Mercurial > vim
annotate src/regexp.c @ 30986:360f286b5869 v9.0.0828
patch 9.0.0828: various typos
Commit: https://github.com/vim/vim/commit/c57b5bcd22826e0852c2bc9c7d4382e1cac7cb74
Author: dundargoc <gocdundar@gmail.com>
Date: Wed Nov 2 13:30:51 2022 +0000
patch 9.0.0828: various typos
Problem: Various typos.
Solution: Correct typos. (closes https://github.com/vim/vim/issues/11432)
| author | Bram Moolenaar <Bram@vim.org> |
|---|---|
| date | Wed, 02 Nov 2022 14:45:11 +0100 |
| parents | 37aa9fd2ed72 |
| children | d80066065462 |
| rev | line source |
|---|---|
|
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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 sig_atomic_t dummy_timeout_flag = 0; |
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25 static volatile sig_atomic_t *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 static int timeout_nesting = 0; |
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55 |
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56 /* |
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57 * Start a timer that will cause the regexp to abort after "msec". |
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58 * This doesn't work well recursively. In case it happens anyway, the first |
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59 * set timeout will prevail, nested ones are ignored. |
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60 * The caller must make sure there is a matching disable_regexp_timeout() call! |
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61 */ |
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62 void |
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63 init_regexp_timeout(long msec) |
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64 { |
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65 if (timeout_nesting == 0) |
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66 timeout_flag = start_timeout(msec); |
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67 ++timeout_nesting; |
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68 } |
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69 |
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70 void |
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71 disable_regexp_timeout(void) |
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72 { |
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73 if (timeout_nesting == 0) |
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74 iemsg("disable_regexp_timeout() called without active timer"); |
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75 else if (--timeout_nesting == 0) |
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76 { |
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77 stop_timeout(); |
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78 timeout_flag = &dummy_timeout_flag; |
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79 } |
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80 } |
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81 #endif |
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82 |
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83 #if defined(FEAT_EVAL) || defined(PROTO) |
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84 # ifdef FEAT_RELTIME |
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85 static sig_atomic_t *saved_timeout_flag; |
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86 # endif |
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87 |
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88 /* |
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89 * Used at the debug prompt: disable the timeout so that expression evaluation |
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90 * can used patterns. |
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91 * Must be followed by calling restore_timeout_for_debugging(). |
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92 */ |
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93 void |
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94 save_timeout_for_debugging(void) |
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95 { |
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96 # ifdef FEAT_RELTIME |
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97 saved_timeout_flag = (sig_atomic_t *)timeout_flag; |
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98 timeout_flag = &dummy_timeout_flag; |
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99 # endif |
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100 } |
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101 |
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102 void |
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103 restore_timeout_for_debugging(void) |
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104 { |
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105 # ifdef FEAT_RELTIME |
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106 timeout_flag = saved_timeout_flag; |
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107 # endif |
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108 } |
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109 #endif |
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110 |
| 7 | 111 /* |
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112 * The first byte of the BT regexp internal "program" is actually this magic |
| 7 | 113 * number; the start node begins in the second byte. It's used to catch the |
| 114 * most severe mutilation of the program by the caller. | |
| 115 */ | |
| 116 | |
| 117 #define REGMAGIC 0234 | |
| 118 | |
| 119 /* | |
| 120 * Utility definitions. | |
| 121 */ | |
| 122 #define UCHARAT(p) ((int)*(char_u *)(p)) | |
| 123 | |
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124 // Used for an error (down from) vim_regcomp(): give the error message, set |
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125 // rc_did_emsg and return NULL |
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126 #define EMSG_RET_NULL(m) return (emsg((m)), rc_did_emsg = TRUE, (void *)NULL) |
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127 #define IEMSG_RET_NULL(m) return (iemsg((m)), rc_did_emsg = TRUE, (void *)NULL) |
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128 #define EMSG_RET_FAIL(m) return (emsg((m)), rc_did_emsg = TRUE, FAIL) |
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129 #define EMSG2_RET_NULL(m, c) return (semsg((const char *)(m), (c) ? "" : "\\"), rc_did_emsg = TRUE, (void *)NULL) |
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130 #define EMSG3_RET_NULL(m, c, a) return (semsg((const char *)(m), (c) ? "" : "\\", (a)), rc_did_emsg = TRUE, (void *)NULL) |
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131 #define EMSG2_RET_FAIL(m, c) return (semsg((const char *)(m), (c) ? "" : "\\"), rc_did_emsg = TRUE, FAIL) |
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132 #define EMSG_ONE_RET_NULL EMSG2_RET_NULL(_(e_invalid_item_in_str_brackets), reg_magic == MAGIC_ALL) |
| 7 | 133 |
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134 |
| 7 | 135 #define MAX_LIMIT (32767L << 16L) |
| 136 | |
| 137 #define NOT_MULTI 0 | |
| 138 #define MULTI_ONE 1 | |
| 139 #define MULTI_MULT 2 | |
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140 |
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141 // return values for regmatch() |
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142 #define RA_FAIL 1 // something failed, abort |
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143 #define RA_CONT 2 // continue in inner loop |
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144 #define RA_BREAK 3 // break inner loop |
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145 #define RA_MATCH 4 // successful match |
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146 #define RA_NOMATCH 5 // didn't match |
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147 |
| 7 | 148 /* |
| 149 * Return NOT_MULTI if c is not a "multi" operator. | |
| 150 * Return MULTI_ONE if c is a single "multi" operator. | |
| 151 * Return MULTI_MULT if c is a multi "multi" operator. | |
| 152 */ | |
| 153 static int | |
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154 re_multi_type(int c) |
| 7 | 155 { |
| 156 if (c == Magic('@') || c == Magic('=') || c == Magic('?')) | |
| 157 return MULTI_ONE; | |
| 158 if (c == Magic('*') || c == Magic('+') || c == Magic('{')) | |
| 159 return MULTI_MULT; | |
| 160 return NOT_MULTI; | |
| 161 } | |
| 162 | |
| 359 | 163 static char_u *reg_prev_sub = NULL; |
| 164 | |
| 7 | 165 /* |
| 166 * REGEXP_INRANGE contains all characters which are always special in a [] | |
| 167 * range after '\'. | |
| 168 * REGEXP_ABBR contains all characters which act as abbreviations after '\'. | |
| 169 * These are: | |
| 170 * \n - New line (NL). | |
| 171 * \r - Carriage Return (CR). | |
| 172 * \t - Tab (TAB). | |
| 173 * \e - Escape (ESC). | |
| 174 * \b - Backspace (Ctrl_H). | |
| 24 | 175 * \d - Character code in decimal, eg \d123 |
| 176 * \o - Character code in octal, eg \o80 | |
| 177 * \x - Character code in hex, eg \x4a | |
| 178 * \u - Multibyte character code, eg \u20ac | |
| 179 * \U - Long multibyte character code, eg \U12345678 | |
| 7 | 180 */ |
| 181 static char_u REGEXP_INRANGE[] = "]^-n\\"; | |
| 24 | 182 static char_u REGEXP_ABBR[] = "nrtebdoxuU"; |
| 7 | 183 |
| 184 /* | |
| 185 * Translate '\x' to its control character, except "\n", which is Magic. | |
| 186 */ | |
| 187 static int | |
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188 backslash_trans(int c) |
| 7 | 189 { |
| 190 switch (c) | |
| 191 { | |
| 192 case 'r': return CAR; | |
| 193 case 't': return TAB; | |
| 194 case 'e': return ESC; | |
| 195 case 'b': return BS; | |
| 196 } | |
| 197 return c; | |
| 198 } | |
| 199 | |
| 200 /* | |
| 167 | 201 * Check for a character class name "[:name:]". "pp" points to the '['. |
| 7 | 202 * Returns one of the CLASS_ items. CLASS_NONE means that no item was |
| 203 * recognized. Otherwise "pp" is advanced to after the item. | |
| 204 */ | |
| 205 static int | |
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206 get_char_class(char_u **pp) |
| 7 | 207 { |
| 208 static const char *(class_names[]) = | |
| 209 { | |
| 210 "alnum:]", | |
| 211 #define CLASS_ALNUM 0 | |
| 212 "alpha:]", | |
| 213 #define CLASS_ALPHA 1 | |
| 214 "blank:]", | |
| 215 #define CLASS_BLANK 2 | |
| 216 "cntrl:]", | |
| 217 #define CLASS_CNTRL 3 | |
| 218 "digit:]", | |
| 219 #define CLASS_DIGIT 4 | |
| 220 "graph:]", | |
| 221 #define CLASS_GRAPH 5 | |
| 222 "lower:]", | |
| 223 #define CLASS_LOWER 6 | |
| 224 "print:]", | |
| 225 #define CLASS_PRINT 7 | |
| 226 "punct:]", | |
| 227 #define CLASS_PUNCT 8 | |
| 228 "space:]", | |
| 229 #define CLASS_SPACE 9 | |
| 230 "upper:]", | |
| 231 #define CLASS_UPPER 10 | |
| 232 "xdigit:]", | |
| 233 #define CLASS_XDIGIT 11 | |
| 234 "tab:]", | |
| 235 #define CLASS_TAB 12 | |
| 236 "return:]", | |
| 237 #define CLASS_RETURN 13 | |
| 238 "backspace:]", | |
| 239 #define CLASS_BACKSPACE 14 | |
| 240 "escape:]", | |
| 241 #define CLASS_ESCAPE 15 | |
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242 "ident:]", |
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243 #define CLASS_IDENT 16 |
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244 "keyword:]", |
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245 #define CLASS_KEYWORD 17 |
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246 "fname:]", |
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247 #define CLASS_FNAME 18 |
| 7 | 248 }; |
| 249 #define CLASS_NONE 99 | |
| 250 int i; | |
| 251 | |
| 252 if ((*pp)[1] == ':') | |
| 253 { | |
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254 for (i = 0; i < (int)ARRAY_LENGTH(class_names); ++i) |
| 7 | 255 if (STRNCMP(*pp + 2, class_names[i], STRLEN(class_names[i])) == 0) |
| 256 { | |
| 257 *pp += STRLEN(class_names[i]) + 2; | |
| 258 return i; | |
| 259 } | |
| 260 } | |
| 261 return CLASS_NONE; | |
| 262 } | |
| 263 | |
| 264 /* | |
| 265 * Specific version of character class functions. | |
| 266 * Using a table to keep this fast. | |
| 267 */ | |
| 268 static short class_tab[256]; | |
| 269 | |
| 270 #define RI_DIGIT 0x01 | |
| 271 #define RI_HEX 0x02 | |
| 272 #define RI_OCTAL 0x04 | |
| 273 #define RI_WORD 0x08 | |
| 274 #define RI_HEAD 0x10 | |
| 275 #define RI_ALPHA 0x20 | |
| 276 #define RI_LOWER 0x40 | |
| 277 #define RI_UPPER 0x80 | |
| 278 #define RI_WHITE 0x100 | |
| 279 | |
| 280 static void | |
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281 init_class_tab(void) |
| 7 | 282 { |
| 283 int i; | |
| 284 static int done = FALSE; | |
| 285 | |
| 286 if (done) | |
| 287 return; | |
| 288 | |
| 289 for (i = 0; i < 256; ++i) | |
| 290 { | |
| 291 if (i >= '0' && i <= '7') | |
| 292 class_tab[i] = RI_DIGIT + RI_HEX + RI_OCTAL + RI_WORD; | |
| 293 else if (i >= '8' && i <= '9') | |
| 294 class_tab[i] = RI_DIGIT + RI_HEX + RI_WORD; | |
| 295 else if (i >= 'a' && i <= 'f') | |
| 296 class_tab[i] = RI_HEX + RI_WORD + RI_HEAD + RI_ALPHA + RI_LOWER; | |
| 297 else if (i >= 'g' && i <= 'z') | |
| 298 class_tab[i] = RI_WORD + RI_HEAD + RI_ALPHA + RI_LOWER; | |
| 299 else if (i >= 'A' && i <= 'F') | |
| 300 class_tab[i] = RI_HEX + RI_WORD + RI_HEAD + RI_ALPHA + RI_UPPER; | |
| 301 else if (i >= 'G' && i <= 'Z') | |
| 302 class_tab[i] = RI_WORD + RI_HEAD + RI_ALPHA + RI_UPPER; | |
| 303 else if (i == '_') | |
| 304 class_tab[i] = RI_WORD + RI_HEAD; | |
| 305 else | |
| 306 class_tab[i] = 0; | |
| 307 } | |
| 308 class_tab[' '] |= RI_WHITE; | |
| 309 class_tab['\t'] |= RI_WHITE; | |
| 310 done = TRUE; | |
| 311 } | |
| 312 | |
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313 #define ri_digit(c) ((c) < 0x100 && (class_tab[c] & RI_DIGIT)) |
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314 #define ri_hex(c) ((c) < 0x100 && (class_tab[c] & RI_HEX)) |
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315 #define ri_octal(c) ((c) < 0x100 && (class_tab[c] & RI_OCTAL)) |
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316 #define ri_word(c) ((c) < 0x100 && (class_tab[c] & RI_WORD)) |
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317 #define ri_head(c) ((c) < 0x100 && (class_tab[c] & RI_HEAD)) |
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318 #define ri_alpha(c) ((c) < 0x100 && (class_tab[c] & RI_ALPHA)) |
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319 #define ri_lower(c) ((c) < 0x100 && (class_tab[c] & RI_LOWER)) |
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320 #define ri_upper(c) ((c) < 0x100 && (class_tab[c] & RI_UPPER)) |
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321 #define ri_white(c) ((c) < 0x100 && (class_tab[c] & RI_WHITE)) |
| 7 | 322 |
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323 // flags for regflags |
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324 #define RF_ICASE 1 // ignore case |
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325 #define RF_NOICASE 2 // don't ignore case |
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326 #define RF_HASNL 4 // can match a NL |
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327 #define RF_ICOMBINE 8 // ignore combining characters |
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328 #define RF_LOOKBH 16 // uses "\@<=" or "\@<!" |
| 7 | 329 |
| 330 /* | |
| 331 * Global work variables for vim_regcomp(). | |
| 332 */ | |
| 333 | |
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334 static char_u *regparse; // Input-scan pointer. |
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335 static int regnpar; // () count. |
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336 static int wants_nfa; // regex should use NFA engine |
| 7 | 337 #ifdef FEAT_SYN_HL |
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338 static int regnzpar; // \z() count. |
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339 static int re_has_z; // \z item detected |
| 7 | 340 #endif |
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341 static unsigned regflags; // RF_ flags for prog |
| 7 | 342 #if defined(FEAT_SYN_HL) || defined(PROTO) |
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343 static int had_eol; // TRUE when EOL found by vim_regcomp() |
| 7 | 344 #endif |
| 345 | |
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346 static magic_T reg_magic; // magicness of the pattern |
| 7 | 347 |
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348 static int reg_string; // matching with a string instead of a buffer |
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349 // line |
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350 static int reg_strict; // "[abc" is illegal |
| 7 | 351 |
| 352 /* | |
| 353 * META contains all characters that may be magic, except '^' and '$'. | |
| 354 */ | |
| 355 | |
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356 // META[] is used often enough to justify turning it into a table. |
| 7 | 357 static char_u META_flags[] = { |
| 358 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
| 359 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
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360 // % & ( ) * + . |
| 7 | 361 0, 0, 0, 0, 0, 1, 1, 0, 1, 1, 1, 1, 0, 0, 1, 0, |
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362 // 1 2 3 4 5 6 7 8 9 < = > ? |
| 7 | 363 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 1, 1, |
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364 // @ A C D F H I K L M O |
| 7 | 365 1, 1, 0, 1, 1, 0, 1, 0, 1, 1, 0, 1, 1, 1, 0, 1, |
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366 // P S U V W X Z [ _ |
| 7 | 367 1, 0, 0, 1, 0, 1, 1, 1, 1, 0, 1, 1, 0, 0, 0, 1, |
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368 // a c d f h i k l m n o |
| 7 | 369 0, 1, 0, 1, 1, 0, 1, 0, 1, 1, 0, 1, 1, 1, 1, 1, |
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370 // p s u v w x z { | ~ |
| 7 | 371 1, 0, 0, 1, 0, 1, 1, 1, 1, 0, 1, 1, 1, 0, 1 |
| 372 }; | |
| 373 | |
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374 static int curchr; // currently parsed character |
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375 // Previous character. Note: prevchr is sometimes -1 when we are not at the |
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376 // start, eg in /[ ^I]^ the pattern was never found even if it existed, |
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377 // because ^ was taken to be magic -- webb |
| 4444 | 378 static int prevchr; |
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379 static int prevprevchr; // previous-previous character |
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380 static int nextchr; // used for ungetchr() |
| 7 | 381 |
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382 // arguments for reg() |
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383 #define REG_NOPAREN 0 // toplevel reg() |
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384 #define REG_PAREN 1 // \(\) |
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385 #define REG_ZPAREN 2 // \z(\) |
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386 #define REG_NPAREN 3 // \%(\) |
| 7 | 387 |
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388 typedef struct |
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389 { |
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390 char_u *regparse; |
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391 int prevchr_len; |
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392 int curchr; |
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393 int prevchr; |
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394 int prevprevchr; |
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395 int nextchr; |
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396 int at_start; |
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397 int prev_at_start; |
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398 int regnpar; |
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399 } parse_state_T; |
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400 |
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401 static void initchr(char_u *); |
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402 static int getchr(void); |
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403 static void skipchr_keepstart(void); |
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404 static int peekchr(void); |
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405 static void skipchr(void); |
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406 static void ungetchr(void); |
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407 static long gethexchrs(int maxinputlen); |
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408 static long getoctchrs(void); |
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409 static long getdecchrs(void); |
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410 static int coll_get_char(void); |
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411 static int prog_magic_wrong(void); |
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412 static int cstrncmp(char_u *s1, char_u *s2, int *n); |
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413 static char_u *cstrchr(char_u *, int); |
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414 static int re_mult_next(char *what); |
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415 static int reg_iswordc(int); |
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416 #ifdef FEAT_EVAL |
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417 static void report_re_switch(char_u *pat); |
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418 #endif |
| 7 | 419 |
| 4444 | 420 static regengine_T bt_regengine; |
| 421 static regengine_T nfa_regengine; | |
| 422 | |
| 7 | 423 /* |
| 424 * Return TRUE if compiled regular expression "prog" can match a line break. | |
| 425 */ | |
| 426 int | |
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427 re_multiline(regprog_T *prog) |
| 7 | 428 { |
| 429 return (prog->regflags & RF_HASNL); | |
| 430 } | |
| 431 | |
| 432 /* | |
| 167 | 433 * Check for an equivalence class name "[=a=]". "pp" points to the '['. |
| 434 * Returns a character representing the class. Zero means that no item was | |
| 435 * recognized. Otherwise "pp" is advanced to after the item. | |
| 436 */ | |
| 437 static int | |
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438 get_equi_class(char_u **pp) |
| 167 | 439 { |
| 440 int c; | |
| 441 int l = 1; | |
| 442 char_u *p = *pp; | |
| 443 | |
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444 if (p[1] == '=' && p[2] != NUL) |
| 167 | 445 { |
| 446 if (has_mbyte) | |
| 474 | 447 l = (*mb_ptr2len)(p + 2); |
| 167 | 448 if (p[l + 2] == '=' && p[l + 3] == ']') |
| 449 { | |
| 450 if (has_mbyte) | |
| 451 c = mb_ptr2char(p + 2); | |
| 452 else | |
| 453 c = p[2]; | |
| 454 *pp += l + 4; | |
| 455 return c; | |
| 456 } | |
| 457 } | |
| 458 return 0; | |
| 459 } | |
| 460 | |
| 461 /* | |
| 462 * Check for a collating element "[.a.]". "pp" points to the '['. | |
| 463 * Returns a character. Zero means that no item was recognized. Otherwise | |
| 464 * "pp" is advanced to after the item. | |
| 465 * Currently only single characters are recognized! | |
| 466 */ | |
| 467 static int | |
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468 get_coll_element(char_u **pp) |
| 167 | 469 { |
| 470 int c; | |
| 471 int l = 1; | |
| 472 char_u *p = *pp; | |
| 473 | |
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474 if (p[0] != NUL && p[1] == '.' && p[2] != NUL) |
| 167 | 475 { |
| 476 if (has_mbyte) | |
| 474 | 477 l = (*mb_ptr2len)(p + 2); |
| 167 | 478 if (p[l + 2] == '.' && p[l + 3] == ']') |
| 479 { | |
| 480 if (has_mbyte) | |
| 481 c = mb_ptr2char(p + 2); | |
| 482 else | |
| 483 c = p[2]; | |
| 484 *pp += l + 4; | |
| 485 return c; | |
| 486 } | |
| 487 } | |
| 488 return 0; | |
| 489 } | |
| 490 | |
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491 static int reg_cpo_lit; // 'cpoptions' contains 'l' flag |
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492 static int reg_cpo_bsl; // 'cpoptions' contains '\' flag |
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493 |
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494 static void |
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495 get_cpo_flags(void) |
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496 { |
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497 reg_cpo_lit = vim_strchr(p_cpo, CPO_LITERAL) != NULL; |
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498 reg_cpo_bsl = vim_strchr(p_cpo, CPO_BACKSL) != NULL; |
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499 } |
| 167 | 500 |
| 501 /* | |
| 502 * Skip over a "[]" range. | |
| 503 * "p" must point to the character after the '['. | |
| 504 * The returned pointer is on the matching ']', or the terminating NUL. | |
| 505 */ | |
| 506 static char_u * | |
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507 skip_anyof(char_u *p) |
| 167 | 508 { |
| 509 int l; | |
| 510 | |
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511 if (*p == '^') // Complement of range. |
| 167 | 512 ++p; |
| 513 if (*p == ']' || *p == '-') | |
| 514 ++p; | |
| 515 while (*p != NUL && *p != ']') | |
| 516 { | |
| 474 | 517 if (has_mbyte && (l = (*mb_ptr2len)(p)) > 1) |
| 167 | 518 p += l; |
| 519 else | |
| 520 if (*p == '-') | |
| 521 { | |
| 522 ++p; | |
| 523 if (*p != ']' && *p != NUL) | |
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524 MB_PTR_ADV(p); |
| 167 | 525 } |
| 526 else if (*p == '\\' | |
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527 && !reg_cpo_bsl |
| 167 | 528 && (vim_strchr(REGEXP_INRANGE, p[1]) != NULL |
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529 || (!reg_cpo_lit && vim_strchr(REGEXP_ABBR, p[1]) != NULL))) |
| 167 | 530 p += 2; |
| 531 else if (*p == '[') | |
| 532 { | |
| 533 if (get_char_class(&p) == CLASS_NONE | |
| 534 && get_equi_class(&p) == 0 | |
| 6830 | 535 && get_coll_element(&p) == 0 |
| 536 && *p != NUL) | |
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537 ++p; // it is not a class name and not NUL |
| 167 | 538 } |
| 539 else | |
| 540 ++p; | |
| 541 } | |
| 542 | |
| 543 return p; | |
| 544 } | |
| 545 | |
| 546 /* | |
| 7 | 547 * Skip past regular expression. |
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548 * Stop at end of "startp" or where "delim" is found ('/', '?', etc). |
| 7 | 549 * Take care of characters with a backslash in front of it. |
| 550 * Skip strings inside [ and ]. | |
| 551 */ | |
| 552 char_u * | |
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553 skip_regexp( |
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554 char_u *startp, |
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555 int delim, |
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556 int magic) |
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557 { |
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558 return skip_regexp_ex(startp, delim, magic, NULL, NULL, NULL); |
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559 } |
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560 |
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561 /* |
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562 * Call skip_regexp() and when the delimiter does not match give an error and |
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563 * return NULL. |
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564 */ |
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565 char_u * |
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566 skip_regexp_err( |
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567 char_u *startp, |
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568 int delim, |
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569 int magic) |
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570 { |
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571 char_u *p = skip_regexp(startp, delim, magic); |
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572 |
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573 if (*p != delim) |
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574 { |
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575 semsg(_(e_missing_delimiter_after_search_pattern_str), startp); |
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576 return NULL; |
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577 } |
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578 return p; |
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579 } |
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580 |
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581 /* |
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582 * skip_regexp() with extra arguments: |
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583 * When "newp" is not NULL and "dirc" is '?', make an allocated copy of the |
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584 * expression and change "\?" to "?". If "*newp" is not NULL the expression |
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585 * is changed in-place. |
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586 * If a "\?" is changed to "?" then "dropped" is incremented, unless NULL. |
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587 * If "magic_val" is not NULL, returns the effective magicness of the pattern |
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588 */ |
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589 char_u * |
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590 skip_regexp_ex( |
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591 char_u *startp, |
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592 int dirc, |
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593 int magic, |
|
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594 char_u **newp, |
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595 int *dropped, |
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596 magic_T *magic_val) |
| 7 | 597 { |
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598 magic_T mymagic; |
| 7 | 599 char_u *p = startp; |
| 600 | |
| 601 if (magic) | |
| 602 mymagic = MAGIC_ON; | |
| 603 else | |
| 604 mymagic = MAGIC_OFF; | |
|
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605 get_cpo_flags(); |
| 7 | 606 |
|
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607 for (; p[0] != NUL; MB_PTR_ADV(p)) |
| 7 | 608 { |
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609 if (p[0] == dirc) // found end of regexp |
| 7 | 610 break; |
| 611 if ((p[0] == '[' && mymagic >= MAGIC_ON) | |
| 612 || (p[0] == '\\' && p[1] == '[' && mymagic <= MAGIC_OFF)) | |
| 613 { | |
| 614 p = skip_anyof(p + 1); | |
| 615 if (p[0] == NUL) | |
| 616 break; | |
| 617 } | |
| 618 else if (p[0] == '\\' && p[1] != NUL) | |
| 619 { | |
| 620 if (dirc == '?' && newp != NULL && p[1] == '?') | |
| 621 { | |
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622 // change "\?" to "?", make a copy first. |
| 7 | 623 if (*newp == NULL) |
| 624 { | |
| 625 *newp = vim_strsave(startp); | |
| 626 if (*newp != NULL) | |
| 627 p = *newp + (p - startp); | |
| 628 } | |
|
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629 if (dropped != NULL) |
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630 ++*dropped; |
| 7 | 631 if (*newp != NULL) |
| 1621 | 632 STRMOVE(p, p + 1); |
| 7 | 633 else |
| 634 ++p; | |
| 635 } | |
| 636 else | |
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637 ++p; // skip next character |
| 7 | 638 if (*p == 'v') |
| 639 mymagic = MAGIC_ALL; | |
| 640 else if (*p == 'V') | |
| 641 mymagic = MAGIC_NONE; | |
| 642 } | |
| 643 } | |
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644 if (magic_val != NULL) |
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645 *magic_val = mymagic; |
| 7 | 646 return p; |
| 647 } | |
| 648 | |
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649 /* |
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650 * Functions for getting characters from the regexp input. |
| 7 | 651 */ |
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652 static int prevchr_len; // byte length of previous char |
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653 static int at_start; // True when on the first character |
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654 static int prev_at_start; // True when on the second character |
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655 |
| 7 | 656 /* |
| 4444 | 657 * Start parsing at "str". |
| 658 */ | |
| 7 | 659 static void |
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660 initchr(char_u *str) |
| 7 | 661 { |
| 662 regparse = str; | |
| 663 prevchr_len = 0; | |
| 664 curchr = prevprevchr = prevchr = nextchr = -1; | |
| 665 at_start = TRUE; | |
| 666 prev_at_start = FALSE; | |
| 667 } | |
| 668 | |
| 4444 | 669 /* |
|
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670 * Save the current parse state, so that it can be restored and parsing |
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671 * starts in the same state again. |
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672 */ |
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673 static void |
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674 save_parse_state(parse_state_T *ps) |
|
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675 { |
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676 ps->regparse = regparse; |
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677 ps->prevchr_len = prevchr_len; |
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678 ps->curchr = curchr; |
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679 ps->prevchr = prevchr; |
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680 ps->prevprevchr = prevprevchr; |
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681 ps->nextchr = nextchr; |
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682 ps->at_start = at_start; |
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683 ps->prev_at_start = prev_at_start; |
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684 ps->regnpar = regnpar; |
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685 } |
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686 |
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687 /* |
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688 * Restore a previously saved parse state. |
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689 */ |
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690 static void |
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691 restore_parse_state(parse_state_T *ps) |
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692 { |
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693 regparse = ps->regparse; |
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694 prevchr_len = ps->prevchr_len; |
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695 curchr = ps->curchr; |
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696 prevchr = ps->prevchr; |
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697 prevprevchr = ps->prevprevchr; |
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698 nextchr = ps->nextchr; |
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699 at_start = ps->at_start; |
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700 prev_at_start = ps->prev_at_start; |
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701 regnpar = ps->regnpar; |
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702 } |
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703 |
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704 |
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705 /* |
| 4444 | 706 * Get the next character without advancing. |
| 707 */ | |
| 7 | 708 static int |
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709 peekchr(void) |
| 7 | 710 { |
| 167 | 711 static int after_slash = FALSE; |
| 712 | |
| 7 | 713 if (curchr == -1) |
| 714 { | |
| 715 switch (curchr = regparse[0]) | |
| 716 { | |
| 717 case '.': | |
| 718 case '[': | |
| 719 case '~': | |
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720 // magic when 'magic' is on |
| 7 | 721 if (reg_magic >= MAGIC_ON) |
| 722 curchr = Magic(curchr); | |
| 723 break; | |
| 724 case '(': | |
| 725 case ')': | |
| 726 case '{': | |
| 727 case '%': | |
| 728 case '+': | |
| 729 case '=': | |
| 730 case '?': | |
| 731 case '@': | |
| 732 case '!': | |
| 733 case '&': | |
| 734 case '|': | |
| 735 case '<': | |
| 736 case '>': | |
|
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737 case '#': // future ext. |
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738 case '"': // future ext. |
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739 case '\'': // future ext. |
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740 case ',': // future ext. |
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741 case '-': // future ext. |
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742 case ':': // future ext. |
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743 case ';': // future ext. |
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744 case '`': // future ext. |
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745 case '/': // Can't be used in / command |
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746 // magic only after "\v" |
| 7 | 747 if (reg_magic == MAGIC_ALL) |
| 748 curchr = Magic(curchr); | |
| 749 break; | |
| 750 case '*': | |
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751 // * is not magic as the very first character, eg "?*ptr", when |
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752 // after '^', eg "/^*ptr" and when after "\(", "\|", "\&". But |
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753 // "\(\*" is not magic, thus must be magic if "after_slash" |
| 167 | 754 if (reg_magic >= MAGIC_ON |
| 755 && !at_start | |
| 756 && !(prev_at_start && prevchr == Magic('^')) | |
| 757 && (after_slash | |
| 758 || (prevchr != Magic('(') | |
| 759 && prevchr != Magic('&') | |
| 760 && prevchr != Magic('|')))) | |
| 7 | 761 curchr = Magic('*'); |
| 762 break; | |
| 763 case '^': | |
|
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764 // '^' is only magic as the very first character and if it's after |
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765 // "\(", "\|", "\&' or "\n" |
| 7 | 766 if (reg_magic >= MAGIC_OFF |
| 767 && (at_start | |
| 768 || reg_magic == MAGIC_ALL | |
| 769 || prevchr == Magic('(') | |
| 770 || prevchr == Magic('|') | |
| 771 || prevchr == Magic('&') | |
| 772 || prevchr == Magic('n') | |
| 773 || (no_Magic(prevchr) == '(' | |
| 774 && prevprevchr == Magic('%')))) | |
| 775 { | |
| 776 curchr = Magic('^'); | |
| 777 at_start = TRUE; | |
| 778 prev_at_start = FALSE; | |
| 779 } | |
| 780 break; | |
| 781 case '$': | |
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782 // '$' is only magic as the very last char and if it's in front of |
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783 // either "\|", "\)", "\&", or "\n" |
| 7 | 784 if (reg_magic >= MAGIC_OFF) |
| 785 { | |
| 786 char_u *p = regparse + 1; | |
| 6041 | 787 int is_magic_all = (reg_magic == MAGIC_ALL); |
| 788 | |
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789 // ignore \c \C \m \M \v \V and \Z after '$' |
| 7 | 790 while (p[0] == '\\' && (p[1] == 'c' || p[1] == 'C' |
| 6041 | 791 || p[1] == 'm' || p[1] == 'M' |
| 792 || p[1] == 'v' || p[1] == 'V' || p[1] == 'Z')) | |
| 793 { | |
| 794 if (p[1] == 'v') | |
| 795 is_magic_all = TRUE; | |
| 796 else if (p[1] == 'm' || p[1] == 'M' || p[1] == 'V') | |
| 797 is_magic_all = FALSE; | |
| 7 | 798 p += 2; |
| 6041 | 799 } |
| 7 | 800 if (p[0] == NUL |
| 801 || (p[0] == '\\' | |
| 802 && (p[1] == '|' || p[1] == '&' || p[1] == ')' | |
| 803 || p[1] == 'n')) | |
| 6041 | 804 || (is_magic_all |
| 805 && (p[0] == '|' || p[0] == '&' || p[0] == ')')) | |
| 7 | 806 || reg_magic == MAGIC_ALL) |
| 807 curchr = Magic('$'); | |
| 808 } | |
| 809 break; | |
| 810 case '\\': | |
| 811 { | |
| 812 int c = regparse[1]; | |
| 813 | |
| 814 if (c == NUL) | |
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815 curchr = '\\'; // trailing '\' |
|
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816 else if (c <= '~' && META_flags[c]) |
| 7 | 817 { |
| 818 /* | |
| 819 * META contains everything that may be magic sometimes, | |
| 820 * except ^ and $ ("\^" and "\$" are only magic after | |
| 6830 | 821 * "\V"). We now fetch the next character and toggle its |
| 7 | 822 * magicness. Therefore, \ is so meta-magic that it is |
| 823 * not in META. | |
| 824 */ | |
| 825 curchr = -1; | |
| 826 prev_at_start = at_start; | |
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827 at_start = FALSE; // be able to say "/\*ptr" |
| 7 | 828 ++regparse; |
| 167 | 829 ++after_slash; |
| 7 | 830 peekchr(); |
| 831 --regparse; | |
| 167 | 832 --after_slash; |
| 7 | 833 curchr = toggle_Magic(curchr); |
| 834 } | |
| 835 else if (vim_strchr(REGEXP_ABBR, c)) | |
| 836 { | |
| 837 /* | |
| 838 * Handle abbreviations, like "\t" for TAB -- webb | |
| 839 */ | |
| 840 curchr = backslash_trans(c); | |
| 841 } | |
| 842 else if (reg_magic == MAGIC_NONE && (c == '$' || c == '^')) | |
| 843 curchr = toggle_Magic(c); | |
| 844 else | |
| 845 { | |
| 846 /* | |
| 847 * Next character can never be (made) magic? | |
| 848 * Then backslashing it won't do anything. | |
| 849 */ | |
| 850 if (has_mbyte) | |
| 851 curchr = (*mb_ptr2char)(regparse + 1); | |
| 852 else | |
| 853 curchr = c; | |
| 854 } | |
| 855 break; | |
| 856 } | |
| 857 | |
| 858 default: | |
| 859 if (has_mbyte) | |
| 860 curchr = (*mb_ptr2char)(regparse); | |
| 861 } | |
| 862 } | |
| 863 | |
| 864 return curchr; | |
| 865 } | |
| 866 | |
| 867 /* | |
| 868 * Eat one lexed character. Do this in a way that we can undo it. | |
| 869 */ | |
| 870 static void | |
|
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871 skipchr(void) |
| 7 | 872 { |
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873 // peekchr() eats a backslash, do the same here |
| 7 | 874 if (*regparse == '\\') |
| 875 prevchr_len = 1; | |
| 876 else | |
| 877 prevchr_len = 0; | |
| 878 if (regparse[prevchr_len] != NUL) | |
| 879 { | |
| 714 | 880 if (enc_utf8) |
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881 // exclude composing chars that mb_ptr2len does include |
| 1449 | 882 prevchr_len += utf_ptr2len(regparse + prevchr_len); |
| 714 | 883 else if (has_mbyte) |
| 474 | 884 prevchr_len += (*mb_ptr2len)(regparse + prevchr_len); |
| 7 | 885 else |
| 886 ++prevchr_len; | |
| 887 } | |
| 888 regparse += prevchr_len; | |
| 889 prev_at_start = at_start; | |
| 890 at_start = FALSE; | |
| 891 prevprevchr = prevchr; | |
| 892 prevchr = curchr; | |
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893 curchr = nextchr; // use previously unget char, or -1 |
| 7 | 894 nextchr = -1; |
| 895 } | |
| 896 | |
| 897 /* | |
| 898 * Skip a character while keeping the value of prev_at_start for at_start. | |
| 899 * prevchr and prevprevchr are also kept. | |
| 900 */ | |
| 901 static void | |
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902 skipchr_keepstart(void) |
| 7 | 903 { |
| 904 int as = prev_at_start; | |
| 905 int pr = prevchr; | |
| 906 int prpr = prevprevchr; | |
| 907 | |
| 908 skipchr(); | |
| 909 at_start = as; | |
| 910 prevchr = pr; | |
| 911 prevprevchr = prpr; | |
| 912 } | |
| 913 | |
| 4444 | 914 /* |
| 915 * Get the next character from the pattern. We know about magic and such, so | |
| 916 * therefore we need a lexical analyzer. | |
| 917 */ | |
| 7 | 918 static int |
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919 getchr(void) |
| 7 | 920 { |
| 921 int chr = peekchr(); | |
| 922 | |
| 923 skipchr(); | |
| 924 return chr; | |
| 925 } | |
| 926 | |
| 927 /* | |
| 928 * put character back. Works only once! | |
| 929 */ | |
| 930 static void | |
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931 ungetchr(void) |
| 7 | 932 { |
| 933 nextchr = curchr; | |
| 934 curchr = prevchr; | |
| 935 prevchr = prevprevchr; | |
| 936 at_start = prev_at_start; | |
| 937 prev_at_start = FALSE; | |
| 938 | |
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939 // Backup regparse, so that it's at the same position as before the |
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940 // getchr(). |
| 7 | 941 regparse -= prevchr_len; |
| 942 } | |
| 943 | |
| 944 /* | |
| 29 | 945 * Get and return the value of the hex string at the current position. |
| 946 * Return -1 if there is no valid hex number. | |
| 947 * The position is updated: | |
| 24 | 948 * blahblah\%x20asdf |
| 856 | 949 * before-^ ^-after |
| 24 | 950 * The parameter controls the maximum number of input characters. This will be |
| 951 * 2 when reading a \%x20 sequence and 4 when reading a \%u20AC sequence. | |
| 952 */ | |
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953 static long |
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954 gethexchrs(int maxinputlen) |
| 24 | 955 { |
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956 long_u nr = 0; |
| 24 | 957 int c; |
| 958 int i; | |
| 959 | |
| 960 for (i = 0; i < maxinputlen; ++i) | |
| 961 { | |
| 962 c = regparse[0]; | |
| 963 if (!vim_isxdigit(c)) | |
| 964 break; | |
| 965 nr <<= 4; | |
| 966 nr |= hex2nr(c); | |
| 967 ++regparse; | |
| 968 } | |
| 969 | |
| 970 if (i == 0) | |
| 971 return -1; | |
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972 return (long)nr; |
| 24 | 973 } |
| 974 | |
| 975 /* | |
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976 * Get and return the value of the decimal string immediately after the |
| 24 | 977 * current position. Return -1 for invalid. Consumes all digits. |
| 978 */ | |
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979 static long |
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980 getdecchrs(void) |
| 24 | 981 { |
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982 long_u nr = 0; |
| 24 | 983 int c; |
| 984 int i; | |
| 985 | |
| 986 for (i = 0; ; ++i) | |
| 987 { | |
| 988 c = regparse[0]; | |
| 989 if (c < '0' || c > '9') | |
| 990 break; | |
| 991 nr *= 10; | |
| 992 nr += c - '0'; | |
| 993 ++regparse; | |
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994 curchr = -1; // no longer valid |
| 24 | 995 } |
| 996 | |
| 997 if (i == 0) | |
| 998 return -1; | |
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999 return (long)nr; |
| 24 | 1000 } |
| 1001 | |
| 1002 /* | |
| 1003 * get and return the value of the octal string immediately after the current | |
| 1004 * position. Return -1 for invalid, or 0-255 for valid. Smart enough to handle | |
| 1005 * numbers > 377 correctly (for example, 400 is treated as 40) and doesn't | |
| 1006 * treat 8 or 9 as recognised characters. Position is updated: | |
| 1007 * blahblah\%o210asdf | |
| 856 | 1008 * before-^ ^-after |
| 24 | 1009 */ |
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1010 static long |
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1011 getoctchrs(void) |
| 24 | 1012 { |
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1013 long_u nr = 0; |
| 24 | 1014 int c; |
| 1015 int i; | |
| 1016 | |
| 1017 for (i = 0; i < 3 && nr < 040; ++i) | |
| 1018 { | |
| 1019 c = regparse[0]; | |
| 1020 if (c < '0' || c > '7') | |
| 1021 break; | |
| 1022 nr <<= 3; | |
| 1023 nr |= hex2nr(c); | |
| 1024 ++regparse; | |
| 1025 } | |
| 1026 | |
| 1027 if (i == 0) | |
| 1028 return -1; | |
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1029 return (long)nr; |
| 24 | 1030 } |
| 1031 | |
| 1032 /* | |
| 7 | 1033 * read_limits - Read two integers to be taken as a minimum and maximum. |
| 1034 * If the first character is '-', then the range is reversed. | |
| 1035 * Should end with 'end'. If minval is missing, zero is default, if maxval is | |
| 1036 * missing, a very big number is the default. | |
| 1037 */ | |
| 1038 static int | |
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1039 read_limits(long *minval, long *maxval) |
| 7 | 1040 { |
| 1041 int reverse = FALSE; | |
| 1042 char_u *first_char; | |
| 1043 long tmp; | |
| 1044 | |
| 1045 if (*regparse == '-') | |
| 1046 { | |
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1047 // Starts with '-', so reverse the range later |
| 7 | 1048 regparse++; |
| 1049 reverse = TRUE; | |
| 1050 } | |
| 1051 first_char = regparse; | |
| 1052 *minval = getdigits(®parse); | |
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1053 if (*regparse == ',') // There is a comma |
| 7 | 1054 { |
| 1055 if (vim_isdigit(*++regparse)) | |
| 1056 *maxval = getdigits(®parse); | |
| 1057 else | |
| 1058 *maxval = MAX_LIMIT; | |
| 1059 } | |
| 1060 else if (VIM_ISDIGIT(*first_char)) | |
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1061 *maxval = *minval; // It was \{n} or \{-n} |
| 7 | 1062 else |
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1063 *maxval = MAX_LIMIT; // It was \{} or \{-} |
| 7 | 1064 if (*regparse == '\\') |
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1065 regparse++; // Allow either \{...} or \{...\} |
| 167 | 1066 if (*regparse != '}') |
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1067 EMSG2_RET_FAIL(_(e_syntax_error_in_str_curlies), |
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1068 reg_magic == MAGIC_ALL); |
| 7 | 1069 |
| 1070 /* | |
| 1071 * Reverse the range if there was a '-', or make sure it is in the right | |
| 1072 * order otherwise. | |
| 1073 */ | |
| 1074 if ((!reverse && *minval > *maxval) || (reverse && *minval < *maxval)) | |
| 1075 { | |
| 1076 tmp = *minval; | |
| 1077 *minval = *maxval; | |
| 1078 *maxval = tmp; | |
| 1079 } | |
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1080 skipchr(); // let's be friends with the lexer again |
| 7 | 1081 return OK; |
| 1082 } | |
| 1083 | |
| 1084 /* | |
| 1085 * vim_regexec and friends | |
| 1086 */ | |
| 1087 | |
| 1088 /* | |
| 1089 * Global work variables for vim_regexec(). | |
| 1090 */ | |
| 1091 | |
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1092 static void cleanup_subexpr(void); |
| 7 | 1093 #ifdef FEAT_SYN_HL |
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1094 static void cleanup_zsubexpr(void); |
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1095 #endif |
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1096 static void reg_nextline(void); |
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1097 static int match_with_backref(linenr_T start_lnum, colnr_T start_col, linenr_T end_lnum, colnr_T end_col, int *bytelen); |
| 7 | 1098 |
| 1099 /* | |
| 1100 * Sometimes need to save a copy of a line. Since alloc()/free() is very | |
| 1101 * slow, we keep one allocated piece of memory and only re-allocate it when | |
| 4444 | 1102 * it's too small. It's freed in bt_regexec_both() when finished. |
| 7 | 1103 */ |
| 1468 | 1104 static char_u *reg_tofree = NULL; |
| 7 | 1105 static unsigned reg_tofreelen; |
| 1106 | |
| 1107 /* | |
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1108 * Structure used to store the execution state of the regex engine. |
| 1209 | 1109 * Which ones are set depends on whether a single-line or multi-line match is |
| 7 | 1110 * done: |
| 1111 * single-line multi-line | |
| 1112 * reg_match ®match_T NULL | |
| 1113 * reg_mmatch NULL ®mmatch_T | |
| 1114 * reg_startp reg_match->startp <invalid> | |
| 1115 * reg_endp reg_match->endp <invalid> | |
| 1116 * reg_startpos <invalid> reg_mmatch->startpos | |
| 1117 * reg_endpos <invalid> reg_mmatch->endpos | |
| 1118 * reg_win NULL window in which to search | |
| 4061 | 1119 * reg_buf curbuf buffer in which to search |
| 7 | 1120 * reg_firstlnum <invalid> first line in which to search |
| 1121 * reg_maxline 0 last line nr | |
| 1122 * reg_line_lbr FALSE or TRUE FALSE | |
| 1123 */ | |
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1124 typedef struct { |
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1125 regmatch_T *reg_match; |
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1126 regmmatch_T *reg_mmatch; |
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1127 char_u **reg_startp; |
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1128 char_u **reg_endp; |
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1129 lpos_T *reg_startpos; |
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1130 lpos_T *reg_endpos; |
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1131 win_T *reg_win; |
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1132 buf_T *reg_buf; |
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1133 linenr_T reg_firstlnum; |
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1134 linenr_T reg_maxline; |
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1135 int reg_line_lbr; // "\n" in string is line break |
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1136 |
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1137 // The current match-position is stord in these variables: |
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1138 linenr_T lnum; // line number, relative to first line |
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1139 char_u *line; // start of current line |
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1140 char_u *input; // current input, points into "line" |
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1141 |
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1142 int need_clear_subexpr; // subexpressions still need to be cleared |
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1143 #ifdef FEAT_SYN_HL |
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1144 int need_clear_zsubexpr; // extmatch subexpressions still need to be |
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1145 // cleared |
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1146 #endif |
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1147 |
|
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1148 // Internal copy of 'ignorecase'. It is set at each call to vim_regexec(). |
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1149 // Normally it gets the value of "rm_ic" or "rmm_ic", but when the pattern |
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1150 // contains '\c' or '\C' the value is overruled. |
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1151 int reg_ic; |
|
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1152 |
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1153 // Similar to "reg_ic", but only for 'combining' characters. Set with \Z |
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1154 // flag in the regexp. Defaults to false, always. |
|
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|
1155 int reg_icombine; |
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1156 |
|
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1157 // Copy of "rmm_maxcol": maximum column to search for a match. Zero when |
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1158 // there is no maximum. |
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|
1159 colnr_T reg_maxcol; |
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1160 |
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1161 // State for the NFA engine regexec. |
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1162 int nfa_has_zend; // NFA regexp \ze operator encountered. |
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1163 int nfa_has_backref; // NFA regexp \1 .. \9 encountered. |
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1164 int nfa_nsubexpr; // Number of sub expressions actually being used |
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1165 // during execution. 1 if only the whole match |
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1166 // (subexpr 0) is used. |
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1167 // listid is global, so that it increases on recursive calls to |
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1168 // nfa_regmatch(), which means we don't have to clear the lastlist field of |
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1169 // all the states. |
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|
1170 int nfa_listid; |
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|
1171 int nfa_alt_listid; |
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1172 |
|
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|
1173 #ifdef FEAT_SYN_HL |
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1174 int nfa_has_zsubexpr; // NFA regexp has \z( ), set zsubexpr. |
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1175 #endif |
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1176 } regexec_T; |
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1177 |
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1178 static regexec_T rex; |
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1179 static int rex_in_use = FALSE; |
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1180 |
| 7 | 1181 /* |
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1182 * Return TRUE if character 'c' is included in 'iskeyword' option for |
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1183 * "reg_buf" buffer. |
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1184 */ |
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1185 static int |
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1186 reg_iswordc(int c) |
|
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1187 { |
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1188 return vim_iswordc_buf(c, rex.reg_buf); |
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1189 } |
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1190 |
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1191 /* |
| 7 | 1192 * Get pointer to the line "lnum", which is relative to "reg_firstlnum". |
| 1193 */ | |
| 1194 static char_u * | |
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1195 reg_getline(linenr_T lnum) |
| 7 | 1196 { |
|
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1197 // when looking behind for a match/no-match lnum is negative. But we |
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1198 // can't go before line 1 |
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1199 if (rex.reg_firstlnum + lnum < 1) |
| 7 | 1200 return NULL; |
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1201 if (lnum > rex.reg_maxline) |
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1202 // Must have matched the "\n" in the last line. |
| 481 | 1203 return (char_u *)""; |
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1204 return ml_get_buf(rex.reg_buf, rex.reg_firstlnum + lnum, FALSE); |
| 7 | 1205 } |
| 1206 | |
| 1207 #ifdef FEAT_SYN_HL | |
|
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1208 static char_u *reg_startzp[NSUBEXP]; // Workspace to mark beginning |
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1209 static char_u *reg_endzp[NSUBEXP]; // and end of \z(...\) matches |
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1210 static lpos_T reg_startzpos[NSUBEXP]; // idem, beginning pos |
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|
1211 static lpos_T reg_endzpos[NSUBEXP]; // idem, end pos |
| 7 | 1212 #endif |
| 1213 | |
|
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|
1214 // TRUE if using multi-line regexp. |
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|
1215 #define REG_MULTI (rex.reg_match == NULL) |
| 4444 | 1216 |
| 7 | 1217 #ifdef FEAT_SYN_HL |
| 1218 /* | |
| 1219 * Create a new extmatch and mark it as referenced once. | |
| 1220 */ | |
| 1221 static reg_extmatch_T * | |
|
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|
1222 make_extmatch(void) |
| 7 | 1223 { |
| 1224 reg_extmatch_T *em; | |
| 1225 | |
|
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|
1226 em = ALLOC_CLEAR_ONE(reg_extmatch_T); |
| 7 | 1227 if (em != NULL) |
| 1228 em->refcnt = 1; | |
| 1229 return em; | |
| 1230 } | |
| 1231 | |
| 1232 /* | |
| 1233 * Add a reference to an extmatch. | |
| 1234 */ | |
| 1235 reg_extmatch_T * | |
|
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|
1236 ref_extmatch(reg_extmatch_T *em) |
| 7 | 1237 { |
| 1238 if (em != NULL) | |
| 1239 em->refcnt++; | |
| 1240 return em; | |
| 1241 } | |
| 1242 | |
| 1243 /* | |
| 1244 * Remove a reference to an extmatch. If there are no references left, free | |
| 1245 * the info. | |
| 1246 */ | |
| 1247 void | |
|
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1248 unref_extmatch(reg_extmatch_T *em) |
| 7 | 1249 { |
| 1250 int i; | |
| 1251 | |
| 1252 if (em != NULL && --em->refcnt <= 0) | |
| 1253 { | |
| 1254 for (i = 0; i < NSUBEXP; ++i) | |
| 1255 vim_free(em->matches[i]); | |
| 1256 vim_free(em); | |
| 1257 } | |
| 1258 } | |
| 1259 #endif | |
| 1260 | |
| 1261 /* | |
| 1262 * Get class of previous character. | |
| 1263 */ | |
| 1264 static int | |
|
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|
1265 reg_prev_class(void) |
| 7 | 1266 { |
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1267 if (rex.input > rex.line) |
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1268 return mb_get_class_buf(rex.input - 1 |
|
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1269 - (*mb_head_off)(rex.line, rex.input - 1), rex.reg_buf); |
| 7 | 1270 return -1; |
| 1271 } | |
| 5735 | 1272 |
|
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1273 /* |
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1274 * Return TRUE if the current rex.input position matches the Visual area. |
|
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1275 */ |
|
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1276 static int |
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|
1277 reg_match_visual(void) |
|
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1278 { |
|
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1279 pos_T top, bot; |
|
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|
1280 linenr_T lnum; |
|
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1281 colnr_T col; |
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|
1282 win_T *wp = rex.reg_win == NULL ? curwin : rex.reg_win; |
|
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1283 int mode; |
|
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1284 colnr_T start, end; |
|
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|
1285 colnr_T start2, end2; |
|
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1286 colnr_T cols; |
|
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1287 colnr_T curswant; |
|
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1288 |
|
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1289 // 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
|
1290 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
|
1291 return FALSE; |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
1292 |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
1293 if (VIsual_active) |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
1294 { |
|
11121
778c10516955
patch 8.0.0448: some macros are in lower case
Christian Brabandt <cb@256bit.org>
parents:
10359
diff
changeset
|
1295 if (LT_POS(VIsual, wp->w_cursor)) |
|
4730
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
1296 { |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
1297 top = VIsual; |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
1298 bot = wp->w_cursor; |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
1299 } |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
1300 else |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
1301 { |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
1302 top = wp->w_cursor; |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
1303 bot = VIsual; |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
1304 } |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
1305 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
|
1306 curswant = wp->w_curswant; |
|
4730
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
1307 } |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
1308 else |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
1309 { |
|
11121
778c10516955
patch 8.0.0448: some macros are in lower case
Christian Brabandt <cb@256bit.org>
parents:
10359
diff
changeset
|
1310 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
|
1311 { |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
1312 top = curbuf->b_visual.vi_start; |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
1313 bot = curbuf->b_visual.vi_end; |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
1314 } |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
1315 else |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
1316 { |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
1317 top = curbuf->b_visual.vi_end; |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
1318 bot = curbuf->b_visual.vi_start; |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
1319 } |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
1320 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
|
1321 curswant = curbuf->b_visual.vi_curswant; |
|
4730
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
1322 } |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
1323 lnum = rex.lnum + rex.reg_firstlnum; |
|
4730
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
1324 if (lnum < top.lnum || lnum > bot.lnum) |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
1325 return FALSE; |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
1326 |
|
26841
48d6f187e9c0
patch 8.2.3949: using freed memory with /%V
Bram Moolenaar <Bram@vim.org>
parents:
26534
diff
changeset
|
1327 col = (colnr_T)(rex.input - rex.line); |
|
4730
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
1328 if (mode == 'v') |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
1329 { |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
1330 if ((lnum == top.lnum && col < top.col) |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
1331 || (lnum == bot.lnum && col >= bot.col + (*p_sel != 'e'))) |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
1332 return FALSE; |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
1333 } |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
1334 else if (mode == Ctrl_V) |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
1335 { |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
1336 getvvcol(wp, &top, &start, NULL, &end); |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
1337 getvvcol(wp, &bot, &start2, NULL, &end2); |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
1338 if (start2 < start) |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
1339 start = start2; |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
1340 if (end2 > end) |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
1341 end = end2; |
|
24745
b1fa3f005c93
patch 8.2.2911: pattern "%V" does not match all of block selection
Bram Moolenaar <Bram@vim.org>
parents:
24488
diff
changeset
|
1342 if (top.col == MAXCOL || bot.col == MAXCOL || curswant == MAXCOL) |
|
4730
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
1343 end = MAXCOL; |
|
26841
48d6f187e9c0
patch 8.2.3949: using freed memory with /%V
Bram Moolenaar <Bram@vim.org>
parents:
26534
diff
changeset
|
1344 |
|
48d6f187e9c0
patch 8.2.3949: using freed memory with /%V
Bram Moolenaar <Bram@vim.org>
parents:
26534
diff
changeset
|
1345 // getvvcol() flushes rex.line, need to get it again |
|
48d6f187e9c0
patch 8.2.3949: using freed memory with /%V
Bram Moolenaar <Bram@vim.org>
parents:
26534
diff
changeset
|
1346 rex.line = reg_getline(rex.lnum); |
|
48d6f187e9c0
patch 8.2.3949: using freed memory with /%V
Bram Moolenaar <Bram@vim.org>
parents:
26534
diff
changeset
|
1347 rex.input = rex.line + col; |
|
48d6f187e9c0
patch 8.2.3949: using freed memory with /%V
Bram Moolenaar <Bram@vim.org>
parents:
26534
diff
changeset
|
1348 |
|
29451
057c26b5c33a
patch 9.0.0067: cannot show virtual text
Bram Moolenaar <Bram@vim.org>
parents:
29410
diff
changeset
|
1349 cols = win_linetabsize(wp, rex.reg_firstlnum + rex.lnum, rex.line, col); |
|
4730
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
1350 if (cols < start || cols > end - (*p_sel == 'e')) |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
1351 return FALSE; |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
1352 } |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
1353 return TRUE; |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
1354 } |
|
749e2b2755d5
updated for version 7.3.1112
Bram Moolenaar <bram@vim.org>
parents:
4720
diff
changeset
|
1355 |
| 7 | 1356 /* |
| 1357 * Check the regexp program for its magic number. | |
| 1358 * Return TRUE if it's wrong. | |
| 1359 */ | |
| 1360 static int | |
|
7833
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
1361 prog_magic_wrong(void) |
| 7 | 1362 { |
| 4444 | 1363 regprog_T *prog; |
| 1364 | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
1365 prog = REG_MULTI ? rex.reg_mmatch->regprog : rex.reg_match->regprog; |
| 4444 | 1366 if (prog->engine == &nfa_regengine) |
|
18812
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
1367 // For NFA matcher we don't check the magic |
| 4444 | 1368 return FALSE; |
| 1369 | |
| 1370 if (UCHARAT(((bt_regprog_T *)prog)->program) != REGMAGIC) | |
| 7 | 1371 { |
|
25306
078edc1821bf
patch 8.2.3190: error messages are spread out
Bram Moolenaar <Bram@vim.org>
parents:
24768
diff
changeset
|
1372 emsg(_(e_corrupted_regexp_program)); |
| 7 | 1373 return TRUE; |
| 1374 } | |
| 1375 return FALSE; | |
| 1376 } | |
| 1377 | |
| 1378 /* | |
| 1379 * Cleanup the subexpressions, if this wasn't done yet. | |
| 1380 * This construction is used to clear the subexpressions only when they are | |
| 1381 * used (to increase speed). | |
| 1382 */ | |
| 1383 static void | |
|
7833
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
1384 cleanup_subexpr(void) |
| 7 | 1385 { |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
1386 if (rex.need_clear_subexpr) |
| 7 | 1387 { |
| 1388 if (REG_MULTI) | |
| 1389 { | |
|
18812
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
1390 // Use 0xff to set lnum to -1 |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
1391 vim_memset(rex.reg_startpos, 0xff, sizeof(lpos_T) * NSUBEXP); |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
1392 vim_memset(rex.reg_endpos, 0xff, sizeof(lpos_T) * NSUBEXP); |
| 7 | 1393 } |
| 1394 else | |
| 1395 { | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
1396 vim_memset(rex.reg_startp, 0, sizeof(char_u *) * NSUBEXP); |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
1397 vim_memset(rex.reg_endp, 0, sizeof(char_u *) * NSUBEXP); |
| 7 | 1398 } |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
1399 rex.need_clear_subexpr = FALSE; |
| 7 | 1400 } |
| 1401 } | |
| 1402 | |
| 1403 #ifdef FEAT_SYN_HL | |
| 1404 static void | |
|
7833
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
1405 cleanup_zsubexpr(void) |
| 7 | 1406 { |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
1407 if (rex.need_clear_zsubexpr) |
| 7 | 1408 { |
| 1409 if (REG_MULTI) | |
| 1410 { | |
|
18812
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
1411 // Use 0xff to set lnum to -1 |
| 7 | 1412 vim_memset(reg_startzpos, 0xff, sizeof(lpos_T) * NSUBEXP); |
| 1413 vim_memset(reg_endzpos, 0xff, sizeof(lpos_T) * NSUBEXP); | |
| 1414 } | |
| 1415 else | |
| 1416 { | |
| 1417 vim_memset(reg_startzp, 0, sizeof(char_u *) * NSUBEXP); | |
| 1418 vim_memset(reg_endzp, 0, sizeof(char_u *) * NSUBEXP); | |
| 1419 } | |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
1420 rex.need_clear_zsubexpr = FALSE; |
| 7 | 1421 } |
| 1422 } | |
| 1423 #endif | |
| 1424 | |
| 1425 /* | |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
1426 * Advance rex.lnum, rex.line and rex.input to the next line. |
| 7 | 1427 */ |
| 1428 static void | |
|
7833
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
1429 reg_nextline(void) |
| 7 | 1430 { |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
1431 rex.line = reg_getline(++rex.lnum); |
|
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
1432 rex.input = rex.line; |
| 7 | 1433 fast_breakcheck(); |
| 1434 } | |
| 1435 | |
| 1436 /* | |
|
4891
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
1437 * Check whether a backreference matches. |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
1438 * Returns RA_FAIL, RA_NOMATCH or RA_MATCH. |
| 5504 | 1439 * If "bytelen" is not NULL, it is set to the byte length of the match in the |
| 1440 * last line. | |
|
4891
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
1441 */ |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
4805
diff
changeset
|
1442 static int |
|
7833
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
1443 match_with_backref( |
|
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
1444 linenr_T start_lnum, |
|
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
1445 colnr_T start_col, |
|
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
1446 linenr_T end_lnum, |
|
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
1447 colnr_T end_col, |
|
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
1448 int *bytelen) |
|
4891
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Bram Moolenaar <bram@vim.org>
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|
1449 { |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
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diff
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|
1450 linenr_T clnum = start_lnum; |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
1451 colnr_T ccol = start_col; |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
1452 int len; |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
1453 char_u *p; |
|
4c42efb4c098
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Bram Moolenaar <bram@vim.org>
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diff
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|
1454 |
|
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updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
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diff
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|
1455 if (bytelen != NULL) |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
1456 *bytelen = 0; |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
1457 for (;;) |
|
4c42efb4c098
updated for version 7.3.1191
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
1458 { |
|
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parents:
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diff
changeset
|
1459 // Since getting one line may invalidate the other, need to make copy. |
|
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
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diff
changeset
|
1460 // Slow! |
|
14354
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parents:
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diff
changeset
|
1461 if (rex.line != reg_tofree) |
|
4891
4c42efb4c098
updated for version 7.3.1191
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parents:
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diff
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|
1462 { |
|
14354
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diff
changeset
|
1463 len = (int)STRLEN(rex.line); |
|
4891
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updated for version 7.3.1191
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diff
changeset
|
1464 if (reg_tofree == NULL || len >= (int)reg_tofreelen) |
|
4c42efb4c098
updated for version 7.3.1191
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diff
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|
1465 { |
|
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diff
changeset
|
1466 len += 50; // get some extra |
|
4891
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parents:
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diff
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|
1467 vim_free(reg_tofree); |
|
4c42efb4c098
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parents:
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diff
changeset
|
1468 reg_tofree = alloc(len); |
|
4c42efb4c098
updated for version 7.3.1191
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parents:
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diff
changeset
|
1469 if (reg_tofree == NULL) |
|
18812
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parents:
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diff
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|
1470 return RA_FAIL; // out of memory! |
|
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|
1471 reg_tofreelen = len; |
|
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|
1472 } |
|
14354
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|
1473 STRCPY(reg_tofree, rex.line); |
|
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|
1474 rex.input = reg_tofree + (rex.input - rex.line); |
|
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|
1475 rex.line = reg_tofree; |
|
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|
1476 } |
|
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|
1477 |
|
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|
1478 // Get the line to compare with. |
|
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|
1479 p = reg_getline(clnum); |
|
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|
1480 if (clnum == end_lnum) |
|
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|
1481 len = end_col - ccol; |
|
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|
1482 else |
|
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changeset
|
1483 len = (int)STRLEN(p + ccol); |
|
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|
1484 |
|
14354
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|
1485 if (cstrncmp(p + ccol, rex.input, &len) != 0) |
|
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|
1486 return RA_NOMATCH; // doesn't match |
|
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|
1487 if (bytelen != NULL) |
|
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|
1488 *bytelen += len; |
|
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|
1489 if (clnum == end_lnum) |
|
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|
1490 break; // match and at end! |
|
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|
1491 if (rex.lnum >= rex.reg_maxline) |
|
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|
1492 return RA_NOMATCH; // text too short |
|
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|
1493 |
|
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|
1494 // Advance to next line. |
|
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diff
changeset
|
1495 reg_nextline(); |
| 5504 | 1496 if (bytelen != NULL) |
| 1497 *bytelen = 0; | |
|
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|
1498 ++clnum; |
|
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|
1499 ccol = 0; |
|
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|
1500 if (got_int) |
|
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|
1501 return RA_FAIL; |
|
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|
1502 } |
|
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|
1503 |
|
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|
1504 // found a match! Note that rex.line may now point to a copy of the line, |
|
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|
1505 // that should not matter. |
|
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|
1506 return RA_MATCH; |
|
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diff
changeset
|
1507 } |
| 7 | 1508 |
| 6203 | 1509 /* |
| 1510 * Used in a place where no * or \+ can follow. | |
| 1511 */ | |
| 1512 static int | |
|
7833
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parents:
7807
diff
changeset
|
1513 re_mult_next(char *what) |
| 6203 | 1514 { |
| 1515 if (re_multi_type(peekchr()) == MULTI_MULT) | |
|
15480
bd12ace1bab2
patch 8.1.0748: using sprintf() instead of semsg()
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|
1516 { |
|
26966
ac75c145f0a9
patch 8.2.4012: error messages are spread out
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diff
changeset
|
1517 semsg(_(e_nfa_regexp_cannot_repeat_str), what); |
|
15480
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changeset
|
1518 rc_did_emsg = TRUE; |
|
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patch 8.1.0748: using sprintf() instead of semsg()
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|
1519 return FAIL; |
|
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changeset
|
1520 } |
| 6203 | 1521 return OK; |
| 1522 } | |
| 1523 | |
| 7 | 1524 typedef struct |
| 1525 { | |
| 1526 int a, b, c; | |
| 1527 } decomp_T; | |
| 1528 | |
| 1529 | |
|
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|
1530 // 0xfb20 - 0xfb4f |
| 297 | 1531 static decomp_T decomp_table[0xfb4f-0xfb20+1] = |
| 7 | 1532 { |
|
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|
1533 {0x5e2,0,0}, // 0xfb20 alt ayin |
|
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|
1534 {0x5d0,0,0}, // 0xfb21 alt alef |
|
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diff
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|
1535 {0x5d3,0,0}, // 0xfb22 alt dalet |
|
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diff
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|
1536 {0x5d4,0,0}, // 0xfb23 alt he |
|
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diff
changeset
|
1537 {0x5db,0,0}, // 0xfb24 alt kaf |
|
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diff
changeset
|
1538 {0x5dc,0,0}, // 0xfb25 alt lamed |
|
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diff
changeset
|
1539 {0x5dd,0,0}, // 0xfb26 alt mem-sofit |
|
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diff
changeset
|
1540 {0x5e8,0,0}, // 0xfb27 alt resh |
|
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diff
changeset
|
1541 {0x5ea,0,0}, // 0xfb28 alt tav |
|
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diff
changeset
|
1542 {'+', 0, 0}, // 0xfb29 alt plus |
|
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changeset
|
1543 {0x5e9, 0x5c1, 0}, // 0xfb2a shin+shin-dot |
|
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patch 8.1.2394: using old C style comments
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changeset
|
1544 {0x5e9, 0x5c2, 0}, // 0xfb2b shin+sin-dot |
|
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diff
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|
1545 {0x5e9, 0x5c1, 0x5bc}, // 0xfb2c shin+shin-dot+dagesh |
|
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diff
changeset
|
1546 {0x5e9, 0x5c2, 0x5bc}, // 0xfb2d shin+sin-dot+dagesh |
|
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|
1547 {0x5d0, 0x5b7, 0}, // 0xfb2e alef+patah |
|
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diff
changeset
|
1548 {0x5d0, 0x5b8, 0}, // 0xfb2f alef+qamats |
|
d34ec6fe207d
patch 8.1.2394: using old C style comments
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diff
changeset
|
1549 {0x5d0, 0x5b4, 0}, // 0xfb30 alef+hiriq |
|
d34ec6fe207d
patch 8.1.2394: using old C style comments
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diff
changeset
|
1550 {0x5d1, 0x5bc, 0}, // 0xfb31 bet+dagesh |
|
d34ec6fe207d
patch 8.1.2394: using old C style comments
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diff
changeset
|
1551 {0x5d2, 0x5bc, 0}, // 0xfb32 gimel+dagesh |
|
d34ec6fe207d
patch 8.1.2394: using old C style comments
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diff
changeset
|
1552 {0x5d3, 0x5bc, 0}, // 0xfb33 dalet+dagesh |
|
d34ec6fe207d
patch 8.1.2394: using old C style comments
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diff
changeset
|
1553 {0x5d4, 0x5bc, 0}, // 0xfb34 he+dagesh |
|
d34ec6fe207d
patch 8.1.2394: using old C style comments
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diff
changeset
|
1554 {0x5d5, 0x5bc, 0}, // 0xfb35 vav+dagesh |
|
d34ec6fe207d
patch 8.1.2394: using old C style comments
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diff
changeset
|
1555 {0x5d6, 0x5bc, 0}, // 0xfb36 zayin+dagesh |
|
d34ec6fe207d
patch 8.1.2394: using old C style comments
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diff
changeset
|
1556 {0xfb37, 0, 0}, // 0xfb37 -- UNUSED |
|
d34ec6fe207d
patch 8.1.2394: using old C style comments
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diff
changeset
|
1557 {0x5d8, 0x5bc, 0}, // 0xfb38 tet+dagesh |
|
d34ec6fe207d
patch 8.1.2394: using old C style comments
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diff
changeset
|
1558 {0x5d9, 0x5bc, 0}, // 0xfb39 yud+dagesh |
|
d34ec6fe207d
patch 8.1.2394: using old C style comments
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diff
changeset
|
1559 {0x5da, 0x5bc, 0}, // 0xfb3a kaf sofit+dagesh |
|
d34ec6fe207d
patch 8.1.2394: using old C style comments
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diff
changeset
|
1560 {0x5db, 0x5bc, 0}, // 0xfb3b kaf+dagesh |
|
d34ec6fe207d
patch 8.1.2394: using old C style comments
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diff
changeset
|
1561 {0x5dc, 0x5bc, 0}, // 0xfb3c lamed+dagesh |
|
d34ec6fe207d
patch 8.1.2394: using old C style comments
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parents:
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diff
changeset
|
1562 {0xfb3d, 0, 0}, // 0xfb3d -- UNUSED |
|
d34ec6fe207d
patch 8.1.2394: using old C style comments
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parents:
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diff
changeset
|
1563 {0x5de, 0x5bc, 0}, // 0xfb3e mem+dagesh |
|
d34ec6fe207d
patch 8.1.2394: using old C style comments
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diff
changeset
|
1564 {0xfb3f, 0, 0}, // 0xfb3f -- UNUSED |
|
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
1565 {0x5e0, 0x5bc, 0}, // 0xfb40 nun+dagesh |
|
d34ec6fe207d
patch 8.1.2394: using old C style comments
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parents:
18576
diff
changeset
|
1566 {0x5e1, 0x5bc, 0}, // 0xfb41 samech+dagesh |
|
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
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diff
changeset
|
1567 {0xfb42, 0, 0}, // 0xfb42 -- UNUSED |
|
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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
|
1568 {0x5e3, 0x5bc, 0}, // 0xfb43 pe sofit+dagesh |
|
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
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diff
changeset
|
1569 {0x5e4, 0x5bc,0}, // 0xfb44 pe+dagesh |
|
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
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diff
changeset
|
1570 {0xfb45, 0, 0}, // 0xfb45 -- UNUSED |
|
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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
|
1571 {0x5e6, 0x5bc, 0}, // 0xfb46 tsadi+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
|
1572 {0x5e7, 0x5bc, 0}, // 0xfb47 qof+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
|
1573 {0x5e8, 0x5bc, 0}, // 0xfb48 resh+dagesh |
|
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
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diff
changeset
|
1574 {0x5e9, 0x5bc, 0}, // 0xfb49 shin+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
|
1575 {0x5ea, 0x5bc, 0}, // 0xfb4a tav+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
|
1576 {0x5d5, 0x5b9, 0}, // 0xfb4b vav+holam |
|
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patch 8.1.2394: using old C style comments
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parents:
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diff
changeset
|
1577 {0x5d1, 0x5bf, 0}, // 0xfb4c bet+rafe |
|
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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
|
1578 {0x5db, 0x5bf, 0}, // 0xfb4d kaf+rafe |
|
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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
|
1579 {0x5e4, 0x5bf, 0}, // 0xfb4e pe+rafe |
|
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patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
1580 {0x5d0, 0x5dc, 0} // 0xfb4f alef-lamed |
| 7 | 1581 }; |
| 1582 | |
| 1583 static void | |
|
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commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
1584 mb_decompose(int c, int *c1, int *c2, int *c3) |
| 7 | 1585 { |
| 1586 decomp_T d; | |
| 1587 | |
|
4505
d037b9cbdaaa
updated for version 7.3.1000
Bram Moolenaar <bram@vim.org>
parents:
4466
diff
changeset
|
1588 if (c >= 0xfb20 && c <= 0xfb4f) |
| 7 | 1589 { |
| 1590 d = decomp_table[c - 0xfb20]; | |
| 1591 *c1 = d.a; | |
| 1592 *c2 = d.b; | |
| 1593 *c3 = d.c; | |
| 1594 } | |
| 1595 else | |
| 1596 { | |
| 1597 *c1 = c; | |
| 1598 *c2 = *c3 = 0; | |
| 1599 } | |
| 1600 } | |
| 1601 | |
| 1602 /* | |
|
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commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
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parents:
10187
diff
changeset
|
1603 * Compare two strings, ignore case if rex.reg_ic set. |
| 7 | 1604 * Return 0 if strings match, non-zero otherwise. |
| 1605 * Correct the length "*n" when composing characters are ignored. | |
| 1606 */ | |
| 1607 static int | |
|
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commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
1608 cstrncmp(char_u *s1, char_u *s2, int *n) |
| 7 | 1609 { |
| 1610 int result; | |
| 1611 | |
|
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commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
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parents:
10187
diff
changeset
|
1612 if (!rex.reg_ic) |
| 7 | 1613 result = STRNCMP(s1, s2, *n); |
| 1614 else | |
| 1615 result = MB_STRNICMP(s1, s2, *n); | |
| 1616 | |
|
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patch 8.1.2394: using old C style comments
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parents:
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diff
changeset
|
1617 // 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
|
1618 if (result != 0 && enc_utf8 && rex.reg_icombine) |
| 7 | 1619 { |
| 1620 char_u *str1, *str2; | |
| 1621 int c1, c2, c11, c12; | |
| 1622 int junk; | |
| 1623 | |
|
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diff
changeset
|
1624 // 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
|
1625 // deal with the composing characters by ignoring them: |
| 7 | 1626 str1 = s1; |
| 1627 str2 = s2; | |
| 1628 c1 = c2 = 0; | |
| 507 | 1629 while ((int)(str1 - s1) < *n) |
| 7 | 1630 { |
| 1631 c1 = mb_ptr2char_adv(&str1); | |
| 1632 c2 = mb_ptr2char_adv(&str2); | |
| 1633 | |
|
18019
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patch 8.1.2005: the regexp.c file is too big
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parents:
17966
diff
changeset
|
1634 // Decompose the character if necessary, into 'base' characters. |
|
68fd5296bf73
patch 8.1.2005: the regexp.c file is too big
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diff
changeset
|
1635 // Currently hard-coded for Hebrew, Arabic to be done... |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
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parents:
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diff
changeset
|
1636 if (c1 != c2 && (!rex.reg_ic || utf_fold(c1) != utf_fold(c2))) |
| 7 | 1637 { |
|
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patch 8.1.2005: the regexp.c file is too big
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parents:
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diff
changeset
|
1638 // decomposition necessary? |
| 7 | 1639 mb_decompose(c1, &c11, &junk, &junk); |
| 1640 mb_decompose(c2, &c12, &junk, &junk); | |
| 1641 c1 = c11; | |
| 1642 c2 = c12; | |
|
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Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
1643 if (c11 != c12 |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
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diff
changeset
|
1644 && (!rex.reg_ic || utf_fold(c11) != utf_fold(c12))) |
| 7 | 1645 break; |
| 1646 } | |
| 1647 } | |
| 1648 result = c2 - c1; | |
| 1649 if (result == 0) | |
| 1650 *n = (int)(str2 - s2); | |
| 1651 } | |
| 1652 | |
| 1653 return result; | |
| 1654 } | |
| 1655 | |
| 1656 /* | |
| 1657 * cstrchr: This function is used a lot for simple searches, keep it fast! | |
| 1658 */ | |
| 1659 static char_u * | |
|
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Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
1660 cstrchr(char_u *s, int c) |
| 7 | 1661 { |
| 1662 char_u *p; | |
| 1663 int cc; | |
| 1664 | |
|
15603
639b8318472c
patch 8.1.0809: too many #ifdefs
Bram Moolenaar <Bram@vim.org>
parents:
15555
diff
changeset
|
1665 if (!rex.reg_ic || (!enc_utf8 && mb_char2len(c) > 1)) |
| 7 | 1666 return vim_strchr(s, c); |
| 1667 | |
|
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parents:
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diff
changeset
|
1668 // tolower() and toupper() can be slow, comparing twice should be a lot |
|
d34ec6fe207d
patch 8.1.2394: using old C style comments
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parents:
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diff
changeset
|
1669 // faster (esp. when using MS Visual C++!). |
|
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patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
1670 // For UTF-8 need to use folded case. |
| 7 | 1671 if (enc_utf8 && c > 0x80) |
| 1672 cc = utf_fold(c); | |
| 1673 else | |
| 1347 | 1674 if (MB_ISUPPER(c)) |
| 1675 cc = MB_TOLOWER(c); | |
| 1676 else if (MB_ISLOWER(c)) | |
| 1677 cc = MB_TOUPPER(c); | |
| 7 | 1678 else |
| 1679 return vim_strchr(s, c); | |
| 1680 | |
| 1681 if (has_mbyte) | |
| 1682 { | |
| 474 | 1683 for (p = s; *p != NUL; p += (*mb_ptr2len)(p)) |
| 7 | 1684 { |
| 1685 if (enc_utf8 && c > 0x80) | |
| 1686 { | |
|
29527
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patch 9.0.0105: illegal memory access when pattern starts with illegal byte
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parents:
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diff
changeset
|
1687 int uc = utf_ptr2char(p); |
|
e7158d889784
patch 9.0.0105: illegal memory access when pattern starts with illegal byte
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parents:
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diff
changeset
|
1688 |
|
e7158d889784
patch 9.0.0105: illegal memory access when pattern starts with illegal byte
Bram Moolenaar <Bram@vim.org>
parents:
29451
diff
changeset
|
1689 // Do not match an illegal byte. E.g. 0xff matches 0xc3 0xbf, |
|
e7158d889784
patch 9.0.0105: illegal memory access when pattern starts with illegal byte
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parents:
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diff
changeset
|
1690 // not 0xff. |
|
e7158d889784
patch 9.0.0105: illegal memory access when pattern starts with illegal byte
Bram Moolenaar <Bram@vim.org>
parents:
29451
diff
changeset
|
1691 if ((uc < 0x80 || uc != *p) && utf_fold(uc) == cc) |
| 7 | 1692 return p; |
| 1693 } | |
| 1694 else if (*p == c || *p == cc) | |
| 1695 return p; | |
| 1696 } | |
| 1697 } | |
| 1698 else | |
|
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parents:
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diff
changeset
|
1699 // Faster version for when there are no multi-byte characters. |
| 7 | 1700 for (p = s; *p != NUL; ++p) |
| 1701 if (*p == c || *p == cc) | |
| 1702 return p; | |
| 1703 | |
| 1704 return NULL; | |
| 1705 } | |
| 1706 | |
|
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diff
changeset
|
1707 //////////////////////////////////////////////////////////////// |
|
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patch 8.1.2394: using old C style comments
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parents:
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diff
changeset
|
1708 // regsub stuff // |
|
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parents:
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diff
changeset
|
1709 //////////////////////////////////////////////////////////////// |
| 7 | 1710 |
| 1711 /* | |
| 1712 * We should define ftpr as a pointer to a function returning a pointer to | |
| 1713 * a function returning a pointer to a function ... | |
| 1714 * This is impossible, so we declare a pointer to a function returning a | |
|
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patch 8.2.1625: compiler warning for use of fptr_T
Bram Moolenaar <Bram@vim.org>
parents:
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diff
changeset
|
1715 * void pointer. This should work for all compilers. |
| 7 | 1716 */ |
|
22151
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patch 8.2.1625: compiler warning for use of fptr_T
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parents:
22143
diff
changeset
|
1717 typedef void (*(*fptr_T)(int *, int)); |
|
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commit https://github.com/vim/vim/commit/baaa7e9ec7398a813e21285c272fa99792642077
Christian Brabandt <cb@256bit.org>
parents:
7009
diff
changeset
|
1718 |
|
29048
c98fc7a4dde4
patch 8.2.5046: vim_regsub() can overwrite the destination
Bram Moolenaar <Bram@vim.org>
parents:
28692
diff
changeset
|
1719 static int vim_regsub_both(char_u *source, typval_T *expr, char_u *dest, int destlen, int flags); |
| 7 | 1720 |
| 772 | 1721 static fptr_T |
|
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Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
1722 do_upper(int *d, int c) |
| 7 | 1723 { |
| 772 | 1724 *d = MB_TOUPPER(c); |
| 1725 | |
| 1726 return (fptr_T)NULL; | |
| 7 | 1727 } |
| 1728 | |
| 772 | 1729 static fptr_T |
|
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commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
1730 do_Upper(int *d, int c) |
| 7 | 1731 { |
| 772 | 1732 *d = MB_TOUPPER(c); |
| 1733 | |
| 1734 return (fptr_T)do_Upper; | |
| 1735 } | |
| 1736 | |
| 1737 static fptr_T | |
|
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commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
1738 do_lower(int *d, int c) |
| 772 | 1739 { |
| 1740 *d = MB_TOLOWER(c); | |
| 1741 | |
| 1742 return (fptr_T)NULL; | |
| 1743 } | |
| 1744 | |
| 1745 static fptr_T | |
|
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commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
1746 do_Lower(int *d, int c) |
| 772 | 1747 { |
| 1748 *d = MB_TOLOWER(c); | |
| 1749 | |
| 1750 return (fptr_T)do_Lower; | |
| 7 | 1751 } |
| 1752 | |
| 1753 /* | |
| 1754 * regtilde(): Replace tildes in the pattern by the old pattern. | |
| 1755 * | |
| 1756 * Short explanation of the tilde: It stands for the previous replacement | |
| 1757 * pattern. If that previous pattern also contains a ~ we should go back a | |
| 1758 * step further... But we insert the previous pattern into the current one | |
| 1759 * and remember that. | |
| 772 | 1760 * This still does not handle the case where "magic" changes. So require the |
| 1761 * user to keep his hands off of "magic". | |
| 7 | 1762 * |
| 1763 * The tildes are parsed once before the first call to vim_regsub(). | |
| 1764 */ | |
| 1765 char_u * | |
|
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7807
diff
changeset
|
1766 regtilde(char_u *source, int magic) |
| 7 | 1767 { |
| 1768 char_u *newsub = source; | |
| 1769 char_u *tmpsub; | |
| 1770 char_u *p; | |
| 1771 int len; | |
| 1772 int prevlen; | |
| 1773 | |
| 1774 for (p = newsub; *p; ++p) | |
| 1775 { | |
| 1776 if ((*p == '~' && magic) || (*p == '\\' && *(p + 1) == '~' && !magic)) | |
| 1777 { | |
| 1778 if (reg_prev_sub != NULL) | |
| 1779 { | |
|
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diff
changeset
|
1780 // length = len(newsub) - 1 + len(prev_sub) + 1 |
| 7 | 1781 prevlen = (int)STRLEN(reg_prev_sub); |
|
16764
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patch 8.1.1384: using "int" for alloc() often results in compiler warnings
Bram Moolenaar <Bram@vim.org>
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16634
diff
changeset
|
1782 tmpsub = alloc(STRLEN(newsub) + prevlen); |
| 7 | 1783 if (tmpsub != NULL) |
| 1784 { | |
|
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diff
changeset
|
1785 // copy prefix |
|
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changeset
|
1786 len = (int)(p - newsub); // not including ~ |
| 7 | 1787 mch_memmove(tmpsub, newsub, (size_t)len); |
|
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changeset
|
1788 // interpret tilde |
| 7 | 1789 mch_memmove(tmpsub + len, reg_prev_sub, (size_t)prevlen); |
|
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changeset
|
1790 // copy postfix |
| 7 | 1791 if (!magic) |
|
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parents:
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|
1792 ++p; // back off backslash |
| 7 | 1793 STRCPY(tmpsub + len + prevlen, p + 1); |
| 1794 | |
|
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parents:
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diff
changeset
|
1795 if (newsub != source) // already allocated newsub |
| 7 | 1796 vim_free(newsub); |
| 1797 newsub = tmpsub; | |
| 1798 p = newsub + len + prevlen; | |
| 1799 } | |
| 1800 } | |
| 1801 else if (magic) | |
|
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changeset
|
1802 STRMOVE(p, p + 1); // remove '~' |
| 7 | 1803 else |
|
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parents:
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changeset
|
1804 STRMOVE(p, p + 2); // remove '\~' |
| 7 | 1805 --p; |
| 1806 } | |
| 1807 else | |
| 1808 { | |
|
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|
1809 if (*p == '\\' && p[1]) // skip escaped characters |
| 7 | 1810 ++p; |
| 1811 if (has_mbyte) | |
| 474 | 1812 p += (*mb_ptr2len)(p) - 1; |
| 7 | 1813 } |
| 1814 } | |
| 1815 | |
|
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1816 // Store a copy of newsub in reg_prev_sub. It is always allocated, |
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1817 // because recursive calls may make the returned string invalid. |
| 7 | 1818 vim_free(reg_prev_sub); |
|
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1819 reg_prev_sub = vim_strsave(newsub); |
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1820 |
| 7 | 1821 return newsub; |
| 1822 } | |
| 1823 | |
| 1824 #ifdef FEAT_EVAL | |
|
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1825 static int can_f_submatch = FALSE; // TRUE when submatch() can be used |
| 7 | 1826 |
|
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1827 // These pointers are used for reg_submatch(). Needed for when the |
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1828 // substitution string is an expression that contains a call to substitute() |
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1829 // and submatch(). |
|
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1830 typedef struct { |
|
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1831 regmatch_T *sm_match; |
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1832 regmmatch_T *sm_mmatch; |
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1833 linenr_T sm_firstlnum; |
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1834 linenr_T sm_maxline; |
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1835 int sm_line_lbr; |
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1836 } regsubmatch_T; |
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1837 |
|
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1838 static regsubmatch_T rsm; // can only be used when can_f_submatch is TRUE |
| 7 | 1839 #endif |
| 1840 | |
|
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1841 #ifdef FEAT_EVAL |
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1842 |
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1843 /* |
|
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1844 * Put the submatches in "argv[argskip]" which is a list passed into |
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1845 * call_func() by vim_regsub_both(). |
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1846 */ |
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1847 static int |
|
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1848 fill_submatch_list(int argc UNUSED, typval_T *argv, int argskip, ufunc_T *fp) |
|
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1849 { |
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1850 listitem_T *li; |
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1851 int i; |
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1852 char_u *s; |
|
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1853 typval_T *listarg = argv + argskip; |
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1854 |
|
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1855 if (!has_varargs(fp) && fp->uf_args.ga_len <= argskip) |
|
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1856 // called function doesn't take a submatches argument |
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1857 return argskip; |
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1858 |
|
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1859 // Relies on sl_list to be the first item in staticList10_T. |
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1860 init_static_list((staticList10_T *)(listarg->vval.v_list)); |
|
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1861 |
|
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1862 // There are always 10 list items in staticList10_T. |
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1863 li = listarg->vval.v_list->lv_first; |
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1864 for (i = 0; i < 10; ++i) |
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1865 { |
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1866 s = rsm.sm_match->startp[i]; |
|
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1867 if (s == NULL || rsm.sm_match->endp[i] == NULL) |
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1868 s = NULL; |
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1869 else |
|
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1870 s = vim_strnsave(s, rsm.sm_match->endp[i] - s); |
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1871 li->li_tv.v_type = VAR_STRING; |
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1872 li->li_tv.vval.v_string = s; |
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1873 li = li->li_next; |
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1874 } |
|
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1875 return argskip + 1; |
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1876 } |
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1877 |
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1878 static void |
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1879 clear_submatch_list(staticList10_T *sl) |
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1880 { |
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1881 int i; |
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1882 |
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1883 for (i = 0; i < 10; ++i) |
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1884 vim_free(sl->sl_items[i].li_tv.vval.v_string); |
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1885 } |
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1886 #endif |
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1887 |
| 7 | 1888 /* |
| 1889 * vim_regsub() - perform substitutions after a vim_regexec() or | |
| 1890 * vim_regexec_multi() match. | |
| 1891 * | |
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1892 * If "flags" has REGSUB_COPY really copy into "dest[destlen]". |
|
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1893 * Otherwise nothing is copied, only compute the length of the result. |
| 7 | 1894 * |
|
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1895 * If "flags" has REGSUB_MAGIC then behave like 'magic' is set. |
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1896 * |
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1897 * If "flags" has REGSUB_BACKSLASH a backslash will be removed later, need to |
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1898 * double them to keep them, and insert a backslash before a CR to avoid it |
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1899 * being replaced with a line break later. |
| 7 | 1900 * |
| 1901 * Note: The matched text must not change between the call of | |
| 1902 * vim_regexec()/vim_regexec_multi() and vim_regsub()! It would make the back | |
| 1903 * references invalid! | |
| 1904 * | |
| 1905 * Returns the size of the replacement, including terminating NUL. | |
| 1906 */ | |
| 1907 int | |
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1908 vim_regsub( |
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1909 regmatch_T *rmp, |
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1910 char_u *source, |
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1911 typval_T *expr, |
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1912 char_u *dest, |
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1913 int destlen, |
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1914 int flags) |
| 7 | 1915 { |
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1916 int result; |
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1917 regexec_T rex_save; |
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1918 int rex_in_use_save = rex_in_use; |
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1919 |
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1920 if (rex_in_use) |
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1921 // Being called recursively, save the state. |
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1922 rex_save = rex; |
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1923 rex_in_use = TRUE; |
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1924 |
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1925 rex.reg_match = rmp; |
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1926 rex.reg_mmatch = NULL; |
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1927 rex.reg_maxline = 0; |
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1928 rex.reg_buf = curbuf; |
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1929 rex.reg_line_lbr = TRUE; |
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1930 result = vim_regsub_both(source, expr, dest, destlen, flags); |
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1931 |
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1932 rex_in_use = rex_in_use_save; |
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1933 if (rex_in_use) |
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1934 rex = rex_save; |
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1935 |
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1936 return result; |
| 7 | 1937 } |
| 1938 | |
| 1939 int | |
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1940 vim_regsub_multi( |
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1941 regmmatch_T *rmp, |
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1942 linenr_T lnum, |
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1943 char_u *source, |
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1944 char_u *dest, |
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1945 int destlen, |
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1946 int flags) |
| 7 | 1947 { |
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1948 int result; |
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1949 regexec_T rex_save; |
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1950 int rex_in_use_save = rex_in_use; |
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1951 |
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1952 if (rex_in_use) |
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1953 // Being called recursively, save the state. |
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1954 rex_save = rex; |
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1955 rex_in_use = TRUE; |
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1956 |
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1957 rex.reg_match = NULL; |
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1958 rex.reg_mmatch = rmp; |
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1959 rex.reg_buf = curbuf; // always works on the current buffer! |
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1960 rex.reg_firstlnum = lnum; |
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1961 rex.reg_maxline = curbuf->b_ml.ml_line_count - lnum; |
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1962 rex.reg_line_lbr = FALSE; |
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1963 result = vim_regsub_both(source, NULL, dest, destlen, flags); |
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1964 |
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1965 rex_in_use = rex_in_use_save; |
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1966 if (rex_in_use) |
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1967 rex = rex_save; |
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1968 |
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1969 return result; |
| 7 | 1970 } |
| 1971 | |
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1972 #if defined(FEAT_EVAL) || defined(PROTO) |
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1973 // When nesting more than a couple levels it's probably a mistake. |
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1974 # define MAX_REGSUB_NESTING 4 |
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1975 static char_u *eval_result[MAX_REGSUB_NESTING] = {NULL, NULL, NULL, NULL}; |
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1976 |
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1977 # if defined(EXITFREE) || defined(PROTO) |
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1978 void |
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1979 free_resub_eval_result(void) |
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1980 { |
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1981 int i; |
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1982 |
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1983 for (i = 0; i < MAX_REGSUB_NESTING; ++i) |
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1984 VIM_CLEAR(eval_result[i]); |
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1985 } |
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1986 # endif |
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1987 #endif |
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1988 |
| 7 | 1989 static int |
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1990 vim_regsub_both( |
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1991 char_u *source, |
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1992 typval_T *expr, |
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1993 char_u *dest, |
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1994 int destlen, |
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1995 int flags) |
| 7 | 1996 { |
| 1997 char_u *src; | |
| 1998 char_u *dst; | |
| 1999 char_u *s; | |
| 2000 int c; | |
| 772 | 2001 int cc; |
| 7 | 2002 int no = -1; |
| 4244 | 2003 fptr_T func_all = (fptr_T)NULL; |
| 2004 fptr_T func_one = (fptr_T)NULL; | |
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2005 linenr_T clnum = 0; // init for GCC |
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2006 int len = 0; // init for GCC |
| 7 | 2007 #ifdef FEAT_EVAL |
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2008 static int nesting = 0; |
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2009 int nested; |
| 7 | 2010 #endif |
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2011 int copy = flags & REGSUB_COPY; |
| 7 | 2012 |
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2013 // Be paranoid... |
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2014 if ((source == NULL && expr == NULL) || dest == NULL) |
| 7 | 2015 { |
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2016 emsg(_(e_null_argument)); |
| 7 | 2017 return 0; |
| 2018 } | |
| 2019 if (prog_magic_wrong()) | |
| 2020 return 0; | |
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2021 #ifdef FEAT_EVAL |
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2022 if (nesting == MAX_REGSUB_NESTING) |
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2023 { |
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2024 emsg(_(e_substitute_nesting_too_deep)); |
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2025 return 0; |
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2026 } |
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2027 nested = nesting; |
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2028 #endif |
| 7 | 2029 src = source; |
| 2030 dst = dest; | |
| 2031 | |
| 2032 /* | |
| 2033 * When the substitute part starts with "\=" evaluate it as an expression. | |
| 2034 */ | |
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2035 if (expr != NULL || (source[0] == '\\' && source[1] == '=')) |
| 7 | 2036 { |
| 2037 #ifdef FEAT_EVAL | |
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2038 // To make sure that the length doesn't change between checking the |
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2039 // length and copying the string, and to speed up things, the |
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2040 // resulting string is saved from the call with |
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2041 // "flags & REGSUB_COPY" == 0 to the call with |
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2042 // "flags & REGSUB_COPY" != 0. |
| 7 | 2043 if (copy) |
| 2044 { | |
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2045 if (eval_result[nested] != NULL) |
| 7 | 2046 { |
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2047 STRCPY(dest, eval_result[nested]); |
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2048 dst += STRLEN(eval_result[nested]); |
|
5ebc561444fe
patch 8.2.5146: memory leak when substitute expression nests
Bram Moolenaar <Bram@vim.org>
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29245
diff
changeset
|
2049 VIM_CLEAR(eval_result[nested]); |
| 7 | 2050 } |
| 2051 } | |
| 2052 else | |
| 2053 { | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2054 int prev_can_f_submatch = can_f_submatch; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2055 regsubmatch_T rsm_save; |
| 7 | 2056 |
|
29255
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patch 8.2.5146: memory leak when substitute expression nests
Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
2057 VIM_CLEAR(eval_result[nested]); |
| 7 | 2058 |
|
18812
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
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diff
changeset
|
2059 // The expression may contain substitute(), which calls us |
|
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
2060 // recursively. Make sure submatch() gets the text from the first |
|
d34ec6fe207d
patch 8.1.2394: using old C style comments
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18576
diff
changeset
|
2061 // level. |
|
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Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2062 if (can_f_submatch) |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2063 rsm_save = rsm; |
| 7 | 2064 can_f_submatch = TRUE; |
|
10245
d76ccdacb41e
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10187
diff
changeset
|
2065 rsm.sm_match = rex.reg_match; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
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parents:
10187
diff
changeset
|
2066 rsm.sm_mmatch = rex.reg_mmatch; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
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10187
diff
changeset
|
2067 rsm.sm_firstlnum = rex.reg_firstlnum; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
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diff
changeset
|
2068 rsm.sm_maxline = rex.reg_maxline; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
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10187
diff
changeset
|
2069 rsm.sm_line_lbr = rex.reg_line_lbr; |
| 7 | 2070 |
|
29255
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changeset
|
2071 // Although unlikely, it is possible that the expression invokes a |
|
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diff
changeset
|
2072 // substitute command (it might fail, but still). Therefore keep |
|
29272
8175cd4c8fdd
patch 8.2.5154: still mentioning version8, some cosmetic issues
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29255
diff
changeset
|
2073 // an array of eval results. |
|
29255
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|
2074 ++nesting; |
|
5ebc561444fe
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29245
diff
changeset
|
2075 |
|
9589
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commit https://github.com/vim/vim/commit/72ab729c3dcdea0fba44d8e676602c847e841bcd
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9015
diff
changeset
|
2076 if (expr != NULL) |
|
bf204ab1ce7d
commit https://github.com/vim/vim/commit/72ab729c3dcdea0fba44d8e676602c847e841bcd
Christian Brabandt <cb@256bit.org>
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diff
changeset
|
2077 { |
|
9626
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commit https://github.com/vim/vim/commit/df48fb456fb6bf63d94cad9b302ff01d8ee8d311
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9589
diff
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|
2078 typval_T argv[2]; |
|
9589
bf204ab1ce7d
commit https://github.com/vim/vim/commit/72ab729c3dcdea0fba44d8e676602c847e841bcd
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parents:
9015
diff
changeset
|
2079 char_u buf[NUMBUFLEN]; |
|
bf204ab1ce7d
commit https://github.com/vim/vim/commit/72ab729c3dcdea0fba44d8e676602c847e841bcd
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parents:
9015
diff
changeset
|
2080 typval_T rettv; |
|
9626
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parents:
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diff
changeset
|
2081 staticList10_T matchList; |
|
17606
ff097edaae89
patch 8.1.1800: function call functions have too many arguments
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|
2082 funcexe_T funcexe; |
|
9589
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commit https://github.com/vim/vim/commit/72ab729c3dcdea0fba44d8e676602c847e841bcd
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|
2083 |
|
bf204ab1ce7d
commit https://github.com/vim/vim/commit/72ab729c3dcdea0fba44d8e676602c847e841bcd
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9015
diff
changeset
|
2084 rettv.v_type = VAR_STRING; |
|
bf204ab1ce7d
commit https://github.com/vim/vim/commit/72ab729c3dcdea0fba44d8e676602c847e841bcd
Christian Brabandt <cb@256bit.org>
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diff
changeset
|
2085 rettv.vval.v_string = NULL; |
|
10245
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commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
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10187
diff
changeset
|
2086 argv[0].v_type = VAR_LIST; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
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diff
changeset
|
2087 argv[0].vval.v_list = &matchList.sl_list; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2088 matchList.sl_list.lv_len = 0; |
|
20007
aadd1cae2ff5
patch 8.2.0559: clearing a struct is verbose
Bram Moolenaar <Bram@vim.org>
parents:
19892
diff
changeset
|
2089 CLEAR_FIELD(funcexe); |
|
26534
28745eec1dda
patch 8.2.3796: the funcexe_T struct members are not named consistently
Bram Moolenaar <Bram@vim.org>
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changeset
|
2090 funcexe.fe_argv_func = fill_submatch_list; |
|
28745eec1dda
patch 8.2.3796: the funcexe_T struct members are not named consistently
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diff
changeset
|
2091 funcexe.fe_evaluate = TRUE; |
|
10245
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commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2092 if (expr->v_type == VAR_FUNC) |
|
9589
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commit https://github.com/vim/vim/commit/72ab729c3dcdea0fba44d8e676602c847e841bcd
Christian Brabandt <cb@256bit.org>
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|
2093 { |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
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parents:
10187
diff
changeset
|
2094 s = expr->vval.v_string; |
|
17606
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patch 8.1.1800: function call functions have too many arguments
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17444
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changeset
|
2095 call_func(s, -1, &rettv, 1, argv, &funcexe); |
|
9589
bf204ab1ce7d
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|
2096 } |
|
10245
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parents:
10187
diff
changeset
|
2097 else if (expr->v_type == VAR_PARTIAL) |
|
9589
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commit https://github.com/vim/vim/commit/72ab729c3dcdea0fba44d8e676602c847e841bcd
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diff
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|
2098 { |
|
10245
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10187
diff
changeset
|
2099 partial_T *partial = expr->vval.v_partial; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
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|
2100 |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2101 s = partial_name(partial); |
|
26534
28745eec1dda
patch 8.2.3796: the funcexe_T struct members are not named consistently
Bram Moolenaar <Bram@vim.org>
parents:
26436
diff
changeset
|
2102 funcexe.fe_partial = partial; |
|
17606
ff097edaae89
patch 8.1.1800: function call functions have too many arguments
Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
2103 call_func(s, -1, &rettv, 1, argv, &funcexe); |
|
9589
bf204ab1ce7d
commit https://github.com/vim/vim/commit/72ab729c3dcdea0fba44d8e676602c847e841bcd
Christian Brabandt <cb@256bit.org>
parents:
9015
diff
changeset
|
2104 } |
|
28692
bfd8e25fa207
patch 8.2.4870: Vim9: expression in :substitute is not compiled
Bram Moolenaar <Bram@vim.org>
parents:
28572
diff
changeset
|
2105 else if (expr->v_type == VAR_INSTR) |
|
bfd8e25fa207
patch 8.2.4870: Vim9: expression in :substitute is not compiled
Bram Moolenaar <Bram@vim.org>
parents:
28572
diff
changeset
|
2106 { |
|
bfd8e25fa207
patch 8.2.4870: Vim9: expression in :substitute is not compiled
Bram Moolenaar <Bram@vim.org>
parents:
28572
diff
changeset
|
2107 exe_typval_instr(expr, &rettv); |
|
bfd8e25fa207
patch 8.2.4870: Vim9: expression in :substitute is not compiled
Bram Moolenaar <Bram@vim.org>
parents:
28572
diff
changeset
|
2108 } |
|
10245
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Christian Brabandt <cb@256bit.org>
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10187
diff
changeset
|
2109 if (matchList.sl_list.lv_len > 0) |
|
18576
e9675870c480
patch 8.1.2282: crash when passing many arguments through a partial
Bram Moolenaar <Bram@vim.org>
parents:
18572
diff
changeset
|
2110 // fill_submatch_list() was called |
|
10245
d76ccdacb41e
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Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2111 clear_submatch_list(&matchList); |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
2112 |
|
18576
e9675870c480
patch 8.1.2282: crash when passing many arguments through a partial
Bram Moolenaar <Bram@vim.org>
parents:
18572
diff
changeset
|
2113 if (rettv.v_type == VAR_UNKNOWN) |
|
e9675870c480
patch 8.1.2282: crash when passing many arguments through a partial
Bram Moolenaar <Bram@vim.org>
parents:
18572
diff
changeset
|
2114 // something failed, no need to report another error |
|
29255
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patch 8.2.5146: memory leak when substitute expression nests
Bram Moolenaar <Bram@vim.org>
parents:
29245
diff
changeset
|
2115 eval_result[nested] = NULL; |
|
18576
e9675870c480
patch 8.1.2282: crash when passing many arguments through a partial
Bram Moolenaar <Bram@vim.org>
parents:
18572
diff
changeset
|
2116 else |
|
e9675870c480
patch 8.1.2282: crash when passing many arguments through a partial
Bram Moolenaar <Bram@vim.org>
parents:
18572
diff
changeset
|
2117 { |
|
29255
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patch 8.2.5146: memory leak when substitute expression nests
Bram Moolenaar <Bram@vim.org>
parents:
29245
diff
changeset
|
2118 eval_result[nested] = tv_get_string_buf_chk(&rettv, buf); |
|
5ebc561444fe
patch 8.2.5146: memory leak when substitute expression nests
Bram Moolenaar <Bram@vim.org>
parents:
29245
diff
changeset
|
2119 if (eval_result[nested] != NULL) |
|
5ebc561444fe
patch 8.2.5146: memory leak when substitute expression nests
Bram Moolenaar <Bram@vim.org>
parents:
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diff
changeset
|
2120 eval_result[nested] = vim_strsave(eval_result[nested]); |
|
18576
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patch 8.1.2282: crash when passing many arguments through a partial
Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
2121 } |
|
9626
172131507c85
commit https://github.com/vim/vim/commit/df48fb456fb6bf63d94cad9b302ff01d8ee8d311
Christian Brabandt <cb@256bit.org>
parents:
9589
diff
changeset
|
2122 clear_tv(&rettv); |
|
9589
bf204ab1ce7d
commit https://github.com/vim/vim/commit/72ab729c3dcdea0fba44d8e676602c847e841bcd
Christian Brabandt <cb@256bit.org>
parents:
9015
diff
changeset
|
2123 } |
|
24488
f293bb501b30
patch 8.2.2784: Vim9: cannot use =expr in :substitute
Bram Moolenaar <Bram@vim.org>
parents:
23505
diff
changeset
|
2124 else if (substitute_instr != NULL) |
|
f293bb501b30
patch 8.2.2784: Vim9: cannot use =expr in :substitute
Bram Moolenaar <Bram@vim.org>
parents:
23505
diff
changeset
|
2125 // Execute instructions from ISN_SUBSTITUTE. |
|
29255
5ebc561444fe
patch 8.2.5146: memory leak when substitute expression nests
Bram Moolenaar <Bram@vim.org>
parents:
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diff
changeset
|
2126 eval_result[nested] = exe_substitute_instr(); |
|
9589
bf204ab1ce7d
commit https://github.com/vim/vim/commit/72ab729c3dcdea0fba44d8e676602c847e841bcd
Christian Brabandt <cb@256bit.org>
parents:
9015
diff
changeset
|
2127 else |
|
30598
37aa9fd2ed72
patch 9.0.0634: evaluating "expr" options has more overhead than needed
Bram Moolenaar <Bram@vim.org>
parents:
30355
diff
changeset
|
2128 eval_result[nested] = eval_to_string(source + 2, TRUE, FALSE); |
|
29255
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patch 8.2.5146: memory leak when substitute expression nests
Bram Moolenaar <Bram@vim.org>
parents:
29245
diff
changeset
|
2129 --nesting; |
|
9589
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commit https://github.com/vim/vim/commit/72ab729c3dcdea0fba44d8e676602c847e841bcd
Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
2130 |
|
29255
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patch 8.2.5146: memory leak when substitute expression nests
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parents:
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diff
changeset
|
2131 if (eval_result[nested] != NULL) |
| 7 | 2132 { |
|
2125
b8744d1982d1
updated for version 7.2.407
Bram Moolenaar <bram@zimbu.org>
parents:
2012
diff
changeset
|
2133 int had_backslash = FALSE; |
|
b8744d1982d1
updated for version 7.2.407
Bram Moolenaar <bram@zimbu.org>
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2012
diff
changeset
|
2134 |
|
29255
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patch 8.2.5146: memory leak when substitute expression nests
Bram Moolenaar <Bram@vim.org>
parents:
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diff
changeset
|
2135 for (s = eval_result[nested]; *s != NUL; MB_PTR_ADV(s)) |
| 7 | 2136 { |
|
18812
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
2137 // 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
|
2138 // 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
|
2139 // Skip over a backslashed character. |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2140 if (*s == NL && !rsm.sm_line_lbr) |
| 7 | 2141 *s = CAR; |
| 2142 else if (*s == '\\' && s[1] != NUL) | |
|
2125
b8744d1982d1
updated for version 7.2.407
Bram Moolenaar <bram@zimbu.org>
parents:
2012
diff
changeset
|
2143 { |
| 7 | 2144 ++s; |
| 2173 | 2145 /* Change NL to CR here too, so that this works: |
| 2146 * :s/abc\\\ndef/\="aaa\\\nbbb"/ on text: | |
| 2147 * abc\ | |
| 2148 * def | |
| 2904 | 2149 * Not when called from vim_regexec_nl(). |
| 2173 | 2150 */ |
|
10245
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commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
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10187
diff
changeset
|
2151 if (*s == NL && !rsm.sm_line_lbr) |
| 2173 | 2152 *s = CAR; |
|
2125
b8744d1982d1
updated for version 7.2.407
Bram Moolenaar <bram@zimbu.org>
parents:
2012
diff
changeset
|
2153 had_backslash = TRUE; |
|
b8744d1982d1
updated for version 7.2.407
Bram Moolenaar <bram@zimbu.org>
parents:
2012
diff
changeset
|
2154 } |
|
b8744d1982d1
updated for version 7.2.407
Bram Moolenaar <bram@zimbu.org>
parents:
2012
diff
changeset
|
2155 } |
|
29048
c98fc7a4dde4
patch 8.2.5046: vim_regsub() can overwrite the destination
Bram Moolenaar <Bram@vim.org>
parents:
28692
diff
changeset
|
2156 if (had_backslash && (flags & REGSUB_BACKSLASH)) |
|
2125
b8744d1982d1
updated for version 7.2.407
Bram Moolenaar <bram@zimbu.org>
parents:
2012
diff
changeset
|
2157 { |
|
18812
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
2158 // Backslashes will be consumed, need to double them. |
|
29255
5ebc561444fe
patch 8.2.5146: memory leak when substitute expression nests
Bram Moolenaar <Bram@vim.org>
parents:
29245
diff
changeset
|
2159 s = vim_strsave_escaped(eval_result[nested], (char_u *)"\\"); |
|
2125
b8744d1982d1
updated for version 7.2.407
Bram Moolenaar <bram@zimbu.org>
parents:
2012
diff
changeset
|
2160 if (s != NULL) |
|
b8744d1982d1
updated for version 7.2.407
Bram Moolenaar <bram@zimbu.org>
parents:
2012
diff
changeset
|
2161 { |
|
29255
5ebc561444fe
patch 8.2.5146: memory leak when substitute expression nests
Bram Moolenaar <Bram@vim.org>
parents:
29245
diff
changeset
|
2162 vim_free(eval_result[nested]); |
|
5ebc561444fe
patch 8.2.5146: memory leak when substitute expression nests
Bram Moolenaar <Bram@vim.org>
parents:
29245
diff
changeset
|
2163 eval_result[nested] = s; |
|
2125
b8744d1982d1
updated for version 7.2.407
Bram Moolenaar <bram@zimbu.org>
parents:
2012
diff
changeset
|
2164 } |
| 7 | 2165 } |
| 2166 | |
|
29255
5ebc561444fe
patch 8.2.5146: memory leak when substitute expression nests
Bram Moolenaar <Bram@vim.org>
parents:
29245
diff
changeset
|
2167 dst += STRLEN(eval_result[nested]); |
| 7 | 2168 } |
| 2169 | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2170 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
|
2171 if (can_f_submatch) |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2172 rsm = rsm_save; |
| 7 | 2173 } |
| 2174 #endif | |
| 2175 } | |
| 2176 else | |
| 2177 while ((c = *src++) != NUL) | |
| 2178 { | |
|
29048
c98fc7a4dde4
patch 8.2.5046: vim_regsub() can overwrite the destination
Bram Moolenaar <Bram@vim.org>
parents:
28692
diff
changeset
|
2179 if (c == '&' && (flags & REGSUB_MAGIC)) |
| 7 | 2180 no = 0; |
| 2181 else if (c == '\\' && *src != NUL) | |
| 2182 { | |
|
29048
c98fc7a4dde4
patch 8.2.5046: vim_regsub() can overwrite the destination
Bram Moolenaar <Bram@vim.org>
parents:
28692
diff
changeset
|
2183 if (*src == '&' && !(flags & REGSUB_MAGIC)) |
| 7 | 2184 { |
| 2185 ++src; | |
| 2186 no = 0; | |
| 2187 } | |
| 2188 else if ('0' <= *src && *src <= '9') | |
| 2189 { | |
| 2190 no = *src++ - '0'; | |
| 2191 } | |
| 2192 else if (vim_strchr((char_u *)"uUlLeE", *src)) | |
| 2193 { | |
| 2194 switch (*src++) | |
| 2195 { | |
| 4244 | 2196 case 'u': func_one = (fptr_T)do_upper; |
| 7 | 2197 continue; |
| 4244 | 2198 case 'U': func_all = (fptr_T)do_Upper; |
| 7 | 2199 continue; |
| 4244 | 2200 case 'l': func_one = (fptr_T)do_lower; |
| 7 | 2201 continue; |
| 4244 | 2202 case 'L': func_all = (fptr_T)do_Lower; |
| 7 | 2203 continue; |
| 2204 case 'e': | |
| 4244 | 2205 case 'E': func_one = func_all = (fptr_T)NULL; |
| 7 | 2206 continue; |
| 2207 } | |
| 2208 } | |
| 2209 } | |
|
18812
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
2210 if (no < 0) // Ordinary character. |
| 7 | 2211 { |
| 798 | 2212 if (c == K_SPECIAL && src[0] != NUL && src[1] != NUL) |
| 2213 { | |
|
18812
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
2214 // Copy a special key as-is. |
| 798 | 2215 if (copy) |
| 2216 { | |
|
29048
c98fc7a4dde4
patch 8.2.5046: vim_regsub() can overwrite the destination
Bram Moolenaar <Bram@vim.org>
parents:
28692
diff
changeset
|
2217 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
|
2218 { |
|
c98fc7a4dde4
patch 8.2.5046: vim_regsub() can overwrite the destination
Bram Moolenaar <Bram@vim.org>
parents:
28692
diff
changeset
|
2219 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
|
2220 return 0; |
|
c98fc7a4dde4
patch 8.2.5046: vim_regsub() can overwrite the destination
Bram Moolenaar <Bram@vim.org>
parents:
28692
diff
changeset
|
2221 } |
| 798 | 2222 *dst++ = c; |
| 2223 *dst++ = *src++; | |
| 2224 *dst++ = *src++; | |
| 2225 } | |
| 2226 else | |
| 2227 { | |
| 2228 dst += 3; | |
| 2229 src += 2; | |
| 2230 } | |
| 2231 continue; | |
| 2232 } | |
| 2233 | |
| 7 | 2234 if (c == '\\' && *src != NUL) |
| 2235 { | |
|
18812
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
2236 // Check for abbreviations -- webb |
| 7 | 2237 switch (*src) |
| 2238 { | |
| 2239 case 'r': c = CAR; ++src; break; | |
| 2240 case 'n': c = NL; ++src; break; | |
| 2241 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
|
2242 // 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
|
2243 // case 'e': c = ESC; ++src; break; |
| 7 | 2244 case 'b': c = Ctrl_H; ++src; break; |
| 2245 | |
|
18812
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
2246 // 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
|
2247 // 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
|
2248 default: if (flags & REGSUB_BACKSLASH) |
| 7 | 2249 { |
| 2250 if (copy) | |
|
29048
c98fc7a4dde4
patch 8.2.5046: vim_regsub() can overwrite the destination
Bram Moolenaar <Bram@vim.org>
parents:
28692
diff
changeset
|
2251 { |
|
c98fc7a4dde4
patch 8.2.5046: vim_regsub() can overwrite the destination
Bram Moolenaar <Bram@vim.org>
parents:
28692
diff
changeset
|
2252 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
|
2253 { |
|
c98fc7a4dde4
patch 8.2.5046: vim_regsub() can overwrite the destination
Bram Moolenaar <Bram@vim.org>
parents:
28692
diff
changeset
|
2254 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
|
2255 return 0; |
|
c98fc7a4dde4
patch 8.2.5046: vim_regsub() can overwrite the destination
Bram Moolenaar <Bram@vim.org>
parents:
28692
diff
changeset
|
2256 } |
| 7 | 2257 *dst = '\\'; |
|
29048
c98fc7a4dde4
patch 8.2.5046: vim_regsub() can overwrite the destination
Bram Moolenaar <Bram@vim.org>
parents:
28692
diff
changeset
|
2258 } |
| 7 | 2259 ++dst; |
| 2260 } | |
| 2261 c = *src++; | |
| 2262 } | |
| 2263 } | |
| 798 | 2264 else if (has_mbyte) |
| 2265 c = mb_ptr2char(src - 1); | |
| 7 | 2266 |
|
18812
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
2267 // Write to buffer, if copy is set. |
| 4244 | 2268 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
|
2269 // Turbo C complains without the typecast |
| 4244 | 2270 func_one = (fptr_T)(func_one(&cc, c)); |
| 2271 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
|
2272 // Turbo C complains without the typecast |
| 4244 | 2273 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
|
2274 else // just copy |
| 772 | 2275 cc = c; |
| 2276 | |
| 2277 if (has_mbyte) | |
| 7 | 2278 { |
|
2307
81527f127fb1
Fix: Composing characters in :s substitute text were dropped.
Bram Moolenaar <bram@vim.org>
parents:
2247
diff
changeset
|
2279 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
|
2280 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
|
2281 |
| 7 | 2282 if (copy) |
|
29048
c98fc7a4dde4
patch 8.2.5046: vim_regsub() can overwrite the destination
Bram Moolenaar <Bram@vim.org>
parents:
28692
diff
changeset
|
2283 { |
|
c98fc7a4dde4
patch 8.2.5046: vim_regsub() can overwrite the destination
Bram Moolenaar <Bram@vim.org>
parents:
28692
diff
changeset
|
2284 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
|
2285 { |
|
c98fc7a4dde4
patch 8.2.5046: vim_regsub() can overwrite the destination
Bram Moolenaar <Bram@vim.org>
parents:
28692
diff
changeset
|
2286 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
|
2287 return 0; |
|
c98fc7a4dde4
patch 8.2.5046: vim_regsub() can overwrite the destination
Bram Moolenaar <Bram@vim.org>
parents:
28692
diff
changeset
|
2288 } |
| 772 | 2289 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
|
2290 } |
|
c98fc7a4dde4
patch 8.2.5046: vim_regsub() can overwrite the destination
Bram Moolenaar <Bram@vim.org>
parents:
28692
diff
changeset
|
2291 dst += charlen - 1; |
|
2307
81527f127fb1
Fix: Composing characters in :s substitute text were dropped.
Bram Moolenaar <bram@vim.org>
parents:
2247
diff
changeset
|
2292 if (enc_utf8) |
|
81527f127fb1
Fix: Composing characters in :s substitute text were dropped.
Bram Moolenaar <bram@vim.org>
parents:
2247
diff
changeset
|
2293 { |
|
81527f127fb1
Fix: Composing characters in :s substitute text were dropped.
Bram Moolenaar <bram@vim.org>
parents:
2247
diff
changeset
|
2294 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
|
2295 |
|
18812
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
2296 // 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
|
2297 // 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
|
2298 if (clen < totlen) |
|
81527f127fb1
Fix: Composing characters in :s substitute text were dropped.
Bram Moolenaar <bram@vim.org>
parents:
2247
diff
changeset
|
2299 { |
|
81527f127fb1
Fix: Composing characters in :s substitute text were dropped.
Bram Moolenaar <bram@vim.org>
parents:
2247
diff
changeset
|
2300 if (copy) |
|
29048
c98fc7a4dde4
patch 8.2.5046: vim_regsub() can overwrite the destination
Bram Moolenaar <Bram@vim.org>
parents:
28692
diff
changeset
|
2301 { |
|
c98fc7a4dde4
patch 8.2.5046: vim_regsub() can overwrite the destination
Bram Moolenaar <Bram@vim.org>
parents:
28692
diff
changeset
|
2302 if (dst + totlen - clen > dest + destlen) |
|
c98fc7a4dde4
patch 8.2.5046: vim_regsub() can overwrite the destination
Bram Moolenaar <Bram@vim.org>
parents:
28692
diff
changeset
|
2303 { |
|
c98fc7a4dde4
patch 8.2.5046: vim_regsub() can overwrite the destination
Bram Moolenaar <Bram@vim.org>
parents:
28692
diff
changeset
|
2304 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
|
2305 return 0; |
|
c98fc7a4dde4
patch 8.2.5046: vim_regsub() can overwrite the destination
Bram Moolenaar <Bram@vim.org>
parents:
28692
diff
changeset
|
2306 } |
|
2307
81527f127fb1
Fix: Composing characters in :s substitute text were dropped.
Bram Moolenaar <bram@vim.org>
parents:
2247
diff
changeset
|
2307 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
|
2308 (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
|
2309 } |
|
2307
81527f127fb1
Fix: Composing characters in :s substitute text were dropped.
Bram Moolenaar <bram@vim.org>
parents:
2247
diff
changeset
|
2310 dst += totlen - clen; |
|
81527f127fb1
Fix: Composing characters in :s substitute text were dropped.
Bram Moolenaar <bram@vim.org>
parents:
2247
diff
changeset
|
2311 } |
|
81527f127fb1
Fix: Composing characters in :s substitute text were dropped.
Bram Moolenaar <bram@vim.org>
parents:
2247
diff
changeset
|
2312 } |
|
81527f127fb1
Fix: Composing characters in :s substitute text were dropped.
Bram Moolenaar <bram@vim.org>
parents:
2247
diff
changeset
|
2313 src += totlen - 1; |
| 7 | 2314 } |
|
15603
639b8318472c
patch 8.1.0809: too many #ifdefs
Bram Moolenaar <Bram@vim.org>
parents:
15555
diff
changeset
|
2315 else if (copy) |
|
29048
c98fc7a4dde4
patch 8.2.5046: vim_regsub() can overwrite the destination
Bram Moolenaar <Bram@vim.org>
parents:
28692
diff
changeset
|
2316 { |
|
c98fc7a4dde4
patch 8.2.5046: vim_regsub() can overwrite the destination
Bram Moolenaar <Bram@vim.org>
parents:
28692
diff
changeset
|
2317 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
|
2318 { |
|
c98fc7a4dde4
patch 8.2.5046: vim_regsub() can overwrite the destination
Bram Moolenaar <Bram@vim.org>
parents:
28692
diff
changeset
|
2319 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
|
2320 return 0; |
|
c98fc7a4dde4
patch 8.2.5046: vim_regsub() can overwrite the destination
Bram Moolenaar <Bram@vim.org>
parents:
28692
diff
changeset
|
2321 } |
|
c98fc7a4dde4
patch 8.2.5046: vim_regsub() can overwrite the destination
Bram Moolenaar <Bram@vim.org>
parents:
28692
diff
changeset
|
2322 *dst = cc; |
|
c98fc7a4dde4
patch 8.2.5046: vim_regsub() can overwrite the destination
Bram Moolenaar <Bram@vim.org>
parents:
28692
diff
changeset
|
2323 } |
| 7 | 2324 dst++; |
| 2325 } | |
| 2326 else | |
| 2327 { | |
| 2328 if (REG_MULTI) | |
| 2329 { | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2330 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
|
2331 if (clnum < 0 || rex.reg_mmatch->endpos[no].lnum < 0) |
| 7 | 2332 s = NULL; |
| 2333 else | |
| 2334 { | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2335 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
|
2336 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
|
2337 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
|
2338 - rex.reg_mmatch->startpos[no].col; |
| 7 | 2339 else |
| 2340 len = (int)STRLEN(s); | |
| 2341 } | |
| 2342 } | |
| 2343 else | |
| 2344 { | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2345 s = rex.reg_match->startp[no]; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2346 if (rex.reg_match->endp[no] == NULL) |
| 7 | 2347 s = NULL; |
| 2348 else | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2349 len = (int)(rex.reg_match->endp[no] - s); |
| 7 | 2350 } |
| 2351 if (s != NULL) | |
| 2352 { | |
| 2353 for (;;) | |
| 2354 { | |
| 2355 if (len == 0) | |
| 2356 { | |
| 2357 if (REG_MULTI) | |
| 2358 { | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2359 if (rex.reg_mmatch->endpos[no].lnum == clnum) |
| 7 | 2360 break; |
| 2361 if (copy) | |
|
29048
c98fc7a4dde4
patch 8.2.5046: vim_regsub() can overwrite the destination
Bram Moolenaar <Bram@vim.org>
parents:
28692
diff
changeset
|
2362 { |
|
c98fc7a4dde4
patch 8.2.5046: vim_regsub() can overwrite the destination
Bram Moolenaar <Bram@vim.org>
parents:
28692
diff
changeset
|
2363 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
|
2364 { |
|
c98fc7a4dde4
patch 8.2.5046: vim_regsub() can overwrite the destination
Bram Moolenaar <Bram@vim.org>
parents:
28692
diff
changeset
|
2365 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
|
2366 return 0; |
|
c98fc7a4dde4
patch 8.2.5046: vim_regsub() can overwrite the destination
Bram Moolenaar <Bram@vim.org>
parents:
28692
diff
changeset
|
2367 } |
| 7 | 2368 *dst = CAR; |
|
29048
c98fc7a4dde4
patch 8.2.5046: vim_regsub() can overwrite the destination
Bram Moolenaar <Bram@vim.org>
parents:
28692
diff
changeset
|
2369 } |
| 7 | 2370 ++dst; |
| 2371 s = reg_getline(++clnum); | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2372 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
|
2373 len = rex.reg_mmatch->endpos[no].col; |
| 7 | 2374 else |
| 2375 len = (int)STRLEN(s); | |
| 2376 } | |
| 2377 else | |
| 2378 break; | |
| 2379 } | |
|
18812
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
2380 else if (*s == NUL) // we hit NUL. |
| 7 | 2381 { |
| 2382 if (copy) | |
|
25306
078edc1821bf
patch 8.2.3190: error messages are spread out
Bram Moolenaar <Bram@vim.org>
parents:
24768
diff
changeset
|
2383 iemsg(_(e_damaged_match_string)); |
| 7 | 2384 goto exit; |
| 2385 } | |
| 2386 else | |
| 2387 { | |
|
29048
c98fc7a4dde4
patch 8.2.5046: vim_regsub() can overwrite the destination
Bram Moolenaar <Bram@vim.org>
parents:
28692
diff
changeset
|
2388 if ((flags & REGSUB_BACKSLASH) |
|
c98fc7a4dde4
patch 8.2.5046: vim_regsub() can overwrite the destination
Bram Moolenaar <Bram@vim.org>
parents:
28692
diff
changeset
|
2389 && (*s == CAR || *s == '\\')) |
| 7 | 2390 { |
| 2391 /* | |
| 2392 * Insert a backslash in front of a CR, otherwise | |
| 2393 * it will be replaced by a line break. | |
| 2394 * Number of backslashes will be halved later, | |
| 2395 * double them here. | |
| 2396 */ | |
| 2397 if (copy) | |
| 2398 { | |
|
29048
c98fc7a4dde4
patch 8.2.5046: vim_regsub() can overwrite the destination
Bram Moolenaar <Bram@vim.org>
parents:
28692
diff
changeset
|
2399 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
|
2400 { |
|
c98fc7a4dde4
patch 8.2.5046: vim_regsub() can overwrite the destination
Bram Moolenaar <Bram@vim.org>
parents:
28692
diff
changeset
|
2401 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
|
2402 return 0; |
|
c98fc7a4dde4
patch 8.2.5046: vim_regsub() can overwrite the destination
Bram Moolenaar <Bram@vim.org>
parents:
28692
diff
changeset
|
2403 } |
| 7 | 2404 dst[0] = '\\'; |
| 2405 dst[1] = *s; | |
| 2406 } | |
| 2407 dst += 2; | |
| 2408 } | |
| 2409 else | |
| 2410 { | |
| 772 | 2411 if (has_mbyte) |
| 2412 c = mb_ptr2char(s); | |
| 2413 else | |
| 2414 c = *s; | |
| 2415 | |
| 4244 | 2416 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
|
2417 // Turbo C complains without the typecast |
| 4244 | 2418 func_one = (fptr_T)(func_one(&cc, c)); |
| 2419 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
|
2420 // Turbo C complains without the typecast |
| 4244 | 2421 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
|
2422 else // just copy |
| 772 | 2423 cc = c; |
| 2424 | |
| 2425 if (has_mbyte) | |
| 7 | 2426 { |
| 1332 | 2427 int l; |
|
29048
c98fc7a4dde4
patch 8.2.5046: vim_regsub() can overwrite the destination
Bram Moolenaar <Bram@vim.org>
parents:
28692
diff
changeset
|
2428 int charlen; |
| 1332 | 2429 |
|
18812
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
2430 // Copy composing characters separately, one |
|
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
2431 // at a time. |
| 1332 | 2432 if (enc_utf8) |
| 2433 l = utf_ptr2len(s) - 1; | |
| 2434 else | |
| 2435 l = mb_ptr2len(s) - 1; | |
| 772 | 2436 |
| 2437 s += l; | |
| 2438 len -= l; | |
|
29048
c98fc7a4dde4
patch 8.2.5046: vim_regsub() can overwrite the destination
Bram Moolenaar <Bram@vim.org>
parents:
28692
diff
changeset
|
2439 charlen = mb_char2len(cc); |
| 772 | 2440 if (copy) |
|
29048
c98fc7a4dde4
patch 8.2.5046: vim_regsub() can overwrite the destination
Bram Moolenaar <Bram@vim.org>
parents:
28692
diff
changeset
|
2441 { |
|
c98fc7a4dde4
patch 8.2.5046: vim_regsub() can overwrite the destination
Bram Moolenaar <Bram@vim.org>
parents:
28692
diff
changeset
|
2442 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
|
2443 { |
|
c98fc7a4dde4
patch 8.2.5046: vim_regsub() can overwrite the destination
Bram Moolenaar <Bram@vim.org>
parents:
28692
diff
changeset
|
2444 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
|
2445 return 0; |
|
c98fc7a4dde4
patch 8.2.5046: vim_regsub() can overwrite the destination
Bram Moolenaar <Bram@vim.org>
parents:
28692
diff
changeset
|
2446 } |
| 772 | 2447 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
|
2448 } |
|
c98fc7a4dde4
patch 8.2.5046: vim_regsub() can overwrite the destination
Bram Moolenaar <Bram@vim.org>
parents:
28692
diff
changeset
|
2449 dst += charlen - 1; |
| 7 | 2450 } |
|
15603
639b8318472c
patch 8.1.0809: too many #ifdefs
Bram Moolenaar <Bram@vim.org>
parents:
15555
diff
changeset
|
2451 else if (copy) |
|
29048
c98fc7a4dde4
patch 8.2.5046: vim_regsub() can overwrite the destination
Bram Moolenaar <Bram@vim.org>
parents:
28692
diff
changeset
|
2452 { |
|
c98fc7a4dde4
patch 8.2.5046: vim_regsub() can overwrite the destination
Bram Moolenaar <Bram@vim.org>
parents:
28692
diff
changeset
|
2453 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
|
2454 { |
|
c98fc7a4dde4
patch 8.2.5046: vim_regsub() can overwrite the destination
Bram Moolenaar <Bram@vim.org>
parents:
28692
diff
changeset
|
2455 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
|
2456 return 0; |
|
c98fc7a4dde4
patch 8.2.5046: vim_regsub() can overwrite the destination
Bram Moolenaar <Bram@vim.org>
parents:
28692
diff
changeset
|
2457 } |
|
c98fc7a4dde4
patch 8.2.5046: vim_regsub() can overwrite the destination
Bram Moolenaar <Bram@vim.org>
parents:
28692
diff
changeset
|
2458 *dst = cc; |
|
c98fc7a4dde4
patch 8.2.5046: vim_regsub() can overwrite the destination
Bram Moolenaar <Bram@vim.org>
parents:
28692
diff
changeset
|
2459 } |
| 772 | 2460 dst++; |
| 7 | 2461 } |
| 772 | 2462 |
| 7 | 2463 ++s; |
| 2464 --len; | |
| 2465 } | |
| 2466 } | |
| 2467 } | |
| 2468 no = -1; | |
| 2469 } | |
| 2470 } | |
| 2471 if (copy) | |
| 2472 *dst = NUL; | |
| 2473 | |
| 2474 exit: | |
| 2475 return (int)((dst - dest) + 1); | |
| 2476 } | |
| 2477 | |
| 2478 #ifdef FEAT_EVAL | |
| 2479 /* | |
| 2011 | 2480 * Call reg_getline() with the line numbers from the submatch. If a |
| 2481 * substitute() was used the reg_maxline and other values have been | |
| 2482 * overwritten. | |
| 2483 */ | |
| 2484 static char_u * | |
|
7833
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
2485 reg_getline_submatch(linenr_T lnum) |
| 2011 | 2486 { |
| 2487 char_u *s; | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2488 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
|
2489 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
|
2490 |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2491 rex.reg_firstlnum = rsm.sm_firstlnum; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2492 rex.reg_maxline = rsm.sm_maxline; |
| 2011 | 2493 |
| 2494 s = reg_getline(lnum); | |
| 2495 | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2496 rex.reg_firstlnum = save_first; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2497 rex.reg_maxline = save_max; |
| 2011 | 2498 return s; |
| 2499 } | |
| 2500 | |
| 2501 /* | |
| 1209 | 2502 * Used for the submatch() function: get the string from the n'th submatch in |
| 7 | 2503 * allocated memory. |
| 2504 * Returns NULL when not in a ":s" command and for a non-existing submatch. | |
| 2505 */ | |
| 2506 char_u * | |
|
7833
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
2507 reg_submatch(int no) |
| 7 | 2508 { |
| 2509 char_u *retval = NULL; | |
| 2510 char_u *s; | |
| 2511 int len; | |
| 2512 int round; | |
| 2513 linenr_T lnum; | |
| 2514 | |
| 840 | 2515 if (!can_f_submatch || no < 0) |
| 7 | 2516 return NULL; |
| 2517 | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2518 if (rsm.sm_match == NULL) |
| 7 | 2519 { |
| 2520 /* | |
| 2521 * First round: compute the length and allocate memory. | |
| 2522 * Second round: copy the text. | |
| 2523 */ | |
| 2524 for (round = 1; round <= 2; ++round) | |
| 2525 { | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2526 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
|
2527 if (lnum < 0 || rsm.sm_mmatch->endpos[no].lnum < 0) |
| 7 | 2528 return NULL; |
| 2529 | |
|
16040
13ab270dd68d
patch 8.1.1025: checking NULL pointer after addition
Bram Moolenaar <Bram@vim.org>
parents:
15967
diff
changeset
|
2530 s = reg_getline_submatch(lnum); |
|
13ab270dd68d
patch 8.1.1025: checking NULL pointer after addition
Bram Moolenaar <Bram@vim.org>
parents:
15967
diff
changeset
|
2531 if (s == NULL) // anti-crash check, cannot happen? |
| 7 | 2532 break; |
|
16040
13ab270dd68d
patch 8.1.1025: checking NULL pointer after addition
Bram Moolenaar <Bram@vim.org>
parents:
15967
diff
changeset
|
2533 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
|
2534 if (rsm.sm_mmatch->endpos[no].lnum == lnum) |
| 7 | 2535 { |
|
18812
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
2536 // 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
|
2537 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
|
2538 - rsm.sm_mmatch->startpos[no].col; |
| 7 | 2539 if (round == 2) |
| 418 | 2540 vim_strncpy(retval, s, len); |
| 7 | 2541 ++len; |
| 2542 } | |
| 2543 else | |
| 2544 { | |
|
18812
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
2545 // 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
|
2546 // lines completely and end line up to end col. |
| 7 | 2547 len = (int)STRLEN(s); |
| 2548 if (round == 2) | |
| 2549 { | |
| 2550 STRCPY(retval, s); | |
| 2551 retval[len] = '\n'; | |
| 2552 } | |
| 2553 ++len; | |
| 2554 ++lnum; | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2555 while (lnum < rsm.sm_mmatch->endpos[no].lnum) |
| 7 | 2556 { |
| 2011 | 2557 s = reg_getline_submatch(lnum++); |
| 7 | 2558 if (round == 2) |
| 2559 STRCPY(retval + len, s); | |
| 2560 len += (int)STRLEN(s); | |
| 2561 if (round == 2) | |
| 2562 retval[len] = '\n'; | |
| 2563 ++len; | |
| 2564 } | |
| 2565 if (round == 2) | |
| 2011 | 2566 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
|
2567 rsm.sm_mmatch->endpos[no].col); |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2568 len += rsm.sm_mmatch->endpos[no].col; |
| 7 | 2569 if (round == 2) |
| 2570 retval[len] = NUL; | |
| 2571 ++len; | |
| 2572 } | |
| 2573 | |
| 840 | 2574 if (retval == NULL) |
| 7 | 2575 { |
|
16768
695d9ef00b03
patch 8.1.1386: unessesary type casts for lalloc()
Bram Moolenaar <Bram@vim.org>
parents:
16764
diff
changeset
|
2576 retval = alloc(len); |
| 840 | 2577 if (retval == NULL) |
| 7 | 2578 return NULL; |
| 2579 } | |
| 2580 } | |
| 2581 } | |
| 2582 else | |
| 2583 { | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2584 s = rsm.sm_match->startp[no]; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2585 if (s == NULL || rsm.sm_match->endp[no] == NULL) |
| 7 | 2586 retval = NULL; |
| 2587 else | |
|
20830
9064044fd4f6
patch 8.2.0967: unnecessary type casts for vim_strnsave()
Bram Moolenaar <Bram@vim.org>
parents:
20113
diff
changeset
|
2588 retval = vim_strnsave(s, rsm.sm_match->endp[no] - s); |
| 7 | 2589 } |
| 2590 | |
| 2591 return retval; | |
| 2592 } | |
| 5794 | 2593 |
| 2594 /* | |
| 2595 * Used for the submatch() function with the optional non-zero argument: get | |
| 2596 * the list of strings from the n'th submatch in allocated memory with NULs | |
| 2597 * represented in NLs. | |
| 2598 * Returns a list of allocated strings. Returns NULL when not in a ":s" | |
| 2599 * command, for a non-existing submatch and for any error. | |
| 2600 */ | |
| 2601 list_T * | |
|
7833
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
2602 reg_submatch_list(int no) |
| 5794 | 2603 { |
| 2604 char_u *s; | |
| 2605 linenr_T slnum; | |
| 2606 linenr_T elnum; | |
| 2607 colnr_T scol; | |
| 2608 colnr_T ecol; | |
| 2609 int i; | |
| 2610 list_T *list; | |
| 2611 int error = FALSE; | |
| 2612 | |
| 2613 if (!can_f_submatch || no < 0) | |
| 2614 return NULL; | |
| 2615 | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2616 if (rsm.sm_match == NULL) |
| 5794 | 2617 { |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2618 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
|
2619 elnum = rsm.sm_mmatch->endpos[no].lnum; |
| 5794 | 2620 if (slnum < 0 || elnum < 0) |
| 2621 return NULL; | |
| 2622 | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2623 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
|
2624 ecol = rsm.sm_mmatch->endpos[no].col; |
| 5794 | 2625 |
| 2626 list = list_alloc(); | |
| 2627 if (list == NULL) | |
| 2628 return NULL; | |
| 2629 | |
| 2630 s = reg_getline_submatch(slnum) + scol; | |
| 2631 if (slnum == elnum) | |
| 2632 { | |
| 2633 if (list_append_string(list, s, ecol - scol) == FAIL) | |
| 2634 error = TRUE; | |
| 2635 } | |
| 2636 else | |
| 2637 { | |
| 2638 if (list_append_string(list, s, -1) == FAIL) | |
| 2639 error = TRUE; | |
| 2640 for (i = 1; i < elnum - slnum; i++) | |
| 2641 { | |
| 2642 s = reg_getline_submatch(slnum + i); | |
| 2643 if (list_append_string(list, s, -1) == FAIL) | |
| 2644 error = TRUE; | |
| 2645 } | |
| 2646 s = reg_getline_submatch(elnum); | |
| 2647 if (list_append_string(list, s, ecol) == FAIL) | |
| 2648 error = TRUE; | |
| 2649 } | |
| 2650 } | |
| 2651 else | |
| 2652 { | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2653 s = rsm.sm_match->startp[no]; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2654 if (s == NULL || rsm.sm_match->endp[no] == NULL) |
| 5794 | 2655 return NULL; |
| 2656 list = list_alloc(); | |
| 2657 if (list == NULL) | |
| 2658 return NULL; | |
| 2659 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
|
2660 (int)(rsm.sm_match->endp[no] - s)) == FAIL) |
| 5794 | 2661 error = TRUE; |
| 2662 } | |
| 2663 | |
| 2664 if (error) | |
| 2665 { | |
|
8863
e1b84109506a
commit https://github.com/vim/vim/commit/107e1eef1df3b786ad3ad49fbdb9e058649303b5
Christian Brabandt <cb@256bit.org>
parents:
8825
diff
changeset
|
2666 list_free(list); |
| 5794 | 2667 return NULL; |
| 2668 } | |
|
22143
3ec9e302ec94
patch 8.2.1621: crash when using submatch(0, 1) in substitute()
Bram Moolenaar <Bram@vim.org>
parents:
20996
diff
changeset
|
2669 ++list->lv_refcount; |
| 5794 | 2670 return list; |
| 2671 } | |
| 7 | 2672 #endif |
| 4444 | 2673 |
|
19405
08f4dc2ba716
patch 8.2.0260: several lines of code are duplicated
Bram Moolenaar <Bram@vim.org>
parents:
19384
diff
changeset
|
2674 /* |
|
08f4dc2ba716
patch 8.2.0260: several lines of code are duplicated
Bram Moolenaar <Bram@vim.org>
parents:
19384
diff
changeset
|
2675 * 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
|
2676 */ |
|
08f4dc2ba716
patch 8.2.0260: several lines of code are duplicated
Bram Moolenaar <Bram@vim.org>
parents:
19384
diff
changeset
|
2677 static void |
|
08f4dc2ba716
patch 8.2.0260: several lines of code are duplicated
Bram Moolenaar <Bram@vim.org>
parents:
19384
diff
changeset
|
2678 init_regexec_multi( |
|
08f4dc2ba716
patch 8.2.0260: several lines of code are duplicated
Bram Moolenaar <Bram@vim.org>
parents:
19384
diff
changeset
|
2679 regmmatch_T *rmp, |
|
08f4dc2ba716
patch 8.2.0260: several lines of code are duplicated
Bram Moolenaar <Bram@vim.org>
parents:
19384
diff
changeset
|
2680 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
|
2681 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
|
2682 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
|
2683 { |
|
08f4dc2ba716
patch 8.2.0260: several lines of code are duplicated
Bram Moolenaar <Bram@vim.org>
parents:
19384
diff
changeset
|
2684 rex.reg_match = NULL; |
|
08f4dc2ba716
patch 8.2.0260: several lines of code are duplicated
Bram Moolenaar <Bram@vim.org>
parents:
19384
diff
changeset
|
2685 rex.reg_mmatch = rmp; |
|
08f4dc2ba716
patch 8.2.0260: several lines of code are duplicated
Bram Moolenaar <Bram@vim.org>
parents:
19384
diff
changeset
|
2686 rex.reg_buf = buf; |
|
08f4dc2ba716
patch 8.2.0260: several lines of code are duplicated
Bram Moolenaar <Bram@vim.org>
parents:
19384
diff
changeset
|
2687 rex.reg_win = win; |
|
08f4dc2ba716
patch 8.2.0260: several lines of code are duplicated
Bram Moolenaar <Bram@vim.org>
parents:
19384
diff
changeset
|
2688 rex.reg_firstlnum = lnum; |
|
08f4dc2ba716
patch 8.2.0260: several lines of code are duplicated
Bram Moolenaar <Bram@vim.org>
parents:
19384
diff
changeset
|
2689 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
|
2690 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
|
2691 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
|
2692 rex.reg_icombine = FALSE; |
|
08f4dc2ba716
patch 8.2.0260: several lines of code are duplicated
Bram Moolenaar <Bram@vim.org>
parents:
19384
diff
changeset
|
2693 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
|
2694 } |
|
08f4dc2ba716
patch 8.2.0260: several lines of code are duplicated
Bram Moolenaar <Bram@vim.org>
parents:
19384
diff
changeset
|
2695 |
|
18019
68fd5296bf73
patch 8.1.2005: the regexp.c file is too big
Bram Moolenaar <Bram@vim.org>
parents:
17966
diff
changeset
|
2696 #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
|
2697 |
| 4444 | 2698 static regengine_T bt_regengine = |
| 2699 { | |
| 2700 bt_regcomp, | |
|
4805
66803af09906
updated for version 7.3.1149
Bram Moolenaar <bram@vim.org>
parents:
4770
diff
changeset
|
2701 bt_regfree, |
| 4444 | 2702 bt_regexec_nl, |
| 6328 | 2703 bt_regexec_multi, |
| 4444 | 2704 }; |
| 2705 | |
| 2706 #include "regexp_nfa.c" | |
| 2707 | |
| 2708 static regengine_T nfa_regengine = | |
| 2709 { | |
| 2710 nfa_regcomp, | |
|
4805
66803af09906
updated for version 7.3.1149
Bram Moolenaar <bram@vim.org>
parents:
4770
diff
changeset
|
2711 nfa_regfree, |
| 4444 | 2712 nfa_regexec_nl, |
| 6328 | 2713 nfa_regexec_multi, |
| 4444 | 2714 }; |
| 2715 | |
|
18812
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
2716 // 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
|
2717 // Must match with 'regexpengine'. |
| 4444 | 2718 static int regexp_engine = 0; |
| 6328 | 2719 |
| 4444 | 2720 #ifdef DEBUG |
| 2721 static char_u regname[][30] = { | |
| 2722 "AUTOMATIC Regexp Engine", | |
|
4579
7a2be4a39423
updated for version 7.3.1037
Bram Moolenaar <bram@vim.org>
parents:
4505
diff
changeset
|
2723 "BACKTRACKING Regexp Engine", |
| 4444 | 2724 "NFA Regexp Engine" |
| 2725 }; | |
| 2726 #endif | |
| 2727 | |
| 2728 /* | |
| 2729 * Compile a regular expression into internal code. | |
|
4805
66803af09906
updated for version 7.3.1149
Bram Moolenaar <bram@vim.org>
parents:
4770
diff
changeset
|
2730 * Returns the program in allocated memory. |
|
66803af09906
updated for version 7.3.1149
Bram Moolenaar <bram@vim.org>
parents:
4770
diff
changeset
|
2731 * Use vim_regfree() to free the memory. |
|
66803af09906
updated for version 7.3.1149
Bram Moolenaar <bram@vim.org>
parents:
4770
diff
changeset
|
2732 * Returns NULL for an error. |
| 4444 | 2733 */ |
| 2734 regprog_T * | |
|
7833
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
2735 vim_regcomp(char_u *expr_arg, int re_flags) |
| 4444 | 2736 { |
| 2737 regprog_T *prog = NULL; | |
| 2738 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
|
2739 int called_emsg_before; |
| 4444 | 2740 |
| 2741 regexp_engine = p_re; | |
| 2742 | |
|
18812
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
2743 // Check for prefix "\%#=", that sets the regexp engine |
| 4444 | 2744 if (STRNCMP(expr, "\\%#=", 4) == 0) |
| 2745 { | |
| 2746 int newengine = expr[4] - '0'; | |
| 2747 | |
| 2748 if (newengine == AUTOMATIC_ENGINE | |
| 2749 || newengine == BACKTRACKING_ENGINE | |
| 2750 || newengine == NFA_ENGINE) | |
| 2751 { | |
| 2752 regexp_engine = expr[4] - '0'; | |
| 2753 expr += 5; | |
| 2754 #ifdef DEBUG | |
|
15470
55ccc2d353bd
patch 8.1.0743: giving error messages is not flexible
Bram Moolenaar <Bram@vim.org>
parents:
15339
diff
changeset
|
2755 smsg("New regexp mode selected (%d): %s", |
| 5897 | 2756 regexp_engine, regname[newengine]); |
| 4444 | 2757 #endif |
| 2758 } | |
| 2759 else | |
| 2760 { | |
|
26962
85866e069c24
patch 8.2.4010: error messages are spread out
Bram Moolenaar <Bram@vim.org>
parents:
26958
diff
changeset
|
2761 emsg(_(e_percent_hash_can_only_be_followed_by_zero_one_two_automatic_engine_will_be_used)); |
| 4444 | 2762 regexp_engine = AUTOMATIC_ENGINE; |
| 2763 } | |
| 2764 } | |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
2765 #ifdef DEBUG |
| 4444 | 2766 bt_regengine.expr = expr; |
| 2767 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
|
2768 #endif |
|
15856
e44b7caaf373
patch 8.1.0935: old regexp engine may use invalid buffer
Bram Moolenaar <Bram@vim.org>
parents:
15854
diff
changeset
|
2769 // 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
|
2770 rex.reg_buf = curbuf; |
| 4444 | 2771 |
| 2772 /* | |
| 2773 * First try the NFA engine, unless backtracking was requested. | |
| 2774 */ | |
|
18949
5c405689da3e
patch 8.2.0035: saving and restoring called_emsg is clumsy
Bram Moolenaar <Bram@vim.org>
parents:
18812
diff
changeset
|
2775 called_emsg_before = called_emsg; |
| 4444 | 2776 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
|
2777 prog = nfa_regengine.regcomp(expr, |
| 6533 | 2778 re_flags + (regexp_engine == AUTOMATIC_ENGINE ? RE_AUTO : 0)); |
| 4444 | 2779 else |
| 2780 prog = bt_regengine.regcomp(expr, re_flags); | |
| 2781 | |
|
18812
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
2782 // Check for error compiling regexp with initial engine. |
| 6328 | 2783 if (prog == NULL) |
| 4444 | 2784 { |
| 4460 | 2785 #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
|
2786 if (regexp_engine == BACKTRACKING_ENGINE) // debugging log for BT engine |
| 4444 | 2787 { |
| 2788 FILE *f; | |
| 4460 | 2789 f = fopen(BT_REGEXP_DEBUG_LOG_NAME, "a"); |
| 4444 | 2790 if (f) |
| 2791 { | |
|
4762
47906f888725
updated for version 7.3.1128
Bram Moolenaar <bram@vim.org>
parents:
4760
diff
changeset
|
2792 fprintf(f, "Syntax error in \"%s\"\n", expr); |
| 4444 | 2793 fclose(f); |
| 2794 } | |
| 2795 else | |
|
15470
55ccc2d353bd
patch 8.1.0743: giving error messages is not flexible
Bram Moolenaar <Bram@vim.org>
parents:
15339
diff
changeset
|
2796 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
|
2797 BT_REGEXP_DEBUG_LOG_NAME); |
| 4444 | 2798 } |
| 2799 #endif | |
| 2800 /* | |
| 6328 | 2801 * If the NFA engine failed, try the backtracking engine. |
| 6533 | 2802 * The NFA engine also fails for patterns that it can't handle well |
| 2803 * 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
|
2804 * But don't try if an error message was given. |
| 6533 | 2805 */ |
|
18949
5c405689da3e
patch 8.2.0035: saving and restoring called_emsg is clumsy
Bram Moolenaar <Bram@vim.org>
parents:
18812
diff
changeset
|
2806 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
|
2807 && called_emsg == called_emsg_before) |
| 6328 | 2808 { |
| 6533 | 2809 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
|
2810 #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
|
2811 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
|
2812 #endif |
|
4762
47906f888725
updated for version 7.3.1128
Bram Moolenaar <bram@vim.org>
parents:
4760
diff
changeset
|
2813 prog = bt_regengine.regcomp(expr, re_flags); |
| 6328 | 2814 } |
|
4762
47906f888725
updated for version 7.3.1128
Bram Moolenaar <bram@vim.org>
parents:
4760
diff
changeset
|
2815 } |
| 4444 | 2816 |
| 6328 | 2817 if (prog != NULL) |
| 2818 { | |
|
18812
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
2819 // 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
|
2820 // out to be very slow when executing it. |
| 6328 | 2821 prog->re_engine = regexp_engine; |
| 2822 prog->re_flags = re_flags; | |
| 2823 } | |
| 2824 | |
| 4444 | 2825 return prog; |
| 2826 } | |
| 2827 | |
| 2828 /* | |
|
4805
66803af09906
updated for version 7.3.1149
Bram Moolenaar <bram@vim.org>
parents:
4770
diff
changeset
|
2829 * 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
|
2830 */ |
|
66803af09906
updated for version 7.3.1149
Bram Moolenaar <bram@vim.org>
parents:
4770
diff
changeset
|
2831 void |
|
7833
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
2832 vim_regfree(regprog_T *prog) |
|
4805
66803af09906
updated for version 7.3.1149
Bram Moolenaar <bram@vim.org>
parents:
4770
diff
changeset
|
2833 { |
|
66803af09906
updated for version 7.3.1149
Bram Moolenaar <bram@vim.org>
parents:
4770
diff
changeset
|
2834 if (prog != NULL) |
|
66803af09906
updated for version 7.3.1149
Bram Moolenaar <bram@vim.org>
parents:
4770
diff
changeset
|
2835 prog->engine->regfree(prog); |
|
66803af09906
updated for version 7.3.1149
Bram Moolenaar <bram@vim.org>
parents:
4770
diff
changeset
|
2836 } |
|
66803af09906
updated for version 7.3.1149
Bram Moolenaar <bram@vim.org>
parents:
4770
diff
changeset
|
2837 |
|
18019
68fd5296bf73
patch 8.1.2005: the regexp.c file is too big
Bram Moolenaar <Bram@vim.org>
parents:
17966
diff
changeset
|
2838 #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
|
2839 void |
|
68fd5296bf73
patch 8.1.2005: the regexp.c file is too big
Bram Moolenaar <Bram@vim.org>
parents:
17966
diff
changeset
|
2840 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
|
2841 { |
|
68fd5296bf73
patch 8.1.2005: the regexp.c file is too big
Bram Moolenaar <Bram@vim.org>
parents:
17966
diff
changeset
|
2842 ga_clear(®stack); |
|
68fd5296bf73
patch 8.1.2005: the regexp.c file is too big
Bram Moolenaar <Bram@vim.org>
parents:
17966
diff
changeset
|
2843 ga_clear(&backpos); |
|
68fd5296bf73
patch 8.1.2005: the regexp.c file is too big
Bram Moolenaar <Bram@vim.org>
parents:
17966
diff
changeset
|
2844 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
|
2845 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
|
2846 } |
|
68fd5296bf73
patch 8.1.2005: the regexp.c file is too big
Bram Moolenaar <Bram@vim.org>
parents:
17966
diff
changeset
|
2847 #endif |
|
68fd5296bf73
patch 8.1.2005: the regexp.c file is too big
Bram Moolenaar <Bram@vim.org>
parents:
17966
diff
changeset
|
2848 |
| 6328 | 2849 #ifdef FEAT_EVAL |
| 2850 static void | |
|
7833
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
2851 report_re_switch(char_u *pat) |
| 6328 | 2852 { |
| 2853 if (p_verbose > 0) | |
| 2854 { | |
| 2855 verbose_enter(); | |
|
15543
dd725a8ab112
patch 8.1.0779: argument for message functions is inconsistent
Bram Moolenaar <Bram@vim.org>
parents:
15480
diff
changeset
|
2856 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
|
2857 msg_puts((char *)pat); |
| 6328 | 2858 verbose_leave(); |
| 2859 } | |
| 2860 } | |
| 2861 #endif | |
| 2862 | |
|
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
|
2863 #if defined(FEAT_X11) || defined(PROTO) |
|
4805
66803af09906
updated for version 7.3.1149
Bram Moolenaar <bram@vim.org>
parents:
4770
diff
changeset
|
2864 /* |
|
15306
7fff2d18e191
patch 8.1.0661: clipboard regexp might be used recursively
Bram Moolenaar <Bram@vim.org>
parents:
15211
diff
changeset
|
2865 * 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
|
2866 */ |
|
7fff2d18e191
patch 8.1.0661: clipboard regexp might be used recursively
Bram Moolenaar <Bram@vim.org>
parents:
15211
diff
changeset
|
2867 int |
|
7fff2d18e191
patch 8.1.0661: clipboard regexp might be used recursively
Bram Moolenaar <Bram@vim.org>
parents:
15211
diff
changeset
|
2868 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
|
2869 { |
|
7fff2d18e191
patch 8.1.0661: clipboard regexp might be used recursively
Bram Moolenaar <Bram@vim.org>
parents:
15211
diff
changeset
|
2870 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
|
2871 } |
|
15555
d89c5b339c2a
patch 8.1.0785: depending on the configuration some functions are unused
Bram Moolenaar <Bram@vim.org>
parents:
15543
diff
changeset
|
2872 #endif |
|
15306
7fff2d18e191
patch 8.1.0661: clipboard regexp might be used recursively
Bram Moolenaar <Bram@vim.org>
parents:
15211
diff
changeset
|
2873 |
|
7fff2d18e191
patch 8.1.0661: clipboard regexp might be used recursively
Bram Moolenaar <Bram@vim.org>
parents:
15211
diff
changeset
|
2874 /* |
| 4444 | 2875 * 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
|
2876 * "rmp->regprog" must be a compiled regexp as returned by vim_regcomp(). |
| 6375 | 2877 * Note: "rmp->regprog" may be freed and changed. |
| 4444 | 2878 * Uses curbuf for line count and 'iskeyword'. |
| 6328 | 2879 * When "nl" is TRUE consider a "\n" in "line" to be a line break. |
| 4444 | 2880 * |
| 2881 * Return TRUE if there is a match, FALSE if not. | |
| 2882 */ | |
| 6328 | 2883 static int |
|
11529
998d2cf59caa
patch 8.0.0647: syntax highlighting can make cause a freeze
Christian Brabandt <cb@256bit.org>
parents:
11527
diff
changeset
|
2884 vim_regexec_string( |
|
7833
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
2885 regmatch_T *rmp, |
|
18812
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
2886 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
|
2887 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
|
2888 int nl) |
| 6328 | 2889 { |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2890 int result; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2891 regexec_T rex_save; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2892 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
|
2893 |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
2894 // 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
|
2895 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
|
2896 { |
|
26958
d92e0d85923f
patch 8.2.4008: error messages are spread out
Bram Moolenaar <Bram@vim.org>
parents:
26952
diff
changeset
|
2897 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
|
2898 return FALSE; |
|
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
2899 } |
|
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
2900 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
|
2901 |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2902 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
|
2903 // 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
|
2904 rex_save = rex; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2905 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
|
2906 |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2907 rex.reg_startp = NULL; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2908 rex.reg_endp = NULL; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2909 rex.reg_startpos = NULL; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2910 rex.reg_endpos = NULL; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2911 |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2912 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
|
2913 rmp->regprog->re_in_use = FALSE; |
| 6328 | 2914 |
|
18812
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
2915 // NFA engine aborted because it's very slow. |
| 6328 | 2916 if (rmp->regprog->re_engine == AUTOMATIC_ENGINE |
| 2917 && result == NFA_TOO_EXPENSIVE) | |
| 2918 { | |
| 2919 int save_p_re = p_re; | |
| 2920 int re_flags = rmp->regprog->re_flags; | |
| 2921 char_u *pat = vim_strsave(((nfa_regprog_T *)rmp->regprog)->pattern); | |
| 2922 | |
| 2923 p_re = BACKTRACKING_ENGINE; | |
| 2924 vim_regfree(rmp->regprog); | |
| 2925 if (pat != NULL) | |
| 2926 { | |
| 2927 #ifdef FEAT_EVAL | |
| 2928 report_re_switch(pat); | |
| 2929 #endif | |
| 2930 rmp->regprog = vim_regcomp(pat, re_flags); | |
| 2931 if (rmp->regprog != NULL) | |
|
14358
72d506d94f3f
patch 8.1.0194: possibly use of NULL pointer
Christian Brabandt <cb@256bit.org>
parents:
14354
diff
changeset
|
2932 { |
|
72d506d94f3f
patch 8.1.0194: possibly use of NULL pointer
Christian Brabandt <cb@256bit.org>
parents:
14354
diff
changeset
|
2933 rmp->regprog->re_in_use = TRUE; |
| 6328 | 2934 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
|
2935 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
|
2936 } |
| 6328 | 2937 vim_free(pat); |
| 2938 } | |
| 2939 | |
| 2940 p_re = save_p_re; | |
| 2941 } | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2942 |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2943 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
|
2944 if (rex_in_use) |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2945 rex = rex_save; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
2946 |
| 6390 | 2947 return result > 0; |
| 6328 | 2948 } |
| 2949 | |
| 6375 | 2950 /* |
| 2951 * Note: "*prog" may be freed and changed. | |
| 6390 | 2952 * Return TRUE if there is a match, FALSE if not. |
| 6375 | 2953 */ |
| 2954 int | |
|
7833
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
2955 vim_regexec_prog( |
|
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
2956 regprog_T **prog, |
|
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
2957 int ignore_case, |
|
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
2958 char_u *line, |
|
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
2959 colnr_T col) |
| 6375 | 2960 { |
|
11529
998d2cf59caa
patch 8.0.0647: syntax highlighting can make cause a freeze
Christian Brabandt <cb@256bit.org>
parents:
11527
diff
changeset
|
2961 int r; |
|
998d2cf59caa
patch 8.0.0647: syntax highlighting can make cause a freeze
Christian Brabandt <cb@256bit.org>
parents:
11527
diff
changeset
|
2962 regmatch_T regmatch; |
| 6375 | 2963 |
| 2964 regmatch.regprog = *prog; | |
| 2965 regmatch.rm_ic = ignore_case; | |
|
11529
998d2cf59caa
patch 8.0.0647: syntax highlighting can make cause a freeze
Christian Brabandt <cb@256bit.org>
parents:
11527
diff
changeset
|
2966 r = vim_regexec_string(®match, line, col, FALSE); |
| 6375 | 2967 *prog = regmatch.regprog; |
| 2968 return r; | |
| 2969 } | |
| 2970 | |
| 2971 /* | |
| 2972 * Note: "rmp->regprog" may be freed and changed. | |
| 6390 | 2973 * Return TRUE if there is a match, FALSE if not. |
| 6375 | 2974 */ |
| 4444 | 2975 int |
|
7833
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
2976 vim_regexec(regmatch_T *rmp, char_u *line, colnr_T col) |
| 4444 | 2977 { |
|
11529
998d2cf59caa
patch 8.0.0647: syntax highlighting can make cause a freeze
Christian Brabandt <cb@256bit.org>
parents:
11527
diff
changeset
|
2978 return vim_regexec_string(rmp, line, col, FALSE); |
| 4444 | 2979 } |
| 2980 | |
| 2981 /* | |
| 2982 * Like vim_regexec(), but consider a "\n" in "line" to be a line break. | |
| 6375 | 2983 * Note: "rmp->regprog" may be freed and changed. |
| 6390 | 2984 * Return TRUE if there is a match, FALSE if not. |
| 4444 | 2985 */ |
| 2986 int | |
|
7833
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
2987 vim_regexec_nl(regmatch_T *rmp, char_u *line, colnr_T col) |
| 4444 | 2988 { |
|
11529
998d2cf59caa
patch 8.0.0647: syntax highlighting can make cause a freeze
Christian Brabandt <cb@256bit.org>
parents:
11527
diff
changeset
|
2989 return vim_regexec_string(rmp, line, col, TRUE); |
| 4444 | 2990 } |
| 2991 | |
| 2992 /* | |
| 2993 * Match a regexp against multiple lines. | |
|
14161
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patch 8.1.0098: segfault when pattern with z() is very slow
Christian Brabandt <cb@256bit.org>
parents:
13286
diff
changeset
|
2994 * "rmp->regprog" must be a compiled regexp as returned by vim_regcomp(). |
|
7cac4646c552
patch 8.1.0098: segfault when pattern with z() is very slow
Christian Brabandt <cb@256bit.org>
parents:
13286
diff
changeset
|
2995 * Note: "rmp->regprog" may be freed and changed, even set to NULL. |
| 4444 | 2996 * Uses curbuf for line count and 'iskeyword'. |
| 2997 * | |
| 2998 * Return zero if there is no match. Return number of lines contained in the | |
| 2999 * match otherwise. | |
| 3000 */ | |
| 3001 long | |
|
7833
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Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
3002 vim_regexec_multi( |
|
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
3003 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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18576
diff
changeset
|
3004 win_T *win, // window in which to search or NULL |
|
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
3005 buf_T *buf, // buffer in which to search |
|
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
3006 linenr_T lnum, // nr of line to start looking for match |
|
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
3007 colnr_T col, // column to start looking for match |
|
d34ec6fe207d
patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
3008 int *timed_out) // flag is set when timeout limit reached |
| 4444 | 3009 { |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
3010 int result; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
3011 regexec_T rex_save; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
3012 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
|
3013 |
|
14354
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
3014 // 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:
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diff
changeset
|
3015 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
|
3016 { |
|
26958
d92e0d85923f
patch 8.2.4008: error messages are spread out
Bram Moolenaar <Bram@vim.org>
parents:
26952
diff
changeset
|
3017 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
|
3018 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
changeset
|
3019 } |
|
ffd834f893aa
patch 8.1.0192: executing regexp recursively fails with a crash
Christian Brabandt <cb@256bit.org>
parents:
14169
diff
changeset
|
3020 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
|
3021 |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
3022 if (rex_in_use) |
|
18812
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patch 8.1.2394: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18576
diff
changeset
|
3023 // 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
|
3024 rex_save = rex; |
|
d76ccdacb41e
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Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
3025 rex_in_use = TRUE; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
3026 |
|
11521
578df034735d
patch 8.0.0643: when a pattern search is slow Vim becomes unusable
Christian Brabandt <cb@256bit.org>
parents:
11482
diff
changeset
|
3027 result = rmp->regprog->engine->regexec_multi( |
|
29071
b90bca860b5a
patch 8.2.5057: using gettimeofday() for timeout is very inefficient
Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
3028 rmp, win, buf, lnum, col, timed_out); |
|
14358
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Christian Brabandt <cb@256bit.org>
parents:
14354
diff
changeset
|
3029 rmp->regprog->re_in_use = FALSE; |
| 6328 | 3030 |
|
18812
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Bram Moolenaar <Bram@vim.org>
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18576
diff
changeset
|
3031 // NFA engine aborted because it's very slow. |
| 6328 | 3032 if (rmp->regprog->re_engine == AUTOMATIC_ENGINE |
| 3033 && result == NFA_TOO_EXPENSIVE) | |
| 3034 { | |
| 3035 int save_p_re = p_re; | |
| 3036 int re_flags = rmp->regprog->re_flags; | |
| 3037 char_u *pat = vim_strsave(((nfa_regprog_T *)rmp->regprog)->pattern); | |
| 3038 | |
| 3039 p_re = BACKTRACKING_ENGINE; | |
| 3040 if (pat != NULL) | |
| 3041 { | |
|
28323
82f34ca7b3b7
patch 8.2.4687: "vimgrep /%v/ *" may cause a crash
Bram Moolenaar <Bram@vim.org>
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27752
diff
changeset
|
3042 regprog_T *prev_prog = rmp->regprog; |
|
82f34ca7b3b7
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Bram Moolenaar <Bram@vim.org>
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diff
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|
3043 |
| 6328 | 3044 #ifdef FEAT_EVAL |
| 3045 report_re_switch(pat); | |
| 3046 #endif | |
|
14169
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Christian Brabandt <cb@256bit.org>
parents:
14161
diff
changeset
|
3047 #ifdef FEAT_SYN_HL |
|
14161
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patch 8.1.0098: segfault when pattern with z() is very slow
Christian Brabandt <cb@256bit.org>
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13286
diff
changeset
|
3048 // checking for \z misuse was already done when compiling for NFA, |
|
7cac4646c552
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13286
diff
changeset
|
3049 // allow all here |
|
7cac4646c552
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Christian Brabandt <cb@256bit.org>
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13286
diff
changeset
|
3050 reg_do_extmatch = REX_ALL; |
|
14169
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Christian Brabandt <cb@256bit.org>
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14161
diff
changeset
|
3051 #endif |
| 6328 | 3052 rmp->regprog = vim_regcomp(pat, re_flags); |
|
14169
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Christian Brabandt <cb@256bit.org>
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diff
changeset
|
3053 #ifdef FEAT_SYN_HL |
|
14161
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patch 8.1.0098: segfault when pattern with z() is very slow
Christian Brabandt <cb@256bit.org>
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13286
diff
changeset
|
3054 reg_do_extmatch = 0; |
|
14169
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Christian Brabandt <cb@256bit.org>
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14161
diff
changeset
|
3055 #endif |
|
28323
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patch 8.2.4687: "vimgrep /%v/ *" may cause a crash
Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
3056 if (rmp->regprog == NULL) |
|
82f34ca7b3b7
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Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
3057 { |
|
82f34ca7b3b7
patch 8.2.4687: "vimgrep /%v/ *" may cause a crash
Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
3058 // 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
|
3059 // previous one to avoid "regprog" becoming NULL. |
|
82f34ca7b3b7
patch 8.2.4687: "vimgrep /%v/ *" may cause a crash
Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
3060 rmp->regprog = prev_prog; |
|
82f34ca7b3b7
patch 8.2.4687: "vimgrep /%v/ *" may cause a crash
Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
3061 } |
|
82f34ca7b3b7
patch 8.2.4687: "vimgrep /%v/ *" may cause a crash
Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
3062 else |
|
82f34ca7b3b7
patch 8.2.4687: "vimgrep /%v/ *" may cause a crash
Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
3063 { |
|
82f34ca7b3b7
patch 8.2.4687: "vimgrep /%v/ *" may cause a crash
Bram Moolenaar <Bram@vim.org>
parents:
27752
diff
changeset
|
3064 vim_regfree(prev_prog); |
|
14161
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Christian Brabandt <cb@256bit.org>
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changeset
|
3065 |
|
14358
72d506d94f3f
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Christian Brabandt <cb@256bit.org>
parents:
14354
diff
changeset
|
3066 rmp->regprog->re_in_use = TRUE; |
| 6328 | 3067 result = rmp->regprog->engine->regexec_multi( |
|
29071
b90bca860b5a
patch 8.2.5057: using gettimeofday() for timeout is very inefficient
Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
3068 rmp, win, buf, lnum, col, timed_out); |
|
14358
72d506d94f3f
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Christian Brabandt <cb@256bit.org>
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14354
diff
changeset
|
3069 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
|
3070 } |
| 6328 | 3071 vim_free(pat); |
| 3072 } | |
| 3073 p_re = save_p_re; | |
| 3074 } | |
| 3075 | |
|
10245
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
3076 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
|
3077 if (rex_in_use) |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
3078 rex = rex_save; |
|
d76ccdacb41e
commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d
Christian Brabandt <cb@256bit.org>
parents:
10187
diff
changeset
|
3079 |
| 6390 | 3080 return result <= 0 ? 0 : result; |
| 4444 | 3081 } |