Mercurial > vim
annotate src/regexp.c @ 26534:28745eec1dda v8.2.3796
patch 8.2.3796: the funcexe_T struct members are not named consistently
Commit: https://github.com/vim/vim/commit/851f86b951cdd67ad9cf3149e46169d1375c8d82
Author: Bram Moolenaar <Bram@vim.org>
Date: Mon Dec 13 14:26:44 2021 +0000
patch 8.2.3796: the funcexe_T struct members are not named consistently
Problem: The funcexe_T struct members are not named consistently.
Solution: Prefix "fe_" to all the members.
| author | Bram Moolenaar <Bram@vim.org> |
|---|---|
| date | Mon, 13 Dec 2021 15:30:03 +0100 |
| parents | ef0c07cbf53f |
| children | 48d6f187e9c0 |
| rev | line source |
|---|---|
|
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commit https://github.com/vim/vim/commit/edf3f97ae2af024708ebb4ac614227327033ca47
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1 /* vi:set ts=8 sts=4 sw=4 noet: |
| 7 | 2 * |
| 3 * Handling of regular expressions: vim_regcomp(), vim_regexec(), vim_regsub() | |
| 4 */ | |
| 5 | |
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patch 8.1.1202: always get regexp debugging logs when building with -DDEBUG
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6 // By default: do not create debugging logs or files related to regular |
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patch 8.1.1202: always get regexp debugging logs when building with -DDEBUG
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7 // expressions, even when compiling with -DDEBUG. |
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8 // Uncomment the second line to get the regexp debugging. |
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9 #undef DEBUG |
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10 // #define DEBUG |
| 4444 | 11 |
| 7 | 12 #include "vim.h" |
| 13 | |
| 4444 | 14 #ifdef DEBUG |
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15 // show/save debugging data when BT engine is used |
| 4444 | 16 # define BT_REGEXP_DUMP |
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17 // save the debugging data to a file instead of displaying it |
| 4444 | 18 # define BT_REGEXP_LOG |
| 4460 | 19 # define BT_REGEXP_DEBUG_LOG |
| 20 # define BT_REGEXP_DEBUG_LOG_NAME "bt_regexp_debug.log" | |
| 4444 | 21 #endif |
| 7 | 22 |
| 23 /* | |
| 24 * Magic characters have a special meaning, they don't match literally. | |
| 25 * Magic characters are negative. This separates them from literal characters | |
| 26 * (possibly multi-byte). Only ASCII characters can be Magic. | |
| 27 */ | |
| 28 #define Magic(x) ((int)(x) - 256) | |
| 29 #define un_Magic(x) ((x) + 256) | |
| 30 #define is_Magic(x) ((x) < 0) | |
| 31 | |
| 32 static int | |
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33 no_Magic(int x) |
| 7 | 34 { |
| 35 if (is_Magic(x)) | |
| 36 return un_Magic(x); | |
| 37 return x; | |
| 38 } | |
| 39 | |
| 40 static int | |
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41 toggle_Magic(int x) |
| 7 | 42 { |
| 43 if (is_Magic(x)) | |
| 44 return un_Magic(x); | |
| 45 return Magic(x); | |
| 46 } | |
| 47 | |
| 48 /* | |
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49 * The first byte of the BT regexp internal "program" is actually this magic |
| 7 | 50 * number; the start node begins in the second byte. It's used to catch the |
| 51 * most severe mutilation of the program by the caller. | |
| 52 */ | |
| 53 | |
| 54 #define REGMAGIC 0234 | |
| 55 | |
| 56 /* | |
| 57 * Utility definitions. | |
| 58 */ | |
| 59 #define UCHARAT(p) ((int)*(char_u *)(p)) | |
| 60 | |
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61 // Used for an error (down from) vim_regcomp(): give the error message, set |
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62 // rc_did_emsg and return NULL |
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63 #define EMSG_RET_NULL(m) return (emsg((m)), rc_did_emsg = TRUE, (void *)NULL) |
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64 #define IEMSG_RET_NULL(m) return (iemsg((m)), rc_did_emsg = TRUE, (void *)NULL) |
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65 #define EMSG_RET_FAIL(m) return (emsg((m)), rc_did_emsg = TRUE, FAIL) |
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66 #define EMSG2_RET_NULL(m, c) return (semsg((const char *)(m), (c) ? "" : "\\"), rc_did_emsg = TRUE, (void *)NULL) |
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67 #define EMSG3_RET_NULL(m, c, a) return (semsg((const char *)(m), (c) ? "" : "\\", (a)), rc_did_emsg = TRUE, (void *)NULL) |
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68 #define EMSG2_RET_FAIL(m, c) return (semsg((const char *)(m), (c) ? "" : "\\"), rc_did_emsg = TRUE, FAIL) |
| 4444 | 69 #define EMSG_ONE_RET_NULL EMSG2_RET_NULL(_("E369: invalid item in %s%%[]"), reg_magic == MAGIC_ALL) |
| 7 | 70 |
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commit https://github.com/vim/vim/commit/95f096030ed1a8afea028f2ea295d6f6a70f466f
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71 |
| 7 | 72 #define MAX_LIMIT (32767L << 16L) |
| 73 | |
| 4444 | 74 static char_u e_missingbracket[] = N_("E769: Missing ] after %s["); |
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patch 8.0.0623: error for invalid regexp is not very informative
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75 static char_u e_reverse_range[] = N_("E944: Reverse range in character class"); |
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76 static char_u e_large_class[] = N_("E945: Range too large in character class"); |
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patch 8.1.0192: executing regexp recursively fails with a crash
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77 static char_u e_recursive[] = N_("E956: Cannot use pattern recursively"); |
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78 |
| 7 | 79 #define NOT_MULTI 0 |
| 80 #define MULTI_ONE 1 | |
| 81 #define MULTI_MULT 2 | |
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82 |
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83 // return values for regmatch() |
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84 #define RA_FAIL 1 // something failed, abort |
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85 #define RA_CONT 2 // continue in inner loop |
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86 #define RA_BREAK 3 // break inner loop |
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87 #define RA_MATCH 4 // successful match |
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88 #define RA_NOMATCH 5 // didn't match |
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89 |
| 7 | 90 /* |
| 91 * Return NOT_MULTI if c is not a "multi" operator. | |
| 92 * Return MULTI_ONE if c is a single "multi" operator. | |
| 93 * Return MULTI_MULT if c is a multi "multi" operator. | |
| 94 */ | |
| 95 static int | |
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96 re_multi_type(int c) |
| 7 | 97 { |
| 98 if (c == Magic('@') || c == Magic('=') || c == Magic('?')) | |
| 99 return MULTI_ONE; | |
| 100 if (c == Magic('*') || c == Magic('+') || c == Magic('{')) | |
| 101 return MULTI_MULT; | |
| 102 return NOT_MULTI; | |
| 103 } | |
| 104 | |
| 359 | 105 static char_u *reg_prev_sub = NULL; |
| 106 | |
| 7 | 107 /* |
| 108 * REGEXP_INRANGE contains all characters which are always special in a [] | |
| 109 * range after '\'. | |
| 110 * REGEXP_ABBR contains all characters which act as abbreviations after '\'. | |
| 111 * These are: | |
| 112 * \n - New line (NL). | |
| 113 * \r - Carriage Return (CR). | |
| 114 * \t - Tab (TAB). | |
| 115 * \e - Escape (ESC). | |
| 116 * \b - Backspace (Ctrl_H). | |
| 24 | 117 * \d - Character code in decimal, eg \d123 |
| 118 * \o - Character code in octal, eg \o80 | |
| 119 * \x - Character code in hex, eg \x4a | |
| 120 * \u - Multibyte character code, eg \u20ac | |
| 121 * \U - Long multibyte character code, eg \U12345678 | |
| 7 | 122 */ |
| 123 static char_u REGEXP_INRANGE[] = "]^-n\\"; | |
| 24 | 124 static char_u REGEXP_ABBR[] = "nrtebdoxuU"; |
| 7 | 125 |
| 126 /* | |
| 127 * Translate '\x' to its control character, except "\n", which is Magic. | |
| 128 */ | |
| 129 static int | |
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130 backslash_trans(int c) |
| 7 | 131 { |
| 132 switch (c) | |
| 133 { | |
| 134 case 'r': return CAR; | |
| 135 case 't': return TAB; | |
| 136 case 'e': return ESC; | |
| 137 case 'b': return BS; | |
| 138 } | |
| 139 return c; | |
| 140 } | |
| 141 | |
| 142 /* | |
| 167 | 143 * Check for a character class name "[:name:]". "pp" points to the '['. |
| 7 | 144 * Returns one of the CLASS_ items. CLASS_NONE means that no item was |
| 145 * recognized. Otherwise "pp" is advanced to after the item. | |
| 146 */ | |
| 147 static int | |
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148 get_char_class(char_u **pp) |
| 7 | 149 { |
| 150 static const char *(class_names[]) = | |
| 151 { | |
| 152 "alnum:]", | |
| 153 #define CLASS_ALNUM 0 | |
| 154 "alpha:]", | |
| 155 #define CLASS_ALPHA 1 | |
| 156 "blank:]", | |
| 157 #define CLASS_BLANK 2 | |
| 158 "cntrl:]", | |
| 159 #define CLASS_CNTRL 3 | |
| 160 "digit:]", | |
| 161 #define CLASS_DIGIT 4 | |
| 162 "graph:]", | |
| 163 #define CLASS_GRAPH 5 | |
| 164 "lower:]", | |
| 165 #define CLASS_LOWER 6 | |
| 166 "print:]", | |
| 167 #define CLASS_PRINT 7 | |
| 168 "punct:]", | |
| 169 #define CLASS_PUNCT 8 | |
| 170 "space:]", | |
| 171 #define CLASS_SPACE 9 | |
| 172 "upper:]", | |
| 173 #define CLASS_UPPER 10 | |
| 174 "xdigit:]", | |
| 175 #define CLASS_XDIGIT 11 | |
| 176 "tab:]", | |
| 177 #define CLASS_TAB 12 | |
| 178 "return:]", | |
| 179 #define CLASS_RETURN 13 | |
| 180 "backspace:]", | |
| 181 #define CLASS_BACKSPACE 14 | |
| 182 "escape:]", | |
| 183 #define CLASS_ESCAPE 15 | |
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184 "ident:]", |
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185 #define CLASS_IDENT 16 |
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186 "keyword:]", |
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187 #define CLASS_KEYWORD 17 |
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188 "fname:]", |
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189 #define CLASS_FNAME 18 |
| 7 | 190 }; |
| 191 #define CLASS_NONE 99 | |
| 192 int i; | |
| 193 | |
| 194 if ((*pp)[1] == ':') | |
| 195 { | |
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196 for (i = 0; i < (int)ARRAY_LENGTH(class_names); ++i) |
| 7 | 197 if (STRNCMP(*pp + 2, class_names[i], STRLEN(class_names[i])) == 0) |
| 198 { | |
| 199 *pp += STRLEN(class_names[i]) + 2; | |
| 200 return i; | |
| 201 } | |
| 202 } | |
| 203 return CLASS_NONE; | |
| 204 } | |
| 205 | |
| 206 /* | |
| 207 * Specific version of character class functions. | |
| 208 * Using a table to keep this fast. | |
| 209 */ | |
| 210 static short class_tab[256]; | |
| 211 | |
| 212 #define RI_DIGIT 0x01 | |
| 213 #define RI_HEX 0x02 | |
| 214 #define RI_OCTAL 0x04 | |
| 215 #define RI_WORD 0x08 | |
| 216 #define RI_HEAD 0x10 | |
| 217 #define RI_ALPHA 0x20 | |
| 218 #define RI_LOWER 0x40 | |
| 219 #define RI_UPPER 0x80 | |
| 220 #define RI_WHITE 0x100 | |
| 221 | |
| 222 static void | |
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223 init_class_tab(void) |
| 7 | 224 { |
| 225 int i; | |
| 226 static int done = FALSE; | |
| 227 | |
| 228 if (done) | |
| 229 return; | |
| 230 | |
| 231 for (i = 0; i < 256; ++i) | |
| 232 { | |
| 233 if (i >= '0' && i <= '7') | |
| 234 class_tab[i] = RI_DIGIT + RI_HEX + RI_OCTAL + RI_WORD; | |
| 235 else if (i >= '8' && i <= '9') | |
| 236 class_tab[i] = RI_DIGIT + RI_HEX + RI_WORD; | |
| 237 else if (i >= 'a' && i <= 'f') | |
| 238 class_tab[i] = RI_HEX + RI_WORD + RI_HEAD + RI_ALPHA + RI_LOWER; | |
| 239 #ifdef EBCDIC | |
| 240 else if ((i >= 'g' && i <= 'i') || (i >= 'j' && i <= 'r') | |
| 241 || (i >= 's' && i <= 'z')) | |
| 242 #else | |
| 243 else if (i >= 'g' && i <= 'z') | |
| 244 #endif | |
| 245 class_tab[i] = RI_WORD + RI_HEAD + RI_ALPHA + RI_LOWER; | |
| 246 else if (i >= 'A' && i <= 'F') | |
| 247 class_tab[i] = RI_HEX + RI_WORD + RI_HEAD + RI_ALPHA + RI_UPPER; | |
| 248 #ifdef EBCDIC | |
| 249 else if ((i >= 'G' && i <= 'I') || ( i >= 'J' && i <= 'R') | |
| 250 || (i >= 'S' && i <= 'Z')) | |
| 251 #else | |
| 252 else if (i >= 'G' && i <= 'Z') | |
| 253 #endif | |
| 254 class_tab[i] = RI_WORD + RI_HEAD + RI_ALPHA + RI_UPPER; | |
| 255 else if (i == '_') | |
| 256 class_tab[i] = RI_WORD + RI_HEAD; | |
| 257 else | |
| 258 class_tab[i] = 0; | |
| 259 } | |
| 260 class_tab[' '] |= RI_WHITE; | |
| 261 class_tab['\t'] |= RI_WHITE; | |
| 262 done = TRUE; | |
| 263 } | |
| 264 | |
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265 #define ri_digit(c) (c < 0x100 && (class_tab[c] & RI_DIGIT)) |
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266 #define ri_hex(c) (c < 0x100 && (class_tab[c] & RI_HEX)) |
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267 #define ri_octal(c) (c < 0x100 && (class_tab[c] & RI_OCTAL)) |
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268 #define ri_word(c) (c < 0x100 && (class_tab[c] & RI_WORD)) |
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269 #define ri_head(c) (c < 0x100 && (class_tab[c] & RI_HEAD)) |
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270 #define ri_alpha(c) (c < 0x100 && (class_tab[c] & RI_ALPHA)) |
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271 #define ri_lower(c) (c < 0x100 && (class_tab[c] & RI_LOWER)) |
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272 #define ri_upper(c) (c < 0x100 && (class_tab[c] & RI_UPPER)) |
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273 #define ri_white(c) (c < 0x100 && (class_tab[c] & RI_WHITE)) |
| 7 | 274 |
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275 // flags for regflags |
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276 #define RF_ICASE 1 // ignore case |
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277 #define RF_NOICASE 2 // don't ignore case |
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278 #define RF_HASNL 4 // can match a NL |
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279 #define RF_ICOMBINE 8 // ignore combining characters |
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280 #define RF_LOOKBH 16 // uses "\@<=" or "\@<!" |
| 7 | 281 |
| 282 /* | |
| 283 * Global work variables for vim_regcomp(). | |
| 284 */ | |
| 285 | |
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286 static char_u *regparse; // Input-scan pointer. |
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287 static int regnpar; // () count. |
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288 static int wants_nfa; // regex should use NFA engine |
| 7 | 289 #ifdef FEAT_SYN_HL |
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290 static int regnzpar; // \z() count. |
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291 static int re_has_z; // \z item detected |
| 7 | 292 #endif |
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293 static unsigned regflags; // RF_ flags for prog |
| 7 | 294 #if defined(FEAT_SYN_HL) || defined(PROTO) |
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295 static int had_eol; // TRUE when EOL found by vim_regcomp() |
| 7 | 296 #endif |
| 297 | |
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298 static magic_T reg_magic; // magicness of the pattern |
| 7 | 299 |
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300 static int reg_string; // matching with a string instead of a buffer |
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301 // line |
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302 static int reg_strict; // "[abc" is illegal |
| 7 | 303 |
| 304 /* | |
| 305 * META contains all characters that may be magic, except '^' and '$'. | |
| 306 */ | |
| 307 | |
| 308 #ifdef EBCDIC | |
| 309 static char_u META[] = "%&()*+.123456789<=>?@ACDFHIKLMOPSUVWX[_acdfhiklmnopsuvwxz{|~"; | |
| 310 #else | |
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311 // META[] is used often enough to justify turning it into a table. |
| 7 | 312 static char_u META_flags[] = { |
| 313 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
| 314 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
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315 // % & ( ) * + . |
| 7 | 316 0, 0, 0, 0, 0, 1, 1, 0, 1, 1, 1, 1, 0, 0, 1, 0, |
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317 // 1 2 3 4 5 6 7 8 9 < = > ? |
| 7 | 318 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 1, 1, |
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319 // @ A C D F H I K L M O |
| 7 | 320 1, 1, 0, 1, 1, 0, 1, 0, 1, 1, 0, 1, 1, 1, 0, 1, |
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321 // P S U V W X Z [ _ |
| 7 | 322 1, 0, 0, 1, 0, 1, 1, 1, 1, 0, 1, 1, 0, 0, 0, 1, |
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323 // a c d f h i k l m n o |
| 7 | 324 0, 1, 0, 1, 1, 0, 1, 0, 1, 1, 0, 1, 1, 1, 1, 1, |
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325 // p s u v w x z { | ~ |
| 7 | 326 1, 0, 0, 1, 0, 1, 1, 1, 1, 0, 1, 1, 1, 0, 1 |
| 327 }; | |
| 328 #endif | |
| 329 | |
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330 static int curchr; // currently parsed character |
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331 // Previous character. Note: prevchr is sometimes -1 when we are not at the |
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332 // start, eg in /[ ^I]^ the pattern was never found even if it existed, |
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333 // because ^ was taken to be magic -- webb |
| 4444 | 334 static int prevchr; |
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335 static int prevprevchr; // previous-previous character |
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336 static int nextchr; // used for ungetchr() |
| 7 | 337 |
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338 // arguments for reg() |
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339 #define REG_NOPAREN 0 // toplevel reg() |
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340 #define REG_PAREN 1 // \(\) |
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341 #define REG_ZPAREN 2 // \z(\) |
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342 #define REG_NPAREN 3 // \%(\) |
| 7 | 343 |
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344 typedef struct |
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345 { |
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346 char_u *regparse; |
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347 int prevchr_len; |
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348 int curchr; |
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349 int prevchr; |
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350 int prevprevchr; |
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351 int nextchr; |
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352 int at_start; |
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353 int prev_at_start; |
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354 int regnpar; |
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355 } parse_state_T; |
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356 |
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357 static void initchr(char_u *); |
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358 static int getchr(void); |
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359 static void skipchr_keepstart(void); |
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360 static int peekchr(void); |
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361 static void skipchr(void); |
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362 static void ungetchr(void); |
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363 static long gethexchrs(int maxinputlen); |
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364 static long getoctchrs(void); |
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365 static long getdecchrs(void); |
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366 static int coll_get_char(void); |
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367 static int prog_magic_wrong(void); |
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368 static int cstrncmp(char_u *s1, char_u *s2, int *n); |
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369 static char_u *cstrchr(char_u *, int); |
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370 static int re_mult_next(char *what); |
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371 static int reg_iswordc(int); |
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372 #ifdef FEAT_EVAL |
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373 static void report_re_switch(char_u *pat); |
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374 #endif |
| 7 | 375 |
| 4444 | 376 static regengine_T bt_regengine; |
| 377 static regengine_T nfa_regengine; | |
| 378 | |
| 7 | 379 /* |
| 380 * Return TRUE if compiled regular expression "prog" can match a line break. | |
| 381 */ | |
| 382 int | |
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383 re_multiline(regprog_T *prog) |
| 7 | 384 { |
| 385 return (prog->regflags & RF_HASNL); | |
| 386 } | |
| 387 | |
| 388 /* | |
| 167 | 389 * Check for an equivalence class name "[=a=]". "pp" points to the '['. |
| 390 * Returns a character representing the class. Zero means that no item was | |
| 391 * recognized. Otherwise "pp" is advanced to after the item. | |
| 392 */ | |
| 393 static int | |
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394 get_equi_class(char_u **pp) |
| 167 | 395 { |
| 396 int c; | |
| 397 int l = 1; | |
| 398 char_u *p = *pp; | |
| 399 | |
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400 if (p[1] == '=' && p[2] != NUL) |
| 167 | 401 { |
| 402 if (has_mbyte) | |
| 474 | 403 l = (*mb_ptr2len)(p + 2); |
| 167 | 404 if (p[l + 2] == '=' && p[l + 3] == ']') |
| 405 { | |
| 406 if (has_mbyte) | |
| 407 c = mb_ptr2char(p + 2); | |
| 408 else | |
| 409 c = p[2]; | |
| 410 *pp += l + 4; | |
| 411 return c; | |
| 412 } | |
| 413 } | |
| 414 return 0; | |
| 415 } | |
| 416 | |
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417 #ifdef EBCDIC |
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418 /* |
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419 * Table for equivalence class "c". (IBM-1047) |
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420 */ |
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421 static char *EQUIVAL_CLASS_C[16] = { |
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422 "A\x62\x63\x64\x65\x66\x67", |
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423 "C\x68", |
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424 "E\x71\x72\x73\x74", |
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425 "I\x75\x76\x77\x78", |
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426 "N\x69", |
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427 "O\xEB\xEC\xED\xEE\xEF\x80", |
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428 "U\xFB\xFC\xFD\xFE", |
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429 "Y\xBA", |
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430 "a\x42\x43\x44\x45\x46\x47", |
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431 "c\x48", |
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432 "e\x51\x52\x53\x54", |
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433 "i\x55\x56\x57\x58", |
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434 "n\x49", |
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435 "o\xCB\xCC\xCD\xCE\xCF\x70", |
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436 "u\xDB\xDC\xDD\xDE", |
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437 "y\x8D\xDF", |
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438 }; |
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439 #endif |
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440 |
| 167 | 441 /* |
| 442 * Check for a collating element "[.a.]". "pp" points to the '['. | |
| 443 * Returns a character. Zero means that no item was recognized. Otherwise | |
| 444 * "pp" is advanced to after the item. | |
| 445 * Currently only single characters are recognized! | |
| 446 */ | |
| 447 static int | |
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448 get_coll_element(char_u **pp) |
| 167 | 449 { |
| 450 int c; | |
| 451 int l = 1; | |
| 452 char_u *p = *pp; | |
| 453 | |
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454 if (p[0] != NUL && p[1] == '.' && p[2] != NUL) |
| 167 | 455 { |
| 456 if (has_mbyte) | |
| 474 | 457 l = (*mb_ptr2len)(p + 2); |
| 167 | 458 if (p[l + 2] == '.' && p[l + 3] == ']') |
| 459 { | |
| 460 if (has_mbyte) | |
| 461 c = mb_ptr2char(p + 2); | |
| 462 else | |
| 463 c = p[2]; | |
| 464 *pp += l + 4; | |
| 465 return c; | |
| 466 } | |
| 467 } | |
| 468 return 0; | |
| 469 } | |
| 470 | |
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471 static int reg_cpo_lit; // 'cpoptions' contains 'l' flag |
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472 static int reg_cpo_bsl; // 'cpoptions' contains '\' flag |
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473 |
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474 static void |
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475 get_cpo_flags(void) |
|
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476 { |
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477 reg_cpo_lit = vim_strchr(p_cpo, CPO_LITERAL) != NULL; |
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478 reg_cpo_bsl = vim_strchr(p_cpo, CPO_BACKSL) != NULL; |
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479 } |
| 167 | 480 |
| 481 /* | |
| 482 * Skip over a "[]" range. | |
| 483 * "p" must point to the character after the '['. | |
| 484 * The returned pointer is on the matching ']', or the terminating NUL. | |
| 485 */ | |
| 486 static char_u * | |
|
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487 skip_anyof(char_u *p) |
| 167 | 488 { |
| 489 int l; | |
| 490 | |
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491 if (*p == '^') // Complement of range. |
| 167 | 492 ++p; |
| 493 if (*p == ']' || *p == '-') | |
| 494 ++p; | |
| 495 while (*p != NUL && *p != ']') | |
| 496 { | |
| 474 | 497 if (has_mbyte && (l = (*mb_ptr2len)(p)) > 1) |
| 167 | 498 p += l; |
| 499 else | |
| 500 if (*p == '-') | |
| 501 { | |
| 502 ++p; | |
| 503 if (*p != ']' && *p != NUL) | |
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504 MB_PTR_ADV(p); |
| 167 | 505 } |
| 506 else if (*p == '\\' | |
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507 && !reg_cpo_bsl |
| 167 | 508 && (vim_strchr(REGEXP_INRANGE, p[1]) != NULL |
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509 || (!reg_cpo_lit && vim_strchr(REGEXP_ABBR, p[1]) != NULL))) |
| 167 | 510 p += 2; |
| 511 else if (*p == '[') | |
| 512 { | |
| 513 if (get_char_class(&p) == CLASS_NONE | |
| 514 && get_equi_class(&p) == 0 | |
| 6830 | 515 && get_coll_element(&p) == 0 |
| 516 && *p != NUL) | |
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517 ++p; // it is not a class name and not NUL |
| 167 | 518 } |
| 519 else | |
| 520 ++p; | |
| 521 } | |
| 522 | |
| 523 return p; | |
| 524 } | |
| 525 | |
| 526 /* | |
| 7 | 527 * Skip past regular expression. |
|
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528 * Stop at end of "startp" or where "delim" is found ('/', '?', etc). |
| 7 | 529 * Take care of characters with a backslash in front of it. |
| 530 * Skip strings inside [ and ]. | |
| 531 */ | |
| 532 char_u * | |
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533 skip_regexp( |
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534 char_u *startp, |
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535 int delim, |
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536 int magic) |
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537 { |
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538 return skip_regexp_ex(startp, delim, magic, NULL, NULL, NULL); |
|
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539 } |
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540 |
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541 /* |
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542 * Call skip_regexp() and when the delimiter does not match give an error and |
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543 * return NULL. |
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544 */ |
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545 char_u * |
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546 skip_regexp_err( |
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547 char_u *startp, |
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548 int delim, |
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549 int magic) |
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550 { |
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551 char_u *p = skip_regexp(startp, delim, magic); |
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552 |
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553 if (*p != delim) |
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554 { |
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555 semsg(_("E654: missing delimiter after search pattern: %s"), startp); |
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556 return NULL; |
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557 } |
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558 return p; |
|
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559 } |
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560 |
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561 /* |
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562 * skip_regexp() with extra arguments: |
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563 * When "newp" is not NULL and "dirc" is '?', make an allocated copy of the |
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564 * expression and change "\?" to "?". If "*newp" is not NULL the expression |
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565 * is changed in-place. |
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566 * If a "\?" is changed to "?" then "dropped" is incremented, unless NULL. |
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567 * If "magic_val" is not NULL, returns the effective magicness of the pattern |
|
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568 */ |
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569 char_u * |
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570 skip_regexp_ex( |
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571 char_u *startp, |
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572 int dirc, |
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573 int magic, |
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574 char_u **newp, |
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575 int *dropped, |
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576 magic_T *magic_val) |
| 7 | 577 { |
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578 magic_T mymagic; |
| 7 | 579 char_u *p = startp; |
| 580 | |
| 581 if (magic) | |
| 582 mymagic = MAGIC_ON; | |
| 583 else | |
| 584 mymagic = MAGIC_OFF; | |
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585 get_cpo_flags(); |
| 7 | 586 |
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587 for (; p[0] != NUL; MB_PTR_ADV(p)) |
| 7 | 588 { |
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589 if (p[0] == dirc) // found end of regexp |
| 7 | 590 break; |
| 591 if ((p[0] == '[' && mymagic >= MAGIC_ON) | |
| 592 || (p[0] == '\\' && p[1] == '[' && mymagic <= MAGIC_OFF)) | |
| 593 { | |
| 594 p = skip_anyof(p + 1); | |
| 595 if (p[0] == NUL) | |
| 596 break; | |
| 597 } | |
| 598 else if (p[0] == '\\' && p[1] != NUL) | |
| 599 { | |
| 600 if (dirc == '?' && newp != NULL && p[1] == '?') | |
| 601 { | |
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602 // change "\?" to "?", make a copy first. |
| 7 | 603 if (*newp == NULL) |
| 604 { | |
| 605 *newp = vim_strsave(startp); | |
| 606 if (*newp != NULL) | |
| 607 p = *newp + (p - startp); | |
| 608 } | |
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609 if (dropped != NULL) |
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610 ++*dropped; |
| 7 | 611 if (*newp != NULL) |
| 1621 | 612 STRMOVE(p, p + 1); |
| 7 | 613 else |
| 614 ++p; | |
| 615 } | |
| 616 else | |
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617 ++p; // skip next character |
| 7 | 618 if (*p == 'v') |
| 619 mymagic = MAGIC_ALL; | |
| 620 else if (*p == 'V') | |
| 621 mymagic = MAGIC_NONE; | |
| 622 } | |
| 623 } | |
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624 if (magic_val != NULL) |
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625 *magic_val = mymagic; |
| 7 | 626 return p; |
| 627 } | |
| 628 | |
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629 /* |
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630 * Functions for getting characters from the regexp input. |
| 7 | 631 */ |
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632 static int prevchr_len; // byte length of previous char |
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633 static int at_start; // True when on the first character |
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634 static int prev_at_start; // True when on the second character |
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635 |
| 7 | 636 /* |
| 4444 | 637 * Start parsing at "str". |
| 638 */ | |
| 7 | 639 static void |
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640 initchr(char_u *str) |
| 7 | 641 { |
| 642 regparse = str; | |
| 643 prevchr_len = 0; | |
| 644 curchr = prevprevchr = prevchr = nextchr = -1; | |
| 645 at_start = TRUE; | |
| 646 prev_at_start = FALSE; | |
| 647 } | |
| 648 | |
| 4444 | 649 /* |
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650 * Save the current parse state, so that it can be restored and parsing |
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651 * starts in the same state again. |
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652 */ |
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653 static void |
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654 save_parse_state(parse_state_T *ps) |
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655 { |
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656 ps->regparse = regparse; |
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657 ps->prevchr_len = prevchr_len; |
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658 ps->curchr = curchr; |
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659 ps->prevchr = prevchr; |
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660 ps->prevprevchr = prevprevchr; |
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661 ps->nextchr = nextchr; |
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662 ps->at_start = at_start; |
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663 ps->prev_at_start = prev_at_start; |
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664 ps->regnpar = regnpar; |
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665 } |
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666 |
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667 /* |
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668 * Restore a previously saved parse state. |
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669 */ |
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670 static void |
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671 restore_parse_state(parse_state_T *ps) |
|
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672 { |
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673 regparse = ps->regparse; |
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674 prevchr_len = ps->prevchr_len; |
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675 curchr = ps->curchr; |
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676 prevchr = ps->prevchr; |
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677 prevprevchr = ps->prevprevchr; |
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678 nextchr = ps->nextchr; |
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679 at_start = ps->at_start; |
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680 prev_at_start = ps->prev_at_start; |
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681 regnpar = ps->regnpar; |
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682 } |
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683 |
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684 |
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685 /* |
| 4444 | 686 * Get the next character without advancing. |
| 687 */ | |
| 7 | 688 static int |
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689 peekchr(void) |
| 7 | 690 { |
| 167 | 691 static int after_slash = FALSE; |
| 692 | |
| 7 | 693 if (curchr == -1) |
| 694 { | |
| 695 switch (curchr = regparse[0]) | |
| 696 { | |
| 697 case '.': | |
| 698 case '[': | |
| 699 case '~': | |
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700 // magic when 'magic' is on |
| 7 | 701 if (reg_magic >= MAGIC_ON) |
| 702 curchr = Magic(curchr); | |
| 703 break; | |
| 704 case '(': | |
| 705 case ')': | |
| 706 case '{': | |
| 707 case '%': | |
| 708 case '+': | |
| 709 case '=': | |
| 710 case '?': | |
| 711 case '@': | |
| 712 case '!': | |
| 713 case '&': | |
| 714 case '|': | |
| 715 case '<': | |
| 716 case '>': | |
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717 case '#': // future ext. |
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718 case '"': // future ext. |
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719 case '\'': // future ext. |
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720 case ',': // future ext. |
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721 case '-': // future ext. |
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722 case ':': // future ext. |
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723 case ';': // future ext. |
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724 case '`': // future ext. |
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725 case '/': // Can't be used in / command |
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726 // magic only after "\v" |
| 7 | 727 if (reg_magic == MAGIC_ALL) |
| 728 curchr = Magic(curchr); | |
| 729 break; | |
| 730 case '*': | |
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731 // * is not magic as the very first character, eg "?*ptr", when |
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732 // after '^', eg "/^*ptr" and when after "\(", "\|", "\&". But |
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733 // "\(\*" is not magic, thus must be magic if "after_slash" |
| 167 | 734 if (reg_magic >= MAGIC_ON |
| 735 && !at_start | |
| 736 && !(prev_at_start && prevchr == Magic('^')) | |
| 737 && (after_slash | |
| 738 || (prevchr != Magic('(') | |
| 739 && prevchr != Magic('&') | |
| 740 && prevchr != Magic('|')))) | |
| 7 | 741 curchr = Magic('*'); |
| 742 break; | |
| 743 case '^': | |
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744 // '^' is only magic as the very first character and if it's after |
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745 // "\(", "\|", "\&' or "\n" |
| 7 | 746 if (reg_magic >= MAGIC_OFF |
| 747 && (at_start | |
| 748 || reg_magic == MAGIC_ALL | |
| 749 || prevchr == Magic('(') | |
| 750 || prevchr == Magic('|') | |
| 751 || prevchr == Magic('&') | |
| 752 || prevchr == Magic('n') | |
| 753 || (no_Magic(prevchr) == '(' | |
| 754 && prevprevchr == Magic('%')))) | |
| 755 { | |
| 756 curchr = Magic('^'); | |
| 757 at_start = TRUE; | |
| 758 prev_at_start = FALSE; | |
| 759 } | |
| 760 break; | |
| 761 case '$': | |
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762 // '$' is only magic as the very last char and if it's in front of |
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763 // either "\|", "\)", "\&", or "\n" |
| 7 | 764 if (reg_magic >= MAGIC_OFF) |
| 765 { | |
| 766 char_u *p = regparse + 1; | |
| 6041 | 767 int is_magic_all = (reg_magic == MAGIC_ALL); |
| 768 | |
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769 // ignore \c \C \m \M \v \V and \Z after '$' |
| 7 | 770 while (p[0] == '\\' && (p[1] == 'c' || p[1] == 'C' |
| 6041 | 771 || p[1] == 'm' || p[1] == 'M' |
| 772 || p[1] == 'v' || p[1] == 'V' || p[1] == 'Z')) | |
| 773 { | |
| 774 if (p[1] == 'v') | |
| 775 is_magic_all = TRUE; | |
| 776 else if (p[1] == 'm' || p[1] == 'M' || p[1] == 'V') | |
| 777 is_magic_all = FALSE; | |
| 7 | 778 p += 2; |
| 6041 | 779 } |
| 7 | 780 if (p[0] == NUL |
| 781 || (p[0] == '\\' | |
| 782 && (p[1] == '|' || p[1] == '&' || p[1] == ')' | |
| 783 || p[1] == 'n')) | |
| 6041 | 784 || (is_magic_all |
| 785 && (p[0] == '|' || p[0] == '&' || p[0] == ')')) | |
| 7 | 786 || reg_magic == MAGIC_ALL) |
| 787 curchr = Magic('$'); | |
| 788 } | |
| 789 break; | |
| 790 case '\\': | |
| 791 { | |
| 792 int c = regparse[1]; | |
| 793 | |
| 794 if (c == NUL) | |
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795 curchr = '\\'; // trailing '\' |
| 7 | 796 else if ( |
| 797 #ifdef EBCDIC | |
| 798 vim_strchr(META, c) | |
| 799 #else | |
| 800 c <= '~' && META_flags[c] | |
| 801 #endif | |
| 802 ) | |
| 803 { | |
| 804 /* | |
| 805 * META contains everything that may be magic sometimes, | |
| 806 * except ^ and $ ("\^" and "\$" are only magic after | |
| 6830 | 807 * "\V"). We now fetch the next character and toggle its |
| 7 | 808 * magicness. Therefore, \ is so meta-magic that it is |
| 809 * not in META. | |
| 810 */ | |
| 811 curchr = -1; | |
| 812 prev_at_start = at_start; | |
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813 at_start = FALSE; // be able to say "/\*ptr" |
| 7 | 814 ++regparse; |
| 167 | 815 ++after_slash; |
| 7 | 816 peekchr(); |
| 817 --regparse; | |
| 167 | 818 --after_slash; |
| 7 | 819 curchr = toggle_Magic(curchr); |
| 820 } | |
| 821 else if (vim_strchr(REGEXP_ABBR, c)) | |
| 822 { | |
| 823 /* | |
| 824 * Handle abbreviations, like "\t" for TAB -- webb | |
| 825 */ | |
| 826 curchr = backslash_trans(c); | |
| 827 } | |
| 828 else if (reg_magic == MAGIC_NONE && (c == '$' || c == '^')) | |
| 829 curchr = toggle_Magic(c); | |
| 830 else | |
| 831 { | |
| 832 /* | |
| 833 * Next character can never be (made) magic? | |
| 834 * Then backslashing it won't do anything. | |
| 835 */ | |
| 836 if (has_mbyte) | |
| 837 curchr = (*mb_ptr2char)(regparse + 1); | |
| 838 else | |
| 839 curchr = c; | |
| 840 } | |
| 841 break; | |
| 842 } | |
| 843 | |
| 844 default: | |
| 845 if (has_mbyte) | |
| 846 curchr = (*mb_ptr2char)(regparse); | |
| 847 } | |
| 848 } | |
| 849 | |
| 850 return curchr; | |
| 851 } | |
| 852 | |
| 853 /* | |
| 854 * Eat one lexed character. Do this in a way that we can undo it. | |
| 855 */ | |
| 856 static void | |
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857 skipchr(void) |
| 7 | 858 { |
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859 // peekchr() eats a backslash, do the same here |
| 7 | 860 if (*regparse == '\\') |
| 861 prevchr_len = 1; | |
| 862 else | |
| 863 prevchr_len = 0; | |
| 864 if (regparse[prevchr_len] != NUL) | |
| 865 { | |
| 714 | 866 if (enc_utf8) |
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867 // exclude composing chars that mb_ptr2len does include |
| 1449 | 868 prevchr_len += utf_ptr2len(regparse + prevchr_len); |
| 714 | 869 else if (has_mbyte) |
| 474 | 870 prevchr_len += (*mb_ptr2len)(regparse + prevchr_len); |
| 7 | 871 else |
| 872 ++prevchr_len; | |
| 873 } | |
| 874 regparse += prevchr_len; | |
| 875 prev_at_start = at_start; | |
| 876 at_start = FALSE; | |
| 877 prevprevchr = prevchr; | |
| 878 prevchr = curchr; | |
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879 curchr = nextchr; // use previously unget char, or -1 |
| 7 | 880 nextchr = -1; |
| 881 } | |
| 882 | |
| 883 /* | |
| 884 * Skip a character while keeping the value of prev_at_start for at_start. | |
| 885 * prevchr and prevprevchr are also kept. | |
| 886 */ | |
| 887 static void | |
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888 skipchr_keepstart(void) |
| 7 | 889 { |
| 890 int as = prev_at_start; | |
| 891 int pr = prevchr; | |
| 892 int prpr = prevprevchr; | |
| 893 | |
| 894 skipchr(); | |
| 895 at_start = as; | |
| 896 prevchr = pr; | |
| 897 prevprevchr = prpr; | |
| 898 } | |
| 899 | |
| 4444 | 900 /* |
| 901 * Get the next character from the pattern. We know about magic and such, so | |
| 902 * therefore we need a lexical analyzer. | |
| 903 */ | |
| 7 | 904 static int |
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905 getchr(void) |
| 7 | 906 { |
| 907 int chr = peekchr(); | |
| 908 | |
| 909 skipchr(); | |
| 910 return chr; | |
| 911 } | |
| 912 | |
| 913 /* | |
| 914 * put character back. Works only once! | |
| 915 */ | |
| 916 static void | |
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917 ungetchr(void) |
| 7 | 918 { |
| 919 nextchr = curchr; | |
| 920 curchr = prevchr; | |
| 921 prevchr = prevprevchr; | |
| 922 at_start = prev_at_start; | |
| 923 prev_at_start = FALSE; | |
| 924 | |
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925 // Backup regparse, so that it's at the same position as before the |
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926 // getchr(). |
| 7 | 927 regparse -= prevchr_len; |
| 928 } | |
| 929 | |
| 930 /* | |
| 29 | 931 * Get and return the value of the hex string at the current position. |
| 932 * Return -1 if there is no valid hex number. | |
| 933 * The position is updated: | |
| 24 | 934 * blahblah\%x20asdf |
| 856 | 935 * before-^ ^-after |
| 24 | 936 * The parameter controls the maximum number of input characters. This will be |
| 937 * 2 when reading a \%x20 sequence and 4 when reading a \%u20AC sequence. | |
| 938 */ | |
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939 static long |
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940 gethexchrs(int maxinputlen) |
| 24 | 941 { |
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942 long_u nr = 0; |
| 24 | 943 int c; |
| 944 int i; | |
| 945 | |
| 946 for (i = 0; i < maxinputlen; ++i) | |
| 947 { | |
| 948 c = regparse[0]; | |
| 949 if (!vim_isxdigit(c)) | |
| 950 break; | |
| 951 nr <<= 4; | |
| 952 nr |= hex2nr(c); | |
| 953 ++regparse; | |
| 954 } | |
| 955 | |
| 956 if (i == 0) | |
| 957 return -1; | |
|
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958 return (long)nr; |
| 24 | 959 } |
| 960 | |
| 961 /* | |
|
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962 * Get and return the value of the decimal string immediately after the |
| 24 | 963 * current position. Return -1 for invalid. Consumes all digits. |
| 964 */ | |
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965 static long |
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966 getdecchrs(void) |
| 24 | 967 { |
|
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968 long_u nr = 0; |
| 24 | 969 int c; |
| 970 int i; | |
| 971 | |
| 972 for (i = 0; ; ++i) | |
| 973 { | |
| 974 c = regparse[0]; | |
| 975 if (c < '0' || c > '9') | |
| 976 break; | |
| 977 nr *= 10; | |
| 978 nr += c - '0'; | |
| 979 ++regparse; | |
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980 curchr = -1; // no longer valid |
| 24 | 981 } |
| 982 | |
| 983 if (i == 0) | |
| 984 return -1; | |
|
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985 return (long)nr; |
| 24 | 986 } |
| 987 | |
| 988 /* | |
| 989 * get and return the value of the octal string immediately after the current | |
| 990 * position. Return -1 for invalid, or 0-255 for valid. Smart enough to handle | |
| 991 * numbers > 377 correctly (for example, 400 is treated as 40) and doesn't | |
| 992 * treat 8 or 9 as recognised characters. Position is updated: | |
| 993 * blahblah\%o210asdf | |
| 856 | 994 * before-^ ^-after |
| 24 | 995 */ |
|
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996 static long |
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997 getoctchrs(void) |
| 24 | 998 { |
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999 long_u nr = 0; |
| 24 | 1000 int c; |
| 1001 int i; | |
| 1002 | |
| 1003 for (i = 0; i < 3 && nr < 040; ++i) | |
| 1004 { | |
| 1005 c = regparse[0]; | |
| 1006 if (c < '0' || c > '7') | |
| 1007 break; | |
| 1008 nr <<= 3; | |
| 1009 nr |= hex2nr(c); | |
| 1010 ++regparse; | |
| 1011 } | |
| 1012 | |
| 1013 if (i == 0) | |
| 1014 return -1; | |
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1015 return (long)nr; |
| 24 | 1016 } |
| 1017 | |
| 1018 /* | |
| 7 | 1019 * read_limits - Read two integers to be taken as a minimum and maximum. |
| 1020 * If the first character is '-', then the range is reversed. | |
| 1021 * Should end with 'end'. If minval is missing, zero is default, if maxval is | |
| 1022 * missing, a very big number is the default. | |
| 1023 */ | |
| 1024 static int | |
|
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1025 read_limits(long *minval, long *maxval) |
| 7 | 1026 { |
| 1027 int reverse = FALSE; | |
| 1028 char_u *first_char; | |
| 1029 long tmp; | |
| 1030 | |
| 1031 if (*regparse == '-') | |
| 1032 { | |
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1033 // Starts with '-', so reverse the range later |
| 7 | 1034 regparse++; |
| 1035 reverse = TRUE; | |
| 1036 } | |
| 1037 first_char = regparse; | |
| 1038 *minval = getdigits(®parse); | |
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1039 if (*regparse == ',') // There is a comma |
| 7 | 1040 { |
| 1041 if (vim_isdigit(*++regparse)) | |
| 1042 *maxval = getdigits(®parse); | |
| 1043 else | |
| 1044 *maxval = MAX_LIMIT; | |
| 1045 } | |
| 1046 else if (VIM_ISDIGIT(*first_char)) | |
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1047 *maxval = *minval; // It was \{n} or \{-n} |
| 7 | 1048 else |
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1049 *maxval = MAX_LIMIT; // It was \{} or \{-} |
| 7 | 1050 if (*regparse == '\\') |
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1051 regparse++; // Allow either \{...} or \{...\} |
| 167 | 1052 if (*regparse != '}') |
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1053 EMSG2_RET_FAIL(_("E554: Syntax error in %s{...}"), |
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1054 reg_magic == MAGIC_ALL); |
| 7 | 1055 |
| 1056 /* | |
| 1057 * Reverse the range if there was a '-', or make sure it is in the right | |
| 1058 * order otherwise. | |
| 1059 */ | |
| 1060 if ((!reverse && *minval > *maxval) || (reverse && *minval < *maxval)) | |
| 1061 { | |
| 1062 tmp = *minval; | |
| 1063 *minval = *maxval; | |
| 1064 *maxval = tmp; | |
| 1065 } | |
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1066 skipchr(); // let's be friends with the lexer again |
| 7 | 1067 return OK; |
| 1068 } | |
| 1069 | |
| 1070 /* | |
| 1071 * vim_regexec and friends | |
| 1072 */ | |
| 1073 | |
| 1074 /* | |
| 1075 * Global work variables for vim_regexec(). | |
| 1076 */ | |
| 1077 | |
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1078 static void cleanup_subexpr(void); |
| 7 | 1079 #ifdef FEAT_SYN_HL |
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1080 static void cleanup_zsubexpr(void); |
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1081 #endif |
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1082 static void reg_nextline(void); |
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1083 static int match_with_backref(linenr_T start_lnum, colnr_T start_col, linenr_T end_lnum, colnr_T end_col, int *bytelen); |
| 7 | 1084 |
| 1085 /* | |
| 1086 * Sometimes need to save a copy of a line. Since alloc()/free() is very | |
| 1087 * slow, we keep one allocated piece of memory and only re-allocate it when | |
| 4444 | 1088 * it's too small. It's freed in bt_regexec_both() when finished. |
| 7 | 1089 */ |
| 1468 | 1090 static char_u *reg_tofree = NULL; |
| 7 | 1091 static unsigned reg_tofreelen; |
| 1092 | |
| 1093 /* | |
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1094 * Structure used to store the execution state of the regex engine. |
| 1209 | 1095 * Which ones are set depends on whether a single-line or multi-line match is |
| 7 | 1096 * done: |
| 1097 * single-line multi-line | |
| 1098 * reg_match ®match_T NULL | |
| 1099 * reg_mmatch NULL ®mmatch_T | |
| 1100 * reg_startp reg_match->startp <invalid> | |
| 1101 * reg_endp reg_match->endp <invalid> | |
| 1102 * reg_startpos <invalid> reg_mmatch->startpos | |
| 1103 * reg_endpos <invalid> reg_mmatch->endpos | |
| 1104 * reg_win NULL window in which to search | |
| 4061 | 1105 * reg_buf curbuf buffer in which to search |
| 7 | 1106 * reg_firstlnum <invalid> first line in which to search |
| 1107 * reg_maxline 0 last line nr | |
| 1108 * reg_line_lbr FALSE or TRUE FALSE | |
| 1109 */ | |
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1110 typedef struct { |
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1111 regmatch_T *reg_match; |
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1112 regmmatch_T *reg_mmatch; |
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1113 char_u **reg_startp; |
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1114 char_u **reg_endp; |
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1115 lpos_T *reg_startpos; |
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1116 lpos_T *reg_endpos; |
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1117 win_T *reg_win; |
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1118 buf_T *reg_buf; |
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1119 linenr_T reg_firstlnum; |
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1120 linenr_T reg_maxline; |
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1121 int reg_line_lbr; // "\n" in string is line break |
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1122 |
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1123 // The current match-position is stord in these variables: |
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1124 linenr_T lnum; // line number, relative to first line |
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1125 char_u *line; // start of current line |
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1126 char_u *input; // current input, points into "line" |
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1127 |
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1128 int need_clear_subexpr; // subexpressions still need to be cleared |
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1129 #ifdef FEAT_SYN_HL |
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1130 int need_clear_zsubexpr; // extmatch subexpressions still need to be |
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1131 // cleared |
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1132 #endif |
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1133 |
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1134 // Internal copy of 'ignorecase'. It is set at each call to vim_regexec(). |
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1135 // Normally it gets the value of "rm_ic" or "rmm_ic", but when the pattern |
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1136 // contains '\c' or '\C' the value is overruled. |
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1137 int reg_ic; |
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1138 |
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1139 // Similar to "reg_ic", but only for 'combining' characters. Set with \Z |
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1140 // flag in the regexp. Defaults to false, always. |
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1141 int reg_icombine; |
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1142 |
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1143 // Copy of "rmm_maxcol": maximum column to search for a match. Zero when |
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1144 // there is no maximum. |
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1145 colnr_T reg_maxcol; |
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1146 |
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1147 // State for the NFA engine regexec. |
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1148 int nfa_has_zend; // NFA regexp \ze operator encountered. |
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1149 int nfa_has_backref; // NFA regexp \1 .. \9 encountered. |
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1150 int nfa_nsubexpr; // Number of sub expressions actually being used |
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1151 // during execution. 1 if only the whole match |
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1152 // (subexpr 0) is used. |
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1153 // listid is global, so that it increases on recursive calls to |
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1154 // nfa_regmatch(), which means we don't have to clear the lastlist field of |
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|
1155 // all the states. |
|
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|
1156 int nfa_listid; |
|
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|
1157 int nfa_alt_listid; |
|
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|
1158 |
|
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|
1159 #ifdef FEAT_SYN_HL |
|
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|
1160 int nfa_has_zsubexpr; // NFA regexp has \z( ), set zsubexpr. |
|
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|
1161 #endif |
|
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|
1162 } regexec_T; |
|
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|
1163 |
|
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|
1164 static regexec_T rex; |
|
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|
1165 static int rex_in_use = FALSE; |
|
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|
1166 |
| 7 | 1167 /* |
|
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|
1168 * Return TRUE if character 'c' is included in 'iskeyword' option for |
|
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|
1169 * "reg_buf" buffer. |
|
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1170 */ |
|
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|
1171 static int |
|
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|
1172 reg_iswordc(int c) |
|
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|
1173 { |
|
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|
1174 return vim_iswordc_buf(c, rex.reg_buf); |
|
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|
1175 } |
|
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|
1176 |
|
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|
1177 /* |
| 7 | 1178 * Get pointer to the line "lnum", which is relative to "reg_firstlnum". |
| 1179 */ | |
| 1180 static char_u * | |
|
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|
1181 reg_getline(linenr_T lnum) |
| 7 | 1182 { |
|
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1183 // when looking behind for a match/no-match lnum is negative. But we |
|
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|
1184 // can't go before line 1 |
|
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|
1185 if (rex.reg_firstlnum + lnum < 1) |
| 7 | 1186 return NULL; |
|
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|
1187 if (lnum > rex.reg_maxline) |
|
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|
1188 // Must have matched the "\n" in the last line. |
| 481 | 1189 return (char_u *)""; |
|
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|
1190 return ml_get_buf(rex.reg_buf, rex.reg_firstlnum + lnum, FALSE); |
| 7 | 1191 } |
| 1192 | |
| 1193 #ifdef FEAT_SYN_HL | |
|
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|
1194 static char_u *reg_startzp[NSUBEXP]; // Workspace to mark beginning |
|
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|
1195 static char_u *reg_endzp[NSUBEXP]; // and end of \z(...\) matches |
|
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|
1196 static lpos_T reg_startzpos[NSUBEXP]; // idem, beginning pos |
|
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|
1197 static lpos_T reg_endzpos[NSUBEXP]; // idem, end pos |
| 7 | 1198 #endif |
| 1199 | |
|
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|
1200 // TRUE if using multi-line regexp. |
|
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diff
changeset
|
1201 #define REG_MULTI (rex.reg_match == NULL) |
| 4444 | 1202 |
| 7 | 1203 #ifdef FEAT_SYN_HL |
| 1204 /* | |
| 1205 * Create a new extmatch and mark it as referenced once. | |
| 1206 */ | |
| 1207 static reg_extmatch_T * | |
|
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changeset
|
1208 make_extmatch(void) |
| 7 | 1209 { |
| 1210 reg_extmatch_T *em; | |
| 1211 | |
|
16825
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changeset
|
1212 em = ALLOC_CLEAR_ONE(reg_extmatch_T); |
| 7 | 1213 if (em != NULL) |
| 1214 em->refcnt = 1; | |
| 1215 return em; | |
| 1216 } | |
| 1217 | |
| 1218 /* | |
| 1219 * Add a reference to an extmatch. | |
| 1220 */ | |
| 1221 reg_extmatch_T * | |
|
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diff
changeset
|
1222 ref_extmatch(reg_extmatch_T *em) |
| 7 | 1223 { |
| 1224 if (em != NULL) | |
| 1225 em->refcnt++; | |
| 1226 return em; | |
| 1227 } | |
| 1228 | |
| 1229 /* | |
| 1230 * Remove a reference to an extmatch. If there are no references left, free | |
| 1231 * the info. | |
| 1232 */ | |
| 1233 void | |
|
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diff
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|
1234 unref_extmatch(reg_extmatch_T *em) |
| 7 | 1235 { |
| 1236 int i; | |
| 1237 | |
| 1238 if (em != NULL && --em->refcnt <= 0) | |
| 1239 { | |
| 1240 for (i = 0; i < NSUBEXP; ++i) | |
| 1241 vim_free(em->matches[i]); | |
| 1242 vim_free(em); | |
| 1243 } | |
| 1244 } | |
| 1245 #endif | |
| 1246 | |
| 1247 /* | |
| 1248 * Get class of previous character. | |
| 1249 */ | |
| 1250 static int | |
|
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diff
changeset
|
1251 reg_prev_class(void) |
| 7 | 1252 { |
|
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|
1253 if (rex.input > rex.line) |
|
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|
1254 return mb_get_class_buf(rex.input - 1 |
|
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diff
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|
1255 - (*mb_head_off)(rex.line, rex.input - 1), rex.reg_buf); |
| 7 | 1256 return -1; |
| 1257 } | |
| 5735 | 1258 |
|
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|
1259 /* |
|
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|
1260 * Return TRUE if the current rex.input position matches the Visual area. |
|
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|
1261 */ |
|
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|
1262 static int |
|
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|
1263 reg_match_visual(void) |
|
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|
1264 { |
|
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|
1265 pos_T top, bot; |
|
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|
1266 linenr_T lnum; |
|
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|
1267 colnr_T col; |
|
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diff
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|
1268 win_T *wp = rex.reg_win == NULL ? curwin : rex.reg_win; |
|
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|
1269 int mode; |
|
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|
1270 colnr_T start, end; |
|
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|
1271 colnr_T start2, end2; |
|
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|
1272 colnr_T cols; |
|
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|
1273 colnr_T curswant; |
|
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|
1274 |
|
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|
1275 // Check if the buffer is the current buffer. |
|
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|
1276 if (rex.reg_buf != curbuf || VIsual.lnum == 0) |
|
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|
1277 return FALSE; |
|
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|
1278 |
|
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|
1279 if (VIsual_active) |
|
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|
1280 { |
|
11121
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|
1281 if (LT_POS(VIsual, wp->w_cursor)) |
|
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|
1282 { |
|
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|
1283 top = VIsual; |
|
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|
1284 bot = wp->w_cursor; |
|
749e2b2755d5
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|
1285 } |
|
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|
1286 else |
|
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|
1287 { |
|
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|
1288 top = wp->w_cursor; |
|
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|
1289 bot = VIsual; |
|
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|
1290 } |
|
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|
1291 mode = VIsual_mode; |
|
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|
1292 curswant = wp->w_curswant; |
|
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|
1293 } |
|
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|
1294 else |
|
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|
1295 { |
|
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|
1296 if (LT_POS(curbuf->b_visual.vi_start, curbuf->b_visual.vi_end)) |
|
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|
1297 { |
|
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|
1298 top = curbuf->b_visual.vi_start; |
|
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|
1299 bot = curbuf->b_visual.vi_end; |
|
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|
1300 } |
|
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|
1301 else |
|
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|
1302 { |
|
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1303 top = curbuf->b_visual.vi_end; |
|
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1304 bot = curbuf->b_visual.vi_start; |
|
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1305 } |
|
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|
1306 mode = curbuf->b_visual.vi_mode; |
|
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|
1307 curswant = curbuf->b_visual.vi_curswant; |
|
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|
1308 } |
|
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|
1309 lnum = rex.lnum + rex.reg_firstlnum; |
|
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|
1310 if (lnum < top.lnum || lnum > bot.lnum) |
|
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|
1311 return FALSE; |
|
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|
1312 |
|
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diff
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|
1313 if (mode == 'v') |
|
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|
1314 { |
|
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|
1315 col = (colnr_T)(rex.input - rex.line); |
|
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|
1316 if ((lnum == top.lnum && col < top.col) |
|
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|
1317 || (lnum == bot.lnum && col >= bot.col + (*p_sel != 'e'))) |
|
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|
1318 return FALSE; |
|
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|
1319 } |
|
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|
1320 else if (mode == Ctrl_V) |
|
749e2b2755d5
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|
1321 { |
|
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|
1322 getvvcol(wp, &top, &start, NULL, &end); |
|
749e2b2755d5
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|
1323 getvvcol(wp, &bot, &start2, NULL, &end2); |
|
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|
1324 if (start2 < start) |
|
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|
1325 start = start2; |
|
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|
1326 if (end2 > end) |
|
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|
1327 end = end2; |
|
24745
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diff
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|
1328 if (top.col == MAXCOL || bot.col == MAXCOL || curswant == MAXCOL) |
|
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|
1329 end = MAXCOL; |
|
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|
1330 cols = win_linetabsize(wp, rex.line, (colnr_T)(rex.input - rex.line)); |
|
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|
1331 if (cols < start || cols > end - (*p_sel == 'e')) |
|
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|
1332 return FALSE; |
|
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|
1333 } |
|
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|
1334 return TRUE; |
|
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|
1335 } |
|
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|
1336 |
| 7 | 1337 /* |
| 1338 * Check the regexp program for its magic number. | |
| 1339 * Return TRUE if it's wrong. | |
| 1340 */ | |
| 1341 static int | |
|
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|
1342 prog_magic_wrong(void) |
| 7 | 1343 { |
| 4444 | 1344 regprog_T *prog; |
| 1345 | |
|
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|
1346 prog = REG_MULTI ? rex.reg_mmatch->regprog : rex.reg_match->regprog; |
| 4444 | 1347 if (prog->engine == &nfa_regengine) |
|
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|
1348 // For NFA matcher we don't check the magic |
| 4444 | 1349 return FALSE; |
| 1350 | |
| 1351 if (UCHARAT(((bt_regprog_T *)prog)->program) != REGMAGIC) | |
| 7 | 1352 { |
|
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24768
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|
1353 emsg(_(e_corrupted_regexp_program)); |
| 7 | 1354 return TRUE; |
| 1355 } | |
| 1356 return FALSE; | |
| 1357 } | |
| 1358 | |
| 1359 /* | |
| 1360 * Cleanup the subexpressions, if this wasn't done yet. | |
| 1361 * This construction is used to clear the subexpressions only when they are | |
| 1362 * used (to increase speed). | |
| 1363 */ | |
| 1364 static void | |
|
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|
1365 cleanup_subexpr(void) |
| 7 | 1366 { |
|
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|
1367 if (rex.need_clear_subexpr) |
| 7 | 1368 { |
| 1369 if (REG_MULTI) | |
| 1370 { | |
|
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|
1371 // Use 0xff to set lnum to -1 |
|
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diff
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|
1372 vim_memset(rex.reg_startpos, 0xff, sizeof(lpos_T) * NSUBEXP); |
|
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Christian Brabandt <cb@256bit.org>
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|
1373 vim_memset(rex.reg_endpos, 0xff, sizeof(lpos_T) * NSUBEXP); |
| 7 | 1374 } |
| 1375 else | |
| 1376 { | |
|
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diff
changeset
|
1377 vim_memset(rex.reg_startp, 0, sizeof(char_u *) * NSUBEXP); |
|
d76ccdacb41e
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|
1378 vim_memset(rex.reg_endp, 0, sizeof(char_u *) * NSUBEXP); |
| 7 | 1379 } |
|
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|
1380 rex.need_clear_subexpr = FALSE; |
| 7 | 1381 } |
| 1382 } | |
| 1383 | |
| 1384 #ifdef FEAT_SYN_HL | |
| 1385 static void | |
|
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diff
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|
1386 cleanup_zsubexpr(void) |
| 7 | 1387 { |
|
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|
1388 if (rex.need_clear_zsubexpr) |
| 7 | 1389 { |
| 1390 if (REG_MULTI) | |
| 1391 { | |
|
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|
1392 // Use 0xff to set lnum to -1 |
| 7 | 1393 vim_memset(reg_startzpos, 0xff, sizeof(lpos_T) * NSUBEXP); |
| 1394 vim_memset(reg_endzpos, 0xff, sizeof(lpos_T) * NSUBEXP); | |
| 1395 } | |
| 1396 else | |
| 1397 { | |
| 1398 vim_memset(reg_startzp, 0, sizeof(char_u *) * NSUBEXP); | |
| 1399 vim_memset(reg_endzp, 0, sizeof(char_u *) * NSUBEXP); | |
| 1400 } | |
|
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|
1401 rex.need_clear_zsubexpr = FALSE; |
| 7 | 1402 } |
| 1403 } | |
| 1404 #endif | |
| 1405 | |
| 1406 /* | |
|
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|
1407 * Advance rex.lnum, rex.line and rex.input to the next line. |
| 7 | 1408 */ |
| 1409 static void | |
|
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|
1410 reg_nextline(void) |
| 7 | 1411 { |
|
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|
1412 rex.line = reg_getline(++rex.lnum); |
|
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|
1413 rex.input = rex.line; |
| 7 | 1414 fast_breakcheck(); |
| 1415 } | |
| 1416 | |
| 1417 /* | |
|
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|
1418 * Check whether a backreference matches. |
|
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|
1419 * Returns RA_FAIL, RA_NOMATCH or RA_MATCH. |
| 5504 | 1420 * If "bytelen" is not NULL, it is set to the byte length of the match in the |
| 1421 * last line. | |
|
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|
1422 */ |
|
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|
1423 static int |
|
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diff
changeset
|
1424 match_with_backref( |
|
c079097365f3
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diff
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|
1425 linenr_T start_lnum, |
|
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|
1426 colnr_T start_col, |
|
c079097365f3
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diff
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|
1427 linenr_T end_lnum, |
|
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diff
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|
1428 colnr_T end_col, |
|
c079097365f3
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|
1429 int *bytelen) |
|
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|
1430 { |
|
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|
1431 linenr_T clnum = start_lnum; |
|
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|
1432 colnr_T ccol = start_col; |
|
4c42efb4c098
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|
1433 int len; |
|
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|
1434 char_u *p; |
|
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|
1435 |
|
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|
1436 if (bytelen != NULL) |
|
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|
1437 *bytelen = 0; |
|
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|
1438 for (;;) |
|
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|
1439 { |
|
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|
1440 // Since getting one line may invalidate the other, need to make copy. |
|
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|
1441 // Slow! |
|
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|
1442 if (rex.line != reg_tofree) |
|
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|
1443 { |
|
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|
1444 len = (int)STRLEN(rex.line); |
|
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|
1445 if (reg_tofree == NULL || len >= (int)reg_tofreelen) |
|
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|
1446 { |
|
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|
1447 len += 50; // get some extra |
|
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|
1448 vim_free(reg_tofree); |
|
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|
1449 reg_tofree = alloc(len); |
|
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|
1450 if (reg_tofree == NULL) |
|
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|
1451 return RA_FAIL; // out of memory! |
|
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|
1452 reg_tofreelen = len; |
|
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|
1453 } |
|
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|
1454 STRCPY(reg_tofree, rex.line); |
|
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|
1455 rex.input = reg_tofree + (rex.input - rex.line); |
|
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|
1456 rex.line = reg_tofree; |
|
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|
1457 } |
|
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|
1458 |
|
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|
1459 // Get the line to compare with. |
|
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|
1460 p = reg_getline(clnum); |
|
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|
1461 if (clnum == end_lnum) |
|
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changeset
|
1462 len = end_col - ccol; |
|
4c42efb4c098
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|
1463 else |
|
4c42efb4c098
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Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
1464 len = (int)STRLEN(p + ccol); |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
1465 |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
1466 if (cstrncmp(p + ccol, rex.input, &len) != 0) |
|
18812
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
1467 return RA_NOMATCH; // doesn't match |
|
4891
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
1468 if (bytelen != NULL) |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
1469 *bytelen += len; |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
1470 if (clnum == end_lnum) |
|
18812
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patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
1471 break; // match and at end! |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
1472 if (rex.lnum >= rex.reg_maxline) |
|
18812
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patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
1473 return RA_NOMATCH; // text too short |
|
4891
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
1474 |
|
18812
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
1475 // Advance to next line. |
|
4891
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
1476 reg_nextline(); |
| 5504 | 1477 if (bytelen != NULL) |
| 1478 *bytelen = 0; | |
|
4891
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
1479 ++clnum; |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
1480 ccol = 0; |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
1481 if (got_int) |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
1482 return RA_FAIL; |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
1483 } |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
1484 |
|
18812
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patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
1485 // found a match! Note that rex.line may now point to a copy of the line, |
|
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
1486 // that should not matter. |
|
4891
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
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diff
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|
1487 return RA_MATCH; |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
1488 } |
| 7 | 1489 |
| 6203 | 1490 /* |
| 1491 * Used in a place where no * or \+ can follow. | |
| 1492 */ | |
| 1493 static int | |
|
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c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
1494 re_mult_next(char *what) |
| 6203 | 1495 { |
| 1496 if (re_multi_type(peekchr()) == MULTI_MULT) | |
|
15480
bd12ace1bab2
patch 8.1.0748: using sprintf() instead of semsg()
Bram Moolenaar <Bram@vim.org>
parents:
15470
diff
changeset
|
1497 { |
|
bd12ace1bab2
patch 8.1.0748: using sprintf() instead of semsg()
Bram Moolenaar <Bram@vim.org>
parents:
15470
diff
changeset
|
1498 semsg(_("E888: (NFA regexp) cannot repeat %s"), what); |
|
bd12ace1bab2
patch 8.1.0748: using sprintf() instead of semsg()
Bram Moolenaar <Bram@vim.org>
parents:
15470
diff
changeset
|
1499 rc_did_emsg = TRUE; |
|
bd12ace1bab2
patch 8.1.0748: using sprintf() instead of semsg()
Bram Moolenaar <Bram@vim.org>
parents:
15470
diff
changeset
|
1500 return FAIL; |
|
bd12ace1bab2
patch 8.1.0748: using sprintf() instead of semsg()
Bram Moolenaar <Bram@vim.org>
parents:
15470
diff
changeset
|
1501 } |
| 6203 | 1502 return OK; |
| 1503 } | |
| 1504 | |
| 7 | 1505 typedef struct |
| 1506 { | |
| 1507 int a, b, c; | |
| 1508 } decomp_T; | |
| 1509 | |
| 1510 | |
|
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patch 8.1.2394: using old C style comments
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parents:
18576
diff
changeset
|
1511 // 0xfb20 - 0xfb4f |
| 297 | 1512 static decomp_T decomp_table[0xfb4f-0xfb20+1] = |
| 7 | 1513 { |
|
18812
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patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
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diff
changeset
|
1514 {0x5e2,0,0}, // 0xfb20 alt ayin |
|
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
1515 {0x5d0,0,0}, // 0xfb21 alt alef |
|
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
1516 {0x5d3,0,0}, // 0xfb22 alt dalet |
|
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
1517 {0x5d4,0,0}, // 0xfb23 alt he |
|
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
1518 {0x5db,0,0}, // 0xfb24 alt kaf |
|
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
1519 {0x5dc,0,0}, // 0xfb25 alt lamed |
|
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
1520 {0x5dd,0,0}, // 0xfb26 alt mem-sofit |
|
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
1521 {0x5e8,0,0}, // 0xfb27 alt resh |
|
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
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diff
changeset
|
1522 {0x5ea,0,0}, // 0xfb28 alt tav |
|
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
1523 {'+', 0, 0}, // 0xfb29 alt plus |
|
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
1524 {0x5e9, 0x5c1, 0}, // 0xfb2a shin+shin-dot |
|
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
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diff
changeset
|
1525 {0x5e9, 0x5c2, 0}, // 0xfb2b shin+sin-dot |
|
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
1526 {0x5e9, 0x5c1, 0x5bc}, // 0xfb2c shin+shin-dot+dagesh |
|
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
1527 {0x5e9, 0x5c2, 0x5bc}, // 0xfb2d shin+sin-dot+dagesh |
|
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
1528 {0x5d0, 0x5b7, 0}, // 0xfb2e alef+patah |
|
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
1529 {0x5d0, 0x5b8, 0}, // 0xfb2f alef+qamats |
|
d34ec6fe207d
patch 8.1.2394: using old C style comments
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parents:
18576
diff
changeset
|
1530 {0x5d0, 0x5b4, 0}, // 0xfb30 alef+hiriq |
|
d34ec6fe207d
patch 8.1.2394: using old C style comments
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parents:
18576
diff
changeset
|
1531 {0x5d1, 0x5bc, 0}, // 0xfb31 bet+dagesh |
|
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
1532 {0x5d2, 0x5bc, 0}, // 0xfb32 gimel+dagesh |
|
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
1533 {0x5d3, 0x5bc, 0}, // 0xfb33 dalet+dagesh |
|
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
1534 {0x5d4, 0x5bc, 0}, // 0xfb34 he+dagesh |
|
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
1535 {0x5d5, 0x5bc, 0}, // 0xfb35 vav+dagesh |
|
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
1536 {0x5d6, 0x5bc, 0}, // 0xfb36 zayin+dagesh |
|
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
1537 {0xfb37, 0, 0}, // 0xfb37 -- UNUSED |
|
d34ec6fe207d
patch 8.1.2394: using old C style comments
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parents:
18576
diff
changeset
|
1538 {0x5d8, 0x5bc, 0}, // 0xfb38 tet+dagesh |
|
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
1539 {0x5d9, 0x5bc, 0}, // 0xfb39 yud+dagesh |
|
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
1540 {0x5da, 0x5bc, 0}, // 0xfb3a kaf sofit+dagesh |
|
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
1541 {0x5db, 0x5bc, 0}, // 0xfb3b kaf+dagesh |
|
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
1542 {0x5dc, 0x5bc, 0}, // 0xfb3c lamed+dagesh |
|
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
1543 {0xfb3d, 0, 0}, // 0xfb3d -- UNUSED |
|
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
1544 {0x5de, 0x5bc, 0}, // 0xfb3e mem+dagesh |
|
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
1545 {0xfb3f, 0, 0}, // 0xfb3f -- UNUSED |
|
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
1546 {0x5e0, 0x5bc, 0}, // 0xfb40 nun+dagesh |
|
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
1547 {0x5e1, 0x5bc, 0}, // 0xfb41 samech+dagesh |
|
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
1548 {0xfb42, 0, 0}, // 0xfb42 -- UNUSED |
|
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
1549 {0x5e3, 0x5bc, 0}, // 0xfb43 pe sofit+dagesh |
|
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
1550 {0x5e4, 0x5bc,0}, // 0xfb44 pe+dagesh |
|
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
1551 {0xfb45, 0, 0}, // 0xfb45 -- UNUSED |
|
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
1552 {0x5e6, 0x5bc, 0}, // 0xfb46 tsadi+dagesh |
|
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
1553 {0x5e7, 0x5bc, 0}, // 0xfb47 qof+dagesh |
|
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
1554 {0x5e8, 0x5bc, 0}, // 0xfb48 resh+dagesh |
|
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
1555 {0x5e9, 0x5bc, 0}, // 0xfb49 shin+dagesh |
|
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
1556 {0x5ea, 0x5bc, 0}, // 0xfb4a tav+dagesh |
|
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
1557 {0x5d5, 0x5b9, 0}, // 0xfb4b vav+holam |
|
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
1558 {0x5d1, 0x5bf, 0}, // 0xfb4c bet+rafe |
|
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
1559 {0x5db, 0x5bf, 0}, // 0xfb4d kaf+rafe |
|
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
1560 {0x5e4, 0x5bf, 0}, // 0xfb4e pe+rafe |
|
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
1561 {0x5d0, 0x5dc, 0} // 0xfb4f alef-lamed |
| 7 | 1562 }; |
| 1563 | |
| 1564 static void | |
|
7833
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
1565 mb_decompose(int c, int *c1, int *c2, int *c3) |
| 7 | 1566 { |
| 1567 decomp_T d; | |
| 1568 | |
|
4505
d037b9cbdaaa
updated for version 7.3.1000
Bram Moolenaar <bram@vim.org>
parents:
4466
diff
changeset
|
1569 if (c >= 0xfb20 && c <= 0xfb4f) |
| 7 | 1570 { |
| 1571 d = decomp_table[c - 0xfb20]; | |
| 1572 *c1 = d.a; | |
| 1573 *c2 = d.b; | |
| 1574 *c3 = d.c; | |
| 1575 } | |
| 1576 else | |
| 1577 { | |
| 1578 *c1 = c; | |
| 1579 *c2 = *c3 = 0; | |
| 1580 } | |
| 1581 } | |
| 1582 | |
| 1583 /* | |
|
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Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
1584 * Compare two strings, ignore case if rex.reg_ic set. |
| 7 | 1585 * Return 0 if strings match, non-zero otherwise. |
| 1586 * Correct the length "*n" when composing characters are ignored. | |
| 1587 */ | |
| 1588 static int | |
|
7833
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
1589 cstrncmp(char_u *s1, char_u *s2, int *n) |
| 7 | 1590 { |
| 1591 int result; | |
| 1592 | |
|
10245
d76ccdacb41e
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Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
1593 if (!rex.reg_ic) |
| 7 | 1594 result = STRNCMP(s1, s2, *n); |
| 1595 else | |
| 1596 result = MB_STRNICMP(s1, s2, *n); | |
| 1597 | |
|
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patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
1598 // if it failed and it's utf8 and we want to combineignore: |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
1599 if (result != 0 && enc_utf8 && rex.reg_icombine) |
| 7 | 1600 { |
| 1601 char_u *str1, *str2; | |
| 1602 int c1, c2, c11, c12; | |
| 1603 int junk; | |
| 1604 | |
|
18812
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patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
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diff
changeset
|
1605 // we have to handle the strcmp ourselves, since it is necessary to |
|
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
1606 // deal with the composing characters by ignoring them: |
| 7 | 1607 str1 = s1; |
| 1608 str2 = s2; | |
| 1609 c1 = c2 = 0; | |
| 507 | 1610 while ((int)(str1 - s1) < *n) |
| 7 | 1611 { |
| 1612 c1 = mb_ptr2char_adv(&str1); | |
| 1613 c2 = mb_ptr2char_adv(&str2); | |
| 1614 | |
|
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1615 // Decompose the character if necessary, into 'base' characters. |
|
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|
1616 // Currently hard-coded for Hebrew, Arabic to be done... |
|
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|
1617 if (c1 != c2 && (!rex.reg_ic || utf_fold(c1) != utf_fold(c2))) |
| 7 | 1618 { |
|
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|
1619 // decomposition necessary? |
| 7 | 1620 mb_decompose(c1, &c11, &junk, &junk); |
| 1621 mb_decompose(c2, &c12, &junk, &junk); | |
| 1622 c1 = c11; | |
| 1623 c2 = c12; | |
|
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diff
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|
1624 if (c11 != c12 |
|
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|
1625 && (!rex.reg_ic || utf_fold(c11) != utf_fold(c12))) |
| 7 | 1626 break; |
| 1627 } | |
| 1628 } | |
| 1629 result = c2 - c1; | |
| 1630 if (result == 0) | |
| 1631 *n = (int)(str2 - s2); | |
| 1632 } | |
| 1633 | |
| 1634 return result; | |
| 1635 } | |
| 1636 | |
| 1637 /* | |
| 1638 * cstrchr: This function is used a lot for simple searches, keep it fast! | |
| 1639 */ | |
| 1640 static char_u * | |
|
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|
1641 cstrchr(char_u *s, int c) |
| 7 | 1642 { |
| 1643 char_u *p; | |
| 1644 int cc; | |
| 1645 | |
|
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|
1646 if (!rex.reg_ic || (!enc_utf8 && mb_char2len(c) > 1)) |
| 7 | 1647 return vim_strchr(s, c); |
| 1648 | |
|
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1649 // tolower() and toupper() can be slow, comparing twice should be a lot |
|
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|
1650 // faster (esp. when using MS Visual C++!). |
|
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|
1651 // For UTF-8 need to use folded case. |
| 7 | 1652 if (enc_utf8 && c > 0x80) |
| 1653 cc = utf_fold(c); | |
| 1654 else | |
| 1347 | 1655 if (MB_ISUPPER(c)) |
| 1656 cc = MB_TOLOWER(c); | |
| 1657 else if (MB_ISLOWER(c)) | |
| 1658 cc = MB_TOUPPER(c); | |
| 7 | 1659 else |
| 1660 return vim_strchr(s, c); | |
| 1661 | |
| 1662 if (has_mbyte) | |
| 1663 { | |
| 474 | 1664 for (p = s; *p != NUL; p += (*mb_ptr2len)(p)) |
| 7 | 1665 { |
| 1666 if (enc_utf8 && c > 0x80) | |
| 1667 { | |
| 1668 if (utf_fold(utf_ptr2char(p)) == cc) | |
| 1669 return p; | |
| 1670 } | |
| 1671 else if (*p == c || *p == cc) | |
| 1672 return p; | |
| 1673 } | |
| 1674 } | |
| 1675 else | |
|
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|
1676 // Faster version for when there are no multi-byte characters. |
| 7 | 1677 for (p = s; *p != NUL; ++p) |
| 1678 if (*p == c || *p == cc) | |
| 1679 return p; | |
| 1680 | |
| 1681 return NULL; | |
| 1682 } | |
| 1683 | |
|
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1684 //////////////////////////////////////////////////////////////// |
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1685 // regsub stuff // |
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|
1686 //////////////////////////////////////////////////////////////// |
| 7 | 1687 |
| 1688 /* | |
| 1689 * We should define ftpr as a pointer to a function returning a pointer to | |
| 1690 * a function returning a pointer to a function ... | |
| 1691 * This is impossible, so we declare a pointer to a function returning a | |
|
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|
1692 * void pointer. This should work for all compilers. |
| 7 | 1693 */ |
|
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|
1694 typedef void (*(*fptr_T)(int *, int)); |
|
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|
1695 |
|
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|
1696 static int vim_regsub_both(char_u *source, typval_T *expr, char_u *dest, int copy, int magic, int backslash); |
| 7 | 1697 |
| 772 | 1698 static fptr_T |
|
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|
1699 do_upper(int *d, int c) |
| 7 | 1700 { |
| 772 | 1701 *d = MB_TOUPPER(c); |
| 1702 | |
| 1703 return (fptr_T)NULL; | |
| 7 | 1704 } |
| 1705 | |
| 772 | 1706 static fptr_T |
|
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|
1707 do_Upper(int *d, int c) |
| 7 | 1708 { |
| 772 | 1709 *d = MB_TOUPPER(c); |
| 1710 | |
| 1711 return (fptr_T)do_Upper; | |
| 1712 } | |
| 1713 | |
| 1714 static fptr_T | |
|
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|
1715 do_lower(int *d, int c) |
| 772 | 1716 { |
| 1717 *d = MB_TOLOWER(c); | |
| 1718 | |
| 1719 return (fptr_T)NULL; | |
| 1720 } | |
| 1721 | |
| 1722 static fptr_T | |
|
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|
1723 do_Lower(int *d, int c) |
| 772 | 1724 { |
| 1725 *d = MB_TOLOWER(c); | |
| 1726 | |
| 1727 return (fptr_T)do_Lower; | |
| 7 | 1728 } |
| 1729 | |
| 1730 /* | |
| 1731 * regtilde(): Replace tildes in the pattern by the old pattern. | |
| 1732 * | |
| 1733 * Short explanation of the tilde: It stands for the previous replacement | |
| 1734 * pattern. If that previous pattern also contains a ~ we should go back a | |
| 1735 * step further... But we insert the previous pattern into the current one | |
| 1736 * and remember that. | |
| 772 | 1737 * This still does not handle the case where "magic" changes. So require the |
| 1738 * user to keep his hands off of "magic". | |
| 7 | 1739 * |
| 1740 * The tildes are parsed once before the first call to vim_regsub(). | |
| 1741 */ | |
| 1742 char_u * | |
|
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1743 regtilde(char_u *source, int magic) |
| 7 | 1744 { |
| 1745 char_u *newsub = source; | |
| 1746 char_u *tmpsub; | |
| 1747 char_u *p; | |
| 1748 int len; | |
| 1749 int prevlen; | |
| 1750 | |
| 1751 for (p = newsub; *p; ++p) | |
| 1752 { | |
| 1753 if ((*p == '~' && magic) || (*p == '\\' && *(p + 1) == '~' && !magic)) | |
| 1754 { | |
| 1755 if (reg_prev_sub != NULL) | |
| 1756 { | |
|
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1757 // length = len(newsub) - 1 + len(prev_sub) + 1 |
| 7 | 1758 prevlen = (int)STRLEN(reg_prev_sub); |
|
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1759 tmpsub = alloc(STRLEN(newsub) + prevlen); |
| 7 | 1760 if (tmpsub != NULL) |
| 1761 { | |
|
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1762 // copy prefix |
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|
1763 len = (int)(p - newsub); // not including ~ |
| 7 | 1764 mch_memmove(tmpsub, newsub, (size_t)len); |
|
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1765 // interpret tilde |
| 7 | 1766 mch_memmove(tmpsub + len, reg_prev_sub, (size_t)prevlen); |
|
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1767 // copy postfix |
| 7 | 1768 if (!magic) |
|
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1769 ++p; // back off backslash |
| 7 | 1770 STRCPY(tmpsub + len + prevlen, p + 1); |
| 1771 | |
|
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1772 if (newsub != source) // already allocated newsub |
| 7 | 1773 vim_free(newsub); |
| 1774 newsub = tmpsub; | |
| 1775 p = newsub + len + prevlen; | |
| 1776 } | |
| 1777 } | |
| 1778 else if (magic) | |
|
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1779 STRMOVE(p, p + 1); // remove '~' |
| 7 | 1780 else |
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1781 STRMOVE(p, p + 2); // remove '\~' |
| 7 | 1782 --p; |
| 1783 } | |
| 1784 else | |
| 1785 { | |
|
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1786 if (*p == '\\' && p[1]) // skip escaped characters |
| 7 | 1787 ++p; |
| 1788 if (has_mbyte) | |
| 474 | 1789 p += (*mb_ptr2len)(p) - 1; |
| 7 | 1790 } |
| 1791 } | |
| 1792 | |
| 1793 vim_free(reg_prev_sub); | |
|
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1794 if (newsub != source) // newsub was allocated, just keep it |
| 7 | 1795 reg_prev_sub = newsub; |
|
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1796 else // no ~ found, need to save newsub |
| 7 | 1797 reg_prev_sub = vim_strsave(newsub); |
| 1798 return newsub; | |
| 1799 } | |
| 1800 | |
| 1801 #ifdef FEAT_EVAL | |
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1802 static int can_f_submatch = FALSE; // TRUE when submatch() can be used |
| 7 | 1803 |
|
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1804 // These pointers are used for reg_submatch(). Needed for when the |
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1805 // substitution string is an expression that contains a call to substitute() |
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1806 // and submatch(). |
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1807 typedef struct { |
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1808 regmatch_T *sm_match; |
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1809 regmmatch_T *sm_mmatch; |
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1810 linenr_T sm_firstlnum; |
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1811 linenr_T sm_maxline; |
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1812 int sm_line_lbr; |
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1813 } regsubmatch_T; |
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1814 |
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1815 static regsubmatch_T rsm; // can only be used when can_f_submatch is TRUE |
| 7 | 1816 #endif |
| 1817 | |
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1818 #ifdef FEAT_EVAL |
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1819 |
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1820 /* |
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1821 * Put the submatches in "argv[argskip]" which is a list passed into |
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1822 * call_func() by vim_regsub_both(). |
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1823 */ |
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1824 static int |
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1825 fill_submatch_list(int argc UNUSED, typval_T *argv, int argskip, int argcount) |
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1826 { |
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1827 listitem_T *li; |
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1828 int i; |
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1829 char_u *s; |
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1830 typval_T *listarg = argv + argskip; |
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1831 |
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1832 if (argcount == argskip) |
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1833 // called function doesn't take a submatches argument |
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1834 return argskip; |
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1835 |
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1836 // Relies on sl_list to be the first item in staticList10_T. |
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1837 init_static_list((staticList10_T *)(listarg->vval.v_list)); |
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1838 |
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1839 // There are always 10 list items in staticList10_T. |
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1840 li = listarg->vval.v_list->lv_first; |
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1841 for (i = 0; i < 10; ++i) |
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1842 { |
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1843 s = rsm.sm_match->startp[i]; |
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1844 if (s == NULL || rsm.sm_match->endp[i] == NULL) |
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1845 s = NULL; |
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1846 else |
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1847 s = vim_strnsave(s, rsm.sm_match->endp[i] - s); |
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1848 li->li_tv.v_type = VAR_STRING; |
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1849 li->li_tv.vval.v_string = s; |
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1850 li = li->li_next; |
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1851 } |
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1852 return argskip + 1; |
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1853 } |
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1854 |
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1855 static void |
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1856 clear_submatch_list(staticList10_T *sl) |
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1857 { |
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1858 int i; |
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1859 |
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1860 for (i = 0; i < 10; ++i) |
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1861 vim_free(sl->sl_items[i].li_tv.vval.v_string); |
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1862 } |
|
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1863 #endif |
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1864 |
| 7 | 1865 /* |
| 1866 * vim_regsub() - perform substitutions after a vim_regexec() or | |
| 1867 * vim_regexec_multi() match. | |
| 1868 * | |
| 1869 * If "copy" is TRUE really copy into "dest". | |
| 1870 * If "copy" is FALSE nothing is copied, this is just to find out the length | |
| 1871 * of the result. | |
| 1872 * | |
| 1873 * If "backslash" is TRUE, a backslash will be removed later, need to double | |
| 1874 * them to keep them, and insert a backslash before a CR to avoid it being | |
| 1875 * replaced with a line break later. | |
| 1876 * | |
| 1877 * Note: The matched text must not change between the call of | |
| 1878 * vim_regexec()/vim_regexec_multi() and vim_regsub()! It would make the back | |
| 1879 * references invalid! | |
| 1880 * | |
| 1881 * Returns the size of the replacement, including terminating NUL. | |
| 1882 */ | |
| 1883 int | |
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1884 vim_regsub( |
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1885 regmatch_T *rmp, |
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1886 char_u *source, |
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1887 typval_T *expr, |
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1888 char_u *dest, |
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1889 int copy, |
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1890 int magic, |
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1891 int backslash) |
| 7 | 1892 { |
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1893 int result; |
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1894 regexec_T rex_save; |
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1895 int rex_in_use_save = rex_in_use; |
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1896 |
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1897 if (rex_in_use) |
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1898 // Being called recursively, save the state. |
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1899 rex_save = rex; |
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1900 rex_in_use = TRUE; |
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1901 |
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1902 rex.reg_match = rmp; |
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1903 rex.reg_mmatch = NULL; |
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1904 rex.reg_maxline = 0; |
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1905 rex.reg_buf = curbuf; |
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1906 rex.reg_line_lbr = TRUE; |
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1907 result = vim_regsub_both(source, expr, dest, copy, magic, backslash); |
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1908 |
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1909 rex_in_use = rex_in_use_save; |
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1910 if (rex_in_use) |
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1911 rex = rex_save; |
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1912 |
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1913 return result; |
| 7 | 1914 } |
| 1915 | |
| 1916 int | |
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1917 vim_regsub_multi( |
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1918 regmmatch_T *rmp, |
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1919 linenr_T lnum, |
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1920 char_u *source, |
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1921 char_u *dest, |
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1922 int copy, |
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1923 int magic, |
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1924 int backslash) |
| 7 | 1925 { |
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1926 int result; |
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1927 regexec_T rex_save; |
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1928 int rex_in_use_save = rex_in_use; |
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1929 |
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1930 if (rex_in_use) |
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1931 // Being called recursively, save the state. |
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1932 rex_save = rex; |
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1933 rex_in_use = TRUE; |
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1934 |
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1935 rex.reg_match = NULL; |
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1936 rex.reg_mmatch = rmp; |
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1937 rex.reg_buf = curbuf; // always works on the current buffer! |
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1938 rex.reg_firstlnum = lnum; |
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1939 rex.reg_maxline = curbuf->b_ml.ml_line_count - lnum; |
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1940 rex.reg_line_lbr = FALSE; |
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1941 result = vim_regsub_both(source, NULL, dest, copy, magic, backslash); |
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1942 |
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1943 rex_in_use = rex_in_use_save; |
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1944 if (rex_in_use) |
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1945 rex = rex_save; |
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1946 |
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1947 return result; |
| 7 | 1948 } |
| 1949 | |
| 1950 static int | |
|
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1951 vim_regsub_both( |
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1952 char_u *source, |
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1953 typval_T *expr, |
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1954 char_u *dest, |
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1955 int copy, |
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1956 int magic, |
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1957 int backslash) |
| 7 | 1958 { |
| 1959 char_u *src; | |
| 1960 char_u *dst; | |
| 1961 char_u *s; | |
| 1962 int c; | |
| 772 | 1963 int cc; |
| 7 | 1964 int no = -1; |
| 4244 | 1965 fptr_T func_all = (fptr_T)NULL; |
| 1966 fptr_T func_one = (fptr_T)NULL; | |
|
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1967 linenr_T clnum = 0; // init for GCC |
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1968 int len = 0; // init for GCC |
| 7 | 1969 #ifdef FEAT_EVAL |
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1970 static char_u *eval_result = NULL; |
| 7 | 1971 #endif |
| 1972 | |
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1973 // Be paranoid... |
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1974 if ((source == NULL && expr == NULL) || dest == NULL) |
| 7 | 1975 { |
|
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1976 emsg(_(e_null_argument)); |
| 7 | 1977 return 0; |
| 1978 } | |
| 1979 if (prog_magic_wrong()) | |
| 1980 return 0; | |
| 1981 src = source; | |
| 1982 dst = dest; | |
| 1983 | |
| 1984 /* | |
| 1985 * When the substitute part starts with "\=" evaluate it as an expression. | |
| 1986 */ | |
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1987 if (expr != NULL || (source[0] == '\\' && source[1] == '=')) |
| 7 | 1988 { |
| 1989 #ifdef FEAT_EVAL | |
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1990 // To make sure that the length doesn't change between checking the |
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1991 // length and copying the string, and to speed up things, the |
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1992 // resulting string is saved from the call with "copy" == FALSE to the |
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1993 // call with "copy" == TRUE. |
| 7 | 1994 if (copy) |
| 1995 { | |
| 1996 if (eval_result != NULL) | |
| 1997 { | |
| 1998 STRCPY(dest, eval_result); | |
| 1999 dst += STRLEN(eval_result); | |
|
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2000 VIM_CLEAR(eval_result); |
| 7 | 2001 } |
| 2002 } | |
| 2003 else | |
| 2004 { | |
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2005 int prev_can_f_submatch = can_f_submatch; |
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2006 regsubmatch_T rsm_save; |
| 7 | 2007 |
| 2008 vim_free(eval_result); | |
| 2009 | |
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2010 // The expression may contain substitute(), which calls us |
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2011 // recursively. Make sure submatch() gets the text from the first |
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2012 // level. |
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2013 if (can_f_submatch) |
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2014 rsm_save = rsm; |
| 7 | 2015 can_f_submatch = TRUE; |
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2016 rsm.sm_match = rex.reg_match; |
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2017 rsm.sm_mmatch = rex.reg_mmatch; |
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2018 rsm.sm_firstlnum = rex.reg_firstlnum; |
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2019 rsm.sm_maxline = rex.reg_maxline; |
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2020 rsm.sm_line_lbr = rex.reg_line_lbr; |
| 7 | 2021 |
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2022 if (expr != NULL) |
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2023 { |
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2024 typval_T argv[2]; |
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2025 char_u buf[NUMBUFLEN]; |
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2026 typval_T rettv; |
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2027 staticList10_T matchList; |
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2028 funcexe_T funcexe; |
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2029 |
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2030 rettv.v_type = VAR_STRING; |
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2031 rettv.vval.v_string = NULL; |
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2032 argv[0].v_type = VAR_LIST; |
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2033 argv[0].vval.v_list = &matchList.sl_list; |
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2034 matchList.sl_list.lv_len = 0; |
|
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2035 CLEAR_FIELD(funcexe); |
|
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2036 funcexe.fe_argv_func = fill_submatch_list; |
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2037 funcexe.fe_evaluate = TRUE; |
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2038 if (expr->v_type == VAR_FUNC) |
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2039 { |
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2040 s = expr->vval.v_string; |
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2041 call_func(s, -1, &rettv, 1, argv, &funcexe); |
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2042 } |
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2043 else if (expr->v_type == VAR_PARTIAL) |
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2044 { |
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2045 partial_T *partial = expr->vval.v_partial; |
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2046 |
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2047 s = partial_name(partial); |
|
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2048 funcexe.fe_partial = partial; |
|
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2049 call_func(s, -1, &rettv, 1, argv, &funcexe); |
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2050 } |
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2051 if (matchList.sl_list.lv_len > 0) |
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2052 // fill_submatch_list() was called |
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2053 clear_submatch_list(&matchList); |
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2054 |
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2055 if (rettv.v_type == VAR_UNKNOWN) |
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2056 // something failed, no need to report another error |
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2057 eval_result = NULL; |
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2058 else |
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2059 { |
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2060 eval_result = tv_get_string_buf_chk(&rettv, buf); |
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2061 if (eval_result != NULL) |
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2062 eval_result = vim_strsave(eval_result); |
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2063 } |
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2064 clear_tv(&rettv); |
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2065 } |
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2066 else if (substitute_instr != NULL) |
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2067 // Execute instructions from ISN_SUBSTITUTE. |
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2068 eval_result = exe_substitute_instr(); |
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2069 else |
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20996
3af71cbcfdbe
patch 8.2.1049: Vim9: leaking memory when using continuation line
Bram Moolenaar <Bram@vim.org>
parents:
20830
diff
changeset
|
2070 eval_result = eval_to_string(source + 2, TRUE); |
|
9589
bf204ab1ce7d
commit https://github.com/vim/vim/commit/72ab729c3dcdea0fba44d8e676602c847e841bcd
Christian Brabandt <cb@256bit.org>
parents:
9015
diff
changeset
|
2071 |
| 7 | 2072 if (eval_result != NULL) |
| 2073 { | |
|
2125
b8744d1982d1
updated for version 7.2.407
Bram Moolenaar <bram@zimbu.org>
parents:
2012
diff
changeset
|
2074 int had_backslash = FALSE; |
|
b8744d1982d1
updated for version 7.2.407
Bram Moolenaar <bram@zimbu.org>
parents:
2012
diff
changeset
|
2075 |
|
11127
506f5d8b7d8b
patch 8.0.0451: some macros are in lower case
Christian Brabandt <cb@256bit.org>
parents:
11121
diff
changeset
|
2076 for (s = eval_result; *s != NUL; MB_PTR_ADV(s)) |
| 7 | 2077 { |
|
18812
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
2078 // Change NL to CR, so that it becomes a line break, |
|
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
2079 // unless called from vim_regexec_nl(). |
|
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
2080 // Skip over a backslashed character. |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2081 if (*s == NL && !rsm.sm_line_lbr) |
| 7 | 2082 *s = CAR; |
| 2083 else if (*s == '\\' && s[1] != NUL) | |
|
2125
b8744d1982d1
updated for version 7.2.407
Bram Moolenaar <bram@zimbu.org>
parents:
2012
diff
changeset
|
2084 { |
| 7 | 2085 ++s; |
| 2173 | 2086 /* Change NL to CR here too, so that this works: |
| 2087 * :s/abc\\\ndef/\="aaa\\\nbbb"/ on text: | |
| 2088 * abc\ | |
| 2089 * def | |
| 2904 | 2090 * Not when called from vim_regexec_nl(). |
| 2173 | 2091 */ |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2092 if (*s == NL && !rsm.sm_line_lbr) |
| 2173 | 2093 *s = CAR; |
|
2125
b8744d1982d1
updated for version 7.2.407
Bram Moolenaar <bram@zimbu.org>
parents:
2012
diff
changeset
|
2094 had_backslash = TRUE; |
|
b8744d1982d1
updated for version 7.2.407
Bram Moolenaar <bram@zimbu.org>
parents:
2012
diff
changeset
|
2095 } |
|
b8744d1982d1
updated for version 7.2.407
Bram Moolenaar <bram@zimbu.org>
parents:
2012
diff
changeset
|
2096 } |
|
b8744d1982d1
updated for version 7.2.407
Bram Moolenaar <bram@zimbu.org>
parents:
2012
diff
changeset
|
2097 if (had_backslash && backslash) |
|
b8744d1982d1
updated for version 7.2.407
Bram Moolenaar <bram@zimbu.org>
parents:
2012
diff
changeset
|
2098 { |
|
18812
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
2099 // Backslashes will be consumed, need to double them. |
|
2125
b8744d1982d1
updated for version 7.2.407
Bram Moolenaar <bram@zimbu.org>
parents:
2012
diff
changeset
|
2100 s = vim_strsave_escaped(eval_result, (char_u *)"\\"); |
|
b8744d1982d1
updated for version 7.2.407
Bram Moolenaar <bram@zimbu.org>
parents:
2012
diff
changeset
|
2101 if (s != NULL) |
|
b8744d1982d1
updated for version 7.2.407
Bram Moolenaar <bram@zimbu.org>
parents:
2012
diff
changeset
|
2102 { |
|
b8744d1982d1
updated for version 7.2.407
Bram Moolenaar <bram@zimbu.org>
parents:
2012
diff
changeset
|
2103 vim_free(eval_result); |
|
b8744d1982d1
updated for version 7.2.407
Bram Moolenaar <bram@zimbu.org>
parents:
2012
diff
changeset
|
2104 eval_result = s; |
|
b8744d1982d1
updated for version 7.2.407
Bram Moolenaar <bram@zimbu.org>
parents:
2012
diff
changeset
|
2105 } |
| 7 | 2106 } |
| 2107 | |
| 2108 dst += STRLEN(eval_result); | |
| 2109 } | |
| 2110 | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2111 can_f_submatch = prev_can_f_submatch; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2112 if (can_f_submatch) |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2113 rsm = rsm_save; |
| 7 | 2114 } |
| 2115 #endif | |
| 2116 } | |
| 2117 else | |
| 2118 while ((c = *src++) != NUL) | |
| 2119 { | |
| 2120 if (c == '&' && magic) | |
| 2121 no = 0; | |
| 2122 else if (c == '\\' && *src != NUL) | |
| 2123 { | |
| 2124 if (*src == '&' && !magic) | |
| 2125 { | |
| 2126 ++src; | |
| 2127 no = 0; | |
| 2128 } | |
| 2129 else if ('0' <= *src && *src <= '9') | |
| 2130 { | |
| 2131 no = *src++ - '0'; | |
| 2132 } | |
| 2133 else if (vim_strchr((char_u *)"uUlLeE", *src)) | |
| 2134 { | |
| 2135 switch (*src++) | |
| 2136 { | |
| 4244 | 2137 case 'u': func_one = (fptr_T)do_upper; |
| 7 | 2138 continue; |
| 4244 | 2139 case 'U': func_all = (fptr_T)do_Upper; |
| 7 | 2140 continue; |
| 4244 | 2141 case 'l': func_one = (fptr_T)do_lower; |
| 7 | 2142 continue; |
| 4244 | 2143 case 'L': func_all = (fptr_T)do_Lower; |
| 7 | 2144 continue; |
| 2145 case 'e': | |
| 4244 | 2146 case 'E': func_one = func_all = (fptr_T)NULL; |
| 7 | 2147 continue; |
| 2148 } | |
| 2149 } | |
| 2150 } | |
|
18812
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
2151 if (no < 0) // Ordinary character. |
| 7 | 2152 { |
| 798 | 2153 if (c == K_SPECIAL && src[0] != NUL && src[1] != NUL) |
| 2154 { | |
|
18812
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
2155 // Copy a special key as-is. |
| 798 | 2156 if (copy) |
| 2157 { | |
| 2158 *dst++ = c; | |
| 2159 *dst++ = *src++; | |
| 2160 *dst++ = *src++; | |
| 2161 } | |
| 2162 else | |
| 2163 { | |
| 2164 dst += 3; | |
| 2165 src += 2; | |
| 2166 } | |
| 2167 continue; | |
| 2168 } | |
| 2169 | |
| 7 | 2170 if (c == '\\' && *src != NUL) |
| 2171 { | |
|
18812
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
2172 // Check for abbreviations -- webb |
| 7 | 2173 switch (*src) |
| 2174 { | |
| 2175 case 'r': c = CAR; ++src; break; | |
| 2176 case 'n': c = NL; ++src; break; | |
| 2177 case 't': c = TAB; ++src; break; | |
|
18812
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
2178 // Oh no! \e already has meaning in subst pat :-( |
|
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
2179 // case 'e': c = ESC; ++src; break; |
| 7 | 2180 case 'b': c = Ctrl_H; ++src; break; |
| 2181 | |
|
18812
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
2182 // If "backslash" is TRUE the backslash will be removed |
|
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
2183 // later. Used to insert a literal CR. |
| 7 | 2184 default: if (backslash) |
| 2185 { | |
| 2186 if (copy) | |
| 2187 *dst = '\\'; | |
| 2188 ++dst; | |
| 2189 } | |
| 2190 c = *src++; | |
| 2191 } | |
| 2192 } | |
| 798 | 2193 else if (has_mbyte) |
| 2194 c = mb_ptr2char(src - 1); | |
| 7 | 2195 |
|
18812
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
2196 // Write to buffer, if copy is set. |
| 4244 | 2197 if (func_one != (fptr_T)NULL) |
|
18812
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
2198 // Turbo C complains without the typecast |
| 4244 | 2199 func_one = (fptr_T)(func_one(&cc, c)); |
| 2200 else if (func_all != (fptr_T)NULL) | |
|
18812
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
2201 // Turbo C complains without the typecast |
| 4244 | 2202 func_all = (fptr_T)(func_all(&cc, c)); |
|
18812
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
2203 else // just copy |
| 772 | 2204 cc = c; |
| 2205 | |
| 2206 if (has_mbyte) | |
| 7 | 2207 { |
|
2307
81527f127fb1
Fix: Composing characters in :s substitute text were dropped.
Bram Moolenaar <bram@vim.org>
parents:
2247
diff
changeset
|
2208 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
|
2209 |
| 7 | 2210 if (copy) |
| 772 | 2211 mb_char2bytes(cc, dst); |
| 2212 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
|
2213 if (enc_utf8) |
|
81527f127fb1
Fix: Composing characters in :s substitute text were dropped.
Bram Moolenaar <bram@vim.org>
parents:
2247
diff
changeset
|
2214 { |
|
81527f127fb1
Fix: Composing characters in :s substitute text were dropped.
Bram Moolenaar <bram@vim.org>
parents:
2247
diff
changeset
|
2215 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
|
2216 |
|
18812
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
2217 // If the character length is shorter than "totlen", there |
|
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
2218 // are composing characters; copy them as-is. |
|
2307
81527f127fb1
Fix: Composing characters in :s substitute text were dropped.
Bram Moolenaar <bram@vim.org>
parents:
2247
diff
changeset
|
2219 if (clen < totlen) |
|
81527f127fb1
Fix: Composing characters in :s substitute text were dropped.
Bram Moolenaar <bram@vim.org>
parents:
2247
diff
changeset
|
2220 { |
|
81527f127fb1
Fix: Composing characters in :s substitute text were dropped.
Bram Moolenaar <bram@vim.org>
parents:
2247
diff
changeset
|
2221 if (copy) |
|
81527f127fb1
Fix: Composing characters in :s substitute text were dropped.
Bram Moolenaar <bram@vim.org>
parents:
2247
diff
changeset
|
2222 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
|
2223 (size_t)(totlen - clen)); |
|
81527f127fb1
Fix: Composing characters in :s substitute text were dropped.
Bram Moolenaar <bram@vim.org>
parents:
2247
diff
changeset
|
2224 dst += totlen - clen; |
|
81527f127fb1
Fix: Composing characters in :s substitute text were dropped.
Bram Moolenaar <bram@vim.org>
parents:
2247
diff
changeset
|
2225 } |
|
81527f127fb1
Fix: Composing characters in :s substitute text were dropped.
Bram Moolenaar <bram@vim.org>
parents:
2247
diff
changeset
|
2226 } |
|
81527f127fb1
Fix: Composing characters in :s substitute text were dropped.
Bram Moolenaar <bram@vim.org>
parents:
2247
diff
changeset
|
2227 src += totlen - 1; |
| 7 | 2228 } |
|
15603
639b8318472c
patch 8.1.0809: too many #ifdefs
Bram Moolenaar <Bram@vim.org>
parents:
15555
diff
changeset
|
2229 else if (copy) |
| 772 | 2230 *dst = cc; |
| 7 | 2231 dst++; |
| 2232 } | |
| 2233 else | |
| 2234 { | |
| 2235 if (REG_MULTI) | |
| 2236 { | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2237 clnum = rex.reg_mmatch->startpos[no].lnum; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2238 if (clnum < 0 || rex.reg_mmatch->endpos[no].lnum < 0) |
| 7 | 2239 s = NULL; |
| 2240 else | |
| 2241 { | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2242 s = reg_getline(clnum) + rex.reg_mmatch->startpos[no].col; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2243 if (rex.reg_mmatch->endpos[no].lnum == clnum) |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2244 len = rex.reg_mmatch->endpos[no].col |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2245 - rex.reg_mmatch->startpos[no].col; |
| 7 | 2246 else |
| 2247 len = (int)STRLEN(s); | |
| 2248 } | |
| 2249 } | |
| 2250 else | |
| 2251 { | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2252 s = rex.reg_match->startp[no]; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2253 if (rex.reg_match->endp[no] == NULL) |
| 7 | 2254 s = NULL; |
| 2255 else | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2256 len = (int)(rex.reg_match->endp[no] - s); |
| 7 | 2257 } |
| 2258 if (s != NULL) | |
| 2259 { | |
| 2260 for (;;) | |
| 2261 { | |
| 2262 if (len == 0) | |
| 2263 { | |
| 2264 if (REG_MULTI) | |
| 2265 { | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2266 if (rex.reg_mmatch->endpos[no].lnum == clnum) |
| 7 | 2267 break; |
| 2268 if (copy) | |
| 2269 *dst = CAR; | |
| 2270 ++dst; | |
| 2271 s = reg_getline(++clnum); | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2272 if (rex.reg_mmatch->endpos[no].lnum == clnum) |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2273 len = rex.reg_mmatch->endpos[no].col; |
| 7 | 2274 else |
| 2275 len = (int)STRLEN(s); | |
| 2276 } | |
| 2277 else | |
| 2278 break; | |
| 2279 } | |
|
18812
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
2280 else if (*s == NUL) // we hit NUL. |
| 7 | 2281 { |
| 2282 if (copy) | |
|
25306
078edc1821bf
patch 8.2.3190: error messages are spread out
Bram Moolenaar <Bram@vim.org>
parents:
24768
diff
changeset
|
2283 iemsg(_(e_damaged_match_string)); |
| 7 | 2284 goto exit; |
| 2285 } | |
| 2286 else | |
| 2287 { | |
| 2288 if (backslash && (*s == CAR || *s == '\\')) | |
| 2289 { | |
| 2290 /* | |
| 2291 * Insert a backslash in front of a CR, otherwise | |
| 2292 * it will be replaced by a line break. | |
| 2293 * Number of backslashes will be halved later, | |
| 2294 * double them here. | |
| 2295 */ | |
| 2296 if (copy) | |
| 2297 { | |
| 2298 dst[0] = '\\'; | |
| 2299 dst[1] = *s; | |
| 2300 } | |
| 2301 dst += 2; | |
| 2302 } | |
| 2303 else | |
| 2304 { | |
| 772 | 2305 if (has_mbyte) |
| 2306 c = mb_ptr2char(s); | |
| 2307 else | |
| 2308 c = *s; | |
| 2309 | |
| 4244 | 2310 if (func_one != (fptr_T)NULL) |
|
18812
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
2311 // Turbo C complains without the typecast |
| 4244 | 2312 func_one = (fptr_T)(func_one(&cc, c)); |
| 2313 else if (func_all != (fptr_T)NULL) | |
|
18812
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
2314 // Turbo C complains without the typecast |
| 4244 | 2315 func_all = (fptr_T)(func_all(&cc, c)); |
|
18812
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
2316 else // just copy |
| 772 | 2317 cc = c; |
| 2318 | |
| 2319 if (has_mbyte) | |
| 7 | 2320 { |
| 1332 | 2321 int l; |
| 2322 | |
|
18812
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
2323 // Copy composing characters separately, one |
|
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
2324 // at a time. |
| 1332 | 2325 if (enc_utf8) |
| 2326 l = utf_ptr2len(s) - 1; | |
| 2327 else | |
| 2328 l = mb_ptr2len(s) - 1; | |
| 772 | 2329 |
| 2330 s += l; | |
| 2331 len -= l; | |
| 2332 if (copy) | |
| 2333 mb_char2bytes(cc, dst); | |
| 2334 dst += mb_char2len(cc) - 1; | |
| 7 | 2335 } |
|
15603
639b8318472c
patch 8.1.0809: too many #ifdefs
Bram Moolenaar <Bram@vim.org>
parents:
15555
diff
changeset
|
2336 else if (copy) |
| 772 | 2337 *dst = cc; |
| 2338 dst++; | |
| 7 | 2339 } |
| 772 | 2340 |
| 7 | 2341 ++s; |
| 2342 --len; | |
| 2343 } | |
| 2344 } | |
| 2345 } | |
| 2346 no = -1; | |
| 2347 } | |
| 2348 } | |
| 2349 if (copy) | |
| 2350 *dst = NUL; | |
| 2351 | |
| 2352 exit: | |
| 2353 return (int)((dst - dest) + 1); | |
| 2354 } | |
| 2355 | |
| 2356 #ifdef FEAT_EVAL | |
| 2357 /* | |
| 2011 | 2358 * Call reg_getline() with the line numbers from the submatch. If a |
| 2359 * substitute() was used the reg_maxline and other values have been | |
| 2360 * overwritten. | |
| 2361 */ | |
| 2362 static char_u * | |
|
7833
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
2363 reg_getline_submatch(linenr_T lnum) |
| 2011 | 2364 { |
| 2365 char_u *s; | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2366 linenr_T save_first = rex.reg_firstlnum; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2367 linenr_T save_max = rex.reg_maxline; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2368 |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2369 rex.reg_firstlnum = rsm.sm_firstlnum; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2370 rex.reg_maxline = rsm.sm_maxline; |
| 2011 | 2371 |
| 2372 s = reg_getline(lnum); | |
| 2373 | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2374 rex.reg_firstlnum = save_first; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2375 rex.reg_maxline = save_max; |
| 2011 | 2376 return s; |
| 2377 } | |
| 2378 | |
| 2379 /* | |
| 1209 | 2380 * Used for the submatch() function: get the string from the n'th submatch in |
| 7 | 2381 * allocated memory. |
| 2382 * Returns NULL when not in a ":s" command and for a non-existing submatch. | |
| 2383 */ | |
| 2384 char_u * | |
|
7833
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
2385 reg_submatch(int no) |
| 7 | 2386 { |
| 2387 char_u *retval = NULL; | |
| 2388 char_u *s; | |
| 2389 int len; | |
| 2390 int round; | |
| 2391 linenr_T lnum; | |
| 2392 | |
| 840 | 2393 if (!can_f_submatch || no < 0) |
| 7 | 2394 return NULL; |
| 2395 | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2396 if (rsm.sm_match == NULL) |
| 7 | 2397 { |
| 2398 /* | |
| 2399 * First round: compute the length and allocate memory. | |
| 2400 * Second round: copy the text. | |
| 2401 */ | |
| 2402 for (round = 1; round <= 2; ++round) | |
| 2403 { | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2404 lnum = rsm.sm_mmatch->startpos[no].lnum; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2405 if (lnum < 0 || rsm.sm_mmatch->endpos[no].lnum < 0) |
| 7 | 2406 return NULL; |
| 2407 | |
|
16040
13ab270dd68d
patch 8.1.1025: checking NULL pointer after addition
Bram Moolenaar <Bram@vim.org>
parents:
15967
diff
changeset
|
2408 s = reg_getline_submatch(lnum); |
|
13ab270dd68d
patch 8.1.1025: checking NULL pointer after addition
Bram Moolenaar <Bram@vim.org>
parents:
15967
diff
changeset
|
2409 if (s == NULL) // anti-crash check, cannot happen? |
| 7 | 2410 break; |
|
16040
13ab270dd68d
patch 8.1.1025: checking NULL pointer after addition
Bram Moolenaar <Bram@vim.org>
parents:
15967
diff
changeset
|
2411 s += rsm.sm_mmatch->startpos[no].col; |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2412 if (rsm.sm_mmatch->endpos[no].lnum == lnum) |
| 7 | 2413 { |
|
18812
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
2414 // Within one line: take form start to end col. |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2415 len = rsm.sm_mmatch->endpos[no].col |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2416 - rsm.sm_mmatch->startpos[no].col; |
| 7 | 2417 if (round == 2) |
| 418 | 2418 vim_strncpy(retval, s, len); |
| 7 | 2419 ++len; |
| 2420 } | |
| 2421 else | |
| 2422 { | |
|
18812
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
2423 // Multiple lines: take start line from start col, middle |
|
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
2424 // lines completely and end line up to end col. |
| 7 | 2425 len = (int)STRLEN(s); |
| 2426 if (round == 2) | |
| 2427 { | |
| 2428 STRCPY(retval, s); | |
| 2429 retval[len] = '\n'; | |
| 2430 } | |
| 2431 ++len; | |
| 2432 ++lnum; | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2433 while (lnum < rsm.sm_mmatch->endpos[no].lnum) |
| 7 | 2434 { |
| 2011 | 2435 s = reg_getline_submatch(lnum++); |
| 7 | 2436 if (round == 2) |
| 2437 STRCPY(retval + len, s); | |
| 2438 len += (int)STRLEN(s); | |
| 2439 if (round == 2) | |
| 2440 retval[len] = '\n'; | |
| 2441 ++len; | |
| 2442 } | |
| 2443 if (round == 2) | |
| 2011 | 2444 STRNCPY(retval + len, reg_getline_submatch(lnum), |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2445 rsm.sm_mmatch->endpos[no].col); |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2446 len += rsm.sm_mmatch->endpos[no].col; |
| 7 | 2447 if (round == 2) |
| 2448 retval[len] = NUL; | |
| 2449 ++len; | |
| 2450 } | |
| 2451 | |
| 840 | 2452 if (retval == NULL) |
| 7 | 2453 { |
|
16768
695d9ef00b03
patch 8.1.1386: unessesary type casts for lalloc()
Bram Moolenaar <Bram@vim.org>
parents:
16764
diff
changeset
|
2454 retval = alloc(len); |
| 840 | 2455 if (retval == NULL) |
| 7 | 2456 return NULL; |
| 2457 } | |
| 2458 } | |
| 2459 } | |
| 2460 else | |
| 2461 { | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2462 s = rsm.sm_match->startp[no]; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2463 if (s == NULL || rsm.sm_match->endp[no] == NULL) |
| 7 | 2464 retval = NULL; |
| 2465 else | |
|
20830
9064044fd4f6
patch 8.2.0967: unnecessary type casts for vim_strnsave()
Bram Moolenaar <Bram@vim.org>
parents:
20113
diff
changeset
|
2466 retval = vim_strnsave(s, rsm.sm_match->endp[no] - s); |
| 7 | 2467 } |
| 2468 | |
| 2469 return retval; | |
| 2470 } | |
| 5794 | 2471 |
| 2472 /* | |
| 2473 * Used for the submatch() function with the optional non-zero argument: get | |
| 2474 * the list of strings from the n'th submatch in allocated memory with NULs | |
| 2475 * represented in NLs. | |
| 2476 * Returns a list of allocated strings. Returns NULL when not in a ":s" | |
| 2477 * command, for a non-existing submatch and for any error. | |
| 2478 */ | |
| 2479 list_T * | |
|
7833
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
2480 reg_submatch_list(int no) |
| 5794 | 2481 { |
| 2482 char_u *s; | |
| 2483 linenr_T slnum; | |
| 2484 linenr_T elnum; | |
| 2485 colnr_T scol; | |
| 2486 colnr_T ecol; | |
| 2487 int i; | |
| 2488 list_T *list; | |
| 2489 int error = FALSE; | |
| 2490 | |
| 2491 if (!can_f_submatch || no < 0) | |
| 2492 return NULL; | |
| 2493 | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2494 if (rsm.sm_match == NULL) |
| 5794 | 2495 { |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2496 slnum = rsm.sm_mmatch->startpos[no].lnum; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2497 elnum = rsm.sm_mmatch->endpos[no].lnum; |
| 5794 | 2498 if (slnum < 0 || elnum < 0) |
| 2499 return NULL; | |
| 2500 | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2501 scol = rsm.sm_mmatch->startpos[no].col; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2502 ecol = rsm.sm_mmatch->endpos[no].col; |
| 5794 | 2503 |
| 2504 list = list_alloc(); | |
| 2505 if (list == NULL) | |
| 2506 return NULL; | |
| 2507 | |
| 2508 s = reg_getline_submatch(slnum) + scol; | |
| 2509 if (slnum == elnum) | |
| 2510 { | |
| 2511 if (list_append_string(list, s, ecol - scol) == FAIL) | |
| 2512 error = TRUE; | |
| 2513 } | |
| 2514 else | |
| 2515 { | |
| 2516 if (list_append_string(list, s, -1) == FAIL) | |
| 2517 error = TRUE; | |
| 2518 for (i = 1; i < elnum - slnum; i++) | |
| 2519 { | |
| 2520 s = reg_getline_submatch(slnum + i); | |
| 2521 if (list_append_string(list, s, -1) == FAIL) | |
| 2522 error = TRUE; | |
| 2523 } | |
| 2524 s = reg_getline_submatch(elnum); | |
| 2525 if (list_append_string(list, s, ecol) == FAIL) | |
| 2526 error = TRUE; | |
| 2527 } | |
| 2528 } | |
| 2529 else | |
| 2530 { | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2531 s = rsm.sm_match->startp[no]; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2532 if (s == NULL || rsm.sm_match->endp[no] == NULL) |
| 5794 | 2533 return NULL; |
| 2534 list = list_alloc(); | |
| 2535 if (list == NULL) | |
| 2536 return NULL; | |
| 2537 if (list_append_string(list, s, | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2538 (int)(rsm.sm_match->endp[no] - s)) == FAIL) |
| 5794 | 2539 error = TRUE; |
| 2540 } | |
| 2541 | |
| 2542 if (error) | |
| 2543 { | |
|
8863
e1b84109506a
commit https://github.com/vim/vim/commit/107e1eef1df3b786ad3ad49fbdb9e058649303b5
Christian Brabandt <cb@256bit.org>
parents:
8825
diff
changeset
|
2544 list_free(list); |
| 5794 | 2545 return NULL; |
| 2546 } | |
|
22143
3ec9e302ec94
patch 8.2.1621: crash when using submatch(0, 1) in substitute()
Bram Moolenaar <Bram@vim.org>
parents:
20996
diff
changeset
|
2547 ++list->lv_refcount; |
| 5794 | 2548 return list; |
| 2549 } | |
| 7 | 2550 #endif |
| 4444 | 2551 |
|
19405
08f4dc2ba716
patch 8.2.0260: several lines of code are duplicated
Bram Moolenaar <Bram@vim.org>
parents:
19384
diff
changeset
|
2552 /* |
|
08f4dc2ba716
patch 8.2.0260: several lines of code are duplicated
Bram Moolenaar <Bram@vim.org>
parents:
19384
diff
changeset
|
2553 * Initialize the values used for matching against multiple lines |
|
08f4dc2ba716
patch 8.2.0260: several lines of code are duplicated
Bram Moolenaar <Bram@vim.org>
parents:
19384
diff
changeset
|
2554 */ |
|
08f4dc2ba716
patch 8.2.0260: several lines of code are duplicated
Bram Moolenaar <Bram@vim.org>
parents:
19384
diff
changeset
|
2555 static void |
|
08f4dc2ba716
patch 8.2.0260: several lines of code are duplicated
Bram Moolenaar <Bram@vim.org>
parents:
19384
diff
changeset
|
2556 init_regexec_multi( |
|
08f4dc2ba716
patch 8.2.0260: several lines of code are duplicated
Bram Moolenaar <Bram@vim.org>
parents:
19384
diff
changeset
|
2557 regmmatch_T *rmp, |
|
08f4dc2ba716
patch 8.2.0260: several lines of code are duplicated
Bram Moolenaar <Bram@vim.org>
parents:
19384
diff
changeset
|
2558 win_T *win, // window in which to search or NULL |
|
08f4dc2ba716
patch 8.2.0260: several lines of code are duplicated
Bram Moolenaar <Bram@vim.org>
parents:
19384
diff
changeset
|
2559 buf_T *buf, // buffer in which to search |
|
08f4dc2ba716
patch 8.2.0260: several lines of code are duplicated
Bram Moolenaar <Bram@vim.org>
parents:
19384
diff
changeset
|
2560 linenr_T lnum) // nr of line to start looking for match |
|
08f4dc2ba716
patch 8.2.0260: several lines of code are duplicated
Bram Moolenaar <Bram@vim.org>
parents:
19384
diff
changeset
|
2561 { |
|
08f4dc2ba716
patch 8.2.0260: several lines of code are duplicated
Bram Moolenaar <Bram@vim.org>
parents:
19384
diff
changeset
|
2562 rex.reg_match = NULL; |
|
08f4dc2ba716
patch 8.2.0260: several lines of code are duplicated
Bram Moolenaar <Bram@vim.org>
parents:
19384
diff
changeset
|
2563 rex.reg_mmatch = rmp; |
|
08f4dc2ba716
patch 8.2.0260: several lines of code are duplicated
Bram Moolenaar <Bram@vim.org>
parents:
19384
diff
changeset
|
2564 rex.reg_buf = buf; |
|
08f4dc2ba716
patch 8.2.0260: several lines of code are duplicated
Bram Moolenaar <Bram@vim.org>
parents:
19384
diff
changeset
|
2565 rex.reg_win = win; |
|
08f4dc2ba716
patch 8.2.0260: several lines of code are duplicated
Bram Moolenaar <Bram@vim.org>
parents:
19384
diff
changeset
|
2566 rex.reg_firstlnum = lnum; |
|
08f4dc2ba716
patch 8.2.0260: several lines of code are duplicated
Bram Moolenaar <Bram@vim.org>
parents:
19384
diff
changeset
|
2567 rex.reg_maxline = rex.reg_buf->b_ml.ml_line_count - lnum; |
|
08f4dc2ba716
patch 8.2.0260: several lines of code are duplicated
Bram Moolenaar <Bram@vim.org>
parents:
19384
diff
changeset
|
2568 rex.reg_line_lbr = FALSE; |
|
08f4dc2ba716
patch 8.2.0260: several lines of code are duplicated
Bram Moolenaar <Bram@vim.org>
parents:
19384
diff
changeset
|
2569 rex.reg_ic = rmp->rmm_ic; |
|
08f4dc2ba716
patch 8.2.0260: several lines of code are duplicated
Bram Moolenaar <Bram@vim.org>
parents:
19384
diff
changeset
|
2570 rex.reg_icombine = FALSE; |
|
08f4dc2ba716
patch 8.2.0260: several lines of code are duplicated
Bram Moolenaar <Bram@vim.org>
parents:
19384
diff
changeset
|
2571 rex.reg_maxcol = rmp->rmm_maxcol; |
|
08f4dc2ba716
patch 8.2.0260: several lines of code are duplicated
Bram Moolenaar <Bram@vim.org>
parents:
19384
diff
changeset
|
2572 } |
|
08f4dc2ba716
patch 8.2.0260: several lines of code are duplicated
Bram Moolenaar <Bram@vim.org>
parents:
19384
diff
changeset
|
2573 |
|
18019
68fd5296bf73
patch 8.1.2005: the regexp.c file is too big
Bram Moolenaar <Bram@vim.org>
parents:
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diff
changeset
|
2574 #include "regexp_bt.c" |
|
68fd5296bf73
patch 8.1.2005: the regexp.c file is too big
Bram Moolenaar <Bram@vim.org>
parents:
17966
diff
changeset
|
2575 |
| 4444 | 2576 static regengine_T bt_regengine = |
| 2577 { | |
| 2578 bt_regcomp, | |
|
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66803af09906
updated for version 7.3.1149
Bram Moolenaar <bram@vim.org>
parents:
4770
diff
changeset
|
2579 bt_regfree, |
| 4444 | 2580 bt_regexec_nl, |
| 6328 | 2581 bt_regexec_multi, |
| 2582 (char_u *)"" | |
| 4444 | 2583 }; |
| 2584 | |
| 2585 #include "regexp_nfa.c" | |
| 2586 | |
| 2587 static regengine_T nfa_regengine = | |
| 2588 { | |
| 2589 nfa_regcomp, | |
|
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updated for version 7.3.1149
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diff
changeset
|
2590 nfa_regfree, |
| 4444 | 2591 nfa_regexec_nl, |
| 6328 | 2592 nfa_regexec_multi, |
| 2593 (char_u *)"" | |
| 4444 | 2594 }; |
| 2595 | |
|
18812
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
2596 // Which regexp engine to use? Needed for vim_regcomp(). |
|
d34ec6fe207d
patch 8.1.2394: using old C style comments
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parents:
18576
diff
changeset
|
2597 // Must match with 'regexpengine'. |
| 4444 | 2598 static int regexp_engine = 0; |
| 6328 | 2599 |
| 4444 | 2600 #ifdef DEBUG |
| 2601 static char_u regname[][30] = { | |
| 2602 "AUTOMATIC Regexp Engine", | |
|
4579
7a2be4a39423
updated for version 7.3.1037
Bram Moolenaar <bram@vim.org>
parents:
4505
diff
changeset
|
2603 "BACKTRACKING Regexp Engine", |
| 4444 | 2604 "NFA Regexp Engine" |
| 2605 }; | |
| 2606 #endif | |
| 2607 | |
| 2608 /* | |
| 2609 * Compile a regular expression into internal code. | |
|
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diff
changeset
|
2610 * Returns the program in allocated memory. |
|
66803af09906
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diff
changeset
|
2611 * Use vim_regfree() to free the memory. |
|
66803af09906
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diff
changeset
|
2612 * Returns NULL for an error. |
| 4444 | 2613 */ |
| 2614 regprog_T * | |
|
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Christian Brabandt <cb@256bit.org>
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7807
diff
changeset
|
2615 vim_regcomp(char_u *expr_arg, int re_flags) |
| 4444 | 2616 { |
| 2617 regprog_T *prog = NULL; | |
| 2618 char_u *expr = expr_arg; | |
|
18949
5c405689da3e
patch 8.2.0035: saving and restoring called_emsg is clumsy
Bram Moolenaar <Bram@vim.org>
parents:
18812
diff
changeset
|
2619 int called_emsg_before; |
| 4444 | 2620 |
| 2621 regexp_engine = p_re; | |
| 2622 | |
|
18812
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patch 8.1.2394: using old C style comments
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parents:
18576
diff
changeset
|
2623 // Check for prefix "\%#=", that sets the regexp engine |
| 4444 | 2624 if (STRNCMP(expr, "\\%#=", 4) == 0) |
| 2625 { | |
| 2626 int newengine = expr[4] - '0'; | |
| 2627 | |
| 2628 if (newengine == AUTOMATIC_ENGINE | |
| 2629 || newengine == BACKTRACKING_ENGINE | |
| 2630 || newengine == NFA_ENGINE) | |
| 2631 { | |
| 2632 regexp_engine = expr[4] - '0'; | |
| 2633 expr += 5; | |
| 2634 #ifdef DEBUG | |
|
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55ccc2d353bd
patch 8.1.0743: giving error messages is not flexible
Bram Moolenaar <Bram@vim.org>
parents:
15339
diff
changeset
|
2635 smsg("New regexp mode selected (%d): %s", |
| 5897 | 2636 regexp_engine, regname[newengine]); |
| 4444 | 2637 #endif |
| 2638 } | |
| 2639 else | |
| 2640 { | |
|
15470
55ccc2d353bd
patch 8.1.0743: giving error messages is not flexible
Bram Moolenaar <Bram@vim.org>
parents:
15339
diff
changeset
|
2641 emsg(_("E864: \\%#= can only be followed by 0, 1, or 2. The automatic engine will be used ")); |
| 4444 | 2642 regexp_engine = AUTOMATIC_ENGINE; |
| 2643 } | |
| 2644 } | |
|
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ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
2645 #ifdef DEBUG |
| 4444 | 2646 bt_regengine.expr = expr; |
| 2647 nfa_regengine.expr = expr; | |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
2648 #endif |
|
15856
e44b7caaf373
patch 8.1.0935: old regexp engine may use invalid buffer
Bram Moolenaar <Bram@vim.org>
parents:
15854
diff
changeset
|
2649 // reg_iswordc() uses rex.reg_buf |
|
e44b7caaf373
patch 8.1.0935: old regexp engine may use invalid buffer
Bram Moolenaar <Bram@vim.org>
parents:
15854
diff
changeset
|
2650 rex.reg_buf = curbuf; |
| 4444 | 2651 |
| 2652 /* | |
| 2653 * First try the NFA engine, unless backtracking was requested. | |
| 2654 */ | |
|
18949
5c405689da3e
patch 8.2.0035: saving and restoring called_emsg is clumsy
Bram Moolenaar <Bram@vim.org>
parents:
18812
diff
changeset
|
2655 called_emsg_before = called_emsg; |
| 4444 | 2656 if (regexp_engine != BACKTRACKING_ENGINE) |
|
13244
ac42c4b11dbc
patch 8.0.1496: clearing a pointer takes two lines
Christian Brabandt <cb@256bit.org>
parents:
12752
diff
changeset
|
2657 prog = nfa_regengine.regcomp(expr, |
| 6533 | 2658 re_flags + (regexp_engine == AUTOMATIC_ENGINE ? RE_AUTO : 0)); |
| 4444 | 2659 else |
| 2660 prog = bt_regengine.regcomp(expr, re_flags); | |
| 2661 | |
|
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patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
2662 // Check for error compiling regexp with initial engine. |
| 6328 | 2663 if (prog == NULL) |
| 4444 | 2664 { |
| 4460 | 2665 #ifdef BT_REGEXP_DEBUG_LOG |
|
23471
a7cdfc8e4b6e
patch 8.2.2278: falling back to old regexp engine can some patterns
Bram Moolenaar <Bram@vim.org>
parents:
22167
diff
changeset
|
2666 if (regexp_engine == BACKTRACKING_ENGINE) // debugging log for BT engine |
| 4444 | 2667 { |
| 2668 FILE *f; | |
| 4460 | 2669 f = fopen(BT_REGEXP_DEBUG_LOG_NAME, "a"); |
| 4444 | 2670 if (f) |
| 2671 { | |
|
4762
47906f888725
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Bram Moolenaar <bram@vim.org>
parents:
4760
diff
changeset
|
2672 fprintf(f, "Syntax error in \"%s\"\n", expr); |
| 4444 | 2673 fclose(f); |
| 2674 } | |
| 2675 else | |
|
15470
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patch 8.1.0743: giving error messages is not flexible
Bram Moolenaar <Bram@vim.org>
parents:
15339
diff
changeset
|
2676 semsg("(NFA) Could not open \"%s\" to write !!!", |
|
13244
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patch 8.0.1496: clearing a pointer takes two lines
Christian Brabandt <cb@256bit.org>
parents:
12752
diff
changeset
|
2677 BT_REGEXP_DEBUG_LOG_NAME); |
| 4444 | 2678 } |
| 2679 #endif | |
| 2680 /* | |
| 6328 | 2681 * If the NFA engine failed, try the backtracking engine. |
| 6533 | 2682 * The NFA engine also fails for patterns that it can't handle well |
| 2683 * but are still valid patterns, thus a retry should work. | |
|
15935
ff00d207cc5e
patch 8.1.0973: pattern with syntax error gives threee error messages
Bram Moolenaar <Bram@vim.org>
parents:
15860
diff
changeset
|
2684 * But don't try if an error message was given. |
| 6533 | 2685 */ |
|
18949
5c405689da3e
patch 8.2.0035: saving and restoring called_emsg is clumsy
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parents:
18812
diff
changeset
|
2686 if (regexp_engine == AUTOMATIC_ENGINE |
|
5c405689da3e
patch 8.2.0035: saving and restoring called_emsg is clumsy
Bram Moolenaar <Bram@vim.org>
parents:
18812
diff
changeset
|
2687 && called_emsg == called_emsg_before) |
| 6328 | 2688 { |
| 6533 | 2689 regexp_engine = BACKTRACKING_ENGINE; |
|
23471
a7cdfc8e4b6e
patch 8.2.2278: falling back to old regexp engine can some patterns
Bram Moolenaar <Bram@vim.org>
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22167
diff
changeset
|
2690 #ifdef FEAT_EVAL |
|
a7cdfc8e4b6e
patch 8.2.2278: falling back to old regexp engine can some patterns
Bram Moolenaar <Bram@vim.org>
parents:
22167
diff
changeset
|
2691 report_re_switch(expr); |
|
a7cdfc8e4b6e
patch 8.2.2278: falling back to old regexp engine can some patterns
Bram Moolenaar <Bram@vim.org>
parents:
22167
diff
changeset
|
2692 #endif |
|
4762
47906f888725
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parents:
4760
diff
changeset
|
2693 prog = bt_regengine.regcomp(expr, re_flags); |
| 6328 | 2694 } |
|
4762
47906f888725
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Bram Moolenaar <bram@vim.org>
parents:
4760
diff
changeset
|
2695 } |
| 4444 | 2696 |
| 6328 | 2697 if (prog != NULL) |
| 2698 { | |
|
18812
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patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
2699 // Store the info needed to call regcomp() again when the engine turns |
|
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
2700 // out to be very slow when executing it. |
| 6328 | 2701 prog->re_engine = regexp_engine; |
| 2702 prog->re_flags = re_flags; | |
| 2703 } | |
| 2704 | |
| 4444 | 2705 return prog; |
| 2706 } | |
| 2707 | |
| 2708 /* | |
|
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Bram Moolenaar <bram@vim.org>
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4770
diff
changeset
|
2709 * Free a compiled regexp program, returned by vim_regcomp(). |
|
66803af09906
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Bram Moolenaar <bram@vim.org>
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diff
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|
2710 */ |
|
66803af09906
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parents:
4770
diff
changeset
|
2711 void |
|
7833
c079097365f3
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Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
2712 vim_regfree(regprog_T *prog) |
|
4805
66803af09906
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diff
changeset
|
2713 { |
|
66803af09906
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diff
changeset
|
2714 if (prog != NULL) |
|
66803af09906
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parents:
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diff
changeset
|
2715 prog->engine->regfree(prog); |
|
66803af09906
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diff
changeset
|
2716 } |
|
66803af09906
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diff
changeset
|
2717 |
|
18019
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patch 8.1.2005: the regexp.c file is too big
Bram Moolenaar <Bram@vim.org>
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17966
diff
changeset
|
2718 #if defined(EXITFREE) || defined(PROTO) |
|
68fd5296bf73
patch 8.1.2005: the regexp.c file is too big
Bram Moolenaar <Bram@vim.org>
parents:
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diff
changeset
|
2719 void |
|
68fd5296bf73
patch 8.1.2005: the regexp.c file is too big
Bram Moolenaar <Bram@vim.org>
parents:
17966
diff
changeset
|
2720 free_regexp_stuff(void) |
|
68fd5296bf73
patch 8.1.2005: the regexp.c file is too big
Bram Moolenaar <Bram@vim.org>
parents:
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diff
changeset
|
2721 { |
|
68fd5296bf73
patch 8.1.2005: the regexp.c file is too big
Bram Moolenaar <Bram@vim.org>
parents:
17966
diff
changeset
|
2722 ga_clear(®stack); |
|
68fd5296bf73
patch 8.1.2005: the regexp.c file is too big
Bram Moolenaar <Bram@vim.org>
parents:
17966
diff
changeset
|
2723 ga_clear(&backpos); |
|
68fd5296bf73
patch 8.1.2005: the regexp.c file is too big
Bram Moolenaar <Bram@vim.org>
parents:
17966
diff
changeset
|
2724 vim_free(reg_tofree); |
|
68fd5296bf73
patch 8.1.2005: the regexp.c file is too big
Bram Moolenaar <Bram@vim.org>
parents:
17966
diff
changeset
|
2725 vim_free(reg_prev_sub); |
|
68fd5296bf73
patch 8.1.2005: the regexp.c file is too big
Bram Moolenaar <Bram@vim.org>
parents:
17966
diff
changeset
|
2726 } |
|
68fd5296bf73
patch 8.1.2005: the regexp.c file is too big
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17966
diff
changeset
|
2727 #endif |
|
68fd5296bf73
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parents:
17966
diff
changeset
|
2728 |
| 6328 | 2729 #ifdef FEAT_EVAL |
| 2730 static void | |
|
7833
c079097365f3
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Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
2731 report_re_switch(char_u *pat) |
| 6328 | 2732 { |
| 2733 if (p_verbose > 0) | |
| 2734 { | |
| 2735 verbose_enter(); | |
|
15543
dd725a8ab112
patch 8.1.0779: argument for message functions is inconsistent
Bram Moolenaar <Bram@vim.org>
parents:
15480
diff
changeset
|
2736 msg_puts(_("Switching to backtracking RE engine for pattern: ")); |
|
dd725a8ab112
patch 8.1.0779: argument for message functions is inconsistent
Bram Moolenaar <Bram@vim.org>
parents:
15480
diff
changeset
|
2737 msg_puts((char *)pat); |
| 6328 | 2738 verbose_leave(); |
| 2739 } | |
| 2740 } | |
| 2741 #endif | |
| 2742 | |
|
26336
a2e6da79274d
patch 8.2.3699: the +title feature adds a lot of #ifdef but little code
Bram Moolenaar <Bram@vim.org>
parents:
26161
diff
changeset
|
2743 #if defined(FEAT_X11) || defined(PROTO) |
|
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diff
changeset
|
2744 /* |
|
15306
7fff2d18e191
patch 8.1.0661: clipboard regexp might be used recursively
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parents:
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diff
changeset
|
2745 * Return whether "prog" is currently being executed. |
|
7fff2d18e191
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diff
changeset
|
2746 */ |
|
7fff2d18e191
patch 8.1.0661: clipboard regexp might be used recursively
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diff
changeset
|
2747 int |
|
7fff2d18e191
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Bram Moolenaar <Bram@vim.org>
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15211
diff
changeset
|
2748 regprog_in_use(regprog_T *prog) |
|
7fff2d18e191
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diff
changeset
|
2749 { |
|
7fff2d18e191
patch 8.1.0661: clipboard regexp might be used recursively
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diff
changeset
|
2750 return prog->re_in_use; |
|
7fff2d18e191
patch 8.1.0661: clipboard regexp might be used recursively
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diff
changeset
|
2751 } |
|
15555
d89c5b339c2a
patch 8.1.0785: depending on the configuration some functions are unused
Bram Moolenaar <Bram@vim.org>
parents:
15543
diff
changeset
|
2752 #endif |
|
15306
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changeset
|
2753 |
|
7fff2d18e191
patch 8.1.0661: clipboard regexp might be used recursively
Bram Moolenaar <Bram@vim.org>
parents:
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diff
changeset
|
2754 /* |
| 4444 | 2755 * Match a regexp against a string. |
| 2756 * "rmp->regprog" is a compiled regexp as returned by vim_regcomp(). | |
| 6375 | 2757 * Note: "rmp->regprog" may be freed and changed. |
| 4444 | 2758 * Uses curbuf for line count and 'iskeyword'. |
| 6328 | 2759 * When "nl" is TRUE consider a "\n" in "line" to be a line break. |
| 4444 | 2760 * |
| 2761 * Return TRUE if there is a match, FALSE if not. | |
| 2762 */ | |
| 6328 | 2763 static int |
|
11529
998d2cf59caa
patch 8.0.0647: syntax highlighting can make cause a freeze
Christian Brabandt <cb@256bit.org>
parents:
11527
diff
changeset
|
2764 vim_regexec_string( |
|
7833
c079097365f3
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Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
2765 regmatch_T *rmp, |
|
18812
d34ec6fe207d
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parents:
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diff
changeset
|
2766 char_u *line, // string to match against |
|
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
2767 colnr_T col, // column to start looking for match |
|
7833
c079097365f3
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Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
2768 int nl) |
| 6328 | 2769 { |
|
10245
d76ccdacb41e
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Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2770 int result; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2771 regexec_T rex_save; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2772 int rex_in_use_save = rex_in_use; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2773 |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
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14169
diff
changeset
|
2774 // Cannot use the same prog recursively, it contains state. |
|
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
2775 if (rmp->regprog->re_in_use) |
|
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
2776 { |
|
15470
55ccc2d353bd
patch 8.1.0743: giving error messages is not flexible
Bram Moolenaar <Bram@vim.org>
parents:
15339
diff
changeset
|
2777 emsg(_(e_recursive)); |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
2778 return FALSE; |
|
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
2779 } |
|
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
2780 rmp->regprog->re_in_use = TRUE; |
|
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
2781 |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2782 if (rex_in_use) |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
2783 // Being called recursively, save the state. |
|
10245
d76ccdacb41e
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Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2784 rex_save = rex; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2785 rex_in_use = TRUE; |
|
14354
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patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
2786 |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2787 rex.reg_startp = NULL; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2788 rex.reg_endp = NULL; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2789 rex.reg_startpos = NULL; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2790 rex.reg_endpos = NULL; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2791 |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2792 result = rmp->regprog->engine->regexec_nl(rmp, line, col, nl); |
|
14358
72d506d94f3f
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Christian Brabandt <cb@256bit.org>
parents:
14354
diff
changeset
|
2793 rmp->regprog->re_in_use = FALSE; |
| 6328 | 2794 |
|
18812
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
2795 // NFA engine aborted because it's very slow. |
| 6328 | 2796 if (rmp->regprog->re_engine == AUTOMATIC_ENGINE |
| 2797 && result == NFA_TOO_EXPENSIVE) | |
| 2798 { | |
| 2799 int save_p_re = p_re; | |
| 2800 int re_flags = rmp->regprog->re_flags; | |
| 2801 char_u *pat = vim_strsave(((nfa_regprog_T *)rmp->regprog)->pattern); | |
| 2802 | |
| 2803 p_re = BACKTRACKING_ENGINE; | |
| 2804 vim_regfree(rmp->regprog); | |
| 2805 if (pat != NULL) | |
| 2806 { | |
| 2807 #ifdef FEAT_EVAL | |
| 2808 report_re_switch(pat); | |
| 2809 #endif | |
| 2810 rmp->regprog = vim_regcomp(pat, re_flags); | |
| 2811 if (rmp->regprog != NULL) | |
|
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Christian Brabandt <cb@256bit.org>
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diff
changeset
|
2812 { |
|
72d506d94f3f
patch 8.1.0194: possibly use of NULL pointer
Christian Brabandt <cb@256bit.org>
parents:
14354
diff
changeset
|
2813 rmp->regprog->re_in_use = TRUE; |
| 6328 | 2814 result = rmp->regprog->engine->regexec_nl(rmp, line, col, nl); |
|
14358
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Christian Brabandt <cb@256bit.org>
parents:
14354
diff
changeset
|
2815 rmp->regprog->re_in_use = FALSE; |
|
72d506d94f3f
patch 8.1.0194: possibly use of NULL pointer
Christian Brabandt <cb@256bit.org>
parents:
14354
diff
changeset
|
2816 } |
| 6328 | 2817 vim_free(pat); |
| 2818 } | |
| 2819 | |
| 2820 p_re = save_p_re; | |
| 2821 } | |
|
10245
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commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2822 |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2823 rex_in_use = rex_in_use_save; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2824 if (rex_in_use) |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2825 rex = rex_save; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2826 |
| 6390 | 2827 return result > 0; |
| 6328 | 2828 } |
| 2829 | |
| 6375 | 2830 /* |
| 2831 * Note: "*prog" may be freed and changed. | |
| 6390 | 2832 * Return TRUE if there is a match, FALSE if not. |
| 6375 | 2833 */ |
| 2834 int | |
|
7833
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
2835 vim_regexec_prog( |
|
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
2836 regprog_T **prog, |
|
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
2837 int ignore_case, |
|
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
2838 char_u *line, |
|
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
2839 colnr_T col) |
| 6375 | 2840 { |
|
11529
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patch 8.0.0647: syntax highlighting can make cause a freeze
Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
2841 int r; |
|
998d2cf59caa
patch 8.0.0647: syntax highlighting can make cause a freeze
Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
2842 regmatch_T regmatch; |
| 6375 | 2843 |
| 2844 regmatch.regprog = *prog; | |
| 2845 regmatch.rm_ic = ignore_case; | |
|
11529
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Christian Brabandt <cb@256bit.org>
parents:
11527
diff
changeset
|
2846 r = vim_regexec_string(®match, line, col, FALSE); |
| 6375 | 2847 *prog = regmatch.regprog; |
| 2848 return r; | |
| 2849 } | |
| 2850 | |
| 2851 /* | |
| 2852 * Note: "rmp->regprog" may be freed and changed. | |
| 6390 | 2853 * Return TRUE if there is a match, FALSE if not. |
| 6375 | 2854 */ |
| 4444 | 2855 int |
|
7833
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Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
2856 vim_regexec(regmatch_T *rmp, char_u *line, colnr_T col) |
| 4444 | 2857 { |
|
11529
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patch 8.0.0647: syntax highlighting can make cause a freeze
Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
2858 return vim_regexec_string(rmp, line, col, FALSE); |
| 4444 | 2859 } |
| 2860 | |
| 2861 /* | |
| 2862 * Like vim_regexec(), but consider a "\n" in "line" to be a line break. | |
| 6375 | 2863 * Note: "rmp->regprog" may be freed and changed. |
| 6390 | 2864 * Return TRUE if there is a match, FALSE if not. |
| 4444 | 2865 */ |
| 2866 int | |
|
7833
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Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
2867 vim_regexec_nl(regmatch_T *rmp, char_u *line, colnr_T col) |
| 4444 | 2868 { |
|
11529
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Christian Brabandt <cb@256bit.org>
parents:
11527
diff
changeset
|
2869 return vim_regexec_string(rmp, line, col, TRUE); |
| 4444 | 2870 } |
| 2871 | |
| 2872 /* | |
| 2873 * Match a regexp against multiple lines. | |
|
14161
7cac4646c552
patch 8.1.0098: segfault when pattern with z() is very slow
Christian Brabandt <cb@256bit.org>
parents:
13286
diff
changeset
|
2874 * "rmp->regprog" must be a compiled regexp as returned by vim_regcomp(). |
|
7cac4646c552
patch 8.1.0098: segfault when pattern with z() is very slow
Christian Brabandt <cb@256bit.org>
parents:
13286
diff
changeset
|
2875 * Note: "rmp->regprog" may be freed and changed, even set to NULL. |
| 4444 | 2876 * Uses curbuf for line count and 'iskeyword'. |
| 2877 * | |
| 2878 * Return zero if there is no match. Return number of lines contained in the | |
| 2879 * match otherwise. | |
| 2880 */ | |
| 2881 long | |
|
7833
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
2882 vim_regexec_multi( |
|
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
2883 regmmatch_T *rmp, |
|
18812
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
2884 win_T *win, // window in which to search or NULL |
|
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
2885 buf_T *buf, // buffer in which to search |
|
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
2886 linenr_T lnum, // nr of line to start looking for match |
|
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
2887 colnr_T col, // column to start looking for match |
|
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
2888 proftime_T *tm, // timeout limit or NULL |
|
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
2889 int *timed_out) // flag is set when timeout limit reached |
| 4444 | 2890 { |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2891 int result; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2892 regexec_T rex_save; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2893 int rex_in_use_save = rex_in_use; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2894 |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
2895 // Cannot use the same prog recursively, it contains state. |
|
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
2896 if (rmp->regprog->re_in_use) |
|
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
2897 { |
|
15470
55ccc2d353bd
patch 8.1.0743: giving error messages is not flexible
Bram Moolenaar <Bram@vim.org>
parents:
15339
diff
changeset
|
2898 emsg(_(e_recursive)); |
|
14354
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patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
2899 return FALSE; |
|
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
2900 } |
|
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
2901 rmp->regprog->re_in_use = TRUE; |
|
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
2902 |
|
10245
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Christian Brabandt <cb@256bit.org>
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10187
diff
changeset
|
2903 if (rex_in_use) |
|
18812
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parents:
18576
diff
changeset
|
2904 // Being called recursively, save the state. |
|
10245
d76ccdacb41e
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Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2905 rex_save = rex; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2906 rex_in_use = TRUE; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
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10187
diff
changeset
|
2907 |
|
11521
578df034735d
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Christian Brabandt <cb@256bit.org>
parents:
11482
diff
changeset
|
2908 result = rmp->regprog->engine->regexec_multi( |
|
578df034735d
patch 8.0.0643: when a pattern search is slow Vim becomes unusable
Christian Brabandt <cb@256bit.org>
parents:
11482
diff
changeset
|
2909 rmp, win, buf, lnum, col, tm, timed_out); |
|
14358
72d506d94f3f
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Christian Brabandt <cb@256bit.org>
parents:
14354
diff
changeset
|
2910 rmp->regprog->re_in_use = FALSE; |
| 6328 | 2911 |
|
18812
d34ec6fe207d
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Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
2912 // NFA engine aborted because it's very slow. |
| 6328 | 2913 if (rmp->regprog->re_engine == AUTOMATIC_ENGINE |
| 2914 && result == NFA_TOO_EXPENSIVE) | |
| 2915 { | |
| 2916 int save_p_re = p_re; | |
| 2917 int re_flags = rmp->regprog->re_flags; | |
| 2918 char_u *pat = vim_strsave(((nfa_regprog_T *)rmp->regprog)->pattern); | |
| 2919 | |
| 2920 p_re = BACKTRACKING_ENGINE; | |
| 2921 vim_regfree(rmp->regprog); | |
| 2922 if (pat != NULL) | |
| 2923 { | |
| 2924 #ifdef FEAT_EVAL | |
| 2925 report_re_switch(pat); | |
| 2926 #endif | |
|
14169
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Christian Brabandt <cb@256bit.org>
parents:
14161
diff
changeset
|
2927 #ifdef FEAT_SYN_HL |
|
14161
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parents:
13286
diff
changeset
|
2928 // checking for \z misuse was already done when compiling for NFA, |
|
7cac4646c552
patch 8.1.0098: segfault when pattern with z() is very slow
Christian Brabandt <cb@256bit.org>
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13286
diff
changeset
|
2929 // allow all here |
|
7cac4646c552
patch 8.1.0098: segfault when pattern with z() is very slow
Christian Brabandt <cb@256bit.org>
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13286
diff
changeset
|
2930 reg_do_extmatch = REX_ALL; |
|
14169
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Christian Brabandt <cb@256bit.org>
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14161
diff
changeset
|
2931 #endif |
| 6328 | 2932 rmp->regprog = vim_regcomp(pat, re_flags); |
|
14169
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Christian Brabandt <cb@256bit.org>
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14161
diff
changeset
|
2933 #ifdef FEAT_SYN_HL |
|
14161
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Christian Brabandt <cb@256bit.org>
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13286
diff
changeset
|
2934 reg_do_extmatch = 0; |
|
14169
42a9178374d1
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Christian Brabandt <cb@256bit.org>
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14161
diff
changeset
|
2935 #endif |
|
14161
7cac4646c552
patch 8.1.0098: segfault when pattern with z() is very slow
Christian Brabandt <cb@256bit.org>
parents:
13286
diff
changeset
|
2936 |
| 6328 | 2937 if (rmp->regprog != NULL) |
|
14358
72d506d94f3f
patch 8.1.0194: possibly use of NULL pointer
Christian Brabandt <cb@256bit.org>
parents:
14354
diff
changeset
|
2938 { |
|
72d506d94f3f
patch 8.1.0194: possibly use of NULL pointer
Christian Brabandt <cb@256bit.org>
parents:
14354
diff
changeset
|
2939 rmp->regprog->re_in_use = TRUE; |
| 6328 | 2940 result = rmp->regprog->engine->regexec_multi( |
|
11521
578df034735d
patch 8.0.0643: when a pattern search is slow Vim becomes unusable
Christian Brabandt <cb@256bit.org>
parents:
11482
diff
changeset
|
2941 rmp, win, buf, lnum, col, tm, timed_out); |
|
14358
72d506d94f3f
patch 8.1.0194: possibly use of NULL pointer
Christian Brabandt <cb@256bit.org>
parents:
14354
diff
changeset
|
2942 rmp->regprog->re_in_use = FALSE; |
|
72d506d94f3f
patch 8.1.0194: possibly use of NULL pointer
Christian Brabandt <cb@256bit.org>
parents:
14354
diff
changeset
|
2943 } |
| 6328 | 2944 vim_free(pat); |
| 2945 } | |
| 2946 p_re = save_p_re; | |
| 2947 } | |
| 2948 | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2949 rex_in_use = rex_in_use_save; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2950 if (rex_in_use) |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2951 rex = rex_save; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2952 |
| 6390 | 2953 return result <= 0 ? 0 : result; |
| 4444 | 2954 } |