Mercurial > vim
annotate src/regexp.c @ 29128:d8a962d7b008 v8.2.5084
patch 8.2.5084: when the GUI shows a dialog tests get stuck
Commit: https://github.com/vim/vim/commit/2d12c25a1b73fb6991006fd970b3132ab8ee8b62
Author: Bram Moolenaar <Bram@vim.org>
Date: Mon Jun 13 21:42:45 2022 +0100
patch 8.2.5084: when the GUI shows a dialog tests get stuck
Problem: When the GUI shows a dialog tests get stuck.
Solution: Add the --gui-dialog-file argument.
| author | Bram Moolenaar <Bram@vim.org> |
|---|---|
| date | Mon, 13 Jun 2022 22:45:06 +0200 |
| parents | b90bca860b5a |
| children | 0af5fe160e4e |
| 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 |
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23 #ifdef FEAT_RELTIME |
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24 static int dummy_timeout_flag = 0; |
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25 static const int *timeout_flag = &dummy_timeout_flag; |
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26 #endif |
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27 |
| 7 | 28 /* |
| 29 * Magic characters have a special meaning, they don't match literally. | |
| 30 * Magic characters are negative. This separates them from literal characters | |
| 31 * (possibly multi-byte). Only ASCII characters can be Magic. | |
| 32 */ | |
| 33 #define Magic(x) ((int)(x) - 256) | |
| 34 #define un_Magic(x) ((x) + 256) | |
| 35 #define is_Magic(x) ((x) < 0) | |
| 36 | |
| 37 static int | |
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38 no_Magic(int x) |
| 7 | 39 { |
| 40 if (is_Magic(x)) | |
| 41 return un_Magic(x); | |
| 42 return x; | |
| 43 } | |
| 44 | |
| 45 static int | |
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46 toggle_Magic(int x) |
| 7 | 47 { |
| 48 if (is_Magic(x)) | |
| 49 return un_Magic(x); | |
| 50 return Magic(x); | |
| 51 } | |
| 52 | |
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53 #ifdef FEAT_RELTIME |
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54 void |
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55 init_regexp_timeout(long msec) |
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56 { |
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57 timeout_flag = start_timeout(msec); |
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58 } |
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59 |
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60 void |
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61 disable_regexp_timeout(void) |
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62 { |
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63 stop_timeout(); |
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64 } |
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65 #endif |
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66 |
| 7 | 67 /* |
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68 * The first byte of the BT regexp internal "program" is actually this magic |
| 7 | 69 * number; the start node begins in the second byte. It's used to catch the |
| 70 * most severe mutilation of the program by the caller. | |
| 71 */ | |
| 72 | |
| 73 #define REGMAGIC 0234 | |
| 74 | |
| 75 /* | |
| 76 * Utility definitions. | |
| 77 */ | |
| 78 #define UCHARAT(p) ((int)*(char_u *)(p)) | |
| 79 | |
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80 // Used for an error (down from) vim_regcomp(): give the error message, set |
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81 // rc_did_emsg and return NULL |
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82 #define EMSG_RET_NULL(m) return (emsg((m)), rc_did_emsg = TRUE, (void *)NULL) |
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83 #define IEMSG_RET_NULL(m) return (iemsg((m)), rc_did_emsg = TRUE, (void *)NULL) |
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84 #define EMSG_RET_FAIL(m) return (emsg((m)), rc_did_emsg = TRUE, FAIL) |
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85 #define EMSG2_RET_NULL(m, c) return (semsg((const char *)(m), (c) ? "" : "\\"), rc_did_emsg = TRUE, (void *)NULL) |
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86 #define EMSG3_RET_NULL(m, c, a) return (semsg((const char *)(m), (c) ? "" : "\\", (a)), rc_did_emsg = TRUE, (void *)NULL) |
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87 #define EMSG2_RET_FAIL(m, c) return (semsg((const char *)(m), (c) ? "" : "\\"), rc_did_emsg = TRUE, FAIL) |
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88 #define EMSG_ONE_RET_NULL EMSG2_RET_NULL(_(e_invalid_item_in_str_brackets), reg_magic == MAGIC_ALL) |
| 7 | 89 |
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90 |
| 7 | 91 #define MAX_LIMIT (32767L << 16L) |
| 92 | |
| 93 #define NOT_MULTI 0 | |
| 94 #define MULTI_ONE 1 | |
| 95 #define MULTI_MULT 2 | |
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96 |
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97 // return values for regmatch() |
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98 #define RA_FAIL 1 // something failed, abort |
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99 #define RA_CONT 2 // continue in inner loop |
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100 #define RA_BREAK 3 // break inner loop |
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101 #define RA_MATCH 4 // successful match |
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102 #define RA_NOMATCH 5 // didn't match |
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103 |
| 7 | 104 /* |
| 105 * Return NOT_MULTI if c is not a "multi" operator. | |
| 106 * Return MULTI_ONE if c is a single "multi" operator. | |
| 107 * Return MULTI_MULT if c is a multi "multi" operator. | |
| 108 */ | |
| 109 static int | |
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110 re_multi_type(int c) |
| 7 | 111 { |
| 112 if (c == Magic('@') || c == Magic('=') || c == Magic('?')) | |
| 113 return MULTI_ONE; | |
| 114 if (c == Magic('*') || c == Magic('+') || c == Magic('{')) | |
| 115 return MULTI_MULT; | |
| 116 return NOT_MULTI; | |
| 117 } | |
| 118 | |
| 359 | 119 static char_u *reg_prev_sub = NULL; |
| 120 | |
| 7 | 121 /* |
| 122 * REGEXP_INRANGE contains all characters which are always special in a [] | |
| 123 * range after '\'. | |
| 124 * REGEXP_ABBR contains all characters which act as abbreviations after '\'. | |
| 125 * These are: | |
| 126 * \n - New line (NL). | |
| 127 * \r - Carriage Return (CR). | |
| 128 * \t - Tab (TAB). | |
| 129 * \e - Escape (ESC). | |
| 130 * \b - Backspace (Ctrl_H). | |
| 24 | 131 * \d - Character code in decimal, eg \d123 |
| 132 * \o - Character code in octal, eg \o80 | |
| 133 * \x - Character code in hex, eg \x4a | |
| 134 * \u - Multibyte character code, eg \u20ac | |
| 135 * \U - Long multibyte character code, eg \U12345678 | |
| 7 | 136 */ |
| 137 static char_u REGEXP_INRANGE[] = "]^-n\\"; | |
| 24 | 138 static char_u REGEXP_ABBR[] = "nrtebdoxuU"; |
| 7 | 139 |
| 140 /* | |
| 141 * Translate '\x' to its control character, except "\n", which is Magic. | |
| 142 */ | |
| 143 static int | |
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144 backslash_trans(int c) |
| 7 | 145 { |
| 146 switch (c) | |
| 147 { | |
| 148 case 'r': return CAR; | |
| 149 case 't': return TAB; | |
| 150 case 'e': return ESC; | |
| 151 case 'b': return BS; | |
| 152 } | |
| 153 return c; | |
| 154 } | |
| 155 | |
| 156 /* | |
| 167 | 157 * Check for a character class name "[:name:]". "pp" points to the '['. |
| 7 | 158 * Returns one of the CLASS_ items. CLASS_NONE means that no item was |
| 159 * recognized. Otherwise "pp" is advanced to after the item. | |
| 160 */ | |
| 161 static int | |
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162 get_char_class(char_u **pp) |
| 7 | 163 { |
| 164 static const char *(class_names[]) = | |
| 165 { | |
| 166 "alnum:]", | |
| 167 #define CLASS_ALNUM 0 | |
| 168 "alpha:]", | |
| 169 #define CLASS_ALPHA 1 | |
| 170 "blank:]", | |
| 171 #define CLASS_BLANK 2 | |
| 172 "cntrl:]", | |
| 173 #define CLASS_CNTRL 3 | |
| 174 "digit:]", | |
| 175 #define CLASS_DIGIT 4 | |
| 176 "graph:]", | |
| 177 #define CLASS_GRAPH 5 | |
| 178 "lower:]", | |
| 179 #define CLASS_LOWER 6 | |
| 180 "print:]", | |
| 181 #define CLASS_PRINT 7 | |
| 182 "punct:]", | |
| 183 #define CLASS_PUNCT 8 | |
| 184 "space:]", | |
| 185 #define CLASS_SPACE 9 | |
| 186 "upper:]", | |
| 187 #define CLASS_UPPER 10 | |
| 188 "xdigit:]", | |
| 189 #define CLASS_XDIGIT 11 | |
| 190 "tab:]", | |
| 191 #define CLASS_TAB 12 | |
| 192 "return:]", | |
| 193 #define CLASS_RETURN 13 | |
| 194 "backspace:]", | |
| 195 #define CLASS_BACKSPACE 14 | |
| 196 "escape:]", | |
| 197 #define CLASS_ESCAPE 15 | |
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198 "ident:]", |
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199 #define CLASS_IDENT 16 |
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200 "keyword:]", |
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201 #define CLASS_KEYWORD 17 |
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202 "fname:]", |
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203 #define CLASS_FNAME 18 |
| 7 | 204 }; |
| 205 #define CLASS_NONE 99 | |
| 206 int i; | |
| 207 | |
| 208 if ((*pp)[1] == ':') | |
| 209 { | |
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210 for (i = 0; i < (int)ARRAY_LENGTH(class_names); ++i) |
| 7 | 211 if (STRNCMP(*pp + 2, class_names[i], STRLEN(class_names[i])) == 0) |
| 212 { | |
| 213 *pp += STRLEN(class_names[i]) + 2; | |
| 214 return i; | |
| 215 } | |
| 216 } | |
| 217 return CLASS_NONE; | |
| 218 } | |
| 219 | |
| 220 /* | |
| 221 * Specific version of character class functions. | |
| 222 * Using a table to keep this fast. | |
| 223 */ | |
| 224 static short class_tab[256]; | |
| 225 | |
| 226 #define RI_DIGIT 0x01 | |
| 227 #define RI_HEX 0x02 | |
| 228 #define RI_OCTAL 0x04 | |
| 229 #define RI_WORD 0x08 | |
| 230 #define RI_HEAD 0x10 | |
| 231 #define RI_ALPHA 0x20 | |
| 232 #define RI_LOWER 0x40 | |
| 233 #define RI_UPPER 0x80 | |
| 234 #define RI_WHITE 0x100 | |
| 235 | |
| 236 static void | |
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237 init_class_tab(void) |
| 7 | 238 { |
| 239 int i; | |
| 240 static int done = FALSE; | |
| 241 | |
| 242 if (done) | |
| 243 return; | |
| 244 | |
| 245 for (i = 0; i < 256; ++i) | |
| 246 { | |
| 247 if (i >= '0' && i <= '7') | |
| 248 class_tab[i] = RI_DIGIT + RI_HEX + RI_OCTAL + RI_WORD; | |
| 249 else if (i >= '8' && i <= '9') | |
| 250 class_tab[i] = RI_DIGIT + RI_HEX + RI_WORD; | |
| 251 else if (i >= 'a' && i <= 'f') | |
| 252 class_tab[i] = RI_HEX + RI_WORD + RI_HEAD + RI_ALPHA + RI_LOWER; | |
| 253 else if (i >= 'g' && i <= 'z') | |
| 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 else if (i >= 'G' && i <= 'Z') | |
| 258 class_tab[i] = RI_WORD + RI_HEAD + RI_ALPHA + RI_UPPER; | |
| 259 else if (i == '_') | |
| 260 class_tab[i] = RI_WORD + RI_HEAD; | |
| 261 else | |
| 262 class_tab[i] = 0; | |
| 263 } | |
| 264 class_tab[' '] |= RI_WHITE; | |
| 265 class_tab['\t'] |= RI_WHITE; | |
| 266 done = TRUE; | |
| 267 } | |
| 268 | |
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269 #define ri_digit(c) ((c) < 0x100 && (class_tab[c] & RI_DIGIT)) |
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270 #define ri_hex(c) ((c) < 0x100 && (class_tab[c] & RI_HEX)) |
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271 #define ri_octal(c) ((c) < 0x100 && (class_tab[c] & RI_OCTAL)) |
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272 #define ri_word(c) ((c) < 0x100 && (class_tab[c] & RI_WORD)) |
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273 #define ri_head(c) ((c) < 0x100 && (class_tab[c] & RI_HEAD)) |
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274 #define ri_alpha(c) ((c) < 0x100 && (class_tab[c] & RI_ALPHA)) |
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275 #define ri_lower(c) ((c) < 0x100 && (class_tab[c] & RI_LOWER)) |
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276 #define ri_upper(c) ((c) < 0x100 && (class_tab[c] & RI_UPPER)) |
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277 #define ri_white(c) ((c) < 0x100 && (class_tab[c] & RI_WHITE)) |
| 7 | 278 |
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279 // flags for regflags |
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280 #define RF_ICASE 1 // ignore case |
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281 #define RF_NOICASE 2 // don't ignore case |
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282 #define RF_HASNL 4 // can match a NL |
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283 #define RF_ICOMBINE 8 // ignore combining characters |
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284 #define RF_LOOKBH 16 // uses "\@<=" or "\@<!" |
| 7 | 285 |
| 286 /* | |
| 287 * Global work variables for vim_regcomp(). | |
| 288 */ | |
| 289 | |
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290 static char_u *regparse; // Input-scan pointer. |
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291 static int regnpar; // () count. |
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292 static int wants_nfa; // regex should use NFA engine |
| 7 | 293 #ifdef FEAT_SYN_HL |
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294 static int regnzpar; // \z() count. |
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295 static int re_has_z; // \z item detected |
| 7 | 296 #endif |
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297 static unsigned regflags; // RF_ flags for prog |
| 7 | 298 #if defined(FEAT_SYN_HL) || defined(PROTO) |
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299 static int had_eol; // TRUE when EOL found by vim_regcomp() |
| 7 | 300 #endif |
| 301 | |
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302 static magic_T reg_magic; // magicness of the pattern |
| 7 | 303 |
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304 static int reg_string; // matching with a string instead of a buffer |
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305 // line |
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306 static int reg_strict; // "[abc" is illegal |
| 7 | 307 |
| 308 /* | |
| 309 * META contains all characters that may be magic, except '^' and '$'. | |
| 310 */ | |
| 311 | |
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312 // META[] is used often enough to justify turning it into a table. |
| 7 | 313 static char_u META_flags[] = { |
| 314 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
| 315 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
|
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316 // % & ( ) * + . |
| 7 | 317 0, 0, 0, 0, 0, 1, 1, 0, 1, 1, 1, 1, 0, 0, 1, 0, |
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318 // 1 2 3 4 5 6 7 8 9 < = > ? |
| 7 | 319 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 1, 1, |
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320 // @ A C D F H I K L M O |
| 7 | 321 1, 1, 0, 1, 1, 0, 1, 0, 1, 1, 0, 1, 1, 1, 0, 1, |
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322 // P S U V W X Z [ _ |
| 7 | 323 1, 0, 0, 1, 0, 1, 1, 1, 1, 0, 1, 1, 0, 0, 0, 1, |
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324 // a c d f h i k l m n o |
| 7 | 325 0, 1, 0, 1, 1, 0, 1, 0, 1, 1, 0, 1, 1, 1, 1, 1, |
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326 // p s u v w x z { | ~ |
| 7 | 327 1, 0, 0, 1, 0, 1, 1, 1, 1, 0, 1, 1, 1, 0, 1 |
| 328 }; | |
| 329 | |
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330 static int curchr; // currently parsed character |
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331 // Previous character. Note: prevchr is sometimes -1 when we are not at the |
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332 // start, eg in /[ ^I]^ the pattern was never found even if it existed, |
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333 // because ^ was taken to be magic -- webb |
| 4444 | 334 static int prevchr; |
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335 static int prevprevchr; // previous-previous character |
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336 static int nextchr; // used for ungetchr() |
| 7 | 337 |
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338 // arguments for reg() |
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339 #define REG_NOPAREN 0 // toplevel reg() |
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340 #define REG_PAREN 1 // \(\) |
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341 #define REG_ZPAREN 2 // \z(\) |
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342 #define REG_NPAREN 3 // \%(\) |
| 7 | 343 |
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344 typedef struct |
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345 { |
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346 char_u *regparse; |
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347 int prevchr_len; |
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348 int curchr; |
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349 int prevchr; |
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350 int prevprevchr; |
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351 int nextchr; |
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352 int at_start; |
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353 int prev_at_start; |
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354 int regnpar; |
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355 } parse_state_T; |
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356 |
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357 static void initchr(char_u *); |
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358 static int getchr(void); |
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359 static void skipchr_keepstart(void); |
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360 static int peekchr(void); |
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361 static void skipchr(void); |
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362 static void ungetchr(void); |
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363 static long gethexchrs(int maxinputlen); |
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364 static long getoctchrs(void); |
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365 static long getdecchrs(void); |
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366 static int coll_get_char(void); |
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367 static int prog_magic_wrong(void); |
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368 static int cstrncmp(char_u *s1, char_u *s2, int *n); |
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369 static char_u *cstrchr(char_u *, int); |
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370 static int re_mult_next(char *what); |
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371 static int reg_iswordc(int); |
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372 #ifdef FEAT_EVAL |
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373 static void report_re_switch(char_u *pat); |
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374 #endif |
| 7 | 375 |
| 4444 | 376 static regengine_T bt_regengine; |
| 377 static regengine_T nfa_regengine; | |
| 378 | |
| 7 | 379 /* |
| 380 * Return TRUE if compiled regular expression "prog" can match a line break. | |
| 381 */ | |
| 382 int | |
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383 re_multiline(regprog_T *prog) |
| 7 | 384 { |
| 385 return (prog->regflags & RF_HASNL); | |
| 386 } | |
| 387 | |
| 388 /* | |
| 167 | 389 * Check for an equivalence class name "[=a=]". "pp" points to the '['. |
| 390 * Returns a character representing the class. Zero means that no item was | |
| 391 * recognized. Otherwise "pp" is advanced to after the item. | |
| 392 */ | |
| 393 static int | |
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394 get_equi_class(char_u **pp) |
| 167 | 395 { |
| 396 int c; | |
| 397 int l = 1; | |
| 398 char_u *p = *pp; | |
| 399 | |
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400 if (p[1] == '=' && p[2] != NUL) |
| 167 | 401 { |
| 402 if (has_mbyte) | |
| 474 | 403 l = (*mb_ptr2len)(p + 2); |
| 167 | 404 if (p[l + 2] == '=' && p[l + 3] == ']') |
| 405 { | |
| 406 if (has_mbyte) | |
| 407 c = mb_ptr2char(p + 2); | |
| 408 else | |
| 409 c = p[2]; | |
| 410 *pp += l + 4; | |
| 411 return c; | |
| 412 } | |
| 413 } | |
| 414 return 0; | |
| 415 } | |
| 416 | |
| 417 /* | |
| 418 * Check for a collating element "[.a.]". "pp" points to the '['. | |
| 419 * Returns a character. Zero means that no item was recognized. Otherwise | |
| 420 * "pp" is advanced to after the item. | |
| 421 * Currently only single characters are recognized! | |
| 422 */ | |
| 423 static int | |
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424 get_coll_element(char_u **pp) |
| 167 | 425 { |
| 426 int c; | |
| 427 int l = 1; | |
| 428 char_u *p = *pp; | |
| 429 | |
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430 if (p[0] != NUL && p[1] == '.' && p[2] != NUL) |
| 167 | 431 { |
| 432 if (has_mbyte) | |
| 474 | 433 l = (*mb_ptr2len)(p + 2); |
| 167 | 434 if (p[l + 2] == '.' && p[l + 3] == ']') |
| 435 { | |
| 436 if (has_mbyte) | |
| 437 c = mb_ptr2char(p + 2); | |
| 438 else | |
| 439 c = p[2]; | |
| 440 *pp += l + 4; | |
| 441 return c; | |
| 442 } | |
| 443 } | |
| 444 return 0; | |
| 445 } | |
| 446 | |
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447 static int reg_cpo_lit; // 'cpoptions' contains 'l' flag |
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448 static int reg_cpo_bsl; // 'cpoptions' contains '\' flag |
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449 |
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450 static void |
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451 get_cpo_flags(void) |
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452 { |
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453 reg_cpo_lit = vim_strchr(p_cpo, CPO_LITERAL) != NULL; |
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454 reg_cpo_bsl = vim_strchr(p_cpo, CPO_BACKSL) != NULL; |
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455 } |
| 167 | 456 |
| 457 /* | |
| 458 * Skip over a "[]" range. | |
| 459 * "p" must point to the character after the '['. | |
| 460 * The returned pointer is on the matching ']', or the terminating NUL. | |
| 461 */ | |
| 462 static char_u * | |
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463 skip_anyof(char_u *p) |
| 167 | 464 { |
| 465 int l; | |
| 466 | |
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467 if (*p == '^') // Complement of range. |
| 167 | 468 ++p; |
| 469 if (*p == ']' || *p == '-') | |
| 470 ++p; | |
| 471 while (*p != NUL && *p != ']') | |
| 472 { | |
| 474 | 473 if (has_mbyte && (l = (*mb_ptr2len)(p)) > 1) |
| 167 | 474 p += l; |
| 475 else | |
| 476 if (*p == '-') | |
| 477 { | |
| 478 ++p; | |
| 479 if (*p != ']' && *p != NUL) | |
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480 MB_PTR_ADV(p); |
| 167 | 481 } |
| 482 else if (*p == '\\' | |
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483 && !reg_cpo_bsl |
| 167 | 484 && (vim_strchr(REGEXP_INRANGE, p[1]) != NULL |
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485 || (!reg_cpo_lit && vim_strchr(REGEXP_ABBR, p[1]) != NULL))) |
| 167 | 486 p += 2; |
| 487 else if (*p == '[') | |
| 488 { | |
| 489 if (get_char_class(&p) == CLASS_NONE | |
| 490 && get_equi_class(&p) == 0 | |
| 6830 | 491 && get_coll_element(&p) == 0 |
| 492 && *p != NUL) | |
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493 ++p; // it is not a class name and not NUL |
| 167 | 494 } |
| 495 else | |
| 496 ++p; | |
| 497 } | |
| 498 | |
| 499 return p; | |
| 500 } | |
| 501 | |
| 502 /* | |
| 7 | 503 * Skip past regular expression. |
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504 * Stop at end of "startp" or where "delim" is found ('/', '?', etc). |
| 7 | 505 * Take care of characters with a backslash in front of it. |
| 506 * Skip strings inside [ and ]. | |
| 507 */ | |
| 508 char_u * | |
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509 skip_regexp( |
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510 char_u *startp, |
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511 int delim, |
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512 int magic) |
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513 { |
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514 return skip_regexp_ex(startp, delim, magic, NULL, NULL, NULL); |
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515 } |
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516 |
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517 /* |
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518 * Call skip_regexp() and when the delimiter does not match give an error and |
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519 * return NULL. |
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520 */ |
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521 char_u * |
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522 skip_regexp_err( |
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523 char_u *startp, |
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524 int delim, |
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525 int magic) |
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526 { |
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527 char_u *p = skip_regexp(startp, delim, magic); |
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528 |
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529 if (*p != delim) |
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530 { |
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531 semsg(_(e_missing_delimiter_after_search_pattern_str), startp); |
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532 return NULL; |
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533 } |
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534 return p; |
|
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535 } |
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536 |
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537 /* |
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538 * skip_regexp() with extra arguments: |
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539 * When "newp" is not NULL and "dirc" is '?', make an allocated copy of the |
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540 * expression and change "\?" to "?". If "*newp" is not NULL the expression |
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541 * is changed in-place. |
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542 * If a "\?" is changed to "?" then "dropped" is incremented, unless NULL. |
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543 * If "magic_val" is not NULL, returns the effective magicness of the pattern |
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544 */ |
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545 char_u * |
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546 skip_regexp_ex( |
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547 char_u *startp, |
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548 int dirc, |
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549 int magic, |
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550 char_u **newp, |
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551 int *dropped, |
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552 magic_T *magic_val) |
| 7 | 553 { |
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554 magic_T mymagic; |
| 7 | 555 char_u *p = startp; |
| 556 | |
| 557 if (magic) | |
| 558 mymagic = MAGIC_ON; | |
| 559 else | |
| 560 mymagic = MAGIC_OFF; | |
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561 get_cpo_flags(); |
| 7 | 562 |
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563 for (; p[0] != NUL; MB_PTR_ADV(p)) |
| 7 | 564 { |
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565 if (p[0] == dirc) // found end of regexp |
| 7 | 566 break; |
| 567 if ((p[0] == '[' && mymagic >= MAGIC_ON) | |
| 568 || (p[0] == '\\' && p[1] == '[' && mymagic <= MAGIC_OFF)) | |
| 569 { | |
| 570 p = skip_anyof(p + 1); | |
| 571 if (p[0] == NUL) | |
| 572 break; | |
| 573 } | |
| 574 else if (p[0] == '\\' && p[1] != NUL) | |
| 575 { | |
| 576 if (dirc == '?' && newp != NULL && p[1] == '?') | |
| 577 { | |
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578 // change "\?" to "?", make a copy first. |
| 7 | 579 if (*newp == NULL) |
| 580 { | |
| 581 *newp = vim_strsave(startp); | |
| 582 if (*newp != NULL) | |
| 583 p = *newp + (p - startp); | |
| 584 } | |
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585 if (dropped != NULL) |
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586 ++*dropped; |
| 7 | 587 if (*newp != NULL) |
| 1621 | 588 STRMOVE(p, p + 1); |
| 7 | 589 else |
| 590 ++p; | |
| 591 } | |
| 592 else | |
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593 ++p; // skip next character |
| 7 | 594 if (*p == 'v') |
| 595 mymagic = MAGIC_ALL; | |
| 596 else if (*p == 'V') | |
| 597 mymagic = MAGIC_NONE; | |
| 598 } | |
| 599 } | |
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600 if (magic_val != NULL) |
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601 *magic_val = mymagic; |
| 7 | 602 return p; |
| 603 } | |
| 604 | |
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605 /* |
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606 * Functions for getting characters from the regexp input. |
| 7 | 607 */ |
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608 static int prevchr_len; // byte length of previous char |
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609 static int at_start; // True when on the first character |
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610 static int prev_at_start; // True when on the second character |
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611 |
| 7 | 612 /* |
| 4444 | 613 * Start parsing at "str". |
| 614 */ | |
| 7 | 615 static void |
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616 initchr(char_u *str) |
| 7 | 617 { |
| 618 regparse = str; | |
| 619 prevchr_len = 0; | |
| 620 curchr = prevprevchr = prevchr = nextchr = -1; | |
| 621 at_start = TRUE; | |
| 622 prev_at_start = FALSE; | |
| 623 } | |
| 624 | |
| 4444 | 625 /* |
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626 * Save the current parse state, so that it can be restored and parsing |
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627 * starts in the same state again. |
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628 */ |
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629 static void |
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630 save_parse_state(parse_state_T *ps) |
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631 { |
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632 ps->regparse = regparse; |
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633 ps->prevchr_len = prevchr_len; |
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634 ps->curchr = curchr; |
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635 ps->prevchr = prevchr; |
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636 ps->prevprevchr = prevprevchr; |
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637 ps->nextchr = nextchr; |
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638 ps->at_start = at_start; |
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639 ps->prev_at_start = prev_at_start; |
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640 ps->regnpar = regnpar; |
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641 } |
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642 |
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643 /* |
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644 * Restore a previously saved parse state. |
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645 */ |
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646 static void |
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647 restore_parse_state(parse_state_T *ps) |
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648 { |
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649 regparse = ps->regparse; |
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650 prevchr_len = ps->prevchr_len; |
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651 curchr = ps->curchr; |
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652 prevchr = ps->prevchr; |
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653 prevprevchr = ps->prevprevchr; |
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654 nextchr = ps->nextchr; |
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655 at_start = ps->at_start; |
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656 prev_at_start = ps->prev_at_start; |
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657 regnpar = ps->regnpar; |
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658 } |
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659 |
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660 |
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661 /* |
| 4444 | 662 * Get the next character without advancing. |
| 663 */ | |
| 7 | 664 static int |
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665 peekchr(void) |
| 7 | 666 { |
| 167 | 667 static int after_slash = FALSE; |
| 668 | |
| 7 | 669 if (curchr == -1) |
| 670 { | |
| 671 switch (curchr = regparse[0]) | |
| 672 { | |
| 673 case '.': | |
| 674 case '[': | |
| 675 case '~': | |
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676 // magic when 'magic' is on |
| 7 | 677 if (reg_magic >= MAGIC_ON) |
| 678 curchr = Magic(curchr); | |
| 679 break; | |
| 680 case '(': | |
| 681 case ')': | |
| 682 case '{': | |
| 683 case '%': | |
| 684 case '+': | |
| 685 case '=': | |
| 686 case '?': | |
| 687 case '@': | |
| 688 case '!': | |
| 689 case '&': | |
| 690 case '|': | |
| 691 case '<': | |
| 692 case '>': | |
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693 case '#': // future ext. |
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694 case '"': // future ext. |
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695 case '\'': // future ext. |
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696 case ',': // future ext. |
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697 case '-': // future ext. |
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698 case ':': // future ext. |
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699 case ';': // future ext. |
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700 case '`': // future ext. |
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701 case '/': // Can't be used in / command |
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702 // magic only after "\v" |
| 7 | 703 if (reg_magic == MAGIC_ALL) |
| 704 curchr = Magic(curchr); | |
| 705 break; | |
| 706 case '*': | |
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707 // * is not magic as the very first character, eg "?*ptr", when |
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708 // after '^', eg "/^*ptr" and when after "\(", "\|", "\&". But |
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709 // "\(\*" is not magic, thus must be magic if "after_slash" |
| 167 | 710 if (reg_magic >= MAGIC_ON |
| 711 && !at_start | |
| 712 && !(prev_at_start && prevchr == Magic('^')) | |
| 713 && (after_slash | |
| 714 || (prevchr != Magic('(') | |
| 715 && prevchr != Magic('&') | |
| 716 && prevchr != Magic('|')))) | |
| 7 | 717 curchr = Magic('*'); |
| 718 break; | |
| 719 case '^': | |
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720 // '^' is only magic as the very first character and if it's after |
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721 // "\(", "\|", "\&' or "\n" |
| 7 | 722 if (reg_magic >= MAGIC_OFF |
| 723 && (at_start | |
| 724 || reg_magic == MAGIC_ALL | |
| 725 || prevchr == Magic('(') | |
| 726 || prevchr == Magic('|') | |
| 727 || prevchr == Magic('&') | |
| 728 || prevchr == Magic('n') | |
| 729 || (no_Magic(prevchr) == '(' | |
| 730 && prevprevchr == Magic('%')))) | |
| 731 { | |
| 732 curchr = Magic('^'); | |
| 733 at_start = TRUE; | |
| 734 prev_at_start = FALSE; | |
| 735 } | |
| 736 break; | |
| 737 case '$': | |
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738 // '$' is only magic as the very last char and if it's in front of |
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739 // either "\|", "\)", "\&", or "\n" |
| 7 | 740 if (reg_magic >= MAGIC_OFF) |
| 741 { | |
| 742 char_u *p = regparse + 1; | |
| 6041 | 743 int is_magic_all = (reg_magic == MAGIC_ALL); |
| 744 | |
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745 // ignore \c \C \m \M \v \V and \Z after '$' |
| 7 | 746 while (p[0] == '\\' && (p[1] == 'c' || p[1] == 'C' |
| 6041 | 747 || p[1] == 'm' || p[1] == 'M' |
| 748 || p[1] == 'v' || p[1] == 'V' || p[1] == 'Z')) | |
| 749 { | |
| 750 if (p[1] == 'v') | |
| 751 is_magic_all = TRUE; | |
| 752 else if (p[1] == 'm' || p[1] == 'M' || p[1] == 'V') | |
| 753 is_magic_all = FALSE; | |
| 7 | 754 p += 2; |
| 6041 | 755 } |
| 7 | 756 if (p[0] == NUL |
| 757 || (p[0] == '\\' | |
| 758 && (p[1] == '|' || p[1] == '&' || p[1] == ')' | |
| 759 || p[1] == 'n')) | |
| 6041 | 760 || (is_magic_all |
| 761 && (p[0] == '|' || p[0] == '&' || p[0] == ')')) | |
| 7 | 762 || reg_magic == MAGIC_ALL) |
| 763 curchr = Magic('$'); | |
| 764 } | |
| 765 break; | |
| 766 case '\\': | |
| 767 { | |
| 768 int c = regparse[1]; | |
| 769 | |
| 770 if (c == NUL) | |
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771 curchr = '\\'; // trailing '\' |
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772 else if (c <= '~' && META_flags[c]) |
| 7 | 773 { |
| 774 /* | |
| 775 * META contains everything that may be magic sometimes, | |
| 776 * except ^ and $ ("\^" and "\$" are only magic after | |
| 6830 | 777 * "\V"). We now fetch the next character and toggle its |
| 7 | 778 * magicness. Therefore, \ is so meta-magic that it is |
| 779 * not in META. | |
| 780 */ | |
| 781 curchr = -1; | |
| 782 prev_at_start = at_start; | |
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783 at_start = FALSE; // be able to say "/\*ptr" |
| 7 | 784 ++regparse; |
| 167 | 785 ++after_slash; |
| 7 | 786 peekchr(); |
| 787 --regparse; | |
| 167 | 788 --after_slash; |
| 7 | 789 curchr = toggle_Magic(curchr); |
| 790 } | |
| 791 else if (vim_strchr(REGEXP_ABBR, c)) | |
| 792 { | |
| 793 /* | |
| 794 * Handle abbreviations, like "\t" for TAB -- webb | |
| 795 */ | |
| 796 curchr = backslash_trans(c); | |
| 797 } | |
| 798 else if (reg_magic == MAGIC_NONE && (c == '$' || c == '^')) | |
| 799 curchr = toggle_Magic(c); | |
| 800 else | |
| 801 { | |
| 802 /* | |
| 803 * Next character can never be (made) magic? | |
| 804 * Then backslashing it won't do anything. | |
| 805 */ | |
| 806 if (has_mbyte) | |
| 807 curchr = (*mb_ptr2char)(regparse + 1); | |
| 808 else | |
| 809 curchr = c; | |
| 810 } | |
| 811 break; | |
| 812 } | |
| 813 | |
| 814 default: | |
| 815 if (has_mbyte) | |
| 816 curchr = (*mb_ptr2char)(regparse); | |
| 817 } | |
| 818 } | |
| 819 | |
| 820 return curchr; | |
| 821 } | |
| 822 | |
| 823 /* | |
| 824 * Eat one lexed character. Do this in a way that we can undo it. | |
| 825 */ | |
| 826 static void | |
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827 skipchr(void) |
| 7 | 828 { |
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829 // peekchr() eats a backslash, do the same here |
| 7 | 830 if (*regparse == '\\') |
| 831 prevchr_len = 1; | |
| 832 else | |
| 833 prevchr_len = 0; | |
| 834 if (regparse[prevchr_len] != NUL) | |
| 835 { | |
| 714 | 836 if (enc_utf8) |
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837 // exclude composing chars that mb_ptr2len does include |
| 1449 | 838 prevchr_len += utf_ptr2len(regparse + prevchr_len); |
| 714 | 839 else if (has_mbyte) |
| 474 | 840 prevchr_len += (*mb_ptr2len)(regparse + prevchr_len); |
| 7 | 841 else |
| 842 ++prevchr_len; | |
| 843 } | |
| 844 regparse += prevchr_len; | |
| 845 prev_at_start = at_start; | |
| 846 at_start = FALSE; | |
| 847 prevprevchr = prevchr; | |
| 848 prevchr = curchr; | |
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849 curchr = nextchr; // use previously unget char, or -1 |
| 7 | 850 nextchr = -1; |
| 851 } | |
| 852 | |
| 853 /* | |
| 854 * Skip a character while keeping the value of prev_at_start for at_start. | |
| 855 * prevchr and prevprevchr are also kept. | |
| 856 */ | |
| 857 static void | |
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858 skipchr_keepstart(void) |
| 7 | 859 { |
| 860 int as = prev_at_start; | |
| 861 int pr = prevchr; | |
| 862 int prpr = prevprevchr; | |
| 863 | |
| 864 skipchr(); | |
| 865 at_start = as; | |
| 866 prevchr = pr; | |
| 867 prevprevchr = prpr; | |
| 868 } | |
| 869 | |
| 4444 | 870 /* |
| 871 * Get the next character from the pattern. We know about magic and such, so | |
| 872 * therefore we need a lexical analyzer. | |
| 873 */ | |
| 7 | 874 static int |
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875 getchr(void) |
| 7 | 876 { |
| 877 int chr = peekchr(); | |
| 878 | |
| 879 skipchr(); | |
| 880 return chr; | |
| 881 } | |
| 882 | |
| 883 /* | |
| 884 * put character back. Works only once! | |
| 885 */ | |
| 886 static void | |
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887 ungetchr(void) |
| 7 | 888 { |
| 889 nextchr = curchr; | |
| 890 curchr = prevchr; | |
| 891 prevchr = prevprevchr; | |
| 892 at_start = prev_at_start; | |
| 893 prev_at_start = FALSE; | |
| 894 | |
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895 // Backup regparse, so that it's at the same position as before the |
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896 // getchr(). |
| 7 | 897 regparse -= prevchr_len; |
| 898 } | |
| 899 | |
| 900 /* | |
| 29 | 901 * Get and return the value of the hex string at the current position. |
| 902 * Return -1 if there is no valid hex number. | |
| 903 * The position is updated: | |
| 24 | 904 * blahblah\%x20asdf |
| 856 | 905 * before-^ ^-after |
| 24 | 906 * The parameter controls the maximum number of input characters. This will be |
| 907 * 2 when reading a \%x20 sequence and 4 when reading a \%u20AC sequence. | |
| 908 */ | |
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909 static long |
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910 gethexchrs(int maxinputlen) |
| 24 | 911 { |
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912 long_u nr = 0; |
| 24 | 913 int c; |
| 914 int i; | |
| 915 | |
| 916 for (i = 0; i < maxinputlen; ++i) | |
| 917 { | |
| 918 c = regparse[0]; | |
| 919 if (!vim_isxdigit(c)) | |
| 920 break; | |
| 921 nr <<= 4; | |
| 922 nr |= hex2nr(c); | |
| 923 ++regparse; | |
| 924 } | |
| 925 | |
| 926 if (i == 0) | |
| 927 return -1; | |
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928 return (long)nr; |
| 24 | 929 } |
| 930 | |
| 931 /* | |
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932 * Get and return the value of the decimal string immediately after the |
| 24 | 933 * current position. Return -1 for invalid. Consumes all digits. |
| 934 */ | |
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935 static long |
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936 getdecchrs(void) |
| 24 | 937 { |
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938 long_u nr = 0; |
| 24 | 939 int c; |
| 940 int i; | |
| 941 | |
| 942 for (i = 0; ; ++i) | |
| 943 { | |
| 944 c = regparse[0]; | |
| 945 if (c < '0' || c > '9') | |
| 946 break; | |
| 947 nr *= 10; | |
| 948 nr += c - '0'; | |
| 949 ++regparse; | |
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950 curchr = -1; // no longer valid |
| 24 | 951 } |
| 952 | |
| 953 if (i == 0) | |
| 954 return -1; | |
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955 return (long)nr; |
| 24 | 956 } |
| 957 | |
| 958 /* | |
| 959 * get and return the value of the octal string immediately after the current | |
| 960 * position. Return -1 for invalid, or 0-255 for valid. Smart enough to handle | |
| 961 * numbers > 377 correctly (for example, 400 is treated as 40) and doesn't | |
| 962 * treat 8 or 9 as recognised characters. Position is updated: | |
| 963 * blahblah\%o210asdf | |
| 856 | 964 * before-^ ^-after |
| 24 | 965 */ |
|
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966 static long |
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967 getoctchrs(void) |
| 24 | 968 { |
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969 long_u nr = 0; |
| 24 | 970 int c; |
| 971 int i; | |
| 972 | |
| 973 for (i = 0; i < 3 && nr < 040; ++i) | |
| 974 { | |
| 975 c = regparse[0]; | |
| 976 if (c < '0' || c > '7') | |
| 977 break; | |
| 978 nr <<= 3; | |
| 979 nr |= hex2nr(c); | |
| 980 ++regparse; | |
| 981 } | |
| 982 | |
| 983 if (i == 0) | |
| 984 return -1; | |
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985 return (long)nr; |
| 24 | 986 } |
| 987 | |
| 988 /* | |
| 7 | 989 * read_limits - Read two integers to be taken as a minimum and maximum. |
| 990 * If the first character is '-', then the range is reversed. | |
| 991 * Should end with 'end'. If minval is missing, zero is default, if maxval is | |
| 992 * missing, a very big number is the default. | |
| 993 */ | |
| 994 static int | |
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995 read_limits(long *minval, long *maxval) |
| 7 | 996 { |
| 997 int reverse = FALSE; | |
| 998 char_u *first_char; | |
| 999 long tmp; | |
| 1000 | |
| 1001 if (*regparse == '-') | |
| 1002 { | |
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1003 // Starts with '-', so reverse the range later |
| 7 | 1004 regparse++; |
| 1005 reverse = TRUE; | |
| 1006 } | |
| 1007 first_char = regparse; | |
| 1008 *minval = getdigits(®parse); | |
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1009 if (*regparse == ',') // There is a comma |
| 7 | 1010 { |
| 1011 if (vim_isdigit(*++regparse)) | |
| 1012 *maxval = getdigits(®parse); | |
| 1013 else | |
| 1014 *maxval = MAX_LIMIT; | |
| 1015 } | |
| 1016 else if (VIM_ISDIGIT(*first_char)) | |
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1017 *maxval = *minval; // It was \{n} or \{-n} |
| 7 | 1018 else |
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1019 *maxval = MAX_LIMIT; // It was \{} or \{-} |
| 7 | 1020 if (*regparse == '\\') |
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1021 regparse++; // Allow either \{...} or \{...\} |
| 167 | 1022 if (*regparse != '}') |
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1023 EMSG2_RET_FAIL(_(e_syntax_error_in_str_curlies), |
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1024 reg_magic == MAGIC_ALL); |
| 7 | 1025 |
| 1026 /* | |
| 1027 * Reverse the range if there was a '-', or make sure it is in the right | |
| 1028 * order otherwise. | |
| 1029 */ | |
| 1030 if ((!reverse && *minval > *maxval) || (reverse && *minval < *maxval)) | |
| 1031 { | |
| 1032 tmp = *minval; | |
| 1033 *minval = *maxval; | |
| 1034 *maxval = tmp; | |
| 1035 } | |
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1036 skipchr(); // let's be friends with the lexer again |
| 7 | 1037 return OK; |
| 1038 } | |
| 1039 | |
| 1040 /* | |
| 1041 * vim_regexec and friends | |
| 1042 */ | |
| 1043 | |
| 1044 /* | |
| 1045 * Global work variables for vim_regexec(). | |
| 1046 */ | |
| 1047 | |
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1048 static void cleanup_subexpr(void); |
| 7 | 1049 #ifdef FEAT_SYN_HL |
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1050 static void cleanup_zsubexpr(void); |
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1051 #endif |
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1052 static void reg_nextline(void); |
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1053 static int match_with_backref(linenr_T start_lnum, colnr_T start_col, linenr_T end_lnum, colnr_T end_col, int *bytelen); |
| 7 | 1054 |
| 1055 /* | |
| 1056 * Sometimes need to save a copy of a line. Since alloc()/free() is very | |
| 1057 * slow, we keep one allocated piece of memory and only re-allocate it when | |
| 4444 | 1058 * it's too small. It's freed in bt_regexec_both() when finished. |
| 7 | 1059 */ |
| 1468 | 1060 static char_u *reg_tofree = NULL; |
| 7 | 1061 static unsigned reg_tofreelen; |
| 1062 | |
| 1063 /* | |
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1064 * Structure used to store the execution state of the regex engine. |
| 1209 | 1065 * Which ones are set depends on whether a single-line or multi-line match is |
| 7 | 1066 * done: |
| 1067 * single-line multi-line | |
| 1068 * reg_match ®match_T NULL | |
| 1069 * reg_mmatch NULL ®mmatch_T | |
| 1070 * reg_startp reg_match->startp <invalid> | |
| 1071 * reg_endp reg_match->endp <invalid> | |
| 1072 * reg_startpos <invalid> reg_mmatch->startpos | |
| 1073 * reg_endpos <invalid> reg_mmatch->endpos | |
| 1074 * reg_win NULL window in which to search | |
| 4061 | 1075 * reg_buf curbuf buffer in which to search |
| 7 | 1076 * reg_firstlnum <invalid> first line in which to search |
| 1077 * reg_maxline 0 last line nr | |
| 1078 * reg_line_lbr FALSE or TRUE FALSE | |
| 1079 */ | |
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1080 typedef struct { |
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1081 regmatch_T *reg_match; |
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1082 regmmatch_T *reg_mmatch; |
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1083 char_u **reg_startp; |
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1084 char_u **reg_endp; |
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1085 lpos_T *reg_startpos; |
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1086 lpos_T *reg_endpos; |
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1087 win_T *reg_win; |
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1088 buf_T *reg_buf; |
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1089 linenr_T reg_firstlnum; |
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1090 linenr_T reg_maxline; |
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1091 int reg_line_lbr; // "\n" in string is line break |
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1092 |
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1093 // The current match-position is stord in these variables: |
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1094 linenr_T lnum; // line number, relative to first line |
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1095 char_u *line; // start of current line |
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1096 char_u *input; // current input, points into "line" |
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1097 |
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1098 int need_clear_subexpr; // subexpressions still need to be cleared |
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1099 #ifdef FEAT_SYN_HL |
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1100 int need_clear_zsubexpr; // extmatch subexpressions still need to be |
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1101 // cleared |
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1102 #endif |
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1103 |
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1104 // Internal copy of 'ignorecase'. It is set at each call to vim_regexec(). |
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1105 // Normally it gets the value of "rm_ic" or "rmm_ic", but when the pattern |
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1106 // contains '\c' or '\C' the value is overruled. |
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1107 int reg_ic; |
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1108 |
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1109 // Similar to "reg_ic", but only for 'combining' characters. Set with \Z |
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1110 // flag in the regexp. Defaults to false, always. |
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1111 int reg_icombine; |
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1112 |
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1113 // Copy of "rmm_maxcol": maximum column to search for a match. Zero when |
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1114 // there is no maximum. |
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1115 colnr_T reg_maxcol; |
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1116 |
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1117 // State for the NFA engine regexec. |
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1118 int nfa_has_zend; // NFA regexp \ze operator encountered. |
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1119 int nfa_has_backref; // NFA regexp \1 .. \9 encountered. |
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1120 int nfa_nsubexpr; // Number of sub expressions actually being used |
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1121 // during execution. 1 if only the whole match |
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1122 // (subexpr 0) is used. |
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1123 // listid is global, so that it increases on recursive calls to |
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1124 // nfa_regmatch(), which means we don't have to clear the lastlist field of |
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1125 // all the states. |
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1126 int nfa_listid; |
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1127 int nfa_alt_listid; |
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1128 |
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1129 #ifdef FEAT_SYN_HL |
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1130 int nfa_has_zsubexpr; // NFA regexp has \z( ), set zsubexpr. |
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1131 #endif |
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1132 } regexec_T; |
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1133 |
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1134 static regexec_T rex; |
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1135 static int rex_in_use = FALSE; |
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1136 |
| 7 | 1137 /* |
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1138 * Return TRUE if character 'c' is included in 'iskeyword' option for |
|
2e2f07561f4b
patch 8.1.0862: no verbose version of character classes
Bram Moolenaar <Bram@vim.org>
parents:
15603
diff
changeset
|
1139 * "reg_buf" buffer. |
|
2e2f07561f4b
patch 8.1.0862: no verbose version of character classes
Bram Moolenaar <Bram@vim.org>
parents:
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diff
changeset
|
1140 */ |
|
2e2f07561f4b
patch 8.1.0862: no verbose version of character classes
Bram Moolenaar <Bram@vim.org>
parents:
15603
diff
changeset
|
1141 static int |
|
2e2f07561f4b
patch 8.1.0862: no verbose version of character classes
Bram Moolenaar <Bram@vim.org>
parents:
15603
diff
changeset
|
1142 reg_iswordc(int c) |
|
2e2f07561f4b
patch 8.1.0862: no verbose version of character classes
Bram Moolenaar <Bram@vim.org>
parents:
15603
diff
changeset
|
1143 { |
|
2e2f07561f4b
patch 8.1.0862: no verbose version of character classes
Bram Moolenaar <Bram@vim.org>
parents:
15603
diff
changeset
|
1144 return vim_iswordc_buf(c, rex.reg_buf); |
|
2e2f07561f4b
patch 8.1.0862: no verbose version of character classes
Bram Moolenaar <Bram@vim.org>
parents:
15603
diff
changeset
|
1145 } |
|
2e2f07561f4b
patch 8.1.0862: no verbose version of character classes
Bram Moolenaar <Bram@vim.org>
parents:
15603
diff
changeset
|
1146 |
|
2e2f07561f4b
patch 8.1.0862: no verbose version of character classes
Bram Moolenaar <Bram@vim.org>
parents:
15603
diff
changeset
|
1147 /* |
| 7 | 1148 * Get pointer to the line "lnum", which is relative to "reg_firstlnum". |
| 1149 */ | |
| 1150 static char_u * | |
|
7833
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
1151 reg_getline(linenr_T lnum) |
| 7 | 1152 { |
|
18812
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
1153 // when looking behind for a match/no-match lnum is negative. But we |
|
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
1154 // can't go before line 1 |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
1155 if (rex.reg_firstlnum + lnum < 1) |
| 7 | 1156 return NULL; |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
1157 if (lnum > rex.reg_maxline) |
|
18812
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
1158 // Must have matched the "\n" in the last line. |
| 481 | 1159 return (char_u *)""; |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
1160 return ml_get_buf(rex.reg_buf, rex.reg_firstlnum + lnum, FALSE); |
| 7 | 1161 } |
| 1162 | |
| 1163 #ifdef FEAT_SYN_HL | |
|
18812
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
1164 static char_u *reg_startzp[NSUBEXP]; // Workspace to mark beginning |
|
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
1165 static char_u *reg_endzp[NSUBEXP]; // and end of \z(...\) matches |
|
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
1166 static lpos_T reg_startzpos[NSUBEXP]; // idem, beginning pos |
|
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
1167 static lpos_T reg_endzpos[NSUBEXP]; // idem, end pos |
| 7 | 1168 #endif |
| 1169 | |
|
18812
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
1170 // TRUE if using multi-line regexp. |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
1171 #define REG_MULTI (rex.reg_match == NULL) |
| 4444 | 1172 |
| 7 | 1173 #ifdef FEAT_SYN_HL |
| 1174 /* | |
| 1175 * Create a new extmatch and mark it as referenced once. | |
| 1176 */ | |
| 1177 static reg_extmatch_T * | |
|
7833
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
1178 make_extmatch(void) |
| 7 | 1179 { |
| 1180 reg_extmatch_T *em; | |
| 1181 | |
|
16825
ce04ebdf26b8
patch 8.1.1414: alloc() returning "char_u *" causes a lot of type casts
Bram Moolenaar <Bram@vim.org>
parents:
16768
diff
changeset
|
1182 em = ALLOC_CLEAR_ONE(reg_extmatch_T); |
| 7 | 1183 if (em != NULL) |
| 1184 em->refcnt = 1; | |
| 1185 return em; | |
| 1186 } | |
| 1187 | |
| 1188 /* | |
| 1189 * Add a reference to an extmatch. | |
| 1190 */ | |
| 1191 reg_extmatch_T * | |
|
7833
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
1192 ref_extmatch(reg_extmatch_T *em) |
| 7 | 1193 { |
| 1194 if (em != NULL) | |
| 1195 em->refcnt++; | |
| 1196 return em; | |
| 1197 } | |
| 1198 | |
| 1199 /* | |
| 1200 * Remove a reference to an extmatch. If there are no references left, free | |
| 1201 * the info. | |
| 1202 */ | |
| 1203 void | |
|
7833
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
1204 unref_extmatch(reg_extmatch_T *em) |
| 7 | 1205 { |
| 1206 int i; | |
| 1207 | |
| 1208 if (em != NULL && --em->refcnt <= 0) | |
| 1209 { | |
| 1210 for (i = 0; i < NSUBEXP; ++i) | |
| 1211 vim_free(em->matches[i]); | |
| 1212 vim_free(em); | |
| 1213 } | |
| 1214 } | |
| 1215 #endif | |
| 1216 | |
| 1217 /* | |
| 1218 * Get class of previous character. | |
| 1219 */ | |
| 1220 static int | |
|
7833
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
1221 reg_prev_class(void) |
| 7 | 1222 { |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
1223 if (rex.input > rex.line) |
|
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
1224 return mb_get_class_buf(rex.input - 1 |
|
15603
639b8318472c
patch 8.1.0809: too many #ifdefs
Bram Moolenaar <Bram@vim.org>
parents:
15555
diff
changeset
|
1225 - (*mb_head_off)(rex.line, rex.input - 1), rex.reg_buf); |
| 7 | 1226 return -1; |
| 1227 } | |
| 5735 | 1228 |
|
4730
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
1229 /* |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
1230 * Return TRUE if the current rex.input position matches the Visual area. |
|
4730
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
1231 */ |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
1232 static int |
|
7833
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
1233 reg_match_visual(void) |
|
4730
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
1234 { |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
1235 pos_T top, bot; |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
1236 linenr_T lnum; |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
1237 colnr_T col; |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
1238 win_T *wp = rex.reg_win == NULL ? curwin : rex.reg_win; |
|
4730
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
1239 int mode; |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
1240 colnr_T start, end; |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
1241 colnr_T start2, end2; |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
1242 colnr_T cols; |
|
24745
b1fa3f005c93
patch 8.2.2911: pattern "%V" does not match all of block selection
Bram Moolenaar <Bram@vim.org>
parents:
24488
diff
changeset
|
1243 colnr_T curswant; |
|
4730
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
1244 |
|
27466
8ed815f061af
patch 8.2.4261: accessing invalid memory in a regular expression
Bram Moolenaar <Bram@vim.org>
parents:
26966
diff
changeset
|
1245 // Check if the buffer is the current buffer and not using a string. |
|
27468
678ea52c15a0
patch 8.2.4262: some search tests fail
Bram Moolenaar <Bram@vim.org>
parents:
27466
diff
changeset
|
1246 if (rex.reg_buf != curbuf || VIsual.lnum == 0 || !REG_MULTI) |
|
4730
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
1247 return FALSE; |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
1248 |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
1249 if (VIsual_active) |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
1250 { |
|
11121
778c10516955
patch 8.0.0448: some macros are in lower case
Christian Brabandt <cb@256bit.org>
parents:
10359
diff
changeset
|
1251 if (LT_POS(VIsual, wp->w_cursor)) |
|
4730
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
1252 { |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
1253 top = VIsual; |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
1254 bot = wp->w_cursor; |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
1255 } |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
1256 else |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
1257 { |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
1258 top = wp->w_cursor; |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
1259 bot = VIsual; |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
1260 } |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
1261 mode = VIsual_mode; |
|
24745
b1fa3f005c93
patch 8.2.2911: pattern "%V" does not match all of block selection
Bram Moolenaar <Bram@vim.org>
parents:
24488
diff
changeset
|
1262 curswant = wp->w_curswant; |
|
4730
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
1263 } |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
1264 else |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
1265 { |
|
11121
778c10516955
patch 8.0.0448: some macros are in lower case
Christian Brabandt <cb@256bit.org>
parents:
10359
diff
changeset
|
1266 if (LT_POS(curbuf->b_visual.vi_start, curbuf->b_visual.vi_end)) |
|
4730
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
1267 { |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
1268 top = curbuf->b_visual.vi_start; |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
1269 bot = curbuf->b_visual.vi_end; |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
1270 } |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
1271 else |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
1272 { |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
1273 top = curbuf->b_visual.vi_end; |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
1274 bot = curbuf->b_visual.vi_start; |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
1275 } |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
1276 mode = curbuf->b_visual.vi_mode; |
|
24745
b1fa3f005c93
patch 8.2.2911: pattern "%V" does not match all of block selection
Bram Moolenaar <Bram@vim.org>
parents:
24488
diff
changeset
|
1277 curswant = curbuf->b_visual.vi_curswant; |
|
4730
749e2b2755d5
updated for version 7.3.1112
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parents:
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diff
changeset
|
1278 } |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
1279 lnum = rex.lnum + rex.reg_firstlnum; |
|
4730
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
1280 if (lnum < top.lnum || lnum > bot.lnum) |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
1281 return FALSE; |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
1282 |
|
26841
48d6f187e9c0
patch 8.2.3949: using freed memory with /%V
Bram Moolenaar <Bram@vim.org>
parents:
26534
diff
changeset
|
1283 col = (colnr_T)(rex.input - rex.line); |
|
4730
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
1284 if (mode == 'v') |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
1285 { |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
1286 if ((lnum == top.lnum && col < top.col) |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
1287 || (lnum == bot.lnum && col >= bot.col + (*p_sel != 'e'))) |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
1288 return FALSE; |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
1289 } |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
1290 else if (mode == Ctrl_V) |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
1291 { |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
1292 getvvcol(wp, &top, &start, NULL, &end); |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
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|
1293 getvvcol(wp, &bot, &start2, NULL, &end2); |
|
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|
1294 if (start2 < start) |
|
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|
1295 start = start2; |
|
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|
1296 if (end2 > end) |
|
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|
1297 end = end2; |
|
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|
1298 if (top.col == MAXCOL || bot.col == MAXCOL || curswant == MAXCOL) |
|
4730
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|
1299 end = MAXCOL; |
|
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|
1300 |
|
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|
1301 // getvvcol() flushes rex.line, need to get it again |
|
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|
1302 rex.line = reg_getline(rex.lnum); |
|
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|
1303 rex.input = rex.line + col; |
|
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|
1304 |
|
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|
1305 cols = win_linetabsize(wp, rex.line, col); |
|
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|
1306 if (cols < start || cols > end - (*p_sel == 'e')) |
|
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|
1307 return FALSE; |
|
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|
1308 } |
|
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|
1309 return TRUE; |
|
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|
1310 } |
|
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|
1311 |
| 7 | 1312 /* |
| 1313 * Check the regexp program for its magic number. | |
| 1314 * Return TRUE if it's wrong. | |
| 1315 */ | |
| 1316 static int | |
|
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diff
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|
1317 prog_magic_wrong(void) |
| 7 | 1318 { |
| 4444 | 1319 regprog_T *prog; |
| 1320 | |
|
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|
1321 prog = REG_MULTI ? rex.reg_mmatch->regprog : rex.reg_match->regprog; |
| 4444 | 1322 if (prog->engine == &nfa_regengine) |
|
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|
1323 // For NFA matcher we don't check the magic |
| 4444 | 1324 return FALSE; |
| 1325 | |
| 1326 if (UCHARAT(((bt_regprog_T *)prog)->program) != REGMAGIC) | |
| 7 | 1327 { |
|
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|
1328 emsg(_(e_corrupted_regexp_program)); |
| 7 | 1329 return TRUE; |
| 1330 } | |
| 1331 return FALSE; | |
| 1332 } | |
| 1333 | |
| 1334 /* | |
| 1335 * Cleanup the subexpressions, if this wasn't done yet. | |
| 1336 * This construction is used to clear the subexpressions only when they are | |
| 1337 * used (to increase speed). | |
| 1338 */ | |
| 1339 static void | |
|
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|
1340 cleanup_subexpr(void) |
| 7 | 1341 { |
|
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|
1342 if (rex.need_clear_subexpr) |
| 7 | 1343 { |
| 1344 if (REG_MULTI) | |
| 1345 { | |
|
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|
1346 // Use 0xff to set lnum to -1 |
|
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changeset
|
1347 vim_memset(rex.reg_startpos, 0xff, sizeof(lpos_T) * NSUBEXP); |
|
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|
1348 vim_memset(rex.reg_endpos, 0xff, sizeof(lpos_T) * NSUBEXP); |
| 7 | 1349 } |
| 1350 else | |
| 1351 { | |
|
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|
1352 vim_memset(rex.reg_startp, 0, sizeof(char_u *) * NSUBEXP); |
|
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|
1353 vim_memset(rex.reg_endp, 0, sizeof(char_u *) * NSUBEXP); |
| 7 | 1354 } |
|
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|
1355 rex.need_clear_subexpr = FALSE; |
| 7 | 1356 } |
| 1357 } | |
| 1358 | |
| 1359 #ifdef FEAT_SYN_HL | |
| 1360 static void | |
|
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diff
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|
1361 cleanup_zsubexpr(void) |
| 7 | 1362 { |
|
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|
1363 if (rex.need_clear_zsubexpr) |
| 7 | 1364 { |
| 1365 if (REG_MULTI) | |
| 1366 { | |
|
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|
1367 // Use 0xff to set lnum to -1 |
| 7 | 1368 vim_memset(reg_startzpos, 0xff, sizeof(lpos_T) * NSUBEXP); |
| 1369 vim_memset(reg_endzpos, 0xff, sizeof(lpos_T) * NSUBEXP); | |
| 1370 } | |
| 1371 else | |
| 1372 { | |
| 1373 vim_memset(reg_startzp, 0, sizeof(char_u *) * NSUBEXP); | |
| 1374 vim_memset(reg_endzp, 0, sizeof(char_u *) * NSUBEXP); | |
| 1375 } | |
|
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|
1376 rex.need_clear_zsubexpr = FALSE; |
| 7 | 1377 } |
| 1378 } | |
| 1379 #endif | |
| 1380 | |
| 1381 /* | |
|
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|
1382 * Advance rex.lnum, rex.line and rex.input to the next line. |
| 7 | 1383 */ |
| 1384 static void | |
|
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|
1385 reg_nextline(void) |
| 7 | 1386 { |
|
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|
1387 rex.line = reg_getline(++rex.lnum); |
|
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|
1388 rex.input = rex.line; |
| 7 | 1389 fast_breakcheck(); |
| 1390 } | |
| 1391 | |
| 1392 /* | |
|
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|
1393 * Check whether a backreference matches. |
|
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|
1394 * Returns RA_FAIL, RA_NOMATCH or RA_MATCH. |
| 5504 | 1395 * If "bytelen" is not NULL, it is set to the byte length of the match in the |
| 1396 * last line. | |
|
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|
1397 */ |
|
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|
1398 static int |
|
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changeset
|
1399 match_with_backref( |
|
c079097365f3
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|
1400 linenr_T start_lnum, |
|
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|
1401 colnr_T start_col, |
|
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|
1402 linenr_T end_lnum, |
|
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diff
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|
1403 colnr_T end_col, |
|
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|
1404 int *bytelen) |
|
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1405 { |
|
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|
1406 linenr_T clnum = start_lnum; |
|
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|
1407 colnr_T ccol = start_col; |
|
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|
1408 int len; |
|
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|
1409 char_u *p; |
|
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|
1410 |
|
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|
1411 if (bytelen != NULL) |
|
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|
1412 *bytelen = 0; |
|
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|
1413 for (;;) |
|
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|
1414 { |
|
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|
1415 // Since getting one line may invalidate the other, need to make copy. |
|
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|
1416 // Slow! |
|
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|
1417 if (rex.line != reg_tofree) |
|
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|
1418 { |
|
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|
1419 len = (int)STRLEN(rex.line); |
|
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|
1420 if (reg_tofree == NULL || len >= (int)reg_tofreelen) |
|
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|
1421 { |
|
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|
1422 len += 50; // get some extra |
|
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|
1423 vim_free(reg_tofree); |
|
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|
1424 reg_tofree = alloc(len); |
|
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|
1425 if (reg_tofree == NULL) |
|
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|
1426 return RA_FAIL; // out of memory! |
|
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|
1427 reg_tofreelen = len; |
|
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|
1428 } |
|
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|
1429 STRCPY(reg_tofree, rex.line); |
|
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|
1430 rex.input = reg_tofree + (rex.input - rex.line); |
|
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|
1431 rex.line = reg_tofree; |
|
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|
1432 } |
|
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|
1433 |
|
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|
1434 // Get the line to compare with. |
|
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|
1435 p = reg_getline(clnum); |
|
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|
1436 if (clnum == end_lnum) |
|
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|
1437 len = end_col - ccol; |
|
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|
1438 else |
|
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|
1439 len = (int)STRLEN(p + ccol); |
|
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|
1440 |
|
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|
1441 if (cstrncmp(p + ccol, rex.input, &len) != 0) |
|
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|
1442 return RA_NOMATCH; // doesn't match |
|
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|
1443 if (bytelen != NULL) |
|
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|
1444 *bytelen += len; |
|
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|
1445 if (clnum == end_lnum) |
|
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|
1446 break; // match and at end! |
|
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changeset
|
1447 if (rex.lnum >= rex.reg_maxline) |
|
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Bram Moolenaar <Bram@vim.org>
parents:
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diff
changeset
|
1448 return RA_NOMATCH; // text too short |
|
4891
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
1449 |
|
18812
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
1450 // Advance to next line. |
|
4891
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
1451 reg_nextline(); |
| 5504 | 1452 if (bytelen != NULL) |
| 1453 *bytelen = 0; | |
|
4891
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
1454 ++clnum; |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
1455 ccol = 0; |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
1456 if (got_int) |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
1457 return RA_FAIL; |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
1458 } |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
1459 |
|
18812
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patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
1460 // 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
|
1461 // that should not matter. |
|
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updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
1462 return RA_MATCH; |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
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diff
changeset
|
1463 } |
| 7 | 1464 |
| 6203 | 1465 /* |
| 1466 * Used in a place where no * or \+ can follow. | |
| 1467 */ | |
| 1468 static int | |
|
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commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
1469 re_mult_next(char *what) |
| 6203 | 1470 { |
| 1471 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
|
1472 { |
|
26966
ac75c145f0a9
patch 8.2.4012: error messages are spread out
Bram Moolenaar <Bram@vim.org>
parents:
26962
diff
changeset
|
1473 semsg(_(e_nfa_regexp_cannot_repeat_str), what); |
|
15480
bd12ace1bab2
patch 8.1.0748: using sprintf() instead of semsg()
Bram Moolenaar <Bram@vim.org>
parents:
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diff
changeset
|
1474 rc_did_emsg = TRUE; |
|
bd12ace1bab2
patch 8.1.0748: using sprintf() instead of semsg()
Bram Moolenaar <Bram@vim.org>
parents:
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diff
changeset
|
1475 return FAIL; |
|
bd12ace1bab2
patch 8.1.0748: using sprintf() instead of semsg()
Bram Moolenaar <Bram@vim.org>
parents:
15470
diff
changeset
|
1476 } |
| 6203 | 1477 return OK; |
| 1478 } | |
| 1479 | |
| 7 | 1480 typedef struct |
| 1481 { | |
| 1482 int a, b, c; | |
| 1483 } decomp_T; | |
| 1484 | |
| 1485 | |
|
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patch 8.1.2394: using old C style comments
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parents:
18576
diff
changeset
|
1486 // 0xfb20 - 0xfb4f |
| 297 | 1487 static decomp_T decomp_table[0xfb4f-0xfb20+1] = |
| 7 | 1488 { |
|
18812
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patch 8.1.2394: using old C style comments
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diff
changeset
|
1489 {0x5e2,0,0}, // 0xfb20 alt ayin |
|
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
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|
1490 {0x5d0,0,0}, // 0xfb21 alt alef |
|
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patch 8.1.2394: using old C style comments
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diff
changeset
|
1491 {0x5d3,0,0}, // 0xfb22 alt dalet |
|
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patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
1492 {0x5d4,0,0}, // 0xfb23 alt he |
|
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patch 8.1.2394: using old C style comments
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parents:
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diff
changeset
|
1493 {0x5db,0,0}, // 0xfb24 alt kaf |
|
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patch 8.1.2394: using old C style comments
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parents:
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diff
changeset
|
1494 {0x5dc,0,0}, // 0xfb25 alt lamed |
|
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patch 8.1.2394: using old C style comments
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parents:
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diff
changeset
|
1495 {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
|
1496 {0x5e8,0,0}, // 0xfb27 alt resh |
|
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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
|
1497 {0x5ea,0,0}, // 0xfb28 alt tav |
|
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
1498 {'+', 0, 0}, // 0xfb29 alt plus |
|
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
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changeset
|
1499 {0x5e9, 0x5c1, 0}, // 0xfb2a shin+shin-dot |
|
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
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diff
changeset
|
1500 {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
|
1501 {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
|
1502 {0x5e9, 0x5c2, 0x5bc}, // 0xfb2d shin+sin-dot+dagesh |
|
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
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diff
changeset
|
1503 {0x5d0, 0x5b7, 0}, // 0xfb2e alef+patah |
|
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patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
1504 {0x5d0, 0x5b8, 0}, // 0xfb2f alef+qamats |
|
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patch 8.1.2394: using old C style comments
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parents:
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diff
changeset
|
1505 {0x5d0, 0x5b4, 0}, // 0xfb30 alef+hiriq |
|
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patch 8.1.2394: using old C style comments
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parents:
18576
diff
changeset
|
1506 {0x5d1, 0x5bc, 0}, // 0xfb31 bet+dagesh |
|
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patch 8.1.2394: using old C style comments
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parents:
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diff
changeset
|
1507 {0x5d2, 0x5bc, 0}, // 0xfb32 gimel+dagesh |
|
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patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
1508 {0x5d3, 0x5bc, 0}, // 0xfb33 dalet+dagesh |
|
d34ec6fe207d
patch 8.1.2394: using old C style comments
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parents:
18576
diff
changeset
|
1509 {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
|
1510 {0x5d5, 0x5bc, 0}, // 0xfb35 vav+dagesh |
|
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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
|
1511 {0x5d6, 0x5bc, 0}, // 0xfb36 zayin+dagesh |
|
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patch 8.1.2394: using old C style comments
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parents:
18576
diff
changeset
|
1512 {0xfb37, 0, 0}, // 0xfb37 -- UNUSED |
|
d34ec6fe207d
patch 8.1.2394: using old C style comments
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parents:
18576
diff
changeset
|
1513 {0x5d8, 0x5bc, 0}, // 0xfb38 tet+dagesh |
|
d34ec6fe207d
patch 8.1.2394: using old C style comments
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parents:
18576
diff
changeset
|
1514 {0x5d9, 0x5bc, 0}, // 0xfb39 yud+dagesh |
|
d34ec6fe207d
patch 8.1.2394: using old C style comments
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parents:
18576
diff
changeset
|
1515 {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
|
1516 {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
|
1517 {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
|
1518 {0xfb3d, 0, 0}, // 0xfb3d -- UNUSED |
|
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
1519 {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
|
1520 {0xfb3f, 0, 0}, // 0xfb3f -- UNUSED |
|
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
1521 {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
|
1522 {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
|
1523 {0xfb42, 0, 0}, // 0xfb42 -- UNUSED |
|
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
1524 {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
|
1525 {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
|
1526 {0xfb45, 0, 0}, // 0xfb45 -- UNUSED |
|
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
1527 {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
|
1528 {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
|
1529 {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
|
1530 {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
|
1531 {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
|
1532 {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
|
1533 {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
|
1534 {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
|
1535 {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
|
1536 {0x5d0, 0x5dc, 0} // 0xfb4f alef-lamed |
| 7 | 1537 }; |
| 1538 | |
| 1539 static void | |
|
7833
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
1540 mb_decompose(int c, int *c1, int *c2, int *c3) |
| 7 | 1541 { |
| 1542 decomp_T d; | |
| 1543 | |
|
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d037b9cbdaaa
updated for version 7.3.1000
Bram Moolenaar <bram@vim.org>
parents:
4466
diff
changeset
|
1544 if (c >= 0xfb20 && c <= 0xfb4f) |
| 7 | 1545 { |
| 1546 d = decomp_table[c - 0xfb20]; | |
| 1547 *c1 = d.a; | |
| 1548 *c2 = d.b; | |
| 1549 *c3 = d.c; | |
| 1550 } | |
| 1551 else | |
| 1552 { | |
| 1553 *c1 = c; | |
| 1554 *c2 = *c3 = 0; | |
| 1555 } | |
| 1556 } | |
| 1557 | |
| 1558 /* | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
1559 * Compare two strings, ignore case if rex.reg_ic set. |
| 7 | 1560 * Return 0 if strings match, non-zero otherwise. |
| 1561 * Correct the length "*n" when composing characters are ignored. | |
| 1562 */ | |
| 1563 static int | |
|
7833
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
1564 cstrncmp(char_u *s1, char_u *s2, int *n) |
| 7 | 1565 { |
| 1566 int result; | |
| 1567 | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
1568 if (!rex.reg_ic) |
| 7 | 1569 result = STRNCMP(s1, s2, *n); |
| 1570 else | |
| 1571 result = MB_STRNICMP(s1, s2, *n); | |
| 1572 | |
|
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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
|
1573 // 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
|
1574 if (result != 0 && enc_utf8 && rex.reg_icombine) |
| 7 | 1575 { |
| 1576 char_u *str1, *str2; | |
| 1577 int c1, c2, c11, c12; | |
| 1578 int junk; | |
| 1579 | |
|
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patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
1580 // 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:
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diff
changeset
|
1581 // deal with the composing characters by ignoring them: |
| 7 | 1582 str1 = s1; |
| 1583 str2 = s2; | |
| 1584 c1 = c2 = 0; | |
| 507 | 1585 while ((int)(str1 - s1) < *n) |
| 7 | 1586 { |
| 1587 c1 = mb_ptr2char_adv(&str1); | |
| 1588 c2 = mb_ptr2char_adv(&str2); | |
| 1589 | |
|
18019
68fd5296bf73
patch 8.1.2005: the regexp.c file is too big
Bram Moolenaar <Bram@vim.org>
parents:
17966
diff
changeset
|
1590 // 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>
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17966
diff
changeset
|
1591 // Currently hard-coded for Hebrew, Arabic to be done... |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
1592 if (c1 != c2 && (!rex.reg_ic || utf_fold(c1) != utf_fold(c2))) |
| 7 | 1593 { |
|
18019
68fd5296bf73
patch 8.1.2005: the regexp.c file is too big
Bram Moolenaar <Bram@vim.org>
parents:
17966
diff
changeset
|
1594 // decomposition necessary? |
| 7 | 1595 mb_decompose(c1, &c11, &junk, &junk); |
| 1596 mb_decompose(c2, &c12, &junk, &junk); | |
| 1597 c1 = c11; | |
| 1598 c2 = c12; | |
|
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d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
1599 if (c11 != c12 |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
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diff
changeset
|
1600 && (!rex.reg_ic || utf_fold(c11) != utf_fold(c12))) |
| 7 | 1601 break; |
| 1602 } | |
| 1603 } | |
| 1604 result = c2 - c1; | |
| 1605 if (result == 0) | |
| 1606 *n = (int)(str2 - s2); | |
| 1607 } | |
| 1608 | |
| 1609 return result; | |
| 1610 } | |
| 1611 | |
| 1612 /* | |
| 1613 * cstrchr: This function is used a lot for simple searches, keep it fast! | |
| 1614 */ | |
| 1615 static char_u * | |
|
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diff
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|
1616 cstrchr(char_u *s, int c) |
| 7 | 1617 { |
| 1618 char_u *p; | |
| 1619 int cc; | |
| 1620 | |
|
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diff
changeset
|
1621 if (!rex.reg_ic || (!enc_utf8 && mb_char2len(c) > 1)) |
| 7 | 1622 return vim_strchr(s, c); |
| 1623 | |
|
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|
1624 // tolower() and toupper() can be slow, comparing twice should be a lot |
|
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diff
changeset
|
1625 // faster (esp. when using MS Visual C++!). |
|
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changeset
|
1626 // For UTF-8 need to use folded case. |
| 7 | 1627 if (enc_utf8 && c > 0x80) |
| 1628 cc = utf_fold(c); | |
| 1629 else | |
| 1347 | 1630 if (MB_ISUPPER(c)) |
| 1631 cc = MB_TOLOWER(c); | |
| 1632 else if (MB_ISLOWER(c)) | |
| 1633 cc = MB_TOUPPER(c); | |
| 7 | 1634 else |
| 1635 return vim_strchr(s, c); | |
| 1636 | |
| 1637 if (has_mbyte) | |
| 1638 { | |
| 474 | 1639 for (p = s; *p != NUL; p += (*mb_ptr2len)(p)) |
| 7 | 1640 { |
| 1641 if (enc_utf8 && c > 0x80) | |
| 1642 { | |
| 1643 if (utf_fold(utf_ptr2char(p)) == cc) | |
| 1644 return p; | |
| 1645 } | |
| 1646 else if (*p == c || *p == cc) | |
| 1647 return p; | |
| 1648 } | |
| 1649 } | |
| 1650 else | |
|
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diff
changeset
|
1651 // Faster version for when there are no multi-byte characters. |
| 7 | 1652 for (p = s; *p != NUL; ++p) |
| 1653 if (*p == c || *p == cc) | |
| 1654 return p; | |
| 1655 | |
| 1656 return NULL; | |
| 1657 } | |
| 1658 | |
|
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|
1659 //////////////////////////////////////////////////////////////// |
|
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|
1660 // regsub stuff // |
|
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|
1661 //////////////////////////////////////////////////////////////// |
| 7 | 1662 |
| 1663 /* | |
| 1664 * We should define ftpr as a pointer to a function returning a pointer to | |
| 1665 * a function returning a pointer to a function ... | |
| 1666 * This is impossible, so we declare a pointer to a function returning a | |
|
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|
1667 * void pointer. This should work for all compilers. |
| 7 | 1668 */ |
|
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|
1669 typedef void (*(*fptr_T)(int *, int)); |
|
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diff
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|
1670 |
|
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changeset
|
1671 static int vim_regsub_both(char_u *source, typval_T *expr, char_u *dest, int destlen, int flags); |
| 7 | 1672 |
| 772 | 1673 static fptr_T |
|
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changeset
|
1674 do_upper(int *d, int c) |
| 7 | 1675 { |
| 772 | 1676 *d = MB_TOUPPER(c); |
| 1677 | |
| 1678 return (fptr_T)NULL; | |
| 7 | 1679 } |
| 1680 | |
| 772 | 1681 static fptr_T |
|
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changeset
|
1682 do_Upper(int *d, int c) |
| 7 | 1683 { |
| 772 | 1684 *d = MB_TOUPPER(c); |
| 1685 | |
| 1686 return (fptr_T)do_Upper; | |
| 1687 } | |
| 1688 | |
| 1689 static fptr_T | |
|
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diff
changeset
|
1690 do_lower(int *d, int c) |
| 772 | 1691 { |
| 1692 *d = MB_TOLOWER(c); | |
| 1693 | |
| 1694 return (fptr_T)NULL; | |
| 1695 } | |
| 1696 | |
| 1697 static fptr_T | |
|
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diff
changeset
|
1698 do_Lower(int *d, int c) |
| 772 | 1699 { |
| 1700 *d = MB_TOLOWER(c); | |
| 1701 | |
| 1702 return (fptr_T)do_Lower; | |
| 7 | 1703 } |
| 1704 | |
| 1705 /* | |
| 1706 * regtilde(): Replace tildes in the pattern by the old pattern. | |
| 1707 * | |
| 1708 * Short explanation of the tilde: It stands for the previous replacement | |
| 1709 * pattern. If that previous pattern also contains a ~ we should go back a | |
| 1710 * step further... But we insert the previous pattern into the current one | |
| 1711 * and remember that. | |
| 772 | 1712 * This still does not handle the case where "magic" changes. So require the |
| 1713 * user to keep his hands off of "magic". | |
| 7 | 1714 * |
| 1715 * The tildes are parsed once before the first call to vim_regsub(). | |
| 1716 */ | |
| 1717 char_u * | |
|
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|
1718 regtilde(char_u *source, int magic) |
| 7 | 1719 { |
| 1720 char_u *newsub = source; | |
| 1721 char_u *tmpsub; | |
| 1722 char_u *p; | |
| 1723 int len; | |
| 1724 int prevlen; | |
| 1725 | |
| 1726 for (p = newsub; *p; ++p) | |
| 1727 { | |
| 1728 if ((*p == '~' && magic) || (*p == '\\' && *(p + 1) == '~' && !magic)) | |
| 1729 { | |
| 1730 if (reg_prev_sub != NULL) | |
| 1731 { | |
|
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|
1732 // length = len(newsub) - 1 + len(prev_sub) + 1 |
| 7 | 1733 prevlen = (int)STRLEN(reg_prev_sub); |
|
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|
1734 tmpsub = alloc(STRLEN(newsub) + prevlen); |
| 7 | 1735 if (tmpsub != NULL) |
| 1736 { | |
|
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|
1737 // copy prefix |
|
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|
1738 len = (int)(p - newsub); // not including ~ |
| 7 | 1739 mch_memmove(tmpsub, newsub, (size_t)len); |
|
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|
1740 // interpret tilde |
| 7 | 1741 mch_memmove(tmpsub + len, reg_prev_sub, (size_t)prevlen); |
|
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|
1742 // copy postfix |
| 7 | 1743 if (!magic) |
|
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|
1744 ++p; // back off backslash |
| 7 | 1745 STRCPY(tmpsub + len + prevlen, p + 1); |
| 1746 | |
|
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|
1747 if (newsub != source) // already allocated newsub |
| 7 | 1748 vim_free(newsub); |
| 1749 newsub = tmpsub; | |
| 1750 p = newsub + len + prevlen; | |
| 1751 } | |
| 1752 } | |
| 1753 else if (magic) | |
|
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1754 STRMOVE(p, p + 1); // remove '~' |
| 7 | 1755 else |
|
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1756 STRMOVE(p, p + 2); // remove '\~' |
| 7 | 1757 --p; |
| 1758 } | |
| 1759 else | |
| 1760 { | |
|
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1761 if (*p == '\\' && p[1]) // skip escaped characters |
| 7 | 1762 ++p; |
| 1763 if (has_mbyte) | |
| 474 | 1764 p += (*mb_ptr2len)(p) - 1; |
| 7 | 1765 } |
| 1766 } | |
| 1767 | |
| 1768 vim_free(reg_prev_sub); | |
|
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|
1769 if (newsub != source) // newsub was allocated, just keep it |
| 7 | 1770 reg_prev_sub = newsub; |
|
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|
1771 else // no ~ found, need to save newsub |
| 7 | 1772 reg_prev_sub = vim_strsave(newsub); |
| 1773 return newsub; | |
| 1774 } | |
| 1775 | |
| 1776 #ifdef FEAT_EVAL | |
|
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1777 static int can_f_submatch = FALSE; // TRUE when submatch() can be used |
| 7 | 1778 |
|
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1779 // These pointers are used for reg_submatch(). Needed for when the |
|
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1780 // substitution string is an expression that contains a call to substitute() |
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1781 // and submatch(). |
|
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1782 typedef struct { |
|
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1783 regmatch_T *sm_match; |
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|
1784 regmmatch_T *sm_mmatch; |
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1785 linenr_T sm_firstlnum; |
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|
1786 linenr_T sm_maxline; |
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1787 int sm_line_lbr; |
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|
1788 } regsubmatch_T; |
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1789 |
|
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1790 static regsubmatch_T rsm; // can only be used when can_f_submatch is TRUE |
| 7 | 1791 #endif |
| 1792 | |
|
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1793 #ifdef FEAT_EVAL |
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1794 |
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1795 /* |
|
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1796 * Put the submatches in "argv[argskip]" which is a list passed into |
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1797 * call_func() by vim_regsub_both(). |
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1798 */ |
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1799 static int |
|
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1800 fill_submatch_list(int argc UNUSED, typval_T *argv, int argskip, int argcount) |
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1801 { |
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1802 listitem_T *li; |
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1803 int i; |
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1804 char_u *s; |
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1805 typval_T *listarg = argv + argskip; |
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1806 |
|
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1807 if (argcount == argskip) |
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1808 // called function doesn't take a submatches argument |
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1809 return argskip; |
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1810 |
|
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1811 // Relies on sl_list to be the first item in staticList10_T. |
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1812 init_static_list((staticList10_T *)(listarg->vval.v_list)); |
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1813 |
|
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1814 // There are always 10 list items in staticList10_T. |
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1815 li = listarg->vval.v_list->lv_first; |
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1816 for (i = 0; i < 10; ++i) |
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1817 { |
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1818 s = rsm.sm_match->startp[i]; |
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1819 if (s == NULL || rsm.sm_match->endp[i] == NULL) |
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1820 s = NULL; |
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1821 else |
|
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1822 s = vim_strnsave(s, rsm.sm_match->endp[i] - s); |
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1823 li->li_tv.v_type = VAR_STRING; |
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1824 li->li_tv.vval.v_string = s; |
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1825 li = li->li_next; |
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1826 } |
|
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1827 return argskip + 1; |
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1828 } |
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1829 |
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1830 static void |
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1831 clear_submatch_list(staticList10_T *sl) |
|
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1832 { |
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1833 int i; |
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1834 |
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1835 for (i = 0; i < 10; ++i) |
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1836 vim_free(sl->sl_items[i].li_tv.vval.v_string); |
|
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1837 } |
|
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1838 #endif |
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1839 |
| 7 | 1840 /* |
| 1841 * vim_regsub() - perform substitutions after a vim_regexec() or | |
| 1842 * vim_regexec_multi() match. | |
| 1843 * | |
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1844 * If "flags" has REGSUB_COPY really copy into "dest[destlen]". |
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1845 * Oterwise nothing is copied, only compue the length of the result. |
| 7 | 1846 * |
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1847 * If "flags" has REGSUB_MAGIC then behave like 'magic' is set. |
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1848 * |
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1849 * If "flags" has REGSUB_BACKSLASH a backslash will be removed later, need to |
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1850 * double them to keep them, and insert a backslash before a CR to avoid it |
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1851 * being replaced with a line break later. |
| 7 | 1852 * |
| 1853 * Note: The matched text must not change between the call of | |
| 1854 * vim_regexec()/vim_regexec_multi() and vim_regsub()! It would make the back | |
| 1855 * references invalid! | |
| 1856 * | |
| 1857 * Returns the size of the replacement, including terminating NUL. | |
| 1858 */ | |
| 1859 int | |
|
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1860 vim_regsub( |
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1861 regmatch_T *rmp, |
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1862 char_u *source, |
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1863 typval_T *expr, |
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1864 char_u *dest, |
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1865 int destlen, |
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1866 int flags) |
| 7 | 1867 { |
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1868 int result; |
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1869 regexec_T rex_save; |
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1870 int rex_in_use_save = rex_in_use; |
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1871 |
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1872 if (rex_in_use) |
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1873 // Being called recursively, save the state. |
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1874 rex_save = rex; |
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1875 rex_in_use = TRUE; |
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1876 |
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1877 rex.reg_match = rmp; |
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1878 rex.reg_mmatch = NULL; |
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1879 rex.reg_maxline = 0; |
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1880 rex.reg_buf = curbuf; |
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1881 rex.reg_line_lbr = TRUE; |
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1882 result = vim_regsub_both(source, expr, dest, destlen, flags); |
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1883 |
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1884 rex_in_use = rex_in_use_save; |
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1885 if (rex_in_use) |
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1886 rex = rex_save; |
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1887 |
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1888 return result; |
| 7 | 1889 } |
| 1890 | |
| 1891 int | |
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1892 vim_regsub_multi( |
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1893 regmmatch_T *rmp, |
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1894 linenr_T lnum, |
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1895 char_u *source, |
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1896 char_u *dest, |
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1897 int destlen, |
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1898 int flags) |
| 7 | 1899 { |
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1900 int result; |
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1901 regexec_T rex_save; |
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1902 int rex_in_use_save = rex_in_use; |
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1903 |
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1904 if (rex_in_use) |
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1905 // Being called recursively, save the state. |
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1906 rex_save = rex; |
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1907 rex_in_use = TRUE; |
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1908 |
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1909 rex.reg_match = NULL; |
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1910 rex.reg_mmatch = rmp; |
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1911 rex.reg_buf = curbuf; // always works on the current buffer! |
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1912 rex.reg_firstlnum = lnum; |
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1913 rex.reg_maxline = curbuf->b_ml.ml_line_count - lnum; |
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1914 rex.reg_line_lbr = FALSE; |
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1915 result = vim_regsub_both(source, NULL, dest, destlen, flags); |
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1916 |
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1917 rex_in_use = rex_in_use_save; |
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1918 if (rex_in_use) |
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1919 rex = rex_save; |
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1920 |
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1921 return result; |
| 7 | 1922 } |
| 1923 | |
| 1924 static int | |
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1925 vim_regsub_both( |
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1926 char_u *source, |
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1927 typval_T *expr, |
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1928 char_u *dest, |
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1929 int destlen, |
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1930 int flags) |
| 7 | 1931 { |
| 1932 char_u *src; | |
| 1933 char_u *dst; | |
| 1934 char_u *s; | |
| 1935 int c; | |
| 772 | 1936 int cc; |
| 7 | 1937 int no = -1; |
| 4244 | 1938 fptr_T func_all = (fptr_T)NULL; |
| 1939 fptr_T func_one = (fptr_T)NULL; | |
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1940 linenr_T clnum = 0; // init for GCC |
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1941 int len = 0; // init for GCC |
| 7 | 1942 #ifdef FEAT_EVAL |
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1943 static char_u *eval_result = NULL; |
| 7 | 1944 #endif |
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1945 int copy = flags & REGSUB_COPY; |
| 7 | 1946 |
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1947 // Be paranoid... |
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1948 if ((source == NULL && expr == NULL) || dest == NULL) |
| 7 | 1949 { |
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1950 emsg(_(e_null_argument)); |
| 7 | 1951 return 0; |
| 1952 } | |
| 1953 if (prog_magic_wrong()) | |
| 1954 return 0; | |
| 1955 src = source; | |
| 1956 dst = dest; | |
| 1957 | |
| 1958 /* | |
| 1959 * When the substitute part starts with "\=" evaluate it as an expression. | |
| 1960 */ | |
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1961 if (expr != NULL || (source[0] == '\\' && source[1] == '=')) |
| 7 | 1962 { |
| 1963 #ifdef FEAT_EVAL | |
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1964 // To make sure that the length doesn't change between checking the |
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1965 // length and copying the string, and to speed up things, the |
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1966 // resulting string is saved from the call with |
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1967 // "flags & REGSUB_COPY" == 0 to the call with |
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1968 // "flags & REGSUB_COPY" != 0. |
| 7 | 1969 if (copy) |
| 1970 { | |
| 1971 if (eval_result != NULL) | |
| 1972 { | |
| 1973 STRCPY(dest, eval_result); | |
| 1974 dst += STRLEN(eval_result); | |
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1975 VIM_CLEAR(eval_result); |
| 7 | 1976 } |
| 1977 } | |
| 1978 else | |
| 1979 { | |
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1980 int prev_can_f_submatch = can_f_submatch; |
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1981 regsubmatch_T rsm_save; |
| 7 | 1982 |
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1983 VIM_CLEAR(eval_result); |
| 7 | 1984 |
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1985 // The expression may contain substitute(), which calls us |
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1986 // recursively. Make sure submatch() gets the text from the first |
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1987 // level. |
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1988 if (can_f_submatch) |
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1989 rsm_save = rsm; |
| 7 | 1990 can_f_submatch = TRUE; |
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1991 rsm.sm_match = rex.reg_match; |
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1992 rsm.sm_mmatch = rex.reg_mmatch; |
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1993 rsm.sm_firstlnum = rex.reg_firstlnum; |
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1994 rsm.sm_maxline = rex.reg_maxline; |
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1995 rsm.sm_line_lbr = rex.reg_line_lbr; |
| 7 | 1996 |
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1997 if (expr != NULL) |
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1998 { |
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1999 typval_T argv[2]; |
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2000 char_u buf[NUMBUFLEN]; |
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2001 typval_T rettv; |
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2002 staticList10_T matchList; |
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2003 funcexe_T funcexe; |
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2004 |
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2005 rettv.v_type = VAR_STRING; |
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2006 rettv.vval.v_string = NULL; |
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2007 argv[0].v_type = VAR_LIST; |
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2008 argv[0].vval.v_list = &matchList.sl_list; |
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2009 matchList.sl_list.lv_len = 0; |
|
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2010 CLEAR_FIELD(funcexe); |
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2011 funcexe.fe_argv_func = fill_submatch_list; |
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2012 funcexe.fe_evaluate = TRUE; |
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2013 if (expr->v_type == VAR_FUNC) |
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2014 { |
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2015 s = expr->vval.v_string; |
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2016 call_func(s, -1, &rettv, 1, argv, &funcexe); |
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2017 } |
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2018 else if (expr->v_type == VAR_PARTIAL) |
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2019 { |
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2020 partial_T *partial = expr->vval.v_partial; |
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2021 |
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2022 s = partial_name(partial); |
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2023 funcexe.fe_partial = partial; |
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2024 call_func(s, -1, &rettv, 1, argv, &funcexe); |
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2025 } |
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2026 else if (expr->v_type == VAR_INSTR) |
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2027 { |
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2028 exe_typval_instr(expr, &rettv); |
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2029 } |
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2030 if (matchList.sl_list.lv_len > 0) |
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2031 // fill_submatch_list() was called |
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2032 clear_submatch_list(&matchList); |
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2033 |
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2034 if (rettv.v_type == VAR_UNKNOWN) |
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2035 // something failed, no need to report another error |
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2036 eval_result = NULL; |
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2037 else |
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2038 { |
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2039 eval_result = tv_get_string_buf_chk(&rettv, buf); |
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2040 if (eval_result != NULL) |
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2041 eval_result = vim_strsave(eval_result); |
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2042 } |
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2043 clear_tv(&rettv); |
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2044 } |
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2045 else if (substitute_instr != NULL) |
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2046 // Execute instructions from ISN_SUBSTITUTE. |
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2047 eval_result = exe_substitute_instr(); |
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changeset
|
2048 else |
|
20996
3af71cbcfdbe
patch 8.2.1049: Vim9: leaking memory when using continuation line
Bram Moolenaar <Bram@vim.org>
parents:
20830
diff
changeset
|
2049 eval_result = eval_to_string(source + 2, TRUE); |
|
9589
bf204ab1ce7d
commit https://github.com/vim/vim/commit/72ab729c3dcdea0fba44d8e676602c847e841bcd
Christian Brabandt <cb@256bit.org>
parents:
9015
diff
changeset
|
2050 |
| 7 | 2051 if (eval_result != NULL) |
| 2052 { | |
|
2125
b8744d1982d1
updated for version 7.2.407
Bram Moolenaar <bram@zimbu.org>
parents:
2012
diff
changeset
|
2053 int had_backslash = FALSE; |
|
b8744d1982d1
updated for version 7.2.407
Bram Moolenaar <bram@zimbu.org>
parents:
2012
diff
changeset
|
2054 |
|
11127
506f5d8b7d8b
patch 8.0.0451: some macros are in lower case
Christian Brabandt <cb@256bit.org>
parents:
11121
diff
changeset
|
2055 for (s = eval_result; *s != NUL; MB_PTR_ADV(s)) |
| 7 | 2056 { |
|
18812
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
2057 // Change NL to CR, so that it becomes a line break, |
|
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
2058 // unless called from vim_regexec_nl(). |
|
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
2059 // Skip over a backslashed character. |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2060 if (*s == NL && !rsm.sm_line_lbr) |
| 7 | 2061 *s = CAR; |
| 2062 else if (*s == '\\' && s[1] != NUL) | |
|
2125
b8744d1982d1
updated for version 7.2.407
Bram Moolenaar <bram@zimbu.org>
parents:
2012
diff
changeset
|
2063 { |
| 7 | 2064 ++s; |
| 2173 | 2065 /* Change NL to CR here too, so that this works: |
| 2066 * :s/abc\\\ndef/\="aaa\\\nbbb"/ on text: | |
| 2067 * abc\ | |
| 2068 * def | |
| 2904 | 2069 * Not when called from vim_regexec_nl(). |
| 2173 | 2070 */ |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2071 if (*s == NL && !rsm.sm_line_lbr) |
| 2173 | 2072 *s = CAR; |
|
2125
b8744d1982d1
updated for version 7.2.407
Bram Moolenaar <bram@zimbu.org>
parents:
2012
diff
changeset
|
2073 had_backslash = TRUE; |
|
b8744d1982d1
updated for version 7.2.407
Bram Moolenaar <bram@zimbu.org>
parents:
2012
diff
changeset
|
2074 } |
|
b8744d1982d1
updated for version 7.2.407
Bram Moolenaar <bram@zimbu.org>
parents:
2012
diff
changeset
|
2075 } |
|
29048
c98fc7a4dde4
patch 8.2.5046: vim_regsub() can overwrite the destination
Bram Moolenaar <Bram@vim.org>
parents:
28692
diff
changeset
|
2076 if (had_backslash && (flags & REGSUB_BACKSLASH)) |
|
2125
b8744d1982d1
updated for version 7.2.407
Bram Moolenaar <bram@zimbu.org>
parents:
2012
diff
changeset
|
2077 { |
|
18812
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
2078 // Backslashes will be consumed, need to double them. |
|
2125
b8744d1982d1
updated for version 7.2.407
Bram Moolenaar <bram@zimbu.org>
parents:
2012
diff
changeset
|
2079 s = vim_strsave_escaped(eval_result, (char_u *)"\\"); |
|
b8744d1982d1
updated for version 7.2.407
Bram Moolenaar <bram@zimbu.org>
parents:
2012
diff
changeset
|
2080 if (s != NULL) |
|
b8744d1982d1
updated for version 7.2.407
Bram Moolenaar <bram@zimbu.org>
parents:
2012
diff
changeset
|
2081 { |
|
b8744d1982d1
updated for version 7.2.407
Bram Moolenaar <bram@zimbu.org>
parents:
2012
diff
changeset
|
2082 vim_free(eval_result); |
|
b8744d1982d1
updated for version 7.2.407
Bram Moolenaar <bram@zimbu.org>
parents:
2012
diff
changeset
|
2083 eval_result = s; |
|
b8744d1982d1
updated for version 7.2.407
Bram Moolenaar <bram@zimbu.org>
parents:
2012
diff
changeset
|
2084 } |
| 7 | 2085 } |
| 2086 | |
| 2087 dst += STRLEN(eval_result); | |
| 2088 } | |
| 2089 | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2090 can_f_submatch = prev_can_f_submatch; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2091 if (can_f_submatch) |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2092 rsm = rsm_save; |
| 7 | 2093 } |
| 2094 #endif | |
| 2095 } | |
| 2096 else | |
| 2097 while ((c = *src++) != NUL) | |
| 2098 { | |
|
29048
c98fc7a4dde4
patch 8.2.5046: vim_regsub() can overwrite the destination
Bram Moolenaar <Bram@vim.org>
parents:
28692
diff
changeset
|
2099 if (c == '&' && (flags & REGSUB_MAGIC)) |
| 7 | 2100 no = 0; |
| 2101 else if (c == '\\' && *src != NUL) | |
| 2102 { | |
|
29048
c98fc7a4dde4
patch 8.2.5046: vim_regsub() can overwrite the destination
Bram Moolenaar <Bram@vim.org>
parents:
28692
diff
changeset
|
2103 if (*src == '&' && !(flags & REGSUB_MAGIC)) |
| 7 | 2104 { |
| 2105 ++src; | |
| 2106 no = 0; | |
| 2107 } | |
| 2108 else if ('0' <= *src && *src <= '9') | |
| 2109 { | |
| 2110 no = *src++ - '0'; | |
| 2111 } | |
| 2112 else if (vim_strchr((char_u *)"uUlLeE", *src)) | |
| 2113 { | |
| 2114 switch (*src++) | |
| 2115 { | |
| 4244 | 2116 case 'u': func_one = (fptr_T)do_upper; |
| 7 | 2117 continue; |
| 4244 | 2118 case 'U': func_all = (fptr_T)do_Upper; |
| 7 | 2119 continue; |
| 4244 | 2120 case 'l': func_one = (fptr_T)do_lower; |
| 7 | 2121 continue; |
| 4244 | 2122 case 'L': func_all = (fptr_T)do_Lower; |
| 7 | 2123 continue; |
| 2124 case 'e': | |
| 4244 | 2125 case 'E': func_one = func_all = (fptr_T)NULL; |
| 7 | 2126 continue; |
| 2127 } | |
| 2128 } | |
| 2129 } | |
|
18812
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
2130 if (no < 0) // Ordinary character. |
| 7 | 2131 { |
| 798 | 2132 if (c == K_SPECIAL && src[0] != NUL && src[1] != NUL) |
| 2133 { | |
|
18812
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
2134 // Copy a special key as-is. |
| 798 | 2135 if (copy) |
| 2136 { | |
|
29048
c98fc7a4dde4
patch 8.2.5046: vim_regsub() can overwrite the destination
Bram Moolenaar <Bram@vim.org>
parents:
28692
diff
changeset
|
2137 if (dst + 3 > dest + destlen) |
|
c98fc7a4dde4
patch 8.2.5046: vim_regsub() can overwrite the destination
Bram Moolenaar <Bram@vim.org>
parents:
28692
diff
changeset
|
2138 { |
|
c98fc7a4dde4
patch 8.2.5046: vim_regsub() can overwrite the destination
Bram Moolenaar <Bram@vim.org>
parents:
28692
diff
changeset
|
2139 iemsg("vim_regsub_both(): not enough space"); |
|
c98fc7a4dde4
patch 8.2.5046: vim_regsub() can overwrite the destination
Bram Moolenaar <Bram@vim.org>
parents:
28692
diff
changeset
|
2140 return 0; |
|
c98fc7a4dde4
patch 8.2.5046: vim_regsub() can overwrite the destination
Bram Moolenaar <Bram@vim.org>
parents:
28692
diff
changeset
|
2141 } |
| 798 | 2142 *dst++ = c; |
| 2143 *dst++ = *src++; | |
| 2144 *dst++ = *src++; | |
| 2145 } | |
| 2146 else | |
| 2147 { | |
| 2148 dst += 3; | |
| 2149 src += 2; | |
| 2150 } | |
| 2151 continue; | |
| 2152 } | |
| 2153 | |
| 7 | 2154 if (c == '\\' && *src != NUL) |
| 2155 { | |
|
18812
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
2156 // Check for abbreviations -- webb |
| 7 | 2157 switch (*src) |
| 2158 { | |
| 2159 case 'r': c = CAR; ++src; break; | |
| 2160 case 'n': c = NL; ++src; break; | |
| 2161 case 't': c = TAB; ++src; break; | |
|
18812
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
2162 // Oh no! \e already has meaning in subst pat :-( |
|
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
2163 // case 'e': c = ESC; ++src; break; |
| 7 | 2164 case 'b': c = Ctrl_H; ++src; break; |
| 2165 | |
|
18812
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
2166 // If "backslash" is TRUE the backslash will be removed |
|
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
2167 // later. Used to insert a literal CR. |
|
29048
c98fc7a4dde4
patch 8.2.5046: vim_regsub() can overwrite the destination
Bram Moolenaar <Bram@vim.org>
parents:
28692
diff
changeset
|
2168 default: if (flags & REGSUB_BACKSLASH) |
| 7 | 2169 { |
| 2170 if (copy) | |
|
29048
c98fc7a4dde4
patch 8.2.5046: vim_regsub() can overwrite the destination
Bram Moolenaar <Bram@vim.org>
parents:
28692
diff
changeset
|
2171 { |
|
c98fc7a4dde4
patch 8.2.5046: vim_regsub() can overwrite the destination
Bram Moolenaar <Bram@vim.org>
parents:
28692
diff
changeset
|
2172 if (dst + 1 > dest + destlen) |
|
c98fc7a4dde4
patch 8.2.5046: vim_regsub() can overwrite the destination
Bram Moolenaar <Bram@vim.org>
parents:
28692
diff
changeset
|
2173 { |
|
c98fc7a4dde4
patch 8.2.5046: vim_regsub() can overwrite the destination
Bram Moolenaar <Bram@vim.org>
parents:
28692
diff
changeset
|
2174 iemsg("vim_regsub_both(): not enough space"); |
|
c98fc7a4dde4
patch 8.2.5046: vim_regsub() can overwrite the destination
Bram Moolenaar <Bram@vim.org>
parents:
28692
diff
changeset
|
2175 return 0; |
|
c98fc7a4dde4
patch 8.2.5046: vim_regsub() can overwrite the destination
Bram Moolenaar <Bram@vim.org>
parents:
28692
diff
changeset
|
2176 } |
| 7 | 2177 *dst = '\\'; |
|
29048
c98fc7a4dde4
patch 8.2.5046: vim_regsub() can overwrite the destination
Bram Moolenaar <Bram@vim.org>
parents:
28692
diff
changeset
|
2178 } |
| 7 | 2179 ++dst; |
| 2180 } | |
| 2181 c = *src++; | |
| 2182 } | |
| 2183 } | |
| 798 | 2184 else if (has_mbyte) |
| 2185 c = mb_ptr2char(src - 1); | |
| 7 | 2186 |
|
18812
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
2187 // Write to buffer, if copy is set. |
| 4244 | 2188 if (func_one != (fptr_T)NULL) |
|
18812
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
2189 // Turbo C complains without the typecast |
| 4244 | 2190 func_one = (fptr_T)(func_one(&cc, c)); |
| 2191 else if (func_all != (fptr_T)NULL) | |
|
18812
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
2192 // Turbo C complains without the typecast |
| 4244 | 2193 func_all = (fptr_T)(func_all(&cc, c)); |
|
18812
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
2194 else // just copy |
| 772 | 2195 cc = c; |
| 2196 | |
| 2197 if (has_mbyte) | |
| 7 | 2198 { |
|
2307
81527f127fb1
Fix: Composing characters in :s substitute text were dropped.
Bram Moolenaar <bram@vim.org>
parents:
2247
diff
changeset
|
2199 int totlen = mb_ptr2len(src - 1); |
|
29048
c98fc7a4dde4
patch 8.2.5046: vim_regsub() can overwrite the destination
Bram Moolenaar <Bram@vim.org>
parents:
28692
diff
changeset
|
2200 int charlen = mb_char2len(cc); |
|
2307
81527f127fb1
Fix: Composing characters in :s substitute text were dropped.
Bram Moolenaar <bram@vim.org>
parents:
2247
diff
changeset
|
2201 |
| 7 | 2202 if (copy) |
|
29048
c98fc7a4dde4
patch 8.2.5046: vim_regsub() can overwrite the destination
Bram Moolenaar <Bram@vim.org>
parents:
28692
diff
changeset
|
2203 { |
|
c98fc7a4dde4
patch 8.2.5046: vim_regsub() can overwrite the destination
Bram Moolenaar <Bram@vim.org>
parents:
28692
diff
changeset
|
2204 if (dst + charlen > dest + destlen) |
|
c98fc7a4dde4
patch 8.2.5046: vim_regsub() can overwrite the destination
Bram Moolenaar <Bram@vim.org>
parents:
28692
diff
changeset
|
2205 { |
|
c98fc7a4dde4
patch 8.2.5046: vim_regsub() can overwrite the destination
Bram Moolenaar <Bram@vim.org>
parents:
28692
diff
changeset
|
2206 iemsg("vim_regsub_both(): not enough space"); |
|
c98fc7a4dde4
patch 8.2.5046: vim_regsub() can overwrite the destination
Bram Moolenaar <Bram@vim.org>
parents:
28692
diff
changeset
|
2207 return 0; |
|
c98fc7a4dde4
patch 8.2.5046: vim_regsub() can overwrite the destination
Bram Moolenaar <Bram@vim.org>
parents:
28692
diff
changeset
|
2208 } |
| 772 | 2209 mb_char2bytes(cc, dst); |
|
29048
c98fc7a4dde4
patch 8.2.5046: vim_regsub() can overwrite the destination
Bram Moolenaar <Bram@vim.org>
parents:
28692
diff
changeset
|
2210 } |
|
c98fc7a4dde4
patch 8.2.5046: vim_regsub() can overwrite the destination
Bram Moolenaar <Bram@vim.org>
parents:
28692
diff
changeset
|
2211 dst += charlen - 1; |
|
2307
81527f127fb1
Fix: Composing characters in :s substitute text were dropped.
Bram Moolenaar <bram@vim.org>
parents:
2247
diff
changeset
|
2212 if (enc_utf8) |
|
81527f127fb1
Fix: Composing characters in :s substitute text were dropped.
Bram Moolenaar <bram@vim.org>
parents:
2247
diff
changeset
|
2213 { |
|
81527f127fb1
Fix: Composing characters in :s substitute text were dropped.
Bram Moolenaar <bram@vim.org>
parents:
2247
diff
changeset
|
2214 int clen = utf_ptr2len(src - 1); |
|
81527f127fb1
Fix: Composing characters in :s substitute text were dropped.
Bram Moolenaar <bram@vim.org>
parents:
2247
diff
changeset
|
2215 |
|
18812
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patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
2216 // If the character length is shorter than "totlen", there |
|
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
2217 // are composing characters; copy them as-is. |
|
2307
81527f127fb1
Fix: Composing characters in :s substitute text were dropped.
Bram Moolenaar <bram@vim.org>
parents:
2247
diff
changeset
|
2218 if (clen < totlen) |
|
81527f127fb1
Fix: Composing characters in :s substitute text were dropped.
Bram Moolenaar <bram@vim.org>
parents:
2247
diff
changeset
|
2219 { |
|
81527f127fb1
Fix: Composing characters in :s substitute text were dropped.
Bram Moolenaar <bram@vim.org>
parents:
2247
diff
changeset
|
2220 if (copy) |
|
29048
c98fc7a4dde4
patch 8.2.5046: vim_regsub() can overwrite the destination
Bram Moolenaar <Bram@vim.org>
parents:
28692
diff
changeset
|
2221 { |
|
c98fc7a4dde4
patch 8.2.5046: vim_regsub() can overwrite the destination
Bram Moolenaar <Bram@vim.org>
parents:
28692
diff
changeset
|
2222 if (dst + totlen - clen > dest + destlen) |
|
c98fc7a4dde4
patch 8.2.5046: vim_regsub() can overwrite the destination
Bram Moolenaar <Bram@vim.org>
parents:
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diff
changeset
|
2223 { |
|
c98fc7a4dde4
patch 8.2.5046: vim_regsub() can overwrite the destination
Bram Moolenaar <Bram@vim.org>
parents:
28692
diff
changeset
|
2224 iemsg("vim_regsub_both(): not enough space"); |
|
c98fc7a4dde4
patch 8.2.5046: vim_regsub() can overwrite the destination
Bram Moolenaar <Bram@vim.org>
parents:
28692
diff
changeset
|
2225 return 0; |
|
c98fc7a4dde4
patch 8.2.5046: vim_regsub() can overwrite the destination
Bram Moolenaar <Bram@vim.org>
parents:
28692
diff
changeset
|
2226 } |
|
2307
81527f127fb1
Fix: Composing characters in :s substitute text were dropped.
Bram Moolenaar <bram@vim.org>
parents:
2247
diff
changeset
|
2227 mch_memmove(dst + 1, src - 1 + clen, |
|
81527f127fb1
Fix: Composing characters in :s substitute text were dropped.
Bram Moolenaar <bram@vim.org>
parents:
2247
diff
changeset
|
2228 (size_t)(totlen - clen)); |
|
29048
c98fc7a4dde4
patch 8.2.5046: vim_regsub() can overwrite the destination
Bram Moolenaar <Bram@vim.org>
parents:
28692
diff
changeset
|
2229 } |
|
2307
81527f127fb1
Fix: Composing characters in :s substitute text were dropped.
Bram Moolenaar <bram@vim.org>
parents:
2247
diff
changeset
|
2230 dst += totlen - clen; |
|
81527f127fb1
Fix: Composing characters in :s substitute text were dropped.
Bram Moolenaar <bram@vim.org>
parents:
2247
diff
changeset
|
2231 } |
|
81527f127fb1
Fix: Composing characters in :s substitute text were dropped.
Bram Moolenaar <bram@vim.org>
parents:
2247
diff
changeset
|
2232 } |
|
81527f127fb1
Fix: Composing characters in :s substitute text were dropped.
Bram Moolenaar <bram@vim.org>
parents:
2247
diff
changeset
|
2233 src += totlen - 1; |
| 7 | 2234 } |
|
15603
639b8318472c
patch 8.1.0809: too many #ifdefs
Bram Moolenaar <Bram@vim.org>
parents:
15555
diff
changeset
|
2235 else if (copy) |
|
29048
c98fc7a4dde4
patch 8.2.5046: vim_regsub() can overwrite the destination
Bram Moolenaar <Bram@vim.org>
parents:
28692
diff
changeset
|
2236 { |
|
c98fc7a4dde4
patch 8.2.5046: vim_regsub() can overwrite the destination
Bram Moolenaar <Bram@vim.org>
parents:
28692
diff
changeset
|
2237 if (dst + 1 > dest + destlen) |
|
c98fc7a4dde4
patch 8.2.5046: vim_regsub() can overwrite the destination
Bram Moolenaar <Bram@vim.org>
parents:
28692
diff
changeset
|
2238 { |
|
c98fc7a4dde4
patch 8.2.5046: vim_regsub() can overwrite the destination
Bram Moolenaar <Bram@vim.org>
parents:
28692
diff
changeset
|
2239 iemsg("vim_regsub_both(): not enough space"); |
|
c98fc7a4dde4
patch 8.2.5046: vim_regsub() can overwrite the destination
Bram Moolenaar <Bram@vim.org>
parents:
28692
diff
changeset
|
2240 return 0; |
|
c98fc7a4dde4
patch 8.2.5046: vim_regsub() can overwrite the destination
Bram Moolenaar <Bram@vim.org>
parents:
28692
diff
changeset
|
2241 } |
|
c98fc7a4dde4
patch 8.2.5046: vim_regsub() can overwrite the destination
Bram Moolenaar <Bram@vim.org>
parents:
28692
diff
changeset
|
2242 *dst = cc; |
|
c98fc7a4dde4
patch 8.2.5046: vim_regsub() can overwrite the destination
Bram Moolenaar <Bram@vim.org>
parents:
28692
diff
changeset
|
2243 } |
| 7 | 2244 dst++; |
| 2245 } | |
| 2246 else | |
| 2247 { | |
| 2248 if (REG_MULTI) | |
| 2249 { | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2250 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
|
2251 if (clnum < 0 || rex.reg_mmatch->endpos[no].lnum < 0) |
| 7 | 2252 s = NULL; |
| 2253 else | |
| 2254 { | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2255 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
|
2256 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
|
2257 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
|
2258 - rex.reg_mmatch->startpos[no].col; |
| 7 | 2259 else |
| 2260 len = (int)STRLEN(s); | |
| 2261 } | |
| 2262 } | |
| 2263 else | |
| 2264 { | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2265 s = rex.reg_match->startp[no]; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2266 if (rex.reg_match->endp[no] == NULL) |
| 7 | 2267 s = NULL; |
| 2268 else | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2269 len = (int)(rex.reg_match->endp[no] - s); |
| 7 | 2270 } |
| 2271 if (s != NULL) | |
| 2272 { | |
| 2273 for (;;) | |
| 2274 { | |
| 2275 if (len == 0) | |
| 2276 { | |
| 2277 if (REG_MULTI) | |
| 2278 { | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2279 if (rex.reg_mmatch->endpos[no].lnum == clnum) |
| 7 | 2280 break; |
| 2281 if (copy) | |
|
29048
c98fc7a4dde4
patch 8.2.5046: vim_regsub() can overwrite the destination
Bram Moolenaar <Bram@vim.org>
parents:
28692
diff
changeset
|
2282 { |
|
c98fc7a4dde4
patch 8.2.5046: vim_regsub() can overwrite the destination
Bram Moolenaar <Bram@vim.org>
parents:
28692
diff
changeset
|
2283 if (dst + 1 > dest + destlen) |
|
c98fc7a4dde4
patch 8.2.5046: vim_regsub() can overwrite the destination
Bram Moolenaar <Bram@vim.org>
parents:
28692
diff
changeset
|
2284 { |
|
c98fc7a4dde4
patch 8.2.5046: vim_regsub() can overwrite the destination
Bram Moolenaar <Bram@vim.org>
parents:
28692
diff
changeset
|
2285 iemsg("vim_regsub_both(): not enough space"); |
|
c98fc7a4dde4
patch 8.2.5046: vim_regsub() can overwrite the destination
Bram Moolenaar <Bram@vim.org>
parents:
28692
diff
changeset
|
2286 return 0; |
|
c98fc7a4dde4
patch 8.2.5046: vim_regsub() can overwrite the destination
Bram Moolenaar <Bram@vim.org>
parents:
28692
diff
changeset
|
2287 } |
| 7 | 2288 *dst = CAR; |
|
29048
c98fc7a4dde4
patch 8.2.5046: vim_regsub() can overwrite the destination
Bram Moolenaar <Bram@vim.org>
parents:
28692
diff
changeset
|
2289 } |
| 7 | 2290 ++dst; |
| 2291 s = reg_getline(++clnum); | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2292 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
|
2293 len = rex.reg_mmatch->endpos[no].col; |
| 7 | 2294 else |
| 2295 len = (int)STRLEN(s); | |
| 2296 } | |
| 2297 else | |
| 2298 break; | |
| 2299 } | |
|
18812
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
2300 else if (*s == NUL) // we hit NUL. |
| 7 | 2301 { |
| 2302 if (copy) | |
|
25306
078edc1821bf
patch 8.2.3190: error messages are spread out
Bram Moolenaar <Bram@vim.org>
parents:
24768
diff
changeset
|
2303 iemsg(_(e_damaged_match_string)); |
| 7 | 2304 goto exit; |
| 2305 } | |
| 2306 else | |
| 2307 { | |
|
29048
c98fc7a4dde4
patch 8.2.5046: vim_regsub() can overwrite the destination
Bram Moolenaar <Bram@vim.org>
parents:
28692
diff
changeset
|
2308 if ((flags & REGSUB_BACKSLASH) |
|
c98fc7a4dde4
patch 8.2.5046: vim_regsub() can overwrite the destination
Bram Moolenaar <Bram@vim.org>
parents:
28692
diff
changeset
|
2309 && (*s == CAR || *s == '\\')) |
| 7 | 2310 { |
| 2311 /* | |
| 2312 * Insert a backslash in front of a CR, otherwise | |
| 2313 * it will be replaced by a line break. | |
| 2314 * Number of backslashes will be halved later, | |
| 2315 * double them here. | |
| 2316 */ | |
| 2317 if (copy) | |
| 2318 { | |
|
29048
c98fc7a4dde4
patch 8.2.5046: vim_regsub() can overwrite the destination
Bram Moolenaar <Bram@vim.org>
parents:
28692
diff
changeset
|
2319 if (dst + 2 > dest + destlen) |
|
c98fc7a4dde4
patch 8.2.5046: vim_regsub() can overwrite the destination
Bram Moolenaar <Bram@vim.org>
parents:
28692
diff
changeset
|
2320 { |
|
c98fc7a4dde4
patch 8.2.5046: vim_regsub() can overwrite the destination
Bram Moolenaar <Bram@vim.org>
parents:
28692
diff
changeset
|
2321 iemsg("vim_regsub_both(): not enough space"); |
|
c98fc7a4dde4
patch 8.2.5046: vim_regsub() can overwrite the destination
Bram Moolenaar <Bram@vim.org>
parents:
28692
diff
changeset
|
2322 return 0; |
|
c98fc7a4dde4
patch 8.2.5046: vim_regsub() can overwrite the destination
Bram Moolenaar <Bram@vim.org>
parents:
28692
diff
changeset
|
2323 } |
| 7 | 2324 dst[0] = '\\'; |
| 2325 dst[1] = *s; | |
| 2326 } | |
| 2327 dst += 2; | |
| 2328 } | |
| 2329 else | |
| 2330 { | |
| 772 | 2331 if (has_mbyte) |
| 2332 c = mb_ptr2char(s); | |
| 2333 else | |
| 2334 c = *s; | |
| 2335 | |
| 4244 | 2336 if (func_one != (fptr_T)NULL) |
|
18812
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
2337 // Turbo C complains without the typecast |
| 4244 | 2338 func_one = (fptr_T)(func_one(&cc, c)); |
| 2339 else if (func_all != (fptr_T)NULL) | |
|
18812
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
2340 // Turbo C complains without the typecast |
| 4244 | 2341 func_all = (fptr_T)(func_all(&cc, c)); |
|
18812
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
2342 else // just copy |
| 772 | 2343 cc = c; |
| 2344 | |
| 2345 if (has_mbyte) | |
| 7 | 2346 { |
| 1332 | 2347 int l; |
|
29048
c98fc7a4dde4
patch 8.2.5046: vim_regsub() can overwrite the destination
Bram Moolenaar <Bram@vim.org>
parents:
28692
diff
changeset
|
2348 int charlen; |
| 1332 | 2349 |
|
18812
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
2350 // Copy composing characters separately, one |
|
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
2351 // at a time. |
| 1332 | 2352 if (enc_utf8) |
| 2353 l = utf_ptr2len(s) - 1; | |
| 2354 else | |
| 2355 l = mb_ptr2len(s) - 1; | |
| 772 | 2356 |
| 2357 s += l; | |
| 2358 len -= l; | |
|
29048
c98fc7a4dde4
patch 8.2.5046: vim_regsub() can overwrite the destination
Bram Moolenaar <Bram@vim.org>
parents:
28692
diff
changeset
|
2359 charlen = mb_char2len(cc); |
| 772 | 2360 if (copy) |
|
29048
c98fc7a4dde4
patch 8.2.5046: vim_regsub() can overwrite the destination
Bram Moolenaar <Bram@vim.org>
parents:
28692
diff
changeset
|
2361 { |
|
c98fc7a4dde4
patch 8.2.5046: vim_regsub() can overwrite the destination
Bram Moolenaar <Bram@vim.org>
parents:
28692
diff
changeset
|
2362 if (dst + charlen > dest + destlen) |
|
c98fc7a4dde4
patch 8.2.5046: vim_regsub() can overwrite the destination
Bram Moolenaar <Bram@vim.org>
parents:
28692
diff
changeset
|
2363 { |
|
c98fc7a4dde4
patch 8.2.5046: vim_regsub() can overwrite the destination
Bram Moolenaar <Bram@vim.org>
parents:
28692
diff
changeset
|
2364 iemsg("vim_regsub_both(): not enough space"); |
|
c98fc7a4dde4
patch 8.2.5046: vim_regsub() can overwrite the destination
Bram Moolenaar <Bram@vim.org>
parents:
28692
diff
changeset
|
2365 return 0; |
|
c98fc7a4dde4
patch 8.2.5046: vim_regsub() can overwrite the destination
Bram Moolenaar <Bram@vim.org>
parents:
28692
diff
changeset
|
2366 } |
| 772 | 2367 mb_char2bytes(cc, dst); |
|
29048
c98fc7a4dde4
patch 8.2.5046: vim_regsub() can overwrite the destination
Bram Moolenaar <Bram@vim.org>
parents:
28692
diff
changeset
|
2368 } |
|
c98fc7a4dde4
patch 8.2.5046: vim_regsub() can overwrite the destination
Bram Moolenaar <Bram@vim.org>
parents:
28692
diff
changeset
|
2369 dst += charlen - 1; |
| 7 | 2370 } |
|
15603
639b8318472c
patch 8.1.0809: too many #ifdefs
Bram Moolenaar <Bram@vim.org>
parents:
15555
diff
changeset
|
2371 else if (copy) |
|
29048
c98fc7a4dde4
patch 8.2.5046: vim_regsub() can overwrite the destination
Bram Moolenaar <Bram@vim.org>
parents:
28692
diff
changeset
|
2372 { |
|
c98fc7a4dde4
patch 8.2.5046: vim_regsub() can overwrite the destination
Bram Moolenaar <Bram@vim.org>
parents:
28692
diff
changeset
|
2373 if (dst + 1 > dest + destlen) |
|
c98fc7a4dde4
patch 8.2.5046: vim_regsub() can overwrite the destination
Bram Moolenaar <Bram@vim.org>
parents:
28692
diff
changeset
|
2374 { |
|
c98fc7a4dde4
patch 8.2.5046: vim_regsub() can overwrite the destination
Bram Moolenaar <Bram@vim.org>
parents:
28692
diff
changeset
|
2375 iemsg("vim_regsub_both(): not enough space"); |
|
c98fc7a4dde4
patch 8.2.5046: vim_regsub() can overwrite the destination
Bram Moolenaar <Bram@vim.org>
parents:
28692
diff
changeset
|
2376 return 0; |
|
c98fc7a4dde4
patch 8.2.5046: vim_regsub() can overwrite the destination
Bram Moolenaar <Bram@vim.org>
parents:
28692
diff
changeset
|
2377 } |
|
c98fc7a4dde4
patch 8.2.5046: vim_regsub() can overwrite the destination
Bram Moolenaar <Bram@vim.org>
parents:
28692
diff
changeset
|
2378 *dst = cc; |
|
c98fc7a4dde4
patch 8.2.5046: vim_regsub() can overwrite the destination
Bram Moolenaar <Bram@vim.org>
parents:
28692
diff
changeset
|
2379 } |
| 772 | 2380 dst++; |
| 7 | 2381 } |
| 772 | 2382 |
| 7 | 2383 ++s; |
| 2384 --len; | |
| 2385 } | |
| 2386 } | |
| 2387 } | |
| 2388 no = -1; | |
| 2389 } | |
| 2390 } | |
| 2391 if (copy) | |
| 2392 *dst = NUL; | |
| 2393 | |
| 2394 exit: | |
| 2395 return (int)((dst - dest) + 1); | |
| 2396 } | |
| 2397 | |
| 2398 #ifdef FEAT_EVAL | |
| 2399 /* | |
| 2011 | 2400 * Call reg_getline() with the line numbers from the submatch. If a |
| 2401 * substitute() was used the reg_maxline and other values have been | |
| 2402 * overwritten. | |
| 2403 */ | |
| 2404 static char_u * | |
|
7833
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
2405 reg_getline_submatch(linenr_T lnum) |
| 2011 | 2406 { |
| 2407 char_u *s; | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2408 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
|
2409 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
|
2410 |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2411 rex.reg_firstlnum = rsm.sm_firstlnum; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2412 rex.reg_maxline = rsm.sm_maxline; |
| 2011 | 2413 |
| 2414 s = reg_getline(lnum); | |
| 2415 | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2416 rex.reg_firstlnum = save_first; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2417 rex.reg_maxline = save_max; |
| 2011 | 2418 return s; |
| 2419 } | |
| 2420 | |
| 2421 /* | |
| 1209 | 2422 * Used for the submatch() function: get the string from the n'th submatch in |
| 7 | 2423 * allocated memory. |
| 2424 * Returns NULL when not in a ":s" command and for a non-existing submatch. | |
| 2425 */ | |
| 2426 char_u * | |
|
7833
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
2427 reg_submatch(int no) |
| 7 | 2428 { |
| 2429 char_u *retval = NULL; | |
| 2430 char_u *s; | |
| 2431 int len; | |
| 2432 int round; | |
| 2433 linenr_T lnum; | |
| 2434 | |
| 840 | 2435 if (!can_f_submatch || no < 0) |
| 7 | 2436 return NULL; |
| 2437 | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2438 if (rsm.sm_match == NULL) |
| 7 | 2439 { |
| 2440 /* | |
| 2441 * First round: compute the length and allocate memory. | |
| 2442 * Second round: copy the text. | |
| 2443 */ | |
| 2444 for (round = 1; round <= 2; ++round) | |
| 2445 { | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2446 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
|
2447 if (lnum < 0 || rsm.sm_mmatch->endpos[no].lnum < 0) |
| 7 | 2448 return NULL; |
| 2449 | |
|
16040
13ab270dd68d
patch 8.1.1025: checking NULL pointer after addition
Bram Moolenaar <Bram@vim.org>
parents:
15967
diff
changeset
|
2450 s = reg_getline_submatch(lnum); |
|
13ab270dd68d
patch 8.1.1025: checking NULL pointer after addition
Bram Moolenaar <Bram@vim.org>
parents:
15967
diff
changeset
|
2451 if (s == NULL) // anti-crash check, cannot happen? |
| 7 | 2452 break; |
|
16040
13ab270dd68d
patch 8.1.1025: checking NULL pointer after addition
Bram Moolenaar <Bram@vim.org>
parents:
15967
diff
changeset
|
2453 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
|
2454 if (rsm.sm_mmatch->endpos[no].lnum == lnum) |
| 7 | 2455 { |
|
18812
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
2456 // 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
|
2457 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
|
2458 - rsm.sm_mmatch->startpos[no].col; |
| 7 | 2459 if (round == 2) |
| 418 | 2460 vim_strncpy(retval, s, len); |
| 7 | 2461 ++len; |
| 2462 } | |
| 2463 else | |
| 2464 { | |
|
18812
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
2465 // 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
|
2466 // lines completely and end line up to end col. |
| 7 | 2467 len = (int)STRLEN(s); |
| 2468 if (round == 2) | |
| 2469 { | |
| 2470 STRCPY(retval, s); | |
| 2471 retval[len] = '\n'; | |
| 2472 } | |
| 2473 ++len; | |
| 2474 ++lnum; | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2475 while (lnum < rsm.sm_mmatch->endpos[no].lnum) |
| 7 | 2476 { |
| 2011 | 2477 s = reg_getline_submatch(lnum++); |
| 7 | 2478 if (round == 2) |
| 2479 STRCPY(retval + len, s); | |
| 2480 len += (int)STRLEN(s); | |
| 2481 if (round == 2) | |
| 2482 retval[len] = '\n'; | |
| 2483 ++len; | |
| 2484 } | |
| 2485 if (round == 2) | |
| 2011 | 2486 STRNCPY(retval + len, reg_getline_submatch(lnum), |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2487 rsm.sm_mmatch->endpos[no].col); |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2488 len += rsm.sm_mmatch->endpos[no].col; |
| 7 | 2489 if (round == 2) |
| 2490 retval[len] = NUL; | |
| 2491 ++len; | |
| 2492 } | |
| 2493 | |
| 840 | 2494 if (retval == NULL) |
| 7 | 2495 { |
|
16768
695d9ef00b03
patch 8.1.1386: unessesary type casts for lalloc()
Bram Moolenaar <Bram@vim.org>
parents:
16764
diff
changeset
|
2496 retval = alloc(len); |
| 840 | 2497 if (retval == NULL) |
| 7 | 2498 return NULL; |
| 2499 } | |
| 2500 } | |
| 2501 } | |
| 2502 else | |
| 2503 { | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2504 s = rsm.sm_match->startp[no]; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2505 if (s == NULL || rsm.sm_match->endp[no] == NULL) |
| 7 | 2506 retval = NULL; |
| 2507 else | |
|
20830
9064044fd4f6
patch 8.2.0967: unnecessary type casts for vim_strnsave()
Bram Moolenaar <Bram@vim.org>
parents:
20113
diff
changeset
|
2508 retval = vim_strnsave(s, rsm.sm_match->endp[no] - s); |
| 7 | 2509 } |
| 2510 | |
| 2511 return retval; | |
| 2512 } | |
| 5794 | 2513 |
| 2514 /* | |
| 2515 * Used for the submatch() function with the optional non-zero argument: get | |
| 2516 * the list of strings from the n'th submatch in allocated memory with NULs | |
| 2517 * represented in NLs. | |
| 2518 * Returns a list of allocated strings. Returns NULL when not in a ":s" | |
| 2519 * command, for a non-existing submatch and for any error. | |
| 2520 */ | |
| 2521 list_T * | |
|
7833
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
2522 reg_submatch_list(int no) |
| 5794 | 2523 { |
| 2524 char_u *s; | |
| 2525 linenr_T slnum; | |
| 2526 linenr_T elnum; | |
| 2527 colnr_T scol; | |
| 2528 colnr_T ecol; | |
| 2529 int i; | |
| 2530 list_T *list; | |
| 2531 int error = FALSE; | |
| 2532 | |
| 2533 if (!can_f_submatch || no < 0) | |
| 2534 return NULL; | |
| 2535 | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2536 if (rsm.sm_match == NULL) |
| 5794 | 2537 { |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2538 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
|
2539 elnum = rsm.sm_mmatch->endpos[no].lnum; |
| 5794 | 2540 if (slnum < 0 || elnum < 0) |
| 2541 return NULL; | |
| 2542 | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2543 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
|
2544 ecol = rsm.sm_mmatch->endpos[no].col; |
| 5794 | 2545 |
| 2546 list = list_alloc(); | |
| 2547 if (list == NULL) | |
| 2548 return NULL; | |
| 2549 | |
| 2550 s = reg_getline_submatch(slnum) + scol; | |
| 2551 if (slnum == elnum) | |
| 2552 { | |
| 2553 if (list_append_string(list, s, ecol - scol) == FAIL) | |
| 2554 error = TRUE; | |
| 2555 } | |
| 2556 else | |
| 2557 { | |
| 2558 if (list_append_string(list, s, -1) == FAIL) | |
| 2559 error = TRUE; | |
| 2560 for (i = 1; i < elnum - slnum; i++) | |
| 2561 { | |
| 2562 s = reg_getline_submatch(slnum + i); | |
| 2563 if (list_append_string(list, s, -1) == FAIL) | |
| 2564 error = TRUE; | |
| 2565 } | |
| 2566 s = reg_getline_submatch(elnum); | |
| 2567 if (list_append_string(list, s, ecol) == FAIL) | |
| 2568 error = TRUE; | |
| 2569 } | |
| 2570 } | |
| 2571 else | |
| 2572 { | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2573 s = rsm.sm_match->startp[no]; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2574 if (s == NULL || rsm.sm_match->endp[no] == NULL) |
| 5794 | 2575 return NULL; |
| 2576 list = list_alloc(); | |
| 2577 if (list == NULL) | |
| 2578 return NULL; | |
| 2579 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
|
2580 (int)(rsm.sm_match->endp[no] - s)) == FAIL) |
| 5794 | 2581 error = TRUE; |
| 2582 } | |
| 2583 | |
| 2584 if (error) | |
| 2585 { | |
|
8863
e1b84109506a
commit https://github.com/vim/vim/commit/107e1eef1df3b786ad3ad49fbdb9e058649303b5
Christian Brabandt <cb@256bit.org>
parents:
8825
diff
changeset
|
2586 list_free(list); |
| 5794 | 2587 return NULL; |
| 2588 } | |
|
22143
3ec9e302ec94
patch 8.2.1621: crash when using submatch(0, 1) in substitute()
Bram Moolenaar <Bram@vim.org>
parents:
20996
diff
changeset
|
2589 ++list->lv_refcount; |
| 5794 | 2590 return list; |
| 2591 } | |
| 7 | 2592 #endif |
| 4444 | 2593 |
|
19405
08f4dc2ba716
patch 8.2.0260: several lines of code are duplicated
Bram Moolenaar <Bram@vim.org>
parents:
19384
diff
changeset
|
2594 /* |
|
08f4dc2ba716
patch 8.2.0260: several lines of code are duplicated
Bram Moolenaar <Bram@vim.org>
parents:
19384
diff
changeset
|
2595 * 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
|
2596 */ |
|
08f4dc2ba716
patch 8.2.0260: several lines of code are duplicated
Bram Moolenaar <Bram@vim.org>
parents:
19384
diff
changeset
|
2597 static void |
|
08f4dc2ba716
patch 8.2.0260: several lines of code are duplicated
Bram Moolenaar <Bram@vim.org>
parents:
19384
diff
changeset
|
2598 init_regexec_multi( |
|
08f4dc2ba716
patch 8.2.0260: several lines of code are duplicated
Bram Moolenaar <Bram@vim.org>
parents:
19384
diff
changeset
|
2599 regmmatch_T *rmp, |
|
08f4dc2ba716
patch 8.2.0260: several lines of code are duplicated
Bram Moolenaar <Bram@vim.org>
parents:
19384
diff
changeset
|
2600 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
|
2601 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
|
2602 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
|
2603 { |
|
08f4dc2ba716
patch 8.2.0260: several lines of code are duplicated
Bram Moolenaar <Bram@vim.org>
parents:
19384
diff
changeset
|
2604 rex.reg_match = NULL; |
|
08f4dc2ba716
patch 8.2.0260: several lines of code are duplicated
Bram Moolenaar <Bram@vim.org>
parents:
19384
diff
changeset
|
2605 rex.reg_mmatch = rmp; |
|
08f4dc2ba716
patch 8.2.0260: several lines of code are duplicated
Bram Moolenaar <Bram@vim.org>
parents:
19384
diff
changeset
|
2606 rex.reg_buf = buf; |
|
08f4dc2ba716
patch 8.2.0260: several lines of code are duplicated
Bram Moolenaar <Bram@vim.org>
parents:
19384
diff
changeset
|
2607 rex.reg_win = win; |
|
08f4dc2ba716
patch 8.2.0260: several lines of code are duplicated
Bram Moolenaar <Bram@vim.org>
parents:
19384
diff
changeset
|
2608 rex.reg_firstlnum = lnum; |
|
08f4dc2ba716
patch 8.2.0260: several lines of code are duplicated
Bram Moolenaar <Bram@vim.org>
parents:
19384
diff
changeset
|
2609 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
|
2610 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
|
2611 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
|
2612 rex.reg_icombine = FALSE; |
|
08f4dc2ba716
patch 8.2.0260: several lines of code are duplicated
Bram Moolenaar <Bram@vim.org>
parents:
19384
diff
changeset
|
2613 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
|
2614 } |
|
08f4dc2ba716
patch 8.2.0260: several lines of code are duplicated
Bram Moolenaar <Bram@vim.org>
parents:
19384
diff
changeset
|
2615 |
|
18019
68fd5296bf73
patch 8.1.2005: the regexp.c file is too big
Bram Moolenaar <Bram@vim.org>
parents:
17966
diff
changeset
|
2616 #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
|
2617 |
| 4444 | 2618 static regengine_T bt_regengine = |
| 2619 { | |
| 2620 bt_regcomp, | |
|
4805
66803af09906
updated for version 7.3.1149
Bram Moolenaar <bram@vim.org>
parents:
4770
diff
changeset
|
2621 bt_regfree, |
| 4444 | 2622 bt_regexec_nl, |
| 6328 | 2623 bt_regexec_multi, |
| 4444 | 2624 }; |
| 2625 | |
| 2626 #include "regexp_nfa.c" | |
| 2627 | |
| 2628 static regengine_T nfa_regengine = | |
| 2629 { | |
| 2630 nfa_regcomp, | |
|
4805
66803af09906
updated for version 7.3.1149
Bram Moolenaar <bram@vim.org>
parents:
4770
diff
changeset
|
2631 nfa_regfree, |
| 4444 | 2632 nfa_regexec_nl, |
| 6328 | 2633 nfa_regexec_multi, |
| 4444 | 2634 }; |
| 2635 | |
|
18812
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
2636 // Which regexp engine to use? Needed for vim_regcomp(). |
|
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
2637 // Must match with 'regexpengine'. |
| 4444 | 2638 static int regexp_engine = 0; |
| 6328 | 2639 |
| 4444 | 2640 #ifdef DEBUG |
| 2641 static char_u regname[][30] = { | |
| 2642 "AUTOMATIC Regexp Engine", | |
|
4579
7a2be4a39423
updated for version 7.3.1037
Bram Moolenaar <bram@vim.org>
parents:
4505
diff
changeset
|
2643 "BACKTRACKING Regexp Engine", |
| 4444 | 2644 "NFA Regexp Engine" |
| 2645 }; | |
| 2646 #endif | |
| 2647 | |
| 2648 /* | |
| 2649 * Compile a regular expression into internal code. | |
|
4805
66803af09906
updated for version 7.3.1149
Bram Moolenaar <bram@vim.org>
parents:
4770
diff
changeset
|
2650 * Returns the program in allocated memory. |
|
66803af09906
updated for version 7.3.1149
Bram Moolenaar <bram@vim.org>
parents:
4770
diff
changeset
|
2651 * Use vim_regfree() to free the memory. |
|
66803af09906
updated for version 7.3.1149
Bram Moolenaar <bram@vim.org>
parents:
4770
diff
changeset
|
2652 * Returns NULL for an error. |
| 4444 | 2653 */ |
| 2654 regprog_T * | |
|
7833
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
2655 vim_regcomp(char_u *expr_arg, int re_flags) |
| 4444 | 2656 { |
| 2657 regprog_T *prog = NULL; | |
| 2658 char_u *expr = expr_arg; | |
|
18949
5c405689da3e
patch 8.2.0035: saving and restoring called_emsg is clumsy
Bram Moolenaar <Bram@vim.org>
parents:
18812
diff
changeset
|
2659 int called_emsg_before; |
| 4444 | 2660 |
| 2661 regexp_engine = p_re; | |
| 2662 | |
|
18812
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
2663 // Check for prefix "\%#=", that sets the regexp engine |
| 4444 | 2664 if (STRNCMP(expr, "\\%#=", 4) == 0) |
| 2665 { | |
| 2666 int newengine = expr[4] - '0'; | |
| 2667 | |
| 2668 if (newengine == AUTOMATIC_ENGINE | |
| 2669 || newengine == BACKTRACKING_ENGINE | |
| 2670 || newengine == NFA_ENGINE) | |
| 2671 { | |
| 2672 regexp_engine = expr[4] - '0'; | |
| 2673 expr += 5; | |
| 2674 #ifdef DEBUG | |
|
15470
55ccc2d353bd
patch 8.1.0743: giving error messages is not flexible
Bram Moolenaar <Bram@vim.org>
parents:
15339
diff
changeset
|
2675 smsg("New regexp mode selected (%d): %s", |
| 5897 | 2676 regexp_engine, regname[newengine]); |
| 4444 | 2677 #endif |
| 2678 } | |
| 2679 else | |
| 2680 { | |
|
26962
85866e069c24
patch 8.2.4010: error messages are spread out
Bram Moolenaar <Bram@vim.org>
parents:
26958
diff
changeset
|
2681 emsg(_(e_percent_hash_can_only_be_followed_by_zero_one_two_automatic_engine_will_be_used)); |
| 4444 | 2682 regexp_engine = AUTOMATIC_ENGINE; |
| 2683 } | |
| 2684 } | |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
2685 #ifdef DEBUG |
| 4444 | 2686 bt_regengine.expr = expr; |
| 2687 nfa_regengine.expr = expr; | |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
2688 #endif |
|
15856
e44b7caaf373
patch 8.1.0935: old regexp engine may use invalid buffer
Bram Moolenaar <Bram@vim.org>
parents:
15854
diff
changeset
|
2689 // reg_iswordc() uses rex.reg_buf |
|
e44b7caaf373
patch 8.1.0935: old regexp engine may use invalid buffer
Bram Moolenaar <Bram@vim.org>
parents:
15854
diff
changeset
|
2690 rex.reg_buf = curbuf; |
| 4444 | 2691 |
| 2692 /* | |
| 2693 * First try the NFA engine, unless backtracking was requested. | |
| 2694 */ | |
|
18949
5c405689da3e
patch 8.2.0035: saving and restoring called_emsg is clumsy
Bram Moolenaar <Bram@vim.org>
parents:
18812
diff
changeset
|
2695 called_emsg_before = called_emsg; |
| 4444 | 2696 if (regexp_engine != BACKTRACKING_ENGINE) |
|
13244
ac42c4b11dbc
patch 8.0.1496: clearing a pointer takes two lines
Christian Brabandt <cb@256bit.org>
parents:
12752
diff
changeset
|
2697 prog = nfa_regengine.regcomp(expr, |
| 6533 | 2698 re_flags + (regexp_engine == AUTOMATIC_ENGINE ? RE_AUTO : 0)); |
| 4444 | 2699 else |
| 2700 prog = bt_regengine.regcomp(expr, re_flags); | |
| 2701 | |
|
18812
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
2702 // Check for error compiling regexp with initial engine. |
| 6328 | 2703 if (prog == NULL) |
| 4444 | 2704 { |
| 4460 | 2705 #ifdef BT_REGEXP_DEBUG_LOG |
|
23471
a7cdfc8e4b6e
patch 8.2.2278: falling back to old regexp engine can some patterns
Bram Moolenaar <Bram@vim.org>
parents:
22167
diff
changeset
|
2706 if (regexp_engine == BACKTRACKING_ENGINE) // debugging log for BT engine |
| 4444 | 2707 { |
| 2708 FILE *f; | |
| 4460 | 2709 f = fopen(BT_REGEXP_DEBUG_LOG_NAME, "a"); |
| 4444 | 2710 if (f) |
| 2711 { | |
|
4762
47906f888725
updated for version 7.3.1128
Bram Moolenaar <bram@vim.org>
parents:
4760
diff
changeset
|
2712 fprintf(f, "Syntax error in \"%s\"\n", expr); |
| 4444 | 2713 fclose(f); |
| 2714 } | |
| 2715 else | |
|
15470
55ccc2d353bd
patch 8.1.0743: giving error messages is not flexible
Bram Moolenaar <Bram@vim.org>
parents:
15339
diff
changeset
|
2716 semsg("(NFA) Could not open \"%s\" to write !!!", |
|
13244
ac42c4b11dbc
patch 8.0.1496: clearing a pointer takes two lines
Christian Brabandt <cb@256bit.org>
parents:
12752
diff
changeset
|
2717 BT_REGEXP_DEBUG_LOG_NAME); |
| 4444 | 2718 } |
| 2719 #endif | |
| 2720 /* | |
| 6328 | 2721 * If the NFA engine failed, try the backtracking engine. |
| 6533 | 2722 * The NFA engine also fails for patterns that it can't handle well |
| 2723 * but are still valid patterns, thus a retry should work. | |
|
15935
ff00d207cc5e
patch 8.1.0973: pattern with syntax error gives threee error messages
Bram Moolenaar <Bram@vim.org>
parents:
15860
diff
changeset
|
2724 * But don't try if an error message was given. |
| 6533 | 2725 */ |
|
18949
5c405689da3e
patch 8.2.0035: saving and restoring called_emsg is clumsy
Bram Moolenaar <Bram@vim.org>
parents:
18812
diff
changeset
|
2726 if (regexp_engine == AUTOMATIC_ENGINE |
|
5c405689da3e
patch 8.2.0035: saving and restoring called_emsg is clumsy
Bram Moolenaar <Bram@vim.org>
parents:
18812
diff
changeset
|
2727 && called_emsg == called_emsg_before) |
| 6328 | 2728 { |
| 6533 | 2729 regexp_engine = BACKTRACKING_ENGINE; |
|
23471
a7cdfc8e4b6e
patch 8.2.2278: falling back to old regexp engine can some patterns
Bram Moolenaar <Bram@vim.org>
parents:
22167
diff
changeset
|
2730 #ifdef FEAT_EVAL |
|
a7cdfc8e4b6e
patch 8.2.2278: falling back to old regexp engine can some patterns
Bram Moolenaar <Bram@vim.org>
parents:
22167
diff
changeset
|
2731 report_re_switch(expr); |
|
a7cdfc8e4b6e
patch 8.2.2278: falling back to old regexp engine can some patterns
Bram Moolenaar <Bram@vim.org>
parents:
22167
diff
changeset
|
2732 #endif |
|
4762
47906f888725
updated for version 7.3.1128
Bram Moolenaar <bram@vim.org>
parents:
4760
diff
changeset
|
2733 prog = bt_regengine.regcomp(expr, re_flags); |
| 6328 | 2734 } |
|
4762
47906f888725
updated for version 7.3.1128
Bram Moolenaar <bram@vim.org>
parents:
4760
diff
changeset
|
2735 } |
| 4444 | 2736 |
| 6328 | 2737 if (prog != NULL) |
| 2738 { | |
|
18812
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
2739 // Store the info needed to call regcomp() again when the engine turns |
|
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
2740 // out to be very slow when executing it. |
| 6328 | 2741 prog->re_engine = regexp_engine; |
| 2742 prog->re_flags = re_flags; | |
| 2743 } | |
| 2744 | |
| 4444 | 2745 return prog; |
| 2746 } | |
| 2747 | |
| 2748 /* | |
|
4805
66803af09906
updated for version 7.3.1149
Bram Moolenaar <bram@vim.org>
parents:
4770
diff
changeset
|
2749 * Free a compiled regexp program, returned by vim_regcomp(). |
|
66803af09906
updated for version 7.3.1149
Bram Moolenaar <bram@vim.org>
parents:
4770
diff
changeset
|
2750 */ |
|
66803af09906
updated for version 7.3.1149
Bram Moolenaar <bram@vim.org>
parents:
4770
diff
changeset
|
2751 void |
|
7833
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
2752 vim_regfree(regprog_T *prog) |
|
4805
66803af09906
updated for version 7.3.1149
Bram Moolenaar <bram@vim.org>
parents:
4770
diff
changeset
|
2753 { |
|
66803af09906
updated for version 7.3.1149
Bram Moolenaar <bram@vim.org>
parents:
4770
diff
changeset
|
2754 if (prog != NULL) |
|
66803af09906
updated for version 7.3.1149
Bram Moolenaar <bram@vim.org>
parents:
4770
diff
changeset
|
2755 prog->engine->regfree(prog); |
|
66803af09906
updated for version 7.3.1149
Bram Moolenaar <bram@vim.org>
parents:
4770
diff
changeset
|
2756 } |
|
66803af09906
updated for version 7.3.1149
Bram Moolenaar <bram@vim.org>
parents:
4770
diff
changeset
|
2757 |
|
18019
68fd5296bf73
patch 8.1.2005: the regexp.c file is too big
Bram Moolenaar <Bram@vim.org>
parents:
17966
diff
changeset
|
2758 #if defined(EXITFREE) || defined(PROTO) |
|
68fd5296bf73
patch 8.1.2005: the regexp.c file is too big
Bram Moolenaar <Bram@vim.org>
parents:
17966
diff
changeset
|
2759 void |
|
68fd5296bf73
patch 8.1.2005: the regexp.c file is too big
Bram Moolenaar <Bram@vim.org>
parents:
17966
diff
changeset
|
2760 free_regexp_stuff(void) |
|
68fd5296bf73
patch 8.1.2005: the regexp.c file is too big
Bram Moolenaar <Bram@vim.org>
parents:
17966
diff
changeset
|
2761 { |
|
68fd5296bf73
patch 8.1.2005: the regexp.c file is too big
Bram Moolenaar <Bram@vim.org>
parents:
17966
diff
changeset
|
2762 ga_clear(®stack); |
|
68fd5296bf73
patch 8.1.2005: the regexp.c file is too big
Bram Moolenaar <Bram@vim.org>
parents:
17966
diff
changeset
|
2763 ga_clear(&backpos); |
|
68fd5296bf73
patch 8.1.2005: the regexp.c file is too big
Bram Moolenaar <Bram@vim.org>
parents:
17966
diff
changeset
|
2764 vim_free(reg_tofree); |
|
68fd5296bf73
patch 8.1.2005: the regexp.c file is too big
Bram Moolenaar <Bram@vim.org>
parents:
17966
diff
changeset
|
2765 vim_free(reg_prev_sub); |
|
68fd5296bf73
patch 8.1.2005: the regexp.c file is too big
Bram Moolenaar <Bram@vim.org>
parents:
17966
diff
changeset
|
2766 } |
|
68fd5296bf73
patch 8.1.2005: the regexp.c file is too big
Bram Moolenaar <Bram@vim.org>
parents:
17966
diff
changeset
|
2767 #endif |
|
68fd5296bf73
patch 8.1.2005: the regexp.c file is too big
Bram Moolenaar <Bram@vim.org>
parents:
17966
diff
changeset
|
2768 |
| 6328 | 2769 #ifdef FEAT_EVAL |
| 2770 static void | |
|
7833
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
2771 report_re_switch(char_u *pat) |
| 6328 | 2772 { |
| 2773 if (p_verbose > 0) | |
| 2774 { | |
| 2775 verbose_enter(); | |
|
15543
dd725a8ab112
patch 8.1.0779: argument for message functions is inconsistent
Bram Moolenaar <Bram@vim.org>
parents:
15480
diff
changeset
|
2776 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
|
2777 msg_puts((char *)pat); |
| 6328 | 2778 verbose_leave(); |
| 2779 } | |
| 2780 } | |
| 2781 #endif | |
| 2782 | |
|
26336
a2e6da79274d
patch 8.2.3699: the +title feature adds a lot of #ifdef but little code
Bram Moolenaar <Bram@vim.org>
parents:
26161
diff
changeset
|
2783 #if defined(FEAT_X11) || defined(PROTO) |
|
4805
66803af09906
updated for version 7.3.1149
Bram Moolenaar <bram@vim.org>
parents:
4770
diff
changeset
|
2784 /* |
|
15306
7fff2d18e191
patch 8.1.0661: clipboard regexp might be used recursively
Bram Moolenaar <Bram@vim.org>
parents:
15211
diff
changeset
|
2785 * Return whether "prog" is currently being executed. |
|
7fff2d18e191
patch 8.1.0661: clipboard regexp might be used recursively
Bram Moolenaar <Bram@vim.org>
parents:
15211
diff
changeset
|
2786 */ |
|
7fff2d18e191
patch 8.1.0661: clipboard regexp might be used recursively
Bram Moolenaar <Bram@vim.org>
parents:
15211
diff
changeset
|
2787 int |
|
7fff2d18e191
patch 8.1.0661: clipboard regexp might be used recursively
Bram Moolenaar <Bram@vim.org>
parents:
15211
diff
changeset
|
2788 regprog_in_use(regprog_T *prog) |
|
7fff2d18e191
patch 8.1.0661: clipboard regexp might be used recursively
Bram Moolenaar <Bram@vim.org>
parents:
15211
diff
changeset
|
2789 { |
|
7fff2d18e191
patch 8.1.0661: clipboard regexp might be used recursively
Bram Moolenaar <Bram@vim.org>
parents:
15211
diff
changeset
|
2790 return prog->re_in_use; |
|
7fff2d18e191
patch 8.1.0661: clipboard regexp might be used recursively
Bram Moolenaar <Bram@vim.org>
parents:
15211
diff
changeset
|
2791 } |
|
15555
d89c5b339c2a
patch 8.1.0785: depending on the configuration some functions are unused
Bram Moolenaar <Bram@vim.org>
parents:
15543
diff
changeset
|
2792 #endif |
|
15306
7fff2d18e191
patch 8.1.0661: clipboard regexp might be used recursively
Bram Moolenaar <Bram@vim.org>
parents:
15211
diff
changeset
|
2793 |
|
7fff2d18e191
patch 8.1.0661: clipboard regexp might be used recursively
Bram Moolenaar <Bram@vim.org>
parents:
15211
diff
changeset
|
2794 /* |
| 4444 | 2795 * Match a regexp against a string. |
|
29048
c98fc7a4dde4
patch 8.2.5046: vim_regsub() can overwrite the destination
Bram Moolenaar <Bram@vim.org>
parents:
28692
diff
changeset
|
2796 * "rmp->regprog" must be a compiled regexp as returned by vim_regcomp(). |
| 6375 | 2797 * Note: "rmp->regprog" may be freed and changed. |
| 4444 | 2798 * Uses curbuf for line count and 'iskeyword'. |
| 6328 | 2799 * When "nl" is TRUE consider a "\n" in "line" to be a line break. |
| 4444 | 2800 * |
| 2801 * Return TRUE if there is a match, FALSE if not. | |
| 2802 */ | |
| 6328 | 2803 static int |
|
11529
998d2cf59caa
patch 8.0.0647: syntax highlighting can make cause a freeze
Christian Brabandt <cb@256bit.org>
parents:
11527
diff
changeset
|
2804 vim_regexec_string( |
|
7833
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
2805 regmatch_T *rmp, |
|
18812
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
2806 char_u *line, // string to match against |
|
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
2807 colnr_T col, // column to start looking for match |
|
7833
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
2808 int nl) |
| 6328 | 2809 { |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2810 int result; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2811 regexec_T rex_save; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2812 int rex_in_use_save = rex_in_use; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2813 |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
2814 // Cannot use the same prog recursively, it contains state. |
|
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
2815 if (rmp->regprog->re_in_use) |
|
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
2816 { |
|
26958
d92e0d85923f
patch 8.2.4008: error messages are spread out
Bram Moolenaar <Bram@vim.org>
parents:
26952
diff
changeset
|
2817 emsg(_(e_cannot_use_pattern_recursively)); |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
2818 return FALSE; |
|
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
2819 } |
|
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
2820 rmp->regprog->re_in_use = TRUE; |
|
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
2821 |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2822 if (rex_in_use) |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
2823 // Being called recursively, save the state. |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2824 rex_save = rex; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2825 rex_in_use = TRUE; |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
2826 |
|
10245
d76ccdacb41e
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Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2827 rex.reg_startp = NULL; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2828 rex.reg_endp = NULL; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2829 rex.reg_startpos = NULL; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2830 rex.reg_endpos = NULL; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2831 |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2832 result = rmp->regprog->engine->regexec_nl(rmp, line, col, nl); |
|
14358
72d506d94f3f
patch 8.1.0194: possibly use of NULL pointer
Christian Brabandt <cb@256bit.org>
parents:
14354
diff
changeset
|
2833 rmp->regprog->re_in_use = FALSE; |
| 6328 | 2834 |
|
18812
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
2835 // NFA engine aborted because it's very slow. |
| 6328 | 2836 if (rmp->regprog->re_engine == AUTOMATIC_ENGINE |
| 2837 && result == NFA_TOO_EXPENSIVE) | |
| 2838 { | |
| 2839 int save_p_re = p_re; | |
| 2840 int re_flags = rmp->regprog->re_flags; | |
| 2841 char_u *pat = vim_strsave(((nfa_regprog_T *)rmp->regprog)->pattern); | |
| 2842 | |
| 2843 p_re = BACKTRACKING_ENGINE; | |
| 2844 vim_regfree(rmp->regprog); | |
| 2845 if (pat != NULL) | |
| 2846 { | |
| 2847 #ifdef FEAT_EVAL | |
| 2848 report_re_switch(pat); | |
| 2849 #endif | |
| 2850 rmp->regprog = vim_regcomp(pat, re_flags); | |
| 2851 if (rmp->regprog != NULL) | |
|
14358
72d506d94f3f
patch 8.1.0194: possibly use of NULL pointer
Christian Brabandt <cb@256bit.org>
parents:
14354
diff
changeset
|
2852 { |
|
72d506d94f3f
patch 8.1.0194: possibly use of NULL pointer
Christian Brabandt <cb@256bit.org>
parents:
14354
diff
changeset
|
2853 rmp->regprog->re_in_use = TRUE; |
| 6328 | 2854 result = rmp->regprog->engine->regexec_nl(rmp, line, col, nl); |
|
14358
72d506d94f3f
patch 8.1.0194: possibly use of NULL pointer
Christian Brabandt <cb@256bit.org>
parents:
14354
diff
changeset
|
2855 rmp->regprog->re_in_use = FALSE; |
|
72d506d94f3f
patch 8.1.0194: possibly use of NULL pointer
Christian Brabandt <cb@256bit.org>
parents:
14354
diff
changeset
|
2856 } |
| 6328 | 2857 vim_free(pat); |
| 2858 } | |
| 2859 | |
| 2860 p_re = save_p_re; | |
| 2861 } | |
|
10245
d76ccdacb41e
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Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2862 |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2863 rex_in_use = rex_in_use_save; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2864 if (rex_in_use) |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2865 rex = rex_save; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2866 |
| 6390 | 2867 return result > 0; |
| 6328 | 2868 } |
| 2869 | |
| 6375 | 2870 /* |
| 2871 * Note: "*prog" may be freed and changed. | |
| 6390 | 2872 * Return TRUE if there is a match, FALSE if not. |
| 6375 | 2873 */ |
| 2874 int | |
|
7833
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Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
2875 vim_regexec_prog( |
|
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
2876 regprog_T **prog, |
|
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
2877 int ignore_case, |
|
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
2878 char_u *line, |
|
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
2879 colnr_T col) |
| 6375 | 2880 { |
|
11529
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patch 8.0.0647: syntax highlighting can make cause a freeze
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parents:
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diff
changeset
|
2881 int r; |
|
998d2cf59caa
patch 8.0.0647: syntax highlighting can make cause a freeze
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parents:
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diff
changeset
|
2882 regmatch_T regmatch; |
| 6375 | 2883 |
| 2884 regmatch.regprog = *prog; | |
| 2885 regmatch.rm_ic = ignore_case; | |
|
11529
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patch 8.0.0647: syntax highlighting can make cause a freeze
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parents:
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diff
changeset
|
2886 r = vim_regexec_string(®match, line, col, FALSE); |
| 6375 | 2887 *prog = regmatch.regprog; |
| 2888 return r; | |
| 2889 } | |
| 2890 | |
| 2891 /* | |
| 2892 * Note: "rmp->regprog" may be freed and changed. | |
| 6390 | 2893 * Return TRUE if there is a match, FALSE if not. |
| 6375 | 2894 */ |
| 4444 | 2895 int |
|
7833
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Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
2896 vim_regexec(regmatch_T *rmp, char_u *line, colnr_T col) |
| 4444 | 2897 { |
|
11529
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patch 8.0.0647: syntax highlighting can make cause a freeze
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|
2898 return vim_regexec_string(rmp, line, col, FALSE); |
| 4444 | 2899 } |
| 2900 | |
| 2901 /* | |
| 2902 * Like vim_regexec(), but consider a "\n" in "line" to be a line break. | |
| 6375 | 2903 * Note: "rmp->regprog" may be freed and changed. |
| 6390 | 2904 * Return TRUE if there is a match, FALSE if not. |
| 4444 | 2905 */ |
| 2906 int | |
|
7833
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Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
2907 vim_regexec_nl(regmatch_T *rmp, char_u *line, colnr_T col) |
| 4444 | 2908 { |
|
11529
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|
2909 return vim_regexec_string(rmp, line, col, TRUE); |
| 4444 | 2910 } |
| 2911 | |
| 2912 /* | |
| 2913 * Match a regexp against multiple lines. | |
|
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|
2914 * "rmp->regprog" must be a compiled regexp as returned by vim_regcomp(). |
|
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patch 8.1.0098: segfault when pattern with z() is very slow
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changeset
|
2915 * Note: "rmp->regprog" may be freed and changed, even set to NULL. |
| 4444 | 2916 * Uses curbuf for line count and 'iskeyword'. |
| 2917 * | |
| 2918 * Return zero if there is no match. Return number of lines contained in the | |
| 2919 * match otherwise. | |
| 2920 */ | |
| 2921 long | |
|
7833
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parents:
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diff
changeset
|
2922 vim_regexec_multi( |
|
c079097365f3
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parents:
7807
diff
changeset
|
2923 regmmatch_T *rmp, |
|
18812
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patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
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|
2924 win_T *win, // window in which to search or NULL |
|
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
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|
2925 buf_T *buf, // buffer in which to search |
|
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
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diff
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|
2926 linenr_T lnum, // nr of line to start looking for match |
|
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
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18576
diff
changeset
|
2927 colnr_T col, // column to start looking for match |
|
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
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diff
changeset
|
2928 int *timed_out) // flag is set when timeout limit reached |
| 4444 | 2929 { |
|
10245
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Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2930 int result; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2931 regexec_T rex_save; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2932 int rex_in_use_save = rex_in_use; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2933 |
|
14354
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patch 8.1.0192: executing regexp recursively fails with a crash
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parents:
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diff
changeset
|
2934 // Cannot use the same prog recursively, it contains state. |
|
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
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changeset
|
2935 if (rmp->regprog->re_in_use) |
|
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
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parents:
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changeset
|
2936 { |
|
26958
d92e0d85923f
patch 8.2.4008: error messages are spread out
Bram Moolenaar <Bram@vim.org>
parents:
26952
diff
changeset
|
2937 emsg(_(e_cannot_use_pattern_recursively)); |
|
14354
ffd834f893aa
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parents:
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diff
changeset
|
2938 return FALSE; |
|
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
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diff
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|
2939 } |
|
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
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diff
changeset
|
2940 rmp->regprog->re_in_use = TRUE; |
|
ffd834f893aa
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parents:
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diff
changeset
|
2941 |
|
10245
d76ccdacb41e
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diff
changeset
|
2942 if (rex_in_use) |
|
18812
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diff
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|
2943 // Being called recursively, save the state. |
|
10245
d76ccdacb41e
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diff
changeset
|
2944 rex_save = rex; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
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parents:
10187
diff
changeset
|
2945 rex_in_use = TRUE; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2946 |
|
11521
578df034735d
patch 8.0.0643: when a pattern search is slow Vim becomes unusable
Christian Brabandt <cb@256bit.org>
parents:
11482
diff
changeset
|
2947 result = rmp->regprog->engine->regexec_multi( |
|
29071
b90bca860b5a
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Bram Moolenaar <Bram@vim.org>
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diff
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|
2948 rmp, win, buf, lnum, col, timed_out); |
|
14358
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|
2949 rmp->regprog->re_in_use = FALSE; |
| 6328 | 2950 |
|
18812
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Bram Moolenaar <Bram@vim.org>
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18576
diff
changeset
|
2951 // NFA engine aborted because it's very slow. |
| 6328 | 2952 if (rmp->regprog->re_engine == AUTOMATIC_ENGINE |
| 2953 && result == NFA_TOO_EXPENSIVE) | |
| 2954 { | |
| 2955 int save_p_re = p_re; | |
| 2956 int re_flags = rmp->regprog->re_flags; | |
| 2957 char_u *pat = vim_strsave(((nfa_regprog_T *)rmp->regprog)->pattern); | |
| 2958 | |
| 2959 p_re = BACKTRACKING_ENGINE; | |
| 2960 if (pat != NULL) | |
| 2961 { | |
|
28323
82f34ca7b3b7
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Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
2962 regprog_T *prev_prog = rmp->regprog; |
|
82f34ca7b3b7
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Bram Moolenaar <Bram@vim.org>
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changeset
|
2963 |
| 6328 | 2964 #ifdef FEAT_EVAL |
| 2965 report_re_switch(pat); | |
| 2966 #endif | |
|
14169
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14161
diff
changeset
|
2967 #ifdef FEAT_SYN_HL |
|
14161
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changeset
|
2968 // checking for \z misuse was already done when compiling for NFA, |
|
7cac4646c552
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changeset
|
2969 // allow all here |
|
7cac4646c552
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13286
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changeset
|
2970 reg_do_extmatch = REX_ALL; |
|
14169
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Christian Brabandt <cb@256bit.org>
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14161
diff
changeset
|
2971 #endif |
| 6328 | 2972 rmp->regprog = vim_regcomp(pat, re_flags); |
|
14169
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14161
diff
changeset
|
2973 #ifdef FEAT_SYN_HL |
|
14161
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changeset
|
2974 reg_do_extmatch = 0; |
|
14169
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14161
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changeset
|
2975 #endif |
|
28323
82f34ca7b3b7
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Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
2976 if (rmp->regprog == NULL) |
|
82f34ca7b3b7
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Bram Moolenaar <Bram@vim.org>
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changeset
|
2977 { |
|
82f34ca7b3b7
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Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
2978 // Somehow compiling the pattern failed now, put back the |
|
82f34ca7b3b7
patch 8.2.4687: "vimgrep /%v/ *" may cause a crash
Bram Moolenaar <Bram@vim.org>
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27752
diff
changeset
|
2979 // previous one to avoid "regprog" becoming NULL. |
|
82f34ca7b3b7
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Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
2980 rmp->regprog = prev_prog; |
|
82f34ca7b3b7
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Bram Moolenaar <Bram@vim.org>
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changeset
|
2981 } |
|
82f34ca7b3b7
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Bram Moolenaar <Bram@vim.org>
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27752
diff
changeset
|
2982 else |
|
82f34ca7b3b7
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Bram Moolenaar <Bram@vim.org>
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changeset
|
2983 { |
|
82f34ca7b3b7
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Bram Moolenaar <Bram@vim.org>
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27752
diff
changeset
|
2984 vim_regfree(prev_prog); |
|
14161
7cac4646c552
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Christian Brabandt <cb@256bit.org>
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changeset
|
2985 |
|
14358
72d506d94f3f
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Christian Brabandt <cb@256bit.org>
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14354
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changeset
|
2986 rmp->regprog->re_in_use = TRUE; |
| 6328 | 2987 result = rmp->regprog->engine->regexec_multi( |
|
29071
b90bca860b5a
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Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
2988 rmp, win, buf, lnum, col, timed_out); |
|
14358
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Christian Brabandt <cb@256bit.org>
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14354
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changeset
|
2989 rmp->regprog->re_in_use = FALSE; |
|
72d506d94f3f
patch 8.1.0194: possibly use of NULL pointer
Christian Brabandt <cb@256bit.org>
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14354
diff
changeset
|
2990 } |
| 6328 | 2991 vim_free(pat); |
| 2992 } | |
| 2993 p_re = save_p_re; | |
| 2994 } | |
| 2995 | |
|
10245
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Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2996 rex_in_use = rex_in_use_save; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2997 if (rex_in_use) |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2998 rex = rex_save; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2999 |
| 6390 | 3000 return result <= 0 ? 0 : result; |
| 4444 | 3001 } |