strsave(((nfa_regprog_T *)rmp->regprog)->pattern); | |
| 8285 | |
| 8286 p_re = BACKTRACKING_ENGINE; | |
| 8287 vim_regfree(rmp->regprog); | |
| 8288 if (pat != NULL) | |
| 8289 { | |
| 8290 #ifdef FEAT_EVAL | |
| 8291 report_re_switch(pat); | |
| 8292 #endif | |
| 8293 rmp->regprog = vim_regcomp(pat, re_flags); | |
| 8294 if (rmp->regprog != NULL) | |
| 8295 result = rmp->regprog->engine->regexec_multi( | |
| 8296 rmp, win, buf, lnum, col, tm); | |
| 8297 vim_free(pat); | |
| 8298 } | |
| 8299 p_re = save_p_re; | |
| 8300 } | |
| 8301 | |
| 6390 | 8302 return result <= 0 ? 0 : result; |
| 4444 | 8303 } |