Mercurial > vim
annotate src/regexp.c @ 20992:7ee565134d4a v8.2.1047
patch 8.2.1047: Vim9: script cannot use line continuation like :def function
Commit: https://github.com/vim/vim/commit/5409f5d8c95007216ae1190565a7a8ee9ebd7100
Author: Bram Moolenaar <Bram@vim.org>
Date: Wed Jun 24 18:37:35 2020 +0200
patch 8.2.1047: Vim9: script cannot use line continuation like :def function
Problem: Vim9: script cannot use line continuation like in a :def function.
Solution: Pass the getline function pointer to the eval() functions. Use it
for addition and multiplication operators.
| author | Bram Moolenaar <Bram@vim.org> |
|---|---|
| date | Wed, 24 Jun 2020 18:45:04 +0200 |
| parents | 9064044fd4f6 |
| children | 3af71cbcfdbe |
| 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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6 // By default: do not create debugging logs or files related to regular |
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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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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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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"); |
| 4444 | 77 static char_u e_unmatchedpp[] = N_("E53: Unmatched %s%%("); |
| 78 static char_u e_unmatchedp[] = N_("E54: Unmatched %s("); | |
| 79 static char_u e_unmatchedpar[] = N_("E55: Unmatched %s)"); | |
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80 #ifdef FEAT_SYN_HL |
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81 static char_u e_z_not_allowed[] = N_("E66: \\z( not allowed here"); |
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82 static char_u e_z1_not_allowed[] = N_("E67: \\z1 - \\z9 not allowed here"); |
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83 #endif |
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84 static char_u e_missing_sb[] = N_("E69: Missing ] after %s%%["); |
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85 static char_u e_empty_sb[] = N_("E70: Empty %s%%[]"); |
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86 static char_u e_recursive[] = N_("E956: Cannot use pattern recursively"); |
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87 |
| 7 | 88 #define NOT_MULTI 0 |
| 89 #define MULTI_ONE 1 | |
| 90 #define MULTI_MULT 2 | |
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91 |
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92 // return values for regmatch() |
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93 #define RA_FAIL 1 // something failed, abort |
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94 #define RA_CONT 2 // continue in inner loop |
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95 #define RA_BREAK 3 // break inner loop |
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96 #define RA_MATCH 4 // successful match |
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97 #define RA_NOMATCH 5 // didn't match |
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98 |
| 7 | 99 /* |
| 100 * Return NOT_MULTI if c is not a "multi" operator. | |
| 101 * Return MULTI_ONE if c is a single "multi" operator. | |
| 102 * Return MULTI_MULT if c is a multi "multi" operator. | |
| 103 */ | |
| 104 static int | |
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105 re_multi_type(int c) |
| 7 | 106 { |
| 107 if (c == Magic('@') || c == Magic('=') || c == Magic('?')) | |
| 108 return MULTI_ONE; | |
| 109 if (c == Magic('*') || c == Magic('+') || c == Magic('{')) | |
| 110 return MULTI_MULT; | |
| 111 return NOT_MULTI; | |
| 112 } | |
| 113 | |
| 359 | 114 static char_u *reg_prev_sub = NULL; |
| 115 | |
| 7 | 116 /* |
| 117 * REGEXP_INRANGE contains all characters which are always special in a [] | |
| 118 * range after '\'. | |
| 119 * REGEXP_ABBR contains all characters which act as abbreviations after '\'. | |
| 120 * These are: | |
| 121 * \n - New line (NL). | |
| 122 * \r - Carriage Return (CR). | |
| 123 * \t - Tab (TAB). | |
| 124 * \e - Escape (ESC). | |
| 125 * \b - Backspace (Ctrl_H). | |
| 24 | 126 * \d - Character code in decimal, eg \d123 |
| 127 * \o - Character code in octal, eg \o80 | |
| 128 * \x - Character code in hex, eg \x4a | |
| 129 * \u - Multibyte character code, eg \u20ac | |
| 130 * \U - Long multibyte character code, eg \U12345678 | |
| 7 | 131 */ |
| 132 static char_u REGEXP_INRANGE[] = "]^-n\\"; | |
| 24 | 133 static char_u REGEXP_ABBR[] = "nrtebdoxuU"; |
| 7 | 134 |
| 135 /* | |
| 136 * Translate '\x' to its control character, except "\n", which is Magic. | |
| 137 */ | |
| 138 static int | |
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139 backslash_trans(int c) |
| 7 | 140 { |
| 141 switch (c) | |
| 142 { | |
| 143 case 'r': return CAR; | |
| 144 case 't': return TAB; | |
| 145 case 'e': return ESC; | |
| 146 case 'b': return BS; | |
| 147 } | |
| 148 return c; | |
| 149 } | |
| 150 | |
| 151 /* | |
| 167 | 152 * Check for a character class name "[:name:]". "pp" points to the '['. |
| 7 | 153 * Returns one of the CLASS_ items. CLASS_NONE means that no item was |
| 154 * recognized. Otherwise "pp" is advanced to after the item. | |
| 155 */ | |
| 156 static int | |
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157 get_char_class(char_u **pp) |
| 7 | 158 { |
| 159 static const char *(class_names[]) = | |
| 160 { | |
| 161 "alnum:]", | |
| 162 #define CLASS_ALNUM 0 | |
| 163 "alpha:]", | |
| 164 #define CLASS_ALPHA 1 | |
| 165 "blank:]", | |
| 166 #define CLASS_BLANK 2 | |
| 167 "cntrl:]", | |
| 168 #define CLASS_CNTRL 3 | |
| 169 "digit:]", | |
| 170 #define CLASS_DIGIT 4 | |
| 171 "graph:]", | |
| 172 #define CLASS_GRAPH 5 | |
| 173 "lower:]", | |
| 174 #define CLASS_LOWER 6 | |
| 175 "print:]", | |
| 176 #define CLASS_PRINT 7 | |
| 177 "punct:]", | |
| 178 #define CLASS_PUNCT 8 | |
| 179 "space:]", | |
| 180 #define CLASS_SPACE 9 | |
| 181 "upper:]", | |
| 182 #define CLASS_UPPER 10 | |
| 183 "xdigit:]", | |
| 184 #define CLASS_XDIGIT 11 | |
| 185 "tab:]", | |
| 186 #define CLASS_TAB 12 | |
| 187 "return:]", | |
| 188 #define CLASS_RETURN 13 | |
| 189 "backspace:]", | |
| 190 #define CLASS_BACKSPACE 14 | |
| 191 "escape:]", | |
| 192 #define CLASS_ESCAPE 15 | |
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193 "ident:]", |
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194 #define CLASS_IDENT 16 |
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195 "keyword:]", |
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196 #define CLASS_KEYWORD 17 |
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197 "fname:]", |
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198 #define CLASS_FNAME 18 |
| 7 | 199 }; |
| 200 #define CLASS_NONE 99 | |
| 201 int i; | |
| 202 | |
| 203 if ((*pp)[1] == ':') | |
| 204 { | |
| 1877 | 205 for (i = 0; i < (int)(sizeof(class_names) / sizeof(*class_names)); ++i) |
| 7 | 206 if (STRNCMP(*pp + 2, class_names[i], STRLEN(class_names[i])) == 0) |
| 207 { | |
| 208 *pp += STRLEN(class_names[i]) + 2; | |
| 209 return i; | |
| 210 } | |
| 211 } | |
| 212 return CLASS_NONE; | |
| 213 } | |
| 214 | |
| 215 /* | |
| 216 * Specific version of character class functions. | |
| 217 * Using a table to keep this fast. | |
| 218 */ | |
| 219 static short class_tab[256]; | |
| 220 | |
| 221 #define RI_DIGIT 0x01 | |
| 222 #define RI_HEX 0x02 | |
| 223 #define RI_OCTAL 0x04 | |
| 224 #define RI_WORD 0x08 | |
| 225 #define RI_HEAD 0x10 | |
| 226 #define RI_ALPHA 0x20 | |
| 227 #define RI_LOWER 0x40 | |
| 228 #define RI_UPPER 0x80 | |
| 229 #define RI_WHITE 0x100 | |
| 230 | |
| 231 static void | |
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232 init_class_tab(void) |
| 7 | 233 { |
| 234 int i; | |
| 235 static int done = FALSE; | |
| 236 | |
| 237 if (done) | |
| 238 return; | |
| 239 | |
| 240 for (i = 0; i < 256; ++i) | |
| 241 { | |
| 242 if (i >= '0' && i <= '7') | |
| 243 class_tab[i] = RI_DIGIT + RI_HEX + RI_OCTAL + RI_WORD; | |
| 244 else if (i >= '8' && i <= '9') | |
| 245 class_tab[i] = RI_DIGIT + RI_HEX + RI_WORD; | |
| 246 else if (i >= 'a' && i <= 'f') | |
| 247 class_tab[i] = RI_HEX + RI_WORD + RI_HEAD + RI_ALPHA + RI_LOWER; | |
| 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_LOWER; | |
| 255 else if (i >= 'A' && i <= 'F') | |
| 256 class_tab[i] = RI_HEX + RI_WORD + RI_HEAD + RI_ALPHA + RI_UPPER; | |
| 257 #ifdef EBCDIC | |
| 258 else if ((i >= 'G' && i <= 'I') || ( i >= 'J' && i <= 'R') | |
| 259 || (i >= 'S' && i <= 'Z')) | |
| 260 #else | |
| 261 else if (i >= 'G' && i <= 'Z') | |
| 262 #endif | |
| 263 class_tab[i] = RI_WORD + RI_HEAD + RI_ALPHA + RI_UPPER; | |
| 264 else if (i == '_') | |
| 265 class_tab[i] = RI_WORD + RI_HEAD; | |
| 266 else | |
| 267 class_tab[i] = 0; | |
| 268 } | |
| 269 class_tab[' '] |= RI_WHITE; | |
| 270 class_tab['\t'] |= RI_WHITE; | |
| 271 done = TRUE; | |
| 272 } | |
| 273 | |
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274 #define ri_digit(c) (c < 0x100 && (class_tab[c] & RI_DIGIT)) |
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275 #define ri_hex(c) (c < 0x100 && (class_tab[c] & RI_HEX)) |
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276 #define ri_octal(c) (c < 0x100 && (class_tab[c] & RI_OCTAL)) |
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277 #define ri_word(c) (c < 0x100 && (class_tab[c] & RI_WORD)) |
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278 #define ri_head(c) (c < 0x100 && (class_tab[c] & RI_HEAD)) |
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279 #define ri_alpha(c) (c < 0x100 && (class_tab[c] & RI_ALPHA)) |
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280 #define ri_lower(c) (c < 0x100 && (class_tab[c] & RI_LOWER)) |
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281 #define ri_upper(c) (c < 0x100 && (class_tab[c] & RI_UPPER)) |
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282 #define ri_white(c) (c < 0x100 && (class_tab[c] & RI_WHITE)) |
| 7 | 283 |
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284 // flags for regflags |
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285 #define RF_ICASE 1 // ignore case |
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286 #define RF_NOICASE 2 // don't ignore case |
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287 #define RF_HASNL 4 // can match a NL |
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288 #define RF_ICOMBINE 8 // ignore combining characters |
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289 #define RF_LOOKBH 16 // uses "\@<=" or "\@<!" |
| 7 | 290 |
| 291 /* | |
| 292 * Global work variables for vim_regcomp(). | |
| 293 */ | |
| 294 | |
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295 static char_u *regparse; // Input-scan pointer. |
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296 static int regnpar; // () count. |
| 7 | 297 #ifdef FEAT_SYN_HL |
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298 static int regnzpar; // \z() count. |
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299 static int re_has_z; // \z item detected |
| 7 | 300 #endif |
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301 static unsigned regflags; // RF_ flags for prog |
| 7 | 302 #if defined(FEAT_SYN_HL) || defined(PROTO) |
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303 static int had_eol; // TRUE when EOL found by vim_regcomp() |
| 7 | 304 #endif |
| 305 | |
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306 static int reg_magic; // magicness of the pattern: |
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307 #define MAGIC_NONE 1 // "\V" very unmagic |
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308 #define MAGIC_OFF 2 // "\M" or 'magic' off |
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309 #define MAGIC_ON 3 // "\m" or 'magic' |
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310 #define MAGIC_ALL 4 // "\v" very magic |
| 7 | 311 |
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312 static int reg_string; // matching with a string instead of a buffer |
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313 // line |
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314 static int reg_strict; // "[abc" is illegal |
| 7 | 315 |
| 316 /* | |
| 317 * META contains all characters that may be magic, except '^' and '$'. | |
| 318 */ | |
| 319 | |
| 320 #ifdef EBCDIC | |
| 321 static char_u META[] = "%&()*+.123456789<=>?@ACDFHIKLMOPSUVWX[_acdfhiklmnopsuvwxz{|~"; | |
| 322 #else | |
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323 // META[] is used often enough to justify turning it into a table. |
| 7 | 324 static char_u META_flags[] = { |
| 325 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
| 326 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
|
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327 // % & ( ) * + . |
| 7 | 328 0, 0, 0, 0, 0, 1, 1, 0, 1, 1, 1, 1, 0, 0, 1, 0, |
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329 // 1 2 3 4 5 6 7 8 9 < = > ? |
| 7 | 330 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 1, 1, |
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331 // @ A C D F H I K L M O |
| 7 | 332 1, 1, 0, 1, 1, 0, 1, 0, 1, 1, 0, 1, 1, 1, 0, 1, |
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333 // P S U V W X Z [ _ |
| 7 | 334 1, 0, 0, 1, 0, 1, 1, 1, 1, 0, 1, 1, 0, 0, 0, 1, |
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335 // a c d f h i k l m n o |
| 7 | 336 0, 1, 0, 1, 1, 0, 1, 0, 1, 1, 0, 1, 1, 1, 1, 1, |
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337 // p s u v w x z { | ~ |
| 7 | 338 1, 0, 0, 1, 0, 1, 1, 1, 1, 0, 1, 1, 1, 0, 1 |
| 339 }; | |
| 340 #endif | |
| 341 | |
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342 static int curchr; // currently parsed character |
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343 // Previous character. Note: prevchr is sometimes -1 when we are not at the |
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344 // start, eg in /[ ^I]^ the pattern was never found even if it existed, |
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345 // because ^ was taken to be magic -- webb |
| 4444 | 346 static int prevchr; |
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347 static int prevprevchr; // previous-previous character |
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348 static int nextchr; // used for ungetchr() |
| 7 | 349 |
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350 // arguments for reg() |
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351 #define REG_NOPAREN 0 // toplevel reg() |
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352 #define REG_PAREN 1 // \(\) |
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353 #define REG_ZPAREN 2 // \z(\) |
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354 #define REG_NPAREN 3 // \%(\) |
| 7 | 355 |
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356 typedef struct |
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357 { |
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358 char_u *regparse; |
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359 int prevchr_len; |
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360 int curchr; |
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361 int prevchr; |
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362 int prevprevchr; |
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363 int nextchr; |
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364 int at_start; |
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365 int prev_at_start; |
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366 int regnpar; |
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367 } parse_state_T; |
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368 |
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369 static void initchr(char_u *); |
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370 static int getchr(void); |
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371 static void skipchr_keepstart(void); |
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372 static int peekchr(void); |
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373 static void skipchr(void); |
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374 static void ungetchr(void); |
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375 static long gethexchrs(int maxinputlen); |
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376 static long getoctchrs(void); |
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377 static long getdecchrs(void); |
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378 static int coll_get_char(void); |
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379 static int prog_magic_wrong(void); |
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380 static int cstrncmp(char_u *s1, char_u *s2, int *n); |
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381 static char_u *cstrchr(char_u *, int); |
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382 static int re_mult_next(char *what); |
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383 static int reg_iswordc(int); |
| 7 | 384 |
| 4444 | 385 static regengine_T bt_regengine; |
| 386 static regengine_T nfa_regengine; | |
| 387 | |
| 7 | 388 /* |
| 389 * Return TRUE if compiled regular expression "prog" can match a line break. | |
| 390 */ | |
| 391 int | |
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392 re_multiline(regprog_T *prog) |
| 7 | 393 { |
| 394 return (prog->regflags & RF_HASNL); | |
| 395 } | |
| 396 | |
| 397 /* | |
| 167 | 398 * Check for an equivalence class name "[=a=]". "pp" points to the '['. |
| 399 * Returns a character representing the class. Zero means that no item was | |
| 400 * recognized. Otherwise "pp" is advanced to after the item. | |
| 401 */ | |
| 402 static int | |
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403 get_equi_class(char_u **pp) |
| 167 | 404 { |
| 405 int c; | |
| 406 int l = 1; | |
| 407 char_u *p = *pp; | |
| 408 | |
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409 if (p[1] == '=' && p[2] != NUL) |
| 167 | 410 { |
| 411 if (has_mbyte) | |
| 474 | 412 l = (*mb_ptr2len)(p + 2); |
| 167 | 413 if (p[l + 2] == '=' && p[l + 3] == ']') |
| 414 { | |
| 415 if (has_mbyte) | |
| 416 c = mb_ptr2char(p + 2); | |
| 417 else | |
| 418 c = p[2]; | |
| 419 *pp += l + 4; | |
| 420 return c; | |
| 421 } | |
| 422 } | |
| 423 return 0; | |
| 424 } | |
| 425 | |
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426 #ifdef EBCDIC |
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427 /* |
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428 * Table for equivalence class "c". (IBM-1047) |
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429 */ |
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430 static char *EQUIVAL_CLASS_C[16] = { |
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431 "A\x62\x63\x64\x65\x66\x67", |
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432 "C\x68", |
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433 "E\x71\x72\x73\x74", |
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434 "I\x75\x76\x77\x78", |
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435 "N\x69", |
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436 "O\xEB\xEC\xED\xEE\xEF\x80", |
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437 "U\xFB\xFC\xFD\xFE", |
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438 "Y\xBA", |
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439 "a\x42\x43\x44\x45\x46\x47", |
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440 "c\x48", |
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441 "e\x51\x52\x53\x54", |
|
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442 "i\x55\x56\x57\x58", |
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443 "n\x49", |
|
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444 "o\xCB\xCC\xCD\xCE\xCF\x70", |
|
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445 "u\xDB\xDC\xDD\xDE", |
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446 "y\x8D\xDF", |
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447 }; |
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448 #endif |
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449 |
| 167 | 450 /* |
| 451 * Check for a collating element "[.a.]". "pp" points to the '['. | |
| 452 * Returns a character. Zero means that no item was recognized. Otherwise | |
| 453 * "pp" is advanced to after the item. | |
| 454 * Currently only single characters are recognized! | |
| 455 */ | |
| 456 static int | |
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457 get_coll_element(char_u **pp) |
| 167 | 458 { |
| 459 int c; | |
| 460 int l = 1; | |
| 461 char_u *p = *pp; | |
| 462 | |
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463 if (p[0] != NUL && p[1] == '.' && p[2] != NUL) |
| 167 | 464 { |
| 465 if (has_mbyte) | |
| 474 | 466 l = (*mb_ptr2len)(p + 2); |
| 167 | 467 if (p[l + 2] == '.' && p[l + 3] == ']') |
| 468 { | |
| 469 if (has_mbyte) | |
| 470 c = mb_ptr2char(p + 2); | |
| 471 else | |
| 472 c = p[2]; | |
| 473 *pp += l + 4; | |
| 474 return c; | |
| 475 } | |
| 476 } | |
| 477 return 0; | |
| 478 } | |
| 479 | |
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480 static int reg_cpo_lit; // 'cpoptions' contains 'l' flag |
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481 static int reg_cpo_bsl; // 'cpoptions' contains '\' flag |
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482 |
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483 static void |
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484 get_cpo_flags(void) |
|
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485 { |
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486 reg_cpo_lit = vim_strchr(p_cpo, CPO_LITERAL) != NULL; |
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487 reg_cpo_bsl = vim_strchr(p_cpo, CPO_BACKSL) != NULL; |
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488 } |
| 167 | 489 |
| 490 /* | |
| 491 * Skip over a "[]" range. | |
| 492 * "p" must point to the character after the '['. | |
| 493 * The returned pointer is on the matching ']', or the terminating NUL. | |
| 494 */ | |
| 495 static char_u * | |
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496 skip_anyof(char_u *p) |
| 167 | 497 { |
| 498 int l; | |
| 499 | |
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500 if (*p == '^') // Complement of range. |
| 167 | 501 ++p; |
| 502 if (*p == ']' || *p == '-') | |
| 503 ++p; | |
| 504 while (*p != NUL && *p != ']') | |
| 505 { | |
| 474 | 506 if (has_mbyte && (l = (*mb_ptr2len)(p)) > 1) |
| 167 | 507 p += l; |
| 508 else | |
| 509 if (*p == '-') | |
| 510 { | |
| 511 ++p; | |
| 512 if (*p != ']' && *p != NUL) | |
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513 MB_PTR_ADV(p); |
| 167 | 514 } |
| 515 else if (*p == '\\' | |
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516 && !reg_cpo_bsl |
| 167 | 517 && (vim_strchr(REGEXP_INRANGE, p[1]) != NULL |
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518 || (!reg_cpo_lit && vim_strchr(REGEXP_ABBR, p[1]) != NULL))) |
| 167 | 519 p += 2; |
| 520 else if (*p == '[') | |
| 521 { | |
| 522 if (get_char_class(&p) == CLASS_NONE | |
| 523 && get_equi_class(&p) == 0 | |
| 6830 | 524 && get_coll_element(&p) == 0 |
| 525 && *p != NUL) | |
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526 ++p; // it is not a class name and not NUL |
| 167 | 527 } |
| 528 else | |
| 529 ++p; | |
| 530 } | |
| 531 | |
| 532 return p; | |
| 533 } | |
| 534 | |
| 535 /* | |
| 7 | 536 * Skip past regular expression. |
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537 * Stop at end of "startp" or where "delim" is found ('/', '?', etc). |
| 7 | 538 * Take care of characters with a backslash in front of it. |
| 539 * Skip strings inside [ and ]. | |
| 540 */ | |
| 541 char_u * | |
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542 skip_regexp( |
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543 char_u *startp, |
|
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544 int delim, |
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545 int magic) |
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546 { |
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547 return skip_regexp_ex(startp, delim, magic, NULL, NULL); |
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548 } |
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549 |
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550 /* |
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551 * Call skip_regexp() and when the delimiter does not match give an error and |
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552 * return NULL. |
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553 */ |
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554 char_u * |
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555 skip_regexp_err( |
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556 char_u *startp, |
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557 int delim, |
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558 int magic) |
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559 { |
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560 char_u *p = skip_regexp(startp, delim, magic); |
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561 |
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562 if (*p != delim) |
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563 { |
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564 semsg(_("E654: missing delimiter after search pattern: %s"), startp); |
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565 return NULL; |
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566 } |
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567 return p; |
|
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568 } |
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569 |
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570 /* |
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571 * skip_regexp() with extra arguments: |
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572 * When "newp" is not NULL and "dirc" is '?', make an allocated copy of the |
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573 * expression and change "\?" to "?". If "*newp" is not NULL the expression |
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574 * is changed in-place. |
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575 * If a "\?" is changed to "?" then "dropped" is incremented, unless NULL. |
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576 */ |
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577 char_u * |
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578 skip_regexp_ex( |
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579 char_u *startp, |
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580 int dirc, |
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581 int magic, |
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582 char_u **newp, |
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583 int *dropped) |
| 7 | 584 { |
| 585 int mymagic; | |
| 586 char_u *p = startp; | |
| 587 | |
| 588 if (magic) | |
| 589 mymagic = MAGIC_ON; | |
| 590 else | |
| 591 mymagic = MAGIC_OFF; | |
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592 get_cpo_flags(); |
| 7 | 593 |
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594 for (; p[0] != NUL; MB_PTR_ADV(p)) |
| 7 | 595 { |
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596 if (p[0] == dirc) // found end of regexp |
| 7 | 597 break; |
| 598 if ((p[0] == '[' && mymagic >= MAGIC_ON) | |
| 599 || (p[0] == '\\' && p[1] == '[' && mymagic <= MAGIC_OFF)) | |
| 600 { | |
| 601 p = skip_anyof(p + 1); | |
| 602 if (p[0] == NUL) | |
| 603 break; | |
| 604 } | |
| 605 else if (p[0] == '\\' && p[1] != NUL) | |
| 606 { | |
| 607 if (dirc == '?' && newp != NULL && p[1] == '?') | |
| 608 { | |
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609 // change "\?" to "?", make a copy first. |
| 7 | 610 if (*newp == NULL) |
| 611 { | |
| 612 *newp = vim_strsave(startp); | |
| 613 if (*newp != NULL) | |
| 614 p = *newp + (p - startp); | |
| 615 } | |
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616 if (dropped != NULL) |
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617 ++*dropped; |
| 7 | 618 if (*newp != NULL) |
| 1621 | 619 STRMOVE(p, p + 1); |
| 7 | 620 else |
| 621 ++p; | |
| 622 } | |
| 623 else | |
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624 ++p; // skip next character |
| 7 | 625 if (*p == 'v') |
| 626 mymagic = MAGIC_ALL; | |
| 627 else if (*p == 'V') | |
| 628 mymagic = MAGIC_NONE; | |
| 629 } | |
| 630 } | |
| 631 return p; | |
| 632 } | |
| 633 | |
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634 /* |
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635 * Functions for getting characters from the regexp input. |
| 7 | 636 */ |
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637 static int prevchr_len; // byte length of previous char |
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638 static int at_start; // True when on the first character |
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639 static int prev_at_start; // True when on the second character |
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640 |
| 7 | 641 /* |
| 4444 | 642 * Start parsing at "str". |
| 643 */ | |
| 7 | 644 static void |
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645 initchr(char_u *str) |
| 7 | 646 { |
| 647 regparse = str; | |
| 648 prevchr_len = 0; | |
| 649 curchr = prevprevchr = prevchr = nextchr = -1; | |
| 650 at_start = TRUE; | |
| 651 prev_at_start = FALSE; | |
| 652 } | |
| 653 | |
| 4444 | 654 /* |
|
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655 * Save the current parse state, so that it can be restored and parsing |
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656 * starts in the same state again. |
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657 */ |
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658 static void |
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659 save_parse_state(parse_state_T *ps) |
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660 { |
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661 ps->regparse = regparse; |
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662 ps->prevchr_len = prevchr_len; |
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663 ps->curchr = curchr; |
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664 ps->prevchr = prevchr; |
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665 ps->prevprevchr = prevprevchr; |
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666 ps->nextchr = nextchr; |
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667 ps->at_start = at_start; |
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668 ps->prev_at_start = prev_at_start; |
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669 ps->regnpar = regnpar; |
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670 } |
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671 |
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672 /* |
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673 * Restore a previously saved parse state. |
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674 */ |
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675 static void |
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676 restore_parse_state(parse_state_T *ps) |
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677 { |
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678 regparse = ps->regparse; |
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679 prevchr_len = ps->prevchr_len; |
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680 curchr = ps->curchr; |
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681 prevchr = ps->prevchr; |
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682 prevprevchr = ps->prevprevchr; |
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683 nextchr = ps->nextchr; |
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684 at_start = ps->at_start; |
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685 prev_at_start = ps->prev_at_start; |
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686 regnpar = ps->regnpar; |
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687 } |
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688 |
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689 |
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690 /* |
| 4444 | 691 * Get the next character without advancing. |
| 692 */ | |
| 7 | 693 static int |
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694 peekchr(void) |
| 7 | 695 { |
| 167 | 696 static int after_slash = FALSE; |
| 697 | |
| 7 | 698 if (curchr == -1) |
| 699 { | |
| 700 switch (curchr = regparse[0]) | |
| 701 { | |
| 702 case '.': | |
| 703 case '[': | |
| 704 case '~': | |
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705 // magic when 'magic' is on |
| 7 | 706 if (reg_magic >= MAGIC_ON) |
| 707 curchr = Magic(curchr); | |
| 708 break; | |
| 709 case '(': | |
| 710 case ')': | |
| 711 case '{': | |
| 712 case '%': | |
| 713 case '+': | |
| 714 case '=': | |
| 715 case '?': | |
| 716 case '@': | |
| 717 case '!': | |
| 718 case '&': | |
| 719 case '|': | |
| 720 case '<': | |
| 721 case '>': | |
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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 ',': // future ext. |
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726 case '-': // future ext. |
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727 case ':': // future ext. |
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728 case ';': // future ext. |
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729 case '`': // future ext. |
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730 case '/': // Can't be used in / command |
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731 // magic only after "\v" |
| 7 | 732 if (reg_magic == MAGIC_ALL) |
| 733 curchr = Magic(curchr); | |
| 734 break; | |
| 735 case '*': | |
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736 // * is not magic as the very first character, eg "?*ptr", when |
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737 // after '^', eg "/^*ptr" and when after "\(", "\|", "\&". But |
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738 // "\(\*" is not magic, thus must be magic if "after_slash" |
| 167 | 739 if (reg_magic >= MAGIC_ON |
| 740 && !at_start | |
| 741 && !(prev_at_start && prevchr == Magic('^')) | |
| 742 && (after_slash | |
| 743 || (prevchr != Magic('(') | |
| 744 && prevchr != Magic('&') | |
| 745 && prevchr != Magic('|')))) | |
| 7 | 746 curchr = Magic('*'); |
| 747 break; | |
| 748 case '^': | |
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749 // '^' is only magic as the very first character and if it's after |
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750 // "\(", "\|", "\&' or "\n" |
| 7 | 751 if (reg_magic >= MAGIC_OFF |
| 752 && (at_start | |
| 753 || reg_magic == MAGIC_ALL | |
| 754 || prevchr == Magic('(') | |
| 755 || prevchr == Magic('|') | |
| 756 || prevchr == Magic('&') | |
| 757 || prevchr == Magic('n') | |
| 758 || (no_Magic(prevchr) == '(' | |
| 759 && prevprevchr == Magic('%')))) | |
| 760 { | |
| 761 curchr = Magic('^'); | |
| 762 at_start = TRUE; | |
| 763 prev_at_start = FALSE; | |
| 764 } | |
| 765 break; | |
| 766 case '$': | |
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767 // '$' is only magic as the very last char and if it's in front of |
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768 // either "\|", "\)", "\&", or "\n" |
| 7 | 769 if (reg_magic >= MAGIC_OFF) |
| 770 { | |
| 771 char_u *p = regparse + 1; | |
| 6041 | 772 int is_magic_all = (reg_magic == MAGIC_ALL); |
| 773 | |
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774 // ignore \c \C \m \M \v \V and \Z after '$' |
| 7 | 775 while (p[0] == '\\' && (p[1] == 'c' || p[1] == 'C' |
| 6041 | 776 || p[1] == 'm' || p[1] == 'M' |
| 777 || p[1] == 'v' || p[1] == 'V' || p[1] == 'Z')) | |
| 778 { | |
| 779 if (p[1] == 'v') | |
| 780 is_magic_all = TRUE; | |
| 781 else if (p[1] == 'm' || p[1] == 'M' || p[1] == 'V') | |
| 782 is_magic_all = FALSE; | |
| 7 | 783 p += 2; |
| 6041 | 784 } |
| 7 | 785 if (p[0] == NUL |
| 786 || (p[0] == '\\' | |
| 787 && (p[1] == '|' || p[1] == '&' || p[1] == ')' | |
| 788 || p[1] == 'n')) | |
| 6041 | 789 || (is_magic_all |
| 790 && (p[0] == '|' || p[0] == '&' || p[0] == ')')) | |
| 7 | 791 || reg_magic == MAGIC_ALL) |
| 792 curchr = Magic('$'); | |
| 793 } | |
| 794 break; | |
| 795 case '\\': | |
| 796 { | |
| 797 int c = regparse[1]; | |
| 798 | |
| 799 if (c == NUL) | |
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800 curchr = '\\'; // trailing '\' |
| 7 | 801 else if ( |
| 802 #ifdef EBCDIC | |
| 803 vim_strchr(META, c) | |
| 804 #else | |
| 805 c <= '~' && META_flags[c] | |
| 806 #endif | |
| 807 ) | |
| 808 { | |
| 809 /* | |
| 810 * META contains everything that may be magic sometimes, | |
| 811 * except ^ and $ ("\^" and "\$" are only magic after | |
| 6830 | 812 * "\V"). We now fetch the next character and toggle its |
| 7 | 813 * magicness. Therefore, \ is so meta-magic that it is |
| 814 * not in META. | |
| 815 */ | |
| 816 curchr = -1; | |
| 817 prev_at_start = at_start; | |
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818 at_start = FALSE; // be able to say "/\*ptr" |
| 7 | 819 ++regparse; |
| 167 | 820 ++after_slash; |
| 7 | 821 peekchr(); |
| 822 --regparse; | |
| 167 | 823 --after_slash; |
| 7 | 824 curchr = toggle_Magic(curchr); |
| 825 } | |
| 826 else if (vim_strchr(REGEXP_ABBR, c)) | |
| 827 { | |
| 828 /* | |
| 829 * Handle abbreviations, like "\t" for TAB -- webb | |
| 830 */ | |
| 831 curchr = backslash_trans(c); | |
| 832 } | |
| 833 else if (reg_magic == MAGIC_NONE && (c == '$' || c == '^')) | |
| 834 curchr = toggle_Magic(c); | |
| 835 else | |
| 836 { | |
| 837 /* | |
| 838 * Next character can never be (made) magic? | |
| 839 * Then backslashing it won't do anything. | |
| 840 */ | |
| 841 if (has_mbyte) | |
| 842 curchr = (*mb_ptr2char)(regparse + 1); | |
| 843 else | |
| 844 curchr = c; | |
| 845 } | |
| 846 break; | |
| 847 } | |
| 848 | |
| 849 default: | |
| 850 if (has_mbyte) | |
| 851 curchr = (*mb_ptr2char)(regparse); | |
| 852 } | |
| 853 } | |
| 854 | |
| 855 return curchr; | |
| 856 } | |
| 857 | |
| 858 /* | |
| 859 * Eat one lexed character. Do this in a way that we can undo it. | |
| 860 */ | |
| 861 static void | |
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862 skipchr(void) |
| 7 | 863 { |
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864 // peekchr() eats a backslash, do the same here |
| 7 | 865 if (*regparse == '\\') |
| 866 prevchr_len = 1; | |
| 867 else | |
| 868 prevchr_len = 0; | |
| 869 if (regparse[prevchr_len] != NUL) | |
| 870 { | |
| 714 | 871 if (enc_utf8) |
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872 // exclude composing chars that mb_ptr2len does include |
| 1449 | 873 prevchr_len += utf_ptr2len(regparse + prevchr_len); |
| 714 | 874 else if (has_mbyte) |
| 474 | 875 prevchr_len += (*mb_ptr2len)(regparse + prevchr_len); |
| 7 | 876 else |
| 877 ++prevchr_len; | |
| 878 } | |
| 879 regparse += prevchr_len; | |
| 880 prev_at_start = at_start; | |
| 881 at_start = FALSE; | |
| 882 prevprevchr = prevchr; | |
| 883 prevchr = curchr; | |
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884 curchr = nextchr; // use previously unget char, or -1 |
| 7 | 885 nextchr = -1; |
| 886 } | |
| 887 | |
| 888 /* | |
| 889 * Skip a character while keeping the value of prev_at_start for at_start. | |
| 890 * prevchr and prevprevchr are also kept. | |
| 891 */ | |
| 892 static void | |
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893 skipchr_keepstart(void) |
| 7 | 894 { |
| 895 int as = prev_at_start; | |
| 896 int pr = prevchr; | |
| 897 int prpr = prevprevchr; | |
| 898 | |
| 899 skipchr(); | |
| 900 at_start = as; | |
| 901 prevchr = pr; | |
| 902 prevprevchr = prpr; | |
| 903 } | |
| 904 | |
| 4444 | 905 /* |
| 906 * Get the next character from the pattern. We know about magic and such, so | |
| 907 * therefore we need a lexical analyzer. | |
| 908 */ | |
| 7 | 909 static int |
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910 getchr(void) |
| 7 | 911 { |
| 912 int chr = peekchr(); | |
| 913 | |
| 914 skipchr(); | |
| 915 return chr; | |
| 916 } | |
| 917 | |
| 918 /* | |
| 919 * put character back. Works only once! | |
| 920 */ | |
| 921 static void | |
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922 ungetchr(void) |
| 7 | 923 { |
| 924 nextchr = curchr; | |
| 925 curchr = prevchr; | |
| 926 prevchr = prevprevchr; | |
| 927 at_start = prev_at_start; | |
| 928 prev_at_start = FALSE; | |
| 929 | |
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930 // Backup regparse, so that it's at the same position as before the |
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931 // getchr(). |
| 7 | 932 regparse -= prevchr_len; |
| 933 } | |
| 934 | |
| 935 /* | |
| 29 | 936 * Get and return the value of the hex string at the current position. |
| 937 * Return -1 if there is no valid hex number. | |
| 938 * The position is updated: | |
| 24 | 939 * blahblah\%x20asdf |
| 856 | 940 * before-^ ^-after |
| 24 | 941 * The parameter controls the maximum number of input characters. This will be |
| 942 * 2 when reading a \%x20 sequence and 4 when reading a \%u20AC sequence. | |
| 943 */ | |
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944 static long |
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945 gethexchrs(int maxinputlen) |
| 24 | 946 { |
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947 long_u nr = 0; |
| 24 | 948 int c; |
| 949 int i; | |
| 950 | |
| 951 for (i = 0; i < maxinputlen; ++i) | |
| 952 { | |
| 953 c = regparse[0]; | |
| 954 if (!vim_isxdigit(c)) | |
| 955 break; | |
| 956 nr <<= 4; | |
| 957 nr |= hex2nr(c); | |
| 958 ++regparse; | |
| 959 } | |
| 960 | |
| 961 if (i == 0) | |
| 962 return -1; | |
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963 return (long)nr; |
| 24 | 964 } |
| 965 | |
| 966 /* | |
|
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967 * Get and return the value of the decimal string immediately after the |
| 24 | 968 * current position. Return -1 for invalid. Consumes all digits. |
| 969 */ | |
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970 static long |
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971 getdecchrs(void) |
| 24 | 972 { |
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973 long_u nr = 0; |
| 24 | 974 int c; |
| 975 int i; | |
| 976 | |
| 977 for (i = 0; ; ++i) | |
| 978 { | |
| 979 c = regparse[0]; | |
| 980 if (c < '0' || c > '9') | |
| 981 break; | |
| 982 nr *= 10; | |
| 983 nr += c - '0'; | |
| 984 ++regparse; | |
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985 curchr = -1; // no longer valid |
| 24 | 986 } |
| 987 | |
| 988 if (i == 0) | |
| 989 return -1; | |
|
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990 return (long)nr; |
| 24 | 991 } |
| 992 | |
| 993 /* | |
| 994 * get and return the value of the octal string immediately after the current | |
| 995 * position. Return -1 for invalid, or 0-255 for valid. Smart enough to handle | |
| 996 * numbers > 377 correctly (for example, 400 is treated as 40) and doesn't | |
| 997 * treat 8 or 9 as recognised characters. Position is updated: | |
| 998 * blahblah\%o210asdf | |
| 856 | 999 * before-^ ^-after |
| 24 | 1000 */ |
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1001 static long |
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1002 getoctchrs(void) |
| 24 | 1003 { |
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1004 long_u nr = 0; |
| 24 | 1005 int c; |
| 1006 int i; | |
| 1007 | |
| 1008 for (i = 0; i < 3 && nr < 040; ++i) | |
| 1009 { | |
| 1010 c = regparse[0]; | |
| 1011 if (c < '0' || c > '7') | |
| 1012 break; | |
| 1013 nr <<= 3; | |
| 1014 nr |= hex2nr(c); | |
| 1015 ++regparse; | |
| 1016 } | |
| 1017 | |
| 1018 if (i == 0) | |
| 1019 return -1; | |
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1020 return (long)nr; |
| 24 | 1021 } |
| 1022 | |
| 1023 /* | |
| 7 | 1024 * read_limits - Read two integers to be taken as a minimum and maximum. |
| 1025 * If the first character is '-', then the range is reversed. | |
| 1026 * Should end with 'end'. If minval is missing, zero is default, if maxval is | |
| 1027 * missing, a very big number is the default. | |
| 1028 */ | |
| 1029 static int | |
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1030 read_limits(long *minval, long *maxval) |
| 7 | 1031 { |
| 1032 int reverse = FALSE; | |
| 1033 char_u *first_char; | |
| 1034 long tmp; | |
| 1035 | |
| 1036 if (*regparse == '-') | |
| 1037 { | |
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1038 // Starts with '-', so reverse the range later |
| 7 | 1039 regparse++; |
| 1040 reverse = TRUE; | |
| 1041 } | |
| 1042 first_char = regparse; | |
| 1043 *minval = getdigits(®parse); | |
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1044 if (*regparse == ',') // There is a comma |
| 7 | 1045 { |
| 1046 if (vim_isdigit(*++regparse)) | |
| 1047 *maxval = getdigits(®parse); | |
| 1048 else | |
| 1049 *maxval = MAX_LIMIT; | |
| 1050 } | |
| 1051 else if (VIM_ISDIGIT(*first_char)) | |
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1052 *maxval = *minval; // It was \{n} or \{-n} |
| 7 | 1053 else |
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1054 *maxval = MAX_LIMIT; // It was \{} or \{-} |
| 7 | 1055 if (*regparse == '\\') |
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1056 regparse++; // Allow either \{...} or \{...\} |
| 167 | 1057 if (*regparse != '}') |
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1058 EMSG2_RET_FAIL(_("E554: Syntax error in %s{...}"), |
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1059 reg_magic == MAGIC_ALL); |
| 7 | 1060 |
| 1061 /* | |
| 1062 * Reverse the range if there was a '-', or make sure it is in the right | |
| 1063 * order otherwise. | |
| 1064 */ | |
| 1065 if ((!reverse && *minval > *maxval) || (reverse && *minval < *maxval)) | |
| 1066 { | |
| 1067 tmp = *minval; | |
| 1068 *minval = *maxval; | |
| 1069 *maxval = tmp; | |
| 1070 } | |
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1071 skipchr(); // let's be friends with the lexer again |
| 7 | 1072 return OK; |
| 1073 } | |
| 1074 | |
| 1075 /* | |
| 1076 * vim_regexec and friends | |
| 1077 */ | |
| 1078 | |
| 1079 /* | |
| 1080 * Global work variables for vim_regexec(). | |
| 1081 */ | |
| 1082 | |
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1083 static void cleanup_subexpr(void); |
| 7 | 1084 #ifdef FEAT_SYN_HL |
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1085 static void cleanup_zsubexpr(void); |
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1086 #endif |
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1087 static void reg_nextline(void); |
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1088 static int match_with_backref(linenr_T start_lnum, colnr_T start_col, linenr_T end_lnum, colnr_T end_col, int *bytelen); |
| 7 | 1089 |
| 1090 /* | |
| 1091 * Sometimes need to save a copy of a line. Since alloc()/free() is very | |
| 1092 * slow, we keep one allocated piece of memory and only re-allocate it when | |
| 4444 | 1093 * it's too small. It's freed in bt_regexec_both() when finished. |
| 7 | 1094 */ |
| 1468 | 1095 static char_u *reg_tofree = NULL; |
| 7 | 1096 static unsigned reg_tofreelen; |
| 1097 | |
| 1098 /* | |
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1099 * Structure used to store the execution state of the regex engine. |
| 1209 | 1100 * Which ones are set depends on whether a single-line or multi-line match is |
| 7 | 1101 * done: |
| 1102 * single-line multi-line | |
| 1103 * reg_match ®match_T NULL | |
| 1104 * reg_mmatch NULL ®mmatch_T | |
| 1105 * reg_startp reg_match->startp <invalid> | |
| 1106 * reg_endp reg_match->endp <invalid> | |
| 1107 * reg_startpos <invalid> reg_mmatch->startpos | |
| 1108 * reg_endpos <invalid> reg_mmatch->endpos | |
| 1109 * reg_win NULL window in which to search | |
| 4061 | 1110 * reg_buf curbuf buffer in which to search |
| 7 | 1111 * reg_firstlnum <invalid> first line in which to search |
| 1112 * reg_maxline 0 last line nr | |
| 1113 * reg_line_lbr FALSE or TRUE FALSE | |
| 1114 */ | |
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1115 typedef struct { |
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1116 regmatch_T *reg_match; |
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1117 regmmatch_T *reg_mmatch; |
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1118 char_u **reg_startp; |
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1119 char_u **reg_endp; |
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1120 lpos_T *reg_startpos; |
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1121 lpos_T *reg_endpos; |
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1122 win_T *reg_win; |
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1123 buf_T *reg_buf; |
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1124 linenr_T reg_firstlnum; |
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1125 linenr_T reg_maxline; |
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1126 int reg_line_lbr; // "\n" in string is line break |
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1127 |
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1128 // The current match-position is stord in these variables: |
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1129 linenr_T lnum; // line number, relative to first line |
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1130 char_u *line; // start of current line |
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1131 char_u *input; // current input, points into "regline" |
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1132 |
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1133 int need_clear_subexpr; // subexpressions still need to be cleared |
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1134 #ifdef FEAT_SYN_HL |
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1135 int need_clear_zsubexpr; // extmatch subexpressions still need to be |
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1136 // cleared |
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1137 #endif |
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1138 |
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1139 // Internal copy of 'ignorecase'. It is set at each call to vim_regexec(). |
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1140 // Normally it gets the value of "rm_ic" or "rmm_ic", but when the pattern |
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1141 // contains '\c' or '\C' the value is overruled. |
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1142 int reg_ic; |
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1143 |
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1144 // Similar to "reg_ic", but only for 'combining' characters. Set with \Z |
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1145 // flag in the regexp. Defaults to false, always. |
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1146 int reg_icombine; |
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1147 |
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1148 // Copy of "rmm_maxcol": maximum column to search for a match. Zero when |
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1149 // there is no maximum. |
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1150 colnr_T reg_maxcol; |
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1151 |
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1152 // State for the NFA engine regexec. |
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1153 int nfa_has_zend; // NFA regexp \ze operator encountered. |
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1154 int nfa_has_backref; // NFA regexp \1 .. \9 encountered. |
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1155 int nfa_nsubexpr; // Number of sub expressions actually being used |
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1156 // during execution. 1 if only the whole match |
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1157 // (subexpr 0) is used. |
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1158 // listid is global, so that it increases on recursive calls to |
|
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1159 // nfa_regmatch(), which means we don't have to clear the lastlist field of |
|
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|
1160 // all the states. |
|
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|
1161 int nfa_listid; |
|
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|
1162 int nfa_alt_listid; |
|
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|
1163 |
|
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|
1164 #ifdef FEAT_SYN_HL |
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|
1165 int nfa_has_zsubexpr; // NFA regexp has \z( ), set zsubexpr. |
|
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|
1166 #endif |
|
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|
1167 } regexec_T; |
|
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1168 |
|
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|
1169 static regexec_T rex; |
|
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|
1170 static int rex_in_use = FALSE; |
|
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|
1171 |
| 7 | 1172 /* |
|
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1173 * Return TRUE if character 'c' is included in 'iskeyword' option for |
|
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|
1174 * "reg_buf" buffer. |
|
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1175 */ |
|
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|
1176 static int |
|
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|
1177 reg_iswordc(int c) |
|
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1178 { |
|
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|
1179 return vim_iswordc_buf(c, rex.reg_buf); |
|
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|
1180 } |
|
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1181 |
|
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1182 /* |
| 7 | 1183 * Get pointer to the line "lnum", which is relative to "reg_firstlnum". |
| 1184 */ | |
| 1185 static char_u * | |
|
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|
1186 reg_getline(linenr_T lnum) |
| 7 | 1187 { |
|
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|
1188 // when looking behind for a match/no-match lnum is negative. But we |
|
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|
1189 // can't go before line 1 |
|
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|
1190 if (rex.reg_firstlnum + lnum < 1) |
| 7 | 1191 return NULL; |
|
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|
1192 if (lnum > rex.reg_maxline) |
|
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|
1193 // Must have matched the "\n" in the last line. |
| 481 | 1194 return (char_u *)""; |
|
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|
1195 return ml_get_buf(rex.reg_buf, rex.reg_firstlnum + lnum, FALSE); |
| 7 | 1196 } |
| 1197 | |
| 1198 #ifdef FEAT_SYN_HL | |
|
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1199 static char_u *reg_startzp[NSUBEXP]; // Workspace to mark beginning |
|
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|
1200 static char_u *reg_endzp[NSUBEXP]; // and end of \z(...\) matches |
|
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|
1201 static lpos_T reg_startzpos[NSUBEXP]; // idem, beginning pos |
|
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|
1202 static lpos_T reg_endzpos[NSUBEXP]; // idem, end pos |
| 7 | 1203 #endif |
| 1204 | |
|
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|
1205 // TRUE if using multi-line regexp. |
|
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|
1206 #define REG_MULTI (rex.reg_match == NULL) |
| 4444 | 1207 |
| 7 | 1208 #ifdef FEAT_SYN_HL |
| 1209 /* | |
| 1210 * Create a new extmatch and mark it as referenced once. | |
| 1211 */ | |
| 1212 static reg_extmatch_T * | |
|
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|
1213 make_extmatch(void) |
| 7 | 1214 { |
| 1215 reg_extmatch_T *em; | |
| 1216 | |
|
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changeset
|
1217 em = ALLOC_CLEAR_ONE(reg_extmatch_T); |
| 7 | 1218 if (em != NULL) |
| 1219 em->refcnt = 1; | |
| 1220 return em; | |
| 1221 } | |
| 1222 | |
| 1223 /* | |
| 1224 * Add a reference to an extmatch. | |
| 1225 */ | |
| 1226 reg_extmatch_T * | |
|
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|
1227 ref_extmatch(reg_extmatch_T *em) |
| 7 | 1228 { |
| 1229 if (em != NULL) | |
| 1230 em->refcnt++; | |
| 1231 return em; | |
| 1232 } | |
| 1233 | |
| 1234 /* | |
| 1235 * Remove a reference to an extmatch. If there are no references left, free | |
| 1236 * the info. | |
| 1237 */ | |
| 1238 void | |
|
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|
1239 unref_extmatch(reg_extmatch_T *em) |
| 7 | 1240 { |
| 1241 int i; | |
| 1242 | |
| 1243 if (em != NULL && --em->refcnt <= 0) | |
| 1244 { | |
| 1245 for (i = 0; i < NSUBEXP; ++i) | |
| 1246 vim_free(em->matches[i]); | |
| 1247 vim_free(em); | |
| 1248 } | |
| 1249 } | |
| 1250 #endif | |
| 1251 | |
| 1252 /* | |
| 1253 * Get class of previous character. | |
| 1254 */ | |
| 1255 static int | |
|
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|
1256 reg_prev_class(void) |
| 7 | 1257 { |
|
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|
1258 if (rex.input > rex.line) |
|
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|
1259 return mb_get_class_buf(rex.input - 1 |
|
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|
1260 - (*mb_head_off)(rex.line, rex.input - 1), rex.reg_buf); |
| 7 | 1261 return -1; |
| 1262 } | |
| 5735 | 1263 |
|
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|
1264 /* |
|
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|
1265 * Return TRUE if the current rex.input position matches the Visual area. |
|
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|
1266 */ |
|
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|
1267 static int |
|
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|
1268 reg_match_visual(void) |
|
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|
1269 { |
|
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|
1270 pos_T top, bot; |
|
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|
1271 linenr_T lnum; |
|
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|
1272 colnr_T col; |
|
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|
1273 win_T *wp = rex.reg_win == NULL ? curwin : rex.reg_win; |
|
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|
1274 int mode; |
|
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|
1275 colnr_T start, end; |
|
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|
1276 colnr_T start2, end2; |
|
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|
1277 colnr_T cols; |
|
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|
1278 |
|
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|
1279 // Check if the buffer is the current buffer. |
|
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|
1280 if (rex.reg_buf != curbuf || VIsual.lnum == 0) |
|
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|
1281 return FALSE; |
|
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|
1282 |
|
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|
1283 if (VIsual_active) |
|
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|
1284 { |
|
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|
1285 if (LT_POS(VIsual, wp->w_cursor)) |
|
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|
1286 { |
|
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|
1287 top = VIsual; |
|
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|
1288 bot = wp->w_cursor; |
|
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|
1289 } |
|
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|
1290 else |
|
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|
1291 { |
|
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|
1292 top = wp->w_cursor; |
|
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|
1293 bot = VIsual; |
|
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|
1294 } |
|
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|
1295 mode = VIsual_mode; |
|
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|
1296 } |
|
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|
1297 else |
|
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|
1298 { |
|
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|
1299 if (LT_POS(curbuf->b_visual.vi_start, curbuf->b_visual.vi_end)) |
|
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|
1300 { |
|
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1301 top = curbuf->b_visual.vi_start; |
|
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|
1302 bot = curbuf->b_visual.vi_end; |
|
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1303 } |
|
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1304 else |
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|
1305 { |
|
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1306 top = curbuf->b_visual.vi_end; |
|
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1307 bot = curbuf->b_visual.vi_start; |
|
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1308 } |
|
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1309 mode = curbuf->b_visual.vi_mode; |
|
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1310 } |
|
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|
1311 lnum = rex.lnum + rex.reg_firstlnum; |
|
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|
1312 if (lnum < top.lnum || lnum > bot.lnum) |
|
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|
1313 return FALSE; |
|
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|
1314 |
|
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diff
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|
1315 if (mode == 'v') |
|
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|
1316 { |
|
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|
1317 col = (colnr_T)(rex.input - rex.line); |
|
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|
1318 if ((lnum == top.lnum && col < top.col) |
|
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|
1319 || (lnum == bot.lnum && col >= bot.col + (*p_sel != 'e'))) |
|
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|
1320 return FALSE; |
|
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|
1321 } |
|
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|
1322 else if (mode == Ctrl_V) |
|
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|
1323 { |
|
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|
1324 getvvcol(wp, &top, &start, NULL, &end); |
|
749e2b2755d5
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diff
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|
1325 getvvcol(wp, &bot, &start2, NULL, &end2); |
|
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|
1326 if (start2 < start) |
|
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|
1327 start = start2; |
|
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|
1328 if (end2 > end) |
|
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|
1329 end = end2; |
|
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|
1330 if (top.col == MAXCOL || bot.col == MAXCOL) |
|
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|
1331 end = MAXCOL; |
|
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|
1332 cols = win_linetabsize(wp, rex.line, (colnr_T)(rex.input - rex.line)); |
|
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|
1333 if (cols < start || cols > end - (*p_sel == 'e')) |
|
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|
1334 return FALSE; |
|
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|
1335 } |
|
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|
1336 return TRUE; |
|
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|
1337 } |
|
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|
1338 |
| 7 | 1339 /* |
| 1340 * Check the regexp program for its magic number. | |
| 1341 * Return TRUE if it's wrong. | |
| 1342 */ | |
| 1343 static int | |
|
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|
1344 prog_magic_wrong(void) |
| 7 | 1345 { |
| 4444 | 1346 regprog_T *prog; |
| 1347 | |
|
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diff
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|
1348 prog = REG_MULTI ? rex.reg_mmatch->regprog : rex.reg_match->regprog; |
| 4444 | 1349 if (prog->engine == &nfa_regengine) |
|
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|
1350 // For NFA matcher we don't check the magic |
| 4444 | 1351 return FALSE; |
| 1352 | |
| 1353 if (UCHARAT(((bt_regprog_T *)prog)->program) != REGMAGIC) | |
| 7 | 1354 { |
|
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|
1355 emsg(_(e_re_corr)); |
| 7 | 1356 return TRUE; |
| 1357 } | |
| 1358 return FALSE; | |
| 1359 } | |
| 1360 | |
| 1361 /* | |
| 1362 * Cleanup the subexpressions, if this wasn't done yet. | |
| 1363 * This construction is used to clear the subexpressions only when they are | |
| 1364 * used (to increase speed). | |
| 1365 */ | |
| 1366 static void | |
|
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|
1367 cleanup_subexpr(void) |
| 7 | 1368 { |
|
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|
1369 if (rex.need_clear_subexpr) |
| 7 | 1370 { |
| 1371 if (REG_MULTI) | |
| 1372 { | |
|
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|
1373 // Use 0xff to set lnum to -1 |
|
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diff
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|
1374 vim_memset(rex.reg_startpos, 0xff, sizeof(lpos_T) * NSUBEXP); |
|
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Christian Brabandt <cb@256bit.org>
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|
1375 vim_memset(rex.reg_endpos, 0xff, sizeof(lpos_T) * NSUBEXP); |
| 7 | 1376 } |
| 1377 else | |
| 1378 { | |
|
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diff
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|
1379 vim_memset(rex.reg_startp, 0, sizeof(char_u *) * NSUBEXP); |
|
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|
1380 vim_memset(rex.reg_endp, 0, sizeof(char_u *) * NSUBEXP); |
| 7 | 1381 } |
|
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|
1382 rex.need_clear_subexpr = FALSE; |
| 7 | 1383 } |
| 1384 } | |
| 1385 | |
| 1386 #ifdef FEAT_SYN_HL | |
| 1387 static void | |
|
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diff
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|
1388 cleanup_zsubexpr(void) |
| 7 | 1389 { |
|
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|
1390 if (rex.need_clear_zsubexpr) |
| 7 | 1391 { |
| 1392 if (REG_MULTI) | |
| 1393 { | |
|
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|
1394 // Use 0xff to set lnum to -1 |
| 7 | 1395 vim_memset(reg_startzpos, 0xff, sizeof(lpos_T) * NSUBEXP); |
| 1396 vim_memset(reg_endzpos, 0xff, sizeof(lpos_T) * NSUBEXP); | |
| 1397 } | |
| 1398 else | |
| 1399 { | |
| 1400 vim_memset(reg_startzp, 0, sizeof(char_u *) * NSUBEXP); | |
| 1401 vim_memset(reg_endzp, 0, sizeof(char_u *) * NSUBEXP); | |
| 1402 } | |
|
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|
1403 rex.need_clear_zsubexpr = FALSE; |
| 7 | 1404 } |
| 1405 } | |
| 1406 #endif | |
| 1407 | |
| 1408 /* | |
|
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|
1409 * Advance rex.lnum, rex.line and rex.input to the next line. |
| 7 | 1410 */ |
| 1411 static void | |
|
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diff
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|
1412 reg_nextline(void) |
| 7 | 1413 { |
|
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|
1414 rex.line = reg_getline(++rex.lnum); |
|
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|
1415 rex.input = rex.line; |
| 7 | 1416 fast_breakcheck(); |
| 1417 } | |
| 1418 | |
| 1419 /* | |
|
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|
1420 * Check whether a backreference matches. |
|
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|
1421 * Returns RA_FAIL, RA_NOMATCH or RA_MATCH. |
| 5504 | 1422 * If "bytelen" is not NULL, it is set to the byte length of the match in the |
| 1423 * last line. | |
|
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|
1424 */ |
|
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|
1425 static int |
|
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diff
changeset
|
1426 match_with_backref( |
|
c079097365f3
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diff
changeset
|
1427 linenr_T start_lnum, |
|
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|
1428 colnr_T start_col, |
|
c079097365f3
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diff
changeset
|
1429 linenr_T end_lnum, |
|
c079097365f3
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diff
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|
1430 colnr_T end_col, |
|
c079097365f3
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|
1431 int *bytelen) |
|
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|
1432 { |
|
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|
1433 linenr_T clnum = start_lnum; |
|
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|
1434 colnr_T ccol = start_col; |
|
4c42efb4c098
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|
1435 int len; |
|
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|
1436 char_u *p; |
|
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|
1437 |
|
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|
1438 if (bytelen != NULL) |
|
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|
1439 *bytelen = 0; |
|
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|
1440 for (;;) |
|
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|
1441 { |
|
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|
1442 // Since getting one line may invalidate the other, need to make copy. |
|
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|
1443 // Slow! |
|
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|
1444 if (rex.line != reg_tofree) |
|
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|
1445 { |
|
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|
1446 len = (int)STRLEN(rex.line); |
|
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|
1447 if (reg_tofree == NULL || len >= (int)reg_tofreelen) |
|
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|
1448 { |
|
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|
1449 len += 50; // get some extra |
|
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|
1450 vim_free(reg_tofree); |
|
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|
1451 reg_tofree = alloc(len); |
|
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|
1452 if (reg_tofree == NULL) |
|
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|
1453 return RA_FAIL; // out of memory! |
|
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|
1454 reg_tofreelen = len; |
|
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|
1455 } |
|
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|
1456 STRCPY(reg_tofree, rex.line); |
|
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|
1457 rex.input = reg_tofree + (rex.input - rex.line); |
|
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|
1458 rex.line = reg_tofree; |
|
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|
1459 } |
|
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|
1460 |
|
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|
1461 // Get the line to compare with. |
|
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|
1462 p = reg_getline(clnum); |
|
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|
1463 if (clnum == end_lnum) |
|
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|
1464 len = end_col - ccol; |
|
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|
1465 else |
|
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changeset
|
1466 len = (int)STRLEN(p + ccol); |
|
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|
1467 |
|
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14169
diff
changeset
|
1468 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
|
1469 return RA_NOMATCH; // doesn't match |
|
4891
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
1470 if (bytelen != NULL) |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
1471 *bytelen += len; |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
1472 if (clnum == end_lnum) |
|
18812
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
1473 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
|
1474 if (rex.lnum >= rex.reg_maxline) |
|
18812
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
1475 return RA_NOMATCH; // text too short |
|
4891
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
1476 |
|
18812
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
1477 // Advance to next line. |
|
4891
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
1478 reg_nextline(); |
| 5504 | 1479 if (bytelen != NULL) |
| 1480 *bytelen = 0; | |
|
4891
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
1481 ++clnum; |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
1482 ccol = 0; |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
1483 if (got_int) |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
1484 return RA_FAIL; |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
1485 } |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
1486 |
|
18812
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
1487 // 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
|
1488 // that should not matter. |
|
4891
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
1489 return RA_MATCH; |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
1490 } |
| 7 | 1491 |
| 6203 | 1492 /* |
| 1493 * Used in a place where no * or \+ can follow. | |
| 1494 */ | |
| 1495 static int | |
|
7833
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
1496 re_mult_next(char *what) |
| 6203 | 1497 { |
| 1498 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
|
1499 { |
|
bd12ace1bab2
patch 8.1.0748: using sprintf() instead of semsg()
Bram Moolenaar <Bram@vim.org>
parents:
15470
diff
changeset
|
1500 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
|
1501 rc_did_emsg = TRUE; |
|
bd12ace1bab2
patch 8.1.0748: using sprintf() instead of semsg()
Bram Moolenaar <Bram@vim.org>
parents:
15470
diff
changeset
|
1502 return FAIL; |
|
bd12ace1bab2
patch 8.1.0748: using sprintf() instead of semsg()
Bram Moolenaar <Bram@vim.org>
parents:
15470
diff
changeset
|
1503 } |
| 6203 | 1504 return OK; |
| 1505 } | |
| 1506 | |
| 7 | 1507 typedef struct |
| 1508 { | |
| 1509 int a, b, c; | |
| 1510 } decomp_T; | |
| 1511 | |
| 1512 | |
|
18812
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patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
1513 // 0xfb20 - 0xfb4f |
| 297 | 1514 static decomp_T decomp_table[0xfb4f-0xfb20+1] = |
| 7 | 1515 { |
|
18812
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
1516 {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
|
1517 {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
|
1518 {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
|
1519 {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
|
1520 {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
|
1521 {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
|
1522 {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
|
1523 {0x5e8,0,0}, // 0xfb27 alt resh |
|
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
1524 {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
|
1525 {'+', 0, 0}, // 0xfb29 alt plus |
|
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
1526 {0x5e9, 0x5c1, 0}, // 0xfb2a shin+shin-dot |
|
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
1527 {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
|
1528 {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
|
1529 {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
|
1530 {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
|
1531 {0x5d0, 0x5b8, 0}, // 0xfb2f alef+qamats |
|
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
1532 {0x5d0, 0x5b4, 0}, // 0xfb30 alef+hiriq |
|
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
1533 {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
|
1534 {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
|
1535 {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
|
1536 {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
|
1537 {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
|
1538 {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
|
1539 {0xfb37, 0, 0}, // 0xfb37 -- UNUSED |
|
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
1540 {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
|
1541 {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
|
1542 {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
|
1543 {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
|
1544 {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
|
1545 {0xfb3d, 0, 0}, // 0xfb3d -- UNUSED |
|
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
1546 {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
|
1547 {0xfb3f, 0, 0}, // 0xfb3f -- UNUSED |
|
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
1548 {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
|
1549 {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
|
1550 {0xfb42, 0, 0}, // 0xfb42 -- UNUSED |
|
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
1551 {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
|
1552 {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
|
1553 {0xfb45, 0, 0}, // 0xfb45 -- UNUSED |
|
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
1554 {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
|
1555 {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
|
1556 {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
|
1557 {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
|
1558 {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
|
1559 {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
|
1560 {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
|
1561 {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
|
1562 {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
|
1563 {0x5d0, 0x5dc, 0} // 0xfb4f alef-lamed |
| 7 | 1564 }; |
| 1565 | |
| 1566 static void | |
|
7833
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
1567 mb_decompose(int c, int *c1, int *c2, int *c3) |
| 7 | 1568 { |
| 1569 decomp_T d; | |
| 1570 | |
|
4505
d037b9cbdaaa
updated for version 7.3.1000
Bram Moolenaar <bram@vim.org>
parents:
4466
diff
changeset
|
1571 if (c >= 0xfb20 && c <= 0xfb4f) |
| 7 | 1572 { |
| 1573 d = decomp_table[c - 0xfb20]; | |
| 1574 *c1 = d.a; | |
| 1575 *c2 = d.b; | |
| 1576 *c3 = d.c; | |
| 1577 } | |
| 1578 else | |
| 1579 { | |
| 1580 *c1 = c; | |
| 1581 *c2 = *c3 = 0; | |
| 1582 } | |
| 1583 } | |
| 1584 | |
| 1585 /* | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
1586 * Compare two strings, ignore case if rex.reg_ic set. |
| 7 | 1587 * Return 0 if strings match, non-zero otherwise. |
| 1588 * Correct the length "*n" when composing characters are ignored. | |
| 1589 */ | |
| 1590 static int | |
|
7833
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
1591 cstrncmp(char_u *s1, char_u *s2, int *n) |
| 7 | 1592 { |
| 1593 int result; | |
| 1594 | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
1595 if (!rex.reg_ic) |
| 7 | 1596 result = STRNCMP(s1, s2, *n); |
| 1597 else | |
| 1598 result = MB_STRNICMP(s1, s2, *n); | |
| 1599 | |
|
18812
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
1600 // 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
|
1601 if (result != 0 && enc_utf8 && rex.reg_icombine) |
| 7 | 1602 { |
| 1603 char_u *str1, *str2; | |
| 1604 int c1, c2, c11, c12; | |
| 1605 int junk; | |
| 1606 | |
|
18812
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patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
1607 // 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
|
1608 // deal with the composing characters by ignoring them: |
| 7 | 1609 str1 = s1; |
| 1610 str2 = s2; | |
| 1611 c1 = c2 = 0; | |
| 507 | 1612 while ((int)(str1 - s1) < *n) |
| 7 | 1613 { |
| 1614 c1 = mb_ptr2char_adv(&str1); | |
| 1615 c2 = mb_ptr2char_adv(&str2); | |
| 1616 | |
|
18019
68fd5296bf73
patch 8.1.2005: the regexp.c file is too big
Bram Moolenaar <Bram@vim.org>
parents:
17966
diff
changeset
|
1617 // Decompose the character if necessary, into 'base' characters. |
|
68fd5296bf73
patch 8.1.2005: the regexp.c file is too big
Bram Moolenaar <Bram@vim.org>
parents:
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|
1618 // Currently hard-coded for Hebrew, Arabic to be done... |
|
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|
1619 if (c1 != c2 && (!rex.reg_ic || utf_fold(c1) != utf_fold(c2))) |
| 7 | 1620 { |
|
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|
1621 // decomposition necessary? |
| 7 | 1622 mb_decompose(c1, &c11, &junk, &junk); |
| 1623 mb_decompose(c2, &c12, &junk, &junk); | |
| 1624 c1 = c11; | |
| 1625 c2 = c12; | |
|
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|
1626 if (c11 != c12 |
|
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1627 && (!rex.reg_ic || utf_fold(c11) != utf_fold(c12))) |
| 7 | 1628 break; |
| 1629 } | |
| 1630 } | |
| 1631 result = c2 - c1; | |
| 1632 if (result == 0) | |
| 1633 *n = (int)(str2 - s2); | |
| 1634 } | |
| 1635 | |
| 1636 return result; | |
| 1637 } | |
| 1638 | |
| 1639 /* | |
| 1640 * cstrchr: This function is used a lot for simple searches, keep it fast! | |
| 1641 */ | |
| 1642 static char_u * | |
|
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|
1643 cstrchr(char_u *s, int c) |
| 7 | 1644 { |
| 1645 char_u *p; | |
| 1646 int cc; | |
| 1647 | |
|
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1648 if (!rex.reg_ic || (!enc_utf8 && mb_char2len(c) > 1)) |
| 7 | 1649 return vim_strchr(s, c); |
| 1650 | |
|
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1651 // tolower() and toupper() can be slow, comparing twice should be a lot |
|
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1652 // faster (esp. when using MS Visual C++!). |
|
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|
1653 // For UTF-8 need to use folded case. |
| 7 | 1654 if (enc_utf8 && c > 0x80) |
| 1655 cc = utf_fold(c); | |
| 1656 else | |
| 1347 | 1657 if (MB_ISUPPER(c)) |
| 1658 cc = MB_TOLOWER(c); | |
| 1659 else if (MB_ISLOWER(c)) | |
| 1660 cc = MB_TOUPPER(c); | |
| 7 | 1661 else |
| 1662 return vim_strchr(s, c); | |
| 1663 | |
| 1664 if (has_mbyte) | |
| 1665 { | |
| 474 | 1666 for (p = s; *p != NUL; p += (*mb_ptr2len)(p)) |
| 7 | 1667 { |
| 1668 if (enc_utf8 && c > 0x80) | |
| 1669 { | |
| 1670 if (utf_fold(utf_ptr2char(p)) == cc) | |
| 1671 return p; | |
| 1672 } | |
| 1673 else if (*p == c || *p == cc) | |
| 1674 return p; | |
| 1675 } | |
| 1676 } | |
| 1677 else | |
|
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1678 // Faster version for when there are no multi-byte characters. |
| 7 | 1679 for (p = s; *p != NUL; ++p) |
| 1680 if (*p == c || *p == cc) | |
| 1681 return p; | |
| 1682 | |
| 1683 return NULL; | |
| 1684 } | |
| 1685 | |
|
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1686 //////////////////////////////////////////////////////////////// |
|
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1687 // regsub stuff // |
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1688 //////////////////////////////////////////////////////////////// |
| 7 | 1689 |
| 1690 /* | |
| 1691 * We should define ftpr as a pointer to a function returning a pointer to | |
| 1692 * a function returning a pointer to a function ... | |
| 1693 * This is impossible, so we declare a pointer to a function returning a | |
| 1694 * pointer to a function returning void. This should work for all compilers. | |
| 1695 */ | |
|
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1696 typedef void (*(*fptr_T)(int *, int))(); |
|
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1697 |
|
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|
1698 static int vim_regsub_both(char_u *source, typval_T *expr, char_u *dest, int copy, int magic, int backslash); |
| 7 | 1699 |
| 772 | 1700 static fptr_T |
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|
1701 do_upper(int *d, int c) |
| 7 | 1702 { |
| 772 | 1703 *d = MB_TOUPPER(c); |
| 1704 | |
| 1705 return (fptr_T)NULL; | |
| 7 | 1706 } |
| 1707 | |
| 772 | 1708 static fptr_T |
|
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|
1709 do_Upper(int *d, int c) |
| 7 | 1710 { |
| 772 | 1711 *d = MB_TOUPPER(c); |
| 1712 | |
| 1713 return (fptr_T)do_Upper; | |
| 1714 } | |
| 1715 | |
| 1716 static fptr_T | |
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|
1717 do_lower(int *d, int c) |
| 772 | 1718 { |
| 1719 *d = MB_TOLOWER(c); | |
| 1720 | |
| 1721 return (fptr_T)NULL; | |
| 1722 } | |
| 1723 | |
| 1724 static fptr_T | |
|
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|
1725 do_Lower(int *d, int c) |
| 772 | 1726 { |
| 1727 *d = MB_TOLOWER(c); | |
| 1728 | |
| 1729 return (fptr_T)do_Lower; | |
| 7 | 1730 } |
| 1731 | |
| 1732 /* | |
| 1733 * regtilde(): Replace tildes in the pattern by the old pattern. | |
| 1734 * | |
| 1735 * Short explanation of the tilde: It stands for the previous replacement | |
| 1736 * pattern. If that previous pattern also contains a ~ we should go back a | |
| 1737 * step further... But we insert the previous pattern into the current one | |
| 1738 * and remember that. | |
| 772 | 1739 * This still does not handle the case where "magic" changes. So require the |
| 1740 * user to keep his hands off of "magic". | |
| 7 | 1741 * |
| 1742 * The tildes are parsed once before the first call to vim_regsub(). | |
| 1743 */ | |
| 1744 char_u * | |
|
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1745 regtilde(char_u *source, int magic) |
| 7 | 1746 { |
| 1747 char_u *newsub = source; | |
| 1748 char_u *tmpsub; | |
| 1749 char_u *p; | |
| 1750 int len; | |
| 1751 int prevlen; | |
| 1752 | |
| 1753 for (p = newsub; *p; ++p) | |
| 1754 { | |
| 1755 if ((*p == '~' && magic) || (*p == '\\' && *(p + 1) == '~' && !magic)) | |
| 1756 { | |
| 1757 if (reg_prev_sub != NULL) | |
| 1758 { | |
|
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1759 // length = len(newsub) - 1 + len(prev_sub) + 1 |
| 7 | 1760 prevlen = (int)STRLEN(reg_prev_sub); |
|
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1761 tmpsub = alloc(STRLEN(newsub) + prevlen); |
| 7 | 1762 if (tmpsub != NULL) |
| 1763 { | |
|
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1764 // copy prefix |
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1765 len = (int)(p - newsub); // not including ~ |
| 7 | 1766 mch_memmove(tmpsub, newsub, (size_t)len); |
|
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1767 // interpret tilde |
| 7 | 1768 mch_memmove(tmpsub + len, reg_prev_sub, (size_t)prevlen); |
|
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1769 // copy postfix |
| 7 | 1770 if (!magic) |
|
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1771 ++p; // back off backslash |
| 7 | 1772 STRCPY(tmpsub + len + prevlen, p + 1); |
| 1773 | |
|
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1774 if (newsub != source) // already allocated newsub |
| 7 | 1775 vim_free(newsub); |
| 1776 newsub = tmpsub; | |
| 1777 p = newsub + len + prevlen; | |
| 1778 } | |
| 1779 } | |
| 1780 else if (magic) | |
|
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1781 STRMOVE(p, p + 1); // remove '~' |
| 7 | 1782 else |
|
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1783 STRMOVE(p, p + 2); // remove '\~' |
| 7 | 1784 --p; |
| 1785 } | |
| 1786 else | |
| 1787 { | |
|
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1788 if (*p == '\\' && p[1]) // skip escaped characters |
| 7 | 1789 ++p; |
| 1790 if (has_mbyte) | |
| 474 | 1791 p += (*mb_ptr2len)(p) - 1; |
| 7 | 1792 } |
| 1793 } | |
| 1794 | |
| 1795 vim_free(reg_prev_sub); | |
|
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1796 if (newsub != source) // newsub was allocated, just keep it |
| 7 | 1797 reg_prev_sub = newsub; |
|
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1798 else // no ~ found, need to save newsub |
| 7 | 1799 reg_prev_sub = vim_strsave(newsub); |
| 1800 return newsub; | |
| 1801 } | |
| 1802 | |
| 1803 #ifdef FEAT_EVAL | |
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1804 static int can_f_submatch = FALSE; // TRUE when submatch() can be used |
| 7 | 1805 |
|
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1806 // These pointers are used for reg_submatch(). Needed for when the |
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1807 // substitution string is an expression that contains a call to substitute() |
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1808 // and submatch(). |
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1809 typedef struct { |
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1810 regmatch_T *sm_match; |
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1811 regmmatch_T *sm_mmatch; |
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1812 linenr_T sm_firstlnum; |
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1813 linenr_T sm_maxline; |
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1814 int sm_line_lbr; |
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1815 } regsubmatch_T; |
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1816 |
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1817 static regsubmatch_T rsm; // can only be used when can_f_submatch is TRUE |
| 7 | 1818 #endif |
| 1819 | |
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1820 #ifdef FEAT_EVAL |
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1821 |
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1822 /* |
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1823 * Put the submatches in "argv[argskip]" which is a list passed into |
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1824 * call_func() by vim_regsub_both(). |
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1825 */ |
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1826 static int |
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1827 fill_submatch_list(int argc UNUSED, typval_T *argv, int argskip, int argcount) |
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1828 { |
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1829 listitem_T *li; |
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1830 int i; |
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1831 char_u *s; |
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1832 typval_T *listarg = argv + argskip; |
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1833 |
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1834 if (argcount == argskip) |
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1835 // called function doesn't take a submatches argument |
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1836 return argskip; |
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1837 |
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1838 // Relies on sl_list to be the first item in staticList10_T. |
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1839 init_static_list((staticList10_T *)(listarg->vval.v_list)); |
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1840 |
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1841 // There are always 10 list items in staticList10_T. |
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1842 li = listarg->vval.v_list->lv_first; |
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1843 for (i = 0; i < 10; ++i) |
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1844 { |
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1845 s = rsm.sm_match->startp[i]; |
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1846 if (s == NULL || rsm.sm_match->endp[i] == NULL) |
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1847 s = NULL; |
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1848 else |
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1849 s = vim_strnsave(s, rsm.sm_match->endp[i] - s); |
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1850 li->li_tv.v_type = VAR_STRING; |
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1851 li->li_tv.vval.v_string = s; |
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1852 li = li->li_next; |
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1853 } |
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1854 return argskip + 1; |
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1855 } |
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1856 |
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1857 static void |
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1858 clear_submatch_list(staticList10_T *sl) |
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1859 { |
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1860 int i; |
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1861 |
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1862 for (i = 0; i < 10; ++i) |
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1863 vim_free(sl->sl_items[i].li_tv.vval.v_string); |
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1864 } |
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1865 #endif |
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1866 |
| 7 | 1867 /* |
| 1868 * vim_regsub() - perform substitutions after a vim_regexec() or | |
| 1869 * vim_regexec_multi() match. | |
| 1870 * | |
| 1871 * If "copy" is TRUE really copy into "dest". | |
| 1872 * If "copy" is FALSE nothing is copied, this is just to find out the length | |
| 1873 * of the result. | |
| 1874 * | |
| 1875 * If "backslash" is TRUE, a backslash will be removed later, need to double | |
| 1876 * them to keep them, and insert a backslash before a CR to avoid it being | |
| 1877 * replaced with a line break later. | |
| 1878 * | |
| 1879 * Note: The matched text must not change between the call of | |
| 1880 * vim_regexec()/vim_regexec_multi() and vim_regsub()! It would make the back | |
| 1881 * references invalid! | |
| 1882 * | |
| 1883 * Returns the size of the replacement, including terminating NUL. | |
| 1884 */ | |
| 1885 int | |
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1886 vim_regsub( |
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1887 regmatch_T *rmp, |
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1888 char_u *source, |
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1889 typval_T *expr, |
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1890 char_u *dest, |
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1891 int copy, |
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1892 int magic, |
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1893 int backslash) |
| 7 | 1894 { |
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1895 int result; |
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1896 regexec_T rex_save; |
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1897 int rex_in_use_save = rex_in_use; |
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1898 |
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1899 if (rex_in_use) |
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1900 // Being called recursively, save the state. |
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1901 rex_save = rex; |
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1902 rex_in_use = TRUE; |
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1903 |
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1904 rex.reg_match = rmp; |
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1905 rex.reg_mmatch = NULL; |
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1906 rex.reg_maxline = 0; |
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1907 rex.reg_buf = curbuf; |
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1908 rex.reg_line_lbr = TRUE; |
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1909 result = vim_regsub_both(source, expr, dest, copy, magic, backslash); |
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1910 |
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1911 rex_in_use = rex_in_use_save; |
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1912 if (rex_in_use) |
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1913 rex = rex_save; |
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1914 |
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1915 return result; |
| 7 | 1916 } |
| 1917 | |
| 1918 int | |
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1919 vim_regsub_multi( |
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1920 regmmatch_T *rmp, |
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1921 linenr_T lnum, |
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1922 char_u *source, |
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1923 char_u *dest, |
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1924 int copy, |
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1925 int magic, |
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1926 int backslash) |
| 7 | 1927 { |
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1928 int result; |
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1929 regexec_T rex_save; |
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1930 int rex_in_use_save = rex_in_use; |
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1931 |
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1932 if (rex_in_use) |
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1933 // Being called recursively, save the state. |
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1934 rex_save = rex; |
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1935 rex_in_use = TRUE; |
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1936 |
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1937 rex.reg_match = NULL; |
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1938 rex.reg_mmatch = rmp; |
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1939 rex.reg_buf = curbuf; // always works on the current buffer! |
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1940 rex.reg_firstlnum = lnum; |
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1941 rex.reg_maxline = curbuf->b_ml.ml_line_count - lnum; |
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1942 rex.reg_line_lbr = FALSE; |
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1943 result = vim_regsub_both(source, NULL, dest, copy, magic, backslash); |
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1944 |
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1945 rex_in_use = rex_in_use_save; |
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1946 if (rex_in_use) |
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1947 rex = rex_save; |
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1948 |
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1949 return result; |
| 7 | 1950 } |
| 1951 | |
| 1952 static int | |
|
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1953 vim_regsub_both( |
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1954 char_u *source, |
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1955 typval_T *expr, |
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1956 char_u *dest, |
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1957 int copy, |
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1958 int magic, |
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1959 int backslash) |
| 7 | 1960 { |
| 1961 char_u *src; | |
| 1962 char_u *dst; | |
| 1963 char_u *s; | |
| 1964 int c; | |
| 772 | 1965 int cc; |
| 7 | 1966 int no = -1; |
| 4244 | 1967 fptr_T func_all = (fptr_T)NULL; |
| 1968 fptr_T func_one = (fptr_T)NULL; | |
|
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1969 linenr_T clnum = 0; // init for GCC |
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1970 int len = 0; // init for GCC |
| 7 | 1971 #ifdef FEAT_EVAL |
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1972 static char_u *eval_result = NULL; |
| 7 | 1973 #endif |
| 1974 | |
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1975 // Be paranoid... |
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1976 if ((source == NULL && expr == NULL) || dest == NULL) |
| 7 | 1977 { |
|
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1978 emsg(_(e_null)); |
| 7 | 1979 return 0; |
| 1980 } | |
| 1981 if (prog_magic_wrong()) | |
| 1982 return 0; | |
| 1983 src = source; | |
| 1984 dst = dest; | |
| 1985 | |
| 1986 /* | |
| 1987 * When the substitute part starts with "\=" evaluate it as an expression. | |
| 1988 */ | |
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1989 if (expr != NULL || (source[0] == '\\' && source[1] == '=')) |
| 7 | 1990 { |
| 1991 #ifdef FEAT_EVAL | |
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1992 // To make sure that the length doesn't change between checking the |
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1993 // length and copying the string, and to speed up things, the |
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1994 // resulting string is saved from the call with "copy" == FALSE to the |
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1995 // call with "copy" == TRUE. |
| 7 | 1996 if (copy) |
| 1997 { | |
| 1998 if (eval_result != NULL) | |
| 1999 { | |
| 2000 STRCPY(dest, eval_result); | |
| 2001 dst += STRLEN(eval_result); | |
|
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2002 VIM_CLEAR(eval_result); |
| 7 | 2003 } |
| 2004 } | |
| 2005 else | |
| 2006 { | |
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2007 int prev_can_f_submatch = can_f_submatch; |
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2008 regsubmatch_T rsm_save; |
| 7 | 2009 |
| 2010 vim_free(eval_result); | |
| 2011 | |
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2012 // The expression may contain substitute(), which calls us |
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2013 // recursively. Make sure submatch() gets the text from the first |
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2014 // level. |
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2015 if (can_f_submatch) |
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2016 rsm_save = rsm; |
| 7 | 2017 can_f_submatch = TRUE; |
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2018 rsm.sm_match = rex.reg_match; |
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2019 rsm.sm_mmatch = rex.reg_mmatch; |
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2020 rsm.sm_firstlnum = rex.reg_firstlnum; |
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2021 rsm.sm_maxline = rex.reg_maxline; |
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2022 rsm.sm_line_lbr = rex.reg_line_lbr; |
| 7 | 2023 |
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2024 if (expr != NULL) |
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2025 { |
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2026 typval_T argv[2]; |
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2027 char_u buf[NUMBUFLEN]; |
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2028 typval_T rettv; |
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2029 staticList10_T matchList; |
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2030 funcexe_T funcexe; |
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2031 |
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2032 rettv.v_type = VAR_STRING; |
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2033 rettv.vval.v_string = NULL; |
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2034 argv[0].v_type = VAR_LIST; |
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2035 argv[0].vval.v_list = &matchList.sl_list; |
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2036 matchList.sl_list.lv_len = 0; |
|
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2037 CLEAR_FIELD(funcexe); |
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2038 funcexe.argv_func = fill_submatch_list; |
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2039 funcexe.evaluate = TRUE; |
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2040 if (expr->v_type == VAR_FUNC) |
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2041 { |
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2042 s = expr->vval.v_string; |
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2043 call_func(s, -1, &rettv, 1, argv, &funcexe); |
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2044 } |
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2045 else if (expr->v_type == VAR_PARTIAL) |
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2046 { |
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2047 partial_T *partial = expr->vval.v_partial; |
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2048 |
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2049 s = partial_name(partial); |
|
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2050 funcexe.partial = partial; |
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2051 call_func(s, -1, &rettv, 1, argv, &funcexe); |
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2052 } |
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2053 if (matchList.sl_list.lv_len > 0) |
|
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2054 // fill_submatch_list() was called |
|
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2055 clear_submatch_list(&matchList); |
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2056 |
|
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2057 if (rettv.v_type == VAR_UNKNOWN) |
|
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2058 // something failed, no need to report another error |
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2059 eval_result = NULL; |
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2060 else |
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2061 { |
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2062 eval_result = tv_get_string_buf_chk(&rettv, buf); |
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2063 if (eval_result != NULL) |
|
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2064 eval_result = vim_strsave(eval_result); |
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2065 } |
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2066 clear_tv(&rettv); |
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2067 } |
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2068 else |
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2069 eval_result = eval_to_string(source + 2, NULL, TRUE); |
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2070 |
| 7 | 2071 if (eval_result != NULL) |
| 2072 { | |
|
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|
2073 int had_backslash = FALSE; |
|
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2074 |
|
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2075 for (s = eval_result; *s != NUL; MB_PTR_ADV(s)) |
| 7 | 2076 { |
|
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2077 // Change NL to CR, so that it becomes a line break, |
|
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parents:
18576
diff
changeset
|
2078 // unless called from vim_regexec_nl(). |
|
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parents:
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diff
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|
2079 // Skip over a backslashed character. |
|
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Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2080 if (*s == NL && !rsm.sm_line_lbr) |
| 7 | 2081 *s = CAR; |
| 2082 else if (*s == '\\' && s[1] != NUL) | |
|
2125
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2012
diff
changeset
|
2083 { |
| 7 | 2084 ++s; |
| 2173 | 2085 /* Change NL to CR here too, so that this works: |
| 2086 * :s/abc\\\ndef/\="aaa\\\nbbb"/ on text: | |
| 2087 * abc\ | |
| 2088 * def | |
| 2904 | 2089 * Not when called from vim_regexec_nl(). |
| 2173 | 2090 */ |
|
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Christian Brabandt <cb@256bit.org>
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10187
diff
changeset
|
2091 if (*s == NL && !rsm.sm_line_lbr) |
| 2173 | 2092 *s = CAR; |
|
2125
b8744d1982d1
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2012
diff
changeset
|
2093 had_backslash = TRUE; |
|
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diff
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|
2094 } |
|
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diff
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|
2095 } |
|
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parents:
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diff
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|
2096 if (had_backslash && backslash) |
|
b8744d1982d1
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2012
diff
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|
2097 { |
|
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18576
diff
changeset
|
2098 // Backslashes will be consumed, need to double them. |
|
2125
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parents:
2012
diff
changeset
|
2099 s = vim_strsave_escaped(eval_result, (char_u *)"\\"); |
|
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diff
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|
2100 if (s != NULL) |
|
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diff
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|
2101 { |
|
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parents:
2012
diff
changeset
|
2102 vim_free(eval_result); |
|
b8744d1982d1
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2012
diff
changeset
|
2103 eval_result = s; |
|
b8744d1982d1
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Bram Moolenaar <bram@zimbu.org>
parents:
2012
diff
changeset
|
2104 } |
| 7 | 2105 } |
| 2106 | |
| 2107 dst += STRLEN(eval_result); | |
| 2108 } | |
| 2109 | |
|
10245
d76ccdacb41e
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Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2110 can_f_submatch = prev_can_f_submatch; |
|
d76ccdacb41e
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Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2111 if (can_f_submatch) |
|
d76ccdacb41e
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parents:
10187
diff
changeset
|
2112 rsm = rsm_save; |
| 7 | 2113 } |
| 2114 #endif | |
| 2115 } | |
| 2116 else | |
| 2117 while ((c = *src++) != NUL) | |
| 2118 { | |
| 2119 if (c == '&' && magic) | |
| 2120 no = 0; | |
| 2121 else if (c == '\\' && *src != NUL) | |
| 2122 { | |
| 2123 if (*src == '&' && !magic) | |
| 2124 { | |
| 2125 ++src; | |
| 2126 no = 0; | |
| 2127 } | |
| 2128 else if ('0' <= *src && *src <= '9') | |
| 2129 { | |
| 2130 no = *src++ - '0'; | |
| 2131 } | |
| 2132 else if (vim_strchr((char_u *)"uUlLeE", *src)) | |
| 2133 { | |
| 2134 switch (*src++) | |
| 2135 { | |
| 4244 | 2136 case 'u': func_one = (fptr_T)do_upper; |
| 7 | 2137 continue; |
| 4244 | 2138 case 'U': func_all = (fptr_T)do_Upper; |
| 7 | 2139 continue; |
| 4244 | 2140 case 'l': func_one = (fptr_T)do_lower; |
| 7 | 2141 continue; |
| 4244 | 2142 case 'L': func_all = (fptr_T)do_Lower; |
| 7 | 2143 continue; |
| 2144 case 'e': | |
| 4244 | 2145 case 'E': func_one = func_all = (fptr_T)NULL; |
| 7 | 2146 continue; |
| 2147 } | |
| 2148 } | |
| 2149 } | |
|
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patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
2150 if (no < 0) // Ordinary character. |
| 7 | 2151 { |
| 798 | 2152 if (c == K_SPECIAL && src[0] != NUL && src[1] != NUL) |
| 2153 { | |
|
18812
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parents:
18576
diff
changeset
|
2154 // Copy a special key as-is. |
| 798 | 2155 if (copy) |
| 2156 { | |
| 2157 *dst++ = c; | |
| 2158 *dst++ = *src++; | |
| 2159 *dst++ = *src++; | |
| 2160 } | |
| 2161 else | |
| 2162 { | |
| 2163 dst += 3; | |
| 2164 src += 2; | |
| 2165 } | |
| 2166 continue; | |
| 2167 } | |
| 2168 | |
| 7 | 2169 if (c == '\\' && *src != NUL) |
| 2170 { | |
|
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parents:
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diff
changeset
|
2171 // Check for abbreviations -- webb |
| 7 | 2172 switch (*src) |
| 2173 { | |
| 2174 case 'r': c = CAR; ++src; break; | |
| 2175 case 'n': c = NL; ++src; break; | |
| 2176 case 't': c = TAB; ++src; break; | |
|
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diff
changeset
|
2177 // Oh no! \e already has meaning in subst pat :-( |
|
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18576
diff
changeset
|
2178 // case 'e': c = ESC; ++src; break; |
| 7 | 2179 case 'b': c = Ctrl_H; ++src; break; |
| 2180 | |
|
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diff
changeset
|
2181 // If "backslash" is TRUE the backslash will be removed |
|
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diff
changeset
|
2182 // later. Used to insert a literal CR. |
| 7 | 2183 default: if (backslash) |
| 2184 { | |
| 2185 if (copy) | |
| 2186 *dst = '\\'; | |
| 2187 ++dst; | |
| 2188 } | |
| 2189 c = *src++; | |
| 2190 } | |
| 2191 } | |
| 798 | 2192 else if (has_mbyte) |
| 2193 c = mb_ptr2char(src - 1); | |
| 7 | 2194 |
|
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diff
changeset
|
2195 // Write to buffer, if copy is set. |
| 4244 | 2196 if (func_one != (fptr_T)NULL) |
|
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changeset
|
2197 // Turbo C complains without the typecast |
| 4244 | 2198 func_one = (fptr_T)(func_one(&cc, c)); |
| 2199 else if (func_all != (fptr_T)NULL) | |
|
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|
2200 // Turbo C complains without the typecast |
| 4244 | 2201 func_all = (fptr_T)(func_all(&cc, c)); |
|
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changeset
|
2202 else // just copy |
| 772 | 2203 cc = c; |
| 2204 | |
| 2205 if (has_mbyte) | |
| 7 | 2206 { |
|
2307
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|
2207 int totlen = mb_ptr2len(src - 1); |
|
81527f127fb1
Fix: Composing characters in :s substitute text were dropped.
Bram Moolenaar <bram@vim.org>
parents:
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diff
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|
2208 |
| 7 | 2209 if (copy) |
| 772 | 2210 mb_char2bytes(cc, dst); |
| 2211 dst += mb_char2len(cc) - 1; | |
|
2307
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parents:
2247
diff
changeset
|
2212 if (enc_utf8) |
|
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diff
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|
2213 { |
|
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Bram Moolenaar <bram@vim.org>
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diff
changeset
|
2214 int clen = utf_ptr2len(src - 1); |
|
81527f127fb1
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Bram Moolenaar <bram@vim.org>
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diff
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|
2215 |
|
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diff
changeset
|
2216 // If the character length is shorter than "totlen", there |
|
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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
|
2217 // are composing characters; copy them as-is. |
|
2307
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|
2218 if (clen < totlen) |
|
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parents:
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diff
changeset
|
2219 { |
|
81527f127fb1
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diff
changeset
|
2220 if (copy) |
|
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parents:
2247
diff
changeset
|
2221 mch_memmove(dst + 1, src - 1 + clen, |
|
81527f127fb1
Fix: Composing characters in :s substitute text were dropped.
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
2222 (size_t)(totlen - clen)); |
|
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parents:
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diff
changeset
|
2223 dst += totlen - clen; |
|
81527f127fb1
Fix: Composing characters in :s substitute text were dropped.
Bram Moolenaar <bram@vim.org>
parents:
2247
diff
changeset
|
2224 } |
|
81527f127fb1
Fix: Composing characters in :s substitute text were dropped.
Bram Moolenaar <bram@vim.org>
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diff
changeset
|
2225 } |
|
81527f127fb1
Fix: Composing characters in :s substitute text were dropped.
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
2226 src += totlen - 1; |
| 7 | 2227 } |
|
15603
639b8318472c
patch 8.1.0809: too many #ifdefs
Bram Moolenaar <Bram@vim.org>
parents:
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diff
changeset
|
2228 else if (copy) |
| 772 | 2229 *dst = cc; |
| 7 | 2230 dst++; |
| 2231 } | |
| 2232 else | |
| 2233 { | |
| 2234 if (REG_MULTI) | |
| 2235 { | |
|
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Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2236 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
|
2237 if (clnum < 0 || rex.reg_mmatch->endpos[no].lnum < 0) |
| 7 | 2238 s = NULL; |
| 2239 else | |
| 2240 { | |
|
10245
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Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2241 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
|
2242 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
|
2243 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
|
2244 - rex.reg_mmatch->startpos[no].col; |
| 7 | 2245 else |
| 2246 len = (int)STRLEN(s); | |
| 2247 } | |
| 2248 } | |
| 2249 else | |
| 2250 { | |
|
10245
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commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2251 s = rex.reg_match->startp[no]; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
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10187
diff
changeset
|
2252 if (rex.reg_match->endp[no] == NULL) |
| 7 | 2253 s = NULL; |
| 2254 else | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2255 len = (int)(rex.reg_match->endp[no] - s); |
| 7 | 2256 } |
| 2257 if (s != NULL) | |
| 2258 { | |
| 2259 for (;;) | |
| 2260 { | |
| 2261 if (len == 0) | |
| 2262 { | |
| 2263 if (REG_MULTI) | |
| 2264 { | |
|
10245
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commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2265 if (rex.reg_mmatch->endpos[no].lnum == clnum) |
| 7 | 2266 break; |
| 2267 if (copy) | |
| 2268 *dst = CAR; | |
| 2269 ++dst; | |
| 2270 s = reg_getline(++clnum); | |
|
10245
d76ccdacb41e
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Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2271 if (rex.reg_mmatch->endpos[no].lnum == clnum) |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
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10187
diff
changeset
|
2272 len = rex.reg_mmatch->endpos[no].col; |
| 7 | 2273 else |
| 2274 len = (int)STRLEN(s); | |
| 2275 } | |
| 2276 else | |
| 2277 break; | |
| 2278 } | |
|
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Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
2279 else if (*s == NUL) // we hit NUL. |
| 7 | 2280 { |
| 2281 if (copy) | |
|
15470
55ccc2d353bd
patch 8.1.0743: giving error messages is not flexible
Bram Moolenaar <Bram@vim.org>
parents:
15339
diff
changeset
|
2282 emsg(_(e_re_damg)); |
| 7 | 2283 goto exit; |
| 2284 } | |
| 2285 else | |
| 2286 { | |
| 2287 if (backslash && (*s == CAR || *s == '\\')) | |
| 2288 { | |
| 2289 /* | |
| 2290 * Insert a backslash in front of a CR, otherwise | |
| 2291 * it will be replaced by a line break. | |
| 2292 * Number of backslashes will be halved later, | |
| 2293 * double them here. | |
| 2294 */ | |
| 2295 if (copy) | |
| 2296 { | |
| 2297 dst[0] = '\\'; | |
| 2298 dst[1] = *s; | |
| 2299 } | |
| 2300 dst += 2; | |
| 2301 } | |
| 2302 else | |
| 2303 { | |
| 772 | 2304 if (has_mbyte) |
| 2305 c = mb_ptr2char(s); | |
| 2306 else | |
| 2307 c = *s; | |
| 2308 | |
| 4244 | 2309 if (func_one != (fptr_T)NULL) |
|
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diff
changeset
|
2310 // Turbo C complains without the typecast |
| 4244 | 2311 func_one = (fptr_T)(func_one(&cc, c)); |
| 2312 else if (func_all != (fptr_T)NULL) | |
|
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parents:
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diff
changeset
|
2313 // Turbo C complains without the typecast |
| 4244 | 2314 func_all = (fptr_T)(func_all(&cc, c)); |
|
18812
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parents:
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diff
changeset
|
2315 else // just copy |
| 772 | 2316 cc = c; |
| 2317 | |
| 2318 if (has_mbyte) | |
| 7 | 2319 { |
| 1332 | 2320 int l; |
| 2321 | |
|
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parents:
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diff
changeset
|
2322 // Copy composing characters separately, one |
|
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
2323 // at a time. |
| 1332 | 2324 if (enc_utf8) |
| 2325 l = utf_ptr2len(s) - 1; | |
| 2326 else | |
| 2327 l = mb_ptr2len(s) - 1; | |
| 772 | 2328 |
| 2329 s += l; | |
| 2330 len -= l; | |
| 2331 if (copy) | |
| 2332 mb_char2bytes(cc, dst); | |
| 2333 dst += mb_char2len(cc) - 1; | |
| 7 | 2334 } |
|
15603
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patch 8.1.0809: too many #ifdefs
Bram Moolenaar <Bram@vim.org>
parents:
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diff
changeset
|
2335 else if (copy) |
| 772 | 2336 *dst = cc; |
| 2337 dst++; | |
| 7 | 2338 } |
| 772 | 2339 |
| 7 | 2340 ++s; |
| 2341 --len; | |
| 2342 } | |
| 2343 } | |
| 2344 } | |
| 2345 no = -1; | |
| 2346 } | |
| 2347 } | |
| 2348 if (copy) | |
| 2349 *dst = NUL; | |
| 2350 | |
| 2351 exit: | |
| 2352 return (int)((dst - dest) + 1); | |
| 2353 } | |
| 2354 | |
| 2355 #ifdef FEAT_EVAL | |
| 2356 /* | |
| 2011 | 2357 * Call reg_getline() with the line numbers from the submatch. If a |
| 2358 * substitute() was used the reg_maxline and other values have been | |
| 2359 * overwritten. | |
| 2360 */ | |
| 2361 static char_u * | |
|
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c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
2362 reg_getline_submatch(linenr_T lnum) |
| 2011 | 2363 { |
| 2364 char_u *s; | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2365 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
|
2366 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
|
2367 |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2368 rex.reg_firstlnum = rsm.sm_firstlnum; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2369 rex.reg_maxline = rsm.sm_maxline; |
| 2011 | 2370 |
| 2371 s = reg_getline(lnum); | |
| 2372 | |
|
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commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2373 rex.reg_firstlnum = save_first; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2374 rex.reg_maxline = save_max; |
| 2011 | 2375 return s; |
| 2376 } | |
| 2377 | |
| 2378 /* | |
| 1209 | 2379 * Used for the submatch() function: get the string from the n'th submatch in |
| 7 | 2380 * allocated memory. |
| 2381 * Returns NULL when not in a ":s" command and for a non-existing submatch. | |
| 2382 */ | |
| 2383 char_u * | |
|
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c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
2384 reg_submatch(int no) |
| 7 | 2385 { |
| 2386 char_u *retval = NULL; | |
| 2387 char_u *s; | |
| 2388 int len; | |
| 2389 int round; | |
| 2390 linenr_T lnum; | |
| 2391 | |
| 840 | 2392 if (!can_f_submatch || no < 0) |
| 7 | 2393 return NULL; |
| 2394 | |
|
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commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2395 if (rsm.sm_match == NULL) |
| 7 | 2396 { |
| 2397 /* | |
| 2398 * First round: compute the length and allocate memory. | |
| 2399 * Second round: copy the text. | |
| 2400 */ | |
| 2401 for (round = 1; round <= 2; ++round) | |
| 2402 { | |
|
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commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2403 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
|
2404 if (lnum < 0 || rsm.sm_mmatch->endpos[no].lnum < 0) |
| 7 | 2405 return NULL; |
| 2406 | |
|
16040
13ab270dd68d
patch 8.1.1025: checking NULL pointer after addition
Bram Moolenaar <Bram@vim.org>
parents:
15967
diff
changeset
|
2407 s = reg_getline_submatch(lnum); |
|
13ab270dd68d
patch 8.1.1025: checking NULL pointer after addition
Bram Moolenaar <Bram@vim.org>
parents:
15967
diff
changeset
|
2408 if (s == NULL) // anti-crash check, cannot happen? |
| 7 | 2409 break; |
|
16040
13ab270dd68d
patch 8.1.1025: checking NULL pointer after addition
Bram Moolenaar <Bram@vim.org>
parents:
15967
diff
changeset
|
2410 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
|
2411 if (rsm.sm_mmatch->endpos[no].lnum == lnum) |
| 7 | 2412 { |
|
18812
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
2413 // 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
|
2414 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
|
2415 - rsm.sm_mmatch->startpos[no].col; |
| 7 | 2416 if (round == 2) |
| 418 | 2417 vim_strncpy(retval, s, len); |
| 7 | 2418 ++len; |
| 2419 } | |
| 2420 else | |
| 2421 { | |
|
18812
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
2422 // 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
|
2423 // lines completely and end line up to end col. |
| 7 | 2424 len = (int)STRLEN(s); |
| 2425 if (round == 2) | |
| 2426 { | |
| 2427 STRCPY(retval, s); | |
| 2428 retval[len] = '\n'; | |
| 2429 } | |
| 2430 ++len; | |
| 2431 ++lnum; | |
|
10245
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commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2432 while (lnum < rsm.sm_mmatch->endpos[no].lnum) |
| 7 | 2433 { |
| 2011 | 2434 s = reg_getline_submatch(lnum++); |
| 7 | 2435 if (round == 2) |
| 2436 STRCPY(retval + len, s); | |
| 2437 len += (int)STRLEN(s); | |
| 2438 if (round == 2) | |
| 2439 retval[len] = '\n'; | |
| 2440 ++len; | |
| 2441 } | |
| 2442 if (round == 2) | |
| 2011 | 2443 STRNCPY(retval + len, reg_getline_submatch(lnum), |
|
10245
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commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2444 rsm.sm_mmatch->endpos[no].col); |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2445 len += rsm.sm_mmatch->endpos[no].col; |
| 7 | 2446 if (round == 2) |
| 2447 retval[len] = NUL; | |
| 2448 ++len; | |
| 2449 } | |
| 2450 | |
| 840 | 2451 if (retval == NULL) |
| 7 | 2452 { |
|
16768
695d9ef00b03
patch 8.1.1386: unessesary type casts for lalloc()
Bram Moolenaar <Bram@vim.org>
parents:
16764
diff
changeset
|
2453 retval = alloc(len); |
| 840 | 2454 if (retval == NULL) |
| 7 | 2455 return NULL; |
| 2456 } | |
| 2457 } | |
| 2458 } | |
| 2459 else | |
| 2460 { | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2461 s = rsm.sm_match->startp[no]; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2462 if (s == NULL || rsm.sm_match->endp[no] == NULL) |
| 7 | 2463 retval = NULL; |
| 2464 else | |
|
20830
9064044fd4f6
patch 8.2.0967: unnecessary type casts for vim_strnsave()
Bram Moolenaar <Bram@vim.org>
parents:
20113
diff
changeset
|
2465 retval = vim_strnsave(s, rsm.sm_match->endp[no] - s); |
| 7 | 2466 } |
| 2467 | |
| 2468 return retval; | |
| 2469 } | |
| 5794 | 2470 |
| 2471 /* | |
| 2472 * Used for the submatch() function with the optional non-zero argument: get | |
| 2473 * the list of strings from the n'th submatch in allocated memory with NULs | |
| 2474 * represented in NLs. | |
| 2475 * Returns a list of allocated strings. Returns NULL when not in a ":s" | |
| 2476 * command, for a non-existing submatch and for any error. | |
| 2477 */ | |
| 2478 list_T * | |
|
7833
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
2479 reg_submatch_list(int no) |
| 5794 | 2480 { |
| 2481 char_u *s; | |
| 2482 linenr_T slnum; | |
| 2483 linenr_T elnum; | |
| 2484 colnr_T scol; | |
| 2485 colnr_T ecol; | |
| 2486 int i; | |
| 2487 list_T *list; | |
| 2488 int error = FALSE; | |
| 2489 | |
| 2490 if (!can_f_submatch || no < 0) | |
| 2491 return NULL; | |
| 2492 | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2493 if (rsm.sm_match == NULL) |
| 5794 | 2494 { |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2495 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
|
2496 elnum = rsm.sm_mmatch->endpos[no].lnum; |
| 5794 | 2497 if (slnum < 0 || elnum < 0) |
| 2498 return NULL; | |
| 2499 | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2500 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
|
2501 ecol = rsm.sm_mmatch->endpos[no].col; |
| 5794 | 2502 |
| 2503 list = list_alloc(); | |
| 2504 if (list == NULL) | |
| 2505 return NULL; | |
| 2506 | |
| 2507 s = reg_getline_submatch(slnum) + scol; | |
| 2508 if (slnum == elnum) | |
| 2509 { | |
| 2510 if (list_append_string(list, s, ecol - scol) == FAIL) | |
| 2511 error = TRUE; | |
| 2512 } | |
| 2513 else | |
| 2514 { | |
| 2515 if (list_append_string(list, s, -1) == FAIL) | |
| 2516 error = TRUE; | |
| 2517 for (i = 1; i < elnum - slnum; i++) | |
| 2518 { | |
| 2519 s = reg_getline_submatch(slnum + i); | |
| 2520 if (list_append_string(list, s, -1) == FAIL) | |
| 2521 error = TRUE; | |
| 2522 } | |
| 2523 s = reg_getline_submatch(elnum); | |
| 2524 if (list_append_string(list, s, ecol) == FAIL) | |
| 2525 error = TRUE; | |
| 2526 } | |
| 2527 } | |
| 2528 else | |
| 2529 { | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2530 s = rsm.sm_match->startp[no]; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2531 if (s == NULL || rsm.sm_match->endp[no] == NULL) |
| 5794 | 2532 return NULL; |
| 2533 list = list_alloc(); | |
| 2534 if (list == NULL) | |
| 2535 return NULL; | |
| 2536 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
|
2537 (int)(rsm.sm_match->endp[no] - s)) == FAIL) |
| 5794 | 2538 error = TRUE; |
| 2539 } | |
| 2540 | |
| 2541 if (error) | |
| 2542 { | |
|
8863
e1b84109506a
commit https://github.com/vim/vim/commit/107e1eef1df3b786ad3ad49fbdb9e058649303b5
Christian Brabandt <cb@256bit.org>
parents:
8825
diff
changeset
|
2543 list_free(list); |
| 5794 | 2544 return NULL; |
| 2545 } | |
| 2546 return list; | |
| 2547 } | |
| 7 | 2548 #endif |
| 4444 | 2549 |
|
19405
08f4dc2ba716
patch 8.2.0260: several lines of code are duplicated
Bram Moolenaar <Bram@vim.org>
parents:
19384
diff
changeset
|
2550 /* |
|
08f4dc2ba716
patch 8.2.0260: several lines of code are duplicated
Bram Moolenaar <Bram@vim.org>
parents:
19384
diff
changeset
|
2551 * 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
|
2552 */ |
|
08f4dc2ba716
patch 8.2.0260: several lines of code are duplicated
Bram Moolenaar <Bram@vim.org>
parents:
19384
diff
changeset
|
2553 static void |
|
08f4dc2ba716
patch 8.2.0260: several lines of code are duplicated
Bram Moolenaar <Bram@vim.org>
parents:
19384
diff
changeset
|
2554 init_regexec_multi( |
|
08f4dc2ba716
patch 8.2.0260: several lines of code are duplicated
Bram Moolenaar <Bram@vim.org>
parents:
19384
diff
changeset
|
2555 regmmatch_T *rmp, |
|
08f4dc2ba716
patch 8.2.0260: several lines of code are duplicated
Bram Moolenaar <Bram@vim.org>
parents:
19384
diff
changeset
|
2556 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
|
2557 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
|
2558 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
|
2559 { |
|
08f4dc2ba716
patch 8.2.0260: several lines of code are duplicated
Bram Moolenaar <Bram@vim.org>
parents:
19384
diff
changeset
|
2560 rex.reg_match = NULL; |
|
08f4dc2ba716
patch 8.2.0260: several lines of code are duplicated
Bram Moolenaar <Bram@vim.org>
parents:
19384
diff
changeset
|
2561 rex.reg_mmatch = rmp; |
|
08f4dc2ba716
patch 8.2.0260: several lines of code are duplicated
Bram Moolenaar <Bram@vim.org>
parents:
19384
diff
changeset
|
2562 rex.reg_buf = buf; |
|
08f4dc2ba716
patch 8.2.0260: several lines of code are duplicated
Bram Moolenaar <Bram@vim.org>
parents:
19384
diff
changeset
|
2563 rex.reg_win = win; |
|
08f4dc2ba716
patch 8.2.0260: several lines of code are duplicated
Bram Moolenaar <Bram@vim.org>
parents:
19384
diff
changeset
|
2564 rex.reg_firstlnum = lnum; |
|
08f4dc2ba716
patch 8.2.0260: several lines of code are duplicated
Bram Moolenaar <Bram@vim.org>
parents:
19384
diff
changeset
|
2565 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
|
2566 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
|
2567 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
|
2568 rex.reg_icombine = FALSE; |
|
08f4dc2ba716
patch 8.2.0260: several lines of code are duplicated
Bram Moolenaar <Bram@vim.org>
parents:
19384
diff
changeset
|
2569 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
|
2570 } |
|
08f4dc2ba716
patch 8.2.0260: several lines of code are duplicated
Bram Moolenaar <Bram@vim.org>
parents:
19384
diff
changeset
|
2571 |
|
18019
68fd5296bf73
patch 8.1.2005: the regexp.c file is too big
Bram Moolenaar <Bram@vim.org>
parents:
17966
diff
changeset
|
2572 #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
|
2573 |
| 4444 | 2574 static regengine_T bt_regengine = |
| 2575 { | |
| 2576 bt_regcomp, | |
|
4805
66803af09906
updated for version 7.3.1149
Bram Moolenaar <bram@vim.org>
parents:
4770
diff
changeset
|
2577 bt_regfree, |
| 4444 | 2578 bt_regexec_nl, |
| 6328 | 2579 bt_regexec_multi, |
| 2580 (char_u *)"" | |
| 4444 | 2581 }; |
| 2582 | |
| 2583 #include "regexp_nfa.c" | |
| 2584 | |
| 2585 static regengine_T nfa_regengine = | |
| 2586 { | |
| 2587 nfa_regcomp, | |
|
4805
66803af09906
updated for version 7.3.1149
Bram Moolenaar <bram@vim.org>
parents:
4770
diff
changeset
|
2588 nfa_regfree, |
| 4444 | 2589 nfa_regexec_nl, |
| 6328 | 2590 nfa_regexec_multi, |
| 2591 (char_u *)"" | |
| 4444 | 2592 }; |
| 2593 | |
|
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diff
changeset
|
2594 // Which regexp engine to use? Needed for vim_regcomp(). |
|
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parents:
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diff
changeset
|
2595 // Must match with 'regexpengine'. |
| 4444 | 2596 static int regexp_engine = 0; |
| 6328 | 2597 |
| 4444 | 2598 #ifdef DEBUG |
| 2599 static char_u regname[][30] = { | |
| 2600 "AUTOMATIC Regexp Engine", | |
|
4579
7a2be4a39423
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Bram Moolenaar <bram@vim.org>
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4505
diff
changeset
|
2601 "BACKTRACKING Regexp Engine", |
| 4444 | 2602 "NFA Regexp Engine" |
| 2603 }; | |
| 2604 #endif | |
| 2605 | |
| 2606 /* | |
| 2607 * Compile a regular expression into internal code. | |
|
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diff
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|
2608 * Returns the program in allocated memory. |
|
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diff
changeset
|
2609 * Use vim_regfree() to free the memory. |
|
66803af09906
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diff
changeset
|
2610 * Returns NULL for an error. |
| 4444 | 2611 */ |
| 2612 regprog_T * | |
|
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Christian Brabandt <cb@256bit.org>
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7807
diff
changeset
|
2613 vim_regcomp(char_u *expr_arg, int re_flags) |
| 4444 | 2614 { |
| 2615 regprog_T *prog = NULL; | |
| 2616 char_u *expr = expr_arg; | |
|
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patch 8.2.0035: saving and restoring called_emsg is clumsy
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18812
diff
changeset
|
2617 int called_emsg_before; |
| 4444 | 2618 |
| 2619 regexp_engine = p_re; | |
| 2620 | |
|
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diff
changeset
|
2621 // Check for prefix "\%#=", that sets the regexp engine |
| 4444 | 2622 if (STRNCMP(expr, "\\%#=", 4) == 0) |
| 2623 { | |
| 2624 int newengine = expr[4] - '0'; | |
| 2625 | |
| 2626 if (newengine == AUTOMATIC_ENGINE | |
| 2627 || newengine == BACKTRACKING_ENGINE | |
| 2628 || newengine == NFA_ENGINE) | |
| 2629 { | |
| 2630 regexp_engine = expr[4] - '0'; | |
| 2631 expr += 5; | |
| 2632 #ifdef DEBUG | |
|
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diff
changeset
|
2633 smsg("New regexp mode selected (%d): %s", |
| 5897 | 2634 regexp_engine, regname[newengine]); |
| 4444 | 2635 #endif |
| 2636 } | |
| 2637 else | |
| 2638 { | |
|
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diff
changeset
|
2639 emsg(_("E864: \\%#= can only be followed by 0, 1, or 2. The automatic engine will be used ")); |
| 4444 | 2640 regexp_engine = AUTOMATIC_ENGINE; |
| 2641 } | |
| 2642 } | |
|
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diff
changeset
|
2643 #ifdef DEBUG |
| 4444 | 2644 bt_regengine.expr = expr; |
| 2645 nfa_regengine.expr = expr; | |
|
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diff
changeset
|
2646 #endif |
|
15856
e44b7caaf373
patch 8.1.0935: old regexp engine may use invalid buffer
Bram Moolenaar <Bram@vim.org>
parents:
15854
diff
changeset
|
2647 // reg_iswordc() uses rex.reg_buf |
|
e44b7caaf373
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Bram Moolenaar <Bram@vim.org>
parents:
15854
diff
changeset
|
2648 rex.reg_buf = curbuf; |
| 4444 | 2649 |
| 2650 /* | |
| 2651 * First try the NFA engine, unless backtracking was requested. | |
| 2652 */ | |
|
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diff
changeset
|
2653 called_emsg_before = called_emsg; |
| 4444 | 2654 if (regexp_engine != BACKTRACKING_ENGINE) |
|
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12752
diff
changeset
|
2655 prog = nfa_regengine.regcomp(expr, |
| 6533 | 2656 re_flags + (regexp_engine == AUTOMATIC_ENGINE ? RE_AUTO : 0)); |
| 4444 | 2657 else |
| 2658 prog = bt_regengine.regcomp(expr, re_flags); | |
| 2659 | |
|
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diff
changeset
|
2660 // Check for error compiling regexp with initial engine. |
| 6328 | 2661 if (prog == NULL) |
| 4444 | 2662 { |
| 4460 | 2663 #ifdef BT_REGEXP_DEBUG_LOG |
|
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parents:
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diff
changeset
|
2664 if (regexp_engine != BACKTRACKING_ENGINE) // debugging log for NFA |
| 4444 | 2665 { |
| 2666 FILE *f; | |
| 4460 | 2667 f = fopen(BT_REGEXP_DEBUG_LOG_NAME, "a"); |
| 4444 | 2668 if (f) |
| 2669 { | |
|
4762
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4760
diff
changeset
|
2670 fprintf(f, "Syntax error in \"%s\"\n", expr); |
| 4444 | 2671 fclose(f); |
| 2672 } | |
| 2673 else | |
|
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diff
changeset
|
2674 semsg("(NFA) Could not open \"%s\" to write !!!", |
|
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12752
diff
changeset
|
2675 BT_REGEXP_DEBUG_LOG_NAME); |
| 4444 | 2676 } |
| 2677 #endif | |
| 2678 /* | |
| 6328 | 2679 * If the NFA engine failed, try the backtracking engine. |
| 6533 | 2680 * The NFA engine also fails for patterns that it can't handle well |
| 2681 * but are still valid patterns, thus a retry should work. | |
|
15935
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patch 8.1.0973: pattern with syntax error gives threee error messages
Bram Moolenaar <Bram@vim.org>
parents:
15860
diff
changeset
|
2682 * But don't try if an error message was given. |
| 6533 | 2683 */ |
|
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patch 8.2.0035: saving and restoring called_emsg is clumsy
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changeset
|
2684 if (regexp_engine == AUTOMATIC_ENGINE |
|
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Bram Moolenaar <Bram@vim.org>
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18812
diff
changeset
|
2685 && called_emsg == called_emsg_before) |
| 6328 | 2686 { |
| 6533 | 2687 regexp_engine = BACKTRACKING_ENGINE; |
|
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4760
diff
changeset
|
2688 prog = bt_regengine.regcomp(expr, re_flags); |
| 6328 | 2689 } |
|
4762
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diff
changeset
|
2690 } |
| 4444 | 2691 |
| 6328 | 2692 if (prog != NULL) |
| 2693 { | |
|
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|
2694 // Store the info needed to call regcomp() again when the engine turns |
|
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parents:
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diff
changeset
|
2695 // out to be very slow when executing it. |
| 6328 | 2696 prog->re_engine = regexp_engine; |
| 2697 prog->re_flags = re_flags; | |
| 2698 } | |
| 2699 | |
| 4444 | 2700 return prog; |
| 2701 } | |
| 2702 | |
| 2703 /* | |
|
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|
2704 * Free a compiled regexp program, returned by vim_regcomp(). |
|
66803af09906
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|
2705 */ |
|
66803af09906
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|
2706 void |
|
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7807
diff
changeset
|
2707 vim_regfree(regprog_T *prog) |
|
4805
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|
2708 { |
|
66803af09906
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|
2709 if (prog != NULL) |
|
66803af09906
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diff
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|
2710 prog->engine->regfree(prog); |
|
66803af09906
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|
2711 } |
|
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|
2712 |
|
18019
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patch 8.1.2005: the regexp.c file is too big
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diff
changeset
|
2713 #if defined(EXITFREE) || defined(PROTO) |
|
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patch 8.1.2005: the regexp.c file is too big
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|
2714 void |
|
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patch 8.1.2005: the regexp.c file is too big
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diff
changeset
|
2715 free_regexp_stuff(void) |
|
68fd5296bf73
patch 8.1.2005: the regexp.c file is too big
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diff
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|
2716 { |
|
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patch 8.1.2005: the regexp.c file is too big
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changeset
|
2717 ga_clear(®stack); |
|
68fd5296bf73
patch 8.1.2005: the regexp.c file is too big
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diff
changeset
|
2718 ga_clear(&backpos); |
|
68fd5296bf73
patch 8.1.2005: the regexp.c file is too big
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diff
changeset
|
2719 vim_free(reg_tofree); |
|
68fd5296bf73
patch 8.1.2005: the regexp.c file is too big
Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
2720 vim_free(reg_prev_sub); |
|
68fd5296bf73
patch 8.1.2005: the regexp.c file is too big
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diff
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|
2721 } |
|
68fd5296bf73
patch 8.1.2005: the regexp.c file is too big
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|
2722 #endif |
|
68fd5296bf73
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diff
changeset
|
2723 |
| 6328 | 2724 #ifdef FEAT_EVAL |
| 2725 static void | |
|
7833
c079097365f3
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Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
2726 report_re_switch(char_u *pat) |
| 6328 | 2727 { |
| 2728 if (p_verbose > 0) | |
| 2729 { | |
| 2730 verbose_enter(); | |
|
15543
dd725a8ab112
patch 8.1.0779: argument for message functions is inconsistent
Bram Moolenaar <Bram@vim.org>
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15480
diff
changeset
|
2731 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
|
2732 msg_puts((char *)pat); |
| 6328 | 2733 verbose_leave(); |
| 2734 } | |
| 2735 } | |
| 2736 #endif | |
| 2737 | |
|
15555
d89c5b339c2a
patch 8.1.0785: depending on the configuration some functions are unused
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diff
changeset
|
2738 #if (defined(FEAT_X11) && (defined(FEAT_TITLE) || defined(FEAT_XCLIPBOARD))) \ |
|
d89c5b339c2a
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diff
changeset
|
2739 || defined(PROTO) |
|
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diff
changeset
|
2740 /* |
|
15306
7fff2d18e191
patch 8.1.0661: clipboard regexp might be used recursively
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diff
changeset
|
2741 * Return whether "prog" is currently being executed. |
|
7fff2d18e191
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diff
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|
2742 */ |
|
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diff
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|
2743 int |
|
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diff
changeset
|
2744 regprog_in_use(regprog_T *prog) |
|
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|
2745 { |
|
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diff
changeset
|
2746 return prog->re_in_use; |
|
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diff
changeset
|
2747 } |
|
15555
d89c5b339c2a
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changeset
|
2748 #endif |
|
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|
2749 |
|
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diff
changeset
|
2750 /* |
| 4444 | 2751 * Match a regexp against a string. |
| 2752 * "rmp->regprog" is a compiled regexp as returned by vim_regcomp(). | |
| 6375 | 2753 * Note: "rmp->regprog" may be freed and changed. |
| 4444 | 2754 * Uses curbuf for line count and 'iskeyword'. |
| 6328 | 2755 * When "nl" is TRUE consider a "\n" in "line" to be a line break. |
| 4444 | 2756 * |
| 2757 * Return TRUE if there is a match, FALSE if not. | |
| 2758 */ | |
| 6328 | 2759 static int |
|
11529
998d2cf59caa
patch 8.0.0647: syntax highlighting can make cause a freeze
Christian Brabandt <cb@256bit.org>
parents:
11527
diff
changeset
|
2760 vim_regexec_string( |
|
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7807
diff
changeset
|
2761 regmatch_T *rmp, |
|
18812
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changeset
|
2762 char_u *line, // string to match against |
|
d34ec6fe207d
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18576
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changeset
|
2763 colnr_T col, // column to start looking for match |
|
7833
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Christian Brabandt <cb@256bit.org>
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7807
diff
changeset
|
2764 int nl) |
| 6328 | 2765 { |
|
10245
d76ccdacb41e
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parents:
10187
diff
changeset
|
2766 int result; |
|
d76ccdacb41e
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Christian Brabandt <cb@256bit.org>
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10187
diff
changeset
|
2767 regexec_T rex_save; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
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10187
diff
changeset
|
2768 int rex_in_use_save = rex_in_use; |
|
d76ccdacb41e
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10187
diff
changeset
|
2769 |
|
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changeset
|
2770 // Cannot use the same prog recursively, it contains state. |
|
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changeset
|
2771 if (rmp->regprog->re_in_use) |
|
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|
2772 { |
|
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changeset
|
2773 emsg(_(e_recursive)); |
|
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|
2774 return FALSE; |
|
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changeset
|
2775 } |
|
ffd834f893aa
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changeset
|
2776 rmp->regprog->re_in_use = TRUE; |
|
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|
2777 |
|
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10187
diff
changeset
|
2778 if (rex_in_use) |
|
14354
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diff
changeset
|
2779 // Being called recursively, save the state. |
|
10245
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diff
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|
2780 rex_save = rex; |
|
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|
2781 rex_in_use = TRUE; |
|
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|
2782 |
|
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|
2783 rex.reg_startp = NULL; |
|
d76ccdacb41e
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diff
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|
2784 rex.reg_endp = NULL; |
|
d76ccdacb41e
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|
2785 rex.reg_startpos = NULL; |
|
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commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
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|
2786 rex.reg_endpos = NULL; |
|
d76ccdacb41e
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|
2787 |
|
d76ccdacb41e
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diff
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|
2788 result = rmp->regprog->engine->regexec_nl(rmp, line, col, nl); |
|
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|
2789 rmp->regprog->re_in_use = FALSE; |
| 6328 | 2790 |
|
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|
2791 // NFA engine aborted because it's very slow. |
| 6328 | 2792 if (rmp->regprog->re_engine == AUTOMATIC_ENGINE |
| 2793 && result == NFA_TOO_EXPENSIVE) | |
| 2794 { | |
| 2795 int save_p_re = p_re; | |
| 2796 int re_flags = rmp->regprog->re_flags; | |
| 2797 char_u *pat = vim_strsave(((nfa_regprog_T *)rmp->regprog)->pattern); | |
| 2798 | |
| 2799 p_re = BACKTRACKING_ENGINE; | |
| 2800 vim_regfree(rmp->regprog); | |
| 2801 if (pat != NULL) | |
| 2802 { | |
| 2803 #ifdef FEAT_EVAL | |
| 2804 report_re_switch(pat); | |
| 2805 #endif | |
| 2806 rmp->regprog = vim_regcomp(pat, re_flags); | |
| 2807 if (rmp->regprog != NULL) | |
|
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2808 { |
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|
2809 rmp->regprog->re_in_use = TRUE; |
| 6328 | 2810 result = rmp->regprog->engine->regexec_nl(rmp, line, col, nl); |
|
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2811 rmp->regprog->re_in_use = FALSE; |
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2812 } |
| 6328 | 2813 vim_free(pat); |
| 2814 } | |
| 2815 | |
| 2816 p_re = save_p_re; | |
| 2817 } | |
|
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|
2818 |
|
d76ccdacb41e
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diff
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|
2819 rex_in_use = rex_in_use_save; |
|
d76ccdacb41e
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|
2820 if (rex_in_use) |
|
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diff
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|
2821 rex = rex_save; |
|
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2822 |
| 6390 | 2823 return result > 0; |
| 6328 | 2824 } |
| 2825 | |
| 6375 | 2826 /* |
| 2827 * Note: "*prog" may be freed and changed. | |
| 6390 | 2828 * Return TRUE if there is a match, FALSE if not. |
| 6375 | 2829 */ |
| 2830 int | |
|
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|
2831 vim_regexec_prog( |
|
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|
2832 regprog_T **prog, |
|
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diff
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|
2833 int ignore_case, |
|
c079097365f3
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diff
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|
2834 char_u *line, |
|
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diff
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|
2835 colnr_T col) |
| 6375 | 2836 { |
|
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|
2837 int r; |
|
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|
2838 regmatch_T regmatch; |
| 6375 | 2839 |
| 2840 regmatch.regprog = *prog; | |
| 2841 regmatch.rm_ic = ignore_case; | |
|
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|
2842 r = vim_regexec_string(®match, line, col, FALSE); |
| 6375 | 2843 *prog = regmatch.regprog; |
| 2844 return r; | |
| 2845 } | |
| 2846 | |
| 2847 /* | |
| 2848 * Note: "rmp->regprog" may be freed and changed. | |
| 6390 | 2849 * Return TRUE if there is a match, FALSE if not. |
| 6375 | 2850 */ |
| 4444 | 2851 int |
|
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|
2852 vim_regexec(regmatch_T *rmp, char_u *line, colnr_T col) |
| 4444 | 2853 { |
|
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|
2854 return vim_regexec_string(rmp, line, col, FALSE); |
| 4444 | 2855 } |
| 2856 | |
| 2857 /* | |
| 2858 * Like vim_regexec(), but consider a "\n" in "line" to be a line break. | |
| 6375 | 2859 * Note: "rmp->regprog" may be freed and changed. |
| 6390 | 2860 * Return TRUE if there is a match, FALSE if not. |
| 4444 | 2861 */ |
| 2862 int | |
|
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changeset
|
2863 vim_regexec_nl(regmatch_T *rmp, char_u *line, colnr_T col) |
| 4444 | 2864 { |
|
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|
2865 return vim_regexec_string(rmp, line, col, TRUE); |
| 4444 | 2866 } |
| 2867 | |
| 2868 /* | |
| 2869 * Match a regexp against multiple lines. | |
|
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|
2870 * "rmp->regprog" must be a compiled regexp as returned by vim_regcomp(). |
|
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|
2871 * Note: "rmp->regprog" may be freed and changed, even set to NULL. |
| 4444 | 2872 * Uses curbuf for line count and 'iskeyword'. |
| 2873 * | |
| 2874 * Return zero if there is no match. Return number of lines contained in the | |
| 2875 * match otherwise. | |
| 2876 */ | |
| 2877 long | |
|
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diff
changeset
|
2878 vim_regexec_multi( |
|
c079097365f3
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diff
changeset
|
2879 regmmatch_T *rmp, |
|
18812
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|
2880 win_T *win, // window in which to search or NULL |
|
d34ec6fe207d
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|
2881 buf_T *buf, // buffer in which to search |
|
d34ec6fe207d
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|
2882 linenr_T lnum, // nr of line to start looking for match |
|
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|
2883 colnr_T col, // column to start looking for match |
|
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patch 8.1.2394: using old C style comments
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|
2884 proftime_T *tm, // timeout limit or NULL |
|
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Bram Moolenaar <Bram@vim.org>
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changeset
|
2885 int *timed_out) // flag is set when timeout limit reached |
| 4444 | 2886 { |
|
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diff
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|
2887 int result; |
|
d76ccdacb41e
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diff
changeset
|
2888 regexec_T rex_save; |
|
d76ccdacb41e
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diff
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|
2889 int rex_in_use_save = rex_in_use; |
|
d76ccdacb41e
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diff
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|
2890 |
|
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|
2891 // Cannot use the same prog recursively, it contains state. |
|
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|
2892 if (rmp->regprog->re_in_use) |
|
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|
2893 { |
|
15470
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patch 8.1.0743: giving error messages is not flexible
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changeset
|
2894 emsg(_(e_recursive)); |
|
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|
2895 return FALSE; |
|
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|
2896 } |
|
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|
2897 rmp->regprog->re_in_use = TRUE; |
|
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|
2898 |
|
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diff
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|
2899 if (rex_in_use) |
|
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|
2900 // Being called recursively, save the state. |
|
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|
2901 rex_save = rex; |
|
d76ccdacb41e
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diff
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|
2902 rex_in_use = TRUE; |
|
d76ccdacb41e
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|
2903 |
|
11521
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|
2904 result = rmp->regprog->engine->regexec_multi( |
|
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|
2905 rmp, win, buf, lnum, col, tm, timed_out); |
|
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|
2906 rmp->regprog->re_in_use = FALSE; |
| 6328 | 2907 |
|
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changeset
|
2908 // NFA engine aborted because it's very slow. |
| 6328 | 2909 if (rmp->regprog->re_engine == AUTOMATIC_ENGINE |
| 2910 && result == NFA_TOO_EXPENSIVE) | |
| 2911 { | |
| 2912 int save_p_re = p_re; | |
| 2913 int re_flags = rmp->regprog->re_flags; | |
| 2914 char_u *pat = vim_strsave(((nfa_regprog_T *)rmp->regprog)->pattern); | |
| 2915 | |
| 2916 p_re = BACKTRACKING_ENGINE; | |
| 2917 vim_regfree(rmp->regprog); | |
| 2918 if (pat != NULL) | |
| 2919 { | |
| 2920 #ifdef FEAT_EVAL | |
| 2921 report_re_switch(pat); | |
| 2922 #endif | |
|
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|
2923 #ifdef FEAT_SYN_HL |
|
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|
2924 // checking for \z misuse was already done when compiling for NFA, |
|
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changeset
|
2925 // allow all here |
|
7cac4646c552
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|
2926 reg_do_extmatch = REX_ALL; |
|
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|
2927 #endif |
| 6328 | 2928 rmp->regprog = vim_regcomp(pat, re_flags); |
|
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|
2929 #ifdef FEAT_SYN_HL |
|
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|
2930 reg_do_extmatch = 0; |
|
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|
2931 #endif |
|
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|
2932 |
| 6328 | 2933 if (rmp->regprog != NULL) |
|
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|
2934 { |
|
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|
2935 rmp->regprog->re_in_use = TRUE; |
| 6328 | 2936 result = rmp->regprog->engine->regexec_multi( |
|
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|
2937 rmp, win, buf, lnum, col, tm, timed_out); |
|
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|
2938 rmp->regprog->re_in_use = FALSE; |
|
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changeset
|
2939 } |
| 6328 | 2940 vim_free(pat); |
| 2941 } | |
| 2942 p_re = save_p_re; | |
| 2943 } | |
| 2944 | |
|
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changeset
|
2945 rex_in_use = rex_in_use_save; |
|
d76ccdacb41e
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changeset
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2946 if (rex_in_use) |
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d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
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2947 rex = rex_save; |
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d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2948 |
| 6390 | 2949 return result <= 0 ? 0 : result; |
| 4444 | 2950 } |